Neutral cable for deep-sea detection equipment

Abstract

The invention discloses a neutral cable for deep-sea detection equipment and relates to a special cable for oceanographic engineering, which is in particular suitable for the deep-sea detection equipment at the water depth of 500m or deeper. The neutral cable comprises a central filling core, a power unit, a control unit, an optical fiber unit, a ground wire, a filling waterproof material, a radial waterproof lapping layer, an inner sheath, an aramid reinforcing layer and an outer sheath, wherein the power unit, the control unit and the optical fiber unit are spirally stranded at the periphery of the central filling core; the ground wire is distributed in a gap among the power unit, the control unit and the optical fiber unit to form the cable core; the waterproof material is filled in a gap among the central filling core, the power unit, the control unit, the optical fiber unit and the grounding wire of the cable core; the radial waterproof lapping layer is arranged outside the cable core; the inner sheath is extruded outside the radial waterproof lapping layer; the aramid reinforcing layer is wound outside the inner sheath; and the outer sheath is extruded outside the aramid reinforcing layer.

Description

technical field [0001] The invention relates to a neutral cable for deep-sea detection equipment, which relates to a special cable for marine engineering, and is especially suitable for deep-sea detection equipment with a water depth of less than 500 meters. Background technique [0002] According to my country's definition of ocean depth, generally seawater depths greater than 500 meters are deep sea. The deep sea detection system generally includes underwater vehicles, repeaters, umbilical cables, heave compensation devices, winches, and operating consoles. The umbilical cables include armored cables connecting the mother ship and the repeater and connecting the Neutral cable for underwater vehicles. The characteristic of the neutral cable is that its density in seawater is equal to or slightly smaller than that of seawater, so that it does not generate gravity (ie zero buoyancy) in seawater, is easy to locate, and minimizes the impact on the underwater The influence of ...

AI Technical Summary

Problems solved by technology

[0004] 1) The applicable water depth is not specified or the applicable water depth is generally small, which is not applicable to the deep sea detection system;

[0005] 2) There is no grounding wire designed in the product structure, it is difficult to ensure that the current generated in the case of circuit short circuit and leakage current flows to the ground, and it does not have the function of circuit short circuit and leakage protection;

[0006] 3) There is no radial water blocking layer designed in the product structure. If the sheath is damaged, it is difficult to prevent seawater from intruding into the cable core;

[0007] 4) The product cannot work under high working tension, that is, the product does not have high working tensile strength;

[0008] 5) In order to make the product have the ability to float in sea water, generally adopt the form of separately designed foam layer or foam filling core, the manufacturing process is complicated and the manufacturing cost is high

Images