径向流吸附器流体流动特性及其结构参数优化

化工学报

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径向流吸附器流体流动特性及其结构参数优化

陈瑶, 张学军, 陆军亮, 邱利民, 张小斌, 孙大明, 甘智华

浙江大学制冷与低温研究所, 浙江杭州 310027

出版日期:2014-09-05 发布日期:2014-02-28
通讯作者: 张小斌
基金资助:
国家重点基础研究发展计划（973）子课题（No.2011CB706501）和国家自然科学基金（No. 51176164）资助

Flow characteristics of radial flow adsorber and its structure parameters optimization

Chen Yao, Zhang Xuejun, Lu Junliang, Qiu Limin, Zhang Xiaobin, Sun Daming, Gan Zhihua

Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China

Online:2014-09-05 Published:2014-02-28
Supported by:
supported by Major State Basic Research Development Program of China (973 Program) (2011CB706501) and by National Natural Science Foundation of China (51176164)

摘要/Abstract

摘要： 径向流吸附器通常存在流体沿轴向床层分布不均匀，从而导致吸附剂利用率下降和空分系统运行安全性问题。通过对表征Z型径向流吸附器流动特性的微分控制方程中包含的结构参数进行无量纲化，系统地研究了各结构参数对吸附器内流体分布的影响。同时针对实验室已有的一台Z型径向流吸附器，采用理论求解和实验数据对照的方法验证了模型的可靠性。结果表明，减小吸附床层轴向高度和吸附剂颗粒直径能显著提高Z型径向流吸附器内流体分布的均匀性；当空气的运动粘度和其他结构参数不变时，吸附器的空气处理量在一定范围内变化对吸附床层内流体的均匀性影响不大。

关键词: 径向流, 吸附, 流动特性, 结构参数, 优化, 模型

Abstract: A nonuniform flow distribution along the axial direction usually exists in a Z-flow type radial flow adsorber which will decrease the utilization of the adsorbents and even result operating safety problems in cryogenic air separation. The structure parameters in a dimensionless differential equation which determines the flow characteristics of Z-flow type radial flow adsorber were dimensionless processed,and the effects of structure parameters on the flow distribution in the adsorber were investigated systematically.Meanwhile, the theoretical result of the flow distribution in an experimental radial flow adsorberwas in agreement with the experimental data.The results show that reducing the axial height of adsorption bed and the diameters of adsorbent particles can significantly improve the flow distribution in the Z-flow type radial flow adsorber; While the amount of processed airhas little impact on that, when the kinematic viscosity of air and other structure parameters are constant.

Key words: radial flow, adsorption, flow characteristics, structure parameters, optimization, model

中图分类号:

陈瑶, 张学军, 陆军亮, 邱利民, 张小斌, 孙大明, 甘智华. 径向流吸附器流体流动特性及其结构参数优化[J]. 化工学报.

Chen Yao, Zhang Xuejun, Lu Junliang, Qiu Limin, Zhang Xiaobin, Sun Daming, Gan Zhihua. Flow characteristics of radial flow adsorber and its structure parameters optimization[J]. CIESC Journal.

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径向流吸附器流体流动特性及其结构参数优化

Flow characteristics of radial flow adsorber and its structure parameters optimization

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