你知道低氮燃烧器容易出现什么故障吗?
time:2021-08-23 views: 1687 author : GACO
    低氮燃烧器一般使用废气或烟气再循环(EGR或FGR)、化学添加剂(如氨)和催化剂辅助来削减氮氧化物的生成,因为火焰温度是最重要的变量。火焰温度越高,氮氧化物浓度越高。空气预热和炉温与火焰温度有关,对氮氧化物的发生有重要影响。
 
    当过量空气添加超过化学计量时,发生的氮氧化物量开始添加。近年来,大力推动清洁空气方案,压减燃煤量。不论是会集供暖使用的燃煤锅炉、还是农村煮饭取暖的小煤炉,都陆续在相关政策下被清洁能源进行替代。
 
    据了解,气虽是清洁能源,但燃烧进程中会发生氮氧化物,也是构成雾霾的成分之一。依照"十三五"时期的能源规划,从2014年到2020年,气消耗量将由146亿立方米增长到200亿立方米。如不采纳低氮改造,气燃烧将成为氮氧化物污染的主要来源,从而发生大量NOx.
 
    低氮燃烧器,望文生义就是指NOx排放在30~80毫克的燃烧器;NOx排放在30毫克以下的一般称为超低氮燃烧器。从NOx的发生机理来看,燃煤(气)锅炉操控NOx的技术也主要着眼于两个方向:降低燃烧火焰温度和降低氧含量,很多低氮燃烧器厂家都是根据锅炉低氮燃烧改造原理而设计而成的。
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