摘要
分析了锅炉炉膛参数对锅炉效率、污染物排放和锅炉寿命的影响,得到这些参数与锅炉燃烧优化运行的相互制约关系.从测量原理和系统构成方面描述了基于激光吸收光谱的炉膛参数检测新技术.以某680MW机组燃煤锅炉为例,进行了基于激光吸收光谱的炉膛参数测量与场重建实验研究.结果表明:应用此方法能够完成炉膛内部多个参数的测量和参数场重建,可以直观有效地指导锅炉燃烧的优化运行;根据测量结果调整锅炉燃烧可使火焰中心处于炉膛中部,火焰均匀地充满炉膛,温度场分布均匀.
An analysis was made to the effects of furnace parameters on the efficiency,pollutant emission and service life of a boiler,so as to study the mutual relationship between these parameters and the boiler combustion optimization.A new technology for measurement of furnace parameters based on laser absorption spectrum was described from the aspect of measuring principle and system structure.Taking a 680 MW coal-fired boiler as an example,field measurement and reconstruction of furnace parameters were carried out to the boiler based on laser spectrum.Results show that via this method,measurement and field reconstruction can be completed to multiple furnace parameters,which may serve as visible and effective guidance to optimization of boiler combustion.By adjusting the boiler combustion according to measurement results,the flame can be positioned in the furnace center,which therefore fills the furnace adequately and makes the temperature field evenly distributed.
出处
《动力工程学报》
CAS
CSCD
北大核心
2014年第8期599-605,共7页
Journal of Chinese Society of Power Engineering
基金
中央高校基本科研业务费专项资金资助项目(2014MS139)
关键词
燃烧优化
炉膛参数
光谱测量
温度场重建
浓度场重建
combustion optimization
furnace parameter
spectral measurement
temperature field reconstruction
concentration field reconstruction
