CN205277723U - Wind generating set and base bearing cooling system thereof - Google Patents
Wind generating set and base bearing cooling system thereof Download PDFInfo
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- CN205277723U CN205277723U CN201521135061.5U CN201521135061U CN205277723U CN 205277723 U CN205277723 U CN 205277723U CN 201521135061 U CN201521135061 U CN 201521135061U CN 205277723 U CN205277723 U CN 205277723U
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- 238000001816 cooling Methods 0.000 title claims abstract description 113
- 239000004065 semiconductor Substances 0.000 claims abstract description 93
- 238000001514 detection method Methods 0.000 claims description 19
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model provides a wind generating set and base bearing cooling system thereof. This wind generating set base bearing cooling system include: semiconductor cooling portion, it has endothermal cold junction and an exothermal hot junction, the cold junction with be connected by the refrigerated base bearing, supply control portion, it is connected with semiconductor cooling portion, to semiconductor cooling portion's power supply and control semiconductor cooling portion. Adopt this wind generating set base bearing cooling system to cool off the base bearing, the reliability is high, the controllability is good, and the noiselessness friction.
Description
Technical field
The utility model relates to cooling equipment of wind generator set field, particularly relates to a kind of wind power generating set and main bearing babbitting jig cooling system thereof.
Background technology
The maximization of wind power generating set progressively becomes trend, must bring the maximization of its main bearing babbitting jig in the maximization of wind power generating set so that the load of main bearing babbitting jig sharply increases, and brings many challenges to the safe and reliable operation of main bearing babbitting jig. Wherein the operating temperature of main bearing babbitting jig is the important factor of its reliability service. In order to guarantee the reasonable life-span that wind driven generation set main shaft holds, except except design, manufacturing processing and assembling fully consider related request, should the on-the-spot operating temperature of this main bearing babbitting jig be controlled at zone of reasonableness, just can avoid the premature failure of main bearing babbitting jig and bring huge financial loss to genco.
Paper " motor bearings wind-cooling heat dissipating " proposes technical scheme that the suitable lengthening broadening of blade of generator aft-fan takes away the heat of bearing. But general wind power generating set adopts dual bearing structure, and the heat of rear bearing may be taken away by the fan being arranged at its rear end, but the radiating effect of front bearing is limited.
Another mode adopts the mode of transpiration cooling to cool bearing, also namely by arranging liquid cooling pipeline on bearing, utilizes the evaporation of heat-eliminating medium to cool bearing. Although this kind of mode can reduce the temperature of bearing, but complex structure, and also there is the risk of leakage in heat-eliminating medium.
Another mode adopts the mode of finned to be dispelled the heat by bearing. But this kind of bearing type of cooling waste material, the utilization ratio of heat sink material is low, and when bearing heating amount is bigger, radiating effect is poor.
Also having a kind of mode to be the inner ring structure using novel bearing, distributed by heat by the mode of natural convection by heat by the hole on inner ring, this kind of mode does not carry out forced heat radiation cooling, and radiating effect is limited.
In sum, existing bearing type of cooling cooling performance is poor, to the poor effect ensureing bearing reliability.
Practical novel content
Embodiment of the present utility model provides a kind of wind power generating set and main bearing babbitting jig cooling system thereof, with the problem that to solve the main bearing babbitting jig cooling performance of wind power generating set not good.
For achieving the above object, embodiment of the present utility model provides a kind of wind driven generation set main shaft to hold cooling system, comprising: semi-conductor cooling end, and it has the cold junction of heat absorption and the hot junction of heat release, and cold junction is connected with cooled main bearing babbitting jig; Power supply control portion, it is connected with semi-conductor cooling end, powers to semi-conductor cooling end and controls semi-conductor cooling end.
Further, the controller that power supply control portion comprises power supply and is connected with power supply, semi-conductor cooling end is connected with controller.
