含二氧化碳和水蒸气的氮气增压输送液氮模拟试验  

SIMULATION EXPERIMENT OF TRANSPORTING LIQUID NITROGEN USING HIGH PRESSURE N_2 (GAS) CONTAINING CARBON DIOXIDE AND WATER VAPOR

作　　者：谢雪梅[1] 李琦芬[1] 陈国邦[1] 钟轶魁[1] 郑锡亮[1] 孔博[1] 黄永华[1] 汤珂[1] 甘智华[1] 邱利民[1] 张福忠 张化照 田玉蓉 

机构地区：[1]浙江大学制冷与低温研究所,杭州310027 [2]北京宇航系统工程研究所,北京100076

出　　处：《低温工程》2003年第4期16-24,共9页Cryogenics

摘　　要：进行了低温液体火箭推进系统的液氧箱自生增压输送过程的模拟试验,专门设计加工了液氮箱增压输送模拟试验台,试验得出了液氮增压输送过程中温度、压力、流量的变化规律以及含饱和CO_2、H_2O的氮气通过过滤器时,对系统的流量和压降的影响。指出为保证低温流量计测量准确,必须重视在避免管路中出现两相流方面采取措施。试验结果表明,本试验装置能有效地进行合CO_2、H_2O(气)的氮气增压输送试验,保证了试验的圆满成功。A simulation experiment of automatically pressurizing transportation process of the liquid oxygen tank of the cryogenic rocket engine is made. The special test-bed is designed. Through the experiment the variation low of temperature, pressure and flow in the transportation process is found out. And it is pointed out that as the liquid nitrogen containing CO2 and H2O flows through the filter it has the influence on the flon and the pressure drop of the system. In order to ensure the correct measurement of the cryogenic flowmeter, the measure must be taken to avoid two-phase flow in the pipe. The result indicates that the test-bed can work effectively and the test is successful.

关 键 词：二氧化碳 水蒸气 液氮 火箭推进系统 氮气增压输送系统 

分 类 号：V43[航空宇航科学与技术—航空宇航推进理论与工程]