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AALBORG
INDUSTRIES
Language
UK
PRESSURE
JET
BURNER,
TYPE
KBO-E S05560_12#F.1
The oil is supplied through a ring line system arid connections to the burner unit are
made
of
flexible hoses.
Heavy fuel oil is heated in the pre-heater. The oil atomising temperature is controlled
by an electronic regulator which has to be set so that the viscosity
of
the heavy fuel oil
at the nozzle is between
14
-
16
cSt. .
Heating cartridges are placed in the solenoid valves and nozzle
he.ad
in order to keep
a sufficiently high temperature close to the nozzle.
The burner operation
is
handled by the control system. Electric signals corresponding
to the pressure gauge board signals are processed in the control system. Start/stop
signals as well as load regulation impulses are then send to the two servo motors, which
drive the oil regulator and air dampers respectively.In the event
of
fault conditions the
oil supply is always interrupted immediately.
The oil regulator regulates the oil flow through the nozzle by increasing or decreasing
the flow resistance. This causes that more or less oil is pressed through the nozzle as
the supply pressure from the oil pump is constant. The air dampers are connected
directly to the second servo motor. The control system provides the regulation
ofthe
air quantity in proportion to the oil quantity fired.
When the burner starts, and the ignition sequence step is reached, the oil flame is ignited
by means
of
the two ignition electrodes which are connected to a high voltage ignition
transformer. The electrodes are mounted just above the oil nozzle.
Flame failure during start-up and normal operation is detected by photo cells mounted
on the burner unit and coupled to the control system. By loss offlame, the flame failure
equipment will automatically shut down the burner.
19-3
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