Oil immersion system for transformer body

Abstract

The present application relates to the technical field of mutual inductor manufacturing, and particularly relates to a mutual inductor body centralized oil immersion system, which comprises an oil immersion tank, an oil storage tank, a vacuum unit, an oil purification unit, a mutual inductor body, a pipeline assembly, a control assembly and a sealing assembly; the upper portion of the oil immersion tank is provided with the pipeline assembly, one end of the pipeline assembly is provided with the oil storage tank, the outer portion of the oil storage tank is provided with the vacuum unit, the oil storage tank and the vacuum unit are connected through the pipeline assembly, the outer portion of the vacuum unit is provided with the oil purification unit, the inner portion of the oil immersion tank is provided with the mutual inductor body, the outer side of the pipeline assembly is provided with the control assembly, and the upper portion of the oil immersion tank is provided with the sealing assembly; the present application can perform vacuum oil immersion treatment on batched bodies, can enhance oil injection effect and reduce dispersivity; the system can flush the outer surface of the body through hot oil circulation during oil immersion, the present system is provided with an oil storage tank, which can reduce dependence on external components, thereby reducing body exposure time and energy consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mutual inductor manufacturing, in particular to a mutual inductor body centralized oil immersion system. BACKGROUND

[0002] After the oil-immersed current transformer is dried, it is assembled in the mutual inductor shell for vacuum oil immersion treatment; currently, the traditional vacuum oil injection needs to be operated by single vacuum pumping, and the traditional vacuum oil injection has the following problems: the vacuum oil injection needs to be performed after each product is assembled and leak tested, the exposure time is long, and the body has the risk of being damp; the vacuum oil injection for each product needs to be performed by multiple units, which consumes a lot of energy; the shell and other components are dependent, and if the supply of parts is not timely, the production progress will be affected; there are more or less dust and impurities on the surface of the body, and such impurities remaining in the product will affect the later operation of the product.

[0003] Therefore, in view of the above problems, a mutual inductor body centralized oil immersion system is provided, which can perform vacuum oil immersion treatment on a batch of bodies, can enhance the oil injection effect and reduce dispersion; the system can flush the outer surface of the body by hot oil circulation during oil immersion, and the system has a self-contained oil tank, which can reduce the dependence on external components, thereby reducing the exposure time of the body and energy consumption. SUMMARY

[0004] In order to overcome the problems of the traditional vacuum oil injection, such as long exposure time, risk of body damp, need for multiple units to perform vacuum oil injection for each product, large energy consumption, and more or less dust and impurities on the surface of the body, which will affect the later operation of the product.

[0005] The technical scheme of the present application is as follows: a mutual inductor body centralized oil immersion system, comprising an oil immersion tank, an oil storage tank, a vacuum unit, an oil purification unit, a mutual inductor body, a pipeline assembly, a control assembly, and a sealing assembly; the oil immersion tank is provided with the pipeline assembly at the top, one end of the pipeline assembly is provided with the oil storage tank, the outside of the oil storage tank is provided with the vacuum unit, the oil storage tank and the vacuum unit are connected through the pipeline assembly, the outside of the vacuum unit is provided with the oil purification unit, the inside of the oil immersion tank is provided with the mutual inductor body device, the outside of the pipeline assembly is provided with the control assembly, and the top of the oil immersion tank is provided with the sealing assembly.

[0006] Preferably, the transformer body is quickly placed into the oil immersion tank, and the vacuum unit is started to evacuate the oil immersion tank. After the process time is reached, transformer oil is injected into the oil immersion tank through the oil storage tank. After the tank is full and the process time is reached, the oil purification unit is started to circulate and purify the transformer oil in the oil immersion tank, thereby achieving the purpose of rinsing the transformer body. Multiple sets of transformer bodies can be placed in the oil immersion tank, so that batches of bodies can be vacuum immersed in oil, which can enhance the oil injection effect and reduce dispersion. During immersion, the outer surface of the body is rinsed by hot oil circulation. The built-in oil storage tank can reduce the dependence on external components, reduce the exposure time of the body, and reduce energy consumption.

