Simulation of flow field in vertical radial flow adsorber with parallel connection device

RUI Daozhe; ZHANG Xuejun; CHEN Yao; QIU Limin; ZHANG Xiaobin

doi:10.11949/j.issn.0438-1157.20150192

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Simulation of flow field in vertical radial flow adsorber with parallel connection device

更新时间：2025-12-10

- Simulation of flow field in vertical radial flow adsorber with parallel connection device
- CIESC Journal Issue 11, Pages: 4485-4492(2015)
- 作者机构：
  
  浙江大学制冷与低温研究所, 浙江省制冷与低温技术重点实验室,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150192
  CLC： Q116
- Online First：05 November 2015，
  
  Published：05 November 2015
- 稿件说明：
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RUI Daozhe, ZHANG Xuejun, CHEN Yao, et al. Simulation of flow field in vertical radial flow adsorber with parallel connection device[J]. CIESC Journal, 2015, (11): 4485-4492.
DOI：

RUI Daozhe, ZHANG Xuejun, CHEN Yao, et al. Simulation of flow field in vertical radial flow adsorber with parallel connection device[J]. CIESC Journal, 2015, (11): 4485-4492. DOI： 10.11949/j.issn.0438-1157.20150192.

摘要

为降低径向流吸附器高度对均布的影响

提出了径向流吸附器的分层并联设计方法

并建立了径向流分层并联吸附器的数值计算模型。应用计算流体力学方法对分层并联式径向流吸附器中流体在床层内的流场进行了数值模拟计算

并在相同条件下与增高改进后的径向流吸附器的流场分布进行对比。结果表明

分层并联设计方法的均匀度相比于增高方法的均匀度提高了80%

有效清除了径向流吸附器过高对床层内流体均布的负面影响

且对分层并联径向流吸附器上部单元床层厚度进一步优化

达到了上下单元同时穿透的目的。

Abstract

In order to reduce the non-uniformity of the flow distribution caused by excessively high bed

a new parallel connection device is presented. A mathematical model for a parallel connection vertical radial flow adsorber is established to simulate the flow field in the adsorption bed

and the characteristics of pressure drop and radial velocity profiles are obtained. This flow distribution is compared with that with height-increasing method with the same bed height. It is shown that the non-uniformity of radial static pressure drop and the energy passing through the bed are reduced significantly by using the parallel connection device. The revamped adsorber can maintain a high level of uniformity in the adsorption bed and avoid the influence of excessive height. The adsorption bed thickness of the upper unit is optimized to ensure the two units to be saturated simultaneously.

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