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|Laser scanners profile the interiors of tanks, drums and vessels|
|Acuity customer uses laser line scanner to collect spiral scan profiles of coke drums|
|Home > Products > Line Scanner > Scanning applications > Coke drum inspection|
Coke Drum Vessel Inspection
Quest Tru-Tec Services uses the AccuRange line scanner to inspect the condition of coke drum vessels. Bulges and cracks in coke drum walls have been a constant problem for many years. Before laser measurement technology, bulge detection and measurement required internal scaffolding and personnel entry into the drum; Quest Tru-Tec's Coke Drum Integrity Assessment program combines a laser mapping technique with a visual inspection via video camera to detect defects in coke drum shells.
A laser distance measurement tool is mounted to a tensioned
cable and lowered into the drum. Measurements are taken from the top flange
to the bottom cone area. The tensioned cable provides a vertical reference
for each scan; therefore, repeatability and comparison of subsequent scans
can be used to determine bulge growth rate. Baseline drum scans will provide
plant personnel with data that can be used for comparison and determination
of bulge growth rates with future scans.
Bulges and defects in coke drums is a major engineering challenge. A white paper on the importance of coke drum inspection can explains the popular techniques employed and the economic benefits of using these techniques.
3D scanning using lasers from Acuity
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|© Copyright 2009, Schmitt
Measurement Systems, Inc.
Makers of precision surface measurement and alignment products