CN203537737U - Cooling system of electrical equipment - Google Patents
Cooling system of electrical equipment Download PDFInfo
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- CN203537737U CN203537737U CN201320725103.5U CN201320725103U CN203537737U CN 203537737 U CN203537737 U CN 203537737U CN 201320725103 U CN201320725103 U CN 201320725103U CN 203537737 U CN203537737 U CN 203537737U
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- cooling system
- electric equipment
- cooling
- refrigerating plant
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Abstract
The utility model provides a cooling system of electrical equipment. The cooling system comprises electrical equipment, a degassing tank, an inflation tank, a pump, and a filter which are connected through a first pipeline to form an enclosed loop; and a refrigeration device. The refrigeration device comprises a first heat exchanger, a compressor, a second heat exchanger, and a throttling element which are connected through a second pipeline to form an enclosed loop. Liquid coolant is disposed in the first pipeline, and the liquid coolant is used for heat exchanging of electrical equipment. Refrigerant is disposed in the second pipeline, so that the refrigeration device can carry out heat exchange with the liquid coolant in the first pipeline and air at external part through the refrigerant. With the cooling system, cooling for the electrical equipment is no longer depending on the environment temperature, defects in the prior art are overcome, work environment temperature of the electrical device is reduced, usage life of the elements in the electrical equipment is prolonged, and accordingly no high-temperature-resistant element is needed, and product cost is saved.
Description
Technical field
The utility model relates to technical field of electricity, more particularly, relates to a kind of cooling system of electric equipment.
Background technology
Along with the development of power electronic technology, the structural design of high-power electrical equipment is more and more compacter, makes inside electric appliance heat more and more concentrated, and inside electric appliance space reduce also cause heat radiation more difficult.In recent years, water-cooling technology has had development at full speed, and it has not only surpassed the radiating modes such as air-cooled, heat pipe on radiating effect, aspect noise control, applied environment adaptability, is also reaching good effect.Therefore,, in the heat radiation of the electric equipment product (comprising the products such as frequency converter, reactive power compensator, wind electric converter and photovoltaic DC-to-AC converter) of high-power, high power density, water cooling method is used widely.
As shown in Figure 1, the water-cooling of electric equipment 1 generally comprises at present: the liquid feed device 2 that the electric equipment 1 cooling with needs is connected, heat exchanger 3, and the pipeline 4 that connects each several part.Wherein, cooling fluid enters electric equipment 1 under the driving of liquid feed device 2, the heat producing during electric equipment 1 work is transferred in cooling fluid, cooling fluid after heat absorption enters heat exchanger 3 under the ordering about of liquid feed device 2, finally by heat exchanger 3 by the heat dissipation in electric equipment 1 in atmosphere.In the process of heat exchanger 3 heat exchange, because heat is finally that the temperature difference by water and air is delivered in atmosphere, so the temperature of water must be higher than the temperature of air.For example, in the time of 45 ℃ of ambient temperatures, the temperature of electric equipment water inlet will be higher than 45 ℃, even higher.
And the electric equipment using in some cases can be placed on the very even bleak and desolate local work of reduced-maintenance, so after the temperature setting once of water inlet, need to work in such entering under coolant-temperature gage, and the temperature of this setting must be higher than high ambient temperature of local year throughout the year.Even if extraneous ambient temperature has dropped to below 0 ℃, at the water inlet temperature that electric equipment also need to set at this, work.If electric equipment is in higher temperature always, work, can make be greatly affected the useful life of device in cabinet, if select resistant to elevated temperatures components and parts, also can cause serious product cost burden.
Utility model content
The technical problems to be solved in the utility model is, for the above-mentioned defect of prior art, provides a kind of cooling system that does not rely on ambient air temperature, can reduce the electric equipment of electric equipment working temperature.
