化工学报2019，Vol.70Issue(8)：2954-2960,7.DOI:10.11949/j.issn.0438-1157.20190219
循环流化床U型回料阀的特性
Characteristics of U-type return valve of circulating fluidized bed
摘要
Abstract
The investigation of U-type nonmechanical recycling valve is carried out on a cold-circulating fluidized bed (CFB) test facility. The size of the cross section of the valve is used to study the influence of the structural characteristics of the cross section on the return characteristics of the U-type valve. The influence of horizontal opening of U-valve on solids circulating rate are also studied. When the fluidizing gas velocity is constant, the solid circulating rate increases linearly first and then reaches constant. At a given loosing gas rate, the maximal circulating rate of system depends mainly on the fluidizing gas velocity. The optimized opening ratio of the horizontal section is about 25% cross section area of the standpipe.关键词
U型阀/开口率/循环流化床/循环流率/两相流Key words
U-type valve/ opening ratio/ circulating fluidized bed/ circulating rate/ two-phase flow分类
化学化工引用本文复制引用
张思海,陈陆剑,张缦,陶欣,张守玉,杨海瑞..循环流化床U型回料阀的特性[J].化工学报,2019,70(8):2954-2960,7.基金项目
国家自然基金联合基金项目(U1810126) （U1810126）
