300MW循环流化床锅炉运行问题及解决方法  

Problems in operation of 300MW CFB boiler and solving methods

作　　者：刘彦鹏[1] 孙祖平[2] 

机构地区：[1]安徽省电力科学研究院,安徽合肥230601 [2]淮北临涣中利发电有限公司,安徽淮北235039

出　　处：《华电技术》2010年第2期37-39,共3页HUADIAN TECHNOLOGY

摘　　要：介绍了淮北临涣中利发电有限公司300MW循环流化床机组在调试与试运行过程中出现的布风板阻力低、床枪易堵塞、风道燃烧器膨胀节易破损、给煤系统故障、外置式换热器冷态加料与漏渣和煤泥枪堵塞等问题。采取了严格控制入炉煤粒度、床枪停用时通入压缩空气、风道燃烧器膨胀节采用水冷、严格控制入炉煤含水率、增加外置式换热器的风室放灰管、根据煤泥枪出口压力手动加水等措施,上述问题得到了解决。The problems occurred during commission and train run of 300MW CFB unit in Huaibei Linhuan Joinlion Power Generation Corporation Limited were introduced,which included the lower resistance of the air distributor,the easy jam of the bed lances,the damage of expansion joints of in-duct burner,the fault of the coal feeding system,the problems of adding bed material in cold-state experiment and slag leakage of external heat exchanger,and the jam of peat gun.The following ways were used to solve the above-mentioned problems,such as strictly controlling the particle size distribution of coal,ventilating the bed lances with compressed air when they were stopped,cooling the expansion joints of in-duct burners by water,controlling the moisture content of coal in the lower range,installing tube below the wind chamber of external heat exchangers and manually adding water according to the outlet pressure of the peat guns.By the above means,the problems were solved.

关 键 词：循环流化床 布风板阻力 床枪 风道燃烧器膨胀节 外置式换热器 煤泥枪 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]