EPR安全壳高能管道贯穿件应力分析  

Penetration stress analysis for high energy pipes in EPR units

作　　者：彭翠玲[1,2] 张周红 向文元[1,2] 

机构地区：[1]中国广东核电集团 [2]中科华核电技术研究,广东深圳518124 [3]中广核工程有限公司,广东深圳518124

出　　处：《核科学与工程》2012年第2期180-185,共6页Nuclear Science and Engineering

摘　　要：介绍了EPR机组安全壳高能管道贯穿件的结构特点,并对该类型贯穿件的应力分析方法做了重点描述。高能管道贯穿件的应力分析一般分为两个步骤:首先进行热分析,得到结构的温度分布,并判断温度是否满足安全壳混凝土的温度限值要求;第二步进行热-机械耦合分析,得到结构在各种工况下的应力分布,最后根据RCC-M规范的具体要求进行贯穿件应力的评定。分析过程中考虑结构的轴对称特征,采用平面模型进行简化。本文结合具体算例,采用ANSYS程序进行建模计算分析,并采用RCC-M规范进行了高能管道贯穿件的应力评定。This paper introduced the characteristics of penetrations for high energy pipes in EPR units, and mainly presented the steps to do stress analysis. The analysis is divided into two steps： firstly, a thermal analysis, and secondly, a thermal-mechanical coupled analysis. The purpose of the thermal analysis is to demonstrate that temperature in the containment concrete is not too high. The purpose of the thermal- mechanical coupled analysis is to demonstrate the penetration stress criteria under each loading condition categories. According to the axisymmetric characteristics of penetration, a simplified plane model can be built. As a typical example, a stress calculation of penetration RIS DN200 was performed by using ANSYS procedure, and stress evaluation was done according to RCC-M.

关 键 词：EPR 高能管道 贯穿件 热-机械耦合分析 RCC-M 

分 类 号：O342[理学—固体力学]