Apparatus and method for laying and retrieving cables

Abstract

The invention relates to a device and method for laying and recovering cables. The device includes: buoys, steel cables and suspension parts. The upper part of the buoy is equipped with a cable storage reel, and the interior is provided with a cable outlet pipe; one end of the steel cable is wound and fixed on the cable storage reel, and the other end passes through the cable outlet pipe and is fixedly connected with the suspension part. Connected to the steel cable, the suspension part clamps and fixes the cable in the through hole. The method includes: determining the initial distance between the suspension part and the equipment platform according to the catenary line analysis and calculation formula; putting the buoy, the suspension part and the cable into the water at the position of the initial distance from the equipment platform by the crane; Sailing in a straight line at low speed in the same direction; the cable winch continuously releases the cable with the movement of the cable laying ship. The device and the method can quickly and conveniently lay cables, and at the same time can effectively recycle the cables for reuse, thereby greatly reducing costs and improving economic benefits.

Description

technical field [0001] The invention relates to the technical field of marine engineering, in particular to a device and method for laying and recovering cables. Background technique [0002] As ocean development projects move from shallow seas to deep seas, the difficulty of laying cables for deep-water equipment also increases. To be able to work underwater, deep-water equipment needs cables to transmit data signals and power signals. The speed and convenience of cable laying and recovery Greatly affected the working conditions of deepwater equipment. [0003] There are two commonly used cable laying methods. The first method: laying the cables at the bottom of the water and burying them in the mud layer, because this method needs to work and lay the cables underwater, which leads to a large workload and high process requirements, and the cables cannot be recycled, resulting in higher cost. The second method: use a lot of water surface buoys to fix on the cable at inter...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a device and method for cable deployment and recovery, which solves the technical problems of heavy cable deployment and unfavorable cable recovery in the prior art, realizes fast and convenient cable deployment, and can simultaneously Effectively recycle cables for reuse, greatly reducing costs and improving economic benefits

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