Outdoor oil-immersed transformer

Abstract

The utility model discloses an outdoor oil-immersed transformer which comprises a transformer body, the surface of the transformer body is connected with a connecting pipe in a penetrating mode, the connecting pipe is located at the oil liquid low position in the transformer body, the outlet end of the connecting pipe is connected with a retractable liquid storage bag in a penetrating mode, and a valve body is arranged in the connecting pipe. A liquid storage bag is arranged in the transformer body, a connecting pipe is arranged in the liquid storage bag, a quantifying mechanism is arranged outside the transformer body, the quantifying mechanism can limit the liquid storage amount in the liquid storage bag, the quantifying mechanism comprises a telescopic combined box body, and the connecting pipe penetrates through the combined box body. The oil liquid in the transformer body can be introduced into the liquid storage bag through the connecting pipe until the structure in the transformer body is exposed, the oil liquid can be quantitatively discharged according to the position of the to-be-maintained structure in the transformer body by arranging the quantifying mechanism, use is convenient, and oil liquid loss during maintenance can be reduced.

Description

Technical Field

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

[0002] Oil-immersed transformers use oil as the main insulation means of the transformer and rely on oil as a cooling medium, such as oil-immersed self-cooling, oil-immersed air cooling, oil-immersed water cooling and forced oil circulation.

[0003] At present, when repairing an oil-immersed transformer, maintenance personnel need to drain the oil into a temporary container first to expose the core and other structures of the transformer before they can perform inspection and maintenance. After the maintenance is completed, the oil is poured into the transformer. The above process is relatively cumbersome, and losses are likely to occur during the draining and filling process. Therefore, an outdoor oil-immersed transformer is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an outdoor oil-immersed transformer.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An outdoor oil-immersed transformer comprises a transformer body, a connecting pipe is connected through the surface of the transformer body, and the connecting pipe is located at the low level of oil in the transformer body, an outlet end of the connecting pipe is connected through a shrinkable liquid storage bag, and a valve body is arranged inside the connecting pipe, and a quantitative mechanism is arranged outside the transformer body, and the quantitative mechanism can limit the liquid storage amount in the liquid storage bag.

[0007] Preferably, the quantitative mechanism includes a retractable combined box body, the connecting tube passes through the combined box body, and the liquid storage bag is located inside the combined box body, a push plate is provided inside the combined box body, a push rod is fixedly connected to the surface of the push plate, and a mounting opening adapted to the push rod is opened on the surface of the combined box body, the push rod passes through the mounting opening, and a limit piece capable of fixing the position of the push rod is provided on the surface of the combined box body.

[0008] Preferably, the limiting member comprises a slide seat fixedly mounted on the combined box body, a limiting rod is inserted on the surface of the slide seat, and the limiting rod is perpendicular to the push rod, and a plurality of limiting holes are opened on the surface of the push rod, and the limiting holes are distributed at intervals and are all adapted to the limiting rod.

[0009] Preferably, the combined box body includes an outer box body and an inner box body, the sides opposite to the inner box body are both set to be openings, and the inner box body is slidably installed inside the outer box body, and a fixing mechanism is provided on the surface of the outer box body to fix the relative positions of the outer box body and the inner box body.

[0010] Preferably, a groove is provided on the surface of the inner box body, and a slider is provided on a side of the outer box body close to the opening, and the slider is slidably matched with the groove.

[0011] Preferably, the fixing mechanism includes a slide groove opened on the surface of the outer box body, the slider is movably installed inside the slide groove, the outer box body surface is evenly provided with threaded holes along the direction of the slide groove, and the slider surface is inserted with a first fixing bolt, and the first fixing bolt is inserted inside the corresponding threaded hole.

