| ARGG装置烟气管道开裂原因 |
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| 引用本文： | 杨锦明.ARGG装置烟气管道开裂原因[J].石油化工腐蚀与防护,2002,19(1):35-37. |
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| 作者姓名： | 杨锦明 |
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| 作者单位： | 岳阳石油化工总厂烯烃厂,湖南,岳阳,414014 |
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| 摘 要： | 针对ARGG装置四旋至临界流速喷嘴间烟气管道开裂情况 ,分析了腐蚀失效机理 ,指出硝脆、硫酸露点腐蚀和诸多应力的存在使烟气管道产生了应力腐蚀开裂。将原设计的两路管道改为一路 ,避免冷壁产生 ,可使应力腐蚀得到控制
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| 关 键 词： | 烟气管道 临界流速喷嘴 应力腐蚀 失效 |
| 修稿时间： | 2001年10月25 |
Cracking of Flue Gas Pipeline in ARGG Unit |
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| Yang Jinming.Cracking of Flue Gas Pipeline in ARGG Unit[J].Petrochemical Corrosion and Protection,2002,19(1):35-37. |
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| Authors: | Yang Jinming |
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| Abstract: | The corrosion failure mechanism was analyzed based upon the cracking of the flue gas pipeline between VI cyclone to critical velocity nozzle in ARGG unit. It was pointed that the corrosion cracking occurred because of nitrate embrittlement, dew point corrosion of sulfuric acid and existence of various stresses. The elimination of the cold wall by combining two pipelines into one has controlled the stress corrosion. |
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| Keywords: | flue gas pipeline critical velocity nozzle stress corrosion failure |
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