6.4
The Comyn oil/water
Separater
6.4 The Comyn oil/water
Separater
6.4 The Comyn oil/water
Separater
General Operating Procedure
? Before pumping oily water into the separator it
is important that the separator is completely
filled with clean water,either direct from the
sea or through the filling valve provided for
this purpose,It is essential to keep the lower
internal surfaces and outer chamber from
becoming coated with oil.
6.4 The Comyn oil/water
Separater
? To fill the separator,slightly open scum-valve,
also high level test and air release valve to vent
the separator during filling,When water flows
freely from these valves close and stop filling.
Close filling valve.
? Before commencing to pump oily water through
the separator,ensure that water discharge valve
on ship's side is open,to allow the water effluent
to be pumped overboard.
6.4 The Comyn oil/water
Separater
? Slightly open both mixture inlet test valve
and high-level test valve,Leave these two
valves slightly open during the working of
the separator,Mixture inlet test valve will
indicate the nature of the mixture entering
the separator,while high-level test valve
will free the separator of air and also
denote the presence of oil within the oil
recovery dome.
6.4 The Comyn oil/water
Separater
? Procedure using automatic control Switch on the
electronic control panel,If water completely
covers the electronic probe the green indicator
light will show,Alternatively,if the water level
in the oil dome,after Filling,is below the level
of the electronic probe,the red indicator light
will show,in addition to the green indicator light,
and the alarm bell will ring.
6.4 The Comyn oil/water
Separater
? Check that the emergency hand control wheel
fitted to the automatic oil outlet valve is in the
open position.
? Check that the operating air or water pressure is
1.4-3.5 bar.
? Open air or water supply to solenoid pressure
control valve.
6.4 The Comyn oil/water
Separater
? On commencing to pump oily water into the
separator,the clean water surrounding the
electronic probe causes the coil of the solenoid
pressure controller to become energized and
move the pilot valve to the open position,closing
the outlet previously open to vent,Air is
permitted to pass to the top of the diaphragm
operated oil discharge valve and immediately
closes it.
? As the pressure within the separator builds up to
approximately 0.75 bar the spring-loaded water
discharge valve opens.
6.4 The Comyn oil/water
Separater
? A gradual build-down of oil takes place,which,
in time,completely covers the electronic probe.
At this juncture the control unit de-energizes the
coil of the pressure control valve,returning it to
the open to vent position,This permits the spring
assisted oil recovery valve to open,and any oil
present within the separator is automatically
discharged back to the oil storage tanks,The red
and green indicator lights will show on the
control panel.