Oil seepage prevention power transformer
By installing a protective shell on the connecting pipe of the power transformer and using the sealing surface to form a closed space, the problem of oil leakage at the connection between the oil tank and the oil conservator is solved, and the effect of preventing oil leakage is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN JINYU ELECTRIC CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-10
AI Technical Summary
The lack of protective measures at the connection between the oil tank and the oil conservator of the power transformer has led to frequent oil leakage.
By installing a protective shell on the connecting pipe between the oil tank and the oil conservator, and using the first and second sealing surfaces to form a closed space, oil leakage is prevented.
This effectively prevents oil leakage and ensures that the connection between the oil tank and the oil conservator is sealed.
Smart Images
Figure CN224480854U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power transformer technology, and more particularly to a power transformer that prevents oil leakage. Background Technology
[0002] The oil tank and conservator of a power transformer are connected by pipes, and the conservator replenishes transformer oil to the tank. Due to the lack of protective measures at the connections between the pipes and the tank and conservator, oil leakage can occur at these joints. Utility Model Content
[0003] In view of this, the purpose of this application is to provide a power transformer that prevents oil leakage, so that the connection is placed inside a closed space to prevent oil leakage.
[0004] The technical solution of this application is as follows:
[0005] This application provides a power transformer for preventing oil leakage, including a pipe connected between an oil tank and an oil conservator. The connecting pipes on the oil tank and the oil conservator are connected to the pipe via flanges. The pipe and the connecting pipe are fitted with a protective shell that can wrap the flange after being screwed together. The protective shell has a first sealing surface inside, and the flange has a second sealing surface. The second sealing surface and the first sealing surface have the same slope and fit together.
[0006] By adopting the technical solution of this application, after the two corresponding protective shells are screwed together, the first sealing surface and the second sealing surface are attached to each other, thereby forming a closed space that wraps around the flange, which can prevent oil leakage.
[0007] In some implementations, a reinforcing ring is provided at the root of the flange.
[0008] In some implementations, the second sealing surface is formed on the reinforcing ring.
[0009] In some implementations, the second sealing surface is configured as an annular ring arranged coaxially with the flange.
[0010] In some implementations, the protective shell is constructed as a cylinder arranged coaxially with the flange.
[0011] In some implementations, a connecting cylinder is provided inside the protective shell.
[0012] In some implementations, the connecting cylinder and the protective shell are arranged coaxially.
[0013] In some implementations, the inner diameter of the connecting sleeve is larger than the inner diameter of the flange.
[0014] In some implementations, the first sealing surface is formed at the end of the connecting cylinder.
[0015] In some implementations, the reinforcing ring is inserted inside the connecting cylinder. Attached Figure Description
[0016] Exemplary embodiments of this application will now be described in detail with reference to the accompanying drawings. It should be understood that the embodiments described below are for illustrative purposes only and are not intended to limit the scope of this application. In the accompanying drawings:
[0017] Figure 1 This is a schematic diagram of a power transformer for preventing oil leakage according to an embodiment of this application;
[0018] Figure 2 This is a schematic diagram of the installation of the protective shell according to an embodiment of this application;
[0019] Figure 3 This is a schematic diagram of a protective shell according to an embodiment of this application;
[0020] Figure 4 This is a schematic diagram of the reinforcing ring according to an embodiment of this application;
[0021] Figure label:
[0022] 10. Fuel tank; 11. Connecting pipe;
[0023] 20. Oil pillow;
[0024] 30. Pipeline; 31. Flange; 32. Reinforcing ring; 33. Second sealing surface;
[0025] 40. Protective shell; 41. Connecting cylinder; 42. First sealing surface. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description of this application is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit this application.
[0027] In related technologies, the oil tank 10 and oil conservator 20 of a power transformer are connected together by a pipe 30, and the oil conservator 20 can replenish transformer oil into the oil tank 10. Because the connection between the pipe 30 and the oil tank 10 and oil conservator 20 lacks protective measures, oil leakage occurs at the connection point.
[0028] In view of this, the purpose of this embodiment is to provide a power transformer that prevents oil leakage, so that the connection is placed inside a closed space to prevent oil leakage.
