Anti-explosion oil-immersed transformer structure

Abstract

The utility model discloses an anti-explosion oil-immersed transformer structure which comprises an anti-explosion oil-immersed transformer body, an oil storage barrel is fixedly connected to the top of the anti-explosion oil-immersed transformer body, and a pumping mechanism is arranged between the anti-explosion oil-immersed transformer body and the oil storage barrel. The top of the anti-explosion oil-immersed transformer body is fixedly connected with an impurity removal box, the inner wall of the impurity removal box is fixedly connected with a filter screen, the bottom of the anti-explosion oil-immersed transformer body is fixedly connected with two bottom plates, and each bottom plate is internally provided with a sliding plate which is in sliding connection with the bottom plate; the bottom of each sliding plate is fixedly connected with a lifting plate, and a buffering mechanism is arranged in each bottom plate. According to the utility model, the buffer spring, the rubber deformation block and the damper are matched, so that the transformer can be subjected to buffer protection; and through cooperation of the impurity removal box and the filter screen, impurities in the oil way can be filtered out, and oil purification treatment is achieved.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to an explosion-proof oil-immersed transformer structure. Background Technology

[0002] An oil-immersed transformer is a type of transformer that uses petroleum-based liquids as a sealing and heat-conducting medium. Due to the protective effect of the transformer oil, the heat inside the oil-immersed transformer is not easily accumulated, which facilitates heat dissipation. At the same time, its internal coils and other working structures are not easily oxidized due to high temperatures during operation.

[0003] As a core piece of equipment in power systems, the explosion-proof performance and long-term operational stability of oil-immersed transformers are of paramount importance. Traditional explosion-proof oil-immersed transformers are mostly installed in a fixed manner. However, under high-current conditions, the mechanical vibrations caused by the magnetostriction of the iron core and the electromagnetic force of the windings are transmitted to the tank through rigid supports. Existing technologies typically use a single rubber pad, which has limited absorption capacity for high-frequency vibrations and is prone to material fatigue after long-term operation, leading to a decrease in vibration damping efficiency and accelerated wear of internal insulation components. Furthermore, traditional oil circuit systems rely on periodic manual oil changes, which cannot achieve real-time oil purification during operation. Impurities such as carbides and metal particles generated by aging in the oil can accelerate the blockage of heat dissipation pipes, reduce insulation strength, and even cause partial discharge risks. To solve the above problems, this application proposes an explosion-proof oil-immersed transformer structure. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an explosion-proof oil-immersed transformer structure. By combining a buffer spring, a rubber deformation block, and a damper, the transformer can be buffered and protected. By combining a cleanroom and a filter screen, impurities in the oil circuit can be filtered, thus purifying the oil.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An explosion-proof oil-immersed transformer structure includes an explosion-proof oil-immersed transformer body. An oil storage tank is fixedly connected to the top of the transformer body. A pumping mechanism is provided between the transformer body and the oil storage tank. A cleaning box is fixedly connected to the top of the transformer body, and a filter screen is fixedly connected to the inner wall of the cleaning box. Two base plates are fixedly connected to the bottom of the transformer body. Each base plate has a sliding plate slidably connected to it. A lifting plate is fixedly connected to the bottom of each sliding plate. The two lifting plates pass through and slidably connect to their respective base plates. A C-shaped plate is fixedly connected to the bottom of each lifting plate. A buffer mechanism is provided within each base plate.

[0007] Preferably, the buffer mechanism includes a damper fixedly connected to the top of the sliding plate, the damper fixedly connected to the inner top of the base plate, two buffer springs fixedly connected between the sliding plate and the inner top of the base plate, and two rubber deformation blocks fixedly connected between the sliding plate and the inner top of the base plate.

[0008] Preferably, the pumping mechanism includes a first connecting pipe fixedly connected to the side wall of the oil storage tank, a high-pressure oil pump fixedly connected to the top of the explosion-proof oil-immersed transformer body, the first connecting pipe being fixedly connected to the high-pressure oil pump, the high-pressure oil pump being fixedly connected to a second connecting pipe, and the second connecting pipe being fixedly connected to the explosion-proof oil-immersed transformer body.

[0009] Preferably, a third connecting pipe is fixedly connected to the side wall of the explosion-proof oil-immersed transformer body, and the third connecting pipe is fixedly connected to the impurity removal box.

[0010] Preferably, a fourth connecting pipe is fixedly connected to the side wall of the impurity removal box, and the fourth connecting pipe is fixedly connected to the oil storage tank.

