Dryer flow diagram
Reference
Designation
Reference
Designation
1
Air inlet
7
Air outlet
2
Inlet selector valve
8, 9
Solenoid valve
3, 4
Desiccant tower
10, 11
Silencer
5
Purge nozzle
PI
Pressure gauge
6
Outlet selector valve
Operation principle (version without purge control)
The operation cycle of the dryer is repetitive and is controlled by a factory-set timer, programmed in the
central controller.
While the desiccant in one tower dries the compressed air, the desiccant in the second tower is being
regenerated. Regeneration of the desiccant is achieved by means of purge air from the drying tower.
The compressed air entering the dryer is led to one of the towers by means of the inlet selector valve. The
position of the selector valve depends on the condition (activated or not) of the solenoid valves. While the air
flows upwards through the tower, the desiccant adsorbs the water vapour and the compressed air is dried.
The dried air leaves the dryer via the outlet selector valve.
A small portion of the dried air passes a nozzle (5), expands to atmospheric pressure and flows downwards
through the other tower, regenerating (drying) the desiccant.
The regeneration air is released via the solenoid valve and the silencer of the regenerating tower. The solenoid
valves are controlled by the timer.
After a pre-set period, the function of the towers is reversed. The fully regenerated tower will now dry the
air, while the desiccant in the other tower will be regenerated.
By default, the regeneration timer will restart from the beginning of the cycle in case of a power failure during
operation.
Instruction book
2920 7099 70
15
Summary of Contents for dMED 100
Page 2: ......
Page 40: ...Inputs Instruction book 38 2920 7099 70...
Page 45: ...Instruction book 2920 7099 70 43...
Page 54: ...4 Installation 4 1 Dimension drawings Instruction book 52 2920 7099 70...
Page 55: ...Instruction book 2920 7099 70 53...
Page 56: ...Instruction book 54 2920 7099 70...
Page 57: ...Instruction book 2920 7099 70 55...
Page 58: ...Instruction book 56 2920 7099 70...
Page 59: ...Instruction book 2920 7099 70 57...
Page 60: ...Instruction book 58 2920 7099 70...
Page 61: ...Instruction book 2920 7099 70 59...
Page 62: ...References on drawings Instruction book 60 2920 7099 70...
Page 93: ......
Page 94: ...No 2920 7099 70 2012 01 Printed in Belgium www beaconmedaes com...