-
-
-
-
-
Culture Responsibility
-
-
Offshore wind power foundation ICCP system
System introduction
Impressed current cathodic protection system for offshore wind power
The impressed current cathodic protection system for offshore wind power is divided into impressed current cathodic protection system for single pile and jacket foundation.
The impressed current cathodic protection system of the jacket foundation is installed in tension mode:
The auxiliary anode and reference electrode in the cathodic protection system are integrated on the composite cable with load-bearing wire rope, and the integrated installation of the composite cable-electrode system on the jacket foundation is realized through the tensioning device. The structure is safe and reliable, and can withstand the impact of 100-year storm surge;
The impressed current cathodic protection system of single pile foundation adopts fixed installation mode:
The auxiliary anode and reference electrode in the cathodic protection system are installed on the offshore wind power foundation or cage structure through the flange base.
The unified design of the power supply equipment adopts the multi-channel cathodic protection power controller. Each group of power modules and a single group of auxiliary anodes correspond to each other to achieve distributed independent control and realize the distributed regulation of the output current of the auxiliary anodes, especially for complex infrastructure.
Basic principle
▎Corrosion characteristics of marine environment
♦ Cathodic protection technology is a kind of electrochemical protection technology. Its principle is to apply an applied current to the surface of the corroded metal structure, and the protected structure becomes a cathode, so that the electronic migration of metal corrosion can be inhibited, and the occurrence of corrosion can be avoided or weakened.
♦ Cathodic protection includes impressed current cathodic protection and sacrificial anode cathodic protection.
Corrosion it is a destructive corrosion caused by chemical or electrochemical reaction between metal and surrounding environment.
The marine environment is highly corrosive, leading to serious corrosion of marine structures, affecting the durability and safety of the overall structure.
Product parameters
▎Performance parameters and quantity of auxiliary anode
▎Performance parameters and quantity of reference electrode
▎Multiway controller parameters
Product characteristics
▎The basic ICCP system of offshore wind power has the following significant technical advantages
♦ Each power module is independent, complementary and interchangeable, and can be expanded according to design requirements;
♦ Built-in closed-loop control algorithm for real-time monitoring and output control;
♦ Intelligentized independent control output to achieve fine control;
♦ Adopt standardized drawer design and push-pull installation/disassembly technology;
♦ It is convenient for online replacement/maintenance and improves the efficiency of on-site maintenance.
♦ Numerical simulation optimization design and verification
♦ Distributed multi-channel control power supply device
♦ Cathodic protection data management platform realizes monitoring and prediction
♦ Full-life operation and maintenance management and technical support
▎New project
>Disk type auxiliary anode product and composite double reference electrode
>Classification society type approval
>Calculation of hydrodynamic force, structural strength and fatigue strength
>Verification of water tightness and insulation test
>Adaptability and reliability under severe sea conditions
▎Project in service
>Tension-type auxiliary anode product and composite double reference electrode
>Classification society type approval
>Calculation of hydrodynamic force, structural strength and fatigue strength
>Verification of water tightness and insulation test
>Adaptability and reliability under severe sea conditions
>Composite tension installation structure, easy to install
>It can be disassembled and replaced in the later stage, with less underwater operation
Application performance
▎Yancheng Guoneng Dafeng H5-2 offshore booster station jacket ICCP system
◎ Application case: Guoneng Dafeng H5-2 booster station jacket ICCP system
◎ Start time: August 2020 (put into operation)
◎ System features: integrated design of disc MMO auxiliary anode, anode and reference electrode
Solution for impressed current of offshore wind power pile foundation<1>numerical simulation
▎Numerical simulation technology for cathodic protection of offshore wind power pile foundation
◎ Customized design for different pile foundation structures
◎ Cathodic protection boundary element numerical simulation technology
◎ Calculation of impressed current cathodic protection potential distribution
◎ Calculation of cathodic protection potential distribution of sacrificial anode
◎ Optimal design of cathodic protection for complex stressed structures
◎ 3D visualization of structural cathodic protection effect
Applied current solution for offshore wind power pile foundation<2.1>tensioned ICCP
▎Advantages of tensioned impressed current cathodic protection system for offshore wind power
◎ Numerical simulation optimization design and verification
◎ Distributed multi-channel control power supply device
◎ Compound tension installation structure, easy to install
◎ It can be disassembled and replaced in the later stage, and underwater operation is less
◎ Cathodic protection data management platform realizes monitoring and prediction
◎ Full-life operation and maintenance management and technical support
Applied current solution for offshore wind power pile foundation<2.2>fixed ICCP
▎Fixed ICCP system electrode
Address: Tangli Industrial Park, Hongqi Street, Ganjingzi District, Dalian
Tel：139-4097-0227
Email：wangmei@kingmile.com
Copyright © 2022 Dalian Kingmile Anticorrosion Technology Co.,Ltd.