丝网波纹填料塔液泛水力学特征  

Flooding hydraulics characteristic in column with metal gauze corrugated packing

作　　者：金伟娅[1] 张峰[1] 陈冰冰[1] 方志明[1] 

机构地区：[1]浙江工业大学机械工程学院,浙江杭州310014

出　　处：《化工学报》2012年第10期3125-3130,共6页CIESC Journal

基　　金：国家高技术研究发展计划项目(2009AA044802-03);浙江省重点创新团队项目(2010R50001)~~

摘　　要：引言 在炼油、石油化工、精细化厂、食品及医药等部门,塔器均属量大面广的重要单元设备,其投资—般占投资总额的20%左右,有些甚至高达50%,塔器广泛应用于蒸馏、吸收、萃取、洗涤、Flooding hydraulics characteristic of air-water two-phase flow was studied in a miniature plexiglass structured packing column with an inside diameter of 220mm.The experiment used domestic CY700 type of stainless steel gauze corrugated packing and the differential pressure signal of the metal gauze corrugated packing layer was acquired by EJA120A miniature differential pressure transmitter at room temperature and atmospheric pressure.Distribution characteristics of the packing layer pressure was analyzed during different operation stages in the structured column.Fluctuation of the packing layer pressure showed normal distribution with distinctive feature in different experiment operation stages and a fluctuation degree of the pressure signal with standard deviationat was further studied at different spray densities in the packing column.There was a distinct difference between pre-flooding and post-flooding.The power spectral density characteristics of the packing layer pressure were obtained through the analysis of the pressure signals at different operation stages.The pressure signal power at the flooding stage was greater than at the loading liquid stage,and the pressure signal power at the normal operation stage was the minimum.Control of the differential pressure distribution characteristics signal at real-time monitoring could adjust the operation state of the packing columns in real time to predict and avoid the occurrence of flooding,improve operation performance and economic efficiency of the packing columns to realize energy saving and emission reduction.

关 键 词：规整填料塔 丝网波纹填料 液泛 水力学性能 

分 类 号：TQ053[化学工程]