摘要
大修期间,某电厂对2号锅炉进行了低NOx燃烧系统改造,为了将锅炉调整到最佳的运行状态,进行了改造后的优化调整试验。结果表明:燃烧优化调整后,燃用印尼煤种、额定负荷下的NOx排放浓度为347mg/m3,与改造前相比,降幅达50.4%,达到了改造的预期目标;同时,烟气中CO排放浓度大幅降低,有效地减缓了炉内还原性腐蚀和结焦,锅炉热效率提高了约0.74个百分点,燃烧优化调整工作取得了显著的成效。
During the overhaul period, the No. 2 power plant boiler installed the low-NOx combustion systems. In order to optimize the run state of the boiler, the test has been carried out. The results show that after the burner retrofit, 390MW load, Indonesian coal, NOx emission concentration in the flue gas is around 347 mg/m3 , comparing with the former, the average decrease is 50. 4%, reached the expected goal. Meanwhile, the CO emission concentration in flue gas reduces significantly, slowing the corrosion effectively and reducing furnace coke. The boiler thermal efficiency improved by about 0.74 percentage, combustion optimal adjustment work has achieved remarkable results.
出处
《锅炉技术》
北大核心
2015年第3期70-74,共5页
Boiler Technology
关键词
低NOX燃烧器
CO排放浓度
锅炉热效率
优化调整
the low-NOx burner
CO emission concentration
boiler thermal efficiency
optimal adjustment
