КОРПУСНО-СЕКЦИОННЫЙ НАСОС С УСТРОЙСТВОМ ДЛЯ ВЫПУСКА ВОЗДУХА, А ТАКЖЕ СООТВЕТСТВУЮЩИЙ СПОСОБ

Группа изобретений касается конструкции циркуляционного насоса и способа его гидравлического испытания. Насос содержит кожух (1) и по меньшей мере один корпус (5) секции, который отделяет внутреннюю камеру (9) сжатия от внешней камеры (10) сжатия. В корпусе (5) секции установлено по меньшей мере одно устройство (8) для выпуска воздуха. Устройство (8) для выпуска воздуха содержит элемент (13) для разблокировки или для блокирования средообмена между внутренней камерой (9) сжатия и внешней камерой (10) сжатия. Изобретения направлены на создание надежного и экономичного в эксплуатации простого в сборке насоса, проведение гидравлических испытаний которого возможно в собранном состоянии. 2 н. и 11 з.п. ф-лы, 2 ил.

ЦЕНТРОБЕЖНЫЙ САМОВСАСЫВАЮЩИЙ НАСОС

... 1. Центробежный самовсасывающий насос, содержащий корпус со всасывающим и напорным отверстиями, установленные в корпусе рабочее колесо, состоящее из заднего диска с лопатками и переднего диска с входной воронкой, а также направляющий аппарат с диффузорными и обратными каналами, струйный аппарат, состоящий из сопла с центрирующей втулкой и изогнутого диффузора со входом и выходом, отличающийся тем, что струйный аппарат выполнен поворотным в вертикальной плоскости в пределах нижней части корпуса насоса, а всасывающее отверстие расположено не выше горизонтальной плоскости, проходящей через ось вращения рабочего колеса. ! 2. Центробежный самовсасывающий насос по п.1, отличающийся тем, что выход изогнутого диффузора струйного аппарата размещен во входной воронке рабочего колеса. ! 3. Центробежный самовсасывающий насос по п.1 или 2, отличающийся тем, что угол между вертикальной и горизонтальной осями изогнутого диффузора выполнен в пределах 90°. ! 4. Центробежный сайовсасывающий насос по п.1, ...

ЦЕНТРОБЕЖНЫЙ НАСОС

Рабочее колесо со ступицей жестко сидит на валу. Кромки рабочего колеса со стороны привода вращаются с небольшим зазором "а" над задней стенкой корпуса насоса. Она образует с рабочим колесом лабиринтный зазор, который соединяет насосную камеру с камерой ступицы. В камере ступицы расположена жестко соединенная с рабочим колесом коаксиальная крыльчатка для придания жидкости в камере ступицы более сильного вращательного движения и ее выбрасывания. Камера ступицы снабжена периферийным отверстием для выхода жидкости. Скапливающийся в зоне вала воздух выходит через зазор, образованный стенкой корпуса ступицы и валом. Периферийное отверстие расположено в стенке корпуса ступицы и выполнено в виде напорного сопла. Оно заканчивается в камере, примыкающей к камере ступицы и соединенной с ней зазором, направлено к диффузорной трубе и образует струйный насос, через который течет выходящая из камеры ступицы жидкость.

СПОСОБ ИЗМЕРЕНИЯ КАВИТАЦИОННОГО ЗАПАСА НАСОСА

Способ измерения кавитационного запаса насоса, включающий измерение разности давлений на входе в насос и пара перекачиваемой жидкости, инициируемого вне проточной части насоса с помощью, например, кавитационной трубки типа Вентури или баллончика, размещенного на входе в насос и частично заполненного перекачиваемой жидкостью, отличающийся тем, что кавитационную трубку с пережатым сечением (горловиной) размещают на вспомогательной обвязке, обеспечивающей перепуск части перекачиваемой жидкости и ее контроль с выхода на вход насоса с помощью запорных кранов и расходомера, устанавливают экспериментально зависимость предельного расхода жидкости через трубку от давления на входе qпр=qпр(Рвх), определяют по формулам зависимость времени нахождения жидкости в метастабильном состоянии в трубке от расхода qпр, τтр=τтр(qпр) и по времени прохождения жидкости зоны метастабильного состояния в насосе, определяемого по формуле (3) с помощью зависимостей τтр=τтр(qпр) определяют объемный расход qпр, на котором ...

Система заливки насоса

Изобретение позволяет повысить надежность работы системы заливки насоса путем организации дополнительной подпитки жидкостно-кольцевого насоса из источника откачиваемой жидкости. Система снабжена трубопроводом (Т) 5 с установленными на нем диафрагмой (Д) 6 и обратным клапаном (К) 7, посредством которого линия 8, соединяющая вакуум-насос 2 с внутренней полостью насоса (Н) 1, подключена к источнику 9. При работе системы воздух откачивается из Н 1 посредством вакуум-насоса 2. При этом часть жидкости (Ж) подается через трубку 4 динамического напора из жидкостного кольца в сальники Н 1. Одновременно по Т 5 через Д 6 и К 7 Ж из источника 9 поступает на всос вакуум-насоса 2. Таким образом возмещаются утечки Ж из циркуляционного контура жидкостно-кольцевого насоса и исключается возможность опорожнения циркуляционного бачка. 1 ил.

Насосный агрегат

Способ запуска центробежного насоса

Лопастной насос

... 1. 1. ЛОПАСТНОЙ НАСОС, содержащий корпус, установленный в нем шнек с лопастями, газовый коллектор и каналы, выполненные в корпусе, входные отверстия которых расположены в коллекторе , а выходные - в полости насоса, отличающийся тем, что, с целью улучшения 4 7 70 12 I Э /5ЛГ/ IJ Jr кавитационных и энергетических характеристик насоса путем упорядочения направления и количества подаваемого в корпус газа, выходные отверстия каналов выполнены над лопастями шнека. 2.Насос по п. 1, отличающийся тем, что выходные участки каналов выполнены наклонными под углом установки лопастей на их периферии в плоскости, касательной к внутренней поверхности корпуса. 3.Насос по пп. 1 и 2, отличающийся тем, что выходные отверстия выполнены на осевом расстоянии от входных кромок лопастей шнека, равном 1 § - шаг, Z - число лопастей шнека. 4.Насос по пп. 1-3, отличающийся тем, что на входе в газовый коллектор установлен регулируемый дроссель, а на корпусе- датчик вибрации, связанный с дросселем. 1 ...

Устройство для заливки несамовсасывающего насоса

Сепарационное устройство для повышения антикавитационных качеств центробежных и пропеллерных насосов

Зачистной насосный агрегат

DEVICE FOR PROTECTING SUPPLY PUMP OF HEAT POWER STATIONS AGAINST BREAK-DOWN

CПOCOБ ПOBЫШEHИЯ ПPOИЗBOДИTEЛЬHOCTИ HACOCA

METHOD AND CENTRIFUGAL PUMP FOR PUMPING FLUID

Способ работы центробежного насоса для перекачивания неоднородных сред

Устройство для заливки насоса

Изобретение позволяет сократить время заливки. Устройство содержит вакуумный котел (ВК) 2, верхняя часть которого соединена с внутренней полостью насоса (Н) 1, а нижняя через клапан (К) 5 - с резервуаром (Р) 4 откачиваемой жидкости. К 5 состоит из размещенного в корпусе с входным и выходным патрубками рабочего органа (РО). В РО выполнены основные и дроссельные каналы (ОК и ДК). При откачке воздуха из ВК 2 РО занимает положение, ближнее к выходному патрубку ВК 2 соединяется с Р 4 через ДК. Поступление жидкости в ВК 2 ограничивается и в первую очередь заливается Н 1. После заливки Н 1 и прекращения откачки воздуха РО занимает в корпусе положение, ближнее к входному патрубку ВК 2 сообщается с Р 4 через ОК. В этом режиме гидравлическое сопротивление К 5 мало и он не препятствует сливу жидкости из ВК 2 в Р 4. За счет этого поддерживается вакуум в ВК 2 и внутренних полостях Н 1. 2 ил.

Способ перекачивания жидкости и центробежный насос для его осуществления

Сущность изобретения: всасывают и нагнетают жидкость путем пропуска ее через вращающийся орган к месту назначения. Жидкость перед нагнетанием деаэрируют за счет подключения зоны низкого давления к линии вакуумирования через вертикальный трубопровод, имеющий высоту больше высоты гидростатического подъема жидкости . Для осуществления этого способа используют центробежный насос. В корпусе установлено на полом валу с радиальными каналами рабочее колесо с лопастями. Вертикально расположенный трубопровод сообщен через полость вала с зоной низкого давления, Разделительная емкость сообщена с верхним концом трубопровода. Радиальные каналы выполнены у основания лопастей. Трубопровод подключен к емкости тангенциально, сообщен с полостью вала со стороны торца вала через торцовое уплотнение и имеет высоту, превышающую 10 м. Линия вакуумирования подключена к верхней части емкости. 2 с.п. ф-лы. 1 ил. со с ...

Шнек

Насосная установка для легкокипящих жидкостей

Изобретение к энергетике и позволяет повысить надежность работы насосной установки при наличии в жидкости неконденсируемых газов. В подключенной к входу насоса (Н) 1 расходной емкости (РЕ) 3 установлена перегородка 7, делящая газовый объем РЕ 3 на две части (Ч) 8 и 9. При этом Ч 8 соединена с конденсатосборником (К) 2, а Ч 9 через конденсатор 10 - с выходом контура 4 охлаждения и с магистралью 6 сдува на очистку. Нижняя часть К 2 сообщена с входом Н 1 через вентиль 12. При работе Н 1 на контур 4 выходящий пар ожижается в конденсаторе 10 и стекает в РЕ 3. Неконденсируемые газы скапливаются в Ч 9 и либо непрерывно, либо периодически удаляются по магистрали 6. При этом в Ч 8 газовая фракция не содержит неконденсируемых составляющих. Ожиженная газовая фракция накапливается в К 2 и используется для подачи на вход Н 1 через вентиль 12 при нормальных или повторных пусках Н 1. 1 ил.

Способ запуска криогенного насоса

УСТРОЙСТВО ДЛЯ ПРЕДОТВРАЩЕНИЯ СРЫВА ПИТАТЕЛЬНОГО НАСОСА

Центробежный насос

Ventilvorrichtung zum Ansaugen einer Pumpe, insbesondere für Kaffeemaschinen

Ventilvorrichtung zum Ansaugen einer Pumpe, insbesondere für Kaffeemaschinen

Ansaugvorrichtung fuer Fluessigkeitspumpen

Verfahren und Vorrichtung zur Herstellung von Fasern aus bei hoher Temperatur schmelzenden Stoffen

VERFAHREN ZUR HERSTELLUNG EINER BLASENFREIEN SCHMELZE AUS GLAS, INSBESONDERE ZUR HERSTELLUNG VON GLASFASERN, UND PUMPE, INSBESONDERE ZUR DURCHFUEHRUNG DES VERFAHRENS

Flüssigkeitspumpenaggregat, insbesondere Laugenpumpe

ANLAGE ZUM ENTGASEN VON FLUESSIGKEITEN

VERFAHREN UND ANORDNUNG ZUM UEBERFUEHREN EINES FLUESSIGEN MEDIUMS

Ansaugevorrichtung fuer oberhalb des Fluessigkeitsspiegels aufgestellte Kreiselpumpen

GASABSCHEIDER FUER MOTOR-TAUCHPUMPEN

KREISELPUMPE

Vorrichtung zum Absaugen von Gas aus Wirbelabscheidern

VORRICHTUNG ZUR VERHINDERUNG DES RUECKFLUSSES PARALLEL IN EINEM KREISLAUF GESCHALTETER KREISELPUMPEN

Einrichtung zur Steuerung der Synchronisierung eines als Asynchronmotor anlaufenden Synchronmotors

Entlüftungseinheit für Förderpumpen

Baueinheit aus einer Kreiselpumpe und aus einem Elektromotor

SAUGGERAET ZUM ABZIEHEN VON FLUESSIGKEITSANSAMMLUNGEN AUF BODENFLAECHEN

VORRICHTUNG ZUM ENTLUEFTEN VON PUMPEN

A PUMP

Pump and gas separator set

On the suction side of its pump housing a pump is provided with a gas separator optionally built integrally with the pump housing. The gas separator comprises a cyclone chamber with an inlet channel for a gas or air-containing pump medium, and a liquid outlet channel connected to the inlet of the pump. A bleed housing is provided at the upper end of the cyclone chamber, said bleed housing comprising an air duct. The air duct is substantially Z-shaped and of a cross section deviating from circular shape. The air duct comprises furthermore a relatively wide groove over at least a portion of its length and at its upper wall. The groove extends from adjacent the inlet of the air duct and forwards into said duct. In this manner a separation of gas or air from the gas or air-containing pump medium is obtained which is more reliable than the previously known separation.

Priming pumping systems

A pumping system has a pump 1 located at an elevated position with respect to a stock tank 2. The suction leg 4 of the pump is connected to the tangential port of a vortex diode 6 located in the stock tank with the axial port 10 of the diode communicating with the stock tank. A priming liquid feed supply 7, 8 is connected to the suction leg between the pump and the vortex diode. On priming the pump, priming liquid from the feed supply fills the suction leg and flows up through the pump 1 due to the high resistance to reverse flow into the tank created by the vortex diode. ...

RF communication with downhole equipment

Data or control signals are communicated over all phases of a three phase power cable 104 supplying power from a surface location to a motor/pump assembly 106 located within a wellbore utilizing modulated radio frequency signals. The radio frequency signals may be impressed on the power cable through physical taps to the power cable conductors or by reactive coupling to the power cable. The transmission frequency is selected from a range of frequencies which propagate through the motor windings and up the power cable with sufficient amplitude to be received and processed. The modulated RF signal may be transmitted concurrently with the three phase power on the power cable, and simultaneous bidirectional communications between the surface and downhole locations may be supported utilizing, for example, discrete frequencies for transmission in different directions. A network of RF transceivers or nodes 114a-114f may be situated at various locations along the wellbore and the ...

RF communication with downhole equipment

Device for supplying fuel to an energy production installation of a ship

A CENTRIFUGAL PUMP FOR CONVEYING GAS-CONTAINING MEDIA

CIRCUMFERENTIAL FLOW TYPE LIQUID PUMP

Pumping multiphase fluid.

A method for conveying fluid from a fluid or effluent sources to a destination in a same pipe, this fluid having at least a liquid phase and at least a gaseous phase, the composition of the fluid being expressed at any time by the value of the volumetric ratio GLR of the gaseous phase to the liquid phase, by using a pumping means (P) 8 designed to transfer to the fluid sufficient pressure to ensure that it is conveyed to the point of destination as long as the GLR value is below a given value and compression means (CP) 5, comprising: - ascertaining the GLR value of the fluid, - diverting a fraction at least of the gaseous phase to the compression means (CP) to transfer to the fraction sufficient pressure to ensure movement as long as the value of the volumetric ratio GLR is situated above the threshold value (VS), and - recombining as appropriate almost all the gaseous phase with the fluid from the pumping means (P) (8) and the whole, consisting of the gaseous phase and the fluid, is conveyed ...

CENTRIFUGAL PUMPS

... 1323817 Centrifugal and reciprocating pumps ARMATURENFABRIK ERNST HORN K G 21 May 1971 [22 May 1970 24 April 1971] 16339/71 Headings F1A and F1C A hand reciprocating pump arranged at the outlet side of a motor-driven centrifugal pump is adapted to dispense predetermined quantities of liquid and is provided with shut-off means. The hand pump is used for priming the centrifugal pump and can also be used instead of the centrifugal pump when small quantities of liquid are to be pumped. The cylinder 16, Fig. 2 of the hand pump may be connected to the outlet pipe 4 of the centrifugal pump, the piston 18 being carried by a slidable discharge pipe 17 which also forms the operating handle. The hand pump may comprise a single valve 19 serving as the discharge valve, the suction valve then being formed by the foot valve of the centrifugal pump. A projection 18a having a seal ring 21 is engageable with an opening 22 to close the outlet pipe 4. In a modification, Fig. 6 (not shown), the shut-off means ...

Improvements in or relating to pumping systems

... 574,140. Centrifugal pumps. PULSOMETER ENGINEERING CO., Ltd., and GIBBS, B. H. Oct. 26, 1943, No. 17662. [Class 110 (i)] A pumping system for liquids containing entrained gas comprises a rotor D, shaped as in Fig. 2, on vertical shaft C<1>, supplied with liquid from a surrounding tank, the pump being driven by an electric motor C. The liquid enters the rotor axially and released -gas escapes outwardly to a volute chamber E, passes downwards through a gap G and is guided back along the suction passage by a baffle F. The chamber E may have guide vanes, and leads to an outlet E<1>. The rotor, Fig. 2, has three spiral vanes D<2>. Instead of being conical D<1> the rotor boss may be flat or radiussed. The gap G may be formed by bevelled or curved parts.

