They consist of an air-to-air heat exchanger and an air-to-Freon heat exchanger. The compressed air from the compressor first passes the air-to-air heat exchanger. In this phase the incoming air is pre-cooled by the outgoing air and the outgoing air is heated. A compressed air dryer is a piece of equipment designed to separate water vapor or moisture (de-humidify) from industrial process air. In the typical system, a compressor draws in humid air and compresses it, which raises the air temperature and then cooling the air condensing water vapor out of the unit. A compressed air dryer is a piece of equipment designed to separate water vapor or moisture (de-humidify) from industrial process air. In the typical system, a compressor draws in humid air and compresses it, which raises the air temperature and then cooling the air condensing water vapor out of the unit. Many tools and equipment, driven by compressed air, cannot withstand water or moisture. Many processes, using compressed air, are processing products that cannot withstand water or moisture. Inherent to the compression cycle, free water is often formed in the compressed air circuit. Untreated compressed air, which contains solid, liquid, and gaseous contaminants, poses a significant risk as it can damage your air system and your end product. Air dryers remove moisture from the air.
Each dryer system- desiccant dryer, refrigerated dryer, and membrane dryer, uses its own technique.
The measurement of dry compressed air after processing is known as its 'dew point'. The lower the temperature of the dew point, the less amount of water vapor in the air. Dew point means the actual temperature where condensation begins. For example, if the dew point is -40 C° this means condensation starts only if compressed air temperature goes down to -40 C°.
