GIS end cover and GIS mutual inductor equipment

Abstract

The utility model relates to an end cover for a GIS and GIS mutual inductor equipment, and belongs to the field of mutual inductor equipment. According to the technical scheme, the end cover for the GIS comprises an end cover body, and the end cover body is provided with an adsorbent mounting hole located in the bottom face of the end cover body; the anti-explosion piece air channel penetrates through the end cover main body, and anti-explosion piece mounting holes are formed in the periphery of the anti-explosion piece air channel; an inflation hole is formed in the inflation valve mounting seat, and the inflation hole penetrates through the end cover main body. According to the scheme, the explosion-proof sheet, the adsorbent box and the inflation valve mounting seat are integrated on the end cover of the GIS equipment as a whole, so that the structure of a device body is greatly simplified, and meanwhile, each part is more convenient to disassemble, assemble and maintain.

Description

Technical Field

[0001] This utility model relates to the field of current transformer equipment, and in particular to an end cap for GIS and a GIS current transformer device. Background Technology

[0002] GIS, a complete set of switchgear that combines circuit breakers, disconnectors, grounding switches, current transformers, voltage transformers, surge arresters, busbars, incoming and outgoing bushings or cable terminals, etc., enclosed in a grounded metal shell and filled with SF6 (sulfur hexafluoride) gas at a certain pressure as the insulating medium, has been widely used in electrical systems due to its advantages of simple structure and high reliability.

[0003] As GIS equipment operates for extended periods, users have increasingly higher requirements for it. In addition to ensuring safe and stable operation, users also demand convenient maintenance and repair. This necessitates that each GIS gas chamber be equipped with an adsorbent, explosion-proof disc, and inflation valve. The adsorbent effectively removes impurities that may have entered the equipment, improves its insulation performance, and reduces harmful substances such as low-fluoride compounds produced by the decomposition of SF6 gas under electric arc, thus minimizing corrosion of internal materials. The explosion-proof disc provides a rapid and safe pressure release pathway when internal pressure rises abnormally, preventing explosions or structural damage due to excessive pressure. The inflation valve controls and manages the filling and pressure maintenance of SF6 gas during installation, maintenance, and operation.

[0004] Currently, the aforementioned adsorbents, explosion-proof sheets, and inflation valves are mostly designed in different locations within the transformer body, resulting in a complex transformer body structure, high manufacturing and assembly costs, and some components located inside the body, making maintenance and disassembly inconvenient. Summary of the Invention

[0005] This utility model addresses the problem that current GIS instrument transformers have explosion-proof devices and other components distributed on the transformer body, resulting in a complex structure and inconvenient maintenance. It provides an end cover for GIS.

[0006] To address the aforementioned problems, the present invention provides a technical solution for an end cap used in GIS equipment. The end cap body includes: an adsorbent mounting hole located on its bottom surface; an explosion-proof gas channel penetrating the end cap body, with the explosion-proof gas channel having an explosion-proof mounting hole on its outer periphery; and an inflation valve mounting seat with an inflation hole penetrating the end cap body. This solution integrates the explosion-proof gasket, adsorbent box, and inflation valve mounting seat onto the end cap of the GIS equipment, allowing for a unified installation. This significantly simplifies the structure of the device and makes disassembly and maintenance of each component more convenient.

[0007] As a preferred implementation of the end cap for GIS applications, the adsorbent mounting holes are provided in a plurality of circular arrangement. The adsorbent box is installed using a flange type, ensuring a firm and stable installation.

[0008] As a preferred implementation of the end cap for GIS applications, the outer periphery of the explosion-proof gas duct is provided with an explosion-proof gas duct mounting sealing groove. This improves the sealing performance of the explosion-proof gas duct installation.

[0009] As a preferred implementation of an end cap for GIS applications, the explosion-proof plate has multiple mounting holes arranged around its gas passage. The explosion-proof plate uses a flange-type installation, resulting in high connection strength and good sealing performance.

[0010] As a preferred implementation of an end cap for GIS, the inflation valve mounting base is provided with an inflation valve mounting hole.

[0011] In a preferred embodiment of the end cap for GIS applications, the coverage area of ​​the adsorbent mounting hole partially overlaps with the coverage area of ​​the explosion-proof disc mounting hole; the coverage area of ​​the adsorbent mounting hole is located outside the explosion-proof disc's air passage. The partial overlap between the adsorbent box's mounting area and the explosion-proof disc's mounting area reduces the size of the end cap while ensuring that the adsorbent box does not obstruct the explosion-proof disc's air passage after installation.

[0012] On the other hand, this utility model also provides a GIS current transformer device, including a body, on which the above-mentioned GIS end cap is installed.

[0013] As a preferred implementation of a GIS current transformer device, the outer periphery of the end cover body of the GIS end cover is provided with multiple flange holes, and the end cover body is connected and fixed to the transformer body through the flange holes; the bottom surface of the end cover body is also provided with an end cover flange sealing groove.

[0014] As a preferred implementation of a GIS instrument transformer, the end cover flange sealing groove is located inside the circle formed by the flange holes. Providing the end cover flange sealing groove further improves the overall sealing performance of the instrument transformer after the end cover is installed.