Further, wind driven generation set main shaft holds cooling system and also comprises conducting slip ring, and conducting slip ring has turning end and inboardend, and turning end is connected with semi-conductor cooling end, and inboardend is connected with power supply.
Further, wind driven generation set main shaft holds the detection portion that cooling system also comprises detection main bearing babbitting jig temperature, and detection portion is connected with controller and the temperature information of detection is passed to controller.
Further, detection portion comprises temperature sensor, the outer ring temperature of temperature sensor detection main bearing babbitting jig.
Further, semi-conductor cooling end comprises multiple semiconductor heat galvanic couple, the series connection of multiple semiconductor heat galvanic couple or formation Multi-stage heat pile in parallel.
Further, Multi-stage heat pile is three grades of thermopiles, first step thermopile comprises a semiconductor heat galvanic couple, and second stage thermopile comprises two semiconductor heat galvanic couples, and in parallel between the semiconductor heat galvanic couple of first step thermopile and the semiconductor heat galvanic couple of second stage thermopile; Third stage thermopile comprises three semiconductor heat galvanic couples, and connect between the semiconductor heat galvanic couple of third stage thermopile and the semiconductor heat galvanic couple of second stage thermopile, it is provided with electric-insulation heat-conduction layer between the semiconductor heat galvanic couple of third stage thermopile and the semiconductor heat galvanic couple of second stage thermopile.
According to another aspect of the present utility model, a kind of wind power generating set is provided, the moving axis determined axle, be arranged on the main bearing babbitting jig determining in axle, be located in main bearing babbitting jig comprising cabin, being connected on cabin, this wind power generating set is also provided with above-mentioned main bearing babbitting jig cooling system.
Further, the cold junction of the semi-conductor cooling end of main bearing babbitting jig cooling system is fixedly installed on the inner-wall surface of moving axis.
The wind driven generation set main shaft of embodiment of the present utility model holds cooling system and utilizes semi-conductor cooling end to be cooled by the main bearing babbitting jig of wind power generating set, power supply control portion is utilized to be controlled by semi-conductor cooling end, the main bearing babbitting jig of wind power generating set is cooled with can realizing automated intelligent, and this kind of type of cooling reliability height, good cooling results, without noise, friction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wind power generating set of embodiment of the present utility model;
Fig. 2 is the principle schematic of the multistage electric heating heap of embodiment of the present utility model;
Fig. 3 is the schema of the cooling control method of embodiment of the present utility model.
Description of reference numerals:
1, semi-conductor cooling end; 11, cold junction; 12, hot junction; 13, electric-insulation heat-conduction layer; 2, main bearing babbitting jig; 3, power supply control portion; 31, power supply; 32, controller; 4, conducting slip ring; 5, temperature sensor; 6, cabin; 8, moving axis.
Embodiment
Below in conjunction with accompanying drawing, the wind power generating set of the utility model embodiment and main bearing babbitting jig cooling system thereof are described in detail.
As shown in Figure 1, the moving axis 8 etc. determined axle, be arranged on the main bearing babbitting jig 2 determining in axle and be located in main bearing babbitting jig 2 that wind power generating set comprises cabin 6, is connected on cabin 6. Wherein, the outer ring of main bearing babbitting jig 2 is arranged on determines in axis hole, keeps static together with determining axle, and the inner ring of main bearing babbitting jig 2 is arranged on moving axis 8, and servo axis 8 rotates together. Moving axis 8 is connected with impeller system with rotor field spider, along with impeller system rotates. In the working process of wind power generating set, main bearing babbitting jig 2 can produce fever phenomenon so that the operating temperature of main bearing babbitting jig exceedes its operating temperature range being applicable to, and causes main bearing babbitting jig 2 service life reduction, reliability to reduce. In order to guarantee that main bearing babbitting jig 2 can work in suitable temperature range, it is necessary to main bearing babbitting jig 2 is cooled. In the present embodiment, adopt wind driven generation set main shaft to hold cooling system to be cooled by main bearing babbitting jig 2.