[0029] Please see Figures 1-4In this embodiment, a power transformer for preventing oil leakage includes a pipe 30 connected between an oil tank 10 and an oil conservator 20. A connecting pipe 11 on the oil tank 10 and the oil conservator 20 is connected to the pipe 30 via a flange 31. A protective shell 40 is fitted on the pipe 30 and the connecting pipe 11, which can wrap the flange 31 after being screwed together. A first sealing surface 42 is provided inside the protective shell 40, and a second sealing surface 33 is provided on the flange 31. The second sealing surface 33 and the first sealing surface 42 have the same slope and fit together.
[0030] Using the technical solution of this embodiment, after the two corresponding protective shells 40 are screwed together, the first sealing surface 42 and the second sealing surface 33 are attached to each other, thereby forming a closed space that wraps around the flange 31, which can prevent oil leakage.
[0031] In this embodiment, flanges 31 are welded to the ends of pipe 30 and connecting pipe 11 respectively, and two corresponding flanges 31 on pipe 30 and connecting pipe 11 are bolted together, thereby connecting pipe 30 and communicating between oil tank 10 and oil conservator 20. Transformer oil can be replenished into oil tank 10 using oil conservator 20.
[0032] It should be noted that a reinforcing ring 32 is welded at the root of the flange 31. The reinforcing ring 32 is arranged on the side opposite to the mating surface of the flange 31. The reinforcing ring 32 is constructed as a ring. The reinforcing ring 32 and the flange 31 are arranged coaxially. The second sealing surface 33 is formed on the reinforcing ring 32, so that the reinforcing ring 32 is constructed as a right triangle along the cross section. The second sealing surface 33 is constructed as a ring arranged coaxially with the flange 31.
[0033] In this embodiment, the protective shell 40 is generally constructed as a cylindrical shape arranged coaxially with the flange 31. A connecting cylinder 41 is welded to the end plate of the protective shell 40. The connecting cylinder 41 is constructed as a cylindrical shape arranged coaxially with the protective shell 40, and the inner diameter of the connecting cylinder 41 is larger than the inner diameter of the flange 31. A first sealing surface 41 is formed at the end of the connecting cylinder 41. The first sealing surface 41 and the second sealing surface 33 on the corresponding flange 31 have the same slope. After the reinforcing ring 32 is inserted into the connecting cylinder 41, the first sealing surface 41 and the second sealing surface 33 can fit together.
[0034] It should be noted that after the connecting pipe 11 and the corresponding flange 31 on the pipe 30 are bolted together, the two protective shells 40 on both sides of the flange 31 are screwed together. As the two protective shells 40 are screwed in relative to each other, the first sealing surface 41 and the second sealing surface 33 are tightly fitted together, thereby enclosing the flange 31 in a closed space, which can prevent oil leakage.
[0035] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A power transformer designed to prevent oil leakage, characterized in that, It includes a pipeline connecting an oil tank and an oil conservator. The connecting pipes on the oil tank and the oil conservator are connected to the pipeline via flanges. The pipeline and the connecting pipe are fitted with protective shells that can wrap the flanges after being screwed together. The protective shells have a first sealing surface inside, and the flanges have a second sealing surface. The second sealing surface and the first sealing surface have the same slope and fit together.
2. The power transformer for preventing oil leakage as described in claim 1, characterized in that, A reinforcing ring is provided at the root of the flange.
3. The power transformer for preventing oil leakage as described in claim 2, characterized in that, The second sealing surface is formed on the reinforcing ring.
4. The power transformer for preventing oil leakage as described in claim 3, characterized in that, The second sealing surface is configured as an annular shape arranged coaxially with the flange.
5. The power transformer for preventing oil leakage as described in claim 4, characterized in that, The protective shell is constructed as a cylinder arranged coaxially with the flange.
6. The power transformer for preventing oil leakage as described in claim 5, characterized in that, The protective shell has a connecting cylinder inside.
7. The power transformer for preventing oil leakage as described in claim 6, characterized in that, The connecting cylinder is arranged coaxially with the protective shell.
8. The power transformer for preventing oil leakage as described in claim 7, characterized in that, The inner diameter of the connecting cylinder is larger than the inner diameter of the flange.
9. The power transformer for preventing oil leakage as described in claim 8, characterized in that, The first sealing surface is formed at the end of the connecting cylinder.
10. The power transformer for preventing oil leakage as described in claim 9, characterized in that, The reinforcing ring is inserted into the connecting cylinder.