二氧化碳复叠式空气源热泵供暖系统运行测试分析  

Cascade Carbon Dioxide Air Source Heat Pump Heating Operation Test Analysis

作　　者：刘宇腾 王景刚 罗景辉 李永 张昌建 Liu Yuteng;Wang Jinggang;Luo Jinghui;Li Yong;Zhang Changjian(School of Energy and Environmental Engineering,Hebei University of Engineering,Handan,056038;Hebei HVAC Technology Innovation Center,Handan,056038;Hebei Institute of Building Research Co.,Ltd,Shijiazhuang,050200)

机构地区：[1]河北工程大学能源与环境工程学院,邯郸056038 [2]河北省暖通空调技术创新中心,邯郸056038 [3]河北省建筑科学研究院有限公司,石家庄050200

出　　处：《制冷与空调(四川)》2025年第2期190-197,共8页Refrigeration and Air Conditioning

基　　金：河北省创新能力提升计划项目“河北省暖通空调后补助经费”(2256769H)资助;河北省重点研发计划项目“太阳能、地热能、相变能多能互补(电、热、冷系统)关键技术与装备研发与示范”(236Z4310G)资助。

摘　　要：二氧化碳空气源热泵系统由于其清洁高效的优点,在实际生活生产中被广泛应用。为了分析复叠式二氧化碳空气源热泵的实际运行效果,对石家庄市某小区复叠式二氧化碳空气源热泵系统的运行情况进行了测试。根据实测运行数据显示,该系统在室外日均环境温度为-14.3℃-10℃工况下的日COP值在2.1-3.0之间,出水温度范围为36℃到52℃,且出水温度与制热量、耗电量及COP存在较好的线性关系。同时,该系统在某严寒期内的COP仍可保持在2.5-2.8。最后探究了四种不同工况下复叠式二氧化碳热泵系统的运行性能,数据显示,低温工况下,进出水温度衰减较大,而相对湿度过大造成的结霜情况则会导致平均制热量增大,分析上述四个工况可得,二氧化碳空气源热泵系统的COP在四种工况下受到的影响均较小,日COP保持在2.5左右,体现出该复叠式二氧化碳热泵系统较为优秀的性能。Due to its advantages of clean and efficient,carbon dioxide air source heat pump system is widely used in practical life and production.In order to analyze the actual operation effect of cascade carbon dioxide air source heat pump,the operation of cascade carbon dioxide air source heat pump system in a residential area of Shijiazhuang City was tested.According to the measured operation data,the total daily average COP value of the system is between 2.1-3.0,and the effluent temperature ranges from 36℃ to 52℃,and there is a good linear relationship between the effluent temperature and the heating capacity,power consumption and COP.At the same time,the daily COP of the system can still be maintained at 2.5-2.8 during a severe cold period.Finally,the operation performance of the cascade carbon dioxide heat pump system under four different working conditions was explored,and the data showed that the temperature attenuation of the inlet and outlet water was greater under low temperature conditions,and the frosting caused by excessive relative humidity would lead to the increase of average heat production,and the analysis of the above four working conditions showed that the COP of the carbon dioxide air source heat pump system was less affected under the four working conditions,and the total average daily COP was basically maintained at about 2.5,which also reflected the superior performance of the cascade carbon dioxide heat pump system.

关 键 词：复叠式空气源热泵 供暖 运行情况 

分 类 号：TB657.5[一般工业技术—制冷工程]