摘要
针对某超临界机组锅炉降低氮氧化物排放的要求,提出了低氮燃烧器改造方案。采用超浓缩煤粉燃烧与燃尽风摆动的立体错列分级低氮燃烧技术,将煤粉燃烧器改造为新型旋流耐磨陶瓷煤粉燃烧器,燃尽风燃烧器全部改造为上下摆动燃烧器,并对改造前后的锅炉试验数据进行比较,证明了优化改造后锅炉的氮氧化物有了大幅度降低。
To satisfy the NOx emission requirement of a certain supercritical boiler, a retrofit scheme was proposed by adopting air-staged low-NOx combustion technology, where super-concentrated pulverized coal is used, and all burners are of the swirl wear-resistant ceramic type, while the overfire air burners swing up and down. Operation results show that the NOx emission of boiler has been greatly reduced after the retrofit
出处
《发电设备》
2017年第4期276-279,285,共5页
Power Equipment