[0007] Preferably, the piping assembly includes a vacuum pipe and an oil delivery pipe; a vacuum pipe is provided above the oil immersion tank, one end of which is connected to the input end of the vacuum unit, and an oil delivery pipe is provided above the oil immersion tank, one end of which is connected to the output end of the oil storage tank.

[0008] Preferably, the piping assembly also includes a purification pipe and a first circulation pipe; a purification pipe is provided on one side of the oil immersion tank, one end of the purification pipe is connected to the input end of the oil purification unit, and a first circulation pipe is provided at the output end of the oil purification unit, the other end of the first circulation pipe is connected to the oil storage tank.

[0009] Preferably, the piping assembly also includes a second vacuum pipe; the output end of the vacuum unit is provided with a second vacuum pipe, and the other end of the second vacuum pipe is connected to the oil storage tank.

[0010] Preferably, the control assembly includes a first electric valve and a second electric valve; the first electric valve is installed on the outside of the oil pipeline, and the second electric valve is installed on the outside of the purification pipeline.

[0011] Preferably, the enclosure includes a cover and an inlet pipe; the cover is located above the oil immersion tank, and the inlet pipe is located above the cover.

[0012] Preferably, the enclosure also includes an output pipe; the output pipe is disposed above the cover plate.

[0013] The beneficial effects of this invention are:

[0014] 1. By quickly placing the current transformer body into the oil immersion tank, the vacuum unit is started to evacuate the oil immersion tank. After the process time is reached, transformer oil is injected into the oil immersion tank through the oil storage tank. After filling and reaching the process time, the oil purification unit is started to circulate and purify the transformer oil in the oil immersion tank, thereby achieving the purpose of rinsing the current transformer body. Multiple sets of current transformer bodies can be placed in the oil immersion tank, so that batches of bodies can be vacuum immersed in oil, which can enhance the oil injection effect and reduce dispersion. During oil immersion, the outer surface of the body is rinsed by hot oil circulation. The built-in oil storage tank can reduce the dependence on external components, reduce the exposure time of the body, and reduce energy consumption. Attached Figure Description

[0015] Figure 1 The diagram shown is a first three-dimensional structural schematic of the centralized oil immersion system for the transformer body of the present invention.

[0016] Figure 2 The diagram shown is a three-dimensional cross-sectional view of the centralized oil immersion system for the transformer body of the present invention.

[0017] Figure 3 The diagram shown is a second three-dimensional structural schematic of the centralized oil immersion system for the transformer body of the present invention.

[0018] Figure 4 The diagram shown is a partial three-dimensional structural schematic of the centralized oil immersion system for the transformer body of the present invention;

[0019] Explanation of reference numerals in the attached drawings: 1. Immersion tank; 2. Storage tank; 3. Vacuum unit; 4. Oil purification unit; 5. Current transformer body; 201. Vacuum pipeline; 202. Oil delivery pipeline; 203. Purification pipeline; 204. First circulation pipeline; 205. Second vacuum pipeline; 301. First electric valve; 302. Second electric valve; 401. Cover plate; 402. Input pipe; 403. Output pipe. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figure 1 This invention provides an embodiment of a centralized oil immersion system for current transformer bodies, comprising an oil immersion tank 1, an oil storage tank 2, a vacuum unit 3, an oil purification unit 4, a current transformer body 5, a piping assembly, a control assembly, and a sealing assembly; a piping assembly is disposed above the oil immersion tank 1, and an oil storage tank 2 is disposed at one end of the piping assembly; a vacuum unit 3 is disposed outside the oil storage tank 2, and the oil storage tank 2 and the vacuum unit 3 are connected through the piping assembly; an oil purification unit 4 is disposed outside the vacuum unit 3; the current transformer body 5 is disposed inside the oil immersion tank 1; a control assembly is disposed outside the piping assembly; and a sealing assembly is disposed above the oil immersion tank 1.

