 The
TS-2000 uses a contoured scanner that is customized for the specific tube
OD. The scanner is manually moved along the tube wall to scan for defects
inside the tube, primarily on the fire side.
Typical defects found on these waterwall tubes are hydrogen damage, caustic
gouging, phosphate attack and oxygen pitting.
Approximately 2,000 to 2,500 linear feet of waterwall tubing can be scanned
with one system in a ten hour shift (depending upon scaffolding, access,
and tube preparation.) The tubes are not required to be cleaned to
the level necessary for ultrasonic thickness testing.  A modest uniform
scale will produce excellent results. Non-uniform scale is undesirable
as it creates scanner lift-off.
The TS-2000 uses no couplant and can detect small pits that can be difficult
to identify with ultrasonics. Tube sizes tested range from ½” OD to 4”
OD. A report of results contains color coded waterwall maps for easy assessment. |
