CN101964570B - Motor stator bar mold type vacuum-pressure impregnated insulation device - Google Patents
Motor stator bar mold type vacuum-pressure impregnated insulation device Download PDFInfo
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- CN101964570B CN101964570B CN2010105244644A CN201010524464A CN101964570B CN 101964570 B CN101964570 B CN 101964570B CN 2010105244644 A CN2010105244644 A CN 2010105244644A CN 201010524464 A CN201010524464 A CN 201010524464A CN 101964570 B CN101964570 B CN 101964570B
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Abstract
The invention relates to a motor stator bar mold type vacuum-pressure impregnated insulation device which is used for manufacturing generator and high capacitor motor stator bar insulation. The device has the advantages of simple structure, convenient use, low labor intensity, high efficiency, quality guarantee, energy saving and the like. The device is structurally characterized by comprising a mold and a pedestal, the appearance of the mold is similar to the shape of a stator bar, and the mold and the pedestal are assembled together, wherein a hydraulic pressurization device is arranged on the mold, and the mole is divided into a removable upper half mold and a removable lower half mold, a labyrinth seal device is arranged between the upper half mold and the lower half mold, and a sealed cavity is formed after the two halves are closed; the stator bar is installed in the cavity; the cavity is also communicated with an impregnation device and a vacuum device; a heating and cooling device is also arranged in the pedestal and the mole, and the device is matched with the impregnation device; and the pressurization device, the impregnation device, the heating and cooling device and the vacuum device are all connected with an automatic controller and are controlled by the automatic controller.
Description
Technical field
The present invention relates to a kind of stator winding conductor bars in electrical machines die type vacuum pressure impregnation seal (MVPI).
Background technology
For the insulation technology of making generator or high capacity motor stator bar, generally adopt many rubber mouldings to press insulation, middle glue or few glue vacuum tank vacuum pressure impregnation technology (VPI--Vacuum Pressure Immerge) now.The subject matter that prior art exists is, molded curing technology integral insulation poor performance, mass production processes globality are poor; Vacuum tank VPI technology is for large-size machine bad adaptability, insulating varnish adjustment difficulty, consume big, insulating varnish easy ageing and cause a large amount of wastes.
Summary of the invention
The object of the invention is exactly in order to address the above problem, and provides a kind of and has simple in structurely, easy to use, can reduce labor intensity, and raises the efficiency, and ensures the quality of products, the stator winding conductor bars in electrical machines die type vacuum pressure impregnation seal of advantage such as energy savings.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of stator winding conductor bars in electrical machines die type vacuum pressure impregnation seal, it comprises mould and the base that profile is similar with the stator bar shape, and mould and base are assembled together, and mould is provided with the fluid power pressue device; Mould be divided on the removable mold half-sum mould second, be provided with labyrinth-type excluder between the upper and lower half, the two halves back of closing forms sealed cavity; Stator bar is installed in this cavity; Cavity also is communicated with paint device and vacuum plant; Also be provided with heating-cooling device in base and the mould, this device cooperates with paint device; Said pressue device, paint device, heating-cooling device and vacuum plant all are connected with automatic controller, and controlled by automatic controller.
Said mould is upper and lower partly all to have the groove and the composition surface that is connected usefulness with line rod consistent size; The labyrinth seal groove of said labyrinth-type excluder on the composition surface, being provided with is equipped with the heat resistant rubber sealing strip in the groove; On the mould half-sum mould second be installed together the cavity that the line rod form to be placed in the back, the line rod consistent size after cavity size is solidified with the bag insulation, faying face seals cavity therebetween with sealing strip.
Said pressue device is several fluid heads that are arranged on the mould, and fluid head is connected with hydraulic system through pipeline; Fluid head is distributed in the straight place of mould, is respectively equipped with at least one fluid head in the knee of both mold ends simultaneously.
Said paint device comprises the storage paint can, and it is connected with force (forcing) pump through an electromagnetically operated valve, and force (forcing) pump is connected with a triple valve, and triple valve one end is communicated with cavity one end through pipeline, and an end is communicated with the storage paint can, and last end of triple valve is communicated with vacuum plant.
