华电技术 ›› 2019, Vol. 41 ›› Issue (6): 42-45.

• 节能与环保 • 上一篇    下一篇

燃煤电厂氟塑料换热系统的技术经济分析

  

  1. 湖北华电襄阳发电有限公司,湖北襄阳〓441021
  • 出版日期:2019-06-25 发布日期:2019-07-12

Technoeconomic analysis of fluorine plastic heat exchange system in coalfired power plants

  1. Hubei Huadian Xiangyang Power Generation Company Limited, Xiangyang 441021, China
  • Online:2019-06-25 Published:2019-07-12

摘要:

为掌握燃煤电厂氟塑料换热系统的投资及运行成本,通过对300MW和600MW燃煤机组不同布置方式,不同降温幅度的氟塑料换热系统进行设计,测算出氟塑料换热系统的投资费用,并系统研究了燃煤单价、机组利用小时数及烟气降温幅度对氟塑料换热系统的运行成本的影响。得出了氟塑料换热系统能够实现节煤、节水等节能降耗目标,但对不同燃煤机组需按照其降温幅度进行最优化的布置方式选取,同时燃煤单价、机组利用小时数及烟气降温幅度均对氟塑料换热系统的运行成本产生较大影响的结论。氟塑料换热系统在设计时需考虑燃煤单价和机组利用小时数,同时需选取最佳的烟气降温幅度和布置方式。

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Abstract:

In order to obtain the investment and operating cost of fluorine plastic heat exchange system in coalfired power plants,its designs for 300MW and 600MW coalfired units with different arrangements and different flue gas cooling range are made, and the investment of the system are calculated. The effects of coal price, unit utilization hours and flue gas cooling range on the operating cost of fluorine plastic heat exchange system are studied systematically. Achievable goals on coal saving and water saving made by fluorine plastic heat exchange system is set.The optimal arrangement for different coalfired units must be made in accordance with their flue gas cooling ranges.Meanwhile, the conclusion that coal price,unit utilization hours and flue gas cooling range have a great impact on operating cost of fluorine plastic heat exchange system is made. Therefore, these factors should be considered in heat exchange system designing.The optimized flue gas cooling range and arrangement should be selected at the same time.

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