[0012] Preferably, both sides of the inner box are fixedly connected with fixing feet, and the surface of the fixing feet is installed on the surface of the transformer body by arranging a plurality of groups of second fixing bolts.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] When the utility model is used to repair a transformer body, it is only necessary to open the switch of the valve body, and the oil in the transformer body can be passed into the liquid storage bag through the connecting pipe until the structure inside the transformer body is exposed, and by setting a quantitative mechanism, the oil can be quantitatively discharged according to the position of the structure to be repaired inside the transformer body. The utility model is easy to use and can reduce the loss of oil during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an outdoor oil-immersed transformer proposed by the utility model;

[0016] Figure 2 A cross-sectional view of the local structure of an outdoor oil-immersed transformer proposed by the utility model;

[0017] Figure 3 An outdoor oil-immersed transformer proposed by the utility model Figure 2 The enlarged view of point A in the middle;

[0018] Figure 4 An outdoor oil-immersed transformer proposed by the utility model Figure 2 Enlarged view of point B in the middle.

[0019] In the figure: 1. Transformer body; 2. Outer box; 3. Inner box; 4. Liquid storage bag; 5. Connecting pipe; 6. Valve body; 7. Fixing foot; 8. First fixing bolt; 9. Push plate; 10. Slide groove; 11. Sliding block; 12. Second fixing bolt; 13. Threaded hole; 14. Push rod; 15. Limiting hole; 16. Limiting rod; 17. Sliding seat; 18. Mounting port; 19. Groove. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0021] Reference Figure 1-4 An outdoor oil-immersed transformer includes a transformer body 1, a connecting pipe 5 is connected through the surface of the transformer body 1, and the connecting pipe 5 is located at the low level of oil in the transformer body 1, an outlet end of the connecting pipe 5 is connected through a shrinkable liquid storage bag 4, and a valve body 6 is arranged inside the connecting pipe 5, and a quantitative mechanism is arranged outside the transformer body 1, and the quantitative mechanism can limit the liquid storage amount in the liquid storage bag 4.

[0022] In this embodiment, the liquid storage bag 4 is supported by a retractable rubber material. When the internal part of the transformer body 1 needs to be repaired, it is only necessary to open the switch of the valve body 6, and the oil in the transformer body 1 can be passed into the liquid storage bag 4 through the connecting pipe 5 until the internal structure of the transformer body 1 is exposed, and by setting a quantitative mechanism, the oil can be quantitatively discharged according to the position of the structure to be repaired inside the transformer body 1.

[0023] Furthermore, the quantitative mechanism includes a retractable combined box body, the connecting tube 5 passes through the combined box body, and the liquid storage bag 4 is located inside the combined box body, a push plate 9 is provided inside the combined box body, a push rod 14 is fixedly connected to the surface of the push plate 9, and a mounting port 18 adapted to the push rod 14 is opened on the surface of the combined box body, the push rod 14 passes through the mounting port 18, and a limiter capable of fixing the position of the push rod 14 is provided on the surface of the combined box body.

[0024] Furthermore, the limiting member includes a slide 17 fixedly mounted on the combined box body, a limiting rod 16 is inserted on the surface of the slide 17, and the limiting rod 16 is perpendicular to the push rod 14. A plurality of groups of limiting holes 15 are opened on the surface of the push rod 14, and the limiting holes 15 are distributed at intervals and are all adapted to the limiting rod 16.

[0025] Furthermore, the combined box body includes an outer box body 2 and an inner box body 3, the opposite sides of the outer box body 2 and the inner box body 3 are both set to be openings, and the inner box body 3 is slidably installed inside the outer box body 2, and a fixing mechanism is provided on the surface of the outer box body 2 to fix the relative positions of the outer box body 2 and the inner box body 3.

[0026] Furthermore, a groove 19 is provided on the surface of the inner box body 3 , and a slider 11 is provided on a side of the outer box body 2 close to the opening, and the slider 11 is slidably matched with the groove 19 .

[0027] Furthermore, the fixing mechanism includes a slide groove 10 opened on the surface of the outer box body 2, and a slider 11 is movably installed inside the slide groove 10. Threaded holes 13 are evenly opened on the surface of the outer box body 2 along the direction of the slide groove 10, and a first fixing bolt 8 is inserted on the surface of the slider 11, and the first fixing bolt 8 is inserted inside the corresponding threaded hole 13.

