Gas insulated metal enclosed electrical apparatus filling gas valve

Abstract

The utility model discloses a kind of gas-insulated metal-enclosed electrical apparatus filling gas valves, including first adjusting assembly, including double-end pipe fitting, first moving part of the double-end pipe fitting inner wall being arranged and first sealing member of the first moving part outer wall being arranged;And, second adjusting assembly is connected with the side of the first adjusting assembly, including single-end pipe fitting, second moving part is slidably connected with the single-end pipe fitting inner wall, second sealing member is arranged in the second moving part outer wall.When first adjusting assembly leaks, first adjusting assembly can be directly screwed off, so that second moving part plugs single-end pipe fitting, so that the air tightness of equipment can be guaranteed when replacing first adjusting assembly, so as to reduce the influence on electrical equipment.

Description

Technical Field

[0001] This utility model relates to the field of gas filling valves for electrical equipment, and in particular to a gas-insulated metal-sealed gas filling valve for electrical equipment. Background Technology

[0002] Currently, the filling valves on gas-insulated metal-enclosed switchgear (GIS) and gas-insulated metal-enclosed transmission lines (GIL) are mainly self-sealing valves. These valves are bolted to the body and the body pressure is observed through external pipelines or directly connected to meters, or they are used directly as filling ports.

[0003] The connection between the valve and the body is usually sealed with a sealing ring. If the seal leaks, the gas in the body's air chamber needs to be purged and the sealing ring replaced. The whole process is complicated and extremely risky. If foreign objects or metal particles fall into the air chamber, it often affects the safe operation of the equipment. In addition, the sealing ring replacement process is time-consuming, which affects the available hours of the power equipment and economic benefits. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is: an electrical equipment charging valve that can be directly replaced without affecting the operation of the power equipment.

[0005] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a gas-insulated metal-sealed electrical equipment charging valve, which includes a first adjusting component, comprising a double-ended pipe fitting, a first movable component disposed on the inner wall of the double-ended pipe fitting, and a first sealing component disposed on the outer wall of the first movable component; and,

[0006] The second adjustment component connected to one side of the first adjustment component includes a single-ended pipe, a second movable component slidably connected to the inner wall of the single-ended pipe, and a second sealing component disposed on the outer wall of the second movable component.

[0007] In a preferred embodiment of the gas-insulated metal-enclosed electrical equipment charging valve of this utility model: the double-ended pipe fitting includes a double-ended pipe body, a tapered pipe disposed on the top of the double-ended pipe body, an externally threaded pipe disposed on the outer wall of the tapered pipe, a first support plate disposed on the inner wall of the double-ended pipe body, and a first sleeve disposed on one side of the first support plate.

[0008] In a preferred embodiment of the gas-insulated metal-enclosed electrical equipment charging valve of this utility model: the first moving member includes a moving rod, a fixed rod disposed at the top of the moving rod, and an elastic member disposed at the bottom of the fixed rod.

[0009] In a preferred embodiment of the gas-insulated metal-enclosed electrical equipment charging valve of this utility model: the outer wall of the moving rod is slidably connected to the inner wall of the tapered tube, the bottom of the moving rod is slidably connected to the inner wall of the first sleeve, and the elastic element is disposed on the inner wall of the first sleeve.

[0010] In a preferred embodiment of the gas-insulated metal-enclosed electrical equipment charging valve of this utility model: the first sealing element includes a conical sealing tube and a first sealing ring disposed on one side of the conical sealing tube.

[0011] In a preferred embodiment of the gas-insulated metal-enclosed electrical equipment charging valve of this utility model: the outer wall of the conical sealing tube is connected to the outer wall of the moving rod, and the outer wall of the conical sealing tube is attached to the inner wall of the conical tube.

[0012] In a preferred embodiment of the gas-insulated metal-enclosed electrical equipment charging valve of this utility model: a first sealing ring is provided on the inner wall of the double-ended tube body, and the outer wall of the second sealing ring is in contact with the outer wall of the first sealing ring.

[0013] In a preferred embodiment of the gas-insulated metal-enclosed electrical equipment charging valve of this utility model: a first through hole is provided on one side of the first support plate, and a second through hole is provided on the outer wall of the tapered sealing tube.

[0014] In a preferred embodiment of the gas-insulated metal-enclosed electrical equipment charging valve of this utility model: a second support plate is provided on the inner wall of the single-ended pipe fitting, a second sleeve is provided on one side of the second support plate, and the bottom of the second moving part is slidably connected to the inner wall of the second sleeve.

