[1]李文升,刘雪梅,朱正写,等.SLE型急冷换热器内管泄漏失效分析[J].石油管材与仪器,2020,6(03):38-41.[doi:10.19459/j.cnki.61-1500/te.2020.03.010]
 LI Wensheng,LIU Xuemei,ZHU Zhengxie,et al.Failure Analysis of Inner Tube Leakage of SLE Quench Heat Exchanger[J].Petroleum Tubular Goods & Instruments,2020,6(03):38-41.[doi:10.19459/j.cnki.61-1500/te.2020.03.010]
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SLE型急冷换热器内管泄漏失效分析
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《石油管材与仪器》[ISSN:2096-0077/CN:61-1500/TE]

卷:
6
期数:
2020年03期
页码:
38-41
栏目:
失效分析与预防
出版日期:
2020-06-20

文章信息/Info

Title:
Failure Analysis of Inner Tube Leakage of SLE Quench Heat Exchanger
文章编号:
2096-0077(2020)03--0038-04
作者:
李文升1刘雪梅2朱正写3尹成先1付安庆1
1. 中国石油集团石油管工程技术研究院,石油管材及装备材料服役行为与结构安全国家重点实验室 陕西 西安 710077;2. 兰州石化公司研究院 甘肃 兰州 730060; 3. 中国石油兰州石化公司石油化工厂 甘肃 兰州 730060
Author(s):
LI Wensheng1 LIU Xuemei2 ZHU Zhengxie3 YIN Chengxian1 FU Anqing1
1. State Key Laboratory for Performance and Structural Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute,Xi′an,Shaanxi 710077,China; 2. Research Institute of Lanzhou Petrochemical Company, Lanzhou, Gansu 730060, China; 3. CNPC Petrochemical Plant of Lanzhou Petrochemical Company, Lanzhou, Gansu 730060, China
关键词:
乙烯裂解炉SLE型急冷换热器穿孔泄漏高温氧化腐蚀
Keywords:
ethylene cracking furnace SLE quench heat exchanger perforation leakage high temperature oxidation corrosion
分类号:
TE965
DOI:
10.19459/j.cnki.61-1500/te.2020.03.010
文献标志码:
A
摘要:
某石化厂2018年SLE型急冷换热器内管长时间服役后发生穿孔泄漏事故,管内和管外介质分别为高温裂解气与高温蒸汽,为了确定该泄漏失效的原因,对失效样品进行了理化试验及数值模拟研究。能谱及XRD分析显示腐蚀产物主要成分为Fe3O4,腐蚀位置主要集中于急冷器入口附近;数值模拟显示其腐蚀位置与管内水沸腾区位置一致;试验分析结果表明,该内管泄漏失效主要是因为壳程侧介质沸腾引起的局部高温、流体冲刷和空泡腐蚀等因素共同作用而导致。
Abstract:
The inner tube of a SLE quench heat exchanger in a certain petrochemical plant experienced a perforation and leakage accident in 2018 after a longterm service. The flowing medium inside and outside the tube was hightemperature cracked gas and hightemperature steam respectively. Physichemical tests and numerical study were carried out based on the failure samples to find out the cause of failure. Energy spectrum and XRD analysis show that the main component of the corrosion product is Fe3O4, and the corrosion area is mainly located near the inlet of the quencher. The numerical simulation shows that the location of the corrosion is consistent with the water boiling zone. The results show that the direct cause of inner tube leakage is the coupling effect of local overtemperature, fluid erosion, cavitation corrosion and so on.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目:国家博士后科学项目“气田集输管道弯头内气液固冲刷腐蚀机理及预测技术研究”(项目编号:2019M663850) 第一作者简介:李文升,男,1986年生,博士后,2018年毕业于西安交通大学动力工程及工程热物理专业,获博士学位,现主要从事冲刷腐蚀与防护相关工作。E-mail: liwens@cnpc.com.cn
更新日期/Last Update: 2020-06-25