空冷器复合管束力学建模和数值模拟  

Mechanical Analysis and Numerical Simulation of Lined Pipe in Hydro-cracking Air Cooler

作　　者：偶国富[1] 黄军辉[1] 李剑敏[1] 

机构地区：[1]浙江理工大学多相流沉积-冲蚀实验室,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2011年第3期379-383,393,共6页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：国家高技术研究发展(863)计划基金(2009AA04Z422);国家自然科学基金(50976106);浙江省重大科技专项基金(2009C11069)

摘　　要：对加氢空冷器复合管束进行结构分离和解析,根据弹塑性力学方法获得复合管的力学分析控制方程,对内衬316L不锈钢的复合管进行应力场数值模拟,比较弹性力学和有限元数值模拟方法得到的应力分析结果相互吻合;分析复合管的极限工作载荷以及运行工况下的热应力,提出以结合强度为空冷器复合管束检验的指标,并对实际制造的复合管样品进行结合强度测试,结果满足相关国家标准,工程应用实现了设备长周期运行。The structure of lined pipe in hydro-cracking reactor effluent air cooler （REAC） is analyzed. The mechanical analysis of lined pipe is made and the governing equations are established for stress analysis by using the elastic-plastic mechanics method. The stress field of 316L stainless steel lined pipe is studied and the numerical simulation results are in consistent with theoretical analysis method. The thermal stress during running condition and the extreme operating load of lined pipe with different materials are obtained. The bonding strength is proposed to assess the quality of lined pipe. The actual produced stainless steel lined pipe is qualified after a series of inspections. It is shown that the lined pipe efficiently extend the running period of air cooler in engineering application.

关 键 词：复合管 加氢空冷器 力学分析 结合强度 

分 类 号：TB125[理学—工程力学] TB37[理学—力学]