华电技术 ›› 2010, Vol. 32 ›› Issue (6): 57-60.

• 技术交流 • 上一篇    下一篇

空气预热器冷端换热元件的搪瓷改造

白学利,赵俊斌   

  1. 山西漳山发电有限责任公司,山西长治046021
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-06-25 发布日期:2010-06-25

Reformation of cool terminal heat exchange elements of air heater using enameled elements

BAI Xueli,ZHAO Junbin   

  1. Shanxi Zhangshan Power Generation Corporation Limited, Changzhi 046021, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-06-25 Published:2010-06-25

摘要: 燃用高硫煤的锅炉会不可避免地产生空气预热器的冷端腐蚀,甚至会使空气预热器换热元件产生严重损坏和出现堵塞,导致烟道差压过大,造成送引风机失速,甚至停炉。对空气预热器冷端换热元件进行搪瓷改造后,从根本上解决了冷端腐蚀问题。

关键词: 空气预热器, 蓄热元件, 冷端腐蚀, 搪瓷改造

Abstract: The cool terminal corrosion of air heater is occurred unavoidably in sulfur coalfired boiler; even, the heat exchange element could be badly damaged and blocked; and this could cause the overlarge pressure difference of gas duct and the induced draft fan stalling, even cause the boiler shutdown. The heat exchange elements were replaced by enameled elements. After the reformation, the problem of cool terminal corrosion was solved fundamentally. 

Key words: air heater, heat recuperating element, cool terminal corrosion, reformation using enameled element