СПОСОБ (ВАРИАНТЫ) И СИСТЕМА УПРАВЛЕНИЯ КОМПРЕССОРНОЙ СТАНЦИЕЙ

FIELD: physics; control. SUBSTANCE: invention relates to a method of controlling a compressor station. A method of controlling a compressor station (1), which includes at least multiple compressors (2) connected to each other into a network, may not only form a switching strategy through an electronic control system (3) for influencing the amount of compressed fluid medium in the station (1) available for one or more users of the station (1), but is also capable of adapting the amount of compressed fluid medium available for one or more users of the station (1) to future operating conditions of the station (1) adaptively to the amount of compressed fluid medium collected from the station. Before launching the switching strategy, different switching strategies are verified by a forecast simulation method, taking a model of the station (1) as the basis, from verified switching strategies using at least one established quality criterion, the relatively most preferable switching strategy is selected and the selected switching strategy is sent to the system (3) for execution in the station. EFFECT: invention is aimed at foreseeing change in pressure in a compressor station. 38 cl, 11 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 536 639 C2 (51) МПК F04C 28/02 (2006.01) F04B 49/06 (2006.01) G05B 17/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011130185/06, 23.12.2009 (24) Дата начала отсчета срока действия патента: 23.12.2009 (72) Автор(ы): Флориан ВАГНЕР (DE), Георг ФРАЙ (DE) (73) Патентообладатель(и): КЭЗЕР КОМПРЕССОРЕН СЕ (DE) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.01.2013 Бюл. № 3 R U 23.12.2008 DE 102008064491.9 (45) Опубликовано: 27.12.2014 Бюл. № 36 0431287 A1, 12.06.1991. EP 1672454 A1, 21.06.2005. DE 10208676 A1, 04.09.2003. RU 2181854 C1, 27.04.2002 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 25.07.2011 2 5 3 6 6 3 9 (56) Список ...

СПОСОБ СОЗДАНИЯ ЗАДАННОГО УРОВНЯ ВАКУУМА В СИСТЕМЕ ДОЕНИЯ И КОМПЬЮТЕРНЫЕ ПРОГРАММНЫЕ ПРОДУКТЫ

... 1. Способ создания заданного уровня вакуума в системе доения, причем указанная система доения содержит, по меньшей мере, два вакуумных насоса (P1, P2) с регулируемой скоростью, отличающийся тем, что: ! используют первый вакуумный насос (Р1) с регулируемой скоростью для создания заданного уровня вакуума в указанной системе доения, ! контролируют потребность в уровне вакуума в системе доения, и когда потребность в уровне вакуума системы доения является такой, что скорость указанного первого вакуумного насоса (Р1) с регулируемой скоростью достигает первого предельного значения скорости, то ! запускают второй вакуумный насос (Р2) с регулируемой скоростью и ! используют указанные первый и второй вакуумные насосы (P1, P2) с регулируемой скоростью параллельно для создания заданного уровня вакуума. ! 2. Способ по п.1, отличающийся тем, что при запуске второго вакуумного насоса (Р2) с регулируемой скоростью увеличивают скорость указанного второго вакуумного насоса (Р2) с регулируемой скоростью и ...

УЛУЧШЕННАЯ НАСОСНАЯ УСТАНОВКА И СПОСОБ КОНТРОЛЯ ТАКОЙ НАСОСНОЙ УСТАНОВКИ

... 1. Насосная установка (IP), содержащая, по меньшей мере, одну первую объемную машину (10) и вторую объемную машину (20), а также модуль контроля (МС), и предназначенная для откачки замкнутого объема (VE) с помощью первой объемной машины (10) и/или второй объемной машины (20), отличающаяся тем, что насосная установка (IP) дополнительно содержит контрольный клапан (VC), который управляется модулем контроля (МС), и датчик давления (CP) для измерения величины давления на выходе первой объемной машины (10) и/или датчик температуры (TP) для измерения величины температуры на выходе первой объемной машины (10) для регулирования газового потока между замкнутым объемом и выходом насосной установки (IP).2. Насосная установка по п. 1, отличающаяся тем, что контрольный клапан (VC) предназначен для коммутации газового потока между первым этапом, на котором газ откачивается только первой объемной машиной (10), и вторым этапом, на котором газ откачивается первой объемной машиной (10) и второй объемной ...

ZWEISTUFIGE TROCKENPRIMAERPUMPE.

Kontrollsystem für zweistufige Vakuumpumpe

Vacuum pumping

Vacuum pump system with light gas pumping and leak detection apparatus comprising the same

Multi-stage vacuum pump

A multi-stage vacuum pump, comprising at least one higher vacuum stage 30, 40, 50, at least one lower vacuum stage 60, 70, 80, 85, and an over-pressure device 120 operable to selectively couple said lower vacuum stage with said higher vacuum stage. This over-pressure device serves as a relief valve, to allow for reduction of pressure in the low vacuum stages thereby preventing improper pump operation. The over-pressure device may comprise a valve biased closed by a biasing force, the valve actuated by a pressure differential between said higher and lower vacuum stages. The stages may comprise a common rotor urged into position by an urging force, where his urging force exceeds said biasing force. The over pressure device may draw working fluid from a lower vacuum stage with the lowest vacuum, or one other than the highest vacuum lower vacuum stage. The over-pressure device may deliver working fluid to a highest vacuum stage of the lower vacuum stages, or to a stage other than the highest ...

Vacuum pump system with light gas pumping and leak detection apparatus comprising the same

A rough vacuum pump system 1000 includes a primary vacuum pump 100 and a secondary vacuum pump 200. The primary vacuum pump is an oil-free positive displacement pump, and has an inlet opening, an outlet opening, a compression stage P between the inlet 170 and outlet openings 180, and an intermediate gas passageway 190 that connects to a gas flow path running through the compression stage. The secondary vacuum pump is connected to the intermediate gas passageway of the primary vacuum pump. The compression ratio of the primary and secondary vacuum pumps operating in combination is greater than that of the compression ratio of either of the primary and secondary vacuum pumps operating individually. A control valve may be positioned at the inlet to the second pump to prevent flow to the pump. A control system may switch off the second pump when the valve is closed. An additional embodiment utilises a scroll pump and has a check valve 140 disposed on the outlet of the primary pump. In further ...

PLANT FOR HIGH PRESSURE COMPRESSION WITH SEVERAL STAGES

MULTI-LEVEL ROTARY COMPRESSOR AND A COOLING DEVICE

PROCEDURE FOR REGULATING A COMPRESSOR AND/OR A MOTOR TAN

MULTI-LEVEL COMPRESSOR PLANT AND PROCEDURE FOR THE REGULATION THE SAME

Installation for high pressure compression with several stages

CONTROL DEVICE FOR CAR AIR-CONDITIONER

Compressor, air conditioner system comprising the compressor and heat pump water heater system

A compressor, an air conditioner system comprising the compressor and a heat pump water heater system. The compressor comprises: a low-pressure compression component, a medium-pressure chamber, a low-pressure chamber air discharge passageway, an enthalpy-increasing component, a high-pressure compression component, a medium-pressure air passageway and a high-pressure chamber air discharge passageway. The medium-pressure air passageway comprises a side passageway section of the low-pressure chamber air discharge passageway and a side passageway section of a high-pressure chamber air suction passageway, and a ratio between a minimum cross section area of the side passageway section of the low-pressure chamber air discharge passageway and a minimum cross section area of the side passageway section of the high-pressure chamber air suction passageway is from 1.4 to 4. In the compressor, the pressure impulse and the flow speed impulse of the refrigerant are relatively small, the first-stage air ...

Multistage compressor unit and method for regulating such multistage compressor unit

METHOD FOR CONTROLLING A ROTARY SCREW COMPRESSOR

The invention relates to a method for controlling a rotary screw compressor, having at least a first and a second air-end, wherein both air-ends are driven separately from one another and speed controlled. According to the invention, the following steps are carried out: detection of a volume flow taken at the outlet of the second air-end; adjustment of the rotational speed of both air-ends, when the removed volume flow fluctuates in a range between a maximum value and a minimum value; opening of a pressure-relief valve, if the volume flow falls below the minimum value; and reduction of the rotational speed of at least the first air-end to a predetermined idling speed (V1L) to reduce the volumetric flow delivered by the first to the second air-end. The invention also relates to a compressor with a rotational screw compressor, comprising at least a first and a second air-end, wherein both air-ends are powered separately and speed controlled, and wherein a control unit is provided, which is ...

PUMPING SYSTEM FOR GENERATING A VACUUM AND METHOD FOR PUMPING BY MEANS OF THIS PUMPING SYSTEM

Système de pompage pour générer un vide (SP), comprenant une pompe à vide principale qui est une pompe à ergots (3) ayant une aspiration d'entrée des gaz (2) reliée à une enceinte à vide (1) et un refoulement de sortie des gaz (4) donnant dans un conduit (5) d'évacuation des gaz vers une sortie d'échappement des gaz (8) hors du système de pompage. Le système de pompage comprend un clapet anti-retour (6) positionné entre le refoulement de sortie des gaz (4) et la sortie d'échappement des gaz (8), et une pompe à vide auxiliaire (7) raccordée en parallèle du clapet anti-retour. La pompe à vide principale (3) est mise en marche afin de pomper les gaz contenus dans l'enceinte à vide (1) et de refouler ces gaz par son refoulement de sortie des gaz (4), simultanément la pompe à vide auxiliaire (7) est mise en marche et continue de pomper tout le temps que la pompe à vide principale (3) pompe les gaz contenus dans l'enceinte à vide (1) et/ou tout le temps que la pompe à vide principale (3) maintient ...

Zweistufige Drehkolbenvakuumpumpe mit sichelförmigem Arbeitsraum.

Drehkolbenverdichter mit verschiebbaren Schaufeln

Multistage exhauster

The exhauster unit has two or more rolling-piston stages in series, each, seen in the flow direction, being of smaller capacity than the preceding one. Each following stage (2,6) has a drive mechanism (4) incorporating a freewheel. Any such stage can be without a bypass valve, and with a threestage system the intermediate and high-pressure stages can be driven via freewheels.

Pumping installation and method for controlling such a system.

La présente invention se rapporte à une installation de pompage (IP) avec au moins une première pompe volumétrique (10) et une deuxième pompe volumétrique (20), ainsi qu’avec un module de contrôle (MC), dans laquelle un gaz est évacué d’un volume enfermé (VE) par le biais de la première pompe volumétrique (10) et/ou de la deuxième pompe volumétrique (20), où l’installation de pompage (IP) comprend en outre au moins une valve de contrôle (VC) qui est contrôlée par le module de contrôle (MC) afin de régler le flux de gaz entre le volume enfermé (VE) et la sortie de l’installation de pompage (IP).

Pumping system and method of monitoring such pumping installation.

La présente invention se rapporte à une installation de pompage avec au moins une première machine volumétrique (10) et une deuxième machine volumétrique (20), ainsi quavec un module de contrôle (MC), dans laquelle un gaz est évacué dun volume enfermé (VE) par le biais de la première machine volumétrique (10) et/ou de la deuxième machine volumétrique (20), où linstallation de pompage comprend en outre au moins une valve de contrôle (VC) qui est contrôlée par le module de contrôle (MC) afin de régler le flux de gaz entre le volume enfermé (VE) et la sortie de linstallation de pompage.

Mehrstufige und energiesparende Vakuumpumpenanordnung mit Wälzkolbenvakuumpumpe in der ersten Stufe.

Eine mehrstufige und energiesparende Vakuumpumpenanordnung mit einer Wälzkolbenvakuumpumpe in der ersten Stufe umfasst ein an einer Ansaugeinlassöffnung angeordnetes Absperrventil (13), durch welches ein nicht-kondensiertes Gas empfangen wird, das von einem Kondensator eines Kraftwerks abgesaugt wird, wobei eine erste Wälzkolbenvakuumpumpe (1) mit dem an der Ansaugeinlassöffnung angeordneten Absperrventil verbunden ist, um das das an der Ansaugeinlassöffnung angeordnete Absperrventil passierende Gas zu empfangen und zu komprimieren, wobei ferner mindestens eine zweite Vakuumpumpe (2) angeordnet ist, die seriell mit der ersten Wälzkolbenvakuumpumpe verbunden ist, um das von der ersten Wälzkolbenvakuumpumpe (1) vorkomprimierte Gas weiter zu komprimieren, wobei sämtliche zweite Vakuumpumpen seriell verbunden sind, wenn mehr als eine zweite Vakuumpumpe (2) vorhanden ist. Eine letztstufige Vakuumpumpe (3) ist mit der zweiten Vakuumpumpe (2) verbunden, um das von der zweiten Vakuumpumpe (2) ausgestoßene ...

功率调制涡旋机

... 本发明涉及一种设有独特的功率调制装置的涡旋压缩机，其适用于制冷和空调系统中。在一组实施例中，通过涡旋件间的相对轴向运动形成泄漏通路来调制压缩机的功率。在另一组实施例中通过减小一个涡旋件的运转半径形成泄漏通路进行调制。这两种涡旋件分离可以时间脉冲方式完成，从而通过选择负载和卸载时间的期间可实现全范围的调制以提高全系统的效率。电机控制装置也可用于上述两种方法中以提高减少负载期间电机的效率。另外上述调制装置中，还可以结合使用延迟吸入的功率调制方式，以便提高在一定条件下的工作效率。 ...

Purging gas system with the dry vacuum pump and the purge method

For comprises three or more than three of the compressor of the multi-compressor system oil balance device

Simulation-supported method for controlling and regulating compressed air stations

FAST PUMPING Of ENCLOSURE WITH LIMITATION Of ENERGY

The device has a motor (1) driving a ROOTS type mechanical dry pump (2) with four-stages (5-8) comprising suction sides (5c-8c) and outlets (5d-8d). Inter-staged pipelines (9-11) connect the outlets (5d-7d) to the sides (6c-8c), respectively. Bypass lines (12, 13) are arranged between the side (5c) and the pipeline (9) and between the pipelines (9, 10), respectively. Bypass lines (14, 15) are arranged between the pipelines (10, 11) and between the pipeline (11) and the outlet (8d), respectively. Valves (16-19) are inserted in the pipeline (9, 11) and in the bypass lines (13, 15). An independent claim is also included for a method for vacuum pumping by a multi-staged mechanical dry pump.

DEVICE OF COMPRESSION, AND THERMODYNAMIC SYSTEM INCLUDING/UNDERSTANDING SUCH A DEVICE OF COMPRESSION

Dispositif de compression (6) comprend un premier compresseur (7) et un deuxième compresseur (8) montés en parallèle, chaque compresseur comprenant une enceinte étanche (9) comportant une partie basse pression (11) contenant un moteur (12) et un carter d'huile (13), une conduite d'égalisation de niveau d'huile (24) mettant en communication les carters d'huile (13) des premier et deuxième compresseurs (7, 8), et des moyens de commande (29) agencés pour commander la mise en marche et l'arrêt des premier et deuxième compresseurs (7, 8). Le premier compresseur (7) comprend des premiers moyens de détection (30) couplés aux moyens de commande (29) et agencés pour détecter un niveau d'huile dans le carter d'huile (13) du premier compresseur (7). Les moyens de commande (29) sont agencés pour commander un arrêt du deuxième compresseur (8) lorsque le niveau d'huile détecté par les premiers moyens de détection (30) descend en dessous d'une première valeur prédéterminée. Compression device (6) comprises a first compressor (7) and a second compressor (8) connected in parallel, each compressor comprising a sealed enclosure (9) having a low pressure portion (11) containing a motor (12) and a housing of oil (13), an oil level equalizing line (24) putting in communication the oil sump (13) of the first and second compressors (7, 8), and control means (29) arranged to control the starting and stopping of the first and second compressors (7, 8). The first compressor (7) comprises first detection means (30) coupled to the control means (29) and arranged to detect an oil level in the oil sump (13) of the first compressor (7). The control means (29) are arranged to control a stopping of the second compressor (8) when the oil level detected by the first detection means (30) falls below a first predetermined value.

VACUUM PUMP MULTISTAGE OF CIG TYPE

VACUUM PUMP SEVERAL STAGES

COMPRESSION DEVICE AND THERMODYNAMIC SYSTEM COMPRISING SUCH A COMPRESSION DEVICE

Ce dispositif de compression (6) comprend un premier et un deuxième compresseurs (7, 8) montés en parallèle, et une ligne d'égalisation de niveau d'huile (44) agencée pour relier fluidiquement les carters d'huile (31) des premier et deuxième compresseurs (7, 8). La ligne d'égalisation de niveau d'huile (44) comprend une portion de régulation de niveau d'huile (45) disposée à proximité de l'un des premier et deuxième compresseurs (7, 8) et comportant une paroi de barrage s'étendant transversalement à la direction longitudinale de ladite portion de régulation de niveau d'huile (45) et une ouverture d'écoulement agencée de telle sorte que, lorsque le niveau d'huile dans le carter d'huile (31) du compresseur situé à proximité de la portion de régulation de niveau d'huile (45) s'étend au dessus du niveau supérieur de la paroi de barrage, de l'huile s'écoule à travers l'ouverture d'écoulement en direction de l'autre compresseur. The compression device (6) comprises a first and a second compressor (7, 8) connected in parallel, and an oil level equalization line (44) arranged to fluidically connect the oil sump (31) first and second compressors (7, 8). The oil level equalization line (44) comprises an oil level regulating portion (45) disposed adjacent to one of the first and second compressors (7, 8) and having a dam wall extending transversely to the longitudinal direction of said oil level regulating portion (45) and a flow opening arranged such that, when the oil level in the oil sump (31) of the compressor located near the oil level regulating portion (45) extends above the upper level of the barrier wall, oil flows through the flow opening towards the other compressor.

Pompe à vide à plusieurs étages

Pompe à vide à plusieurs étages, destinée à produire un vide fin et très poussé dont le côté aspiration du premier étage est relié au côté sortie du deuxième étage, par une conduite de liaison, caractérisée en ce que le côté aspiration 9 du premier étage 1 de la pompe et le côté aspiration 7 du deuxième étage de la pompe 2 sont directement reliés à la tubulure d'aspiration 3, respectivement par la conduite 4 et la conduite 5 dans laquelle est placée une vanne de suppression 8.

IMPROVED PRESSING DEVICE AND METHOD FOR PUMPING MEDICINAL LIQUID, AND DEVICE AND METHOD FOR SUPPLYING MEDICINAL LIQUID WITH SAME

According to the present invention, disclosed are an improved pressing device and method for pumping a medicinal liquid, and a device and a method for supplying a medicinal liquid with the same. The pressing device for pumping a medicinal liquid according to the present invention comprises: a second housing having an indirect liquid chamber for accommodating an indirect liquid; a piston provided in the second housing, and pressing the indirect liquid; a cup member closely placed and mounted on the outside of the piston; a piston rod connected to the piston, and moving the piston in an axial direction; and a driving member connected to the piton rod, and driving the piston rod. The end of the cup member is fixed and mounted on the inside of the second housing. The cup member comprises: an outer elastic member capable of being elastically deformed not to be elastically deformed in an axial direction of the piston but to be elastically deformed in a circumferential direction of the piston; ...

VARIABLE FREQUENCY COMPRESSOR FOR IMPROVING THE ENERGY EFFICIENCY OF A VARIABLE FREQUENCY MOTOR AND A CONTROL METHOD OF THE SAME

PURPOSE: A variable frequency compressor and a control method of the same is provided to improve the efficiency of a compressor by reducing over-compression loss by compressing refrigerant in a 2 level compression mode in a low operating frequency. CONSTITUTION: A variable frequency compressor comprises: a shell(100) which forms a sealed room; compression chambers which is installed in the inside of the shell and compresses refrigerant; a frequency variable motor(200) which generates necessary power to compress the refrigerant; and a valve(700) which controls the flow of the refrigerant which is inhaled to the compression room or discharged from the compression room. COPYRIGHT KIPO 2010 ...

ADAPTIVE CONTROL FOR REFRIGERATION SYSTEM USING DUTY CYCLE SCROLL COMPRESSOR MODULATED AT PULSE WIDTH

PURPOSE: An adaptive control for a refrigeration system using a duty cycle scroll compressor modulated at pulse width is provided to supply a distributed refrigeration system operated by a compressor modulated at the special pulse width with a condenser arranged both on and in a refrigeration case. CONSTITUTION: An adaptive control for a refrigeration system is serviced by a compressor(30) modulated at the special pulse width and connected to a condenser(32) and an evaporator(42). The system services the condenser and the compressor to a group of adjacent refrigeration cases(34). Each case is a distributed type with a self-evaporator. A controller(52) is connected to a load sensor for generating a variable duty cycle control signal. The duty cycle is a demand function of refrigeration. The automatic adaptive regulation control for the system is supplied with using a fuzzy logic method. © KIPO 2004 ...

