多源联网式输配供冷系统能耗研究

Research on energy consumption of multi-source networked transmission and distribution cooling system

区域供冷目前主要存在集中式输配和分布式输配2种形式,总体多数以集中能源站、大管道、长距离输配为特征,导致输配能耗高、低负荷工况经济性差等问题。针对以上问题,本文提出了多源联网式输配供冷系统,各用户端分建能源站(多源),通过管网连接各能源站,实现在中低负荷期各用户能源自给自足,峰值负荷期由其他能源站(多源)补充。通过案例计算了集中式输配系统、分布式输配系统、多源联网式输配系统的输配能耗,结果表明,多源联网式输配系统比集中式输配系统节能41%,比分布式输配系统节能23%。

At present,there are mainly two forms of district cooling:centralized transmission and distribution and distributed transmission and distribution.Generally,most of them are characterized by centralized energy stations,large pipelines and long-distance transmission and distribution,leading to high energy consumption and poor economy under low load conditions.In view of the above problems,this paper proposes a multi-source networked transmission and distribution cooling system,in which each user builds energy stations separately(multi-source)and connects each energy station through a pipeline network,so as to achieve energy self-sufficiency for each user during the medium and low load periods,and be supplemented by other energy stations(multi-source)during the peak load period.By calculating the energy consumption of centralized transmission and distribution system,distributed transmission and distribution system,and multi-source networked transmission and distribution system,the results show that the multi-source networked transmission and distribution system saves 41%energy compared to the centralized transmission and distribution system,and 23%energy compared to the distributed transmission and distribution system.