CN102281742A - Closed cabinet body cooling system and wind generating set - Google Patents
Closed cabinet body cooling system and wind generating set Download PDFInfo
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- CN102281742A CN102281742A CN2011101924304A CN201110192430A CN102281742A CN 102281742 A CN102281742 A CN 102281742A CN 2011101924304 A CN2011101924304 A CN 2011101924304A CN 201110192430 A CN201110192430 A CN 201110192430A CN 102281742 A CN102281742 A CN 102281742A
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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
Abstract
The invention provides a closed cabinet body cooling system for cooling a heating device in at least one closed cabinet body. The closed cabinet body cooling system comprises a circulation passage, a cooling device, a heat exchanging device, a drive device and a heat exchange medium, wherein the heat exchanging device is arranged on the circulation passage; the cooling device is connected with the circulation passage or the heat exchanging device; the drive device drives the heat exchange medium to circularly flow in the circulation passage; and the heat exchange medium exchanges heat with the heating device through the heat exchanging device. The closed cabinet body cooling system provided by the invention can effectively cool the heating device in the closed cabinet body under high-temperature environment, ensure the heating device in the appropriate temperature range and avoid failure caused by over high temperature.
Description
Technical field
The present invention relates to wind generating technology, relate in particular to a kind of airtight cabinet cooling system and have the wind turbine generator of this airtight cabinet cooling system.
Background technology
Modern Large-scale Wind Turbines is mainly used in generates electricity by way of merging two or more grid systems, and a key equipment that generates electricity by way of merging two or more grid systems is exactly a current transformer, can make the frequency of wind-driven generator output voltage and phase place satisfy the requirement of generating electricity by way of merging two or more grid systems by current transformer.Yet, power device caloric value in the wind turbine generator current transformer is very big, and because the stream device is arranged in the interior unsteady flow cabinet of tower tube usually, substantially isolate with external environment, thereby can't efficiently radiates heat, this just makes that current transformer temperature when work is very high, in order to guarantee the current transformer operate as normal, just be necessary for the special cooling system of current transformer configuration, influence the normal operation of wind turbine generator to prevent too high the breaking down of current transformer Yin Wendu and generate electricity by way of merging two or more grid systems.
The cooling means of wind-driven generator current transformer mainly is air-cooled cooling and water-cooled cooling at present.Wherein, air-cooled cooling is by offering air inlet and air outlet in tower tube appropriate location, and utilize cooling tower tube external environment air to be delivered to current transformer inside with centrifugal fan, come current transformer internal power device and other heater members are cooled off, the cooling air that is heated by heater members then is discharged to tower tube outside by air outlet.The water-cooled cooling is then by utilizing recirculated cooling water to cool off for current transformer configuration cooling water pipe, and be arranged in the outer empty water-to-water heat exchanger of tower tube by after the surrounding air cooling by the cooling water process that current transformer heats, enter the water cooling tube in the unsteady flow cabinet once more under the effect of circulating water pump, so circulation is cooled off unsteady flow cabinet internal power device and other heater members.
Because above-mentioned two kinds of cooling meanss all depend on the temperature of external environment air, when being higher than 45 ℃, ambient temperature all is difficult to current transformer is realized fully cooling.This be because: the inlet temperature of air-cooled cooling is identical with ambient temperature, and effect air-cooled when ambient temperature is higher can reduce greatly, thereby does not reach the needed cooling effect of wind turbine generator full-load run; And the recirculated water of water-cooled cooling is by the outer border air cooling of empty water-to-water heat exchanger quilt, and when ambient temperature was higher, the temperature of recirculated cooling water also can raise, thereby had reduced cooling effect.
Therefore when wind turbine generator is applied to the high temperature area, because existing cooling system can't effectively reduce the temperature of current transformer, in order to guarantee the normal operation of current transformer and wind turbine generator, just must reduce the caloric value of current transformer by the power output that reduces wind-driven generator, and this will greatly reduce the generating efficiency of wind turbine generator, and the current transformer failure rate that can not get fully cooling is higher relatively, life-span also can shorten relatively, therefore, press for a kind of system that can in hot environment, effectively cool off current transformer.
Summary of the invention
The present invention is devoted to solve the problems referred to above that prior art exists, for this reason, the invention provides a kind of airtight cabinet cooling system, it can effectively cool off the heater members in the airtight cabinet in hot environment, guarantee that heater members is in suitable temperature range, avoid occurring the too high and situation that breaks down of Yin Wendu.