Said heating-cooling device is the thermal medium pipeline that is arranged in base and the mould; They are communicated with after the assembling of mould and base; Thermal medium pipeline on the base is provided with import and outlet; Import is communicated with the thermal medium jar respectively with outlet, and the pipeline of import is provided with pump, and the thermal medium jar is provided with the heating and cooling device.
Operation principle of the present invention is:
Stator bar is placed in the lower mold half that is installed on the base, closes first then,, can well stator bar be wrapped in the cavity that forms between the two because mold shape is identical with the shape of stator bar.Periphery irregular maze trough in mould composition surface is equipped with heat-resisting rubber weather strip in the groove, go up second and compressed by hydraulic pulldown; Can make mould seal well that (after base and mould assemble, on mould top fluid head is installed, fluid head can be uniformly distributed with in the mould straight portion like this; But must guarantee in the both mold ends knee; Be respectively equipped with at least one fluid head, could guarantee that like this stator bar end is stressed guaranteed, the sealing and the dipping effective.) assemble the line rod after, start automatic controller, connect vacuum pump through triple valve earlier; Space in the cavity is evacuated; After reaching the vacuum degree of setting, close the vacuum passage of triple valve automatically, and open and store up the pipeline that paint can is communicated with; The storage paint can is irritated lacquer through force (forcing) pump in cavity, reach to fail behind the pressure of setting to coat with lacquer valve and close automatically; Why will set up force (forcing) pump, be in order to guarantee that the lacquer liquid in the cavity can keep certain pressure when flooding, make dipping effect better thereby make it fully be penetrated into insulating barrier.Automatic controller makes also that the fluid power compression system pressurizes automatically on the mould, keeps the pressure of bar insulation curings needs; Also be provided with the medium pipeline that the heating and cooling mould is used on base and the mould, automatic controller control thermal medium jar is sent medium (for example oil or water etc.) heating into medium pipeline through pump, the line rod in the cavity is heated, and the curing temperature of maintenance needs.Accomplish when heating process, keep certain pressure and temperature, wait to insulate fully solidify after, the cooling device on the automatic controller control medium jar starts, and makes medium cooling, and then makes mould and base lower the temperature, to satisfy the requirement of die sinking.After reaching uniform temperature, first removes with mould, takes out the line rod.
The invention has the beneficial effects as follows:
1 with respect to vacuum tank VPI system, needs the volume of vacuum very little, can reach required vacuum degree with the vacuum system of smaller power in the very short time;
The unnecessary lacquer type organic coating in insulation back need not soaked in 2 relative vacuum jar VPI systems, need with how many insulating resins lacquers with regard to pump what, can accomplish dipping process with lacquer type organic coating amount seldom in the very short time;
3 with respect to vacuum tank VPI system, needs the time of heating or cooling to shorten greatly;
4 with respect to vacuum tank VPI system, reduces space hold, more flexibly the more efficient use production site;
5 can change insulation system such as lacquer type organic coating very easily, practice thrift test and produce and use lacquer type organic coating;
6 utilize special-purpose program and the automatic control system of a cover, have realized can reducing labor intensity, practice thrift manpower, raising the efficiency, ensure the quality of products the automatic control of vacuum, dipping, temperature, pressure and other parameters;
7 lacquer type organic coatings needn't repeat heating and cooling, and the significant wastage that becomes to go bad and form because of repeated heating cooling Zhao in the long-term use is avoided in unsuitable aged deterioration; Energy savings (needn't repeat heating and cooling insulating resin lacquer)
Size obtains strict control, shape and good insulation integrity, mass production processes good integrity after the moulding of 8 lines rod.
Description of drawings
Fig. 1 is a structural principle sketch map of the present invention.
