锅炉燃烧调整对氮氧化物排放的影响 摘 要:阐述了热力型、燃料型和快速型氮氧化物(NOx)的生成机理,并以某台 680 t/h 锅炉为对象进行试验,分析了锅炉在进行燃烧调整过程中二次风箱与炉膛压差、配风方式、氧量、磨煤机组合运行方式等因素对 NOx 排放量的影响,得出结论:采用水平浓淡燃烧技术、在燃烧器顶部布置二次风,以及进行燃烧调整优化,可降低锅炉 NOx 的排放量
最后指出,应在不影响锅炉效率的情况下,对燃烧进行调整优化,来达到减少 NOx 排放的目的
关键词:锅炉;NOx 排放;燃烧调整;配风方式;效率 Influence of boiler combustion regulation on emission of nitric oxidesWEN Zhiyong, SONG Jinghui(Guangdong Power Test & Research Institute, Guangzhou 510600, China) Abstract:The generation mechanism of nitric oxides(NOx)are expounded in this paper
A 680 t/h boiler is tested to analyze the effect of such factors as differential pressure of secondary air box and furnace, air distribution mode,oxygen content,coal pulverizer operation mode on NOx emission during boiler combustion regulation
It is concluded that adopting horizontal bias co