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Chapter 8Boiler Operation Procedures
Taking Over a Shift • First-Time Boiler Start-up Procedures • Routine Boiler
Start-up Procedures • Boiler Maintenance Procedures • Boiler Shutdown
Procedures • Boiler Inspection • Hydrostatic Test • Boiler Troubleshooting
Chapter 8 — Boiler Operation Procedures
Boiler operation information is communicated to the boiler operator starting the shift to specify any special procedures required.
Chapter 8 — Boiler Operation Procedures
When blowing down the gauge glass, water should enter the gauge glass quickly when the gauge glass blowdown valve is closed.
Chapter 8 — Boiler Operation Procedures
During a bottom blowdown, the boiler should be under light load and the water level should be at the NOWL.
Chapter 8 — Boiler Operation Procedures
The blowdown valve is opened to evacuate the low water fuel cutoff chamber with the burner firing during blowdown.
Chapter 8 — Boiler Operation Procedures
When testing the flame scanner, the flame scanner sensor is covered to simulate a flame failure.
Chapter 8 — Boiler Operation Procedures
Before starting the boiler for the first time, the boiler should have a minimum water level of approximately 2″ above the bottom of the gauge glass.
Chapter 8 — Boiler Operation Procedures
The burner is started in low fire according to procedures specified by the manufacturer.
Chapter 8 — Boiler Operation Procedures
The boiler vent is closed when pressure in the boiler reaches 10 psi to 15 psi.
Chapter 8 — Boiler Operation Procedures
The main steam stop valve is opened slowly to allow the pressure to equalize when the boiler is a few pounds below the header pressure.
Chapter 8 — Boiler Operation Procedures
A broken or discolored gauge glass is replaced using standard procedures for maximum safety.
Chapter 8 — Boiler Operation Procedures
The low water fuel cutoff controls must be installed vertically for proper performance.
Chapter 8 — Boiler Operation Procedures
The burner is maintained and tested to ensure proper operation and maximum efficiency.
Chapter 8 — Boiler Operation Procedures
Feedwater pumps should be checked periodically to ensure proper bearing temperatures and checked for any unusual vibration.
Chapter 8 — Boiler Operation Procedures
Safety valves are routinely tested to ensure proper operation and must be serviced by an authorized manufacturer representative.
Chapter 8 — Boiler Operation Procedures
Steam traps are checked for proper operation when determining the cause of a steambound feedwater pump.
Chapter 8 — Boiler Operation Procedures
When inspecting a boiler, inspect tube sheets, tubes, and other internal parts for corrosion, overheating, and/or other damage.
Chapter 8 — Boiler Operation Procedures
Handhole covers are removed to provide access to boiler parts during a boiler inspection.
Chapter 8 — Boiler Operation Procedures
All internal surfaces are exposed and cleaned prior to the boiler inspection.
Chapter 8 — Boiler Operation Procedures
Troubleshooting steps from the manufacturer provide a guide to correcting a boiler operation problem.
Chapter 8 — Boiler Operation Procedures
The boiler room log lists boiler operation data that can be used to increase boiler efficiency and identify a potential malfunction.
