模拟增压流化床燃烧室启动特性的研究  

Study on Characteristics of Start-up Process In a Simulated Pressurized Fluidized Bed Combustor

作　　者：段钰峰[1] 赵长遂[1] 陈晓平[1] 金保升[1] 徐生荣[2] 王逸仁[2] 张志伦[3] 

机构地区：[1]东南大学洁净煤发电和燃烧技术教育部重点实验室,南京210096 [2]南京师范大学动力工程学院,南京210042 [3]哈尔滨锅炉厂有限责任公司,哈尔滨150041

出　　处：《南京师范大学学报（工程技术版）》2001年第4期7-13,45,共8页Journal of Nanjing Normal University(Engineering and Technology Edition)

基　　金：国家"八五"攻关项目资助 (85 - 2 0 5 - 0 2 - 0 2 - 0 4 )

摘　　要：在一座截面为 0 .6 6 4× 0 .6 5 6 m2 的常压流化床燃烧室内 ,进行了热烟气启动增压流化床的系统性模拟试验研究和理论分析 .研制了与中试 PEBC装置成缩小比例的风室结构 ,水冷布风板和启燃室等系统部件 .分别用徐州烟煤、阳泉无烟煤、常州卜弋贫煤和焦作无烟煤矸石混煤 ,试验了热烟气点燃流化床的煤种适应性 .研究了加煤床温、加煤速率、埋管受热面、静止床高、热烟气温度和流量等参数对启动过程的影响规律以及床层温升速率的变化 .Study on characteristics of start up process using hot flue gas is carried out in a simulated Pressurized Fluidized Bed Combustor(PFBC) with a similar water cooled distributor and wind box configuration to the pilot scale PFBC boiler.Coal acceptability is tested in starting up the fluidized bed using hot flue gas based on four different coals including bituminous coal,anthracite,lean coal and gangue blending anthracite.Effects of parameters,such as bed temperature when coal is fed,coal feeding rate,in bed heat transfer tubes,static bed height,hot gas temperature and flow rate,on the start up process is investigated thoroughly.Variations of elevation rate of the bed temperature under various conditions are also conducted.

关 键 词：增压 流化床 启动 特性 

分 类 号：TK223.21[动力工程及工程热物理—动力机械及工程]