新型中心给粉燃烧器及燃尽风系统在600MW机组锅炉的应用研究  

Study of Applications of New Type Pulverized Coal-centrally-fed Burners and OFA( Over-fired Air) Systems in 600 MW Boiler Units

作　　者：曾令艳[1] 朱群益[1] 张庆花[1] 张锡乾 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001

出　　处：《热能动力工程》2014年第2期161-164,217,共4页Journal of Engineering for Thermal Energy and Power

基　　金：黑龙江省博士后资助经费(LBH-Z12133)

摘　　要：针对某电厂一台采用斗巴LNASB燃烧器的600 MW机组超临界锅炉存在NOx排放量较高、燃烧器区喷口烧坏变形和结焦等问题。采用新型中心给粉燃烧器和燃尽风系统对锅炉进行改造。改造后的锅炉在600 MW负荷下稳定运行,锅炉NOx排放量降低了50.07%;飞灰含碳量和大渣含碳量分别为1.11%和1.08%,锅炉效率可达到93.51%。In a power plant,there did exist such problems in a 600 MW supercritical boiler unit as a relatively high amount of NOxemissions,and burn-down deformation of and slagging at the spouts of low NOxaxial swirling burners( LNASB) provided by Doosan Babcock Energy Ltd. As a result,new type pulverized coal centrally-fed burners and an OFA system were used to reconstruct the boiler. After the reconstruction,the boiler can operate stably at a load of600 MW,its NOxemissions reduces by 50. 07%,carbon contents of flying ash and slag are 1. 11% and 1. 08% respectively and its efficiency can be up to 93. 51%.

关 键 词：旋流燃烧器 燃尽风 NOX排放 

分 类 号：X701[环境科学与工程—环境工程] O242[理学—计算数学]