The effect of multi-orifice plate configuration on bubble detachment volume

作     者：Jiming Wen Qiunan Sun Zhongning Sun Haifeng Gu 

作者机构：Fundamental Science on Nuclear Safety and Simulation Technology LaboratoryHarbin Engineering University 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2019年第27卷第1期

页      面：72-84页

核心收录：

学科分类：0817[工学-化学工程与技术] 08[工学] 

基　　金：Supported by the Fundamental Research Funds for the Central Universities(HEUCFM181203) 

主　　题：Multi-orifice plate Aeration performance Bubble detachment volume The number of open orifices 

摘      要：The multi-orifice plate gas sparger, mainly composed of a multi-orifice plate and a gas chamber, is one of the most common sparger *** aeration performance of multi-orifice plate has a close relation with the multiorifice plate *** addition, the weeping phenomenon has a considerable influence on the gas chamber condition which affects the bubble detachment volume *** paper conducts a set of visual experiments to study the influence of multi-orifice configuration and gas chamber condition on the aeration performance of gas *** multi-orifice plate, an improved theoretical model is proposed which considers the wave effect of the previous bubbles generated from adjacent orifices and the variance of the number of active bubbling orifice.A parameter is proposed to evaluate the aeration performance in order to overcome the difficulty caused by the randomness of bubble formation *** experimental results suggest that the gas chamber filled with water is in favor of large bubble *** influence of the pitch of orifice on aeration performance can only be observed in high-restricted *** to the theoretical model and experimental results, the influences of gas flow rate and the number of open orifices on the aeration performance are analyzed and a design criterion for the number of open orifice is proposed.