旋流板式气液分离器的放大规律  

Scale-up of Mist Swirl Separators

作　　者：魏伟胜[1] 樊建华[1] 鲍晓军[1] 石冈[1] 

机构地区：[1]石油大学(北京)中国石油天然气集团公司催化重点实验室,北京102200

出　　处：《过程工程学报》2003年第5期390-395,共6页The Chinese Journal of Process Engineering

基　　金：中国石油化工股份有限公司科技开发资助项目(编号: 300023)

摘　　要：对旋流板式气液分离器在3种规模、18种旋流板结构下进行了模型实验研究,考察了旋流板结构参数(径向角、仰角和叶片数量)对分离效率和压降的影响,并建立了预测分离器压降的关联式,为旋流板结构参数的确定提供了依据. 工业应用的标定结果表明分离器压降预测式是准确的,它可用于工业气液分离器的放大设计.Experiments were conducted in three swirl mist separators, with the internal diameters being 340, 480, and 700 mm, respectively. The separators were equipped with 18 sets of swirl vanes. The effects of superficial gas velocity and geometrical parameters, such as the elevation and the radial angle of the swirl vane, vane number, the ratio of separator body height to diameter on mist separation efficiency and pressure drop were tested. Results showed that the separation efficiency and pressure drop increased as elevation, radial angle and vane number were increased. An optimal superficial gas velocity exists in the range from 5 to 9 m/s and it decreases slightly with scale-up. The optimal distance between the swirl vane and inner exiting tube is 32%~73% of the separator diameter. The mist separator should be designed to make the separation efficiency as high as possible, with the pressure drop less than 2 kPa. The structure of the swirl vane is one of the most important parameters by which pressure drop is determined. A pressure drop correlation was established based on experimental data and theoretic analysis. A scale-up procedure was suggested for the design of industrial mist separators. Pressure drops measured from two industrial scale separators (f1.52 m and f1.90 m) were found in good agreement with the predicted values, and the separation efficiency of greater than 95% was achieved.

关 键 词：旋流板 气液分离器 分离效率 压降 放大设计 

分 类 号：TQ051.8[化学工程] TQ028.4