Oil tank of oil-immersed transformer

Abstract

The utility model discloses an oil-immersed transformer oil tank which comprises a transformer tank, flow guide frames are fixedly installed below the two sides of the transformer tank through fixing blocks, the top of each flow guide frame is fixedly connected with a plurality of backflow pipes through an opening, and the backflow pipes are arranged in the transformer tank. And the top end of the return pipe penetrates through the transformer box and extends into the transformer box. The utility model relates to the technical field of transformers. According to the oil-immersed transformer oil tank, a plurality of backflow pipes communicated with the transformer tank are installed on the two sides of the transformer tank through flow guide frames, a water pump is connected with the transformer tank through a liquid conveying pipe and a liquid pumping pipe, and the water pump is used in cooperation with fins; due to the arrangement of the structures, oil liquid can be pumped out through the water pump and dispersedly flows in the multiple backflow pipes, heat dissipation is conducted in advance, the backflow pipes make contact with the fins during flowing, part of heat is transmitted into air through the fins, the heat dissipation effect is effectively improved, and the current use requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an oil-immersed transformer oil tank. Background Technique

[0002] The body of an oil-immersed transformer is installed in an oil tank filled with transformer oil, and the oil tank is welded by steel plates. The oil tanks of medium and small transformers are composed of a tank shell and a tank cover. The body of the transformer is placed inside the tank shell, and the body can be lifted out for maintenance by opening the tank cover. Transformer oil is a petroleum-based liquid and has the possibility of combustion, which has disadvantages in terms of environmental protection. However, due to the excellent performance and low price of transformer oil, the vast majority of power transformers still use transformer oil as the insulation and cooling medium.

[0003] In the existing oil-immersed transformer oil tank, its interior is usually filled with oil, which ensures the heat dissipation and insulation of the transformer body. The heat dissipation of the oil also needs to be combined with the fins outside the tank body so that the heat can be dissipated into the air. However, at present, the fins are welded on the surface of the tank body by welding technology, and the heat of the oil is also separated by the tank body when being transferred through the fins. This leads to the fins being unable to quickly export the heat. And after the fins are used for a long time, a large amount of stains will adhere to the interlayer. If not cleaned, it is easy to affect the heat dissipation effect, and the interlayer gap of the fins is small and cannot be disassembled itself, resulting in the staff being unable to maintain it conveniently;

[0004] Therefore, an oil-immersed transformer oil tank that can be conveniently cleaned and improve the heat dissipation effect is designed to solve such defects now. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides an oil-immersed transformer oil tank, which solves the problems of poor heat dissipation effect and inconvenient cleaning of the existing transformer tank body.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: an oil-immersed transformer oil tank, including a transformer tank, both sides of the lower part of the transformer tank are fixedly installed with flow guiding frames through fixing blocks, the top of the flow guiding frame is fixedly connected with a return pipe through an opening, and a plurality of return pipes are provided. The top end of the return pipe penetrates through the transformer tank and extends into the interior of the transformer tank. A water pump is fixedly installed on the surface of the transformer tank through a fixing block, and a liquid suction pipe is communicated between the water inlet of the water pump and the transformer tank. Both water outlets of the water pump are fixedly connected with liquid delivery pipes, and the two liquid delivery pipes are respectively communicated with the flow guiding frames on the same side.

[0007] Preferably, concave seats are fixedly connected to both sides of the transformer tank and located between adjacent diversion frames, and a plurality of concave seats are provided. Fins are installed between the inner sides of the concave seats on the same plane, and rubber pads for cooperating with the fins are fixedly connected to both the top and the bottom of the inner cavity of the concave seat.

[0008] Preferably, a first socket penetrating through to the bottom is opened on one side of the top of the concave seat away from the transformer tank, and a second socket for cooperating with the first socket is opened on the top of the fin.

[0009] Preferably, a guiding slide opening is opened on one side of the top of the concave seat close to the transformer tank, a vertical guiding plate is slidably installed inside the guiding slide opening, and an L-shaped sealing plate for cooperating with the first socket is fixedly connected to one side of the vertical guiding plate.

