压水堆燃料组件抗震试验研究  

Study on Seismic Test of PWR Fuel Assembly

作　　者：郭严 张国梁 张艳红[2] 李伟才 胡晓[2] 古成龙 Guo Yan;Zhang Guoliang;Zhang Yanhong;Li Weicai;Hu Xiao;Gu Chenglong(China Nuclear Power Technology Research Institute Co.,Ltd.,Shenzhen,Guangdong,518026,China;China Institute of Water Resources and Hydropower Research,Beijing,100048,China)

机构地区：[1]中广核研究院有限公司,广东深圳518026 [2]中国水利水电科学研究院,北京100048

出　　处：《核动力工程》2023年第2期109-115,共7页Nuclear Power Engineering

摘　　要：燃料组件属I类抗震物项,其抗震问题直接关系核电厂运行安全,通常需通过抗震试验验证反应堆燃料组件抗震分析方法的合理性。本文模拟反应堆实际堆芯燃料组件安装方式,设计压水堆燃料组件抗震试验件与试验装置,针对不同组件数量布置方案,在高性能地震模拟振动台上开展试验研究。结果表明,水介质中燃料组件的第一阶频率为2.96 Hz,最大冲击力出现在燃料组件偏中间位置处,试验获取了地震作用下燃料组件的格架冲击力、格架相对位移、模拟堆芯板与围板的加速度等响应。试验结果可用于设计基准事故工况中燃料组件抗震分析模型的建立与分析软件的验证。The seismic behavior of fuel assembly,as Class I seismic item,is directly related to the operation safety of nuclear power plants.It is usually necessary to verify the reasonableness of the seismic analysis method for reactor fuel assembly through seismic test.By simulating the actual reactor core fuel assembly installation method and designing the pressurized water reactor(PWR)fuel assembly seismic test specimens and devices,this paper carries out an experimental study for different fuel assembly quantity arrangement schemes on the high-performance seismic simulation vibration table.The results show that the first-order frequency of the fuel assembly in the water medium is 2.96 Hz,and the maximum impact force occurs in the position close to the middle of the fuel assembly.The lattice impact force and the relative displacement of the fuel assembly and the accelerations of the simulated core plate and baffle under the action of earthquake are obtained.The test results can be used to establish the seismic analysis model of fuel assembly and verify the analysis software under the designed reference accident condition.

关 键 词：压水堆(PWR) 燃料组件 抗震试验 格架冲击力 

分 类 号：TL352[核科学技术—核技术及应用]