Device for corrosion prevention of steel structure splash zone with cathode protection

Abstract

The invention discloses a device for corrosion prevention of a steel structure splash zone with cathode protection. The device is characterized by comprising a water-absorbing material layer coating the surface of the steel structure splash zone, wherein the water-absorbing material layer is fixed through hoops, and the hoops adopt hollowed-out structures. In order to solve problems that the steel structure splash zone is low in seawater immersion rate and effective corrosion prevention cannot be performed on the steel structure splash zone with common cathode protection technologies, a conductive coating technology which is relatively simple, convenient and lower in cost is provided, and the conductive coating technology is applicable to corrosion prevention of newly-built offshore steel structure splash zones with cathode protection as well as renewal and repair of existing facilities with cathode protection after corrosion.

Description

technical field [0001] The invention relates to an anticorrosion device for a steel structure with cathodic protection, in particular to a device for corrosion protection in the splash zone of the steel structure with cathodic protection. Background technique [0002] Offshore steel structures are severely corroded in the splash zone. The current protection methods mainly include heavy anti-corrosion coatings, coating metal, alloy or non-metallic materials and other methods. [0003] Heavy-duty anti-corrosion coatings mainly use passivation slow-release, cathodic protection, isolation and organic coating shielding to achieve anti-corrosion effects. The construction conditions are harsh, and once there are defects on the coating surface, it will accelerate the corrosion of the steel structure at the defect, and Corrosion is not easy to be found, and there are serious safety hazards. [0004] Coating metal, alloy or non-metallic materials mainly uses the high corrosion resist...

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Problems solved by technology

[0003] Heavy-duty anti-corrosion coatings mainly use passivation slow-release, cathodic protection, isolation and organic coating shielding to achieve anti-corrosion effects. The construction conditions are harsh, and once there are defects on the coating surface, it will accelerate the corrosion of the steel structure at the defect, and Corrosion is not easy to be found, and there are serious safety hazards

[0004] Coating metal, alloy or non-metallic materials mainly uses the high corrosion resistance of metal, alloy cathodic protection, and isolation to achieve anti-corrosion purposes. The anti-corrosion effect is better, but the construction conditions are harsh, and the construction surface needs better pretreatment. Not suitable for the repair of corroded steel structures in the sea

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