Welding-free subsea pipeline sacrificial anode device

Abstract

The invention discloses a welding-free subsea pipeline sacrificial anode device. The welding-free subsea pipeline sacrificial anode device comprises an inversed-U-shaped body, an arc-shaped pipe clamp, a probe, an anode block and a locking mechanism, wherein the arc-shaped pipe clamp, the probe, the anode block and the locking mechanism are arranged on the inversed-U-shaped body; the probe is electrically connected with the anode block, the inversed-U-shaped body is composed of two transverse beams and supporting legs arranged below the two ends of the transverse beams, a top plate is connected between the two transverse beams, the arc-shaped pipe clamp and the probe are arranged below the top plate in a vertically-adjusted manner, locking block mechanisms are oppositely arranged on the inner sides of the lower ends of the supporting legs, a columnar space capable of clamping a subsea pipeline is formed among the locking block mechanisms and the arc-shaped pipe clamp, a jetting channel with the lower end extending to the lower end of the probe is arranged in the probe in a penetrating manner, and the upper end of the jetting channel is used for being connected with a water torch. The welding-free subsea pipeline sacrificial anode device is simple in structure and easy and convenient to use and operate, the working difficulty is reduced, and operation risks are reduced; the preservative effect of the subsea pipeline can be improved, and the service life of the subsea pipeline is prolonged; and by means of the device, the time limit for an on-sea project can be shortened, the project cost is greatly reduced, and occupation time of construction ships and platform resources is shortened.

Description

technical field [0001] The invention relates to a sea pipe anticorrosion device, in particular to a welding-free sea pipe sacrificial anode device. Background technique [0002] At present, the main anti-corrosion methods for sea pipes with damaged counterweight layer and anti-corrosion layer include winding anti-corrosion tape and installing anode blocks. The methods of installing anodes on sea pipes mainly include welding and installation with pipe clamps. Underwater welding is difficult, costly, and may cause potential damage to sea pipes. However, the use of pipe clamps for installation requires divers to install and operate, with many procedures and high construction costs. In addition, the surface of the sea pipe is often attached with weight layer, anti-corrosion layer or marine organisms and other attachments. When installing the anode, it is necessary to remove the surface attachments of the sea pipe to realize the electrical connection between the anode and the me...

AI Technical Summary

Problems solved by technology

The methods of installing anodes on sea pipes mainly include welding and installation with pipe clips. Underwater welding is difficult, costly, and may cause potential damage to sea pipes, etc.

However, the use of pipe clips requires divers to install and operate, and there are many procedures and high construction costs.

In addition, the surface of the sea pipe is often attached with weight layer, anti-corrosion layer or marine organisms and other attachments. When installing the anode, it is necessary to remove the surface attachments of the sea pipe to realize the electrical connection between the anode and the metal layer of the sea pipe. However, the cleaning work Difficult to operate underwater

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