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引言为了防止绝热不好的容器中低温液体的蒸发,需要对容器中的气枕进行增压。这只要引入少量的温度较高的气体就可十分容易地完成。所需增压气体的数量是与进入贮箱的气体温度成反比的,因为增压要求它本身就是一种能量要求。增压剂的引入对液-气系统有两个作用;一是使界面温度升高到对应于提高后的气枕压力下的饱和温度,一是提高了蒸汽的温度。
INTRODUCTION In order to prevent the evaporation of cryogenic liquid in poorly insulated containers, the air pillow in the container needs to be pressurized. This can be done very easily by introducing a small amount of hotter gases. The amount of pressurization gas required is inversely proportional to the temperature of the gas entering the reservoir, as pressurization requires that it itself be an energy requirement. The introduction of a booster has two effects on the liquid-gas system; one is to raise the interface temperature to the saturation temperature corresponding to the increased pressure of the pillow, and the other is to increase the temperature of the steam.