Inspection of Water Boiler Tubes Using APRIS
THE CHALLENGE
A client in the power sector wanted to validate a new technology that would increase their efficiency in tube inspection. Four cut boiler tubes were prepared for an APRIS trial as a test.
Location: Indonesia
Configuration of Tubes: Water Boiler Tubes
Tube Specification of Sample Tubes
Date of Inspection: 6 Sept 2021
Date of Report Issued: 6 Sept 2021
Total No. of Tubes Inspected: 4
Tube Outer Diameter: 51mm
Tube Thickness: 6mm
Tube Length: 2m
Tube Specification of Water Boiler Tubes
Date of Inspection: 8 Sept 2021
Date of Report Issued: 9 Sept 2021
Total No. of Tubes Inspected: 255
Tube Outer Diameter: 51mm
Tube Thickness: 6mm
Tube Length: 25m
THE SOLUTION
Acoustic Pulse Reflectometry Technology Inspection System (APRIS) can identify holes, blockages, and wall loss in a tube regardless of tube configuration and material.
It is quick as it takes only 10 seconds per tube for measurement and can give the location and size of the defects.
APRIS can measure tubes up to 4 inches.
THE RESULT ON SAMPLE TUBES
After measurements were taken by APRIS on the sample tubes, a report was submitted within an hour.
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One boiler tube sample was found with a 5mm hole at 0.85m from the opening of the tube.
Another sample tube was found with blockage and two sample tubes with wall loss as shown in Table 1.
THE RESULT ON WATER BOILER TUBES
After reading the insightful report of APRIS, the client made a quick decision to use APRIS to immediately screen the water boiler tubes.
The APRIS software generates insightful information on the condition of the tubes using professional formats such as charts, tables, and images.
CONCLUSION
The advantages of APRIS were demonstrated by thefollowing:
APRIS was able to quickly assess the condition of the tubes in a fraction of the time as compared to other technologies.
APRIS was able to detect holes, blockages and wall loss.
APRIS indicated the size and location of the defects.
APRIS is recommended as the initial non-destructive testing method for applications such as condensers, reboilers and heat exchangers, which have defects originating from the inner diameter of the tubes.
APRIS was proven to be useful in quickly detecting inner diameter surface defects.
Website: www.ndt.talcyon.com/apris Email: [email protected]