The Brapu BPO-CR series steel open cooling tower evenly sprays hot water from the heat source onto the surface of the packing through a water distribution system. At the same time, air enters through the inlet grille of the cooling tower. After passing through the packing, a small part of the water is evaporated, thereby taking away heat and reducing the water temperature. Brapu cross flow cooling tower refers to a type of cooling tower in which hot water passes through the packing from top to bottom, while air flows horizontally through the packing. The flow direction of hot water and air is almost vertical. The cooling method of a cooling tower is to spray hot water onto the surface of the heat dissipation material and come into contact with the moving air passing through it. At this time, sensible heat Exchange interaction is generated between hot water and cold air, and part of the hot water is evaporated, that is, the latent heat of evaporation in the evaporated water vapor is discharged into the air, and finally the cooled water falls into the water tank, which is pumped to the heat exchanger to absorb the heat.