진공 펌프 시스템

... 서로 평행하게 연결되고 입구 측이 챔버(40, 50, 60)에 각각 연결되는 복수의 진공 펌프(P41, P42, P43, P44, P45, P51, P52, P61, P62), 진공 펌프(P41, P42, P43, P44, P45, P51, P52, P61, P62)의 출구 측에 연결되는 출구 라인(41), 및 적어도 하나의 진공 펌프(P41, P42, P43, P44, P45, P51, P52, P61, P62)의 입구 측을 출구 라인(41)에 연결하는 중간 라인(42)을 포함하는 진공 펌프 시스템(4, 5, 6)에 있어서, 모든 진공 펌프(P41, P42, P43, P44, P45, P51, P52, P61, P62)는 펌핑-아웃 기간 동안 병렬 연결되도록 스위칭되고, 진공 펌프(P41, P42, P43, P44, P45, P51, P52, P61, P62) 중 적어도 하나는 유휴 기간 동안 배압 펌프로서 다른 진공 펌프들과 직렬 연결되도록 스위칭되는 것을 특징으로 한다.

ROTARY COMPRESSOR

A rotary compressor comprises a motor portion (22) and a compression mechanism portion (21) for carrying out a two-stage compression, which are provided within a sealed housing (1). The motor portion includes a stator (22a) and a rotor (22b). The compression mechanism portion includes a first cylinder (23a), a second cylinder (23b), a crankshaft (27), a main bearing (25) and a sub-bearing (26). The crankshaft is used to drive respectively a first piston (28a) and a second piston (28b) to rotate eccentrically within a compression chamber (24a) of the first cylinder and a compression chamber (24b) of the second cylinder. The main bearing and the sub-bearing are used to support the crankshaft. The ends of a first slider (29a) and a second slider (29b) are respectively in contact with the outer circumferences of the first piston and the second piston. The gas discharged from the compression chamber of the first cylinder into the sealed housing is sucked into the compression chamber of the second ...

Oil-injected ones meertrapsmeertraps compressor institution and working method for heading a compressor institution

A VARIABLE CAPACITY COMPRESSOR

A variable capacity compressor includes two compression chambers and a device for changing capacity. The compressor is connected with a fluid-storing container. The outlet of the fluid-storing container is divided into two ways. The two compression chambers are connected in series or parallel through the above said two ways and a four-way to two-way valve. The variable capacity of the compressor is controlled in two stages, one is the first stage compression chamber’s discharging capacity, another is the two compression chambers’s total discharging capacity. The process technics of the compressor is simplified, the mounting space is reduced, the producing cost is lowered and the control method is reliable.

Method of pumping in a system of vacuum pumps and system of vacuum pumps

The present invention relates to a pumping method in a pumping system (SP, SPP) comprising: a main lubricated rotary vane vacuum pump (3) with a gas inlet port (2) connected to a vacuum chamber (1) and a gas outlet port (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (SP, SPP), a non-return valve (6) positioned in the conduit (5) between the gas outlet port (4) and the gas outlet (8), and an auxiliary lubricated rotary vane vacuum pump (7) connected in parallel to the non-return valve (6). According to this method, the main lubricated rotary vane vacuum pump (3) is activated in order to pump the gases contained in the vacuum chamber (1) through the gas outlet port (4), simultaneously the auxiliary lubricated rotary vane vacuum pump (7) is activated and continues to operate all the while that the main lubricated rotary vane vacuum pump (3) pumps the gases contained in the vacuum chamber (1) and/or all the while that the main lubricated rotary ...

An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor

A control for a refrigeration system serviced by a special pulse width modulated compressor (30) coupled to a condenser (32)and evaporator (42). The system can be of the distributed type wherein the condenser (32) and compressor (30) may be coupled to service a group of adjacent refrigeration cases, wherein each case would have its own evaporator (42). A controller (52) is coupled to a load sensor (58) for producing a variable duty cycle control signal (54) in which the duty cycle is a function of demand for cooling. Moreover, fuzzy logic technique may be utilized in order to provide self adaptive tuning control for the system.

AN ADAPTIVE CONTROL FOR A REFRIGERATION SYSTEM USING PULSE WIDTH MODULATED DUTY CYCLE SCROLL COMPRESSOR

A control for a refrigeration system serviced by a special pulse width modulated compressor (30) coupled to a condenser (32) and evaporator (42). The system can be of the distributed type wherein the condenser (32) and compressor (30) may be coupled to service a group of adjacent refrigeration cases, wherein each case would have its own evaporator (42). A controller (52) is coupled to a load sensor (58) for producing a variable duty cycle control signal (54) in which the duty cycle is a function of demand for cooling. Moreover, fuzzy logic technique may be utilized in order to provide self adaptive tuning control for the system.

Method and device for the compression of a gaseous medium

СПОСОБ, УСТРОЙСТВО И НАБОР ДАННЫХ (ВАРИАНТЫ) ДЛЯ УПРАВЛЕНИЯ КОМПРЕССОРНОЙ УСТАНОВКОЙ

Изобретение относится к способу управления компрессорной установкой, к устройству управления, а также набору данных для управления компрессорной установкой. В способе управления компрессорной установкой (1), которая включает в себя несколько компрессоров (2), при этом посредством установки (1) в системе сжатой текучей среды должно поддерживаться предварительно определенное избыточное давление, при этом через фиксированные или переменные интервалы времени принимают решения о действиях по переключению для адаптации системы к фактическим условиям. На шаге предварительного отбора исключают альтернативы переключений из большого числа комбинаторно имеющихся в наличии альтернатив переключений. На шаге главного отбора оставшиеся альтернативы переключений оценивают относительно друг друга с привлечением одного или нескольких критериев оптимизации и выбирают оптимальную для предварительно заданных критериев альтернативу переключений. На шаге управления выбранную альтернативу переключений выдают для ...

СПОСОБ УПРАВЛЕНИЯ УСТАНОВКОЙ СЖАТОГО ВОЗДУХА И КОНТРОЛЛЕР И УСТАНОВКА СЖАТОГО ВОЗДУХА ДЛЯ ПРИМЕНЕНИЯ ТАКОГО СПОСОБА

FIELD: engines and pumps. SUBSTANCE: compressed air plant consists of several compressed air networks (2 and 3) having at least one jointly controlled component; at that, on the basis of these measurements at least of one of the above networks (2 and 3) of compressed air, at least the above common component (11) is controlled at least with one controller (20). EFFECT: lower energy consumption and automation of control. 16 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 422 677 (13) C2 (51) МПК F04B 49/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009105495/06, 21.06.2007 (24) Дата начала отсчета срока действия патента: 21.06.2007 (72) Автор(ы): ЛЕФЕВР Тин Мария Антуанетт (BE), ПЕТТЕРССОН Йохан Георг Урбан (BE) R U (73) Патентообладатель(и): АТЛАС КОПКО ЭРПАУЭР, НАМЛОЗЕ ВЕННОТСХАП (BE) Приоритет(ы): (30) Конвенционный приоритет: 18.07.2006 BE 2006/0393 (43) Дата публикации заявки: 27.08.2010 Бюл. № 24 2 4 2 2 6 7 7 (45) Опубликовано: 27.06.2011 Бюл. № 18 (56) Список документов, цитированных в отчете о поиске: WO 98/32971 A1, 30.07.1998. WO 96/16271 A1, 30.05.1996. RU 2005125419 A, 20.02.2006. RU 2258838 C2, 20.08.2005. SU 638748 A, 25.12.1978. 2 4 2 2 6 7 7 R U (86) Заявка PCT: BE 2007/000063 (21.06.2007) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.02.2009 (87) Публикация заявки РСТ: WO 2008/009072 (24.01.2008) Адрес для переписки: 129090, Москва, ул.Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. А.В.Мицу, рег.№ 364 (54) СПОСОБ УПРАВЛЕНИЯ УСТАНОВКОЙ СЖАТОГО ВОЗДУХА И КОНТРОЛЛЕР И УСТАНОВКА СЖАТОГО ВОЗДУХА ДЛЯ ПРИМЕНЕНИЯ ТАКОГО СПОСОБА (57) Реферат: Способ и контроллер предназначены для управления установкой сжатого воздуха. Установка сжатого воздуха состоит из нескольких сетей (2 и 3) сжатого воздуха имеющих, по меньшей мере, один совместно управляемый компонент, при этом на основе данных измерений, по ...

НАСОСНАЯ СИСТЕМА ДЛЯ СОЗДАНИЯ ВАКУУМА И СПОСОБ ОТКАЧИВАНИЯ С ИСПОЛЬЗОВАНИЕМ ДАННОЙ НАСОСНОЙ СИСТЕМЫ

Группа изобретений относится к области вакуумной техники. Насосная система (SP), предназначенная для создания вакуума, включает основной безмасляный винтовой насос (3), в котором имеется заборный впуск (2) для газа, соединенный с вакуумной камерой (1), и выпуск (4) для выдува газа, выходящий в канал (5) отведения газа в направлении выпуска (8) для выхода газа из насосной системы. Система (SP) включает невозвратный клапан (6), расположенный между выпусками (4, 8), и вспомогательный вакуумный насос (7), подсоединенный параллельно с клапаном (6). Насос (3) приводится в действие с целью откачивания газа, находящегося в камере (1), и выдува этого газа через выпуск (4), одновременно приводится в действие насос (7). Насос (7) продолжает работать все время, в течение которого насос (3) откачивает газ из камеры (1), и/или все время, в течение которого насос (3) поддерживает определенное давление в камере (1). Группа изобретений направлена на обеспечение возможности получения высокого вакуума и большой ...

СПОСОБ УПРАВЛЕНИЯ УСТАНОВКОЙ ДЛЯ СЖАТОГО ВОЗДУХА, УСТАНОВКА ДЛЯ СЖАТОГО ВОЗДУХА И КОНТРОЛЛЕР ДЛЯ ОСУЩЕСТВЛЕНИЯ ТАКОГО СПОСОБА

1. Способ управления модулем (1) для сжатого воздуха, содержащим одну или несколько сетей сжатого воздуха, а также множество сообщающихся контроллеров (6, 9, 13, 23, 24, 25 или 26) для управления компонентами, которые составляют часть упомянутой сети сжатого воздуха, отличающийся тем, что управление указанными компонентами выполняют так, что ни один из контроллеров (6, 9, 13, 23, 24, 25 или 26) не определяет рабочие условия ни одного из компонентов, управляемых другими контроллерами. ! 2. Способ по п.1, отличающийся тем, что упомянутые компоненты модуля (1) для сжатого воздуха состоят, по меньшей мере, из ряда следующих компонентов: пользователь сжатого воздуха, источник сжатого воздуха, устройство обработки сжатого воздуха или клапан сжатого воздуха. ! 3. Способ по п.1 или 2, отличающийся тем, что он является последовательным, другими словами, несколько из упомянутых управляемых компонентов модуля (1) для сжатого воздуха установлены в виде заданной последовательности и их включают или выключают, и/или регулируют в соответствии с упомянутой последовательностью на основе потребления сжатого воздуха модулем (1) для сжатого воздуха. ! 4. Способ по п.3, отличающийся тем, что компоненты разных типов установлены в виде отдельной последовательности. ! 5. Способ по п.3, отличающийся тем, что компоненты разных типов перемешаны в последовательностях. ! 6. Способ по п.3, отличающийся тем, что разные последовательности установлены оператором и/или определены на основе переменных величин, таких как время, дата, давление, расход, точка росы, качество воздуха и/или температура. ! 7. Способ по любому из пп.1, 2, 4-6, отличающийся тем, что разными управляемыми компон� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2009 105 506 (13) A (51) МПК F04B 49/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2009105506/06, 21.06.2007 (71) Заявитель(и): АТЛАС КОПКО ЭРПАУЭР, НАМЛОЗЕ ВЕННОТСХАП (BE) (30) Конвенционный ...

СПОСОБ ОТКАЧИВАНИЯ В СИСТЕМЕ ВАКУУМНЫХ НАСОСОВ И СИСТЕМА ВАКУУМНЫХ НАСОСОВ

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 102 492 A (51) МПК F04C 25/02 (2006.01) F04C 28/02 (2006.01) F04C 18/344 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017102492, 27.06.2014 (71) Заявитель(и): АТЕЛЬЕ БУШ СА (CH) Приоритет(ы): (22) Дата подачи заявки: 27.06.2014 (43) Дата публикации заявки: 27.07.2018 Бюл. № 21 R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.01.2017 (72) Автор(ы): МЮЛЛЕР Дидье (CH), ЛЯРШЕ Жан Эрик (FR), ИЛЬЧЕВ Теодор (FR) (86) Заявка PCT: EP 2014/063725 (27.06.2014) WO 2015/197138 (30.12.2015) R U (54) СПОСОБ ОТКАЧИВАНИЯ В СИСТЕМЕ ВАКУУМНЫХ НАСОСОВ И СИСТЕМА ВАКУУМНЫХ НАСОСОВ (57) Формула изобретения 1. Способ откачивания в системе (SP, SPP) вакуумных насосов, содержащей: главный вакуумный насос (3) со смазываемыми пластинами, имеющий патрубок (2) для впуска газов, соединенный с вакуумной камерой (1), и патрубок (4) для выпуска газов, ведущий в трубу (5) и открывающийся на выпуске (8) для газов системы (SP, SPP) вакуумных насосов; обратный клапан (6), расположенный в трубе (5) между патрубком (4) для выпуска газов и выпуском (8) для газов; и вспомогательный вакуумный насос (7) со смазываемыми пластинами, подсоединенный параллельно обратному клапану (6), причем способ отличается тем, что: активируют главный вакуумный насос (3) для откачивания газов, содержащихся в вакуумной камере (1), через патрубок (4) для выпуска газов; одновременно активируют вспомогательный вакуумный насос (7); и обеспечивают непрерывную работу вспомогательного вакуумного насоса (7) все то время, пока главный вакуумный насос (3) откачивает газы, содержащиеся в вакуумной камере (1), и/или все то время, пока главный вакуумный насос (3) поддерживает заданное давление в вакуумной камере (1). 2. Способ откачивания по п.1, отличающийся тем, что выпуск вспомогательного вакуумного насоса (7) присоединен к выпуску (8) для газов после обратного клапана Стр.: 1 A 2 0 1 7 1 0 2 4 9 2 A Адрес для ...

СПОСОБ УПРАВЛЕНИЯ ИЛИ ЖЕ РЕГУЛИРОВАНИЯ КОМПРЕССОРНЫХ СТАНЦИЙ С ИСПОЛЬЗОВАНИЕМ ИМИТАЦИОННОГО МОДЕЛИРОВАНИЯ

... 1. Способ управления или же регулирования компрессорной станцией (1), которая включает в себя по меньшей мере несколько объединенных друг с другом в сеть компрессоров (2), прежде всего с разными техническими характеристиками, и, факультативно, другие приборы компрессорной техники,который, прежде всего в циклах управления, может не только формировать стратегии (10) переключений посредством электронной системы (3) управления для оказания влияния на количество имеющейся в любое время в распоряжении одного или нескольких пользователей компрессорной станции (1) сжатой текучей среды (4) в компрессорной станции (1), но и в состоянии приспосабливать имеющееся в любое время в распоряжении одного или нескольких пользователей компрессорной станции (1) количество сжатой текучей среды (4) к будущим условиям работы компрессорной станции (1) адаптивно к отбираемому количеству сжатой текучей среды (4) из компрессорной станции (1),при этом перед запуском стратегии (10) переключений разные стратегии (10) ...

ПEPBИЧHЫЙ ДBУXCTУПEHЧATЫЙ POTOPHЫЙ HACOC

}г .сльзование: дл  первичного вакуу- мирозани . Сущность изобретени : ступень низкого давлени  насоса, выполненна  в виде двухроторной винтовой ступени 4, сообщена со ступенью высокого давлени , выю 13 полненной в виде динамического насось 5. посредством соединительного трубопровода 31. Ступени могут иметь как общий привод , так и два различных привода 13 и 32, Соединительный трубопровод 31 сообщен с полостью 2 всасывани  посредством байпаса 25, снабженного разгрузочным клапаном 27, и с полостью 3 нагнетани  посредством байпаса 26, снабженного разгрузочным клапаном 28 В корпусе 1 выполнены каналы 6 охлаждегч . Валы 9 и 10 ротонов ступенл 4 св заны шестерн ми 11 и 12 Рассогласование в производительност хступеней на пере- ходных режимах компенсируетс  при помощи клапанов 27 и 28, что позвол ет повысить экономичность. Отсутствие масла в насосе позвол ет снизить энергозатраты на его отделение. 4 з. п. ф-лы. 2 ил П

Simulationsgestütztes Verfahren zur Steuerung bzw. Regelung von Druckluftstationen

Die Erfindung betrifft ein Verfahren zur Steuerung bzw. Regelung einer Druckluftstation, die wenigstens eine Mehrzahl von untereinander vernetzten Kompressoren, insbesondere unterschiedlicher technischer Spezifikationen, und optional weitere Geräte der Drucklufttechnik umfasst, welches insbesondere in Steuerzyklen sowohl Schaltstrategien über eine elektronische Anlagensteuerung zur Beeinflussung einer Menge eines für einen oder mehrere Benutzer der Druckluftstation jederzeit zur Verfügung stehenden Druckfluids in der Druckluftstation veranlassen kann, als auch die für einen oder mehrere Benutzer der Druckluftstation jederzeit zur Verfügung stehende Menge an Druckfluid auf zukünftige Betriebsbedingungen der Druckluftstation adaptiv auf die Entnahmemenge an Druckfluid aus der Druckluftstation einzustellen vermag, wobei vor Veranlassung einer Schaltstrategie verschiedene Schaltstrategien in einem Voraussimulationsverfahren unter Zugrundelegung eines Modells der Druckluftstation überprüft werden ...

Verdichtervorrichtung und thermodynamisches System, das eine derartige Verdichtervorrichtung umfasst

Verdichtervorrichtung (6), die einen ersten Verdichter (7) und einen zweiten Verdichter (8) umfasst, die parallel montiert sind, wobei jeder Verdichter einen dichten Behälter (9) umfasst, der einen Niederdruckabschnitt (11) aufweist, der einen Motor (12) und eine Ölwanne (13) enthält, wobei eine Ölstandsausgleichsleitung (24) die Ölwannen (13) des ersten und zweiten Verdichters (7, 8) in Kommunikation versetzt, und Steuermittel (29), die ausgebildet sind, um das Ingangsetzen und den Stopp des ersten und zweiten Verdichters (7, 8) zu befehlen. Der erste Verdichter (7) umfasst erste Detektionsmittel (30), die mit den Steuermitteln (29) gekoppelt sind und ausgebildet, um in der Ölwanne (13) des ersten Verdichters (7) einen Ölstand festzustellen. Die Steuermittel (29) sind ausgebildet, um einen Stopp des zweiten Verdichters (8) zu befehlen, wenn der von den ersten Detektionsmitteln (30) festgestellt Ölstand unter einen ersten vorbestimmten Wert fällt.

Compressing apparatus with variable capacity range and capacity control

The apparatus (31) includes first (39) and second (41) rotary compressing devices arranged to operate in a parallel mode at a mode where either the first or the second compressing device is effective. The latter mode can be selected by closing a valve (81) at the inlet to compressing device (39). A relatively high driving frequency is applied to the rotary compressing device (39 or 41) in the single operation mode when the compressing capacity of the apparatus (31) in the single mode is the same as that in the parallel mode to enhance the EER of the compressing apparatus. By use of single operation mode the lower end of the compressing capacity range of the compressing apparatus may be extended as compared with the range for a single compressing device apparatus capable of giving the same maximum compressing capacity. …… ...

ROTARY COMPRESSOR

Rotary compressor

A compressor for a refrigeration cycle in air conditioning apparatus, includes first and second compressor sections (16, 18), and a motor for driving the compressor sections. The first and second compressor sections have first and second cylinders (26, 42), respectively, and each cylinder has a suction port (36 or 50). First and second suction pipes (52a, 52b) are connected to the suction ports, and first and second change over valves (60a, 60b) are provided at the first and second pipes, respectively. The first cylinder has a release port (38) for releasing a part of the gas being compressed in the first cylinder. A release pipe (58) provided with a third changed over valve (62) is connected to the release port. The operations of the first to third valves are controlled by a control circuit (64) so that the capacity of the compressor varies in a plurality of steps in accordance with the loads applied thereto as determined by room temperature sensed at (66). …… ...

