模拟地热水温度对镀锌钢管腐蚀与结垢的影响

吴坤湖; 李卫平; 刘慧丛; 朱立群

模拟地热水温度对镀锌钢管腐蚀与结垢的影响

北京航空航天大学材料科学与工程学院, 北京 100191

基金项目: 国家高技术研究发展计划资助项目(2007AA05Z441)

详细信息

作者简介:
吴坤湖(1983-),男,海南万宁人,硕士生,wukunhu@163.com.

中图分类号: TG 172.5
计量
- 文章访问数: 4416
- HTML全文浏览量: 225
- PDF下载量: 946
- 被引次数: 0
出版历程
- 收稿日期: 2009-08-31
- 网络出版日期: 2010-10-31

Effect of temperature on corrosion and scaling of galvanized steel pipe in simulated geothermal water

School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 针对地热水环境中金属管道常见的腐蚀与结垢问题,采用扫描电子显微镜、能谱仪、X射线衍射仪等研究了不同温度的模拟地热水中镀锌钢管的腐蚀与结垢行为.结果表明:实验前期镀锌钢管的表面出现两种形貌("球"状和"针"状),不同温度的地热水中腐蚀与结垢产物的晶体形状不同,产物成分主要为Zn(OH)₂,ZnO,CaCO₃和MgCO₃;镀锌钢管表面产物的分布对镀锌钢管在模拟地热水中的进一步腐蚀有一定程度的抑制;50℃地热水中的镀锌钢管表面的腐蚀坑面积较小,而在65℃和80℃地热水中腐蚀坑面积较大,镀锌钢管的腐蚀与结垢速度随地热水温度的升高而增大.
- 地热水 /
- 镀锌钢管 /
- 温度 /
- 腐蚀 /
- 结垢
Abstract: Steel pipe corrosion and scaling is a universal problem in the geothermal water environment. Scanning electron microscopy (SEM), energy dispersion spectrometry (EDS) and X-ray diffraction (XRD) were used to study the corrosion and scaling behavior of galvanized steel pipe in a simulated geothermal water environment with different temperatures. Results indicate that there are two kinds of microcosmic appearance ("ball" like and "needle" like) on the surface of galvanized steel pipe in the forepart of experiment. The shape of corrosion and scaling crystals is different at different temperatures. The main components of corrosion and scaling products are Zn(OH)₂,ZnO,CaCO₃ and MgCO₃, and they could restrain the further corrosion of galvanized steel pipe in the geothermal water. The area of corrosion pit of galvanized steel pipe is small at 50℃, and which is big at 65℃ and 80℃. The corrosion and scaling of galvanized steel pipe accelerates as the temperature increases.
- geothermal water /
- galvanized steel pipe /
- temperature /
- corrosion /
- scaling

HTML全文

参考文献(1)

[1] 王宏伟,李亚峰,林豹,等.地热供热系统的结垢问题初探[J].辽宁化工,2002,31(10):419-420 Wang Hongwei,Li Yafeng,Lin Bao,et al.Discussion on the problems about encrustment in geothermal heating system[J].Liaoning Chemical Industry,2002,31(10):419-420(in Chinese) [2] 王宏伟,屠宝峰,林豹,等.地热供热系统的腐蚀问题初探[J].辽宁化工,2003,32(7):300-301 Wang Hongwei,Tu Baofeng,Lin Bao,et al.Discussion of the problem about corrosion in geothermal heating system[J].Liaoning Chemical Industry,2003,32(7):300-301(in Chinese) [3] 赵金平,王心义,韩鹏飞,等.河南省东部平原地热水结垢与腐蚀评价及防护技术的研究[J].福州大学学报:自然科学版,2004,32(1):118-122 Zhao Jinping,Wang Xinyi,Han Pengfei,et al.Evaluation on geothermal water of scaling and corrosion of eastern plain in Hennan province and research on protecting technology[J].Journal of Fuzhou University:Nature Science Edition,2004,32(1):118-122(in Chinese) [4] Pgtzay G,Stahl G,Karman F H,et al.Modeling of scale formation and corrosion from geothermal water[J].Electrochimica Acta,1998,43:137-147 [5] Stahl G,Patzay G,Weiser L,et al.Study of calcite scaling and corrosion processes in geothermal systems[J].Geothermics,2000,29:105-119 [6] Valdez B,Schorr M,Quintero M,et al.Corrosion and scaling at Cerro Prieto geothermal field[J].Anti-Corrosion Methods and Materials,2009,56(1):28-34 [7] 吴坤湖,李卫平,刘慧丛,等.模拟地热水环境中304不锈钢管材的结垢与腐蚀电化学行为[J].北京科技大学学报,2009,31(10):1263-1269 Wu Kunhu,Li Weiping,Liu Huicong,et al.Scaling and electrochemical corrosion behavior of 304 stainless steel pipes in a simulated geothermal water environment[J].Journal of University of Science and Technology Beijing,2009,31(10):1263-1269(in Chinese) [8] 蔡培培,李卫平,朱立群,等.模拟地热水中碳钢和镀锌钢管的腐蚀结垢规律[J].腐蚀与防护,2009,7(30):454-458 Cai Peipei,Li Weiping,Zhu Liqun,et al.Corrosion and scaling on carbon steel and galvanized steel pipe in simulated geothermal water[J].Corrosion and Protection,2009,7(30):454-458(in Chinese) [9] 林培滋,黄世煌,初惠萍,等.碳酸钙结垢及聚合物的影响研究[J].石油与天然气化工,1997,26(4):232-234 Lin Peizi,Huang Shihuang,Chu Huiping,et al.Study on calcium carbonate scale formation and the effect of polymer[J].Chemical Engingeering of Oil and Gas,1997,26(4):232-234(in Chinese)

施引文献

资源附件(0)

访问统计