Trotec TTR 200, Руководство по эксплуатации

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Operating manual – Dehumidifier TTR 200/300 EN(UK)
B-3
Functional principle
Adsorption dehumidifiers work with a drying wheel (rotor) consisting of
layers of flat and corrugated fibres with a chemically bound silica gel.
This generates a honeycomb structure with numerous axial air channels
with a large surface and direct connections to the inner pore structure of
the silica gel.
Due to the favourable mechanic and physical properties of the dry-
ing wheel, no silica gel is released and can be subject to saturated air
(100% rh), however, not to drips of water. It is not flammable.
The basic design of a dehumidification unit is as follows:
Fan(s) for air delivery
At least two different sections for delivery of process air (to be dehu-
midified) and regeneration air (humid exhaust).
Drying wheel for dehumidification
Drive unit with gear motor, toothed belt disc and toothed belt
Heating unit for heating of the regeneration air
During dehumidification, the drying wheel continuously turns at low
speed (3 to 30 rpm, depending on the configuration). This way, process
air and regeneration air are simultaneously applied to the drying wheel
via the sections so that it can permanently absorb and release humidity.
Process air
Air to be dehumidified is taken in by means of a fan. The process air (4)
flows through the dehumidification section (1) of the drying wheel. In this
process, the humidity in the air is removed by means of the sorbent (silica
gel) and bound (adsorption). Due to physical processes, the temperature
of the drying air is increased. In the further process, the dried air (6) is
delivered to the drying air outlet. A small portion of the flow is separated
in the device as regeneration air.
Regeneration air
The heated and dried regeneration air reduces the heating energy de-
mand and supports regeneration of the drying wheel. When flowing
through the heating unit (7), the temperature of the air is increased to
approx. 100 - 120 °C (depending on the intake temperature), while its
relative humidity is considerably reduced.
Afterwards, the air that was prepared in this process absorbs the humid-
ity bound in the silica gel (desorption) when passing the regeneration
section (2). Afterwards, the extremely humid regeneration air (8) is deliv-
ered outside through the humid air outlet.
Fig.: Functional principle
7. Description of device
Structure and components
1
2
3
Fig.: Front side
1 Handle
2 Drying air outlet
3 Device feet
8
7
4
5
6
9
10
11
Fig.: Rear side
4 Power switch
5 Fan speed controller
6 Connection of external hygrosta
t
7 Intake cover coarse dust filter
8 Ampere meter
9 Operating hour counter
10 Humid air outlet
11 Connection cable
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