高固相浓度下多孔板分布器对淤浆床内流动特性的影响  

The effect of a perforated plate distributor on the hydrodynamics of a slurry bubble column at high solid concentrations

作　　者：王国峰[1] 杨茹[1] 张晓东[1] 刘辉[1] 李成岳[1] 李建伟[1] 

机构地区：[1]北京化工大学可控化学反应科学与技术基础教育部重点实验室,北京100029

出　　处：《北京化工大学学报（自然科学版）》2006年第2期13-16,22,共5页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家"973"计划项目(2004CB217604)

摘　　要：对于有、无进料口多孔板分布器两种结构下淤浆床中的流动特性进行了考察。在配料固相质量分数为29%的条件下,实验测定了不同操作条件下反应器内的轴、径向相含率及其分布,轴、径向压强脉动,初步揭示了分布器以及操作条件对局部流动参数的效应。结果表明,多孔板分布器加入后淤浆床内的气含率较高,这种差异在较大表观气速下尤为明显,同时床内的流动变得均匀。The hydrodynamics of slurry bubble columns with and without a perforated plate distributor nave been investigated with a coal solid concentration of 29% （wt） under a continuous operation mode for both liquid and solid. Flow parameters such as phase holdup and pressure fluctuation, as well as their axial and radial distributions were measured at different superficial phase velocities. It is demonstrated that the use of the perforated plate affords a high level of gas holdup, especially at higher superficial gas velocities, and nearly uniform distributions of the solid within the column.

关 键 词：淤浆床反应器 多孔板分布器 相含率 压强脉动 

分 类 号：TQ021[化学工程]