MJ TR允许停堆时间估算研究  

The Research of Evaluating the MJTR 's Permitted Shutdown Time

作　　者：梁光远[1] 刘水清[1] 罗欣[1] 王皓[1] 徐涛忠[1] LIANG Guang-yuan;LIU Shui-qing;LUO Xin;WANG Hao;XU Tao-zhong(Nuclear Power Institute of China,Chengdu Sichuan 610041,China)

机构地区：[1]中国核动力研究设计院,四川成都610213

出　　处：《科技视界》2018年第25期245-246,210,共3页Science & Technology Vision

摘　　要：岷江试验堆在运行每个炉次的后2段,到运行寿期的后几天,由于剩余后备反应性较小,为避免掉入碘坑进入被迫停堆时间,无法再次启动反应堆,本文对已经满功率运行2天后,对停堆影响反应堆重新启动的主要因素进行了分析,对允许停堆时间进行估算研究,并通过实际运行数据对其进行了验证,结果表明:本估算研究成果能够有效地指导反应堆的运行,具有较大的应用价值。When MJTR （Min Jiang Testing Reactor） is operated at the last two periods of each cycle, which means the last few days of the operation lifetime, the core＇s remaining built-in reactiviU is becoming smaller. In order to avoid failing into the iodine well and being in the forced shutdown time ,which would result in the reactor being unable to be restarted. This paper analyzed the main factors that influenced the reactor to be restarted during the shutdown period,and then evaluated the permitted shutdown time.Finally,using the practical operation data to validate the calculated value.The results show that the research findings can guide the reactor operation effectively,and have large application value.

关 键 词：后备反应性 碘坑 被迫停堆时间 允许停堆时间 

分 类 号：TB472[一般工业技术—工业设计]