MDA Technologies 3/2016

COMPRESSED AIR NEWS
Product News
Turbo blowers for small and medium
volume flows
The Aerzen turbo series TB was particularly developed for
biologically operating wastewater treatment plants with small
and medium volume flow requirements. It has now been
revised. Aerzen sells the packaged units in 11 series which
offer air volumes from 300 to 6,000 m³/h for pressure ranges
from 300 to 1,000 mbar. The innovative system experienced a
number of constructive
adjustments resulting in
another positive effect on the
energy saving. Constructive
improvements within the
packaged unit ensure an
optimised air guidance which,
eventually, minimizes
pressure losses at the intake
side. Since electrical and
mechanical engineering are
separated by open ground,
heat losses of the power
electronics are not passed to
the process air. The separation
increases the efficiency and
the reliability of the electrical engineering.
The plug&play system operates almost maintenance-free and
absolutely oil-free; only filters have to be changed in regular
cycles. The air flow is not measured indirectly, as it is the
conventional way, i.e. derived from the power consumption.
It is performed according to the Venturi principle. By means
of a differential pressure measurement the real air-mass flow
is measured in the inlet cone of the stage. In this way, the
packaged unit provides real measured values for the monitoring
and the internal safety devices. The extremely fast
response characteristic of the frequency converter enables it
to compensate difficult conditions, as for example to react on
pressure fluctuations by fast change of speed. The result is a
significant minor sensibility of the turbo blower throughout
the total control range. Thus, users can comprehend at any
time the exact quantity that is really led into their tanks. This
parameter is also shown directly via the control system.
www.aerzen.com
background: fotolia
In-house oxygen production: flexible
and efficient
With the Boge generator types O 3 P to O 15 P, and O 3 PE to O
15 PE, users have a safe and reliable all-in solution for
producing oxygen with adsorption technology. This proven
process lets users generate their own inexpensive, tailor-made
and dependable supply of oxygen on site, with purity levels
reaching 90 to 95 percent. Whether for water treatment, the
medical sector, mining, welding or fish farming – the new
Boge oxygen generators can be used wherever oxygen
enrichment and thermal processes take place. The advantages
of in-house oxygen production are obvious in comparison to
oxygen deliveries from external suppliers – users obtain
precisely the purity, output and amount of oxygen they need
for their processes.
As a system provider, Boge offers an ideally matched complete
system comprising a compressor, filter, refrigerant dryer,
activated carbon adsorber, compressed air container, oxygen
generator and oxygen container. If a compressed air station is
already available, generators can easily be connected to the
existing network. To produce
oxygen, the generators require
class 1:4:1 treated compressed
air complying with ISO 8573-1
(with an additional activated
carbon adsorber). The
quantity of compressed air
that is needed depends on the
oxygen purity required.
www.boge.com
MDA Technologies 3/2016