热力发电2018，Vol.47Issue(2)：103-107,5.DOI:10.19666/j.rlfd.201706055
基于FGR系统的新型低氮燃气燃烧器在燃气锅炉NOx排放中应用
Application of new low NOx gas burner based on FGR system in NOx emission from gas-fired boilers
摘要
Abstract
In recent years,the NOx emission from industrial and municipal gas-fired boilers remains at a relatively high level,and these gas-fired boilers usually have small capacity and large numbers.Reducing the NOx emission from gas-fired boilers has attracted much public attentions.In 2015,the Beijing government required that the NOx emission from the gas-fired boilers should be lower than 30 mg/m3.Then,in Zhengzhou,Xi'an,Qingdao and Chengdu,the relevant policies (NOx emission from gas-fired boilers should be below 30 mg/m3) have also been published.In order to meet the emission control requirements,low NOx gas burners equipped with flue gas recirculation (FGR) technology are widely applied to lower the NOx emission.However,this method has the problems of high NOx and CO emissions,unstable combustion,flame surge and deflagration.To solve this problem,this paper modified the low NOx gas burners for a 120 t/h gas-fired boiler based on the FGR technology.The results showed that the NOx emission could remain below 30 mg/m3 and the problem of blow-off and deflagration did not occur.This successful transformation lays a solid foundation for application of the new low NOx gas burner based on the FGR system.关键词
燃气锅炉/低氮燃气燃烧器/烟气再循环/NOx排放/超低排放Key words
gas-fired boiler/low NOx gas burner/flue gas recirculation/NOx emission/ultra low emission分类
能源科技引用本文复制引用
姬海民,王电,石敬恒,申冀康,周飞,韩键平,徐党旗,周虹光..基于FGR系统的新型低氮燃气燃烧器在燃气锅炉NOx排放中应用[J].热力发电,2018,47(2):103-107,5.基金项目
国家自然科学基金项目(51406166) （51406166）
国家科技支撑计划项目(2014BAA07B04)National Natural Science Foundation of China(51406166) （2014BAA07B04）
National Key Technology Support Program (2014BAA07B04) （2014BAA07B04）
