石油化工设备技术 ›› 2019, Vol. 48 ›› Issue (2): 57-60,66.doi: 10.3969/j.issn.1006-8805.2019.02.014

• 材料与焊接 • 上一篇    下一篇

炼化反应器环缝焊接变形对运行的影响及对策

刘恒,陈孙艺   

  1. 茂名重力石化装备股份公司,广东 茂名 525024
  • 收稿日期:2018-11-01 接受日期:2019-02-25 出版日期:2019-06-13 发布日期:2019-06-13
  • 作者简介:刘恒,男,2008年毕业于西安交通大学材料专业,学士,主要从事炼油化工设备焊接技术研究和项目管理工作,工程师。Email:mmzlsj@163.com

Impacts of Circumferential Welding Distortion on the Operation of Oil and Chemical Reactors and the Countermeasures

Liu Heng, Chen Sunyi   

  1. The Challenge Petrochemical Machinery Corporation of Maoming, Maoming, Guangdong, 525024
  • Received:2018-11-01 Accepted:2019-02-25 Online:2019-06-13 Published:2019-06-13

摘要: 为了避免炼油化工重大反应器,例如焦化反应器、重整反应器、〖JP2〗气相反应器以及脱氢反应器制造中环焊缝变形对其运行质量的不良影响,文章对各种影响因素进行了探讨,并重点分析了焊接导致变形这一主要因素。针对某个具体筒体环缝焊接建立了有限元模型进行塑性变形模拟计算,然后和试验记录结果进行了比对,证实了有关分析。在此基础上,对制造中预防环缝焊接变形提出了一些技术对策,应用于产品取得实效。

关键词: 炼油, 化工, 重大反应器, 环缝焊接, 变形, 对策

Abstract: In order to avoid the adverse impacts on operation quality caused by circumferential joint welding deformation for oil refining and chemical major reactors such as coking reactor, reformer, gas phase reactor and dehydrogenation reactor during the manufacturing process, this paper discusses various influencing factors and focuses on analyzing the main factor which is deformation caused by welding. A finite element model was established for a specific cylinder circumferential welding to carry out a simulation calculation of the plastic deformation. Then the results were compared with the test records to confirm the relevant analysis. On this basis, some technical countermeasures are proposed to prevent circumferential welding deformation in manufacturing. They are applied to the products and practical results are obtained.

Key words: oil refining, chemical, major reactor, circumferential welding, deformation, countermeasures