Monday, January 6, 2020

Boiler water level going down/ not maintaining

  • Feedwater pump failure or efficiency reduced
  • Control valve failure
  • Loss of water to the deaerator or make-up water system
  • Drum level controller failure
  • Drum level controller inadvertently left in "manual" position
  • Loss of plant air pressure to the control valve actuator
  • Safety valve lifting
  • Large, sudden change in steam load
  • Blowdown valve not closed properly or leaking.
  • Feed water control bypass valve opened more

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