An immersion pulse-echo
technique is used. The ultrasonic transducer is housed
in a turbine head with a rotating 45deg mirror. The
turbine assembly is centered in the tube axis. The
pulses are emitted parallel to the tube axis and are
reflected by the 45deg mirror so that they are directed radially into the tube wall.
The reflections
from both inner and outer tube wall follow the same path to the
transducer. The time interval between the first wall echo
(front) and second wall echo, (back) is the measure of wall
thickness. As the mirror rotates, the ultrasonic beam sweeps the
entire circumference of the tube wall. Turbine speed and PRF are
adjusted to allow inspection pulls up to 5m per minute.
Features
•
Ultrasonic
system for internal inspection of small diameter tubing in
Petrochemical plants, paper mills, utility plants.
•
Uses rotating
pulse echo technique to scan 100% of tube wall area.
•
Data presented
in B & interactive C scan displays with tube sheet mapping
software.
•
Tube range
from 8.6mm internal diameter in both ferrous & non ferrous
materials.
•
used for
boiler tubes, heat exchangers, air coolers, feed water
heaters, reboilers, steam chests and condensers.
IRIS Software
•
IRIS Ultima displays data
in both B & C scan using Windows viewer program.
•
Data files
are color thickness coded and are interactive.
•
Ultima also has color
coded tube data sheets and tube sheet map.
Products
