Problems such as compatibility, ash deposit and corrosion which appear in industrial application of heat-pipe exchanger are analyzed, meanwhile, measures are brought forward.
The heat transfer characteristic of spiral-grooved pipe and its application result are introduced.
分析了螺旋槽管强化传热等特性，并介绍了应用效果。
3
The working principles, structure, and heat transfer characteristics of the gravity heatpipeheat exchangers, and their application in production of pyromellitic dianhydride anhydride were presented.