锅炉启动过程过热器壁温和再热器壁温的控制  

Control of Superheater Wall Temperature and Reheater Wall Temperature During Boiler Start-Up

作　　者：黄耿波 HUANG Gengbo(CHN ENERGY(QUANZHOU)THERMAL POWER CO.,LTD.,Quanzhou 362804)

机构地区：[1]国能(泉州)热电有限公司,泉州362804

出　　处：《现代制造技术与装备》2023年第8期181-183,共3页Modern Manufacturing Technology and Equipment

摘　　要：某厂2台超临界机组于2016年投产,至今在机组启动过程中多次发生屏式过热器、低温再热器壁温超温现象,尤其是低温再热器壁温超温严重。针对启动过程中过热器壁温和再热器壁温的超温现象,从运行调整角度出发,着手分析超温发生的原因、机理、危害,采用措施来防止受热面超温,确保机组安全,避免发生受热面超温爆管,同时有效缩短机组启动时间,节约燃油。So far in the process of unit start-up repeatedly occurred low-temperature reheater,screen-type superheater wall temperature overtemperature phenomenon,especially the low-temperature reheater wall temperature overtemperature serious.In view of the over-temperature phenomenon of superheater and reheater in the start-up process,the causes,mechanism and harm of over-temperature are analyzed from the angle of operation adjustment,and the corresponding measures are discussed to prevent over-temperature of heating surface,to ensure the safety of the unit,to avoid the occurrence of heating surface over-temperature tube burst,while effectively shorten the unit start-up time,save fuel.

关 键 词：过热器 再热器 超温机理 受热面壁温 控制措施 

分 类 号：TM621.2[电气工程—电力系统及自动化]