| 裂解炉对流段预热器失效分析及寿命预测 |
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| 引用本文： | 关家锟.裂解炉对流段预热器失效分析及寿命预测[J].石油化工腐蚀与防护,1997,14(3):40-42. |
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| 作者姓名： | 关家锟 |
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| 作者单位： | 北京燕山石油化工公司化工一厂!北京市102500 |
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| 摘 要： | 对裂解炉对流段预热器泄漏的OCr18Ni9管材进行失效分析.认为失效是在内壁晶间腐蚀的基础上产生应力腐蚀所致.造成应力腐蚀的直接原因是吹尘器滴水.对未失效管还进行了常温和高温力学性能以及持久性能的测定并进行了剩余寿命的评估.
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| 关 键 词： | 裂解炉管 失效分析 晶间腐蚀 应力腐蚀开裂 |
Analysis of Failure of Preheatel for the convection Section of Cracking Furnace and Residual Life Estimate |
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| Guan Jiakun.Analysis of Failure of Preheatel for the convection Section of Cracking Furnace and Residual Life Estimate[J].Petrochemical Corrosion and Protection,1997,14(3):40-42. |
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| Authors: | Guan Jiakun |
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| Affiliation: | Guan Jiakun |
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| Abstract: | From the failure analysis of the leaked 0Cr18Ni9 tubes of the preheater for the convection section of the cracking furnace, it was concluded that the failure was caused by the stress corrosion resulting from grain boundary corrosion of tubes' internal wall. The direct cause of the stress corrosion was the dribbling of soot blower. The tubes in good condition were also tested for ambient-temperature and high-temperature mechanics performances and durability. The residual life was estimated. |
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| Keywords: | cracking furnace tube failure analysis grain boundary corrosion stress corrosion cracking |
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