RETROFITTING OF AIR PREHEATER FOR CZECHMADE 500MW UNITS

HAN Dongtai; AN Xuezhong; WANG Yuping

doi:10.19666/j.rlfd.2004.05.009

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RETROFITTING OF AIR PREHEATER FOR CZECHMADE 500MW UNITS

更新时间：2025-09-28

- RETROFITTING OF AIR PREHEATER FOR CZECHMADE 500MW UNITS
- Thermal Power Generation Issue 5, Pages: 29-31(2004)
- 作者机构：
  
  1. 中国矿业大学
  2. 神头第二发电厂
  3. 中国农业大学,江苏,徐州,221008
  4. ,北京,100094
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2004.05.009
  CLC： TK229.7
- Published：2004
- 稿件说明：
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HAN Dongtai, AN Xuezhong, WANG Yuping. RETROFITTING OF AIR PREHEATER FOR CZECHMADE 500MW UNITS[J]. Thermal power generation, 2004, (5): 29-31.
DOI：

HAN Dongtai, AN Xuezhong, WANG Yuping. RETROFITTING OF AIR PREHEATER FOR CZECHMADE 500MW UNITS[J]. Thermal power generation, 2004, (5): 29-31. DOI： 10.19666/j.rlfd.2004.05.009.

摘要

介绍了神头第二发电厂 2× 5 0 0MW机组空气预热器为减小漏风

提高设备的安全性、经济性而进行的两次改造情况

其中包括转子中心重新定位、下部扇形板调整以及环向密封改造。运行结果表明

改造后的空气预热器运行平稳

电流基本保持在 5A左右

漏风率降到 7.6 %以下

经济效益显著

Abstract

The second retrofitting scheme of air preheater for 2×500MW units in Shentou Power Plant No.2 to decrease air leakage factor

as well as to enhance the safety and economic behavior of said equipment has been presented

including relocation of the rotor centre

adjustment of the lower segmental plate

and improvement of the annular sealing. Results of operation show that the predicted effectiveness has been obtained after said retrofitting.

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