内置钝体对快速流化床中颗粒浓度分布的影响  

Concentration Profiles in Fast Fluidized Bed with Bluff-Body

作　　者：甘宁俊 蒋大洲[1] 白丁荣[1] 金涌[1] 俞芷青[1] 

机构地区：[1]清华大学化工系联合应化所一部

出　　处：《高校化学工程学报》1990年第3期273-277,共5页Journal of Chemical Engineering of Chinese Universities

基　　金：国家自然科学基金

摘　　要：本文在内径140mm的快速流化床中,考察了内置钝体对床内轴向压力分布和径向颗粒浓度分布的影响。实验结果表明,内置钝体构件对于快速流化床中的压力和浓度的分布影响显著,而且大大增强了气固两相的径向混合。By using the optical fiber probes and pressure sensors, the axial pressure profiles and radial concentration profiles were investigated in a fast fluidized bed ( 140 mm ID ) with bluff-body. It was found that the concentration and pressure profiles are strongly affected by the bluff-body, and the gas-solid mixing in the bed radial direction is also greatly intensified.

关 键 词：内置钝体 流化床 颗粒浓度分布 

分 类 号：TQ051.13[化学工程]