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.

　　但气体间隔层的厚度达到一定程度后，增加气体间隔层的厚度，热阻不再增加或有减小的趋势。这是因为当气体间隔层厚度增大到一定程度后，气体在玻璃之间温差的作用下就会产生一定的对流(词条“对流”由行业大百科提供)过程，从而减低了气体层增厚的作用。

　　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.

　　中空玻璃具有突出的保温隔热性能，是提高门窗节能水平的重要材料，近些年已经在建筑上得到了极其广泛的使用。但随着节能标准的不断提高，普通的中空玻璃已不能完全满足节能设计的技术要求。

　　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.

　　中空玻璃都是垂直安装使用的。但中空玻璃的应用范围越来越广泛，如果中空玻璃应用于温室或采光屋顶，其安装角度将会发生改变。当中空玻璃由垂直变为倾斜安装时，增大的受光面积使之成为阳光集热器，其隔热性能也会因间隔腔内气体对流的增加而下降30%以上。

　　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.

　　主要原因是当倾斜安装使用的时侯，中空玻璃内部间隔层气体的对流状态会变得剧烈，这必将降低气体对热量的热阻能力，终导致中空玻璃的隔热能力变差。

　　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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