Table of Contents
What are deaerators? ............................................................................................................... 1
The Deaeration Process............................................................................................................ 1
Why remove oxygen and carbon dioxide? ............................................................................. 2
What is corrosion? ..................................................................................................................... 2
Deaerator System ...................................................................................................................... 3
Deaerator Components ............................................................................................................ 5
How Deaerators Work .............................................................................................................. 6
How Tray Deaerators Work ...................................................................................................... 7
Spray Scrubber Deaerator ....................................................................................................... 9
How Spray Scrubber Deaerators Work .................................................................................. 9
Design Considerations ............................................................................................................ 10
Steam System Comparison .................................................................................................... 10
Deaerator Entry Point ......................................................................................................... 10
Large Condensate Returns ................................................................................................. 10
Feedwater Tank Size ............................................................................................................ 11
Feedwater Tank Location ................................................................................................... 11
Maintenance............................................................................................................................. 12