动-静填料旋转床内部气相流场CFD模拟研究  

CFD stimulation of inner gas flow field in rotating packed bed with rotational-stationary packing

作　　者：景满军 高晓亮 杜磊磊[1] 郑国峰[1] 刘学武[1] 

机构地区：[1]大连理工大学化工机械与安全学院,辽宁大连116024 [2]盘锦辽河油田大力集团有限公司化工分公司,辽宁盘锦124022

出　　处：《现代化工》2017年第2期180-183,共4页Modern Chemical Industry

基　　金：中央高校基本科研业务费专项资金资助(DUT15ZD109);中国石油科技创新基金资助(2015D-5006-0601);大连市科技计划项目(2015A11GX045)

摘　　要：通过对动-静填料旋转床进行简化,建立了二维物理模型,采用计算流体力学软件Fluent中多孔介质模型对旋转填料床内部流场进行了模拟研究。通过对旋转填料床进口结构形式、填料层厚度、动填料转速及进气速度对气相压降和速度分布影响的模拟研究,得出切向进口旋转填料床内气体分布更均匀;保持填料外径不变,增大填料层厚度,气相压降随之降低;气相压降随动填料转速和进气速度的增加而增大,这与常规的整体填料旋转床保持一致。A two-dimensional physical model is established by simplifying the rotating packed bed with rotationalstationary packing. The computational fluid dynamics software,Fluent,is employed to stimulate the inner fluid field in rotating packed bed by using the porous medium model. The effects of the structure of gas inlet,thickness of the packing,rotational speed of rotational packing and the gas inlet velocity on pressure drop and gas velocity distribution in rotating packed bed are studied. The results indicate that the gas distribution is well-proportioned in rotating packed bed with tangential gas inlet. When the outer diameter of packing is fixed,the pressure drop is decreased as the thickness of packing is increased. Through increasing rotational speed of packing and gas inlet velocity,the gas pressure drop can be increased,which is consistent with the conventional integral rotating packed bed.

关 键 词：旋转填料床 气相流场 转速 气相压降 

分 类 号：TQ051.19[化学工程] TQ021.1