中国散裂中子源主剥离膜热效应分析  

Analysis of Thermal Effect for China Spallation Neutron Source Primary Stripper Foil

作　　者：何哲玺[1,2] 邱静[1] 李春华[1] 屈化民[1] 邹易清[1,2] 

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]中国科学院研究生院,北京100049

出　　处：《原子能科学技术》2013年第10期1867-1871,共5页Atomic Energy Science and Technology

摘　　要：主剥离膜是中国散裂中子源(CSNS)快循环同步加速器的关键设备之一。正常工况下,膜片上产生的高温与其他热效应是影响剥离膜寿命的主要因素。为预测膜片的工况,选择合理的设计方案,利用有限元分析软件计算了CSNS-Ⅰ期工程中主剥离膜在不同工况下的温升、热应力和热变形。仿真结果显示,膜片上最高温度为1 450K;固定方式对热应力、热变形影响不大。根据仿真结果,最终设计膜库的备用膜片数为20片,膜片的固定方式为双边固定。Primary stripper foil device is one of the most important devices in rapid cycling synchrotron of China Spallation Neutron Source （CSNS ） .In normal operation conditions ,the high temperature and other thermal effects on foil are the main factors which influence the foil’s lifetime .In order to predict the foil’s working conditions and choose an appropriate design scheme ,the finite element analysis software was utilized to calculate the foil’ s temperature ,thermal stress and deformation in different working conditions of CSNS-Ⅰ .The simulation result shows that the highest temperature on foil is 1 450 K , and the mounting mode would hardly affect the thermal stress and deformation .Based on the simulation result ,the final spare foil’s number is designed to be 20 ,and the two-edge fixed method is utilized as the foil’s mounting scheme .

关 键 词：剥离膜 温度 热应力 热变形 

分 类 号：TL503.3[核科学技术—核技术及应用]