According to embodiment of the present utility model, wind driven generation set main shaft holds cooling system and comprises semi-conductor cooling end 1 and power supply control portion 3. Wherein, semi-conductor cooling end 1 has the cold junction 11 of heat absorption and the hot junction 12 of heat release, cold junction 11 is connected with cooled main bearing babbitting jig 2, according to heat-conduction principle, the cold junction of semi-conductor cooling end 1 is utilized to absorb the heat of main bearing babbitting jig 2, make its decrease in temperature realize the effective cooling to main bearing babbitting jig 2, and then ensure that the working temperature of main bearing babbitting jig 2 is in a suitable scope, to guarantee its work-ing life. Power supply control portion 3 is connected with semi-conductor cooling end 1, powers to semi-conductor cooling end 1, so that its work, and control semi-conductor cooling end 1.
In the present embodiment, utilize semi-conductor cooling end 1 to be cooled by the main bearing babbitting jig of wind power generating set targetedly, it is ensured that main bearing babbitting jig 2 can be effectively cooled, and then guarantee the working temperature of main bearing babbitting jig 2.
Specifically, the cold junction 11 of semi-conductor cooling end 1 is fixedly installed on the inner-wall surface of moving axis 8. Due to the inner ring shrink-fit of moving axis 8 with main bearing babbitting jig 2, it is connected by rotator between the outer ring of main bearing babbitting jig 2 and inner ring, therefore by heat-conduction principle, the cold junction 11 of semi-conductor cooling end 1 can absorb the heat of the outer ring of main bearing babbitting jig 2, and is cooled by main bearing babbitting jig 2.
The cooling principle of semi-conductor cooling end 1 is: a P-type semiconductor element and a N-type semiconductor element are connected to form a thermopair. When it is energized, the sense of current of thermopair one end is from N pole to P pole (N-P), this end decrease in temperature, and absorbs heat, forms the cold junction 11 of semi-conductor cooling end 1. The sense of current of the other end of thermopair is from P pole to N pole (P-N), and this end temperature raises, and releases heat, forms the hot junction 12 of semi-conductor cooling end 1. Powered to semi-conductor cooling end 1 by power supply control portion 3, and control semi-conductor cooling end 1 and freeze when needed, to form cold zone at its cold junction 11, the heat of main bearing babbitting jig 2 is transmitted to the cold junction 11 of semi-conductor cooling end 1, and then make the decrease in temperature of main bearing babbitting jig 2, it is achieved to the effective cooling of main bearing babbitting jig 2.
As shown in Figure 2, semi-conductor cooling end 1 comprises multiple semiconductor heat galvanic couple, the series connection of multiple semiconductor heat galvanic couple or formation Multi-stage heat pile in parallel. Multi-stage heat pile has bigger refrigerating duty, it is possible to more effectively cool main bearing babbitting jig 2.
In the present embodiment, Multi-stage heat pile is three grades of thermopiles, its first step comprises a semiconductor heat galvanic couple, the second stage comprises two semiconductor heat galvanic couples, and it is in parallel between the semiconductor heat galvanic couple of the first step and the semiconductor heat galvanic couple of the second stage, between two-stage, operating voltage is identical, owing to inter-stage should conduct electricity again in heat conduction, so not needing inter-stage electrical isolation. The third stage comprises three semiconductor heat galvanic couples, and connects between the semiconductor heat galvanic couple of the third stage and the semiconductor heat galvanic couple of the second stage, and the working current between two-stage is identical. For ensure Multi-stage heat pile can normal operation, be provided with electric-insulation heat-conduction layer 13 between the semiconductor heat galvanic couple of the third stage and the semiconductor heat galvanic couple of the second stage, with electric current isolated when guaranteeing to carry out thermal conduction. The thermal conductivity of electric-insulation heat-conduction layer 13 is big, it is possible to reduce the loss caused by inter-stage heat transfer temperature difference.
Preferably, in the present embodiment, Multi-stage heat pile is multiple, and is evenly arranged along the circumference of moving axis 8, to realize best cooling performance.
