微破损燃料组件离线检漏装置研制  

Development of Off-Line Leak Detection Device for Micro-Rupture Fuel Assemblies

作　　者：贾亚青[1] 李成业[1] 李劲松[1] 张劲松[1] 程瑛[1] 

机构地区：[1]中国核动力研究设计院,成都610005

出　　处：《核动力工程》2016年第1期82-85,共4页Nuclear Power Engineering

摘　　要：为解决不能脱水的微破损已辐照浅燃耗燃料组件离线检漏的问题,进行了燃料组件检漏技术方案、抽气技术和检查工艺研究。利用低温吸附和抽气载带的方法,解决水中放射性气体的检测问题。基于以上研究成果研制了检漏装置,并进行试验验证。该检漏装置对^(137)Cs检出限为0.5Bq/L,对^(85)Kr的检出限为19 Bq/L。To solve the offiine leak detection problem for the irradiated low burnup fuel assembly and micro-rupture which can not bedewatered, the research on technology of fuel assembly leak detection, pumping gas technology research and process checking research are carried out in this paper. Low temperature adsorption method and gas pumping and adsorption method are applied to solve the problem of radioactive gas detection in water. Based on the results of above research, we have developed leak detection device which has been validated by experiment. The detection limit of the leakage detecting device for 137Cs and 85Kr are 0.5Bq/L and 19Bq/L.

关 键 词：燃料组件 离线检漏 微破损 

分 类 号：TL352.27[核科学技术—核技术及应用]