大型电站锅炉混煤掺烧试验研究  

Experimental Study on Blended Coal Combustion of Large Power Plant Boilers

作　　者：刘发圣[1] 谈紫星 桂良明[1] 敖光辉 程文峰 舒开泰 陈林国[1] 

机构地区：[1]国网江西省电力科学研究院,南昌330096 [2]贵溪发电有限责任公司,江西贵溪335400 [3]中电投江西电力有限公司,南昌330006

出　　处：《发电设备》2015年第4期248-251,260,共5页Power Equipment

摘　　要：针对某电厂640 MW机组锅炉长期在非设计煤种下运行,严重影响锅炉安全经济运行的问题,对该电厂的常用煤种进行元素分析及热重分析,并进行了分类,确定了参与混煤掺烧研究的煤种。选取3个具有代表性的负荷点,通过掺烧不同比例煤种、不同上煤方式进行热态试验,获得不同负荷下的最佳混煤掺烧方案和锅炉上煤方式,有效提高了该机组锅炉的安全性和经济性。To solve the problems occurring in a 640 MW boiler caused by burning non-designed coal for a long period that had led to great impact on the safe and economical operation of the boiler, elemental analysis, thermo-gravimetric analysis and classification were made for various kinds of coal commonly-used in the power plant, after which the coal types to be involved in the research on blended coal combustion were determined. With three characteristic load points selected and through conducting hot tests with coal mixtures in different blending proportions under different feeding modes, an optimal blended coal combustion scheme and coal feeding mode were obtained for the boiler, thus effectively enhancing the safety and economic efficiency of the boiler unit.

关 键 词：锅炉 混煤掺烧 热重分析 燃烧特性 

分 类 号：TK227.1[动力工程及工程热物理—动力机械及工程]