CN216957672U

CN216957672U - Oil-immersed transformer with air cooling device

Info

Publication number: CN216957672U
Application number: CN202123174059.7U
Authority: CN
Inventors: 陈菊强
Original assignee: Shenzhen Chengpeng Electronics Co ltd
Current assignee: Shenzhen Chengpeng Electronics Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-07-12
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses an oil-immersed transformer with a wind cooling device, and relates to the field of oil-immersed transformer equipment. The utility model comprises an oil immersed transformer body, a cooling box and a heat exchange box, wherein the surface of the oil immersed transformer body is provided with heat absorbing sheets, the outer ring of the oil immersed transformer body is provided with the cooling box, one side of the cooling box is provided with the heat exchange box, the inside of the cooling box is provided with an air cooling mechanism, the utility model can transfer the heat released by the oil immersed transformer body into the cooling box through a plurality of heat absorbing sheets, in addition, the heat exchange box is matched for use, so that the heat exchange efficiency is further enhanced, the heat dissipation effect of the transformer is improved, meanwhile, the air cooling mechanism is arranged so that the air cooling mechanism can fully contact with the low temperature released by the cooling liquid in the cooling box through the air cooling pipe to form cold air.

Description

Oil-immersed transformer with air cooling device

Technical Field

The utility model relates to the field of oil-immersed transformer equipment, in particular to an oil-immersed transformer with a wind cooling device.

Background

The transformer is the device that utilizes electromagnetic induction's principle to change alternating voltage, wherein oil-immersed transformer is a structure more reasonable, the better novel high performance transformer of performance, oil-immersed transformer also can constantly make the oil temperature rise in the course of the work, the oil temperature is generally through the circulation of tank wall and oil tank inside, make the oil temperature reduce, but inside wall and the inside oil circulation process of oil tank are slow, the convective strength of oil is low, be unfavorable for reducing oil-immersed transformer's oil temperature, easily impel the inside oil temperature of oil-immersed transformer under high strength work to constantly rise, there is the potential safety hazard.

According to the inspection, the chinese patent CN201821084625.0 discloses an oil-immersed transformer with convenient heat dissipation, the back of the oil-immersed transformer body is provided with the plurality of water-cooled tubes, so that the oil-immersed transformer body can be efficiently cooled under the action of the compressor and the circulating water pump, the oil-immersed transformer is convenient to rapidly dissipate heat and cool, the efficiency is high, and the heat radiation fans arranged on the box bodies at the two sides effectively radiate heat in all directions, prolong the service life of the oil immersed transformer and are easy to realize, but the patent has problems, the electronic components inside the oil-immersed transformer body are mostly in a closed environment, and when the temperature of the internal environment is too high, the electronic components inside the oil-immersed transformer body can be damaged, thereby shorten transformer life, and heat radiation structure only sets up a plurality of water-cooled tubes and radiator fan at the back, and this kind of mode radiating effect is relatively poor, and the result is limited, and the practicality is lower.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to provide an oil-immersed transformer with a wind cooling device, so as to solve the problems that when the ambient temperature in an oil-immersed transformer body is too high, electronic components in the oil-immersed transformer body can be damaged, the service life of the transformer is shortened, the heat dissipation effect is poor, and the effect is limited.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an oil-immersed transformer with forced air cooling device, includes oil-immersed transformer body, cooler bin and heat transfer case, the surface of oil-immersed transformer body is provided with the heat absorption piece, the cooler bin is installed to the outer lane of oil-immersed transformer body, one side of cooler bin is provided with the heat transfer case, the one end at cooler bin top is connected with annotates the liquid pipe, the inside of cooler bin is provided with forced air cooling mechanism, a plurality of louvres have been seted up to the below in the oil-immersed transformer body outside.

By adopting the technical scheme, the heat released by the oil-immersed transformer body can be transferred to the cooling box by the heat absorbing sheets, and the heat exchanging box is matched for use, so that the cooling liquid filled in the cooling box can circularly flow, the heat exchanging efficiency is further enhanced, the heat radiating effect of the transformer is improved, meanwhile, the fan is started to form air flow, impurities and water vapor in the air are completely removed under the combined action of the dryer and the filter, so that the air can be fully contacted with the low temperature released by the cooling liquid in the cooling box through the cold air pipe to form cold air, the cold air enters the oil-immersed transformer body, the heat can be timely released to the outside from the heat radiating holes, the cooling effect of the transformer is greatly enhanced, and the heat generated by the transformer is effectively dissipated by combining air cooling and water cooling, the cooling effect is very obvious and the efficiency is higher.

