管束的纵向损伤及其防护技术研究现状  

Research status of longitudinal damage of tube bundle and its protection technology

作　　者：陈孙艺 CHEN Sunyi(The Challenge Petrochemical Machinery Corporation of Maoming,Maoming 525024,China)

机构地区：[1]茂名重力石化装备股份公司,广东茂名525024

出　　处：《压力容器》2024年第11期33-42,48,共11页Pressure Vessel Technology

基　　金：广东省科技创新战略专项资金项目(2022S002)。

摘　　要：针对管束受到纵向载荷作用引起的损伤及其防护技术不足的问题,通过对前人相关研究成果进行引证,列出管束在耐压试验的失稳情况,对装置开停车、操作运行和在线吹扫冲洗等不同历程的冲击损伤进行分析,以近年来失效案例加以验证。指出各案例结构变形特征中隐现的纵向失稳现象,提出了优化传统结构与开发创新结构的管束纵向防变形技术对策。管束创新结构包括结构加强型的组合管板,增设保护功能的双支持板,以及适用于在线反向吹扫的双头拉杆。研究结果为深化管束振动认识,完善管束防振对策,避免设备失效提供了新的思路。Regarding the problems of the damage to tube bundles caused by longitudinal load and the deficiency of its protection technology,by citing the relevant research findings of predecessors,the instability situations of tube bundles during withstand pressure tests were listed.The impact damages during different processes such as unit startup and shutdown,operation,and online purging and flushing were analyzed,and the failure cases in recent years were used to verify.The hidden longitudinal instability phenomenon that emerges in the structural deformation characteristics of each case was pointed out,the technical countermeasures for preventing longitudinal deformation of tube bundles were proposed,including optimizing traditional structures and developing innovative structures.The innovative structures of tube bundles include structurally enhanced composite tubes,dual support plates for additional protection,and double-ended tie rods for in-line reverse purging.The research results provide new ideas for deepening the understanding of tube bundle vibration,improving anti-vibration measures for tube bundles,and avoiding equipment failure.

关 键 词：管束 换热器 双头拉杆 组合管板 纵向失稳 冲击变形 

分 类 号：TH49[机械工程—机械制造及自动化] TQ051.5[化学工程]