滨海电厂水系统碳钢管道的腐蚀控制
Corrosion Control of Steel Pipe for Water System in Coastal Power Plant
摘 要
针对某滨海电厂海水及海水反渗透产水管道的腐蚀现象，采用失重法、扫描电镜、X射线衍射及电化学测试，对比研究了碳钢在其中的腐蚀差异。结果表明：在海水中锈层抑制氧的传递，对碳钢起保护作用；在反渗透产水中锈层起大阴极作用，加速基体腐蚀。实际工程中，海水反渗透产水比海水对碳钢管道更具侵蚀性。重新矿化反渗透产水是降低其腐蚀性的有效方法；另外，可考虑采用更耐蚀的不锈钢、碳钢衬塑管等作为管材。
反渗透产水
碳钢
防腐蚀
seawater
reverse osmosis water
carbon steel
anti-corrosion
Abstract
To control the corrosion of water pipes in a coastal power plant, the difference of corrosion performance for carbon steel in seawater and seawater reverse osmosis (SWRO) water was investigated comparatively by means of weight-loss test, scanning electron microscopy (SEM), X-ray diffraction (XRD) and electrochemical measurement. The results showed that the rust layer formed in seawater had a protective effect on iron by hindering the transfer of dissolved oxygen; but that formed in SWRO water could accelerate iron corrosion by providing a larger cathodic area. In practice, SWRO water showed more corrosive to carbon steel than seawater. Remineralization is a good choice for the post-treatment of SWRO water. Besides, corrosion resistant materials such as stainless steel and lined steel pipe could be designed to replace carbon steel as the material for SWRO water pipe.
中图分类号 TG172 DOI 10.11973/fsyfh-201711017
所属栏目 失效分析
基金项目 国网浙江省电力公司科技项目（5211DS14005D）
收稿日期 2016/2/29
修改稿日期
网络出版日期
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引用该论文: HU Jiayuan,QIAN Zhouhai,ZHU Liwei,LIU Min. Corrosion Control of Steel Pipe for Water System in Coastal Power Plant[J]. Corrosion & Protection, 2017, 38(11): 898
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参考文献
【1】国家发改委、国家海洋局和财政部.海水利用专项规划[M]. 北京:国家发改委、国家海洋局和财政部,2005.
【2】张敏,葛红花,王学娟,等. 碳钢在模拟一级反渗透产水和海水中的腐蚀行为比较[J]. 腐蚀与防护,2015,36(9):814-823.
【3】尹力,曹顺安,吴善宏,等. Q235钢在海水及海水淡化一级RO产水中的腐蚀特性研究[J]. 表面技术,2012,41(3):43-46.
【4】郑雷刚,杨怀玉. 饱和NaCl溶液浸泡下混凝土试块中有机阻锈剂对钢筋腐蚀行为的影响[J]. 物理化学学报,2010,26(9):2354-2360.
【5】HU J Y,CAO S A,YIN L,et al. Electrochemical study on the corrosion of rusted carbon steel in dilute NaCl solutions[J]. Anti-Corrosion Methods and Materials,2014,61(3):139-145.
【6】ZOU Y,WANG J,ZHENG Y Y. Electrochemical techniques for determining corrosion rate of rusted steel in seawater[J]. Corrosion Science,2011,53:208-216.
【7】NISHIKATA A,ICHIHARA Y,HAYASHI Y,et al. Influence of electrolyte layer thickness and pH on the initial stage of the atmospheric corrosion of iron[J]. Journal of the Electrochemical Society,1997,144:1244-1252.
【8】SYED S. Atmospheric corrosion of carbon steel at marine sites in Saudi Arabia[J]. Materials and Corrosion,2010,61:238-244.
【9】林泽泉,王文奎,刘爽,等. 小口径管道旋风法防腐治理技术[J]. 腐蚀与防护,2015,36(6):590-593.
【10】余绍玲,杨胜全,胡家元. 海水淡化一级反渗透产水中带锈碳钢的腐蚀控制[J]. 腐蚀与防护,2014,35(1):91-95.
【11】李东洋,韩志男,马铭,等. 反渗透海水淡化水后处理技术[J]. 水处理技术,2015,41(8):67-71.
【2】张敏,葛红花,王学娟,等. 碳钢在模拟一级反渗透产水和海水中的腐蚀行为比较[J]. 腐蚀与防护,2015,36(9):814-823.
【3】尹力,曹顺安,吴善宏,等. Q235钢在海水及海水淡化一级RO产水中的腐蚀特性研究[J]. 表面技术,2012,41(3):43-46.
【4】郑雷刚,杨怀玉. 饱和NaCl溶液浸泡下混凝土试块中有机阻锈剂对钢筋腐蚀行为的影响[J]. 物理化学学报,2010,26(9):2354-2360.
【5】HU J Y,CAO S A,YIN L,et al. Electrochemical study on the corrosion of rusted carbon steel in dilute NaCl solutions[J]. Anti-Corrosion Methods and Materials,2014,61(3):139-145.
【6】ZOU Y,WANG J,ZHENG Y Y. Electrochemical techniques for determining corrosion rate of rusted steel in seawater[J]. Corrosion Science,2011,53:208-216.
【7】NISHIKATA A,ICHIHARA Y,HAYASHI Y,et al. Influence of electrolyte layer thickness and pH on the initial stage of the atmospheric corrosion of iron[J]. Journal of the Electrochemical Society,1997,144:1244-1252.
【8】SYED S. Atmospheric corrosion of carbon steel at marine sites in Saudi Arabia[J]. Materials and Corrosion,2010,61:238-244.
【9】林泽泉,王文奎,刘爽,等. 小口径管道旋风法防腐治理技术[J]. 腐蚀与防护,2015,36(6):590-593.
【10】余绍玲,杨胜全,胡家元. 海水淡化一级反渗透产水中带锈碳钢的腐蚀控制[J]. 腐蚀与防护,2014,35(1):91-95.
【11】李东洋,韩志男,马铭,等. 反渗透海水淡化水后处理技术[J]. 水处理技术,2015,41(8):67-71.
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