燃煤锅炉低氧燃烧降低NO_x排放特性及节能分析  

Experiment Research on Low NO_x Emission with Low Oxygen Combustion of Pulverized-coal Fired Boiler and Analysis of Energy Saving

作　　者：周国民[1] 

机构地区：[1]中电国华北京热电分公司

出　　处：《电站系统工程》2006年第5期29-31,共3页Power System Engineering

摘　　要：氮氧化物是燃煤电站锅炉排放的大气污染物之一。在410 t/h锅炉上进行了NOx排放特性试验,试验得出锅炉过量空气系数、配风方式、制粉系统投运方式对NOx排放的影响,并对氧量与锅炉效率的关系进行了探讨,为锅炉优化运行,降低NOx污染物排放提供参考依据。运行结果表明,低氧燃烧的节能效果显著。One of the primary factors of atmosphere pollutants is NOx from coal-fired power plants. The characteristics of NOx emission and control for 410t/h coal-fired boiler were reported. Effect of excessive air, manner of distributing air, state of pulverized coal preparation systems operation on NOx emission have been investigated. The results show that NOx emission will increase with increase of O2 in flue gas. The O2 in flue gas is an optimum value of 2% to 3% for lower NOx release during coal combustion. In addition, optimizing operation for combustion may produce lower NOx emission and improve combustion efficiency. The running results showed that low oxygen combustion benefits energy saving.

关 键 词：煤粉锅炉 低氧燃烧 低NOX排放 燃烧调整 节能 

分 类 号：X701.7[环境科学与工程—环境工程]