摘要
基于Fluent 17.0软件,数值模拟分析了膜管管束末端板直径以及上、下2块末端板之间的距离不同时陶瓷膜过滤器的流场和压力场分布情况,归纳了各几何参数对陶瓷膜过滤器速度分布和阻力的影响规律。分析结果表明,随着膜管管束末端板直径的减小,末端板周围流体的流速呈减小趋势,陶瓷膜过滤器内流场的压降降低,流动阻力减小,末端板直径为86 mm时流场的流速分布最均匀;2块末端板之间的距离对陶瓷膜过滤器内流场的影响不大,末端板之间距离的增大可以减小两板之间的流动死区,陶瓷膜过滤器进出口压降小幅降低,末端板周围流体最大流速先减小后增大,末端板之间距离为20 mm时流速最小,流动均匀性最好。
Based on FLUENT 17.0 software,the flow field and pressure field distribution of different tube bundle end plate diameters and the distance between two tube bundle end plates were numerical simulation analyzed,and the influence laws of various geometric parameters on the velocity distribution and resistance of ceramic membrane filter were summarized. The results show that with the decrease in the diameter of the end plate of the membrane tube bundle,the velocity of the surrounding fluid decreases,the pressure drop of the flow field in the ceramic membrane filter decreases,and the flow resistance decreases. When the diameter of the end plate is 86 mm,the velocity distribution of the flow field is the most uniform. The distance between the upper and lower end plates has little effect on the flow field in the ceramic membrane filter. With the increase of the distance between the two end plates,the flow dead zone between the two plates can be reduced,the pressure drop at the inlet and outlet of the ceramic membrane filter decreases slightly,and the maximum flow velocity around the end of the end plate is reduced first and then increased. When the distance between the end plate is 20 mm,the flow velocity is the smallest and the flow uniformity is the best.
作者
胡恩泽
董金善
朱雨
王聪
HU En-ze;DONG Jin-shan;ZHU Yu;WANG Cong(School of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211816,China)
出处
《石油化工设备》
CAS
2023年第2期51-59,共9页
Petro-Chemical Equipment
关键词
陶瓷膜过滤器
管束末端
流场
分布特性
数值模拟
ceramic membrane filter
tube bundle end
flow field
distribution characteristics
numerical simulation
作者简介
胡恩泽(1997-),男,安徽滁州人,在读硕士研究生,研究方向为过程装备现代设计方法。
