带插件的钢管换热器是近几年国外新发展起来的新型金属换热器,我国马钢高速线材厂组合式步进炉和宝钢热带步进梁式炉都引进了这种换热器。马鞍山钢铁设计研究院在消化吸收国外技术的基础上,已与无锡周潭冶金机械厂合作生产出了这种换热器,并在新余钢铁厂650轧机加热炉和马钢二轧厂500/450轧机燃油加热炉上试用成功。本文介绍了为掌握带插件钢管换热器的热工性能所开展的试验研究情况,以及这种换热器在工业生产中的使用情况。 Pipe heat exchanger with plug-in is a new type of metal heat exchanger newly developed abroad in recent years. China’s Masteel high-speed wire rod mill and Baosteel’s walking step beam furnace all introduced such heat exchanger. Based on the digestion and absorption of foreign technologies, Maanshan Iron & Steel Design & Research Institute has cooperated with Wuxi Zhoutan Metallurgical Machinery Factory to produce such heat exchangers. At the same time, Mill fuel heater trial success. This article describes the experimental studies carried out to understand the thermal performance of steel pipe heat exchangers with inserts and the use of such heat exchangers in industrial production.