Automated Ultrasonic (UT)
Tube Corrosion Mapping
Envirocoustics
provides complete services for tube inspection of heat exchangers, boilers
and coolers. Apart from the EC and RFT methods Envirocoustics also
provides automated ultrasonic inspections.
With the use of
completely automated UT systems, designed for rapid measurements, C-Scan
type displays are provided from small or medium diameter pipes.
A
specially retrofitted probe is inserted inside the tube, together with
water supply (as coupling material). The ultrasound is emitted vertical
(for corrosion inspection), or at an angle (from 45° to 70°, for the
detection of imperfections as microcracks).
(Download
Brochure,
209Kb)

UT probe for tube
inspection

Tube mapping (in red
are the areas with reduced thickness)
All
measurements acquired are recorded and filed inside the system, separately
for each tube. The final report contains analyzed data in colored maps or
in Excel worksheets. The report contains also the highest, the lowest and
the average thickness values for each tube wall.
Advantages
of the method:
-
Inspection speed
up to 100mm per second, depending on the desirable resolution.
-
The probe for data
recording is inserted completely automated with a 300mm per second speed
depending on the required measurement precision.
-
Complete 2 or 3
axes recording (C-Scan and B-Scan) with capability to export the data on
Excel worksheet for further analysis.
-
Inspects tubes
with diameters from 12mm up to 76mm.
-
Thickness and
corrosion mapping and/or inspection for other types of imperfections.

Envirocoustics
also provides Eddy Currents tube
inspection services.