[0011] Preferably, the base plate has a cavity, and the sliding plate is located in the cavity and slidably connected to its cavity wall.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. When the explosion-proof oil-immersed transformer body is working, it will generate vibration, causing the explosion-proof oil-immersed transformer body to move up and down. During this process, the expansion and contraction of the buffer spring can buffer the explosion-proof oil-immersed transformer body. The deformation of the rubber deformation block can further reduce the vibration of the explosion-proof oil-immersed transformer body. The damper can absorb the vibration, so that the buffer spring eventually tends to stabilize and the explosion-proof oil-immersed transformer body works smoothly.

[0014] 2. Impurities in the oil can be filtered through the filter screen in the impurity removal box. Finally, the purified oil flows back to the oil storage tank through the fourth connecting pipe, ensuring the cleanliness of the oil and extending the service life of the explosion-proof oil-immersed transformer body.

[0015] In summary, by combining buffer springs, rubber deformation blocks, and dampers, this transformer can be buffered and protected; by combining impurity removal boxes and filters, impurities in the oil circuit can be filtered, thus purifying the oil. Attached Figure Description

[0016] Figure 1 This is a first structural schematic diagram of an explosion-proof oil-immersed transformer structure proposed in this utility model;

[0017] Figure 2This is a second structural schematic diagram of an explosion-proof oil-immersed transformer structure proposed in this utility model;

[0018] Figure 3 This is a partial structural diagram of an explosion-proof oil-immersed transformer structure proposed in this utility model.

[0019] In the diagram: 1. Explosion-proof oil-immersed transformer body; 2. Oil storage tank; 3. First connecting pipe; 4. High-pressure oil pump; 5. Second connecting pipe; 6. Third connecting pipe; 7. Impurity removal box; 8. Filter screen; 9. Fourth connecting pipe; 10. Base plate; 11. Sliding plate; 12. Buffer spring; 13. Rubber deformation block; 14. Damper; 15. Lifting plate; 16. C-shaped plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-3 An explosion-proof oil-immersed transformer structure includes an explosion-proof oil-immersed transformer body 1, an oil storage tank 2 fixedly connected to the top of the explosion-proof oil-immersed transformer body 1, the oil storage tank 2 containing oil, and a pumping mechanism between the explosion-proof oil-immersed transformer body 1 and the oil storage tank 2. The pumping mechanism includes a first connecting pipe 3 fixedly connected to the side wall of the oil storage tank 2, a high-pressure oil pump 4 fixedly connected to the top of the explosion-proof oil-immersed transformer body 1, the first connecting pipe 3 being fixedly connected to the high-pressure oil pump 4, and the high-pressure oil pump 4 being fixedly connected to a second connecting pipe 5, which is fixedly connected to the explosion-proof oil-immersed transformer body 1. The high-pressure oil pump 4 transports the oil from the oil storage tank 2 into the explosion-proof oil-immersed transformer body 1 for heat dissipation. This technology is prior art and will not be described in detail here.

[0022] The explosion-proof oil-immersed transformer body 1 has a third connecting pipe 6 fixedly connected to its side wall. The third connecting pipe 6 is fixedly connected to the impurity removal box 7. The impurity removal box 7 has a fourth connecting pipe 9 fixedly connected to its side wall. The fourth connecting pipe 9 is fixedly connected to the oil storage tank 2. The top of the explosion-proof oil-immersed transformer body 1 is fixedly connected to the impurity removal box 7. The inner wall of the impurity removal box 7 is fixedly connected to the filter screen 8. The filter screen 8 can filter impurities in the oil to ensure the cleanliness of the oil. A rotating door can be installed at the rear end of the impurity removal box 7. The impurities can be cleaned by opening the rotating door periodically, thus avoiding the clogging of the filter screen 8.

[0023] The bottom of the explosion-proof oil-immersed transformer body 1 is fixedly connected to two base plates 10. Each base plate 10 has a sliding plate 11 slidably connected to it. The base plate 10 has a cavity, and the sliding plate 11 is located in the cavity and slidably connected to its cavity wall. The bottom of each sliding plate 11 is fixedly connected to a lifting plate 15. The two lifting plates 15 pass through the corresponding base plate 10 and are slidably connected to it. The bottom of each lifting plate 15 is fixedly connected to a C-shaped plate 16. Each base plate 10 has a buffer mechanism. The buffer mechanism includes a damper 14 fixedly connected to the top of the sliding plate 11, which can absorb the deformation force of the buffer spring 12 and make it ultimately stable. The damper 14 is fixedly connected to the inner top of the base plate 10. Two buffer springs 12 are fixedly connected between the sliding plate 11 and the inner top of the base plate 10, which can buffer the vibration of the explosion-proof oil-immersed transformer body 1 once. Two rubber deformation blocks 13 are fixedly connected between the sliding plate 11 and the inner top of the base plate 10, which can buffer the explosion-proof oil-immersed transformer body 1 again.

