| 环氧乙烷反应器泄漏原因分析与处理 |
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| 引用本文： | 牛颐宁.环氧乙烷反应器泄漏原因分析与处理[J].石油化工技术经济,2011(4). |
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| 作者姓名： | 牛颐宁 |
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| 作者单位： | 中国石化上海石油化工股份有限公司; |
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| 摘 要： | 通过对环氧乙烷反应器C-11环焊缝开裂现象的分析,确认低合金高强度淬火钢高残余应力焊缝在高温锅炉水中的应力腐蚀是造成反应器环焊缝开裂的主要原因。采用打磨消除裂纹后,用低匹配手工氩弧焊打底、等强度焊条手工电弧焊填充和盖面,焊前150℃预热和焊后350℃消氢等焊接工艺,对焊缝进行了修复。在工艺控制方面采取更换药剂以降低钠离子和溶解氧质量浓度以减少引起应力腐蚀的锅炉水溶质。
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| 关 键 词： | 反应器 应力腐蚀开裂 分析 处理 工艺控制 |
Analysis on Causes of Leakage of Ethylene Oxide Reactor and Treatment |
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| Niu Yining.Analysis on Causes of Leakage of Ethylene Oxide Reactor and Treatment[J].Techno-Economics in Petrochemicals,2011(4). |
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| Authors: | Niu Yining |
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| Institution: | Niu Yining (SINOPEC Shanghai Petrochemical Co.,Ltd.200540) |
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| Abstract: | Based on analysis of cracking of C - 11 circumferential weld of ethylene oxide reactor,it determined that the main cause of cracking of the welding line is stress corrosion of the low - alloy high - strength quenched steel high residual stress welding line in the high temperature boiler water.After polishing for eliminating the crack,the welding line was recovered though root - welding of low - matched manual argon arc welding,fill welding and cap welding of manual arc welding with welding rods of the same ... |
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| Keywords: | reactor cracking of stress corrosion analysis treatment process control |
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