CN103151877B - Ventilation system of wind driven generator - Google Patents
Ventilation system of wind driven generator Download PDFInfo
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- CN103151877B CN103151877B CN201310106381.7A CN201310106381A CN103151877B CN 103151877 B CN103151877 B CN 103151877B CN 201310106381 A CN201310106381 A CN 201310106381A CN 103151877 B CN103151877 B CN 103151877B
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- driven generator
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Abstract
The invention discloses a ventilation system of a wind driven generator. The ventilation system comprises an internal ventilator and an external ventilator, wherein the internal ventilator consists of an inner fan and a cooler, the inner fan is arranged at the rear part of a rotating shaft and positioned in a case, and the cooler is arranged at the lower part of the case. The external ventilator consists of a volute, an outer fan, an outer cover, a wind guide device and a connecting device, wherein the volute is provided with a front air outlet and a lower port; the outer fan is arranged in the volute and arranged on the rotating shaft; the outer cover is connected with the outer side of the volute, the lower end of the cooler is communicated with an air outlet of the cooler, and the lower part of the inner side of the outer cover is communicated with an air vent of the volute; the wind guide device consists of a wind guide ring, one end of the wind guide ring is connected into the perforation of the volute, and the other end of the wind guide ring is fixedly arranged on the outer cover; and the connecting device consists of a pair of channel steel and a bottom cover plate, wherein the pair of channel steel is connected between the volute and a rear end cover, and the bottom cover plate is connected between the lower end surface of the volute and the inner sides of the pair of channel steels. The ventilation system solves the problems that the wind driven generator is large in unit capacity, small in motor volume, large in heat dissipation capacity, and high in temperature rise of a bearing at non-shaft extension end.
Description
Technical field
The present invention relates to a kind of ventilating system of wind-driven generator.
Background technology
Conventional motor cooling air duct is divided into inside and outside wind path.Outer ventilation circuit is the fan by installing at the non-shaft stretching end of rotor, rotates and produces blast, sucked by the cold air outside motor by fan, by fan housing and the bell-type cooler be arranged on outside motor, heat is delivered in ambient air; Interior wind path is by the fan being contained in the casing internal being positioned at motor, blast is become by the rotary of rotor, by the wind path interruption-forming circulation wind path of the heat of motor internal by the one-in-and-one-out of casing and cooler, by outer ventilation circuit, motor heat is directly blown to outside motor.Because the capacity of wind-driven generator is large, volume is little, and the heat distributed is large, causes the temperature rise of motor bearings too high, affects the overall performance of motor.Therefore must cool to the ventilation circuit of motor bearings one spaciousness, ensure that motor bearings temperature rise is within the scope of national standard.
Summary of the invention
The object of the invention is the defect overcoming prior art, a kind of ventilating system of wind-driven generator is provided, it can not affect under the prerequisite that motor normally runs, reduce the surface temperature rise of non-shaft stretching end bearing, thus effectively ensure that the normal operation of wind-driven generator, improve the maintenance efficiency of generator.
The technical scheme realizing above-mentioned purpose is: a kind of ventilating system of wind-driven generator, comprise interior ventilation unit and separate ventilation device, described interior ventilation unit comprises the rotating shaft rear portion that is arranged on described generator and is positioned at the internal fan of casing internal and is arranged on the cooler of described casing bottom, described separate ventilation device is arranged on outside the rear end cap of described generator, this separate ventilation device comprises spiral case, external fan, outer cover, air ducting and jockey, wherein, described spiral case has front exhaust outlet and lower port, the lateral surface of this spiral case is offered a perforation, a ventilating opening is offered in the bottom of this spiral case, described external fan to be placed in described spiral case and to be arranged in the rotating shaft of described generator, the medial surface of described outer cover is connected on the lateral surface of described spiral case, and the lower end of this outer cover is connected with the air outlet of described cooler by an air duct, and the bottom of the medial surface of this outer cover is connected with the ventilating opening of described spiral case by a flexible pipe, described air ducting comprises one and is connected in the perforation of described spiral case, and other end is fixed on the air-ducting ring on the top of the medial surface of described outer cover, described jockey comprises a pair perpendicular channel-section steel and be straightly connected between the medial surface of described spiral case and the lateral surface of described rear end cap and is connected to bottom plate between the lower surface of described spiral case and the medial surface of a pair channel-section steel.
