华电技术 ›› 2019, Vol. 41 ›› Issue (4): 24-28.

• 研究与开发 • 上一篇    下一篇

600MW超临界W型火焰锅炉一次风机RB试验与优化

  

  1. 国电南京自动化股份有限公司,南京〓210032
  • 出版日期:2019-04-25 发布日期:2019-05-10

RB test and optimization of primary air fan in 600MW supercritical W flame boiler

  1. Guodian Nanjing Automation Company Limited, Nanjing 210032, China
  • Online:2019-04-25 Published:2019-05-10

摘要:

以某600MW超临界W型火焰锅炉燃煤机组为研究对象,针对其结构特点及运行方式,设计了一次风机的辅机故障减负荷(RB)控制策略。介绍了一次风机RB试验的动作过程,并对试验期间炉膛负压、主蒸汽温度、再热蒸汽温度等主要参数的变化情况进行了详细分析。针对首次一次风机RB试验中发现的问题,对控制策略进行了相应优化,并再次进行了一次风机RB试验。试验结果表明,优化后控制策略应用效果良好,机组运行稳定,主要参数波动幅度较首次RB试验有了明显改善,可为同类型机组一次风机RB试验的成功实施提供有益的借鉴。

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Abstract:

Taking a 600MW supercritical W flame boiler coalfired unit as the research object,in view of its specific structure characteristics and operation mode,an RB control strategy for primary air fan is designed.It introduces the operating process of primary air fan in RB test,and makes a detailed analysis on the changes of  main parameters which includes furnace pressure,main steam temperature and reheat steam temperature during the test.The control strategy is optimized according to the problems founded in the first primary air fan RB test,then another primary air fan RB test was carried out.The test results show that the optimized control strategy has good application effect and the unit operation stably,the fluctuation range of the main parameters is obviously improved compared with that of the first RB test.The results can provide a beneficial reference for the application of primary air fan RB test with same type.

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