CorroVenta A2, User Manual, Page: 8 / 20

© Corroventa Ltd. 2017.05 6 (17)
This is how the drier works
The desiccant used in CTR A is silicate gel, which can be regenerated an almost unlimited number of
times. Silicate gel is a crystal with a lot of microscopic pores that make the total surface very large. A
single gram has an active surface of 500 to 700 m
2
. Silicate gel is very powerful and can absorb a
volume of water of up to 40% of its own weight. It is not water soluble and therefore cannot be
washed away or diverted to the passing air.
Dehumidification process
The desiccant is placed in a rotor (1). The air to be dried is sucked in through the inlet (2) by
means of a process air fan (3).
The air passes a filter and then the drying rotor after which the dehumidified air goes through
the dry air outlet (4) to the area to be kept dry. The rotor has axially directed air ducts and
consists of a highly active desiccant, silica gel, bonded in a ceramic structure. The axially
directed air ducts in the rotor give laminar flow with minimal pressure drop.
The rotor rotates by means of a drive motor (5) and a drive belt (6). The moisture that
is adsorbed in the rotor is driven out by a small portion of the process air being heated by the
heater (7) and then passing a smaller part of the rotor, which is thus regenerated and cleaned
by the countercurrent principle.
The wet air is removed via the outlet (8) to the surroundings.