| 生物质锅炉过热器气相HCl腐蚀的试验研究 |
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| 引用本文： | 印佳敏,吴占松.生物质锅炉过热器气相HCl腐蚀的试验研究[J].清华大学学报(自然科学版),2008,48(11). |
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| 作者姓名： | 印佳敏 吴占松 |
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| 作者单位： | 清华大学,热能工程系,热科学与动力工程教育部重点实验室,北京,100084 |
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| 摘 要： | 为了选择合适的生物质锅炉过热器管材以减少高温腐蚀,模拟生物质锅炉过热器区的气相条件,对管材20G和12Cr1MoVG进行了腐蚀试验研究.通过腐蚀增重量,得出了腐蚀动力学曲线.利用配有能谱分析仪的扫描电镜和X射线衍射仪,对试样腐蚀后的形貌结构、元素含量和腐蚀产物的组成进行了分析.试验结果表明:两种材料的抗腐蚀性能均较差,500℃以下20G略优于12Cr1MoVG;随着温度升高,两种材料的抗腐蚀性能均降低,且20G降低得较快.
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| 关 键 词： | 生物质锅炉 过热器 高温腐蚀 |
Experimental investigation of corrosion associated with gaseous HCl in the superheaters in a biomass boiler |
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| YIN Jiamin,WU Zhansong.Experimental investigation of corrosion associated with gaseous HCl in the superheaters in a biomass boiler[J].Journal of Tsinghua University(Science and Technology),2008,48(11). |
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| Authors: | YIN Jiamin WU Zhansong |
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| Institution: | YIN Jiamin,WU Zhansong(Key Laboratory for Thermal Science , Power Engineering of Ministry of Education,Department of Thermal Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Corrosion experiments with metals 20 G and 12Cr1MoVG were conducted by simulating the atmosphere of the superheaters in a biomass boiler to choose appropriate materials preventing high temperature corrosion.Corrosion dynamic curves were plotted using the mass gain.The metal elements were analyzed after the experiments using SEM(scanning electron microscope)-EDS(energy dispersive spectrometer) method and X-ray diffraction(XRD) to detect the appearance,the element contents and the compositions of the corrosio... |
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| Keywords: | HCl |
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