小压比空气源热泵热管供热系统研究  

Research on Small Pressure Ratio Air Source Heat Pump Heat Pipe Heating System

作　　者：彭磊 张昌建 罗景辉 姜钊乐 杨国栋 牛靖 Peng Lei;Zhang Changjian;Luo Jinghui;Jiang Zhaole;Yang Guodong;Niu Jing(School of Energy and Environmental Engineering,Hebei University of Engineering,Handan,056038;Hebei HVAC Engineering Technology Innovation Center,Handan,056038;Hebei Metallurgical Construction Group Co.,Ltd,Handan,056038)

机构地区：[1]河北工程大学能源与环境工程学院,邯郸056038 [2]河北省暖通空调工程技术创新中心,邯郸056038 [3]河北冶金建设集团有限公司,邯郸056038

出　　处：《制冷与空调(四川)》2025年第1期94-102,共9页Refrigeration and Air Conditioning

基　　金：中央引导地方科技发展资助项目(236Z4310G);河北省暖通空调技术创新中心绩效补助项目(22567691H);太阳能PV/T热泵综合能源技术成果应用与示范(23211018120)。

摘　　要：为了解决传统空气源热泵技术在井口防冻应用中存在的低运行效率和供热不稳定等问题,以邢东矿井口供热项目为工程案例,介绍了小压比空气源热泵热管技术在井口防冻中的应用。通过将冷凝温度降低至30℃以降低压缩机的压缩比,并减少压缩机的涡旋行程来提高压缩机效率,设计了双氟制冷剂循环系统,研发了小压比空气源热泵机组及其配套的热管供热系统。通过典型工况日测试系统的换热量和COP,结果显示:在环境平均温度-12℃的条件下,井口送风温度保持在2℃以上,每台热管换热器平均换热量达302.9kW,系统的平均COP为4.12。在一个供暖季中,系统总供热量为1302175.8kW,平均COP为4.45,运行稳定,符合设计要求。与原蒸汽供热系统相比,该系统可节约运行费用12.9万元,经济效益显著,为推动新型井口供热技术的发展提供了参考。In order to solve the problems of low operating efficiency and unstable heating in the application of traditional air source heat pump technology in wellhead antifreeze,this study takes the Xingdong Mine Mouth Heating Project as an engineering case and introduces the application of low pressure ratio air source heat pump heat pipe technology in wellhead antifreeze.By reducing the condensation temperature to 30℃to lower the compression ratio of the compressor and reduce the vortex stroke of the compressor to improve its efficiency,a dual fluorine refrigerant cycle system was designed,and a low pressure ratio air source heat pump unit and its supporting heat pipe heating system were developed.By testing the heat transfer and COP of the system under typical working conditions,the results show that under the condition of an average ambient temperature of-12℃,the air supply temperature at the wellhead remains above 2℃,and the average heat transfer of each heat pipe heat exchanger reaches 302.9 kW.The average COP of the system is 4.12.In a heating season,the total heating capacity of the system is 1302175.8kW,with an average COP of 4.45,stable operation,and meets the design requirements.Compared with the original steam heating system,this system can save operating costs of 129000 yuan,with significant economic benefits,providing a reference for promoting the development of new wellhead heating technologies.

关 键 词：冷凝温度 压缩比 双氟制冷剂 小压比热泵机组 热管系统 

分 类 号：TU831.6[建筑科学—供热、供燃气、通风及空调工程]