煤气与热力2025，Vol.45Issue(4)：15-22,8.
新增用户场景下热网水泵运行仿真研究
Simulation Research on Operation of Heating Network Water Pumps in New User Scenarios
摘要
Abstract
Taking the actual pipe network as the re-search object,the simulation models for single-heat source branch pipe network and multi-heat source ring pipe network were constructed.The operation charac-teristics of water pumps(including heat source pumps and heating station pumps)of the centralized power sys-tem,the distributed frequency conversion system and the combined heating system(with zero pressure drop located at the middle end of the pipeline network)in new user scenarios were studied respectively.When the centralized power system is adopted:whether it is a single heat source branch pipe network or a multi-heat source ring pipe network,the new users are easy to in-crease the frequency of heat source pumps,but the growth rate remains at a relatively low level.When the distributed frequency conversion system is adopted:the frequency growth rate of water pumps in the heat-ing station of the single heat source branch pipe net-work increases with the backward movement of new user access positions,and the influence of the new us-ers at the back end of the pipe network on the fre-quency growth rate of water pumps in the heating sta-tion(especially the heating station at the back end of the pipe network)is greater than that of the new users at the front end and middle end of the pipe network.For the multi-heat source ring pipe network,the fre-quency of water pumps in the heating station on the side where the new user is located changes more drasti-cally,while the frequency of water pumps in the heat-ing station on the other side changes less.The fre-quency growth rate of water pumps in the heating sta-tion near the new users increases the most.When the combined heating system is adopted:whether it is a single heat source branch pipe network or a multi-heat source ring pipe network,the new users are likely to lead to a significant increase in the frequency growth rate of water pumps in the heating station at the back end of the pipe network.For the multi-source ring pipe network,the new users lead to a significant decrease in the frequency of some peak shaving heat source water pumps.If the combined heating system is adopted,at-tention should be paid to the peak shavingheat source and heating station that are sensitive to changes in hy-draulic working conditions to ensure the safe and stable operation of the pipe network.关键词
动力集中式系统/分布式变频系统/联合式供热系统/新增用户/水泵频率Key words
centralized power system/distributed fre-quency conversion system/combined heating system/new users/pump frequency分类
土木建筑引用本文复制引用
刘鸣寰,李硕勋,杨光,王海..新增用户场景下热网水泵运行仿真研究[J].煤气与热力,2025,45(4):15-22,8.基金项目
国家重点研发计划—国际合作"基于数字孪生的供热系统全网动态优化及低碳智慧调控关键技术研究"(2021YFE0116200) （2021YFE0116200）
