AIR DRYER INSTRUCTION MANUAL
2
DESCRIPTION
Function
Compressed air enters the air-to-air heat exchanger and is pre-cooled by
the chilled outgoing air. The air then enters the air-to-refrigerant heat exchanger
where it is further cooled by the refrigeration system. As the air is cooled, water
vapor condenses into liquid droplets. The air and entrained water droplets then
enter the separator where liquid water is removed. In addition, the air is filtered of
all solid particles three microns and larger. Clean, dry compressed air leaving the
dryer minimizes maintenance and repair of pneumatic distribution, instrument
and control, and actuation devices, reduces product contamination, and increases
productivity.
Working flow
Compressed air, saturated with water vapor, enters the dryer and is
pre-cooled by the outgoing refrigerated air in an air-to-air heat exchanger
(pre-cooler). It is a shell and tube type with cold air in the shell and the warm air in
the tube side. In the pre-cooler, the warm incoming air is pre-cooled and the
outgoing refrigerated air is warmed, this reduces the amount of heat that will have
to be removed later by the refrigeration system, providing a more energy efficient
dryer. The Pre-Cooled air enters the evaporator, where heat from the compressed
air is transferred to the cold refrigerant. The compressed air is therefore cooled to
a predetermined temperature, allowing water vapor to condense into liquid
droplets. The compressed air then flows to the moisture separator, where the
Содержание EDRYHT0028
Страница 1: ......
