Visual monitoring method and system for concentration of SF6 gas in GIS (gas insulated substation) chamber

A gas concentration and monitoring system technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of low accuracy and incomplete detection results, and achieve the effect of improving the monitoring level and high detection accuracy

Active Publication Date: 2014-04-02
GUANGDONG POWER GRID CO LTD CHAOZHOU POWER SUPPLY BUREAU +1
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Problems solved by technology

Although SF6 is heavier than air, in addition to downward diffusion, it can also form a phenomenon of diffusion to the surrounding and climbing slopes according to the terrain, so the traditional technology cannot fully represent the SF6 gas concentration distribution in the GIS room, and its detection results are not comprehensive and the accuracy is relatively low. Low

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  • Visual monitoring method and system for concentration of SF6 gas in GIS (gas insulated substation) chamber
  • Visual monitoring method and system for concentration of SF6 gas in GIS (gas insulated substation) chamber
  • Visual monitoring method and system for concentration of SF6 gas in GIS (gas insulated substation) chamber

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Embodiment Construction

[0019] The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but the implementation mode of the present invention is not limited thereto.

[0020] Such as figure 1 Shown is a schematic flow diagram of a GIS chamber SF6 gas concentration visualization monitoring method of the present invention, comprising the following steps:

[0021] S11. Collect the SF6 gas concentration through a plurality of monitoring points preset in the GIS room, wherein the monitoring points have multiple groups, each group has 8, and each group of 8 monitoring points constitutes a cube monitoring area;

[0022] Such as figure 2 As shown, it is a schematic diagram of a cube and monitoring points. Each monitoring point is the apex of the cube, and every 8 monitoring points constitute a cube; the number of cubes and the setting positions can be preset by professionals. The result will be more accurate;

[0023] Among them, four cubes are pr...

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Abstract

The invention provides a visual monitoring method for concentration of SF6 gas in a GIS (gas insulated substation) chamber. The method comprises the following steps: collecting the SF6 gas concentration through multiple groups of preset monitoring sites in the GIS chamber, wherein each group includes eight monitoring sites, and the eight monitoring sites in each group form a cubic monitoring region; calculating each cubic SF6 gas concentration distribution field according to the SF6 gas concentration of each monitoring site; expanding each cubic SF6 gas concentration distribution field to fill the whole GIS chamber so as to obtain the SF6 gas concentration distribution field of the GIS chamber; monitoring the concentration of SF6 gas in the GIS chamber according to the concentration distribution field of SF6 gas in the GIS chamber. The invention further provides a visual monitoring system which can be used for comprehensively monitoring the concentration of SF6 gas in the whole GIS chamber and is high in accuracy.

Description

technical field [0001] The invention relates to the technical field of SF6 gas detection, in particular to a method for visually monitoring SF6 gas concentration in a GIS room and a system for visually monitoring SF6 gas concentration in a GIS room. Background technique [0002] SF6 gas itself is a gas with excellent insulating properties, its breakdown field strength is about three times that of air, and its arc extinguishing performance is excellent, so a large number of equipment in GIS use SF6 gas as insulation. In GIS, the leakage of SF6 will greatly reduce the insulation performance of GIS and endanger the reliability of equipment; in addition, SF6 gas will decompose under the action of high-voltage arc and produce toxic gas. When SF6 gas contacts with water, it will also The toxic substances that will be produced will endanger the personal health of operation and maintenance personnel. [0003] The traditional detection of SF6 gas concentration generally adopts the m...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 成可苗陈健新吴添权吴文锐成祥茂严树权王志浩王俏华
Owner GUANGDONG POWER GRID CO LTD CHAOZHOU POWER SUPPLY BUREAU
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