Application of infrared temperature detection technology in furnace temperature field measurement

WANG Ran; ZHANG Zhigang; SUN Baomin; XING Hongtao; WANG Zepu; LIU Yaokai

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Application of infrared temperature detection technology in furnace temperature field measurement

更新时间：2025-09-28

- Application of infrared temperature detection technology in furnace temperature field measurement
- Thermal Power Generation Vol. 46, Issue 6, Pages: 136-140(2017)
- 作者机构：
  
  1. 中国大唐集团科学技术研究院
  2. 华北电力大学能源动力与机械工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN219;TM621.2
- Published：2017
- 稿件说明：
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WANG Ran, ZHANG Zhigang, SUN Baomin, et al. Application of infrared temperature detection technology in furnace temperature field measurement[J]. Thermal power generation, 2017, 46(6): 136-140.
DOI：

WANG Ran, ZHANG Zhigang, SUN Baomin, et al. Application of infrared temperature detection technology in furnace temperature field measurement[J]. Thermal power generation, 2017, 46(6): 136-140. DOI：

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 real-time monitoring of the temperature field in furnace of utility boilers

a mathematical model for furnace temperature field reconstruction was established based on infrared temperature measurement. The least squares QR-decomposition(LSQR) algorithm was applied to solve this model. The singlepeak and double-peak temperature field models were simulated

and high quality temperature field images could be obtained by both the temperature field models. Temperature measurement experiment was carried out on a domestic 300 MW unit boiler by using the infrared temperature measurement technique. The 2D temperature field of a section in the furnace was reconstructed and the results reflect temperature distribution accurately. Both the simulation results and the experimental results indicate that the infrared temperature measurement technique can be used to reconstruct 2D temperature field and realize real-time monitoring of temperature field in furnace.

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