410t/h燃煤锅炉降低NO_x排放试验研究  

Experiment Research on Low-NO_x Emission Combustion of 410 t/h Pulverized-Coal Fired Boiler

作　　者：周国民[1] 李宝义[1] 唐建城[1] 

机构地区：[1]中电国华北京热电分公司,北京100025

出　　处：《锅炉技术》2008年第6期58-61,共4页Boiler Technology

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、燃烬风比例、制粉系统投运方式、再燃燃料比例对锅炉效率和NOx排放的影响,为锅炉优化运行,降低NOx污染物排放提供参考依据。One of the primary factors of atmosphere pollutants is NOx from coalplants. In this paper, the characteristics of NOx emission and control for 410 t/ boiler were reported. Excessive air, OFA damper percentage, state of pulverized ration systems operation, reburning coal percentage on NOx emission and comb red power coal-fired coal prepa- ustion efficiency have been investigated. The results show that NOx emission will increase with O2 in flue gas increases. The O2 in flue gas an optimum value of 2.7 %-3.2% for lower NOx release during coal combustion.

关 键 词：氮氧化物 煤粉锅炉 低NOX排放 试验研究 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程]