水平均匀电场下盐水中氯气气泡的聚并特性  

Aggregation characteristics of chlorine bubbles in brine under horizontal uniform electric field conditions

作　　者：黄杏梅 张莹 王宗勇[1] 李雅侠[1] 张丽 HUANG Xingmei;ZHANG Ying;WANG Zongyong;LI Yaxia;ZHANG Li(School of Mechanical and Power Engineering,Shenyang University of Chemical Technology,Shenyang 110142,Liaoning,China;School of Chemical Engineering,Shenyang University of Chemical Technology,Shenyang 110142,Liaoning,China)

机构地区：[1]沈阳化工大学机械与动力工程学院,辽宁沈阳110142 [2]沈阳化工大学化学工程学院,辽宁沈阳110142

出　　处：《化工学报》2023年第12期4881-4891,共11页CIESC Journal

基　　金：辽宁省科技厅应用基础研究项目(2023JH2/101300006);辽宁省教育厅项目(LJKMZ20220764,LJ2019001);辽宁省百千万人才工程项目(2020B085);沈阳市中青年科技人才项目(RC190323)。

摘　　要：实验测量了电场条件下盐水中氯气气泡的大小、气泡间距离及其聚并时间。采用两相流和相场模型对电场条件下氯气聚并过程进行了数值模拟。结果表明,采用实验和数值模拟方法所得到的气泡聚并时间的偏差为11.0%,说明两者吻合较好。在此基础上,分析了不同电压下气泡的聚并过程,考察了气泡直径、液体表面张力和黏度对氯气气泡聚并过程的影响。结果表明:在电压为0~200 V范围内,电压、气泡直径和液体黏度越大,气泡间距越大,聚并时间越长;液体的表面张力越大,气泡间距越小,聚并时间越短。The sizes,the distances between the bubbles,and the coalescence time of chlorine gas bubbles were experimentally measured in brine under electric field conditions in this article.A two-phase flow and the phase field models were used to numerically simulate the coalescence process of chlorine gas bubbles under electric field conditions.The results showed that the deviation of the bubble coalescence time obtained by experimental and numerical methods was 11.0%,indicating a good agreement between them.On this basis,the coalescence process of bubbles under different voltages was analyzed,and the effects of bubble diameter,liquid surface tension,and viscosity on the coalescence process of chlorine gas bubbles were investigated,and their influencing laws were obtained.The results show that within the voltage range of 0—200 V,the larger the voltage,bubble diameter,and liquid viscosity,the larger the bubble spacing,and the longer the coalescence time.The greater the surface tension of the liquid,the smaller the spacing between bubbles,and the shorter the coalescence time.

关 键 词：气泡聚并 聚并时间 均匀电场 数值模拟 气液两相流 氯碱工业 

分 类 号：TK121.1[动力工程及工程热物理—工程热物理]