Learning chapter

Boiler

7 lessons

The auxiliary boiler end to end: how the plant works as five flows, safe start-up and shutdown, normal operation and load control, water treatment and blowdown, safety devices and emergency response, systematic troubleshooting, and survey and repair.

This chapter collects 7 illustrated lessons on Boiler as part of Auxiliary Machinery & Shipboard Systems, ordered as they are best studied. It opens with Boiler Plant Working Flow, Start-up, Raising Steam, and Shutdown, Normal Operation, Load Control, and Watchkeeping, Boiler Water Treatment, Testing, and Blowdown, Boiler Safety Devices and Emergency Response, Troubleshooting the Boiler and 1 more. Each lesson is written for MEO oral and written preparation: definitions first, then how the system behaves, then the checks and figures used in practice.

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01 Boiler Plant Working FlowHow a marine boiler works as five flows — feedwater, steam, fuel, air and control — and how any fault traces back to the flow that changed first.12 sections 02 Start-up, Raising Steam, and ShutdownMarine boiler start-up and shutdown step by step: pre-start checks, filling and venting, furnace purge, burner ignition, raising steam and lay-up.12 sections 03 Normal Operation, Load Control, and WatchkeepingRunning a marine boiler: watchkeeping round, drum level and pressure control, swell and shrink, feedwater control, excess air and soot blowing.8 sections 04 Boiler Water Treatment, Testing, and BlowdownBoiler water treatment and testing: scale, corrosion, caustic embrittlement, oxygen scavengers, phosphate, alkalinity and chloride tests, blowdown.12 sections 05 Boiler Safety Devices and Emergency ResponseBoiler safety and emergencies: gauge glass blow-through, low water level trip, safety valve setting and testing, flame failure and furnace explosion.8 sections 06 Troubleshooting the BoilerMarine boiler troubleshooting: black smoke, unstable flame, low and high water level, level hunting, pressure faults, tube leaks and false alarms.11 sections 07 Overhauling, Inspection, and RepairMarine boiler survey and repair: isolation, confined space entry, internal and tube inspection, plugging, mountings overhaul and hydraulic testing.10 sections