首页|基于红外热成像的供暖系统过热分析方法及实践

基于红外热成像的供暖系统过热分析方法及实践

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北方城镇供暖系统普遍存在不同程度的过量供热问题.常规方法往往基于入户实测室温,而基于红外热成像的供暖系统过热分析方法无需入户监测,并可实现信息的批量获取与处理,进而对供暖系统单体建筑各住户、建筑群之间的冷热不均及开窗损失进行快速诊断评估.将上述方法应用于北京某住宅小区进行案例分析,量化了窗户开度、开窗热损失及温度过高热损失;发现供热系统水力失调、供热源端及末端欠缺合理动态调控手段等原因是出现"冷热不均""过热"现象的主要原因;根据室内温度对供暖系统进行运行调控,可减少2.26%~18.57%的运行能耗.
Methods and practices of overheating analysis of heating system based on infrared thermal imaging
The heating system of northern cities and towns generally has the problem of excessive heat supply to varying degrees.The conventional method is often based on the actual measurement of room temperature at home,while the overheating analysis method of heating system based on infrared thermal imaging avoids household monitoring,and can realize batch acquisition and processing of information,so as to quickly diagnose and evaluate the uneven cooling and heating and window opening loss between households and building groups in a single building of the heating system.The above method was applied to a residential community in Beijing for case analysis,and the heat loss of window opening,window opening and heat loss of excessive temperature were quantified,and it was found that hydraulic imbalance and lack of reasonable dynamic control means of the system,were the main reasons for the phenomenon of"uneven cold and heat"and"overheating",and the control of the heating system according to the indoor temperature could reduce the operating energy consumption by 2.26%~18.57%.

infrared thermographyroom temperature calculation modelwindow opening degreeoverheating coefficientheat loss from window opening

蒋佩珈、郝富霖、徐宝萍

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华北电力大学能源动力与机械工程学院,北京 102206

清华大学建筑学院,北京 100084

红外热成像 室温计算模型 窗户开度 过热系数 开窗热损失

2024

区域供热
中国城镇供热协会

区域供热

影响因子:0.433
ISSN:1005-2453
年,卷(期):2024.(6)