The principle of industrial cooling fan The cooling principle of industrial cooling fan (evaporative air-conditioner) is: when the fan is running, it enters the cavity to generate negative pressure, so that the outside air flows through the porous wet curtain surface to force the dry bulb temperature of the curtain air to decrease. The wet bulb temperature of the outside air of the machine should be installed outdoors, requiring fresh air movement, and no return air method is required. If the conditions permit, the host should be installed in a place with good ambient air quality. Do not install in the vents with odor or odor gas, such as polishing, toilets, kitchens, etc. That is, the dry bulb temperature at the exit of the cooling fan is 5-12 °C lower than the outdoor dry bulb temperature, and the hotter the air is, the larger the temperature difference is, the better the cooling effect is. Since the air is always introduced into the room from outside (this is called a positive pressure system), it can keep the indoor air fresh. At the same time, because the machine uses the principle of evaporative cooling, it has the dual functions of cooling and humidifying, in the textile, knitting and other workshops. The use can not only improve the temperature and temperature increase conditions, but also purify the air, reduce the needle breakage rate during the needle spinning process, and improve the quality of the needle textile product.
The air cooler (evaporative air conditioner) is surrounded by a honeycomb wet curtain using special materials, which has a large surface area, and the wet curtain is continuously humidified by the water circulation system; the high-efficiency low-noise energy-saving fan is installed in the wet curtain air cooler. When the fan is running, the negative pressure of the wet curtain air cooler causes the air outside the machine to flow through the porous wet curtain into the machine, and the heat of the water on the wet curtain absorbs the heat, forcing the air passing through the wet curtain to cool down. At the same time, since the water on the wet curtain evaporates toward the air flowing through the wet curtain, the humidity of the air is increased, so the wet curtain air cooler has the dual functions of cooling and humidifying. Advantages of air coolers compared with central air conditioners Industrial air coolers use water to evaporate and cool. The air supply distance is long and the air volume is large, which makes the temperature distribution of the enclosed space uniform and has a filtering function. The indoor environment is comfortable, the oxygen content is high, and the air is fresh. The traditional central air conditioner directly uses Freon refrigeration, the air supply temperature difference is large, the air volume is small, and the room temperature is not easy to be uniform. The ventilation and ventilation function is poor, and it is not suitable for semi-enclosed places. If it is used for a long time, it is easy to get "air conditioning disease".