A marine atmospheric zone environment steel structure cathodic protection device and method

CN117604532BActive Publication Date: 2026-05-29CCCC FOURTH HARBOR ENG INST CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CCCC FOURTH HARBOR ENG INST CO LTD
Filing Date
2023-12-25
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing technologies cannot effectively protect steel structures in marine atmospheres, leading to accelerated corrosion, especially at the point of coating damage where a "large cathode and small anode" phenomenon occurs, affecting the durability and maintenance costs of the steel structure.

Method used

Combining sacrificial anode cathodic protection technology and impressed current cathodic protection technology, a cathodic protection device for steel structures in marine atmospheric environments is formed, including a shell, bolt base, contact head mechanism, control system, reference electrode, sacrificial anode cathodic protection module, and impressed current cathodic protection module, thus achieving protection of the steel structure.

Benefits of technology

It effectively prevents localized corrosion of steel structures, extends service life, reduces maintenance costs, is portable and easy to install, and has self-powered and early warning functions, thus improving the maintenance efficiency and stability of steel structures in atmospheric areas.

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Abstract

The application discloses a kind of marine atmospheric zone environment steel structure cathodic protection device and method, the device includes shell, bolt base, contact head mechanism, control system, reference electrode, sacrificial anode cathodic protection module and impressed current cathodic protection module;Sacrificial anode cathodic protection module includes sacrificial anode, electrolyte layer and electrolyte tank, the lower end of contact head mechanism is fixedly arranged at the upper end of sacrificial anode, the upper end of contact head mechanism is connected with steel structure, electrolyte layer is arranged between sacrificial anode and the steel structure to be protected, and sacrificial anode is connected with steel structure by electrolyte layer;Impressed current cathodic protection module includes anode platinum sheet, lithium battery and solar panel;Control system selects sacrificial anode or lithium battery to be protected steel structure and carries out power supply to implement cathodic protection according to lithium battery electric quantity and the potential difference of steel structure and reference electrode.The application can effectively protect the steel structure in marine atmospheric zone environment, and improve the service life of steel structure.
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