For solving the problems of the technologies described above, the present invention also provides a kind of wind turbine generator, it is used above-mentioned airtight cabinet cooling system provided by the invention and cools off unsteady flow cabinet interior current transformer and other heater members, the temperature of current transformer is in the OK range, avoid occurring the too high and situation that breaks down of Yin Wendu, thereby make current transformer and the wind turbine generator can be, and reduce the failure rate of current transformer and the useful life of improving current transformer in operate as normal under the hot environment.
For this reason, one aspect of the present invention provides airtight cabinet cooling system, and it comprises circulation canal, cooling device, heat-exchange device, drive unit and heat exchange medium; Described heat-exchange device is arranged on the described circulation canal, and described cooling device is connected with described circulation canal or heat-exchange device; Described drive unit drives heat exchange medium and circulates in described circulation canal, and described heat exchange medium carries out heat exchange by described heat-exchange device and described heater members.
Wherein, described heat exchange medium comprises water or air.
Wherein, described circulation canal comprises circulation air path or circulating water pipe.
Wherein, the wherein part of described circulation canal is near described heater members setting.
Wherein, described circulation air path comprises the outer air channel that is positioned at outside the described airtight cabinet, and described outer air channel is surrounded by described airtight cabinet cabinet wall and the division board that is arranged on described airtight cabinet outside.
Wherein, described circulation canal comprises the air channel that is positioned at described airtight cabinet, and corresponding to each described airtight cabinet air channel at least one is set.
Wherein, described interior air channel is surrounded by described airtight cabinet cabinet wall.
Wherein, described interior air channel is surrounded by described airtight cabinet cabinet wall and the division board that is positioned at described airtight cabinet.
Wherein, described circulating water pipe comprises feed pipe and outlet pipe, and described circulating water pipe is connected with described cooling device.
Wherein, described heat-exchange device comprises the air water cooling heat-exchanging component that is arranged on the described circulation canal or is configured in described heater members heat abstractor on every side.
Wherein, described drive unit comprises water pump, centrifugal blower or axial flow blower.
Wherein, described cooling device comprises the high temperature cold water machine, is used to provide recirculated cooling water.
Wherein, described high temperature cold water machine comprises cooling water circulating device and refrigerating plant.
Wherein, the quantity of described refrigerating plant is more than one or two.
Wherein, the cold-producing medium of described refrigerating plant employing is R134A.
Wherein, described airtight cabinet cooling system also comprises control device, and described control device is used for controlling the startup of described drive unit and cooling device and stopping according to the temperature of described airtight cabinet internal heat generation device.
The present invention also provides a kind of wind turbine generator, it comprise be used for wind energy transformation be electric energy Blast Furnace Top Gas Recovery Turbine Unit (TRT), at least one is used to settle the unsteady flow cabinet of current transformer, and above-mentioned airtight cabinet cooling system, be used to cool off current transformer and other heater members in the described unsteady flow cabinet.
The present invention has following beneficial effect:
Airtight cabinet cooling system provided by the invention, driving heat exchange medium by drive unit circulates in circulation canal, thereby reduce the temperature of heater members by the heat exchange of heat-exchange device and heater members, and utilize cooling device to cool off the heat exchange medium of process heat exchange, therefore, the cooling effect of airtight cabinet cooling system provided by the invention does not rely on the temperature of external environment air, in hot environment, also can effectively reduce the temperature of heater members, it is in the suitable temperature range, avoids occurring the too high and situation that breaks down of Yin Wendu.
Wind turbine generator provided by the invention, owing to used above-mentioned airtight cabinet cooling system provided by the invention, thereby can under hot environment, effectively cool off current transformer and other heater members in the unsteady flow cabinet, the temperature of current transformer is in the OK range, avoid occurring the too high and situation that breaks down of Yin Wendu, thereby make current transformer and wind turbine generator operate as normal under hot environment, and reduce the failure rate of current transformer and the useful life of improving current transformer.In addition, because the current transformer temperature is in the OK range, thereby wind turbine generator just need not to reduce power output, correspondingly improved the energy output and the wind energy utilization of wind turbine generator.
