W火焰锅炉全烧烟煤一体化改造方案  

Integrated Modification Scheme for W-flame Boiler Burning Bituminous Coal

作　　者：黄继忠 杨学权 张苗 张宛玉 冉燊铭 杨泽勇 缪淼 胡德浩 李小荣 宋捷 HUANG Jizhong;YANG Xuequan;ZHANG Miao;ZHANG Wanyu;RAN Shenming;YANG Zeyong;MIAO Miao;HU Dehao;LI Xiaorong;SONG Jie(Guoneng Jiujiang Power Generation Co.,Ltd.,Jiujiang 332000,China;Sichuan Provincial Key Laboratory of Clean Combustion and Flue Gas Cleaning,Chengdu 611731,China;Dongfang Boiler Co.,Ltd.,Zigong 643001,China)

机构地区：[1]国能九江发电有限公司,江西九江332000 [2]清洁燃烧与烟气净化四川省重点实验室,四川成都611731 [3]东方电气集团东方锅炉股份有限公司,四川自贡643001

出　　处：《锅炉制造》2025年第1期1-4,10,共5页Boiler Manufacturing

摘　　要：在役的燃用低挥发分煤W火焰锅炉普遍存在炉效低、NO_(x)排放高、结焦严重等问题,在双碳目标和“三改联动”背景下急需提升可靠性、经济性和环保性。某电厂进口350MW亚临界W火焰锅炉机组实施了全烧烟煤的一体化改造,涵盖制粉系统、燃烧系统、锅炉受热面改造等方面内容。改造后锅炉运行良好,炉膛不结焦,锅炉效率由改造前91.64%提高至94%以上,锅炉出口NO_(x)大幅降低,调峰能力满足30%负荷深度调峰需要,机组总体性能显著提高。W-flame boilers burning low-volatile coal generally have problems such as low furnace efficiency,high NO_(x) emissions and severe coking.In the context of“double carbon”targets and"three-renovation",it is necessary to improve reliability,economy and environmental protection.A 350MW subcritical W-flame boiler unit has implemented an integrated transformation of fully burning bituminous coal,including the pulverization system,combustion system,and boiler heating surface transformation.After the transformation,the boiler operates well and the furnace is not coking.The boiler efficiency has increased from 91.64%to over 94%.The NO_(x) at the boiler outlet has been significantly reduced,and the peak shaving capacity meets the deep peak shaving needs of 30%load.The overall performance of the unit has been significantly improved.

关 键 词：W火焰锅炉 无烟煤 烟煤 改造方案 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]