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Safety trips simulation of boiler:
- Low - low level trip :
isolate steam and water valve then open drain of float chamber.
- High Pressure trip: reduce
settings of high pressure trip or raise steam to trip condition.
- Flame failure trip: pull out
the sensor to simulate flame out condition.
- FO pressure low: stop FO pump
- Atomizing steam pressure low:
shut atomizing steam pressure
- Control air pressure low:
shut control air valve to boiler controls
- Flue gas temperature high:
open the temp sensor and put in hot oil bath.
Boiler mountings:
- Safety valves
- Main steam stop valve
- Burner assembly
- Soot blowers
- Air vent
- Bottom blow down valves
- Scum blow down valves
- Furnace drain
- Gauge glass steam and water
valves
- Main and auxiliary feed water
valves
- Valves to pressure gauges and
transmitters
- Manholes,mudholes and
peepholes
- Valves for remote water level
indicator
- Steam and water valves for
lever alarms and trips
- Water sampling valve
- Chemical feed valve.
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© Marine Notes - MMD Exams India and Basics (M&K Groups Ltd)
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