试验研究

离子交换微碱化处理发电机内冷水试验研究

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  • 武汉大学动力与机械学院, 湖北武汉 430072
叶春松(1961-),1982年毕业于武汉水电学院,现为武汉大学教授博士.电话:027-87874941.

网络出版日期: 2010-10-01

Study on the turbo-generator inner cooling water treated by ion exchange micro-basification

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  • School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China

Online published: 2010-10-01

摘要

采用离子交换微碱化技术处理发电机内冷水,将内冷水中微量溶解的中性盐Cu(HCO3)2转化为NaOH,调节溶液成微碱性,从而有效地抑制了铜导线的腐蚀。现场旁路模拟试验结果表明:在小交换柱内填装等工作交换容量的钠型、氢氧型离子交换树脂后,能将Cu2+平均质量浓度为371.0μg/L的微酸性内冷水转变成几乎不含Cu2+的微碱性水,出水pH的变化范围为7.60~8.95。离子交换柱之前和之后的铜试片试验结果显示:交换柱前的内冷水具有腐蚀性,而经交换柱处理后的内冷水具有抑制铜导线腐蚀的功效。

本文引用格式

叶春松, 张晋, 钱勤, 范圣平 . 离子交换微碱化处理发电机内冷水试验研究[J]. 工业水处理, 2004 , 24(6) : 17 -19 . DOI: 10.11894/1005-829x.2004.24(6).17

Abstract

A process named ion exchange micro-basification is put forward in the treatment of turbo-generator inner cooling water. The process translates the minim soluble Cu(HCO3)2 into NaOH, regulating solution alkalescent and restraining copper corrosion effectively. Field bypass simulated experimental results show that the small exchange column, which is composed of cation exchanger resin of Na-type and anion exchanger resin of OH-type by equal proportion of exchange capacity, is able to change the light acidic inner cooling water with an average Cu2+ content of 371.0 μg/L into light basic water nearly without Cu2+. The pH of the effluent from the ion exchange mixed bed is in the range of 7.60 to 8.95. The copper tested before and after the small exchange column shows that the cooling water treated by resin has an obvious effect on restraining copper corrosion.

参考文献

[1] 林婵希, 梁世荣, 农翠坚. BTA+EA防腐处理在发电机内冷水系统中的应用[J]. 广西电力技术, 1995, (1):49-52
[2] 龚洵洁. 热力设备的腐蚀与防护[M]. 北京: 中国电力出版社, 1998. 197-198
[3] 张澄信, 陈志和. 离子交换水处理试验研究原理[M]. 武汉: 华中理工大学出版社, 1997. 31-38

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