动态吸附装置数值模拟及均匀流场分析
Numerical Simulation of Dynamic Adsorption Device and Analysis of Uniformity of the Flow Field
贾欣宇 1党明岩 1王健 2姜夕宗 2刘宸希 1孙杰1
作者信息
- 1. 沈阳理工大学环境与化学工程学院,沈阳 110159
- 2. 风帆(扬州)有限责任公司,江苏扬州 225600
- 折叠
摘要
采用流场模拟软件对动态吸附装置内部流场进行数值模拟,以流场不均匀度和压降为评价指标,探讨了动态吸附装置的结构参数对其流场不均匀度和压降的影响.结果表明:加装多孔板分布器可以在一定程度上改善进入吸附剂床层流体的流动均匀性;采用中心不开孔分布器结构可以很好地避开高速流体的正面冲击,将中心区域的高速流体阻断并向两侧分散,更好地改善流场均匀性;随着入口直径的增大,流场不均匀度逐渐减小,但会造成较大的设备损耗;随着高径比的增大,流场不均匀度逐渐增大,进出口压降变大,减小装置的高径比对均匀流场有着积极作用,并且造成的流体流动损耗较低;增大流体的入口流速可以在一定范围内改善流场均匀性,但会增大流体流动损耗.
Abstract
In this paper,the flow field inside the dynamic adsorption device is numerically simula-ted by using the flow field simulation software.The influence of the structural parameters of the dy-namic adsorption device on the flow field non-uniformity and pressure drop is discussed.The re-sults show that the porous plate distributor can improve the flow uniformity of the fluid entering the adsorbent bed to a certain extent,and the high speed fluid in the center area can be blocked and dis-persed to both sides to better improve the flow field uniformity.With the increase of inlet diameter,the non-uniformity of flow field decreases gradually,but it will cause large equipment loss.With the increase of the ratio of height to diameter,the non-uniformity of the flow field gradually increases,and the pressure drop of inlet and outlet becomes larger.Reducing the ratio of height to diameter of the device has a positive effect on the uniform flow field,and the resulting fluid flow loss is lower.Increasing the inlet flow rate can improve the uniformity of the flow field in a certain range,but it will increase the flow loss.
关键词
吸附装置/数值模拟/流场/计算流体动力学Key words
adsorption device/numerical simulation/flow field/computational fluid dynamics引用本文复制引用
基金项目
辽宁省教育厅科学研究经费项目(LJKZ0235)
出版年
2024
NETL
NSTL
万方数据