80VOL.43No.4W型火焰锅炉腐蚀特性及防腐蚀措施研究王妮妮,杨靖,张斌,赵佰波(山东电力工程咨询院有限公司,山东济南250013)摘要:W型火焰锅炉运行过程中存在炉膛水动力安全和腐蚀性的问题,针对以上技术难点,以某660MW超超临界W型火焰锅炉为研究对象,从提高抗腐蚀能力方面对其进行研究,提出了相关防腐蚀措施以保证机组的稳定运行。结果表明,在不同温度及SO2浓度下,随着温度升高和SO2浓度增高,Super304、TP310和TP347三种不锈钢材料的腐蚀速度均加快。合理布置燃烧器和受热面位置,并对易腐蚀部件采用喷涂技术等措施可以有效防止高温腐蚀。研究结论可为660MW超超临界W型火焰锅炉的工程应用提供技术指导。关键词:W型火焰锅炉;腐蚀特性;防腐蚀措施;受热面材料中图分类号:TK224.9文献标识码:ADOI:10.16189/j.nygc.2023.04.012Investigationonthecorrosioncharacteristicsandanti-corrosionmeasuresofW-FlameboilerWANGNini,YANGJing,ZHANGBin,ZHAOBaibo(ShandongElectricPowerEngineeringConsultingInstitueCorp.LTD.,Jinan250013,china)Abstract:ThehydrodynamicsafetyandcorrosivityproblemsinthefurnaceaffecttheoperationofW-flameboiler.Toimprovetheseproblems,takinga660MWultra-supercriticalW-flameboilerasthesubject,theanti-corrosionmeasureswasproposedtoimprovethecorrosionresistanceoftheboilerandensuretheoperationsafetyandstabilityoftheunit.TheresultsshowthatunderdifferenttemperatureandSO2concentrations,withtheincreaseintemperatureandSO2concentrations,thecorrosionratesofSuper304,TP310andTP347stainlesssteelmaterialsareaccelerated.Inaddition,theproperarrangementofcombustorandheatingsurface,andtheapplicationofsprayingoncorrosivepartscaneffectivelypreventhigh-temperaturecorrosion.Theresearchcanprovidetechnicalguidancefortheengineeringapplicationof660MWultra-supercriticalW-flameboiler.Keywords:W-flameboiler;corrosionperformance;anti-corrosionmeasures;materialofheatingsurface收稿日期:2023-03-09作者简介:王妮妮(1978-),女,山东济南人,硕士,从事火电厂热机设计工作。运行维护0引言近年来,超超临界锅炉技术发展迅速,锅炉蒸汽温度、压力进一步提高[1]。无烟煤作为锅炉的主要燃料,储量丰富、分布广泛,随着我国晋东南及川南、黔西无烟煤的进一步开发利用,...