燃煤锅炉还原区 H2S 生成模型研究与水冷壁腐蚀防治
打开文本图片集
中图分类号：TQ116;TP391.92 文献标志码：A 文章编号：1001-5922（2025）07-0114-03
Abstract：Inrecentyears，afterthe completion of ultra-low emisiontransformation of coal-fired units，theemission of nitrogenoxides has been efectively controlled.However，due to the wideapplication of low-nitrogencombustion technology，the reduction zone of coal-fired boiler has more reducing gases such as CO and H2 ，resulting in an increase in H2S concentration，further leading to high-temperature corrosion of water-cooled wall pipelines and affecting the safe operation of the unit.In this paper，the production mechanism of H2S was analyzed，and a model of H2 S generation easy toapplywasobtained，which was verified byactual measurements.Finally，the measures toreduce the high-temperature corrosion of the water wall were analyzed.
Keywords：coal-fired boiler;reduction zone; H2S ；model research；high-temperaturecorrosion
近年来，全国绝大部分燃煤机组完成超低排放改造，这使得氮氧化物污染物的排放得到了进一步降低。（剩余4209字）