|
| Corrosion Failure Causes of Ship Seawater Piping Based on Fault Tree Theory and Its Application |
| |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.04.008 |
| KeyWord:seawater piping B10 pipe fault tree analysis corrosion failure corrosion prevention |
| Author | Institution |
| YAO Lei |
Marine Design and Research Institute of China, Shanghai , China |
| TANG Xiao-dong |
Marine Design and Research Institute of China, Shanghai , China |
| FU Yun-peng |
Marine Design and Research Institute of China, Shanghai , China |
| WANG He-yuan |
Marine Design and Research Institute of China, Shanghai , China |
| WU Yu-zeng |
Marine Design and Research Institute of China, Shanghai , China |
|
| Hits: |
| Download times: |
| Abstract: |
| There are various causes of corrosion in the seawater pipeline system of a ship. Its analysis and locating is essential for controlling corrosion. Focusing on the frequent perforation leakage of B10 seawater pipeline of a certain plate cooler and based on the fault tree analysis theory, factors that may lead to perforation and leakage of the seawater pipeline were listed as the bottom events, in terms of corrosion environment, corrosion morphology and corrosion mechanism of the seawater pipeline. The fault tree model of the faulty pipeline mentioned above was then built through logical linkage of the events. After analyzing the causes and typical performance of each bottom event of the fault tree one by one, the cause of the fault was located as the occurrence of electro-chemical corrosion between the B10 pipeline and the titanium alloy plate of the cooler. A principle reproduction was carried out to verify the correctness of the analysis. Finally, solutions including the addition of electrical insulation components were proposed, which achieved satisfying results after implementation on the ship. This analysis method can provide reference for analyzing, locating, treating and preventing corrosion of seawater pipelines for all kinds of ships. |
| Close |
|
|
|