摘要
为有效解决煤粉工业锅炉使用中受限于锅炉吨位、时间空间尺度,低氮燃烧效率低等问题,提出了基于低氮燃烧器设备的新型燃烧利用工艺,并在40 t/h低压过热蒸汽煤粉工业锅炉进行了现场试验。试验结果表明:锅炉负荷较高时,NO_(x)初始排放质量浓度升高,低氧配风燃烧方式的低氮效率可达15%;空气分级配风能够降低锅炉NO_(x)初始排放质量浓度,空气分级时应保证三次风风速能够与中心火焰接触,增强空气分级的效果。
In order to effectively solve the problems of limited boiler tonnage, time and space scale, and low low-nitrogen combustion efficiency in the use of pulverized coal industrial boilers, a new combustion and utilization process based on low-nitrogen burner equipment was proposed. Field tests of superheated steam pulverized coal industrial boilers were carried out. The test results show that: when the boiler load is high, the initial emission mass concentration of NO_(x)increases, and the low-nitrogen efficiency of the low-oxygen air distribution combustion method can reach 15%;graded air distribution can reduce the initial emission mass concentration of NO_(x)from the boiler, it should be ensured that the wind speed of the tertiary air can contact the central flame to improve the effect of air classification.
作者
尹和平
刘凤波
王振华
刘进永
蔡武
YIN Heping;LIU Fengbo;WANG Zhenhua;LIU Jinyong;CAI Wu(Elion Clean Energy Technology(Wuwei)Co.,Ltd.,Wuwei 733000,Gansu,China)
出处
《能源与节能》
2022年第12期171-174,共4页
Energy and Energy Conservation
关键词
低氮燃烧
煤粉锅炉
空气分级
low-nitrogen combustion
pulverized coal boiler
air classification
