The main source of water in the compressed air is the water vapor inhaled by the air compressor along with the air. After the wet air enters the air compressor, a large amount of water vapor is squeezed into liquid water during the compression process, which will greatly reduce the relative humidity of the compressed air at the outlet of the air compressor. If the system pressure is 0.7Mpa and the relative humidity of the inhaled air is 80%, the compressed air discharged from the air compressor is saturated in the pressure state, but if it is converted to the atmospheric pressure state before compression, its relative humidity is only 6-10%. That is to say, the water content of compressed air has been greatly reduced. However, as the temperature in the exhaust pipe and gas equipment gradually drops, a large amount of liquid water continues to condense out of the compressed air.
