摘要
北京谱仪Ⅲ(BESⅢ)要求束流铍管部分物质量尽可能少,同时要求将束流铍管内部产生的热负荷通过冷却介质带走,精确控制外壁温度。本文结合理论分析和有限元数值模拟对束流铍管的冷却环形窄通道尺寸进行优化设计,确定了窄通道最佳间隙,研究了集中热负荷对内外壁温度场的影响,并确定了冷却液最佳工作流速。根据设计结构,制作出束流铍管实际尺寸实验模型。实验测量结果表明,束流铍管冷却结构设计合理,最佳流速满足冷却要求。
BESⅢ requires the matter mass of beryllium beam pipe is as few as possible, the heat on the inner wall of beryllium beam pipe must be taken away by cooling fluid, and the temperature on the outer wall must be controlled in the required range. In order to do this, the width of narrow annuli cooling channel of beryllium beam pipe was de- signed by optimization method, the theoretical analysis and finite element method were used, then the optimal width was chosen, the influence of concentrated heat on the temperature of inner and outer wall was studied, and the optimal working velocity of cooling fluid was given. The trim size experiment model of beam pipe was manufactured according to the designed structure. The experiment result shows that the designed cooling structure of beryllium beam pipe is reliable and the optimal velocity satisfies the requirement of cooling.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2008年第11期1033-1038,共6页
Atomic Energy Science and Technology
基金
中国科学院重大项目资助课题(KJ95T-03)
关键词
束流铍管
环形窄通道
冷却
有限元
优化设计
beryllium beam pipe
narrow annuli channel
cooling
finite element method
optimization design
