| 压缩机仪表引压管泄漏原因分析 |
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| 引用本文： | 孙寅辉,王宏洲,史洪微,张亚明,夏邦杰,董爱华. 压缩机仪表引压管泄漏原因分析[J]. 腐蚀科学与防护技术, 2007, 19(5): 380-383 |
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| 作者姓名： | 孙寅辉 王宏洲 史洪微 张亚明 夏邦杰 董爱华 |
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| 作者单位： | 中国石油天然气股份有限公司,辽阳石化分公司,辽阳,111003;中国科学院金属研究所,沈阳,110016 |
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| 摘 要： | 针对某炼油厂加氢裂化装置中的循环氢压缩机出口仪表引压管的氢泄漏事故，对该管的材料成分、金相组织、腐蚀状况、裂纹及断口等进行了分析.结果表明，该管的材质为316不锈钢；失效原因是由于在其管外壁的局部环境中氯化物的富集而发生点蚀，进而引发管子应力腐蚀开裂，最终造成管内氢气的泄漏.
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| 关 键 词： | 引压管 316不锈钢 泄漏 点蚀 应力腐蚀 |
| 文章编号： | 1002-6495（2007）05-0380-04 |
| 收稿时间： | 2005-12-30 |
| 修稿时间： | 2006-03-14 |
ANALYSIS OF LEAKAGE OF PRESSURED CONNECTING TUBE ON COMPRESSOR INSTRUMENT |
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| SUN Yin-hui,WANG Hong-zhou,SHI Hong-wei,ZHANG Ya-ming,XIA Bang-jie,DONG Ai-hua. ANALYSIS OF LEAKAGE OF PRESSURED CONNECTING TUBE ON COMPRESSOR INSTRUMENT[J]. Corrosion Science and Protection Technology, 2007, 19(5): 380-383 |
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| Authors: | SUN Yin-hui WANG Hong-zhou SHI Hong-wei ZHANG Ya-ming XIA Bang-jie DONG Ai-hua |
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| Affiliation: | 1. PetroChina Company Limited, Liaoyang Petrochmical Company, Liaoyang 111003 ; 2. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016 |
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| Abstract: | In order to reveal the cause of a hydrogen leakage of accident of a connecting tube for the measuring instrument to the outlet of a hydrogen-circulation compressor for hydrocracking unit in an oil refining factory, the material composition, microstructure, corrosion situation, crack and fracture of the connecting tube were analyzed. Results show that the material is 316 stainless steel, and the failure was due to pitting induced by chloride which was enriched from the enviroment in the medium in local areas of its exterior wall. The pitting then induced the stress corrosion crack, thus resulted in the leakage of the connecting tube. |
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| Keywords: | connecting tube 316 stainless steel leakage pitting stress corrosion |
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