换热管管内插入物研究进展

摘要

换热管内插入物种类繁多，本文综述了国内外管内插入物结构的最新发展状况，结合国内外学者的实验和模拟研究结果，说明了不同管内插入物的技术特性，重点对自旋式管内插入物的各项性能进行比较分析，以期找出不同管内插入物的优点，寻求最优管内插入结构。%Several tube inserts are popularly used in heat exchangers. In general, the tube inserts can be classified into two categories: stationary inserts and self-rotating inserts. This paper focuses on reviewing the large number of experimental and numerical simulation works on inserts such as twisted tapes, miniature hydraulic turbine, etc. The heat transfer performance and frictional loss of various self-rotating inserts are compared to get the optimal configuration. Determining how to find the optimal self-rotating insert is the main objective.