COMPRESSORS

... 1417559 Rotary positive-displacement compressors HYDROVANE COMPRESSOR CO Ltd and LOUGHBOROUGH UNIVERSITY OF TECHNOLOGY 5 Feb 1974 [6 Nov 1972] 51157/72 Heading F1F A rotary compressor comprising main and auxiliary sections 11,15 and 10, 14 delivering to a common outlet 22, 23 is unloaded, when the delivery pressure exceeds a predetermined value, by operation of valves 24, 25, 27, the valves 24, 25 restricting the inlets 18, 19 to the auxiliary and main sections and the exhaust valve 27 causing the delivery of the main section 11, 15 to be bypassed to a low pressure region such as the inlet 18 to the auxiliary section. The inlet valves 24, 25 are operated by servo devices (not shown) responsive to the delivery pressure in the outlet 22, 23, the main inlet valve 25 closing at the same, or higher, or preferably lower pressure than the auxiliary inlet valve 24. Operation of the exhaust valve 27 is either in direct response to the delivery pressure or in response to the increased suction in ...

Pump

Scroll compressors

Method of pumping in a system of vacuum pumps and system of vacuum pumps

Method of pumping and pumping system (SP, SPP) comprising: a lubricated-vanes main vacuum pump (3) with a gas inlet orifice (2) connected to a vacuum chamber (1) and a gas outlet orifice (4) opening into a pipe (5) before opening into the gas outlet (8) of the pumping system (SP, SPP), a non-return valve (6) positioned in the pipe (5) between the gas outlet orifice (4) and the gas outlet (8), and a lubricated-vanes auxiliary vacuum pump (7) connected in parallel with the non-return valve (6). The lubricated-vanes main vacuum pump (3) is set into operation in order to pump the gasses contained in the vacuum chamber (1) through the gas outlet orifice (4); simultaneously, a lubricated-vanes auxiliary vacuum pump (7) is set in operation and continues to be in operation for all of the time that the lubricated-vanes main vacuum pump (3) is pumping the gasses contained in the vacuum chamber (1) and/or for all of the time that the lubricated-vanes main vacuum pump (3) is maintaining a defined pressure ...

METHOD OF PUMPING IN A SYSTEM OF VACUUM PUMPS AND SYSTEM OF VACUUM PUMPS

Abstract The present invention relates to a pumping method in a pumping system (SP, SPP) comprising: a main lubricated rotary vane vacuum pump (3) with a gas inlet port (2) connected to a vacuum chamber (1) and a gas outlet 5 port (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (SP, SPP), a non-return valve (6) positioned in the conduit (5) between the gas outlet port (4) and the gas outlet (8), and an auxiliary lubricated rotary vane vacuum pump (7) connected in parallel to the non-return valve (6). According to this method, the main lubricated rotary vane vacuum 10 pump (3) is activated in order to pump the gases contained in the vacuum chamber (1) through the gas outlet port (4), simultaneously the auxiliary lubricated rotary vane vacuum pump (7) is activated and continues to operate all the while that the main lubricated rotary vane vacuum pump (3) pumps the gases contained in the vacuum chamber (1) and/or all the while that the main 15 ...

METHOD FOR CONTROLLING A COMPRESSOR SYSTEM

A method for controlling a compressor system comprising a plurality of compressors, wherein the compressor system is intended to maintain a predefined excess pressure in a pressurized fluid system, wherein decisions are met at fixed or variable intervals as to switching operations for adapting the system to current conditions, wherein - in a pre-selecting step, switching alternatives are excluded from the plurality of combinatorially available switching alternatives, - in a main selecting step, remaining switching alternatives are weighed against one another while referring to one or more optimization criterion (criteria) and optimum switching alternatives are selected from among the given criteria, and - in a control step, the selected switching alternative is output for implementation in the compressor system.

Compressed gas supply unit

The present invention provides a compressed gas supply unit. An object of the present invention is to allow for prompt reaction to frequent load changes to enable stable adjustment of the discharge pressure of compressed gas and reduction of power consumption, in the compressed gas supply unit with a multiple compressor system that uses scroll compressors. The compressed gas supply unit has scroll compressors. Gas discharged from the scroll compressors travels through a main supply passage and is reserved in a reservoir tank, after which the gas is supplied to a gas recipient from a supply passage. The scroll compressors include inverter devices that allow for independent modulation of the speeds of respective drive motors. The controller includes a speed range setting unit that sets an upper speed limit and a lower speed limit of the scroll compressors, a speed sum calculating unit that calculates a sum of speeds of the scroll compressors based on a load of the compressed gas supply unit ...

Hermetic rotary compressor

Rotary compressor

진공 펌프 시스템

챔버, 특히 로크 챔버 또는 프로세스 챔버를 비우기 위한 진공 펌프 시스템은 바람직하게는 스크루 펌프로 구성되는 메인 진공 펌프(12)를 포함한다. 메인 진공 펌프(12)의 유입구(30)는 비워질 챔버와 연결된다. 메인 진공 펌프(12)의 이송 방향에서 보았을 때, 특히 루츠(Roots) 펌프인 보조 진공 펌프(24)가 배치된다. 메인 진공 펌프(12)의 유출구 영역(32)은 한편으로는 메인 유출구(34)와 연결되고, 다른 한편으로는 보조 진공 펌프의 유입구(38)와 연결된다. 또한, 보조 진공 펌프의 유출구(40)는 메인 유출구(34)와 연결된다. The vacuum pump system for evacuating the chamber, in particular the lock chamber or the process chamber, preferably comprises a main vacuum pump 12 which is constituted by a screw pump. The inlet 30 of the main vacuum pump 12 is connected to the chamber to be evacuated. When viewed in the direction of conveyance of the main vacuum pump 12, an auxiliary vacuum pump 24, in particular a Roots pump, is disposed. The outlet region 32 of the main vacuum pump 12 is connected on the one hand to the main outlet 34 and on the other hand to the inlet 38 of the auxiliary vacuum pump. The outlet (40) of the auxiliary vacuum pump is also connected to the main outlet (34).

METHOD FOR CONTROLLING A COMPRESSED AIR INSTALLATION COMPRISING SEVERAL COMPRESSORS, CONTROL BOX APPLIED THEREBY AND COMPRESSED AIR INSTALLATION APPLYING THIS METHOD

COMPRESSOR TO REDUCE OPERATING VIBRATION

PURPOSE: A compressor is provided to improve oil discharge efficiency in the lower side of a shell by reducing the height of a motor. CONSTITUTION: A compressor(100) comprises a shell(110), a plurality of compression devices(130), a valve, a first pipe, and a second pipe. The shell forms an enclosure. The compression devices comprise cylinders porviding a space to compress refrigerant and a rolling piston to compress refrigerant. The valve controls refrigerant flow in or out of the compression devices. The refrigerant drawn into the compression devices flows through the first pipe. Refrigerant, which is compressed by one of the compression devices and delivered to another one of the compression devices, flows through the second pipe. The first and second pipes are connected to one of the cylinders of the compression devices. COPYRIGHT KIPO 2012 ...

MULTI-CYLINDER ROTARY COMPRESSOR, DISCHARGING THE REFRIGERANT ON THE HIGH PRESSURE CHAMBER SIDE OF A FIRST CYLINDER TO THE LOW PRESSURE CHAMBER SIDE OF A SECOND CYLINDER BY OPERATING A POWER SAVE MECHANISM TO COMMUNICATE THE HIGH PRESSURE CHAMBER SIDE OF THE FIRST CYLINDER WITH THE LOW PRESSURE CHAMBER SIDE OF THE SECOND CYLINDER

PURPOSE: A multi-cylinder rotary compressor is provided to efficiently discharge the refrigerant on the high pressure chamber side of a first cylinder to the low pressure chamber side of a second cylinder by communicating the high pressure chamber side of the first cylinder with the low pressure chamber side of the second cylinder in the vicinity of a phase angle of a first roller opening a discharge valve. CONSTITUTION: A multi-cylinder rotary compressor includes a power save mechanism communicating the high pressure chamber side of a first cylinder(38) with the low pressure chamber side of a second cylinder(40) in a predetermined phase. The multi-cylinder rotary compressor includes a control unit for controlling the operation of the power save mechanism and the rotational speed of a drive element. The control unit operates the power save mechanism during the small capacity operation of a refrigerant circuit to communicate the high pressure chamber side of the first cylinder with the low ...

PERFECTIONING IN PROCESS OF REGULATION OF THE DOUBLE ROTATING COMPRESSORS AND DEVICES FOR ITS EXECUTION

mÉtodo para controle de uma instalaÇço de ar comprimido e um controlador e instalaÇço de ar comprimido para emprego desse mÉtodo

Vacuum pump system

A vacuum pump system has a main vacuum pump (10) for evacuating a chamber (14). An auxiliary pump (24) is connected with an outlet (16) of the main vacuum pump (24). Further, a control means (32, 34) is provided for activating the auxiliary pump (34) within a defined range of pressure prevailing at the outlet (16). The control means (32, 34) comprises only mechanical components.

Multi-stage energy-saving vacuum unit based on roots-type main vacuum pump

WORKING METHOD FOR SENDING PERSLUCHTINSTALLATIE WITH SEVERAL COMPRESSORS, WHEEL BOX THEREBY APPLIES APPLIED, AND PERSLUCHTINSTALLATIE THAT THIS WORKING METHOD.

VACUUM PUMPING SYSTEM

The present invention relates to a vacuum pumping system (18) for evacuating gas from a plurality of chambers (12, 14, 16) at different pressures. The pumping system comprises a plurality of compound vacuum pumps (20, 22), wherein each compound pump comprises a plurality of pumping mechanisms (24,26,28) connected in series between a pump inlet (30) and a pump exhaust (32) and an interstage port (34, 36) between pumping mechanisms in the series. The system is configured such that gas evacuated from one of said chambers is pumped through the interstage ports of at least two of said compound pumps.

METHOD AND DEVICE FOR PUMPING OF A PROCESS CHAMBER

The present invention relates to a pumping device intended to be connected to a process chamber (2) comprising a dry primary vacuum pump (3), an auxiliary pumping means (4) mounted so that said pumping means bypasses a check valve (13) on the vacuum pump (3), a first valve device (5) connected to a means for purging (11) the dry primary vacuum pump (3) and intended to be connected to a gas supply (14), a second valve device (6) mounted so that said second valve device bypasses a check valve (13) upstream from the auxiliary pumping means (4), and a control means configured to control the first and second valve devices (5, 6) on the basis of an operating status of the process chamber (2) in such a way that the first valve device (5) is at least partially closed and the second valve device (6) is open when the process chamber (2) is operating at ultimate vacuum. The present invention also relates to a method for pumping of a process chamber (2) by means of such a pumping device (1).

SUCTION HEADER ARRANGEMENT FOR OIL MANAGEMENT IN MULTIPLE-COMPRESSOR SYSTEMS

A refrigeration system with two or more compressors configured to compress a flow of refrigerant with oil entrained therein. A suction flow piping arrangement is configured to supply a flow of refrigerant and oil to the two or more compressors. The suction flow piping arrangement has a suction header configured to carry the flow of refrigerant and oil, and a primary compressor supply conduit connected to the suction header. The primary compressor supply conduit supplies refrigerant and oil to a first compressor of the two or more compressors. A secondary compressor supply conduit branches off from the suction header. The secondary compressor supply conduit supplies refrigerant to a second compressor of the two or more compressors. The primary compressor supply conduit is configured to supply more oil to the first compressor than the secondary compressor supply conduit supplies to the second compressor.

SCROLL COMPRESSORS WITH DIFFERENT VOLUME INDEXES AND SYSTEMS AND METHODS FOR SAME

A plurality of scroll compressors with different fixed volume indexes are connected in fluid parallel circuit and configured to selectively operate to maximize isentropic efficiency at different condensing temperatures. Different quantities of scroll compressors of different volume indexes may be selected based upon typical climate or geographic location environmental conditions to attempt to maximize efficiency. A controller may selectively operate different combinations of the compressors of different volume indexes bases up load demands and condensing temperature conditions, which may be determined in a variety of ways.

Apparatus for the rapid evacuation of a vacuum chamber

A first vacuum pump (14) is connected to a vacuum chamber (5) by a primary intake line (13) having a first vacuum valve (4) therein. A second vacuum pump (15) is connected to the output of the first vacuum pump (14) by a connecting line (20) having a second vacuum valve (12) therein. A blowout valve (17) is connected to the connecting line (20) between the first pump (14) and the second valve (12). A secondary intake line (19) having therein a third vacuum valve (13) is connected between the vacuum chamber (5) and the intake of the second vacuum pump (15).

Suction Header Arrangement for Oil Management in Multiple-Compressor Systems

A refrigeration system with two or more compressors configured to compress a flow of refrigerant with oil entrained therein. A suction flow piping arrangement is configured to supply a flow of refrigerant and oil to the two or more compressors. The suction flow piping arrangement has a suction header configured to carry the flow of refrigerant and oil, and a primary compressor supply conduit connected to the suction header. The primary compressor supply conduit supplies refrigerant and oil to a first compressor of the two or more compressors. A secondary compressor supply conduit branches off from the suction header. The secondary compressor supply conduit supplies refrigerant to a second compressor of the two or more compressors. The primary compressor supply conduit is configured to supply more oil to the first compressor than the secondary compressor supply conduit supplies to the second compressor.

COMPRESSOR

A compression device includes a plurality of compressors in a shell. Each compressor includes a rolling piston that rotates within a cylinder to compress refrigerant. At least one valve allows refrigerant to be simultaneously or successively compressed by the compressors. A first pipe transfers refrigerant into one of the compressors, and a second pipe transfers refrigerant compressed in one of the compressors to another one of the compressors when the refrigerant is successively compressed by the compression mechanisms. The first and second pipes are coupled to the cylinder of one of the compressors.

Capacity modulated scroll machine

A scroll-type machine is disclosed which is particularly well suited for use as a compressor in refrigeration and air conditioning systems and incorporates a unique arrangement for modulating the capacity thereof. The capacity of the scroll-type machine is modulated by reducing the orbital radius of one of the scroll members to thereby form a leakage path across the flank surfaces of the wraps. Both types of scroll separation may be accomplished in a time pulsed manner to thereby enable a full range of modulation with the duration of the loading and unloading periods being selected to maximize the efficiency of the overall system. A motor control arrangement is also disclosed which may be used with either of the modulation methods mentioned above to increase the efficiency of the motor during periods of reduced load. Additionally, either of the modulation arrangements mentioned above may be combined with a delayed suction form of capacity modulation with or without the motor control feature ...

Multistage rotary compressor and refrigeration circuit system

A refrigeration circuit system (153) comprising a multistage rotary compressor (10) formed of an electric element (14) in a hermetic shell case (12), and first and second rotary compression elements (32), (34) being driven by said electric element (14), wherein a refrigerant which is compressed by said first rotary compression element (32) is compressed by said second rotary compression element (34), a gas cooler (154) into which the refrigerant discharged from said second rotary compression element (34) flows, a pressure reducing device connected to an outlet side of said gas cooler (154), and an evaporator (157) connected to an outlet side of said pressure reducing device, wherein the refrigerant discharged from said evaporator (157) is compressed by said first rotary compression element (32), said refrigeration circuit system further comprising: a bypath circuit (158) for supplying the refrigerant discharged from said first rotary compression element (32) to said evaporator (157); a ...

Multicylinder rotary compressor

Two stage primary dry pump

СПОСОБ СОЗДАНИЯ ЗАДАННОГО УРОВНЯ ВАКУУМА В СИСТЕМЕ ДОЕНИЯ И КОМПЬЮТЕРНЫЕ ПРОГРАММНЫЕ ПРОДУКТЫ

FIELD: agriculture. SUBSTANCE: invention relates to agriculture. The proposed method to create a given level of vacuum in the milking system, which contains at least two vacuum pumps with variable speed, is the following. According to the method the first vacuum pump is used with variable speed for a given level of vacuum in the milking system, the need in the level of vacuum in the milking system is controlled, and when the need for the level of vacuum in the milking system is such that the speed of the first vacuum pump with variable speed reaches the first speed limit then the second vacuum pump is run with variable speed, and the first and second vacuum pumps are used with variable speed in parallel to set a given level of vacuum. The invention also relates to computer - readable storage media for the implementation of this method and management of dairy vacuum system of this method. EFFECT: invention maintains a constant level of vacuum in the system without fluctuations causing discomfort in dairy animals, reducing energy consumption, ease of maintenance and servicing of vacuum pumps. 18 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 461 186 (13) C2 (51) МПК A01J 5/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009140398/13, 02.04.2008 (24) Дата начала отсчета срока действия патента: 02.04.2008 (73) Патентообладатель(и): ДЕЛАВАЛЬ ХОЛДИНГ АБ (SE) R U Приоритет(ы): (30) Конвенционный приоритет: 03.04.2007 SE 0700828-7 (72) Автор(ы): ИДЕНШЕ Хенрик (SE) (43) Дата публикации заявки: 10.05.2011 Бюл. № 13 2 4 6 1 1 8 6 (45) Опубликовано: 20.09.2012 Бюл. № 26 (56) Список документов, цитированных в отчете о поиске: SU 1607749 А1, 23.11.1990. SU 1558349 А1, 23.04.1990. BY 4708 С1, 30.09.2002. SU 1606054 А1, 15.11.1990. US 2005188708 А, 01.09.2005. 2 4 6 1 1 8 6 R U (86) Заявка PCT: SE 2008/000242 (02.04.2008) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.11.2009 (87) ...

СИСТЕМА ОТКАЧКИ ДЛЯ СОЗДАНИЯ ВАКУУМА И СПОСОБ ОТКАЧКИ ПРИ ПОМОЩИ ЭТОЙ СИСТЕМЫ ОТКАЧКИ

Группа изобретений относится к вакуумной технике. Система (SP) откачки для создания вакуума содержит главный вакуумный насос, который является кулачковым насосом (3), содержащим всасывающий вход (2) газов, соединенный с вакуумной камерой (1), и выход (4) для выдува газов, сообщающийся с каналом (5) удаления газов в направлении выхода (8) для выпуска газов из системы откачки. Система откачки дополнительно содержит обратный клапан (6), расположенный между выходом (4) и выходом (8), и вспомогательный вакуумный насос (7), установленный параллельно с клапаном (6). Насос (7) выполнен с возможностью пуска в то же время, что и насос (3), и с возможностью производить откачку в течение всего периода откачки насосом (3) газов, содержащихся в камере (1), и в течение всего периода поддержания насосом (3) заданного давления в камере (1). Группа изобретений направлена на обеспечение получения более высокого вакуума, чем вакуум, получаемый в вакуумной камере при использовании только одного кулачкового насоса. 2 н. и 20 з.п. ф-лы, 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 674 297 C2 (51) МПК F04C 25/02 (2006.01) F04C 28/02 (2006.01) F04C 18/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04C 25/02 (2018.05); F04C 28/02 (2018.05); F04C 18/123 (2018.05) (21)(22) Заявка: 2017114342, 02.10.2014 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): АТЕЛЬЕ БУШ СА (CH) 06.12.2018 (56) Список документов, цитированных в отчете о поиске: US 2003/068233 A1, 10.04.2003. WO (43) Дата публикации заявки: 07.11.2018 Бюл. № 31 (45) Опубликовано: 06.12.2018 Бюл. № 34 2014/012896 A2, 23.01.2014. JP 2007100562 A, 19.04.2007. EP 1243795 A1, 25.09.2002. DE 8816875 U1, 11.04.1991. DE 3842886 A1, 06.07.1989. SU 1756637 A1, 23.08.1992. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.05.2017 2 6 7 4 2 9 7 Приоритет(ы): (22) Дата подачи заявки: 02.10.2014 R U 02.10.2014 (72) Автор(ы): ...

СПОСОБ ОТКАЧИВАНИЯ В СИСТЕМЕ ВАКУУМНЫХ НАСОСОВ И СИСТЕМА ВАКУУМНЫХ НАСОСОВ

FIELD: motors and pumps.SUBSTANCE: group of inventions refers to an evacuation method for vacuum pump systems and a vacuum pump system. Method of evacuation in the vacuum pump system comprises main lubricated rotary vane vacuum pump (3) with gas inlet nozzle (2) connected to vacuum chamber (1), and gas outlet nozzle (4) leading to pipe (5) before the gas enters gas outlet (8) of the vacuum pump system, check valve (6) located in pipe (5) between nozzle (4) and outlet (8), and auxiliary lubricated rotary vane vacuum pump (7) connected parallel to valve (6). Pump (3) is activated to evacuate the gases contained in chamber (1) through nozzle (4). Simultaneously, pump (7) is activated and continuous operation of pump (7) is ensured until pump (3) evacuates the gases contained in chamber (1) and/or all the time that pump (3) maintains a certain pressure in chamber (1).EFFECT: group of inventions is aimed at reducing the electrical energy necessary to create a vacuum in the chamber, to reduce the temperature of the exhaust gas.18 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 666 720 C2 (51) МПК F04C 25/02 (2006.01) F04C 28/02 (2006.01) F04C 18/344 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04C 25/02 (2018.02); F04C 28/02 (2018.02); F04C 2/344 (2018.02) (21)(22) Заявка: 2017102492, 27.06.2014 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): АТЕЛЬЕ БУШ СА (CH) 11.09.2018 (56) Список документов, цитированных в отчете о поиске: DE 8816875 U1, 11.04.1991. SU (43) Дата публикации заявки: 27.07.2018 Бюл. № 21 (45) Опубликовано: 11.09.2018 Бюл. № 26 1170190 A1, 30.07.1985. US 2003/068233 A1, 10.04.2003. DE 3842886 A1, 06.07.1989. EP 1243795 A1, 25.09.2002. SU 1700283 A1, 23.12.1991. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.01.2017 2 6 6 6 7 2 0 Приоритет(ы): (22) Дата подачи заявки: 27.06.2014 R U 27.06.2014 (72) Автор(ы): МЮЛЛЕР Дидье (CH), ...

