基于辐射图像处理的壁温分布监测实验研究  

Experimental research on monitoring the wall temperature distribution by radiation image processing

作　　者：张向宇[1] 杜建民 杜智华[1] 马山海 吕田 方顺利[1] ZHANG Xiangyu;DU Jianmin;DU Zhihua;MA Shanhai;LYU Tian;FANG Shunli(Xi’an Thermal Power Research Institute Co.,Ltd.&National Engineering Research Center of Clean Coal Combustion,Xi’an 710054,China;Huaneng Lanzhou Thermal Power CO.,Ltd.,Lanzhou 730100,China)

机构地区：[1]西安热工研究院有限公司电站锅炉煤清洁燃烧国家工程研究中心,陕西西安710054 [2]华能兰州热电有限责任公司,甘肃兰州730100

出　　处：《热力发电》2023年第11期180-185,共6页Thermal Power Generation

基　　金：中国华能集团有限公司总部科技项目(HNKJ22-H34,HNKJ21-HF304)。

摘　　要：大型工业炉窑燃烧监测可简化为封闭空腔体系内的辐射换热问题,精确定量其边界辐射特性是开展后续辐射逆问题研究的基础,而这需要解决壁面辐射与空间辐射相互耦合的难题。通过引入基于蒙特卡洛的DRESOR法来精确求解封闭空腔内部辐射传热方程,解耦了计算边界处检测能量中分别来自空间辐射和壁面辐射的份额,并比较了温度分布和辐射物性参数对壁面辐射贡献份额的影响,最后实验验证了利用边界检测辐射信息反演壁面温度的可行性。本研究将为探索工业炉窑壁面热物理量场检测方法提供参考。Combustion monitoring in large industrial furnace can be simplified to a radiation heat transfer problem within the enclosed cavity system,and precise quantification of its boundary radiation characteristic is the basis to carry out follow-up studyon the radiation inverse problem,but the coupled problem of wall radiation and media radiation need to be solved.A Monte Carlo priciple was involved to solve the radiation heat transfer equation in the enclosed cavity,and to decouple the shares of wall radiation and media radiation in the boundary detection information.The influence of temperature distribution and radiation properties on the share of wall radiation were discussed,at last the experiment verifies the feasibility of using the radiation information of boundary detection to retrieve the wall source term.This study will provide a reference to the exploration of physical field detection method of wall surface in industrial furnace.

关 键 词：工业炉窑 燃烧检测 辐射 壁面 蒙特卡洛 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TK221[自动化与计算机技术—计算机科学与技术]