反应堆压力容器用金属C形密封环力学及密封特性研究  

Research on the mechanical and sealing characteristics of metallic C-ring for reactor pressure vessels

作　　者：段成红[1] 刘玮琦 罗翔鹏[1] DUAN Chenghong;LIU Weiqi;LUO Xiangpeng(School of Mechanical and Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029)

机构地区：[1]北京化工大学机电工程学院,北京100029

出　　处：《压力容器》2024年第12期23-31,共9页Pressure Vessel Technology

摘　　要：为研究反应堆压力容器用金属C形密封环的力学及密封特性,采用有限元分析法对其进行模拟仿真,并与试验结果对比验证了模型的准确性和可靠性。在此基础上,分析了C形密封环所处温度、材料等参数对其压缩回弹特性曲线、回弹率、接触压力、接触宽度等力学特性和密封特性的影响。结果表明,C形密封环在高温环境下的压缩回弹性能和密封性能均差于常温环境;C形密封环各部分材质对其压缩回弹性能和密封性能存在影响,并提出了一组性能较优的材料组合,可为C形密封环的实际工程应用提供参考。To investigate the mechanical and sealing properties of metallic C-ring for reactor pressure vessels,this study employed finite element analysis(FEA)to simulate their behavior and validated the model accuracy and reliability through experimental comparisons.Based on this,the effects of temperature and material parameters on the compression-rebound characteristic curves,rebound ratio,contact pressure,and contact width of the C-ring were systematically analyzed.The results indicate that the compression-rebound performance and sealing capability of the C-ring under high-temperature conditions are inferior to those under ambient conditions.Furthermore,the material composition of different sections of the sealing ring significantly influences its mechanical and sealing performance.An optimized material combination is proposed,offering enhanced performance for practical engineering applications of C-ring.

关 键 词：反应堆压力容器 金属C形密封环 密封特性 压缩回弹特性曲线 接触压力 

分 类 号：TL352[核科学技术—核技术及应用] TG113.2[金属学及工艺—物理冶金] TH136.2[金属学及工艺—金属学]