НАСОСНАЯ СИСТЕМА ДЛЯ СОЗДАНИЯ ВАКУУМА И СПОСОБ ОТКАЧИВАНИЯ С ИСПОЛЬЗОВАНИЕМ ДАННОЙ НАСОСНОЙ СИСТЕМЫ

Группа изобретений относится к области вакуумной техники. Насосная система (SP), предназначенная для создания вакуума, включает основной безмасляный винтовой насос (3), в котором имеется заборный впуск (2) для газа, соединенный с вакуумной камерой (1), и выпуск (4) для выдува газа, выходящий в канал (5) отведения газа в направлении выпуска (8) для выхода газа из насосной системы. Система (SP) включает невозвратный клапан (6), расположенный между выпусками (4, 8), и вспомогательный вакуумный насос (7), подсоединенный параллельно с клапаном (6). Насос (3) приводится в действие с целью откачивания газа, находящегося в камере (1), и выдува этого газа через выпуск (4), одновременно приводится в действие насос (7). Насос (7) продолжает работать все время, в течение которого насос (3) откачивает газ из камеры (1), и/или все время, в течение которого насос (3) поддерживает определенное давление в камере (1). Группа изобретений направлена на обеспечение возможности получения высокого вакуума и большой ...

Kältekreisanordnung mit zwei gleichzeitig angetriebenen Verdichtern

VARIABLE-DISPLACEMENT ROTARY FLUID COMPRESSOR AND AIR CONDITIONING SYSTEM USING THE COMPRESSOR

Mehrstufige und energiesparende Vakuumvorrichtung mit Wälzkolbenvakuumpumpe in der ersten Stufe

Eine mehrstufige und energiesparende Vakuumvorrichtung mit einer Wälzkolbenvakuumpumpe in der ersten Stufe, umfassendein saugseitiges luftantreibendes Absperrventil (13), mit dem ein nichtkondensierendes Gas empfangen wird, das von einem Kondensator eines Kraftwerks abgesogen wird;eine erste Wälzkolbenvakuumpumpe (1), die mit einem saugseitigen luftantreibenden Absperrventil verbunden ist, um das vom saugseitigen luftantreibenden Absperrventil ausgestoßene Gas zu empfangen und zu komprimieren;eine zweite Vakuumpumpe (2), die seriell mit der ersten Wälzkolbenvakuumpumpe verbunden ist, um das Gas von der ersten Wälzkolbenvakuumpumpe (1) weiter zu komprimieren, wobei sämtliche zweite Vakuumpumpen seriell verbunden sind, wenn mehr als eine zweite Vakuumpumpe (2) vorhanden ist.

Pump configured to mitigate the effect of any rotor and stator clash and its method of manufacture

A pump and method of manufacturing the pump, where the pump comprises a rotor 20 rotatably mounted within a stator 10; the stator being formed of a material that is softer than a material of the rotor and where at least a portion of the surface of the stator is treated to harden the surface and the rotor and stator are configured such that clashing will preferentially occur between the rotor and the at least a portion of the stator surface that has been treated. Preferably the lowest clearance gap between the rotor and stator is provided between the rotor and treated portion. Preferably the lowest axial clearance is both directions is provided the rotor and stator portion where the surface of the stator has been treated. The softer material may comprise Aluminium and the treatment may involve anodising. Preferably the pump is a roots pump.

A multiple stage vacuum pump and pump configuring method

Multiple stage vacuum pump comprising multiple vacuum pumping stages arranged in series between a gas inlet and an exhaust and comprising gas flow paths between the stages; a bypass gas flow path for conducting a flow of gas diverted from an output of an intermediate one of the stages to the exhaust; wherein at least one of the multiple vacuum stages has a capacity that is smaller than an adjacent upstream stage; and the pump further comprises means for inserting a gas flow diverter into the gas flow path between the adjacent stages, the gas flow diverter being configured to divert the gas flow output from the upstream stage of the adjacent stages to the bypass gas flow path, such that flow is impeded from entry to any subsequent stage or stages. A method of configuring a multiple stage low power vacuum pump to operate at a higher temperature is also claimed.

Method to operate a vacuum system

A vacuum system comprises a first 16 and a second vacuum pump 22 connectable to a vacuum chamber 16 in series to maintain a set pressure. The first pump is a variable speed drive pump, VSD. The performance of the first pump is controlled to be equal to or higher than the performance of the second pump while maintaining the set pressure in the chamber. The second pump may be a VSD, with performance reduced while maintaining the set pressure. The first and/or the second pump may comprise more than one pump preferably connected in parallel. The performance of the first pump is preferably maximized and the second minimized while maintaining the set pressure. Preferably, if the pressure in the vacuum chamber is above the set pressure, the first pump is operated at maximum performance and the second operated in dependence on the pressure. If the pressure in the chamber is equal to or below the set pressure, the second pump may be operated at minimum performance and the first operated in dependence ...

Vacuum pumping

In order to prevent excessive motor loading or system overheating due to the accumulation of particulate or dust, from SACVD type CVD processes, in the running clearances of the vacuum pump a vacuum pumping arrangement is provided having a plurality of vacuum pumping stages and comprising a first pump inlet through which process fluid from the vacuum chamber can enter the pump and pass through each of the pumping sections towards a pump outlet, and a second pump inlet through which process fluid can enter the pump and pass through only one or more pumping stages downstream of the most upstream pumping stage, wherein the apparatus configured to conveying process fluid from the vacuum chamber to the first pump inlet for pumping during the second processing step and conveying process fluid from the vacuum chamber to the second pump inlet for pumping during the first processing step.

Compression device, and a thermodynamic system comprising such a compression device

This compression device comprises first and second compressors mounted in parallel, a suction line intended to be connected to an outlet of an evaporator, first and second suction conduits arranged for putting the suction line respectively in communication with the admission orifices of the first and second compressors, and an oil level equalization conduit connecting the oil pans of the first and second compressors. The compression device further comprises an oil separator mounted on the suction line or on the second suction conduit, and an oil return conduit arranged for connecting an oil outflow orifice of the oil separator to the oil pan of the first compressor.

Compressor unit including gear rotor and compressor system using the same

A compressor unit having a gear rotor, and a compressor system using the same are provided. The compressor system includes a compressor unit having a triple trochoidal rotor, which includes a first rotor, a second rotor, a third rotor, a casing, second and first suction ports, and second and first discharge ports; and a driving unit that rotates the three rotors such that external working fluid is sucked into the suction port and the working fluid sucked into the suction port is discharged to the discharge port in a state of being compressed. The compressor unit may be constructed as a triple trochoidal rotor such that working fluid can be compressed in a two-stage compression manner to enable the working fluid to be supplied at high pressure and provide a high-speed, high-pressure compression capability.

SCROLL COMPRESSORS WITH DIFFERENT VOLUME INDEXES AND SYSTEMS AND METHODS FOR SAME

A plurality of scroll compressors with different fixed volume indexes are connected in fluid parallel circuit and configured to selectively operate to maximize isentropic efficiency at different condensing temperatures. Different quantities of scroll compressors of different volume indexes may be selected based upon typical climate or geographic location environmental conditions to attempt to maximize efficiency. A controller may selectively operate different combinations of the compressors of different volume indexes bases up load demands and condensing temperature conditions, which may be determined in a variety of ways. 1. A compressor arrangement , comprising:a plurality of refrigerant compressors connected in parallel circuit, each refrigerant compressor having a volume index, the plurality of refrigerant compressors including at least a first compressor and a second compressor, wherein each of the first compressor and the second compressor include a single inlet, single outlet, and a single flowpath extending between the single inlet and the single outlet, and wherein each of the first compressor and the second compressor includes a housing and a motor contained within said housing, the first compressor having a different volume index than each second compressor, wherein the volume index of the first compressor and the second compressor is fixed and non-variable.2. The compressor arrangement of claim 1 , wherein the first and second compressors are scroll compressors.3. The compressor arrangement of claim 2 , wherein in relative relation between the first and second compressors claim 2 , each first compressor has a higher isentropic efficiency at a high temperature range for saturated condensing temperature claim 2 , and wherein each second compressor has a higher isentropic efficiency at a low temperature range for saturated condensing temperature claim 2 , the high temperature range being higher than the low temperature range.4. The compressor arrangement of ...

A METHOD FOR ANALYZING, MONITORING, OPTIMIZING AND/OR COMPARING ENERGY EFFICIENCY IN A MULTIPLE COMPRESSOR SYSTEM

The present invention provides a method for analyzing, monitoring, optimizing and/or comparing energy used for producing a unit of mass or volume of compressed gas (Specific Energy Consumption) in relation to a common output flow in a multiple compressor system, said method comprising: —collecting measured data of common output flow and energy/power use and calculating the specific energy consumption in the multiple compressor system, —identifying which data points of measured specific energy consumption that affiliate to a certain compressor or compressor combination in the multiple compressor system and/or operating mode(s) of the multiple compressor system; and —plotting the data points of measured specific energy consumption that affiliate to a certain compressor or compressor combination in the multiple compressor system and/or operating mode of the multiple compressor system and marking affiliation of said data points to the certain compressor or compressor combination and/or operating mode. 1. A method for analyzing , monitoring , optimizing and/or comparing energy used for producing a unit of mass or volume of compressed gas (Specific Energy Consumption) in relation to a common output flow in a multiple compressor system , said method comprising:collecting measured data of common output flow and energy/power use and calculating the specific energy consumption in the multiple compressor system,identifying which data points of measured specific energy consumption that affiliate to a certain compressor or compressor combination in the multiple compressor system and/or operating mode(s) of the multiple compressor system; andplotting the data points of measured specific energy consumption that affiliate to a certain compressor or compressor combination in the multiple compressor system and/or operating mode of the multiple compressor system and marking affiliation of said data points to the certain compressor or compressor combination and/or operating mode.2. The ...

Gas Compressor and Method for Controlling Same

The purpose of the present invention is to provide a gas compressor that can achieve reduced fluctuation of discharge pressure during compressor body number control, and a method for controlling the gas compressor. This gas compressor includes a plurality of compressor units each having a compressor body, a motor for driving the compressor body, and an inverter for controlling a rotational speed of the motor, and a control device for controlling each of the inverters, in which discharge pipes of the compressor bodies are merged with one main discharge pipe and discharge pressure of the main discharge pipe is controlled through control of pressure of the respective discharge pipes by controlling, by means of the respective inverters, driving frequencies of the compressor bodies. The control device determines whether recovery through an increase in the driving frequency of the motor of each of the compressor bodies is possible, on the basis of the pressure value and a temporal changing amount of the discharge pressure of the main discharge pipe when the driving frequency of the motor of the compressor body is being increased but has not reached an upper limit frequency, and controls an increase of the number of the compressor bodies to be operated.

Method for Controlling a Compressor Installation

A method for controlling a compressor system comprising a plurality of compressors, wherein the compressor system is intended to maintain a predefined excess pressure in a pressurized fluid system, wherein decisions are met at fixed or variable intervals as to switching operations for adapting the system to current conditions, wherein —in a pre-selecting step, switching alternatives are excluded from the plurality of combinatorially available switching alternatives, —in a main selecting step, remaining switching alternatives are weighed against one another while referring to one or more optimization criterion (criteria) and optimum switching alternatives are selected from among the given criteria, and —in a control step, the selected switching alternative is output for implementation in the compressor system. 1. A method for controlling a compressor system including a plurality of compressors , each compressor optionally having a different design or performance , the compressor system maintaining a predefined excess pressure in a pressurized fluid system despite a withdrawal of pressurized fluid from the pressurized fluid system , the method comprising the steps of:excluding one or more switching alternatives from a plurality of available switching alternatives based on current conditions of the pressurized fluid system,evaluating the plurality of switching alternatives other than the excluded switching alternatives based on an optimization criterion,selecting a switching alternative from the plurality of switching alternatives based on the evaluation, andoutputting the selected switching alternative to the compressor system,wherein selecting the switching alternative occurs at fixed or variable intervals.2. The method according to claim 1 , further comprising:increasing generation of the pressurized fluid upon reaching a switch-on pressure and reducing generation of compressed pressurized fluid upon reaching a switch-off pressure.3. A method for controlling a ...

Vacuum sewage system with monitoring system and method of use

A vacuum sewage system includes a collection station, a vacuum pump, a sewage pump, a collection tank, a control system, a valve pit, a first conduit extending from the collection station to the valve pit, a second conduit extending from the valve pit and terminating in a closed end, a valve located in the valve pit for selectively permitting sewage and waste water to flow from the valve pit toward the collection station upon activation of the valve, an electric air admission controller or a solenoid for selectively opening and closing the valve, a first sensor associated with the electronic air admission controller or the solenoid and a second sensor located adjacent the closed end of the second conduit. The system may be utilized to monitor and remedy various undesirable operating conditions in the system and to perform routines to increase operating efficiency of the system.

MULTIPLE COMPRESSOR CONFIGURATION WITH OIL-BALANCING SYSTEM

An oil balancing system for a multiple compressor system is provided. The oil balancing system includes an oil equalization line disposed between a first compressor and a second compressor. A first solenoid valve is provided in the oil equalization line. A first signal corresponds to a first oil level in the first compressor. A second signal corresponds to a second oil level in the second compressor. An oil balancing module uses the first signal and the second signal to diagnose an oil imbalance between the first compressor and the second compressor, and applies corrective action, whereby the corrective action includes sending control signals to operate at least one of the first compressor, the second compressor, or the first solenoid valve in a way that eliminates the oil imbalance. 1. An oil balancing system for a multiple compressor system , the oil balancing system comprising:a first compressor;a second compressor;an oil equalization line disposed between the first compressor and the second compressor;a first valve in the oil equalization line;an oil level detection system for generating a first signal corresponding to a first oil level in the first compressor and a second signal corresponding to a second oil level in the second compressor; andan oil balancing module that uses the first signal and the second signal to diagnose an oil imbalance between the first compressor and the second compressor, and applies corrective action, whereby the corrective action comprises sending control signals to change the operating speed of one of the first compressor and the second compressor, and operating the first valve in a way that eliminates or reduces the oil imbalance.2. The oil balancing system of claim 1 , wherein the oil balancing module further uses the first signal and the second signal to verify that the corrective action has eliminated or reduced the oil imbalance.3. The oil balancing system of claim 2 , wherein after the oil imbalance is eliminated claim 2 , the ...

Hydraulic control device

In a hydraulic control device, when it is detected that a pressure of first oil (output pressure) detected by an output pressure sensor pulsates, a transmission control unit as a TCU stops driving of a second pump or decreases a rotation number of the second pump as a first operation. Alternatively, when it is detected that the output pressure pulsates, the TCU increases the rotation number of the second pump to a rotation number (for example, maximum rotation number) that is higher than a target rotation number as a second operation.

METHOD FOR OPERATING A VACUUM PUMP SYSTEM AND VACUUM PUMP SYSTEM APPLYING SUCH METHOD

A method of operating a vacuum pump system, the method including the steps of: operating a primary vacuum pump having a variable speed motor; connecting at least two secondary vacuum pumps in parallel with said primary vacuum pump; dividing the secondary vacuum pumps in groups, each group including at least one secondary vacuum pump; and assigning a priority for each of said groups. The method further includes the steps of measuring the inlet pressure p1, comparing the measured inlet pressure p1 with a predetermined pressure value p0, and if p1 is higher than p0, starting the secondary vacuum pump at a first predetermined startup load Sif it includes a fixed speed motor, and/or starting the secondary vacuum pump at a second predetermined startup load S, if it includes a variable speed moto 115-. (canceled)17. The method according to claim 16 , wherein the method is repeats the step of comparing the measured inlet pressure with the predetermined pressure value and if claim 16 , the subsequently measured inlet pressure is higher than the predetermined pressure value claim 16 , operating the at least one secondary vacuum pump part of the group having a next highest priority assigned to it claim 16 , until the pressure measured at the inlet reaches the value of the predetermined pressure value or until all the secondary vacuum pumps are running.18. The method according to claim 16 , wherein operating at least one secondary vacuum pump part of the group with the highest priority is done by starting one secondary vacuum pump at a time claim 16 , and if the measured inlet pressure is higher than the predetermined pressure value claim 16 , the vacuum pump system starts another secondary vacuum pump part of said same group with highest priority or claim 16 , if all the secondary vacuum pumps of said group with the highest priority are running claim 16 , the method further comprises the step of starting a secondary vacuum pump claim 16 , part of the group with the second ...

Method for controlling a rotary screw compressor

The invention relates to a method for controlling a rotary screw compressor, having at least a first and a second air-end, wherein both air-ends are driven separately from one another and speed controlled. According to the invention, the following steps are carried out: detection of a volume flow taken at the outlet of the second air-end; adjustment of the rotational speed of both air-ends, when the removed volume flow fluctuates in a range between a maximum value and a minimum value; opening of a pressure-relief valve, if the volume flow falls below the minimum value; and reduction of the rotational speed of at least the first air-end to a predetermined idling speed (V1L) to reduce the volumetric flow delivered by the first to the second air-end.

VACUUM PUMPING

A vacuum pumping apparatus may include: a common pumping line having a plurality of pumping line inlets and a pumping line outlet, each pumping line inlet being configured to couple with an outlet of an associated plurality of vacuum processing chambers; at least one primary vacuum pump in fluid communication with the pumping line outlet to pump gas from each vacuum processing chamber; and control logic operable to control operation of the primary vacuum pump in response to an indication of an operating state of the plurality of vacuum processing chambers. In this way, the performance of the primary vacuum pump can be adjusted to match the load provided by the processing chambers and when there is an excess capacity, the performance of the primary vacuum pumps can be reduced, which can lead to significant energy savings and reduce wear on the pump. 1. A vacuum pumping apparatus comprising:a common pumping line having a plurality of pumping line inlets and a pumping line outlet, each pumping line inlet being configured to couple with an outlet of an associated plurality of vacuum processing chambers;at least one primary vacuum pump in fluid communication with the pumping line outlet to pump gas from each vacuum processing chamber; andcontrol logic operable to control operation of the at least one primary vacuum pump in response to an indication of an operating state of the plurality of vacuum processing chambers.2. The apparatus of claim 1 , wherein the control logic is operable to vary an operating speed of the at least one primary vacuum pump in response to the indication.3. The apparatus of claim 1 , wherein the control logic is operable to vary the operating speed to match a gas pumping rate of the at least one primary vacuum pump to an indicated gas flow rate from the plurality of vacuum processing chambers.4. The apparatus of claim 1 , wherein the at least one primary vacuum pump comprises a plurality of primary vacuum pumps and wherein the control logic is ...

HEAT PUMP APPARATUS

A heat pump apparatus, including: a two-cylinder compressor including: an electric motor; two compression units to be driven by the electric motor, the two-cylinder compressor being structured to switch between two operation modes including single operation in which one of the compression units is brought into a non-compression state, and parallel operation in which both the compression units are brought into a compression state; an inverter drive control device supplying drive power to the electric motor of the two-cylinder compressor; an operation mode detecting-determining unit determining a current operation mode based on an electric signal acquired from the inverter drive control device; and a capacity control device determining a rotating frequency of the electric motor so that a temperature of a target object is brought close to a set value, to thereby control the inverter drive control device based on a result of determination of the operation mode detecting-determining unit. 1. A heat pump apparatus , comprising: an electric motor, and', 'two compression units to be driven by the electric motor,', 'the two-cylinder compressor being structured to switch between two operation modes including a single operation in which one of the two compression units is brought into a non-compression state, and a parallel operation in which both the two compression units are brought into a compression state in accordance with operation conditions,, 'a two-cylinder compressor including'}a heat-rejecting-side heat exchanger;a pressure reducing mechanism; 'the two-cylinder compressor, the heat-rejecting-side heat exchanger, the pressure reducing mechanism, and the heat-removing-side heat exchanger being connected to one another;', 'a heat-removing-side heat exchanger,'}an inverter drive control device configured to supply drive power to the electric motor of the two-cylinder compressor;an operation mode detecting-determining unit configured to determine either one of the two ...