Improvements in or relating to centrifugal pumps

... 308,442. Drysdale & Co., Ltd., and Young, J. March 2, 1928. Casing; controlling.- To prevent the formation of air loclis in a centrifugal pump due to the liberation of air at the point of lowest pressure, a pipe g or other duct or channel is provided leading from a point of higher pressure to the suction eye of the impeller, or, in the case of a multistage pump, to the eye of the first-stage impeller c; the exit nozzle h or other exits from the pipe are so arranged that the discharge therefrom is parallel with the direction of flow of the liquid entering the eye. Two or more nozzles, equally spaced round the eye of the impeller, may be provided on the pipe g. In place of the hand-operated valve k an automatic valve may be provided to open the pipe g when the delivery pressure falls.

Gas separator

A gas separator for an electric submersible centrifugal pump for a well separates gas from liquid components eg water, oil of the well fluid. The gas separator has a rotatably driven rotor 27. The rotor has an outer cylinder 29, an inner hub 31 and one or more longitudinal vanes 33 that extend between the inner hub and outer cylinder. Notches 35 are formed in the upper edge of the vanes. A stationary discharge member 37, mounted above the rotor, has a depending skirt 39 that extends into the notches. This defines a separate inner flow path 41, 45, 53, 47 for gas to flow out of the separator into the well. The unseparated portions (liquid) of the well fluid flow in a clearance 43 between the skirt and the housing into a second separator stage and then into a pump intake. Supports 49 extend radially out from the discharge member for securing the discharge member in the housing, e.g. by a screw 55. ...

Method of detecting and breaking gas locks in an electric submersible pump

A method of breaking a gas lock in an electrical submersible pump, comprising: a) monitoring a measured value related to the electrical current used by a pump motor connected to and providing power to the pump; b) comparing the measured value to a threshold value to detect the occurrence of gas lock conditions; and when those conditions are detected; c) sending an override signal to immediately reduce the flow to the pump for a set period of time; and d) comparing the measured value related to the electrical current to the threshold value at the end of the set period of time, and if gas lock conditions are not detected, then increasing the power to the pump.

FASTENING FOR PUMP IDENTIFICATION PLATE

Improvements in pumping installations for dry docks

... 750,272. Dry docks pumping. DRYSDALE & CO., Ltd., and YOUNG, J. July 13, 1954: [May 22, 1954], No. 15150/54. Class 68(2) [Also in Group XXVI] A pumping installation for a dry dock 1 includes a main pump 4 having a valveless discharge syphon 6, 7, 8 which rises above high-water level 14 of the tidal water 3 and of which the outlet end extends below low-water level 10 and is thereby watersealed. The pump 4 is located at the bottor of a pump-house chamber 2 and has a suction pipe 5 rising from a culvert 9 communicating with the dry dock 1, where 15 indicates the starting level of the water. The limb 7 of the syphon is above the highest anticipated tide and may be above the level of the dock gate. An air release valve 11 is connected to the syphon for breaking the syphon and is operated by oil pressure from a servo pump 12 driven from the main pump 4, the valve 11 opening by gravity if the servo oil pressure drops due to stoppage of the pump 4. An.auxiliary by-pass to the servo pump 12 may ...

CENTRIFUGAL SEPARATORS FOR FLUID

FLOAT VALVE MECHANISMS PARTICULARLY FOR CONTROLLING THE PRIMING OF CENTRIFUGAL PUMPS

Improvements in or relating to dispensing apparatus for liquid fuel

... 778,174. Dispensing liquids. TOKHEIM CORPORATION. Jan. 12, 1954 [Jan. 15, 1953], No. 14317/56. Divided out of 778,171. Class 116. A siphon 34, Fig. 1, joining two tanks 26, 32 from which liquid is delivered by a pump 30 is primed by an ejector 250, 254, Fig. 2, operated by liquid delivered by the pump. The invention is illustrated as applied to the system of Specification 778,171 and the vent 254 serves as in Specification 778,173 to bleed air or gas from a delivery space 208 before delivery commences. The ejector 250 returns liquid to the tank 26 and a check valve 260 is included in the connection 36 priming the siphon. Specification 753,542 also is referred to.

PRIMARY SYSTEMS FOR PUMPS

Liquid fuel pumps

... 869,781. Centrifugal pumps. LUCAS (INDUSTRIES) Ltd., JOSEPH. March 1, 1960 [March 13, 1959], No. 8744/59. Class 110 (1). In the submersible fuel pump shown, air or vapour in the fuel can escape upwardly through passages 14, 15, the gap between the motor rotor 11 and a stainless steel tubular shield 10 and thence through a vent 16. To remove the pump from the fuel tank 2, screws 7 are first turned to lower an annular valve 6 into a position in which it closes the annular inlet 3 of the pump. A drain plug 19 is then removed to empty the pump casing and at the same time allow a valve 17 to close the vent 16. The inner body 8 of the pump can then be unbolted from the tank 2 and removed, the outer casing 1 remaining in place.

Improvements in or relating to pump assemblies

... 783,468. Centrifugal pumps. BORGWARNER CORPORATION. June 6, 1955 [Nov. 3, 1954], No. 16146/55. Class 110 (1). A pump comprises an impeller having one or more helicoidal vanes extending around a conical hub, the total length of the channel or channels defined by the vane or vanes being greater than any circumference of the impeller, and the cross-sectional area of the channel or channels decreasing continuously from the inlet towards the outlet. Fig. 1 shows a booster pump mounted by means of a flange 14 on the bottom wall of an aircraft fuel tank and driven by an electric motor 13. The impeller is of conical form, with spiral vanes 21, the relative inclination of the impeller hub 25 and the conical housing wall 23 being such that the cross-sectional area of the flow passages 22 between successive vanes 21 decreases from inlet to outlet. The resultant pressure increase condenses vapour contained in the fuel. Fuel enters the pump through a screen 15 and is discharged by way of a volute 18 ...

Improvements in or relating to control systems for centrifugal pumps

... 895,485. Control of motors; centrifugal switches. WEIR Ltd., G. & J. Oct. 6, 1958 [Oct. 5, 1957] No. 31234/57. Classes 38 (3) and 38 (5). [Also in Group XXVI] A centrifugal boiler feed pump 1 is driven by an electric motor (not shown). If, when a predetermined speed is reached after starting, the pump is vapour -bound and consequently fails to develop sufficient discharge pressure to pump water, a centrifugal governor 2, acting through one end of a lever 4, moves a link 10 towards the right to open a switch 6, thereby stopping the motor. To re-start the motor, a trip mechanism (not shown) must be re-set by hand. If, however, the pressure developed at a point 7 (not necessarily the discharge branch) on the pump has reached its normal value, it causes sufficient movement of a piston 8 connected to the other end of the lever 4 to keep the switch 6 closed. The switch 6 may be connected to the link 10 by a spring, as shown, so that it is not affected by the piston 8 moving too far to the left ...

Self-priming centrifugal pump installations

Pump with liquid intended more particularly for major drillings and of small diameter.

SELFSUCKING IN PUMP UNIT

SELFSUCKING IN HYBRID PUMP

EQUIPMENT FOR THE REFORWARDING OF LIQUID AND FOR THE REMOVAL ITSELF OF THE LIQUID OF THE ELIMINATIONS GASES

Mixing controlling mean for in particular fire-extinguishing purposes serving pump units

ZENTRIFUGALPUMPE ZUR FORDERUNG VON STARK GASHALTIGEN FLUSSIGKEITEN

EINFLUTIGE KREISELPUMPE

CENTRIFUGAL PUMP

SELFSUCKING IN CENTRIFUGAL PUMP

PUMP

EINFLUTIGE CENTRIFUGAL PUMP

IN OF THE MULTI-LEVEL SELFSUCKING IN CENTRIFUGAL PUMP

SELFSUCKING IN CENTRIFUGAL PUMP

SELFSUCKING IN CENTRIFUGAL PUMP, IN PARTICULAR FOR THE PROMOTION OF LIQUIDS IN THE NAEHE OF YOUR BOILING POINT.

MULTI-LEVEL CENTRIFUGAL PUMP.

PUMP AND PROCEDURE FOR THE SEPARATION OF GAS FROM ONE PROMOTING FLUID.

IMPACT AND EQUIPMENT FOR THE GAS SEPARATION OF A PUMPED MEDIUM OF MEANS OF A PUMP.

SINGLE-STEP CENTRIFUGAL PUMP WITH A PERIPHERAL AXIAL DIFFUSER.

Selfsucking in centrifugal pump

CENTRIFUGAL PUMP FUR FLUSSIGKEITEN

LIQUID SEPARATING EQUIPMENT FOR DENTAL PLANTS

TO SEPARATE PUMP AROUND GAS FROM ONE TO PUMPING LIQUID.

CENTRIFUGAL PUMP

Centrifugal pump

PUMP FOR FIBROUS MATERIAL SUSPENSIONS WITH MEANS FOR THE SEPARATION OF GAS FROM THE SUSPENSION

Device at a more zweioder multi-level hydraulic turbomachine

TREATMENT OF A POLYPHASE FLUID

Centrifugal pump plant

Gas separator for a dipable Motorpumpe

Mechanism for the withdrawal of the milk from the Vakuumleitung of a machine milking installation

Centrifugal pump aggregate with a mechanism for the automatic production of a lubrication, a cool and an exhaust cycle

SELFSUCKING IN PUMP UNIT

SELFSUCKING IN PUMP UNIT

SELFSUCKING IN PUMP UNIT

Pump

A pump for a dishwasher has an impeller for conveying fluid, wherein it is formed as a centrifugal pump with the fluid to be conveyed being sucked-in in a central axial manner and flowing out in a radial manner. The impeller extends on a bottom surface above a pump base, wherein several fixed flow directing blades are arranged radially outside the impeller, said flow directing blades extending in a helicoidal manner with the pitch extending in the rotational direction of the impeller away from the pump base. At least one flow directing blade extends as far as up to the bottom surface of the impeller for picking up a circulating funnel or tube produced of fluid with air bubbles therein.

VERTICAL SELF-PRIMING PUMP

The present invention claims a vertical self-priming pump which comprises a pump body, a motor and a medium backflow blocking device, wherein a middle partition plate is provided inside the pump body, and a flow guide body is fixed on the middle partition plate; the motor is fixed on the pump body for driving a pump shaft to rotate; and an impeller that is arranged in the flow guide body is fixed on the lower end of the pump shaft; a backflow gap channel is formed between the outer circumferential surface of the impeller and the inner wall of the flow guide body; and the medium backflow blocking device comprises a static ring and a moving ring which are vertically and oppositely arranged, and an elastic supporting sleeve; the moving ring is embedded on the upper surface of the impeller, the elastic supporting sleeve is fixed on the upper surface of the flow guide body, and the static ring is embedded on the lower surface of an elastic supporting ring. During normal working, the elastic supporting sleeve of the present invention in the medium backflow blocking device generates a downward deformation under the action of liquid medium pressure, thus the moving ring and the static ring closely contact with each other and block the backflow gap channel, therefore the volume loss generated by the backflow is avoided, and the pump efficiency is improved. 1. A vertical self-priming pump , comprisinga pump body, wherein the inner cavity of the pump body is divided into a gas-liquid separation chamber and a liquid storage chamber through a middle partition plate that is provided with an axial inlet opening, and the gas-liquid separation chamber is above the liquid storage chamber; a flow guide body is fixed on the upper surface of the middle partition plate; the flow guide body is provided with an axial through hole and a radial flow guide hole that is in communication with the axial through hole, and the gas-liquid separation chamber is in communication with the liquid ...

Technique for preventing air lock through stuttered starting and air release slit for pumps

Apparatus, including a pumping system, is provided featuring a pump and a control circuit. The pump has an impeller housing configured with a slit at the top for trapped air to leave the impeller housing once the pump has been submerged. The control circuit is configured to cycle the pump on and off for a predetermined number of cycles so that the trapped air will float to the top and be expelled out the slit when the pump is cycled off. The control circuit is configured to leave the pump on after the predetermined number of cycles.

CAP FOR COOPERATING WITH A FLOW CONTROL ELEMENT OF A VALVE FOR A SELF-PRIMING ELECTRIC PUMP

A cap for cooperating with a flow control element of a valve for a self-priming electric pump, the valve being designed to open and close a recirculation duct for the passage of the recirculating fluid from the impeller assembly to an intake duct, the cap having a tubular body and, coaxially inside the latter, a mushroom-shaped element, which divides, with its head, the cap into a first portion and a second portion to be applied with engagement means at an opening of the recirculation duct outward, respectively in the overhead and underhead installation of the self-priming electric pump, the axial space occupation of the head and of the stem of the mushroom-shaped element that is extended from the head toward the second portion defining two alternative axial positions of interaction with the flow control element of the valve in the overhead and underhead installation. 1. A cap for cooperating with a flow control element of a valve for a self-priming electric pump , said valve being designed to open and close a recirculation duct for the passage of the recirculating fluid from the impeller assembly to the intake duct , wherein said cap has a tubular body and , coaxially inside the latter , a mushroom-shaped element , which divides , with its head , said cap into a first portion and a second portion to be applied with engagement means at an opening of said recirculation duct outward , respectively in the overhead and underhead installation of said self-priming electric pump , the axial space occupation of said head and of the stem of said mushroom-shaped element that is extended from said head toward said second portion defining two alternative axial positions of interaction with the flow control element of said valve in the overhead and underhead installation.2. The cap according to claim 1 , further comprising a first abutment lining for said flow control element on a central part of said head on the side of said first portion and with a second abutment lining for ...

CENTRIFUGAL PUMP ASSEMBLY

A centrifugal pump assembly () includes an impeller, an electric drive motor (), driving the impeller (), and a back-flow channel (), forming a flow connection from a delivery side () to a suction side (). A valve (), in a pressure-dependent manner, closes the flow connection. A control device () adjusts/sets the speed (n) of the drive motor (), and is configured with a venting function for venting the centrifugal pump assembly () on operation. According to the venting function, after the detection of an air accumulation, the speed (n) of the drive motor () is automatically reduced, and subsequently the speed (n) is rapidly increased again. A method is also provided for removing an air accumulation from a centrifugal pump assembly during operation, which method includes reducing the speed (n) of the centrifugal pump assembly and subsequently rapidly increasing the speed (n) of the centrifugal pump again. 1. A centrifugal pump assembly comprising:at least one impeller;an electric drive motor driving the impeller;a back-flow channel forming a flow connection from a delivery side of the impeller to a suction side of the impeller;a valve closing, in a pressure-dependent manner, the flow connection; anda control device setting a speed of the drive motor, said control device being further configured with a venting function for venting the centrifugal pump assembly upon operation thereof, wherein the venting function includes a reducing step, after a detection of an air accumulation by way of the control device, automatically reducing the speed of the drive motor and includes an increasing step, subsequently rapidly increasing the speed of the drive motor again.2. A centrifugal pump assembly according to claim 1 , wherein the control device is further configured such that the speed of the drive motor claim 1 , in the reducing step claim 1 , is reduced to such an extent that the valve of the back-flow channel opens.3. A centrifugal pump assembly according to claim 1 , ...

Automatic Initiation of Priming Sequence for Metering Pumps

Metering pumps are typically used to move a specified volume of liquid in a specified time to provide an accurate flow rate. A recurring automatic priming function is provided for operating such a metering pump by running the pump for a short duration and periodically thereafter. This may maintain fluid in the pumping system such that the pump is automatically in a primed configuration. 1. A method for automatically priming a pump comprising the steps of:operating the pump in a priming mode at a priming capacity for a duration period;starting a recurrence timer;operating the pump in its normal operational mode; andoperating the pump in the priming mode for the duration period upon expiration of the recurrence timer.2. The method of claim 1 , further comprising resetting the recurrence timer if the pump pumps fluid during its normal operational mode.3. The method of claim 1 , wherein the duration period is selectively adjustable by a duration period timer.4. The method of claim 1 , wherein a recurrence period measured by the recurrence timer is selectively adjustable.5. The method of claim 1 , wherein the priming capacity comprises an elevated pump capacity that is higher than the pump capacity in its normal operational mode.6. The method of claim 5 , wherein the priming capacity comprises a maximum pump capacity of the pump.7. The method of claim 1 , wherein the pump runs at a selected stroke speed during the duration period.8. The method of claim 1 , wherein the pump runs at a selected stroke length during the duration period.9. The method of claim 1 , further comprising operating the pump in the priming mode when an unprimed condition is sensed.10. The method of claim 1 , further comprising operating the pump in the priming mode until a primed condition is sensed.11. The method of claim 1 , further comprising operating the pump in the priming mode when the pump powers on.12. The method of claim 1 , further comprising selectively enabling the priming mode.13. A ...

