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Method for optically detecting concentration of C5F10O mixed gas

A mixed gas and optical detection technology, which is applied in the direction of color/spectral characteristic measurement, can solve problems such as concentration difficulties, achieve great application value, and ensure safe and stable operation

Inactive Publication Date: 2021-03-09
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention overcomes the acquisition of C in the prior art 5 f 10 O concentration is more difficult problem, proposed a method using optical detection C 5 f 10 O concentration method to overcome the above drawbacks

Method used

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  • Method for optically detecting concentration of C5F10O mixed gas
  • Method for optically detecting concentration of C5F10O mixed gas

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Experimental program
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Effect test

Embodiment 1

[0029] a C 5 f 10 The method for optical detection of O mixed gas concentration mainly comprises the following steps:

[0030] 1) Cleaning, clean the experimental gas absorption cell with pure nitrogen, see the attached gas absorption cell model figure 1 . The gas absorption cell includes a housing, an air inlet, an air outlet, a light inlet, and a light outlet. The inside of the housing is a cavity, and there is a reflective lens inside the cavity. The light enters the cavity from the light inlet and passes through the mirror for many times. After reflection, it is emitted at the light outlet. A collimating lens is installed at the light inlet and the light outlet to focus the light emitted by the light source, and it is cleaned with pure nitrogen for at least 3 times to ensure that there is no interference from other gas impurities in the gas absorption cell.

[0031] 2) Obtain the standard spectrum and obtain the C of different standard concentrations 5 f 10 O gas ultr...

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Abstract

The invention discloses a method for optically detecting the concentration of C5F10O mixed gas, and particularly relates to a method for detecting the concentration of an insulating medium, namely theC5F10O mixed gas used in environment-friendly SF6 substitute gas electrical insulation equipment. The method mainly comprises the following steps of: 1) cleaning: cleaning an experimental gas absorption device by using pure nitrogen; 2) acquisition of a standard spectrum; 3) extraction of characteristic values; 4) concentration inversion; 5) detection; and 6) result inversion. The method can quickly and efficiently detect the concentration of the environment-friendly gas insulating medium C5F10O mixed gas, can quickly detect the concentration of C5F10O in the equipment in the maintenance process of equipment, is used for monitoring whether the concentration of C5F10O is reduced due to air leakage or decomposition of the equipment, guarantees safe and stable operation of power equipment, and has high engineering practical application values.

Description

technical field [0001] The present invention relates to a C 5 f 10 Method for optical detection of O mixed gas concentration, especially involving environment-friendly SF 6 An insulating medium used in alternative gas electrical insulation equipment—C 5 f 10 O mixed gas concentration detection. Background technique [0002] Sulfur hexafluoride (SF 6 ) has excellent arc extinguishing and insulation properties, and is widely used in various gas-insulated high-voltage equipment, but because of its extremely strong greenhouse effect (GWP value is 23,500 times that of carbon dioxide), it is listed as a greenhouse gas with restricted emissions One, there is an urgent need to find new environmentally friendly insulating gases to replace SF 6 as an insulating medium. Among them, C 5 f 10 The insulating property of O is SF 6 Twice of that, the GWP value is about 1. It has good insulation performance and environmental protection performance and can be used as an insulation m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31G01N21/33
CPCG01N21/31G01N21/33
Inventor 肖淞李祎李亚龙张晓星唐炬夏亚龙
Owner WUHAN UNIV
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