VMP-IOMM-2018-2
Fulton Ltd
Page 44
OPERATION - 4
4.8.3
LONG TERM SHUT-DOWN (WEEKS)
4.8
BOILER SHUT-DOWN
4.8.1
SHORT TERM SHUT-DOWN (HOURS)
4.7.1
BOILER START-UP FOLLOWING SHORT TERM SHUT-DOWN
4.8.2
MEDIUM TERM SHUT-DOWN (DAYS)
To store the boiler in a corrosion-free situation there are two practical solutions:
1.
Fully flood the boiler to exclude as much air as possible.
2. Drain the boiler completely.
Remove all hand holes.
Open all gas/oil side access doors.
Additionally you could introduce a form of convection heating to the gas/oil and water side.
A very effective solution is to install a small heater.
If the boiler has been shut-down short term (see
Section 4.8.1 - Short Term Shut-Down
), the
large thermal mass in the boiler will maintain the internal temperature to a point that the boiler
can be simply switched on (preferably on low fire) and then left to reach working temperature/
pressure.
Switch Boiler switch to OFF on the boiler control panel switch.
The burner will stop firing, post-purge and then stop.
1. Shut the main steam valve.
2. Leave Pump switch ON.
3. Switch Boiler switch OFF.
4. Shut off fuel supply.
Note:
Ensure the boiler water treatment levels for dissolved oxygen are within the specified limits.
