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%.
出处
《热能动力工程》
CAS
CSCD
北大核心
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)
