文献类型：期刊文献

中文题名：锥套型气体分布器冷模实验与数值模拟研究

英文题名：Cold model experiment and numerical simulation of cone-shaped gas distributor

作者：叶格廷[1];陈和[2];傅送保[2];叶光华[1];束忠明[1];周兴贵[1]

机构：[1]华东理工大学化工学院,上海200237;[2]中海油化工与新材料科学研究院(北京)有限公司,北京102200

年份：2025

卷号：42

期号：5

起止页码：175

中文期刊名：化学工业与工程

外文期刊名：Chemical Industry and Engineering

收录：;北大核心:【北大核心2023】；

语种：中文

中文关键词：计算流体力学;固定床;气体分布器;流动均匀性;结构优化

外文关键词：computational fluid dynamics;fixed-bed;gas distributor;flow uniformity;structure optimization

摘要：气体分布器是固定床反应器中均布气体的重要内构件。针对锥套型气体分布器进行了冷模实验,在此基础上采用计算流体力学方法进行放大研究,并对模拟计算结果进行验证,分析了锥套扩散角和锥套层数等结构参数对分布器性能的影响。模拟结果表明:锥套型气体分布器能显著提高反应器内气体流动的均匀性;随着锥套扩散角和锥套数的增大,气体均匀性得到提升,但是过大锥套扩散角和锥套数会引导气体流向壁面,从而造成额外的动能损失。研究结果可用于指导锥套型气体分布器的设计优化和工业应用。
The gas distributor is a crucial internal component responsible for the uniform distribution of gas within fixed-bed reactors.This study presents cold model experiment conducted on a cone-shaped gas distributor.Subsequently,computational fluid dynamics(CFD)is utilized to conduct a scale-up investi-gation.The simulation results are validated through the experimental data.It investigates the impact of structural parameters,including the cone diffusion angle and number of cone layers,on the performance of the gas distributor.The simulation results demonstrate that the cone-shaped gas distributor can greatly enhance the uniformity of gas flow within the reactor.Increasing the cone diffusion angle and the number of cone layers improves gas uniformity.However,excessively large values for these parameters can direct gas flow toward the wall,leading to additional kinetic energy loss.Enlarging the inlet area can substan-tially decrease the pressure drop within the reactor.This study are applicable for directing the optimiza-tion of design and industrial deployment of cone-shaped gas distributors.