IG or Inert Gas system safeties on ships

February 20, 2022 3
  • Scrubber cooling water low-pressure alarm (<0.06 MPa, Press. switch calibration)
  • Scrubber high level alarm (Float switch, cleaning).
  • Scrubber low level alarm (Float switch, cleaning).
  • Blower discharge gas high temp. (60°¢, Temp Sensor, Calibration).
  • Blower discharge gas extra high temp trip (65 degree Celsius).
  • Oxygen,0₂ Content high alarm (5%, Oxygen analyses filter change, calibration with nitrogen, pipeline cleaning).
  • Oxygen content extra high trip (6%).
  • Blower bearing temp high (temp Sensor, calibration).
  • Control air low pressure alarm (0.4Mpa, pressure switch, calibration).
  • Deck water seal low level alarm (FloatSwitch).
  • Deck water seal supply water flow low pressure alarm, 2 pumps.
  • Deck main line high pressure alarm.
  • Deck main line low pressure alarm.
  • Deck main line extra low pressure alarm & trip.
  • Soot blower interlock (uptake valve, Steam cleansing).
  • Deck Isolation valve (checking ceperation, Pneumatic cylinder).
  • PV breaker (water level).
  • PV valve.
  • Mast Riser (Flame trap cleaning).
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