As shown in Figure 2, in three semiconductor heat galvanic couples of the third stage, the N being in a middle semiconductor heat galvanic couple extremely on connect positive pole, P extremely on connect negative pole.
In the present embodiment, the controller 32 that power supply control portion 3 comprises power supply 31 and is connected with power supply 31, semi-conductor cooling end 1 is connected with controller 32. Power supply 31 is for powering to semi-conductor cooling end 1. It can be store battery, solar panel or other parts that can provide electric energy. Owing to this cooling system is applied in wind power generating set, therefore, power supply 31 can be the power supply system of wind power generating set.
Controller 32 is for controlling semi-conductor cooling end 1. Controller 32 can be arrange separately micro-chip, minicomputer (PC) etc. In the present embodiment, controller 32 is the principal controller of wind power generating set, and it is PLC (programmable logic controller). This controller 32 is for controlling the size of current whether powered to semi-conductor cooling end 1 and power. In the present embodiment, controller 32 is the PLC of the master control system of wind power generating set, it is placed in the master control cabinet in cabin 6 to be the brain of whole system, the Temperature numerical from temperature sensor 5 is judged according to the program being solidificated in advance in PLC, and determine whether to send instructions to power supply 31 or send different instructions to power or power-off to Multi-stage heat pile according to threshold value and time, thus automatically start or stop Multi-stage heat pile.
Owing to this semi-conductor cooling end 1 is arranged on the moving axis 8 of wind power generating set, and power supply 31 is arranged in the cabin 6 of wind power generating set, in order to realize the transmission ofenergy of rotating element and fixed part, wind driven generation set main shaft holds cooling system and also comprises conducting slip ring 4, and conducting slip ring 4 is arranged on the rotor brake crossbeam of wind power generating set. Conducting slip ring 4 has turning end and inboardend, and turning end is connected with semi-conductor cooling end 1, and inboardend is connected with power supply 31, so that by the electrical energy transfer of power supply 31 on semi-conductor cooling end 1.
Preferably, in order to improve precise control degree, wind driven generation set main shaft holds the detection portion that cooling system also comprises detection main bearing babbitting jig 2 temperature, and detection portion is connected with controller 32 and the temperature information of detection is passed to controller 32. Such controller 32 can control semi-conductor cooling end 1 in real time according to the temperature value of the main bearing babbitting jig 2 of detection portion detection and work, to regulate the temperature of main bearing babbitting jig 2 in real time.
Detection portion can be that infrared temperature detector etc. can the device of detected temperatures. In the present embodiment, detection portion comprises temperature sensor 5, and temperature sensor 5 is arranged in the hole determining axle, for the temperature of real time on-line monitoring main bearing babbitting jig 2 outer ring, and the data monitored is sent to controller 32.
The process of cooling of this cooling system is as follows:
Moving axis 8 internal surface matched with main bearing babbitting jig 2 that Multi-stage heat pile is arranged on wind power generating set, utilizes Multi-stage heat pile to freeze. Utilize the outer ring temperature of the temperature sensor 5 on-line real-time measuremen main bearing babbitting jig 2 being arranged on main bearing babbitting jig 2 outer ring, and detected temperature conditions is sent to the PLC of master control system in wind generating set engine room master control cabinet, it is achieved on-line temperature monitoring. Once the temperature data that PLC receives exceedes the threshold value set in advance, PLC sends instruction by power supply 31 power supply system of wind power generating set (its be), power supply 31 will power to as requested Multi-stage heat pile so that it is starts refrigeration as requested. The heat of the internal surface of the moving axis 8 in main bearing babbitting jig 2 is led its hot junction 12 by the cold junction 11 of Multi-stage heat pile continuously, thus cools moving axis 8, and then the inner ring of indirect cooling main bearing babbitting jig 2, roller and outer ring. When temperature sensor 5 detects that the temperature of outer ring drops to below rational temperature, PLC receive the Temperature numerical sent from temperature sensor 5 and after continuing for some time, PLC sends the instruction of power-off to power supply 31, subsequently Multi-stage heat pile stopping work. Remain that the temperature of main bearing babbitting jig 2 is below rational operating temperature like this, it is ensured that main bearing babbitting jig does not reduce its work-ing life or too early damage and lost efficacy because temperature is too high.
