Oleosmart-Pr-C-Nst Ns40 To Ns90 - ACO Oleosmart-C-OST Instructions De Service Et De Maintenance

Operating and maintenance instructions
Coalescence channel
The guide walls of the coalescence
channel in the Oleosmart are made of an
oleophile material, as are the perforated
sheets, which serve as flow straighteners
or turbulence generators, depending on
the layout. The oleophile material supports
the coalescence of the smallest oil drop-
lets. Depending on the nominal size of the
separator, either the full surface or only
some of the surface of the coalescence
channel is above the sludge trap. The pur-
pose of this is the optimum separation of
the light liquid and the optimum sedimen-
tation of solids. Depending on the nominal
size, a different flow length of the waste
water-light liquid-sludge mixture, which
has not yet been fully separated, is requi-
red for the phase separation. After the
light liquid and the solids have been sepa-
rated from the waste water, the light liquid
collects on the surface of the water and
the sediment falls into the sludge trap at
the end of the lower barrier between the
coalescence channel and the sludge trap.
3.2 Oleosmart-PR-C-NST NS 40 to NS 90
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Fig. 2. Oleosmart PR-C-NST NS 90 filter-free light liquid separator
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Protective pipe with dirt trap and
automatic seal
The protective pipe at the float outlet
serves to protect the automatic sealing
device, which is known as the float
switch. The float switch is fed inside this
protective pipe. In the upper area, the
protective pipe is solid, whereas in the
lower area there are holes which allow the
waste water to flow through after it has
been cleaned of oil and sediment. Shortly
before the maximum permissible oil level
has been reached, the light liquid flows
below the protective pipe into the interior
of the protective pipe to the float switch.
This compartment was previously free of
light liquid so that the float switch always
floated near the water surface. After oil
has entered this compartment, however,
the float switch begins to sink and gets
ready to close the separator. If more oil
is now fed into the separator and the
maximum permissible storage capacity is
then reached, the float switch immediately
closes the outlet. It is now impossible for
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oil to leak into the outlet and thus into the
sewage system or the outlet.
1 Intake pipe
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2 Coalescence channel
3 Flow straighteners (perforated sheets)
in the coalescence channel (a total of
three switched one after the other in
each coalescence channel)
4 Perforated coalescence pipe, arranged
around the float cage
5 Outlet
6 Reinforced concrete container
7 Entrance
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