700MW机组锅炉混煤掺烧试验研究  

Experimental research on blended coal combustion in a 700MW unit boiler

作　　者：毛晓飞[1] 吴英[1] 曾过房 蔡爱民 李海山[1] 付浩声 

机构地区：[1]江西省电力科学研究院,江西南昌330096 [2]江西中电投新昌发电有限公司,江西南昌330096 [3]江西分宜发电有限责任公司,江西新余336607

出　　处：《热力发电》2014年第5期69-74,共6页Thermal Power Generation

基　　金：江西省节能减排科技创新示范工程专项资助项目(20123BBG71023);中电投集团公司资助项目(2012-031-JXF-KJ-X)

摘　　要：对江西新昌电厂的5种常用煤进行了分类,确定了3种参与混煤掺烧试验的煤种,并通过热重试验分析不同比例混煤的燃烧特性。试验共选取了4个负荷点,制定了7种混煤方案、14种上煤方式,并在每个混煤方案下又进行了变氧量试验,以确定最佳氧量、获得不同负荷下的最佳混煤掺烧方案。通过测定各工况下的锅炉热效率,给出了最佳上煤方式。Against five commonly used coals in Jiangxi Xinchang Power Plant,three was selected to be applied in blended coal combustion.By thermogravimetric analysis,combustion characteristics of the mixture of the above three coal were analyzed.During the field blended coal combustion ex-periment,four load points were selected,seven coal mixtures were prepared and fourteen ways of conveying the coal to furnace were developed.Moreover,under each coal blending scheme,the op-timal oxygen content was obtained by oxygen varying test,to ascertain the optimal coal blending scheme.At last,by measuring the boiler efficiency in different operating conditions,the recom-mended coal conveying scheme was obtained.

关 键 词：700 MW机组 锅炉 海外煤 混煤掺烧 热重分析 燃烧特性 热效率 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]