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4. Composition and function of
the HygroMatik high-pres-
sure nozzle system HPS
4.1 Fields of application
Typical application of the high-pressure noz-
zle system is the humidification of an supply
air stream. As an order option, a particular
unit variant is available that is used for
exhaust air cooling. An other order option is
the „Combined system“ that supports both
operation modes. In a combined system, the
actual operation is determined by the termi-
nal wiring that usually encompasses a
switch for mode selection.
4.2 Functioning
The high-pressure nozzle system is based on
atomisation of water.
Desalinated water is fed into a high-pressure
piston pump. With an operating pressure of
up to 75 bar, the water is atomized by means
of high-pressure nozzles. These nozzles
generate a very fine spray mist which is
taken up by the air in the humidification
chamber. The ambient air is cooled adiabati-
cally in the process
4.3 Schematic diagram of the
system components
4
29
28
21
27
26
25
24
9
20
22
23
9 Electrical connections
25 Water filter with pressure gauge
20 spray system (exemplarily shown with two
nozzle segments)
26 Water supply via cock
21 pressure hoses,
max. length 15 m
(49 ft.)
27 Water drains (siphoned)
22 high-pressure pump group, control
28 aerosol separator (2 step), exemplary
23 1¼ “water drain hose to free running tap
29 Installation in humidification cabin with darke-
ning window (according to VDI 6022) and wa-
ter tray or in a duct with service doors and
water tray
24 water supply connection hose