[0022] Please seeFigures 2-4 In this embodiment, the piping assembly includes a vacuum pipe 201 and an oil delivery pipe 202. The vacuum pipe 201 is positioned above the oil immersion tank 1, with one end connected to the input end of the vacuum unit 3. The oil delivery pipe 202 is positioned above the oil immersion tank 1, with one end connected to the output end of the oil storage tank 2. The piping assembly also includes a purification pipe 203 and a first circulation pipe 204. The purification pipe 203 is positioned on one side of the oil immersion tank 1, with one end connected to the input end of the oil purification unit 4. The output end of the oil purification unit 4 is connected to the first circulation pipe. 204. The other end of the first circulation pipe 204 is connected to the oil storage tank 2. The pipeline assembly also includes a second vacuum pipe 205. The output end of the vacuum unit 3 is provided with a second vacuum pipe 205. The other end of the second vacuum pipe 205 is connected to the oil storage tank 2. When in use, the vacuum unit 3 is started to evacuate the oil immersion tank 1 through the vacuum pipe 201. The transformer oil in the oil storage tank 2 is injected into the oil immersion tank 1 through the oil delivery pipe 202. The transformer oil in the oil immersion tank 1 is introduced into the oil purification unit 4 through the purification pipe 203 and introduced into the oil storage tank 2 through the first circulation conduit to achieve circulation purification.

[0023] The control assembly includes a first electric valve 301 and a second electric valve 302. The first electric valve 301 is located on the outside of the oil pipeline 202, and the second electric valve 302 is located on the outside of the purification pipeline 203. During use, the first electric valve 301 controls the opening and closing of the oil pipeline 202, and the second electric valve 302 controls the opening and closing of the purification pipeline 203. The sealing assembly includes a cover plate 401 and an inlet pipe 402. A cover plate 401 is located above the oil immersion tank 1, and an inlet pipe 402 is located above the cover plate 401. The sealing assembly also includes an outlet pipe 403. The outlet pipe 403 maintains the air pressure in the oil immersion tank 1 at a negative pressure state. The cover plate 401 seals the top of the oil immersion tank 1, and the inlet pipe 402 introduces the transformer oil from the oil pipeline 202 into the oil immersion tank 1.

[0024] During the process, the transformer body 5 to be processed is first placed quickly and securely into the oil immersion tank 1. Then, the vacuum unit 3 is started. This unit is connected to the oil immersion tank 1 through the vacuum pipe 201 to begin the vacuuming process. The purpose of this step is to remove air and moisture from the tank and the surface of the transformer body, creating the best vacuum environment for the subsequent oil immersion process. The vacuuming process must continue until the predetermined process time is reached to ensure that the air inside and on the surface of the transformer body is fully removed.

[0025] Once the immersion tank 1 reaches the required vacuum level, the oil filling operation is then carried out. The first electric valve 301 in the control assembly opens the oil delivery pipeline 202, allowing the transformer oil in the storage tank 2 to be slowly injected into the immersion tank 1 under the action of gravity or a pump. When the immersion tank 1 is full and the predetermined immersion time has been reached, the oil purification unit 4 is started. This unit is connected to the immersion tank 1 through the purification pipeline 203, which draws in the transformer oil in the tank and performs circulation purification treatment. The purified transformer oil is then reinjected into the storage tank 2 through the first circulation pipeline 204, forming a closed-loop circulation. This process not only removes impurities and moisture from the oil, but also effectively washes the outer surface of the transformer body through hot oil circulation, removing dust and impurities adhering to the transformer body.

