CN215988315U

CN215988315U - Oil-immersed distribution transformer heat abstractor

Info

Publication number: CN215988315U
Application number: CN202122301920.5U
Authority: CN
Inventors: 钟鸣; 李斌
Original assignee: Wuxi Power Transformer Co ltd
Current assignee: Wuxi Power Transformer Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-08
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a heat dissipating device of an oil-immersed distribution transformer, which belongs to the technical field of transformers, and is characterized by comprising a body, wherein the body can be supported by a supporting seat, a cooling cavity is arranged on the inner wall of the body so as to conveniently input cooling liquid into the body, thus quickly cooling the body and realizing the heat dissipating effect of the body, oil can be conveniently stored by an oil cavity, a heat conducting sheet is arranged in the oil cavity and forms a cooling groove, the heated oil can slowly flow in the oil cavity, thus the contact area between the oil and the heat conducting sheet is enhanced, the heat dissipating effect is enhanced, heat exchange can be further carried out with the oil cavity by a heat dissipating coil pipe, thus realizing the heat dissipating and cooling of the oil cavity and the body, a fan is arranged in the supporting seat, the wind blown out by the fan can be transmitted to a diffusion plate by an air outlet pipe, and then cold wind can be diffused by the diffusion plate, thereby increasing the contact area of cold air and oil pocket and body to improve the radiating effect of body.

Description

Oil-immersed distribution transformer heat abstractor

Technical Field

The utility model relates to the technical field of transformers, in particular to a heat dissipation device for an oil-immersed distribution transformer.

Background

The oil-immersed transformer can be widely applied to many occasions as a large-scale transformer, has the characteristics of large volume, low cost, simple maintenance, good heat dissipation, strong overload capacity and wide environment adaptation, and has the advantages that the energy consumption in the iron core and the winding is converted into heat in the operation process of the traditional oil-immersed transformer, so that the normal operation temperature of the transformer is ensured to have important significance for the service life and the stable operation of the transformer.

However, most of the existing oil-immersed distribution transformer heat dissipation devices only rely on the heat dissipation fins outside the transformer to dissipate heat, so that the heat dissipation capability of the heat dissipation fins in high-temperature weather cannot keep up with the heat generated during the high-load work of the transformer, and the transformer is easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model provides a heat dissipation device of an oil-immersed distribution transformer, aiming at solving the problems.

The utility model is realized in such a way that the oil-immersed distribution transformer heat dissipation device comprises a body, wherein a support seat is installed on the lower end face of the body, a cooling cavity is formed in the inner wall of the body, an oil cavity is installed in the body, a heat conducting fin is installed in the oil cavity, a cooling groove is formed between the heat conducting fin and the oil cavity, heat dissipation coil pipes are installed on the upper end face and the lower end face of the oil cavity, three fans are installed in the support seat, the upper end faces of the three fans are communicated with air outlet pipes, the other ends of the three air outlet pipes sequentially penetrate through the upper end face of the support seat and the cooling cavity, extend into the body and are provided with diffusion plates, and the three diffusion plates are located below the heat dissipation coil pipes below.

In order to improve the heat dissipation performance of the body, the oil-immersed distribution transformer heat dissipation device is preferably provided with the heat dissipation fins at the front end and the rear end of the body, and the outer walls of the two heat dissipation fins are coated with the graphene coating.

In order to dissipate heat and cool oil, the oil-immersed distribution transformer heat dissipation device is preferably configured such that the outer wall of the heat conduction fin is perforated with a plurality of uniformly distributed through holes.

In order to cool the coolant heated in the cooling cavity, the oil-immersed distribution transformer heat dissipation device of the utility model is preferable that the refrigeration chips are mounted on the left side and the right side of the inside of the cooling cavity.

In order to improve the heat dissipation efficiency of the body, the heat-conducting fin is preferably bent, and the plurality of heat-dissipation coil pipes are preferably S-shaped.

In order to facilitate the addition of cooling liquid into the cooling cavity, the oil-immersed distribution transformer heat dissipation device is preferably characterized in that the left side and the right side of the upper end surface of the body are respectively communicated with a liquid inlet and an oil injection pipe, and the lower end surfaces of the liquid inlet and the oil injection pipe are respectively communicated with the cooling cavity and the oil cavity.