[0010] Preferably, a moving groove is opened on the upper part of one side of the vertical guiding plate, a limiting plate for cooperating with the moving groove is fixedly connected to one side of the transformer tank, and a spring is fixedly connected between the top of the inner cavity of the limiting plate and the moving groove.

[0011] Preferably, a sealing cover for cooperating with the vertical guiding plate is installed on the top of the transformer tank. Advantageous Effects

[0012] The utility model provides an oil-immersed transformer oil tank. Compared with the prior art, the following advantageous effects are achieved:

[0013] (1) In this oil-immersed transformer oil tank, a plurality of return pipes communicated with the transformer tank are installed on both sides of the transformer tank by using diversion frames, and a water pump is connected to the transformer tank through an infusion pipe and a liquid extraction pipe. When used in combination with the fins, these structures can use the water pump to extract the oil and disperse it for flow inside the plurality of return pipes, performing pre-cooling, and while flowing, the return pipes come into contact with the fins, allowing the fins to transfer part of the heat to the air, effectively improving the heat dissipation effect and meeting the current usage requirements.

[0014] (2) In this oil-immersed transformer oil tank, concave seats are installed on both sides of the transformer tank, rubber pads are installed inside the concave seats, and when used in combination with the vertical guiding plate and the L-shaped sealing plate, these structures can, when disassembling the sealing cover, lift the vertical guiding plate so that the L-shaped sealing plate is inserted into the inner sides of the first socket and the second socket to fix and disassemble the fins, facilitating the staff to clean the fins, ensuring the heat dissipation efficiency, and the setting of the rubber pads can effectively increase the stability of the fins and facilitate installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the transformer box of the present utility model;

[0017] Figure 3 For the present utility model Figure 2 The partial enlarged view of part A in it;

[0018] Figure 4 It is a schematic diagram of the fin and second socket structure of the present utility model;

[0019] Figure 5 It is a schematic diagram of the moving groove, limiting plate and spring structure of the present utility model.

[0020] In the figure: 1. Transformer box; 2. Flow guide frame; 3. Return pipe; 4. Water pump; 5. Infusion pipe; 6. Concave seat; 7. Rubber pad; 8. Fin; 9. First socket; 10. Second socket; 11. Guide sliding opening; 12. Vertical guide plate; 13. L-shaped sealing plate; 14. Moving groove; 15. Limiting plate; 16. Spring; 17. Sealing cover; 18. Liquid extraction pipe. Specific implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , the present utility model provides a technical solution: an oil-immersed transformer oil tank, including a transformer box 1. Concave seats 6 are fixedly connected between the two sides of the transformer box 1 and located between adjacent two flow guide frames 2, and a plurality of concave seats 6 are provided. Fins 8 are installed between the inner sides of the concave seats 6 on the same plane. Rubber pads 7 that cooperate with the fins 8 are fixedly connected to both the top and the bottom of the inner cavity of the concave seat 6. A first socket 9 that penetrates to the bottom is opened on one side of the top of the concave seat 6 away from the transformer box 1. A second socket 10 that cooperates with the first socket 9 is opened on the top of the fin 8. A guide sliding opening 11 is opened on one side of the top of the concave seat 6 close to the transformer box 1. A vertical guide plate 12 is slidably installed inside the guide sliding opening 11. An L-shaped sealing plate 13 that cooperates with the first socket 9 is fixedly connected to one side of the vertical guide plate 12. A moving groove 14 is opened on the upper part of one side of the vertical guide plate 12. A limiting plate 15 that cooperates with the moving groove 14 is fixedly connected to one side of the transformer box 1. A spring 16 is fixedly connected between the limiting plate 15 and the top of the inner cavity of the moving groove 14.

[0023] In use, first insert a number of infusion tubes 5 into the inside of the concave seat 6 in sequence. At this time, the second socket 10 coincides with the first socket 9, and the two rubber pads 7 clamp the fin 8 stably. Subsequently, use the bolt assembly to install the sealing cover 17 on the top of the transformer tank 1. When the installation of the sealing cover 17 is completed, the vertical guide plates 12 on both sides will be pressed. After the vertical guide plates 12 are pressed downward, the springs 16 will be compressed. At the same time, a number of L-shaped sealing plates 13 are respectively inserted into the inside of the second socket 10 and the first socket 9. At this time, the vertical guide plates 12 are positioned and the number of second sockets 10 are also fixed.

