Oil leakage prevention valve for power transformer oil tank
By using sealing gaskets, protective cloths and tinsels in oil leakage protection valves in the power transformer oil tank, the problems of sealing leakage and welding leakage are solved, delaying oil leakage and preventing corrosion, ensuring the normal operation and use of the device .
Patent Information
- Application Number
- CN202323666521.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The existing oil leakage-proof valves used in the oil tank of the power transformer are prone to seal leakage or welding leakage after the transformer leaks, resulting in lowering of the oil surface, dampening of the coil, and unable to delay oil leakage in the out-of-control state, and the conveying medium has Corrosive, damages the inner and outer walls of the pipe.
An oil leakage valve is designed including a sealing gasket, protective cloth and finess cloth. The sealing gasket is used to prevent sealing leakage, and the protective cloth and finess cloth are used to delay oil leakage and prevent corrosion. The finess cloth can absorb oil and extend the device. The service life of the sealing gasket and protective cloth are made of coated materials and gray cast iron to ensure the normal operation of the device.
It effectively prevents sealing leakage and welding leakage, delays the oil leakage process, protects valves and pipelines, ensures the normal use of the power transformer oil tank and prevents corrosion.
Smart Images
Figure CN222363565U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil leakage prevention valves, in particular to an oil leakage prevention valve used for an oil tank of a power transformer. Background Art
[0002] An anti-leakage valve is a control device that mainly uses a combination of a main valve and an auxiliary valve to seal the liquid or gas in the pipeline in time when a leak occurs. The main principle of an anti-leakage valve is a mechanical principle based on pressure difference. Anti-leakage valves are mainly used in pipeline systems, oil fields, petrochemicals, electric power and other fields to control the flow of fluid media in pipelines or equipment, thereby ensuring the safety and stability of the process. Anti-leakage valves are also widely used in the following occasions: chemical industry, food processing, pharmaceuticals, water treatment, papermaking, textiles, steelmaking and other industries.
[0003] The current anti-leakage valve for power transformer oil tank can control the fluid medium of pipeline and equipment, but the leakage of transformer in the existing anti-leakage valve for power transformer oil tank can be roughly divided into sealing leakage and welding leakage. When the transformer leaks oil, oil can come out and water can go in, which will lower the oil level in the transformer. When the oil level is too low, the coil of the transformer will be exposed to the oil surface, and the insulating oil and transformer coil will be damp, which will seriously affect the normal use of the device due to the overall insulation of the transformer. At the same time, the existing anti-leakage valve for power transformer oil tank cannot delay the oil leakage process in the event of an out-of-control state. At the same time, the transported medium is also corrosive, so the inner and outer walls of the pipeline may be corroded and the valve cannot be protected. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] The technical problem to be solved by the utility model is to provide an anti-leakage oil valve for a power transformer oil tank which can protect the valve in view of the current status of the prior art.
[0006] (II) Technical solution
[0007] The utility model is realized by the following technical scheme: the utility model proposes an anti-leakage valve for an oil tank of a power transformer, comprising a handle, a fixing block is fixed on one side of the handle, a fixing plate 1 is arranged on one side of the fixing block, a fixing pipe is arranged on one side of the fixing plate 1, a straight-through pipe 1 is arranged in the middle of one side of the fixing pipe, a disc 1 is connected to one side of the straight-through pipe 1, one side of the disc 1 is evenly provided with holes 1, a fine cotton cloth is installed on the other side of the fixing plate 1, a fixing plate 2 is arranged on one side of the fine cotton cloth, a straight-through pipe 2 is installed on the fixing plate 2, a protective cloth is installed inside the straight-through pipe 2, a through hole is opened in the middle of the protective cloth, a disc 2 is connected to one side of the straight-through pipe 2, a connecting port is opened in the middle of the disc 2, a sealing gasket is fixed in the middle of the connecting port, and holes 2 are evenly distributed on one side of the disc 2.
[0008] Furthermore, the sealing gasket is connected to the connection port slot, the connection port is formed on the second disc, and the first hole is formed on the first disc.
[0009] By adopting the above technical solution, the sealing gasket can be replaced when the oil tank of the power transformer is out of oil, so that the problem of sealing leakage of the oil tank of the power transformer will not occur.
[0010] Furthermore, the second hole is formed on the second disc, and the second straight-through pipe is welded to the second disc.
[0011] By adopting the above technical solution, the second hole can be used to connect the device and the power transformer oil tank through bolts, thereby ensuring the normal operation of the device.
[0012] Furthermore, the second straight-through pipe is welded to the second fixing plate, the second fixing plate is made of gray cast iron, and the second straight-through pipe is made of gray iron.
[0013] By adopting the above technical solution, the straight-through pipe 2 is made of gray cast iron because gray cast iron has very good casting performance and can be processed by various processes such as casting, die-casting, injection molding, etc. Its casting temperature range is wide and can adapt to different casting processes and requirements, so that the straight-through pipe 2 can have good reliability.