Description of drawings
The structural representation of the airtight cabinet cooling system that Fig. 1 provides for first embodiment of the invention;
The structural representation of the air water cooling heat-exchanging component in the airtight cabinet cooling system that Fig. 2 provides for first embodiment of the invention;
The structural representation of high temperature cold water machine in the airtight cabinet cooling system that Fig. 3 provides for first embodiment of the invention;
Fig. 4 is the structural representation of the refrigerating plant of high temperature cold water machine shown in Figure 3;
The structural representation of the airtight cabinet cooling system that Fig. 5 provides for second embodiment of the invention;
The structural representation of the airtight cabinet cooling system that Fig. 6 provides for third embodiment of the invention.
Embodiment
For making those skilled in the art person understand technical scheme of the present invention better, airtight cabinet cooling system provided by the invention and wind turbine generator are elaborated below in conjunction with accompanying drawing.
See also Fig. 1-4, the airtight cabinet cooling system that first embodiment of the invention provides, be used to cool off power device 3 and other heater members in the unsteady flow cabinet 2, it comprises air water cooling heat exchanger assembly 4, high temperature cold water machine 5, circulating water pipe, circulation air path, wherein, high temperature cold water machine 5 provides cooling water to carry out heat exchange with the air of circulation air path as coolant in air water cooling heat-exchanging component 4 to air water cooling heat-exchanging component 4, thereby reduce the temperature of circulating air, the circulating air that the is cooled power device 3 of under the driving of drive unit, flowing through, and with power device 3 heat exchanges take place, thereby reduce the temperature of power device 3, and under the driving of drive unit, be cooled through air water cooling heat-exchanging component 4 once more after circulating air and power device 3 heat exchanges, so circulation, to guarantee that power device 3 is in the suitable temperature scope, avoid it the too high and situation that breaks down of Yin Wendu to occur, thereby but make current transformer and wind turbine generator operate as normal under hot environment.In actual applications, in order to improve the heat exchange heat efficiency of power device 3 and air, equipped with radiator 6 around power device 3 is used to increase the contact area of power device 3 and circulating air, thereby improves the radiating rate of power device 3.
As shown in Figure 1, circulation air path comprises two air channels that are positioned at unsteady flow cabinet 2: first air channel that is surrounded by unsteady flow cabinet 2 cabinet walls and division board 7 and second air channel that is surrounded by unsteady flow cabinet cabinet wall, division board 7 and division board 8, wherein, the air channel is provided with near unsteady flow cabinet sidewall in first, and the second interior air channel is provided with near power device 3.The air that is arranged in circulation air path can circulate at circulation air path in direction shown in the straight arrow of the driving lower edge of drive unit Fig. 1, and carries out heat exchange as heat exchange medium by radiator 6 and power device 3, reduces the temperature of power device 3.
See also Fig. 1 and Fig. 2, air water cooling heat-exchanging component 4 comprises centrifugal blower 40, heat exchanger 41, return air inlet 43 and housing 44.Wherein, centrifugal blower 40 and heat exchanger 41 are arranged in the housing 44, two return air inlets 43 are arranged on housing 44 belows and also are communicated with air channel in the above-mentioned first interior air channel and second respectively, to constitute circulation air path, be provided with because the cooling water pipe link that cooling water pipe is communicated with heat exchanger 41 in housing 44 sides, heat exchanger 41 is connected with 10 with circulating water pipe 9 by described cooling water pipe link, centrifugal blower 40 is as drive unit, the air circulation that drives in the described circulation air path flows, and flows through the circulating air of heat exchanger 41 by means of the water quench from high temperature cold water machine 5.
See also Fig. 3 and Fig. 4, the high temperature cold water machine 5 that is arranged on tower tube 1 periphery comprises cooling water circulating device and refrigerating plant, it can provide temperature at 5～20 ℃ cooling water, thereby can in hot environment, effectively reduce the temperature of circulating air, and then the temperature of reduction unsteady flow cabinet internal heat generation device, guarantee its operate as normal.
Wherein, cooling water circulating device comprises plate-type evaporator 50, water tank 52, water pump 53 and the ball valve 54 and 54 ' that is connected by pipeline.Wherein, plate-type evaporator 50 and refrigerating plant 51 are connected by pipeline with 51 ', and refrigerating plant 51 and 51 ' provides refrigerant vapour to plate-type evaporator 50, is used for carrying out heat exchange with the recirculated water that flows through plate-type evaporator 50, to reduce the temperature of recirculated water.Water tank 52 is used to store the recirculated water through plate-type evaporator 50 coolings, water pump 53 drives the recirculated water that is stored in the water tank 52 as drive unit and flows to heat exchanger 41 by feed pipe 9, thereby carry out heat exchange with the air in the circulation air path, to reduce the temperature of circulating air, cooling water through heat exchange flows back in the cooling water circulating device by return pipe 10 under action of gravity, and cool off once more and be stored in the water tank through plate-type evaporator 50, coming and so forth provides coolant for heat exchanger 41.
