CFD Simulation and Experimental Validation of Fluid Flow in Pre-distributor

CIESC Journal ›› 2011, Vol. 19 ›› Issue (5): 815-820.

CFD Simulation and Experimental Validation of Fluid Flow in Pre-distributor

张吕鸿¹, 高国华¹, 隋红^1,2, 李洪^1,2, 李鑫钢^1,2

1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2. National Engineering Research Centre of Distillation Technology, Tianjin 300072, China

收稿日期:2011-06-12 修回日期:2011-08-31 出版日期:2011-10-28 发布日期:2011-10-28
通讯作者: LI Xingang,E-mail:lxg@tju.edu.cn
基金资助:
Supported by the National Key Basic Research and Development Program of China (2009CB219905, 2009CB219907);the Program for Changjiang Scholars and Innovative Research Teams in Universities (IRT0936)

CFD Simulation and Experimental Validation of Fluid Flow in Pre-distributor

ZHANG Lühong¹, GAO Guohua¹, SUI Hong^1,2, LI Hong^1,2, LI Xingang^1,2

1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2. National Engineering Research Centre of Distillation Technology, Tianjin 300072, China

Received:2011-06-12 Revised:2011-08-31 Online:2011-10-28 Published:2011-10-28
Supported by:
Supported by the National Key Basic Research and Development Program of China (2009CB219905, 2009CB219907);the Program for Changjiang Scholars and Innovative Research Teams in Universities (IRT0936)

摘要/Abstract

摘要： Liquid distributor is a very import internal for distillation columns. Pre-distributor is usually set on the top of distributor for initial distribution. Fluid flow in pre-distributor is a complex system of variable mass flow with many orifices and sub-branches. Consequently, the two phase modeling of pre-distributors was carried out and the homogeneous model with free surface model was applied. The numerical method was validated by comparing with experimental data. Using the simulated results for different pre-distributors, the impacts of inflow rate, location and orientation upon the outflow distribution were investigated. Furthermore, influences of the outflow distribution for pre-distributor on liquid uniformity in trough were also analyzed. The conclusions can be adopted for the struc-tural design of liquid distributor and pre-distributor of large scale.

关键词: pre-distributor, computational fluid dynamics, orifices, trough, outflow distribution

Abstract: Liquid distributor is a very import internal for distillation columns. Pre-distributor is usually set on the top of distributor for initial distribution. Fluid flow in pre-distributor is a complex system of variable mass flow with many orifices and sub-branches. Consequently, the two phase modeling of pre-distributors was carried out and the homogeneous model with free surface model was applied. The numerical method was validated by comparing with experimental data. Using the simulated results for different pre-distributors, the impacts of inflow rate, location and orientation upon the outflow distribution were investigated. Furthermore, influences of the outflow distribution for pre-distributor on liquid uniformity in trough were also analyzed. The conclusions can be adopted for the struc-tural design of liquid distributor and pre-distributor of large scale.

Key words: pre-distributor, computational fluid dynamics, orifices, trough, outflow distribution

张吕鸿, 高国华, 隋红, 李洪, 李鑫钢. CFD Simulation and Experimental Validation of Fluid Flow in Pre-distributor[J]. CIESC Journal, 2011, 19(5): 815-820.

ZHANG Lühong, GAO Guohua, SUI Hong, LI Hong, LI Xingang. CFD Simulation and Experimental Validation of Fluid Flow in Pre-distributor[J]. , 2011, 19(5): 815-820.

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CFD Simulation and Experimental Validation of Fluid Flow in Pre-distributor

CFD Simulation and Experimental Validation of Fluid Flow in Pre-distributor

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