Energy-saving glass window

Abstract

The invention discloses an energy-saving glass window, comprising two sheets of plain glass and a sealed spacer, a sealed cavity is formed between the sealed spacer and the plain glass and is filled with silicon dioxide aerogel. Compared with the ordinary insulating glass in the prior art, especially compared with facade wall glass with relatively thick cavity, the energy-saving glass filled with the silicon dioxide aerogel effectively reduces convective heat transfer of air, the superhigh porosity of the silicon dioxide aerogel ensures even lower thermal conduction (normally not more than 0.01W / (m K) ) than the thermal conduction of air, therefore the energy-saving glass window has better heat-insulating property.

Description

technical field [0001] The invention relates to the technical field of glass window manufacture, and more specifically relates to an energy-saving glass window filled with silica airgel. Background technique [0002] In the northern part of our country, there are many rainy and snowy weathers in winter, and the temperature is low. Most of the indoor heat is lost through glass windows, lighting roofs and other glass fences. At present, the energy consumption per unit of building in my country is 2 to 3 times that of developed countries, and the energy consumption of windows in my country accounts for about half of the energy consumption of the entire building envelope. In order to reduce the unit building energy consumption. The country has legislated to promote the use of new technologies, new processes, new materials and new equipment for civil building energy conservation. In the prior art, the structures of energy-saving windows mainly include the following types: [0...

AI Technical Summary

Problems solved by technology

[0008] However, the heat insulation performance of the above-mentioned glass windows is not satisfactory. The reason for the limited heat insulation performance of the above-mentioned glass windows is that the spacers between the layers of glass at the edge of the glass window have thermal conduction phenomenon, and in the edge sealing layer and through There is thermal conductivity at the location of the sealing layer

In addition, materials such as foamed polycarbonate, polyurethane, and polyvinyl chloride have a high density, and the weight of the glass window made is also relatively large. At the same time, the light transmission performance of this material is not ideal.

For the glass body coated with nano-transparent heat-insulating coating, it is necessary to prepare nano-transparent heat-insulating functional coating first, and then apply the coating on the glass surface by spraying and brushing, and then dry and solidify to obtain the heat-insulating function. glass, but the cost of this approach is higher

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