Operating Principle - Industrial Air IAD Serie Manual De Mantenimiento Y Operacion

Operating principle

1. Compressed air, with high temperature and humidity (relative 100%), from the compressor penetrates the dryer
through an air circuit/freon circuit plate heat exchanger. It is pre-cooled by the outgoing air, which is treated and
colder. Then it goes in the second section of the exchanger (air/freon) to be cooled.
2. The air cools down to attain a dew point temperature under pressure of 50°F rated flow. This cooling is controlled
by the refrigerating circuit. During this phase, the saturated steam transforms into condensed water which is then
evacuated through the drain device integrated in the plate heat exchanger (automatic purge).
If the flow is high, a hot gas valve regulates the temperature in the evaporator by an adjustment of the refrigeration
gas volume and constant dew point control. This avoids excessive cooling and maintains the cooling temperature
of the compressed air at a constant level.
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