乙烯装置冷干火炬夹套内管失稳变形的原因分析及对策

乙烯工业 ›› 2025, Vol. 37 ›› Issue (3): 52-57.

乙烯装置冷干火炬夹套内管失稳变形的原因分析及对策

余德江，李磊，张磊，哈达，张祜

中国石油独山子石化分公司，新疆独山子 833699

收稿日期:2024-06-16 修回日期:2024-12-25 出版日期:2025-09-25 发布日期:2025-09-28
作者简介:余德江，男，2009年毕业于西南石油大学化学工程与工艺专业，工学学士，现从事工艺技术管理工作，高级工程师。

Cause Analysis and Countermeasures for Buckling Deformation of Inner Tube in Jacket of Cold Dry Flare in Ethylene Plant

Yu Dejiang，Li Lei，Zhang Lei，Ha Da，Zhang Hu

PetroChina Dushanzi Petrochemical Company, Dushanzi, Xinjiang, P.C.833699

Received:2024-06-16 Revised:2024-12-25 Online:2025-09-25 Published:2025-09-28

摘要/Abstract

摘要：

某石化公司乙烯装置在工艺操作及事故排放时，发现在设备倒空置换及乙炔加氢反应器切换排冷干火炬过程中，出现火炬背压异常升高的现象，在2024年大检修中利用内窥镜及趴管机器人对冷干火炬夹套内管进行检查，发现内管存在严重变形。通过对冷干火炬日常操作、苛刻工况、管道设计等多方面参数进行核算，对内管变形的原因进行分析，针对性地制定了解决方案，确保了火炬系统的安全排放需求。

关键词: 乙烯装置 , 冷干火炬 , 夹套管 , 失稳变形

Abstract:

During the process operation and accident discharge of an ethylene plant, it was found that the back pressure of flare was abnormally increased during equipment emptying and purging as well as acetylene hydrogenation reactor switching and discharging to cold dry flare. During the major overhaul in 2024, endoscopes and tube robots were used to check the inner tube in jacket of the cold dry flare, and the inner tube was found to be severely deformed. The causes of inner tube deformation were analyzed by calculating the parameters of the cold dry flare including daily operation, harsh working conditions and piping design, and targeted solutions were developed to ensure the safe emission of the flare system.

Key words: ethylene plant, cold dry flare, jacket, buckling deformation

余德江, 李磊, 张磊, 哈达, 张祜. 乙烯装置冷干火炬夹套内管失稳变形的原因分析及对策[J]. 乙烯工业, 2025, 37(3): 52-57.

Yu Dejiang, Li Lei, Zhang Lei, Ha Da, Zhang Hu. Cause Analysis and Countermeasures for Buckling Deformation of Inner Tube in Jacket of Cold Dry Flare in Ethylene Plant [J]. Ethylene Industry, 2025, 37(3): 52-57.

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