CN108110954A - A kind of cooling system of positive voltage type anti-explosion generator - Google Patents
A kind of cooling system of positive voltage type anti-explosion generator Download PDFInfo
- Publication number
- CN108110954A CN108110954A CN201711336806.8A CN201711336806A CN108110954A CN 108110954 A CN108110954 A CN 108110954A CN 201711336806 A CN201711336806 A CN 201711336806A CN 108110954 A CN108110954 A CN 108110954A
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- Prior art keywords
- cooling system
- cooling
- cooler
- ventilating duct
- generator
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Classifications
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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
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
- H02K9/12—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of cooling systems of positive voltage type anti-explosion generator, the positive voltage type anti-explosion brushless excitation synchronous generator includes engine block and exciter body, the cooling system include interior circulating cooling system and external circulation cooling system, the interior circulating cooling system include vapour end ventilating duct, vapour end aerofoil fan, vapour end core end plate, rotor air gap, stator core ventilating duct, hollow cooler, encourage end core end plate, encourage end aerofoil fan, encourage end ventilating duct, excitation system guide duct；Cooling system has the interior circulation cooling mechanism of optimization in the present invention, cooling efficiency can be effectively improved, symmetric form wind path can reduce windage, increase ventilation quantity, preferably reduce operation noise, and it is easy to maintain, use cost is low, can effectively ensure that the reliability service of generator.
Description
Technical field
The present invention relates to electrical generator fields, more particularly to a kind of cooling of positive voltage type anti-explosion brushless excitation synchronous generator
System.
Background technology
Positive voltage type anti-explosion brushless excitation synchronous generator is hindered by forming sufficiently large gas positive pressure power in generator
Only extraneous explosion substance enters in generator body body, reaches explosion-proof requirement, can be applied to colliery, chemical plant, natural gas are opened
The place of the explosive danger such as stope, natural gas transportation station, gas station, oil plant, flour/cotton/linen processing factory, for hair
The cooling of motor has higher requirement.The cooling system of positive voltage type anti-explosion brushless excitation synchronous generator, which is generally divided into, is divided into interior follow
Ring cooling system and external circulation cooling system；Interior circulating cooling system generally use centrifugal fan unilateral side wind path, in high-capacity positive
Since caloric value is big in the explosion-proof brushless excitation synchronous generator of die mould, there are interior wind path deficiency in draught, wind field is unevenly distributed, and is held
The problem of easily formation dead zone, generator windings end region temperature is high；External circulation cooling system generally use cooling water recirculation system, it is cold
But water circulation system cooling efficiency is higher, but needs mating entire circulation, including circulating water pool, cooling tower, cycling
Water pump, filter device, pipeline laying and mating pipeline fittings instrument etc., cost of investment is higher and is restricted by water source.
With the development in market, the deficienter place in water source is to the needs of positive voltage type anti-explosion brushless excitation synchronous generator
Increasing, positive voltage type anti-explosion brushless excitation synchronous generator external circulation cooling system becomes first choice using the absolutely empty type of cooling.
Although the current absolutely empty type of cooling can reduce the dependence to water resource, investment reduction cost is limited by environment temperature
Influence, circulatory system cooling efficiency is relatively low, can not meet large capacity positive voltage type anti-explosion brushless excitation synchronous generator heat dissipation need
It will；The heat-removal modalities generally use engine block forced ventilation machine form carries out air feed simultaneously, and live noise is larger, Wu Faman
Toe ring guaranteed request, external circulation cooling system will also necessarily refer to the explosion-proof of electrical equipment using body forced ventilation machine form and want
It asks, design difficulty is larger.Chinese utility model patent ZL 201320820475.6 discloses a kind of Ex "p" enclosure three-phase synchronous
Generator, i.e., a kind of positive voltage type anti-explosion synchronous generator it discloses cooler is arranged at the top of generator, but do not relate to
And the improvement of cooling system.
