空气源热泵集中供暖系统调节理论分析  

Theoretical analysis on regulating modes of air source heat pump system for central heating

作　　者：汪保利 林木森 李天普 Tuomas Laine 倪龙 Wang Baoli;Lin Musen;Li Tianpu;Tuomas Laine;Ni Long(China Railway Siyuan Group Southwest Survey and Design Co.,Ltd.;School of Architecture,Harbin Institute of Technology;Key Laboratory of Cold Region Urban and Rural Human Settlement Environments Science and Technology,Ministry of Industry and Information Technology;Shandong Fude New Energy Equipment Co.,Ltd.;Granlund Oy)

机构地区：[1]中铁四院集团西南勘察设计有限公司 [2]哈尔滨工业大学建筑学院 [3]寒地城乡人居环境科学与技术工业和信息化部重点实验室 [4]山东福德新能源设备有限公司 [5]沁沅信息技术有限公司

出　　处：《制冷与空调》2024年第4期73-79,共7页Refrigeration and Air-Conditioning

基　　金：国家重点研发计划项目(2021YFE0116100)。

摘　　要：空气源热泵已广泛应用于华北等地区的集中供暖,但目前鲜有关于其调节方式的研究。为了提升空气源热泵的节能效果,本文建立空气源热泵集中供暖系统的数学模型,该模型考虑结除霜损失和启停损失,基于该模型提出3种适合于空气源热泵的调节方式,应用该模型对北京等7个城市的集中供暖系统进行研究。结果表明,结除霜损失修正和启停损失修正均对机组的耗电量及季节性能系数(SCOP)产生重要影响:结除霜损失修正使机组的耗电量增大3.85%~17.41%,SCOP降低3.72%~14.83%,启停损失修正的影响会随着供暖面积的增大逐渐降低;采用不同调节方式时,机组的耗电量变化不大,水泵节能80.97%~86.46%,系统节能8.47%~11.87%。Air source heat pump(ASHP)has been widely used in Northern China for central heating.However,there is few research on its regulating modes till now.To improve the energy-saving effect of AHSP,a simulation model considering the energy loss caused by frosting/defrosting and on-off,is developed.Based on this model,three regulating modes suitable for ASHP are proposed.Then the central heating systems in Beijing and six other cities are investigated using this model.The results show that both the energy loss corrections of frosting/defrosting and on-off have evident impacts on the power consumption and seasonal coefficient of performance(SCOP);the power consumption of unit is increased by 3.85%-17.41%,and SCOP of unit is decreased by 3.72%-14.83%caused by frosting/defrosting correction.The influence of the energy loss caused by on-off decreases gradually with the increase of heating area.Using different regulating modes,power consumption of ASHP unit changes slightly,while the energy-saving rate of water pump could reach 80.97%-86.46%,and the energy-saving rate of system could reach 8.47%-11.87%.

关 键 词：空气源热泵 集中供暖 结除霜损失修正 启停损失修正 调节 

分 类 号：TB6[一般工业技术—制冷工程]