CN203895794U - Heat radiation device for low voltage chamber of box-type transformer - Google Patents
Heat radiation device for low voltage chamber of box-type transformer Download PDFInfo
- Publication number
- CN203895794U CN203895794U CN201420197188.9U CN201420197188U CN203895794U CN 203895794 U CN203895794 U CN 203895794U CN 201420197188 U CN201420197188 U CN 201420197188U CN 203895794 U CN203895794 U CN 203895794U
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- China
- Prior art keywords
- air
- type transformer
- heat exchanger
- pressure chamber
- box type
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000005855 radiation Effects 0.000 title abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 239000003570 air Substances 0.000 description 40
- 230000032683 aging Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009183 running Effects 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 230000000476 thermogenic effect Effects 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a heat radiation device for a low voltage chamber of a box-type transformer. The heat radiation device comprises a housing, an air-to-air heat exchanger, cooling fans, a circulating fan and an automatic control module. The air-to-air heat exchanger, the cooling fan, the circulating fans and the automatic control module are all arranged inside the housing. The air-to-air heat exchanger has an air inlet and a return air inlet. The cooling fans are arranged under the air-to-air heat exchanger and are connected with cooling fins of the air-to-air heat exchanger. The circulating fan is arranged in the air inlet or the return air inlet of the air-to-air heat exchanger. The automatic control module is arranged above the air-to-air heat exchanger, and controls starting of the cooling fans when the internal temperature of the air-to-air heat exchanger is higher than a preset threshold. The heat radiation device guarantees complete heat radiation of the low voltage chamber, prevents pollution in external air from entering the low voltage chamber of the box-type transformer, also prevents noise of the box-type transformer from being leaked, and effectively improves operational reliability of the box-type transformer in high-temperature environments in summer.
Description
Technical field
The utility model relates to a kind of electric power auxiliary equipment, particularly a kind of heat abstractor of box type transformer low-pressure chamber.
Background technology
The change distribution combined electrical apparatus application of the types such as box type transformer (being called for short " case change ") is increasingly extensive, especially European-type box becomes, its inner member connection and reasonable arrangement, inspection travel is convenient, for transformer room be all provided with special thermal window, radiator fan carries out cooling.But but often there is the bad situation of heat radiation in the low tension switch chamber that European-type box becomes, especially summer, under the heat and Exposure to Sunlight thermogenic action of transformer, low tension switch room temperature usually reaches more than 80 DEG C, the ambient temperature limit value allowing considerably beyond equipment such as breaker of plastic casing, not only causes the aging quickening of inner member, also often causes the accident of switch malfunction tripping operation, not only a large amount of waste maintenance manpower and materials, return user and bring unnecessary trouble.For example, for breaker of plastic casing, its specified operating ambient temperature must not be greater than 45 DEG C, under the ambient temperature of 80 DEG C, the circuit breaker that electronics is de-mouthful will be easy to because of the aging malfunction tripping operation of electronic component, the de-mouthful electric current of circuit breaker that heat is de-mouthful will decay to below 60% of rated value, the probability of malfunction tripping operation is high, and case becomes, and the fire causing because of long-term overheated component ageing is quite a few to be seen.
But dependence prior art; the heat dissipation that can carry out case step-down pressure chamber at present is only confined to offer and strengthen louvre, radiator window; or provided with fan; although the means of this increase heat dispersion can reduce ambient temperature; but also extraneous dust, steam etc. together can be brought into low-pressure chamber simultaneously; can cause again inner dust stratification, enter tide, the other problems such as transformer noise leaks, certainly will bring adverse effect to the operation of the low-pressure chamber that contains secondary protection function.In sum, always undecided to the heat dissipation problem of case step-down pressure chamber.
Utility model content
The purpose of this utility model is to provide a kind of heat abstractor of box type transformer low-pressure chamber, guarantee in low-pressure chamber being carried out to fully heat radiation, the pollutant in outside air can be introduced into the low-pressure chamber inside of box type transformer, the noise that also can not cause box type transformer leaks, and has effectively improved the operational reliability of box type transformer in summer high temperature environment.
