Improvement of refrigerant condensing method for high energy efficiency on refrigerated air dryer/dehumidifier

摘要

A refrigerating system for improving energy efficiency is provided to improve energy efficiency according to increase of heat exchange efficiency, and reduce electric energy for condensation by applying the refrigerating system having three steps of a condensation method. A refrigerating system for improving energy efficiency comprises a condenser, an expander(30) and an evaporator(40). The condenser condenses refrigerant gas compressed and discharged from a compressor. The expander expands the condensed refrigerant gas. The evaporator evaporates the refrigerant. A first condenser(21) is installed in a front end of the condenser so as to be condensed by hot air made by air of a condenser fan.