Auxiliary anode assembly for cathode protection of ice breaker

Abstract

The invention provides an auxiliary anode assembly for cathode protection of an ice breaker, and belongs to the technical field of electrochemistry. The auxiliary anode assembly comprises an anode body, a conductive rod, an anode bracket and a perforated protective cover. The anode bracket is made from insulating materials, and the anode body is arranged in the anode bracket. The conductive rod isconnected to the back of the anode body and used for electric connection of a cable and the anode body. The perforated protective cover is made from insulating materials, is fixed on the top of the anode bracket, and is sealed and fixed to the anode bracket. A boron-doped diamond intermediate layer is deposited on a titanium substrate in advance, so that the stability and the mechanical abrasionresistance of the anode body are remarkably improved. The anode bracket is matched with the rigid insulation perforated protective cover to physically isolate the anode body from floating ice, so thatmechanical damage is not likely to occur, effective discharge of cathode protection current is guaranteed, and the auxiliary anode assembly can reliably work for a long time in an ice navigation process, is suitable for an impressed current cathode protection system of a polar navigation ship, and is used for preventing seawater corrosion of a ship shell, a rudder plate and a propeller.

Description

technical field [0001] The invention relates to an auxiliary anode assembly for cathodic protection of an icebreaker, which is suitable for an impressed current cathodic protection system of a ship navigating in polar regions, and is used to prevent seawater corrosion of the hull, rudder plate and propeller propeller, and can also be used for offshore wind power, floating platforms, The corrosion control of metal structures such as pump ships belongs to the field of electrochemical technology. Background technique [0002] At present, the combination of coating protection and cathodic protection technology is widely used at home and abroad to solve the seawater corrosion problem of ships. According to the different ways of providing protective current, cathodic protection is divided into two methods: sacrificial anode protection and impressed current cathodic protection. Impressed current cathodic protection technology has become an essential and important protective measure...

AI Technical Summary

Problems solved by technology

The meteorological conditions and sea conditions of polar navigation are extremely harsh, involving low temperature, high salinity, sea ice, blizzard, etc. After the icebreaker breaks through the thicker ice layer, the sea surface quickly condenses the thinner ice layer. Ice and floating ice have serious friction and wear on the surface of the auxiliary anode, which can easily lead to mechanical damage

Patent CN1844454A discloses an auxiliary anode assembly for cathodic protection of ships, which is suitable for installation on hull parts with small curvature radius, and has the characteristics of long service life, good stability and easy installation, but the anode body is not isolated and protected, and is directly connected to the Contact with seawater ice floes is prone to local mechanical wear, resulting in a decrease in anode discharge flow, which cannot meet the design requirements of cathodic protection

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