【摘要】 分析了液化石油气贮罐在设计过程中,不同的工作环境真空校核问题。对不同的介质和不同的贮罐内径进行了计算,找出了处于环境低温下装有丙烯、丙烷混合液化石油气、正丁烷、异丁烷、丁烯、丁二烯的液化石油气贮罐可否按真空校核的规律。对内压与外压筒体壁厚进行了比较,得出液化石油气的饱和蒸汽压力越大,按真空校核的概率越小;反之饱和蒸汽压越小,校核的概率就越大。因此能够在设计中减少不必要的校核,可以提高设计效率,缩短产品设计周期。更多还原

【Abstract】 Vacuum checking problems under the different working environments were analyzed in the design process of liquefied petroleum accumulator pot. With computing different media and inner diameters of pots, a rule whether a liquefied petroleum pot filled with propylene, propane, butane and butylenes could be checked according to vacuum condition in the low temperature was found. By comparing thickness of inner-press and outside-press barrel wall, it’s concluded that the larger the saturated stream press of liquefied petroleum gas is, the smaller the probability of vacuum check is. On the contrary, the smaller the saturated stream press of liquefied petroleum gas is, the larger the probability of vacuum checking is. Therefore, the conclusion helps reduce the unnecessary checking, increase the designing efficiency, and shorten the product design period.更多还原