| 陈亚林,郑志建,王琦,黄卫国,庄则敬,尹鹏飞,张杰.锌合金高温阳极在FPSO工艺水舱的性能研究[J].装备环境工程,2023,20(8):24-29. CHEN Ya-lin,ZHENG Zhi-jian,WANG Qi,HUANG Wei-guo,ZHUANG Ze-jing,YIN Peng-fei,ZHANG Jie.Performance of Zinc Alloy High Temperature Anode in FPSO Process Water Tank[J].Equipment Environmental Engineering,2023,20(8):24-29. |
| 锌合金高温阳极在FPSO工艺水舱的性能研究 |
| Performance of Zinc Alloy High Temperature Anode in FPSO Process Water Tank |
| 投稿时间：2023-03-24 修订日期：2023-06-26 |
| DOI：10.7643/issn.1672-9242.2023.08.004 |
| 中文关键词: 锌合金 高温阳极 工艺水舱 电化学性能 阴极保护中图分类号:TG172 文献标识码:A 文章编号:1672-9242(2023)08-0024-06 |
| 英文关键词:zinc alloy high temperature anode process water tank electrochemical performance catholic protection |
| 基金项目:青岛市关键技术攻关及产业化示范类项目(23-1-3-hygg-9-hy) |
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| Author | Institution |
| CHEN Ya-lin | Qingdao NCS Testing and Protection Technology Co., Ltd., Shandong Qingdao 266071, China |
| ZHENG Zhi-jian | Qingdao NCS Testing and Protection Technology Co., Ltd., Shandong Qingdao 266071, China |
| WANG Qi | Marine Science Research Institute of Shandong Province, Shandong Qingdao 266104 |
| HUANG Wei-guo | Tianjin Branch of CNOOC China Co., Ltd., Tianjin 300450, China |
| ZHUANG Ze-jing | Qingdao NCS Testing and Protection Technology Co., Ltd., Shandong Qingdao 266071, China |
| YIN Peng-fei | Qingdao NCS Testing and Protection Technology Co., Ltd., Shandong Qingdao 266071, China |
| ZHANG Jie | Qingdao NCS Testing and Protection Technology Co., Ltd., Shandong Qingdao 266071, China |
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| 中文摘要: |
| 目的 研究船东指定型号的锌合金牺牲阳极在模拟工艺水舱环境中的电化学性能。方法 参照NACE TM 0190—2012中的电化学测试方法，测试该锌合金阳极在不同模拟环境下的工作电位、电化学容量等，结合舱壁材料的动电位极化测试，评估该阳极在工艺水舱环境中的电化学性能，以及是否满足舱壁阴极保护的要求。结果 在55 ℃模拟溶液中，阳极的工作电位、电化学容量等测试结果均比较满意，所有指标均达到了NACE标准中对锌合金阳极在常温环境中的要求。测试温度为80 ℃时，试样的电化学容量略有下降，工作电位明显正移。环境温度对舱壁材料也产生了明显影响，高温下舱壁试样的自腐蚀电位负移，同时自腐蚀电流增加。结论 在55 ℃的工艺水舱环境下，该锌合金高温阳极满足舱壁的阴极保护需求，但在80 ℃的舱室极限高温下，该阳极不宜长期服役，有欠保护的风险。此外，在实际中，建议定期监测涂层状态和阴极保护电位。 |
| 英文摘要: |
| The work aims to study the electrochemical performance of zinc alloy sacrificial anode provided by shipowner in simulated process water tanks. According to the electrochemical test method in NACE TM 0190-2012, the working potential and electrochemical capacity of the zinc alloy anode were tested in different simulated environments. Combined with the potentiodynamic polarization test of the bulkhead material, the electrochemical performance of the anode in the process water tank, and whether it met the requirements of cathodic protection were evaluated. The working potential and electrochemical capacity of the anode samples in 55 ℃ simulated solution were satisfactory. All the indexes met the requirements of NACE TM 0190-2012 for zinc alloy anode in normal temperature environment. When the test temperature was 80 ℃, the electrochemical capacity of the samples decreased slightly, and the working potential were significantly positively shifted. The environmental temperature also had an obvious effect on the bulkhead material. At high temperature, the self-corrosion potential of bulkhead samples were negatively shifted, and the self-corrosion current were increased. In 55 ℃ process water tank environment, the zinc alloy anode meets the need of cathodic protection of bulkhead. However, at the extreme high temperature of 80 ℃, the anode is not suitable for long-term service. There is a risk of insufficient protection. In addition, in practice, regular monitoring of the coating status and cathodic protection potential is recommended. |
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