采用管内插入物增强锅炉烟管的放热系数是行之有效的手段,它不影响换热器的机械强度,便于拆装、检修和更换。在设计烟管锅炉,特别是改造烟管锅炉中,它是最有希望的强化传热方式之一。本文介绍了内插物强化传热实验装置的设计调试,及其一种内插件——螺旋线圈强化传热的实验研究和有关理论探讨。 The use of in-tube inserts to enhance the exothermic coefficient of the boiler pipe is an effective means, it does not affect the mechanical strength of the heat exchanger, easy disassembly, maintenance and replacement. It is one of the most promising ways to enhance heat transfer in the design of a smoke tube boiler, especially a retrofit tube boiler. This paper introduces the design and commissioning of the enhanced heat transfer experiment apparatus for plugs, and an experimental study and theoretical discussion on the heat transfer enhancement of the spiral coil.