中文摘要：

基于快速寻峰法（Fast Searching Peak Wavelength,FPW）原理,研制了水冷光纤探针,对某台330MW循环流化床锅炉稀相区不同高度位置的火焰温度及辐射率进行了测量,并采用FPW法处理测量数据,得到了不同测量位置的火焰温度和辐射率.结果表明：在FPW法测量中,可以用煤粉燃烧火焰温度模型,所得到的循环流化床锅炉火焰温度的最大偏差小于6%;火焰温度和辐射率随炉膛高度的增加而降低;与煤粉锅炉相比,循环流化床锅炉的火焰温度低,辐射率高,辐射换热能力强.

英文摘要：

Based on the principle of fast searching peak wavelength （FPW） method, a water-cooled optical fiber probe was developed to measure the flame temperature and emissivity at different positions in dilute zone of a 330 MW circulating fluidized bed （CFB） boiler, after which the data were processed by FPW method, and subsequently the flame temperature and emissivity at different positions were acquired. Results show that in FPW measurement, the maximum error of flame temperature in CFB boiler would be less than 6 -, if the model of coal-fired boiler is adopted for the flame temperature measurement of CFB boiler; both the flame temperature and emissivity reduce with the rise of furnace height; compared with coal-fired boiler, the CFB boiler has a lower flame temperature, higher emissivity and stronger capability in radiation heat transfer.