BOILER OPERATION AND MAINTENANCE TRAINING SESSIONS . ANSWERS ARE GIVEN ON PAGE FOR THE QUERIES AT kaacconsultant@gmail.com

6 Do’s and Don’ts for Boiler
Operation
DO’S
• Maintain all instruments in good working
condition
• All equipment interlocks should always be in
line
• Maintain normal water level in steam drum
• Maintain water quality as per the recommended
limits. A table showing the DM water & drum
water quality is included at the end of this
section
• FD damper must be in smooth operating
condition
• Pressure raising from cold start must be done
as per the cold start up curve
• All the duct joints must be leak proof
• Use proper lubricant and maintain the schedule
as recommended by the manufacturers
• Operate the boiler within the recommended
operation limits
• Boiler, piping, ducts must be properly insulated
• Servicing of equipments should be done as per
the manufacturer’s schedule
• Maintain proper operation log sheets regularly
• Maintain the instrument air free from moisture
and oily matters and the pressure as
recommended
• Carry out regular cleaning of direct water level
gauge glasses of Boiler drum
• Use proper valve gland packing to avoid
leakage
• Use proper gaskets for ßange joints
• Operate the blowdown valves as per
recommendation
• In case of power failure close the steam stop
valve
• If the water level goes up above the limits
operate the intermittent blowdown valve
immediately and maintain the water level to
normal
• Maintain the feed water temperature at
Economiser inlet and ßue gas temperature at
Economiser outlet as recommended
• Use genuine spares
• Boiler surroundings and equipments must be
properly illuminated
DON’TS
• Don’t bypass any instruments and safety
interlocks
• Don’t use raw water as boiler feed water
• Don’t operate the boiler beyond the operation
limits
• Don’t leave the furnace door open while the
boiler is in operation
• Don’t mix up different lubricants
• Don’t alter the equipment maintenance
schedule
• Don’t leave the instrument control panel
unattended
• Don’t allow unauthorised persons to operate
the boiler and associated equipments.
• Do not dose chemicals into the boiler in batch
wise, they should be done on a continuous
basis
• If boiler is running under combustion control
manual mode, then while increasing load
air should be increased Þrst followed by Fuel