用于集中供热热力站补热的热泵系统优化与方案对比研究  

Study on the optimization and scheme comparison of heat pump system for heat supplement of heat station

作　　者：于力 常俊志 李永智 陈向荣 李楠 王乐 郑万冬[3] 万志豪 YU Li;CHANG Junzhi;LI Yongzhi;CHEN Xiangrong;LI Nan;WANG Le;ZHENG Wandong;WAN Zhihao(Hohhot Futai Heating Co.,Ltd.,Inner Mongolia,Hohhot 010020,China;North China Municipal Engineering Design and Research Institute Co.,Ltd.,Tianjin 300381,China;School of Environmental Science and Engineering,Tianjin University,Tianjin 300350,China)

机构地区：[1]呼和浩特富泰热力股份有限公司,内蒙古呼和浩特010020 [2]中国市政工程华北设计研究总院有限公司,天津300381 [3]天津大学环境科学与工程学院,天津300350

出　　处：《区域供热》2024年第6期92-106,共15页District Heating

摘　　要：为应对城市扩张和热源紧缺带来的集中供热热力站供热能力不足问题,以某热力站为研究对象,对比分析蒸汽压缩式热泵和吸收式热泵在提升热网供热能力中的效果。基于TRNSYS软件建立了两种热泵补热系统的仿真模型,利用双层协同优化方法,以经济性最优为目标,对系统的设计方案与运行策略进行协同优化,并从运行能耗、经济性、新增设备占地面积和地域适用性的角度对系统应用效果进行了对比分析。结果表明,在同一补热量下,蒸汽压缩式热泵补热系统一个供暖季的运行能耗比吸收式热泵补热系统高0.85%;蒸汽压缩式热泵补热系统的初投资较吸收式热泵补热系统约低100万元,但两者运行费用接近,总体上蒸汽压缩式热泵补热系统更具经济优势;蒸汽压缩式热泵补热系统中新增设备的占地面积比吸收式热泵补热系统小约30%;相比于寒冷地区,在热价更低的严寒地区采用吸收式热泵补热系统的经济性更优。因此,实际工程中应综合考虑地域条件、能源价格、场地空间等因素来制定热力站补热方案。In order to cope with the problem of insufficient heating capacity of heat station caused by urban expansion and shortage of heat sources,the effects of vapor compression heat pump scheme and absorption heat pump scheme in improving the heating capacity of heat network are compared by taking a heat station as the research object.Based on the TRNSYS platform,the simulation models of two heat pump systems were established,and the design scheme and operation strategy of the systems were co-optimized with the goal of optimal economy by using the two-layer collaborative optimization.Then the application effect of the systems was compared from the perspectives of operation energy consumption,economy,floor space for new equipment and regional applicability.The results show that under the same heat supply,the energy consumption of the vapor compression heat pump supplement system in one heating season is 0.85%higher than that of the absorption heat pump supplement system.The initial investment of the vapor compression heat pump supplement system is about 1 million yuan lower than that of the absorption heat pump supplement system,but the operating cost of the two is almost the same,so the overall economy of the vapor compression heat pump supplement system is better.The footprint of new equipment in the vapor compression heat pump supplement system is nearly 30%smaller than that of the absorption heat pump supplement system.Compared with cold regions,it is more economical to use absorption heat pump heating systems in severe cold regions where the heat price is lower.Therefore,the design of the heat station supplement scheme should be carried out by comprehensively considering the factors such as regional conditions,energy prices,and site space.

关 键 词：蒸汽压缩式热泵 吸收式热泵 补热 双层协同优化 TRNSYS模拟 

分 类 号：TU995[建筑科学—供热、供燃气、通风及空调工程]