华电技术 ›› 2008, Vol. 30 ›› Issue (11): 43-45.

• 一线动态 • 上一篇    下一篇

回转式空气预热器的漏风防治

罗卫军   

  1. 贵州省六盘水市发耳电厂,贵州六盘水 553017
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-11-25 发布日期:2008-11-25

Prevention and control of air leakage of rotary air preheater

LUO Weijun   

  1. Guizhou Liupanshui Faer Power Plant, Liupanshui 553017, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-11-25 Published:2008-11-25

摘要: 回转式空气预热器是大中型电站锅炉上广泛采用的尾部换热设备,漏风率高是该类设备的致命缺点,由于漏风的存在,既影响了锅炉的热效率及其风量的供给,又增加了锅炉通风机械的功率消耗,使发电煤耗和供电煤耗增加。提出了空气预热器漏风防治的10条思路。

关键词: 空气预热器, 漏风机理, 密封结构, 漏风防治

Abstract: Rotary air preheater is heat exchange equipment widely used in large and mediumsize power boiler at the rear. The fatal shortcoming of the equipment is high air leakage factor. The leakage air not only influences the thermal efficiency of boiler and the supply of air flow, but also increases the power consumption of the draft fans, and this leads the increase of both grass and net coal consumption rate. Ten of ideas for prevention and control of air leakage of air preheater were proposed in this paper.

Key words: air preheater, mechanism of air leakage, sealing structure, prevention and control of air leakage