Further, the heat transfer case includes circulating pipe, drawing liquid pump and transfer line, the inside of heat transfer case is provided with the circulating pipe, the drawing liquid pump is installed on the top of circulating pipe, and drawing liquid pump and external power source electric connection, the output intercommunication of drawing liquid pump has the transfer line, the one end that the drawing liquid pump was kept away from to the circulating pipe is linked together with the below of cooler bin one side, and the circulating pipe is the crooked column structure setting of S type in the straight direction of footpath, the other end of transfer line is linked together with the top of cooler bin one side, and the inside of cooler bin and heat transfer case all fills there is the coolant liquid.

Through adopting above-mentioned technical scheme, make the inside coolant liquid that fills of cooler bin obtain to reciprocate ground circulation flow, promote the volatile efficiency of heat, further strengthened the heat exchange efficiency of heat absorption piece to the effect of guarantee transformer heat dissipation cooling.

Further, the air cooling mechanism comprises a cold air pipe, a fan, an air inlet pipe, a dryer and a filter, the bottom end of the cold air pipe is connected with the fan, the fan is electrically connected with an external power supply, the input end of the fan is communicated with the air inlet pipe, the other end of the air inlet pipe is communicated with the dryer, and the top of the dryer is communicated with the filter.

Through adopting above-mentioned technical scheme, start the fan, make it form the air current, under the combined action through desicator and filter, clear away totally impurity and vapor in the air comprehensively to it can form cold air through the low temperature abundant contact that the coolant liquid released in cold air duct and the cooler bin, enters into oil immersed transformer body inside, makes the heat release to the external world in time from a plurality of louvres, has strengthened the cooling effect of this transformer widely.

Furthermore, one end of the cold air pipe, which is far away from the fan, penetrates through the top of the cooling box and extends to the inside of the oil immersed transformer body, wherein a sealing ring is arranged at the joint between the cold air pipe and other structures, and the cold air pipe is arranged in an S-shaped bent structure in the radial direction.

Through adopting above-mentioned technical scheme, help strengthening the gas tightness of junction between air conditioning duct and other structures, prevent that the coolant liquid from taking place the seepage phenomenon, reduce the waste of resource, simultaneously, the air conditioning duct that is the crooked column structure of S type setting can increase its and the area of contact between the coolant liquid, has further improved refrigeration effect.

Furthermore, a plurality of the heat absorbing sheets are distributed at equal intervals, one end, far away from the oil immersed transformer body, of each heat absorbing sheet extends to the inside of the cooling box, a sealing strip is arranged at the joint between the heat absorbing sheets and the inside of the cooling box, the heat dissipating holes are connected with the inside of the oil immersed transformer body, and dust covers matched with the heat dissipating holes are arranged inside the heat dissipating holes.

Through adopting above-mentioned technical scheme, make the heat absorbing sheet can transmit to the cooler bin fast to through with the mutual contact between the coolant liquid, improved heat transfer effect widely, promoted the radiating efficiency of transformer, and inside the dust cover can avoid external dust to enter into the transformer through the louvre, shortened the life of transformer.

In summary, the utility model mainly has the following beneficial effects:

1. the oil immersed transformer can transfer heat released by the oil immersed transformer body into the cooling tank through the plurality of heat absorbing sheets, and the liquid pump is started to enable cooling liquid in the cooling tank to enter the circulating pipe, and the temperature of the cooling liquid is reduced after the heat exchange process is realized through low temperature released by the cooling liquid in the heat exchange tank, so that the cooling liquid flows into the cooling tank again under the continuous suction acting force of the liquid pump, the heat exchange efficiency is further enhanced, and the heat dissipation effect of the transformer is improved.

