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Deaerator

A deaerator is a crucial piece of equipment designed to remove dissolved gases, primarily oxygen and carbon dioxide, from a liquid, typically water, before it is used in industrial processes, particularly in boiler feedwater systems. Oxygen and carbon dioxide can cause corrosion and pitting in metal components, leading to equipment failure and reduced efficiency. Deaerators utilize physical principles such as heating, spraying, and steam stripping to expel these harmful gases, thus enhancing the longevity and performance of the system.

Deaerator meaning with examples

  • In a power plant, the deaerator preheats the boiler feedwater, reducing thermal stress on the boiler and improving overall efficiency. Its function is to prevent oxygen from corroding the steel boiler tubes. Proper deaeration is vital for the economic and safe operation of the entire power plant.
  • The large industrial plant implemented a deaerator to remove dissolved gases from the water used in its steam generation processes. This prevented premature failure of the equipment.
  • During the water treatment process, the deaerator is employed to prepare the water for usage in the system.
  • The engineering team ensured the deaerator was functioning optimally to protect the heat exchanger from corrosion, demonstrating proactive maintenance.
  • A malfunction in the deaerator can lead to severe damage to the boiler due to oxygen ingress, highlighting the deaerator's importance.

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