US 12,241,790 B2
Visual monitoring method for cross-section temperature fields and radiation characteristics of boiler furnaces by combining radiation images and spectra
Huaichun Zhou, Jiangsu (CN); Kuangyu Li, Jiangsu (CN); Bo Yu, Jiangsu (CN); Xianyong Peng, Jiangsu (CN); Han Guo, Jiangsu (CN); Kun Yang, Jiangsu (CN); and Zhuoran Jing, Jiangsu (CN)
Assigned to China University of Mining and Technology, Jiangsu (CN)
Appl. No. 18/036,396
Filed by China University of Mining and Technology, Jiangsu (CN)
PCT Filed Nov. 17, 2022, PCT No. PCT/CN2022/132469
§ 371(c)(1), (2) Date May 10, 2023,
PCT Pub. No. WO2024/098447, PCT Pub. Date May 16, 2024.
Claims priority of application No. 202211422723.1 (CN), filed on Nov. 15, 2022.
Prior Publication US 2024/0337538 A1, Oct. 10, 2024
Int. Cl. G01J 5/07 (2022.01); G01J 5/00 (2022.01); G01J 5/08 (2022.01); G01J 5/0802 (2022.01); G01J 5/10 (2006.01); G01J 5/48 (2022.01); G01J 5/60 (2006.01); G01J 5/80 (2022.01)
CPC G01J 5/485 (2022.01) [G01J 5/0044 (2013.01); G01J 5/0802 (2022.01); G01J 5/0887 (2013.01); G01J 5/10 (2013.01); G01J 5/602 (2013.01); G01J 5/802 (2022.01); G01J 5/804 (2022.01); G01J 2005/0074 (2013.01); G01J 2005/0077 (2013.01); G01J 2005/604 (2013.01); G01J 2005/607 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A visual monitoring method for cross-section temperature fields and radiation characteristics of boiler furnaces by combining radiation images and spectra, comprising:
synchronously acquiring flame radiation images and spectra in a furnace respectively by image detectors and a spectrometer;
correcting a temperature of a flame image according to an emissivity ratio obtained by an analysis on flame radiation spectra, and according to a reconstruction algorithm based on a radiation intensity imaging model; and
reconstructing simultaneously a temperature distribution and an absorption coefficient distribution in the furnace.