华电技术 ›› 2020, Vol. 42 ›› Issue (1): 50-53.

• 研究与开发 • 上一篇    下一篇

基于微生物法处理循环冷却水的试验研究

  

  1. 1.中国华电科工集团有限公司,北京〓100070; 2.华电水务科技股份有限公司,北京〓100070
  • 出版日期:2020-01-25 发布日期:2020-03-20

Experimental study on circulating cooling water treatment by microbiological method

  1. 1.China Huadian Engineering Company Limited, Beijing 100070,China; 2.Huadian Water Technology Company Limited, Beijing 100070,China
  • Online:2020-01-25 Published:2020-03-20

摘要: 为更好地节约工业用循环冷却水,模拟电厂循环冷却水(以下简称循环水)系统运行工况,开展了循环水动态模拟试验,监测投加复合微生物菌剂后污垢热阻、腐蚀速率的变化情况。通过测试循环水中电导率、pH值等指标证明,投加了菌剂的试验Ⅱ组的污垢热阻和腐蚀率变化速度均小于不投加菌剂的Ⅰ组,说明复合微生物菌剂起到了阻垢缓蚀的作用。处理循环水时,微生物菌剂比化学药剂更加绿色、高效、环保,可实现高浓缩倍率循环水下机组稳定运行,有良好的经济性。

关键词: 循环冷却水, 微生物菌剂, 缓蚀阻垢, 环保, 经济效益, 污垢热阻

Abstract: In order to further save industrial circulating cooling water,circulating cooling water simulation test was carried out under working condition of the circulating cooling water system in a power plant.The variations of fouling thermal resistance and corrosion rate after adding composite microbial agent were monitored. Testing the conductivity and pH of the circulating water,it is proved that the variation rates of fouling thermal resistance and corrosion rate in the group II that added composite microbial agent were lower than that of group I without agent. It is indicated that the composite microbial agent works well in scale and corrosion inhibition.In the process of circulating cooling water treatment,composite microbial agent is greener,more efficient and more environmental than chemical doses.It can operates stably under high concentration ratio,which is of favorable economical benifits.

Key words: circulating cooling water, composite microbial agents, corrosion and scale inhibition, environmental protection, economic benefits;fouling thermal resistance