The invention relates to an air compress refrigeration drier, which comprises a precooler, a full-liquid tube vaporizer, a filter gas-water separator, an automatic water discharger, a coolant compressor, a condenser, and an expansion valve. Wherein, said precoolerm full-liquid tube vaporizer, filter gas-water separator, and automatic water discharger are connected to form the compressed are cycle circuit. Said coolant compressor, full-liquid tube vaporizer, expansion valve and condenser are connected to form the coolant cycle circuit. Since it uses full-liquid tube vaporizer, the efficiency of said vaporizer and compressor are improved, and the heat transmission efficiency is improved too. |