[1]刘蕊,岳增武.燃用生物质锅炉末级过热器管腐蚀原因分析[J].热力发电,2013,(02):98-100.
　LIU Rui,YUE Zengwu.Corrosion of TP347H final superheater on a biomass boiler[J].Thermal Power Generation,2013,(02):98-100.
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燃用生物质锅炉末级过热器管腐蚀原因分析

《热力发电》[ISSN:1002-3364/CN:61-1111/TM] 卷: 期数: 2013年02期 页码: 98-100 栏目: 发电技术论坛 出版日期: 2013-02-15
Title:
Corrosion of TP347H final superheater on a biomass boiler
作者:
刘蕊;  岳增武
山东电力研究院，山东济南250002
Author(s):
LIU Rui; YUE Zengwu
Shandong Electric Power Research Institute,Shandong Electric Power Corporation,Jinan 250002,Shandong Province,China
关键词:
锅炉; 过热器; 腐蚀; TP347H; 碱金属; 生物质; 氯离子
分类号:
TK223.3+2
文献标志码:
B
摘要:
某台燃用生物质锅炉在累计运行4 000 h后，末级过热器管(材质为TP347H)外壁发生了较严重的腐蚀，对腐蚀部位进行显微组织、能谱成分及X射线衍射分析。结果表明，末级过热器管存在均匀腐蚀及晶界腐蚀；腐蚀层主要含Cl、K离子而Cr含量相对较低；晶界腐蚀产物主要为Cr和Fe的氧化物，其中Cr含量较高。分析认为生物质中的氯离子是导致管外壁快速腐蚀的主要原因，而碱金属与Fe等其它元素形成的低熔点共晶体促进了腐蚀过程。对此，提出去除燃料中的部分K和Cl，将生物质与煤混燃等措施。

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备注/Memo

刘蕊（1980-），女，毕业于兰州大学，工程师，从事电站设备金属材料失效分析、寿命评估等的研究。

更新日期/Last Update: 2013-02-15