管壳式相变蓄热换热器的研究进展

Research Progress of Shell-and-tube Heat Exchanger of Latent Heat Storage

本文针对不同管壳式结构对管壳式相变蓄热换热器蓄/放热性能的影响,分别从结构形式、布置方式、肋片设置和运行参数4方面进行了概述,总结了已有结构形式和肋片优化设置存在的问题。提出了未来重点研究方向:无量纲参数下的蓄/放热性能研究;不抑制相变材料自然对流的非均布肋片优化设置;充分利用相变材料自然对流和流体传热面的新型结构形式;能同时蓄热和高效供热的新设备研发。

This paper summarizes the effects of different shell and tube structures on heat storage/release performance of shell-and-tube heat exchanger of latent heat storage in terms of structural form,arrangement,fin settings and operating parameters.Shortcomings of existing structure types and optimized fin settings are summarized.Future key research directions are research on heat storage/release performance under dimensionless parameters,optimization of non-homogeneous fin setup without inhibiting the natural convection of phase change materials,new structures that make full use of the natural convection of phase change materials and fluid heat transfer surfaces,and the development of new equipment that can store heat and supply heat efficiently at the same time.