A Flexural Mode Tuning Technique for Membraned 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 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 cold side or fireside of the tube. Cracking and thinning on recovery boiler tubes have been detected with this technique in both laboratory and field applications.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 862386
- Report Number(s):
- UCRL-CONF-210739
TRN: US200602%%497
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Conference
- Resource Relation:
- Conference: Presented at: Third US-Japan Symposium on NDE, Makena, HI, United States, Jun 20 - Jun 24, 2005
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; ACOUSTICS; BOILERS; CORROSION; DEFECTS; MAINTENANCE; MONITORS; SAFETY; SHUTDOWN; TRANSDUCERS; TUNING; ULTRASONIC WAVES
Citation Formats
Quarry, M J, Chinn, D J, and Rose, J L. A Flexural Mode Tuning Technique for Membraned Boiler Tubing. United States: N. p., 2005.
Web.
Quarry, M J, Chinn, D J, & Rose, J L. A Flexural Mode Tuning Technique for Membraned Boiler Tubing. United States.
Quarry, M J, Chinn, D J, and Rose, J L. Mon .
"A Flexural Mode Tuning Technique for Membraned Boiler Tubing". United States. https://www.osti.gov/servlets/purl/862386.
@article{osti_862386,
title = {A Flexural Mode Tuning Technique for Membraned Boiler Tubing},
author = {Quarry, M J and Chinn, D J and Rose, J L},
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 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 cold side or fireside of the tube. Cracking and thinning on recovery boiler tubes have been detected with this technique in both laboratory and field applications.},
doi = {},
url = {https://www.osti.gov/biblio/862386},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {3}
}