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Surface Condenser - Deaerator Problems

chronicle companion images

Chron32-1b.png
Chron32-2b.png
IMAGE #3
Heavy deposit layer – Calcium deposits
Chron32-3b.png
Plugging of the deaerator has the following effects on operation:
​

  • Poor flow characteristics throughout the bundle matrix

  • Loss of vacuum

  • Overload of secondary ejector exchangers

  • Poor removal of non-condensable gasses

  • Accelerated corrosion due to poor non-condensable removal

  • Provide inadequate boiler feed pump suction head

  • Disrupt flow charactistics throughout the condenser

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IMAGE #1&2
View of bottom half of surface Condenser
with both deaerators fully plugged (Tapered plugs)
IMAGE #4
View of tube sheet map with associated corrosion depths
Chron32-4a.png
INSPECTION PHOTOS

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