文献类型：期刊文献

中文题名：疏水缔合聚丙烯酰胺溶解槽内流动特性的数值模拟

英文题名：Numerical Simulation of Flowing Property in Hydrophobically Associating Polymer Dissolution Tank

作者：谢明辉[1,2];周国忠[2];龙湘犁[1];虞培清[2]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237;[2]浙江长城减速机有限公司,浙江温州325028

年份：2011

卷号：25

期号：2

起止页码：193

中文期刊名：高校化学工程学报

外文期刊名：Journal of Chemical Engineering of Chinese Universities

收录：CSTPCD;;EI(收录号：20112114007096);Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：混合状态;计算流体力学(CFD);循环流量;搅拌器

外文关键词：mixing state; computational fluid danymics（CFD）; circulation flow rate; impeller

摘要：将疏水缔合聚丙烯酰胺AP-P4溶解过程划分为三种混合状态(搅拌槽中刚加入聚合物颗粒、溶胀刚结束和溶解完成),并采用计算流体力学方法分别对采用二斜叶桨式搅拌器XJD和新型翼型上推式搅拌器KCXU时溶解聚合物AP-P4的三种混合状态的流动进行了数值模拟,获得了两种搅拌器槽内的流场特性和XJD、KCXU搅拌器不同状态时的循环流量和功率消耗。结果表明:除第一种混合状态下的流体流速外,KCXU搅拌槽内的流体流速和循环流量要大于XJD槽内所产生的,说明KCXU搅拌器比XJD搅拌器具有更好的溶解均一化及更高的循环速率。搅拌器功率模拟值与实验数据偏差在16%以内。上述研究结果对于工业搅拌器的优化具有重要的意义。
Dissolution process of hydrophobically associating polyacrylamide AP-P4 was divided into three mixing states（the start of AP-P4 just feeding,the end of swelling,the end of dissolution）.The flow fields of the three states in the dissolution tank with Pitched blade XJD and the new hydrofoil impeller KCXU were numerically simulated respectively by using computational fluid danymics（CFD） method.The fluid velocities,circulation flow rates and shaft powers of the two impellers were investigated.The results show that,in three different states of AP-P4 dissolution process,the fluid velocities and the circulation flow rates in the stirred tank with KCXU are significantly greater than that in stirred tank with XJD,which indicates KCXU can increase the circulating rate.The deviations between the measured and the simulated shaft powers are within 16%.These results are of significance for the optimization of the industrial stirred tanks.