Offshore wind turbine comprising impressed current cathode anticorrosion protection and monitoring device

Abstract

The invention discloses an offshore wind turbine comprising an impressed current cathode anticorrosion protection and monitoring device. The device comprises a steel structure foundation, wherein a column foot platform is arranged on the steel structure foundation; a tower is fixed on the column foot platform; a wind power main machine is arranged at the upper end of the tower; the steel structure foundation is connected with the impressed current anticorrosion protection and monitoring device; the impressed current anticorrosion protection and monitoring device comprises a monitor arranged on the column foot platform, a controllable direct current power supply, a potential measuring instrument, an auxiliary anode and a reference electrode, wherein the auxiliary anode and the reference electrode are fixed on the steel structure foundation; an anode shielding layer with a physical barrier function covers the surface of the auxiliary anode; the negative electrode of the controllable direct current power supply is connected with the steel structure foundation; the positive electrode is connected with the auxiliary anode; and the auxiliary anode is electrically connected with the steel structure foundation through a seawater medium after the circuit is communicated so as to form a closed loop. The invention aims to provide the offshore wind turbine which is provided with the impressed current cathode anticorrosion protection and monitoring device, has an electrochemical anticorrosion protection function and is convenient for implementation and maintenance.

Description

[Technical Field] [0001] The invention relates to an offshore wind turbine containing an external current cathode anti-corrosion protection and monitoring device. [Background technique] [0002] The existing anti-corrosion methods used in offshore wind turbine facilities are mainly to change the internal structure of the metal and cover the protective layer on the metal surface. The internal structure of the metal cannot be changed after installation, and because the metal facility is in seawater, the protective layer is painted again, The workload of maintenance such as electroplating is very large, and its anti-corrosion protection performance gradually deteriorates with time, and it lacks simple and convenient monitoring methods and cannot be maintained in time, resulting in a reduction in the service life and performance of metal facilities; The electrochemical protection method in anti-corrosion technology can provide long-term anti-corrosion protection for metals. The princ...

AI Technical Summary

Problems solved by technology

[0002] The anti-corrosion method used by existing offshore wind turbine facilities is mainly to change the internal structure of the metal and cover the metal surface with a protective layer. After installation, the internal structure of the metal cannot be changed, and because the metal facility is in seawater, the protective layer should be painted again. The workload of maintenance such as electroplating is very heavy, and its anti-corrosion protection performance gradually deteriorates with time, and lacks simple and convenient monitoring methods, and timely maintenance cannot be achieved, resulting in reduced service life and performance decline of metal facilities; The electrochemical protection method in anti-corrosion technology can provide long-term anti-corrosion protection for metals. Its principle is to make the metal to be protected into one electrode of the reduction reaction of the electrochemical device—the cathode, so that the source of electrochemical corrosion of the metal can be reduced. The battery reaction is eliminated, but the current technology is mainly used in the soil or metal equipment exposed to the air to prevent corrosion, and there is no good means to apply it to marine metal facilities such as offshore wind turbines, and there is a lack of effective monitoring devices to monitor. Therefore, it is necessary solve the above problems

Images