Wherein, 1 stator bar, 2 moulds, 3 vacuum plants, 4 thermal medium pipelines, 5 automatic controllers, 6 pumps; 7 bases, 8 thermal medium jars, 9 cavitys, 10 storage paint cans, 11 fluid heads, 12 electromagnetically operated valves, 13 force (forcing) pumps; 14 triple valves, 15 imports, 16 the outlet, 17 moulds first, 18 moulds second, 19 sealing strips.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Among Fig. 1, it comprise the mould 2 similar with stator bar 1 shape and base 7.Mould 2 be divided into again mould first 17 with mould second 18, second 18 fixedly is assemblied in mould on the base 7, first 17 can dismantle mould.The labyrinth type groove of placing stator bar 1 and sealing strip 19 is arranged on the composition surface of upper and lower half 17,18, and the faying face of upper and lower half 17,18 and sealing strip 19 are with cavity 9 sealings in the mould of the unwrapping wire rod usefulness of upper and lower half 17,18 formation; Consistent size after the size of cavity 9 and bar insulation are solidified; Mould 2 is provided with the fluid power pressue device, and stator bar 1 is installed in the mould 2 inner cavitys 9 that form, and cavity 9 also is communicated with paint device and vacuum plant 3; Also be provided with heating-cooling device 4 in base 7 and the mould 2, this device cooperates with paint device; Said pressue device, paint device, heating-cooling device and vacuum plant 3 all are connected with controller 5.
Said pressue device is several fluid heads 11 that are arranged on the mould 2, and fluid head 11 is connected with hydraulic system through pipeline; Fluid head 11 is distributed in the straight place of mould 2, is respectively equipped with at least one fluid head 11 in the knee at mould 2 two ends simultaneously.
Said paint device comprises storage paint can 10, and it is connected with force (forcing) pump 13 through an electromagnetically operated valve 12, and force (forcing) pump 13 is connected with a triple valve 14, and triple valve 14 1 ends are communicated with cavity 9 one ends through pipeline, and triple valve 14 last ends are connected with vacuum plant 3.
Said heater is the thermal medium pipeline 4 that is arranged in base 7 and the mould 2; They are communicated with after 7 assemblings of mould 2 and base; Thermal medium pipeline 4 on the base 7 is provided with import 15 and outlet 16; Import 15 is communicated with thermal medium jar 8 respectively with outlet 16, and the pipeline of import 15 is provided with pump 6, and thermal medium jar 8 is provided with the heating and cooling device.
Claims (4)
1. a stator winding conductor bars in electrical machines die type vacuum pressure impregnation seal is characterized in that, it comprises mould and the base that profile is similar with the stator bar shape, and mould and base are assembled together, and mould is provided with the fluid power pressue device; Mould be divided on the removable mold half-sum mould second, be provided with labyrinth-type excluder between the upper and lower half, the two halves back of closing forms sealed cavity; Stator bar is installed in this cavity; Cavity also is communicated with paint device and vacuum plant; Also be provided with heating-cooling device in base and the mould, this device cooperates with paint device; Said pressue device, paint device, heating-cooling device and vacuum plant all are connected with automatic controller, and controlled by automatic controller;
Said mould is upper and lower partly all to have the groove and the composition surface that is connected usefulness with line rod consistent size; The labyrinth seal groove of said labyrinth-type excluder on the composition surface, being provided with is equipped with the heat resistant rubber sealing strip in the groove; On the mould half-sum mould second be installed together the cavity that the line rod form to be placed in the back, the line rod consistent size after cavity size is solidified with the bag insulation, the composition surface seals cavity therebetween with sealing strip.
2. stator winding conductor bars in electrical machines die type vacuum pressure impregnation seal as claimed in claim 1 is characterized in that said pressue device is several fluid heads that are arranged on the mould, and fluid head is connected with hydraulic system through pipeline; Fluid head is distributed in the straight place of mould, is respectively equipped with at least one fluid head in the knee of both mold ends simultaneously.
3. stator winding conductor bars in electrical machines die type vacuum pressure impregnation seal as claimed in claim 1; It is characterized in that said paint device comprises the storage paint can, it is connected with force (forcing) pump through an electromagnetically operated valve; Force (forcing) pump is connected with a triple valve; Triple valve one end is communicated with cavity one end through pipeline, and an end is communicated with the storage paint can, and last end of triple valve is communicated with vacuum plant.
