CN109347254A - The directly cooling doubly-fed wind turbine of air - Google Patents
The directly cooling doubly-fed wind turbine of air Download PDFInfo
- Publication number
- CN109347254A CN109347254A CN201811291012.9A CN201811291012A CN109347254A CN 109347254 A CN109347254 A CN 109347254A CN 201811291012 A CN201811291012 A CN 201811291012A CN 109347254 A CN109347254 A CN 109347254A
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- CN
- China
- Prior art keywords
- air
- doubly
- fed wind
- wind turbine
- bellows chamber
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention relates to doubly-fed wind turbines, the specially directly cooling doubly-fed wind turbine of air.Solving the problems, such as the conventional chilling of doubly-fed wind turbine, structure is complicated, at high cost.The doubly-fed wind turbine includes doubly-fed wind turbine ontology；The protection bellows chamber directly cooling for air is configured in doubly-fed wind turbine body upper part, protecting bellows chamber includes bellows chamber ontology, the birdsmouth for being provided with air inlet and outlet on bellows chamber ontology and being connect with doubly-fed wind turbine ontology, air filter is provided on air inlet, bellows chamber chamber body is equipped with ventilating duct, the local edge of the local edge and birdsmouth open at one end of ventilating duct is tightly connected, another end opening of ventilating duct is connected to air outlet, so that bellows chamber chamber body and wind-guiding tube inner chamber be made to completely cut off in the mutual air-flow of bellows chamber body interior.Good cooling results of the present invention, light-weight, low noise, at low cost, high reliablity.
Description
Technical field
The present invention relates to doubly-fed wind turbines, the specially directly cooling doubly-fed wind turbine of air.
Background technique
With the development of wind driven generator technology, generator capacity is increasing, and calorific value is also higher and higher, needs to configure
The cooling device of corresponding larger capacity is used to cool down generator, prevents generator from breaking down, and extends power generation
The service life of machine；With the continuous increase of generator power grade incrementally increased with wind-powered electricity generation industry cost pressure, rationally control
Winding temperature rise processed improves motor reliability, reduces the road that cost of wind power generation has become numerous main engine plants and electrical machinery plant's selection,
It is the technical problem for having to solve.
Currently, the cooling structure of doubly-fed wind turbine is mainly hollow cooler, air/water cooler and water jacket cooling three
Kind primary structure.
Hollow cooler is the major way of the existing cooling structure of doubly-fed wind turbine, and main operational principle is,
It pushes up under drive blower effect, one time wind path is recycled inside motor, and hot-air and air cooler aluminum pipe outer wall carry out heat exchange；?
Under axial flow blower effect, the cold wind of secondary wind path passes through aluminum pipe to air outlet by air inlet, and air outlet passes through hose for hot wind
It leads to outside cabin.Cooling medium is air, easy to operate, but heat exchange property is limited, meanwhile, because with axis stream or top wind dispelling
Machine, at high cost, noise is big, fan trouble rate is high.
Air/water cooler is broadly divided into cooler ontology and cooler core, and core is copper (aluminium) pipe fin structure.Mainly
Working principle is that interior wind path is recycled inside motor, and hot-air is cooled down through radiators such as air cooler fins, external water
Road is recycled by water pump system, and the heat that radiator absorbs is taken away.The cooling medium of air/water cooler be ethylene glycol and
The mixture of water needs special water pump system, more demanding to cooler welding, and the heat exchange property of air/water cooler is high,
It can satisfy powerful generator heat transfer requirements, but higher cost, fan trouble rate are high.
Water jacket is cooled to motor body and carries a kind of water circulating cooling mode, general that cooling jacket realization is arranged by base
Heat sinking function, cooling jacket inside cooling medium are provided by the water pump system of alone cycle, and water jacket is directly contacted with stator core
Heat transfer, rotor transmit heat by inner air circulation and air gap.Water jacket base processing technology is complicated, need to be equipped with a set of water circulation
System, it is at high cost.
Summary of the invention
The present invention solves the problems, such as the conventional chilling of doubly-fed wind turbine, and structure is complicated, at high cost, provides a kind of air
Directly cooling doubly-fed wind turbine.The cooling structure of the directly cooling doubly-fed wind turbine of the air have it is light-weight,
Low noise, it is at low cost, the characteristics of high reliablity.
