基于最小二乘法研究大气氮氧化物分析仪不同反应室结构的适用性  

Research on the Applicability of Different Reaction Cell Structures of Nitrogen Oxide Analyzerby the Least Square Method

作　　者：叶花 YE Hua(CECEP Talroad Technology Co.,Ltd.,Beijing 100085,China)

机构地区：[1]中节能天融科技有限公司,北京100085

出　　处：《价值工程》2021年第26期160-162,共3页Value Engineering

摘　　要：反应室腔体是大气氮氧化物分析仪最为关键的结构组件,直接影响分析仪的长期稳定性。本文通过对设计的三种不同反应室结构为期11天的监测,研究三种反应室结构数据衰减率情况,并使用最小二乘法对数据进行分析及预测,结果表明,反应室结构(二)相比于其它两种反应室结构,数据衰减率均值低,在第四天后趋于稳定,24h漂移及预测的第二轮7天漂移均符合标准要求,同时,观察测试完成后反应室腔体内部附着结晶盐的实际现象,反应室结构(二)腔体内附着的结晶盐含量也最少,由此可见,反应室结构(二)在数据和实际现象上表现一致,具有明显的优势。Reaction cell is the most important structural component of nitrogen oxide analyzer,which directly affects the long-term stability of the analyzer.In this paper,the data decay rate of three different reaction cell structures was studied by monitoring them for 11 days,and the least square method was used to analyze and predict.The results showed that the reaction cell structure compared with other two kinds of reaction cell structure,data average low decay rate,stable after 4 days,24 h drift and predict the second round of the 7 days drift are conform to the requirements of the standards,at the same time,observe the test after the completion of the reaction cell inside the cavity adhesion salt crystals actual phenomenon,reaction cell structure(2)also have the fewest cavity adhesion crystallization salt content in the body.It can be seen that the structure of reaction cell(2)is consistent in data and actual phenomena and has obvious advantages.

关 键 词：反应室腔体 氮氧化物分析仪 衰减率 最小二乘法 

分 类 号：X822[环境科学与工程—环境工程]