PHOTO #4 Removed tube sample
NOTE: Failure in tube
PHOTO #4
Bottom Half - Note Minimal Corrosion
Liquid
PHOTO #5 Severe groove depth adjacent
to edge of support
PHOTO #6
PHOTO #7
PHOTO #8
PHOTO #5
Top Half - Note Corrosion
PHOTO #6
Bottom Half - Note Minimal Corrosion
PHOTO #7 Cross Section
Tube split to show top & bottom
-
Left & right sides show minimal corrosion. Liquid covered.
-
Inner left & right (top circumference of tube) show heavy corrosion. Liquid/Vapor.
PHOTO #8
Top Half - Note Corrosion
Unexpected Tube Failure in
HDS Stripper OVHD Air Cooler
chronicle companion images
PHOTO #2
NOTE: Close up of Failure
PHOTO #1
Top half of tube looking at failure
PHOTO #3
Top Half of Tubing - Note Corrosion
Liquid/Vapor
Failure Analysis of:
Process Coolers 30E-1a & 30E-1b
chronicle companion images
IMAGE #2
View of failure with significant tube sheet,
seal welds and tube damage
NOTE: Initial Failure Location
IMAGE #3
View of Failure
IMAGE #1
HX Roll
IMAGE #4
View of the Seal Welds Start/Stops
Pin Hole
Start/Stop Weld Crater
IMAGE #5
View of Circumferential Striations in the Roll Areas
IMAGE #6
Close-up View of Pin Holes within the Seal Welds
IMAGE #7
Close-up View of Pin Holes
within the Seal Welds
Pin Hole
IMAGE #8
Physical Measurements Chart
IMAGE #9
Physical Measurements Tube Sheet Map
Additional Photos