[0015] In a preferred embodiment of the gas-insulated metal-sealed electrical equipment charging valve of this utility model: the outer wall of the second sealing element is attached to the inner wall of the single-ended pipe, the outer wall of the single-ended pipe is provided with an internal threaded pipe, and the inner wall of the internal threaded pipe is threadedly connected to the outer wall of the external threaded pipe.

[0016] The beneficial effects of this utility model are as follows: when the first adjustment component leaks, the first adjustment component can be unscrewed directly, so that the second moving part can block the single-ended pipe. This allows for free replacement of the first adjustment component while ensuring the airtightness of the equipment, thereby reducing the impact on electrical equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein:

[0018] Figure 1 The overall structure diagram is shown;

[0019] Figure 2 The overall internal structure diagram is shown;

[0020] Figure 3 A structural diagram of the double-ended pipe fitting is shown;

[0021] Figure 4 A structural diagram of the first moving part is shown;

[0022] Figure 5 A structural diagram of the first seal is shown;

[0023] Figure 6 A cross-sectional view of the second adjustment component is shown;

[0024] Figure 7 An overall sectional view is shown. Detailed Implementation

[0025] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0026] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0027] Reference Figures 1-7 This embodiment provides a gas-insulated metal-sealed electrical equipment charging valve, including a first adjusting assembly 100, comprising a double-ended pipe 101, a first movable member 102 disposed on the inner wall of the double-ended pipe 101, and a first sealing member 103 disposed on the outer wall of the first movable member 102; and a second adjusting assembly 200 connected to one side of the first adjusting assembly 100, comprising a single-ended pipe 201, a second movable member 204 slidably connected to the inner wall of the single-ended pipe 201, and a second sealing member 205 disposed on the outer wall of the second movable member 204, wherein, as Figure 1 As shown, the first adjustment component 100 is interconnected with the second adjustment component 200. In use, the second adjustment component 200 is usually soldered to the equipment, and then the first adjustment component 100 is connected to the second adjustment component 200.

[0028] It should be noted that, as Figure 2As shown, two first moving parts 102 are symmetrically installed in the upper and lower inner walls of the first adjusting component 100, and the two first moving parts 102 are connected to the same components. When the first adjusting component 100 is connected to the second adjusting component 200, one of the first moving parts 102 will abut against the second moving part 204, thereby changing the position of the first moving part 102 and the second moving part 204.

[0029] The double-ended pipe fitting 101 includes a double-ended pipe body 101-1, a tapered pipe 101-2 disposed on the top of the double-ended pipe body 101-1, an externally threaded pipe 101-3 disposed on the outer wall of the tapered pipe 101-2, a first support plate 101-4 disposed on the inner wall of the double-ended pipe body 101-1, and a first sleeve 101-6 disposed on one side of the first support plate 101-4. The tapered pipe 101-2 is integrally formed with the double-ended pipe body 101-1. Tapered pipes 101-2 are disposed on both the upper and lower sides of the double-ended pipe body 101-1. Similarly, the externally threaded pipes 101-3 are welded to the outer walls of both tapered pipes 101-2.

[0030] It should be noted that the first support plate 101-4 is located in the middle of the inner wall of the double-ended tube body 101-1. Its function is to divide the inner wall space of the double-ended tube body 101-1. The first sleeve 101-6 is welded to both sides of the first support plate 101-4.

[0031] The first movable component 102 includes a movable rod 102-1, a fixed rod 102-2 disposed at the top of the movable rod 102-1, and an elastic component 102-3 disposed at the bottom of the fixed rod 102-2. The outer wall of the movable rod 102-1 is slidably connected to the inner wall of the tapered tube 101-2, and the bottom of the movable rod 102-1 is slidably connected to the inner wall of the first sleeve 101-6. The elastic component 102-3 is disposed on the inner wall of the first sleeve 101-6. The movable rod 102-1 is used to block the tapered tube 101-2. At the top of tube 101-2, to prevent airflow from leaking from the round hole of tapered tube 101-2, the diameter of fixed rod 102-2 is smaller than that of moving rod 102-1. When moving rod 102-1 is pushed by external force, when fixed rod 102-2 moves to the round hole of tapered tube 101-2, because the diameter of fixed rod 102-2 is smaller, airflow will flow from the gap between fixed rod 102-2 and tapered tube 101-2 into double-ended tube body 101-1.

[0032] like Figure 7 As shown, the bottom of the moving rod 102-1 is provided with a cylinder with a diameter larger than that of the main body of the moving rod 102-1. The diameter of the cylinder is the same as that of the first sleeve 101-6 and is slidably connected to the inner wall of the first sleeve 101-6. However, the top diameter of the first sleeve 101-6 is smaller than that of the cylinder, so the cylinder cannot slide out of the first sleeve 101-6.