System And Method For Providing Stable Fluid Flow

An embodiment of a system with a minute measure of pulsatility in a flow of a fluid is described that comprises a first pump configured to flow the fluid to a junction at a first flow rate that comprises a measure of pulsatility; and a second pump configured to flow a portion of the fluid from the junction at a second flow rate that is less than the first flow rate to produce a flow of the fluid at a third flow rate from the junction with a minute measure of pulsatility. 1. (canceled)2. A system , comprising:a flow cell,the flow cell being configured to receive a sample fluid from a sample fluid source in fluid communication with the flow cell, and the flow cell being configured to receive a carrier fluid from a carrier fluid source in fluid communication with the flow cell,the carrier fluid having a carrier fluid flowrate,a first output pump,the first output pump being in fluid communication with a first junction, the first junction being in further fluid communication with the flow cell,the first output pump being in fluid communication with a second junction, the second junction being in fluid communication with the first junction,the first output pump being configured to flow a fluid from the first junction to the second junction along a first output pathway,a second output pump being in fluid communication with the first junction and in fluid communication with a second junction such that the first output pump, the first junction, the second output pump, and the second junction define a fluidic circuit,the second output pump being configured to flow fluid between the first junction and the second junction along a second fluid pathway, andthe first output pump and the second output pump being operable so as to effect an output flow of fluid from the second junction having an output flowrate greater than the carrier fluid flowrate,the output flowrate giving rise to a pressure differential that encourages sample fluid from the sample source into the flow cell.3. ...

Method and Apparatus for Adjusting Operating Parameters of a Vacuum Pump Arrangement

A method for adjusting operating parameters of a vacuum pump arrangement includes determining characteristics of a gas flowing through the vacuum pump arrangement; and setting operating parameters of the vacuum pump arrangement based on the determined characteristics of the first gas. A controller can be configured to perform the method for adjusting the operating parameters of the vacuum pump arrangement in accordance with the characteristics of the gas. 1. A method of adjusting operating parameters of a vacuum pump arrangement , comprising:determining characteristics of a first gas flowing through the vacuum pump arrangement; andsetting operating parameters of the vacuum pump arrangement based on the determined characteristics of the first gas.2. The method of claim 1 , wherein the determining characteristics of the first gas comprises a step for the vacuum pump arrangement to receive a signal indicative of the characteristics.3. The method of claim 2 , wherein the signal is provided from a process tool upstream of the vacuum pump arrangement.4. The method of claim 2 , wherein the signal is generated by a sensor in a foreline connecting a process tool to the vacuum pump arrangement downstream thereof.5. The method of claim 4 , wherein the senor is configured to make direct or indirect measurements of thermal conductivity of the first gas.6. The method of claim 1 , wherein the determining characteristics of the first gas comprises:monitoring a property of the vacuum pump arrangement, as the vacuum pump arrangement pumps the first gas therethrough; anddetermining the characteristics of the first gas based on the monitored property.7. The method of claim 6 , wherein the property is a power consumption pattern.8. The method of claim 1 , wherein the vacuum pump arrangement comprises a booster pump and a backing pump serially connected to a process chamber in a manner that the booster pump is downstream of the process chamber and upstream of the backing pump.9. The ...

VACUUM PUMP SYSTEM

A vacuum pump system comprising a plurality of vacuum pumps which are connected to one another in parallel and are each connected on an inlet side to a chamber, having an outlet line which is connected on the outlet side of the vacuum pumps, and an intermediate line which connects the inlet side of at least one vacuum pump to the outlet line, wherein all the vacuum pumps are connected in parallel during a pumping-out period and at least one of the vacuum pumps is connected in parallel with the other vacuum pumps as a backing pump during an idle period. 1. A vacuum pump system having a plurality of vacuum pumps which are connected in parallel with each other and are each connected on an inlet side with a chamber , having an outlet line which is connected with the outlet side of said vacuum pumps , and an intermediate line connecting the inlet side of at least one vacuum pump with said outlet line ,whereinduring a pumping-out period all vacuum pumps are connected in parallel, and during an idle period the inlet side of at least one of said vacuum pumps is connected with the outlet side of the remaining vacuum pumps as a backing pump.2. The vacuum pump system according to claim 1 , wherein during the idle period the vacuum pump whose inlet side is connected with the outlet side of the remaining vacuum pumps is connected in series with the other vacuum pumps.3. The vacuum pump system according to claim 1 , wherein the outlet side of the vacuum pump is connected with the outlet line via a check valve.4. The vacuum pump system according to claim 1 , wherein in front of each of the vacuum pumps a valve is arranged claim 1 , as well as in particular another valve is arranged in the intermediate line for controlling a parallel or series connection of the individual vacuum pumps with each other.5. The vacuum pump system according to claim 1 , wherein the at least one of the vacuum pumps whose inlet side is connected with the outlet side of the remaining vacuum pumps in the ...

VACUUM PUMP STRUCTURE

A vacuum pump structure includes a motor, two pump bodies, and a grip. The two pump bodies are connected to the motor and driven by the motor, respectively. Each pump body has a pump chamber with a connection port for connecting a suction pipe. The grip has two ends respectively connected to the two pump bodies for carrying the vacuum pump structure. A communication pipe is disposed inside the grip. The communication pipe is in communication with the pump chambers of the two pump bodies. The two pump bodies jointly perform two working modes at the same time to improve work efficiency. 1. A vacuum pump structure , comprising:a motor;two pump bodies, connected to the motor and driven by the motor, the pump bodies each having a pump chamber, each of the pump chambers being provided with a connection port for connecting a suction pipe;a grip, having two ends respectively connected to the two pump bodies; a communication pipe being disposed inside the grip, the communication pipe being in communication with the pump chambers of the two pump bodies.2. The vacuum pump structure as claimed in claim 1 , wherein the connection port of at least one of the pump bodies is provided with a pressure gauge for measuring the degree of vacuum.3. The vacuum pump structure as claimed in claim 1 , wherein the connection port of each of the pump bodies is provided with a check valve claim 1 , and the connection port is provided with a pressure gauge in front of the check valve for measuring the degree of vacuum. The present invention relates to a vacuum pump, and more particularly to a vacuum pump structure having two pump bodies.Common electrical equipment, such as air conditioners, refrigerators, etc., circulate the refrigerant in the piping system to achieve a refrigeration effect through the process of evaporation and condensation. In order to avoid damage to the system caused by air remaining in the piping system during the operation of the refrigerant, it is necessary to first ...

System Including High-Side and Low-Side Compressors

A heat pump system may be operable to circulate fluid between first and second heat exchangers in a first direction in a heating mode and in a second direction in a cooling mode. The heat pump system may include a suction conduit, a low-side compressor and a high-side compressor. The low-side and high-side compressors may both be in fluid communication with the suction conduit.

Rotational pump and fuel vapor leakage detection device having the same

A pump casing has two external communication holes communicating with an outside. A partition member partitioning an interior of the pump casing into a first space and a second space. The first space communicates with the two external communication holes. The partition member have two internal communication holes communicating the first space with the second space. A first rotor member is rotatably accommodated in the first space. A second rotor member is rotatably accommodated in the second space. A torque switching unit is configured to switch between transmission of a running torque selectively to the first rotor member and transmission of the running torque to both the first rotor member and the second rotor member.

FLUID VALVE

A fluid valve is described to help reduce oil sump pressures of a variable speed compressor and a fixed speed compressor working in parallel in a HVAC system. The fluid valve can be a ball valve. Openings of a variable flow through structure of the ball can be configured to elongate along an equator the ball. When the ball rotates along a rotation axis, a size of a variable fluid path formed between the openings can be varied, resulting in a variable pressure drop across the ball. In operation, when the variable speed compressor is operated at different operation speeds, the ball can be rotated to different positions relative to the rotation axis, which may help reduce the pressure differential between the sumps of the variable speed compressor and the fixed speed compressor. 1. A ball valve , comprising:a flow passage; anda ball disposed in the flow passage, wherein the ball includes a variable flow through structure, the variable flow through structure includes a first opening on a surface of the ball, the first opening includes a first end and a second end along an equator of the ball, surface contours connecting the first end and the second end diverge apart along the equator.2. The ball valve of claim 1 , wherein the variable flow through structure of the ball includes a second opening on the surface of the ball claim 1 , the second opening includes a first end and a second end along the equator of the ball claim 1 , surface contours connecting the first end and the second end diverge apart along the equator.3. The ball valve of claim 1 , wherein the first end of the first opening has a shorter arc length than the second end of the second opening.4. The ball valve of claim 2 , wherein the first end of the second opening has a shorter arc length than the second end of the first opening.5. The ball valve of claim 2 , wherein the first end of the second opening is closer to the second end of the first opening than to the first end of the first opening along the ...

METHOD AND DEVICE FOR PUMPING OF A PROCESS CHAMBER

The present invention relates to a pumping device intended to be connected to a process chamber () comprising a dry primary vacuum pump (), an auxiliary pumping means () mounted so that said pumping means bypasses a check valve () on the vacuum pump (), a first valve device () connected to a means for purging () the dry primary vacuum pump () and intended to be connected to a gas supply (), a second valve device () mounted so that said second valve device bypasses a check valve () upstream from the auxiliary pumping means (), and a control means configured to control the first and second valve devices () on the basis of an operating status of the process chamber () in such a way that the first valve device () is at least partially closed and the second valve device () is open when the process chamber () is operating at ultimate vacuum. The present invention also relates to a method for pumping of a process chamber () by means of such a pumping device (). 2. A pumping device according to claim 1 , characterized in that the pumping device comprises a second valve-comprising device mounted on a line bypassing the anti-return valve upstream of the ejector and a controlling means configured to control the first and second valve-comprising devices depending on an operating state of the processing chamber.3. A pumping device according to claim 1 , characterized in that the first valve-comprising device comprises a three-way solenoid valve.4. A pumping device according to claim 1 , characterized in that the ejector is a multistage ejector.5. A pumping device according to claim 1 , characterized in that the first valve-comprising device comprises at least one solenoid valve controllable by the controlling means.6. A pumping device according to claim 5 , in which the dry primary vacuum pump comprises a plurality of pumping stages claim 5 , the purging means comprises a plurality of branches for distributing the purging gas to each of the pumping stages claim 5 , and the first ...

COMPRESSOR SYSTEM AND METHOD OF CONTROLLING THE SAME

Provided is a compressor system including a first compressor having: an inlet at which a first inlet guide vane is provided; and an outlet pressure sensor unit configured to measure a pressure at an outlet of the first compressor; a second compressor including an inlet at which a second inlet guide vane is provided; a first control unit configured to adjust a degree of opening of the first inlet guide vane based on the pressure measured by the outlet pressure sensor unit, configured to set the outlet pressure of the first compressor as a set pressure, and configured to generate a first signal including information about the degree of opening of the first inlet guide vane; and a second control unit configured to receive the first signal, and configured to adjust a degree of opening of the second inlet guide vane to control an amount of fluid flowing into the second compressor. 1. A compressor system comprising: an inlet at which a first inlet guide vane is provided; and', 'an outlet pressure sensor unit configured to measure a pressure at an outlet of the first compressor;, 'a first compressor comprisinga second compressor comprising an inlet at which a second inlet guide vane is provided;a first control unit configured to adjust a degree of opening of the first inlet guide vane based on the pressure measured by the outlet pressure sensor unit, configured to set the outlet pressure of the first compressor as a set pressure, and configured to generate a first signal including information about the degree of opening of the first inlet guide vane; anda second control unit configured to receive the first signal, and configured to adjust a degree of opening of the second inlet guide vane to control an amount of fluid flowing into the second compressor.2. The compressor system of claim 1 , wherein the first control unit and the second control unit control the first inlet guide vane and the second inlet guide vane respectively so that the degree of opening of the first ...

Automated Cleanliness Diagnostic for Mass Spectrometer

A mass spectrometer or ion mobility spectrometer is disclosed comprising means for detecting a blockage in an inlet orifice arranged between an ion source and a vacuum chamber. The blockage is detected as a result of a reduction in pressure within the vacuum chamber. This change in pressure is detected indirectly by monitoring the amount of power that a vacuum pump is using, the amount of current that a vacuum pump is drawing, the temperature of a vacuum pump or a region in proximity to the vacuum pump, or the flow rate of gas out of a vacuum pump.

Compressor Capacity Modulation System For Multiple Compressors

A system includes a plurality of compressors, an evaporator, an expansion device, and a system controller. The compressors may be linked in parallel. The system controller may: determine a saturated evaporator temperature, a saturated condensing temperature, and a target capacity demand; determine an estimated system capacity and an estimated power consumption for each compressor operating configuration; compare the estimated system capacity with the target capacity demand and an error tolerance value; select an optimum operating mode based on the comparisons and based on the estimated power consumption; and command activation and deactivation of the plurality of compressors to achieve the selected optimum operating mode. The optimum operating mode may be selected after the normal system logic achieves a steady state and may be selected from a group having the estimated system capacity within the error tolerance of the target capacity demand and a lowest associated power consumption value. 1. A system comprising:a plurality of compressors linked in parallel by a common discharge line and a common suction line;an evaporator;a condenser; anda system controller that determines a saturated evaporator temperature of the evaporator, a saturated condensing temperature of the condenser, a target capacity demand for the plurality of compressors, and an estimated system capacity and an estimated power consumption for each operating configuration of the plurality of compressors based on the saturated evaporator temperature and the saturated condensing temperature;wherein the system controller compares the estimated system capacity for each operating configuration with the target capacity demand and an error tolerance value and selects an optimum operating mode of the plurality of compressors based on the comparisons and the estimated power consumption for each operating configuration, the optimum operating mode being selected from a group of operating configurations having the ...

VOLUMETRIC COMPRESSOR

A two-stage rotary compressor for gas, in particular air. The compressor comprises a bottom plate and a head enclosing between them two compression stages. The compressor is characterized in that an interconnection device is arranged between the two compression stages, said device being suited to establish a communication “in series” or “in parallel”, to be selected by the manufacturer, between said two compression stages. 110. A two-stage rotary compressor () for gas , in particular air;{'b': 10', '20', '30, 'the rotary compressor () comprising a bottom plate () and a head (), which enclose, between them, two compression stages ((I), (II));'}{'b': 100', '100', '100', '100', '100, 'the rotary compressor being characterised in that between said two compression stages ((I), (II)) an interconnection device (; *; **) is arranged, which is suited to establish a communication “in series” (*) or “in parallel” (**), to be selected by the manufacturer, between said two compression stages ((I), (II)).'}2101001001007080. A two-stage rotary compressor () claim 1 , according to claim 1 , characterised in that said interconnection device (; *; **) comprises a first dividing plate () and a second dividing plate () claim 1 , which are packed one on the other.3107080. A two-stage rotary compressor () claim 2 , according to claim 2 , characterised in that said first dividing plate () and said second dividing plate () are identical.41070807080707070708080808070807080. A two-stage rotary compressor () claim 2 , according to claim 2 , characterised in that each dividing plate ( claim 2 , ) comprises a respective main body (A claim 2 , A) with four respective slots (D claim 2 , E claim 2 , F claim 2 , G; D claim 2 , E claim 2 , F claim 2 , G) claim 2 , and one respective opening (H; H) which is associated with a respective longitudinal recess (L; L).510708095. A two-stage rotary compressor () claim 4 , according to claim 4 , characterised in that the two longitudinal recesses (L; L) face ...

Multistage compression system

A multistage compression system uses refrigerant and oil. The multistage compression system includes a low-stage compressor that compresses the refrigerant, a high-stage compressor that further compresses the refrigerant compressed by the low-stage compressor, refrigerant pipes that-introduce the refrigerant compressed and discharged by the low-stage compressor into a suction part of the high-stage compressor, a pressure reducing element disposed between the refrigerant pipes, an accumulator disposed between the refrigerant pipes at a downstream side of the pressure reducing element and at an upstream side of the high-stage compressor, and an oil discharge pipe. The oil discharge pipe discharges the oil in the low-stage compressor. The oil discharge pipe connects the low-stage compressor and a portion of the refrigerant pipes. The portion of the refrigerant pipes is on a downstream side of the pressure reducing element and an upstream side of the accumulator.

OPERATION OF A WELLHEAD COMPRESSOR

A method of operating a wellhead compressor includes selecting a plurality of operating points of the wellhead compressor, measuring the tubing pressure at the plurality of operating points of the wellhead compressor and determining an efficiency achieved by the wellhead compressor when operating at each of the operating points based on at least the measured tubing pressure at each of the operating points. A production curve is generated of well pressure as a function of flow rate from a combination of measured data and predicted data. An operating point of the wellhead compressor is selected from the production curve based on at least the efficiency of the wellhead compressor at the selected operating point and the wellhead compressor is operated at the selected operating point. The steps of the method are repeated after operating the wellhead compressor at the selected operating point for a predetermined period of time. 1. A method of operating a wellhead compressor , the compressor being configured to pump fluid from a well at a tubing pressure , the method comprising:selecting a plurality of operating points of the wellhead compressor, wherein the flow rate of fluid pumped by the wellhead compressor varies between the plurality of operating points;measuring the tubing pressure at the plurality of operating points of the wellhead compressor;determining an efficiency achieved by the wellhead compressor when operating at each of the operating points based on at least the measured tubing pressure at each of the operating points;generating a production curve of well pressure as a function of flow rate from a combination of measured data and predicted data,selecting an operating point of the wellhead compressor from the production curve based on at least the efficiency of the wellhead compressor at the selected operating point; andoperating the wellhead compressor at the selected operating point;the method further comprising repeating the steps of the method after ...

Oil-injected multi-stage compressor system and procedure for controlling such a compressor system

An oil-injected multi-stage compressor system that comprises at least a low-pressure stage compressor element (2) with an inlet (4a) and an outlet (5a) and a high-pressure stage compressor element (3) with an inlet (4b) and an outlet (5b), whereby the outlet (5a) of the low-pressure stage compressor element (2) is connected to the inlet (4b) of the high-pressure stage compressor element (3) through a pipeline (6), characterized in that the compressor elements (2, 3) are provided with their own drive in the form of an electric motor (2a, 3a), whereby the compressor elements (2, 3) are connected to the electric motor (2a, 3a) either directly or through a gearbox and that an intercooler (9) is provided in the aforementioned pipeline (6) between the low-pressure stage compressor element (2) and the high-pressure stage compressor element (3).

System and method for a simplified high pressure monobore multiport pod missile

A modular multiport pod missile includes a plurality of pipe sections securable together to form a conduit for transporting a fluid in a generally horizontal direction of travel, and at least one pod secured between two of the pipe sections forming the conduit. Each pod has a plurality of input ports extending radially outwardly at an angle from a perimeter of the pod. Each of the input ports is configured for connection to a high-pressure line for delivering a high-pressure fluid from a pump to the conduit. The input ports are angled such that, when connected to a high-pressure line, high-pressure fluid flowing through the input ports merges with the fluid in the conduit generally in the same direction of travel as the fluid in the conduit.

Method for controlling a rotary screw compressor

The invention relates to a method for controlling a rotary screw compressor, having at least a first and a second air-end, wherein both air-ends are driven separately from one another and speed controlled. According to the invention, the following steps are carried out: detection of a volume flow taken at the outlet of the second air-end; adjustment of the rotational speed of both air-ends, when the removed volume flow fluctuates in a range between a maximum value and a minimum value; opening of a pressure-relief valve, if the volume flow falls below the minimum value; and reduction of the rotational speed of at least the first air-end to a predetermined idling speed (V1 L ) to reduce the volumetric flow delivered by the first to the second air-end.

OIL EQUALIZATION CONFIGURATION FOR MULTIPLE COMPRESSOR SYSTEMS CONTAINING THREE OR MORE COMPRESSORS

A refrigeration system with at least three compressors connected in a circuit. Each compressor has a housing with an oil sump. The oil sump is adapted to contain oil that defines an oil level. A supply line supplies refrigerant and entrained oil to each of the at least three compressors. The oil sump of each compressor has at least one oil port. Each oil port is disposed at an elevation that is equal to or minimally higher than the level of oil to promote equalization of oil levels in each compressor. There are a plurality of separate conduits which are not directly connected, but connected through the oil sumps of separate compressors. At least one compressor includes an oil sump extension having connections for the separate conduits. Each oil port is connected to the separate conduits or an oil sump extension. Each separate conduit connects a pair of compressors. 1. A refrigeration system comprising:at least three compressors connected in a fluid circuit, each compressor having a compressor housing having an oil sump in a lower portion thereof, the oil sump adapted to contain oil that defines an oil level when in a fully filled oil state;a supply line which supplies oil to each of the at least three compressors in any operating mode of the at least three compressors,wherein the oil sump of each compressor of the at least three compressors has at least one oil port in the lower portion, each oil port disposed at an elevation that is equal to or higher than the oil level of oil to thereby promote equalization of oil levels among the oil sumps;a plurality of separate conduits, wherein the separate conduits are not directly connected to other conduits, but are fluidically connected through the oil sumps of separate compressors of the at least three compressors;wherein one of the at least three compressors includes an oil sump extension having connections for at least one of the plurality of separate conduits, the oil sump extension configured to permit oil flow ...