Compared with the prior art, the utility model has the beneficial effects that:

the oil-immersed distribution transformer heat dissipation device can support the body through the supporting seat, and is convenient for inputting cooling liquid into the body through arranging the cooling cavity on the inner wall of the body, thereby rapidly cooling the body, realizing the heat dissipation effect of the body, facilitating the storage of oil liquid through the oil cavity, by installing the heat-conducting fins in the oil cavity and forming the cooling groove, the heated oil can slowly flow in the oil cavity, thereby enhancing the contact area between the oil liquid and the heat conducting fins, enhancing the heat dissipation effect, further exchanging heat with the oil cavity through the heat dissipation coil pipe, thereby realizing the heat dissipation and temperature reduction of the oil cavity and the body, the fan is arranged in the supporting seat, the air blown out by the fan can be transmitted to the diffusion plate through the air outlet pipe, and then can be diffused by the diffuser plate to increase the area of contact of cold wind and oil pocket and body, thereby improve the radiating effect of body.

Drawings

Fig. 1 is an overall structural view of a heat dissipation device of an oil-immersed distribution transformer according to the present invention;

fig. 2 is a cross-sectional view of an oil-immersed distribution transformer heat dissipation device of the present invention;

fig. 3 is an enlarged structural view of the utility model at a point a in fig. 2.

In the figure, 1, a body; 101. a cooling chamber; 102. a liquid inlet; 103. a refrigeration chip; 104. an oil filling pipe; 2. an oil chamber; 201. a heat conductive sheet; 202. a cooling tank; 203. a through hole; 3. a heat-dissipating coil pipe; 4. a supporting seat; 401. a fan; 402. a diffusion plate; 5. and a heat sink.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an oil-immersed distribution transformer heat abstractor, including body 1, supporting seat 4 is installed to the lower terminal surface of body 1, cooling chamber 101 has been seted up to the inner wall of body 1, the internally mounted of body 1 has oil pocket 2, the internally mounted of oil pocket 2 has conducting strip 201, cooling bath 202 has been formed between conducting strip 201 and the oil pocket 2, heat dissipation coil pipe 3 is all installed to the upper and lower both ends face of oil pocket 2, the internally mounted of supporting seat 4 has three fan 401, the up end of three fan 401 all communicates out the tuber pipe, the other end that three goes out the tuber pipe all runs through the up end of supporting seat 4 and cools off chamber 101 in proper order and extends to the inside of body 1 and installs the diffuser plate 402, three diffuser plate 402 all is located below heat dissipation coil pipe 3.

In this embodiment: the body 1 can be supported by the supporting seat 4, the cooling cavity 101 is arranged on the inner wall of the body 1, so as to conveniently input the cooling liquid into the cooling cavity, thereby rapidly cooling the body 1, realizing the heat dissipation effect of the body 1, facilitating the storage of oil through the oil cavity 2, by installing the heat-conducting fin 201 in the oil chamber 2 and forming the cooling groove 202, the oil liquid with the temperature increased can flow slowly in the oil chamber 2, thereby increasing the contact area between the oil and the heat-conducting strip 201, enhancing the heat dissipation effect, further exchanging heat with the oil chamber 2 through the heat dissipation coil 3, thereby realizing the heat dissipation and temperature reduction of the oil cavity 2 and the body 1, the fan 401 is arranged in the supporting seat 4, the wind blown out by the fan 401 can be transmitted to the diffusion plate 402 through the air outlet pipe, the diffusion plate 402 can further diffuse the cool air, thereby increasing the contact area between the cool air and the oil chamber 2 and the body 1, and improving the heat dissipation effect of the body 1.

As a technical optimization scheme of the utility model, the front end and the rear end of the body 1 are both provided with the radiating fins 5, and the outer walls of the two radiating fins 5 are both coated with the graphene coating.

In this embodiment: can be with timely the giving off of the heat that body 1 produced through fin 5, and increase heat conduction property through the coating at the outer wall of fin 5 has graphene coating, further improves body 1's heat dispersion.

As a technical optimization scheme of the present invention, the outer wall of the heat conducting fin 201 is perforated with a plurality of uniformly distributed through holes 203.

In this embodiment: through the through holes 203, the oil smoothly and sequentially passes through the heat-conducting fins 201, so that the oil is cooled.

