双尺度低NO_x燃烧技术在1000MW超超临界锅炉上的应用

Application of Double Scale Low NO_x Combustion Technology in 1000MW Ultra Supercritical Dual Circle Tangential Firing Boiler

为深度降低NOx排放,某电厂采用双尺度低NOx燃烧技术对1000 MW超超临界双切圆锅炉燃烧系统进行了改造。改造后锅炉NOx排放质量浓度由改造前的320 mg/m3降至190 mg/m3左右,而锅炉经济性并未降低,其它主要性能参数均达到设计值要求。此次改造取得了预期的效果。

In order to further reduce NOx emission, the double scale low NOx combustion technology was adopted to retrofit the burners of a 1000MW ultra supercritical dual circle tangential firing boiler in a power plant. After the retrofit, the NOx emission mass concentration decreased from 320mg/m3 to 190mg/m3, the economy of the boiler did not decrease and other major parameters obtained in performance tests agreed well with the design data of boiler. The retrofit had achieved the expected effect.