The aluminum air cooling condenser uses air as the cooling medium, and the temperature rise of the air takes away the heat of condensation.In the refrigeration system, the evaporator, the condenser, the compressor and the throttle valve are the four essential parts in the refrigeration system. The general refrigeration principle of the condenser is to suck the compressor into the lower pressure from the evaporator. Working medium steam, and then compress the steam with lower pressure of the compressor into steam with higher pressure, so that the volume of the steam is reduced and the pressure is increased, so that the pressure is increased and then sent to the condenser, where it is condensed into The liquid with higher pressure, after being throttled by the throttle valve, becomes liquid with lower pressure, and then sent to the evaporator, where it absorbs heat and evaporates to become steam with lower pressure, so as to achieve the purpose of refrigeration cycle