| 催化装置烟气管线阀门失效分析 |
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| 引用本文： | 贾涛,陈旭,高瑾,李晓刚.催化装置烟气管线阀门失效分析[J].腐蚀科学与防护技术,2007,19(2):148-150. |
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| 作者姓名： | 贾涛 陈旭 高瑾 李晓刚 |
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| 作者单位： | 北京科技大学,材料科学与工程学院,腐蚀与防护中心,北京,100083;北京科技大学,材料科学与工程学院,腐蚀与防护中心,北京,100083;北京科技大学,材料科学与工程学院,腐蚀与防护中心,北京,100083;北京科技大学,材料科学与工程学院,腐蚀与防护中心,北京,100083 |
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| 摘 要： | 重油催化装置烟气管线阀密封面磨损严重、发生内漏造成装置停工，通过分析阀座的化学成分、硬度、微观组织以及操作条件对阀门的影响，认为阀门失效的原因是：阀门结构设计不合理及烟气管线内流体夹带固体粉末在高温下的冲蚀先造成了阀座密封面磨损，导致阀门失效.
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| 关 键 词： | 阀门 密封面 冲蚀 失效 |
| 文章编号： | 1002-6495（2007）02-0148-03 |
| 收稿时间： | 2006-04-26 |
| 修稿时间： | 2006-06-27 |
FAILURE ANALYSIS ON DISABLED SEAL OF CATALYST GAS OUTLET VALVE |
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| JIA Tao,CHEN Xu,GAO Jin,LI Xiao-gang.FAILURE ANALYSIS ON DISABLED SEAL OF CATALYST GAS OUTLET VALVE[J].Corrosion Science and Protection Technology,2007,19(2):148-150. |
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| Authors: | JIA Tao CHEN Xu GAO Jin LI Xiao-gang |
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| Affiliation: | Corrosion and Protection Center,Material Science and Engineering School, USTB,Beijing 100083 |
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| Abstract: | The seal of catalyst gas outlet vavle was abraded badly which resulted in shut - down maintenance. Chemical composition, hardness, and micro-appearance analysis were used to investigate the disabled valve seat, and operating condition which influenced the life of valve was also analyzed. Results indicated that structural design was unreasonable and the catalyst mingled with high temperature gas scoured the seal of valve seat, which caused the valve to failure. |
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| Keywords: | valve seal scour failure |
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