Closed cooling tower working principle

      The closed cooling tower with two type of cooling: air cooling, air cooling and spray.
　　Air cooling, by air flow’s speed, and can greatly enhance heat transfer in high temperature region.
　　Air cooling and spray. The spray water sprinkling on the surface of the tubes by spray pump, so the condition when a film of water builds up and around the heat exchange tube. Dielectric heating and make the water film evaporated rapidly. The water from liquid state to gas state. water can absorb heat and boil away. so as to lower temperature. Meanwhile, the fan can take the steam out with powerful and quickly. The low-humidity atmosphere Added in from the air-inlet grille. This condition once again and perpetuating the cycle. the water vapour take part of water-drop out, recycle and Drip back in header tank by water collector,then recycle by spray pump again and again.
　　The Cooling medium is drive by recycle pump which is closed cycle in the heat exchange tube. And the heat energy is absorbed by the streaming air and superheated steam. more efficient to play a role of cooling.