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Table 9.4 Checking List on Combustion (1/2)
Item
Contents
Checking Procedure
Frequency
Semi-
annually
or more
Annuall
y
or
more
Piping
Leakage
Check by soap water, pressure drop or
smell
○
Corrosion, mechanical
damages, etc.
Visually check corrosion and damage
○
Valves
and
Accessories
Leakage
Check by soap water or smell
○
Operability of valves
Check valve and cock for looseness and
operability, and check fuel control valve
for actuation and movement of linkage
○
Pressure
Controller
(Governor)
(applied
for
gas fired type)
Actuation
Check pilot and main governors for
actuation and controllability
○
Strainer
Clog
Pay attention to gas pressure or oil
pressure during operation and clean it
when it goes down
○
Forced Fan
Driving
parts
and
bearing
Check the motor for vibration, noise and
overheating
○
Burner
Visual check
Check damage
○
Pilot burner
(applied for gas fired
type)
Check sparking, deterioration of plug,
insulation of insulator, combustion, ignition
of main burner, etc.
○
Main burner
Check combustion (stability of flaming),
noise and gas flow rate (at maximum) and
analyze exhaust gas (inspection of air-fuel
ratio)
○
Nozzle
and
its
accessories
Check flame protecting plate, electrode
for ignition and nozzle and clean them
○
(Once a
month)
Table 9.4 Checking List on Combustion (2/2)
Summary of Contents for HDFN-80-1400
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