铀棒栅临界实验装置水堆安全棒系统结构设计及实验验证  

Structure Design and Experimental Verification of Safety Rod System on Uranium-rod Grid Critical Assembly

作　　者：梁淑红[1] 朱庆福[1] 周琦[1] 罗皇达[1] 刘洋[1] LIANG Shuhong;ZHU Qingfu;ZHOU Qi;LUO Huangda;LIU Yang(China Institute of Atomic Energy,P.O.Box 275-45,Beijing 102413,China)

机构地区：[1]中国原子能科学研究院反应堆工程技术研究部,北京102413

出　　处：《原子能科学技术》2018年第11期2009-2012,共4页Atomic Energy Science and Technology

摘　　要：为满足核安全法规的要求和铀棒栅临界实验装置水堆紧急停堆的需要,设计了8根镉棒并排组成的安全棒,采用电磁铁断电以实现快速下落,达到紧急停堆的目的。经实验验证,该系统性能稳定可靠、重复性好,安全棒价值为1.125×10^(-2)Δk/k,快速下落时间为(0.363±0.002)s,满足核安全法规的要求,为铀棒栅临界实验装置水堆的安全运行提供了保障。In order to meet the requirements of nuclear safety regulations and emergency shutdown of uranium-rod grid critical assembly,a safety rod system composed of eight cadmium rods side by side was designed,and the electromagnet was powered off to realize rapid falling,so as to achieve the purpose of emergency shutdown.The experimental results show that the system has stable and reliable performance and good repeatability.The safety rod value is 1.125×10-2Δk/k and fast falling time is(0.363±0.002)s,which meets the requirements of nuclear safety regulations.This provides a guarantee for the safe operation of uranium-rod grid critical assembly water reactor.

关 键 词：安全棒系统 铀棒栅临界实验装置 结构设计 实验验证 

分 类 号：TL326[核科学技术—核技术及应用]