The ventilating system of above-mentioned wind-driven generator, wherein, described separate ventilation device also comprises one and to be arranged between the lateral surface of described spiral case and the medial surface of described outer cover and to be located at the fan shroud of the periphery of described air-ducting ring.
The ventilating system of above-mentioned wind-driven generator, wherein, described outer cover is connected on the lateral surface of described spiral case by the mounting panel that its upper end connects.
The ventilating system of above-mentioned wind-driven generator, wherein, described air ducting also comprises the end cap that keeps out the wind that some screw rods and be connected in air-ducting ring are connected to screw rod other end, and this end cap that keeps out the wind is fixed on the medial surface of described outer cover.
The ventilating system of above-mentioned wind-driven generator, wherein, the lateral surface of described rear end cap is equipped with radiating ribs.
The ventilating system of above-mentioned wind-driven generator, wherein, the front and rear part of the lower surface of described casing offers a ventilating opening respectively.
The ventilating system of wind-driven generator of the present invention, adopt and a separate ventilation device is set outside the non-shaft stretching end of generator, thus form a special ventilation circuit, the cooling air of outside motor is cooled the bearing surface of motor non-shaft stretching end, reaches the object of cooling bearing.The ventilating system of wind-driven generator of the present invention not affecting under the prerequisite that motor normally runs, reduce the surface temperature rise of non-shaft stretching end bearing, thus effectively ensure that the normal operation of wind-driven generator, improve the maintenance efficiency of wind-driven generator.The ventilating system of wind-driven generator of the present invention solves wind-driven generator single-machine capacity greatly, and the volume of wind-driven generator is little, and the heat distributed is large, the problem that non-shaft stretching end bearing temperature rise is high.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the ventilating system of wind-driven generator of the present invention;
Fig. 2 is the structural representation of the separate ventilation device in the ventilating system of wind-driven generator of the present invention;
Fig. 3 is the detail of construction of the separate ventilation device of the ventilating system of wind-driven generator of the present invention.
Embodiment
In order to make those skilled in the art can understand technical scheme of the present invention better, below in conjunction with accompanying drawing, its embodiment is described in detail:
Refer to Fig. 1 to Fig. 3, the ventilating system of a kind of wind-driven generator of the present invention, comprise interior ventilation unit and separate ventilation device, wherein,
Generator comprises casing 10, rotor 11, stator 12, axle stretch end bearing 13 and non-shaft stretching end bearing 14 and forward and backward end cap 15,16, and forward and backward end cap 15,16 is enclosed within the outer face of axle stretch end bearing 13 and non-shaft stretching end bearing 14 correspondingly; The front and rear part of the lower surface of casing 10 offers a ventilating opening 17,18 respectively; The lateral surface of rear end cap 16 is provided with radiating ribs and fixed tower;
Interior ventilation unit comprises internal fan 2 and cooler 3, and internal fan 2 is arranged on the rotating shaft rear portion (non-shaft stretching end) of rotor 11 and is positioned at the inner side of rear end cap 16; Cooler 3 is arranged on the bottom of casing 10;
Separate ventilation device is arranged on outside the rear end cap 16 of generator, and this separate ventilation device comprises spiral case 4, external fan 5, outer cover 6, air ducting, fan shroud 8 and jockey, wherein,
Spiral case 4 has front exhaust outlet 40 and a lower port, the lateral surface of this spiral case 4 is offered a perforation, and a ventilating opening is offered in the bottom of this spiral case 4;
External fan 5 to be placed in spiral case 4 and to be arranged in the rotating shaft of rotor 11;
The medial surface of outer cover 6 is connected on the lateral surface of spiral case 4 by the mounting panel 60 that its upper end connects, the lower end of this outer cover 6 is connected with the air outlet of cooler 3 by an air duct 61, the bottom of the medial surface of this outer cover 6 is connected with the ventilating opening of spiral case 4 by a flexible pipe 62, and flexible pipe 62 is fixed on the bottom of outer cover 6 by clip;
Air ducting comprises air-ducting ring 71, some screw rods 72 and keep out the wind end cap 73, one of air-ducting ring 71 is connected in the perforation of spiral case 4, other end is connected with the end cap 73 that keeps out the wind by some uniform screw rods 72, and this keeps out the wind, end cap 73 is fixed on the top of the medial surface of outer cover 6;
The periphery of air-ducting ring 71 is located between the top that fan shroud 8 is arranged on the lateral surface of spiral case 4 and the medial surface of outer cover 6;
Jockey comprises a pair channel-section steel 91 and a L shape bottom plate 92, be connected between the medial surface of spiral case 4 and the lateral surface of rear end cap 16 a pair channel-section steel 91 vertical direction, L shape bottom plate 92 is connected between the lower surface of spiral case 4 and the medial surface of a pair channel-section steel 91, the lower port of spiral case 4 to be closed.
