Metal oxide anode assembly for cathode protection of ship

Abstract

This invention relates to a shipping cathode protective metal oxide anode assembly, which is composed of anode, conducting bar, insulating bracket and fixing frame, the anode uses titanium as base, which assumes disc shape, the working surface is coated with ceramic compound metal oxide conducting coat, the opposite side is welded with conducting pole with solid titanium bar or copper core compound titanium bar, the anode bracket uses glass fiber to reinforce epoxy resin compound material and shape by thermoforming, the anode is pressed tightly by fixing frame and fixed by bolt, and the fixing frame is made by using corrosion-resistance polymer material. The ship with assistant anode assembly is fit for installing at the part whose curvature half-diameter is shorter, which has well electrochemical capability, not easy to damage, and can work long; and it has long life and well stability.

Description

Technical field: [0001] The invention relates to a metal oxide anode assembly, which is suitable for the applied current cathodic protection system of ships, and is used to prevent seawater corrosion of ship hulls, rudder plates, and propeller propellers, and can also be used to prevent metal oxides such as floating docks, barges, and hydraulic gates. The invention relates to corrosion of structures, specifically a metal oxide anode assembly for ship cathodic protection belonging to the technical field of electrochemical protection. technical background: [0002] The combination of cathodic protection and coating can effectively prevent the corrosion of metal structures such as ships in seawater. According to different methods of providing protective current, cathodic protection can be divided into two methods: sacrificial anode and impressed current. The sacrificial anode method is to generate cathodic protection current by connecting the electronegative anode material to ...

AI Technical Summary

Problems solved by technology

Polyvinyl chloride, nylon, laminated phenolic glass steel, etc. have been used as the material of the anode insulation bracket. These materials are prone to aging, unstable performance, and failure when they work for a long time.

[0006] Impressed current cathodic protection systems for ships often use strip-shaped auxiliary anode components, some of which can even reach several meters in length. Although it can reduce the water connection resistance, it cannot be installed on parts of the hull with large curvature such as the bow or stern, and Because these parts are in contact with the copper propeller or the coating is easily damaged, a large protective current is often required, so the auxiliary anode assembly should be installed in these parts as much as possible

In addition, because the auxiliary anode assembly is directly installed on the outer surface of the hull, it not only affects the streamline of the hull, but is also vulnerable to mechanical damage such as collisions, especially for ships sailing in ice regions

Images