内射少妇一区27p,经典国产乱子伦精品视频,国产精品无码2021在线观看,精品无码综合一区二区三区,午夜理理伦电影a片无码,国产六月婷婷爱在线观看,国产92成人精品视频免费,国产亚洲av夜间福利香蕉149,久久久亚洲精华液精华液精华液,日本熟妇大屁股人妻

　　Here is an introduction to the cooling system of the wet curtain fan:

　　The wet curtain fan cooling system uses the principle of water evaporation and cooling to achieve the purpose of cooling. The special hydrophobic wet curtain of the wet curtain fan can ensure that the water evenly wets the entire cooling wet curtain wall. When the air penetrates the wet curtain medium, it exchanges heat with the water on the surface of the wet curtain medium to realize the humidification and cooling of the air. The curtain fan is usually installed at the northern end of the greenhouse, and the fan is installed at the southern end of the greenhouse. When the temperature needs to be lowered, the fan is started to forcibly extract the air in the greenhouse, forming a negative pressure, and at the same time, the water pump hits the water on the wet curtain wall. When outdoor air is sucked into the room due to negative pressure, it passes through the gap of the wet curtain at a certain speed, causing moisture to evaporate and cooling. The cold air flows through the greenhouse, absorbs indoor heat, and is discharged by the fan to achieve the purpose of cooling.

　　The above introduction is the cooling system of the wet curtain fan. I hope you can understand it. For more information, please log in: m.woqutao.com.cn