Refrigerating plant 51 and 51 ' adopts same structure, be the steam compression type refrigeration mode, it comprises the screw compressor 500 that is connected by pipeline, air-cooled condenser 501, heating power expansion valve 502 and plate-type evaporator 50, the concrete course of work of this refrigerating plant is: refrigerant vapour in plate-type evaporator 50 with the recirculated cooling water heat exchange after, sucked by compressor 500, discharge high-temperature high-pressure refrigerant gas after compression, high-temperature high-pressure refrigerant gas enters condenser 501 subsequently, in condenser 501, discharge heat and be condensed into refrigerant liquid, then refrigerant liquid becomes the low-temperature low-pressure refrigerant steam after heating power expansion valve 502 throttlings, the low-temperature low-pressure refrigerant steam is converted into gas after entering the heat that plate-type evaporator 50 absorbs recirculated cooling waters fully, refrigerant gas is sucked by compressor again, thereby realizes the refrigerating system circulation.In addition, this refrigerating plant is furnished with the exhaust high temperature protection switch on the gas exhaust piping of compressor 500, and when the exhaust overtemperature, compressor 500 is shut down.The fan of condenser 501 is furnished with speed-regulating switch, realizes the rotation speed of the fan adjusting by the condensing pressure of feedback, thereby control condensation air quantity is stablized condensing pressure.
The high temperature cold water machine 5 that present embodiment provides, owing in cooling water circulating device, be provided with water tank, be used to store a certain amount of cooling water, thereby the temperature constant that can keep cooling water, and owing to have a certain amount of cooling water in the water tank, the current transformer heat dissipation capacity that causes when the wind-driven generator power fluctuation also can satisfy required cooling water inflow when increasing, thereby guarantees efficient cooling.
Further, the high temperature cold water machine 5 that present embodiment provides comprises two separate refrigerating plants 51 and 51 ', two refrigerating plants 51 and 51 ' are worked simultaneously when the current transformer heat load is big, satisfy the heat radiation requirement, and when hour refrigerating plant 51 and the 51 ' alternation of current transformer heat load, thereby improve the utilance of each refrigerating plant, and increase useful life.And because two refrigerating plants 51 and 51 ' are separate, even therefore have a system to break down, another system also can operate as normal, and certain refrigerating capacity is provided, thereby provides the more time for the maintenance of failure system.
It may be noted that to such an extent that be, in order under hot environment, to obtain good refrigeration, refrigerating plant in the present embodiment adopts R134A as cold-producing medium, and each part of refrigerating plant all requires to select or design according to the refrigeration under the hot environment, to guarantee the refrigeration under hot environment.
In actual applications, the quantity of high temperature cold water refrigerator is not limited to 2, can adjust accordingly according to the heat dissipation capacity of current transformer, for example is set to 1 or a plurality of, as long as can guarantee to provide enough cooling waters.
See also Fig. 5, the structural representation of the airtight cabinet cooling system that it provides for second embodiment of the invention.Shown in 5, the airtight cabinet cooling system that present embodiment provides comprises high temperature cold water machine 5, radiator 6 and circulating water pipe 9 and 10.Wherein, high temperature cold water machine 5 is identical with the high temperature cold water machine that adopts in the first embodiment of the invention, does not repeat them here.Radiator 6 is a water-filled radiator, is used to increase the contact area of power device and cooling water, thereby improves radiating efficiency.The course of work of present embodiment cooling system is: high temperature cold water machine 5 provides under the effect of the water pump of portion within it of cooling water and enters in the radiator 6 by feed pipe 9, and carry out heat exchange with power device 3, thereby reduce the temperature of current transformer, cooling water flows back to high temperature cold water machine by return pipe 10 through after the heat exchange under action of gravity, so current transformer is cooled off in circulation, guarantees its operate as normal.Certainly, in actual applications, the high temperature cold water machine also can be provided with a plurality of circulating water pipes, and to be used to cool off current transformer and other heater members in a plurality of unsteady flow cabinets, its structure is roughly the same with present embodiment, does not repeat them here.