According to another aspect of the present utility model, it is provided that a kind of cooling control method, for controlling, above-mentioned wind driven generation set main shaft holds cooling system to this cooling control method, and it comprises the steps:
Gather the temperature information of main bearing babbitting jig 2 outer ring;
C.T. information and the first preset temperature value T1, if temperature information is greater than the first preset temperature value T1 and the time length is greater than the first preset time t 1, then illustrate that main bearing babbitting jig 2 needs cooling, then power to semi-conductor cooling end 1, the cold junction 11 of semi-conductor cooling end 1 is absorbed heat, heat on main bearing babbitting jig 2 is delivered on cold junction 11 through moving axis 8, then is dispersed in the space in moving axis 8 by the hot junction 12 of semi-conductor cooling end 1, fall apart by heat by the heat-removal system of wind power generating set.
Preferably, in order to reduce energy dissipation, when powering to semi-conductor cooling end 1, make semi-conductor cooling end 1 continuous service the 2nd preset time t 2, also comprise the steps: afterwards
Gather the temperature information of main bearing babbitting jig 2 outer ring;
C.T. information and the 2nd preset temperature value T2, if temperature information is less than the 2nd preset temperature value T2 and the time length is greater than the 3rd preset time t 3, under then illustrating that main bearing babbitting jig 2 is in suitable working temperature, it is not necessary to freeze again, then terminate powering to semi-conductor cooling end 1.
As shown in Figure 3, specifically, this wind driven generation set main shaft holds the working process of cooling system and is:
When wind power generating set is when wind energy turbine set trouble free long-time running, the temperature sensor 5 on the outer ring of main bearing babbitting jig 2 is by the temperature data of collection outer ring real-time online, and data are sent to the PLC of cabin master control cabinet. This detected temperatures is compared by controller 32 with the first preset temperature value T1.
If detected temperatures is greater than the first preset temperature value T1, then start timing. If detected temperatures more than the first preset time t 1, then keeps present situation more than time of the first preset temperature value T1, controller 32 does not send instruction. If detected temperatures more than the first preset time t 1, then illustrates that main bearing babbitting jig 2 needs cooling more than time of the first preset temperature value T1, power supply 31 signal given by controller 32 so that it is power to Multi-stage heat pile. Multi-stage heat pile is started working, and absorbs the heat of moving axis 8, is indirectly taken away the heat of the inner ring of main bearing babbitting jig 2, roller and outer ring by thermal conduction, convection current and radiation, thus reaches the object of the temperature of the inner ring, roller and the outer ring that reduce main bearing babbitting jig 2.
After Multi-stage heat pile started for the 2nd scheduled time t2, if the temperature data of the outer ring of the main bearing babbitting jig 2 that controller 32 receives is lower than the 2nd preset temperature value T2, then start timing, if detected temperatures does not reach the 3rd preset time t 3 lower than the time length of the 2nd preset temperature value T2, then illustrate that main bearing babbitting jig 2 still needs cooling, controller 32 continues to send instruction to power supply 31, it is desired to its continuation is powered to Multi-stage heat pile. If detected temperatures reaches the 3rd preset time t 3 lower than the time length of the 2nd preset temperature value T2, then controller 32 sends instruction to power supply 31, and the electric current ordering it to disconnect Multi-stage heat pile, makes Multi-stage heat pile stopping work. Wherein, the first preset temperature value T1 is greater than the 2nd preset temperature value T2.
