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在分析粉煤燃烧环境对燃煤电厂锅炉蒸汽发生器的过热器 再热器腐蚀的影响的基础上 ,讨论了不锈钢和耐蚀合金在实验室模拟煤灰 烟气腐蚀试验及在锅炉燃煤环境中暴露后的耐蚀性 ,得出过热器 再热器管材用合金中的铬含量应在 2 5 %以上 ,提高材料的铬含量可明显降低管材的腐蚀速率
Based on the analysis of the influence of pulverized coal combustion environment on the corrosion of superheater reheater of boiler steam generator in coal-fired power plant, the corrosion tests of stainless steel and anticorrosive alloy in simulated flue gas from coal ash in a laboratory are discussed. After exposure to corrosion resistance, obtained superheater reheater tube alloy with chromium content should be 25% or more, improve the material chromium content can significantly reduce the corrosion rate of the pipe