CN221427498U

CN221427498U - Oil immersed transformer shell

Info

Publication number: CN221427498U
Application number: CN202323301547.9U
Authority: CN
Inventors: 赵国强; 马德义; 孟祥华
Original assignee: Qingdao Younengchuang Technology Co ltd
Current assignee: Qingdao Younengchuang Technology Co ltd
Priority date: 2023-12-04
Filing date: 2023-12-04
Publication date: 2024-07-26
Anticipated expiration: 2033-12-04

Abstract

The utility model discloses an oil immersed transformer shell, and belongs to the field of transformers. An oil-immersed transformer casing, includes the shell, is provided with the transformer body in the shell, still includes: the cooling fin is fixedly connected to the shell, wherein an air injection plate is fixedly connected to the outer wall of the shell, the air injection plate is arranged below the cooling fin, and an air injection hole is formed in one surface of the air injection plate, facing the cooling fin; the circulating oil pipe is fixedly connected to the bottom of the transformer body, wherein the inner bottom of the shell is fixedly connected with an air inlet ring, blades are rotationally connected in the air inlet ring, the air inlet ring is matched with the circulating oil pipe, and the air inlet ring is communicated with the air injection plate; according to the utility model, on one hand, the temperature of the oil in the circulating oil pipe can be reduced, the temperature of the inside of the transformer is effectively reduced, the local overheating phenomenon of the oil is reduced, and on the other hand, the air-cooled heat dissipation can be carried out on the cooling fin by utilizing the air injection holes, so that the heat generated in the transformer is taken away by the cooling fin.

Description

Oil immersed transformer shell

Technical Field

The utility model relates to the technical field of transformers, in particular to an oil immersed transformer shell.

Background

The oil-immersed transformer shell is a shell for protecting the oil-immersed transformer, and the transformer oil used in the oil-immersed transformer shell is petroleum liquid, but most of the oil-immersed transformers still use the transformer oil as an insulating and cooling medium due to the characteristics of excellent performance and low price of the transformer oil.

However, when the oil-immersed transformer works for a long time with high power, heat in the oil-immersed transformer shell is accumulated for a long time, and the heat of the existing radiating fins is naturally diffused too slowly to be quickly diffused into the outside air, so that the service life of the oil-immersed transformer shell is affected.

Disclosure of utility model

The utility model provides an oil-immersed transformer shell, which aims to solve the problem that the heat dissipation in the oil-immersed transformer shell is too slow in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

An oil-immersed transformer casing, includes the shell, be provided with the transformer body in the shell, still include: the cooling fin is fixedly connected to the shell, wherein an air injection plate is fixedly connected to the outer wall of the shell, the air injection plate is arranged below the cooling fin, and an air injection hole is formed in one surface of the air injection plate, facing the cooling fin; the circulating oil pipe is fixedly connected to the bottom of the transformer body, the air inlet ring is fixedly connected to the bottom in the shell, blades are rotationally connected to the air inlet ring, the air inlet ring is matched with the circulating oil pipe, and the air inlet ring is communicated with the air injection plate.

In order to facilitate the rotation of the turbine blade and the vane on the rotating shaft, preferably, the shell is internally fixedly connected with a guide disc, the guide disc is rotationally connected with the rotating shaft, one end of the rotating shaft extends to the turbine blade fixedly connected with the inside of the guide disc, and the vane is fixedly connected with the other end of the rotating shaft.

In order to be convenient for carry out the circulation to the transformation oil, further, fixedly connected with oil pump in the shell, fixedly connected with reposition of redundant personnel box in the shell, circulation oil pipe is linked together with the reposition of redundant personnel box, the output of oil pump passes through the pipeline and links to each other with the reposition of redundant personnel box is fixed, the input of oil pump passes through pipeline fixed connection on the water conservancy diversion dish.

In order to improve the service life of the blades and the turbine blades, the blades and the turbine blades are preferably made of stainless steel or alloy steel.

In order to improve the heat dissipation effect of the heat dissipation fin and the circulation oil pipe, preferably, the heat dissipation fin and the circulation oil pipe are made of copper or aluminum.

In order to facilitate interception of impurities in air adsorbed by the air inlet ring, preferably, an air inlet port of the air inlet ring is provided with a filter screen.

Compared with the prior art, the utility model provides the oil immersed transformer shell, which has the following beneficial effects:

1. According to the oil immersed transformer shell, through rotation of the blades, outside air can be conveyed to the cavity in the shell, the temperature of oil in circulation in the circulation oil pipe is reduced, heat dissipation of the oil can be further accelerated, the temperature in the transformer is effectively reduced, the heat dissipation effect is improved, and the local overheating phenomenon of the oil is reduced;

2. According to the oil immersed transformer shell, through the air injection holes, air cooling and heat dissipation can be carried out on the radiating fins, heat generated in the transformer is taken away by the radiating fins, heat dissipation efficiency is improved, and the working temperature of the transformer body is reduced.

The device does not relate to the parts which are the same as or can be realized by adopting the prior art, on one hand, the device can cool the circulating oil in the circulating oil pipe, further can accelerate the heat dissipation of the oil, effectively reduce the temperature in the transformer, improve the heat dissipation effect and reduce the local overheating phenomenon of the oil, on the other hand, the device can utilize the air jet holes to perform air cooling heat dissipation on the radiating fins, accelerate the radiating fins to take away the heat generated in the transformer, improve the heat dissipation efficiency and help to reduce the working temperature of the transformer body.

