Water curtain is a special paper honeycomb structure material, and its working principle is the natural physical phenomenon of "water evaporation and heat absorption". That is, water flows from top to bottom under the action of gravity, forming a water film on the corrugated fiber surface of the wet curtain, when the fast-flowing air passes through the wet curtain, the water in the water film will absorb the heat in the air and then evaporate, take away a large amount of heat, so that the air temperature through the wet curtain is reduced, so as to achieve the purpose of cooling.
The water curtain wall cooling system is based on the principle of water evaporation and heat absorption, and the principle of negative pressure ventilation to discharge the exhaust gas and sewage gas in the plant and relieve the high temperature and stuffiness.
After installation, it can very effectively improve the high temperature and stuffy environment of the plant, which can make the temperature in the plant (32~45 °C high temperature environment) drop quickly within 10 minutes, and keep the temperature at 26~30 °C, which is the most comfortable working environment for the human body, which can improve the work efficiency of employees and maintain the high quality of products.
Its cooling, ventilation and ventilation effect can very effectively solve the problems of high temperature, stuffiness and air pollution in 95~99% of the plant, and the temperature effect is obvious; It can be used for both blowing and exhausting, and is the best choice for cooling and ventilation in greenhouses.
Cooling water curtain is the most popular in the current industrial industry, and its cooling environmental protection effect and power-saving effect are not available in other cooling equipment.
Wet curtain (water curtain) cooling mainly uses the physical principle that water absorbs heat in the air during the water evaporation process and causes the air temperature to drop. In practice, it is used with a negative pressure fan, the wet curtain is installed on the gable or side wall at one end of the closed house, and the fan is installed on the gable or side wall at the other end, and the cooling fan extracts the indoor air, and produces negative pressure to make the outdoor air flow through the surface of the porous moist wet curtain, so that a large amount of heat in the air is converted and processed, so as to force the air entering the room to be reduced by 10-15 °C, and continuously introduced into the room for heatstroke prevention and cooling.
The comprehensive application of wet curtain cooling system and negative pressure fan is the thermal principle of water evaporation and heat absorption to cool the air, which fully demonstrates the three major elements of the principle of water evaporation heat absorption:
1. The surface area of water in contact with air
2. The velocity of the air
3. The temperature of the water itself
And the heat absorption efficiency of water evaporation is directly proportional to the above factors
1. Under the action of water pump and gravity, water flows from top to bottom, forming a folded water film with a total area equivalent to more than 10 times the appearance area of the water curtain on the corrugated fiber surface of the wet curtain, so the contact area between the water film and the air is very large.
2. Due to the "air pressure difference" caused by the exhaust of the negative pressure fan, the outdoor air will quickly pass through the cooling water curtain and collide with the water curtain water film, so that the heat in the air can be quickly absorbed by the water film in a wide area.
3. As the temperature of the water increases, evaporation increases, and as evaporation increases, the amount of heat taken away by the water increases. That is, the more obvious the cooling effect is.