Quantitative Detection of SO2,H2S and CS2 Gas Mixture Based on UV Absorption Spectrometry and Least Squares Algorithm

MA Yong; XIAO Hanyan; DING Ran; HU Chengbo; CHEN Shaobo; ZHAO Ke; LIU Yuan

doi:10.13296/j.1001-1609.hva.2021.03.024

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Quantitative Detection of SO₂,H₂S and CS₂ Gas Mixture Based on UV Absorption Spectrometry and Least Squares Algorithm

更新时间：2025-04-26

- Quantitative Detection of SO₂,H₂S and CS₂ Gas Mixture Based on UV Absorption Spectrometry and Least Squares Algorithm
- High VoltageApparatus Vol. 57, Issue 3, Pages: 157-165(2021)
- 作者机构：
  
  1. 国网江苏省电力有限公司电力科学研究院GIS设备运维检修技术实验室
  2. 国网江苏省电力有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.03.024
  CLC： TM213
- Published：2021
- 稿件说明：
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[1]马勇,肖焓艳,丁然,胡成博,陈少波,赵科,刘媛.基于紫外吸收光谱与最小二乘法的SO_2、H_2S与CS_2混合气体定量检测[J].高压电器,2021,57(03):157-165.

MA Yong, XIAO Hanyan, DING Ran, et al. Quantitative Detection of SO₂,H₂S and CS₂ Gas Mixture Based on UV Absorption Spectrometry and Least Squares Algorithm[J]. High voltageapparatus, 2021, 57(3): 157-165.
[1]马勇,肖焓艳,丁然,胡成博,陈少波,赵科,刘媛.基于紫外吸收光谱与最小二乘法的SO_2、H_2S与CS_2混合气体定量检测[J].高压电器,2021,57(03):157-165. DOI： 10.13296/j.1001-1609.hva.2021.03.024.

MA Yong, XIAO Hanyan, DING Ran, et al. Quantitative Detection of SO₂,H₂S and CS₂ Gas Mixture Based on UV Absorption Spectrometry and Least Squares Algorithm[J]. High voltageapparatus, 2021, 57(3): 157-165. DOI： 10.13296/j.1001-1609.hva.2021.03.024.

摘要

、CS

和H

S作为绝缘气体SF

的重要分解气体

它们的种类和含量对SF

气体绝缘设备的诊断具有重要意义。文中提出了一种紫外吸收光谱法和最小二乘拟合联用的方法用于SF

分解气体的3组分混合气体定量检测。在实验过程中

发现较高体积分数的SO

和CS

对较低体积分数H

S的体积分数计算存在干扰并且干扰的程度大小与两种气体的体积分数呈正相关。因此

文中获得了干扰气体体积分数较高时H

S体积分数计算的修正公式

可以实现3种气体的准确定量检测

和H

S检测范围为1～10μL/L（part permillion）

为30～300μg/m L（part per billion）。文中提供了一种简便高效的检测方法

方便集成于检测设备中

为SF

绝缘设备在线监测提供了技术支撑。

Abstract

The type and contents of SO

and H

the important decomposition gases of SF

-the insulationgas

are of great significance for the diagnosis of SF

gas insulated equipment.In this paper

a method combiningUV absorption spectrometry and least square fitting is proposed for the quantitative detection of three componentgas mixture of SF

decomposed gas.During the experiment period

it is found that interference is existed in volumefraction calculation between the SO

and CS

with higher volume fraction and H

S with lower volume fraction

andthe degree of interference is positively related with the volume fraction of the two gases.Therefore

in this paper thecorrection formula of H

S volume fraction calculation at high volume fraction of interference gas is obtained so toachieve accurate quantitative detection of the three types of gases.The detection range of SO

and H

S is 1～10μL/L（part per million）and that of CS

is 30～300μg/m L（part per billion）.A simple and efficient detection method isprovided in this paper

which is convenient to be integrated into the detection equipment and provides technical sup-port for the online monitoring of SF

insulated equipment.

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