| 国产海水淡化装置铝黄铜换热管腐蚀调查分析 |
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| 引用本文： | 张建丽,黄桂桥,张波,吴恒.国产海水淡化装置铝黄铜换热管腐蚀调查分析[J].装备环境工程,2014,11(3):105-109. |
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| 作者姓名： | 张建丽 黄桂桥 张波 吴恒 |
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| 作者单位： | 神华国华( 北京) 电力研究院有限公司, 北京 100025;青岛钢研纳克检测防护技术有限公司, 山东 青岛 266071;钢铁研究总院 青岛海洋腐蚀研究所, 山东 青岛 266071;青岛钢研纳克检测防护技术有限公司, 山东 青岛 266071;钢铁研究总院 青岛海洋腐蚀研究所, 山东 青岛 266071;青岛钢研纳克检测防护技术有限公司, 山东 青岛 266071;钢铁研究总院 青岛海洋腐蚀研究所, 山东 青岛 266071 |
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| 摘 要： | 目的了解国产万吨级LT-MED装置铝黄铜换热管的腐蚀情况。方法通过对设备现场调研和腐蚀产物分析,对换热管的腐蚀类型和腐蚀原因进行分析,并对其腐蚀的危害性进行判断。结果铝黄铜换热管在凝结水侧发生全面腐蚀和点蚀,在海水侧主要发生轻微脱锌腐蚀。结论铝黄铜换热管在凝结水中腐蚀率很低,其全面腐蚀可以接受。换热管在凝结水侧的点蚀轻微,可对其进行定期检测。铝黄铜在海水侧的脱锌腐蚀轻微,可以忽略。换热管腐蚀程度轻微,不影响水质和设备正常运行。
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| 关 键 词： | 低温多效 海水淡化 HAl- 换热管 腐蚀 |
| 收稿时间： | 2014/1/14 0:00:00 |
| 修稿时间： | 2/1/2014 12:00:00 AM |
Corrosion Analyses of Aluminum Brass Tube Heat Exchanger in Homemade Equipment for Seawater Desalination |
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| ZHANG Jian-li,HUANG Gui-qiao,ZHANG Bo and WU Heng.Corrosion Analyses of Aluminum Brass Tube Heat Exchanger in Homemade Equipment for Seawater Desalination[J].Equipment Environmental Engineering,2014,11(3):105-109. |
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| Authors: | ZHANG Jian-li HUANG Gui-qiao ZHANG Bo and WU Heng |
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| Institution: | Shenhua Guohua( Beijing) Electric Power Research Institute Co. , Ltd, Beijing 100025, China;Qingdao NCS Testing & Corrosion Protection Technology Co. , Ltd, Qingdao 266071, China;Qingdao Research Institute for Marine Corrosion, Central Institute for Iron and Steel, Qingdao 266071, China;Qingdao NCS Testing & Corrosion Protection Technology Co. , Ltd, Qingdao 266071, China;Qingdao Research Institute for Marine Corrosion, Central Institute for Iron and Steel, Qingdao 266071, China;Qingdao NCS Testing & Corrosion Protection Technology Co. , Ltd, Qingdao 266071, China;Qingdao Research Institute for Marine Corrosion, Central Institute for Iron and Steel, Qingdao 266071, China |
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| Abstract: | Objective To understand the corrosion of aluminum brass tube heat exchanger in homemade 12 500 m3·d-1LT-MED equipment for Seawater desalination. Methods Field research and analysis methods for corrosion products were used to analyze the types and causes of corrosion. And the dangers of corrosion were judged. Results Aluminum brass tube showed mainly general corrosion and pitting in fresh water condensate, while slight dezincification corrosion mainly occurred in seawater. Conclusion Aluminum brass tube had a very low corrosion rate in fresh water condensate, and its general corrosion was acceptable. For the pitting at the side of fresh water consendate, regular testing could be performed. The slight dezincification corrosion in seawater could be neglected. The slight corrosion of tube heat exchanger did not affect the water quality and the normal operation of equipment. |
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| Keywords: | LT-MED seawater desalination HAl77-2 heat exchange tube corrosion |
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