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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 12. Отображено 12.
30-04-2014 дата публикации

Method for judging quality of stator iron core through noises

Номер: CN103759815A
Автор: GOU ZHIDE, FU LIXIN, JIAO XIAOXIA, LI CUIRONG, ZHANG WEI
Принадлежит:

The invention discloses a method for judging the quality of a stator iron core through noises. The method is used for detecting the assembling quality of the stator iron core, and searching for weather the problems that the iron core is not tightly compressed, is loosened and has a local cavity exist or not. When a magnetization test is carried out on the stator iron core, a noise sound pressure level, one third octave band frequency spectrum and local high-spot noise test is carried out. An arithmetic mean value of noise sound pressure levels is obtained, and the difference value between the noise in the cold state and the noise in the hot state is calculated. The one third octave band of the noise in the cold state and the noise in the hot state is drawn on the same spectrogram, and the differences of the spectrogram are compared. The difference value comparison is carried out between the local noises, and the maximum local noise value is determined. The quality of the stator iron core ...

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Номер записи: 1
08-12-2010 дата публикации

Generator stator self-bearing conveyer

Номер: CN0101475007B
Автор: WANG YANBIN, LIANG HONGTAO, LIU JIHAI, JIAO XIAOXIA, MOU SONG, SUN WEIYAN, LIU YANG, ZHENG LONGTAI, LI ZHIHE, SONG XIAODONG, WEI JIANWU, YANBIN WANG, HONGTAO LIANG, JIHAI LIU, XIAOXIA JIAO, SONG MOU, WEIYAN SUN, YANG LIU, LONGTAI ZHENG, ZHIHE LI, XIAODONG SONG, JIANWU WEI
Принадлежит:

The invention discloses a self-bearing transport device for a generator stator. Two flanges with long supporting arms are assembled with the generator stator, which can be butted with a vehicle travel part to form a vehicle; and the two flanges with the long supporting arms and both ends of the generator stator are butted by adopting an unidirectional bearing tang structure and are fixed through bolts, a pre-stressed centralized load-bearing pull rod structure runs through the lower ends of the two flanges with the long supporting arms, and supporting arm ends of the flanges with the long supporting arms are provided with an upper half-pair structure of a core plate, a side bearing upper half-pair structure and an internally-guided upper half-pair of the vehicle form an interface for the vehicle travel part to ensure that the generator stator, the device and the vehicle travel part form an integral vehicle. The device has low gravity center and light total weight, can be lower than the ...

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Номер записи: 2
25-07-2012 дата публикации

Steam turbine generator with stator multiloop reciprocating ventilation system

Номер: CN0102064636B
Автор: WEILI LI, YINGLI LUO, XIAOXIA JIAO, YIHUANG ZHANG, FEIYANG HUO, CHUNWEI GUAN, LI WEILI, LUO YINGLI, JIAO XIAOXIA, ZHANG YIHUANG, HUO FEIYANG, GUAN CHUNWEI
Принадлежит:

The invention relates to a steam turbine generator with a stator multiloop reciprocating ventilation system, belonging to the technical field of cooling of large air-cooled steam turbine generators. The invention solves the problem that the axial temperature distribution of the stator of the traditional large steam turbine generator is not uniform. According to the invention, an axial partition plate is used for dividing a ventilation region into a cold wind cavity and a hot wind cavity, and a toothspace radial partition plate is used for dividing a ventilating duct into stator cold wind areas and stator hot wind areas; each stator cold wind area is equally divided into two cold wind sections by one radial partition plate in the cold wind area along the peripheral direction, and each stator hot wind area is equally divided into two hot wind sections by one radial partition plate in the hot wind area along the peripheral direction; each cold wind section and adjacent hot wind sections form ...

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Номер записи: 3
05-08-2015 дата публикации

Stator main and auxiliary slot wedge for large-scale turbonator

Номер: CN104821677A
Автор: LI WEILI, XUE YI, WANG LIKUN, LI DONG, HUO FEIYANG, WANG GUOHAI, JIAO XIAOXIA, ZHANG FUQUAN, JIN HUIYONG
Принадлежит:

The invention relates to a stator main and auxiliary slot wedge for a large-scale turbonator, and the slot wedge is in a two-layer double-slot-wedge structure, wherein the upper slot wedge (1) is an auxiliary slot wedge, and the lower slot wedge (2) is a main slot wedge. The upper surface of the upper slot wedge (1) is aligned with a notch, or the upper surface of the upper slot wedge (1) is slightly lower than the notch. The slot wedge provided by the invention can effectively reduce the loss and local high temperature of a generator rotor, reduces the harmonic content of an air-gap magnetic field of a generator, prevents the overtemperature of an end structural member of the generator from affecting the generator, and improves the capability of safe and stable operation of the generator.