See also Fig. 6, the structural representation of the airtight cabinet cooling system that it provides for third embodiment of the invention.Shown in 6, the airtight cabinet cooling system that present embodiment provides is used to cool off current transformer and other heater members in unsteady flow cabinet 2 and 2 ', and it comprises outer air channel 20, interior air channel 21, interior air channel 21 ', drive unit 100, water wind heat exchanger 4 ' and high temperature cold water machine (figure does not show).
Different with first embodiment of the invention is, circulation air path comprises two circulation wind paths in the present embodiment, that is, and and first circulation wind path that constitutes by outer air channel 20 and interior air channel 21 and the second circulation wind path that constitutes by outer air channel 20 and interior air channel 21 '.Wherein, outer air channel 20 is surrounded by the right side wall of unsteady flow cabinet 2, the left side wall and the division board of unsteady flow cabinet 2 ', interior air channel 21 is surrounded by the cabinet wall of unsteady flow cabinet 2, interior air channel 21 ' is surrounded by the cabinet wall of unsteady flow cabinet 2 ', and the above and below at unsteady flow cabinet 2 right side walls and unsteady flow cabinet 2 ' left side wall sets out air port and air inlet, thereby makes outer air channel 20 and be communicated with the above-mentioned first circulation wind path of formation and the second circulation wind path with interior air channel 21 and 21 '.Under the driving of drive unit 100, the air in the unsteady flow cabinet 2 and 2 ' circulates by direction shown in the dotted arrow among the figure.Drive unit 100 is an axial flow blower in the present embodiment, it is arranged between unsteady flow cabinet 2 right side walls and the unsteady flow cabinet 2 ' left side wall, can be when its work with in the air channel 20 outside the air suction in unsteady flow cabinet 2 and 2 ', air flows to last in the air channel 20 outside subsequently, and by air channel 21 and 21 ' in the air inlet flow direction of unsteady flow cabinet 2 right side walls and unsteady flow cabinet 2 ' left side wall top.Air channel 21 and 21 ' air in flowing to from outer air channel 20, the air outlet by unsteady flow cabinet 21 right side walls and unsteady flow cabinet 21 ' left side wall below are recycled blower fan 10 once more in the outer air channel 20 ' of suction, thereby realize circulating.
In the present embodiment, water wind heat exchanger 4 ' is connected with the high temperature cold water machine, the air that circulates carries out heat exchange by the cooling water that water wind heat exchanger and high temperature cold water machine provide, thereby reduction temperature, to be used to cool off current transformer and other heater members in unsteady flow cabinet 2 and 2 ', the structure and the previous embodiment of high temperature cold water machine are similar, do not repeat them here.
Need to prove, in actual applications, the circulation canal of heat exchange medium is not limited to the situation that the above embodiment of the present invention provides, it can carry out relative set as required, for example among first embodiment, the first interior air channel can be arranged on unsteady flow cabinet outside, promptly, circulation air path is designed to the combination in outer air channel and interior air channel, and wherein, outer air channel is surrounded by division board and unsteady flow cabinet cabinet wall, interior air channel can be provided with by the second interior air channel shown in Figure 1, also can be with unsteady flow cabinet internal cavities as interior air channel, thus all air circulation in the unsteady flow cabinet are flowed, and come to carry out heat exchange with air water cooling heat-exchanging component or power device as heat exchange medium.It in addition, in actual applications, also can adopt other cooling devices to substitute the high temperature cold water machine, as long as can provide temperature enough low coolant.
Also need to illustrate to such an extent that be, airtight cabinet cooling system provided by the invention also can comprise control unit, described control unit can comprise detection module and control module, but factors such as detection module testing environment temperature, heater members caloric value, control module can be according to being used alternatingly of a plurality of refrigerating plants in the temperature of the detection Data Control coolant of detection module, coolant amount, the above-mentioned high temperature cold water machine, and the startup of cooling device and drive unit and stopping.
As another kind of technical scheme of the present invention, the present invention also provides a kind of wind turbine generator, it comprise be used for wind energy transformation be electric energy Blast Furnace Top Gas Recovery Turbine Unit (TRT), at least one is used to settle the unsteady flow cabinet of current transformer, and above-mentioned be used to cool off the current transformer in described at least one unsteady flow cabinet and the airtight cabinet cooling system of other heater members provided by the invention.
