| 高压加氢装置热高分换热器管束腐蚀原因分析 |
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| 引用本文： | 向长军,穆澎淘,易强.高压加氢装置热高分换热器管束腐蚀原因分析[J].炼油技术与工程,2011,41(8):31-34. |
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| 作者姓名： | 向长军 穆澎淘 易强 |
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| 作者单位： | 中国石油克拉玛依石化公司,新疆克拉玛依市,834003 |
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| 摘 要： | 分析了中国石油克拉玛依石化公司润滑油高压加氢装置热高分油气/循环氢高压换热器不锈钢管束腐蚀泄漏的原因。通过宏观检测、涡流检测、材质分析、腐蚀产物分析等技术手段,认定由于在管束内形成NH4C l结晶,导致垢下腐蚀和紊流状态下的冲蚀。从技术上和管理上提出了应对措施,通过控制材质升级、工艺温度调整、增加工艺注水点等,确保了设备的长周期运行。
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| 关 键 词： | 腐蚀 高压换热器 管束 高压加氢 NH4Cl冲蚀 |
Analysis of corrosion in tube bundle of heat exchanger of hot high-pressure separator in high-pressure hydrogenation unit |
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| Xiang Changjun,Mu Pengtao,Yi Qiang.Analysis of corrosion in tube bundle of heat exchanger of hot high-pressure separator in high-pressure hydrogenation unit[J].Petroleum Refinery Engineering,2011,41(8):31-34. |
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| Authors: | Xiang Changjun Mu Pengtao Yi Qiang |
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| Affiliation: | Xiang Changjun,Mu Pengtao,Yi Qiang(PetroChina Karamay Petrochemical Company,Karamay,Xinjiang 834003) |
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| Abstract: | The causes of corrosion leakages in stainless steel tube bundles of high-pressure oil vapor/recycle gas heat exchanger of high-pressure lube oil hydrogenation unit of PetroChina Karamay Petrochemical Company are analyzed.The macro testing,eddy current testing,material analysis and corrosion products analysis,etc have confirmed that the under-deposit corrosion and impingement erosion under turbulent current are caused mainly by NH4Cl crystallization inside the tubes.Corresponding corrective measures have bee... |
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| Keywords: | corrosion high-pressure heat exchanger tube bundle high-pressure hydrogenation NH4Cl impingement erosion |
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