Vacuum-generating pumping system and pumping method using this pumping system

The present invention relates to a pumping system to generate a vacuum (SP), comprising a main vacuum pump which is a dry screw pump ( 3 ) having a gas suction inlet ( 2 ) connected to a vacuum chamber ( 1 ) and a gas discharge outlet ( 4 ) leading into a gas evacuation conduit ( 5 ) in the direction of a gas exhaust outlet ( 8 ) outside the pumping system. The pumping system comprises a non-return valve ( 6 ) positioned between the gas discharge outlet ( 4 ) and the gas exhaust outlet ( 8 ), and an auxiliary vacuum pump ( 7 ) connected in parallel to the non-return valve. In a pumping method by means of this pumping system (SP), the main vacuum pump ( 3 ) is started up in order to pump the gases contained in the vacuum chamber ( 1 ) and to discharge these gases through its gas discharge outlet ( 4 ), simultaneously to which the auxiliary vacuum pump ( 7 ) is started up. Moreover the auxiliary vacuum pump ( 7 ) continues to pump all the while that the main vacuum pump ( 3 ) pumps the gases contained in the vacuum chamber ( 1 ) and/or all the while that the main vacuum pump ( 3 ) maintains a defined pressure in the vacuum chamber ( 1 ).

Method of Pumping in a System of Vacuum Pumps and System of Vacuum Pumps

A pumping method in a pumping system comprises: a main vacuum pump with a gas inlet port connected to a vacuum chamber and a gas outlet port leading into a conduit before coming out into the gas outlet of the pumping system, a non-return valve positioned in the conduit between the gas outlet port and the gas outlet, and an auxiliary vacuum pump connected in parallel to the non-return valve. The main vacuum pump is activated in order to pump the gases contained in the vacuum chamber through the gas outlet port, simultaneously the auxiliary vacuum pump is activated and continues to operate all the while that the main vacuum pump pumps the gases contained in the vacuum chamber and/or all the while that the main vacuum pump maintains a defined pressure in the vacuum chamber. Also included is a pumping system. 118-. (canceled)19. A system of vacuum pumps comprising:a main vacuum pump with a gas inlet port connected to a vacuum chamber and a gas outlet port leading into a conduit before coming out into a gas outlet of the system of vacuum pumps, said main vacuum pump including a motor,a non-return valve positioned in said conduit between said gas outlet port and the said gas outlet of the system of vacuum pumps, andan auxiliary vacuum pump connected in parallel to said non-return valve,wherein said main vacuum pump is activated in order to pump gases contained in the vacuum chamber through said gas outlet port and simultaneously activating said auxiliary vacuum pump; andwherein said auxiliary vacuum pump continues to operate all the while that said main vacuum pump pumps gases contained in the vacuum chamber and/or all the while that said main vacuum pump maintains a defined pressure in the vacuum chamber.20. The system of vacuum pumps according to{'claim-ref': {'@idref': 'CLM-00019', 'claim 19'}, ', wherein an outlet of said auxiliary vacuum pump rejoins said gas outlet of the system of vacuum pumps after said non-return valve.'}21. The system of vacuum pumps according ...

VACUUM PUMP SYSTEM AND METHOD FOR OPERATING A VACUUM PUMP SYSTEM

A vacuum pump system comprising a main vacuum pump that is connected to a chamber that is to be evacuated. An auxiliary pump is connected to an outlet of the main vacuum pump. Furthermore, a sealing gas supply device is connected to the main vacuum pump. The sealing gas supply device is switched on and off with the aid of a control device as a function of a predetermined control variable. Additionally, a method for controlling the vacuum pump system. 1. A vacuum pump system comprisinga main vacuum pump adapted to be connected to a chamber to be evacuated,an auxiliary pump connected to an inlet of said main vacuum pump,a sealing gas supply device, anda control device connected to said sealing gas supply device for switching said sealing gas supply device off and on as a function of a predetermined control variable.2. The vacuum pump system according to claim 1 , wherein the control device is connected to the auxiliary vacuum pump for switching said auxiliary vacuum pump off and on as a function of a different or the same control variable.3. The vacuum pump system according to claim 1 , wherein the predetermined control variable for the sealing gas device and/or the auxiliary vacuum pump is the entering or terminating of a standby mode.4. The vacuum pump system according to claim 1 , wherein the predetermined control variable for the sealing gas device and/or the auxiliary vacuum pump is the falling below a pressure value at the inlet of the main vacuum pump claim 1 , which pressure value is in particular determined with the aid of a pressure sensor claim 1 , wherein the pressure limit value preferably is 1 mbar.5. The vacuum pump system according to claim 1 , wherein the predetermined control variable for the sealing gas device and/or the auxiliary vacuum pump is the falling below a pressure value at the outlet of the main vacuum pump claim 1 , which pressure value is in particular determined with the aid of a pressure sensor claim 1 , wherein the pressure limit ...

具有油平衡系统的多压缩机配置

提供了一种用于多压缩机系统的油平衡系统。油平衡系统包括布置在第一压缩机与第二压缩机之间的油均衡管线。在油均衡管线中设置有第一电磁阀。第一信号对应于第一压缩机中的第一油位。第二信号对应于第二压缩机中的第二油位。油平衡模块使用第一信号和第二信号来判断第一压缩机与第二压缩机之间的油不平衡，并且施加校正动作，由此校正动作包括发送控制信号以操作第一压缩机、第二压缩机或第一电磁阀中的至少一者，使得能够消除油不平衡。

Multiple cylinder rotary compressor

The compressor comprises a rotatable driving shaft having eccentric portions. Superposed cylinder blocks have cylinders there in concentric to the driving shaft. Rotors are attached to and driven by the eccentric portions of the driving shaft to rotate along the inner circumferential surface of the cylinders, adjacent ones of the eccentric portions of the driving shaft being rotatively offset by 180 degrees relative to each other. Vanes are slidably received in respective cylinder blocks and pressed against an outer surface of the rotors by a coil spring to divide each of the cylinders into a suction side and a compression side. The suction side of each of the cylinders have a suction passage with the suction passage of one cylinder superposed to the suction passage of the other cylinder.

선회베인 압축기의 용량 가변장치

본 발명은 선회베인 압축기에 관한 것으로, 보다 상세하게는 실린더의 내부에서 원형베인이 선회운동을 하여 상기 원형베인의 내.외측에 압축실이 형성되는 선회베인 압축기에서, 상기 실린더의 내.외측 압축실을 밸브의 간단한 작동에 의해서 선택적으로 압축 또는 연통되게 하여 상기 선회베인 압축기의 용량을 가변시킬 수 있도록 한 선회베인 압축기의 용량 가변장치에 관한 것으로서, 상기 실린더의 상면에 밸브몸체가 형성되고, 상기 밸브몸체의 일측에 실린더의 내측 압축실에 대한 압축 및 연통이 이루어지게 하는 제1 작동부가 형성되며, 밸브몸체의 타측에는 실린더의 외측 압축실에 대한 압축 및 연통이 이루어지게 하는 제2 작동부가 형성된 스마트 조절밸브를 구비함으로써 압축기 사용의 경제성을 확보할 수 있을 뿐만 아니라 기존에 압축기를 온/오프 동작시킴에 따른 전력 낭비와 관련 장치 및 부품의 수명단축을 방지할 수 있어 기기의 품질 및 신뢰성 향상을 기할 수 있는 효과를 갖게 된다. 스마트 조절밸브, 밸브몸체, 제1 작동부, 제2 작동부, 액츄에이터

用于控制旋转式螺杆压缩机的方法

本发明涉及用于控制旋转式螺杆压缩机的方法，该压缩机至少具有第一空气端和第二空气端，其中，两个空气端被彼此独立地驱动并被控制速度。根据本发明，执行以下步骤：检测在第二空气端的出口处获得的容积流量；当移动的容积流量在介于最大值与最小值之间的范围内波动时，调节两个空气端的旋转速度；如果容积流量低于最小值，则打开减压阀；将至少第一空气端的旋转速度减小至预定空转速度(V1 L )，以减小从第一空气端输送至第二空气端的容积流量。本发明还涉及具有旋转式螺杆压缩机的压缩装置，其中，该压缩机至少包括第一空气端和第二空气端，其中，两个空气端被彼此独立地驱动并被控制速度，以及，提供配置成执行前述方法的控制单元。

Vacuum pump system and method for operating a vacuum pump system

本发明涉及包括真空泵(10)的真空泵系统，该真空泵具体为螺杆泵的形式。所述系统用于排空腔室(16)。当达到腔室(16)中的期望的设定压强时，可以以待机模式来操作所述真空泵系统。为此，出口导管(22)经由旁路导管(24)连接到入口导管(30)。在待机模式中，所述进口阀(18)被关闭而旁路阀(26)被打开，使得回路中的介质可以由真空泵(10)来输送。结果是，基本上以操作温度来维持所述真空泵。

A kind of method, apparatus and unit, air-conditioning system of control compression machine-cut cylinder

本发明公开一种控制压缩机切缸的方法、装置及机组、空调系统，该方法包括：确定压缩机是否需要切缸；如果是，则根据系统压差调整当前运行频率，以使得调整后的运行频率和系统压差均满足压缩机的切缸条件；控制压缩机切缸。此时，系统压差和运行频率已经稳定，不会再对压缩机维持单缸或双缸运行状态产生干扰，保障了压缩机所在机组的能效，提高了用户的使用体验。

Two-stage boost refrigeration cycle

In a two-stage compression refrigeration cycle device, a low-pressure side compression mechanism and a high-pressure side compression mechanism are intermittently operated to control such that the temperature of air blown into a freezer approaches a target temperature. Under the control, the high-pressure side compression mechanism is first stopped, and then the low-pressure side compression mechanism is stopped. Further, when a reference time has elapsed after driving the high-pressure side compression mechanism, then the low-pressure side compression mechanism is driven. The refrigeration cycle device can reduce a high-pressure side pressure difference upon driving the high-pressure side compression mechanism, and can also reduce a low-pressure side pressure difference upon driving the low-pressure side compression mechanism, thereby protecting both compression mechanisms.

Two-stage pressure boosting type refrigeration cycle device

一种两级增压型制冷循环装置构造为：当控制低级压缩机构(12a)和高级压缩机构(11a)使得低级压缩机构(12a)和高级压缩机构(11a)间歇地运行，以使得被吹送到制冷储存单元中的空气的温度接近目标温度(Tset)时，低级压缩机构(12a)在高压侧压缩机构(11a)停止后停止。并且，在驱动高级压缩机构(11a)之后已经过去参考等待时间时，低级压缩机构(12a)被驱动。上述构造可以在驱动高级压缩机构(11a)时减小高级侧压力差(PHd)，并且在驱动低级压缩机构(12a)时减小低级侧压力差(PLd)。从而同时保护两个压缩机构(11a，12a)。

Dry vacuum pump

在排气室(13)与润滑室(12)之间具有：对区划排气室(13)的工作缸(7)和第一轴(5)之间进行密封的第二密封件(28)、对区划润滑室(12)的侧罩(9)和第一轴(5)之间进行密封的第一密封件(27)。另外，在第二密封件(28)和第一密封件(27)之间设有供给密封气体的气体导入空间(29)。第二密封件(28)及第一密封件(27)分别具有基部和从基部向第一轴(5)侧延伸的一对圆环状的唇(31、32、33、34)。一对唇(31、32或33、34)以相互的间隔随着从基部朝向第一轴(5)侧而逐渐扩大的方式延伸，并且各自前端部能够与第一轴(5)弹性接触。

Vacuum pump unit

본 발명은 1 Pa 정도의 한계압력을 얻을 수 있는 건식진공펌프유닛에 관한 것이다. 상기 진공펌프유닛은 외압측에 배치된 메인펌프(15) 및 진공측에 배치된 부스터펌프(16)를 포함한다. 상기 부스터펌프(16) 및 메인펌프(15)는 일렬로 결합된다. 상기 부스터펌프(16)는 상기 메인펌프(15)보다 높은 펌핑 속도를 가진다. 각각의 메인펌프(15) 및 부스터펌프(16)는 한 쌍의 펌프회전자(52a, 52b), 유입구와 유출구를 구비한 케이싱(50) 및 상기 한 쌍의 펌프회전자와 함께 회전가능한 한 쌍의 자석회전자(54, 54)를 포함한다. The present invention relates to a dry vacuum pump unit capable of obtaining a limit pressure of about 1 Pa. The vacuum pump unit includes a main pump 15 disposed on the external pressure side and a booster pump 16 disposed on the vacuum side. The booster pump 16 and the main pump 15 are coupled in a row. The booster pump 16 has a higher pumping speed than the main pump 15. Each main pump 15 and booster pump 16 has a pair of pump rotors 52a, 52b, a casing 50 having an inlet and an outlet and a pair rotatable with the pair of pump rotors. Magnet rotors 54, 54.

Pumping system for generating a vacuum and method for pumping by means of this pumping system

진공을 발생시키기 위한 펌핑 시스템(SP)은, 진공 챔버(1)에 연결된 가스 흡입측(2)과 펌핑 시스템으로부터 가스를 배출하기 위한 가스 배기구(8)로 가스를 배출하는 가스 배출 관로(5)로 이어지는 가스 배출측(4)을 가진 베인 펌프인 메인 진공 펌프(3)를 포함한다. 상기 펌핑 시스템은, 가스 배출측(4)과 가스 배기구(8) 사이에 배치된 역류 방지 밸브(non-return valve)(6), 및 역류 방지 밸브에 병렬로 연결된 보조 진공 펌프(7)를 포함한다. 상기 메인 진공 펌프(3)는 진공 챔버(1) 내에 담긴 가스들을 펌핑하기 위해 시동되어 이 가스들을 가스 배출측(4)을 통해 배출하며, 동시에 보조 진공 펌프(7)가 시동되어, 메인 진공 펌프(3)가 진공 챔버(1) 내의 가스를 펌핑하는 전체 시간 동안 및/또는 메인 진공 펌프(3)가 진공 챔버(1) 내에 규정된 압력을 유지하는 전체 시간 동안, 계속 펌핑한다. The pumping system SP for generating a vacuum includes a gas suction side 2 connected to the vacuum chamber 1 and a gas exhaust pipe 5 for discharging gas to a gas exhaust port 8 for discharging gas from the pumping system. It comprises a main vacuum pump (3) which is a vane pump with a gas outlet side (4) leading to The pumping system comprises a non-return valve (6) disposed between the gas outlet side (4) and the gas outlet (8), and an auxiliary vacuum pump (7) connected in parallel to the non-return valve. do. The main vacuum pump 3 is started to pump the gases contained in the vacuum chamber 1 and discharges these gases through the gas discharge side 4 , and at the same time the auxiliary vacuum pump 7 is started, so that the main vacuum pump Continue pumping for the entire time that (3) pumps the gas in the vacuum chamber 1 and/or the entire time the main vacuum pump 3 maintains the prescribed pressure in the vacuum chamber 1 .

Method and device for pumping of a process chamber

本发明涉及一种旨在连接加工室(2)的泵浦设备，它包括干式主真空泵(3)、安装成被该真空泵(3)上的止回阀(13)绕过的辅助泵浦装置(14)、连接到用于清洗该干式主真空泵(13)的装置(11)上并且旨在连接气源(14)的第一阀装置(5)、安装成被辅助泵浦装置(4)上游的止回阀(13)绕过的第二阀装置(6)以及控制装置，该控制装置构造成基于加工室(2)的工作状态控制该第一和第二阀装置(5，6)，以便当加工室(2)处于极限真空工作状态时使第一阀装置(5)至少部分地关闭并使第二阀装置(6)打开。本发明还涉及用于通过这种泵浦设备(1)泵浦加工室(2)的方法。

Vacuum pump system for evacuating a chamber, and method for controlling a vacuum pump system

챔버(10)를 진공 배기시키기 위한 진공 펌프 시스템은 상기 챔버(10)와 연결된 메인 펌프 시스템(12, 14)을 포함한다. 보조 펌프 시스템(20)은 상기 메인 펌프 시스템(12, 14)과 연결되고, 상기 보조 펌프 시스템(10)은 이젝터 펌프를 포함한다. 그런 보조 펌프를 제공함으로써, 특히 진공 펌프 시스템이 한도 압력 범위 내에서 동작될 때 효율성 증가를 달성하는 것이 가능하다. 본 발명의 방법을 사용하여, 메인 펌프 시스템(12, 14)의 적어도 하나의 펌프의 회전 속도는 메인 펌프 시스템(12, 14)의 출구(16) 또는 입구(50)에서 측정된 압력에 좌우되어 제어된다. The vacuum pump system for evacuating the chamber 10 includes main pump systems 12 and 14 connected to the chamber 10. The auxiliary pump system 20 is connected to the main pump systems 12 and 14, and the auxiliary pump system 10 includes an ejector pump. By providing such an auxiliary pump, it is possible to achieve an increase in efficiency, especially when the vacuum pump system is operated within the limit pressure range. Using the method of the present invention, the rotational speed of at least one pump of the main pump system 12, 14 depends on the pressure measured at the outlet 16 or inlet 50 of the main pump system 12, 14 Controlled.

Vacuum pump unit

本发明涉及能够获得大约1Pa的极限压力的干式真空泵单元。真空泵单元包括设置在外压力侧的主泵(15)和设置在真空侧的增压泵(16)。增压泵(16)和主泵(15)串联连接。增压泵(16)具有比主泵(15)泵抽速度更高的泵抽速度。主泵(15)和增压泵(16)包括一对泵转子(52a和52b)，具有入口孔和出口孔的外壳(50)，以及一对与泵转子对一起可旋转的磁转子(54和54)。

Dual temperature independent compressor and air-conditioning system parallel

本发明公开了双温并行独立的压缩机及空调系统，压缩机包括：壳体，设于壳体内的第一气缸、第二气缸及并行气缸，分隔在第一气缸和第二气缸之间的中隔板，第一气缸的排气孔和并行气缸的排气孔均与壳体的内腔连通，中隔板上设有连通第二气缸的排气孔和壳体内腔的排气通道，中隔板还设有连通第一气缸和第二气缸的连接通道，排气通道和连接通道均设有控制其开关状态的切换装置；第一气缸、第二气缸和并行气缸的吸气孔各自独立连接有分液器，每个分液器的进气管均设置有调节进气状态的开关阀。本发明的压缩机具备多种功能，针对不同季节及环境对空调系统实现不同方式的控制，不仅可以节省成本，而且还可以显著提升空调系统的制热性能。

Multicylinder rotary compressor

The multicylinder rotary compressor has a number of cylinders housing rolling pistons which are rotated inside the cylinders by a common crankshaft. Each cylinder has a separate suction pipe. At least one of the suction pipes has a check valve which may be closed to unload the cylinder to which the suction pipe is connected. The check valve has a housing and a slider. The check valve may be closed by introduction of high-pressure refrigerant gas into the space beneath the slider to push it to the closed position when a cylinder is to be unloaded. Alternatively, the check valve is closed by a spring made of a shape-memory alloy and a heater for heating the spring above a prescribed temperature at which the alloy changes shape.

Multi-Stage Pump Having Reverse Bypass Circuit

公开了一种具有反向旁通回路的多级泵。多级泵(1)包括泵(1)头和反向液体旁通回路(290)，其中，泵头具有相对于液体通过泵(1)的流向串联布置的至少两个压缩级(270a)，反向液体旁通回路包括液体通道(295)，通过液体通道(295)在压缩级(270a)中的上游压缩级和下游压缩级之间流动的液体可以被循环返回到上游压缩级(270a)的上游。在通过液体通道(295)的压力差低于预定值的情况下，反向液体旁通回路(290)可以限制或停止液体流动通过液体通道(295)。为此，反向液体旁通回路(290)可以被配置为当液体处于过渡或分子流态时限制液体的流动，并且当液体处于粘性流态时允许液体的流动。

Variable displacement compressor operating mode determination method and apparatus, variable displacement compressor, and air conditioner

가변 용량 압축기 작동 모드 판단 방법 및 장치, 가변 용량 압축기 및 에어 컨디셔너가 개시된다. 가변 용량 압축기 작동 모드 판단 방법은, 다음이 포함된다: 압축기의 작동 모드를 전환하기 전에, 현재 압축기의 전류값을 A1으로 감지하는 단계; 상기 압축기의 작동 모드를 전환하여 기설정된 시간에 도달한 후에, 현재 압축기의 전류값을 A2로 감지하는 단계; A1 및 A2를 비교하여, A1과 A2의 비율 관계가 기설정된 조건을 만족할 때 상기 압축기의 상기 작동 모드 전환이 성공한 것으로 판단하고, 상기 A1과 A2의 비율 관계가 상기 기설정된 조건을 만족하지 않으면 상기 압축기의 작동 모드 전환이 실패한 것으로 판단하는 단계. 이러한 판단 방법에 의해, 압축기 작동 모드 전환 전의 전류값과 작동 모드 전환 후의 전류값의 비율 관계가 비교되고, 따라서 압축기의 작동 모드 전환이 성공적인지 여부를 정확하게 판단하여 압축기 사용을 최적화할 수 있다.

