华电技术 ›› 2016, Vol. 38 ›› Issue (2): 9-10.

• 专题综述 • 上一篇    下一篇

1000MW机组炉内受热面腐蚀的原因以及治理方案

  

  1. 华电国际邹县发电厂,山东邹城〓273522
  • 出版日期:2016-02-25 发布日期:2016-04-15

Causes for corrosion and its treatment scheme of the heating surfaces in furnace of the 1000MW power plant

  1. China Huadian Zouxian Power Plant,Zoucheng 273522,China
  • Online:2016-02-25 Published:2016-04-15

摘要:

摘要:华电国际邹县发电厂1000MW的机组炉内受热面在高温、高压环境下极易发生泄漏,经过分析,其原因为高温腐蚀造成水冷壁管壁减薄。分析了腐蚀产生的原因,从燃烧方式、煤质选择及锅炉结构等方面进行了改进,锅炉受热面泄漏现象得到有效改善。

关键词: 关键词:侧燃风, 高温腐蚀, 水冷壁, 还原性气氛

Abstract:

Abstract:Under the condition of the high temperature and high pressure,the water cooling membrane walls are apt to corrosion and leakage on the heating surface of them.it was the high temperature corrosion that made the pipe walls reduced,which caused the pipe wall couldn’t resist the pressure and the burst happened.The cause for the corrosion of the pipes was analyzed in this paper.Accordingly,the combustion modes,the coal qualities and boiler improvements were improved.After the improvements above, the leakage of the membrane walls were greatly reduced.

Key words: Keywords:side wind, high temperature corrosion, water cooling membrane wall, reducing atmosphere