A tangentially fired boiler with twin furnace is tested to analyze the effect of such factors as primary air velocity, air distribution mode, over fired air, oxygen content on NOx and boiler efficiency during boiler combustion adjustment, providing reference for boiler operation optimization and reducing NOx emissions.

In an electrical plant,some tube leakages of supercritical boiler with W-shape flame took place during commissioning and trial operation.Basing on analysis about these leakages,remedy measures and treatment methods have been determined.What's more,technical measures about preventing the boiler tube leakage during boiler installation commissioning and trial operation have been put forward,which could offer a reference for other boilers.

对某电厂300MW机组锅炉运行过程中发生的凡起类似灭火事故进行了详细分析,发现了燃烧不稳是造成锅炉灭火的原因,指出了火检问题影响了对燃烧的判断以及机组采用小油抢技术降低了燃烧稳定性,进而提出了针对性的解决措施.

The electricity consumption of axial IDF and FGD booster fan in 300 MW units of a Henan power plant was huge. To gain the best energy-saving retrofit scheme, the necessary of retrofit was confirmed by analyzing the operation characteristics and operation optimization test. The IDF and FGD booster fan energy-saving estimate of some scheme was carried out by fan operation characteristics test. By analyzing technical economic, difficulty and reliability, frequency conversion retrofit for IDF was fixed to be the best scheme. FGD booster fan was suggested not to retrofit. This scheme has finer energy-saving effect, and the difference between the estimate value and real value of energy-saving is very small. The energy saving estimate, based on operation characteristic test, is quite accurate and can avoid some unfavorable situations possibly occurred in frequency conversion retrofit.

This paper introduced the way of resolving the higher slag quantity and it's higher content of carbon in boiler by testing,it provided available and economic running experience for the same type unit.