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通过介绍HL-2M内置环形低温泵的运行模式,且依据其运行模式,开展了阀箱的结构设计。从降低热负荷的角度对阀箱结构进行了详细的阐述,并应用ANSYS有限元分析软件进行了阀箱应力及温度场分析。计算结果表明:阀箱箱体能承受0.1MPa外压的强度要求;箱体外壳最高温约297.8K,冷屏最高温度82.93K,满足温度设计要求。对于热负荷的降低具有较好的作用,也能减少液氮的消耗量。
By introducing HL-2M built-in circular cryogenic pump operating mode, and according to its mode of operation, carried out the valve box structure design. The valve box structure is elaborated from the perspective of reducing the heat load, and the valve box stress and temperature field analysis are carried out by using ANSYS finite element analysis software. The calculation results show that the valve box body can withstand the strength requirement of 0.1MPa external pressure; the highest temperature of the box body shell is about 297.8K and the highest temperature of the cold screen is 82.93K, which meets the temperature design requirements. For the reduction of heat load has a good effect, but also reduce liquid nitrogen consumption.