循环流化床锅炉燃烧过程仿真研究  

Simulation Research on Combustion Process of Circulating Fluidized Bed Boiler

作　　者：殷术贵[1] 吴智恒[1] 张华伟[1] 黄栋[1] 

机构地区：[1]广州有色金属研究院,广东广州510651

出　　处：《广东电力》2016年第1期8-10,共3页Guangdong Electric Power

基　　金：广东省科技计划项目(2014B070706025;2015A030401072;2015B010111001)

摘　　要：建立循环流化床锅炉(circulating fluidized bed boiler,CFBB)的二维几何模型,采用欧拉双流体模型与离散相模型相结合的方法对CFBB燃烧过程进行仿真分析。根据仿真所得锅炉内部床料颗粒、煤粉颗粒分布情况以及气相温度场、浓度场等多物理场分布特点,得出结论:同时使用欧拉双流体模型与离散相模型具有可行性;在CFBB燃烧过程中,内部煤粉的火焰位置是变化的。下一步的研究重点是CFBB三维几何模型的仿真分析。Two-dimension geometric model for circulating fluidized bed boiler （CFBB）is established and combination method of Euler-Euler two fluid model and discrete phase model is used for simulating analysis on combustion process of CFBB. Ac- cording to characteristics of multi-physics field distribution including bed material particles, distribution of pulverized coal particles, gas phase temperature field, concentration field, and so on inside the boiler, it is concluded that it is feasible to use Euler-Euler two fluid model and discrete phase model at the same time, and in process of CFBB combustion, flame posi- tion of internal pulverized coal is changing. Next research key point is simulating analysis on three-dimension geometric model of CFBB.

关 键 词：循环流化床锅炉 燃烧 气固两相流 双流体模型 离散相模型 

分 类 号：TK224[动力工程及工程热物理—动力机械及工程]