The content of the invention
In order to overcome the shortcomings of existing positive voltage type anti-explosion brushless excitation synchronous generator cooling system, the present invention carries
For a kind of cooling system of positive voltage type anti-explosion brushless excitation synchronous generator, cooling efficiency can be effectively improved, is overcome pair
The dependence at water source, and further improve the security of generator.To achieve the above object, the technical solution adopted by the present invention
For：
The positive voltage type anti-explosion brushless excitation synchronous generator includes engine block and exciter body, the cooling system
System includes interior circulating cooling system and external circulation cooling system, it is characterised in that：The interior circulating cooling system includes vapour end
Ventilating duct, vapour end aerofoil fan, rotor air gap, stator core ventilating duct, hollow cooler, encourage end iron at vapour end core end plate
Core end plate encourages end aerofoil fan, encourages end ventilating duct, excitation system guide duct, and vapour end ventilating duct encourages end ventilating duct respectively positioned at hair
Both ends, unicom hollow cooler and the engine block of motor body, vapour end aerofoil fan and encourage end aerofoil fan be symmetrical arranged,
It being coaxially mounted in generator rotation axis, vapour end core end plate encourages and core end plate is held to offer ventilation hole in the axial direction,
Rotor air gap is arranged between the stator of generator and rotor, and stator core ventilating duct is radially disposed in stator core, is encouraged
Magnetic system guide duct unicom engine block and exciter body.
Further, the hollow cooler is arranged on the top of engine block, including cooler center keep out the wind every
Plate, absolutely empty cooling heat exchanger tube, cooler both sides wind blocker, cooler casing, cooler center wind blocker, cooler both sides
The pipe external space of wind blocker and absolutely empty cooling heat exchanger tube forms the heat exchange ventilating duct of hot-air.
Further, the external circulation cooling system is duct type forced ventilation sky cooling recirculation system, including air
Filter, low noise ventilator, noise reduction air inlet duct, it is absolutely empty cooling heat exchanger tube, noise reduction exhaust passage, it is absolutely empty cooling heat exchanger tube pipe in
Space forms the heat exchange ventilating duct of cooling air.
Further, low noise ventilator, air filter are arranged in outdoor non-explosion-proof area.
Further, cooler casing, noise reduction air inlet duct and noise reduction exhaust passage set quieter material on inner wall.
The absolutely empty type of cooling used in the present invention, dependence of the customer service to water source, has expanded brushless excitation synchronous generator
The suitable environment of machine, reduces use cost；Interior circulation cooling mechanism with optimization, cooling efficiency is high, it is easily operated safeguard,
Use cost is low, and symmetric form wind path can reduce windage, increase ventilation quantity, and can preferably reduce operation noise；It follows outside
In ring cooling system, low noise ventilator, air filter are arranged in outdoor non-explosion-proof area, not only can further reduce fortune
Row noise, and be independent of each other with the positive pressure enclosure space of engine block, improve the positive-pressure explosion-proof performance of generator entirety.
Description of the drawings
Fig. 1 is the structure chart of interior circulating cooling system in cooling system in the present invention；
Fig. 2 is the structure chart of external circulation cooling system in cooling system in the present invention.
Specific embodiment
The present invention relates to a kind of cooling systems of positive voltage type anti-explosion brushless excitation synchronous generator, are applicable to various models
Positive voltage type anti-explosion brushless excitation synchronous generator；The overall structure of cooling system in the present invention is as shown in attached drawing 1, Fig. 2, institute
The cooling system stated includes interior circulating cooling system and external circulation cooling system.
The structure of internal circulation system is specific as shown in Figure 1, the interior circulating cooling system includes vapour end ventilating duct 1, vapour
Hold aerofoil fan 2, vapour end core end plate 4, rotor air gap 3, stator core ventilating duct 5, cooler center wind blocker 6, sky
Empty cooler, cooler both sides wind blocker 8 encourage end core end plate 9, encourage end aerofoil fan 10, encourage end ventilating duct 11, excitation system
System guide duct 12；Vapour end core end plate 4 encourages end core end plate 9 reserved ventilation hole in the axial direction, is radiated with winding overhang
It uses；Vapour end ventilating duct 1 encourages both ends, unicom hollow cooler and generator that end ventilating duct 11 is located at engine block respectively
Body, rotor air gap 3 are arranged between the stator of generator and rotor, and stator core ventilating duct 5 is radially disposed at stator iron
In core, excitation system guide duct unicom engine block and exciter body, vapour end aerofoil fan 2 and encourage end aerofoil fan 10 it is right
Claim to set, be coaxially mounted in generator rotation axis；By the air of hollow cooler cooling by vapour end ventilating duct 1, encourage end and lead
Air duct 11 enters engine block, generates the moving air of turbulent flow by the rotation of generator, the air of flowing respectively enters vapour
It holds core end plate 4 and encourages end core end plate 9, rotor air gap 3, stator core ventilating duct 5 and generator windings and iron core and carry out
Heat exchange, and excitation system guide duct 12 can be led to, excitation system is cooled down into exciter body.
