中文摘要：

介绍国内外有关换热器内插件的种类、其强化传热原理、研究现状以及研究的发展方向。指出螺旋弹簧、螺旋纽带和＂洁能芯＂转子等内插件的两个主要作用：强化传热和在线清洗污垢,并总结出研究的新目标：以最小的阻力消耗为代价最大限度地提高换热效率。

英文摘要：

The type of heat exchanger inserts at home and abroad,the principle of heat transfer enhancement and the research status and the trends of heat exchanger inserts were reviewed.Two major roles of spiral springs,twisted tapes and ＂JNX＂rotors were heat transfer enhancement and online dirt cleaning.The new research target was to improve heat transfer efficiency greatly at the least cost of resistance consumption.