Low carbon Environmental protection Has become the trend, China's many places in the implementation of the "low-carbon lifestyle", windows and doors industry is how low-carbon energy saving environmental protection for?
Building energy efficiency is a huge systematic project, all aspects of the whole society together. The building itself, the reality of energy-saving shortcut from the "windows" to start. Impact of building energy consumption as one of the four parts of the doors and windows envelope, generally thin-walled lightweight components, is building insulation, heat insulation, sound insulation of the weak links. Especially in insulation properties of the worst, it passes through the radiation, convective transfer, conduction transfer and air infiltration led to the building of four forms of energy loss, the energy of ordinary single-glazed windows heat loss in winter and summer about building cooling energy consumption of 50 % or more. Therefore, to improve the indoor thermal windows and doors, light environment, most important, its performance directly determines the effect of building energy efficiency. Enhanced thermal insulation properties of windows, doors and windows to reduce energy consumption, improve building heat, light, environmental quality, an important step in building energy efficiency goals.
Insulation and insulated doors and windows and glass, door window frame materials, construction and air tightness are closely related. Whatever the form of building doors and windows, glass materials to be used, it accounts for more than 70% area of the window glass, energy-efficient doors and windows so they should first consider the factors of glass. This is why Beijing, Tianjin, Shanghai and other big cities have enacted local laws and regulations, Vigorously Promotion and mandatory energy-saving buildings, but also, without exception, the implementation of hollow, inflatable, low-emissivity glass reasons. Promote the use of hollow glass
is a sign of the times, building energy efficiency developments . Insulating glass is two or more layers of glass to seal up the air, during layer filling with viscosity coefficient and thermal conductivity coefficient of the inert gas to reduce the convection heat transfer between the layers, the energy-saving features of the key indicators??? Biography thermal coefficient K (refer to steady heat transfer conditions, the glass on both sides of the air temperature difference of 1 ° C when the 1 square meter per unit time through the mass heat insulating glass to W/m2K said. K value is lower, indicating hollow better thermal insulation properties of glass) was 2.7 ~ 3.3, 5.8 and ordinary monolithic glass. Of course, such as hollow glass with LOW-E, or SUN-E glass to match, due to its excellent thermal characteristics of the optical, thermal insulation performance is more prominent. Insulating glass in developed countries has been widely and applications. Application of the U.S. penetration rate has reached 83%. German government has not hollow glass construction of the proposed building shall not be approved, only 80 of the last century before the Federal Republic of Germany to use hollow glass reached 210 million square meters, saving Energy Cost 52 billion marks. Application of European penetration reached 50%.
Industry experts believe that the nature and function of the window will be confined mainly to the heat preservation, heat insulation, energy-efficient development. This requires that the window should have considerable product strength, deformation warpage. The gap in the sash handle, the northern parts of the North to the window should double Bolivian facilities. China is a country lacking in energy, energy equivalent to twice that of developed countries.
Windows open in the direction of the main push-pull doors and windows of development, the development of new suspension and the suspension of the window, where energy saving and air-conditioning requirements for the room. Window-based development is becoming smaller, flexible technology to meet the requirements of modern small bedroom. Push-pull window, open the convenient, flexible, space is conducive to window details of the deal, such as planters, etc. located.
To develop security doors, require security, fire, sound insulation, thermal insulation effect. Size fan proposed development outside the open type with security, insulation, sound insulation triple door. This is beneficial to dry indoor space saving, opening the door fighting, strip changing his shoes and space. Size of the door set, for the daily travel and provide convenience for handling large objects. Key technology is the hinge security measures, a small fan fixed and door seal technology.
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