论文部分内容阅读
通过实验研究了顶部受热低温贮罐中低温流体温度分层、压力变化情况,并进行了理论计算。研究结果显示,在静置过程中贮罐在顶部漏热时气相空间温度分层较为显著,且由于顶部的持续漏热,气相空间的温度梯度一直存在;液相的温度梯度曲线与误差函数曲线一致;贮罐的压力可分为两部分:初始的快速增压和之后的稳定增压阶段;随着静置时间的增加,液体温度分层更加明显,贮罐气枕压力逐渐变大。该研究为确定贮罐安全贮存增压压力和贮存时间提供技术依据,为工程实际应用提供支撑。
The temperature stratification and pressure change of cryogenic fluid in the top heated cryogenic storage tank were studied experimentally and the theoretical calculation was carried out. The results show that when the tank leaks at the top of the tank during standing, the temperature of the gas phase is more stratified, and the temperature gradient in the gas phase space always exists due to the continuous heat leakage at the top. The temperature gradient of the liquid phase and the error function curve The pressure of the storage tank can be divided into two parts: the initial rapid pressurization and the subsequent steady pressurization stage. With the increase of standing time, the liquid temperature stratification is more obvious, and the pressure of the storage tank air pillow gradually becomes larger. The study provides a technical basis for determining the supercharged pressure and storage time of safe storage of tanks, and provides support for the practical application of the project.