Title :
Research on the Detection and Location of Sound Emission Caused by Tube Leakage in Boilers
Author :
Genshan Jiang ; Lin Wang
Author_Institution :
Dept. of Math. & Phys., North China Electr. Power Univ., Baoding, China
Abstract :
By examining the shortcomings of the current condition monitoring system for boiler pipeline leakage, a new method is presented in this paper to accurately identify the leakage location using multi-microphones array for passive source localization. A model of 660MW boiler is taken as an example for simulating the localization of various positions of the leakage source in the furnace of the boiler´s body. This paper also discusses the effect of sound propagation through the combustion temperature-field inside the boiler and the reverberation in the boiler enclosure on the leak-age localization, and subsequent amendment in the localization techniques. It is shown that the combustion temperature gradient field clearly influences localization of the leakage.
Keywords :
acoustic applications; acoustic signal detection; array signal processing; boilers; condition monitoring; leak detection; microphone arrays; pipelines; boiler enclosure; boiler pipeline leakage; boiler tube leakage; combustion temperature field; condition monitoring; leakage localization; multimicrophones array; passive source localization; power 660 MW; sound emission detection; sound emission location; sound propagation; Arrays; Boilers; Electron tubes; Microphones; Noise measurement; Reverberation;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-0545-8
DOI :
10.1109/APPEEC.2012.6307413