基于泵阀联合调节的供暖系统节能优化运行  

Optimized energy-saving operation of heating systems based on combined regulation of pumps and valves

作　　者：李晨 仇宝云 严天序 王慧洁 赵方玲 戚桂鹏 LI Chen;QIU Baoyun;YAN Tianxu;WANG Huijie;ZHAO Fangling;QI Guipeng(College of Water Hydraulic Science and Engineering,Yangzhou University,Yangzhou,Jiangsu 225009,China;College of Electrical,Energy and Power Engineering,Yangzhou University,Yangzhou,Jiangsu 225127,China;National Research Center of Pumps,Jiangsu University,Zhenjiang,Jiangsu 212013,China)

机构地区：[1]扬州大学水利科学与工程学院,江苏扬州225009 [2]扬州大学电气与能源动力工程学院,江苏扬州225127 [3]江苏大学国家水泵及系统工程技术研究中心,江苏镇江212013

出　　处：《排灌机械工程学报》2025年第1期60-65,73,共7页Journal of Drainage and Irrigation Machinery Engineering

基　　金：国家自然科学基金资助项目(52179091);江苏省产学研前瞻性项目(BY2012165);苏州市水利水务科技项目(2020002)。

摘　　要：针对居民楼供暖系统,目前的研究未实现时空精细划分控制,供暖质量差、能耗大.为满足人们供暖热舒适性需求和节能减排的目标,通过理论分析和优化调节,对居民楼供暖进行分时分区控制,实现精细化供暖.首先,根据不同时段楼栋各功能区域供暖要求,计算确定居民楼分区分时最佳供暖量;其次,根据供暖系统传热特性、管路及阀门阻力特性和离心泵性能,在满足精准供暖要求的前提下,建立系统热平衡方程和变阀、变频、变频与变阀结合的系统水力平衡方程组,求解系统各出户阀门阻力和最优水泵变频转速.对郑州市某居民楼进行了供暖优化运行计算,分析比较了原设计供暖模式、变阀、变频、变频与变阀结合调节4种供暖模式的能耗,结果表明,相对于原设计运行方案,变阀优化运行、变频优化运行和变频与变阀结合优化运行的能耗分别节省12%,18%和37%;供暖量分别节省4%,20%和20%;总运行费用分别节省12%,18%和35%.Current research on the heating systems of residential buildings has yet to achieve precise spatiotemporal control,leading to suboptimal heating quality and elevated energy consumption.To address the dual objectives of satisfying occupants′thermal comfort requirements and achieving energy conservation and emission reduction targets,residential building heating systems were managed through time-and zone-specific control,facilitated by theoretical analysis and optimized regulation,thereby achieving precise heating management.Firstly,according to the heating requirements of each area at different times,it was essential to calculate and determine the heating capacity for each functional area of the residential buildings across various time periods.Secondly,in the heating system,according to the heat conduction characteristics,the resistance characteristics of pipelines and valves,and centrifugal pump performance,a comprehensive approach was adopted to ensure that precise heating requirements were met.This involved formulating a system thermal balance equation and a system hydraulic balance equation.These equations integrated the use of variable valves,frequency converters,and adjustable valves to determine the resistance at each outlet valve and to optimize the variable frequency speed of the water pump within the system.The optimization operation calculation of heating for a residential building in Zhengzhou City was carried out.The energy consumption of the original design hea-ting mode,variable valve,variable frequency,variable valve and variable frequency regulation was analyzed and compared.The study involved a comparative evaluation of these modes.The results indicate that compared to the original design operation scheme,through optimized operation of variable valve,variable frequency,and the combination of variable frequency and variable valve,the operating energy consumption is saved by 12%,18%and 37%,respectively.The heating capacity is saved by 4%,20%and 20%,respectively.Total operating cost is saved by 1

关 键 词：居民楼供暖系统 分时分区 供暖量 变频与变阀 节能 热流量 

分 类 号：TU833.1[建筑科学—供热、供燃气、通风及空调工程] S277.9[农业科学—农业水土工程]