CPR1000型核电机组控制棒组件落棒时间的验收准则初步优化  

Criterion Optimization of the Rod Drop Time of the Control Rod Assembly in CPR1000 Nuclear Power Plant

作　　者：张恒凯 柳继坤 赵云涛 刘吉光 刘洋 ZHANG Hengkai;LIU Jikun;ZHAO Yuntao;LIU Jiguang;LIU Yang(State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment,China Nuclear Power Engineering Co.,Ltd.Shenzhen of Guangdong Prov.518172,China)

机构地区：[1]中广核工程有限公司核电安全监控技术与装备国家重点实验室,广东深圳518172

出　　处：《核科学与工程》2022年第6期1291-1295,共5页Nuclear Science and Engineering

摘　　要：根据CPR1000型核电机组中控制棒在落棒过程中的动作特点、受力分析以及在9台机组中的试验结果,分析发现了在机组调试启动和正常运行期间,一回路液态冷却剂压力变化对控制棒落棒时间无影响,但落棒时间随冷却剂温度升高而减小,且试验结果与理论分析结果相符,同时根据冷却剂温度对落棒时间的影响规律,优化了不同工况下控制棒落棒时间的验收准则。不仅可作为同类型机组在调试启动阶段和正常运行期间控制棒落棒时间验收准则的参考,而且可作为控制棒落棒过程理论受力模型分析时的参考。According to the motion and force characteristics of the control rod bank during rod dropping, and the test results in nine nuclear power plants, the power of fluid inside the primary loop has no impact on the rod drop time, which decreases with the increase of the temperature of the fluid inside the primary loop. The new criterion of the rod drop time is calculated in different test conditions. The conclusion cannot be only applied to the other nuclear power plants of similar type during commissioning and normal operation, but also as reference when analyzing the dynamic force model during rod dropping.

关 键 词：控制棒 落棒时间 影响因素 验收准则优化 

分 类 号：TL48[核科学技术—核技术及应用]