Cold fan principle
The refrigeration principle of evaporative air conditioner with air cooler is as follows: when the fan is running, it enters the cavity to generate negative pressure, so that the air hole of the air cooler wets the wet curtain surface outside the machine, forcing the dry bulb temperature of the air passing through the curtain to approach the wet bulb temperature of the air outside the machine, that is, the dry bulb temperature at the outlet of the cold fan is 5 to 12 degrees Celsius lower than the outdoor dry bulb temperature, and the outdoor dry bulb temperature can reach 15 degrees Celsius in dry and hot areas. The hotter the air, the greater the temperature difference and the better the cooling effect.
Because air is always introduced into the room from the outside, this time it is called positive pressure system, so it can keep the indoor air fresh. At the same time, due to the evaporative cooling principle, the machine has dual functions of cooling and humidification, and the relative temperature can reach about 75%. When used in textile and knitting workshops, it can not only improve the cooling and heating conditions, but also purify the air, reduce the needle breakage rate in the process of needle-punched spinning and improve the quality of needle-punched textile products.
The evaporative air conditioner with air cooler is equipped with a honeycomb wet curtain made of special material around it, which has a large surface area. The wet curtain is continuously humidified through the water circulation system. An efficient, low-noise and energy-saving fan is installed in the wet curtain cooling fan. When the fan is running, the wet curtain cooling fan generates negative pressure, so that the air outside the machine flows through the porous wet curtain and enters the machine. Because the water on the wet curtain evaporates and absorbs heat, the air passing through the wet curtain is forced to cool down.