华电技术 ›› 2018, Vol. 40 ›› Issue (2): 61-63.

• 节能与环保 • 上一篇    下一篇

循环水排污水用作脱硫工艺水的研究与应用

  

  1. 山西潞光发电有限公司,山西长治〓046699
  • 出版日期:2018-02-25 发布日期:2018-03-28

Research and application of using circulating discharged water as the process water of desulfurization

  1. Shanxi Luguang Power Generation Company Limited, Changzhi 046699,China
  • Online:2018-02-25 Published:2018-03-28

摘要:

为节约用水并减少废水排放,可将电厂循环水排污水用于脱硫。对某电厂循环水排污水水质进行分析,确定循环水排污水水质可基本满足脱硫工艺制浆用水和废水处理用水水质要求,用作冲洗水和冷却用水虽然存在结垢风险,但因循环水中加有缓蚀阻垢剂且在流动的状态下,不易成垢。循环水排水作为脱硫工艺水后,需增加投资10万元,但每年可节约费用约411万元,环保和经济效益良好。

关键词:

Abstract:

To save water and reduce waste water discharge, the circulating discharged water of power plant can be used for desulphurization. Through analyzing the quality of circulating discharged water from a certain power plant, it ensures that the circulation waste water can basically meet the quality requirements of pulping water and waste water treatment water in desulfurization process. Though there is scaling risk if it is used as the flushing water and cooling water, the circulation waste water has been added in scale inhibitor and corrosion inhibitor and keeps flowing, which make it difficult to scale. Taking circulating discharged water as the desulfurization process water, the investment will increase by 100,000 yuan, but the annual cost can be saved by about 4.11 million yuan, and the environmental protecting and economic benefits are prominent.

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