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| Design and Performance of New Sacrificial Anode for Marine Engineering (Ⅲ)—Experimental Study on Marine Environment of Middle Size Anode |
| Received:November 24, 2016 Revised:February 15, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2017.02.009 |
| KeyWord:marine engineering, cathodic protection, sacrificial anode, new 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 |
| YANG Hai-yang |
1.Qingdao NCS Testing and Protection Technology Co., Ltd., Qingdao , China; 2.Qingdao Research Institute for Marine Corrosion, Qingdao , China |
| CHEN Ya-lin |
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 |
| 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, Beijing , China |
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| Abstract: |
| Objective To design a new anode with configuration optimization to increase the current output in the initial stage, polarize the cathode protected rapidly, decrease current output in the later stage and meet the needs of the average and the end protection current demand, so as to achieve the purpose of saving sacrificial anode, under the premise of similar quality with conventional anode. Methods Two wings of optimization design were added at both sides of the traditional anode to design a new sacrificial anode. Sea test in allusion to new anode and conventional anode of medium dimension was carried out. Results Compared with the conventional anode, the current output of new anode in the initial stage increased by 11%, and then increased to 18%, which promoted the polarization of cathode to the protection potential rapidly. After the wings were completely consumed, both new anode and conventional anode were cylindrical, and their current output was equivalent. Conclusion On the premise of similar quality with conventional anode, the new anode can promote the polarization of cathode protected to the protection potential and saves sacrificial anode. |
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