Self-Priming Dedicated Water Feature Pump

A self-priming dedicated water feature pump is provided. The water feature pump can include a strainer housing connected to a pump housing. The strainer housing can include a reservoir for allowing water to enter the strainer housing so that the pump can self-prime. The strainer housing can also include a post installed within the reservoir. The post can function to prevent a strainer basket from being installed in the strainer housing. The post can be of sufficient volume and/or geometry to allow enough water to enter the strainer housing so that the water feature pump can self-prime while also preventing a strainer basket from being installed in the strainer housing. 1. A dedicated water feature pump comprising:a base;a strainer housing connected to the base and extending upwardly with respect to the base, the strainer housing defining a reservoir for receiving water through an inlet and an inner wall;a pump housing connected to the strainer housing and extending rearwardly with respect to the strainer housing;a prevention means installed in the reservoir for preventing installation of a strainer basket in the strainer housing;wherein the strainer housing allows the pump to self-prime by preventing a strainer basket from being installed in the strainer housing.2. The dedicated water feature pump of claim 1 , wherein the prevention means is a post.3. The dedicated water feature pump of claim 2 , comprising a cap installed on the post to further prevent installation of a strainer basket in the strainer housing.4. The dedicated water feature pump of claim 1 , comprising a hole between the strainer housing and the pump housing to allow water to flow from the strainer housing to the pump housing.5. The dedicated water feature pump of in combination with a water feature claim 4 , said water feature being one of a spa jets claim 4 , waterfall/sheer fall claim 4 , rain curtain claim 4 , fountain claim 4 , deck jet claim 4 , laminar jet claim 4 , bubbler claim 4 , scupper ...

MULTI-STAGE, SELF-PRIMING CENTRIFUGAL PUMP ASSEMBLY

A multi-stage, self-priming centrifugal pump assembly includes at least two pump stages () which are consecutive in a main flow direction (), and a backflow channel () which lies parallel to at least one a pump stage (). The backflow channel () runs out downstream of the first or a further pump stage (), in the main flow direction (). 1. A multi-stage , self-priming centrifugal pump assembly comprising:at least two pump stages which are consecutive in the a main flow direction and which include a diffuser; and{'b': '4', 'a backflow channel which lies parallel to at least one a pump stage and which runs out downstream of the first or a further pump stage (-) in the main flow direction, wherein the backflow channel runs out downstream of the diffuser of the at least one pump stage.'}2. A centrifugal pump assembly according to claim 1 , wherein the backflow channel runs out downstream of the diffuser of a first pump stage of the at least two pump stages claim 1 , in the main flow direction.3. A centrifugal pump assembly according to claim 1 , further comprising a gas separator is arranged at the exit side of the at least second pump stage.4. A centrifugal pump assembly according to claim 3 , wherein the gas separator is formed by a housing-fixed claim 3 , tubular body which connects onto the diffuser of one of the at least two pump stages and it's the gas separator comprises a wall that comprises at least one recess fluidically connected to the backflow channel.5. A centrifugal pump assembly according to claim 3 , further comprising a buffer chamber arranged between two pump stages of the at least two pump stages which follow the first pump stage in the main flow direction claim 3 , and downstream of the gas separator in the main flow direction.6. A centrifugal pump assembly according to claim 5 , wherein the buffer chamber is formed by a housing-fixed claim 5 , tubular body claim 5 , a housing wall surrounding the tubular body and spaced at a distance and an annular ...

Self-priming centrifugal pump

A pump with high performance and cleanability includes a casing having a smaller volute and a larger volute; a space between an outer circumference of an impeller and a starting end of the smaller volute being greater than that of the larger volute, generating a circulating flow of self-priming water from the smaller volute to the larger volute; and a diffusing part of the larger volute being formed into an upright, cylindrical self-priming water separating chamber guiding the self-priming water from the smaller volute to flow in for air-water separation. An inner circumference part of the casing is formed concentric with the outer circumference of the impeller with a predetermined space therebetween; defining members are protrusively disposed on the inner circumference part of the casing so as to define the shapes of the two volutes; and the self-priming water separating chamber is made attachable to and detachable from the casing.

PUMP CASING WITH ADAPTIVE PRIMER AND IMPELLER

Technologies are generally described for pump devices that include an adaptive cutwater and impeller arrangement. The power end of the pump device can be coupled to a motor to drive an impeller. The primer plate and impeller of the pump device are removable from the pump casing such that the primer plate and impeller can be replaced or modified as desired for different applications. In some examples, the pump casing includes a primer plate that is removable from the pump casing, where the primer plate includes a discharge cutwater tongue that is specifically spaced and sized to service an impeller of a desired design. The discharge cutwater tongue and impellers in the pump device may thus be serviced for replacement parts, as well as to modify the pump device for different fluids of different fluids properties or hydraulic requirements as may be needed in different applications. 1. A pump apparatus comprising:a pump casing having a power end mounting face;a primer plate with a discharge cutwater tongue, wherein the primer plate is configured to be removably placed in the pump casing about the power end mounting face; andan impeller that is configured to be removably placed in cooperative alignment with the primer plate about the discharge cutwater tongue,wherein the impeller is configured to engage a power end when coupled to the power end mounting face, and wherein the discharge cutwater tongue is paired to the impeller for a priming operation of the pump.2. The pump apparatus of claim 1 , further comprising a seal ring positioned between the primer plate and the pump casing.3. The pump apparatus of claim 1 , further comprising:an inner ridge formed along an interior portion of the pump casing about the power end mounting face; anda seal ring configured to be placed along the inner ridge of the pump casing to seal contact points between the primer plate and the pump casing.4. The pump apparatus of claim 1 , further comprising mounting studs configured to affix the ...

ONLINE MONITORING SYSTEM

The present invention discloses an online monitoring system, comprising a self-priming pump, a first sample pipe and a container containing a sample to be tested, and the first sample pipe connects the self-priming pump and the container, and the self-priming pump transports the ample to be tested in the container to the first sample pipe; the online monitoring system further comprises a fluid supplementation device connected with the first sample pipe, and a default level value is preset in the fluid supplementation device, and the fluid supplementation device monitors a level of the sample to be tested in the first sample pipe, and extracts the sample to be tested from the container to supplement to the first sample pipe as the level value of the sample to be tested in the first sample pipe is lower than the default level value. 1. An online monitoring system , comprising a self-priming pump , a first sample pipe and a container containing a sample to be tested , and the first sample pipe connects the self-priming pump and the container , and the self-priming pump transports the ample to be tested in the container to the first sample pipe , whereinthe online monitoring system further comprises a fluid supplementation device connected with the first sample pipe, and a default level value is preset in the fluid supplementation device, and the fluid supplementation device monitors a level of the sample to be tested in the first sample pipe, and extracts the sample to be tested from the container to supplement to the first sample pipe as the level value of the sample to be tested in the first sample pipe is lower than the default level value.2. The online monitoring system according to claim 1 , whereinthe fluid supplementation device comprises a level sensing switch, a pump unit and a fluid supplementation pipe, and the level sensing switch is electrically connected to both the first sample pipe and the pump unit, and the pump unit extracts the sample to be tested ...

CENTRIFUGAL PUMP WITH SELF-CLEANING WEAR PLATE

A centrifugal pump having an impeller assembly within a pump housing and a wear plate positioned in confronting relationship with the impeller assembly. The wear plate includes an annular wear plate portion defining an impeller side that confronts the impeller and further defines an annular portion defining an eye formed generally centrally and has a center point that is substantially aligned with a rotational axis of the impeller. The eye includes a plurality of peripheral notches separated by tooth-like spacer gaps. At least one protrusion extends from the eye towards the impeller at a predetermined angle. Inner and outer radial grooves are formed in the wear plate surface that confronts the impeller. 1. A centrifugal pump , comprisinga) a pump housing;b) an impeller assembly mounted to said pump housing; i) an annular wear plate portion defining an impeller side that confronts said impeller when said wear plate is mounted within said pump housing;', 'ii) said annular portion defining an eye formed generally centrally in said portion and is substantially aligned with a rotational axis of said impeller; and', 'iii) at least one protrusion extending from said eye toward said impeller., 'c) a wear plate mounted within said housing in a confronting relationship with an impeller forming part of said impeller assembly, said wear plate comprising2. The pump of wherein said notches are wider in dimension than said tooth-like gaps.3. The centrifugal pump of said wherein said protrusion includes a prong extending at an angle from a mounting segment formed on said wear plate portion.4. The centrifugal pump of wherein said prong extends at an angle of substantially 45° with respect to a plane defined by said wear plate portion.5. The centrifugal pump of wherein said prong is welded to said mounting segment.6. The centrifugal pump of wherein said prong and mounting segment are integrally formed with said wear plate portion.7. The centrifugal pump of wherein said wear plate is ...

Pump

A pump includes an electric motor that is mounted in a motor compartment, a rotor that is mounted in a pump chamber and coaxial to a driven shaft of the motor and driven by the motor, a pump inlet nozzle, and a pump discharge nozzle, wherein the pump is enclosed by a housing and wherein the motor compartment is connected to a surrounding atmosphere by a ventilation channel. The ventilation channel is arranged parallel to the shaft of the motor in the housing and is guided from a lower end of the housing in the region of the pump inlet nozzle up to a passage opening that is formed directly underneath a motor bearing bracket.

Pumping System

A pumping system including a pumping chamber with a fluid sensor having a cylindrical shaft extending into the priming chamber. The sensor has a sensing dome on an end of a cylindrical shaft extending into the priming chamber, with the dome having a vertical base having a diameter less than the cylindrical shaft diameter. The sensor signals a controller whether liquid is present based on an algorithm with settings for dampening of the electromagnetic field, conductance of the electric field, and/or permittivity of the magnetic field using settings which correlate to the fluid environment. The controller controls operation of the pump and primer based on the sensor signal.

CENTRIFUGAL PUMP WITH HIGH AND LOW INLET CONFIGURATIONS

A reconfigurable pump includes a housing with inlet and outlet openings. An inlet adapter is mounted on the housing and includes an inlet passage communicating with the inlet opening. The inlet adapter is removably mounted on the housing and can be removed and repositioned for reconfiguring the pump between low-inlet and high-inlet configurations. In a low-inlet configuration the inlet passage is generally aligned with an impeller rotatably mounted in the housing. A check valve comprising a flapper valve is provided in the low-inlet configuration and prevents backflow. The flapper valve is removable for configuration in a high-inlet configuration with the inlet passage located generally above the impeller level. The inlet adapter can readily be repositioned from outside the pump housing between its low-inlet anti-inlet configurations. 1. A reconfigurable pump with low-inlet and high-inlet configurations , which pump comprises:a housing with an exterior and an enclosed housing interior;an inlet opening from said housing exterior to said housing interior;a discharge opening from said housing interior to said housing exterior;a rotational component rotatably mounted in said housing interior and configured for pumping fluid from said inlet opening to said discharge opening;an inlet adapter mounted on said housing in covering relation over said inlet opening and reconfigurable between a low-inlet configuration and a high-inlet configuration; andsaid rotational component generally aligning with said inlet in said low-inlet configuration and generally being located above said rotational component in said high-inlet configuration.2. The reconfigurable pump according to wherein said inlet adapter includes:first and second ends and an inlet passage located at one of said ends and communicating with said inlet opening; andsaid inlet adapter being configured for inverting between said low-inlet and said hi-inlet configurations.3. The reconfigurable pump according to claim 1 , ...

IMPELLER PUMP

A centrifugal pump comprising a motor with a shaft rotatably extending therefrom and an adapter configured to be mounted to the motor at a first side, the first side including an opening for permitting passage of the shaft therethrough. A volute housing is configured to be mounted to a second side of the adapter, the adapter and volute housing defining a pumping chamber therebetween. An impeller is configured to be disposed within the pumping chamber and rotatably coupled to the shaft via a figured fastener. The impeller includes a first wall having a figured recess defined therein, the figured recessed configured to receive the figured fastener whereby rotation of the shaft causes rotation of the impeller. 1. A centrifugal pump , comprising:a) a motor with a shaft rotatably extending therefrom;b) an adapter configured to be mounted to the motor at a first side, the first side including an opening for permitting passage of the shaft therethrough;c) a volute housing configured to be mounted to a second side of the adapter, the adapter and volute housing defining a pumping chamber therebetween; andd) an impeller configured to be disposed within the pumping chamber and rotatably coupled to the shaft via a figured fastener, wherein the impeller includes a first wall having a figured recess defined therein, the figured recessed configured to receive the figured fastener whereby rotation of the shaft causes rotation of the impeller.2. The centrifugal pump of claim 1 , and further comprising: e) a bore formed in the volute housing on the side opposite the impeller; and f) a removable cover secured to the volute housing claim 1 , the cover configured to seal the bore in the volute housing.3. The centrifugal pump of claim 2 , wherein the removable cover further comprises an inlet orifice claim 2 , the inlet orifice configured to direct fluid into the volute housing.4. The centrifugal pump of claim 1 , and further comprising: e) a bore formed in the volute housing on the side ...

SYSTEMS AND METHODS FOR ENHANCED DE-GAS SYSTEM IN A VEHICLE

Systems, methods, and non-transitory computer-readable media provide a provide an apparatus for initializing cooling circulation with a de-gas pumping system in a vehicle. The apparatus includes a de-gas tank filled with cooling liquid, disposed at a first height within a chamber of the vehicle, a pump connected with the de-gas tank via a pipe, disposed at a second height lower than the first height within the chamber, and a filling reservoir disposed in proximity to the pump and at a substantially similar height with the second height within the chamber. 1. An apparatus for initializing cooling circulation with a de-gas pumping system in a vehicle , the apparatus comprising:a de-gas tank containing cooling liquid, wherein the de-gas tank is disposed at a first height within a chamber of the vehicle;a pump connected to the de-gas tank via a pipe, wherein the pump is disposed at a second height lower than the first height within the chamber; anda filling reservoir disposed within a set distance to the pump and at a substantially similar height with the second height within the chamber.2. The apparatus of claim 1 , wherein the de-gas tank has a volume of cooling liquid that accounts for a smaller percentage of an overall volume of cooling liquid inside the vehicle compared to a system without the filling reservoir.3. The apparatus of claim 1 , wherein the pump claim 1 , in combination with an operation of the de-gas tank and the filling reservoir claim 1 , is configured to push the cooling liquid through a computing system without air pockets.4. The apparatus of claim 1 , wherein the filling reservoir is configured to remove air pockets within the pump.5. The apparatus of claim 4 , wherein the air pockets within the pump are removed by the cooling liquid being pushed into and filling the pump from the filling reservoir.6. The apparatus of claim 1 , wherein the filling reservoir and the cooling liquid are configured to prime the pump.7. The apparatus of claim 1 , ...

IMPELLER WITH AXIALLY CURVING VANE EXTENSIONS TO PREVENT AIRLOCK

A pump has a housing that includes an inlet to receive a liquid to be pumped, an outlet to provide the liquid being pumped, a pumping chamber between the inlet/outlet; and a motor shaft to rotate in the pumping chamber. The impeller is arranged on the motor shaft, includes radially curved vanes to rotate inside the pumping chamber to pump the liquid from the pumping chamber to the outlet; and includes anti-airlock vanes formed as a set of axially curving vane extensions that extend along the axis of the shaft, rotate with one part inside the pumping chamber, protrude through the inlet and rotate with another part outside the inlet for submerging in liquid to be pumped underneath the pump, draw the liquid through the inlet into the pumping chamber, and provide the liquid to the radially curved vanes to generate pressure to force entrapped air from the pumping chamber. 1. Apparatus comprising: extend along an axis of the motor shaft,', 'rotate with one part configured inside the pumping chamber,', 'protrude through the inlet and rotate with another part configured outside the inlet for submerging in any liquid to be pumped underneath the pump,', 'draw the liquid through the inlet into the pumping chamber, and', 'provide the liquid to the radially curved vanes in order to generate pressure to force any entrapped air out of the pumping chamber of the housing., 'an anti-airlock impeller configured to be mounted on a motor shaft, the anti-airlock impeller having radially curved vanes configured to rotate inside a pumping chamber of a housing of the pump to pump liquid from the pumping chamber to an outlet of the pump, the anti-airlock impeller also having anti-airlock vanes formed as a set of axially curving vane extensions configured to'}2. Apparatus according to claim 1 , wherein the set of axially curving vane extensions are defined by parametric equations in a Cartesian x claim 1 , y claim 1 , z claim 1 , coordinate system with t as a sweep parameter claim 1 , using a ...

Side-Channel Pump and Method for Operating Same

The invention relates to a side-channel pump and to a method for operating a side-channel pump in which an impeller rotates in a working chamber provided with a side channel. According to the invention, the pump is operated at an overspeed with a gas-filled working chamber in a first step. The speed is then reduced to an operating speed in order to pump a liquid. The pump according to the invention has a high suction power as a result of the overspeed, but only gas is drawn initially. 115-. (canceled)16. A method for operating a side-channel pump , said method comprisinga. providing a side-channel pump in which an impeller rotates in a working chamber provided with a side channel, the side-channel pump having an operating speed when pumping liquid and a maximum speed at which the side-channel pump can pump liquid, said operating speed being no greater than said maximum speed;b. operating said side-channel pump at an overspeed when said working chamber is filled with a gas, said overspeed being greater than said operating speed; andc. reducing the speed of said side-channel pump to said operating speed when said working chamber is filled with liquid.17. The method of claim 16 , wherein the overspeed of step b. is at least 50% greater than said operating speed.18. The method of claim 16 , applying a first driving power to said side-channel pump in step a. and applying a second driving power to said side-channel pump in step b. claim 16 , said first driving power being less than said second driving power by at least 10%.19. The method of claim 16 , wherein said operating speed is between 1200 rpm and 4000 rpm.20. The method of claim 16 , wherein the overspeed is between 3600 rpm and 7000 rpm.21. The method of claim 16 , wherein said operating speed is in the range of 1200 rpm to 2000 rpm and said overspeed is in the range of 3600 rpm to 5000 rpm.22. The method of claim 16 , wherein said operating speed is in the range of 2000 rpm to 4000 rpm and said overspeed is in ...

