中国电力 ›› 2018, Vol. 51 ›› Issue (12): 36-41.DOI: 10.11930/j.issn.1004-9649.201809102

• 燃气轮机技术专栏 • 上一篇    下一篇

燃气-蒸汽联合循环进气冷却系统对机组性能影响研究

张高强, 付忠广, 王树成, 张天清   

  1. 华北电力大学 火力发电国家工程技术研究中心, 北京 102206
  • 收稿日期:2018-09-26 修回日期:2018-11-22 出版日期:2018-12-05 发布日期:2018-12-13
  • 作者简介:张高强(1995-),男,硕士研究生,从事热力系统集成与优化研究,E-mail:13260077649@163.com
  • 基金资助:
    北京市自然科学基金项目(3162030);中央高校基本科研业务专项资金项目(2018QN035)。

Research on the Impacts of Gas-steam Combined Cycle Air-inlet Cooling System on Unit Performance

ZHANG Gaoqiang, FU Zhongguang, WANG Shucheng, ZHANG Tianqing   

  1. National Thermal Power Engineering & Technology Research Centre, North China Electric Power University, Beijing 102206, China
  • Received:2018-09-26 Revised:2018-11-22 Online:2018-12-05 Published:2018-12-13
  • Supported by:
    This work is supported by Natural Science Foundation of Beijing (No.3162030) and Fundamental Research Funds for the Central Universities (No.2018QN035).

摘要: 以PG9171E型燃气-蒸汽联合循环电厂为研究对象,对联合循环及进气冷却系统进行建模。分析了该机组加装进气冷却系统后燃机侧、余热锅炉侧和蒸汽轮机侧系统性能的变化情况。结果表明该E型联合循环机组加装进气冷却系统后,进气温度每降低10 ℃,燃机侧出力上升约9%,余热锅炉效率下降约3%。通过蒸汽参数的调整充分利用余热资源能使汽轮机多出力2.1 MW,联合循环效率上升约0.3%。

关键词: 燃气-蒸汽联合循环, 进气冷却, 联合循环, 余热锅炉, 燃气轮机

Abstract: Taking PG9171E gas-steam combined cycle power plant as the research object, in this paper the combined cycle and intake cooling systems were modelled. The performance changes of the gas turbine side, the heat recovery steam generator side and the steam turbine side of the unit with the inlet cooling system were then analyzed. The results showed that for every 10 degrees of the temperature rise, the output of the E-type combined cycle unit with the intake cooling system will increase by about 9% while the efficiency of the heat recovery steam generator is reduced by 3%. In addition, by properly tuning steam parameters and taking full advantage of the waste heat resources the steam turbine will generate more output by about 2.1MW and the combined cycle efficiency can be improved by about 0.3%.

Key words: gas-steam combined cycle, intake cooling, combined cycle, heat recovery steam generator, gas turbine

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