气固提升管内颗粒浓度的分布与计算  

Distribution and Calculation of the Solid Concentration in Gas-Solid Risers

作　　者：黎梅[1] 诸海碧[1] 王冬琼[1] 黄燕[1] 黄卫星[1] 

机构地区：[1]四川大学

出　　处：《化工机械》2008年第2期73-75,84,共4页Chemical Engineering & Machinery

摘　　要：以实验数据为基础并结合文献研究结果,阐明提升管气固上行两相流颗粒浓度的轴向和径向分布特征,建立充分发展段气固两相流与管壁间摩擦压降的计算模型,改进由测试压力梯度计算颗粒浓度的准确性,并提出充分发展段截面平均颗粒浓度关联式和局部颗粒浓度径向分布关联式。Based on the experimental data and the research resuh of references, the axial and radial distribution characteristics of the solid concentration in the gas-solid two phase flow of risers were stated, a calculation model was founded of the gas-solid two phase flow at the fully-developed segment and the friction pressure drops among the tube wails, the accuracy of the solid concentration calculated by measuring the pressure gradient was improved, and the correlation formula of the average solid concentration at the cross section of the fully-developed segment and the correlation formula of the radial distribution of the local solid concentration were proposed.

关 键 词：提升管 气固两相流 颗粒浓度 压力梯度 

分 类 号：TQ051.23[化学工程]