Towing-type submarine cable cutting device and cable cutting method thereof

Abstract

The invention discloses a towing-type submarine cable cutting device and a cable cutting method of the towing-type submarine cable cutting device. The quick and low-cost submarine cable cutting deviceis needed in the prior art. A towing ring is fixed to one end of a main rod, and two wing plates are fixedly arranged at the other end of the main rod; an anchor hook is fixedly arranged on the portions, located at the symmetrical center line, of one side faces of the two wing plates, and an anchor hook is fixedly arranged on the portions, located at the symmetrical center line, of the other sidefaces of the two wing plates; cutters are correspondingly and fixedly arranged on the inner sides of the two anchor hooks, guide iron is arranged between each cutter and the two wing plates, and theguide iron and the two wing plates are fixed; and one end of an iron chain and a tension sensor fixed on a towboat are fixed, and the other end of the iron chain and an iron chain on a cutting anchorare fixed. According to the towing-type submarine cable cutting device, the towboat tows the cutting anchor through the iron chain to cut a cable, the cutting anchor directly hooks the cable at the seabed and quickly cuts off the cable, whether the cable cutting is completed or not is confirmed according to two aspects of the tension sensor and whether residual copper scraps exist on the cutters after the recovery of the cutting anchor, and the reliability is high.

Description

technical field [0001] The invention belongs to the technical field of marine engineering, and in particular relates to a towed submarine cable cutting device and a cable cutting method thereof. Background technique [0002] With the development of science and technology, more and more submarine cables and communication cables are laid on the seabed all over the world. In some emergency situations, the cables need to be cut. The traditional cutting method needs to first detect the location of the cables and then excavate them. The cable is pulled out and then salvaged for cutting. The process is complicated and requires a lot of expensive equipment, and the cost is too high. This requires a fast, low-cost submarine cable cutting device to accomplish this task. [0003] After searching the existing technical literature, it is found that the patent No. 200910039930.7 discloses a marine towed cutting device, which is a four-hook cutting device. It needs to install an underwate...

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Problems solved by technology

[0003] After searching the existing technical literature, it is found that the patent No. 200910039930.7 discloses a marine towed cutting device, which is a four-hook cutting device. It needs to install an underwater motor to supply power to the equipment. The manufacturing cost is high, and there is no judgment on the completion of cable cutting. device, it is impossible to know the completion status of the cutting operation

The document with the patent number 201310404115.2 discloses a deep-sea cable salvage cutting system and method. The anchor body is a single hook-shaped anchor body, which cannot ensure that the anchor body hooks the cable after being thrown into the seabed.

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