chronicle companion images
Turbine Failure in Recuperative Heater "A & B"
IMAGE #1 Tubesheet Map
IMAGE #2
Side View of Exchanger & Corrosion Location
Detubing Baffle
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IMAGE #3
3D images of the exchanger representing views
illustrative of the corrosion issues
PHOTO #1
Discoloration of the Tubing in the Affected Zone
(Top 2 Tubes)
PHOTO #2
Close up of failure site located at the 2nd baffle the north tubesheet. The round shape of the through wall failure is indicative of a corrosive force.
Hole which was aligned at the top edge of the tube axis.
(Note: Acid corrosion outline adjacent to the hole.)
PHOTO #3
Close up of failure site located
at the 1st baffle at the north tubesheet.
PHOTO #4
Hole which was Aligned at the Top Edge of the Tube Axis
PHOTO #5
Another Example of hole which was aligned at the top edge of the tube axis.
(Note: Acid corrosion outline adjacent to the hole.)
PHOTO #6
Note: Striations formed emanating from the hole indicative of acidic process stream.
Additional Views
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