摘要
某燃煤机组锅炉完成低氮燃烧器改造后,炉膛汽温偏高,在高负荷工况下易出现结焦问题。结合锅炉的结构特点,分析其燃烧特性及实际运行情况,采用加强燃料管理、控制制粉系统出口温度、调整燃尽风风门开度等优化措施,以减少锅炉结焦,保障机组的安全稳定运行。
After the low nitrogen retrofit of burner for a coal-fired unit boiler is completed,the furnace steam temperature is relatively high,prone to coking under high load conditions.The combustion characteristics as well as its actual operation conditions are analyzed in combination with the structural characteristics of the boiler.The optimization measures such as strengthening fuel management,controlling the outlet temperature of the pulverizing system and adjusting the opening degree of the over fired air damper are adopted,so as to reduce the coking of the boiler and ensure the safe and stable operation of the unit.
作者
刘会建
葛云中
孙广府
刘建航
LIU Huijian;GE Yunzhong;SUN Guangfu;LIU Jianhang(National Energy Heze Power Generation Co.,Ltd.,Heze 274032,China)
出处
《山东电力高等专科学校学报》
2023年第2期43-45,57,共4页
Journal of Shandong Electric Power College
基金
国家能源集团山东电力有限公司2022年度科技创新研究项目“智慧化燃烧效率分析系统研究与应用”(项目编号:GDSDDL-2022-11)。
关键词
W型火焰
低氮燃烧
结焦
燃烧特性
W-shaped flame
low nitrogen combustion
coking
combustion characteristic