[0026] Throughout the oil immersion process, precise control of the oil delivery pipeline 202 and the purification pipeline 203 can be achieved by controlling the opening and closing of the first electric valve 301 and the second electric valve 302, thereby ensuring the smooth progress of the oil injection and purification process. At the same time, the cover plate 401 in the sealing assembly ensures the sealing of the oil immersion tank 1, preventing the entry of external air and impurities. After the oil immersion process is completed, all valves are closed, the cover plate 401 is opened, and the oil-immersed transformer body 5 is removed from the oil immersion tank 1 for subsequent assembly and testing. The entire system, through its built-in oil storage tank 2 and circulation purification function, not only reduces dependence on external components but also greatly reduces the exposure time of the transformer body and energy consumption, thereby improving the efficiency and quality of the oil immersion process.

[0027] Through the above steps, the transformer body 5 is quickly placed into the oil immersion tank 1, and the vacuum unit 3 is started to evacuate the oil immersion tank 1. After the process time is reached, transformer oil is injected into the oil immersion tank 1 using the oil storage tank 2. After filling and reaching the process time, the oil purification unit 4 is started to circulate and purify the transformer oil in the oil immersion tank 1, thereby achieving the purpose of rinsing the transformer body 5. Multiple sets of transformer bodies 5 can be placed in the oil immersion tank 1, so that batches of bodies can be vacuum-immersed in oil, which can enhance the oil injection effect and reduce dispersion. During the immersion, hot oil circulation is used to rinse the outer surface of the body. The use of the built-in oil storage tank 2 can reduce the dependence on external components, reduce the exposure time of the body, and reduce energy consumption.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A centralized oil immersion system for a transformer body, comprising an oil immersion tank (1); characterized in that: The oil immersion tank (1) is provided with a pipeline assembly, a control assembly and a sealing assembly above the oil immersion tank (1); one end of the pipeline assembly is provided with the oil storage tank (2), the outside of the oil storage tank (2) is provided with the vacuum unit (3), the oil storage tank (2) and the vacuum unit (3) are connected through the pipeline assembly, the outside of the vacuum unit (3) is provided with the oil purification unit (4), the inside of the oil immersion tank (1) is provided with the transformer body (5), the outside of the pipeline assembly is provided with the control assembly, and the oil immersion tank (1) is provided with the sealing assembly above the oil immersion tank (1); The pipeline assembly comprises a vacuum pipeline (201) and an oil pipeline (202); the vacuum pipeline (201) is arranged above the oil immersion tank (1), one end of the vacuum pipeline (201) is connected with the input end of the vacuum unit (3), the oil pipeline (202) is arranged above the oil immersion tank (1), and one end of the oil pipeline (202) is connected with the output end of the oil storage tank (2). The pipeline assembly further comprises a purification pipeline (203) and a first circulating pipeline (204); the purification pipeline (203) is arranged on one side of the oil immersion tank (1), one end of the purification pipeline (203) is connected with the input end of the oil purification unit (4), the output end of the oil purification unit (4) is provided with the first circulating pipeline (204), and the other end of the first circulating pipeline (204) is connected with the oil storage tank (2).

2. The transformer tank centralized oil-immersion system according to claim 1, characterized in that: The pipeline assembly further comprises a second vacuum pipeline (205); the output end of the vacuum unit (3) is provided with the second vacuum pipeline (205), and the other end of the second vacuum pipeline (205) is connected with the oil storage tank (2).

3. The transformer tank centralized oil-immersion system according to claim 1, characterized in that: The control assembly comprises a first electric valve (301) and a second electric valve (302); the outside of the oil pipeline (202) is provided with the first electric valve (301), and the outside of the purification pipeline (203) is provided with the second electric valve (302).

4. The transformer tank centralized oil-immersion system according to claim 1, characterized in that: The sealing assembly comprises a cover plate (401) and an input pipe (402); the cover plate (401) is arranged above the oil immersion tank (1), and the input pipe (402) is arranged above the cover plate (401).

5. The transformer tank centralized oil immersion system according to claim 4, characterized in that: The sealing assembly further comprises an output pipe (403); the output pipe (403) is arranged above the cover plate (401).

Images