寒冷地区空气源热泵采暖技术进展

Research Progress of Air Source Heat Pump Heating Technology in Cold Regions

【目的】随着我国碳中和、碳达峰目标的提出,空气源热泵采暖技术受到越来越多的青睐,但想要真正利用好空气源热泵系统,就要解决低温下空气源热泵效率低、工作不稳定等问题。【方法】本研究通过对比分析,以提高低温下空气源热泵能效为目的,从提高压缩机本身的性能、采用与其他热源相结合的多源耦合热泵系统、采用各种新型抑霜除霜方式和一些低温制冷剂等方面,进行全面总结和分析。【结果】目前,为提高低温下空气源热泵能效而总结出的研究方法有很多,但仍有问题需要解决。【结论】对低温下空气源热泵发展现状和存在问题进行全面分析,对比分析结果,对提高寒冷地区空气源热泵能效的深入研究具有参考价值。

[Purposes] With the goal of carbon neutralization and carbon peak in China,air source heat pump heating technology is more and more popular.However,in order to make good use of air source heat pump system,it is necessary to solve the problems of low efficiency and unstable operation of air source heat pump at low temperature.[Methods] Through comparative analysis,in order to improve the energy efficiency of air source heat pump at low temperature,this study comprehensively summarizes and analyzes the date from the aspects of improving the performance of compressor itself,multi-source coupled heat pump system combined with other heat sources and adopting various new anti-frost and defrosting methods and some low-temperature refrigerants.[Findings] At present,there are many research methods to improve the energy efficiency of air source heat pump at low temperature,but there are still problems to be solved.[Conclusions] The development status and existing problems of air source heat pump at low temperature are comprehensively analyzed.The comparative analysis results have reference value for further research on improving the energy efficiency of air source heat pump in cold regions.