Method for Detecting the Inside of Coke Drum Using Acoustic Signals

A distance and acoustic intensity reverberation (DAIR) physical model is developed that can be successfully applied to the signal processing of the hydraulic decoking process online monitoring. In this model, the transmission characteristics of acoustic signals generated by a moving sound source in a dynamic confined space are first analyzed using data recursion and correction according to the coordinate continuity in adjacent area and adjacent time. The results show that the nondetection zone of acoustic signals generated directly by the impact of water is eliminated, and the surface distribution of coke in the drum can be mapped in real time.

[1]  Zahra Hashemiyan,et al.  Modelling and Numerical Simulations of In-Air Reverberation Images for Fault Detection in Medical Ultrasonic Transducers: A Feasibility Study , 2015, J. Sensors.

[2]  Dae-Hwan Kim,et al.  Experimental modal analysis and vibration monitoring of cutting tool support structure , 1995 .

[3]  K. Cooper,et al.  Miniature all-silica fiber optic pressure and acoustic sensors. , 2005, Optics letters.

[4]  Qingxu Yu,et al.  Polymer diaphragm based sensitive fiber optic Fabry-Perot acoustic sensor , 2010 .

[5]  N. Xiang,et al.  Visualizations of sound energy across coupled rooms using a diffusion equation model. , 2008, The Journal of the Acoustical Society of America.

[6]  Aniruddha B. Pandit,et al.  Petroleum residue upgrading via delayed coking: A review , 2007 .

[7]  Tao Ji,et al.  Application of optical fiber sensing technology in the hydraulic decoking monitoring system , 2013, Other Conferences.

[8]  Qian Guo,et al.  Study on high temperature Fabry–Perot fiber acoustic sensor with temperature self-compensation , 2015 .

[9]  Yusuke Hioka,et al.  Effect of adding artificial reverberation to speech-like masking sound , 2016 .

[10]  J. Hedrick,et al.  Organocatalytic ring-opening polymerization. , 2007, Chemical reviews.

[11]  Hu Xiu-liang.  Design and research on hydraulic coke cutting monitoring system , 2010 .

[12]  Mirosław Meissner,et al.  Acoustics of small rectangular rooms: Analytical and numerical determination of reverberation parameters , 2017 .

[13]  Xingxuan Wang.  Pass Balancing Switching Control of a Four-passes Furnace System , 2011 .

[14]  Andrea Prato,et al.  Reverberation time measurements in non-diffuse acoustic field by the modal reverberation time , 2016 .

[15]  Hisham A. H. Al-Khazali,et al.  Computer simulation to investigate system identification and vibration monitoring in rotor dynamic analysis , 2011 .