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| Design and Performance Research of New Type Sacrificial Anode for Marine Engineering (Ⅳ)—Application of Cathodic Protection of Jacket Platform |
| Received:January 19, 2018 Revised:March 15, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2018.03.003 |
| KeyWord:marine engineering cathodic protection sacrificial anode new type anode |
| Author | Institution |
| LIU Fu-guo |
Design Company of Offshore Oil Engineering Co. Ltd, Tianjin , China; |
| ZHANG Wei |
1.Qingdao NCS Testing and Protection Technology Co. Ltd, Qingdao , China; 2.Qingdao Research Institute for Marine Corrosion, Qingdao , China |
| WANG Xiu-tong |
Institute of Oceanology Chinese Academy of Sciences, 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 |
| HUANG Zhi-qiang |
Design Company of Offshore Oil Engineering Co. Ltd, Tianjin , China; |
| ZHANG Guo-qing |
Design Company of Offshore Oil Engineering Co. Ltd, Tianjin , China; |
| HAN Bing |
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, China Iron and Steel Research Institute Group, Beijing , China |
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| Abstract: |
| Objective To design a new type sacrificial anode by configuration optimization to increase the current output in the initial stage when it has the similar quality to that of conventional anode, to rapidly polarize the cathode to the protection interval. In the late stage, the current is going to be reduced, to meet the needs of the average and the end protection current demand, and achieve the purpose of saving sacrificial anode. Methods Two wings were added in both sides of the traditional anode, to reduce the water-resistance and increase the initial current. The rapid dissolution of the wings reduced the surface area rapidly and also the current output. Results For new type anode with similar qualities with the conventional anode, the initial current outputs increased by more than 30%, much higher than the designed value of 10%. After the initial polarization, the current outputs of the new type anode were rapidly reduced to the level equivalent to the conventional anode. Conclusion According to the test results, the cathodic protection design of jacket platform can achieve the purpose of saving sacrificial anode. |
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