基于CFD的离子交换柱流阻特性分析与流体分布模拟  

Flow characteristics analysis and fluid distribution simulation for ion exchange column using CFD method

作　　者：林海波[1] 潘万贵[1] 王伟平[2] 丁力[2] 杨健[2] 

机构地区：[1]台州职业技术学院机电研究所,浙江台州318000 [2]浙江大学化工机械研究所,浙江杭州310027

出　　处：《食品与机械》2015年第3期74-77,193,共5页Food and Machinery

基　　金：浙江省自然科学基金资助项目(编号:LY14E050001);浙江省教育厅科研资助项目(编号:Y201329306);2013年度台州市科技计划项目(编号:131KY05)

摘　　要：基于计算流体动力学数值模拟方法,以阴离子交换树脂(717)为内层析介质,对某一离子交换柱内的流体分布和流阻特性分别进行研究。为便于模拟,以流量3 m3/h,在交换柱内呈层流状态的水作为交换柱内的料液。在假设流体均布前提下,采用二维多孔介质模型对离子交换柱内树脂填料的流阻特性进行模拟,分析不同工况及结构对交换柱内流体压降的影响。以离子交换柱上封头分布器为研究对象,对层析柱内的流体分布情况进行模拟。针对模拟结果,改进分布器结构,一定程度上实现流体的均匀分配,为下一步系统搭建与仿真提供数据支持,为设计新型离子交换柱提供结构优化及工程放大提供理论依据和模型支持。Based on the numerical simulation method on computational fluid dynamics（Computational fluid dynamics,CFD）,and using anion exchange resin（717）as internal chromatography media,the fluid distribution and flow resistance characteristics in ion exchange column were studied respectively.For the convenience of simulation,water was selected as feed liquid,at the flow rate of 3 m3/h,appeared laminar flow state in the exchange column.On the assumption that the fluid uniform premise,the flow resistance characteristics for the column ion exchange resin filler was simulated by the two-dimensional porous media model,and the effects of the exchange column of fluid pressure drop on different working conditions and structure.Taking the ion exchange column head distributor as the research object,the fluid distribution of the chromatography column was simulated.According to the simulation results,distributor configuration was improved to achieve a uniform distribution of fluid to some extent,which could offer system supporter for the next system building and simulation,and further provide theoretical foundation and model support for structure optimization and engineering enlargement for the design of new ion exchange column.

关 键 词：离子交换柱 流阻特性 流体分布 数值模拟 

分 类 号：TQ019[化学工程]