EAST超导托卡马克冷屏的结构设计及受热分析  

STRUCTURAL DESIGN AND ANALYSIS OF THERMAL LOAD FOR EAST TOKAMAK THERMAL SHIELD

作　　者：谢韩[1] 廖子英[1] 

机构地区：[1]中国科学院合肥等离子体物理研究所,合肥230031

出　　处：《低温工程》2004年第4期50-54,共5页Cryogenics

摘　　要：EAST是一个拥有全超导磁体系统的托卡马克实验装置。为有效减少来自真空室和外真空杜瓦的辐射热以及支撑的传导热等各项热负荷 ,超导纵场磁体和极向场磁体被约 80K的真空室冷屏 (内冷屏 )和外真空杜瓦冷屏 (外冷屏 )所包容 ,从而保证磁体运行的稳定可靠。运用大型有限元分析程序ANSYS和FLUENT ,对冷屏的受热状况进行了数值分析 ,为其结构设计和低温制冷方案的制定提供可靠的理论依据。The EAST tokamak is a magnetically-confined full superconducting fusion device,consisting of superconducting toroidal field coils and superconducting poloidal field coils. To assure that the equipment could work at both stable and efficient condition,these coils are held by the vacuum vessel thermal shield and crystat thermal shield that operate at 80K to pretent the radiant heat from the vacuum vessel and crystat and the conductive heat from the supports. The software package ANSYS and FLUENT was utilized to investigate the effect of thermal sources on the temperatures of the thermal shield in order to provide a basis for structural design and the refrigerative project.

关 键 词：冷屏 热负荷 数值分析 温度 托卡马克装置 结构设计 受控核聚变 

分 类 号：TL631.24[核科学技术—核技术及应用]