起旋器对水平液固循环流化床颗粒分布的影响  

Effects of the Spiral Flow Generator on Particles Distribution in Liquid-solid Horizontal Circulating Fluidized Bed

作　　者：张少峰[1] 张伟[1] 刘燕[1] 

机构地区：[1]河北工业大学化工学院,天津300130

出　　处：《河北工业大学学报》2009年第2期69-73,共5页Journal of Hebei University of Technology

基　　金：河北省教育厅计划项目(2002148)

摘　　要：建立了一套水平液固循环流化床颗粒分布测试系统,在循环流化床内加入局部起旋器,并利用CCD图像测量与数据处理系统对循环流化床内固相颗粒分布特性进行了研究.探讨了起旋器导叶包角、安装位置、液体流速以及轴向距离对水平循环流化床内固相颗粒分布的影响.实验结果表明:在水平液固循环流化床内安装导流叶片式局部起旋器,可以有效提高管路上部的颗粒浓度,改善固相浓度分布的不均匀程度.A particle distribution test system of liquid-solid horizontal circulating fluidized bed was designed. The CCD image measurement and data processing system was used to study the particles distribution at different operating conditions of single pipe horizontal circulating fluidized bed with the spiral flow generator added. In this paper, the effect of the vane angle, setting location, axial distance, and liquid flow rate were discussed. Experimental results show that the spiral pipe flow generator with an appropriate angle, which is properly arranged in the liquid-solid horizontal circulating fluidized bed, can effectively improve the uniform distribution of particles in the upper part, and decrease the non-uniform distribution of particles in the pipe.

关 键 词：液固循环流化床 水平管 颗粒分布 起旋器 分布不均匀度 

分 类 号：TQ051.1[化学工程]