基于火焰图像分析的深度调峰工况下对冲锅炉炉膛横断面温度场检测研究

尹晓东; 陈志恒; 张越; 刘帅; 杨杰明; 赵宇琪; 闫伟杰

doi:10.19666/j.rlfd.202510075

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基于火焰图像分析的深度调峰工况下对冲锅炉炉膛横断面温度场检测研究

发电技术论坛 | 更新时间：2026-06-12

- 基于火焰图像分析的深度调峰工况下对冲锅炉炉膛横断面温度场检测研究
- 基于火焰图像分析的深度调峰工况下对冲锅炉炉膛横断面温度场检测研究
- 热力发电 2026年55卷第4期页码：116-126
- 作者机构：
  
  1. 国家电投河南电力有限公司
  2. 国家电投集团河南电力有限公司技术信息中心
  3. 南京理工大学能源与动力工程学院
  4. 国家电投集团河南电力有限公司开封发电分公司
- 作者简介：
- 基金信息：
  
  国家自然科学基金面上项目(52176144)~~
- DOI：10.19666/j.rlfd.202510075
  中图分类号： TM621.2
- 纸质出版：2026
- 稿件说明：
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[1]尹晓东,陈志恒,张越,等.基于火焰图像分析的深度调峰工况下对冲锅炉炉膛横断面温度场检测研究[J].热力发电,2026,55(04):116-126.
[1]尹晓东,陈志恒,张越,等.基于火焰图像分析的深度调峰工况下对冲锅炉炉膛横断面温度场检测研究[J].热力发电,2026,55(04):116-126. DOI： 10.19666/j.rlfd.202510075.

DOI：10.19666/j.rlfd.202510075.

摘要

【目的】在“双碳”战略背景下，燃煤电站锅炉的高效稳定运行对电网调峰至关重要，而温度场监测是保障其安全运行的核心环节。针对深度调峰工况下燃烧稳定性下降、负荷波动剧烈及温度场重构等挑战，聚焦对冲燃烧锅炉的横断面温度场精确检测，提出一种融合逆蒙特卡洛法与Tikhonov正则化算法的双波段炉膛温度场重建系统。【方法】该系统创新性引入无线式探测器，突破传统有线设备在复杂锅炉空间中布线困难的限制，为深度调峰工况下的实时监测提供硬件支撑。研究过程中基于630 MW机组对冲燃烧锅炉的多负荷工况（25%、33%、66%负荷）实炉试验，揭示了深度调峰与常规运行下温度场的显著差异：【结果】主燃区低负荷时高温中心偏离几何中心（左墙及前墙方向），高负荷则趋于均匀分布；燃尽区高温区集中于前后墙近壁区，低负荷时前后墙高温区面积差异显著，燃烧均匀性差。同时，消光系数分析进一步表明，燃尽区（0.91～0.94）显著高于主燃区（0.26～0.51），验证了深度调峰下火焰辐射特性与常规运行的差异。【结论】通过算法优化、硬件创新与对冲燃烧锅炉结构特性的协同分析，构建了高精度温度场监测系统，为深度调峰工况下的燃烧状态诊断、运行优化及安全调控提供了关键数据支撑与工程化路径，对燃煤锅炉深度调峰运行具有重要实践价值。

Abstract

[Objective] Under the background of China's “dual-carbon” strategy

the efficient and stable operation of coal-fired power station boilers is crucial for peak shaving of the power grid

and temperature field monitoring is one of the keys to ensuring the safe and efficient operation of boilers. Addressing challenges such as decreased combustion stability

severe load fluctuations

and temperature field reconstruction under deep peak shaving conditions

this study focuses on the precise detection of cross-sectional temperature fields in opposed-fired boilers. A dual-band furnace temperature field reconstruction system that integrates the inverse Monte Carlo method with the Tikhonov regularization algorithm is proposed. [Methods] This system innovatively incorporates wireless detectors

breaking through the limitations of conventional wired devices that are difficult to route in complex boiler spaces

and providing hardware support for real-time monitoring under deep peak shaving conditions. On-site furnace tests conducted under multi-load conditions(25%

33%

and 66% load) of a 630 MW opposed-fired boiler revealed that there were significant differences in temperature fields between deep peak shaving and conventional operation. [Results] At low loads in the main combustion zone

the high-temperature center deviates from the geometric center(towards the left and front walls)

while at high loads

it tends to be evenly distributed. The hightemperature zone in the burnout zone is concentrated near the walls of the front and rear sections. At low loads

there is a significant difference in the area of the high-temperature zones on the front and rear walls

indicating poor combustion uniformity. Meanwhile

extinction coefficient analysis further indicates that the burnout zone(0.91～0.94) is significantly higher than the main combustion zone(0.26～0.51)

verifying the differences in flame radiation characteristics between deep peak shaving and conventional operation. [Conclusion] Through collaborative analysis of algorithm optimization

hardware innovation

and the structural characteristics of opposedfired boilers

a high-precision temperature field monitoring system has been constructed

providing key data support and engineering pathways for combustion state diagnosis

operation optimization

and safety regulation under deep peak shaving conditions. This has important practical value for the deep peak shaving operation of coal-fired boilers.

关键词

Keywords

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