2. According to the utility model, the fan is started to form airflow, impurities and vapor in the air are completely removed under the combined action of the dryer and the filter, so that the impurities and the vapor can be fully contacted with the low temperature released by the cooling liquid in the cooling tank through the cold air pipe to form cold air, the cold air enters the oil-immersed transformer body, the heat can be timely released to the outside from the plurality of heat dissipation holes, the cooling effect of the transformer is greatly enhanced, and according to the fact that the air cooling and the water cooling are combined, the heat generated by the transformer is effectively dissipated, the transformer can be rapidly cooled, the cooling effect is very obvious, and the efficiency is higher.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic perspective view of the cooling box of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. an oil immersed transformer body; 2. a cooling tank; 3. a heat exchange box; 301. a circulation pipe; 302. a liquid pump; 303. a transfusion tube; 4. a heat absorbing sheet; 5. an air cooling mechanism; 501. a cold air pipe; 502. a fan; 503. an air inlet pipe; 504. a dryer; 505. a filter; 6. a liquid injection pipe; 7. and (4) heat dissipation holes.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

The utility model provides an oil-immersed transformer with forced air cooling device, as shown in fig. 1-4, including oil-immersed transformer body 1, cooler bin 2 and heat transfer case 3, the surface of oil-immersed transformer body 1 is provided with heat absorption piece 4, cooler bin 2 is installed to oil-immersed transformer body 1's outer lane, one side of cooler bin 2 is provided with heat transfer case 3, the one end at cooler bin 2 top is connected with annotates liquid pipe 6, the inside of cooler bin 2 is provided with air cooling mechanism 5, a plurality of louvres 7 have been seted up to the below in the oil-immersed transformer body 1 outside.

Referring to fig. 1, the heat exchange box 3 includes a circulation pipe 301, a liquid pump 302 and a liquid transfer pipe 303, the circulation pipe 301 is disposed inside the heat exchange box 3, the liquid pump 302 is installed at the top end of the circulation pipe 301, the liquid pump 302 is electrically connected to an external power source, the liquid transfer pipe 303 is communicated with an output end of the liquid pump 302, one end of the circulation pipe 301, which is far away from the liquid pump 302, is communicated with a lower portion of one side of the cooling box 2, the circulation pipe 301 is arranged in an S-shaped bent structure in the radial direction, the other end of the liquid transfer pipe 303 is communicated with an upper portion of one side of the cooling box 2, and the cooling box 2 and the heat exchange box 3 are both filled with cooling liquid, so that the cooling liquid filled inside the cooling box 2 can flow in a reciprocating and circulating manner, thereby increasing the heat volatilization efficiency, further enhancing the heat exchange efficiency of the heat absorbing fins 4, so as to ensure the heat dissipation and temperature reduction effects of the transformer.

Referring to fig. 1 and 4, the air cooling mechanism 5 includes an air cooling pipe 501, a fan 502, an air inlet pipe 503, a dryer 504 and a filter 505, the bottom end of the air cooling pipe 501 is connected to the fan 502, the fan 502 is electrically connected to an external power supply, the input end of the fan 502 is connected to the air inlet pipe 503, the other end of the air inlet pipe 503 is connected to the dryer 504, the top of the dryer 504 is connected to the filter 505, the fan 502 is started to form an air flow, and impurities and water vapor in the air are completely removed under the combined action of the dryer 504 and the filter 505, so that the air can be sufficiently contacted with the low temperature released by the cooling liquid in the cooling tank 2 through the air cooling pipe 501 to form cold air, and the cold air enters the oil-immersed transformer body 1, so that the heat can be timely released to the outside through a plurality of heat dissipation holes 7, thereby greatly enhancing the cooling effect of the transformer.

Referring to fig. 1, one end of the cold air pipe 501, which is far away from the fan 502, passes through the top of the cooling box 2 and extends into the oil-immersed transformer body 1, wherein a sealing ring is disposed at a joint between the cold air pipe 501 and another structure, and the cold air pipe 501 is arranged in an S-shaped curved structure in a radial direction, which is helpful for enhancing the air tightness at the joint between the cold air pipe 501 and the other structure, preventing the leakage of the cooling liquid, and reducing the waste of resources.

Referring to fig. 1-3, the heat absorbing fins 4 are equidistantly distributed, and one end of the heat absorbing fin 4 away from the oil-immersed transformer body 1 extends into the cooling box 2, and a sealing strip is disposed at a joint between the heat absorbing fin and the cooling box 2, the heat dissipating holes 7 are connected with the inside of the oil-immersed transformer body 1, and dust covers adapted to the heat dissipating holes 7 are disposed inside the heat dissipating holes 7, so that the heat absorbing fin 4 can be rapidly transferred into the cooling box 2, and the heat absorbing fin and the cooling liquid are in mutual contact, thereby greatly improving the heat exchange effect, improving the heat dissipating efficiency of the transformer, preventing external dust from entering the transformer through the heat dissipating holes 7, and shortening the service life of the transformer.

