CN104578598A - Multi-air path-structure collector ring ventilating and cooling device of doubly-fed wind generator - Google Patents
Multi-air path-structure collector ring ventilating and cooling device of doubly-fed wind generator Download PDFInfo
- Publication number
- CN104578598A CN104578598A CN201410776530.5A CN201410776530A CN104578598A CN 104578598 A CN104578598 A CN 104578598A CN 201410776530 A CN201410776530 A CN 201410776530A CN 104578598 A CN104578598 A CN 104578598A
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- CN
- China
- Prior art keywords
- cover body
- air inlet
- collector ring
- cooling device
- hood
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/28—Cooling of commutators, slip-rings or brushes e.g. by ventilating
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a multi-air path-structure collector ring ventilating and cooling device of a doubly-fed wind generator, relates to equipment for ventilating and cooling a doubly-fed wind generator collector ring and removing carbon powder. The multi-air path-structure collector ring ventilating and cooling device comprises a cylindrical hood, wherein at least one group of symmetrical air inlets are formed in the side wall of the upper end of the hood; an air inlet is formed in the bottom of the hood; a circular arc-shaped bent deflector plate is arranged inside each air inlet to divide each air inlet into two air paths; positions of deflector plates in the air inlets in the upper end of the hood are correspondingly regulated according to the number of carbon brushes and the arrangement way of the carbon brushes; the deflector plate in the air inlet in the bottom of the hood guides one air path into the end surface of a centrifugal fan, and vertically guides the other air path to the top end of the hood. The multi-air path-structure collector ring ventilating and cooling device reduces the fault probability effectively, improves the running reliability of the doubly-fed wind generator, and reduces the maintenance cost of the generator.
Description
Technical field
The present invention relates to ventilating and cooling and the carbon dust clearing equipment of double-feed wind motor collector ring, particularly relate to a kind of collector ring ventilation cooling device.
Background technology
Collector ring is as the vitals of double-fed wind power generator, and its Main Function is contacted with collector ring by carbon brush by exciting current, conducts and carry out excitatory to rotor windings.Due to double feedback electric engine High Rotation Speed, carbon brush and collector ring friction can produce frictional dissipation.Rotor current, by carbon brush and collector ring, also can produce electrical loss.Therefore for ensureing that collector ring and carbon brush run in normal temperature range, the ventilation cooling structure of appropriate design collector ring and carbon brush is answered.Carbon brush and collector ring friction can produce a large amount of carbon dust, if carbon dust cannot be removed in time, then can produce accumulation on collector ring and brush holder, will cause collector ring fault time serious.Therefore, the free-revving engine that carbon dust is also the design of collector ring aeration structure is removed.
At present, collector ring ventilation cooling device mainly contains induced draft structure and carries fan structure.Induced draft structure is tyre cooling blower, and cool collector ring system, add a fault point, structure is more complicated.Carry fan structure and save cooling blower in addition, rotating shaft carries a centrifugal fan, simple and reliable for structure, but current collector ring aeration structure, cannot meet collector ring and the Homogeneous cooling of carbon brush and the timely and effective removing to carbon dust, cause collector ring operation troubles.
Summary of the invention
For the deficiencies in the prior art, the invention provides and a kind ofly solve carbon brush, slip ring non-uniform temperature and carbon brush, problem that slip ring, brush holder carbon dust deposit carbon dust deposition bottom particularly collector shell, make collector ring system realize few maintenance even non-maintaining, improve the double-fed wind power generator windy line structure collector ring ventilation cooling device of double-fed wind power generator reliability of operation.
For realizing the object of the invention, provide following technical scheme: double-fed wind power generator windy line structure collector ring ventilation cooling device, comprise cylindric cover body, rotating shaft in cover body, be placed on the slip ring in rotating shaft, carbon brush outside slip ring, cover body side is communicated with carbon powder collecting device, cover body inner bottom part side is provided with centrifugal fan, the sidewall that it is characterized in that cover body upper end offers the air inlet of at least one group of symmetry, air inlet is offered bottom cover body, circular arc bending baffler is provided with in described air inlet, each air inlet is divided into two wind paths, the air inlet inner deflector position of described cover body upper end is according to carbon brush quantity and the adjustment of arrangement correspondence, described cover body bottom air inlet mouth inner deflector is by wind path one tunnel guiding centrifugal fan end face, another vertically-guided cover body top, transportation work style road.
As preferably, the air inlet of cover body upper end is tangentially arranged along sidewall.
Beneficial effect of the present invention: on the basis of former collector ring ventilation cooling device, optimize the cooling structure of collector ring, adopt multichannel aeration structure, both ensure that the Homogeneous cooling of carbon brush and collector ring, effectively can remove again the carbon dust in collector shell, make collector ring system reach the even non-maintaining level of few maintenance.Effectively reduce the probability that fault occurs, improve double-fed wind power generator reliability of operation, reduce the maintenance cost of generator.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the half sectional view of Fig. 1.
Fig. 3 is the partial sectional view of Fig. 1.
Embodiment
Double-fed wind power generator windy line structure collector ring ventilation cooling device, comprise cylindric cover body 001, rotating shaft 002 in cover body 001, be placed on the slip ring 003 in rotating shaft 002, carbon brush 004 outside slip ring 003, cover body 001 side is communicated with carbon powder collecting device 005, cover body 001 inner bottom part side is provided with centrifugal fan 006, the sidewall of cover body 001 upper end offers the air inlet I of one group of symmetry, air inlet II is offered bottom cover body 001, described air inlet I, circular arc bending baffler 007 is provided with in II, by air inlet I, II is divided into two wind paths, air inlet I inner deflector 007 position of described cover body 001 upper end is according to carbon brush quantity and the adjustment of arrangement correspondence, described cover body 001 bottom air inlet mouth II inner deflector 007 is by wind path one tunnel guiding centrifugal fan 006 end face, another vertically-guided cover body 001 top, transportation work style road.The air inlet I of cover body 001 upper end is tangentially arranged along sidewall.
The drainage of baffler 007 makes each carbon brush have enough air to cool it, ensures each phase carbon brush 004 homogeneous temperature.Baffler 007 impairs the mutual interference of both sides, top air intake, reduces the turbulent flow of air-flow in collector shell 001, reduces the accumulation of carbon dust on carbon brush, slip ring and brush holder.Air-flow is divided into two-way by a bending baffler 007 by cover body 001 bottom air inlet mouth II.After wherein a road air-flow enters collector shell, through 90 degree of turnings, flow along collector shell wall toward centrifugal fan end.This air-flow does not participate in the cooling of slip ring and carbon brush, mainly plays a part to brush collector shell bottom deposit carbon dust.An other transportation work style vertically enters in collector shell, can avoid the deposition of carbon dust in collector shell corner.The windy line structure collector ring ventilation cooling device of the present invention's design can not only make heat generating components be cooled uniformly, and is conducive to carbon dust eliminating, the convenient maintenance to collector ring and carbon dust cleaning work.This collector ring system adopts pocket type carbon powder collecting device, can effectively improve carbon dust collecting amount, and be conducive to the ventilation of collector ring system.
Collector ring inner structure also comprises carbon powder collecting device 005, rotor junction box 008, pocket type carbon powder collecting device 009, insulation strut 010, conducting rod 011, its mounting structure of brush holder 012 are mounting structure conventional in prior art, just no longer repeated description in the application, those skilled in the art all know.
Claims (2)
1. double-fed wind power generator windy line structure collector ring ventilation cooling device, comprise cylindric cover body, rotating shaft in cover body, be placed on the slip ring in rotating shaft, carbon brush outside slip ring, cover body side is communicated with carbon powder collecting device, cover body inner bottom part side is provided with centrifugal fan, the sidewall that it is characterized in that cover body upper end offers the air inlet of at least one group of symmetry, air inlet is offered bottom cover body, circular arc bending baffler is provided with in described air inlet, each air inlet is divided into two wind paths, the air inlet inner deflector position of described cover body upper end is according to carbon brush quantity and the adjustment of arrangement correspondence, described cover body bottom air inlet mouth inner deflector is by wind path one tunnel guiding centrifugal fan end face, another vertically-guided cover body top, transportation work style road.
2. double-fed wind power generator according to claim 1 windy line structure collector ring ventilation cooling device, is characterized in that the air inlet of cover body upper end is tangentially arranged along sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410776530.5A CN104578598A (en) | 2014-12-17 | 2014-12-17 | Multi-air path-structure collector ring ventilating and cooling device of doubly-fed wind generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410776530.5A CN104578598A (en) | 2014-12-17 | 2014-12-17 | Multi-air path-structure collector ring ventilating and cooling device of doubly-fed wind generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104578598A true CN104578598A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410776530.5A Pending CN104578598A (en) | 2014-12-17 | 2014-12-17 | Multi-air path-structure collector ring ventilating and cooling device of doubly-fed wind generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104578598A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046341A (en) * | 2016-10-30 | 2017-08-15 | 国电联合动力技术(宜兴)有限公司 | Double-feed wind motor collector ring system and bearing ventilation cooling device |
| CN107565765A (en) * | 2017-10-11 | 2018-01-09 | 东方电气集团东方电机有限公司 | A kind of carbon powder of generator collection device and collection method |
| CN107976628A (en) * | 2017-11-22 | 2018-05-01 | 三集团有限公司北京分公司 | Collector ring experimental rig, collector ring pilot system and test method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61214743A (en) * | 1985-03-20 | 1986-09-24 | Hitachi Ltd | Collector ring chamber cooling ventilating mechanism of rotary electric machine |
| CN1606215A (en) * | 2003-10-10 | 2005-04-13 | 株式会社日立制作所 | Cooling device of current collector |
| CN201594781U (en) * | 2009-08-24 | 2010-09-29 | 山西防爆电机（集团）有限公司 | Heat dissipation and carbon powder prevention device of motor collecting ring component |
| CN201956813U (en) * | 2011-02-23 | 2011-08-31 | 中科盛创（青岛）电气有限公司 | Generator dividing slip ring chamber ventilation structure |
| CN204290625U (en) * | 2014-12-17 | 2015-04-22 | 国电联合动力技术(宜兴)有限公司 | Double-fed wind power generator windy line structure collector ring ventilation cooling device |
-
2014
- 2014-12-17 CN CN201410776530.5A patent/CN104578598A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61214743A (en) * | 1985-03-20 | 1986-09-24 | Hitachi Ltd | Collector ring chamber cooling ventilating mechanism of rotary electric machine |
| CN1606215A (en) * | 2003-10-10 | 2005-04-13 | 株式会社日立制作所 | Cooling device of current collector |
| CN201594781U (en) * | 2009-08-24 | 2010-09-29 | 山西防爆电机（集团）有限公司 | Heat dissipation and carbon powder prevention device of motor collecting ring component |
| CN201956813U (en) * | 2011-02-23 | 2011-08-31 | 中科盛创（青岛）电气有限公司 | Generator dividing slip ring chamber ventilation structure |
| CN204290625U (en) * | 2014-12-17 | 2015-04-22 | 国电联合动力技术(宜兴)有限公司 | Double-fed wind power generator windy line structure collector ring ventilation cooling device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046341A (en) * | 2016-10-30 | 2017-08-15 | 国电联合动力技术(宜兴)有限公司 | Double-feed wind motor collector ring system and bearing ventilation cooling device |
| CN107565765A (en) * | 2017-10-11 | 2018-01-09 | 东方电气集团东方电机有限公司 | A kind of carbon powder of generator collection device and collection method |
| CN107565765B (en) * | 2017-10-11 | 2023-10-20 | 东方电气集团东方电机有限公司 | Generator carbon powder collecting device and collecting method |
| CN107976628A (en) * | 2017-11-22 | 2018-05-01 | 三集团有限公司北京分公司 | Collector ring experimental rig, collector ring pilot system and test method |
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Application publication date: 20150429 |