The present invention is achieved by the following technical scheme: the doubly-fed wind turbine that air is directly cooling, including double-fed
Wind-driven generator ontology；The protection bellows chamber directly cooling for air, protection are configured in doubly-fed wind turbine body upper part
Bellows chamber includes bellows chamber ontology, the undertaking that air inlet and outlet is provided on bellows chamber ontology and is connect with doubly-fed wind turbine ontology
Mouthful, air filter is provided on air inlet, bellows chamber chamber body is equipped with ventilating duct, the local edge open at one end of ventilating duct
It is tightly connected with the local edge of birdsmouth, another end opening of ventilating duct is connected to air outlet, to make bellows chamber chamber body
Completely cut off with wind-guiding tube inner chamber in the mutual air-flow of bellows chamber body interior；Bellows chamber is protected to pass through its birdsmouth and doubly-fed wind turbine sheet
Correspondence birdsmouth sealing on body is butted against and fixed, so that the connection for completing protection bellows chamber and doubly-fed wind turbine ontology is solid
It is fixed.When work, cold air is sucked in bellows chamber ontology by the air filter on air inlet, then enters double-fed wind-force through birdsmouth
It is cooled down inside engine block, the rotation forces air flowing of doubly-fed wind turbine ontology rotor itself, shape after cooling
At hot wind be pressed into ventilating duct and be discharged through air outlet, and complete the air-cooled circulation in motor.
The present invention gives a kind of directly cooling doubly-fed wind turbine of air, cold air by protection bellows chamber directly into
Enter and is cooled down inside motor；The present invention reduces Cooler Fault rate, reliably without secondary wind path, shaftless stream and top drive blower
Property it is high, cold wind is directly entered inside motor and is cooled down, good cooling results；Light-weight, low noise is at low cost, high reliablity.This
Advanced development is completed in invention, and good manufacturability, structure are simple, and mounting structure is general, and dismounting filter is convenient, maintainable good.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram for protecting bellows chamber；
Fig. 3 is the rearview of Fig. 2；
Fig. 4 is the bottom view of Fig. 2；
Fig. 5 is the schematic diagram of internal structure for protecting bellows chamber；
Fig. 6 is the stand structure schematic diagram of doubly-fed wind turbine ontology；
Fig. 7 is the structural schematic diagram of arc wind-guiding frid.
In figure: 1- bellows chamber ontology, 2- ventilating duct, 3- frame, 4- filter cotton, 5- buckle, 6- guide wire, 7- pressure
Gap sensor, 8- air outlet strainer, 9- protect strainer, 10- doubly-fed wind turbine ontology, 11- arc wind-guiding frid.
Specific embodiment
The directly cooling doubly-fed wind turbine of air, including doubly-fed wind turbine ontology 10；In double-fed wind generating
Machine body upper part is configured with for the directly cooling protection bellows chamber of air, and protection bellows chamber includes bellows chamber ontology 1, on bellows chamber ontology 1
The birdsmouth for being provided with air inlet and outlet and connecting with doubly-fed wind turbine ontology 10 is provided with air filtration on air inlet
Device, 1 inner cavity of bellows chamber ontology are equipped with ventilating duct 2, and the local edge of the local edge and birdsmouth open at one end of ventilating duct 2 seals
Connection, another end opening of ventilating duct 2 are connected to air outlet, to make 1 inner cavity of bellows chamber ontology and 2 inner cavity of ventilating duct in bellows chamber sheet
The mutually air-flow isolation of 1 inside of body；Bellows chamber is protected to pass through its birdsmouth and the corresponding birdsmouth on doubly-fed wind turbine ontology 10
Sealing is butted against and fixed, to complete being connected and fixed for protection bellows chamber and doubly-fed wind turbine ontology.When it is implemented, double-fed
The base of wind-driven generator ontology 10 is the box base in the efficient air duct with arc water conservancy diversion, doubly-fed wind turbine ontology 10
Base in the middle part of be provided with arc wind-guiding frid 11, flowed with increasing air doubly-fed wind turbine ontology 10 inside.Double-fed
The base inner surface of wind-driven generator ontology 10 installs silencing cotton, and noise is effectively reduced.
