文档介绍：华中科技大学
硕士学位论文
基于燃烧监测的W型火焰锅炉简化模型及燃烧优化
姓名:汪飞
申请学位级别:硕士
专业:热能工程
指导教师:罗自学;周怀春
2011-01-11
华中科技大学硕士学位论文
摘要
W 型火焰锅炉调节复杂,炉内的流场、温度分布不均,燃烬度差、过再热器易超
温等,在 W 型锅炉上开展基于燃烧检测的建模和引入辐射能信号的燃烧优化控制研究
有现实意义。
选取燃料量、汽轮机调门开度、减温水量、给水量为模型输入,主蒸汽压力、发
电机输出功率、一级过热蒸汽温度、汽包水位为模型输出,建立以辐射能信号为中间
量的锅炉简化模型。通过现场的运行数据对模型仿真输出验证,表明辐射能信号能够
较好的反映该 W 型炉内的燃烧,且辐射能信号的引入对机组重要控制参数无异常影响,
理论上验证了辐射能信号参与该 W 型锅炉燃烧优化控制是可行的。
在邯峰电厂#2 W型火焰锅炉上展开引入辐射能信号的燃烧优化控制现场研究,首
先分析辐射能信号与现场运行数据的关联性,然后手动调整风量模拟氧量寻优试验,
最后设置优化的参数将辐射能信号引入氧量-风量控制回路。在典型的低、中、高负
荷下进行了引入辐射能信号进行燃烧优化前后的对比试验,证实了引入辐射能信号参
与控制后炉内燃烧更加完全,锅炉效率有明显的提高,同时在一定程度上抑制了污染
物的排放,对辐射能信号参与燃烧优化控制技术在更广阔的领域的应用起到了巨大的
推动作用。

关键词:W 型火焰锅炉辐射能简化模型风煤比燃烧优化

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华中科技大学硕士学位论文
Abstract
It is necessary to take the appropriate technical means to improve bustion
efficiency, because of W-shape boiler’plicated regulation, bustion, the
over-temperature of superheated steam temperature. Under such situations, Image
processing-based monitoring and optimal control bustion is a good choice.
Model’s building selection are as follows, main steam pressure, load, superheated
steam temperature, drum water level , radiation signal as an intermediate variable. The
model simulation results can be validated through the running data, which indicate that the
radiation signal is capable of reflecting the burning of furnace, without exception influence
of the important control parameters by the introduction of radiation signal into the control
loop, and verify that the radiation signal can be introduced bustion optimization.
We launched the introduction of the radiation signal on bustion optimization in
Hanfeng Power Plant’s 2 # W-shaped boiler. At first, we analysis the relevance of the
radiation signal and unit’s control parameters. And then manually adjust the air flow
simulation of oxygen optimization test, finally set the parameters to optimize the radiation
signals into oxygen - air flow control loop .Through parison of bustion
control as intr