330MW机组锅炉低氮燃烧改造及效果分析

华电技术 ›› 2016, Vol. 38 ›› Issue (1): 59-61.

330MW机组锅炉低氮燃烧改造及效果分析

江苏华电扬州发电有限公司，江苏扬州〓225007

出版日期:2016-01-25

Low NOx combustion retrofit of boilerand its effect analysis for 330MW power unit

Jiangsu Huadian Yangzhou Power Generation Company Limited,Yangzhou 225007,China

Published:2016-01-25

摘要/Abstract

摘要：

摘要：某电厂#6机组空气预热器出口NOx排放质量浓度达655.7mg/m³，为满足新标准排放要求，采用多空气分级、水平浓淡分离的煤粉燃烧技术对锅炉燃烧器进行了低氮燃烧改造，在炉膛内沿垂直方向和水平方向进行多次空气分级。改造后的锅炉性能试验表明，空气预热器出口NOx排放质量浓度可长期保持在300mg/m³以下，锅炉效率、飞灰中可燃物含量符合要求，改造效果显著。

关键词: 关键词：燃烧器；低氮燃烧；NOx, 空气分级；水平浓淡分离

Abstract:

Abstract:The NOx emission concentration of an air preheater is up to 655.7mg/m³ for the No.6 unit of a certain power plant.In order to meet the emission requirement of new standard,a low NOx combustion retrofit of boiler burners conducted using a multi air stereo staged and horizontal bias coal combustion technology,which carries out a multi air stereo staged combustion along the vertical direction and horizontal direction in the chamber of a stove.The performance test of the retrofitted boiler shows that the retrofit effect is significant with the NOx emission concentration of an air preheater could be kept below 300mg/m³for a long time,and the boiler efficiency and combustible matter content in flue dust are also meeting the requirements.

Key words: Keywords:burner, low NOx combustion, NOx, air stereo staged combustion, horizontal bias

樊爱兵. 330MW机组锅炉低氮燃烧改造及效果分析[J]. 华电技术, 2016, 38(1): 59-61.

FAN Aibing. Low NOx combustion retrofit of boilerand its effect analysis for 330MW power unit[J]. Huadian Technology, 2016, 38(1): 59-61.