供热系统运行调节模型及评价指标研究  

Operation and Regulation Model and Evaluation Indicators of Heating Systems

作　　者：郑立红 周志华(指导)[1] 石万亮 ZHENG Lihong;ZHOU Zhihua;SHI Wanliang(Tianjin University,Tianjin 300354,China;Tianjin Eco-city Green Building Research Institute,Tianjin 300467,China)

机构地区：[1]天津大学,天津300354 [2]天津生态城绿色建筑研究院有限公司,天津300467

出　　处：《建筑节能（中英文）》2024年第12期107-113,共7页Building Energy Efficiency

摘　　要：针对供热系统二次管网热量分配与调控不精细、评价指标单一的问题,建立了基于空间维度的多级运行调节优化模型,其优势是可以实现各支路流量分配和个性化调节,充分挖掘支路的节能潜力,进而降低供热系统的能耗。为了评估运行调节策略的可行性和最优运行方案,分别采用德尔菲法、熵权法和综合赋值法确定权重系数,提出了基于舒适性、经济性和节能低碳性的多目标综合评价指标,得出结论为二级运行调节效果优于三级运行调节效果优于一级运行调节效果。以天津某项目为例,按照二级运行调节方法提升改造后,耗热量降低18.07%,耗电量降低10.86%,每年采暖运行费用节约2.44元/m^(2)。多级运行调节方式及评价指标的研究为系统调控策略的确定提供了理论基础。In response to the problems of imprecise heat distribution and regulation in the secondary pipeline network of the heating system,as well as single evaluation indicators,this paper establishes a multi-level operation and regulation optimization model based on spatial dimensions.Its advantage is that it can achieve flow distribution and personalized regulation of each branch,fully tap into the energy-saving potential of the branch,then reduce the energy consumption of the heating system.In order to evaluate the feasibility of operational regulation strategies and the optimal operation plan,the Delphi method,entropy weight method,and comprehensive assignment method were used to determine weight coefficients.A multi-objective comprehensive evaluation index based on comfort,economy,and energy conservation and low-carbon was proposed,and the conclusion was drawn that the effect of the second level regulation was better than that of the third level regulation.The conclusion is that the second level regulation is more effective than the third level regulation,and the third level regulation is better than the first level regulation.Taking a project in Tianjin as an example,after the improvement and retrofit using the secondary operation regulation method,the heat consumption decreased by 18.07%,the power consumption decreased by 10.86%,and the annual heating operation cost was saved by 2.44 yuan/m^(2).The study of multi-level operation regulation methods and evaluation indicators provides a theoretical basis for determining system regulation strategies.

关 键 词：多级运行调节 综合赋权法 综合评价指标 供需平衡 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程] TB243.1[一般工业技术—工程设计测绘]