For achieving the above object, the technical solution of the utility model is to provide a kind of heat abstractor of box type transformer low-pressure chamber, and it comprises a shell, and is all arranged on described enclosure: air-air heat exchanger, and it has an air inlet and a return air inlet; Cooling fan, it is arranged on the bottom of described air-air heat exchanger, and is connected with the radiating fin of described air-air heat exchanger; Circulating fan, it is arranged in the air inlet of described air-air heat exchanger or in return air inlet; Automatic control module, it is arranged on the top of described air-air heat exchanger, the internal temperature that records air-air heat exchanger higher than set threshold value time, control and start cooling fan.
The heat abstractor of box type transformer low-pressure chamber described in the utility model also comprises support, it is arranged on the back of shell, for this heat abstractor is mounted and fixed on to the external wall of box type transformer low-pressure chamber, and make to separate between this heat abstractor and the external wall of box type transformer low-pressure chamber.
Described air inlet and return air inlet are all arranged on the back of shell, are inserted into the inside of low-pressure chamber by the external wall of box type transformer low-pressure chamber.
On the front and back of described shell, be respectively arranged with front shutter and rear shutter, wherein before the corresponding setting of air outlet of fan shutter and described cooling fan.
The front of described shell is also provided with a key lock.
The front of described shell is also provided with some indicator lights.
The heat abstractor of box type transformer low-pressure chamber provided by the utility model, not only overcome the problem that traditional box transformer low voltage chamber lacks heat abstractor, and can guarantee in low-pressure chamber being carried out to fully heat radiation, the low-pressure chamber inside that pollutant in outside air can be introduced into box type transformer, also can not cause that the noise of box type transformer leaks.The utility model can effectively reduce at least 25 DEG C by the temperature in low-pressure chamber, ensures that the indoor equipment of box transformer low voltage can, because of overheated and damage or tripping operation, not improve the operational reliability of box type transformer in summer high temperature environment greatly.
Brief description of the drawings
Fig. 1 is the positive external structure schematic diagram of the heat abstractor of box transformer low voltage chamber in the utility model;
Fig. 2 is the internal structure schematic diagram of the heat abstractor of box transformer low voltage chamber in the utility model;
Fig. 3 is the back side external structure schematic diagram of the heat abstractor of box transformer low voltage chamber in the utility model.
Embodiment
Below in conjunction with Fig. 1～Fig. 3, describe a preferred embodiment of the present utility model in detail.
As shown in Figure 2, the heat abstractor of box type transformer low-pressure chamber provided by the utility model, it comprises a shell 6, and is all arranged on described shell 6 inside: air-air heat exchanger 1, it has an air inlet 4 and a return air inlet 5; Cooling fan 3, it is arranged on the bottom of described air-air heat exchanger 1, and is connected with the radiating fin of described air-air heat exchanger 1; Circulating fan 2, it is arranged in the air inlet 4 of described air-air heat exchanger 1 or in return air inlet 5; As shown in Figure 3, in the present embodiment, described circulating fan 2 is arranged in the air inlet 4 of air-air heat exchanger 1; Automatic control module 7, it is arranged on the top of described air-air heat exchanger 1, automatically control for cooling fan 3 is carried out to temperature, the internal temperature that records air-air heat exchanger 1 higher than set threshold value time, control and start cooling fan 3.
As shown in Figure 3, the utility model also comprises support 9, it is arranged on the back of shell 6, for the heat abstractor of described box type transformer low-pressure chamber being mounted and fixed on to the external wall of box type transformer low-pressure chamber, and make to separate certain distance between this heat abstractor and the external wall of box type transformer low-pressure chamber, guarantee heat sink interior and outside circulation of air.
As shown in Figure 3, described air inlet 4 and return air inlet 5 are all arranged on the back of shell 6, are inserted into the inside of box type transformer low-pressure chamber by external wall, participate in circulation cooling for the air extracting in low-pressure chamber.
As shown in Figure 1, on the front and back of described shell 6, be respectively arranged with front shutter 8 and rear shutter 12, wherein before the corresponding setting of air outlet of fan shutter 8 and described cooling fan 3; Described front shutter 8 and rear shutter 12 be for guaranteeing the airflow of shell 6 inside, prevents that rainwater etc. is splashed into shell 6 inner and other radiating elements are caused and damaged and impact simultaneously.
As shown in Figure 1, the front of described shell 6 is also provided with a key lock, prevents that the radiating element of shell 6 inside is by artificial destruction or pilferage.
As shown in Figure 1, the front of described shell 6 is also provided with some indicator lights 11, for showing power supply and the working condition of whole heat abstractor.
