Freeze compression dryer for air compressor purification equipment

The compressed air goes into the pre-cooler(20,21 ) for precooling.Then goes to the heat exchanger(1), further bringingdown the temperature by the refrigerated air, meanwhile,draining out the condensate water. The air entrance to theevaporator for heat exchanging among the refrigerant(2-evaporator), and further cooled by the refrigerated systems.The compressed air goes through pre-cooler(20,21 ), heatexchanger(1) and evaporator(2) for cooling step by step, vaporof the air coagulates liquid water, and then through gas/liquidseparator(3), draining out the liquid.The dried air comes out from gas/liquid separator(3), next,goes through heat exchanger(1) for other flow. It's becamecalefactive when leaving the dryer.