Nortec DRAABE Pure Water System - Manual (Page 11)

Created: 21.09.2006
Changed: 29.02.2008
Printed: 02.03.2009
page 11 of 59
bar bar
activ charcoal filter microfilter 5 µ
0
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2
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4 5
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3.1.4
Basic System with Air Humidification
In addition to being used as process water, the pure water can also be used for humidifica-
tion of the air. With humidification there is a distinction between unitary and binary nozzle
systems.
The DRAABE high pressure pulsation system (HighPur) increases the pressure to about 80
bar (1232 psi) and conducts the water to the atomizers via the high pressure ring.
Binary nozzle systems need compressed air and water. The pure water produced by the
basic system with a working pressure of 2-3 bar (29-44 psi) is mixed with compressed air
(working pressure around 6 bar (87 psi)) and atomized.
3.2
System Description
The DRAABE Pure Water System is a modern water treatment system which provides for a
maximum of comfort and economy.
The system is built in dependence on the application and performance required. For this
purpose there is a variety of system components which differ primarily in their operating
data (e.g. pure water output, desalination performance). Greater performance of individual
components has an influence on the selection of other system components (e.g. water sof-
tener) and their installation and operation. It is possible to construct simple systems, double
systems and systems with several pure water subsystems.
The following sections describe the function of the individual system components.
3.2.1
Functional Description: Installation Rail
The installation rail has several tasks. First of all, it serves as the interface between the
drinking water network (company network) and the downstream water treatment system. A
non-return valve makes it impossible for treated water to get back into the drinking water
network.
Secondly, the water softener is bound to the installation rail (3). Various shut-off control
units (2) make it possible to replace the water softener by hand (e.g. for maintenance).
A two stage filter (4, 5) protects the downstream systems. The decrease in pressure across
the filters can be read from the two manometers (1, 6). Here, too, the shut-off controls
make it easy to carry out a replacement if that becomes necessary (see chap. 7.2). The wa-
ter pressure of the drinking water network (1) and of the filtered water (6) can be controlled
continuously.
After filtration comes a hand faucet (7) via which a water sample can be drawn at any time.
Figure 4: Installation Rail