文献类型：期刊文献

中文题名：三相旋流混合器的仿真与流场特性研究

英文题名：Research on Simulation and Flow Field Characteristics of Three-phase Eddy Current Mixers

作者：谢云霞[1];程光玮[2];李兴振[2];杨波[3];王英[1];吴星东[4];尹凝霞[2]

机构：[1]中海油能源发展装备技术有限公司加工制造中心湛江产品制造中心,湛江524057;[2]广东海洋大学机械工程学院,湛江524088;[3]中海石油(中国)有限公司湛江分公司,湛江524057;[4]中海油能源发展股份有限公司采办共享中心湛江区域分中心,湛江524057

年份：2024

卷号：37

期号：4

起止页码：19

中文期刊名：青岛大学学报(自然科学版)

外文期刊名：Journal of Qingdao University(Natural Science Edition)

基金：B23364三相涡流与卧式平流气浮选耦合数值模拟及其气泡检验方法技术服务。

语种：中文

中文关键词：三相旋流;气泡粒径;混合效率;气浮;含油污水

外文关键词：the three-phase mixer;bubble diameter;mixing efficiency;air flotation;oily wastewater

中文摘要：为了提高含油污水、气体、药剂的混合效率,基于流体动力学理论与CFD(Computational Fluid Dynamics)仿真模拟技术,建立了三相旋流混合器几何模型,通过测量含油污水样品数据,获得入口参数并进行仿真模拟,研究不同气相入口速度和药剂入口位置时,三相旋流混合器中各相的流场分布特性。研究结果表明,三相旋流混合器内部流场特性与气相入口速度有着一定的关联,内筒中气相柱呈现锥形分布,气相入口速度增大时,气相柱随充气量增多而增长;出口处气泡粒径受整体流场的影响,在气相入口速度5m/s时,出口小粒径气泡最多;药剂入口的位置不同影响其在混合器内部的分布情况,药剂入口在混合器侧面时,药剂大多可直接参与混合;药剂入口与液相入口相连时,药剂在混合器内部存在滞留,出口药剂含量少于药剂入口在混合器侧面的情况,混合效果次佳。

外文摘要：To improve the mixing efficiency of oil-containing wastewater,gases,and chemicals,a geometric model of a three-phase swirl mixer was established based on fluid dynamics theory and Computational Fluid Dynamics(CFD)simulation technology.By measuring data from oil-containing wastewater samples,inlet parameters were obtained and used for simulation to study the flow field distribution characteristics of different phases within the three-phase swirl mixer under varying gas phase inlet velocities and chemical inlet positions.The research results show that the internal flow field characteristics of the three-phase swirl mixer are closely related to the gas phase inlet velocity.The gas phase column in the inner cylinder exhibits a conical distribution,and as the gas phase inlet velocity increases,the gas phase column grows with increasing gas charge.At the outlet,the bubble size is influenced by the overall flow field.At a gas phase inlet velocity of 5 m/s,the outlet contains the highest concentration of small bubbles.The position of the chemical inlet affects its distribution within the mixer.When the chemical inlet is on the side of the mixer,the chemical mostly participates directly in the mixing process.However,when the chemical inlet is connected to the liquid phase inlet,the chemical tends to linger inside the mixer,resulting in a lower chemical content at the outlet compared to when the chemical inlet is on the side of the mixer,thereby leading to suboptimal mixing efficiency.