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Device and method for detecting and testing airtightness of SF6 of GIS equipment irregular flange

A technology of air tightness detection and test equipment, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, etc., can solve the problems of low safety factor and reliability, complicated and time-consuming partial bandaging, etc., to improve personal safety factor, The effect of various products and dead corners that are not easy to leak

Active Publication Date: 2015-03-04
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, in view of the above-mentioned traditional partial bandaging method, which is complicated and time-consuming, and has low safety factor and reliability, it is necessary to propose a GIS equipment irregular flange SF that can improve production efficiency, reduce safety risks, and improve bandaging reliability. 6 Air tightness testing device and method

Method used

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  • Device and method for detecting and testing airtightness of SF6 of GIS equipment irregular flange
  • Device and method for detecting and testing airtightness of SF6 of GIS equipment irregular flange
  • Device and method for detecting and testing airtightness of SF6 of GIS equipment irregular flange

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Embodiment 1

[0038] Such as Figure 1 to Figure 3 As shown, this embodiment proposes a GIS equipment terminal flange SF 6 The air tightness detection test device includes the GIS equipment terminal flange 110, the terminal flange film cover 120 covered on the GIS equipment terminal flange 110, and makes the terminal flange film cover 120 and the GIS equipment terminal flange 110 Keep a 5mm gap, and keep a certain gap between the two to facilitate the formation of a gas storage chamber to collect SF leaked from the GIS equipment terminal flange 6 gas. In addition, the terminal flange film cover 120 is made of industrially produced single-layer linear low-density polyethylene film material, which is low in cost, designed for one-time use, simple and convenient, and highly scalable.

[0039] The terminal flange film cover 120 includes a cylindrical terminal flange film body, and an open end 122 and a closed end 124 respectively arranged on two sides of the terminal flange film body. The te...

Embodiment 2

[0049] Such as Figure 4 to Figure 6 As shown, this embodiment proposes a GIS equipment transition flange SF 6 The air tightness detection test device comprises a GIS equipment transition flange 210, a transition flange membrane cover 220 covering the GIS equipment transition flange 210, and a gap between the transition flange membrane cover 220 and the GIS equipment transition flange 210. Keep a gap of 5mm, and keep a certain gap between the two to facilitate the formation of a gas storage chamber to collect the SF leaked from the transition flange 210 of the GIS equipment 6 gas. In addition, the transition flange film cover 220 is made of industrially produced single-layer linear low-density polyethylene film material, which is low in cost, designed for one-time use, simple and convenient, and highly scalable.

[0050] Furthermore, the GIS equipment transition flange 210 includes a transition flange first portion 212 and a transition flange second portion 214 . The transi...

Embodiment 3

[0060] Such as Figure 7 to Figure 9 As shown, this implementation proposes a GIS equipment irregular flange SF 6 The air tightness detection test device comprises an irregular flange 310 of GIS equipment with gradually smaller diameter, an irregular flange film cover 320 covering the irregular flange 310 of GIS equipment, and making the irregular flange film cover Keep a 5mm gap between 320 and the irregular flange 310 of the GIS equipment, and keep a certain gap between the two to facilitate the formation of a gas storage chamber to collect the SF leaked from the irregular flange 310 of the GIS equipment 6 gas. In addition, the irregular flange film cover 320 is made of industrially produced single-layer linear low-density polyethylene film material, which is low in cost, designed for one-time use, simple and convenient, and highly scalable. In addition, the irregular flange 310 of the GIS equipment can also be set such that the diameter gradually increases from small to l...

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Abstract

The invention discloses a device and a method for detecting and testing the airtightness of SF6 of a GIS equipment irregular flange. The device comprises a GIS equipment irregular flange of which the diameter is gradually reduced, an irregular flange film cover which covers the GIS equipment irregular flange, and an air leakage detector used for detecting the density of SF6 gas in the irregular flange film cover, wherein the irregular flange film cover comprises an irregular flange film main body, a large open end and a small open end which are respectively arranged on the two sides of the irregular flange film main body, and at least one middle end arranged in the middle of the irregular flange film main body; binding ropes respectively penetrate through the edges of the large and small open ends and the middle end and are used for tightly binding the large open end, the small open end and the middle end on the GIS equipment irregular flange. The device and the method disclosed by the invention can greatly improve the binding efficiency, reduce the difficulty in binding, reduce the labor strength and improve the accuracy of an airtightness test. Moreover, the production cost is low, and diversified products are realized due to the design of a finished product.

Description

technical field [0001] The invention relates to the technical field of GIS equipment detection, in particular to a GIS equipment irregular flange SF 6 Air tightness testing device and method. Background technique [0002] With the rapid development of industrial technology, Gas Insulated Switchgear (GIS) has been widely used in power systems due to its small footprint and high reliability. The working environment of GIS equipment is required to be dust-free and sealed, so the corresponding installation and testing requirements are getting higher and higher. [0003] Relevant standards stipulate that this kind of by SF 6 For gas-filled GIS equipment, SF must be carried out during the handover test after the first installation and the routine test after the overhaul. 6 Air tightness leak test. The local bandaging method is simple in principle and strong in operability, and has now become a commonly used SF method. 6 Air-tight leak detection method, the principle is as fol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/02
Inventor 刘威葳周哲曾文斐陈远军
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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