新型垂直筛板的传质点效率研究  

Research on mass transfer point efficiency of New VST

作　　者：张佑红[1] 包雪梅[1] 王志魁[1] 

机构地区：[1]武汉化工学院化工系,化工部科技情报所,北京化工学院

出　　处：《化学工程》1996年第3期17-21,共5页Chemical Engineering(China)

摘　　要：探讨了ＮｅｗＶＳＴ的点效率数学模型，提出了气液并流平推流模型的气液相Ｍｕｒｐｈｒｅｅ点效率Ｅ_（ＯＧ）模型公式及Ｈａｕｓｅｎ点效率Ｅ_（ＯＨ）模型公式，依据实验数据，得出Ｅ_（ＯＧ），Ｅ_（ＯＬ），Ｅ_（ＯＨ）随清液层高度的变化规律，说明Ｈａｕｓｅｎ点效率比Ｍｕｒｐｈｒｅｅ点效率使用方便，同时得出传质单元数、单罩传质效率的经验关联式。A mathematical models of point efficiency of New VST are studied. Murphree point efficiency expressions of vapour and liquid EOG and EOL and Hausen point efficiency expression EOH are proposed in the parallel plug flow model of vapour and liquid phases. It is obtained that EOG, EOL and EOH vary with liquid depth according to experimental data and it is argued that the use of Hausen point efficiency is more convenient than the use of Murphree point efficiency.At the same time, the empirical correlations of the mass transfer unit number and mass transfer efficiency of single cap are obtained.

关 键 词：点效率 垂直筛板 混合池 传质效率 塔板 传质池 

分 类 号：TQ053.5[化学工程]