A compressed air dryer is a device for removing water vapor from compressed air. Compressed air dryers are commonly found in a wide range of industrial and commercial facilities.
The process of air compression concentrates atmospheric contaminants, including water vapor. This raises the dew point of the compressed air relative to free atmospheric air and leads to condensation within pipes as the compressed air cools downstream of the compressor.
Excessive water in compressed air, in either the liquid or vapor phase, can cause a variety of operational problems for users of compressed air. These include freezing of outdoor air lines, corrosion in piping and equipment, malfunctioning of pneumatic process control instruments, fouling of processes and products, and more.
There are various types of compressed air dryers. Their performance characteristics are typically defined by the dew point.
- Regenerative desiccant dryers, often called "regens" or "twin tower" dryers
- Refrigerated dryers
- Deliquescent dryers
- Membrane dryers
Water vapor is removed from compressed air to prevent condensation from occurring and to prevent moisture from interfering in sensitive industrial processes.
Read more about Air Dryer: Characteristics, Refrigerated Dryer, Deliquescent Dryer, Desiccant Dryer, Membrane Dryer, Usage
Famous quotes containing the word air:
“Make me a willow cabin at your gate,
And call upon my soul within the house;
Write loyal cantons of contemned love,
And sing them loud even in the dead of night;
Halloo your name to the reverberate hills,
And make the babbling gossip of the air
Cry out “Olivia!” O, you should not rest
Between the elements of air and earth
But you should pity me.”
—William Shakespeare (1564–1616)