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Номер записи: 4
08-07-2009 дата публикации

Generator stator self-bearing conveyer

Номер: CN0101475007A
Автор: JIAO XIAOXIA, WANG YANBIN, ZHENG LONGTAI, SONG XIAODONG, LIU YANG, SUN WEIYAN, MOU SONG, WEI JIANWU, LI ZHIHE, LIU JIHAI, LIANG HONGTAO, XIAOXIA JIAO, YANBIN WANG, LONGTAI ZHENG, XIAODONG SONG, YANG LIU, WEIYAN SUN, SONG MOU, JIANWU WEI, ZHIHE LI, JIHAI LIU, HONGTAO LIANG
Принадлежит:

The invention discloses a self-bearing transport device for a generator stator. Two flanges with long supporting arms are assembled with the generator stator, which can be butted with a vehicle travel part to form a vehicle; and the two flanges with the long supporting arms and both ends of the generator stator are butted by adopting an unidirectional bearing tang structure and are fixed through bolts, a pre-stressed centralized load-bearing pull rod structure runs through the lower ends of the two flanges with the long supporting arms, and supporting arm ends of the flanges with the long supporting arms are provided with an upper half-pair structure of a core plate, a side bearing upper half-pair structure and an internally-guided upper half-pair of the vehicle form an interface for the vehicle travel part to ensure that the generator stator, the device and the vehicle travel part form an integral vehicle. The device has low gravity center and light total weight, can be lower than the ...

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Номер записи: 5
09-04-2014 дата публикации

Motor multipath series-parallel water cooling system

Номер: CN103715830A
Автор: LI WEILI, WANG LIKUN, LI JINYANG, JIAO XIAOXIA
Принадлежит:

The invention discloses a motor multipath series-parallel water cooling system. The motor multipath series-parallel water cooling system comprises a water pipe at the tail end of the stator core yoke portion of the linear portion of an electric generator and a motor end winding external cooling waterway, and a water loop is composed of the water pipe at the tail end of the stator core yoke portion of the linear portion of the electric generator and the motor end winding external cooling waterway; the motor end winding external cooling waterway is composed of a cooling water pipe cooling system loop of a lower winding layer and a cooling water pipe cooling system loop of an upper winding layer; the cooling water pipe cooling system loop of the lower winding layer is composed of at least one set of circumferential water pipes which are communicated in the direction from the linear portion to the nose end, and the cooling water pipe cooling system loop of the upper winding layer is composed ...

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Номер записи: 6
25-08-2010 дата публикации

Ventilation structure for steam turbine generator stand

Номер: CN0101814795A
Автор: JIAO XIAOXIA, LI GUANGDE, LIANG HONGTAO, LIU YANG, MOU SONG, SONG XIAODONG, WANG YANBIN, ZHENG LONGTAI, XIAOXIA JIAO, GUANGDE LI, HONGTAO LIANG, YANG LIU, SONG MOU, XIAODONG SONG, YANBIN WANG, LONGTAI ZHENG
Принадлежит:

The invention relates to a ventilation structure of a steam turbine generator stand. An annular wind path is arranged between a generator stator iron core and a stand sheath; an axial wind path is covered outside the bottom of the stand sheath; an axial wind path stand is arranged at the upper part of the stand sheath; and the sheath of the top surface is a plane. The invention completes the ventilation circulatory function of the generator, reduces the width dimension of the stand, fully utilizes the transport limit shape, minimizes the overall dimension and weight of a generator stator, realizes integral railway transportation of the large steam turbine generator stator, reduces the comprehensive cost, and improves the quality of products.

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Номер записи: 7
19-02-2014 дата публикации

Annular water internal cooling structure laid in stator ventilation ditch

Номер: CN103595189A
Автор: LI WEILI, ZHANG SHUKUAN, WANG LIKUN, JIAO XIAOXIA, ZHOU FENG
Принадлежит:

The invention relates to an annular water internal cooling structure laid in a stator ventilation ditch. The annular water internal cooling structure is laid in the hot air area stator radial ventilation ditch and cools cooling media in the ventilation ditch. An inner hollow cavity of the annular water internal cooling structure is full of cooling water. The cooling water plays a role in cooling cooling media entering the stator ventilation ditch through clearance and a stator so as to achieve the purpose of improving the cooling effect of a stator winding and a stator iron core and reduce the requirements for a motor cooler. A cooling water inlet pipe and a cooling water outlet pipe are arranged in the inner hollow cavity. At working time, the cooling water outlet pipe is closed first, and the water outlet pipe is opened when the whole annular water inner cooling structure is full of cooling water. A cooling water circulation device, the water inlet pipe and the water outlet pipe form ...

