华电技术 ›› 2014, Vol. 36 ›› Issue (8): 21-23.

• 技术交流 • 上一篇    下一篇

间隙自补偿漏风控制系统在空气预热器密封改造中的应用

  

  1. (哈尔滨兴隆锅炉有限公司,哈尔滨〓150089)
  • 出版日期:2014-08-25 发布日期:2014-10-11

Application of gap selfcompensating air leakage control system in air preheater seal reformation

  1. (Harbin Xinglong Boiler Company Limited, Harbin 150089, China)
  • Online:2014-08-25 Published:2014-10-11

摘要: 摘要:回转式空气预热器漏风率较高是一直困扰各大发电企业的难题,它严重影响着机组的经济运行。哈尔滨兴隆锅炉有限公司采用一种全新的漏风控制技术——间隙自补偿漏风控制系统,在湖北能源集团鄂州发电有限公司 #3机组大修期间对空气预热器进行了密封改造。改造后,机组在满负荷及变负荷运行的情况下,漏风率长期保持在4%~5%,保证了机组的经济运行。

关键词: 关键词:空气预热器, 密封改造 , 间隙自补偿漏风控制系统, 效果, 效益

Abstract: Abstract:The larger air leakage rate of the rotary air preheater is difficulty troubling many large power generation enterprises, and it influences on unit economic operation seriously. Using a new air leakage control technology —— the gap selfcompensating air leakage control system, the Harbin Xinglong Boiler Company Limited implemented the air preheater seal reformation of unit No.3 in Ezhou Power Generation Company limited of Hubei Energy Group during the unit overhaul period. After reformation, under unit full load and variable load conditions, the air leakage rate remained within 4%~5% for long term, and the unit economic operation was ensured.

Key words: Keywords:air preheater, seal reformation, gap selfcompensating air leakage control system, effect, benefit