A submarine cable center positioning protection device

Abstract

The invention discloses a centralized positioning protector of a submarine cable, which comprises a shell body and a clamp, wherein the shell body comprises two symmetrical parts, the head part is a conical structure, the middle part is a cylindrical section, and an installation raised part is disposed on the tail part; a center hole A is disposed inside the shell body, an installation groove is disposed inside the cylindrical section, and a plurality of bolt holes A are disposed in side faces of the two symmetrical parts of the shell body; the clamp comprises two symmetrical parts with a semi-cylindrical structure, the clamp is embedded in the installation groove of the shell body, and a center hole B is disposed inside the clamp; bolt holes B are disposed in two symmetrical side faces of the clamp, and the two symmetrical parts of the clamp are connected by bolts in the bolt holes B; and installation clearance is disposed between the semi-cylindrical structures of the two symmetrical parts of the clamp. The centralized positioning protector of the submarine cable disclosed by the invention can limit the submarine cable of a lower port section of a protective tube at the center of the protective tube, can effectively control swaying of the submarine cable in the protective tube, can prevent collision between the submarine cable and the rigid protective tube, and can avoid a fatigue failure of the submarine cable generated from long-term effects of ocean currents. The centralized positioning protector of the submarine cable is simple in structure, convenient in installation, high in reliability and long in service life.

Description

Technical field [0001] The invention relates to a submarine cable center positioning protection device, in particular to a submarine cable center positioning protection device suitable for central positioning protection of oil platforms and offshore wind power submarine cables in protective pipes. Background technique [0002] International submarine cables, also known as international submarine communication cables, are wires wrapped in insulating materials and laid on the seabed to establish telecommunications transmission between countries. Submarine communication cables are mainly used for long-distance communication networks, usually between long-distance islands, cross-sea military installations and other important occasions. The laying distance of submarine power cables is much shorter than that of communication cables. They are mainly used between land islands, crossing rivers or harbors, connecting drilling platforms on land or interconnecting drilling platforms, etc. U...

AI Technical Summary

Problems solved by technology

Therefore, the submarine cable will swing freely in the protective tube, especially at the outlet of the lower end of the protective tube, where the submarine cable is most severely affected by the ocean current. Fatigue and breakage of the cable causes the cable to be unable to transmit power, and eventually leads to the paralysis of the entire power system, resulting in huge economic losses

At present, the commonly used protection method is to use heavy objects to press the submarine cable out of the protective tube to prevent the movement of the submarine cable. This method can effectively control the movement of the submarine cable in a short period of time, but under the action of long-term ocean currents, the heavy objects will be washed away. The submarine cable can swing freely

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