循环流化床锅炉后燃特性及其影响因素分析  

Research on Post Combustion in CFB Boiler

作　　者：杨海瑞[1] 赵新木[1] 王宇[1] 肖显斌[1] 吕俊复[1] 岳光溪[1] 

机构地区：[1]清华大学

出　　处：《电站系统工程》2005年第1期23-24,共2页Power System Engineering

摘　　要：循环流化床锅炉分离器内存在后燃现象,引起的温升将导致尾部受热面吸热量增加,再热器超温。测试结果表明,影响后燃现象的主要因素是给煤的粒度分布、煤挥发分含量及挥发分析出规律,同时与炉膛内总风量、一二次风量的配比有关。The post combustion occurs in the cyclone of CFB boiler, which results in temperature rise of flue gas and the heat transfer to surfaces in back pass increase. The test shows that size distribution of feeding coal, volatile content and its release as well as the total air rate and primary air ratio will influence the post combustion in CFB boiler.

关 键 词：循环流化床锅炉 尾部受热面 二次风 超温 再热器 炉膛 给煤 析出规律 挥发分 配比 

分 类 号：TM621.4[电气工程—电力系统及自动化] TK229.66[动力工程及工程热物理—动力机械及工程]