基于紫外差分技术的超低Cl2排放检测研究  

Research on the Ultra-low Cl2 Emission Detection Based on the UV-DOAS Technology

作　　者：盛润坤 项金冬 陆生忠 陈少华 SHENG Run-kun;XIANG Jin-dong;LU Sheng-zhong;CHEN Shao-hua(Hangzhou Tranlion Technology Co.,Ltd,Hangzhou 310052,China)

机构地区：[1]杭州春来科技有限公司,杭州310052

出　　处：《中国环保产业》2020年第9期69-72,共4页China Environmental Protection Industry

摘　　要：文章介绍了基于DOAS原理和最小二乘方法对超低浓度的Cl2进行光谱测量和浓度反演的烟气分析仪(Cl2分析仪)。实验结果表明,在3.2m光程的气体室,分析测量结果精确,相对误差在0.8%以内,满量程误差在0.2%以内,不同浓度的Cl2线性指标误差在2%以内,检测下限为0.1ppm,测量结果的精度为0.15ppm,能够实现对超低Cl2排放的检测。This paper introduced a flue gas analyzer(Cl2 analyzer)based on DOAS principle and least square method for spectral measurement and concentration inversion of ultra-low concentration of Cl2.The experimental results show that in the gas compartment with an optical path of 3.2m,the analysis and measurement have accurate results;the relative error is within 0.8%,the full-range error is within 0.2%,the error of linearity under different concentrations of Cl2 is within 2%,the detection limit is 0.1ppm,and the accuracy of measurement results is 0.15ppm,which can realize the detection of ultra-low Cl2 emission.

关 键 词：紫外差分光谱技术 CL2 超低检测 最小二乘法 多项式拟合 

分 类 号：TK115[动力工程及工程热物理—热能工程]