By Multi-stage heat pile Refrigeration Technique and on-line temperature monitoring technology, reach the temperature of the outer ring of the main bearing babbitting jig 2 of on-line monitoring wind power generating set, and the temperature conditions of the outer ring according to main bearing babbitting jig 2, automatically Multi-stage heat pile is started or stoped, moving axis 8 internal surface matched directly to cool the inner ring of the main bearing babbitting jig 2 with wind power generating set, and then the object of the inner ring of indirect cooling main bearing babbitting jig 2, roller and outer ring, realize the effect of real-time control main bearing babbitting jig 2 temperature, solve the problem of the main bearing babbitting jig difficult control of temperature of wind power generating set.
Wind power generating set of the present utility model and main bearing babbitting jig cooling system thereof have following effect:
The thermopair series-parallel connection mixing that Multi-stage heat pile freezes by multiple semi-conductor forms. Maximum refrigerating duty and maximum temperature difference can be obtained, its cold junction is arranged on the internal surface of moving axis, multiple Multi-stage heat piles are evenly distributed in the internal surface of moving axis, and during work, the heat of its cold junction absorption main bearing babbitting jig makes main bearing babbitting jig lower the temperature, and the heat of absorption will be discharged by its hot junction.
The semiconductor refrigerating technology that Multi-stage heat pile adopts cools the main bearing babbitting jig of wind power generating set indirectly, the problem solving main bearing babbitting jig operating temperature height and cannot effectively lower the temperature, reach the effect effectively reducing main bearing babbitting jig temperature, solve the problem that the general semiconductor refrigerator temperature difference is little and cold is little simultaneously, the Multi-stage heat pile adopted has the bigger temperature difference and cold, it is possible to obtain lower cold junction temperature;
The cooling air mode noise also solving main bearing babbitting jig is big, have vibration, volume big, and liquid cooling mode needs cooling fluid, piping system complexity, has the problem of risk of leakage, Heavy Weight, reach noiseless, friction, do not need that cooling fluid, volume are little, weight is light, and reliable operation, non-maintaining, the simple effect of installation and operation;
Have employed PLC to control, solve and can not control the synchronous and integrated problem of bearing temperature with automatic by on-line real time monitoring bearing temperature, reach the effect of the control main bearing babbitting jig temperature of full-automatic intelligent.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; any it is familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model. Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (9)
1. a wind driven generation set main shaft holds cooling system, it is characterised in that, comprising:
Semi-conductor cooling end (1), it has the cold junction (11) of heat absorption and the hot junction (12) of heat release, and described cold junction (11) is connected with cooled main bearing babbitting jig (2);
Power supply control portion (3), it is connected with described semi-conductor cooling end (1), powers to described semi-conductor cooling end (1) and controls described semi-conductor cooling end (1).
2. wind driven generation set main shaft according to claim 1 holds cooling system, it is characterized in that, the controller (32) that described power supply control portion (3) comprises power supply (31) and is connected with described power supply (31), described semi-conductor cooling end (1) is connected with described controller (32).
3. wind driven generation set main shaft according to claim 2 holds cooling system, it is characterized in that, described wind driven generation set main shaft holds cooling system and also comprises conducting slip ring (4), described conducting slip ring (4) has turning end and inboardend, described turning end is connected with described semi-conductor cooling end (1), and described inboardend is connected with described power supply (31).
4. wind driven generation set main shaft according to claim 2 holds cooling system, it is characterized in that, described wind driven generation set main shaft holds the detection portion that cooling system also comprises detection described main bearing babbitting jig (2) temperature, and described detection portion is connected with described controller (32) and the temperature information of detection passes to described controller (32).
5. wind driven generation set main shaft according to claim 4 holds cooling system, it is characterized in that, described detection portion comprises temperature sensor (5), and described temperature sensor (5) detects the outer ring temperature of described main bearing babbitting jig (2).
6. wind driven generation set main shaft according to claim 1 holds cooling system, it is characterised in that, described semi-conductor cooling end (1) comprises multiple semiconductor heat galvanic couple, the series connection of described multiple semiconductor heat galvanic couple or formation Multi-stage heat pile in parallel.
