循环流化床锅炉中氧浓度沿炉膛轴向和径向的分布

Axial and Radial Oxygen Concentration Profiles in a Circulating Fluldized Bed Boiler

基于床内“流束”流动模型，建立了描述循环床内气体流动和煤粒燃烧模型，并对影响床内氧浓度分布的各种因素进行了讨论。

A mathematical model is proposed to describe the axial and radial oxygen concentration of a circulating fluidized bed boiler combustor. The main objective of this model is to analyze comprehensive behavior of the char combustion in the furnace. This model is based on fundamental conservation equations for flowing beam conception. The effects of the solids circulatiing rate, gas velocity,bed temperature and particle diameter on the oxygen concentration profiles along axial and radial are investigated.