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Номер записи: 8
21-04-2010 дата публикации

Logic self-loading method and system for field programmable gate array of embedded system

Номер: CN0101697129A
Автор: Jiao Xiaoxia, Xu Kun, Zhang Xu
Принадлежит:

The invention discloses a logic self-loading method and a system for a field programmable gate array of an embedded system. The method comprises the following steps of binding a single-board logic guiding module with a single-board logic downloading module to obtain an automatic loaded logic starting module; starting a field programmable gate array by the automatic loaded logic starting module; and loading logic files of the field programmable gate array by the automatic loaded logic starting module according to a recorded loading mode. The system comprises a binding module and the automatic loaded logic starting module, wherein the binding module is used for binding the single-board logic guiding module with the single-board downloading module to obtain the automatic loaded logic starting module; and the automatic loaded logic starting module is used for starting the field programmable gate array and loading the logic files of the field programmable gate array in the recorded loading mode ...

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Номер записи: 9
19-02-2014 дата публикации

Device for measuring flow and wind velocity of stator and rotor of large power generator

Номер: CN103595192A
Автор: LI WEILI, HAN JICHAO, WANG LIKUN, JIAO XIAOXIA
Принадлежит:

The invention discloses a device for measuring the flow and wind velocity of a stator and a rotor of a large power generator, and belongs to the electrical field. The problem that due to limitation of space of the power generator and influences of the complex electromagnetic field in a motor on measurement, the flow and wind velocity of the stator and the rotor of the large power generator and the flow and wind velocity in an air gap between the stator and the rotor of the large power generator are very difficult to measure in an actual motor and other problems are solved through the device. A rotor solid body provided with an auxiliary groove ventilating duct, a radial ventilating duct and a rotor groove is arranged, the auxiliary groove ventilating duct, the radial ventilating duct and the rotor groove are the same as those of a rotor of a turbonator, and a wooden stator core and stator windings are arranged on a stator side. Forward extending type wind velocity measuring sensors are ...

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Номер записи: 10
09-04-2014 дата публикации

Ventilation testing device of synchronous generator

Номер: CN103712653A
Автор: LI WEILI, HAN JICHAO, LI JINYANG, WANG LIKUN, JIAO XIAOXIA, ZHANG SHUKUAN
Принадлежит:

The invention discloses a ventilation testing device of a synchronous generator. The device comprises a power transmission line, a rotor shaft of the synchronous generator, a rectifier, an outer rotor of an excitation system, an inner rotor of the excitation system, a back-winding type stator armature winding, a motor dragging an outer rotor shaft, a stator winding, a stator core, a stator radial ventilating duct, a connecting rod, a stator winding temperature sensor, a fluid speed measurement sensor, a fluid temperature measurement sensor, a direct-current power source, a rotor exciting winding, a rotor of the synchronous generator, a gas gap between a stator and a rotor, a forward-extending type fluid speed measurement sensor, a forward-extending type fluid temperature measurement sensor and a motor for dragging a rotor main shaft of the synchronous generator. According to the device, high experiment cost can be avoided, the ventilation testing device has the advantages that fluid speed ...

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Номер записи: 11
19-02-2014 дата публикации

Evaporative cooling type metallic shield for end portion of turbonator

Номер: CN103595173A
Автор: LI WEILI, WANG LIKUN, HUO FEIYANG, JIAO XIAOXIA, ZHOU FENG
Принадлежит:

The invention provides an evaporative cooling type metallic shield for an end portion of a turbonator. The evaporative cooling type metallic shield comprises an inner-layer shield board and an outer-layer shield board, wherein an inner cavity used for containing cooling liquid is formed between the inner-layer shield board and the outer-layer shield board. An inner wall and an outer wall are arranged on the two sides of the inner cavity, and a partition board is arranged in the cavity in the horizontal direction of the section. The partition board divides the inner cavity into an upper half-circumference cavity and a lower half-circumference cavity. A baffle is arranged in the upper half-circumference cavity in the lengthwise direction of the section, and the baffle divides the upper half-circumference cavity into an upper left cavity and an upper right cavity. A self-cooling manner is adopted in the metallic shield, the structure is simple, auxiliary device does not exist, and application ...

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Номер записи: 12