ANTI-AIRLOCK VALVE ASSEMBLY

A pump, having a pump housing with an impeller arranged therein, features an anti-airlock valve assembly configured with a valve housing having a passageway configured with a vent hole to allow air to bleed out of the pump housing into the atmosphere so liquid can fill the pump housing, rise and engage the impeller in order to get the pump running; and a valve ball arranged in the passageway, the valve ball configured to rest against one part of the passageway so air can pass out of the vent hole, and also configured to be light or buoyant enough to respond to the liquid filling the pump housing, float upwardly and rest against another part of the passageway so as not to allow water to escape readily from the vent hole after the liquid rises to a sufficient level and substantially engages the impeller. 1. A pump having a pump housing with an impeller arranged therein , comprising: a valve housing having a passageway configured with a vent hole to allow air to bleed out of a chamber of the pump housing into the atmosphere so liquid can fill the pump housing, rise and engage the impeller in order to get the pump running; and', 'a valve ball arranged in the valve housing, the valve ball configured to rest against one part of the valve housing so air can pass out of the vent hole, and also configured to be light or buoyant enough to respond to the liquid filling the pump housing, float upwardly and rest against another part of the valve housing so as not to allow water to escape readily from the vent hole after the liquid rises to a sufficient level and substantially engages the impeller., 'an anti-airlock valve assembly configured with'}2. A pump according to claim 1 , wherein the anti-airlock valve assembly is configured in claim 1 , or forms an integral part of claim 1 , the pump housing.3. A pump according to claim 1 , wherein the anti-airlock valve assembly is configured on the discharge side of the pump.4. A pump according to claim 1 , wherein the anti-airlock ...

BILGE PUMP HAVING CONCEALED AIR-LOCK VENT

The pump has a pump body having a pump body portion with a vent hole to allow air entrapped in the pump body to bleed out to atmosphere and allow liquid to fill the pump body in order to get the pump running, and also includes a tab receiving portion having a rim defining an opening; and a pump/strainer assembly that includes a base with slots/openings formed therein to receive and strain liquid to be pumped, and includes a strainer retaining tab with a raised rim to be received in the opening of the tab receiving portion and circumferentially engaged by the rim of the opening to hold together the pump/strainer assembly and the pump body. The at least one tab receiving portion and the strainer retaining tab are dimensioned to conceal the vent hole and substantially prevent the liquid from bleeding through the vent hole and squirting outside of the pump body when the pump is running. 1. A pump , including a bilge pump , comprising:a pump body having a pump body portion configured with a vent hole formed therein to allow air entrapped in the pump body to bleed out to atmosphere and allow liquid to fill the pump body in order to get the pump running, and also having at least one tab receiving portion configured with a rim defining or forming an opening; anda pump/strainer assembly having a base configured with one or more slots/openings formed therein to receive and strain liquid to be pumped, and also having at least one strainer retaining tab with a raised rim configured to be received in the opening of the at least one tab receiving portion and circumferentially engaged by the rim defining the opening to hold together the pump/strainer assembly and the pump body, the at least one tab receiving portion and the at least one strainer retaining tab also configured and dimensioned to conceal the vent hole and substantially prevent the liquid from bleeding through the vent hole and squirting outside of the pump body when the pump is running.2. A pump according to claim 1 ...

SELF-PRIMING ASSEMBLY FOR USE IN A MULTI-STAGE PUMP

A self-priming assembly for a multi-stage pump is provided. The self-priming assembly can have a first diffuser, a second diffuser, and an impeller. The first and second diffusers each include a central portion, a diffuser axis, an arcuate channel within the central portion, and a passage extending through the central portion. The first diffuser and the second diffuser are configured to be combined and receive the impeller therebetween with the first diffuser axis, the second diffuser axis, and the impeller axis aligned. 1. A self-priming assembly for a multi-stage pump , the self-priming assembly comprising:a first diffuser with a first central portion, a first diffuser axis, a first arcuate channel within the first central portion, and a first arcuate passage extending through the first central portion, wherein the first arcuate channel and the first arcuate passage are concentric with each other about the first diffuser axis;a second diffuser with a second central portion, a second diffuser axis, a second arcuate channel within the second central portion, and a second arcuate passage extending through the second central portion, wherein the second arcuate channel and the second arcuate passage are concentric with each other about the second diffuser axis; andan impeller with a plurality of chambers radially spaced around a hub and an impeller axis;wherein the first diffuser and the second diffuser are configured to be combined and receive the impeller therebetween with the first diffuser axis, the second diffuser axis, and the impeller axis aligned.2. The self-priming assembly of claim 1 , wherein the first diffuser and the second diffuser are substantially identical.3. The self-priming assembly of claim 1 , wherein the impeller has an axle and the first diffuser and the second diffuser each have a through-hole configured to receive the axle.4. The self-priming assembly of claim 1 , wherein the first arcuate passage is located between the first arcuate channel ...

Fuel Pump and Fuel Supply System Using the Same

A fuel pump includes a motor having an armature which rotates about an axis, the motor also having a stator which circumferentially surrounds the armature such that a fuel passage is defined between the armature and the stator, whereby rotation of the armature induces a circumferential flow of fuel within the fuel passage; a pumping arrangement which is rotated by the armature and which pumps fuel from a first inlet to a first; a second inlet which introduces fuel into the fuel passage; a second outlet which discharges fuel from the fuel passage; and a flow impedance member in the fuel passage which impedes the circumferential flow of fuel within the fuel passage, thereby generating a pressure gradient across opposing sides of the flow impedance member such that fuel entering the fuel passage is pumped to the second outlet. 1. A fuel pump comprising:a motor having an armature which rotates about an axis, said motor also having a stator which circumferentially surrounds said armature such that a fuel passage is defined radially between said armature and said stator, whereby rotation of said armature induces a circumferential flow of fuel within said fuel passage;a pumping arrangement which is rotated by said armature and which pumps fuel from a first inlet of said fuel pump to a first outlet of said fuel pump;a second inlet which introduces fuel into said fuel passage;a second outlet which discharges fuel from said fuel passage; anda flow impedance member in said fuel passage which impedes said circumferential flow of fuel within said fuel passage, thereby generating a pressure gradient across opposing sides of said flow impedance member within said fuel passage such that fuel entering said fuel passage through said second inlet at a low pressure side of said flow impedance member is pumped through said fuel passage to said second outlet at a high pressure side of said flow impedance member.2. A fuel pump as in claim 1 , further comprising an upper flow barrier ...

Liquid pump and rankine cycle device

A liquid pump includes: a casing; a feed pipe bringing liquid from outside the casing to inside the casing; a pump mechanism provided in the casing and including a suction hole for sucking in the liquid and a discharge hole for discharging the liquid sucked in via the suction hole; a suction space positioned in the casing on a suction-hole inlet side and making a flow path formed by the feed pipe and the suction hole communicate with each other; and a discharge space positioned on a discharge-hole outlet side in the casing and communicating with the discharge hole. The suction space includes a gas accumulation area that is positioned above a center of an opening at casing-side end of the feed pipe, when viewed vertically and that accumulates gas brought into the casing through the feed pipe together with the liquid to separate the gas from the liquid.

Priming and Lubricating System and Method for Marine Pump Impellers

A marine pumping system includes a pump for providing a cooling fluid to, for example, an internal combustion engine. The pumping system includes a pump, a reservoir separate from and upstream of the pump for storing cooling fluid, and plumbing downstream of the pump configured to maintain cooling fluid in the reservoir during non-operation of the pump. The reservoir and plumbing configuration minimize dry run time of the pump.

Inlet Sieve for Self-Priming Floating Pumps

An inlet sieve for a self-priming floating pump features a bottom wall that is carried in a position that underlies the inlet of the self-priming floating pump at a distance therebelow with the inlet of the pump aligned with an axis that passes through the bottom wall of the sieve. A perforated outer wall of the sieve stands upward from a top side of the bottom wall and extends about the axis. The bottom wall features an outer area that spans inwardly from the perforated outer wall toward the axis, and a protuberance that bulges upwardly from the outer area to an apex of the protuberance that is situated at the axis. Water flowing inwardly toward the protuberance from different radial directions is directed smoothly upward into the inlet of the pump with minimal turbulence in order to optimize the performance of the pump. 1. An inlet sieve for a self-priming floating pump , the inlet sieve comprising:a bottom wall; anda perforated outer wall upstanding from a topside the bottom wall;wherein the bottom wall comprises an outer area spanning inwardly from the perforated outer wall toward the axis, and a protuberance that bulges upwardly from the outer area on an axis that passes through said bottom wall at a position spaced across said outer area from the perforated outer wall.2. In combination with a self-priming floating pump having a pump body and an inlet opening at an underside thereof that communicates with an impeller chamber of the pump to draw liquid into and through the impeller chamber under operation of the pump when floating in a body of said liquid , an inlet sieve comprising:a bottom wall; anda perforated outer wall upstanding from a topside the bottom wall and extending about an axis that passes through the bottom wall;wherein the inlet sieve is connectable to the pump in a position placing a bottom wall beneath the inlet of the pump at a distance therebelow with the inlet of the pump aligned with the axis, whereupon openings in said perforated outer ...

SELF-PRIMING CENTRIFUGAL PUMP

A self-priming, centrifugal pump comprising a first housing part having a front wall with an inlet, a second housing part having an outlet, an impeller rotatably arranged in the second housing part and a pump screw rotatably arranged in the first housing part, connected to the impeller and comprising a center body around which a helical blade is arranged for feeding the impeller with any gas that is present in the liquid, wherein the center body is arranged at a distance from a side of the front wall that faces the center body, such that a channel with a width of at least 12 mm is formed between the center body and the side of the front wall that faces the center body. 1. A self-priming , centrifugal pump comprisinga first housing part having a front wall with an inlet for receiving liquid,a second housing part having an outlet for expelling the liquid, the first housing part being connected to the second housing part for enabling the liquid to flow from the first housing part and into the second housing part,an impeller rotatably arranged in the second housing part about a central axis for pumping the liquid from the inlet to the outlet when the impeller is rotated,a pump screw rotatably arranged in the first housing part about the central axis, connected to the impeller and comprising a center body around which a helical blade is arranged for feeding the impeller with any gas that is present in the liquid, whereinthe helical blade comprises an end blade that extends in a direction towards the front wall that faces the helical blade,the helical blade having a first lead angle and the end blade having a second lead angle, the second lead angle being greater than the first lead angle and smaller than 90°.2. A centrifugal pump according to claim 1 , wherein the center body is arranged at a distance from a side of the front wall that faces the center body such that a channel with a width of at least 12 mm is formed between the center body and the side of the front wall ...

SELF-PRIMING CENTRIFUGAL PUMP

A self-priming, centrifugal pump comprising a first housing part having a front wall with an inlet, a second housing part having an outlet, an impeller rotatably arranged in the second housing part and a pump screw rotatably arranged in the first housing part, connected to the impeller and comprising a center body around which a helical blade is arranged for feeding the impeller with any gas that is present in the liquid, wherein the center body is arranged at a distance from a side of the front wall that faces the center body, such that a channel with a width of at least 12 mm is formed between the center body and the side of the front wall that faces the center body. 1. A self-priming , centrifugal pump comprisinga first housing part having a front wall with an inlet for receiving liquid,a second housing part having an outlet for expelling the liquid, the first housing part being connected to the second housing part for enabling the liquid to flow from the first housing part and into the second housing part,an impeller rotatably arranged in the second housing part about a central axis for pumping the liquid from the inlet to the outlet when the impeller is rotated,a pump screw rotatably arranged in the first housing part about the central axis, connected to the impeller and comprising a center body around which a helical blade is arranged for feeding the impeller with any gas that is present in the liquid, whereinthe center body is arranged at a distance from a side of the front wall that faces the center body, such that a channel with a width of at least 12 mm is formed between the center body and the side of the front wall that faces the center body.2. A centrifugal pump according to claim 1 , wherein the channel has a width of at least 16 mm.3. A centrifugal pump according to claim 1 , wherein the channel has a width of at least 20 mm.4. A centrifugal pump according to claim 1 , wherein the channel extends from the side of the front wall that faces the center ...

CENTRIFUGAL PUMP

A centrifugal pump (), with one or more pumping stages, includes a pressure controlled valve () inside the pump () for supporting self-priming, the pressure controlled valve (). The pressure controlled valve () includes a pretensioned leaf spring () and a valve seat (). The leaf spring () has an opened position and a closed position. In the open position the leaf spring () is distanced from the valve seat (). In the closed position the leaf spring () closes the valve seat (). The leaf spring () and valve seat () are arranged for soft closing. 1. A centrifugal pump comprising:one or more pumping stages;a pressure controlled valve inside the pump for supporting self-priming, the valve comprising a pretensioned leaf spring and a valve seat, the leaf spring having an opened position, in which the leaf spring is distanced from the valve seat and a closed position, in which the leaf spring closes the valve seat, the leaf spring and valve seat being arranged for dampened closing.2. A centrifugal pump according claim 1 , wherein the leaf spring has a preclosed position claim 1 , in which the valve is partially closed.3. A centrifugal pump according claim 2 , wherein the leaf spring has at least one inherent stable position claim 2 , which is the opened position and is forced into the preclosed and the closed positions by fluid forces acting on the leaf spring.4. A centrifugal pump according claim 2 , wherein the leaf spring has two inherent stable positions claim 2 , the opened position and the closed position claim 2 , wherein the leaf spring is held in the closed position by fluid forces.5. A centrifugal pump according claim 1 , wherein the leaf spring has a semi-stable position which is the pre-closed position.6. A centrifugal pump according claim 1 , further comprising a leaf spring support claim 1 , wherein the valve seat is arranged off-center with respect to the leaf spring support.7. A centrifugal pump according claim 2 , wherein the valve seat has a stopping seat ...

Pump

A pump has a main body. An assembling part is formed in the main body and has an assembling chamber. A mounting part is formed in the assembling chamber and has a discharging chamber. An influent hole and an effluent hole are respectively defined through an inner surface of the discharging chamber. A storage hole is defined through the assembling chamber and communicates with the effluent hole. A mounting cover is mounted on the mounting part. A motor is mounted on the main body. An impeller is located in the discharging chamber and connected with the motor. A covering assembly is mounted on the assembling part and has a storage chamber that communicates with the storage hole. When working fluid passes through the effluent hole, some of the working fluid enters the storage chamber via the storage hole, eliminating the need to additionally process the mounting cover.

PUMP

A pump has a main body. An assembling part is formed in the main body and has an assembling chamber. A mounting part is formed in the assembling chamber and has a discharging chamber. An influent hole and an effluent hole are respectively defined through an inner surface of the discharging chamber. A storage hole is defined through the assembling chamber and communicates with the effluent hole. A mounting cover is mounted on the mounting part. A motor is mounted on the main body. An impeller is located in the discharging chamber and connected with the motor. A covering assembly is mounted on the assembling part and has a storage chamber that communicates with the storage hole. When working fluid passes through the effluent hole, some of the working fluid enters the storage chamber via the storage hole, eliminating the need to additionally process the mounting cover.

VERTICAL SELF-PRIMING PUMP

The present invention claims a vertical self-priming pump which comprises a pump body, a motor and a medium backflow blocking device, the medium backflow blocking device comprises a static ring and a moving ring which are vertically and oppositely arranged, and an elastic supporting sleeve; the moving ring is embedded on the upper surface of the impeller, the elastic supporting sleeve is fixed on the upper surface of the flow guide body, and the static ring is embedded on the lower surface of an elastic supporting ring. During normal working, the elastic supporting sleeve of the present invention in the medium backflow blocking device generates a downward deformation under the action of liquid medium pressure, thus the moving ring and the static ring closely contact with each other and block the backflow gap channel, and the pump efficiency is improved. 1. A vertical self-priming pump , comprisinga pump body, wherein an inner cavity of the pump body is divided into a gas-liquid separation chamber and a liquid storage chamber through a middle partition plate that is provided with an axial inlet opening, and the gas-liquid separation chamber is above the liquid storage chamber; a flow guide body is fixed on an upper surface of the middle partition plate; the flow guide body is provided with an axial through hole and a radial flow guide hole that is in communication with the axial through hole, and the gas-liquid separation chamber is in communication with the liquid storage chamber through the axial inlet opening and the radial flow guide hole on the flow guide body;a motor, which is fixed on the top of the pump body for driving a pump shaft to rotate, and the pump shaft downwardly penetrates into the inner cavity of the pump body, and an impeller that is arranged in the axial through hole of the flow guide body is fixed on a lower end of the pump shaft; a backflow gap channel is formed between an outer circumferential surface of the impeller and an inner wall of the ...

