OGSI MOGS - 100, Инструкция по установке, эксплуатации и обслуживанию

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Effective 11/2010 21
The incoming air enters the machine through a filtered opening in the floor of the
machine frame. This opening is protected by a furnace filter type element, which is
12
”
x 16
”
x 1
”
. The air is drawn into the air compressor bank after being filtered through
one of two additional inlet air filters on the feed air manifold. The air is compressed in the
compressor bank and is directed through an air to air heat exchanger and into the grey
storage tank. The fan that is used in the air to air heat exchanger also serves the purpose
of drawing fresh air into the machine through the floor of the frame and removing the air
that is heated by the operation of the components inside the machine. The resulting hot air
is released through the top of the machine and can be ducted outside in hot environments
or used as a supplemental heat source in cold environments.
The clean compressed air is then sent into one of the five sieve bed sets. These are
the oxygen generators. Each bed produces oxygen until the sieve in that bed is saturated
with nitrogen. When this occurs, the feed air flow is directed to the other bed which
continues the production process. While the second bed is producing oxygen, the first bed
is releasing into the atmosphere the nitrogen it adsorbed, under very low pressure through a
waste gas muffler. As the air enters the bed, the nitrogen is adsorbed by the sieve and the
oxygen passes through as product gas.
The oxygen is then drawn through an oxygen booster which pressurizes the
product oxygen to a pressure of 70-90 psi (4.8-6.2 bar) and sends it to the green oxygen
storage tank. This oxygen storage tank serves as a reservoir for the oxygen prior to
entering the high pressure oxygen compressor. The oxygen product gas is then delivered
to the high pressure oxygen compressor where it is compressed up to 2200 psi (152 bar).
Oxygen is then delivered through a high pressure line either to the reserve cylinder bank
for trans-filling to smaller cylinders at a later time or sent directly to a small cylinder that
is filled inside the blast containment chamber. Once the system senses that the cylinders
are full it will automatically stop until new cylinders are connected for refilling.
Process Flow Description