高校化学工程学报2017，Vol.31Issue(1)：21-30,10.DOI:10.3969/j.issn.1003-9015.2017.01.004
氯碱工业离子膜电解槽内气液两相流动特性
Gas-Liquid Flow in an Ion-Exchange Membrane Electrolysis Cell from Chlor-Alkali Industry
摘要
Abstract
Experimental setup of an ion-exchange membrane electrolysis cell from chlor-alkali industry was established to validate simulation results. Liquid velocity and gas holdup in the electrolysis cell were measured and the simulation results were verified. Gas holdup and gas volume fraction distribution in the anode chamber of the electrolysis cell under different operation conditions were investigated experimentally and numerically. The instantaneous pressure signals at the top of the circular plate near the membrane were monitored and analyzed. The results show that gas holdup increases and gas retention layer at the top of the electrolysis cell becomes thicker with the increase of gas and liquid flow rates. The value of gas holdup reaches to 9.08% at current density of 10 kA?m-2, which is nearly three times higher than that at 4.5 kA?m-2. The gas volume fraction increases along the vertical direction of the electrolysis cell and reaches to maximum at membrane corner and channel plate. Pressure signals at the top of the circular plate near the membrane fluctuate obviously. The higher frequency fluctuation of the pressure signals is mainly caused by liquid flow, while the lower ones are caused mainly by gas flow.关键词
氯碱工业/电解槽/两相流/压力波动Key words
chlor-alkali industry/electrolysis cell/two-phase flow/pressure fluctuation分类
化学化工引用本文复制引用
张丽,戴俊,刘秀明,刘国桢,刘云义..氯碱工业离子膜电解槽内气液两相流动特性[J].高校化学工程学报,2017,31(1):21-30,10.基金项目
辽宁省高校创新团队支持计划资助项目(LT2013010) （LT2013010）
国家自然科学基金(51406125) （51406125）
辽宁省自然科学基金(201602596). （201602596）
