Main functions and influencing factors of insulating glass
Hollow glass has many functions superior to ordinary double-layer glass, so it has been recognized by all countries in the world. Hollow glass is a kind of glass product that can effectively support two or more pieces of glass to separate evenly and seal the surrounding area, so that the glass layers can form a dull gas space.
1. Gas spacer thickness: mainly through the control of thickness, so that the interior of the hollow glass constitutes turbulent flow of heat transfer, as far as possible to control the cold and hot gases of the gas to disturb each other or to make the rising and falling air flow to disturb each other to control the generation of convective heat transfer.
2. Gas species and humidity between air layers: inert gas filled in the interior of hollow glass can reduce the heat and sound insulation function of hollow glass. If argon and sulfur fluoride are added, the insulation and sound insulation function of insulating glass can be improved. It
3. Sealing condition at the edge of hollow glass: on the one hand, if the edge of hollow glass is not well sealed, the share of water vapor passing through the sealant layer into the interior of hollow glass should be increased, and the lifetime of hollow glass will be reduced; on the other hand, if the thermal conductivity of the edge data of hollow glass is good, it will pass through the insulation of hollow glass. The thermal coefficient will improve and the insulation function will decrease.
4. Thermal transmittance of glass: The heat transfer of hollow glass is mainly carried out by radiation heat transfer. If the general open glass with high transmittance and low reflectivity is adopted, the insulating function of hollow glass is much lower than that of coated glass with high reflection and low transmittance or LOW-E glass.
5. Glass plane scale: Increasing the plane scale of hollow glass can reduce the heat loss per unit area of hollow glass and improve the overall insulation of hollow glass. Together, in the process of installing hollow glass doors and windows, if the glass buckle device is not good or tightly sealed, it will make the whole window or the inside and outside of the glass permeable, generate convection, cause energy loss and affect its function.
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