Bellows chamber ontology 1 is rectangular-shape or class rectangular-shape, the bellows chamber ontology 1 of cuboid or class rectangular-shape it is forward and backward,
Air inlet is provided on left side, wherein each on front and rear end there are three air inlet, the bellows chamber ontologies of cuboid or class rectangular-shape
It is provided with air outlet on 1 right side, bottom surface generally birdsmouth (the i.e. bottom surface of the bellows chamber ontology 1 of cuboid or class rectangular-shape
For opened type, or it is no bottom surface), ventilating duct 2 is the fan housing that open at one end, the other end gradually close up upwards, the opening of fan housing
Front and rear edges and birdsmouth front and rear edges be tightly connected, closing in one end of fan housing is connected to air outlet.Air filter by
Frame 3 and the filter cotton 4 being fixed in frame 3 are constituted；Buckle 5 is laid on frame 3, air inlet edge is equipped with and buckle 5
The corresponding grab in position realizes fixation of the air filter on air inlet by the cooperation of buckle 5 and grab.Connect on air outlet
It is connected to guide wire 6, the end of guide wire 6 is provided with air outlet strainer 8, posts silencing cotton on the inside of air outlet strainer, reaches drop
It makes an uproar purpose.The lateral wall of bellows chamber ontology 1 is equipped with differential pressure pickup 7, for detecting the inside and outside differential pressure of bellows chamber ontology 1, monitors air
Filter resistance needs to change or cleans filter cotton when resistance reaches certain value；To prevent foreign matter in assembling process from entering motor
Inside, the non-ventilating duct 2 of birdsmouth, which occupies, is provided with protection strainer 9 on part, reaches IP23 requirement of shelter.
Claims (10)
1. a kind of directly cooling doubly-fed wind turbine of air, including doubly-fed wind turbine ontology (10)；It is characterized in that,
The protection bellows chamber directly cooling for air is configured in doubly-fed wind turbine body upper part, protection bellows chamber includes bellows chamber ontology
(1), the birdsmouth for being provided with air inlet and outlet on bellows chamber ontology (1) and being connect with doubly-fed wind turbine ontology (10), air inlet
Air filter is provided on mouthful, bellows chamber ontology (1) inner cavity is equipped with ventilating duct (2), the local edge open at one end of ventilating duct (2)
The local edge of edge and birdsmouth is tightly connected, and another end opening of ventilating duct (2) is connected to air outlet, to make bellows chamber ontology
(1) inner cavity and ventilating duct (2) inner cavity completely cut off in the internal mutually air-flow of bellows chamber ontology (1)；Bellows chamber is protected to pass through its birdsmouth and double
Correspondence birdsmouth sealing in feedback wind-driven generator ontology (10) is butted against and fixed, to complete protection bellows chamber and double-fed wind-force hair
Motor body is connected and fixed.
2. the directly cooling doubly-fed wind turbine of air according to claim 1, which is characterized in that double-fed wind generating
The base of machine ontology (10) is the box base in the efficient air duct with arc water conservancy diversion.
3. the directly cooling doubly-fed wind turbine of air according to claim 2, which is characterized in that double-fed wind generating
Arc wind-guiding frid (11) is provided in the middle part of the base of machine ontology (10).
4. the directly cooling doubly-fed wind turbine of air according to claim 1 or 2 or 3, which is characterized in that bellows chamber sheet
Body (1) is rectangular-shape or class rectangular-shape, is opened on the forward and backward of bellows chamber ontology (1) of cuboid or class rectangular-shape, left side
There is an air inlet, is provided with air outlet, cuboid or class cuboid on the right side of the bellows chamber ontology (1) of cuboid or class rectangular-shape
The bottom surface generally birdsmouth of the bellows chamber ontology (1) of shape, the wind that ventilating duct (2) is open at one end, the other end gradually closes up upwards
The front and rear edges of cover, the open front and rear edges and birdsmouth of fan housing is tightly connected, and closing in one end of fan housing is connected to air outlet.
5. the directly cooling doubly-fed wind turbine of air according to claim 4, which is characterized in that air filter by
Frame (3) and the filter cotton (4) being fixed in frame (3) are constituted.
6. the directly cooling doubly-fed wind turbine of air according to claim 5, which is characterized in that on frame (3)
It is laid with buckle (5), air inlet edge is equipped with grab corresponding with buckle (5) position, real by the cooperation of buckle (5) and grab
Existing fixation of the air filter on air inlet.
7. the directly cooling doubly-fed wind turbine of air according to claim 6, which is characterized in that connected on air outlet
Have guide wire (6), the end of guide wire (6) is provided with air outlet strainer (8).
8. the directly cooling doubly-fed wind turbine of air according to claim 7, which is characterized in that air outlet strainer
(8) silencing cotton is posted on the inside of；The base inner surface of doubly-fed wind turbine ontology 10 installs silencing cotton.
9. the directly cooling doubly-fed wind turbine of air according to claim 1 or 2 or 3, which is characterized in that bellows chamber sheet
The lateral wall of body (1) is equipped with differential pressure pickup (7), for detecting the inside and outside differential pressure of bellows chamber ontology (1).
