CN219066567U

CN219066567U - Dry-type power transformer

Info

Publication number: CN219066567U
Application number: CN202320001858.4U
Authority: CN
Inventors: 魏晓蓉
Original assignee: Sichuan Qinhong Electric Co ltd
Current assignee: Sichuan Qinhong Electric Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-05-23
Anticipated expiration: 2033-01-03

Abstract

The utility model relates to a dry-type power transformer in the technical field of transformers, wherein a cooling pipe is fixedly arranged in an inner cavity of a connecting block, a blowing fan is embedded in the bottom surface of the inner cavity of the connecting block, one end of the cooling pipe is fixedly connected with a water pump, one side of the water pump is fixedly connected with a conveying pipe, one side of the conveying pipe is fixedly connected with a water tank, one side of the conveying pipe is fixedly connected with a cold heat exchanger, an exhaust fan is embedded in the top surface of the protective box, and the cooling liquid can be recycled through the cooling pipe, the cold heat exchanger, the conveying pipe, the water tank and the water pump, so that cold air can be continuously provided, and the surface heat dissipation of a transformer body is facilitated.

Description

Dry-type power transformer

Technical Field

The utility model relates to the technical field of transformers, in particular to a dry type power transformer.

Background

The dry power transformer is a transformer in which the iron core and windings are not immersed in insulating oil, and the cooling mode is divided into natural air cooling and forced air cooling, and when in natural air cooling, the transformer can continuously operate for a long time under rated capacity. When forced air cooling is performed, the output capacity of the transformer can be improved by 50%, and the transformer is suitable for intermittent overload operation or emergency accident overload operation.

The existing dry-type power transformer is relatively large in quantity of heat generated during use due to the fact that the existing dry-type power transformer is relatively large in quantity of internal electric devices, the heat dissipation performance of the transformer is relatively poor in summer or relatively hot weather, the internal electric devices are often tripped to affect the use, most of the existing dry-type power transformer is installed outdoors, if the protection structure of the outer side is unstable, the risk of the transformer during use is increased, and therefore the dry-type power transformer is provided.

Disclosure of Invention

In view of the above problems, the present utility model provides a dry power transformer, so as to solve the problems in the prior art that the existing dry power transformer has a large number of internal electric devices, generates a large amount of heat during use, and has poor heat dissipation performance in summer or in hot weather.

The technical scheme of the utility model is as follows:

the utility model provides a dry-type power transformer, includes the protective housing, the inside of protective housing is equipped with the transformer body, the bottom fixedly connected with channel-section steel of transformer body, the bottom of channel-section steel and the inside bottom surface fixedly connected with of protective housing, one side fixedly connected with connecting block of channel-section steel, the connecting block is located under the transformer body, the air outlet has been seted up at the inner chamber top of connecting block fixedly, the inner chamber fixed mounting of connecting block has the cooling tube, the inner chamber bottom surface embedding of connecting block has the fan of blowing, the one end fixedly connected with water pump of cooling tube, one side fixedly connected with conveyer pipe of water pump, one side fixedly connected with water tank of conveyer pipe, one side fixedly connected with heat and cold exchanger of conveyer pipe, the top surface embedding of protective housing has the air exhauster.

The working principle of the technical scheme is as follows:

when the internal heat of the protective box is great, the water pump can be started, the water pump can absorb the internal cooling liquid of the water tank and then convey the internal cooling liquid to the cooling pipe, the blowing fan is started, the cooling air emitted from the surface of the cooling pipe is blown to the surface of the transformer body through the air outlet, and the internal air of the protective box is discharged through the exhaust fan at the top, so that the rapid circulation of the internal air of the protective box is realized, and the radiating effect on the surface of the transformer body is greatly improved.

In further technical scheme, the top fixed mounting of protective housing has the protective cover, the inside of protective cover is equipped with the cushion chamber, the inside of protective cover is equipped with the telescopic link, the surface cover of telescopic link is equipped with the spring.

When outdoor weather that needs to wind and rain is worse, cracked branch or the debris that wafts in the sky drop when the top at the protective housing, can keep out the impact of a part to the space object through the protective cover that uses, through spring and telescopic link that are equipped with, can cushion the space object, reduce its own impact to the barrier property to the inside transformer body of protective housing has been improved.

In a further technical scheme, the vent hole is fixedly arranged on one side of the protective cover, and the dustproof net is fixedly arranged in the vent hole.

The ventilation effect of air exhauster to the protective housing inside has been improved through the ventilation hole that is equipped with, can prevent through the dust screen that external dust and impurity from entering into the inside of shield from the ventilation hole, cause the pollution of air exhauster.

In a further technical scheme, first radiating holes are fixedly formed in the surfaces of two sides of the protective box.

The air circulation inside the protective box is improved through the first radiating holes, so that the radiating performance of the device is improved.

In a further technical scheme, the surface of the transformer body is fixedly provided with a plurality of radiating fins, and radiating grooves are formed between the radiating fins.

The radiating fin that through being equipped with can absorb the radiating heat of transformer body self, through the radiating ditch that forms between the fin, the cooperation blows the fan, has improved the radiating effect to the transformer body.

In a further technical scheme, one side of the protective box is rotatably connected with a sealing door, and the surface of the sealing door is fixedly provided with a handle

The whole tightness of the device is improved through the sealing door, and the protection of the transformer body inside the protective box is improved.

The beneficial effects of the utility model are as follows:

1. the dry power transformer can realize the cyclic utilization of the cooling liquid, can continuously provide cool air and is convenient for the surface heat dissipation of the transformer body, the heat dissipation of the transformer body can be absorbed through the heat dissipation fins, and the heat dissipation effect of the transformer body is improved through the heat dissipation grooves formed between the heat dissipation fins and the blowing fan.