AIR RELEASE VALVE

A release valve for a self-priming pump includes a housing, a valve member, an exhaust outlet, a guide stem, a spring, and a bellows. The valve is positioned in a valve opening in the housing and is movable between an open and a closed position. The open position permits the travel of air and fluid through the opening. The closed position closes the valve opening. The valve plug is positioned in the valve opening responsive to pressure in the flow passageway of the housing. The guide stem is coupled to the valve plug and the spring is coupled to the guide stem. The bellows surrounds the spring. 1. A release valve for a self-priming pump having a pumping chamber comprising:a housing having a flow passageway extending therein, said flow passageway having at least one flow passageway inlet for coupling with the pumping chamber;a pressure responsive valve member positioned in at least one valve opening in the housing and being movable between an open and a closed position, with the open position permitting the travel of air and fluid through the opening and the closed position closing the at least one valve opening, with the valve member being movable between a first closed position in which a surface of the valve member blocks the at least one valve opening, a second open position in which flow is permitted through the at least one valve opening, and a third closed position where a surface of the valve member blocks the at least one valve opening;a valve outlet coupled to the housing positioned downstream of the at least one valve opening, with flow moving through the valve outlet when the at least one valve opening is in the second open position;a guide stem coupled to the valve member for assisting in aligning the valve member with the at least one valve opening and permitting movement of the valve member up and down;wherein the valve is operable between a first position where an upper surface of the valve member abuts a lower surface of the at least one valve ...

HEMISPHERICAL ENTRAINMENT-TYPE HIGH-FLOW SELF-PRIMING CENTRIFUGAL PUMP

A hemispherical entrainment-type high-flow self-priming centrifugal pump includes a hemispherical entrainment system, a pump body and a pump inlet pipe. The hemispherical entrainment system is disposed above the pump body. The hemispherical entrainment system comprises four layers of entrainment cavities, including a spherical entrainment interior cavity, a primary entrainment cavity, a secondary entrainment cavity and a tertiary entrainment cavity. The spherical entrainment interior cavity is a double circular pipeline that ascends in a spiral overlapping manner to wrap a hemispherical surface, and improves the entrainment capacity, while increasing the entrainment area. The primary entrainment cavity is allowed to be in communication with the secondary entrainment cavity and the tertiary entrainment cavity by upward sliding of a sliding check core. The secondary entrainment cavity entrains the gas in the pump inlet pipe, and the primary entrainment cavity entrains the gas in a pump cavity. 1. A hemispherical entrainment-type high-flow self-priming centrifugal pump , comprising a hemispherical entrainment system , a pump body and a pump inlet pipe , wherein the hemispherical entrainment system is disposed above the pump body and comprises an elliptical cross-section pipeline , a housing , a primary separation plate , a secondary separation plate , a spherical entrainment upper cover plate , a spherical entrainment lower cover plate and a sliding check core , wherein the elliptical cross-section pipeline is inclined upward at a certain angle and has a top end connected to a bottom end of the housing , the housing is vertically arranged , the secondary separation plate is disposed in the housing and has a periphery connected to an inner wall of the housing , and the primary separation plate is disposed at a top end of the housing , each of the primary separation plate and the secondary separation plate is provided with a through-hole at a center thereof , and the ...

Air eliminating device

Self-priming dedicated water feature pump

A self-priming dedicated water feature pump is provided. The water feature pump can include a strainer housing connected to a pump housing. The strainer housing can include a reservoir for allowing water to enter the strainer housing so that the pump can self-prime. The strainer housing can also include a post installed within the reservoir. The post can function to prevent a strainer basket from being installed in the strainer housing. The post can be of sufficient volume and/or geometry to allow enough water to enter the strainer housing so that the water feature pump can self-prime while also preventing a strainer basket from being installed in the strainer housing.

Improved impeller for self-primimg pump, assembly structure thereof and self-primimg pump containing the same

본 발명은 자흡식 펌프용 개량 임펠러 및 그 조립 구조체와 이를 포함하는 자흡식 펌프에 관한 것으로서, The present invention relates to an improved impeller for a self-priming pump and an assembly structure thereof and a self-priming pump including the same. 본 발명에 따른 임펠러는 축공을 포함하는 코어부, 코어부의 외주연으로부터 연장되는 직선상의 다수의 방사상 제1 배플에 의해 내주연이 연결되는 제1 림 및 제1 림과 동일 중심을 가지며 다수의 직선상 제1 배플 형성면의 상하면 중 적어도 일면에 각각 당접하여 위치하고 제1 림보다 작은 직경의 제2 림으로 구성되며, The impeller according to the present invention has the same center as the core portion including the axial hole, the first rim and the first rim connected to the inner circumference by a plurality of radial first baffles in a straight line extending from the outer circumference of the core portion, and a plurality of straight lines. It consists of a second rim having a diameter smaller than the first rim is located in contact with at least one of the upper and lower surfaces of the upper surface of the first baffle, 본 발명에 따른 자흡식 펌프는 흡입 개구 및/또는 토출 개구가 선택적으로 형성되어 있는 제1 및 제2 케이싱과, 본 발명에 따른 임펠러와, 하나 또는 복수의 환형 부재와, 임펠러 구동 수단으로 구성되고, The self-priming pump according to the present invention comprises first and second casings in which the suction opening and / or the discharge opening are selectively formed, the impeller according to the present invention, one or a plurality of annular members, and the impeller driving means. , 본 발명에 따른 자흡식 펌프용 개량 임펠러는 비폐색형 또는 세미폐색형으로서 회전시 강한 흡입압 및 토출압을 발생시킴과 아울러, 유체 중에 이물질이 존재하는 경우에도 폐색의 우려가 거의 없고, 이 임페러를 적용한 본 발명의 펌프 조립 구조체와 구동수단으로 이루어지는 직결식 펌프는 소음과 진동이 적으며, 비교적 간단한 구성으로 상대적으로 큰 양정 및 현격히 증대된 토출압 및 토출 유량을 나타내며, 유지보수 시 배관의 해체 없이도 펌프 내부의 점검이 가능하고, 초기 작동 시 마중물의 도입이 불필요하여 사용이 간편하고 신뢰성이 높다. The improved impeller for the self-priming pump according to the present invention is a non-closed or semi-closed type, which generates a strong suction pressure and a discharge pressure during rotation, and there is almost no fear of blockage even when foreign matter is present in the fluid. Direct pump consisting of the pump assembly structure and the driving means of the ...

터빈 펌프

본 발명의 베인개방형 재생터빈 펌프(20)는 하우징(52), 상기 하우징(52)에 회전가능하도록 지지되어 다수개의 패들과 같은 베인 개방형 베인(82)을 갖는 임펠러(54), 상기 하우징(52) 내에서 임펠러(54)의 외주면과 베인(82)을 갖는 임펠러(54), 상기 하우징(52)내에서 임펠러(54)의 외주면과 베인(82) 주위를 에워싸는 환형 펌프채널(90), 상기 펌프채널(90)내에서 유입구(104)와 배출구(108) 사이에 형성된 스트리퍼(98) (100) 및, 상기 유입구와 배출구(104) (108)사이의 중간지점에서 임펠러(54), 양측면상의 펌프채널(90)내에서 하우징(52)상에 형성된 한쌍의 보스(110) (112)를 포함한다. 상기 각각의 보스(110) (112)는 펌프채널(90)의 방사상 내측 일부분을 차단하는 모서리(114) (116)를 갖추어 임펠러(54)의 회전방향으로 일정속도 성분을 갖고 상기 내측 일부분에서 관성적으로 분리된 기체를 차단한다. 한쌍의 노치(118) (120)가 상기 보스(110) (112)의 각각에 인접한 하우징(52)내에 형성되어 기체 수집챔버(92)와 펌프채널(90)의 방사상 최대측단부를 연통된다. 상기 차단된 기체의 운동량이 상기 기체흐름을 노치(118) (120)를 통하여 기체 수집챔버(92)로 유도시킴으로서 펌프채널(90)로 부터 기체의 배출동작을 최대화한다.

Rotary vane vacuum pump

본 고안은 소방펌프(1)와, 소방펌프(1)와 연결파이프(4)로 연결되며 중간에 설치된 체크밸브(5)와 체크밸브(5)와 진공오일탱크(8)의 파이프가 T형 분기구(6)에서 함께 진공펌프(2)의 흡입구에 연결되며 상기 진공펌프(2)는 하부에 토출구(2-5)를 구비하고 내부에 케이싱(2-1)과 베인(2-3)과 편심로터(2-2)를 갖추도록 하는 소방펌프(1)의 자체 양수를 위하여 이용되고 있는 편심 로터리 베인식 진공펌프를 사용하는 자흡장치에 있어서, 상기 진공펌프(2)와 체크밸브(5)사이에 충분한 크기의 보조잔수탱크(9)를 설치하고 소방펌프(1)에서 유입된 물이 진공펌프(2)로 들어가지 못하도록 잔수진입관(9-6)을 보조잔수탱크(9) 하부로 연장하고, 공기가 진공펌프(2)로 빨려 들어가는 배관의 전단부에는 합성수지 등의 부구(9-2)와 부구안내판(9-1)을 설치하여 물이 보조잔수탱크(9)에 충만되었을시에도 진공펌프(2)로 유입되지 못하도록 하며, 상기 보조잔수탱크(9)의 상부와 하부에는 각각 배수밸브(9-4)를 두 개로 설치하여 진공펌프가 작동되는 동안만 닫혀질 수 있도록, 진공펌프 스위치와 자동으로 개폐될 수 있는 배수밸브 작동링크(9-5)를 장착하고, 상기 진공 오일탱크(8)는 상부에 에어벤트(8-4)를 충분히 크게 설치하고 진공펌프(2)로부터 토출된 공기와 기름이 분리될 수 있는 토출구(2-5)를 진공 오일탱크(8)의 일측상부에 연결장착하여 공기는 에어벤트(8-4)밖으로 배출되고 진공오일은 진공 오일탱크(8)에 남게되어 순환하게 되도록 하는 편심로터리 베인식 진공펌프를 이용한 자흡장치에 관한 것이다. The present invention is connected to the fire pump (1), the fire pump (1) and the connection pipe (4), the pipe between the check valve (5), check valve (5) and vacuum oil tank (8) installed in the middle of the T-type It is connected to the suction port of the vacuum pump (2) together at the branch (6), the vacuum pump (2) has a discharge port (2-5) at the bottom and the casing (2-1) and vanes (2-3) inside In the self-priming device using an eccentric rotary vane type vacuum pump which is used for self pumping of a fire pump 1 having an eccentric rotor 2-2, the vacuum pump 2 and the check valve 5 A subsidiary water tank (9) of sufficient size is installed between the submersible tanks and a residual water inlet pipe (9-6) is provided to prevent the water flowing from the fire pump (1) from entering the vacuum pump (2). In the front end of the pipe where the air is sucked into the vacuum pump (2), and there is provided a float (9-2) and a float guide plate (9-1), such as synthetic resin, so that the water is filled in the auxiliary residual tank (9). Even when it is full, it does not flow into the vacuum pump (2), and two drain valves (9-4) are installed at the upper and lower portions ...

Centrifugal pump

FIELD: mechanical engineering; pumps. SUBSTANCE: impeller 1 with hub 3 is rigidly installed on shaft 4. Edges of impeller 1 at side of drive are arranged with small clearance "a" relative to rear wall 5 of pump housing. Wall 5 forms labyrinth clearance 6 with impeller 1. Labyrinth clearance 6 connects pumping chamber 2 with hub chamber 7. Coaxial impeller rigidly connected with impeller 1 is arranged in chamber 7. Coaxial impeller serves to increase rotary motion of liquid in chamber 7 and to eject liquid. Chamber 7 has peripheral hole 12 to let liquid out. Air accumulating in zone of shaft 4 comes out through clearance 10 formed by wall 20 of hub body and shaft 4. Hole 12 is located in wall 20 of hub body and is made in form of pressure nozzle. It ends in chamber 11 adjoining chamber 7 and connected with the latter with clearance 10 and is directed towards diffuser pipe 13 forming jet pump 12, 13 through which liquid, coming out of chamber 7, flows. EFFECT: improved separation of gas and liquid in pump. 3 cl, 2 dwg СЗ с ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ "” 2118 712 ' (51) МПК 13) Сл Е 040 7/04 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 95108259/06, 24.06.1994 (30) Приоритет: 16.07.1993 СН 2160/93 (46) Дата публикации: 10.09.1998 (56) Ссылки: ЕР, заявка, 0114932, кл. Е 04 0 29/22, 1984. 5У, патент, 1514241, кл. В 010 19/00, 1989. (71) Заявитель: Мартин Штеле (СН) (72) Изобретатель: Мартин Штеле (СН) (73) Патентообладатель: Мартин Штеле (СН) (54) ЦЕНТРОБЕЖНЫЙ НАСОС (57) Реферат: Рабочее колесо 1 со ступицей 3 жестко установлено на валу 4. Кромки рабочего колеса 1 со стороны привода расположены с небольшим зазором а относительно задней стенки 5 корпуса насоса. Стенка 5 образует с рабочим колесом 1 лабиринтный зазор 6. Лабиринтный зазор б соединяет насосную камеру 2'с камерой 7 ступицы. В камере 7 расположена жестко соединенная с рабочим колесом 1 коаксиальная крыльчатка для придания жидкости в ...

Self priming pump

본 발명은 흡입공과 토출공을 갖고 U자형의 이송홈이 형성된 전방케이싱과 구동모터에 결합된 후방케이싱 사이에 상기 구동모터의 축에 결합된 임펠러가 내장되어 이루어지는 자흡식 펌프에 있어서, 상기 임펠러는 내륜과 외륜, 및 상기 내륜과 외륜 사이에서 상기 내륜을 중심으로 하여 방사상으로 연장되는 다수의 회전날개를 가지되, 상기 회전날개의 회전방향쪽 일측면에는 전방에서 후방쪽으로 소정 각도 경사진 경사면이 형성되고, 후단부에는 이웃하는 회전날개와의 사이에 생성된 개방공간을 일부 가로막는 가압판이 형성되는 것을 특징으로 한다. The present invention provides a self-priming pump having an impeller coupled to a shaft of the drive motor between a front casing having a suction hole and a discharge hole having a U-shaped transfer groove and a rear casing coupled to a drive motor. Inner ring and outer ring, and between the inner ring and the outer ring has a plurality of rotary blades extending radially about the inner ring, wherein one side of the rotary blade in the direction of rotation is formed an inclined surface inclined at a predetermined angle from the front to the rear And, the rear end portion is characterized in that the pressing plate is formed to partially block the open space generated between the adjacent rotary blades. 본 발명에 따르면, 구조가 간단하면서도 유체에 대한 큰 가압력을 발생시켜 토출압, 토출량을 증대시킴과 함께 유체 흐름에 따른 마찰저항을 감소시킴으로써 펌핑효율을 향상시킬 수 있는 효과가 있다. According to the present invention, it is possible to improve the pumping efficiency by reducing the frictional resistance caused by the flow of the fluid flow while increasing the discharge pressure, the discharge amount by generating a large pressing force to the fluid with a simple structure. 펌프, 자흡, 임펠러 Pump, self-priming, impeller

卧式自吸泵

本发明公开了一种卧式自吸泵，包括泵壳、泵盖、转轴和电机，转轴上设置有至少一个增压室，每一个增压室内均安装有一个叶轮，其中一个增压室的底部设置有回流阀；泵壳上设置有一个带中心进水口和一个径向出水口，带中心进水口和增压室之间设置有储液室和自吸盘，自吸盘上设置有自吸盘流道，自吸盘流道的最低边缘高于叶轮的吸入口的最高点；增压室与泵盖之间设置有出水段，泵盖上设置有气液分离器，气液分离器、出水段、增压室、储液室与泵壳之间设置有供液体回流的回流通道。本发明采用上述结构的卧式自吸泵，操作简单，通过设置自吸盘能够使泵壳内储水量增加，以供自吸过程使用，减少了进水阻力，减少了能量损失。

一种防腐外混式自吸泵

本申请涉及一种防腐外混式自吸泵，涉及水泵的技术领域，包括泵体和与泵体相连接的电机，所述的泵体上设有进水口，所述的进水口处设有单向导通件，所述的单向导通件处还设有过滤网，所述的过滤网设置在所述的单向导通件的前方。本申请具有能够降低自吸泵流道堵塞导致的电机烧机的概率的优点。

Centrifugal pump

1522468 Helico-centrifugal pumps SUNDSTRAND CORP 18 April 1977 [7 May 1976] 15987/77 Heading F1C Two diffusers 21, 22 are provided to receive the discharge from the pump impeller 16, the larger diffuser 21 being closed at low flow-rates by means of an axially slidable sleeve valve 23. Each diffuser comprises two volutes, approximately 180 degrees apart, discharging to an outlet pipe 26 in the case of the diffuser 21 and to an outlet pipe 29 in the case of the diffuser 22. The pump supplies fuel to an aircraft engine. When a high fuel flow-rate is demanded, the engine fuel control unit 48 supplies a pressure signal via a line 50 to shift a spool valve 47 to the left to admit fuel from the outlet pipe 29 to a chamber 37 to counterbalance the pressure within a chamber 36, whereupon the difference between the pressures acting on the ends 31, 30 of the sleeve valve 23 shifts the latter to the right to open the diffuser 21.

