摘要
将填料单元处理成立体节点网 ,根据节点网内网线液流和节点液流各自的运动方式建立了填料单元的液体分布模型 .通过将填料与塔壁间的液体交换规范成填料节点网与塔壁节点网间的液量传递建立了填料单元对应塔壁区的流体分布模型 .提出了规整填料塔液体分布问题的边界条件 . 2个描述填料单元及其对应塔壁区液体分布的数学模型与 2类边界条件共同构成了波纹板规整填料塔的液体分布模型 .采用单纯形法对 3个模型参数进行了估计 .模型计算结果与实验数据一致 。
By treating an element of structured packing as a three-dimensional node net and analyzing the flow patterns of 2 kinds of liquid stream in the net, i.e. net line flow and node flow, the liquid distribution model for an element of structured packing was established. By transforming the liquid exchange between packing and column wall into that between the node net of packing and the node net of column wall, the liquid distribution model for the column wall zone around a packing element was presented. The boundary conditions for the liquid distribution problem of structured packed columns was proposed. The liquid distribution model for corrugated sheet structured packed columns was thus composed of the above two models and relevant boundary conditions. Three model parameters was estimated by using the simplex method. The calculated results agreed very well with the experimental data, that is to say, the mathematical model could describe the liquid flow behavior in corrugated sheet structured packed column correctly.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2003年第5期646-652,共7页
CIESC Journal
关键词
模型
液体分布
规整填料
填料塔
Boundary conditions
Flow of fluids
Flow patterns
Liquids
Mathematical models
Three dimensional
