宽温域工况下热泵技术应用的研究进展  

Research Progress in Application of Heat Pump Technology under Wide Temperature Range Conditions

作　　者：周易 张时华 徐笑锋 ZHOU Yi;ZHANG Shihua;XU Xiaofeng(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Highly Appliances Co.,Ltd.,Shanghai 201206,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]上海海立电器有限公司,上海201206

出　　处：《制冷技术》2024年第1期82-86,共5页Chinese Journal of Refrigeration Technology

摘　　要：为了研究实际运行中环境温度过低或目标供热温度较高工况下,热泵系统的性能系数及压缩机的可靠性,单级压缩循环已经不能满足供热需求。本文梳理了宽温域工况下热泵系统的应用现状,从补气增焓、双级压缩、复叠系统等技术分析了影响其系统能效的因素,相应热泵系统制热量较单级压缩系统可相对提高12%~15%。展望了宽温域工况下热泵技术的发展趋势与研究重点,对热泵技术进一步推广应用具有一定实际意义。To study the coefficient of performance of the heat pump system and the reliability of the compressor when the ambient temperature is too low or the target heating temperature is too high in actual operation,the single-stage compression cycle can no longer meet the heating demand.The current application status of heat pump systems under wide temperature range conditions is summarized,and the factors that affect the energy efficiency of the system from technologies such as enhanced vapor injection,two-stage compression,and cascade systems are analyzed in this paper.The corresponding heat pump system can relatively increase the heating capacity by 12%to 15%compared to single-stage compression systems.The development trend and research focus of heat pump technology under wide temperature range conditions are prospected.This has practical significance for further promoting and applying heat pump technology.

关 键 词：热泵技术 补气增焓 双级压缩 复叠系统 性能系数 

分 类 号：TB611[一般工业技术—制冷工程] TQ051.5[化学工程]