双流化床全场气固流动的数值模拟研究  

Numerical Simulation of Full-field Gas-solid Flow in Dual Fluidized Bed

作　　者：罗健威 金保昇[1] 胡华军[1] 黄亚继[1] Luo Jianwei

机构地区：[1]东南大学能源热转换及其过程测控教育部重点实验室,能源与环境学院,江苏南京210096

出　　处：《工业控制计算机》2021年第6期8-9,共2页Industrial Control Computer

摘　　要：以自行设计的双流化床装置为研究对象。以欧拉双流体模型为基础,采用FLUENT软件对双流化床装置的全场气固流动特性进行数值模拟探究。分析了燃烧炉的流化风量对其内部颗粒分布与运行情况的影响。认为随着燃烧炉底部流化风量的增加,燃烧炉内整体颗粒浓度逐渐降低,靠近出口位置的颗粒上行速度增加。A self-designed dual-fluidized bed unit is taken as the research object in this paper.Based on Euler two-fluid model,FLUENT software is used to simulate the full-field gas-solid flow characteristics of a dual fluidized bed device.The influence of fluidization airflow rate on particle distribution and operation of combustion furnace is analyzed.It is considered that the overall particle concentration in the combustion furnace decreases gradually and the upward velocity of the particles near the exit increases with the increase of fluidized air rate.

关 键 词：双流化床 FLUENT 数值模拟 流化风量 

分 类 号：TQ021.1[化学工程]