光离子化熏蒸气体痕量检测系统的设计与实验研究  

Design and experiment of fumigant gas trace detection system based on photoionization

作　　者：龚绍润[1] 王跃进[1] 邹兵[1] 张广平[1] 张凡华[1] 

机构地区：[1]中国检验检疫科学研究院,北京100029

出　　处：《植物检疫》2014年第5期21-26,共6页Plant Quarantine

基　　金：中国检验检疫科学研究院基本科研业务费专项资金资助项目(2013JK016;2014JK024)

摘　　要：根据国家质检总局规定,针对检验检疫口岸熏蒸库投药室内气体泄漏监测的要求,开发了基于光离子化技术的熏蒸气体痕量检测系统,着重阐述了系统设计的原理、结构及特征。获取了不同温度、相对湿度及溴甲烷浓度下的测试数据,分析数据后表明,该光离子化熏蒸气体痕量检测系统能够检测并区分痕量溴甲烷气体,通过合理设计是能够满足检验检疫口岸熏蒸库投药室内气体泄漏监测的要求。To meet the requirements, based on the provision of Administration of Quality Supervision, Inspection and Quarantine（AQSIQ）, of gas leakage monitoring inside dosing room of fumigation warehouse at the inspection and quarantine port, a fumigant gas trace detection system based on photoionization detector（PID） is developed. The principle, structure and characteristic of the system design are especially demonstrated. The test data under different temperature, humidity and methyl bromide concentration demonstrate that the fumigant gas trace detection system based on PID can measure trace methyl bromide. A conclusion can be drawn that the requirements of gas leakage monitoring inside dosing room of fumigation warehouse at the inspection and quarantine port can be met through proper design.

关 键 词：光离子化检测器 痕量检测 熏蒸 检疫处理 溴甲烷 

分 类 号：X84[环境科学与工程—环境工程]