搅拌槽内两种桨型组合固液悬浮的数值模拟  

Numerical Simulation of Solid-liquid Suspension in Stirred Tank with Two Impeller Combinations

作　　者：邹晨 叶胜康 杨荣刚 李明锋 林苏奔 ZOU Chen;YE Sheng-kang;YANG Rong-gang;LI Ming-feng;LIN Su-ben(Hengfengtai Precision Machinery Co.,Ltd.,Zhejiang Wenzhou 325088;Zhejiang Hengfengtai Mixer Technology Co.,Ltd.,Zhejiang Wenzhou 325088;Wenzhou University,Zhejiang Wenzhou 325088,China)

机构地区：[1]恒丰泰精密机械股份有限公司,浙江温州325088 [2]浙江恒丰泰搅拌科技有限公司,浙江温州325088 [3]温州大学,浙江温州325088

出　　处：《广州化工》2024年第3期168-170,184,共4页GuangZhou Chemical Industry

摘　　要：本文对工业搅拌罐内原搅拌桨型组合和改造的搅拌桨型组合产生的固液两相流动进行了数值模拟,通过对原搅拌方案和改造后的搅拌方案搅拌罐内所形成的流场、固含率分布以及功率消耗等方面的分析,发现改造方案底层桨叶排出流体的倾斜角更大,形成的搅拌循环更高。原方案搅拌罐内底部固含率很高,从下往上固含率逐渐降低,而搅拌桨型组合改造方案能够形成比较均匀的固含率。改造方案的固液悬浮效果更好,并且改造后的搅拌功率没有增加。The solid-liquid two-phase flow generated by the original and modified impeller combinations in an industrial stirred tank were simulated.Through the analysis of the flow field,solid content distribution,and power consumption in the stirred tank of the original and modified impeller combinations.It was found that the inclination angle of the fluid discharged from the bottom impeller of the modified scheme was larger and a higher circulation was formed.The original impeller combination had a high solid content at the bottom of the tank,which gradually decreased from bottom to top.However,the modified impeller combination can form a relatively uniform solid content.The solid-liquid suspension of the modified impeller combination is better,and the power consumption has not increased.

关 键 词：桨型组合 固液两相流 数值模拟 固含率 功率消耗 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]