As a technical optimization scheme of the utility model, the left side and the right side inside the cooling cavity 101 are both provided with the refrigeration chips 103.

In this embodiment: the cooling liquid heated in the cooling cavity 101 can be cooled by the refrigeration chip 103, so that the normal use of the cooling liquid is facilitated, and the heat dissipation effect on the body 1 is improved.

As a technical optimization scheme of the present invention, the heat conducting fins 201 are curved, and the plurality of heat dissipation coils 3 are S-shaped.

In this embodiment: be crooked through conducting strip 201, can slow down the velocity of flow of fluid in oil pocket 2 to realize the heat exchange with fluid, be the S-shaped through a plurality of radiating coil 3 and can improve the radiating efficiency to body 1.

As a technical optimization scheme of the utility model, the left side and the right side of the upper end surface of the body 1 are respectively communicated with a liquid inlet 102 and a filling pipe 104, and the lower end surfaces of the liquid inlet 102 and the filling pipe 104 are respectively communicated with the cooling cavity 101 and the oil cavity 2.

In this embodiment: the cooling liquid is added into the cooling cavity 101 through the liquid inlet 102 so as to realize heat dissipation of the body 1, and the oil is injected into the oil cavity 2 through the oil filling pipe 104.

The working principle and the using process of the utility model are as follows: firstly, when the body 1 generates heat and dissipates the heat, cooling liquid can be firstly input into the cooling cavity 101 through the liquid inlet 102, the cooling liquid flows in the cooling cavity 101, meanwhile, the body 1 can be dissipated and cooled, meanwhile, oil in the oil cavity 2 slowly flows in the oil cavity through the through hole 203, in the flowing process, heating oil can be in contact with the heat conducting fins 201, so that the heat conducting fins 201 exchange heat with the oil, cooling and dissipating of the oil are achieved, meanwhile, the heat generated by the oil cavity 2 is absorbed through the two heat dissipating coil pipes 3, the cooling speed of the oil in the oil cavity 2 can be increased, meanwhile, the fan 401 can be started, the fan 401 blows cold air into the body 1, the floating area of the cold air diffusion plate is increased through diffusion of the cold air diffusion plate 402, and further heat dissipation of the oil cavity 2 and the body 1 can be achieved.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an oil-immersed distribution transformer heat abstractor, includes body (1), its characterized in that: a supporting seat (4) is arranged on the lower end surface of the body (1), a cooling cavity (101) is arranged on the inner wall of the body (1), an oil cavity (2) is arranged in the body (1), a heat conducting fin (201) is arranged in the oil cavity (2), a cooling groove (202) is formed between the heat conducting sheet (201) and the oil cavity (2), the upper end surface and the lower end surface of the oil cavity (2) are both provided with a heat radiation coil pipe (3), the internally mounted of supporting seat (4) has three fan (401), and is three the up end of fan (401) all communicates there is the play tuber pipe, and is three the other end that goes out the tuber pipe all runs through the up end of supporting seat (4) and cools off chamber (101) in proper order and extends to the inside of body (1) and installs diffuser plate (402), and is three diffuser plate (402) all are located the below of below heat dissipation coil pipe (3).

2. The oil-filled distribution transformer heat dissipation device of claim 1, wherein: radiating fins (5) are installed at the front end and the rear end of the body (1), and graphene coatings are coated on the outer walls of the radiating fins (5).

3. The oil-filled distribution transformer heat dissipation device of claim 1, wherein: the outer wall of the heat conducting fin (201) is provided with a plurality of through holes (203) which are uniformly distributed in a penetrating way.

4. The oil-filled distribution transformer heat dissipation device of claim 1, wherein: refrigeration chips (103) are installed on the left side and the right side of the interior of the cooling cavity (101).

5. The oil-filled distribution transformer heat dissipation device of claim 1, wherein: the heat conducting fins (201) are bent, and the plurality of heat radiating coil pipes (3) are S-shaped.

6. The oil-filled distribution transformer heat dissipation device of claim 1, wherein: the left side and the right side of the upper end face of the body (1) are respectively communicated with a liquid inlet (102) and an oil filling pipe (104), and the lower end faces of the liquid inlet (102) and the oil filling pipe (104) are respectively communicated with the cooling cavity (101) and the oil cavity (2).