一种改进型自吸离心泵

本发明公开了一种改进型自吸离心泵，包括泵座、泵壳、泵体、防堵塞机构、调速机构和进水机构，泵座上表面一侧设有减震槽，减震槽内部滑动连接有安装座，安装座下表面固定连接有一对减震杆，有益效果是：1、通过在离心泵的进水管端口处设置防堵塞机构，利用带有缠绕杆的螺旋叶片以及交叉分布的挡板，可避免水草流向泵壳内，从而避免造成整个离心泵在使用一段时间后发生堵塞，影响排水量，同时也是对离心泵起到防护作用，避免受堵塞影响而损坏；2、通过在出水管上设置调速机构，利用顶杆下压使得管芯与出水管的管孔之间发生位移变化，从而减小或增大出水口的大小，从而可以调控水体的流速以及流量，更利于使用。

Насос для флотационной пены

1. Насос для флотационной пены, содержащий кожух насоса, имеющий впускную сторону и заднюю сторону, рабочее колесо, установленное внутри кожуха и содержащее: задний диск, имеющий: внутреннюю поверхность и внешнюю поверхность, множество сквозных вентиляционных отверстий, выполненных в заднем диске для прохождения через них газов, множество перекачивающих лопаток, каждая из которых имеет: впускные концы, прикрепленные к внутренней поверхности заднего диска и проходящие от заднего диска в радиальном направлении внутрь, входной угол и выходной угол, превышающий входной угол, при этом выходные углы оканчиваются на заднем диске, камеру деаэрации, расположенную на задней стороне кожуха насоса и имеющую: внутренний объем, внутреннюю сторону, прикрепленную к задней стороне кожуха насоса, впуск, образованный на внутренней стороне для приема газов, проходящих через множество вентиляционных отверстий, и по меньшей мере, один вентиляционный выпуск для выпуска через него газов. ! 2. Насос по п.1, в котором перекачивающие лопатки, проходящие в радиальном направлении внутрь от заднего диска, имеют свободные концы. ! 3. Насос по п.2, в котором пространство между свободными концами перекачивающих лопаток и впускной стороной кожуха насоса свободно от переднего диска. ! 4. Насос по п.1, в котором выходные углы перекачивающих лопаток составляют от около 80 до около 100°. ! 5. Насос по п.4, в котором выходные углы перекачивающих лопаток составляют около 90°. ! 6. Насос по п.1, в котором перекачивающие лопатки содержат полноразмерные основные перекачивающие лопатки и разделяющие лопатки меньшего в радиальном направлении размера. ! 7. Насос по РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2011 113 962 (13) A (51) МПК B01D 19/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2011113962/05, 11.09.2009 (71) Заявитель(и): ДжиАйДаблЮ ИНДАСТРИЗ, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: 11.09.2008 US 12/208,747 18.08.2009 US 12/543,303 ...

Variable output type centrifugal pumps

Gas separation device, its front wall and separation rotor

Centrifugal pump

FIELD: motors and pumps.SUBSTANCE: group of inventions refers to centrifugal pump (7) with one or more pump stages. Pump (7) comprises pressure-controlled valve (15) to maintain self-suction. Valve (15) comprises prestressed leaf spring (17) and valve seat (18). Leaf spring (17) has an open position and a closed position, and in the open position, leaf spring (17) is removed from valve seat (18), and in the closed position, leaf spring (17) closes valve seat (18). Leaf spring (17) and valve seat (18) are installed with a soft cover.EFFECT: inventions are directed to the creation of a self-priming centrifugal pump with a strong and cheap pressure controlled valve to maintain self-suction, not emitting the clap sound during its operation.13 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 666 034 C1 (51) МПК F04D 9/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04D 9/02 (2017.08) (21)(22) Заявка: 2017116227, 11.05.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): ГРУНДФОС ХОЛДИНГ А/С (DK) 05.09.2018 (56) Список документов, цитированных в отчете о поиске: EP 0718501 A1, 26.06.1996. EP 12.05.2016 EP 16169298.3 1013936 A1, 28.06.2000. US 2012251308 A1, 04.10.2012. RU 592 U1, 16.07.1995. SU 1333753 A1, 30.08.1987. (45) Опубликовано: 05.09.2018 Бюл. № 25 2 6 6 6 0 3 4 R U (54) ЦЕНТРОБЕЖНЫЙ НАСОС (57) Реферат: Группа изобретений относится к центробежному насосу (7) с одной или более ступенями накачки. Насос (7) содержит находящийся внутри него управляемый давлением клапан (15) для поддержания самовсасывания. Клапан (15) содержит предварительно напряженную листовую пружину (17) и посадочное место (18) клапана. Листовая пружина (17) имеет открытое положение и закрытое положение, причем в открытом положении листовая пружина (17) удалена от Стр.: 1 посадочного места (18) клапана, а в закрытом положении листовая пружина (17) закрывает посадочное место (18) клапана. ...

Super Self-priming pump

본 발명은 자흡식 펌프에 관한 것으로, 그 목적은 유체 특히 고형물이 포함된 액상식품과 같은 유체의 효과적인 이송이 가능하도록 유로가 개선된 자흡식 펌프를 제공함에 있다. 이를 위한 본 발명은 모터로 이루어진 동력부와, 상기 동력부에서 발생되는 회전력을 이용하여 임펠러를 회전시키면서 유체를 이송시키는 펌핑부로 구성된 자흡식 펌프에 있어서, 상기 펌핑부는, 상기 동력부와 함께 고정된 내측 케이싱; 상기 동력부로부터 연장되는 회전축에 결합되어 동력부의 작동에 의해 회전하는 임펠러; 및 상기 임펠러를 사이에 두고 내측 케이싱과 마주한 채로 결합되면서 임펠러가 수용되는 펌핑챔버를 형성하는 외측 케이싱;으로 구성되며, 상기 내측 케이싱 또는 외측 케이싱은, 외부의 유체가 상기 펌핑챔버로 유입되도록 하는 유입구와 유입공, 그리고 펌핑챔버의 유체가 외부로 토출될 수 있도록 하는 토출공과 토출구, 및 상기 유입공과 토출공이 형성된 케이스의 내측면에 형성된 U형상의 이송홈을 포함하되, 상기 토출공과 이송홈의 사이에서 토출공과 이송홈을 구획하는 턱의 일부 또는 전부가 제거된 것으로 형성되어 이송홈을 통해 이송되는 유체가 턱을 넘지 않고 바로 토출공으로 유입될 수 있도록 토출공과 이송홈을 연결하는 연결홈을 더 포함하는 것을 특징으로 하는 자흡식 펌프를 제공한다.

Method of and pump for handling gas-liquid mixtures

Изобретение предназначено дл  повышени  надежности насосов при перекачивании ими газожидкостных смесей с большим содержанием твердой фазы. Это достигаетс  тем, что насос снабжаетс  одним .или несколькими защитными экранами (Э) с перфорацией дл  отделени  твердой фазы, расположенным в тракте отвода газа. Газ из центральной части ротора 6 через отверсти  10 попадает в полость 11 и на лопатки 12, которые осуществл ют дополнительную сепарацию газа и очищают Э 13 за счет турбу- лизации потока у поверхности Э 13. В соответствии со способом, реализуемым в насосе, твердую фазу отдел ют от удал емого газа, а отделенную твердую фазу с помощью лопаток 12 возвращают в основной поток. 2 с. и 3 з. п. ф-лы, 8 ил.

Multi-layer circulation pump

The multistage centrifugal pump has several wheels (36) in each pump stage (34) on common shaft (40). An impeller (6) and a diffuser (38) are arranged on each wheel. The liquid to be conveyed in the axial direction parallel to the rotational axis is made to enter into the impeller of first self-priming stage. The liquid from impeller of first self-priming stage is supplied to impeller of next stage in the axial direction.

A kind of inlet type double helix spiral case self priming pump with one heart

本发明提供一种同心进水式双螺旋涡壳自吸泵，包括进水段、密封止回阀、泵壳体、叶轮、悬架、泵轴和电机；泵壳体又包括吸液口、消漩导流板、蜗壳、气水分离室、挡流板、回流口、储水室和出水段；进水段固定连接于与泵壳体一端，中间夹有密封止回阀，叶轮固定于泵轴一端放置于泵壳体内，另一端连接于电机，悬架一端固定连接于电机，另一端固定连接于泵壳体；密封止回阀为一体结构形式的软性橡胶材料加工而成；泵壳体的吸液口与叶轮吸口处于同一中心；蜗壳设由双螺旋形扩散流道；气水分离室与储水室相连通；回流口为径向回流式结构。本发明能同时控制轴向径向的平衡、运行平稳、提高工作效率、自吸快、坚固耐用、安装方便和节约成本。

Pump for washing machine

(57)【要約】 【課題】 ポンプケース内に呼び水を貯水し、ポンプケ ース内に設けた吸水口より自吸水可能な洗濯機等のポン プ装置において、永久磁石回転子を用いた電動機により ランナーを低速回転して低騒音化し、耐久性を向上し、 小型にする。 【解決手段】 ポンプケース１３に呼び水を貯水可能と し、このポンプケース１３内に吸水口２２に連通した渦 室１５を形成するランナーケーシング１４を設け、この ランナーケーシング１４内に回転自在に設けたランナー １８を電動機１９により左右回転自在に駆動する。ラン ナーケーシング１４は、呼び水と吸水口２２からの空気 を混合した気水を吐出する吐出部１６を有し、吐出部１ ６とランナー１８の中心に対して略対称形状の渦室１５ を形成し、ランナー１８の左右いずれかの回転により、 ポンプケース１３内の呼び水と吸水口２２からの空気を 気水混合し、ポンプケース１３内で気水分離して自吸水 するようにしたものである。

Centrifugal pump

A pump and a method of separating gas by such from a fluid to be pumped

The present invention relates to a centrifugal pump and a method of separating gas from solids-containing fluid which is to be pumped, in which the gas discharge passage, from the front of the impeller (6) to the gas discharge duct (8) is provided with a screen surface (13) which surface enables discharging of the gas without any solids being carried to the gas discharge system.

A micro-bubble creating device

본 발명은 본 원인에 의해 제안된 진공강자흡입펌프(한국특허출원제10-2009-114339호)를 구비하여 공기와 물을 동시에 진공흡수하고 흡수된 공기와 물을 강제적으로 교반하여 마이크로 버블을 발생시킴과 동시에 강제로 압축함으로서 마이크로 버블의 생성효율을 향상시키도록 외부에서 공기와 물이 유입되는 흡입구(1)와 토출되는 토출구(2)가 구비된 펌프실(3)을 가지며 상기 펌프실(3)에는 모터(4)의 축에 끼워져 회전되게 결합되고 외측이 넓고 내측이 좁은 이등변 삼각형 형태의 구획칸이 다수개 형성된 임펠러(5)가 마련되어 임펠러(5)의 회전에 따라 발생된 진공흡입력에 의해 공기와 물이 혼합되면서 펌핑되도록 된 진공강자흡식펌프와; 상기 진공강자흡식펌프의 토출구(2)와 연결된 유입관(6)이 연통되게 결합되어 공기와 물이 혼합된 혼합수를 유입받는 유입구(7)와 상기 혼합수를 배출하도록 된 배출구(8)가 구비된 교반실(9)을 가지며 상기 교반실(9)에는 교반모터(10)의 축에 축설되어 회전되면서 교반실(9)로 유입된 혼합수를 타격하면서 교반하도록 된 다수의 교반날개(11)들이 마련된 교반통(12)으로 이루어지되; 상기 배출구(8)는 교반실(9)의 바닥면에 위치됨과 동시에 상기 교반통(12)은 하부로 갈수록 그 폭이 좁아지는 콘형상으로 이루어지며; 상기 교반통(12)의 하부 외주면에 상기 배출구(8)와 연결되고 점차적으로 그 폭이 작아져 배출구(8)를 통해 배출되는 혼합수의 압력과 유속이 점차적으로 증대되도록 된 압력관(13)이 구비되고; 상기 교반날개(11)의 표면에는 불규칙한 다수의 스크래치(14)가 형성됨과 아울러 교반모터(10)의 축을 중심으로 측방으로 경사지도록 구비된 마이크로 버블 발생장치를 제공한다. The present invention is provided with a vacuum inductor suction pump (Korean Patent Application No. 10-2009-114339) proposed by the cause at the same time vacuum absorption of air and water and forcibly stirring the absorbed air and water to generate micro bubbles At the same time, the pump chamber 3 is provided with an inlet port 1 through which air and water are introduced and an outlet port 2 through which air and water are introduced from the outside to improve the generation efficiency of the micro bubble by forcibly compressing the same. The impeller 5 is provided with a plurality of compartments of an isosceles triangular shape having a wide outer side and a narrow inner side, which are fitted to the shaft of the motor 4 and are provided with a vacuum suction input generated by the rotation of the impeller 5. A vacuum ferromagnetic suction pump which is pumped while mixing water; The inlet pipe 6 connected to the outlet port 2 of the vacuum ferromagnetic pump is connected in communication with the inlet port 7 through which the mixed water mixed with air and water is introduced, and the outlet 8 through which the mixed ...

Self priming pump

本发明公开了一种自吸泵，其包括：泵盖；自泵盖一侧安装于泵盖上的泵体，泵盖和泵体共同限定过流空腔；自泵盖另一侧安装于泵体上的端盖，泵盖和端盖共同限定偏心真空腔，偏心真空腔分别和过流空腔、外界连通；安装于泵盖上的轴承支架，轴承支架上设有滚动轴承；以及设有叶轮的泵轴，泵轴穿过偏心真空腔、支撑安装于轴承支架上且密封设置于偏心真空腔中，叶轮收容于过流空腔中。相对于现有技术，本发明自吸泵删除了进水弯管和汽水分离室，通过设置进气管和排气管并采用偏心真空室形成负压，起泵前，无需充水即可实现自吸功能。本发明自吸泵结构简单，操作方便，且自吸快、自吸真空度高。

Vacuum self-priming pump

本发明涉及一种真空腔自吸泵，具体说明为，在外壳（16）内通过隔板（18）分隔设置有主泵室（20）和辅助泵室（22），在各泵室的内部设置有通过电机（12）旋转的主叶轮（24，26）和辅助叶轮（28），其中，主叶轮（24，26）为左右一对，其间形成空间部（48），此外，在主泵室（20）和辅助泵室（22）的吸入管（30，32）之间以及排出管（34，36）之间分别连接形成连接管（38，40），从而在每次抽吸动作时，不仅能够使流体的吸入更加迅速，而且即使抽吸的流体中包含有各种淤泥或固形物，也能确保抽吸能够无阻地顺利进行。

Self-priming centrifugal pump

A self-priming centrifugal pump comprises an inlet and an outlet, and a centrifugal impeller for receiving liquid from the inlet and delivering it to the outlet. An inlet valve and an outlet valve are provided, and a diaphragm arrangement is driven by the same motor as the impeller to provide priming. The diaphragm arrangement can be integrated into a pump design without taking up significant additional space. By driving the diaphragm arrangement with the motor, no additional power source is required.

Centrifugal pump and liquid supply device using the same

A centrifugal pump draws liquid from an inlet opening and discharges the liquid from an outlet opening. The pump includes a casing having a pump chamber, the inlet opening, and the outlet opening, an impeller placed in the pump chamber, and a drive mechanism for rotating the impeller. In the centrifugal pump, the impeller is placed so as to form a gap between the inner surface of the pump chamber and the lower surface of a disc of the impeller. In the impeller is formed a hole at the center of the disc. The casing has in its side wall a communication hole adapted for communication between the pump chamber and the outside of the casing. Even if gas stays in the gap, the centrifugal pump constructed in this way can discharge the gas through the communication hole. The centrifugal pump has sufficient pump performance and can be reliably started without becoming inoperable in starting operation.

Self-priming centrifugal pump

A self-priming centrifugal pump comprises a pump housing (2) having at least one inlet (3) and one outlet (4) for a working fluid, an impeller (5) rotatably mounted in the housing (2) and mounted to a shaft (6) having a longitudinal axis (L), prime mover means acting on the shaft (6) to rotate the impeller, a volute (7) placed inside the pump housing. The volute (7) has an inner spiral chamber (8) with a predetermined axial extension, a suction port (9) in fluid communication with the inlet (3) and a discharge port (10) in fluid communication with the outlet (4) . The spiral chamber (8) is delimited by a substantially continuous outer peripheral wall (11) with no recirculation port. Furthermore, the axial extension of the spiral chamber (8) is greater than or equal to that of the impeller (5). The advantage is obtained of providing fluid recirculation in the volute (7) and a negative pressure in the inlet during the self-priming step, substantially with no additional volumetric loss.

