| 循环流化床锅炉水冷壁管爆管原因分析 |
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| 引用本文： | 王长生,刘华东,王威强.循环流化床锅炉水冷壁管爆管原因分析[J].中氮肥,2010(5):42-44. |
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| 作者姓名： | 王长生 刘华东 王威强 |
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| 作者单位： | 1. 中化平原化工有限公司,山东,平原,253100
2. 山东大学机械工程学院,山东,济南,250061;山东省特种设备安全工程技术研究中心,山东,济南,250061 |
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| 摘 要： | 某厂循环流化床锅炉水冷壁管发生爆管。通过对取样水冷壁管进行宏观观察、金相分析、电镜扫描分析、硬度测试得出结论:引起爆管的根本原因是水冷壁管受火侧结垢导致局部形成酸环境,发生氢腐蚀而造成的。最后提出了预防此类事故发生的措施。
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| 关 键 词： | 锅炉 结垢 氢腐蚀 水冷壁管 爆管 |
Probing Explosion of Water Cooling Tubes in CFB Boiler |
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| WANG Changsheng,LIU Huadong,WANG Weiqiang.Probing Explosion of Water Cooling Tubes in CFB Boiler[J].M-Sized Nitrogenous Fertilizer Progress,2010(5):42-44. |
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| Authors: | WANG Changsheng LIU Huadong WANG Weiqiang |
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| Affiliation: | 1. Sinochem Pingyuan Chemical Co., Ltd, Pingyuan 253100, China; 2. School of Mechanical Engineering, Shandong University, Jinan 250061, China; 3. Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Jinan 250061, China) |
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| Abstract: | The explosion was taken place at one of water cooling tubes in 75 t/h CFB boiler in some plant. The failure reasons are been detected by physical inspection combined with metallographic examination, SEM examination, and hardness test. It is scaling on inner surface of the tubes that create partial acid environment resulting in hydrogen corrosion. To prevent similar accident from occurring we put forward some measures at the end of the paper. |
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| Keywords: | boiler scaling hydrogen corrosion water cooling tubes tube explosion |
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