| 硫磺回收装置尾气焚烧余热锅炉炉管失效分析及防护建议 |
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| 引用本文： | 吕庆欢,马金伟,陈韶范,张向南,马一鸣,赵明明,梅光旭.硫磺回收装置尾气焚烧余热锅炉炉管失效分析及防护建议[J].石油化工设备,2021(2):68-71. |
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| 作者姓名： | 吕庆欢 马金伟 陈韶范 张向南 马一鸣 赵明明 梅光旭 |
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| 作者单位： | 甘肃蓝科石化高新装备股份有限公司;上海蓝滨石化设备有限责任公司 |
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| 基金项目： | 国家科技重大专项:尾气余热回收锅炉高效换热结构设计与管接头连接技术研究(2016ZX05017-006)。 |
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| 摘 要： | 针对某公司克劳斯硫磺回收装置尾气焚烧余热锅炉炉管发生局部腐蚀和穿孔泄漏的问题,采用腐蚀形貌宏观检测、金相组织分析及化学成分分析等失效分析方法确定炉管失效的原因。分析结果表明,在焚烧炉停工期间,炉管外壁发生酸露点腐蚀,造成水冷壁和液包接管穿孔泄漏。针对余热锅炉炉管失效原因提出了相应的防护建议。
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| 关 键 词： | 余热锅炉 炉管 泄漏 失效分析 酸露点腐蚀 |
Failure Analysis and Protective Measures of Boiler Tubes of an Exhaust Gas Waste-heat Boiler in a Sulfur Recovery Unit |
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| LU Qing-huan,MA Jin-wei,CHEN Shao-fan,ZHANG Xiang-nan,MA Yi-ming,ZHAO Ming-ming,MEI Guang-xu.Failure Analysis and Protective Measures of Boiler Tubes of an Exhaust Gas Waste-heat Boiler in a Sulfur Recovery Unit[J].Petro-Chemical Equipment,2021(2):68-71. |
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| Authors: | LU Qing-huan MA Jin-wei CHEN Shao-fan ZHANG Xiang-nan MA Yi-ming ZHAO Ming-ming MEI Guang-xu |
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| Affiliation: | (Lanpec Technologies Limited,Lanzhou 730070,China;Shanghai Lanbin Petrochemical Equipment Co.Ltd.,Shanghai 201518,China) |
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| Abstract: | Corrosion and perforation leakage were found in the boiler tubes of an exhaust gas waste-heat boiler in a sulfur recovery plant.The failure analysis of chemical component,metallographic structure analysis and morphology analysis were carried out on the leakage tubes.The analysis results show that during the plant shutdown,acid dew point corrosion occurred on the outer wall of the furnace tube,which caused perforation and consequential leakage.Corresponding protection suggestions regarding the failure reason of the waste heat boiler tubes were put forward. |
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| Keywords: | waste heat boiler tube leakage failure analysis acid dew point corrosion |
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