MAN B&W 5L28/32H, Manual

Page: 90 / 218

08028-0D/H5250/94.08.12
General
Eng. No 2
Eng. No 1
To/from lub.
oil separator
Eng. No 3
Fig. 2 Principle lay-out for direct separating on a multi plant.
Overflow
tank
Separator
unit
Fig. 3 Principle lay-out for overflow system.
Venting
hole
98.33
B 12 15 0
Treatment of Lubricating Oil
1643494-3.3
Page 2 (2)
Oil level in
base frame
The aim is to ensure that the separator is only
connected with one engine at a time. This to ensure
that there is no suction and discharging from one
engine to another.
To provide the above-mentioned it is recommended
that inlet and outlet valves are connected, so that
they can be changed-over simultaneously.
To/from separator Engine
Fig. 1 Principle lay-out for direct separating on a single plant.
With only one engine in operation there are no
problems with separating, but if several engines are
in operation for some time it is recommended to split
up the time so that there is separation on all engines,
which are operating in turns.
The capacity of the separator has to correspond with
the separating of oil on the single engine n times
during the available time, every 24 hours. (see page
1)
Overflow System
As an alternative to the direct separating an overflow
system can be used (see fig. 3).
By-pass Centrifugal Filter
The Holeby GenSets can be delivered with built-on
by-pass centrifugal filters.
By-pass Depth Filter
When dimensioning the by-pass depth filter the
supplier’s recommendations are to be followed.