金属连接件对保温与结构一体化墙体热工性能影响实验研究及模拟验证  

Experimental Study and Simulation Verification of Influence of Metal Connector on Thermal Performance of Thermal Insulation and Structural Integration System

作　　者：李永 郝文辉 赵彦彦 郭朝辉 任治立 LI Yong;HAO Wenhui;ZHAO Yanyan;GUO Zhaohui;REN Zhili(Hebei Province Center for Building Quality Inspection Co.,Ltd.,Shijiazhuang 050227,China;Hebei University of Science and Technology College of Civil Engineering,Shijiazhuang 050018,China;Hebei Building Research Engineering Technology Co.,Ltd.,Shijiazhuang 050227,China;Chongqing University School of Civil Engineering,Chongqing 400045,China)

机构地区：[1]河北省建筑工程质量检测中心有限公司,河北石家庄050227 [2]河北科技大学建筑工程学院,河北石家庄050018 [3]河北建研工程技术有限公司,河北石家庄050227 [4]重庆大学土木工程学院,重庆400045

出　　处：《粉煤灰综合利用》2024年第1期163-167,共5页Fly Ash Comprehensive Utilization

摘　　要：为了验证采用模拟计算的方法研究金属连接件对保温与结构一体化墙体热工性能影响的准确性与可靠性,首先依据(GB/T 13475—2008)《绝热稳态传热性质的测定标定和防护热箱法》规定的防护热箱法,制作实验墙体,并在实验台上分别对锚入金属连接件数量为3、6和9个的保温与结构一体化墙体进行了实验研究,获取了墙体的实测传热系数。随后利用Airpak计算流体力学软件建立与实验研究相同的三组模型,并设置了相同的热室与冷室温度工况,分别计算其传热系数。最后对实测结果与模拟结果进行了对比。结果表明:锚入金属连接件数量为3、6和9个时的保温与结构一体化墙体平均相对误差分别为4.92%、4.69%和3.96%,模拟计算误差均在5%范围内,满足工程计算要求。In order to verify the accuracy and reliability of using the method of simulation calculation to study the influence of metal connectors on the thermal performance of thermal insulation and structural integration wall,the experimental wall is first made according to the protective hot box method stipulated in"Determination and Calibration of Thermal Insulation Steady State Heat Transfer Properties and Protective hot box Method"(GB/T 13475—2021).experimental study is carried out on three,six and nine insulation and structural integration walls with anchored metal connectors on the experimental platform,and the measured heat transfer coefficients of the walls are obtained.Then Airpak computational fluid dynamics software is used to establish the same three groups of models as the experimental study,and set the same hot chamber and cold chamber temperature conditions,respectively,to calculate their heat transfer coefficients.Finally,the measured results are compared with the simulated ones.The results show that the average relative errors of insulation and structural integration wall are 4.92%,4.69% and 3.96% respectively when the number of anchored metal connectors is 3,6 and 9,and the simulation errors are all within 5%,which meet the requirements of engineering calculation.

关 键 词：防护热箱法 金属连接件 传热系数 相对误差 

分 类 号：TU551[建筑科学—建筑技术科学]