Separate ventilation device in the ventilating system of wind-driven generator of the present invention adopts and is placed in spiral case 4 by external fan, can under the driving of external fan 5, the perforation from spiral case 4 lateral surface is entered cold air in spiral case 4 from face vent 40 discharged to the external world.The heat that air outlet from cooler 3 can be discharged by air ducting imports in spiral case 4 from the perforation of the outside of spiral case 4.Fan shroud 8 plays outer cover 6 and spiral case 4 to seal the effect be flexible coupling.A pair channel-section steel 91 in jockey and the radiating ribs on outer end cap can form the introduction passage of a cooling-air between outer end cap 16 and spiral case 4, for cooling non-shaft stretching end bearing 14, thus reduce the surface temperature rise of non-shaft stretching end bearing 14.
Interior ventilation unit in the ventilating system of wind-driven generator of the present invention forms interior wind path: under the driving of internal fan 2, the heat produced by rotor 11 and the stator 12 of motor internal enters cooler 3 through the after ventilation mouth 18 of casing 10, through the cooled cold wind of cooler 3 again before casing 10 ventilating opening 17 enter motor internal.
Separate ventilation device forms outer ventilation circuit: under the driving of external fan 5, by the heat of release in cooler 3 through the perforation suction spiral case of air duct 61, outer cover 6, air-ducting ring 71 and spiral case 4, then from the front exhaust outlet 40 of spiral case 4 discharged to the external world.
Separate ventilation device also forms the cooling air duct to non-shaft stretching end bearing 14: under the driving of external fan 5, cold air between the medial surface of spiral case 4 and the lateral surface of rear end cap 16 is by way of the passage formed by the neutral between a pair channel-section steel 91 and rear end cap 16, and spiral case 4 is sucked into after cooling non-shaft stretching end bearing 14, then a part of hot blast is got back in outer cover 6 by flexible pipe 62 under the pressure effect of external fan 5, again through the perforation suction spiral case 4 of air-ducting ring 71 and spiral case 4, get back on external fan 5, again from the front exhaust outlet 40 of spiral case 4 discharged to the external world, so move in circles.
