摘要
受施工场地与施工条件等不确定因素影响,建筑围护结构热工缺陷现象较常见。为解决传统热工缺陷检测技术检测精度较低、检测周期较长、无法深入判断建筑围护结构热工性能的问题,文章提出基于红外热成像技术的建筑围护结构热工缺陷检测方法。根据建筑围护结构特征,建立热工缺陷数学模型,反映围护结构耗热量的变化;采用红外热成像技术,对热工缺陷进行全方位诊断。由试验分析可知,新的检测方法热工缺陷对比度之间的差异性较小,稳定性较高,且检测结果准确率均在95.02%以上,与传统检测方法相比,可行性更高。
Affected by uncertain factors such as construction site and construction conditions,thermodynamic disfigurement of building envelope are common.In order to solve the problems of low detection accuracy,long detection period and inability to deeply judge the thermal performance of building envelope structure by traditional thermodynamic disfigurement detection technology,this paper proposes a thermodynamic disfigurement detection method of building envelope structure based on infrared thermography.According to the characteristics of building envelope,a mathematical model of thermodynamic disfigurement is established to reflect the change of heat consumption of building envelope.Infrared thermography is used to diagnose thermodynamic disfigurement in an all-round way.According to the test analysis,the difference between the thermodynamic disfigurement contrast of the new detection method is small,the stability is high,and the accuracy of the detection results is above 95.02%, which is more feasiblethan the traditional detection method.
作者
潘晓花
PAN Xiaohua(SDIC Engineering Inspection and Testing Co.,Ltd.,Kunming 650000,Yunnan,China)
出处
《工程技术研究》
2023年第4期60-62,共3页
Engineering and Technological Research
关键词
红外热成像技术
建筑围护结构
热工缺陷
数学模型
infrared thermography
building envelope structure
thermodynamic disfigurement
mathematical model
