Marine boilers rely on efficient safety systems for fuel supply:
Low Fuel Oil Pressure Alarm: Two pumps ensure constant fuel supply. Low pressure can lead to burner blowback. The operator must address the cause.
Low/High Fuel Oil Temperature Alarm: Controls fuel viscosity for combustion. The alarm triggers if the temperature is not at the set value. The operator must normalize the temperature before restarting.
Flame Failure Alarm: Photocell detects flame presence. The alarm sounds if the burner stops abruptly or fails to produce flame during start.
Smoke Density Alarm: Monitors post-combustion smoke. The alarm triggers if density exceeds limits, prompting the operator to check combustion.
Force Draught Fan Stop Alarm: Ensures proper air-fuel mixture. The alarm activates if the forced draught fan is not operational, requiring attention for efficient combustion