The utility model solves the technical scheme that its technical problem adopts:
Construct a kind of cooling system of electric equipment, wherein, comprise the electric equipment, degassing tank, expansion drum, pump, filter and the refrigerating plant that by the first pipeline, connect into loop; Described refrigerating plant comprises the first heat exchanger, compressor, the second heat exchanger, the restricting element that is in turn connected into loop by the second pipeline; In described the first pipeline, be provided with cooling fluid, for carrying out exchange heat with described electric equipment; In described the second pipeline, be provided with cold-producing medium, described refrigerating plant carries out exchange heat by the cooling fluid in cold-producing medium and described the first pipeline and extraneous air.
Cooling system described in the utility model, wherein, described the first heat exchanger is evaporator, for described the first pipeline in cooling fluid carry out exchange heat.
Cooling system described in the utility model, wherein, described the second heat exchanger comprises condenser and blower fan, for the air with the described external world, carries out exchange heat.
Cooling system described in the utility model, wherein, described degassing tank, expansion drum, pump and filter are arranged on the first pipeline that described electric equipment is connected with described refrigerating plant.
Cooling system described in the utility model, wherein, described electric equipment, described degassing tank, described expansion drum, described pump, described refrigerating plant and described filter connect into loop by described the first pipeline successively.
Cooling system described in the utility model, wherein, described expansion drum is connected on described degassing tank.
Cooling system described in the utility model, wherein, described cooling system also comprises for controlling the flow of described the first pipeline cooling fluid and the pressure and temp control device of temperature.
Cooling system described in the utility model, wherein, described electric equipment comprises frequency converter, reactive power compensator, wind electric converter, photovoltaic DC-to-AC converter.
The beneficial effects of the utility model are: first by cooling fluid and electric equipment, carry out heat exchange, by the cooling fluid in cold-producing medium and the first pipeline and extraneous air, carry out exchange heat again, make the cooling ambient air temperature that do not rely on to electric equipment, overcome the defect of prior art, reduced the operating ambient temperature of electric equipment, improve useful life and the reliability of each device in electric equipment, and therefore do not needed to adopt resistant to elevated temperatures components and parts, can save product cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the water-cooling principle schematic of the electric equipment of prior art;
Fig. 2 is the detailed theory diagram one of cooling system of the electric equipment of the utility model preferred embodiment;
Fig. 3 is the detailed theory diagram two of cooling system of the electric equipment of the utility model preferred embodiment.
Embodiment
The cooling system principle of the electric equipment of the utility model preferred embodiment as shown in Figures 2 and 3, comprises the electric equipment 10, degassing tank 21, expansion drum 22, pump 23, filter 24 and the refrigerating plant 40 that by the first pipeline 30, connect into loop; Refrigerating plant 40 comprises the first heat exchanger, compressor, the second heat exchanger, the restricting element that is in turn connected into loop by the second pipeline 50; In the first pipeline 30, be provided with cooling fluid, for carrying out exchange heat with electric equipment 10; In the second pipeline 50, be provided with cold-producing medium, refrigerating plant 40 carries out exchange heat by the cooling fluid in cold-producing medium and the first pipeline 30 and extraneous air.So first by cooling fluid and electric equipment 10, carry out heat exchange, by the cooling fluid in cold-producing medium and the first pipeline 30 and extraneous air, carry out exchange heat again, due to comprising twice cooling procedure: i.e. the cooling procedure of cold-producing medium to the cooling procedure of the first pipeline 30 interior cooling fluids and the second pipeline 50 inner refrigerants itself, make the cooling ambient air temperature that do not rely on to electric equipment 10, overcome the defect of prior art, reduced the operating ambient temperature of electric equipment 10, useful life and the reliability of each device in electric equipment 10 have been improved, therefore and do not need to adopt resistant to elevated temperatures components and parts, can save product cost.
In above-described embodiment, in refrigerating plant 40, restricting element comprises: capillary, heating power expansion valve, electric expansion valve etc.
In above-described embodiment, the cooling fluid in the first pipeline 30 be in water, ethylene glycol, propylene glycol, glycol water, aqueous solution of propylene glycol any one.
In above-described embodiment, the cold-producing medium in the second pipeline 50 comprises ammonia, propylene, freon, lithium bromide.
In above-described embodiment, the first heat exchanger for the first pipeline 30 in cooling fluid carry out exchange heat, preferably adopt evaporator; The second heat exchanger, for carrying out exchange heat with extraneous air, preferably adopts condenser and blower fan.
