烟气覆盖表面红外温度测量的实验分析

发布时间：2018-06-27 16:16

本文选题：红外测温 + 源项多流法　；参考：《北京航空航天大学学报》2017年02期

【摘要】：为了研究辐射参与性烟气对红外测温法金属壁面温度测量的影响,首先根据实验中红外探测器测量得到的表面温度分布的特点,建立了一维表面红外测温模型;然后根据红外热成像测温原理及辐射传输理论,利用源项多流法分析模型计算了烟气覆盖表面在不同烟气厚度和不同表面温度下红外探测器获得的温度;最后利用马弗炉模拟不同温度的表面,振动筛模拟不同浓度和厚度的烟气环境,在实验室条件下设计搭建了模拟烟气覆盖表面的红外测温实验系统,实验验证了源项多流法分析模型,实验测量得到的温度与分析模型预测的温度吻合较好,并提出了利用反演方法修正红外测温的设想。
[Abstract]:In order to study the effect of radiation participation smoke on metal wall temperature measurement by infrared thermometry, a one-dimensional surface infrared temperature measurement model was established according to the characteristics of surface temperature distribution measured by infrared detector in the experiment. Then according to the principle of infrared thermal imaging temperature measurement and radiation transfer theory, the temperature obtained by infrared detector under different smoke thickness and surface temperature is calculated by using the multi-flow analysis model of source term. Finally, the surface of different temperature is simulated by Maverick furnace, the smoke environment of different concentration and thickness is simulated by vibrating screen, and the infrared temperature measuring experiment system is designed and built under the laboratory condition. The experimental results show that the temperature measured by the experimental method is in good agreement with that predicted by the analytical model, and the idea of correcting the infrared temperature measurement by inversion method is put forward.
【作者单位】：广东电网有限责任公司电力科学研究院;东南大学能源热转换及其过程测控教育部重点实验室;
【基金】：中国南方电网有限责任公司科技项目(K-GD2013-0497)~~
【分类号】：TH811;TN219

【相似文献】