一种基于低温富集—紫外荧光法的微量SO<sub>2</sub>检测装置研制

季严松; 袁帅; 毕建刚; 王承玉; 刘钊; 杨圆

doi:10.13296/j.1001-1609.hva.2026.06.023

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一种基于低温富集—紫外荧光法的微量SO₂检测装置研制

研究与分析 | 更新时间：2026-06-25

- 一种基于低温富集—紫外荧光法的微量SO₂检测装置研制
- Development of SO₂ Trace Gas Detection Device Based on Low-temperature Enrichment and Ultraviolet Fluorescence
- 高压电器 2026年62卷第6期页码：186-190
- 作者机构：
  
  中国电力科学研究院有限公司，北京 100192
  国网河北省电力有限公司保定供电分公司，河北保定 071000
- 作者简介：
  
  季严松（1978—），男，硕士，正高级工程师，主要从事高压开关设备状态检测方面的研究工作（通信作者）（E-mail ：jiys@epri.sgcc.com.cn）。
  袁帅（1980—），男，博士，教授级高工，主要从事变电设备在线监测与故障诊断、状态检修（E-mail：yuans@epri.sgcc.com.cn）。
  毕建刚（1977—），男，硕士，教授级高工，主要从事变电设备在线监测与故障诊断、状态检修（E-mail：bijg@epri.sgcc.com.cn）。
  王承玉（1963—），男，博士，教授级高工，研究方向为高压开关设备运行技术、产品研制（E-mail：cywang@epri.sgcc.com.cn）。
  刘钊（1987—），男，硕士，高工，主要从事变电设备带电检测与故障诊断、状态检修（E-mail：9090292@qq.com）。
- 基金信息：
  
  中国电科院创新基金（基于光谱和色谱分析技术联用的高精度SF6气体分解产物检测装置研制及应用）;Innovation Fund of CEPRI (Development and Application of High-precision SF6 Gas Decomposition Products Detection Device Based on the Combined Use of Spectroscopy and Chromatographic Analysis Techniques)
- DOI：10.13296/j.1001-1609.hva.2026.06.023
  中图分类号：
- 收稿：2025-11-21，
  
  修回：2026-02-11，
  
  纸质出版：2026-06-16
- 稿件说明：
移动端阅览
季严松, 袁帅, 毕建刚, 等. 一种基于低温富集—紫外荧光法的微量SO₂检测装置研制[J]. 高压电器, 2026,62(6):186-190. DOI: 10.13296/j.1001-1609.hva.2026.06.023.

JI Yansong, YUAN Shuai, BI Jiangang, et al. Development of SO₂ Trace Gas Detection Device Based on Low-temperature Enrichment and Ultraviolet Fluorescence[J]. High Voltage Apparatus, 2026, 62(6): 186-190. DOI: 10.13296/j.1001-1609.hva.2026.06.023.
季严松, 袁帅, 毕建刚, 等. 一种基于低温富集—紫外荧光法的微量SO₂检测装置研制[J]. 高压电器, 2026,62(6):186-190. DOI: 10.13296/j.1001-1609.hva.2026.06.023. DOI：

JI Yansong, YUAN Shuai, BI Jiangang, et al. Development of SO₂ Trace Gas Detection Device Based on Low-temperature Enrichment and Ultraviolet Fluorescence[J]. High Voltage Apparatus, 2026, 62(6): 186-190. DOI: 10.13296/j.1001-1609.hva.2026.06.023. DOI：

摘要

气体是SF

电气设备内部存在局部放电和异常发热时的主要特征分解产物，对于设备潜伏性缺陷的诊断具有重要意义。由于超特高压电气设备气室大且装有吸附剂，设备潜伏性缺陷产生的分解产物体积分数通常低于现场检测仪器的最低检出限，因此现阶段缺少能够有效检测微量SO

的检测装置及技术手段。文中研制了一种基于低温富集和紫外荧光法的微量SO

检测装置，低温富集将被测气体中的大部分SF

液化，SO

气体体积分数得到提升，从而提高气体检测灵敏度；紫外荧光法检测SO

的方法进样量少且为无损检测，适合与低温富集装置结合，实现对10

-9

级别SO

体积分数的检测分析。从试验结果看，当进气量为25 L时，SO

富集倍数约为10倍，进样量为50 L时，SO

富集倍数约为20倍，

该装置可实现体积分数为50×10

-9

的SO

的检测。

Abstract

is the main characteristic decomposition product of SF

-insulated electrical equipment under internal partial discharge and abnormal heating

which is of great significance for the diagnosis of latent defects in such equipment.Due to the large gas compartment and the installation of adsorbents in extra-high voltage (EHV) and ultra-high voltage (UHV) electrical equipment

the concentration of decomposition products generated by latent defects is usually lower than the minimum detection limit of field instruments. Therefore

there is a lack of effective detection devices and technical means for trace SO

at present. In this paper

a trace SO

detection device based on lowtemperature enrichment and ultraviolet fluorescence method is developed.Low-temperature enrichment liquefies most of the SF

in the measured gas

elevating the SO

concentration and thus improving the detection sensitivity. The ultraviolet fluorescence method for SO

detection features small sample consumption and non-destructive measurement

making it suitable for combination with the low-temperature enrichment unit to realize the detection and analysis of SO

at the 10

-9

level.Experimental results show that the SO

enrichment factor is approximately 10 times at an intake volume of 25 L

and about 20 times at 50 L. The device can detect SO

at a concentration of 50×10

-9

关键词

Keywords

references

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Development of SO2 Trace Gas Detection Device Based on Low-temperature Enrichment and Ultraviolet Fluorescence

DOI：10.13296/j.1001-1609.hva.2026.06.023

摘要

Abstract

关键词

Keywords

references

一种基于低温富集—紫外荧光法的微量SO₂检测装置研制

Development of SO₂ Trace Gas Detection Device Based on Low-temperature Enrichment and Ultraviolet Fluorescence