二维射流床空隙率分布  

Porosity Distribution in Two-dimensional Fludized Bed with a Jet

作　　者：郭庆杰[1] 张济宇[1] 罗国华[1] 

机构地区：[1]中科院山西煤炭化学研究所

出　　处：《化学工业与工程》1996年第4期14-19,共6页Chemical Industry and Engineering

基　　金：国家自然科学基金

摘　　要：使用ＰＣ－４光导纤维测浓仪测定了二维射流床中的空隙率分布，并考查了静床高、射流管径对空隙率分布的影响，发现在射流喷口上方２．５ｃｍ～７．５ｃｍ处有一最大空隙率分布区。利用空隙率分布可定义并求出射流深度，其值与Ｙａｎｇ的关联式计算值吻合。Porosity distribution was measured in a two-dimensional fluidized bed with a jet by PC-4 fiber optic probe.There was a region of maximum porosity at a level 2.5cm～7. 5cm above jet inlet. Expeiments proved that static height and nozzle diameter had some effects on porosity distribution. Based on voidage distribution, the penetration depth was defined and calcutated, and the results accorded with the penetration depth from the Yang's correlation.

关 键 词：空隙率分布 射流管径 射流深度 射流床 流化床 

分 类 号：TQ051.13[化学工程]