国内市场所用的中空玻璃气体间隔层厚度为6 mm、9 mm、12 mm等，主要是由所采用的铝间隔条(词条“隔条”由行业大百科提供)所决定的。气体间隔层的厚薄与间隔层的热阻有直接关系。在所用玻璃、密封胶、气体种类相同的情况下，气体间隔层越厚，间隔层热阻越大。
The thickness of the insulating glass interlayer used in the domestic market is 6 mm, 9 mm and 12 mm, which is mainly determined by the aluminum spacer used in the industry, which is provided by the industry encyclopedia. The thickness of the gas interlayer is directly related to the thermal resistance of the interlayer. When the glass, sealant and gas are the same, the thicker the gas interlayer, the greater the thermal resistance of the interlayer.
However, when the thickness of gas interlayer reaches a certain level, the thickness of gas interlayer will increase, and the thermal resistance will no longer increase or decrease. This is because when the thickness of the gas layer is increased to a certain extent, the gas will produce certain convection under the effect of temperature difference between the glass (the phrase "convection" is provided by the industry Encyclopedia), thus reducing the effect of the gas layer thickening.
Hollow glass is an important material for improving the energy saving of doors and windows. It has been widely used in buildings in recent years. However, with the continuous improvement of energy saving standards, ordinary insulating glass can not fully meet the technical requirements of energy saving design.
The hollow glass is all vertically installed. But the application scope of insulating glass is more and more extensive. If insulating glass is applied to greenhouse or lighting roof, its installation angle will change. When the hollow glass is changed from vertical to slanting installation, the increased area of light receiving becomes a solar collector, and its insulation performance will decrease by more than 30% by the increase of convection in the interval cavity.
The main reason is that when the inclined installation is used, the convection state of the air inside the insulating glass will become violent, which will reduce the thermal resistance of the gas to the heat, and eventually lead to the poor insulation ability of the insulating glass.
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