EAST托卡马克装置外冷屏的热负荷分析

外真空杜瓦冷屏 (简称外冷屏 )是 EAST超导托卡马克核聚变装置的重要部件之一 ,它在处于室温下的外真空杜瓦与运行在 4 .5 K温度下的超导线圈之间形成了一道隔热的屏障 ,以保证装置能够稳定高效的运行。文中运用有限元分析软件 ANSYS对外冷屏封头、中筒、底座的传热情况做了计算与分析 ,以得到在氦气入口处压强为 5 .2 bar,温度为 80 K的情况下 ,外冷屏低温面板的详细设计方案

Analysis of Thermal Load for EAST Tokamak Cryostat Thermal Shield Design

The crystat thermal shield is an important part of the superconducting tokamak. It provides a heat barrier between the crystat at room temperature and the superconducting coils that operate at 4.5K to assure that the equipment could work at both stable and efficient condition. In order to derive the detailed design of crystat thermal shield cryopanel, the software package ANSYS was utilized to investigate the effect of thermal sources on the temperatures of lid, body and base cryopanel when the inlet condition of helium gas are at 5.2 bar pressure and 80K temperature.