| 摘要: |
| 本文概述了CO2热泵目前在国内外的研究现状，总结了其在应用过程中的突出问题，分析了压缩机、换热器、节流装置等部件及系统的特点与缺陷，介绍了提高系统效率的最新技术手段，并对其在我国的发展予以展望。制约CO2热泵推广的原因主要为系统压力较高、制造工艺要求更严格及专用压缩技术尚不成熟等导致的开发成本高。CO2热泵未来研究内容主要为改良系统，优化部件及结合精准的计算机控制技术,实现软硬件同步发展，确保CO2热泵高效、安全、可靠地运行，促进自然工质在制冷与供热方面的研究与应用。可以预测，CO2热泵在我国将有较深入的发展。 |
| 关键词: CO2热泵 跨临界循环 综述 供热 制冷 |
| DOI： |
| Received:July 30, 2017 |
| 基金项目:国家自然科学基金(51606139) 和中国博士后科学基金(2016M590950，2017T100753) 资助项目。 |
|
| Research Status and Prospects of the CO2 Heat Pump |
|
Li Chun1, Wang Zhihua1,2, Wang Fenghao1,2, Xu Yibo1, Ji Kunchi1, Gao Xiuzhi1
|
| (1.School of Human Settlements and Civil Engineering, Xi’an Jiaotong University;2.Centre for Building Energy Conservation, Xi’an Jiaotong University) |
| Abstract: |
| The present research situation of CO2 heat pumps at home and abroad is reviewed, and the important problems in its application process are summarized in the paper. The characteristics and drawbacks of the components and systems, such as the compressor, heat exchanger, and throttle device, are introduced in detail. The latest technological means to improve the efficiency of the system are analyzed, and its development in China is forecasted. The primary reasons for restricting promotion of the CO2 heat pump is high development cost, strict processing technology, and immature, costly, dedicated compression technology. The main research content of the CO2 heat pump in the future is to improve the system, optimize the components, and to combine accurate computer control technology with the achievement of the simultaneous development of hardware and software, so that CO2 heat pump will be operated efficiently, safely, and reliably. It can be predicted that the CO2 heat pump will have promising development in China. |
| Key words: CO2 heat pump transcritical cycle review heating refrigeration |