Be understandable that above execution mode only is the illustrative embodiments that adopts for principle of the present invention is described, the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement also are considered as protection scope of the present invention.
Claims (17)
1. an airtight cabinet cooling system is used to cool off the heater members at least one airtight cabinet, it is characterized in that, comprises circulation canal, cooling device, heat-exchange device, drive unit and heat exchange medium; Described heat-exchange device is arranged on the described circulation canal, and described cooling device is connected with described circulation canal or heat-exchange device; Described drive unit drives heat exchange medium and circulates in described circulation canal, and described heat exchange medium carries out heat exchange by described heat-exchange device and described heater members.
2. airtight cabinet cooling system as claimed in claim 1 is characterized in that described heat exchange medium comprises water or air.
3. described airtight cabinet cooling system as claimed in claim 1 is characterized in that described circulation canal comprises circulation air path, circulating water pipe or the combination of the two.
4. described airtight cabinet cooling system as claimed in claim 3 is characterized in that, the wherein part of described circulation canal is near described heater members setting.
5. described airtight cabinet cooling system as claimed in claim 3, it is characterized in that, described circulation air path comprises the outer air channel that is positioned at outside the described airtight cabinet, and described outer air channel is surrounded by described airtight cabinet cabinet wall and the division board that is arranged on described airtight cabinet outside.
6. airtight cabinet cooling system as claimed in claim 3 is characterized in that described circulation canal comprises the air channel that is positioned at described airtight cabinet, and corresponding to each described airtight cabinet air channel at least one is set.
7. airtight cabinet cooling system as claimed in claim 6 is characterized in that, described interior air channel is surrounded by described airtight cabinet cabinet wall.
8. airtight cabinet cooling system as claimed in claim 6 is characterized in that, described interior air channel is surrounded by described airtight cabinet cabinet wall and the division board that is positioned at described airtight cabinet.
9. airtight cabinet cooling system as claimed in claim 3 is characterized in that described circulating water pipe comprises feed pipe and outlet pipe, and described circulating water pipe is connected with described cooling device.
10. airtight cabinet cooling system as claimed in claim 1 is characterized in that, described heat-exchange device comprises the air water cooling heat-exchanging component that is arranged on the described circulation canal or is configured in described heater members heat abstractor on every side.
11. airtight cabinet cooling system as claimed in claim 1 is characterized in that described drive unit comprises water pump, centrifugal blower or axial flow blower.
12. airtight cabinet cooling system as claimed in claim 1 is characterized in that described cooling device comprises the high temperature cold water machine, is used to provide cooling water.
13. airtight cabinet cooling system as claimed in claim 11 is characterized in that described high temperature cold water machine comprises cooling water circulating device and refrigerating plant.
14. airtight cabinet cooling system as claimed in claim 13 is characterized in that the quantity of described refrigerating plant is one or more.
15. airtight cabinet cooling system as claimed in claim 13 is characterized in that, the cold-producing medium that described refrigerating plant adopts is R134A.
16. airtight cabinet cooling system as claimed in claim 1 is characterized in that, also comprises control device, described control device is used for controlling the startup of described drive unit and cooling device and stopping according to the temperature of described airtight cabinet internal heat generation device.
17. wind turbine generator, comprise that being used for wind energy transformation is that the Blast Furnace Top Gas Recovery Turbine Unit (TRT) of electric energy and at least one are used to settle the unsteady flow cabinet of current transformer, it is characterized in that, also comprise as any described airtight cabinet cooling system of claim 1 to 16, be used to cool off current transformer and other heater members in the described unsteady flow cabinet.
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| CN2011101924304A CN102281742A (en) | 2011-07-01 | 2011-07-01 | Closed cabinet body cooling system and wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101924304A CN102281742A (en) | 2011-07-01 | 2011-07-01 | Closed cabinet body cooling system and wind generating set |
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| CN105768205A (en) * | 2016-05-11 | 2016-07-20 | 常德烟草机械有限责任公司 | Method and device for adjusting and controlling temperature of circulating air flow in fluidized bed |
| CN106787618A (en) * | 2015-11-23 | 2017-05-31 | 南车株洲电力机车研究所有限公司 | A kind of radiator structure, including the structure vehicle-mounted current transformer and its heat dissipating method |
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| CN114744526A (en) * | 2022-04-18 | 2022-07-12 | 菱亚能源科技（深圳）股份有限公司 | Draw-out type low-voltage switch cabinet |
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