摘要
常规水平浓淡燃烧器的双通道速度差达6～8m／s，该速度差会对燃烧稳定性、燃烧效率和NOx排放造成影响，通过对常规直流煤粉燃烧器、水平浓淡煤粉燃烧器和等速型低NOx燃烧器在350MW电站锅炉上的燃烧过程数值模拟表明：浓淡燃烧技术不改变锅炉炉内的传热特性，等速型低NOx燃烧器比水平浓淡燃烧器可降低NOx排放12％。
The velocity difference of air in two channels of the conventional dense-dilute pulverized-coal concentration burner is 6-8 m/s, which impacts combustion stabilization, burning efficiency, and NOx emission. The process of combustion in a 350 MW boiler was simulated and the results showed that the dense-dilute pulverized-coal concentration combustion technology did not change fttrnace radiation heat transfer, and NOx emission of low NOx pulverized-coal burner in same velocity of two channels was 12% lower than that of the conventional dense-dilute pulverized-coal concentration burner.
出处
《华东电力》
北大核心
2009年第3期482-485,共4页
East China Electric Power
基金
上海市科学技术委员会2007"创新行动计划"重大科技资助项目(07dz12005)
关键词
电站锅炉
等速型低NOx燃烧器
速度差
NOx浓度
utility boiler
low NOx pulverized-coal burner in same velocity of two channels
velocity difference
NOx concentration
