Forced oil circulation water-cooling power transformer

Abstract

The utility model relates to the technical field of power transformers, in particular to a forced oil circulation water-cooling power transformer which comprises a transformer oil tank body and a pool body, and a transverse pipe and a pipe seat which are used for guiding flow are assembled on the surface of the outer side wall of the transformer oil tank body. When the power transformer is used, the oil pump can operate and conveniently pump a transformer oil layer on the inner side of the transformer oil tank body, so that the transformer oil layer can enter the transverse pipe and can be conveniently guided into the concentric-square-shaped bent pipe on the inner side of the pool body, and cooling water on the inner side of the pool body can conveniently cool transformer oil in the concentric-square-shaped bent pipe; and then the cooled transformer oil conveniently flows back to the inner side of the pipe seat through the branch pipe and conveniently enters the inner side of the transformer oil tank main body through guiding of the pipe seat, so that the heat dissipation effect of the transformer oil is improved, the transformer oil is matched with a circulating water cooling structure on the inner side of the transformer oil tank main body, and the stability of the transformer oil during operation is improved. And the transformer coil main body can operate more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of power transformers, in particular to a forced oil circulation water-cooled power transformer. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. Its main components are the primary coil, secondary coil, and iron core (magnetic core); Patent No. CN201921093150.6 discloses an oil-immersed power transformer for a community. An oil stirring blade is installed at the lower part of the transformer coil to drive the transformer oil to flow uniformly in the inner cavity of the transformer oil tank body, making the temperature of the transformer oil more uniform and avoiding damage to the transformer coil caused by excessive local heat concentration. The added circulating water-cooling pipe and water guiding pump enhance the heat dissipation function of the transformer; however, since the transformer oil inside the power transformer can only flow inside and is cooled by the circulating water-cooling pipe, the heat dissipation efficiency of the transformer oil is low. For this reason, we propose a forced oil circulation water-cooled power transformer. Summary of the Utility Model

[0003] In view of the problems in the prior art, the utility model provides a forced oil circulation water-cooled power transformer.

[0004] The technical solution adopted by the utility model to solve its technical problems is a forced oil circulation water-cooled power transformer, which includes a transformer oil tank main body and a pool body. A horizontal pipe and a pipe seat for guiding are assembled on the outer side wall surface of the transformer oil tank main body. One end of the horizontal pipe away from the transformer oil tank main body is assembled with an oil pump, and a return bend pipe connected to the oil outlet end of the oil pump is assembled on the inner bottom surface of the pool body. A branch pipe for guiding is detachably installed between the end of the return bend pipe away from the oil pump and the pipe seat. A transformer coil main body is assembled inside the transformer oil tank main body, and a transformer oil layer located outside the transformer coil main body is filled inside the transformer oil tank main body;

[0005] A washer for support is screwed and installed inside the pipe seat, and a cross bar for support is assembled inside the washer. A sphere for flow distribution is integrally formed at one end of the cross bar located inside the transformer oil tank main body.

[0006] By adopting the above technical solution, when the power transformer is used, the oil pump can operate and conveniently extract the transformer oil layer inside the transformer oil tank body, so that the transformer oil layer can enter the horizontal pipe and be conveniently guided into the round-shaped bend pipe inside the pool body, and the cooling water inside the pool body is convenient for cooling the transformer oil in the round-shaped bend pipe, and then the cooled transformer oil is convenient to flow back into the inside of the pipe seat through the branch pipe, and conveniently enter the inside of the transformer oil tank body through the guidance of the pipe seat, thereby improving the heat dissipation effect of the transformer oil, and cooperating with the circulating water cooling structure inside the transformer oil tank body, improving the stability of the transformer oil during operation, and making the transformer coil body operate more stably;

[0007] When the cooled transformer oil enters the inside of the tube seat, the cross rod on the inner circumference of the gasket screwed in the tube seat cooperates with the sphere to buffer the refluxed transformer oil, thereby reducing the direct impact of the transformer oil reflux on the internal structural components of the transformer tank body, so that the transformer oil can be used more stably.

[0008] Specifically, a booster pump is installed between the branch pipe and the roundabout pipe.

[0009] By adopting the above technical solution, the booster pump can easily boost the pressure of the transformer oil flowing out of the round-bend pipe, so that the transformer oil can flow back into the inner side of the transformer oil tank body more smoothly.

[0010] Specifically, the inner side of the transverse pipe and the inner side of the pipe seat are both equipped with valve bodies for controlling opening and closing.

[0011] By adopting the above technical solution, the valve body can conveniently control the opening and closing of the cross pipe and the inner side of the pipe seat.

[0012] Specifically, a filter is installed between the cross pipe and the oil pump.

[0013] By adopting the above technical solution, the filter can conveniently filter the transformer oil entering the oil pump from the cross pipe, so that impurities in the transformer oil can be filtered and intercepted, and only regular cleaning is required.

