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对空气源热泵除霜相关问题的研究现状进行分析总结。主要介绍了空气源热泵逆循环除霜的除霜原理,并从实验和模型模拟两方面分析了当前空气源热泵除霜的性能研究。最后从室外环境参数、空气源热泵结构、室外换热器结构参数和表面特性3个方面介绍了空气源热泵延缓结霜的研究现状,并介绍了当前对除霜性能改进的常用方法。为空气源热泵除霜问题的进一步研究和应用提供了参考。
The research status quo of air source heat pump defrosting is analyzed and summarized. This paper mainly introduces the defrosting principle of air source heat pump reverse cycle defrosting, and analyzes the performance of current air source heat pump defrosting from two aspects of experiment and model simulation. Finally, the research status of delaying frosting of air source heat pump is introduced from the aspects of outdoor environment parameters, air source heat pump structure, outdoor heat exchanger structural parameters and surface characteristics. The current methods of improving defrosting performance are introduced. It provides a reference for the further research and application of air source heat pump defrosting.