Double-glazed doors have a å•¥ performance principle?
[China Glass Net] Double-glazed doors have high safety performance, and no matter how loud the outside is, you can only hear a little. This is the advantage of double-layer doors. But the different double doors are a lot different, but they are still used by consumers. Maybe this is the charm of double-glazed doors!
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Double-glazed doors have a å•¥ performance principle?
1. Application of insulating glass
Insulating glass is mostly used in the door and window industry, because everyone needs to have reasonable structure of the door and window, and design the insulating glass that meets the standard, in order to exert its heat insulation, sound insulation, anti-theft and fire prevention effects. The vacuum standard double-layer tempered glass can reach the laboratory standard! There are also hollow glass with inert gas and color pigment gas added on the market, as well as the addition of beauty strips to strengthen and decorate.
There are three ways to transfer energy: radiation transfer, convection transfer, and conduction transfer.
2. Radiation transfer
Radiation transfer is the transfer of energy through radiation in the form of radiation, including radiation from visible light, infrared light, and ultraviolet light, just like the transmission of sunlight. A properly configured insulating glass and a reasonable thickness of the insulating glass spacer layer can greatly reduce the transmission of energy through the radiation form, thereby reducing the energy loss.
3. Convection delivery
Convective transfer is due to the temperature difference between the two sides of the glass, causing the air to fall on the cold side and rise on the hot side, resulting in convection of the air, resulting in the loss of energy. There are several reasons for this phenomenon: First, the sealing of the glass and the surrounding frame system is poor, and the gas inside and outside the window frame can be directly exchanged to generate convection, resulting in loss of energy; second, the internal space structure design of the insulating glass Unreasonable, the gas inside the insulating glass is convected due to the temperature difference, and the energy is exchanged to generate energy loss. Third, the temperature difference between the inside and the outside of the window constituting the whole system is large, so that the temperature difference between the inside and outside of the insulating glass is also Larger, by the action of cold radiation and heat conduction, the air firstly produces convection on both sides of the insulating glass, and then passes through the hollow glass as a whole to form a loss of energy. A reasonable hollow glass design can reduce the convection of the gas, thereby reducing the convection loss of energy.
4. Conduction transfer
Conduction transfer is the movement of the molecules of the object, which drives the energy to move, and achieves the purpose of transmission, just like cooking with iron pots and soldering things with electric iron. The conduction of energy through the insulating glass is through the glass and its interior. The air is done. We know that the thermal conductivity of glass is 0.77 W/mk. The thermal conductivity of air is 0.028W/mk. It can be seen that the thermal conductivity of glass is 27 times that of air, and the presence of active molecules such as water molecules in the air is the conduction and convection transmission properties that affect the energy of the insulating glass. The main factor, thus improving the sealing performance of the insulating glass, is an important factor to improve the thermal insulation performance of the insulating glass.
Double-glazed doors appeared, and the places we live in are getting more and more private. We can talk freely in the house. No matter how loud the sound outside the door is, we can only hear a little voice and do our own things.