[0014] Specifically, the inner side of the pool body is filled with a cooling water layer.

[0015] By adopting the above technical solution, the cooling water layer inside the pool body can be used in conjunction with the circulating cooling structure inside the transformer oil tank body, which is convenient for dissipating heat and cooling the transformer oil inside the transformer oil tank body, and can also dissipate heat and cool the transformer oil flowing through the round bend pipe.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The technical solution of this application, through the design of the pool body, horizontal pipe, pipe seat, oil pump, main body of the transformer coil, return bend pipe and branch pipe, when the power transformer is in use, the oil pump can operate and conveniently extract the transformer oil layer inside the main body of the transformer oil tank, so that the transformer oil layer can enter the horizontal pipe and conveniently flow into the return bend pipe inside the pool body. Moreover, the cooling water inside the pool body can conveniently cool the transformer oil in the return bend pipe. Subsequently, the cooled transformer oil can conveniently flow back into the inside of the pipe seat through the branch pipe and conveniently enter the inside of the main body of the transformer oil tank under the guidance of the pipe seat, thereby improving the heat dissipation effect of the transformer oil, cooperating with the circulating water cooling structure inside the main body of the transformer oil tank, improving the stability during the operation of the transformer oil, and enabling the main body of the transformer coil to operate more stably.

[0018] 2. The technical solution of this application, through the design of the gasket, cross bar and sphere, when the cooled transformer oil enters the inside of the pipe seat, the cross bar on the inner circumference of the gasket screwed and installed in the pipe seat cooperates with the sphere, facilitating the buffering of the refluxing transformer oil, thereby reducing the situation that the refluxing transformer oil directly impacts the internal structural components of the main body of the transformer oil tank, and enabling the transformer oil to be used more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present utility model will be further described below with reference to the drawings and embodiments.

[0020] Figure 1 is an isometric view of the present utility model;

[0021] Figure 2 is a cross-sectional schematic view of the connection structure between the main body of the transformer oil tank and the pool body of the present utility model;

[0022] Figure 3 is a schematic view of the connection structure between the gasket and the sphere of the present utility model;

[0023] In the figure: 1. Main body of the transformer oil tank; 2. Pool body; 3. Horizontal pipe; 4. Pipe seat; 5. Filter; 6. Oil pump; 7. Return bend pipe; 8. Cooling water layer; 9. Booster pump; 10. Branch pipe; 11. Gasket; 12. Cross bar; 13. Sphere; 14. Main body of the transformer coil; 15. Valve body; 16. Transformer oil layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific embodiments.

[0025] Please refer to Figures 1-3, an embodiment of the present utility model provides a technical solution: a forced oil circulation water-cooled power transformer, which includes a main body of the transformer oil tank 1 and a pool body 2. A horizontal pipe 3 for guiding and a pipe seat 4 are assembled on the outer wall surface of the main body of the transformer oil tank 1. One end of the horizontal pipe 3 away from the main body of the transformer oil tank 1 is assembled with an oil pump 6, and a return bend pipe 7 connected to the oil outlet end of the oil pump 6 is assembled on the inner bottom surface of the pool body 2. A branch pipe 10 for guiding is detachably installed between the end of the return bend pipe 7 away from the oil pump 6 and the pipe seat 4. A main body of the transformer coil 14 is assembled inside the main body of the transformer oil tank 1, and a transformer oil layer 16 located outside the main body of the transformer coil 14 is filled inside the main body of the transformer oil tank 1; A washer 11 for support is screwed and installed inside the pipe seat 4, and a cross bar 12 for support is assembled inside the washer 11. A sphere 13 for flow splitting is integrally formed at one end of the cross bar 12 located inside the main body of the transformer oil tank 1.

[0026] When in use, when the power transformer is in use, the oil pump 6 can operate and conveniently extract the transformer oil layer 16 inside the main body of the transformer oil tank 1, so that the transformer oil layer 16 can enter the horizontal pipe 3 and is conveniently guided into the return bend pipe 7 inside the pool body 2. And the cooling water inside the pool body 2 can conveniently cool the transformer oil in the return bend pipe 7. Subsequently, the cooled transformer oil can conveniently flow back into the inside of the pipe seat 4 through the branch pipe 10, and is conveniently guided by the pipe seat 4 and enters the inside of the main body of the transformer oil tank 1, thereby improving the heat dissipation effect of the transformer oil, cooperating with the circulating water-cooled structure inside the main body of the transformer oil tank 1, improving the stability of the transformer oil during operation, and enabling the main body of the transformer coil 14 to operate more stably;

[0027] When the cooled transformer oil enters the inside of the pipe seat 4, the cross bar 12 inside the inner circumference of the washer 11 screwed and installed in the pipe seat 4 cooperates with the sphere 13, which is convenient for buffering the flowing-back transformer oil, thereby reducing the situation that the flowing-back transformer oil directly impacts the internal structural components of the main body of the transformer oil tank 1, and enabling the transformer oil to be used more stably.

