Measurement of Dense-Phase Bed Height in CFB Boiler Based on Flame Image Processing Technique

Author

Luo, Zi-Xue ; Wang, Dun-Dun ; Duan Lian ; Zhou, Huai-Chun

Author_Institution

State Key Lab. of Coal Combustion, Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

1

fYear

2009

fDate

11-12 April 2009

Firstpage

237

Lastpage

240

Abstract

This paper proposes a method to measure the dense-phase bed height by edge-detection of Charge Coupled Device based on flame image processing technique in Circulated Fluidized Bed (CFB) boiler. The detection system was installed in a 480t/h CFB boiler, image processing model has been built,and in-situ experiment was carried out. Real-time bed height is reliable and meets the bed pressure drop exactly in furnace. The monitoring equipment, the flame image processing theory of recognition algorithm, and the choice of the threshold value of gray, are introduced in the paper. This image processing technique can provide CFB boiler with the safe, economic and clean operation in practical industry application.

Keywords

boilers; charge-coupled devices; edge detection; flames; fluidised beds; image processing; CFB boiler; charge coupled device; circulated fluidized bed boiler; dense-phase bed height; edge-detection; flame image processing technique; Boilers; Charge measurement; Charge-coupled image sensors; Current measurement; Fires; Fluidization; Furnaces; Image edge detection; Image processing; Monitoring; CFB boiler; dense-phase bed height; detection component; flame image processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Measuring Technology and Mechatronics Automation, 2009. ICMTMA '09. International Conference on

Conference_Location

Zhangjiajie, Hunan

Print_ISBN

978-0-7695-3583-8

Type

conf

DOI

10.1109/ICMTMA.2009.397

Filename

5202956