红外测温技术在炉膛温度场检测中的应用

发布时间：2018-05-06 16:45

本文选题：电站锅炉 + 炉膛　；参考：《热力发电》2017年06期

【摘要】：为了实现电站锅炉炉膛温度场在线监测,基于红外测温的基本原理建立了炉膛温度场重建的数学模型;采用LSQR(Least Squares QR-Decomposition)算法求解温度场重建模型,对炉膛火焰分布的单峰模型和双峰模型进行了仿真重建,针对两种不同的温度场模型均能得到精度较高的温度场分布图;采用红外测温技术在国内某300 MW机组锅炉上进行了测温试验,重建了炉膛某截面温度场,试验结果准确反映了炉膛温度场的分布状况。仿真和试验结果表明:红外测温技术可以用于重建二维平面温度场,实现炉膛温度场实时在线监测。
[Abstract]:In order to realize on-line monitoring of furnace temperature field in power station boiler, the mathematical model of furnace temperature field reconstruction is established based on the basic principle of infrared temperature measurement, and the temperature field reconstruction model is solved by LSQR(Least Squares QR-Decompositionalgorithm. The single-peak model and two-peak model of furnace flame distribution are simulated and reconstructed. The temperature field distribution map with high accuracy can be obtained by two different temperature field models. The temperature measurement test was carried out on a 300 MW boiler in China by using infrared temperature measurement technology, and the temperature field of a section of the furnace was reconstructed. The results of the test accurately reflected the distribution of the temperature field in the furnace. The simulation and experimental results show that the infrared temperature measurement technique can be used to reconstruct two-dimensional plane temperature field and realize real-time on-line monitoring of furnace temperature field.
【作者单位】：中国大唐集团科学技术研究院;华北电力大学能源动力与机械工程学院;
【基金】：中国大唐集团多污染物协同脱除与均衡控制关键技术研究与示范项目(CDT1-17-02)~~
【分类号】：TM621.2;TN219

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