The interior wind path that the ventilating system of wind-driven generator of the present invention is formed, outer ventilation circuit and cooling air duct, can cool the heat produced by the iron core of the inside of wind-driven generator and coil, can reduce again the surface temperature rise of non-shaft stretching end bearing 14.The ventilating system of wind-driven generator of the present invention solves wind-driven generator single-machine capacity greatly, and the volume of wind-driven generator is little, and the heat distributed is large, the problem that non-shaft stretching end bearing temperature rise is high.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (6)
1. the ventilating system of a wind-driven generator, comprise interior ventilation unit and separate ventilation device, described interior ventilation unit comprises the rotating shaft rear portion that is arranged on described generator and is positioned at the internal fan of casing internal and is arranged on the cooler of described casing bottom, it is characterized in that, described separate ventilation device is arranged on outside the rear end cap of described generator, this separate ventilation device comprises spiral case, external fan, outer cover, air ducting and jockey, wherein
Described spiral case has front exhaust outlet and lower port, the lateral surface of this spiral case is offered a perforation, and a ventilating opening is offered in the bottom of this spiral case;
Described external fan to be placed in described spiral case and to be arranged in the rotating shaft of described generator;
The medial surface of described outer cover is connected on the lateral surface of described spiral case, and the lower end of this outer cover is connected with the air outlet of described cooler by an air duct, and the bottom of the medial surface of this outer cover is connected with the ventilating opening of described spiral case by a flexible pipe;
Described air ducting comprises one and is connected in the perforation of described spiral case, and other end is fixed on the air-ducting ring on the top of the medial surface of described outer cover;
Described jockey comprises a pair perpendicular channel-section steel and be straightly connected between the medial surface of described spiral case and the lateral surface of described rear end cap and is connected to bottom plate between the lower surface of described spiral case and the medial surface of described a pair channel-section steel.
2. the ventilating system of wind-driven generator according to claim 1, is characterized in that, described separate ventilation device also comprises one and to be arranged between the lateral surface of described spiral case and the medial surface of described outer cover and to be located at the fan shroud of the periphery of described air-ducting ring.
3. the ventilating system of wind-driven generator according to claim 1, is characterized in that, described outer cover is connected on the lateral surface of described spiral case by the mounting panel that its upper end connects.
4. the ventilating system of wind-driven generator according to claim 1, it is characterized in that, described air ducting also comprises the end cap that keeps out the wind that some screw rods and be connected in air-ducting ring are connected to screw rod other end, and this end cap that keeps out the wind is fixed on the medial surface of described outer cover.
5. the ventilating system of wind-driven generator according to claim 1, is characterized in that, the lateral surface of described rear end cap is equipped with radiating ribs.
6. the ventilating system of wind-driven generator according to claim 1, is characterized in that, the front and rear part of the lower surface of described casing offers a ventilating opening respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310106381.7A CN103151877B (en) | 2013-03-29 | 2013-03-29 | Ventilation system of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310106381.7A CN103151877B (en) | 2013-03-29 | 2013-03-29 | Ventilation system of wind driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103151877A CN103151877A (en) | 2013-06-12 |
| CN103151877B true CN103151877B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310106381.7A Active CN103151877B (en) | 2013-03-29 | 2013-03-29 | Ventilation system of wind driven generator |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202309385U (en) * | 2011-11-01 | 2012-07-04 | 西安盾安电气有限公司 | Windmill generator cooler |
| CN202374120U (en) * | 2011-12-30 | 2012-08-08 | 卧龙电气集团股份有限公司 | Cooler for enclosed motor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04172945A (en) * | 1990-11-02 | 1992-06-19 | Fuji Electric Co Ltd | Outer fan type electric rotating machine |
| JPH05244750A (en) * | 1992-02-28 | 1993-09-21 | Mitsubishi Electric Corp | Rotating electric machine |
| US5844333A (en) * | 1996-11-12 | 1998-12-01 | Unifin International, Inc. | Device and method for cooling a motor |
| CN2927475Y (en) * | 2006-05-22 | 2007-07-25 | 江西特种电机股份有限公司 | High-voltage motor with wind-cooling structure |
| CN102769362A (en) * | 2012-07-26 | 2012-11-07 | 浙江创新电机有限公司 | Large-power three-phase asynchronous motor with built-in cooler |
-
2013
- 2013-03-29 CN CN201310106381.7A patent/CN103151877B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202309385U (en) * | 2011-11-01 | 2012-07-04 | 西安盾安电气有限公司 | Windmill generator cooler |
| CN202374120U (en) * | 2011-12-30 | 2012-08-08 | 卧龙电气集团股份有限公司 | Cooler for enclosed motor |
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| CN103151877A (en) | 2013-06-12 |
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