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| Design and Performance Research of New Type Sacrificial Anode Used in Marine Engineering (Ⅱ)——Experimental Study on Marine Environment of Small Size Anode |
| Received:October 13, 2016 Revised:March 15, 2017 |
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| DOI：10.7643/ issn.1672-9242.2017.03.020 |
| KeyWord:marine engineering cathodic protection sacrificial anode new type anode |
| Author | Institution |
| ZHANG Wei |
1.Qingdao NCS Testing and Protection Technology Co., Ltd., Qingdao , China; 2.Qingdao Research Institute for Marine Corrosion, Qingdao , China |
| YIN Peng-fei |
1.Qingdao NCS Testing and Protection Technology Co., Ltd., Qingdao , China; 2.Qingdao Research Institute for Marine Corrosion, Qingdao , China |
| LIU Fu-guo |
Offshore Oil Engineering Co., Ltd. Tianjin , China |
| ZHANG Guo-qing |
Offshore Oil Engineering Co., Ltd. Tianjin , China |
| YANG Zhao-hui |
1.Qingdao NCS Testing and Protection Technology Co., Ltd., Qingdao , China; 2.Qingdao Research Institute for Marine Corrosion, Qingdao , China |
| LI Xiang-yang |
Central Iron and Steel Research Institute, Beijing , China |
| WANG Qing-zhang |
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao , China |
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| Abstract: |
| Objective To design a new type sacrificial anodes to meet the demand of protective current in different periods of marine engineering steel structures and save sacrificial anodes. Methods By changing the area to weight ratios of the conventional anodes, conventional anodes and new type anodes of similar areas and qualities were designed. Comparative tests on cathodic protection in marine environment were carried out. Results For new anode of similar qualities with the conventional anode, its current outputs increased by 22% at the initial stage and 48% throughout the test; for another type new anode with area the same as conventional anode, it saved nearly 50% by mass and realized the current outputs similar to that of conventional anode. Conclusion It is feasible to increase the current outputs by increasing the area to weight ratios of conventional anodes and reducing the anode-to-electrolyte resistance. |
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