Convex submarine cable protection pipe

Abstract

The invention discloses a convex submarine cable protection pipe which comprises a chain structure formed by meshing at least two sections of submarine cable protection pipe modules, and each sectionof submarine cable protection pipe module is of a half type structure and is formed by matching two symmetrical single structure units. A plurality of blind holes are symmetrically formed in the buttjoint faces of the two sides of each single structure unit, positioning pins are inserted into the blind holes, a plurality of grooves are formed in the outer surfaces of the single structure units, and steel strips are placed in the grooves. Each single structure unit comprises a head part, a main body and a tail part, two adjacent single structure units are mutually matched and connected throughan outer convex ring and an inner groove, and a submarine cable is arranged in the single structure units. And the outer surface of the convex submarine cable protection pipe is provided with a plurality of convex structures. The convex structures can reduce the swing amplitude of the submarine cable and prolong the service life; the convex structures are matched with the polyurethane material, so that collision energy can be effectively absorbed, and the submarine cable is protected from being damaged by collision; the material has excellent wear resistance, tear resistance and corrosion resistance at the same time, and the internal submarine cable is protected for a longer time.

Description

technical field [0001] The invention relates to an outwardly convex submarine cable protection tube, in particular to the protection of the outer layer of the submarine cable, which can effectively protect the submarine cable from abrasion and impact damage. Background technique [0002] Submarine cables are key energy transmission and information channels at sea. The routing of submarine cables often passes through rock sections. Under the action of the marine environment, submarine cables will constantly rub against rocks and be damaged; they may also be hit by foreign objects. Damage occurs, in which case the submarine cable needs to be protected. The existing polyurethane protection tubes in China have relatively thick wall thickness, large amount of materials, high cost, and lack of effective anti-skid measures. In order to reduce the cost without reducing the protection effect, it is necessary to invent a convex submarine cable protection tube. Contents of the invent...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to overcome the above-mentioned shortcomings existing in the prior art, and to provide a protective tube with a convex structure on the outer surface. The protruding structure in the form of blocks is a form of thin tube wall combined with outer bumps, which can save materials, reduce costs, and not reduce the protection effect: the outer bumps can effectively improve the coefficient of friction with the rock and increase the friction force, thereby reducing the swing range of the submarine cable and reducing the wear of the protective tube; the raised structure increases the equivalent wall thickness of the protective tube, which effectively resists wear and damage in contact with rocks; at the same time, the thicker wall thickness can buffer the fall In terms of construction, the protection tube adopts the half-open unit structure of Huff type, and the blind hole on the side of the unit is inserted into the positioning pin, so that the symmetrical units will not be misaligned to achieve preliminary cooperation; The steel belt is fastened and fixed to realize the close fit of the symmetrical unit; the structure is light and can be installed quickly; the material is made of high-elastic polyurethane material, which is soft and can be bent, and the submarine cable can easily pass through the arc-shaped launching plate when laying; It has excellent wear resistance, tear resistance and corrosion resistance, which can further improve the service life and protect the internal submarine cable for a long time

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