The heat abstractor of box type transformer low-pressure chamber provided by the utility model, the air that makes box type transformer low-pressure chamber inside by circulating fan 2 is constantly at the internal circulation of air-air heat exchanger 1; The internal temperature that records air-air heat exchanger 1 when automatic control module 7 higher than set threshold value time, start cooling fan 3; Now, after cooling fan 3 runnings, just can on the radiating fin of air-air heat exchanger 1, form extraneous air stream endlessly, and take the heat on radiating fin out of shell 6 by front shutter 8 and rear shutter 12, thereby play thermolysis.The heat abstractor that the utility model adopts, air and the ambient air outside of box type transformer low-pressure chamber inside can not be circulated, but heat but can exchange each other, play the effect that steam stop extraneous air in heat radiation in, dust enter low-pressure chamber.
In sum, the utility model has not only overcome the problem that traditional box transformer low voltage chamber lacks heat abstractor, and can guarantee in low-pressure chamber being carried out to fully heat radiation, the low-pressure chamber inside that pollutant in outside air can be introduced into box type transformer, also can not cause that the noise of box type transformer leaks.The utility model can effectively reduce at least 25 DEG C by the temperature in low-pressure chamber, ensures that the indoor equipment of box transformer low voltage can, because of overheated and damage or tripping operation, not improve the operational reliability of box type transformer in summer high temperature environment greatly.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.Read after foregoing those skilled in the art, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection range of the present utility model should be limited to the appended claims.
Claims (6)
1. a heat abstractor for box type transformer low-pressure chamber, is characterized in that, comprises a shell (6), and it is inner to be all arranged on described shell (6):
Air-air heat exchanger (1), it has an air inlet (4) and a return air inlet (5);
Cooling fan (3), it is arranged on the bottom of described air-air heat exchanger (1), and is connected with the radiating fin of described air-air heat exchanger (1);
Circulating fan (2), it is arranged in the air inlet (4) of described air-air heat exchanger (1) or in return air inlet (5);
Automatic control module (7), it is arranged on the top of described air-air heat exchanger (1), the internal temperature that records air-air heat exchanger (1) higher than set threshold value time, control and start cooling fan (3).
2. the heat abstractor of box type transformer low-pressure chamber as claimed in claim 1, it is characterized in that, also comprise support (9), it is arranged on the back of shell (6), for this heat abstractor is mounted and fixed on to the external wall of box type transformer low-pressure chamber, and make to separate between this heat abstractor and the external wall of box type transformer low-pressure chamber.
3. the heat abstractor of box type transformer low-pressure chamber as claimed in claim 2, is characterized in that, described air inlet (4) and return air inlet (5) are all arranged on the back of shell (6), is inserted into the inside of low-pressure chamber by the external wall of box type transformer low-pressure chamber.
4. the heat abstractor of box type transformer low-pressure chamber as claimed in claim 1, it is characterized in that, on the front and back of described shell (6), be respectively arranged with front shutter (8) and rear shutter (12), wherein before fan shutter (8) and the corresponding setting of air outlet of described cooling fan (3).
5. the heat abstractor of box type transformer low-pressure chamber as claimed in claim 1, is characterized in that, the front of described shell (6) is also provided with a key lock.
6. the heat abstractor of box type transformer low-pressure chamber as claimed in claim 1, is characterized in that, the front of described shell (6) is also provided with some indicator lights (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197188.9U CN203895794U (en) | 2014-04-23 | 2014-04-23 | Heat radiation device for low voltage chamber of box-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197188.9U CN203895794U (en) | 2014-04-23 | 2014-04-23 | Heat radiation device for low voltage chamber of box-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895794U true CN203895794U (en) | 2014-10-22 |
Family
ID=51722150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420197188.9U Expired - Lifetime CN203895794U (en) | 2014-04-23 | 2014-04-23 | Heat radiation device for low voltage chamber of box-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944085A (en) * | 2014-04-23 | 2014-07-23 | 国网上海市电力公司 | Heat dissipation device of low-pressure chamber of box-type transformer |
-
2014
- 2014-04-23 CN CN201420197188.9U patent/CN203895794U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944085A (en) * | 2014-04-23 | 2014-07-23 | 国网上海市电力公司 | Heat dissipation device of low-pressure chamber of box-type transformer |
| CN103944085B (en) * | 2014-04-23 | 2016-05-11 | 国网上海市电力公司 | A kind of heat abstractor of box type transformer low-pressure chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |