INCREASING HERMETICITY OF AIR PREHEATER IN COAL-FIRED POWER PLANT

LI Jian-hong Huaneng Yushe Power Plant

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INCREASING HERMETICITY OF AIR PREHEATER IN COAL-FIRED POWER PLANT

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- INCREASING HERMETICITY OF AIR PREHEATER IN COAL-FIRED POWER PLANT
- Thermal Power Generation Vol. 38, Issue 6, Pages: 56-57(2009)
- 作者机构：
  
  华能榆社电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.34
- Published：2009
- 稿件说明：
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LI Jian-hong Huaneng Yushe Power Plant. INCREASING HERMETICITY OF AIR PREHEATER IN COAL-FIRED POWER PLANT[J]. Thermal power generation, 2009, 38(6): 56-57.
DOI：

LI Jian-hong Huaneng Yushe Power Plant. INCREASING HERMETICITY OF AIR PREHEATER IN COAL-FIRED POWER PLANT[J]. Thermal power generation, 2009, 38(6): 56-57. DOI：

摘要

华能榆社电厂2×300MW机组锅炉空气预热器(空预器)存在转子卡涩、密封片磨损严重、漏风率大等问题

分析认为主要由转子热变形引起。为此

对2台机组空预器进行了柔性接触式密封改造

改造后空预器漏风率从20%以上下降到3%～5%

效果明显。

Abstract

Problem of lage air-leakage rate in air preheater of boilers for 2×300 MW units in Huaneng Yushe Power Plant has resulted from the following causes:unsmooth jamming of the rotor;severe worn-out of the sealing strips;frequent replacement of said sealing strips;poor reliability of the automatic control system for air-leakage etc.Through analysis

it is believed that the air-leakage is mainly resulted from heat distortion of the rotor.Regarding to this

the air preheaters of said two units have been retrofitted with flexible contact sealings.After retrofitting

the air-leakage rate of air preheater has decreased from above 20% to 3%~5%

having remarkable effectiveness.

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AIR PREHEATER SEAL RETROFITTING OF THE 800 MW BOILER

BENDING ROTOR'S VIBRATION CONTROL OF STEAM TURBINE FOR A 300MW UNIT

RETROFITTING AIR PREHEATER OF BOILER TO ADOPT CONTACTING TYPE FLEXIBLE SEAL

A rotor fault diagnosis method based on EEMD cloud model and SVM

燃煤锅炉排烟温度高的原因分析及运行中可采取的措施

Related Author

ZOU Hai-feng1

LI Ying21.School of Business Administration

袁立平

罗剑斌

李力

谭士森

XI Guang-hui

ZHANG JunDatang Xutang Power Generation Co Ltd

Related Institution

School of Business Administration, North China Electric Power University

Shenhua Guohua (Beijing) Electric Power Research Institute

Henan Electric Power Test and Research Institute

Henan Electric Power Test and Research Institute Zhengzhou

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