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

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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
其他题名	Application of laser absorption spectroscopy for identification gases in industrial production processes and early safety warning
	张志荣
	2018-08-25
简介	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,CO 2,and O 2;Conventional O 2 concentration and CO with a concentration less than 10μL/L are measured based on the opposite-type system;The integrated machine and multi-point system uses CH 4 measurement as an example to realize a response time T 90=15 s,a monitoring limit less than 150μL/L and a leakage alarm accuracy rate approaching 100%.Lastly,CH 4/C 2H 2/C 2H 4 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	可调谐半导体激光吸收光谱(TDLAS) 工业生产过程安全预警标识性气体直接吸收信号谐波信号
收录类别	CSCD
ISSN	1004-924X
语种	中文
引用统计
文献类型	期刊
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/33933
专题	个人在本单位外知识产出
推荐引用方式 GB/T 7714	张志荣.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,2018.

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