中国电力 ›› 2012, Vol. 45 ›› Issue (11): 22-27.DOI: 10.11930/j.issn.1004-9649.2012.11.22.5

• 发电 • 上一篇    下一篇

1 000 MW湿冷机组主汽轮机驱动给水泵研究

朱瑾,付焕兴,马爱萍   

  1. 西南电力设计院,四川 成都 610021
  • 收稿日期:2012-08-18 出版日期:2012-11-18 发布日期:2016-02-29
  • 作者简介:朱瑾(1979-),男,陕西西安人,工程师,从事火力发电厂热机专业设计工作。

Research on Main-Turbine-Driven Feed-Water Pump for 1 000-MW Wet Cooling Units

ZHU Jin, FU Huan-xing, MA Ai-ping   

  1. Southwest Electric Power Design Institute, Chengdu 610021, China
  • Received:2012-08-18 Online:2012-11-18 Published:2016-02-29

摘要: 对锅炉给水泵采用主汽轮机驱动方式进行了深入论述和分析,并对1 000 MW超超临界湿冷机组锅炉给水泵采用小汽轮机驱动和主汽轮机驱动2种方式进行了综合技术经济比较。分析比较结果表明:锅炉给水泵采用主汽轮机驱动方案从技术角度来讲是完全可行的;对于1 000 MW超超临界湿冷机组,给水泵采用主汽轮机驱动方式比小汽轮机驱动方式的热经济性好;虽然主汽轮机驱动方案的初始投资比小汽轮机驱动方案高,但从电厂全寿命周期20年考虑,累计节约的运行费用基本上能收回电厂增加的初始投资,而且随着煤炭资源的日益紧张,采用主汽轮机驱动给水泵方案的节能效果优势将越来越明显。

关键词: 火力发电, 给水泵, 主汽轮机驱动, 湿冷机组, 技术经济

Abstract: The mode of boiler feed-water pump adopting main turbine drive is introduced and discussed, and the technical and economic performance is compared between the feed-water pumps adopting main turbine drive and small turbine drive for 1 000-MW ultra-supercritical wet cooling units. The results show that it is feasible from the technical point that main turbine drive is adopted by feed-water pumps. For 1 000-MW ultra-supercritical wet cooling power units, the thermal economics of main turbine drive is better than that of small turbine drive. Although the initial cost of main turbine drive is higher than that of small turbine drive, it could be recovered through the accumulated savings in operating costs over the twenty-year life cycle of the power plant. With the reduction of coal resources, the advantages of main turbine drive for boiler feed-water pumps could become more and more significant.

Key words: thermal power generation, feed-water pump, main turbine drive, wet cooling unit, technical economics

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