建筑外窗气密性检测的体会

Experience of testing for air permeability performance of windows

本文分析了在建筑外窗气密性检测中,由于检测设备的安装存在原理上的错误,当室内外存在温差时,空气在渗透过程中,空气温度发生变化而引起体积的变化,造成空气计量值和实际渗透量之间的误差,最终造成检测结果的误差;检测过程中空气温度的变化也使检测时空气温度参数不易设置准确。最后提出了解决的方法,以使检测更加科学、准确、公正。

In the paper, it has been analyzed in checking and measuring construction exterior window air permeability that when there is difference between indoor and outdoor temperature, infiltration air is occurred change of volume owing to change of temperature, because of the mistake on the installation principle of detection equipment. It causes the error between air measure value and actual infiltration quantity; finally it causes the error of detection result. In checking and measuring process, air temperature parameter is not easily set up to the certain value by the changing temperature. At lasdy, the method of solution is put forward in order to get the more scientific and accurate result.