华电技术 ›› 2013, Vol. 35 ›› Issue (7): 1-5.

• 专题综述 •    下一篇

锅炉二次风控制系统改造

  

  1. (华电国际莱城发电厂,山东莱芜〓271100)
  • 出版日期:2013-07-25 发布日期:2013-08-20

Reformation of second air control system of boiler

  1. (Huadian International Laicheng Power Plant, Laiwu 271100, China)
  • Online:2013-07-25 Published:2013-08-20

摘要:

摘要:以华电国际莱城发电厂300MW机组锅炉二次风控制系统为例,针对低氮燃烧要求进行了优化,根据运行过程中出现的问题,进行了二次风门执行器改造,并对改造后二次风门控制系统的控制策略进行了调整,供同类机组低氮燃烧改造时参考。

关键词: 关键词:二次风, 控制系统, 低氮燃烧, 智能定位器, 控制策略

Abstract:

Abstract:Taking the second air control system of a 300MW unit boiler of Huadian International Laicheng Power Plant as example, aiming at the requirement of lowNOx combustion, the system was optimized. According to the problems occurred in operation process, the actuator of second air valve was reformed, and the control strategy of the reformed second air valve control system was adjusted. The result in this paper can be used as reference for lowNOx combustion reformation of similar unit.

Key words: Key words:second air, control system, lowNOx combustion, intelligent positioner, control strategy