7. wind driven generation set main shaft according to claim 6 holds cooling system, it is characterized in that, described Multi-stage heat pile is three grades of thermopiles, first step thermopile comprises a semiconductor heat galvanic couple, second stage thermopile comprises two semiconductor heat galvanic couples, and in parallel between the semiconductor heat galvanic couple of described first step thermopile and the semiconductor heat galvanic couple of described second stage thermopile;
Third stage thermopile comprises three semiconductor heat galvanic couples, and connect between the semiconductor heat galvanic couple of described third stage thermopile and the semiconductor heat galvanic couple of described second stage thermopile, it is provided with electric-insulation heat-conduction layer (13) between the semiconductor heat galvanic couple of described third stage thermopile and the semiconductor heat galvanic couple of described second stage thermopile.
8. a wind power generating set, comprise cabin (6), be connected on described cabin (6) determine axle, be arranged on described determine in axle main bearing babbitting jig (2), the moving axis (8) that is located in described main bearing babbitting jig (2), it is characterized in that, also it is provided with the main bearing babbitting jig cooling system according to any one of claim 1 to 7.
9. wind power generating set according to claim 8, it is characterised in that, the cold junction (11) of the semi-conductor cooling end (1) of described main bearing babbitting jig cooling system is fixedly installed on the inner-wall surface of described moving axis (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521135061.5U CN205277723U (en) | 2015-12-31 | 2015-12-31 | Wind generating set and base bearing cooling system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521135061.5U CN205277723U (en) | 2015-12-31 | 2015-12-31 | Wind generating set and base bearing cooling system thereof |
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| CN205277723U true CN205277723U (en) | 2016-06-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484948A (en) * | 2015-12-31 | 2016-04-13 | 北京金风科创风电设备有限公司 | Wind generating set and main bearing cooling system and cooling control method thereof |
| CN108708834A (en) * | 2018-05-22 | 2018-10-26 | 芜湖裕优机械科技有限公司 | A kind of radiator and its heat dissipating method of wind power generating set |
| CN109139396A (en) * | 2018-08-07 | 2019-01-04 | 北京金风科创风电设备有限公司 | Cooling system and cooling method of wind generating set and wind driven generator |
| CN109958591A (en) * | 2019-04-25 | 2019-07-02 | 浙江大学 | The air-cooling apparatus of bearing of wind power generator and wind-driven generator including it |
| CN112066591A (en) * | 2020-08-31 | 2020-12-11 | 中国科学院理化技术研究所 | Thermoelectric and electromagnetic composite refrigeration system |
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2015
- 2015-12-31 CN CN201521135061.5U patent/CN205277723U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484948A (en) * | 2015-12-31 | 2016-04-13 | 北京金风科创风电设备有限公司 | Wind generating set and main bearing cooling system and cooling control method thereof |
| CN105484948B (en) * | 2015-12-31 | 2020-02-21 | 北京金风科创风电设备有限公司 | Cooling control method for main bearing of wind generating set |
| CN108708834A (en) * | 2018-05-22 | 2018-10-26 | 芜湖裕优机械科技有限公司 | A kind of radiator and its heat dissipating method of wind power generating set |
| CN109139396A (en) * | 2018-08-07 | 2019-01-04 | 北京金风科创风电设备有限公司 | Cooling system and cooling method of wind generating set and wind driven generator |
| CN109958591A (en) * | 2019-04-25 | 2019-07-02 | 浙江大学 | The air-cooling apparatus of bearing of wind power generator and wind-driven generator including it |
| CN109958591B (en) * | 2019-04-25 | 2020-10-23 | 浙江大学 | Air cooling device of wind driven generator bearing and wind driven generator comprising same |
| CN112066591A (en) * | 2020-08-31 | 2020-12-11 | 中国科学院理化技术研究所 | Thermoelectric and electromagnetic composite refrigeration system |
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