Monitoring device for sea platform sacrificial anode generation current flow

Abstract

The sacrificial anode current monitoring device for ocean platform includes one anode with two stretched ends and two metal flanges welded separately through connecting pipe to the ends, the ocean platform acting as the cathode with two metal flanges welded separately through connecting pipes and corresponding separately to the anode flanges, insulating plates set separately between two paired flanges, insulating casings set inside the installing holes in the flanges, insulating spacers and steel spacers in the outer sides of the flanges, and one high precision ultra low resistance standard resistor connected electrically across the flanges. The sacrificial anode current monitoring device is applied in monitoring the real-time current of the anode in ocean platform, and may be applied widely in anticorrosion of ferrous material.

Description

technical field [0001] The invention relates to a monitoring device, in particular to a monitoring device for current emitted by a sacrificial anode of an ocean platform. Background technique [0002] In offshore oil extraction, offshore platforms are generally made of steel, and seawater is highly corrosive to steel. In order to protect steel from corrosion, it is generally protected by lowering the potential of the steel. The commonly used methods include external current and sacrificial anodes, etc., and the method of sacrificial anode cathodic protection is more commonly used. The material of the sacrificial anode is usually aluminum-based alloy or zinc-based alloy. The amount of sacrificial anode is generally determined by calculation according to the design parameters. The actual current emitted by the sacrificial anode on the offshore platform is one of the very important design parameters. It is a means to obtain the current from the sacrificial anode, so the value ...

AI Technical Summary

Problems solved by technology

The material of the sacrificial anode is usually aluminum-based alloy or zinc-based alloy. The amount of sacrificial anode is generally determined by calculation according to the design parameters. The actual current emitted by the sacrificial anode on the offshore platform is one of the very important design parameters. The means to obtain the current from the sacrificial anode, so the value is basically based on experience

For the sake of insurance, the value range is usually relatively conservative, which will increase the cost of the platform, generate greater waste, and is not conducive to environmental protection

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