10. the directly cooling doubly-fed wind turbine of air according to claim 9, which is characterized in that birdsmouth it is non-
Ventilating duct (2), which occupies, is provided with protection strainer (9) on part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811291012.9A CN109347254A (en) | 2018-10-31 | 2018-10-31 | The directly cooling doubly-fed wind turbine of air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811291012.9A CN109347254A (en) | 2018-10-31 | 2018-10-31 | The directly cooling doubly-fed wind turbine of air |
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| CN109347254A true CN109347254A (en) | 2019-02-15 |
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| CN201811291012.9A Pending CN109347254A (en) | 2018-10-31 | 2018-10-31 | The directly cooling doubly-fed wind turbine of air |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697736A (en) * | 2020-06-12 | 2020-09-22 | 西安中车永电捷力风能有限公司 | Axial ventilation direct cooling type double-fed wind driven generator |
| CN111943008A (en) * | 2020-08-21 | 2020-11-17 | 安徽迅立达电梯有限公司 | Adjusting device for elevator traction machine and working method thereof |
| CN112012893A (en) * | 2020-08-20 | 2020-12-01 | 远景能源有限公司 | Cooling system of wind driven generator |
| CN112809222A (en) * | 2020-12-30 | 2021-05-18 | 西安中车永电捷力风能有限公司 | Megawatt wind driven generator base and welding assembly method thereof |
| WO2021103685A1 (en) * | 2019-11-28 | 2021-06-03 | 北京金风科创风电设备有限公司 | Filtering device, generator and wind turbine generator system |
| CN113067429A (en) * | 2021-02-26 | 2021-07-02 | 西安中车永电捷力风能有限公司 | Cooling noise reduction structure and wind driven generator |
| CN114323517A (en) * | 2021-12-13 | 2022-04-12 | 陕西航空电气有限责任公司 | Generator environment test system dragged by rigid shaft |
| CN114337099A (en) * | 2022-01-11 | 2022-04-12 | 浙江尔格科技股份有限公司 | Direct-connection air cooling device for self-cleaning wind driven generator |
| CN114362443A (en) * | 2022-01-13 | 2022-04-15 | 浙江尔格科技股份有限公司 | Direct cooler of wind driven generator |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021103685A1 (en) * | 2019-11-28 | 2021-06-03 | 北京金风科创风电设备有限公司 | Filtering device, generator and wind turbine generator system |
| CN111697736A (en) * | 2020-06-12 | 2020-09-22 | 西安中车永电捷力风能有限公司 | Axial ventilation direct cooling type double-fed wind driven generator |
| CN111697736B (en) * | 2020-06-12 | 2022-05-03 | 西安中车永电捷力风能有限公司 | Axial ventilation direct cooling type double-fed wind driven generator |
| WO2022037139A1 (en) * | 2020-08-20 | 2022-02-24 | 远景能源有限公司 | Cooling system for wind power generator |
| CN112012893A (en) * | 2020-08-20 | 2020-12-01 | 远景能源有限公司 | Cooling system of wind driven generator |
| CN111943008A (en) * | 2020-08-21 | 2020-11-17 | 安徽迅立达电梯有限公司 | Adjusting device for elevator traction machine and working method thereof |
| CN112809222A (en) * | 2020-12-30 | 2021-05-18 | 西安中车永电捷力风能有限公司 | Megawatt wind driven generator base and welding assembly method thereof |
| CN112809222B (en) * | 2020-12-30 | 2022-09-09 | 西安中车永电捷力风能有限公司 | Megawatt wind driven generator base and welding assembly method thereof |
| CN113067429A (en) * | 2021-02-26 | 2021-07-02 | 西安中车永电捷力风能有限公司 | Cooling noise reduction structure and wind driven generator |
| CN113067429B (en) * | 2021-02-26 | 2023-03-03 | 西安中车永电捷力风能有限公司 | Cooling noise reduction structure and wind driven generator |
| CN114323517A (en) * | 2021-12-13 | 2022-04-12 | 陕西航空电气有限责任公司 | Generator environment test system dragged by rigid shaft |
| CN114337099A (en) * | 2022-01-11 | 2022-04-12 | 浙江尔格科技股份有限公司 | Direct-connection air cooling device for self-cleaning wind driven generator |
| CN114362443A (en) * | 2022-01-13 | 2022-04-15 | 浙江尔格科技股份有限公司 | Direct cooler of wind driven generator |
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Application publication date: 20190215 |
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