钢化真空玻璃支撑物不同布放间距的传热分析

Heat Transfer of Tempered Vacuum Glass Supports with Different Arrangement Spacing

为降低钢化真空玻璃的传热能力,提高其保温隔热性能,对影响钢化真空玻璃传热的支撑物布放间距进行优化。针对支撑物布放间距对钢化真空玻璃传热的重要影响,研究钢化真空玻璃的传热机理,理论分析支撑物热导率的计算公式,在钢化真空玻璃满足力学性能的前提下,选取4组支撑物的布放间距,建立玻璃的传热模型,数值模拟分析不同布放间距下玻璃模型中心单元的总热通量。结果表明:在其他参数一定的情况下,支撑物的布放间距越大,钢化真空玻璃中心单元的总热通量越小,玻璃的保温隔热性能越好。该分析方法在实际生产过程中,为钢化真空玻璃支撑物的布放间距的优选提供了依据,对建筑节能具有重要的现实意义。

In order to reduce the heat transfer capacity of the tempered vacuum glass and improve its thermal insulation performance, the spacing of the supports that affect the heat transfer of the tempered vacuum glass is optimized. In view of the important influence of the spacing of supports on the heat transfer of tempered vacuum glass, the heat transfer mechanism of tempered vacuum glass is studied, and the calculation formula for the thermal conductivity of the support is theoretically analyzed. On the premise that the tempered vacuum glass meets the mechanical properties, four groups are selected. The distance between the supports and the heat transfer model of the glass is established, and the total heat flux of the central unit of the glass model under different placement distances is analyzed by numerical simulation. The results show that, when other parameters are constant, the larger the spacing of the supports, the smaller the total heat flux of the central unit of the tempered vacuum glass, and the better the thermal insulation performance of the glass. In the actual production process, this analysis method provides a basis for the optimization of the placement spacing of the tempered vacuum glass supports, and has important practical significance for building energy conservation.