A vacuum pump

The present invention provides a vacuum pump connected to a hygiene facility to pump and discharge fluid such as a variety of sewage in a stable way and especially to put fluid smoothly, which comprises: an accommodating pipe (2) connected to the hygiene facility to receive and accommodate wastewater; a pump pipe (3) connected to and combined with the accommodating pipe (2) to vacuum up the wastewater accommodated in the accommodating pipe (2) with a vacuum and to pump it; and, a chamber (4) connected to and combined with the pump pipe (3) to receive and discharge the fluid pumped by the pump pipe (3). The pump pipe (3) has a screw impeller (7) combined with a central axis (6), which receives rotating power of a motor (5) to rotate, to be interlinked with the central axis (6) to rotate. The accommodating pipe (2) comprises an inducing means combined with the central axis (6) to be interlinked with the central axis (6), to rotate, and to induce the fluid accommodated in the accommodating pipe (2) toward the pump pipe (3). The inducing means comprises: a plate-shaped body (8) fixated on the central axis (6); and, inducing wings (9) extended from the body (8) toward the pump pipe (3). The body (8) has a conical slope (11), which protrudes toward the pump pipe (3), to let a fluid be moved through the slope (11). The multiple inducing wings (9) are extended and formed on the slope (11) toward the outside and are bent and transformed into a curve as they are near the pump pipe (3).

Centrifugal pump

本发明提供一种离心泵，能够在维持蜗壳整体的大小的同时，增大蜗壳内的流量以实现自吸的提高。接近部(44)的外周部分(45)在各叶片(33)的旋转轨迹的范围(S1)内形成为一边从各叶片沿旋转轴方向离开一边扩展的锥状。接近部的内周部分(46)在各叶片的旋转轨迹的范围内形成为一边从各叶片沿旋转轴方向离开一边收缩的锥状。内周部分与外周部分之间是分离的，在内周部分与外周部分之间配置有平面状的对置面(43)。蜗壳主体(42)具有：与蜗壳吸入口(41)连续的锥状的内周部分；与内周部分连续的对置面；与对置面连续的外周部分；与外周部分连续的分离对置面(47a)；以及包围叶片的外周面(33b)的周壁(47b)。

Self-priming pump

내용 없음. No content.

Centrifugal pump

FIELD: engines and pumps. SUBSTANCE: invention relates to the centrifugal pump for supply of gas-containing suspension, in particular fibrous material suspension, which comprises the pump impeller (12), at least, with one hole (15) in the bearing plate and ribs (16) on the back side. The separator device (17) which comprises the separator housing (25) with the fixed disk (18) and the disk (22) rotating together with the pump shaft (21) is provisioned. The separator device (17) in the pump housing is located from the back side of the impeller (12) closely to it from the impeller (12) side in the axial direction. The separator (25) housing comprises the gas collector chamber (31) with the exhaust pipeline (28). The disk (22) rotating together with the pump shaft (21) has a continuous surface (23) without holes. EFFECT: losses of material can be reduced and increase of stability of operation of the centrifugal pump at supply of gas-containing suspension, in particular fibrous material suspension is achieved. 8 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 561 344 C2 (51) МПК F04D 9/00 (2006.01) F04D 7/04 (2006.01) D21D 5/26 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013116378/06, 23.09.2011 (24) Дата начала отсчета срока действия патента: 23.09.2011 (72) Автор(ы): МИХАЛЬ Людвиг (AT) (73) Патентообладатель(и): АНДРИЦ АГ (AT) Приоритет(ы): (30) Конвенционный приоритет: R U 27.09.2010 AT A1613/2010 (43) Дата публикации заявки: 10.11.2014 Бюл. № 31 (45) Опубликовано: 27.08.2015 Бюл. № 24 2 5 6 1 3 4 4 (56) Список документов, цитированных в отчете о поиске: EP 1736218 A1, 27.12.2006. SU 558691 A, 20.06.1977. SU 1825402 A3, 30.06.1993. US 5087171 A, 11.02.1992. US 4936744 A, 26.06.1990. US 5266160 A, 30.11.1993 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.04.2013 (86) Заявка PCT: 2 5 6 1 3 4 4 R U C 2 C 2 AT 2011/000391 (23.09.2011) (87) Публикация заявки PCT: WO 2012/040752 ( ...

Boiler pumps

本申请涉及一种锅炉泵，该锅炉泵包括：泵壳体，该泵壳体具有形成在该泵壳体中并且由其端部表面和其从端部表面延伸的侧表面所确定的空间，并且该泵壳体具有热水入口和空气出口，热水能通过热水入口流入到该空间中，且空气能通过空气出口从空间中排出；引导件，该引导件包括基部部分和引导部分，该基部部分设置成面向泵壳体内部的端部表面并且具有通孔，热水通过通孔以朝向叶轮流动，且该引导部分从基部部分朝向端部表面突出并且形成为使得其纵向方向沿着通孔的周边弯曲从而引导已通过热水入口流入的热水，使得热水在通过其外表面和侧表面之间的空间的同时沿着其纵向方向流动，然后引导朝向通孔；以及至少一个肋部，该至少一个肋部从引导部分的外表面突出。

Pump device for washing machine

洗衣机等用的泵装置,泵体内可贮存引水、设置在泵体内、形成与吸水口连通的涡室的叶轮室,用永久磁铁转子的电动机驱动设置在叶轮室内可自由旋转的叶轮,叶轮室具有把引水与来自吸水口的空气混合后的气水排出的排出部,以及相对于排出部中心与叶轮中心的连线形状大致对称的涡室,即使叶轮进行左或右旋转,能使泵体内引水与来自吸水口的空气相混合,在泵体内进行气水分离,达到自吸水,具有提高安全性、耐用性、降低噪声、小型化等优点。

Multi-stage self-suction rotary pump unit

FIELD: engine devices and pumps.SUBSTANCE: multi-stage self-suction centrifugal pump unit with at least two pump stages (4) following in series in the main flow direction (32) and a reverse flow path (13) arranged in parallel in at least one pump stage (4). The reverse flow channel (13) in the main flow direction (32) ends behind the guide vane (10a) of the first or next pump stage (4).EFFECT: improvement of the pump self-suction process by shortening the time for its implementation and excluding the swirl of the return fluid.16 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 636 288 C2 (51) МПК F04D 9/02 (2006.01) F04D 1/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015149820, 29.04.2014 (24) Дата начала отсчета срока действия патента: 29.04.2014 (72) Автор(ы): ВИНТЕР ТОФТ Бьярне (DK), БРУН Оге (DK) (73) Патентообладатель(и): ГРУНДФОС ХОЛДИНГ А/С (DK) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: FR 936832 A, 30.07.1948. DE Приоритет(ы): (30) Конвенционный приоритет: 22.05.2013 EP 13168801.2 (45) Опубликовано: 21.11.2017 Бюл. № 33 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 22.12.2015 (86) Заявка PCT: EP 2014/058643 (29.04.2014) (87) Публикация заявки PCT: 2 6 3 6 2 8 8 (43) Дата публикации заявки: 27.06.2017 Бюл. № 18 4415157 A1, 09.11.1995. GB 490907 A, 23.08.1938. EP 2505842 A1, 03.10.2012. RU 94046462 A1, 20.09.1996. R U 21.11.2017 2 6 3 6 2 8 8 R U Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) МНОГОСТУПЕНЧАТЫЙ САМОВСАСЫВАЮЩИЙ ЦЕНТРОБЕЖНЫЙ НАСОСНЫЙ АГРЕГАТ (57) Реферат: Многоступенчатый самовсасывающий движения потока оканчивается позади центробежный насосный агрегат с по меньшей направляющего аппарата (10а) первой или мере двумя следующими друг за другом в главном следующей насосной ступени (4). Изобретение направлении (32) движения потока насосными направлено на ...

Pump apparatus

The present invention provides a multipurpose pump apparatus of high achievement, which can continuously pump and convey liquid even containing a large amount of foams and can make high level defoaming function and degassing function, and pumped liquid sterilizing function, etc. The pump apparatus comprises a gas-liquid separating impeller disposed in a pumped liquid path of a primary pump for pumping liquid, a cavity receiver which receives the tail bottom of a tornado-shaped cavity produced by the rotation of the gas-liquid separating impeller to prevent the tornado-shaped cavity from extending, and vacuum means connected to a part in a vicinity of the center of the tornado-shaped cavity through a degassing path.

Method of starting centrifugal pumping unit

A Air Seal Device of a Vacium Self-priming Pump

The present invention can facilitate initialization after pumping of fluid so as to facilitate reworking; A tubular body having an outlet connected to the air discharge pipe and an inlet connected to an inlet of the pump chamber; A float which is moved up and down by buoyancy with a fluid inside the tubular body and an opening and closing member which opens and closes the end of the air discharge pipe according to the ascending and descending of the rich; Wherein the opening and closing member includes an opening and closing plate having an extension rod which is in close contact with the end portion of the air discharge pipe and which is closed at the bottom and has a through hole formed vertically downward at the center and extending downwardly, A fixing pipe provided with a fixing body provided with a through hole having a receiving groove for receiving the opening and closing plate, the through hole being fixed at the center of the receiving groove so that a lower end of the extending rod is positioned inside the tube; And an opening / closing pin which is fixed to the upper end of the rich portion and whose upper end is inserted / fixed in a vertically movable manner in the coupling pipe fastened to the lower end of the extending rod to open / close the through hole. .

Boiler pump

FIELD: engines and pumps. SUBSTANCE: invention relates to a boiler pump comprising a pump housing having a space formed therein and bounded by its end surfaces and its side surfaces extending from the end surfaces, inlet hole for heat water (HW) flowing through it inside space and outlet hole for air outlet from space. Housing has a guide comprising a base portion located opposite the end surface inside the pump housing and having a through hole for passing therethrough HW towards the impeller, and a guide portion protruding from the base portion towards the end surface and made longitudinally bent along the periphery of the through hole for guiding HW, flowing in through the inlet hole for HW, so that HW flows along longitudinal direction when passing through space between outer and side surfaces and then directed to through hole. Body has at least one rib protruding from the outer surface of the guide part. EFFECT: invention is aimed at improvement of efficiency of gas and water separation and reduction of cavitation. 8 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 688 076 C1 (51) МПК F04D 9/00 (2006.01) F04D 29/44 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04D 9/003 (2019.02); F04D 29/445 (2019.02) (21)(22) Заявка: 2018118609, 25.10.2016 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): КЮНДОН НАВИЕН КО., ЛТД (KR) Дата регистрации: 17.05.2019 1413020 A, 05.11.1975. EP 2180190 A2, 28.04.2010. JP 2013181459 A, 12.09.2013. SU 1267053 A1, 30.10.1986. 26.10.2015 KR 10-2015-0148914 (45) Опубликовано: 17.05.2019 Бюл. № 14 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 28.05.2018 (86) Заявка PCT: 2 6 8 8 0 7 6 R U (87) Публикация заявки PCT: WO 2017/073975 (04.05.2017) C 1 C 1 KR 2016/011993 (25.10.2016) 2 6 8 8 0 7 6 (56) Список документов, цитированных в отчете о поиске: JP 2007146863 A, 14.06.2007. GB Приоритет(ы): (30) Конвенционный приоритет: R U 25.10. ...

Anti-blocking sewage discharge self-sucking pump for outdoor use

本发明提供了一种户外使用防堵塞排污自吸泵，包括：自吸泵本体、固定座，所述自吸泵本体固定连接在所述固定座上端；过滤装置，固定连接在所述固定座上端，所述过滤装置的流体出口与自吸泵本体的流体泵入口通过连接管道连接；杂污处理装置，与所述过滤装置连接，用于处理过滤杂污。本发明通过过滤装置将污水过滤后，再将过滤后的污水泵入自吸泵本体的流体泵入口，避免污水中含有的杂污堵塞自吸泵本体；且设置杂污处理装置，将过滤装置中过滤后的杂污处理，避免杂污长时间堆积在过滤装置而导致过滤装置无法使用，从而影响自吸泵的持续使用，即设置杂污处理装置更便于本发明自吸泵使用。

A kind of efficiency compact high self-absorption double-suction pump

本发明及一种高效紧凑型自吸双吸泵，包含泵体（1）和装置于所述泵体（1）内部的双吸叶轮（2），所述泵体（1）内部中间位置上设置有叶轮工作腔，所述叶轮工作腔的两侧设置有两道相应的进水槽（6）；叶轮工作腔的两侧分别设有与相应的进水槽（6）相连通的吸水口，所述双吸叶轮（2）通过其叶片组（23）出水侧边缘处所设有的密封环（24）与叶轮工作腔上相应的吸水口配合装置在所述叶轮工作腔内；所述泵体（1）的一个侧壁在与叶轮工作腔上的吸水口相对应的位置上设有叶轮泵轴安装口（8）。本发明采用了一体式泵体结构，可单轴伸端拆装,并且带有自吸功能,从而实现双吸泵的小型化和工作环境的广泛适用性。

Aself-absorbing water pump

본 고안 양수기는 물흡입관과 본체와 일체로 성형하므로 충분한 용적의 물저장공간을 형성하도록 하고, 상기 물흡입관의 배출구와 임펠러가 본체의 하부 중앙에 형성되도록 하므로써 임펠러는 항상 물에 잠겨있는 상태를 유지할 수 있도록 하므로써 양수기의 기동시 또는 재가동을 용이하게 할 수 있는 것이다. 또한 본고안 양수기는 물에 대한 마찰과 저항이 작은 임펠러를 사용하므로써 임펠러의 회전력이 좋아져 양수효율을 극대화 시킬 수 있는 효과를 갖는 양수기를 제공할 수 있는 매우 유용한 고안인 것이다. The water pump according to the present invention is formed integrally with the water suction pipe and the main body to form a water storage space of sufficient volume, and the impeller is always kept submerged in water by allowing the outlet and the impeller of the water suction pipe to be formed at the lower center of the main body. This makes it easy to start or restart the water pump. In addition, this water pump is a very useful design that can provide a water pump having the effect of maximizing the pumping efficiency by improving the impeller rotation force by using the impeller with low friction and resistance to water.

A Vacium Self-priming Pump

The present invention provides a forceful vacuum suction type pump. According to the present invention, a connection pipe is arranged between a pump chamber and an air discharge pipe to spatially provide an inlet of the pump chamber and the air discharge pipe to enable an easy repeated operation for smooth initialization after a fluid vacuum-pumping operation of the forceful vacuum suction type pump which is described in an application specified as Korean Patent Registration No. 10-791044. An opening and closing valve is arranged on the connection pipe to open and close the inside of the connection pipe. A blocking valve is arranged on a part of the air discharge pipe arranged between the connection pipe and a vacuum means. The forceful vacuum suction type pump also includes a control means which receives sensing data regarding the vacuum state in the pump chamber, executes a computation operation with the received data, and operates the opening and closing valve in accordance with the data set based on the computation operation.

Self-priming centrifugal pump

Self priming centrifugal pumps

Self-priming pump

本申请公开了一种自吸泵，涉及水泵技术领域，其包括底座，底座上设有泵体，泵体内设有泵腔，泵体上还设有与泵腔连通的进水口、出水口以及补水口，泵体转动连接有叶轮，叶轮位于泵腔内，底座上还设有用于驱动叶轮转动的驱动电机，底座上还设有蓄水箱，蓄水箱的容量大于泵腔容量的两倍；蓄水箱底部的高度高于补水口，蓄水箱的底部连通导管，导管远离蓄水箱的一端连通至补水口，导管上还连接有控制阀，控制阀用于控制导管的通断情况。通过设置蓄水箱、导管和控制阀，减少了操作人员打水补入的频次，使得自吸泵的使用更加方便。

Double Suction Self Priming Pump

본 발명은 자흡수 펌프의 펌프용량을 크게 증가시키며 용량 대비 펌프의 설치 및 운전비용을 절감시킨 양흡입 자흡수 펌프에 관한 것이다. 그의 구성은; 내부에 보충수를 담을 수 있으며 펌핑된 유체가 저장되며 기수분리가 일어나는 기수분리공간(S1)을 제공하는 것으로서, 측방향으로 유체의 유입구(15)가 마련되어 있으며, 상방향으로 유체의 토출구(17)가 마련되어 있으며, 측방향으로 주축(3)을 설치할 수 있는 축공(21,21')이 마련되어 있는 펌프하우징(1); 상기 펌프하우징의 축공(21,21')에 회전 가능하게 결합 설치되는 주축(3); 상기 펌프하우징(1) 내부에 위치되어 회전될 수 있도록 상기 주축(3) 상에 고정 설치되는 것으로서 블레이드(5b)가 양면에 형성되어 있는 양면형 임펠러(5); 상기 임펠러(25)를 감싸는 것으로서 상기 유입구(15)를 통해 유입되는 유체가 상기 임펠러(5)의 양쪽 면방향으로 유도되도록 하는 인너하우징(9, inner housing); 상기 임펠러(5)로 유입되는 유체가 상기 토출구(17)를 향하여 유도되도록 하는 가이드관체(11); 및 상기 주축(3)을 구동하는 구동모터(23); 를 포함하는 것을 특징으로 한다.