Compressor and Air Conditioning Unit

본 발명은 실린더 내에서 편심 회전하는 로터와, 이 로터의 외주면에 미끄럼 접촉해서 흡입 동작이 행해지는 흡입 공간과 압축 동작이 행해지는 압축 공간을 구획하는 베인으로 이루어진 압축 요소를 복수 갖는 복수 로터형 압축기로서, 하나의 압축 요소에 있어서의 압축 공간과 다른 압축 요소에 있어서의 흡입 공간을 위상 차이를 가지고 연통시키는 연통로와, 해당 연통로 내에서의 유체의 연통을 차단하는 제1 전자 밸브와, 해당 연통로에 설치되어 유체를 일방향으로만 통과시키는 역지 밸브로 이루어진 파워 세이브 기구를 구비한 압축기 및 이 압축기를 갖는 공기 조화 장치를 제공하는 것을 목적으로 한다. 파워 세이브 기구에 부가해서 소정의 압축 동작의 정지를 행함으로써 압축일을 줄이는 압축 정지 기구가 설치되어 있는 것을 특징으로 한다.

Variable speed control of multiple motors

시스템은 일정한 동력원과, 일정한 동력원에 연결된 스위치를 갖는 전기 회로를 구비한 복수의 모터를 포함한다. 시스템은 가변 속도로 복수의 모터들의 각각을 구동하기 위한 가변 속도 구동기를 추가로 포함하고, 복수의 모터들의 각각은 가변 속도 구동기와 연결된 스위치를 포함한다. 복수의 모터들의 각각은 로드 요구에 반응하여 가변 속도 및 일정한 속도 중 하나의 속도로 복수의 모터들의 각각을 구동하기 위해, 스위치를 거쳐 일정한 동력원과 가변 속도 구동기를 선택적으로 전기 접속한다. 시스템 요구가 증가하는 상황하에서 모터들의 짧은 순환 운동을 방지하기 위해, 전기 스위치에 대한 제어 알고리즘이 가변 속도 모드에서 일정한 속도 모드로의 절환 전에 모터들 중 하나를 과속시켜 히스테리시스를 제공한다. 유사하게, 히스테리시스는 제어 알고리즘 내에 포함되어 시스템 요구를 감소시키는 상황하에서 모터의 짧은 순환 운동을 방지한다. The system includes a plurality of motors having a constant power source and an electrical circuit having a switch connected to the constant power source. The system further includes a variable speed driver for driving each of the plurality of motors at variable speeds, each of the plurality of motors including a switch coupled with the variable speed driver. Each of the plurality of motors selectively electrically connects a constant power source and variable speed driver via a switch to drive each of the plurality of motors at one of a variable speed and a constant speed in response to a load request. To prevent short circulating motion of the motors under increasing system demands, a control algorithm for the electrical switch provides hysteresis by overspeeding one of the motors before switching from variable speed mode to constant speed mode. Similarly, hysteresis is incorporated into the control algorithm to prevent short circulating motion of the motor under circumstances that reduce system requirements. 모터, 가변 속도 제어, 동력원, 전기 회로, 동력, 가변 속도 모드 Motor, variable speed control, power source, electric circuit, power, variable speed mode

Multiple vacuum chamber evacuation system and multiple vacuum chamber evacuation method

복수의 챔버(10)를 배기하는 진공 배출 시스템 및 방법이 개시된다. 진공 배출 시스템은 클린룸 내에 있으며, 각각 대응하는 챔버(10)에 연결하도록 구성된 복수의 분기 공정 가스 채널(14)과, 분기 채널의 합류점으로 형성되고 각각의 챔버로부터의 공정 가스가 클린룸으로부터 클린룸 외부의 공정 채널로 흐를 수 있도록 공유 유체 연통 경로를 제공하도록 구성된 공유 공정 채널(16)을 포함한다. 또한 각각 대응하는 챔버(10)에 연결되도록 구성된 복수의 분기 펌프다운 채널(30)과, 분기 펌프다운 채널의 합류점으로부터 형성되고 진공 챔버(10) 중 적어도 하나의 진공 챔버의 펌프다운 동안 클린룸으로부터 클린룸 외부의 펌프다운 채널로 유체가 흐르기 위한 유체 연통 경로를 제공하도록 구성된 공유 펌프다운 채널(32)이 있다.

Способ управления установкой сжатого воздуха и контроллер и установка сжатого воздуха для применения такого способа

1. Способ управления установкой сжатого воздуха, которая состоит из нескольких сетей (2 и 3) сжатого воздуха, имеющих, по меньшей мере, один совместно управляемый компонент, отличающийся тем, что на основе данных измерений, по меньшей мере, одной из вышеупомянутых сетей (2 и 3) сжатого воздуха управляют, по меньшей мере, вышеупомянутым общим компонентом (11) посредством, по меньшей мере, одного контроллера (20). ! 2. Способ по п.1, отличающийся тем, что вышеупомянутый общий компонент состоит, по меньшей мере, из одного из следующих компонентов: потребителя сжатого воздуха, источника (11) сжатого воздуха, устройства обработки сжатого воздуха или клапана сжатого воздуха. ! 3. Способ по п.1 или 2, отличающийся тем, что вышеупомянутые сети (2 и 3) сжатого воздуха снабжены несколькими общими компонентами, которые управляются, по меньшей мере, одним контроллером (20). ! 4. Способ по п.1, отличающийся тем, что он является централизованным, другими словами, по меньшей мере, один контроллер определяет режим эксплуатации всех управляемых компонентов установки (1) сжатого воздуха. ! 5. Способ по п.1, отличающийся тем, что он является распределенным, другими словами, применяют несколько контроллеров, ни один из которых не определяет режим эксплуатации всех управляемых компонентов установки (1) сжатого воздуха. ! 6. Способ по п.1, отличающийся тем, что он является последовательным, другими словами, несколько из вышеупомянутых управляемых компонентов установки (1) сжатого воздуха установлены в предопределенной последовательности и включаются или выключаются согласно этой последовательности на основе потребления сжатого воздуха сетей (2 и 3) сжатого во РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2009 105 495 (13) A (51) МПК F04B 49/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2009105495/06, 21.06.2007 (71) Заявитель(и): АТЛАС КОПКО ЭРПАУЭР, НАМЛОЗЕ ВЕННОТСХАП (BE) (30) Конвенционный приоритет: 18. ...

Method for controlling compressor installation

本发明涉及用于控制压缩器系统的方法，所述压缩器系统包括多个可选地具有不同的设计和/或性能的压缩器，其中该压缩器系统意图保持加压流体系统中的预定义的超压，虽然可能甚至会使从加压流体系统抽取加压流体发生波动，其中以固定或者可变的时间间隔确定用于使所述系统适应于当前状态的变换操作，其中-在预选择步骤中，优选地考虑到当前状态，变换供选方案被从多个以组合方式获得的变换供选方案中排除；-在主选择步骤中，剩余的变换供选方案被相互权衡同时参考一个最优化标准或者多个最优化标准，并且在给定的标准中间选择优化的变换供选方案，和-在控制步骤中，所选择的变换供选方案被输入用于在压缩器系统中的实施。

Rotary compressor

一种旋转压缩机，旋转压缩机包括设置在密封壳体内的电机部和作二段压缩式的压缩机构部，电机部包括定子和转子，压缩机构部包括第一气缸和第二气缸、驱动第一活塞和第二活塞分别在第一气缸压缩腔和第二气缸压缩腔内作偏心旋转的曲轴、以及支撑曲轴的主轴承和副轴承，第一滑片和第二滑片的端部分别与第一活塞和第二活塞的外周相接，第一气缸压缩腔吐出到密封壳体内的气体被吸入到第二气缸压缩腔中。第二气缸压缩腔上设置有与其相通的冷媒注入装置。本发明具有空调能力及效率高、安全可靠、适用范围广的特点，可被推广应用到热泵式空调上。

Pump

본 발명은, 용적식 건식 펌프로서, 고진공 스테이지에서의 펌프 입구로부터 저진공 스테이지에서의 펌프 출구까지 펌핑 스테이지를 통해 유체를 연속으로 펌핑하기 위해 하나 이상의 구동 샤프트에 의해 구동되는 복수의 펌핑 메커니즘을 각각 포함하는 복수의 진공 펌핑 스테이지와; 구동 샤프트를 회전운동할 수 있도록 지지하는 베어링 조립체를 수용하는 윤활 챔버로서, 구동 샤프트는 고진공 스테이지로부터 윤활 챔버의 헤드 플레이트의 개구부를 통해 윤활 챔버까지 연장되는, 상기 윤활 챔버와; 스테이지간 퍼지 포트로서, 이를 통해 가스가 고진공 스테이지의 하류측의 스테이지간 위치에서 상기 펌프에 유입될 수 있고 스테이지간 퍼지 포트의 하류측의 각 진공 펌핑 스테이지만을 통과할 수 있는, 상기 스테이지간 퍼지 포트와; 윤활 챔버 내에 위치하는 윤활 챔버 퍼지 포트로서, 이를 통해 퍼지 가스가 퍼지 가스 소스로부터 유동할 수 있는, 상기 윤활 챔버 퍼지 포트를 포함하며, 스테이지간 퍼지 포트는 윤활 챔버에 연결되어 윤활 챔버 내의 퍼지 가스의 압력을 제어함으로써, 사용중에 헤드 플레이트의 개구부를 통한 고진공 챔버로부터 윤활 챔버로의 펌핑된 가스의 통과를 저지하는 펌프를 제공한다.

Hermetic rotary compressor

본 발명의 밀폐형 회전식 압축기는 밀폐 케이스(1) 내에 회전축(4)을 통해 전동기부(3)와 제 1, 제 2 압축 기구부(2A, 2B)를 연결하여 수용하고, 제 2 압축 기구부(2B)는 블레이드(15b)를 밀폐 케이스내 압력과 블레이드 선단부에 작용하는 실린더실(14b) 내의 압력의 압력차에 의해 억압 부세하고, 실린더실(14b) 내에 흡입구멍(d)을 통해 저압 냉매를 도입하여 압축 운전을 실시하는 통상 운전과, 실린더실(14b) 내에 고압 냉매를 도입하여 블레이드(15b)를 편심 롤러(13b)로부터 분리시켜 압축 운전을 실시하지 않는 비압축 운전을 전환 가능하게 하고, 실린더실(14b)에 일단이 직접 개구하는 개구부(e)를 구비하고, 타단부가 밀폐 케이스(1) 내에 연통하는 고압 도입 통로(P)를 설치하고, 고압 도입 통로(P)의 중도부에 전자 개폐 밸브(28)를 설치하는 것을 특징으로 한다. The hermetic rotary compressor of the present invention connects and accommodates the electric motor unit 3 and the first and second compression mechanism units 2A and 2B through the rotary shaft 4 in the sealed case 1, and the second compression mechanism unit 2B. Pressurizes the blade 15b by the pressure difference between the pressure in the sealed case and the pressure in the cylinder chamber 14b acting on the blade tip, and introduces a low pressure refrigerant through the suction hole d in the cylinder chamber 14b. The normal operation which performs a compression operation and the high pressure refrigerant | coolant are introduce | transduced into the cylinder chamber 14b, the blade 15b is isolate | separated from the eccentric roller 13b, and the non-compression operation which does not perform a compression operation can be switched, and a cylinder chamber is performed. It is provided with the opening part e which one end opens directly in 14b, and the other end is provided with the high pressure | pressure introduction passage P in which the other end communicates in the sealed case 1, and is electronically opened and closed in the middle part of the high-pressure introduction passage P. It is characterized in that the valve 28 is provided.

Method and pump arrangement for evacuating a chamber

챔버(42)를 배기시키기 위한 방법이 개시되는 바, 이에 따르면, 부스터 펌프(46) 및 하류의 앞 펌프(47)를 포함하는 펌프 장치가 챔버(42)에 연결된다. 부스터 펌프(46)가 가속되고, 부스터 펌프(46)의 구동부(17)에 의해 제공되는 동력을 초과하는 초과 동력이 부스터 펌프(46)로부터 일시적으로 추출되도록 챔버(42)로부터 가스가 부스터 펌프(46) 안으로 들어간다. 그 가스는 부스터 펌프(46)의 출구에 전달되고, 부스터 펌프(46)의 출구 압력이 특정의 임계값 보다 높게 있는 한 가스는 우회 밸브(49)를 통해 배출된다. 부스터 펌프(46)의 출구 압력이 임계값 밑으로 떨어지면 가스는 앞으로 상기 앞 펌프(47)에 전달된다. 본 발명은 또한 본 방법을 실행하기 위한 펌프 장치에 관한 것이다. A method for evacuating the chamber 42 is disclosed wherein a pump device including a booster pump 46 and a downstream forward pump 47 is connected to the chamber 42. The booster pump 46 is accelerated and gas is drawn from the chamber 42 to the booster pump 46 so that excess power exceeding the power provided by the drive 17 of the booster pump 46 is temporarily extracted from the booster pump 46. [ 46). The gas is delivered to the outlet of the booster pump 46 and the gas is discharged through the bypass valve 49 as long as the outlet pressure of the booster pump 46 is above a certain threshold. When the outlet pressure of the booster pump 46 falls below the threshold value, the gas is forwarded to the forward pump 47 in the forward direction. The present invention also relates to a pump apparatus for carrying out the method.

Method to control compressed air plant, compressed air plant and controller to realise such method

FIELD: engines and pumps. ^ SUBSTANCE: method to control a module (1) for compressed air, comprising one or several networks of compressed air, and also multiple communicating controllers (6, 9, 13, 23, 24, 25 or 26) to control components, which represent a part of the specified compressed air networks. The specified components are controlled so that neither of communicating controllers (6, 9, 13, 23, 24, 25 or 26) determines working conditions of all components controlled by other controllers. It makes it possible to control only simple networks of compressed air with quite low number of components. ^ EFFECT: simplified design. ^ 2 dwg, 13 cl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 423 619 (13) C2 (51) МПК F04B 49/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009105506/06, 21.06.2007 (24) Дата начала отсчета срока действия патента: 21.06.2007 (72) Автор(ы): ЛЕФЕБВР Тина Мария Антуанетта (BE), ПЕТТЕРССОН Йохан Георг Урбан (BE) R U (73) Патентообладатель(и): АТЛАС КОПКО ЭРПАУЭР, НАМЛОЗЕ ВЕННОТСХАП (BE) Приоритет(ы): (30) Конвенционный приоритет: 18.07.2006 BE 2006/0394 (43) Дата публикации заявки: 27.08.2010 Бюл. № 24 2 4 2 3 6 1 9 (45) Опубликовано: 10.07.2011 Бюл. № 19 (56) Список документов, цитированных в отчете о поиске: WO 983297 A1, 30.07.1998. US 200401515 A1, 05.08.2004. WO 9616271 A1, 30.05.1996. US 4502842 A1, 05.03.1985. 2 4 2 3 6 1 9 R U (86) Заявка PCT: BE 2007/000064 (21.06.2007) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.02.2009 (87) Публикация заявки РСТ: WO 2008/009073 (24.01.2008) Адрес для переписки: 103735, Москва, ул.Ильинка, 5/2, ООО "Союзпатент", пат.пов. Ю.Б.Перегудовой, рег. № 1103 (54) СПОСОБ УПРАВЛЕНИЯ УСТАНОВКОЙ ДЛЯ СЖАТОГО ВОЗДУХА, УСТАНОВКА ДЛЯ СЖАТОГО ВОЗДУХА И КОНТРОЛЛЕР ДЛЯ ОСУЩЕСТВЛЕНИЯ ТАКОГО СПОСОБА (57) Реферат: Способ управления модулем (1) для сжатого воздуха, содержащим одну или несколько сетей ...

Hermetic compressor and refrigeration cycle device

본 발명은 밀폐형 압축기 및 냉동 사이클 장치에 관한 것으로, 밀폐 케이스내(1)에 전동 기구부(3)와 압축 기구부(2A, 2B)를 수용하고, 압축 기구부(2B)는 롤러(12b)를 편심 회전 자유롭게 수용하는 실린더실(14a)을 실린더(8B)에 구비하고, 선단부가 롤러(12b)의 둘레면에 접촉되도록 가압 눌러지게 롤러(12b)의 회전 방향을 따라서 실린더실(14a)을 2분하는 블레이드(16b)를 구비하고, 실린더실(14a) 내에 고압 냉매를 인도하여 블레이드(16b)를 롤러(12b)로부터 이간하는 고압 냉매 도입 기구(P)를 구비하고, 부하의 대소에 따라서 모든 압축 기구부(2A, 2B)에서 압축 운전을 실시하는 대능력 운전과, 압축 기구부(2B)의 블레이드(16b)를 롤러(12b)로부터 이간시켜 압축시키지 않는 저능력 운전을 전환 가능하게 하고, 고압 냉매 도입 기구(P)는 고압 냉매를 저류하는 고압 냉매 저류부(34)를 구비하고, 운전중과 운전 정지 중에서도 안정된 운전 전환으로 가능하게 하고, 충돌음 등의 이상음의 발생을 방지하는 것을 특징으로 한다.

Two stage primary dry pump

본 발명은, 반도체제조설비의 진공체임버등의 배기에 사용되는 진공펌프에 관한 것으로서, 저소비동력, 저소음으로 낮은 도달진공압을 얻을 수 있는 진공펌프를 제공하는 것을 목적으로 한 것이며, 그 구성에 있어서, 배기량이 큰 제 1의 펌프와, 배기량이 작은 제 2의 펌프(7)를 직렬로 연결하고, 중량유량이 큰 기체를 힙인할 때는 사이 제 1의 펌프를 풀가동시키고, 또 흡기쪽이 충분히 낮은 진공압에 도달하였을때는, 상기 제 1의 펌프의 배기구멍(8)을 폐쇄하고, 제 1의 펌프의 배기쪽압력을 내리므로써, 소비동력을 내리고, 저소음화를 도모할 수 있는 것을 특징으로 한 것이다.

PUMPING SYSTEM FOR CREATING A VACUUM AND PUMPING METHOD BY USING THIS PUMPING SYSTEM

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 114 342 A (51) МПК F04C 25/02 (2006.01) F04C 28/02 (2006.01) F04C 18/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017114342, 02.10.2014 (71) Заявитель(и): АТЕЛЬЕ БУШ СА (CH) Приоритет(ы): (22) Дата подачи заявки: 02.10.2014 (43) Дата публикации заявки: 07.11.2018 Бюл. № (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.05.2017 R U 31 (72) Автор(ы): МЮЛЛЕР Дидье (CH), ЛЯРШЕ Жан-Эрик (FR), ИЛЬЧЕВ Теодор (FR) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2016/050313 (07.04.2016) A Адрес для переписки: 129090, Москва, ул. Большая Спасская, д. 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Система (SP) откачки для создания вакуума, содержащая главный вакуумный насос, который является кулачковым насосом (3), содержащим всасывающий вход (2) газов, соединенный с вакуумной камерой (1), и выход (4) для выдува газов, сообщающийся с каналом (5) удаления газов в направлении выхода (8) для выпуска газов из системы откачки, при этом система откачки отличается тем, что содержит - обратный клапан (6), расположенный между выходом (4) для выдува газов и выходом (8) для выпуска газов, и - вспомогательный вакуумный насос (7), установленный параллельно с обратным клапаном. 2. Система откачки по п. 1, отличающаяся тем, что вспомогательный вакуумный насос выбран из группы, в которую входят кулачковый насос, безмасляный винтовой насос, многоступенчатый насос Рутса, диафрагменный насос, безмасляный лопастной насос, лопастной насос смазываемого типа и газовый эжектор. 3. Система откачки по любому из пп. 1 и 2, отличающаяся тем, что вспомогательный вакуумный насос (7) является безмасляным винтовым насосом. 4. Система откачки по любому из пп. 1 и 2, отличающаяся тем, что вспомогательный вакуумный насос (7) является кулачковым насосом. Стр.: 1 A 2 0 1 7 1 1 4 3 4 2 (54) СИСТЕМА ОТКАЧКИ ДЛЯ СОЗДАНИЯ ВАКУУМА И СПОСОБ ...