The implementation principle of the embodiment is as follows: firstly, in the using process of the transformer, the fan 502 is started to form an air flow to enter the air inlet pipe 503, impurities and water vapor in the air are completely removed under the combined action of the dryer 504 and the filter 505, so that the impurities and the water vapor in the air can be fully contacted with the low temperature released by the cooling liquid in the cooling box 2 through the cold air pipe 501 to form cold air, the cold air enters the oil-immersed transformer body 1, heat can be timely released to the outside from the plurality of heat dissipation holes 7, meanwhile, the liquid pumping pump 302 is started to enable the cooling liquid in the cooling box 2 to enter the circulating pipe 301 and pass through the low temperature released by the cooling liquid in the heat exchange box 3, the temperature of the cooling liquid is reduced after the heat exchange process is realized, the cooled cooling liquid flows into the cooling box 2 again under the continuous suction acting force of the liquid pumping pump 302, in addition, the plurality of heat absorption sheets 4 can absorb the heat released by the transformer, and the cooling liquid is transmitted to the other end to be fully contacted with the cooling liquid in the cooling box 2, so that the heat dissipation and cooling effects are further improved.

Although embodiments of the present invention have been shown and described, the present embodiments are merely illustrative of the present invention and are not intended to limit the present invention, and the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and those skilled in the art can make modifications, substitutions, variations, etc. of the embodiments as required without departing from the principle and spirit of the present invention, but within the scope of the claims of the present invention.

Claims

1. The utility model provides an oil-immersed transformer with forced air cooling device, includes oil-immersed transformer body (1), cooler bin (2) and heat transfer case (3), its characterized in that: the surface of oil-immersed transformer body (1) is provided with heat absorption piece (4), cooler bin (2) are installed to the outer lane of oil-immersed transformer body (1), one side of cooler bin (2) is provided with heat transfer case (3), the one end at cooler bin (2) top is connected with annotates liquid pipe (6), the inside of cooler bin (2) is provided with forced air cooling mechanism (5), a plurality of louvres (7) have been seted up to the below in the oil-immersed transformer body (1) outside.

2. Oil filled transformer with wind cooling device according to claim 1, characterized by: heat transfer case (3) are including circulating pipe (301), drawing liquid pump (302) and transfer line (303), the inside of heat transfer case (3) is provided with circulating pipe (301), drawing liquid pump (302) are installed on the top of circulating pipe (301), and drawing liquid pump (302) and external power source electric connection, the output intercommunication of drawing liquid pump (302) has transfer line (303).

3. Oil filled transformer with wind cooling device according to claim 2, characterized by: one end of the circulating pipe (301) far away from the liquid pump (302) is communicated with the lower portion of one side of the cooling box (2), the circulating pipe (301) is arranged in an S-shaped bent structure in the radial direction, the other end of the liquid conveying pipe (303) is communicated with the upper portion of one side of the cooling box (2), and cooling liquid is filled in the cooling box (2) and the heat exchange box (3).

4. Oil filled transformer with wind cooling arrangement according to claim 1, characterized by: air-cooled mechanism (5) are including cold air duct (501), fan (502), intake pipe (503), desicator (504) and filter (505), the bottom of cold air duct (501) is connected with fan (502), and fan (502) and external power source electric connection, the input intercommunication of fan (502) has intake pipe (503), the other end intercommunication of intake pipe (503) has desicator (504), the top intercommunication of desicator (504) has filter (505).

5. Oil transformer with wind cooling device according to claim 4, characterized by: one end, far away from the fan (502), of the cold air pipe (501) penetrates through the top of the cooling box (2) and extends to the inside of the oil immersed transformer body (1), wherein a sealing ring is arranged at the joint between the cold air pipe (501) and other structures, and the cold air pipe (501) is arranged in an S-shaped bent structure in the direct direction.

6. Oil filled transformer with wind cooling device according to claim 1, characterized by: the cooling box is characterized in that the heat absorbing sheets (4) are distributed at equal intervals, one end, far away from the oil immersed transformer body (1), of each heat absorbing sheet (4) extends into the cooling box (2), a sealing strip is arranged at the joint between the heat absorbing sheets and the cooling box, the heat dissipating holes (7) are connected with the inside of the oil immersed transformer body (1), and a dust cover matched with the heat dissipating holes (7) is arranged inside the heat dissipating holes (7).