Refrigerating plant 40 in above-described embodiment is when work, liquid refrigerant in the first heat exchanger (evaporator) absorbs start vaporizer after the heat of the first pipeline 30 interior cooling fluids, between cold-producing medium in final the second pipeline 50 and the interior cooling fluid of the first pipeline 30, form certain temperature difference, cooling fluid in the first pipeline 30 is cooled, liquid refrigerant also completely evaporates and becomes gaseous state, completes heat exchanging process for the first time; Then gaseous refrigerant is sucked by compressor and compresses, and its pressure and temperature is increased, and gaseous refrigerant, by the second heat exchanger (condenser) release heat, condenses into liquid, completes heat exchanging process for the second time; Then liquid refrigerant, by after restricting element (expansion valve or capillary) throttling, becomes low-temperature low-pressure refrigerant and enters evaporator, completes refrigerant circulation process.
In above-described embodiment, pump 23 is responsible for the cooling fluid in the first pipeline 30 to drive and circulate between electric equipment 10 and refrigerating plant 40, the cooling fluid entering in electric equipment 10 absorbs the interior heat of electric equipment 10, temperature raises, by pump 23, pump into refrigerating plant 40 interior cooling, after being cooled, send back to again in electric equipment 10, circulation and so forth, realization is cooling to electric equipment 10.
Further, as shown in Figure 2, in above-described embodiment, degassing tank 21, expansion drum 22 and pump 23 and filter 24 are arranged on the first pipeline 30 that electric equipment 10 is connected with refrigerating plant 40, degassing tank 21, expansion drum 22, pump 23 and filter 24 order of connection between electric equipment 10 and refrigerating plant 40 can be arbitrarily, arranges as required.
Preferably, as shown in Figure 2, the electric equipment 10 of above-mentioned cooling system, degassing tank 21, expansion drum 22, pump 23, refrigerating plant 40 and filter 24 connect into loop by the first pipeline 30 successively.Degassing tank 21 can be removed gas in the first pipeline 30, makes the wherein smooth and easy circulation of liquid energy; Expansion drum 22 is for carrying out automatic liquid supply to cooling system; Filter 24 can filtering the first pipeline 30 in impurity, guarantee that cooling system runs well.
More preferably, above-mentioned expansion drum 22 is directly connected on degassing tank 21.
Further, as shown in Figure 3, above-mentioned cooling system also comprises for controlling first flow of pipeline 30 cooling fluids and the pressure and temp control device 60 of temperature, specifically can comprise power unit and automatic control section.Wherein, automatically control section can realize to the temperature of refrigerating plant 40 process of refrigerastions control, control to condenser and blower fan running, and can realize the control of coolant rate in the first pipeline 30 etc.
In above-described embodiment, the integrated or discrete setting as required of degassing tank 21, expansion drum 22, pump 23 and filter 24, refrigerating plant 40 and pressure and temp control device 60.For example: in scheme one, degassing tank 21, expansion drum 22, pump 23 and filter 24, refrigerating plant 40 and pressure and temp control device 60 can be integrated in same housing, after integrated, the electric equipment 10 cooling with needs is connected by the first pipeline 30 again, realizes cooling to electric equipment 10.
In scheme two, refrigerating plant 40 and pressure and temp control device 60 can be integrated in same housing, degassing tank 21, expansion drum 22, pump 23 and filter 24 as liquid feed device and integrated after refrigerating plant 40 and pressure and temp control device within 60 minutes, be arranged, by filter 24, degassing tank 21, expansion drum 22(automatic water-replenishing device) and pump 23 form independently liquid feed device, by this liquid feed device, be connected with needing cooling electric equipment 10, realization is cooling to electric equipment 10.
In the various embodiments described above, electric equipment 10 comprises frequency converter, reactive power compensator, wind electric converter, photovoltaic DC-to-AC converter etc.