The said structure that interior circulating cooling system uses in the present invention, wind field are evenly distributed, and heat exchange is abundant, and end leads to heat
The design in hole solve thes problems, such as that End winding temperature raises, and can effectively improve cooling efficiency；Using symmetric form wind path
Windage, stronger ventilation amount can not only be reduced, improve radiating efficiency, making an uproar for moving air Xun Huan generation can also be effectively reduced
Sound.
The hollow cooler is arranged on the top of engine block, hollow cooler including cooler center keep out the wind every
Plate, absolutely empty cooling heat exchanger tube 7, cooler both sides wind blocker, cooler casing, cooler center wind blocker, cooler two
The pipe external space of side wind blocker and absolutely empty cooling heat exchanger tube 7 forms the heat exchange ventilating duct of hot-air, in generator band
The hot-air for walking generator heat finally flows into cooler wind blocker, the ventilating duct that absolutely empty cooling heat exchanger tube 7 is formed, and heat is empty
It is flowed in the gap that gas arranges outside absolutely empty cooling heat exchanger tube 7, hot friendship is carried out by tube wall with the cold air of tube interior
It changes；After hot-air cooling again through vapour end ventilating duct 1, encourage end ventilating duct 11 and form in generator into generator
It cycles in portion；More than heat exchange structure, it is ensured that the abundant heat exchange of hot-air and cooled external air improves the heat exchange of cooling system
Efficiency.
The structure of external circulating system is specific as shown in Fig. 2, the external circulation cooling system is empty for duct type forced ventilation
Cooling recirculation system, including air filter 17, low noise ventilator 16, noise reduction air inlet duct 15, absolutely empty cooling heat exchanger tube 7, drop
It makes an uproar exhaust passage 14, space forms the heat exchange ventilating duct of cooling air in the pipe of absolutely empty cooling heat exchanger tube 7；Cooling air passes through low
Cooling air is sucked air filter 17 by suction function and is filtered, subsequently into drop by the operation of noise ventilator 16
Make an uproar air inlet duct 15, cooling air absolutely empty cooling heat exchanger tube 7 internal flow, by tube wall and generator in flow process
The flowing hot-air in portion carries out heat exchange, is discharged into air finally by noise reduction exhaust passage 14, completes the outer circulation of cooling air
Journey；In above process, reduction can be effectively reduced by the use of multiple noise reducing apparatus external circulating system is running makes an uproar
Sound.
In the present invention, it is also contemplated that low noise ventilator 16, air filter 17 are arranged in outdoor non-explosion-proof area,
Operation noise not only can be further reduced, the also positive pressure enclosure space with engine block is independent of each other, and improves generator
Whole positive-pressure explosion-proof performance；And it solves the cross-mixing of generator scene air environment temperature, reduces due to ventilation blower
Etc. generator-temperature detection caused by the use of equipment rise.
In the present invention, specific noise reduction means have, in cooler casing, noise reduction air inlet duct 15 and noise reduction exhaust passage 14
On inner wall by pasting, coating, the means such as interlayer quieter material 13 is set, preferable drop can be reached in a manner of relatively inexpensive
It makes an uproar effect；In addition, increasingly complex noise reduction means can be also used as needed.
Although describing the present invention according to specific embodiment, according to teaching herein, those skilled in the art couple
It is also obvious that the present invention, which makes other modes modification,.Protection scope of the present invention is limited with the scope of claims,
But other and technical solution of the claims in the present invention without essential distinction, also should be in protection scope of the present invention.
Claims (5)
1. a kind of cooling system of positive voltage type anti-explosion brushless excitation synchronous generator, the positive voltage type anti-explosion brushless excitation is synchronous
Generator includes engine block and exciter body, and the cooling system includes interior circulating cooling system and outer circulation cools down
System, it is characterised in that：The interior circulating cooling system include vapour end ventilating duct, vapour end aerofoil fan, vapour end core end plate,
Rotor air gap, stator core ventilating duct, hollow cooler, encourage end core end plate, encourage end aerofoil fan, encourage end ventilating duct, encourage
Magnetic system guide duct, vapour end ventilating duct encourage end ventilating duct respectively positioned at the both ends of engine block, unicom hollow cooler and hair
Motor body, vapour end aerofoil fan are symmetrical arranged, are coaxially mounted in generator rotation axis with end aerofoil fan is encouraged, vapour end iron core
End plate encourages and core end plate is held to offer ventilation hole in the axial direction, and rotor air gap is arranged on the stator of generator and turns
Between son, stator core ventilating duct is radially disposed in stator core, excitation system guide duct unicom engine block and excitation
Machine body.
