低温推进剂贮箱绝热性能实验研究  

EXPERIMENTAL STUDY ON INSULATION PERFORMANCE OF CRYOGENIC PROPELLANT TANK

作　　者：郑建朋 崔晨[1] 陈六彪[1,2] 郭嘉[1] 周远[1] 王俊杰[1] 

机构地区：[1]中国科学院理化技术研究所低温工程学重点实验室,北京100190 [2]中国科学院大学,北京100049

出　　处：《真空与低温》2016年第1期26-29,共4页Vacuum and Cryogenics

摘　　要：针对低温推进剂长时间在轨贮存的要求,搭建了绝热系统地面验证测试装置。本测试装置通过维持高真空及恒壁面温度条件,可以较好地模拟在轨条件;通过贮箱颈管处设置的温度补偿器,有效的屏蔽掉颈管导热漏热。测试装置可实时监测系统中的真空度及壁面温度变化,可对贮箱蒸发排出气体流量和绝热系统不同位置的温度分布进行测量。针对10 mm硬质聚氨酯泡沫和30层多层绝热的复合绝热系统,在真空度2×10-3Pa,冷热壁面温度分别为96 K和313 K条件下,测得液氮日蒸发率为0.210%,折算液氧日蒸发率为0.156%。To meet the requirements of the long time on obit storage of cryogenic propellant,a test system for the ground test has been built. By maintaining high vacuum and constant wall temperature condition,on orbit condition can be simulated. A temperature compensator is set up to shield the heat conduction loss in the neck tube of tank. The vacuum de-gree and the wall temperature in the system can be monitored,and the temperature distribution of the insulation system and the gas flow rate of the tank can be measured. In the 10 mm rigid polyurethane foam and 30 layers of multilayer insu-lation experiment,in the vacuum of 2×10-3 Pa,boundary temperature of 96 K and 313 K,the measured daily evapora-tion rate of liquid nitrogen is 0.210%,and translated daily evaporation rate of liquid oxygen is 0.156%.

关 键 词：低温推进剂 在轨贮存 低温绝热 地面验证 

分 类 号：O514[理学—低温物理] V511.6[理学—物理]