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Closed Cooling Tower
· Work Principle Closed type cooling tower is the equipment that makes work fluid(water or other liquid ) flow in closed pipes and isolated form air, heat through pipe wall exchanged to outside air,and finally makes the work fluid cooled down. Principle of the spray water cycle, commonly called extrinsic cycle, the same as opened type cooling tower: Spray water sucked from collecting tank by spray pump, flows into distribution basin, passes through perforated plate and flows into the heat-exchange fillings after evenly distribution, due to the working of fan, the speed-up evaporating part of water and taken away heat, spray water is cooled and heat transferred to the work fluid in the cooling coil pipes, after that cooling is completed. Finally spray water flows into the collecting tank, then to the distribution basin, and cycles continuously, so that work fluid is cooled continuously too.
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