Vacuum pump system and the method for operated vacuum pumps system

本发明涉及包括真空泵(10)的真空泵系统，该真空泵具体为螺杆泵的形式。所述系统用于排空腔室(16)。当达到腔室(16)中的期望的设定压强时，可以以待机模式来操作所述真空泵系统。为此，出口导管(22)经由旁路导管(24)连接到入口导管(30)。在待机模式中，所述进口阀(18)被关闭而旁路阀(26)被打开，使得回路中的介质可以由真空泵(10)来输送。结果是，基本上以操作温度来维持所述真空泵。

Vacuum pump system

A vacuum pump system for evacuating a chamber, in particular a lock chamber or process chamber, comprises a main vacuum pump (12) preferably designed as a screw pump. An inlet (30) of the main vacuum pump (12) is connected to the chamber that is to be evacuated. An auxiliary vacuum pump (24), especially a Roots pump, is disposed in the pumping direction of the main vacuum pump (12). An outlet zone (32) of the main vacuum pump (12) is connected to a main outlet (34) and to an inlet (38) of the auxiliary vacuum pump. Furthermore, an outlet (40) of the auxiliary vacuum pump is connected to the main outlet (34).

Pumping system and the pumping method using this pumping system for producing vacuum

产生真空的泵送系统(SP)，包含主要真空泵，该主要真空泵是具有气体抽吸入口(2)及气体排放出口(4)的爪式泵(3)，该气体抽吸入口被连接至真空室(1)，该气体排放出口在泵送系统的外部的气体排气出口(8)的方向上通向气体排空管道(5)中。该泵送系统包含止回阀(6)及辅助真空泵(7)，该止回阀被定位在该气体排放出口(4)与该气体排气出口(8)之间，该辅助真空泵被并联连接至该止回阀。该主要真空泵(3)被启动，以便泵送真空室(1)中所含有的气体，及将这些气体排放通过它的气体排放出口(4)，同时辅助真空泵(7)被启动，并且辅助真空泵(7)在主要真空泵(3)泵送真空室(1)中所含有的气体的整个时间期间持续泵送，和/或在主要真空泵(3)维持真空室(1)中的一个限定的压力的整个时间期间持续泵送。

HIGH PRESSURE COMPRESSION INSTALLATION WITH MULTIPLE FLOORS

L'invention concerne une installation de compression haute pression à plusieurs étages, trouvant notamment son application à la production de bouteilles en matière PET.L'installation de l'invention comprend une canalisation principale (2) débouchant dans un tampon (3), dans laquelle au moins deux compresseurs (4, 5) sont montés en série avec chacun leur propre entraînement (9, 10). L'installation est équipée de moyens (7) pour déterminer la pression à la sortie de la canalisation principale (2), cette installation étant raccordée à un boîtier de commande (8).De façon caractéristique, le boîtier de commande (8) est relié à au moins deux des entraînements (9, 10) des compresseurs (4, 5) et procure une commande de ces compresseurs telle que ces derniers tournent ensemble en charge ou sans charge.Ainsi, les compresseurs (4, 5) sont mis conjointement en charge sur la base de la pression régnant dans le tampon (3), si bien qu'à la mise en charge du compresseur représentant l'étage de surpression, le ou les compresseurs des étages de compression inférieurs sont automatiquement et conjointement mis en charge. The invention relates to a multi-stage high-pressure compression installation, which is particularly applicable to the production of PET bottles. The installation of the invention comprises a main pipe (2) opening into a buffer (3), in which at least two compressors (4, 5) are connected in series with each their own drive (9, 10). The installation is equipped with means (7) for determining the pressure at the outlet of the main pipe (2), this installation being connected to a control box (8) .Typically, the control box (8) is connected to at least two of the drives (9, 10) of the compressors (4, 5) and provides control of these compressors such that the latter rotate together under load or without load.Thus, the compressors (4, 5) are jointly in charge on the basis of the pressure in the buffer (3), so that at the loading of the compressor ...

Air conditioner

THERMODYNAMIC SYSTEM

Ce dispositif de compression (6) comprend des premier et deuxième compresseur (7, 8) montés en parallèle, une ligne d'aspiration (19) destinée à être reliée à une sortie d'un évaporateur (5), des première et deuxième conduites d'aspiration (21) agencées pour mettre en communication la ligne d'aspiration (19) avec respectivement les orifices d'admission (15) des premier et deuxième compresseurs (7, 8), et une conduite d'égalisation de niveau d'huile (24) reliant les carters d'huile (13) des premier et deuxième compresseurs (7, 8). Le dispositif de compression (6) comprend en outre un séparateur d'huile (31) monté sur la ligne d'aspiration (19) ou sur la deuxième conduite d'aspiration (22), et une conduite de retour d'huile (39) agencée pour relier un orifice de sortie d'huile (36) du séparateur d'huile (31) au carter d'huile (13) du premier compresseur (7).

Vacuum pumping device for e.g. semi-conductor manufacturing industrial process, has motor driving pump with four-stages comprising suction sides and outlets, and four bypass lines arranged between respective sides and pipelines

The device has a motor (1) driving a ROOTS type mechanical dry pump (2) with four-stages (5-8) comprising suction sides (5c-8c) and outlets (5d-8d). Inter-staged pipelines (9-11) connect the outlets (5d-7d) to the sides (6c-8c), respectively. Bypass lines (12, 13) are arranged between the side (5c) and the pipeline (9) and between the pipelines (9, 10), respectively. Bypass lines (14, 15) are arranged between the pipelines (10, 11) and between the pipeline (11) and the outlet (8d), respectively. Valves (16-19) are inserted in the pipeline (9, 11) and in the bypass lines (13, 15). An independent claim is also included for a method for vacuum pumping by a multi-staged mechanical dry pump.

Compressor, the air conditioning system with this compressor and heat pump water heater system

本发明提供了一种压缩机、具有该压缩机的空调系统以及热泵热水器系统。本发明的压缩机包括：低压压缩组件；中压腔；低压腔排气流道；增焓组件；高压压缩组件；中压气体流道；高压腔排气流道；中压气体流道包括低压腔排气流道侧流道段和高压腔吸气流道侧流道段，其中，低压腔排气流道侧流道段的最小横截面积与高压腔吸气流道侧流道段的最小横截面积比在1.4至4之间。本发明的压缩机，冷媒的压力脉动和流速脉动都相对较小，可以提高第一级排气和第二级吸气饱满度，提高补气量，从而提高压缩机效率和能效，降低能耗。

DRY TYPE MULTI-STAGE VACUUM PUMP

L'invention concerne une pompe à vide multi-étagée de type sèche comportant une pluralité d'étages de pompage (TA, T1, T2, T3, T4, TR) comportant respectivement une entrée et une sortie, les étages de pompage étant montés en série entre une aspiration (2) et un refoulement (3) de la pompe à vide, la pompe à vide comportant en outre un moyen de délestage comportant un canal (5) raccordant la sortie (6) d'un étage de pompage à délester (T1) au refoulement (3), caractérisée en ce que le moyen de délestage comporte un joint annulaire (12a, 12b) présentant une embase formant saillie radiale (14a, 14b) surmontée d'une ouverture tronconique (15a, 15b), la saillie radiale (14a, 14b) étant logée dans une gorge annulaire (11a, 11b) du canal (5) et l'ouverture tronconique (15a, 15b) formant un siège pour une bille (13a, 13b) du moyen de délestage, le joint annulaire (12a, 12b) étant réalisé en une seule pièce. The invention relates to a dry multi-stage vacuum pump comprising a plurality of pumping stages (TA, T1, T2, T3, T4, TR) respectively comprising an inlet and an outlet, the pumping stages being mounted in series between a suction (2) and a delivery (3) of the vacuum pump, the vacuum pump further comprising a load shedding means comprising a channel (5) connecting the outlet (6) of a pumping stage to be unloaded (T1) at the discharge (3), characterized in that the load shedding means comprises an annular seal (12a, 12b) having a radial projection base (14a, 14b) surmounted by a frustoconical opening (15a, 15b), the radial projection (14a, 14b) being housed in an annular groove (11a, 11b) of the channel (5) and the frustoconical opening (15a, 15b) forming a seat for a ball (13a, 13b) of the unloading means, the annular seal (12a, 12b) being made in one piece.

IMPROVEMENTS IN THE EFFICIENCY OF A PUMPING SYSTEM

Le système de pompage pour faire le vide comprend une pluralité de pompes à vide (P1 à P8), chacune destinée à pomper du fluide d'un sas de chargement respectif (C1 à C8). Pour diminuer la pression du fluide aux sorties de refoulement des pompes et ainsi diminuer la consommation en énergie des pompes, le fluide évacué des pompes est acheminé vers une pompe supplémentaire (Péchappement,), qui pompe la totalité du fluide évacué. Pour empêcher une surface de la pompe supplémentaire lorsque plusieurs sas de chargement sont simultanément en train d'être évacués, une vanne de purge (60) dévie de manière sélective une partie du fluide évacué de la pompe supplémentaire. The pumping system for evacuating comprises a plurality of vacuum pumps (P1 to P8) each for pumping fluid from a respective loading chamber (C1 to C8). In order to reduce the pressure of the fluid at the discharge outlets of the pumps and thereby reduce the energy consumption of the pumps, the fluid discharged from the pumps is conveyed to an additional pump (exhaust) which pumps all the fluid discharged. To prevent an additional pump surface when multiple loading locks are simultaneously being evacuated, a purge valve (60) selectively deflects a portion of the fluid removed from the supplemental pump.

Method of pumping in a system of vacuum pumps and system of vacuum pumps

Method of pumping and pumping system (SP, SPP) comprising: a lubricated-vanes main vacuum pump (3) with a gas inlet orifice (2) connected to a vacuum chamber (1) and a gas outlet orifice (4) opening into a pipe (5) before opening into the gas outlet (8) of the pumping system (SP, SPP), a non-return valve (6) positioned in the pipe (5) between the gas outlet orifice (4) and the gas outlet (8), and a lubricated-vanes auxiliary vacuum pump (7) connected in parallel with the non-return valve (6). The lubricated-vanes main vacuum pump (3) is set into operation in order to pump the gasses contained in the vacuum chamber (1) through the gas outlet orifice (4); simultaneously, a lubricated-vanes auxiliary vacuum pump (7) is set in operation and continues to be in operation for all of the time that the lubricated-vanes main vacuum pump (3) is pumping the gasses contained in the vacuum chamber (1) and/or for all of the time that the lubricated-vanes main vacuum pump (3) is maintaining a defined pressure in the vacuum chamber (1).

PUMPING DEVICE AND EQUIPMENT FOR MANUFACTURING FLAT SCREENS THEREFOR

L'invention concerne un dispositif de pompage de gaz destiné à être raccordé à une enceinte à pomper, comprenant un premier étage de pompage (7) destiné à être connecté à la sortie de l'enceinte à pomper, et au moins un deuxième étage de pompage (17), les étages de pompage (7,17) étant raccordés en série les uns à la suite des autres dans un ordre prédéterminé et étant configurés de sorte que le débit engendré par étage de pompage (7,17) décroisse avec la position de l'étage de pompage (7,17) dans la série, caractérisé en ce que le dispositif de pompage comporte en outre : - un troisième étage de pompage (27) agencé en série à la sortie du dernier deuxième étage de pompage (17 ), et présentant un débit engendré supérieur au débit du dernier deuxième étage de pompage (17 ), et - au moins un quatrième étage de pompage (37) en série avec le troisième étage de pompage (27) présentant un débit engendré inférieur au débit du troisième étage de pompage (27). L'invention concerne également un équipement de fabrication d'écrans plats comportant une chambre de procédé comprenant des moyens d'injection de gaz comprenant du dioxygène et/ou un gaz oxydant tel qu'un halogène, caractérisé en ce qu'il comporte en outre un tel dispositif de pompage (1) de gaz. The invention relates to a gas pumping device intended to be connected to an enclosure to be pumped, comprising a first pumping stage (7) intended to be connected to the outlet of the enclosure to be pumped, and at least one second stage of pump (17), the pumping stages (7, 17) being connected in series one after the other in a predetermined order and being configured so that the flow rate generated per pumping stage (7, 17) decreases with the position of the pumping stage (7, 17) in the series, characterized in that the pumping device further comprises: - a third pumping stage (27) arranged in series at the outlet of the last second pumping stage ( 17), and having a flow generated greater than ...

Compressor-injector

COMPRESSION DEVICE AND THERMODYNAMIC SYSTEM COMPRISING SUCH A COMPRESSION DEVICE

COMPRESSION DEVICE, AND THERMODYNAMIC SYSTEM COMPRISING SUCH A COMPRESSION DEVICE

METHOD AND APPARATUS FOR PUMPING A CHAMBER OF PROCESSES

La présente invention concerne un dispositif de pompage destiné à être raccordé à une chambre de procédés (2) comportant une pompe à vide primaire sèche (3), un moyen de pompage auxiliaire (4) monté en dérivation d'un clapet anti-retour (13) de la pompe à vide (3), un premier dispositif à vanne (5) raccordé à un moyen de purge (11) de la pompe à vide primaire sèche (3) et destiné à être raccordé à une alimentation en gaz (14), un deuxième dispositif à vanne (6) monté en dérivation du clapet anti-retour (13), en amont du moyen de pompage auxiliaire (4), et un moyen de contrôle configuré pour contrôler le premier et le deuxième dispositifs à vanne (5, 6) en fonction d'un état de fonctionnement de la chambre de procédés (2) de sorte que le premier dispositif à vanne (5) soit au moins partiellement fermé et le deuxième dispositif à vanne (6) soit ouvert lorsque la chambre de procédés (2) est en fonctionnement de vide limite. La présente invention concerne également un procédé de pompage d'une chambre de procédés (2) au moyen d'un tel dispositif de pompage (1).

Rotary vane vacuum pump, detector and freeze-drying installation

Pompe à vide à palettes (1) comprenant :- un étage basse pression (2),- un étage haute pression (3),- une cuve (13) destinée à contenir une réserve de lubrifiant liquide (12) dans lequel baignent le stator haute pression (17) et le stator basse pression (4),- un canal d’amenée haute pression (101) destiné à communiquer avec le lubrifiant liquide (12) contenu dans la cuve (13) et qui débouche dans la chambre de compression haute pression (18) pour l’alimenter en lubrifiant liquide (12), caractérisée en ce que la pompe à vide à palettes (1) comporte en outre un canal d’amenée basse pression (105) destiné à communiquer avec le lubrifiant liquide (12) contenu dans la cuve (13) et qui débouche dans la chambre de compression basse pression (5) pour l’alimenter en lubrifiant liquide (12). Figure d’abrégé : Figure 1 Vane vacuum pump (1) comprising:- a low pressure stage (2),- a high pressure stage (3),- a tank (13) intended to contain a reserve of liquid lubricant (12) in which the stator is immersed high pressure (17) and the low pressure stator (4),- a high pressure supply channel (101) intended to communicate with the liquid lubricant (12) contained in the tank (13) and which opens into the compression chamber high pressure (18) to supply it with liquid lubricant (12), characterized in that the vane vacuum pump (1) further comprises a low pressure supply channel (105) intended to communicate with the liquid lubricant ( 12) contained in the tank (13) and which opens into the low pressure compression chamber (5) to supply it with liquid lubricant (12). Abstract Figure: Figure 1

THERMODYNAMIC SYSTEM EQUIPPED WITH A PLURALITY OF COMPRESSORS

Ce système thermodynamique comprend un circuit de circulation d'un fluide frigorigène comportant notamment un dispositif de compression comprenant un premier et un deuxième compresseurs (7, 8) comprenant chacun une enceinte étanche (9) pourvue d'une partie basse pression (11) contenant un moteur (12) et un carter d'huile (13) disposé dans le fond de l'enceinte, et d'un orifice d'admission (15) de fluide frigorigène débouchant dans la partie basse pression, un dispositif de distribution (18) de fluide frigorigène reliant un évaporateur (5) à l'orifice d'admission (15) du premier compresseur (7), une conduite d'égalisation de niveau d'huile (21) mettant en communication les carters d'huile (13) des premier et deuxième compresseurs, un dispositif de raccordement (22) mettant en communication la partie basse pression (11) du premier compresseur (7) avec l'orifice d'admission (15) du deuxième compresseur (8), et des moyens de commande (28) agencés pour commander la mise en marche et l'arrêt des premier et deuxième compresseurs selon quatre modes de commande. This thermodynamic system comprises a circulation circuit of a refrigerant including in particular a compression device comprising a first and a second compressor (7, 8) each comprising a sealed chamber (9) provided with a low pressure part (11) containing a motor (12) and an oil sump (13) disposed in the bottom of the enclosure, and a refrigerant inlet (15) opening into the low pressure portion, a distribution device (18) ) refrigerant connecting an evaporator (5) to the inlet (15) of the first compressor (7), an oil level equalizing line (21) communicating the oil sump (13). ) of the first and second compressors, a connecting device (22) placing the low pressure part (11) of the first compressor (7) in communication with the inlet (15) of the second compressor (8), and means control units (28) arranged to control the setting-in and stopping the first and ...

multistage dry vacuum pump

본 발명은 펌프의 실린더 몸체와 로터를 함께 냉각시켜 펌프 실린더 몸체와 로터의 열 팽창하는 조건을 유사하게 맞춰줌으로써 부재들 간의 열팽창의 차이에 기인하여 발생하는 펌프의 고착을 방지하고, 로터와 실린더의 틈새 설계의 적정성을 확보하여 높은 진공도를 달성하며, 펌프 설비의 규모를 작게 만들고 관리유지 비용의 절감이 가능한 다단형 건식 진공펌프를 제공하는 데 목적이 있다. 이를 위해 본 발명은 다단으로 형성되는 각 실린더 몸체에 각 실린더로부터 압축되는 가스가 이송되는 가스통로를 각 실린더의 외주를 감싸는 형태로 형성하며, 다시 그 가스통로들의 외주를 인접하여 감싸도록 냉각수가 순환하는 냉각수 재킷을 형성하며, 상기 냉각수 재킷에 접한 각각의 가스통로를 연통로를 개재하여 실린더의 배기 공간 측에 연통시킨 것을 특징으로 한다. The present invention is to cool the cylinder body and the rotor of the pump together to match the thermal expansion conditions of the pump cylinder body and the rotor similarly to prevent the sticking of the pump caused by the difference in thermal expansion between the members, The objective is to provide a multi-stage dry vacuum pump that can achieve high vacuum degree by ensuring proper design of clearance, reduce the size of pump equipment and reduce maintenance cost. To this end, the present invention forms a gas passage in which gas compressed from each cylinder is transferred to each cylinder body formed in multiple stages so as to surround the outer periphery of each cylinder, and the cooling water is circulated to surround the outer peripheries of the gas passages adjacently. And forming a cooling water jacket, and communicating each gas passage in contact with the cooling water jacket to an exhaust space side of the cylinder via a communication passage.

Patent FR2133192A5

Multi-stage dry pump

다단식 드라이 펌프로서: 각각이 실린더와 상기 실린더에 수용된 로터를 포함하는 복수의 펌프실과; 복수의 상기 로터의 회전축이 되는 제1 로터 샤프트와; 상기 제1 로터 샤프트를 회전 가능하게 지지하며, 상기 제1 로터 샤프트의 축방향 이동을 규제하는 고정 베어링과; 상기 제1 로터 샤프트를 회전 가능하게 지지하며, 상기 제1 로터 샤프트의 축방향 이동을 허용하는 자유 베어링;을 구비하고, 상기 복수의 펌프실은 상기 고정 베어링과 상기 자유 베어링 사이에 배치되고; 상기 복수의 펌프실 중, 흡기측 압력이 낮은 제1 펌프실이, 상기 고정 베어링에 가깝게 배치되어 있는; 것을 특징으로 하는 다단식 드라이 펌프. A multistage dry pump, comprising: a plurality of pump chambers each including a cylinder and a rotor accommodated in the cylinder; A first rotor shaft serving as a rotation axis of a plurality of the rotors; A fixed bearing rotatably supporting said first rotor shaft and regulating axial movement of said first rotor shaft; A free bearing rotatably supporting the first rotor shaft and allowing axial movement of the first rotor shaft; wherein the plurality of pump chambers are disposed between the fixed bearing and the free bearing; A first pump chamber having a low intake side pressure is arranged close to the fixed bearing among the plurality of pump chambers; Multistage dry pump, characterized in that.