Large power transformer plugging device

Abstract

The invention relates to the technical field of leaking stoppage devices, and discloses a large power transformer leaking stoppage device which comprises a first clamping plate, a second clamping plate and a side frame, the second clamping plate is arranged on the lower portion of the first clamping plate, and the side frame is arranged outside the second clamping plate and the first clamping plate; the limiting grooves are formed in one sides of the interiors of the first clamping plate and the second clamping plate respectively; the convex frame is arranged in the limiting groove; the sealing gasket is arranged inside the limiting groove and outside the convex frame; and the top blocks are slidably installed at the upper end and the lower end of the interior of the side frame correspondingly, adjusting pieces are rotatably installed outside the top blocks, and the adjusting pieces are connected with the side frame through threads in a matched mode. The adjusting piece in the side frame drives the ejector block to extrude the clamping plate, precise clamping of an oil leakage part is achieved, stress is uniform, and the problems that a traditional clamp is low in adjusting precision and poor in sealing effect are solved; the limiting groove restrains the convex frame and the sealing gasket, the sealing gasket is prevented from deviating, and the sealing stability is improved.

Description

Technical Field

[0001] This invention relates to the field of leak sealing devices, specifically a leak sealing device for a large power transformer. Background Technology

[0002] In the operation of power systems, large power transformers, as critical equipment, are prone to oil leakage in their tanks, flange interfaces, and other parts due to long-term exposure to vibration, temperature changes, and material aging. If oil leakage is not addressed promptly, it can not only cause the transformer oil level to drop, affecting insulation and cooling performance, but may also lead to equipment failure or even safety accidents.

[0003] In existing technologies, there are various methods for dealing with this type of oil leakage problem. Traditional methods include directly sealing with sealant, but the sealant is prone to cracking due to equipment vibration after curing, leading to leakage failure. Other methods use metal clamps with sealing gaskets for tightening; however, ordinary clamps have low adjustment precision, making it difficult to achieve uniform force according to the specific dimensions of the leaking area, and the sealing gasket lacks positioning limits, making it prone to displacement during tightening, affecting the sealing effect. Furthermore, some leakage sealing devices have complex structures, requiring transformer shutdown and disassembly for installation, which not only increases maintenance costs but also affects the normal power supply of the power system. Therefore, a large-scale power transformer leakage sealing device is proposed. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a large power transformer leak sealing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a large power transformer leak-sealing device, comprising:

[0006] The system comprises a first clamping plate, a second clamping plate, and a side frame. The second clamping plate is located below the first clamping plate, and the side frame is located outside the second clamping plate and the first clamping plate. The adjusting component inside the side frame drives the top block to press against the first and second clamping plates, thereby achieving precise clamping of the oil leakage part. This provides the advantage of uniform force distribution and solves the problems of low adjustment accuracy and poor sealing effect of traditional clamps.

[0007] The limiting grooves are respectively opened on the inner side of the first clamping plate and the second clamping plate; the limiting grooves constrain the convex frame and the sealing gasket, prevent the sealing gasket from shifting, and improve the sealing stability.

[0008] The protruding frame is located inside the limiting groove; the limiting groove constrains the protruding frame and the sealing gasket, preventing the sealing gasket from shifting and improving sealing stability.

[0009] The sealing gasket is set outside the protruding frame inside the limiting groove; the limiting groove constrains the protruding frame and the sealing gasket, preventing the sealing gasket from shifting and improving the sealing stability.

[0010] The top block is slidably installed at the upper and lower ends inside the side frame. An adjusting component is rotatably installed on the outside of the top block, and the adjusting component is connected to the side frame by a threaded engagement. The adjusting component inside the side frame drives the top block to squeeze the first clamping plate and the second clamping plate, which realizes precise clamping of the oil leakage part. It has the advantage of uniform force distribution and solves the problems of low adjustment accuracy and poor sealing effect of traditional clamps. It can be installed without stopping the machine for disassembly, reducing maintenance costs and impact on power supply.

[0011] Preferably, the side frame is provided with reinforcing ribs at both the upper and lower ends, and the reinforcing ribs are welded and fixed to the side frame.

[0012] Preferably, the first and second clamping plates have equidistantly distributed perforations on the side near the side frame, and the perforations are integrally formed with the first and second clamping plates.

[0013] Preferably, a limiting angle shell is provided on the lower part of the outer side of the first clamping plate near both ends of the second clamping plate, and the limiting angle shell is welded and fixed to the first clamping plate. The limiting angle shell enables the first clamping plate and the second clamping plate to be aligned when they are joined.

[0014] Preferably, limiting shells are provided on both sides of the first clamping plate, and the limiting shells are welded and fixed to the first clamping plate.

[0015] Preferably, limit strips are provided on both sides of the second clamping plate, and the limit strips are welded and fixed to the second clamping plate.

