细粒子流化床料层内的电阻分布特性

Experimental Study on the Resistance Distribution Property of Small Particales in Fluidized Bed

采用自制的网络电阻测试装置及单片机数采系统，试验研究了细粒子流化床内的电阻分布特性；建立了一个描述料层空隙率分布的更接近于工程实际的εＨ模型。同时，提出了表述空隙率ε、碰撞频率ｆ与流化风速Ｖ关系的ε与ｆＶ推理模型。

In this paper,the resistance property of small fluidized particales has been studied by using a self developped instrumnet with seven probes and a Z80 data processing system.The more practical ε V model has been established,describing the distribution perty of the air porosity in fluidized bed.At the same time,another reasonins model of ε and f V has also been put forward,explaining the relation ship among the pavameters ε,f and V .