地热水温度变化对不锈钢管道腐蚀行为的影响  

Effect of Changes in Geothermal Water Temperature on Corrosion Behavior of Stainless Steel Pipes

作　　者：韦正楠 潘巧景 韩霞[3] WEI Zhengnan;PAN Qiaojing;HAN Xia(Novel Energy Development Center of Shengli Petroleum Administration,SINOPEC,Dongying 257000,China;College of Chemistry and Chemical Engineering,Xinyang Normal University,Xinyang 464000,China;SINOPEC Petroleum Engineering Corporation,SINOPEC,Dongying 257000,China)

机构地区：[1]胜利石油管理局新能源开发中心,山东东营257000 [2]信阳师范学院化学化工学院,河南信阳464000 [3]中石化石油工程设计有限公司,山东东营257000

出　　处：《信阳师范学院学报（自然科学版）》2022年第1期113-117,共5页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金重点项目(519360001)。

摘　　要：采用动电位极化和电化学阻抗谱的方法,探究温度变化对316L不锈钢电极在模拟地热水溶液中腐蚀行为的影响。结果表明,316L不锈钢电极在55~75℃测试区间内均出现结垢现象。不锈钢电极表面结垢时间随温度变化显著,表现为随着温度的升高成膜时间先增加后减小。电化学结果显示不锈钢电极在65℃下具有最小的腐蚀电流密度、最大的腐蚀电位和极化电阻值。By use of the methods of potentiodynamic polarization and electrochemical impedance spectroscopy,the effect of temperature changes on the corrosion behavior of 316L stainless steel electrodes is studied in simulated geothermal aqueous solutions.The experimental results show that the 316L stainless steel electrode scales in the test range of 55~75℃.The fouling time on the surface of the stainless steel electrode changes significantly with temperature,and the film forming time first increases and then decreases with the increase of temperature.The electrochemical results show that the stainless steel electrode has the smallest corrosion current density,the largest corrosion potential and polarization resistance at 65℃.

关 键 词：温度 316L不锈钢 地热水 耐蚀性 

分 类 号：TM912[电气工程—电力电子与电力传动]