[0016] Preferably, the limiting shell has an inner cavity, and a limiting block and a pull rod are installed sequentially from the inside to the outside of the inner cavity. The pull rod passes through and extends to the outside of the limiting shell. The side of the limiting block near the limiting strip is inclined, so that the limiting block retracts when the limiting strip is combined with the limiting shell, and the limiting block is pushed into the side groove by the elastic reset member when the limiting block is aligned with the side groove.

[0017] Preferably, an elastic reset element is installed on the outside of the pull rod, and the elastic reset element is disposed inside the inner cavity. The elastic reset element is a reset spring, so that the limit block has automatic reset property.

[0018] Preferably, a side groove is provided on the outer side of the limiting strip, and the limiting block is adapted to the side groove.

[0019] Preferably, both the first clamping plate and the second clamping plate have strip grooves on their outer surfaces. The top block is adapted to the strip grooves, which are used to engage the top block and improve its stability.

[0020] Compared with the prior art, the present invention provides a large power transformer leak sealing device, which has the following features:

[0021] Beneficial effects:

[0022] This invention uses an adjusting component inside the side frame to drive the top block to press against the first and second clamping plates, achieving precise clamping of the oil leakage area. This provides the advantage of uniform force distribution and solves the problems of low adjustment accuracy and poor sealing effect of traditional clamps. At the same time, the limiting groove constrains the convex frame and sealing gasket, preventing the sealing gasket from shifting and improving sealing stability. It can be installed without stopping the machine for disassembly, reducing maintenance costs and the impact on power supply. Attached Figure Description

[0023] Figure 1 This is a perspective view of the overall structure of the present invention;

[0024] Figure 2 This is a perspective view of the first and second clamping plates of the present invention in a separated state;

[0025] Figure 3 This is a perspective view of the side frame structure of the present invention;

[0026] Figure 4 This is a cross-sectional view of the limiting shell structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the sealing gasket and the second clamping plate structure of the present invention in a separated state.

[0028] In the diagram: 1. First clamping plate; 2. Second clamping plate; 3. Strip groove; 4. Limiting corner shell; 5. Limiting groove; 6. Protruding frame; 7. Sealing gasket; 8. Perforation; 9. Side frame; 10. Reinforcing rib; 11. Adjusting component; 12. Top block; 13. Limiting shell; 14. Limiting strip; 15. Inner cavity; 16. Limiting block; 17. Pull rod; 18. Elastic reset component; 19. Side groove. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] This invention provides a technical solution: a leak-sealing device for large power transformers. Please refer to [link / reference]. Figures 1-5 ,include:

[0031] The first clamping plate 1, the second clamping plate 2, and the side frame 9 are provided. The second clamping plate 2 is located at the lower part of the first clamping plate 1, and the side frame 9 is located outside the second clamping plate 2 and the first clamping plate 1.

[0032] Limiting grooves 5 are respectively opened on one side of the inside of the first clamping plate 1 and the second clamping plate 2;

[0033] The protruding frame 6 is set inside the limiting groove 5;

[0034] The sealing gasket 7 is located outside the protrusion 6 inside the limiting groove 5;

[0035] The top block 12 is slidably installed at the upper and lower ends inside the side frame 9. An adjusting component 11 is rotatably installed on the outside of the top block 12, and the adjusting component 11 is connected to the side frame 9 by a threaded connection.

[0036] The side frame 9 is C-shaped and installed on the outside of the merged first clamping plate 1 and second clamping plate 2.

[0037] Please see Figure 1 and Figure 3 The upper and lower ends of the side frame 9 are provided with reinforcing ribs 10, and the reinforcing ribs 10 are welded and fixed to the side frame 9. The reinforcing ribs 10 improve the stability and strength of the side frame 9.

[0038] Please see Figure 2 The first clamping plate 1 and the second clamping plate 2 have equally spaced through holes 8 on the side near the side frame 9. The through holes 8 are integrally formed with the first clamping plate 1 and the second clamping plate 2. The through holes 8 are used for bolts to pass through, so that the first clamping plate 1 and the second clamping plate 2 are fixedly clamped by bolts.

[0039] Please see Figure 1 and Figure 2 The lower part of the first clamping plate 1 near both ends of the second clamping plate 2 is provided with limiting corner shells 4, and the limiting corner shells 4 are welded and fixed to the first clamping plate 1. The limiting corner shells 4 enable the first clamping plate 1 and the second clamping plate 2 to be aligned and limited when they are combined.

[0040] Please see Figure 1 , Figure 2 and Figure 4 Both sides of the first clamping plate 1 are provided with limiting shells 13, and the limiting shells 13 are welded and fixed to the first clamping plate 1.

[0041] Please see Figure 1 , Figure 2 and Figure 4 Limiting strips 14 are provided on both sides of the second clamping plate 2, and the limiting strips 14 are welded and fixed to the second clamping plate 2.

[0042] Please see Figure 2 and Figure 4 The limiting shell 13 has an inner cavity 15. Inside the inner cavity 15, a limiting block 16 and a pull rod 17 are installed sequentially from the inside to the outside. The pull rod 17 passes through and extends to the outside of the limiting shell 13. The side of the limiting block 16 near the limiting strip 14 is inclined, so that when the limiting strip 14 is engaged with the limiting shell 13, the limiting block 16 retracts. When the limiting block 16 is aligned with the side groove 19, the limiting block 16 is pushed into the side groove 19 by the elastic reset member 18.