2. When the dry-type power transformer is used in the weather that the outdoor needs to be windy and rainy, broken branches or sundries floating in the air fall on the top of the protective box, the protective cover can resist part of impact force to the hollow falling object, and the hollow falling object can be buffered through the spring and the telescopic rod, so that the impact force of the hollow falling object is reduced, and the protective performance of the internal transformer body of the protective box is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic view of the structure of the connecting block of the present utility model;

fig. 4 is a schematic view of a heat sink structure according to the present utility model.

Reference numerals illustrate:

1. a protective box; 2. a first heat radiation hole; 3. sealing the door; 4. a protective cover; 5. a buffer chamber; 6. a telescopic rod; 7. a spring; 8. an exhaust fan; 9. a transformer body; 10. channel steel; 11. a connecting block; 12. an air outlet; 13. a cooling tube; 14. a cold-heat exchanger; 15. a delivery tube; 16. a water tank; 17. a water pump; 18. a heat sink; 19. blowing fan.

Detailed Description

Embodiments of the present utility model are further described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-4, the utility model provides a dry power transformer, which comprises a protective box 1, wherein a transformer body 9 is arranged in the protective box 1, a channel steel 10 is fixedly connected to the bottom of the transformer body 9, the bottom of the channel steel 10 is fixedly connected with the inner bottom surface of the protective box 1, one side of the channel steel 10 is fixedly connected with a connecting block 11, the connecting block 11 is arranged right below the transformer body 9, an air outlet 12 is fixedly arranged at the top of an inner cavity of the connecting block 11, a cooling pipe 13 is fixedly arranged in the inner cavity of the connecting block 11, a blowing fan 19 is embedded in the bottom surface of the inner cavity of the connecting block 11, one end of the cooling pipe 13 is fixedly connected with a water pump 17, one side of the water pump 17 is fixedly connected with a conveying pipe 15, one side of the conveying pipe 15 is fixedly connected with a water tank 16, one side of the conveying pipe 15 is fixedly connected with a cold and heat exchanger 14, and the top surface of the protective box 1 is embedded with an exhaust fan 8.

Specifically, the top fixed mounting of protective housing 1 has protective cover 4, the inside of protective cover 4 is equipped with buffer chamber 5, the inside of protective cover 4 is equipped with telescopic link 6, the surface cover of telescopic link 6 is equipped with spring 7, the fixed ventilation hole of seting up in one side of protective cover 4, the inside fixed mounting in ventilation hole has the dust screen, first louvre 2 has been seted up to the both sides fixed surface of protective housing 1, the fixed surface of transformer body 9 installs fin 18, fin 18 is equipped with a plurality ofly, be equipped with the heat dissipation ditch between the fin 18, one side rotation of protective housing 1 connects sealing door 3, sealing door 3's fixed surface has the handle.

The working principle and the beneficial effects of the embodiment are as follows.

During the use, when the inside heat of protective housing 1 is great, can start water pump 17, water pump 17 can absorb the inside coolant liquid of water tank 16, then carry the inside of cooling tube 13, start blowing fan 19, the air conditioning that blowing fan 19 will cool off the cooling tube 13 surface blows to the surface of transformer body 9 through air outlet 12, the air exhauster 8 through the top is arranged the inside air of protective housing 1 outward, thereby the quick circulation of the inside air of protective housing 1 has been realized, great improvement has the radiating effect to transformer body 9 surface, when the weather that needs to wind down in the open air is more severe, broken branch or drift in the sky drop when the top of protective housing 1, can withstand the impact of a part to the air weight through the protective cover 4 that uses, through the spring 7 and telescopic link 6 that are equipped with, can cushion the air weight, reduce its self impact, thereby the guard performance to the inside transformer body 9 of protective housing 1 has been improved, can absorb the heat of transformer body 9 self through the fin 18, the radiating effect to the radiating fin is formed by the fin between the fin 19, the radiating effect is formed to the radiating fin is matched with the radiating fin 9.

The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims

1. A dry-type power transformer, includes protective housing, its characterized in that: the inside of protective housing is equipped with the transformer body, the bottom fixedly connected with channel-section steel of transformer body, the bottom of channel-section steel and the inside bottom surface fixed connection of protective housing, one side fixedly connected with connecting block of channel-section steel, the connecting block is located under the transformer body, the air outlet has been seted up at the inner chamber top of connecting block fixedly, the inner chamber fixed mounting of connecting block has the cooling tube, the inner chamber bottom surface embedding of connecting block has the fan of blowing, the one end fixedly connected with water pump of cooling tube, one side fixedly connected with conveyer pipe of water pump, one side fixedly connected with water tank of conveyer pipe, one side fixedly connected with heat and cold exchanger of conveyer pipe, the top surface embedding of protective housing has the air exhauster.

2. A dry power transformer according to claim 1, wherein: the top fixed mounting of protective housing has the protective cover, the inside of protective cover is equipped with the cushion chamber, the inside of protective cover is equipped with the telescopic link, the surface cover of telescopic link is equipped with the spring.

3. A dry power transformer according to claim 2, characterized in that: the utility model discloses a dustproof device for a vehicle, including the protective cover, the fixed ventilation hole of seting up in one side of protective cover, the inside fixed mounting in ventilation hole has the dust screen.

4. A dry power transformer according to claim 1, wherein: the surface fixing on two sides of the protective box is provided with first heat dissipation holes.

5. A dry power transformer according to claim 1, wherein: the surface of the transformer body is fixedly provided with a plurality of radiating fins, and radiating grooves are formed between the radiating fins.

6. A dry power transformer according to claim 1, wherein: one side of the protective box is rotatably connected with a sealing door, and a handle is fixedly arranged on the surface of the sealing door.