热力发电2025，Vol.54Issue(7)：71-81,11.DOI:10.19666/j.rlfd.202409212
超临界660 MW CFB锅炉循环物料分配特性研究
Characterization of circulating material distribution in 660 MW CFB boiler
摘要
Abstract
Based on the computational particle fluid dynamics(CPFD)numerical simulation method,the study takes the 660 MW supercritical circulating fluidized bed(CFB)boiler in Pingshuo,Shanxi as the research object.A full-loop model of the furnace is established and numerically simulated.On the basis of the parameters of the actual furnace,the material distribution characteristics of six cyclone separators are investigated.By altering the ratio of primary to secondary air,the uniformity of primary air,and the uniformity of secondary air,the effect of operational parameter changes on the gas-solid flow field within the furnace and the material distribution at the cyclone separator inlets is analyzed.The results indicate that the distribution characteristics of particles within the furnace lead to a distribution feature of particle mass flow rate at the cyclone separator inlets,which is"high on both sides and low in the middle".When the total air volume is constant,a larger ratio of primary to secondary air can reduce the deviation in particle mass flow rate at the cyclone separator inlets.The uniformity of air distribution for both primary and secondary air in the furnace also affects the particle mass flow rate distribution at the cyclone separator inlets.The deviations in particle mass flow rate at the inlets of the six cyclone separators reach their minimum when the wind speed deviation at the middle air distribution plate is 10%and the deviation in the middle secondary air volume is 5%,respectively.关键词
CFB/CPFD/运行参数/旋风分离器/物料分配Key words
CFB/CPFD/operating parameters/cyclone separator/material distribution引用本文复制引用
姚力,谢玉婷,葛铭,刘海玉,姜恒,于辉,金燕..超临界660 MW CFB锅炉循环物料分配特性研究[J].热力发电,2025,54(7):71-81,11.基金项目
山西省重点研发计划项目(201903D321075) （201903D321075）
中国工程院院地合作项目(2021SX5) Key Research and Development Program of Shanxi Province(201903D321075) （2021SX5）
Chinese Academy of Engineering Academia-local Cooperation Project(2021SX5) （2021SX5）