[0014] Furthermore, the second straight-through pipe is bonded to the protective cloth, the protective cloth is made of a coated material, and the through hole is formed on the second straight-through pipe.
[0015] By adopting the above technical solution, the protective cloth is made of a coated material because a layer of waterproof and oil-proof film is added to the surface through the coating technology. This coating material can well isolate liquids such as water and grease, and can protect the straight-through pipe 2.
[0016] Furthermore, the fine cotton cloth is connected to the slot of the first fixing plate, the second fixing plate is connected to the slot of the fine cotton cloth, and the first fixing plate is welded to the fixing block.
[0017] By adopting the above technical solution, the fine cotton cloth can absorb the oil when the valve leaks, thereby delaying the damage process of the device.
[0018] Furthermore, the fixing block is connected to the handle bolt, the fixing plate 1 is connected to the fixing pipe bolt, the fixing pipe is welded to the straight pipe 1, the straight pipe 1 is welded to the disc 1, and the hole 1 is formed on the disc 1.
[0019] By adopting the above technical solution, the handle part exists inside the fixed tube, so that the handle can control the flow rate of the oil inside the device, thereby ensuring the normal flow of the oil.
[0020] (III) Beneficial effects
[0021] Compared with the prior art, the utility model has the following beneficial effects:
[0022] 1. To solve the problem that the leakage of the transformer in the existing anti-leakage valve for the oil tank of the power transformer can be roughly divided into sealing leakage and welding leakage. When the transformer leaks oil, the oil can come out and the water can enter, which will lower the oil level in the transformer. When the oil level is too low, the coil of the transformer will be exposed to the oil surface, and the insulating oil and the transformer coil will be damp, which will seriously affect the normal use of the device by affecting the overall insulation of the transformer. The utility model adopts the design of the sealing gasket, and the sealing gasket can ensure that the device does not have sealing leakage. At the same time, when there is no oil in the oil tank of the power transformer, the valve and the oil tank of the power transformer can be disassembled and the sealing gasket can be replaced, so that the transformer will not leak oil and water cannot enter, ensuring the normal use of the oil tank of the power transformer;
[0023] 2. In order to solve the problem that the existing anti-leakage valve of the oil tank of the power transformer cannot delay the oil leakage process when it is out of control, and the medium transported is also corrosive, so the inner and outer walls of the pipeline may be corroded, and the valve cannot be protected, the utility model can delay the oil leakage process of the device when the valve is out of control through the design of protective cloth and fine cotton cloth. At the same time, the protective cloth can prevent the inner and outer walls of the pipeline from being corroded, thereby protecting the valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural schematic diagram of an anti-leakage oil valve for a power transformer oil tank according to the utility model;
[0025] Figure 2 This is a schematic diagram of the structure of the second straight-through pipe in the oil leakage prevention valve for the oil tank of a power transformer described in the utility model;
[0026] Figure 3 The utility model is a structural schematic diagram of a fine cotton cloth in an oil leakage prevention valve for an oil tank of a power transformer.
[0027] The reference numerals are as follows:
[0028] 1. Handle; 2. Disc 1; 3. Hole 1; 4. Straight pipe 1; 5. Fixing block; 6. Fixing pipe; 7. Fixing plate 1; 8. Fixing plate 2; 9. Straight pipe 2; 10. Disc 2; 11. Connection port; 12. Hole 2; 13. Sealing pad; 14. Protective cloth; 15. Through hole; 16. Fine cotton cloth. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0030] like Figure 1-Figure 3 As shown, in this embodiment, an anti-leakage oil valve for a power transformer oil tank comprises a handle 1, a fixing block 5 is fixed on one side of the handle 1, a fixing plate 7 is arranged on one side of the fixing block 5, a fixing pipe 6 is arranged on one side of the fixing plate 7, a straight-through pipe 4 is arranged in the middle of one side of the fixing pipe 6, a disc 2 is connected to one side of the straight-through pipe 4, holes 3 are evenly distributed on one side of the disc 2, a fine cotton cloth 16 is installed on the other side of the fixing plate 7, the fine cotton cloth 16 can absorb oil when the valve leaks, thereby delaying the damage process of the device, a fixing plate 28 is arranged on one side of the fine cotton cloth 16, and the fixing plate 28 is arranged on one side of the fixing plate 28. 8 is equipped with a straight-through pipe 9. The straight-through pipe 9 is made of gray cast iron because the gray cast iron has very good casting performance and can be processed by various processes such as casting, die-casting, and injection molding. The casting temperature range is wide and can adapt to different casting processes and requirements, so that the straight-through pipe 9 has good reliability. A protective cloth 14 is installed inside the straight-through pipe 9, and a through hole 15 is opened in the middle of the protective cloth 14. A disc 10 is connected to one side of the straight-through pipe 9. A connecting port 11 is opened in the middle of the disc 10, and a sealing gasket 13 is fixed in the middle of the connecting port 11. Holes 12 are evenly distributed on one side of the disc 10.
