摘要
为了降低六角切向燃烧褐煤煤粉锅炉的 NOx 的排放量,文中对一台燃用褐煤的 670t/h 煤粉锅炉燃烧器、采用水平浓淡燃烧和分级送风技术后,进行了 NOx 排放特性的工业性试验研究。试验中研究了各种送风方式对 NOx 排放和燃烧特性的影响。试验表明,采用分级送风和水平浓淡燃烧相结合,NOx 排放浓度下降了 23%以上,达 388.3mg/m3,而锅炉效率有所提高,低负荷稳燃能力有所加强。
For reducing NOx emission of six point tangential burning PC(pulverize coal) boiler firing lignite coal, the paper describe the test study of NOx emission of one 670t/h PC boiler firing lignite coal after it was modified with horizontal lean-rich combustion and air stage feeding technology. The test studied the influence of each kind of air feeding type on NOx emission and combustion. The test showed that through applying air stage technology combining the horizontal lean-rich combustion, the NOx emission of this boiler was reduced above 23%, thus to 388.3mg/m3. Meanwhile, the boiler efficiency kept high and its low rate capacity was improved.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2005年第1期158-162,共5页
Proceedings of the CSEE
