From the perspective of drying performance
Freeze dryer has lower energy consumption and operating cost than adsorption dryer, but it cannot provide deep dry compressed air like adsorption dryer. The pressure dew point of freeze dryer is usually above 3"Ctd. For general As far as the manufacturing process is concerned, it is sufficient to choose a air dryer refrigerant ; for some higher requirements and drier compressed air, an adsorption dryer should be selected.
From the perspective of the installation environment
The refrigerated dryer has weak adaptability to the environment. Too high or too low ambient temperature is not conducive to the operation of the equipment: too high ambient temperature will lead to an increase in the condensation pressure of the refrigerant in the air-cooled refrigerated dryer, which will reduce the cooling capacity and increase The pressure dew point at the outlet of the equipment; if the ambient temperature is too low, especially below 0°C, ice blockage will easily occur when the condensed water of the cold dryer is discharged outside. Adsorption dryers have relatively strong adaptability to ambient temperature, but the influencing factors of high compressed air pressure dew point value caused by high air compressor outlet temperature at the highest ambient temperature must be taken into account when selecting equipment.
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