Cooling principle of wet curtain fan system in greenhouse

The cooling system of the wet curtain fan is based on the principle of water evaporation and heat absorption. 

The wet curtain is installed on one side of the greenhouse, and the fan is installed on the opposite side of the wet curtain of the greenhouse. 

When it is necessary to cool down, the fan will start and force out the high temperature air in the greenhouse, resulting in negative pressure in the greenhouse. At the same time, the water is hit on the surface of the wet curtain by the pump, which leads to the evaporation of water on the surface of the wet curtain and absorbs the heat of the air through the wet curtain, and then enters the greenhouse after cooling. 

The cold air flows through the greenhouse, and then absorbs the indoor heat and is discharged by the fan, so as to achieve the purpose of cooling the greenhouse.