中国电力2017，Vol.50Issue(7)：133-137,142,6.DOI:10.11930/j.issn.1004-9649.2017.07.133.05
纳滤处理火电厂循环水补充水提高浓缩倍率试验研究
Experimental Study on Improving the Concentration Ratio of Circulating Water by Processing Make-up Water with Nanofiltration in Coal-Fired Power Plants
李乐 1马志环 2翟绍晶 1李亚娟 1王正江 1翟佳明 1降晓艳1
作者信息
- 1. 西安热工研究院有限公司,陕西西安710032
- 2. 江苏镇江发电有限公司,江苏镇江212114
- 折叠
摘要
Abstract
Large quantities of water are required in thermal power plants,of which primarily the circulating cooling water accounts for over 70％ of the total water consumption.To explore the operating control technique of the circulating cooling water with high concentration ratio,the make-up water treatment with nanofiltration (NF) processing is studied and tested in a power plant with the processing capacity of 18 m3/h.The test results show that at the recovery of 90％,the desalination rate is about 70％,while the removal rate of divalent ions,such as Ca2+,Mg2+ and SO42-,is over 80％ and the COD of yielding water is not more than 2 mg/L.Then,the NF processed water is used in the static scale inhibition test and the coupon corrosion test.The test results show that the concentration ratio of the circulating water can be maximized by as much as 33.98 times,and at this time,the circulating water system can operate at high concentration ratio with zero cooling tower discharge,which exhibits remarkable water-saving effect and environmental benefits.关键词
火电厂/循环水/补充水处理/纳滤/浓缩倍率Key words
coal-fired power plant/circulating water/make-up water treatment/Nanofiltration/concentration ratio分类
信息技术与安全科学引用本文复制引用
李乐,马志环,翟绍晶,李亚娟,王正江,翟佳明,降晓艳..纳滤处理火电厂循环水补充水提高浓缩倍率试验研究[J].中国电力,2017,50(7):133-137,142,6.
