气固流化床内颗粒的内循环特性的研究

被引:3
作者
周亚明
沈湘林
机构
[1] 东南大学
关键词
内循环; 气固流化床; 混合; 非均匀; 振荡;
D O I
暂无
中图分类号
TK229.6 [燃煤锅炉];
学科分类号
080703 ;
摘要
分析了气固流化床内颗粒内循环产生的原因,进而,分析了流化气体速度、静态床层高度、颗粒粒径以及压力对颗粒内循环的影响。当流化气体速度、静态床层高度和颗粒粒径增加时,颗粒的内循环增强;而压力增大将使颗粒的内循环减弱。当颗粒的内循环增强时,流化床的脉冲信号( 温度、浓度和灰度等) 响应曲线的振荡加剧,流化床内颗粒的横向混合将得到改善。
引用
收藏
页码:12 / 14+80 +80
页数:4
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