本文采用ANSYS软件对插管式内翅片管的高温应力特性进行了数值研究,数值模拟结果表明,高温是产生大应力和大应变的主要原因,在内翅片与内管焊接的部位存在较大的应力区,在焊接过程中要保证此处的焊接质量,插管式内翅片管相对于传统内翅片管具有大幅降低热应力的优点,同时在承受高压方面也比原表面回热器具有更大的优势。 In this paper, ANSYS software was used to study the high-temperature stress characteristics of intubation-type fin tube. The numerical simulation results show that high temperature is the main reason for large stress and large strain. Large stress zone, in the welding process to ensure the quality of welding here, intubation-type finned tube with a traditional interior finned tube has the advantage of significantly reducing thermal stress, while also receiving high pressure than the original surface heat Appliances have greater advantages.