循环流化床流动特性分析

Study on the Fluid Characteristics of Circulating Fluidized Bed

基于循环流化床 ( CFB)的流动特性 ,提出了一个求解其流动结构的模型。模型综合考虑了床内粒子空间分布的轴向和径向不均匀性 ,可以预测各种运行条件下床内颗粒浓度分布情况 ,并能清楚地表示床的几何尺寸、运行工况对循环流化床流动特性的影响。

Based on the hydrodynamics of a circulating fluidized bed,a model of fluid structure is presented.The un equal distribution of particles in axes and radial are taken into consideration.This model can predict the particle consistence in the bed and describe the influence of the bed size and operation conditions on the fluid structure.The results are important to the design and operation of CFB boilers.