Study Of Polyurethane Frame Style Exterior Insulation System

In today's world, within the scope of the energy shortage, building energy consumption in social commodity production consumption accounts for an important position. Building energy saving has obvious effect to save energy. Because external energy consumption of building energy consumption accounts for about 40 percent, the technology of exterior insulation system has developed, the theoretical problems increasing in recent years.Relying on major public research projects in Henan Province (081100910400), major scientific and technological projects of Zhengzhou City (082SGZS32079) and the Graduate Research Fund of Zhengzhou University (focus class A181),this paper proposes a new kind of external thermal insulation system-the Polyurethane frame style exterior insulation system. The simulation method through finite element theory of composite system analyses the performance of thermal and the properties of structure of the small frame compound plate, and finally puts forward measures for detail. Research done mainly includes the following aspects:1) This paper puts forward a new exterior insulation system-the little box body system, and puts forward the principle of thermal insulation composite system of small frame, and guides practical construction.(2)From the thermal performance analysis of heat transfer process of small frame composite system and EPS plastered system through model, loads, small frame composite system and EPS plastered system heat flux. This index with heat flux shows the ability of the small frame composite system to prevent of heat transfer stronger.3) A structural analysis of small frame composite plates by finite element modeling, the paper gets the small frame composite plate x, y, z direction of the deformation and the small frame composite plate stress components, Analysis of the deformation and deformation trend, indicating the small frame composite plate is reasonable. Relative strength of material of stress of small area is proposed to spread its stress, great value.4) From detail structure to improve the small frame composite thermal and structure of the details of the system performance. The proposed of U-type expansion joints not only changes the exterior insulation system of thermal performance, but also improves the expansion joint structure performance. Structure and thermal of door hole also meet the requirements.