2. cooling system as described in claim 1, it is characterised in that：The hollow cooler is arranged on generator
The top of body, hollow cooler includes cooler center wind blocker, absolutely empty cooling heat exchanger tube, cooler both sides are kept out the wind every
Plate, cooler casing, cooler center wind blocker, the pipe external space of cooler both sides wind blocker and absolutely empty cooling heat exchanger tube
Form the heat exchange ventilating duct of hot-air.
3. cooling system as claimed in claim 1 or 2, it is characterised in that：The external circulation cooling system is strong for duct type
Compel the empty cooling recirculation system of ventilation, including air filter, low noise ventilator, noise reduction air inlet duct, absolutely empty cooling heat exchanger tube, drop
It makes an uproar exhaust passage, space forms the heat exchange ventilating duct of cooling air in the pipe of absolutely empty cooling heat exchanger tube.
4. cooling system as claimed in claim 2, it is characterised in that：Low noise ventilator, air filter are arranged in outdoor
Non- explosion-proof area.
5. such as claim 1,2 or 4 any one of them cooling systems, it is characterised in that：Cooler casing, noise reduction air inlet duct and
Noise reduction exhaust passage sets quieter material on inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711336806.8A CN108110954A (en) | 2017-12-14 | 2017-12-14 | A kind of cooling system of positive voltage type anti-explosion generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711336806.8A CN108110954A (en) | 2017-12-14 | 2017-12-14 | A kind of cooling system of positive voltage type anti-explosion generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108110954A true CN108110954A (en) | 2018-06-01 |
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ID=62216923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711336806.8A Pending CN108110954A (en) | 2017-12-14 | 2017-12-14 | A kind of cooling system of positive voltage type anti-explosion generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108110954A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736650A (en) * | 2018-07-12 | 2018-11-02 | 哈尔滨电气动力装备有限公司 | Side water cool ventilation cooling structure for large-scale dc motor |
| CN112234765A (en) * | 2020-10-10 | 2021-01-15 | 安徽理工大学 | Novel converter PMSM integration is equipped |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007135306A (en) * | 2005-11-10 | 2007-05-31 | Fuji Electric Systems Co Ltd | Cooling device for rotary electric machine equipped with permanent magnet |
| CN102983678A (en) * | 2012-11-14 | 2013-03-20 | 哈尔滨电机厂有限责任公司 | Electric generator cooling wind path structure |
| CN104362798A (en) * | 2014-11-25 | 2015-02-18 | 南阳防爆集团股份有限公司 | Air-air cooling brushless excitation synchronous motor |
| CN205178768U (en) * | 2015-12-08 | 2016-04-20 | 哈尔滨电气动力装备有限公司 | Large -scale brushless excitation motor cooling structure |
| CN106505796A (en) * | 2016-12-09 | 2017-03-15 | 戢平 | Electromotor cooling air duct structure |
| CN207801673U (en) * | 2017-12-14 | 2018-08-31 | 卧龙电气集团股份有限公司 | A kind of cooling system of positive voltage type anti-explosion brushless excitation synchronous generator |
-
2017
- 2017-12-14 CN CN201711336806.8A patent/CN108110954A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007135306A (en) * | 2005-11-10 | 2007-05-31 | Fuji Electric Systems Co Ltd | Cooling device for rotary electric machine equipped with permanent magnet |
| CN102983678A (en) * | 2012-11-14 | 2013-03-20 | 哈尔滨电机厂有限责任公司 | Electric generator cooling wind path structure |
| CN104362798A (en) * | 2014-11-25 | 2015-02-18 | 南阳防爆集团股份有限公司 | Air-air cooling brushless excitation synchronous motor |
| CN205178768U (en) * | 2015-12-08 | 2016-04-20 | 哈尔滨电气动力装备有限公司 | Large -scale brushless excitation motor cooling structure |
| CN106505796A (en) * | 2016-12-09 | 2017-03-15 | 戢平 | Electromotor cooling air duct structure |
| CN207801673U (en) * | 2017-12-14 | 2018-08-31 | 卧龙电气集团股份有限公司 | A kind of cooling system of positive voltage type anti-explosion brushless excitation synchronous generator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736650A (en) * | 2018-07-12 | 2018-11-02 | 哈尔滨电气动力装备有限公司 | Side water cool ventilation cooling structure for large-scale dc motor |
| CN108736650B (en) * | 2018-07-12 | 2023-12-26 | 哈尔滨电气动力装备有限公司 | Side water-cooling ventilation cooling structure for large direct-current motor |
| CN112234765A (en) * | 2020-10-10 | 2021-01-15 | 安徽理工大学 | Novel converter PMSM integration is equipped |
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