Greenhouse Cooling System

Cooling water curtain

Water curtain is a special paper honeycomb structure material, its working principle is "water evaporation absorbs heat" this natural physical phenomenon. That is, water flows from top to bottom on the corrugated fiber surface of the wet curtain under the action of gravity to form a water film. When the fast flowing air passes through the wet curtain, the water in the water film absorbs the heat in the air and evaporates away a lot of heat.

Basic information

Cooling water curtain in English name is (Evaporative Cooling Pad), it is divided into imported and domestic, Swedish imported material is better than domestic cooling effect.

The cooling system of water curtain wall is the principle of water evaporation and heat absorption, the principle of negative pressure ventilation, to discharge the exhaust gas, dirty gas and remove the high temperature and sultry heat.

The installation can effectively improve the high temperature and sultry environment of the factory building, make the temperature (32~45℃ high temperature environment) drop rapidly in 10 minutes, and keep the temperature at 26~30℃. This is the most comfortable working environment. Can improve staff efficiency, maintain high quality products.

Cooling air ventilation effect, can be very effective to solve 95~99% of the workshop high temperature sultry, air pollution problem temperature effect is obvious; can blow, can also draw air, quality assurance, is the best choice for greenhouse cooling ventilation.

Cooling water curtain is the most popular in the current industrial industry, its cooling and environmental protection effect, power saving effect is not available in other cooling equipment.

Cooling Principle

The cooling of wet curtain (water curtain) mainly uses water to absorb the heat in the air during the process of water evaporation, which makes the air temperature drop. A wet curtain is installed on one end of the gable wall or side wall of a closed building, a fan is installed on the other end of the gable wall or side wall, and the cooling fan draws out indoor air. Negative pressure forces outdoor air to flow through the porous wet curtain surface.

Water evaporation and heat absorption is a common physical phenomenon in nature. The principle of cooling water curtain is also used. The comprehensive application of wet curtain cooling system and negative pressure fan is the thermal principle of cooling air by using water evaporation and heat absorption. It fully shows the three elements of water evaporation and heat absorption principle:

And the water evaporation heat absorption efficiency is proportional to the above elements

1. Under the action of water pump and gravity, the water flows down from top to bottom, and the total area of the corrugated fiber surface of the wet curtain is more than 10 times the appearance area of the water curtain, so the contact area between the water film and the air is very large.

2. Because of the "pressure difference" caused by the exhaust of the negative pressure fan, the outdoor air will quickly detour through the cooling water curtain and collide with the water curtain water film, so that the heat in the air can be absorbed quickly by the wide area water film.

3. The water temperature rises, evaporation intensifies, evaporation intensifies, and the heat taken away by water increases. That is: the cooling effect is more obvious.

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