[China Glass Network] "Energy Saving and Emission Reduction" has involved every aspect of construction and housing. Energy-saving doors and windows are also a key in energy-efficient residential building and design. The sealing, heat preservation and safety of doors and windows are all concerned and valued by consumers. But how can we design energy-efficient windows and doors? The following is an analysis of the technical characteristics and key points of China's energy-saving doors and windows industry organized by Yubo Zhiye.
For the time being, the technologies used in energy-saving doors and windows mainly have the following six points:
1. High-performance insulating glass and economical double-glass series products must have a major breakthrough in process technology and product performance. Focus on the heat-reflecting and low-radiation insulating glass, high-performance safety insulating glass and economical double glass dew condensation temperature and impact resistance and installation technology, to achieve a scientific combination of heat insulation and efficient use of solar energy.
2, door and window window type and curtain wall insulation technology. It is necessary to use the building energy-saving technology as the driving force to carry out technological transformation and innovation on the window structure, opening form and window structure of residential buildings in China. Change the single sliding window type and develop the flat opening, especially the composite inner window and multi-function window. Improve the ventilation function and safety performance of the high-sealing window, and develop the heat-dissipating and energy-saving luxury aluminum alloy window and the luxury multi-function door products.
3. Solar energy development and utilization technology. Building doors and windows and building curtain walls need to change the technical concept of passive insulation and single energy saving. It is necessary to combine energy conservation and rational use of solar energy, underground heat (water) energy, and wind energy to develop door and window and curtain wall products that combine energy conservation and energy use (using solar energy, cold energy, wind energy, and geothermal energy).
4. High-performance sealing technology for building doors and windows and building curtain walls. Reduce air permeable heat loss and improve main physical properties such as air tightness, water tightness, sound insulation, heat preservation and heat insulation.
5, aluminum alloy special profiles and galvanized color plate special profile heat insulation technology. Focus on solving the problem of localization of heat-dissipating materials and safety of fire-resistant and anti-hazard gases, reducing material costs and expanding the promotion.
6, improve the door and window and curtain wall installation technology. Improve the integrated energy-saving technology level of the door and window and curtain wall structure and the envelope structure, and improve the overall energy-saving effect of the wall. Focus on solving door and window, curtain wall anchoring and filling technology and using solar energy, aerodynamic energy-saving technology.
Energy-saving doors and windows should be considered from the following aspects:
1, door and window material
Now the doors and windows are made of aluminum alloy, plastic steel, plastic, solid wood and broken bridge aluminum. There is a common sense that everyone knows that iron and aluminum have very high thermal conductivity, and a little heat will be emitted, so the winter house is always cold. Plastic steel windows and plastic windows have been popular in the past few years, but the strength of the window is not strong enough, it is easy to become brittle, and the safety can be imagined. The wooden window has excellent energy-saving and environmental protection performance, but the wooden window has its own defects, it is not easy to burn, it is easy to rot, it is easy to crack, etc., and the price of wooden windows is not cheap. At present, the aluminum alloy doors and windows of the broken bridge have better energy-saving and environmental protection performance. It not only solves the shortcomings of high thermal conductivity of aluminum alloy, but also compensates for the disadvantages of low strength of plastic steel and plastic, and the price is relatively low compared with solid wood.
2, glass
Glass occupies most of the area of ​​doors and windows, so it plays a very important role in energy-saving indicators. There are several types of glass on the market: one is ordinary glass and has not been tempered; the other is ordinary tempered glass; the third is coated glass; the fourth is Low-E glass. Each glass can also be subdivided. So which kind of glass has better energy saving effect? It should be low-e glass, which can filter out harmful light such as infrared rays, far infrared rays and ultraviolet rays, and the energy saving effect is remarkable. In recent years, the state has demanded that high-rise buildings use insulating glass, which is two-layer glass. But look at the hollow glass on the market side is plausible, it may be just a simple two layers together, the real insulation effect is not achieved.
3, door and window energy saving is the overall energy saving
When it comes to the energy saving of doors and windows, it is actually the energy saving of the whole window. It is impossible to achieve energy saving by relying solely on glass. The sealing performance of doors and windows is also an important parameter affecting energy saving. If there is a problem with the sealing of the doors and windows, the energy will also be easily lost. The sealing of doors and windows includes the following aspects. First, the choice of sealing material. The good sealing strip is flexible and elastic, and has strong weather resistance. Even at minus 20°, it can maintain its toughness. In addition to the sealing strips, the doors and windows need to be treated with special processes, and the external noise is gone. Meidejia energy-saving doors and windows have the characteristics of heat preservation, heat insulation, waterproof, noise prevention, dustproof, safety and beauty, which is your home preference!
All in all, the energy saving of doors and windows depends not only on the material, but also on the glass, and on the process of the doors and windows.
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