基于室温监测反馈的集中供热按需调控技术研究  

On-demand regulation technology for centralized heating systems based on room temperature monitoring and feedback

作　　者：王延敏 李志伟[1,3] 刘俊杰[1] 孟晗[1] 朱咏梅 郎晋东 王伟 Wang Yanmin;Li Zhiwei;Liu Junjie;Meng Han;Zhu Yongmei;Lang Jindong;Wang Wei(Tianjin Key Laboratory of Indoor Air Environmental Quality Control,Tianjin University,Tianjin;Dalian Haixin Information Engineering Co.,Ltd.,Dalian;Lanzhou Jiaotong University,Lanzhou;Tianjin Thermal Power Company Limited,Tianjin)

机构地区：[1]天津大学室内空气环境质量控制天津市重点实验室,天津 [2]大连海心信息工程有限公司,大连 [3]兰州交通大学,兰州 [4]天津市热电有限公司,天津

出　　处：《暖通空调》2024年第10期44-51,共8页Heating Ventilating & Air Conditioning

摘　　要：集中供热收费的计量单位为供热面积,在这种计量模式下,供热合格与否的判断指标不是用热量,而是热用户的热舒适性。本文提出了一种以监测反馈室温作为按需供热抓手的分时分区按需供热精准调控技术,在研究分析供热管网宽幅调节、精准输配机制基础上,分析了室温变化规律和热网延时特性,确定了调控目标和技术可行性。为进一步体现室温的综合特性,确定了室温采集传感器数量计算式和空间部署原则,开发了换热站有效室温计算方法,提出了一种结合预测室外气象参数、基于有效室温的反馈值和设定值偏差的预测反馈控制方法和自控逻辑。工程实践表明,该技术不仅能提升用热质量,还能较大幅度地降低热耗。The metering unit for centralized heating charging is the heating area.In this metering mode,the judgment index for determining whether the heating is qualified or not is not the heat consumption,but the comfort of the heating users.In this paper,a precise control technology for on-demand heating in different time periods and regions is proposed,which uses monitoring and feedback of room temperature as the basis for on-demand heating.Based on the research and analysis of the wide adjustment,and precise transmission and distribution mechanism of the heating network,the room temperature variation laws and heating network delay characteristics are analysed,and the control objectives and technical feasibility are determined.To further reflect the comprehensive characteristics of room temperature,a formula for calculating the number of room temperature sensors and the spatial distribution principles are determined,a method for calculating the effective room temperature of heat substations is developed,and a predictive feedback control method and its automatic control logic are proposed based on the deviation between the feedback and set values of effective room temperature,combined with the prediction of outdoor meteorological parameters.Engineering practices show that this technology can not only improve heat quality,but also significantly reduce heat consumption.

关 键 词：集中供热 按需供热 室温监测 按需调控 延时特性 预测反馈 

分 类 号：TU995[建筑科学—供热、供燃气、通风及空调工程]