[0033] It should be noted that the elastic element 102-3 is a threaded spring, which is located between the bottom of the cylinder and the bottom of the first sleeve 101-6.

[0034] The first sealing element 103 includes a conical sealing tube 103-1 and a first sealing ring 103-2 disposed on one side of the conical sealing tube 103-1. The outer wall of the conical sealing tube 103-1 is connected to the outer wall of the moving rod 102-1. The outer wall of the conical sealing tube 103-1 is fitted against the inner wall of the conical tube 101-2. The inner wall of the double-ended tube body 101-1 is provided with the first sealing ring 103-2. The outer wall of the second sealing ring 101-7 is fitted against the outer wall of the first sealing ring 103-2. The conical sealing tube 103-1 is connected to the moving rod 102-1 by welding. When the moving rod 102-1 moves, it will drive the conical sealing tube 103-1 to move as well. Figure 7 As shown, the conical sealing tube 103-1 is located inside the double-ended tube body 101-1 and is in contact with the inner wall of the conical tube 101-2. When the moving rod 102-1 moves, the conical sealing tube 103-1 will separate from the conical tube 101-2, and the airflow will flow into the conical tube 101-2.

[0035] It should be noted that, as Figure 5 As shown, a circular protrusion is provided on the second sealing ring 101-7, as if... Figure 7 As shown, the protrusion engages with the first sealing ring 103-2, thereby forming a sealed space with the conical sealing tube 103-1.

[0036] The first support plate 101-4 has a first through hole 101-5 on one side, and the outer wall of the tapered sealing tube 103-1 has a second through hole 103-3. When the airflow flows into the tapered tube 101-2, it will flow through the second through hole 103-3 to the space behind the tapered sealing tube 103-1. The airflow will flow through the first through hole 101-5 to the space on the other side of the double-ended tube body 101-1.

[0037] In summary, the second regulating component 200 is welded or otherwise connected to the gas-insulated metal-enclosed switchgear, and the first regulating component 100 is connected to the second regulating component 200. When gas needs to be input into the gas-insulated metal-enclosed switchgear, a gas pump is connected to one end of the second regulating component 200 and gas is supplied to the second regulating component 200. The high-pressure gas will push the moving rod 102-1 on one side of the second regulating component 200 into the double-ended tube body 101-1. The high-pressure gas will flow through the second through hole 103-3 and the first through hole 101-5 to the side of the double-ended tube body 101-1 connected to the second regulating component 200, and the moving rod 102-1 on this side will... Figure 7As shown, it is in contact with the second moving part 204, and the space there is released, allowing high-pressure gas to directly enter the second regulating component 200 through this space, and then enter the gas-insulated metal-enclosed switchgear.

[0038] As an optional embodiment, this embodiment specifically describes the structure of the second adjustment component 200.

[0039] A second support plate 202 is provided on the inner wall of the single-ended pipe fitting 201. A second sleeve 203 is provided on one side of the second support plate 202. The bottom of the second moving part 204 is slidably connected to the inner wall of the second sleeve 203. The outer wall of the second sealing part 205 is attached to the inner wall of the single-ended pipe fitting 201. An internally threaded pipe 206 is provided on the outer wall of the single-ended pipe fitting 201. The inner wall of the internally threaded pipe 206 is threadedly connected to the outer wall of the externally threaded pipe 101-3. The second adjusting component 200 can be regarded as only half of the first adjusting component 100, and all its components are connected to those of the first adjusting component 100. The components are identical, with the second support plate 202, the second moving part 204, and the second sealing part 205 corresponding to the first support plate 101-4, the first moving part 102, and the first sealing part 103, respectively. The shapes and connection methods of these components are exactly the same. The difference is that the single-ended pipe 201 is only provided with the second support plate 202, the second moving part 204, and the second sealing part 205 on one side, while the other side of the single-ended pipe 201 is set as an open pipe, which can be connected to the gas-insulated metal-enclosed switchgear by welding.

[0040] It should be noted that through holes are also provided on the second support plate 202 and the second seal 205.

[0041] In summary, the internal threaded pipe 206 can be connected to the external threaded pipe 101-3, so that the single-ended pipe fitting 201 can be connected to the double-ended pipe body 101-1. After the airflow passes through the double-ended pipe body 101-1 and flows into the single-ended pipe fitting 201, it will flow through the through holes on the second support plate 202 and the second sealing member 205 to the other end of the single-ended pipe fitting 201. At this time, the gas can flow into the gas-insulated metal-enclosed switchgear.