[0043] Please see Figure 2 and Figure 4 An elastic reset element 18 is installed on the outside of the pull rod 17, and the elastic reset element 18 is located inside the inner cavity 15. The elastic reset element 18 is a reset spring, which enables the limit block 16 to have automatic reset capability.

[0044] Please see Figure 2 and Figure 4 A side groove 19 is provided on the outer side of the limiting strip 14, and the limiting block 16 is adapted to the side groove 19.

[0045] Please see Figure 1 , Figure 2 and Figure 3 The first clamping plate 1 and the second clamping plate 2 are both provided with strip grooves 3 on their exteriors. The top block 12 is adapted to the strip grooves 3. The strip grooves 3 are used to engage the top block 12 and improve the stability of the top block 12.

[0046] This solution involves merging the first clamping plate 1 and the second clamping plate 2, with a C-shaped side frame 9 installed outside the merged first clamping plate 1 and second clamping plate 2. A limiting corner shell 4 provides positioning and alignment for the merged plates. During the merging process, the limiting strips 14 on both sides of the second clamping plate 2 are inserted into the limiting shells 13 on both sides of the first clamping plate 1. The limiting strips 14 press against the inclined surface of the limiting block 16, causing it to retract inwards. When the limiting block 16 aligns with the side groove 19, the elastic reset member 18 pushes the limiting block 16 into the side groove 19, achieving initial positioning. Next, bolts are inserted through the through holes 8 to securely clamp the first clamping plate 1 and the second clamping plate 2. Then, the adjusting member 11 is rotated, and its threaded engagement with the side frame 9 causes the top block 12 to slide, engaging the strip groove 3 for further reinforcement. The reinforcing ribs 10 on the outside of the side frame 9 enhance its stability and strength. The protruding frame 6 and sealing gasket 7 within the limiting groove 5 ensure a tight clamping seal. When separation is required, the pull rod 17 is pulled to disengage the limiting block 16 from the side groove 19.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak-sealing device for a large power transformer, characterized in that, include: The first clamping plate (1), the second clamping plate (2), and the side frame (9) are provided. The second clamping plate (2) is located at the lower part of the first clamping plate (1), and the side frame (9) is located outside the second clamping plate (2) and the first clamping plate (1). Limiting grooves (5) are respectively opened on one side of the inside of the first clamping plate (1) and the second clamping plate (2); A convex frame (6) is disposed inside the limiting groove (5); A sealing gasket (7) is provided on the outside of the protrusion (6) inside the limiting groove (5); The top block (12) is slidably installed at the upper and lower ends inside the side frame (9). An adjusting component (11) is rotatably installed on the outside of the top block (12), and the adjusting component (11) is connected to the side frame (9) by a threaded connection.

2. The large power transformer leak-sealing device according to claim 1, characterized in that: The side frame (9) is provided with reinforcing ribs (10) at both the upper and lower ends, and the reinforcing ribs (10) are welded and fixed to the side frame (9).

3. A large power transformer leak-sealing device according to claim 1, characterized in that: The first clamping plate (1) and the second clamping plate (2) have equally spaced perforations (8) on the side near the side frame (9), and the perforations (8) are integrally formed with the first clamping plate (1) and the second clamping plate (2).

4. A large power transformer leak-sealing device according to claim 1, characterized in that: The lower part of the first clamping plate (1) near both ends of the second clamping plate (2) is provided with limiting corner shells (4), and the limiting corner shells (4) are welded and fixed to the first clamping plate (1).

5. A large power transformer leak-sealing device according to claim 1, characterized in that: Both sides of the first clamping plate (1) are provided with limiting shells (13), and the limiting shells (13) are welded and fixed to the first clamping plate (1).

6. A large power transformer leak-sealing device according to claim 5, characterized in that: Limiting strips (14) are provided on both sides of the second clamping plate (2), and the limiting strips (14) are welded and fixed to the second clamping plate (2).

7. A large power transformer leak-sealing device according to claim 6, characterized in that: The limiting shell (13) has an inner cavity (15) inside. A limiting block (16) and a pull rod (17) are installed in the inner cavity (15) from the inside to the outside. The pull rod (17) passes through and extends to the outside of the limiting shell (13).

8. A large power transformer leak-sealing device according to claim 7, characterized in that: The pull rod (17) is externally mounted with an elastic reset member (18), and the elastic reset member (18) is located inside the inner cavity (15).

9. A large power transformer leak-sealing device according to claim 7, characterized in that: The limiting strip (14) has a side groove (19) on its outer side, and the limiting block (16) is adapted to the side groove (19).

10. A large power transformer leak-sealing device according to claim 1, characterized in that: The first clamping plate (1) and the second clamping plate (2) are both provided with strip grooves (3) on their exteriors, and the top block (12) is adapted to the strip grooves (3).

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