Vacuum self-priming pump

A vacuum self-priming pump is provided to easily move fluid with a pump chamber kept in a vacuum state by compulsorily discharging air in the pump chamber to the outside. A vacuum self-priming pump(1) includes an air discharging pipe(110), an air blocking unit(120), and an air discharging member(100). The air discharging pipe is in communication with a pump chamber(3) of a pump body(8) so as to move air in the pump chamber. The air blocking unit is installed between one end portion of the air discharging pipe and the pump body so as to open and close the one end portion of the air discharging pipe. The air discharging member is in communication with the other end portion of the air discharging pipe and has an air pumping unit so as to discharge the air in the pump chamber of the pump body to the outside. Fluid is pumped up by keeping the pump chamber of the pump body in a vacuum state.

Vacuum self-priming pump driving gear

본 고안은 액체를 진공 흡입하여 펌핑하는 진공강자흡식 펌프에 관한 것으로, 모터의 구동력을 임펠러에 간접적으로 전달하여 모터와 임펠러의 파손을 방지하며 실링장치의 장착이 필요없이 케이싱 내에서의 누수를 막는 진공강자흡식 펌프의 구동장치에 관한 것이다. The present invention relates to a vacuum ferromagnetic pump that pumps liquid by vacuum suction, and indirectly transfers the driving force of the motor to the impeller to prevent damage to the motor and the impeller and to prevent leakage in the casing without the need for the installation of a sealing device. A drive device for a vacuum ferromagnetic pump. 이러한 본 고안은 흡입구(7)와 토출구(8)가 마련되고 U자형의 이송홈(2a)(3a)이 형성된 내외측케이싱(2)(3)에 임펠러(6)가 장착되어 모터(4)에 부착되는 진공강자흡식 펌프(1)에 있어서, The present invention is provided with the inlet 7 and the discharge port 8, the impeller 6 is mounted on the inner and outer casing (2) (3) formed with the U-shaped transfer groove (2a), (3a) motor 4 In the vacuum ferromagnetic pump (1) attached to 흡입구(7)와 토출구(8) 및 U자형의 이송홈(3a)이 마련된 외측케이싱(3)과, 안쪽에 공간이 구비되고 모터(4)의 축방향에 결합되는 내측케이싱(2)과, 원동자석(11)이 부착되어 모터축(5)에 장착되는 회전캡(10)과, 종동자석(21)이 일측에 장착되는 임펠러(6)와, 종동자석(21)과 임펠러(6)가 내삽되어 내외측케이싱(2)(3)사이에 결합되는 임펠러캡(20)으로 구성되는 것을 특징으로 하는 것이다. An outer casing (3) provided with an inlet (7), an outlet (8), and a U-shaped conveying groove (3a), an inner casing (2) having a space therein, and coupled to the axial direction of the motor (4); The rotating magnet 10 attached to the motor shaft 5 to which the prime magnet 11 is attached, the impeller 6 on which the driven magnet 21 is mounted on one side, and the driven magnet 21 and the impeller 6 are mounted. It is characterized by consisting of an impeller cap 20 is interposed between the inner and outer casing (2) (3).

Plural-stage improved impeller for self-primimg pump, assembly structure thereof and self-primimg pump containing the same

본 발명은 개량된 자흡식 펌프용 복수단 임펠러 및 그 조립 구조체와 이를 포함하는 자흡식 펌프에 관한 것으로서, 이 임펠러는 축공을 포함하는 코어부와, 이로부터 연장되는 다수의 방사상 제1 배플과 연결되는 제1 림 및, 배플 형성면의 상면 및/또는 저면에 당접하여 위치하고 제1 림보다 작은 직경의 제2 림으로 구성되는 자흡식 펌프용 복수단 임펠러에 있어서, 제1 림의 외주연면에 직각인 상하면에 제2 림의 높이까지 연장된 높이를 가지며 상기한 제1 림과 동일한 직경을 갖는 원형의 연장림으로 구성되는 연장부가 형성되며, 또한 자흡식 펌프는 흡입 개구 및 토출 개구와 바이패스 개구가 형성되어 상부 케이싱과, 하부 케이싱, 본 발명에 따른 임펠러와, 환형 부재와, 임펠러 구동 수단으로 구성되고, 상부 케이싱 구조는 고점도 유체의 펌핑 초기에 마중 유체의 도입을 불필요하게 하며, 임펠러는 비폐색형이므로 이물질에 의한 폐색 우려가 없음과 아울러, 회전시 강한 흡입압 및 토출압을 발생시키고, 이 임펠러를 적용한 본 발명의 펌프 조립 구조체와 구동수단으로 이루어지는 직결식 펌프는 소음과 진동이 적으며 유지보수 시 배관의 해체 없이도 펌프 내부의 점검이 가능한 동시에, 비교적 간단한 구성으로 상대적으로 큰 양정 및 현격히 증대된 토출압 및 토출 유량을 나타내므로 고점도 유체의 이송에 특히 적합한 신뢰성이 높은 펌프이다. The present invention relates to an improved multi-stage impeller for self-priming pumps, and an assembly structure thereof and a self-priming pump including the same, wherein the impeller is connected to a core portion including a shaft hole and a plurality of radial first baffles extending therefrom. A multi-stage impeller for self-priming pumps comprising a first rim and a second rim having a diameter smaller than that of the first rim in contact with an upper surface and / or a bottom surface of the baffle forming surface, each of which is perpendicular to the outer peripheral surface of the first rim. On the lower surface, an extension part is formed which has a height extending to the height of the second rim and composed of a circular extension rim having the same diameter as the first rim, and the self-priming pump has a suction opening, a discharge opening and a bypass opening. The upper casing, the lower casing, the impeller according to the present invention, the annular member, the impeller driving means, the upper casing structure is the initial pumping of high viscosity fluid Since the impeller is non-closed, there is no fear of clogging due to foreign substances, and strong suction pressure and discharge pressure are generated during rotation, and the pump assembly structure and ...

Self-sucking unit for centrifugal pump

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

PUMP AND GAS SEPARATION METHOD FROM THE FLUID TO PUMP.

EL PRESENTE INVENTO SE REFIERE A UNA BOMBA CENTRIFUGA Y A UN METODO PARA SEPARAR GAS DE UN FLUIDO QUE CONTIENE SOLIDOS Y QUE VA A SER BOMBEADO, EN EL QUE EL PASO DE DESCARGA DEL GAS, DESDE EL FRENTE DEL PROPULSOR (6) AL CONDUCTO DE DESCARGA DEL GAS (8), LLEVA UNA SUPERFICIE TAMIZANTE (13) QUE PERMITE LA DESCARGA DEL GAS SIN QUE NINGUN SOLIDO PASE AL SISTEMA DE DESCARGA DE DICHO GAS.

Self-priming device for rotodynamic pump

FIELD: engines and pumps. SUBSTANCE: device comprises a phase-dividing vat. The vat is attached to a pump delivery pipe by virtue of a discharge circulation pipe and to a pump suction tube assembly by virtue of a suction circulation branch, an adjoined to it ejector and a process pipe. A vat cavity is fitted with a crash protection of a tapered semi-sphere form and of a linked against each other lock valve of a quill cylinder form, a rod and a water sponson that are positioned within the directional vessel of a quill cylinder form. A vessel is positioned at the holes in the vat end and at a cap on the common normal axis. A part of a vessel wallside, which is in the vat internal cavity, is porous implemented. A force main is mounted at the top of the vessel lateral face, that is closer to the vessel. The process pipe has an S-shaped formation, and its upward component has a height at which its upside is on one horizontal plane with the conveyed fluid level with which the vat is filled prior to pump actuation. The process pipe upper component is attached to the ejector nozzle cylindrical section by dint of a gas bleeding branch pipe, and its bottom component - to an ejector diffuser section butt end. EFFECT: providing with durable pumpdown in rotordynamic pump suction line. 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 624 420 C1 (51) МПК F04D 9/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2015156873, 30.12.2015 (24) Дата начала отсчета срока действия патента: 30.12.2015 (72) Автор(ы): Паутов Валерий Иванович (RU) Дата регистрации: 03.07.2017 Приоритет(ы): (22) Дата подачи заявки: 30.12.2015 (56) Список документов, цитированных в отчете о поиске: RU 2138690 C1, 27.09.1999. SU (45) Опубликовано: 03.07.2017 Бюл. № 19 456089 A, 05.01.1975. SU 1186829 A, 23.10.1985. US 2380 A, 07.08.1945. CN 201090451 Y, 23.07.2008. 2 6 2 4 4 2 0 (57) Формула изобретения Самовсасывающее ...

Improvements in or relating to multistage self-priming type centrifugal pumps

881,395. Centrifugal pumps. YOKOTO, H., and YOKOTO, S. Feb. 19, 1958, No. 5426/58. Class 110 (1). In the centrifugal pump shown, the firststage impeller 1 is of a low-head self-priming type and discharges by way of guide vanes 5a to a chamber 7 in which entrained air separates from the liquid. The separated air is discharged to atmosphere by way of a passage 8 and a vent 17, a filter (not shown) preventing clogging of the vent by dust or sand. The liquid passes by way of passages 9, 10 and 11 to the inlet 12 of the second-stage impeller 2 (which is of normal type), a weir 14 between the passage 11 and inlet 12 trapping sufficient liquid to prime the second stage. A sealing impeller 15 prevents the initial charge of priming liquid being removed from the passage 11 by the impeller 2. There may be more than two stages, and the stages are not necessarily on a common shaft or within a common casing. The second-stage inlet 12 may be located adjacent the casing wall, i.e. towards the coupling 20. The vent 17 may then be replaced by a slit in the position 23, between the shaft and the adjacent surface of the casing wall.

Patent FR2342416B1

Centrifugal pump

本发明提供一种离心泵，能够抑制气穴的产生并提高自吸性能。叶轮(31)由圆盘状的轮毂(32)和4个叶片(33)构成，这4个叶片(33)呈放射状设置于该轮毂(32)的盘面(32a)。所述多个叶片(33)分别相对于旋转中心(34)形成为涡旋状。各叶片(33)由下述部分构成：与蜗壳的内周面对置的外周面(33b)；前曲面(33c)；背面(33d)；形成旋转方向后端侧的旋转方向后端面(33e)；以及轴向端面(33a)。叶片(33)的背面(33d)沿着外周面(33b)形成。叶片(33)形成为：从旋转方向前端侧至旋转方向后端侧，外周面(33b)与背面(33d)之间保持固定的宽度(W1)。另外，关于叶片(33)，外周面(33b)中的旋转方向后端部(33f)形成为凹陷的阶梯面(33g)。

Improvements in or relating to pumps

A pump assembly having a pump with an inlet duct (10) and an outlet duct, the inlet duct including an air separation chamber (11), which is communicable with a vent of an ejector head (21) in which is provided a venturi (25a) to suck air from the air separation chamber and eject it to atmosphere, the ejector head also having a valve member (38) for controlling communication of the vent to atmosphere. A valve member (37) controls communication between the air separation chamber (11) and the ejector head (21), and the valve members (37,38) are carried on a common shaft (39) of a float valve assembly which also includes a float (36) carried by said shaft in the air separation chamber, the valve assembly operating so that air in the air separation chamber is sucked into said ejector head and ejected to atmosphere to prime or re-prime the pump, whilst liquid in the air separation chamber is prevented from entering the ejector head.

Pulp handling pump

Использование: в целлюлозно-бумажной промышленности для транспортировки волокнистых масс высокой концентрации. Сущность изобретения: насос для перекачивания влажной волокнистой массы снабжен сменным штуцером, в котором коаксиально расположен шнек, и обратным клапаном, смонтированным со стороны вывода массы из шнека. Насос снабжен также камерой смешения волокнистой массы с транспортным агентом, соединенной со штуцером и снабженной средством для подвода транспортного агента. Между торцами шнека и обратным клапаном выполнен регулируемый зазор. Средство для отвода воздуха выполнено в виде продольных сквозных шлиц, на поверхности штуцера на уровне последнего витка шнека, шириной 0,2 - 1,0 мм, длиной не более шага последнего витка шнека и суммарной площадью проходного сечения от 0,5 S до S, где S - разность площадей внутреннего сечения штуцера и сечения стержня шнека. 2 ил. 6138$80с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ” 2 083 879 ' 13) СЛ Е 040 7/00, О 210 5/26 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 9510534.4/06, 12.04.1995 (46) Дата публикации: 10.07.1997 (56) Ссылки: Авторское свидетельство СССР М 1463332, кл. В О1РЕ 7/04, 1989. (71) Заявитель: Грудинин В.П., Грудинин А.В. (72) Изобретатель: Грудинин В.П., Грудинин А.В. (73) Патентообладатель: Грудинин Владимир Павлович (54) НАСОС ДЛЯ ПЕРЕКАЧИВАНИЯ ВЛАЖНОЙ ВОЛОКНИСТОЙ МАССЫ (57) Реферат: Использование. в целлюлозно-бумажной промышленности для транспортировки волокнистых масс высокой концентрации. Сущность изобретения: насос для перекачивания влажной волокнистой массы снабжен сменным штуцером, в котором коаксиально расположен шнек, и обратным клапаном, смонтированным со стороны вывода массы из шнека. Насос снабжен также камерой смешения волокнистой массы с транспортным агентом, соединенной со штуцером и снабженной средством для подвода транспортного агента. Между торцами шнека и обратным клапаном выполнен регулируемый зазор. Средство для отвода ...

Milk tank filling system - uses valve arrangement to prime pump between storage tank and tank at higher level

An arrangement of pipes and valves connects a centrifugal pump (6) between a low level milk storage tank (R) with a container (C) at a higher level, to be filled. To prime the pump, milk is allowed to flow through a bottom discharge line (10) from the upper tank when a valve (11) is opened. It enters the pump through an upper branch (18) and bypasses the pump through a lower branch (12) and reaches a flap valve (7) below the pump. The pump starts and lifts the flap, and milk can pass through the main line (1), through the upper branch (18) and upwards to the top of the container. Between the two branches (18, 12) is a spring loaded plunger valve (17) which permits the above operations, operated automatically by the milk flow.

SELF-PRIMING CENTRIFUGAL PUMP

A kind of high suction depth self priming centrifugal pump

本发明涉及输送液体的离心泵，具体地说是一种高吸程自吸式离心泵。包括供水装置和泵组件，其中泵组件通过所述供水装置与储液池连通；所述供水装置与所述泵组件的驱动部件连接；所述供水装置包括依次连接的减速机、摆杆连杆机构、活塞机构及单向阀机构，其中减速机的输入轴与所述泵组件的驱动部件连接，所述单向阀机构的两端分别与所述储液池和所述泵组件的吸入口连接。本发明不仅吸程高(可达数十米)而且泵效率也高，与传统的无密封自吸泵相比其效率可提高20‑30％。

Degassing appliance for central heating systems - pump housing is retained by degaser housing

The appliance is suitable for heating systems with a pump housing, consisting of two facing half cups. The cups form an internal chamber, accommodating a pump impeller. The housing (21) of the dirt collector-degaser has a circular flange (22), which engages directly on the frame of the motor (3). The flange is so dimensioned, that it surrounds the two half cups (10.15) and maintains them in their position on the frame of the motor. The end of the flange carries a spigot which engages sealing in a circular groove (32) of the connecting plate of the motor, via an intermediate sealing ring. The internal profile of the flange has an upper contact edge engaging on the edge (12) of the first half cup (10).

CENTRIFUGAL PUMP

Separation of air from liquid before a centrifugal pump - a chamber being attached to the pump to collect the air

The pump consists of a turbine rotating within a housing of which the centre is pierced by a liq. inlet, the outlet being at the bottom. The air separating appts. comprises a chamber separated into two compartments by a wall extending upwards from the bottom of the chamber, the two compartments communicating with each other at the top of the chamber. The liq. with air in it, enters through an inlet in the first compartment and the air-free liq. leaves the second compartment through an outlet in the second compartment which is made to coincide with the inlet to the pump housing. The appts. may be used in conjunction with a pump in a heating circuit or other situations where air trapped in the system would cause irregularities of flow and reduction of pump efficiency. Using the appts. the air is extracted efficiently from the liq. and is evacuated rapidly and continuously.

CENTRIFUGAL PUMP WITH AUTOMATIC BEGINNING

Carter de pompe centrifuge dans laquelle le rotor est monté de manière que l'aspiration par l'admission soit produite par le stator de façon à éliminer la nécessité de remplir l'admission de la pompe de liquide avant le début du pompage. L'aube de guidage 7 du stator se prolonge dans la direction de l'axe par-dessus le rotor 2 du côté de l'aspiration et le côté arrière de ce rotor est décalé avec son moyeu à l'intérieur d'une cavité qu'un canal 9 raccorde à la partie inférieure du carter 1 de la spirale qui fait suite à l'extrémité de l'aube statorique suivante de guidage 7. Application aux pompes à liquides afin d'en accélérer l'amorçage automatique. Centrifugal pump housing in which the rotor is mounted such that the suction through the inlet is produced by the stator so as to eliminate the need to fill the inlet of the pump with liquid before pumping begins. The guide vane 7 of the stator extends in the direction of the axis over the rotor 2 on the suction side and the rear side of this rotor is offset with its hub inside a cavity which 'a channel 9 connects to the lower part of the casing 1 of the spiral which follows the end of the following guide stator vane 7. Application to liquid pumps in order to accelerate the automatic priming thereof.