Guided wave acoustic monitoring of corrosion in recovery boiler tubing
Abstract
Corrosion of tubing used in black-liquor recovery boilers is a major concern in all pulp and paper mills. Extensive corrosion in recovery boiler tubes can result in a significant safety and environmental hazard. Considerable plant resources are expended to inspect recovery boiler tubing. Currently, visual and ultrasonic inspections are primarily used during the annual maintenance shutdown to monitor corrosion rates and cracking of tubing. This Department of Energy, Office of Industrial Technologies project is developing guided acoustic waves for use on recovery boiler tubing. The feature of this acoustic technique is its cost-effectiveness in inspecting long lengths of tubes from a single inspection point. A piezoelectric or electromagnetic transducer induces guided waves into the tubes. The transducer detects fireside defects from the coldside or fireside of the tube. Cracking and thinning on recovery boiler tubes have been detected with this technique in both laboratory and field applications. This technique appears very promising for recovery boiler tube application, potentially expediting annual inspection of tube integrity.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 15013663
- Report Number(s):
- UCRL-CONF-202538
TRN: US200803%%1089
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Conference
- Resource Relation:
- Conference: Presented at: TAPPI Spring Technical Conference, Atlanta, GA, United States, May 03 - May 05, 2004
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; ACOUSTIC MONITORING; ACOUSTICS; BOILERS; CORROSION; DEFECTS; MAINTENANCE; MONITORS; SAFETY; SHUTDOWN; TRANSDUCERS
Citation Formats
Quarry, M J, and Chinn, D J. Guided wave acoustic monitoring of corrosion in recovery boiler tubing. United States: N. p., 2004.
Web.
Quarry, M J, & Chinn, D J. Guided wave acoustic monitoring of corrosion in recovery boiler tubing. United States.
Quarry, M J, and Chinn, D J. Thu .
"Guided wave acoustic monitoring of corrosion in recovery boiler tubing". United States. https://www.osti.gov/servlets/purl/15013663.
@article{osti_15013663,
title = {Guided wave acoustic monitoring of corrosion in recovery boiler tubing},
author = {Quarry, M J and Chinn, D J},
abstractNote = {Corrosion of tubing used in black-liquor recovery boilers is a major concern in all pulp and paper mills. Extensive corrosion in recovery boiler tubes can result in a significant safety and environmental hazard. Considerable plant resources are expended to inspect recovery boiler tubing. Currently, visual and ultrasonic inspections are primarily used during the annual maintenance shutdown to monitor corrosion rates and cracking of tubing. This Department of Energy, Office of Industrial Technologies project is developing guided acoustic waves for use on recovery boiler tubing. The feature of this acoustic technique is its cost-effectiveness in inspecting long lengths of tubes from a single inspection point. A piezoelectric or electromagnetic transducer induces guided waves into the tubes. The transducer detects fireside defects from the coldside or fireside of the tube. Cracking and thinning on recovery boiler tubes have been detected with this technique in both laboratory and field applications. This technique appears very promising for recovery boiler tube application, potentially expediting annual inspection of tube integrity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {2}
}