废气处理吸附器均匀流场的优化  

Optimized Research on Uniform Flux Field in Exhaust Gas Treatment Adsorber

作　　者：刘义鑫 李国富[1] 韩素涛 LIU Yixin;LI Guofu;HAN Sutao(College of Mechanical Engineering and Mechanics,Ningbo University,Ningbo 315211,China;Ningbo Xunan Automation Equipment Co.Ltd..,Ningbo 315211,China)

机构地区：[1]宁波大学机械工程与力学学院,宁波315211 [2]宁波迅安自动化设备有限公司,宁波315211

出　　处：《机械设计与研究》2019年第4期182-186,192,共6页Machine Design And Research

基　　金：浙江省自然科学基金资助项目(LY12E09001);宁波市自然科学基金(2015A610150)

摘　　要：采用CFD软件对含原气体分布器、改进型气体分布器和改进型气体分布器与多孔板相结合3种方案的吸附器的内部流场进行研究,并进行相应的实验验证。模拟结果表明:含原来的气体分布器、改进型分布器和改进型分布器与多孔板相结合吸附器内吸附剂截面上速度相对标准偏差分别为79.165%、36.74%和23.13%;当改进型分布器与多孔板组合使用时,多孔板距离吸附器进口450 mm时气体分布最均匀。实验结果表明:多孔板距离吸附器入口450 mm时,实验数据和模拟结果相对误差仅为2%,存在极好的一致性。The CFD was used to make simulation study about the flow field uniformity of the adsorber including the original gas distributor,the modified gas distributor,and the modified gas distributor combined with the multi-orifice plate,and corresponding experimental verification was carried out. The simulation results showed that the relative distributed deviation of velocity on the cross section of the adsorbent layer of the original gas distributor,the modified gas distributor,and the modified gas distributor combined with multi-orifice plate are 79. 165%,36. 74% and 23. 13% respectively;and under the circumstance that the modified gas distributor combined with the multi-orifice plate was used,and the distance between the multi-orifice plate and the inlet of the VOCs adsorber was 450 mm,the gas distribution would be the most uniform and best. The experimental results showed that there is excellent consistency between experimental data and simulation results when there is 450 mm between the multi-orifice plates and the inlet of the VOCs adsorber. By comparison,the error between the experimental result and the simulation result is 2%.

关 键 词：吸附器 气体分布器 流场均匀性 多孔板 速度相对标准偏差 

分 类 号：TB49[一般工业技术]