Refrigeration compressed air dryer

According to the principle of refrigeration dehumidifying, thermally convert the muggy compressed air via an evaporator and make the compressed air frozen to pressure dew point at 2-10, so as to make the gaseous moisture to condense Into liquefied water which may be separated by using air-water separator and then discharged out via an automatic drainage devices. Thus, the purpose of de water and dry of freezing compressed air is fulfilled.