[0031] like Figure 1-Figure 3As shown, in this embodiment, the sealing gasket 13 is connected to the connection port 11 by a slot, the connection port 11 is formed on the disc 10, the hole 13 is formed on the disc 12, the hole 12 is formed on the disc 10, the hole 12 can be connected to the device and the power transformer tank by bolts, so as to ensure the normal operation of the device, the straight pipe 29 is welded to the disc 10, the straight pipe 29 is welded to the fixing plate 28, the fixing plate 28 is made of gray cast iron, the straight pipe 29 is made of gray iron, the straight pipe 29 is bonded to the protective cloth 14, the protective cloth 14 is made of a coated material, and the through hole 15 is formed on the straight pipe 29.
[0032] like Figure 1-Figure 3 As shown, in this embodiment, the fine cotton cloth 16 is connected to the fixing plate 7 by a slot, the fixing plate 2 8 is connected to the fine cotton cloth 16 by a slot, the fixing plate 7 is welded to the fixing block 5, the fixing block 5 is bolted to the handle 1, and there is a handle 1 part inside the fixing tube 6, so that the handle 1 can control the flow rate of the oil inside the device, thereby ensuring the normal flow of the oil, the fixing plate 7 is bolted to the fixing tube 6, the fixing tube 6 is welded to the straight-through tube 4, the straight-through tube 4 is welded to the disc 2, and the hole 3 is formed on the disc 2.
[0033] The specific implementation process of this embodiment is as follows: first, the straight pipe 2 9 can be connected to the bottom of the power transformer oil tank, so that the hole 2 12 can connect the disc 2 10 and the device to the power transformer oil tank. At the same time, the sealing gasket 13 can prevent the seal from leaking. Secondly, the oil flow rate can be controlled by the handle 1 to ensure the normal operation of the valve. When the device leaks, the fine cotton cloth 16 can be used to extend the service life of the device, so that the device will not leak oil all at once, so that the device will not be completely out of control.
[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An anti-leakage valve for a power transformer oil tank, characterized in that: The invention comprises a handle (1), a fixing block (5) is fixed on one side of the handle (1), a fixing plate (7) is arranged on one side of the fixing block (5), a fixing tube (6) is arranged on one side of the fixing plate (7), a straight tube (4) is arranged in the middle of one side of the fixing tube (6), one side of the straight tube (4) is connected to a disc (2), one side of the disc (2) is evenly provided with holes (3), a fine cotton cloth (16) is installed on the other side of the fixing plate (7), and the fine cotton cloth (16) ) is provided with a fixing plate 2 (8) on one side, the fixing plate 2 (8) is installed with a straight pipe 2 (9), a protective cloth (14) is installed inside the straight pipe 2 (9), a through hole (15) is opened in the middle of the protective cloth (14), one side of the straight pipe 2 (9) is connected to a disc 2 (10), a connecting port (11) is opened in the middle of the disc 2 (10), a sealing gasket (13) is fixed in the middle of the connecting port (11), and two holes (12) are evenly distributed on one side of the disc 2 (10).
2. The anti-leakage oil valve for a power transformer oil tank according to claim 1, characterized in that: The sealing gasket (13) is connected to the connection port (11) by a slot, the connection port (11) is formed on the second disc (10), and the hole one (3) is formed on the first disc (2).
3. The anti-leakage oil valve for a power transformer oil tank according to claim 1, characterized in that: The second hole (12) is formed on the second disc (10), and the second straight pipe (9) is welded to the second disc (10).
4. The anti-leakage oil valve for a power transformer oil tank according to claim 1, characterized in that: The second straight-through pipe (9) is welded to the second fixing plate (8), the second fixing plate (8) is made of gray cast iron, and the second straight-through pipe (9) is made of gray iron.
5. The anti-leakage oil valve for a power transformer oil tank according to claim 1, characterized in that: The second straight-through pipe (9) is bonded to the protective cloth (14), and the through hole (15) is formed on the second straight-through pipe (9).
6. The anti-leakage oil valve for a power transformer oil tank according to claim 1, characterized in that: The fine cotton cloth (16) is connected to the slot of the fixing plate 1 (7), the fixing plate 2 (8) is connected to the slot of the fine cotton cloth (16), and the fixing plate 1 (7) is welded to the fixing block (5).
7. The anti-leakage oil valve for a power transformer oil tank according to claim 1, characterized in that: The fixing block (5) is bolted to the handle (1), the fixing plate (7) is bolted to the fixing pipe (6), the fixing pipe (6) is welded to the straight pipe (4), the straight pipe (4) is welded to the disc (2), and the hole (3) is formed on the disc (2).