Gas chromatography device for detecting sulfuryl fluoride in sulfur hexafluoride decomposition product

A gas chromatographic device, sulfur hexafluoride technology, applied in the field of gas chromatographic devices for detection of sulfuryl fluoride, the decomposition product of sulfur hexafluoride, can solve the problems of inaccurate quantification, low sensitivity, and poor separation, and achieve accurate Separate and improve the effect of accurate detection

Active Publication Date: 2013-12-25
STATE GRID CORP OF CHINA +1
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Problems solved by technology

But due to the SF in the sample gas 6 as the background gas, SO 2 f 2 Concentration is very low, while Porapak QS column 6 , SO 2 f 2 The separation of the two components is not good, SF 6 The chromatographic peak is

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  • Gas chromatography device for detecting sulfuryl fluoride in sulfur hexafluoride decomposition product

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Embodiment Construction

[0019] The core of the invention is to provide a gas chromatography device for detecting sulfuryl fluoride, a decomposition product of sulfur hexafluoride, so as to improve the accurate detection of sulfuryl fluoride.

[0020] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Please refer to figure 1 , figure 1 A schematic structural diagram of a gas chromatography device for detecting sulfuryl fluoride, a decomposition product of sulfur hexafluoride, provided in an embodiment of the present invention.

[0022] A chromatographic column is a column tube with a stationary phase inside to separate mixtures, and its detailed name is different according to the filling in the column tube, such as Porapak QS chromatographic column and Gaspro chromatographic column, both of which are exis...

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Abstract

The invention discloses a gas chromatography device for detecting sulfuryl fluoride in a sulfur hexafluoride decomposition product. The gas chromatography device comprises a sulfur hexafluoride separation device, a capillary column sampling device, a Gaspro chromatographic column, a micro-plate flow path control valve and a second sulfide detector, wherein the capillary column sampling device comprises a first inlet, a second inlet and a first outlet which are communicated with one another; the second inlet is communicated with the sulfur hexafluoride separation device; auxiliary gas is fed through the first inlet; the micro-plate flow path control valve comprises a third inlet, a second outlet and a third outlet; the Gaspro chromatographic column is respectively communicated with the first outlet and the third inlet; the second sulfide detector is communicated with the second outlet. The gas chromatography device for detecting the sulfuryl fluoride in the sulfur hexafluoride decomposition product, provided by the invention, can be used for accurately detecting the sulfuryl fluoride.

Description

technical field [0001] The invention relates to the technical field of detection of sulfur hexafluoride decomposition products, in particular to a gas chromatography device for detecting sulfuryl fluoride, a decomposition product of sulfur hexafluoride. Background technique [0002] SO 2 f 2 It is one of the decomposition products of sulfur hexafluoride gas, SO 2 f 2 The Chinese name is sulfuryl fluoride, which is one of the important parameters for fault judgment of sulfur hexafluoride electrical equipment. Accurate detection of decomposition products can improve the accuracy of equipment fault judgment and discover latent faults inside the equipment in advance. Inaccurate quantification and low detection sensitivity will lead to inaccurate characterization of equipment failure properties. [0003] At present, the general process of gas chromatography analysis of sulfur hexafluoride and its decomposition products is as follows: the sample gas enters the quantitative loo...

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Application Information

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IPC IPC(8): G01N30/88
Inventor 姚强伏进邱妮苗玉龙钱丽张继菊
Owner STATE GRID CORP OF CHINA
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