CPR1000反应堆压力容器C形密封环的数值模拟方法研究  

Numerical Simulation Research on C-ring of CPR1000 Reactor Pressure Vessel

作　　者：熊光明 段远刚 邓小云 谭蔚[2] 金挺 杨能仁 

机构地区：[1]深圳中广核工程设计有限公司,深圳518124 [2]天津大学,天津300072

出　　处：《核动力工程》2012年第6期9-12,共4页Nuclear Power Engineering

摘　　要：CPR1000反应堆压力容器使用的密封元件为C形密封环。本文建立了该密封环的实物模型、指环模型、当量圆筒模型3类共5个有限元分析模型;通过线弹性和弹塑性分析,得到各模型侧向加载、卸载过程中的载荷-位移曲线。研究结果表明,基于中径的当量圆筒模型更好地反映了C形密封环的性能,并能有效降低运算成本,可用于反应堆压力容器螺栓法兰联结结构密封性能研究。分析还表明,合金覆面、密封银层对分析结果的影响较为显著。The seal element of CPRIO00 reactor pressure vessel is C-ring, in this paper, five finite element models are established, including practical model, ring model, equivalent cylinder model. Using linear elastic analysis and elastoplastic analysis, each model＇s load-displacement curve of bearing radial load is obtained, which contains applying loading and unloading process. The result show that, equivalent cylinder model based on the medium-diameter can reflect the characteristics of C-ring. At the same time, it can effectively reduce the cost of calculation, and can be used for seal analysis of reactor pressure vessel bolt-flange connecting structure. Analysis also indicates that, the alloy cladding and silver have a great influence on the results.

关 键 词：CPR1000 反应堆压力容器 C形密封环 模拟技术 当量圆筒模型 

分 类 号：TL351[核科学技术—核技术及应用]