安全壳内剥蚀引起的气溶胶颗粒再悬浮  

Aerosol resuspension behavior caused by denudation in containment

作　　者：陈林林[1] 魏严凇 史晓磊[1] 季松涛[1] CHEN Linlin;WEI Yansong;SHI Xiaolei;JI Songtao(China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《中国粉体技术》2020年第5期1-6,共6页China Powder Science and Technology

基　　金：国家科技重大专项项目,编号:2017ZX06004006。

摘　　要：针对安全壳内剥蚀引起的再悬浮问题,在与热工氢气气溶胶碘试验--气溶胶再悬浮(THAI AR1)试验方法进行比较的基础上,开展试验研究工作,系统研究潮湿条件、气流速度、沉积面状态等不同因素对气溶胶颗粒再悬浮的影响。结果表明:验证试验的结果与THAI AR1试验结果符合较好,试验方法可行;由剥蚀引起的气溶胶再悬浮率远低于由冲蚀引起的气溶胶再悬浮率,且两者有数量级上的差异。In view of the aerosol resuspension caused by denudation in the containment,the experimental research was carried out on the basis of comparison with the thermal-hydraulic hydrogen aerosol iodine aerosol resuspension (THAI AR1) test method,and the influence of different factors such as humidity conditions,airflow velocity,and deposition surface state were systematically studied. The results show that the verification test results are in good agreement with THAI AR1 and the test method is feasible. The aerosol resuspension rate caused by denudation is much lower than that caused by erosion,and there is an order of magnitude difference.

关 键 词：再悬浮 剥蚀 潮湿条件 气流速度 沉积面状态 

分 类 号：TH766[机械工程—仪器科学与技术]