Air cooler

watergasfor the food industry

The surface evaporative cooler is actually a heat exchanger combining the performance of water-cooled cooler with that of conventional packed cooling tower and also a heat exchanger between water cooler and air cooler. The surface evaporative cooler is characterized in that water is sprayed and forced ventilation is performed outside the dividing wall type heat exchanger,and the heat is transmitted from the cooled fluid in the dividing wall type heat exchanger to thespray water outside the wall, and then to air through forced convection between spray waterand air. The heat transmission from spray waterto air is achieved mainly by exchange of the latent heat from spray water evaporation with the sensible heat between spray water and air. Working Process The HT medium steam enters the coil set heat exchanger from the upper part of the surface evaporative cooler for condensation and cooling, and the condensed and cooled low temperature medium is discharged from the lower part of the surface evaporative cooler. Cooling water is ejected by the nozzle towards the coil set heat exchanger from its upper part under the action of the water pump; part water is evaporated and discharged together with the air flow from the fan, and most water falls back into the water tank at the evaporative condenser and enters the next cycle. Driven by the fan, air flows through the coil set heat exchanger from bottom to top, where air is of full heat-mass exchange with water to take away the heat released by HT medium and thus to achieve the purpose of condensation and cooling.