To sum up, the utility model first carries out heat exchange by cooling fluid and electric equipment 10, by the cooling fluid in cold-producing medium and the first pipeline 30 and extraneous air, carry out exchange heat again, make the cooling ambient air temperature that do not rely on to electric equipment 10, overcome the defect of prior art, reduced the operating ambient temperature of electric equipment 10, improved the useful life of each device in electric equipment 10, and therefore do not need to adopt resistant to elevated temperatures components and parts, can also save product cost.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (8)
1. the cooling system of an electric equipment, it is characterized in that, comprise the electric equipment (10), degassing tank (21), expansion drum (22), pump (23), filter (24) and the refrigerating plant (40) that by the first pipeline (30), connect into loop; Described refrigerating plant (40) comprises the first heat exchanger, compressor, the second heat exchanger, the restricting element that is in turn connected into loop by the second pipeline (50); In described the first pipeline (30), be provided with cooling fluid, for carrying out exchange heat with described electric equipment (10); In described the second pipeline (50), be provided with cold-producing medium, described refrigerating plant (40) carries out exchange heat by the cooling fluid in cold-producing medium and described the first pipeline (30) and extraneous air.
2. cooling system according to claim 1, is characterized in that, described the first heat exchanger is evaporator, for described the first pipeline (30) in cooling fluid carry out exchange heat.
3. cooling system according to claim 1, is characterized in that, described the second heat exchanger comprises condenser and blower fan, for the air with the described external world, carries out exchange heat.
4. cooling system according to claim 1, it is characterized in that, described degassing tank (21), expansion drum (22), pump (23) and filter (24) are arranged on the first pipeline (30) that described electric equipment (10) is connected with described refrigerating plant (40).
5. cooling system according to claim 4, it is characterized in that, described electric equipment (10), described degassing tank (21), described expansion drum (22), described pump (23), described refrigerating plant (40) and described filter (24) connect into loop by described the first pipeline (30) successively.
6. cooling system according to claim 4, is characterized in that, described expansion drum (22) is connected on described degassing tank (21).
7. cooling system according to claim 1, is characterized in that, described cooling system also comprises for controlling the flow of described the first pipeline (30) cooling fluid and the pressure and temp control device (60) of temperature.
8. cooling system according to claim 1, is characterized in that, described electric equipment (10) comprises frequency converter, reactive power compensator, wind electric converter, photovoltaic DC-to-AC converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725103.5U CN203537737U (en) | 2013-11-15 | 2013-11-15 | Cooling system of electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725103.5U CN203537737U (en) | 2013-11-15 | 2013-11-15 | Cooling system of electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203537737U true CN203537737U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320725103.5U Expired - Fee Related CN203537737U (en) | 2013-11-15 | 2013-11-15 | Cooling system of electrical equipment |
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| CN (1) | CN203537737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103648252A (en) * | 2013-11-15 | 2014-03-19 | 深圳市禾望电气有限公司 | Cooling system for electrical device |
-
2013
- 2013-11-15 CN CN201320725103.5U patent/CN203537737U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103648252A (en) * | 2013-11-15 | 2014-03-19 | 深圳市禾望电气有限公司 | Cooling system for electrical device |
| CN103648252B (en) * | 2013-11-15 | 2017-02-01 | 深圳市禾望电气股份有限公司 | Cooling system for electrical device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN HOPEWIND ELECTRIC CO., LTD. Free format text: FORMER NAME: SHENZHEN HEWANG ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518055 Guangdong city in Shenzhen Province, Nanshan District, Xili Town Dragon Village Second Industrial Zone 5 Patentee after: SHENZHEN HOPEWIND ELECTRIC Co.,Ltd. Address before: 518055 Guangdong city in Shenzhen Province, Nanshan District, Xili Town Dragon Village Second Industrial Zone 5 Patentee before: SHENZHEN HOPEWIND ELECTRIC Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |
Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili town village official Liuzhou Industrial Zone No. 5 Building second layer 1-3 Patentee after: SHENZHEN HOPEWIND ELECTRIC Co.,Ltd. Address before: 518055 Guangdong city in Shenzhen Province, Nanshan District, Xili Town Dragon Village Second Industrial Zone 5 Patentee before: SHENZHEN HOPEWIND ELECTRIC Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20211115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |