天然气分级燃烧器NOx排放的数值模拟研究  

Numerical Study on NOx Emission of a Gas-staged Burner

作　　者：丁冬冬[1] 刘道银[1] 梁财[1] 李家敏 解树超 刘太孝 邵萌萌 Ding Dongdong;Liu Daoyin;Liang Cai;Li Jiamin;Xie Shuchao;Liu Taixiao;Shao Mengmeng(Key Laboratory of Energy Thermal Conversion and Control of Ministry ofEducation, Southeast University, Nanjing 210096, China;Jiangxi Zhongchuan Navigation Instrument Co., Ltd., Jiujiang 332000, Jiangxi Province, China)

机构地区：[1]东南大学能源热转换及其过程测控教育部重点实验室,南京210096 [2]江西中船航海仪器有限公司,江西九江332000

出　　处：《发电设备》2020年第5期313-318,共6页Power Equipment

摘　　要：基于天然气分级燃烧器,采用数值模拟方法研究了燃料分级和烟气再循环对NOx生成的影响。结果表明:一级燃气体积流量占总燃气体积流量的比例从90.00%降到75.00%时,锅炉出口NOx质量浓度明显降低,从184 mg/m^3降低到127 mg/m^3;采用烟气再循环技术能够有效减少NOx排放。Taking the gas-staged burner as an object of study,the effects of fuel staging and flue gas recirculation on the NOx emission were studied by numerical simulation.Results show that when the volume proportion of primary gas decreases from 90%to 75%,the NOx emission at furnace outlet drops significantly from 184 mg/m^3 to 127 mg/m^3.The NOx emission could be reduced effectively by adopting the flue gas recirculation technology.

关 键 词：低NOX 燃烧器 天然气 燃料分级 烟气循环 

分 类 号：X511[环境科学与工程—环境工程]