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某2×1 000 MW燃煤电厂淡水获取方案探讨

Discussion on Fresh Water Acquisition Scheme for 2×1 000 MW Coal-Fired Power Plant

  • 摘要:
      目的  2×1 000 MW燃煤机组的淡水用量约为500多t/h,如何获取这部分淡水对于电厂的安全、经济地运行至关重要。
      方法  文章通过对滨海电厂的几种淡水获取方案进行技术和经济方面的对比分析,希望对特定边界条件下的淡水方案决策提供一些建议。
      结果  通过文章探讨发现,自来水取水方案供水成本较低,但存在取水协议、输水管线征地等问题。海水淡化虽然节省淡水资源,具有良好的社会效益,但投资较大,运行维护工作量大,运行费用较高,供水成本高。
      结论  2种淡水获取方案均可行,在有充足的自来水可获取的情况下,建议采用自来水作为电厂的淡水水源。

     

    Abstract:
      Introduction  The fresh water consumption of 2 × 1000 MW coal-fired units is about more than 500 tons per hour, and how to obtain this part of fresh water is very important for the safe and economic operation of power plants.
      Method  In this paper, several fresh water supply schemes for coastal power plants were compared and analyzed from the aspects of technology and economy, aiming to provide some suggestions for the decision making of fresh water schemes under specific boundary conditions.
      Result  Through the discussion of this paper, it is found that the water supply cost of tap water supply scheme is low, but there are some problems such as water intake agreement, land acquisition of water pipeline. Although seawater desalination saves fresh water resources and has good social benefits, it requires high investment, heavy operation and maintenance workload, high operation cost and high water supply cost.
      Conclusion  The two fresh water supply schemes are feasible, and it is suggested that tap water should be used as the fresh water source of the power plant when sufficient tap water is available.

     

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