[0024] Furthermore, flow guiding frames 2 are fixedly installed on both lower sides of the transformer tank 1 through fixing blocks. The top of the flow guiding frame 2 is fixedly connected with a return pipe 3 through an opening. The return pipe 3 is made of aluminum material and has good heat conductivity. And a number of return pipes 3 are provided. The top ends of the return pipes 3 penetrate through the transformer tank 1 and extend into the inside of the transformer tank 1. A water pump 4 is fixedly installed on the surface of the transformer tank 1 through a fixing block. And a liquid suction pipe 18 is communicated between the water inlet of the water pump 4 and the transformer tank 1. Both water outlets of the water pump 4 are fixedly connected with infusion tubes 5. The two infusion tubes 5 are respectively communicated with the flow guiding frames 2 on the same side. A sealing cover 17 that is used in cooperation with the vertical guide plates 12 is installed on the top of the transformer tank 1. The sealing cover 17 is first assembled with the transformer body during installation.

[0025] When the oil liquid inside the transformer tank 1 is cooled, start the water pump 4 and use the infusion tubes 5 to pump the oil liquid out from the bottom and inject it into the inside of the flow guiding frame 2. Then the oil liquid flows dispersedly through a number of return pipes 3 respectively. During the flowing process, due to the contact between the fin 8 and the return pipe 3, the fin 8 disperses the heat on the surface of the return pipe 3 to improve the heat dissipation effect. When it is necessary to clean the fin 8, disassemble the sealing cover 17, let the vertical guide plates 12 rise under the elastic force of the springs 16, and make a number of L-shaped sealing plates 13 be pulled out from the inside of the sliding guide openings 11. At this time, pull out the fin 8 from the inside of the concave seat 6 for cleaning.

[0026] At the same time, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

Claims

1. An oil-immersed transformer tank, comprising a transformer tank (1), characterized in that: A flow guide frame (2) is fixedly mounted below both sides of the transformer box (1) via a fixing block, a return pipe (3) is fixedly connected to the top of the flow guide frame (2) via an opening, and a plurality of return pipes (3) are provided, the top of the return pipe (3) passes through the transformer box (1) and extends into the interior of the transformer box (1), a water pump (4) is fixedly mounted on the surface of the transformer box (1) via a fixing block, and a liquid extraction pipe (18) is connected between the water inlet of the water pump (4) and the transformer box (1), and both water outlets of the water pump (4) are fixedly connected to a liquid delivery pipe (5), and the two liquid delivery pipes (5) are respectively connected to the flow guide frame (2) on the same side.

2. The oil-immersed transformer tank according to claim 1, characterized in that: Concave seats (6) are fixedly connected on both sides of the transformer box (1) and between two adjacent flow guide frames (2), and a plurality of concave seats (6) are provided. Fins (8) are installed between the inner sides of the concave seats (6) on the same plane, and rubber pads (7) used in conjunction with the fins (8) are fixedly connected to the top and bottom of the inner cavity of the concave seats (6).

3. The oil-immersed transformer tank according to claim 2, characterized in that: A first socket (9) extending through the bottom is provided on a side of the top of the concave seat (6) away from the transformer box (1), and a second socket (10) for use in conjunction with the first socket (9) is provided on the top of the fin (8).

4. The oil-immersed transformer tank according to claim 3, characterized in that: A guide opening (11) is provided on the top of the concave seat (6) on one side close to the transformer box (1), a vertical guide plate (12) is slidably mounted on the inner side of the guide opening (11), and an L-shaped sealing plate (13) for use with the first socket (9) is fixedly connected to one side of the vertical guide plate (12).

5. The oil-immersed transformer tank according to claim 4, characterized in that: A movable groove (14) is provided at the upper portion of one side of the vertical guide plate (12); a limit plate (15) for use with the movable groove (14) is fixedly connected to one side of the transformer box (1); and a spring (16) is fixedly connected between the limit plate (15) and the top of the inner cavity of the movable groove (14).

6. The oil-immersed transformer tank according to claim 5, characterized in that: A sealing cover (17) for use with the vertical guide plate (12) is installed on the top of the transformer box (1).

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