填料层压降数学模型  

A mechanistic model of pressure drop in structured packing

作　　者：龙湘犁[1] 叶永恒[2] 

机构地区：[1]华东理工大学,上海200237 [2]北京化工大学,北京100029

出　　处：《石油化工设备》2000年第3期16-19,共4页Petro-Chemical Equipment

摘　　要：根据质量和动量守恒原理 ,考虑下降液膜和气相的相互作用、系统内气液两相流动、物性特征以及填料结构参数对压降的影响 ,提出了填料塔内规整填料的压降模型。经验证 ,该模型与本课题板网填料的实测压降数据吻合较好。由于该模型包括的影响因素比较全面 ,可供预测其它规整填料压降时参考。A mechanistic model is developed to predict pressure drop in packed columns equipped with corrugated packing of the regular type. It is developed after considering the interaction of falling liquid film with the gas phase, based on mass and momentum-conservation equations. The model takes into account the flow and physical property characteristics of the systems as well as geometric variables such as corrugation angle. The model is developed and applied to several sets of pressure drop experimental data. Because of its nature, this model may be easy to extend to different types of structured packings.

关 键 词：填料 流体力学 模型 压力降 填料塔 

分 类 号：TQ053.502[化学工程] TE962.02[石油与天然气工程—石油机械设备]