我在旧房安装水管时偶然发现,架空层内吹出来的是一股冷气。由此想到,能不能利用这股冷气来降低室内温度。经过几年的试验证明,效果较好。不要什么成本,农户可自行安装。现将具体做法介绍如下。旧房架空层自然地面已无法处理,故在房间两边角凿2 10厘米洞。各用一根铸铁管通入,与架空层圆孔板底面平,上面高出地面5厘米,并用水泥砂浆捣实。把原来朝南架空层通风洞封严,只留朝北通风洞兼作进气孔。这样一做,架空 When I installed the water pipe in the old house, I stumbled upon it. The air blown out of the overhead layer was a cold air. It is thought that this cold air can be used to reduce the indoor temperature. After several years of tests, the effect is better. No cost, farmers can install their own. The specific practices are described below. The natural floor of the old house’s overhead floor has been unable to handle. Therefore, 2 10 cm holes are drilled on both sides of the room. Each was casted with a cast iron pipe, which was level with the bottom surface of the hole plate of the aerial layer. The upper surface was 5 cm above the ground, and it was compacted with cement mortar. The ventilation holes in the original south-facing air layer were sealed, leaving only the north-facing ventilation holes to double as air intake holes. In so doing, overhead