Drawings

Fig. 1 is a schematic structural diagram of a shell of an oil immersed transformer according to the present utility model;

fig. 2 is a schematic structural diagram of a part of a housing of an oil-immersed transformer according to the present utility model;

Fig. 3 is a schematic structural diagram of a deflector of an oil immersed transformer shell according to the present utility model;

Fig. 4 is a schematic structural diagram of the inside of a deflector of an oil immersed transformer shell according to the present utility model;

fig. 5 is a schematic structural diagram of the inside of a shell of an oil-immersed transformer according to the present utility model.

In the figure: 1. a housing; 101. a heat sink; 102. a transformer body; 103. a circulation oil pipe; 104. a shunt box; 2. an air jet plate; 201. a gas injection hole; 3. an oil pump; 4. a deflector disc; 401. a turbine blade; 5. a rotating shaft; 6. an air inlet ring; 601. a blade; 602. and (5) a filter screen.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Examples:

Referring to fig. 1-5, an oil immersed transformer shell comprises a shell 1, a cooling fin 101 made of copper or aluminum is further installed on the outer wall of the shell 1, an air injection plate 2 is further installed below the cooling fin 101, an air injection hole 201 is formed in one face of the air injection plate 2, which faces the cooling fin 101, a transformer body 102 is arranged in the shell 1, a cavity is reserved between the transformer body 102 and the shell 1, a guide disc 4 is further arranged in the cavity, left and right symmetrical circulating oil pipes 103 made of copper or aluminum are further installed below the transformer body 102, two symmetrical split boxes 104 are further installed in the shell 1, in addition, an oil pump 3 is further installed in the shell 1, the output end of the oil pump 3 is fixedly connected with the left split box 104 through a pipeline, the input end of the oil pump 3 is fixedly connected with the guide disc 4 through a pipeline, the left split box 104 is connected with the left circulating oil pipe 103, the right circulating oil pipe 103 is connected with the right split box 104, the right split box 104 is connected with the right split box 104, the right split box 102 is further connected with the right split box 102, and the oil pump 5 is further connected with the right split box 102, and the rotating shaft 5 is further connected with the guide disc 4 when the rotating shaft 5 is further, and the rotating shaft 5 is further arranged in the inner side split box 4, and the rotating shaft is further connected with the rotating shaft 5, and the rotating shaft is further inside the rotating shaft 5 is arranged in the guide disc 4, and the rotating shaft is further inside the rotating shaft 5, and the rotating shaft is mounted in the rotating shaft, and the rotating shaft is inside the rotating shaft is mounted.

In addition, fixedly connected with ring 6 in shell 1, still install filter screen 602 in ring 6's air inlet port department in the ring 6 of admitting air, be used for filtering the dust in the air that gets into, and, the other end of pivot 5 extends to ring 6 internal fixation and installs blade 601, and blade 601 and turbine piece 401 material are stainless steel or alloy steel, in order to improve the life of blade 601 and turbine piece 401, simultaneously, set up the reposition of redundant personnel chamber that is linked together with fumarole 201 in jet plate 2, and reposition of redundant personnel chamber is linked together with the cavity in shell 1, when pivot 5 rotates, then can make blade 601 rotate, and then carry the outside air of shell 1 to the cavity in shell 1, on the one hand, through blade 601 rotation, outside air then can carry the cavity in shell 1, the fluid that is circulating in the circulation oil 103 is cooled down, and then can accelerate the heat dissipation of fluid, effectively reduce the inside temperature of transformer, improve the radiating effect, reduce the local overheated phenomenon of fluid, on the other hand the air that carries then can get into jet plate 2, again by jet plate 201 is discharged, can carry out the radiator 101 to take away the heat dissipation body, the heat dissipation body is carried out to the radiator 101, the heat dissipation efficiency is improved, and the work is cooled down by the radiator 101.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. An oil-immersed transformer casing, includes shell (1), be provided with transformer body (102) in shell (1), its characterized in that still includes:

A heat sink (101) fixedly connected to the housing (1),

The air injection device comprises a shell (1), wherein an air injection plate (2) is fixedly connected to the outer wall of the shell (1), the air injection plate (2) is arranged below a radiating fin (101), and an air injection hole (201) is formed in one surface of the air injection plate (2) facing the radiating fin (101);

A circulating oil pipe (103) fixedly connected to the bottom of the transformer body (102),

The air inlet ring (6) is fixedly connected to the inner bottom of the shell (1), blades (601) are rotationally connected to the air inlet ring (6), the air inlet ring (6) is matched with the circulating oil pipe (103), and the air inlet ring (6) is communicated with the air injection plate (2).

2. An oil immersed transformer housing according to claim 1, wherein a guide disc (4) is fixedly connected in the housing (1), a rotating shaft (5) is rotatably connected on the guide disc (4), one end of the rotating shaft (5) extends to the inside of the guide disc (4) and is fixedly connected with a turbine blade (401), and the blade (601) is fixedly connected to the other end of the rotating shaft (5).

3. The oil immersed transformer shell according to claim 2, wherein an oil pump (3) is fixedly connected in the shell (1), a shunt box (104) is fixedly connected in the shell (1), the circulating oil pipe (103) is communicated with the shunt box (104), an output end of the oil pump (3) is fixedly connected with the shunt box (104) through a pipeline, and an input end of the oil pump (3) is fixedly connected on the guide disc (4) through a pipeline.

4. An oil immersed transformer housing according to claim 2, wherein the blades (601) and the turbine blades (401) are made of stainless steel or alloy steel.

5. An oil immersed transformer housing according to claim 1, wherein the heat sink (101) and the circulation oil pipe (103) are made of copper or aluminum.

6. An oil-filled transformer housing according to claim 1, characterized in that the air inlet port of the air inlet ring (6) is provided with a filter screen (602).