The compressed air produced by the compressed air compressor carries a significant amount of water, oil and other impurities. If water vapor enters the compressed air lines, the condensed vapor causes oxidation, corrosion and destruction of production line equipment.
The maximum condensation point of water vapor in any gas depends on its temperature and pressure. When the water density reaches a certain temperature and working pressure, that temperature indicates the dew point. That is, if the coldness of the air reaches below the dew point, the water vapor in the air will appear in the form of water droplets, which will cause problems in the production line. The dew point of diskant dryers is -20 to -70 degrees Celsius.
How absorption dryer works:
The air first enters a tower and is dried. For a certain period of time, water is transferred to the desiccant material until the water pressure in the air is equal to the pressure on the surface of the material. At this time, the control system directs the air to the second tower to continue the dehumidification operation. The desiccant materials in the first tower have a chance to regenerate. In this process, the intelligent PLC system manages solenoid valves and timers
