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    • 10. 发明公开
    • A MARINE CATHODIC PROTECTION SYSTEM
    • KATHODISCHES MEERESSCHUTZSYSTEM
    • EP3020851A1
    • 2016-05-18
    • EP15193584.8
    • 2015-11-09
    • Rolls-Royce plc
    • Lambourne, AlexisCallow, Leslie
    • C23F13/06C25C3/10C25C7/06
    • C23F13/20B63B59/04C23F13/06C23F13/10C23F13/14C23F13/16C23F2213/21C23F2213/31C23F2213/32C25C3/10C25C7/06
    • There is proposed a marine cathodic protection system (29) configured to protect a metal structure (15, 17) exposed to seawater from corrosion. The system (29) comprises a first anode (30) provided on or adjacent the protected metal structure (17) at a first position (31). The first anode (30) is exposed to seawater, is electrically insulated from the protected metal structure (15,17), and is formed of a metal having a greater negative potential than the protected metal. The system (29) further comprises a second anode (33) provided on or adjacent the protected metal structure (15) at a second position (34). The second anode (33) is electrically connected to the first anode (30). Said first position (31) is preferably substantially submerged in said seawater such that the protected metal (17) and the first anode (30) cooperate to define a seawater battery configured to apply an electrical current to the second anode (33), the second anode (33) thus being an impressed current anode.
    • 提出了一种船用阴极保护系统(29),其构造成保护暴露于海水中的金属结构(15,17)免受腐蚀。 系统(29)包括在第一位置(31)处设置在或邻近受保护金属结构(17)上的第一阳极(30)。 第一阳极(30)暴露于海水,与受保护的金属结构(15,17)电绝缘,并且由具有比受保护金属更大的负电位的金属形成。 系统(29)还包括在第二位置(34)处设置在或邻近受保护金属结构(15)上的第二阳极(33)。 第二阳极(33)电连接到第一阳极(30)。 优选地,所述第一位置(31)基本上浸没在所述海水中,使得受保护的金属(17)和第一阳极(30)协作以限定被配置为向第二阳极(33)施加电流的海水电池, 阳极(33)因此是外加电流阳极。