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AALBORG
INDUSTRIES
OIL/AIR REGULATION OM5560_95#A.2
Oil/air regulation
1
Language UK
Oil/air regulator
The oil and air regulation for the burner are handled by two servomotors. The oil flow
is regulated bya valve, which is regulated by a servomotor. The air damper is regulated
by a second servomotor.Figure 1 illustrates the regulator system.
The servomotorsare controlled by the control system during start-up/stop and operation
of
the burner.
Illustration
of
the regulator system
A
B
c
Figure 1
2
1 Air damper
2 Servomotor
3
Oil regulator
4 Dosing nozzle
5 Dosing shaft
6 Servomotor
A
Oil
inlet
BOil
retum
C Air
om5560 _95 _ oilburx0055900en.
wmf
The oil quantity burned
is
determined by nozzle size and oil pump pressure. The oil
regulator regulates the return oil flow according to the capacity
~emand.
At partial load
the oil regulator
is
open so that the oil throughput
in
the valve
is
at maximum and the
return oil flow pressure at minimum. At full load the oil regulator is closed whereupon
the oil throughput is at minimum and the pressure at maximum.
21-19/60
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