[0042] As an optional embodiment, an electrical equipment charging valve is provided that can be directly replaced without affecting the operation of the power equipment.

[0043] The first adjustment assembly 100 includes a double-ended pipe 101, a first movable member 102 disposed on the inner wall of the double-ended pipe 101, and a first sealing member 103 disposed on the outer wall of the first movable member 102; and a second adjustment assembly 200 connected to one side of the first adjustment assembly 100, including a single-ended pipe 201, a second movable member 204 slidably connected to the inner wall of the single-ended pipe 201, and a second sealing member 205 disposed on the outer wall of the second movable member 204. When maintenance is required, the double-ended pipe 101 is unscrewed, causing the first movable member 102 and the second movable member 204 to gradually separate, so that the second movable member 204 blocks the end of the single-ended pipe 201 again. At this time, the second adjustment assembly 200 can seal the gas-insulated metal-enclosed switchgear, thus ensuring gas tightness while allowing free replacement of the equipment.

[0044] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A gas-insulated metal-enclosed electrical equipment charging valve, characterized in that: include, The first adjustment assembly (100) includes a double-ended pipe fitting (101), a first movable member (102) disposed on the inner wall of the double-ended pipe fitting (101), and a first sealing member (103) disposed on the outer wall of the first movable member (102); and, The second adjustment component (200) connected to one side of the first adjustment component (100) includes a single-ended pipe (201), a second moving part (204) slidably connected to the inner wall of the single-ended pipe (201), and a second sealing part (205) disposed on the outer wall of the second moving part (204).

2. The gas-insulated metal-enclosed electrical equipment charging valve according to claim 1, characterized in that: The double-ended pipe fitting (101) includes a double-ended pipe body (101-1), a tapered pipe (101-2) disposed on the top of the double-ended pipe body (101-1), an externally threaded pipe (101-3) disposed on the outer wall of the tapered pipe (101-2), a first support plate (101-4) disposed on the inner wall of the double-ended pipe body (101-1), and a first sleeve (101-6) disposed on one side of the first support plate (101-4).

3. The gas-insulated metal-enclosed electrical equipment charging valve according to claim 2, characterized in that: The first moving member (102) includes a moving rod (102-1), a fixed rod (102-2) disposed at the top of the moving rod (102-1), and an elastic member (102-3) disposed at the bottom of the fixed rod (102-2).

4. The gas-insulated metal-enclosed electrical equipment charging valve according to claim 3, characterized in that: The outer wall of the moving rod (102-1) is slidably connected to the inner wall of the tapered tube (101-2), the bottom of the moving rod (102-1) is slidably connected to the inner wall of the first sleeve (101-6), and the elastic element (102-3) is disposed on the inner wall of the first sleeve (101-6).

5. The gas-insulated metal-enclosed electrical equipment charging valve according to claim 4, characterized in that: The first sealing element (103) includes a tapered sealing tube (103-1) and a first sealing ring (103-2) disposed on one side of the tapered sealing tube (103-1).

6. The gas-insulated metal-enclosed electrical equipment charging valve according to claim 5, characterized in that: The outer wall of the conical sealing tube (103-1) is connected to the outer wall of the moving rod (102-1), and the outer wall of the conical sealing tube (103-1) is attached to the inner wall of the conical tube (101-2).

7. The gas-insulated metal-enclosed electrical equipment charging valve according to claim 6, characterized in that: The inner wall of the double-ended tube body (101-1) is provided with a second sealing ring (101-7), and the outer wall of the second sealing ring (101-7) is in contact with the outer wall of the first sealing ring (103-2).

8. The gas-insulated metal-enclosed electrical equipment charging valve according to claim 7, characterized in that: The first support plate (101-4) has a first through hole (101-5) on one side, and the tapered sealing tube (103-1) has a second through hole (103-3) on its outer wall.

9. The gas-insulated metal-enclosed electrical equipment charging valve according to claim 8, characterized in that: The inner wall of the single-ended pipe fitting (201) is provided with a second support plate (202), and a second sleeve (203) is provided on one side of the second support plate (202). The bottom of the second moving part (204) is slidably connected to the inner wall of the second sleeve (203).

10. The gas-insulated metal-enclosed electrical equipment charging valve according to claim 9, characterized in that: The outer wall of the second sealing element (205) is attached to the inner wall of the single-ended pipe (201). The outer wall of the single-ended pipe (201) is provided with an internally threaded pipe (206). The inner wall of the internally threaded pipe (206) is threadedly connected to the outer wall of the externally threaded pipe (101-3).

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