[0028] In this embodiment, the outer box body 2 and the inner box body 3 are telescopic structures, which can expand the capacity between the entire boxes, and by setting a slider 11 to cooperate with the groove 19, the outer box body 2 and the inner box body 3 can slide relative to each other, and by setting the slide groove 10, the first fixing bolt 8 and the threaded hole 13 to cooperate, the position of the slider 11 inside the slide groove 10 can be changed, thereby limiting the maximum capacity of the outer box body 2 and the inner box body 3.

[0029] By setting the push rod 14 to cooperate with the push plate 9, the push rod 14 is moved to drive the push plate 9 to move, so that the push plate 9 squeezes the liquid storage bag 4. After the maintenance is completed, the oil is refilled into the transformer body 1. In addition, by setting the limit rod 16 to cooperate with the limit hole 15, the position of the push rod 14 and the push plate 9 can be fixed, and the capacity of the liquid storage bag 4 can also be limited.

[0030] Furthermore, both sides of the inner box body 3 are fixedly connected with fixing feet 7, and the surfaces of the fixing feet 7 are installed on the surface of the transformer body 1 by providing a plurality of groups of second fixing bolts 12.

[0031] In this embodiment, by providing the fixing feet 7 and the second fixing bolts 12 , the inner box 3 and the outer box 2 and other structures can be installed on the surface of the transformer body 1 .

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An outdoor oil-immersed transformer, comprising a transformer body (1), characterized in that: The surface of the transformer body (1) is connected through a connecting pipe (5), and the connecting pipe (5) is located at a low level of oil in the transformer body (1). The outlet end of the connecting pipe (5) is connected through a contractible liquid storage bag (4), and a valve body (6) is arranged inside the connecting pipe (5). A quantitative mechanism is arranged outside the transformer body (1), and the quantitative mechanism can limit the amount of liquid stored in the liquid storage bag (4).

2. An outdoor oil-immersed transformer according to claim 1, characterized in that: The quantitative mechanism comprises a telescopic combined box, the connecting pipe (5) passes through the combined box, and the liquid storage bag (4) is located inside the combined box, a push plate (9) is arranged inside the combined box, a push rod (14) is fixedly connected to the surface of the push plate (9), and a mounting opening (18) adapted to the push rod (14) is opened on the surface of the combined box, the push rod (14) passes through the mounting opening (18), and a limiter capable of fixing the position of the push rod (14) is arranged on the surface of the combined box.

3. An outdoor oil-immersed transformer according to claim 2, characterized in that: The limiting member comprises a sliding seat (17) fixedly mounted on the combined box body, a limiting rod (16) is inserted on the surface of the sliding seat (17), and the limiting rod (16) is perpendicular to the push rod (14), and a plurality of groups of limiting holes (15) are opened on the surface of the push rod (14), and the limiting holes (15) are distributed at intervals and are all adapted to the limiting rod (16).

4. An outdoor oil-immersed transformer according to claim 3, characterized in that: The combined box body comprises an outer box body (2) and an inner box body (3); the sides of the outer box body (2) and the inner box body (3) opposite to each other are both arranged to be open, and the inner box body (3) is slidably mounted inside the outer box body (2); and a fixing mechanism is arranged on the surface of the outer box body (2) to fix the relative position of the outer box body (2) and the inner box body (3).

5. An outdoor oil-immersed transformer according to claim 4, characterized in that: A groove (19) is provided on the surface of the inner box body (3), and a slider (11) is provided on a side of the outer box body (2) close to the opening, and the slider (11) is slidably matched with the groove (19).

6. An outdoor oil-immersed transformer according to claim 5, characterized in that: The fixing mechanism comprises a slide groove (10) provided on the surface of the outer box body (2), the slider (11) is movably installed inside the slide groove (10), the surface of the outer box body (2) is evenly provided with threaded holes (13) along the direction of the slide groove (10), and the surface of the slider (11) is inserted with a first fixing bolt (8), and the first fixing bolt (8) is inserted inside the corresponding threaded hole (13).

7. An outdoor oil-immersed transformer according to claim 6, characterized in that: Both sides of the inner box (3) are fixedly connected with fixing feet (7), and the surface of the fixing feet (7) is mounted on the surface of the transformer body (1) by arranging a plurality of groups of second fixing bolts (12).

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