[0015] As can be seen from the above technical solutions, the advantages of this utility model are as follows: Integrating the explosion-proof sheet, adsorbent box, and inflation valve mounting base onto the end cover of the GIS equipment greatly simplifies the device structure, making component disassembly and maintenance more convenient; multiple circumferentially arranged adsorbent mounting holes and flange-type installation ensure the adsorbent box's firmness and stability; the sealing groove on the outer periphery of the explosion-proof sheet's air passage and multiple surrounding explosion-proof sheet mounting holes improve the sealing performance and connection strength of the explosion-proof sheet installation; the inflation valve mounting base design facilitates inflation operations; the partial overlap between the adsorbent mounting holes and the explosion-proof sheet mounting holes reduces the end cover size and ensures that the adsorbent box does not obstruct the explosion-proof sheet's air passage; regarding the GIS instrument transformer equipment, the outer periphery of the end cover body is provided with multiple flange holes, which are used to connect and fix it to the device body, and the end cover flange sealing groove is located inside the circle formed by the flange holes, further improving the overall sealing performance of the instrument transformer after installation. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0018] Explanation of main figure symbols

[0019] 1. End cap body, 2. End cap flange sealing groove, 3. Adsorbent mounting hole, 4. Inflation valve mounting seat, 5. Inflation hole, 6. Inflation valve mounting hole, 7. Explosion-proof disc mounting hole, 8. Explosion-proof disc air passage, 9. Explosion-proof disc mounting sealing groove. Detailed Implementation

[0020] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0021] Example 1

[0022] like Figure 1 As shown, an end cap for GIS includes an end cap body 1, which has an adsorbent mounting hole 3, an explosion-proof gas channel 8, and an inflation valve mounting seat 4. Specifically:

[0023] The adsorbent mounting holes 3 are located on the bottom surface of the end cap body 1 and are provided in multiple ways, with the multiple adsorbent mounting holes 3 arranged in a circular pattern.

[0024] An explosion-proof gas channel 8 extends through the end cap body 1. Multiple explosion-proof gas channels 7 are provided around the outer periphery of the explosion-proof gas channel 8. An explosion-proof gas channel 8 also has an explosion-proof gas channel mounting sealing groove 9 on its outer periphery. Furthermore, the coverage area of ​​the adsorbent mounting hole 3 partially overlaps with the coverage area of ​​the explosion-proof gas channel 7; the coverage area of ​​the adsorbent mounting hole 3 is located outside the explosion-proof gas channel 8.

[0025] An inflation valve mounting base 4 is provided with an inflation hole 5 and an inflation valve mounting hole 6, wherein the inflation hole 5 penetrates the end cap body 1.

[0026] Example 2

[0027] This embodiment further provides a GIS current transformer device, including a transformer body, on which a GIS end cover provided in Embodiment 1 is installed. The end cover body 1 of the GIS end cover has multiple flange holes on its outer periphery, and the end cover body 1 is connected and fixed to the transformer body through the flange holes. The bottom surface of the end cover body 1 is also provided with an end cover flange sealing groove 2, which is located inside the circle formed by the flange holes.

[0028] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: This solution greatly simplifies the structure of the device by integrating the explosion-proof sheet, adsorbent box, and inflation valve mounting seat onto the end cover of the GIS equipment, making the disassembly and maintenance of components more convenient; multiple circumferentially arranged adsorbent mounting holes and flange-type installation ensure the firmness and stability of the adsorbent box; the sealing groove on the outer periphery of the explosion-proof sheet gas passage and multiple surrounding explosion-proof sheet mounting holes improve the sealing performance and connection strength of the explosion-proof sheet installation; the design of the inflation valve mounting seat facilitates inflation operation; the partial overlap between the adsorbent mounting holes and the explosion-proof sheet mounting holes reduces the size of the end cover and ensures that the adsorbent box does not obstruct the explosion-proof sheet gas passage; in terms of the GIS instrument transformer equipment, the outer periphery of the end cover body is provided with multiple flange holes, which are used to connect and fix it to the device body, and the end cover flange sealing groove is located inside the circle formed by the flange holes, further improving the sealing performance of the instrument transformer after overall installation.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily 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 is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An end cover for a GIS, comprising an end cover main body (1), characterized in that, The end cap body (1) is provided with: The adsorbent mounting hole (3) is located on the bottom surface of the end cap body (1); An explosion-proof gas channel (8) is provided on the outer periphery of the end cap body (1). An inflation valve mounting base (4) is provided with an inflation hole (5), which penetrates the end cap body (1).

2. The end cap for a GIS of claim 1, wherein, The adsorbent mounting holes (3) are provided in multiple ways, and the multiple adsorbent mounting holes (3) are arranged in a circular pattern.

3. The end cap for a GIS of claim 1, wherein, The outer periphery of the explosion-proof gas channel (8) is provided with an explosion-proof installation sealing groove (9).

4. The end cap for a GIS of claim 1, wherein, The explosion-proof plate mounting holes (7) are provided in multiple ways, and the multiple explosion-proof plate mounting holes (7) are arranged around the explosion-proof plate air passage (8).

5. The end cap for a GIS of claim 1, wherein, The inflation valve mounting base (4) is provided with an inflation valve mounting hole (6).

6. The end cap for a GIS of claim 1, wherein, The coverage area of ​​the adsorbent mounting hole (3) partially overlaps with the coverage area of ​​the explosion-proof plate mounting hole (7); the coverage area of ​​the adsorbent mounting hole (3) is located outside the explosion-proof plate air passage (8).

7. A GIS transformer device, characterized by It includes a body, on which an end cap for GIS as described in any one of claims 1-6 is installed.

8. The GIS instrument transformer device according to claim 7, characterized in that, The end cap body (1) of the GIS end cap has multiple flange holes on its outer periphery, and the end cap body (1) is connected and fixed to the device body through the flange holes; the bottom surface of the end cap body (1) is also provided with an end cap flange sealing groove (2).

9. The GIS transformer device of claim 8, wherein, The end cover flange sealing groove (2) is located inside the circle enclosed by the flange hole.

Images