Submarine pipeline protection system and protection method

• Main Authors: DOU XIAOHUI, ZHANG DALEI, ZHANG XINWEI, HE CHUAN, KIM HONG-HEE, HE ZONGHAO
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE

The invention belongs to the technical field of corrosion prevention of submarine pipeline systems, and particularly relates to a submarine pipeline protection system and method.The protection system comprises a sacrificial anode material, an anode ground bed and an anti-corrosion layer; sacrificial anode materials are arranged on the outer side of the submarine pipeline, the sacrificial anode materials are two arc-shaped grooves, and anode ground beds are arranged in the arc-shaped grooves. The anode ground bed is electrically connected with the anode of the power supply; the anticorrosive coating is arranged on the surface of the submarine pipeline, the service life of the submarine pipeline can be prolonged when the system is used for protecting the submarine pipeline, operability is good, and the corrosion speed of materials is reduced from three aspects of utilizing external protection current, enabling the submarine pipeline to generate cathode polarization, protecting the submarine pipeline through sac