液氦液氢截止阀的有限元分析与优化设计  

Finite Element Analysis and Optimal Design of Liquid Helium Liquid Hydrogen Globe Valve

作　　者：金卡迪 俞伟 尚玉来 俞建国 李平 葛志克 卢再望 陈安定 JIN Ka-di;YU Wei;SHANG Yu-lai;YU Jian-guo;LI Ping;GE Zhi-ke;LU Zai-wang;CHEN An-ding(Zhejiang Boteli Technology Co.,Ltd,Wenzhou 325105,Zhejiang,China)

机构地区：[1]浙江伯特利科技股份有限公司,浙江温州325105

出　　处：《阀门》2024年第5期544-547,共4页VALVE MAGAZINE

摘　　要：液氦液氢截止阀采用环氧玻璃钢材料进行结构优化,拟达到减少漏热并保持传动强度不受影响。然后采用有限元仿真针对优化前后的液氦液氢截止阀进行传热分析和应力分析。研究优化前后的阀体、长颈管、阀杆、环氧玻璃钢等部件的温度和应力在超低温下的分布情况。结果表明:长颈管、阀杆管和环氧玻璃钢等部件均存在较大的温度梯度,但是,优化后的液氦液氢截止阀不仅漏热显著下降,同时,承压强度、变形等参数也均能满足设计要求。The structure of liquid helium liquid hydrogen stop valve is optimized by using epoxy glass fiber reinforced plastic to reduce heat leakage and keep the transmission strength unaffected.Then finite element simulation was used to analyze heat transfer and stress of the liquid helium and liquid hydrogen globe valve before and after optimization.The temperature and stress distribution of valve body,long neck tube,stem,epoxy FRP and other components before and after optimization are studied under ultra-low temperature.The results show that there is a large temperature gradient in the long neck tube,valve stem tube and epoxy FRP.However,the optimized liquid helium and liquid hydrogen stop valve not only reduces heat leakage significantly,but also meets the design requirements of bearing strength and deformation parameters.

关 键 词：液氦液氢截止阀 环氧玻璃钢 有限元仿真 漏热 

分 类 号：TH134[机械工程—机械制造及自动化]