华电技术 ›› 2011, Vol. 33 ›› Issue (12): 15-17.

• 专题综述 • 上一篇    下一篇

600MW超临界锅炉启动初期分隔屏出口汽温超限分析与控制

肖丽峥,刘晓军   

  1. 湖北华电襄阳发电有限公司,湖北襄阳441141
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-12-25

Analysis and control of steam overtemperature in separated platen superheater outlet of 600MW supercritical boiler at initial startup stage

XIAO Lizheng, LIU Xiaojun   

  1. Hubei Huadian Xiangyang Power Generation Corporation Limited, Xiangyang 441141, China
  • Received:1900-01-01 Revised:1900-01-01 Published:2011-12-25

摘要: 上海锅炉厂生产的600MW超临界锅炉分隔屏过热器入口未设计减温水系统,在锅炉启动初期,由于采用等离子点火以及湿态运行阶段锅炉热损失大等原因,分隔屏过热器出口汽温容易超限。针对这一现象,经过分析及现场实践,找到了有效控制出口汽温的办法。 

关键词: 超临界锅炉, 分隔屏超温, 原因, 措施

Abstract: The attemperating water system is not designed in the inlet of the separated platen superheater of the 600MW supercritical boiler manufactured in Shanghai Boiler Works Corporation Limited. At the initial startup stage of the boiler, due to the plasma ignition and the larger heat loss of the boiler in wetstate operation stage, the steam temperature in outlet of the separated platen superheater is easily exceeded the limit. Aiming at this problem, based on analysis and site practice, the effective method to control the outlet steam temperature was found.

Key words: supercritical boiler, overtemperature of separated platen, reason, measure