激光吸收光谱技术在工业生产过程及安全预警标识性气体监测中的应用

张志荣; 孙鹏帅; 庞涛; 李哲; 夏滑; 崔小娟; 吴边; 徐启铭; 董凤忠

doi:10.3788/OPE.20182608.1925

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激光吸收光谱技术在工业生产过程及安全预警标识性气体监测中的应用

激光光谱技术 | 更新时间：2020-08-13

- 激光吸收光谱技术在工业生产过程及安全预警标识性气体监测中的应用
- Application of laser absorption spectroscopy for identification gases in industrial production processes and early safety warning
- 光学精密工程 2018年26卷第8期页码：1925-1937
- 作者机构：
  
  1.中国科学院安徽光学精密机械研究所安徽光子器件与材料省级重点实验室, 安徽合肥 230031
  2.中国科学院安徽光学精密机械研究所中国科学院环境光学与技术重点实验室, 安徽合肥 230031
  3.中国科学技术大学环境科学与光电工程学院, 安徽合肥 230026
  4.台湾云林科技大学环境与卫生安全工程系, 台湾云林 64002
- 作者简介：
  
  [ "张志荣(1981-), 男, 山东淄博人, 博士, 副研究员, 2011年于中国科学院安徽光学精密机械研究所获得博士学位, 主要从事环境光学检测技术、激光吸收光谱技术等方面的研究。E-mail:zhangzr@aiofm.ac.cn" ]
  [ "孙鹏帅(1979-), 男, 河南洛阳人, 博士, 2017年于中国科学院安徽光学精密机械研究所获得博士学位, 主要从事激光吸收光谱方面的研究。E-mail:pssun@aiofm.ac.cn" ]
- 基金信息：
  
  中国科学院对外合作重点项目资助(GJHZ1726);国家自然科学基金资助项目(11874364);国家自然科学基金资助项目(41877311);国家自然科学基金资助项目(41775128);国家科技支撑计划资助项目(2014BAC17B03);中国科学院科研装备研制专项(YZ201315);安徽省科技攻关计划资助项目(1604a0802108)
- DOI：10.3788/OPE.20182608.1925
  中图分类号： O433.1;X851;TE991.1
- 收稿日期：2018-04-11，
  
  录用日期：2018-4-28，
  
  纸质出版日期：2018-08-25
- 稿件说明：
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张志荣, 孙鹏帅, 庞涛, 等. 激光吸收光谱技术在工业生产过程及安全预警标识性气体监测中的应用[J]. 光学精密工程, 2018,26(8):1925-1937.

Zhi-rong ZHANG, Peng-shuai SUN, Tao PANG, et al. Application of laser absorption spectroscopy for identification gases in industrial production processes and early safety warning[J]. Optics and precision engineering, 2018, 26(8): 1925-1937.
张志荣, 孙鹏帅, 庞涛, 等. 激光吸收光谱技术在工业生产过程及安全预警标识性气体监测中的应用[J]. 光学精密工程, 2018,26(8):1925-1937. DOI： 10.3788/OPE.20182608.1925.

Zhi-rong ZHANG, Peng-shuai SUN, Tao PANG, et al. Application of laser absorption spectroscopy for identification gases in industrial production processes and early safety warning[J]. Optics and precision engineering, 2018, 26(8): 1925-1937. DOI： 10.3788/OPE.20182608.1925.

摘要

鉴于常规的标识性气体监测方法在响应速度、测量精度、使用寿命、实时性、监测目标种类、测量范围和应用场合等方面相比激光吸收光谱技术存在不足，本文以可调谐半导体激光吸收光谱技术为依托，选取合适的无干扰激光吸收谱线，阐述了工业管道抽取式、管道原位在线对射式、扩散探头式（全量程激光监测一体机形式与多点无源传感器探头形式）、无组织排放开放光路式等多种形式的监测方法。上述系统的测量结果显示：抽取式可实现CO、CO

、O

等不同多组分气体的同时测量；管道对射式实现了O

及10

L/L以下CO的高精度在线测量；探头式则以CH

测量为例实现了响应时间

=15 s，监测极限小于150

L/L，泄漏报警准确率达100%；开放光路形式以天然气集气站场测量CH

、C

三种气体为例实现了0误报的监测能力。上述分析结果表明，TDLAS技术应用于工矿安全生产及安全预警方面的标识性气体监测是完全实用、有效、准确、可靠的。

Abstract

On-line monitoring for identification gases is one of the most important goals in industrial production processes and safety warning areas. Compared with laser absorption spectroscopy

conventional monitoring methods are insufficient in terms of response speed

measurement accuracy

service life

real-time monitoring of a variety of monitoring targets

measuring range

and application scope. In this study

Tunable Diode Laser Absorption Spectroscopy (TDLAS) with an appropriate absorption wavelength was introduced and used for different applications:extraction method of industrial pipeline gases

in situ on-line opposite-type installation

diffusion probe method (integrated machine

multi-point passive transducer)

and unstructured open-path monitoring. The detailed measurement results are as follows:The extraction system can be used to measure the concentrations of various gases

such as CO

and O

; Conventional O

concentration and CO with a concentration less than 10

L/L are measured based on the opposite-type system; The integrated machine and multi-point system uses CH

measurement as an example to realize a response time

=15 s

a monitoring limit less than 150

L/L and a leakage alarm accuracy rate approaching 100%. Lastly

was selected to test the ability of the open-path system

which realizes an early warning ability of zero misstatements. According to long-time operation results

it is apparent that the TDLAS instrument is reliable

practical

and effective when applied to monitoring marking gases of industrial and mining safety production

and early safety warning.

关键词

Keywords

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