煤燃烧中氮释放特性试验研究  

Experimental Investigation of Nitrogen Release Characteristics in Coal Combustion Process

作　　者：侯栋岐[1] 于德亭[1] 祝捷[1] 钟祚群 杨仲明 姜义道 张晶[3] 

机构地区：[1]哈尔滨电站设备成套设计研究所 [2]哈尔滨锅炉有限责任公司 [3]哈尔滨市环保局

出　　处：《电站系统工程》1997年第6期45-49,62,共6页Power System Engineering

摘　　要：对３种煤着火、燃烧初期和燃烧过程中氮释放和ＮＯｘ转化特性进行了试验研究，得出在燃烧初期（０．８ｓ内）煤的氮释放特性有显著差异；燃烧中氮的释放率要高于当时的燃尽率；ＮＯｘ生成率主要受燃烧空气量和送风方式的影响；低ＮＯｘ燃烧技术必须与氮释放特性相适应才能收到较好的低ＮＯｘ排放效果。The experimental investigation of nitrogen release and NO_x conversion characteristics in ignition, initial stage of combustion and combustion process for three kinds of coals were carried out. It was indicated that the nitrogen release characteristics of coal differed greatly in initial stage of combustion (within 0.8 s), the nitrogen release rate was higher than the burnout rate at that time, NO x prducing rate was mainly influenced by the quantity of combustion air and air feed mode, and LNB technology must be suitable to nitrogen release characteristics.

关 键 词：煤 燃烧 NOx 氮 释放特性 试验研究 

分 类 号：TQ534[化学工程—煤化学工程] TM621.2[电气工程—电力系统及自动化]