Idiomas disponibles
Idiomas disponibles
HOW TO FIND THE CAUSES OF IMPROPER WORKING OF BURNERS USING TWO-STAGE LIGHT OIL AND
TYPE OF IRREGULARITY
Defective flame with sparks
Flame badly shaped with smoke and soot
Defective pulsating escaping flame or
receding from the combustion orifice
Corrosion inside the boiler
Soot at the chimney exit.
HOW TO RECTIFY THEM
POSSIBLE CAUSE
1) Atomizing pressure too low
2) Too much combustion air
3) Inefficient nozzle, either fouled up or worn out
4) Water in the fuel
1) Insufficient combustion air flow
2) Inefficient nozzle, either fouled up or worn out
3) Combustion chamber unsuitably designed or too
small
4) Delivery nozzle inadequate in respect to the com-
bustion chamber size
5) Refractory lining unsuitable or excessive
6) Boiler or chimney ducts clogged
7) Low atomizing pressure
1) Excessive draught (only when there is a suction
fan in the chimney)
2) Inefficient nozzle, either fouled up or worn out
3) Water in the fuel
4) Dirty disk
5) Excessive combustion air flow
6) Air passage between disk and blast tube
1) Boiler operating temperature too low (below the
dew point)
2) High sulphur content in the fuel
3) Smoke temperature too low (below 180 °C)
1) Excessive cooling (below 180°C) of smoke before
exit outflow, for an outside chimney not adequately
heat insulated or cold air infiltration.
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REMEDY
1) Re-set it at the required rating
2) Reduce combustion air flow
3) Clean it or replace it
4) Remove it from the tank using a suitable
pump (never use the burner pump for this
job)
1) Increase combustion air flow
2) Clean or replace it
3) Reduce the nozzle delivery rate to suit the
combustion chamber capacity or replace the
boiler
4) Increase nozzle delivery rate by replacing it
5) Modify it or make it lighter according to boiler
manufacturer's instructions
6) Clean them
7) Rectify and re-set at the required value
1) Adjust the suction fan speed by changing the
pulley diameter
2) Clean or replace it
3) Remove it from the tank with a suitable pump
(never use the burner pump for this job)
4) Clean it
5) Reduce combustion air flow
6) Rectify the position of the blast tube
1) Increase the operating temperature
2) Change grade of fuel
3) Increase the nozzle delivery rate by replacing
it
1) Improve insulation and close any gap letting
cold air in.
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