基于金属与金属接触的蒸汽发生器螺栓预紧载荷研究  

Research of Steam Generator Screw Preload Based on Metal-to-Metal Contact

作　　者：汤臣杭[1] 何劲松[1] 余平[1] 周永[1] 

机构地区：[1]中国核动力研究设计院,四川成都610041

出　　处：《压力容器》2014年第6期23-27,共5页Pressure Vessel Technology

摘　　要：基于金属与金属接触密封机理,对压水堆核电站蒸汽发生器密封结构螺栓预紧力的确定进行了探讨。通过有限元分析方法,获得了蒸汽发生器密封结构螺栓载荷—伸长量曲线,并给出了蒸汽发生器螺栓伸长量的确定方法。Based on metal-to-metal contact theory,it makes a detailed analysis on the screw preload determination for steam generator in PWR nuclear power plant. By use of finite element calculation and analysis,a preload-elongation curve was obtained. Finally,it provides a method on determining proper elongation for steam generator screw.

关 键 词：蒸汽发生器 金属与金属接触 预紧载荷 螺栓伸长量 

分 类 号：TH136[机械工程—机械制造及自动化] TL353.13[核科学技术—核技术及应用]