钍基熔盐堆回路管道蠕变疲劳分析和评定研究  

Creep-Fatigue Analysis and Evaluation of Thorium-Based Molten Salt Reactor Loop Pipe

作　　者：卢喜丰[1] 王新军[1] 艾红雷[1] 吕勇波[1] 何风[1] 

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610213

出　　处：《核动力工程》2017年第1期56-59,共4页Nuclear Power Engineering

摘　　要：钍基熔盐堆(TMSR)回路管道的运行温度大于500℃,需要采用高温反应堆的评定准则来进行评定。对于高温管道需对其进行应力、应变及蠕变-疲劳分析来保证其完整性。传统的方法是采用ANSYS软件建立有限元模型来进行蠕变-疲劳分析,耗时费力。本文采用PIPESTRESS软件对TMSR回路管道进行评定。分析结果表明:通过引入应力指数,对PIPESTRESS软件的计算结果进行处理,可以完成回路管道蠕变-疲劳分析的快速评定。在TMSR回路管道分析中,该方法省时省力,是一种更加实用和有效的方法。The operation temperature of loop pipe is higher than 500^（2 in the thorium-based molten salt reactor （TMSR）. The pipe evaluation is based on rules for high temperature reactors. The stress, strain, deformation and creep-fatigue shall be evaluated for satisfying the structural integrity. The traditional method of ANSYS evaluating the creep-fatigue is the finite element analysis, but it is more complex and time-consuming and boring labor. The PIPESTRESS is used to analyze the loop pipe of TMSR. The results show that the stress indices are calculated and the creep-fatigue fast evaluation of the TMSR loop pipe is done by PIPESTRESS. The analysis method is a more effective and practical method used for the evaluation of the TMSR loop pipe.

关 键 词：钍基熔盐堆(TMSR) 回路管道 蠕变-疲劳 应力指数 PIPESTRESS 

分 类 号：TL426[核科学技术—核技术及应用] TL353