[0028] As Figure 2 shown, a booster pump 9 is assembled between the branch pipe 10 and the return bend pipe 7.

[0029] When in use, the booster pump 9 is convenient for boosting the transformer oil flowing out of the return bend pipe 7, so that the transformer oil can flow back into the inside of the main body of the transformer oil tank 1 more smoothly.

[0030] As Figure 1 and Figure 2 shown, valve bodies 15 for controlling opening and closing are assembled inside both the horizontal pipe 3 and the pipe seat 4.

[0031] When in use, the valve body 15 is convenient for controlling the opening and closing inside the horizontal pipe 3 and the pipe seat 4.

[0032] As Figure 2 shown, a filter 5 is assembled between the horizontal pipe 3 and the oil pump 6.

[0033] During use, the filter 5 facilitates the filtration of the transformer oil entering the oil pump 6 from the horizontal pipe 3, enabling the impurities in the transformer oil to be filtered and intercepted, and only requiring regular cleaning.

[0034] As Figure 2 shown, a cooling water layer 8 is filled inside the pool body 2.

[0035] During use, the cooling water layer 8 inside the pool body 2 facilitates cooperation with the built-in circulating cooling structure inside the main body 1 of the transformer oil tank, facilitating the heat dissipation and temperature reduction of the transformer oil inside the main body 1 of the transformer oil tank, and at the same time, it can also dissipate the heat of the transformer oil flowing through the return bend pipe 7.

[0036] The working principle and usage process of the present utility model: During use, first install the corresponding structural components in appropriate positions. When using the power transformer, the oil pump 6 can operate and facilitate the extraction of the transformer oil layer 16 inside the main body 1 of the transformer oil tank, enabling the transformer oil layer 16 to enter the horizontal pipe 3 and conveniently flow into the return bend pipe 7 inside the pool body 2. Moreover, the cooling water inside the pool body 2 facilitates the temperature reduction of the transformer oil in the return bend pipe 7. Subsequently, the cooled transformer oil conveniently flows back into the inside of the pipe socket 4 through the branch pipe 10 and is conveniently guided by the pipe socket 4 to enter the inside of the main body 1 of the transformer oil tank, thereby forming a circulating oil cooling structure and improving the heat dissipation effect of the transformer oil, and facilitating cooperation with the circulating water cooling structure inside the main body 1 of the transformer oil tank, facilitating the improvement of the stability of the transformer oil during operation, and enabling the main body 14 of the transformer coil to operate more stably. At the same time, when the cooled transformer oil enters the inside of the pipe socket 4, the cross bar 12 inside the inner circumference of the washer 11 screwed and installed in the pipe socket 4 cooperates with the sphere 13, facilitating the buffering of the flowing-back transformer oil, thereby reducing the situation where the flowing-back transformer oil directly impacts the internal structural components of the main body 1 of the transformer oil tank, enabling the transformer oil to be used more stably.

[0037] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope claimed by the present utility model. The scope claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A strong oil circulation water-cooled power transformer, characterized in that: The invention comprises a transformer oil tank body (1) and a tank body (2), wherein the outer wall surface of the transformer oil tank body (1) is equipped with a transverse pipe (3) and a pipe seat (4) for diversion, the end of the transverse pipe (3) away from the transformer oil tank body (1) is equipped with an oil pump (6), and the inner bottom surface of the tank body (2) is equipped with a round bend pipe (7) connected to the oil outlet end of the oil pump (6), and a branch pipe (10) for diversion is detachably installed between the end of the round bend pipe (7) away from the oil pump (6) and the pipe seat (4), the inner side of the transformer oil tank body (1) is equipped with a transformer coil body (14), and the inner side of the transformer oil tank body (1) is filled with a transformer oil layer (16) located on the outer periphery of the transformer coil body (14); A washer (11) for support is screwed onto the inner side of the pipe seat (4), and a cross rod (12) for support is mounted on the inner side of the washer (11). A sphere (13) for flow diversion is integrally constructed at one end of the cross rod (12) located on the inner side of the transformer oil tank body (1).

2. A forced oil circulation water-cooled power transformer according to claim 1, characterized in that: A booster pump (9) is installed between the branch pipe (10) and the roundabout pipe (7).

3. A forced oil circulation water-cooled power transformer according to claim 1, characterized in that: The inner side of the transverse pipe (3) and the inner side of the pipe seat (4) are both equipped with valve bodies (15) for controlling opening and closing.

4. A forced oil circulation water-cooled power transformer according to claim 1, characterized in that: A filter (5) is installed between the transverse pipe (3) and the oil pump (6).

5. The strong oil circulation water-cooled power transformer according to claim 1 is characterized in that: The inner side of the pool body (2) is filled with a cooling water layer (8).

Images