4. like claim 1 or 3 described stator winding conductor bars in electrical machines die type vacuum pressure impregnation seals; It is characterized in that said heating-cooling device is the thermal medium pipeline that is arranged in base and the mould, they mould be communicated with after base assembles; Thermal medium pipeline on the base is provided with import and outlet; Import is communicated with the thermal medium jar respectively with outlet, and the pipeline of import is provided with pump, and the thermal medium jar is provided with the heating and cooling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105244644A CN101964570B (en) | 2010-10-29 | 2010-10-29 | Motor stator bar mold type vacuum-pressure impregnated insulation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105244644A CN101964570B (en) | 2010-10-29 | 2010-10-29 | Motor stator bar mold type vacuum-pressure impregnated insulation device |
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| CN101964570A CN101964570A (en) | 2011-02-02 |
| CN101964570B true CN101964570B (en) | 2012-11-07 |
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| CN2010105244644A Active CN101964570B (en) | 2010-10-29 | 2010-10-29 | Motor stator bar mold type vacuum-pressure impregnated insulation device |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202011110399U1 (en) * | 2011-03-09 | 2013-11-26 | Pett & Pett T.I.P GmbH | Monitoring and control system for an impregnation device |
| EP3148059A1 (en) * | 2015-09-28 | 2017-03-29 | PETT & P.E.T.T. Trade & Industry Products GmbH | Assembly and method for impregnating a winding bar |
| CN106881237B (en) * | 2015-12-16 | 2019-03-08 | 株洲时代新材料科技股份有限公司 | Vacuum hydraulic immersion system and dipping method |
| US10388437B2 (en) | 2016-08-10 | 2019-08-20 | Siemens Energy, Inc. | Assembly and method for manufacturing insulation layer of electrical conductors |
| CN110518762A (en) * | 2019-08-08 | 2019-11-29 | 哈尔滨电机厂有限责任公司 | A kind of stator bar lacks glue insulation Novel heating curing method |
| CN112706356B (en) * | 2020-12-08 | 2023-05-26 | 山东齐鲁电机制造有限公司 | Single-branch VPI impregnation curing molding process of generator stator bar mold type |
| CN114123691B (en) * | 2021-10-30 | 2022-11-08 | 中国长江动力集团有限公司 | Nimble detachable VPI device |
Citations (6)
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| US3937855A (en) * | 1974-06-21 | 1976-02-10 | General Electric Company | Method of curing vacuum pressure impregnated coils |
| CN1593901A (en) * | 2004-06-21 | 2005-03-16 | 南京玻璃纤维研究设计院有限责任公司 | GMT sheet material compacting tool set |
| CN101064456A (en) * | 2007-03-23 | 2007-10-31 | 南阳防爆集团有限公司 | Anti-explosion vacuum pressure varnished insulation apparatus and its technical method |
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| CN101562366A (en) * | 2009-05-06 | 2009-10-21 | 北京超同步科技有限公司 | Water-cooled motor |
| CN201830111U (en) * | 2010-10-29 | 2011-05-11 | 山东齐鲁电机制造有限公司 | Motor stator bar mold type vacuum pressure impregnation insulating device |
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2010
- 2010-10-29 CN CN2010105244644A patent/CN101964570B/en active Active
Patent Citations (6)
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| US3937855A (en) * | 1974-06-21 | 1976-02-10 | General Electric Company | Method of curing vacuum pressure impregnated coils |
| CN1593901A (en) * | 2004-06-21 | 2005-03-16 | 南京玻璃纤维研究设计院有限责任公司 | GMT sheet material compacting tool set |
| CN101064456A (en) * | 2007-03-23 | 2007-10-31 | 南阳防爆集团有限公司 | Anti-explosion vacuum pressure varnished insulation apparatus and its technical method |
| CN101086921A (en) * | 2007-04-20 | 2007-12-12 | 上海同立电工材料有限公司 | A vacuum pressure dipping technology and its application device |
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