3-D TEMPERATURE MEASUREMENT IN A WALK BEAM FURNACE BASED ON RADIATION IMAGE PROCESSING TECHNIQUE

摘要：

Though the various optical methods of temperature measurement have been represented, until now, few on-line and in situ measurements in large-scale, high-temperature industrial furnace have been reported. With the assumption of gray radiation, multiple color image detectors were used to capture the approximately red, green and blue monochromatic radiation intensity images in the visual wavelengths range. By using a novel visible radiation image processing technique, the 3-D temperature visualized distributions in a walk beam furnace were experimentally reconstruted. The burner combustion regulating test confirmed that the system could accurately and intuitively display the temperature change inside the furnace. The errors between the temperature measured by thermocouples and the present system were less than 5％. On-line monitoring results demonstrated that the 3-D temperature visualization measurement system could provide full-scale temperature distributions in the furnace, and more accurately control the temperature for heating billet. Furthermore by directly monitoring the surface temperature of billet, it makes the surface of billet heating more uniformly, resulting in the smaller difference in temperature between surface and center of billet.

关键词： 3-D temperature measurement billet temperature radiation image processing on-line monitoring industrial furnace

作者: Qiang CHENG Huaichun ZHOU Chun LOU Zhiwei JIANG Zhifeng HUANG Yonglin YU Dexiu HUANG

作者单位: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, P.R.C Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan,

会议类型: 国际会议

会议名称: 第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)

会议地点: 武汉

会议语种:英文

页码: 932-938

在线出版日期: 2007-12-01（万方平台首次上网日期，不代表论文的发表时间）