[0024] In this invention, when the explosion-proof oil-immersed transformer is installed, vibrations occur during operation of the transformer body 1, causing it to move up and down. The transformer body 1 drives the two base plates 10 to move up and down. During this process, the buffer spring 12 deforms and expands to buffer the transformer body 1. The rubber deformation block 13 further reduces vibrations, and the damper 14 absorbs the vibrations, ultimately stabilizing the buffer spring 12 and ensuring smooth operation of the transformer body 1. The high-pressure oil pump 4 injects oil from the oil storage tank 2 into the transformer body 1 through the first connecting pipe 3 and the high-pressure oil pump 4. Excess oil is injected into the impurity removal box 7 through the third connecting pipe 6. Impurities in the oil are filtered through the filter screen 8 in the impurity removal box 7. Finally, the purified oil flows back to the oil storage tank 2 through the fourth connecting pipe 9, ensuring oil cleanliness and extending the service life of the explosion-proof oil-immersed transformer body 1.

[0025] This invention addresses the problem of conventional explosion-proof oil-immersed transformers, which often use fixed installations. Under high-current conditions, the mechanical vibrations caused by the magnetostriction of the core and the electromagnetic force of the windings are transmitted to the transformer housing through rigid supports. Existing technologies typically use a single rubber pad, which has limited absorption capacity for high-frequency vibrations and is prone to material fatigue after long-term operation, leading to decreased vibration damping efficiency and accelerated wear of internal insulation components. Furthermore, traditional oil systems rely on periodic manual oil changes, failing to achieve real-time oil purification during operation. Impurities such as carbides and metal particles generated by aging in the oil can accelerate blockage of heat dissipation pipes, reduce insulation strength, and even pose a risk of partial discharge.

Claims

1. An explosion-proof oil-immersed transformer structure comprising an explosion-proof oil-immersed transformer body (1), characterized in that, The top of the explosion-proof oil-immersed transformer body (1) is fixedly connected with an oil storage tank (2), a pumping mechanism is arranged between the explosion-proof oil-immersed transformer body (1) and the oil storage tank (2), the top of the explosion-proof oil-immersed transformer body (1) is fixedly connected with a impurity removal box (7), the inner wall of the impurity removal box (7) is fixedly connected with a filter screen (8), the bottom of the explosion-proof oil-immersed transformer body (1) is fixedly connected with two bottom plates (10), each bottom plate (10) is provided with a sliding plate (11) in sliding connection therewith, the bottom of each sliding plate (11) is fixedly connected with a lifting plate (15), the two lifting plates (15) respectively penetrate through the corresponding bottom plate (10) and are in sliding connection therewith, the bottom of each lifting plate (15) is fixedly connected with a C-shaped plate (16), and each bottom plate (10) is provided with a buffer mechanism.

2. The structure of the explosion-proof oil-immersed transformer according to claim 1, characterized in that, The buffer mechanism comprises a damper (14) fixedly connected with the top of the sliding plate (11), the damper (14) is fixedly connected with the inner top of the bottom plate (10), and two buffer springs (12) are fixedly connected between the sliding plate (11) and the inner top of the bottom plate (10).

3. The structure of the oil-immersed transformer according to claim 1, wherein The pumping mechanism comprises a first connecting pipe (3) fixedly communicated with the side wall of the oil storage tank (2), the top of the explosion-proof oil-immersed transformer body (1) is fixedly connected with a high-pressure oil pump (4), the first connecting pipe (3) is fixedly communicated with the high-pressure oil pump (4), the high-pressure oil pump (4) is fixedly communicated with a second connecting pipe (5), and the second connecting pipe (5) is fixedly communicated with the explosion-proof oil-immersed transformer body (1).

4. The structure of the explosion-proof oil-immersed transformer according to claim 1, characterized in that, The side wall of the explosion-proof oil-immersed transformer body (1) is fixedly communicated with a third connecting pipe (6), and the third connecting pipe (6) is fixedly communicated with the impurity removal box (7).

5. The structure of the oil-immersed transformer according to claim 1, wherein The side wall of the impurity removal box (7) is fixedly communicated with a fourth connecting pipe (9), and the fourth connecting pipe (9) is fixedly communicated with the oil storage tank (2).

6. The structure of the oil-immersed transformer according to claim 2, wherein The bottom plate (10) is provided with a cavity, and the sliding plate (11) is located in the cavity and is in sliding connection with the cavity wall.

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