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Refrigeration Dryer

July 9, 2011

 

Refrigeration dryer operates on the method of cooling the air to near freezing point to remove the moisture and reheating it to approximately 10°C below the incoming compressed air temperature at nominal conditions. 

For general plant air, dew points of 2°C to 4°C are considered adequate, well within the range of refrigeration dryers. Refrigeration type dryers use less energy and hence are lower in first and operating costs.

The refrigeration type air dryer is a packaged self contained unit, fully automatic and produces a steady level of dew point. There is no regeneration cycle with complex valving, no periodic recharging of chemicals, oil in the air stream does not affect performance.

How does it work?

Delair refrigeration dryers operate on the method of cooling the air to near freezing point to remove the moisture and reheating it to approximately 10°C below the incoming compressed air temperature at nominal conditions.

The dryer consists of an air drying unit with cyclone type condensate separator and a refrigeration circuit.

The refrigeration circuit consists mainly of a compressor, a condenser, a receiver with liquid refrigerant and an evaporator.

The air drying unit consists of two kinds of heat exchangers, one or more air to air heat exchangers and one or more refrigerant to air heat exchangers.

The Heart of the system is the special foamed in, patented Heat Exchanger which makes it outperform other Dryers. 

The function of the air to air heat exchanger is to lower the load on the refrigerant system and secondly by warming the outgoing cold air pipelines to the required temperature.

The refrigerant to air heat exchanger(s) further cools the air to the required temperature thus condensing the water vapour from the air, which is automatically drained. This cooling cycle is continuously repeated. 

Key Features of Delair Refrigeration dryers :

  • Available in 32 standard models
  • Capacities from 18 cmh to 10,000 cmh (10.6 cfm to 6000 cfm)
  • Mimic display to read out dew point, operating status, faults indication.
  • Provides pressure dew point down to 4°C
  • Unique pantented, foamed in heat exchanger (heat exchanger may vary from model to model).
  • Eco Friendly
  • Certified and reliable performance
  • Energy saving
  • Designed specially for Tropical Conditions
  • Unique volume liquid Accumulator
  • Compact design.

 

 
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