5.2 Operation
General
Condensate flow scheme
1 Condensate inlet
2 Foam cover
3 Oleophilic filter
4 Service drains with valve
5 Air injection connection
6 OGC filter
7 Activated carbon filter
8 Condensate test outlet
9 Condensate outlet
The OSCi 3790 housing consists of 3 interconnected vessels. The oil-containing condensate is
injected (1) in discontinuous bursts at a downward angle into the first vessel which acts as
expansion chamber. The specially designed cover has a combination of pressure-relieving holes
and a foam (2). Since the pressure is relieved here, the entire OSCi device is pressureless. In the
first vessel, a floating filter (3) made of special synthetic fibres takes up most of the directly
separable hydrocarbons from the condensate. The filter sinks as it saturates with hydrocarbons
and hence the lifetime progress of the filter can be measured by an indicator that rests on the
bag. A conventional sight glass is installed for visual inspection of the filter position and the
condensate level. On top of that, an electronic position sensor (8 - View of OSCi, 1 - View of
OSCi inlet) is connected to the controller of the compressor to keep track of the filter lifetime
without the need to open the compressor canopy.
The outlet of the first vessel is situated at the bottom and is connected to the upper half of the
second vessel. In the second vessel, the pre-filtered condensate is brought in contact with a filter
Instruction book
92 2920 7109 51
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