中国电机工程学报Issue(10)：2480-2486,7.DOI:10.13334/j.0258-8013.pcsee.2015.10.014
1000 MW超临界循环流化床锅炉环形炉膛气固流动特性数值模拟
Numerical Study of Gas-solids Flow Characteristics in a 1000MW Supercritical CFB Boiler Octagonal Furnace
摘要
Abstract
Numerical simulation of the gas-solid flow of a 1000MW supercritical circulating fluidized bed(CFB) octagonal furnace based on the two-phase model and Gidaspow drag model was carried out. The simulation was simplified by using rotationally symmetric periodic boundary conditions coupling method. The results indicate the following points: The axial solid concentration profile along the furnace height shows an approximate type S curve; Solid particles highly accumulate in the corner of dense phase zone while they distribute uniformly in the dilute phase zone; Solid concentration among suspended panels is slightly higher than that in the furnace; Lager solid differential concentration is found between two sides of suspended panel when it is close to furnace exit, which could be 50% of the section average value; Solid flow distribution of three cyclones is non-uniform, which in the center is smaller than that of the other two in the same side of the furnace. The maximum instantaneous deviation could be 7.0%~9.5%.关键词
超临界/循环流化床/环形炉膛/1000MW/气固流动特性/数值模拟Key words
supercritical/circulating fluidized bed(CFB)/octagonal furnace/1000MW/gas-solid fluid dynamics/numerical simulation分类
能源科技引用本文复制引用
许霖杰,程乐鸣,邹阳军,王勤辉,施正伦,方梦祥..1000 MW超临界循环流化床锅炉环形炉膛气固流动特性数值模拟[J].中国电机工程学报,2015,(10):2480-2486,7.基金项目
中国科学院战略先导科技专项项目(XDA07030100-6-3)。Supported by the “Strategic Priority Research Program” of the Chinese Academy of Sciences, Grant (XDA07030100-6-3) （XDA07030100-6-3）
