FULTON 60J - Draining the Boiler; Long Term Shut down

J OIL-E-08 2008
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3.9 DRAINING THE BOILER,
Boilers with manual blowdown valves
CAUTION
Your local regulations could state boiler water above 43
O
C must not be discharged into the drain.
ALWAYS check your local regulations.
1. Ensure the boiler is cold.
2. Isolate the boiler electrics at the isolator on the control box door.
3. Isolate the feed water tank and the feed water pump.
4. Open the main steam valve and the boiler drain valve.
5. Open the drain valve on the blowdown vessel.
6. Open all valves in the drain lines.
Boilers with automatic blowdown systems
1. The boiler should not be under pressure.
The boiler should be cold.
2. Close the blowdown isolation valve.
3. Using a screwdriver located as shown ‘A’, push up and make a quarter turn,
this will lock the button in position and open the blowdown valve.
4. Usingtheblowdownisolationvalvetothrottletheow,draintheboiler.
Note: Skid units and plant rooms have internal drainage systems which require the same procedures.
3.10 LONG TERM SHUT DOWN
To store the boiler in a corrosion-free situation there are three practical solutions:
1. Fullyoodtheboilertoexcludeasmuchairaspossible.
2. Drain the boiler completely.
Remove all hand hole and manhole doors.
Open all gas/oil side access doors.
3. As (2) but also introduce a form of convection heating to the gas/oil and water side.
A very effective solution is to install a string of outdoor type waterproof light bulbs distributed
throughout the boiler.
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