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Device for detecting concentration of SF6 in GIS pipeline off line

An off-line detection, SF6 technology, applied in measurement devices, material analysis through optical means, instruments, etc., can solve the problems of environmental hazards, high greenhouse effect index, high liquefaction temperature, and achieve the effect of ensuring accuracy and reducing costs.

Active Publication Date: 2014-08-27
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However SF 6 It is a heavy gas with a large molecular weight and a high liquefaction temperature, so it is not suitable for alpine regions; SF 6 Under the high temperature of the arc, it is possible to generate SO 2 Corrosive substances such as SOF 2 and other highly toxic substances; SF 6 The electric strength of the gas is susceptible to a sharp drop due to the influence of non-uniform electric field conductive particles and the surface roughness of the electrode; SF 6 It is very harmful to the environment, and its greenhouse effect index GWP (global warming potential) is very high, about CO 2 30,000 times

Method used

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  • Device for detecting concentration of SF6 in GIS pipeline off line
  • Device for detecting concentration of SF6 in GIS pipeline off line
  • Device for detecting concentration of SF6 in GIS pipeline off line

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Embodiment Construction

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0034] figure 1 It shows the SF in a GIS pipeline provided by the present invention 6 Concentration offline detection device, including light source module, gas tank module and signal analysis module;

[0035] 1. The light source module includes an infrared light source, a filter and a beam splitter;

[0036] The infrared light source is used to emit infrared light with a wavelength of 1-20 μm;

[0037] The filter is a filter with a central wavelength of 10.6 μm, which is used to filter the above-mentioned infrared light to ob...

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Abstract

The invention provides a device for detecting concentration of SF6 in a GIS pipeline off line. The device comprises a light source module and a signal analysis module which are respectively connected with a gas tank module, wherein the gas tank module comprises a standard tank and a sampling tank which are used for storing a standard SF6 mixed gas and a to-be-tested SF6 mixed gas, respectively; the light source module is used for emitting infrared light to the gas tank module; the signal analysis module is used for analyzing the concentration of the to-be-tested SF6 mixed gas in the sampling tank according to an infrared light signal and an SF6 gas database. Compared with the prior art, the device provided by the invention can be used for accurately measuring the concentration of SF6 in the GIS pipeline, and is simple in operation and high in reliability.

Description

technical field [0001] The invention relates to an off-line detection device for gas concentration, in particular to a SF in a GIS pipeline 6 Concentration off-line detection device. Background technique [0002] SF 6 Gas is widely used in the high-voltage electrical industry due to its strong electronegative properties, high thermal conductivity, excellent physical and chemical properties, and insulation and arc-extinguishing properties. It is mainly used in high-voltage circuit breakers, closed combination appliances, bus ducts, etc. Transformers, surge arresters. However SF 6 It is a heavy gas with a large molecular weight and a high liquefaction temperature, so it is not suitable for alpine regions; SF 6 Under the high temperature of the arc, it is possible to generate SO 2 Corrosive substances such as SOF 2 and other highly toxic substances; SF 6 The electric strength of the gas is susceptible to a sharp drop due to the influence of non-uniform electric field con...

Claims

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Application Information

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IPC IPC(8): G01N21/3518
Inventor 王欢项琼汪本进王晓琪李璿徐思恩岳长喜刘浩朱凯
Owner STATE GRID CORP OF CHINA
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