Buoyancy controllable optoelectrical composite cable

Abstract

The invention relates to a buoyancy controllable optoelectrical composite cable comprising a cable core and a sheath, wherein the sheath is sleeved outside the cable core, the cable core comprises a reinforcing core, more than one optic bundle tube and a power lead, wherein the optic bundle tubes are twisted around the reinforcing core and comprise a loose tube, optical fibers arranged in the loose tube and filling fiber paste. The buoyancy controllable optoelectrical composite cable is characterized in that more than one buoyancy control unit twisting layer is additionally arranged in the sheath, a buoyancy control unit is a physical foamed plastic filling rope or a hollow plastic tube, the reinforcing core is formed by covering a plastic cushion layer by aramid fiber, the sheath mainly comprises a first water-blocking taping layer, two buoyancy control unit twisting layers, a second water-blocking taping layer, an aramid fiber reinforcing layer and an outer polyurethane sheath which are coated on the cable core sequentially, and a copper core signal wire and / or a coaxial cable signal wire are / is arranged in the cable core. The invention has the advantages of reasonably and flexibly controlling the buoyancy of an optoelectrical composite cable, satisfying special application requirements of operation positioned on a water surface or underwater and obviously improving the tension intensity.

Description

technical field [0001] The invention relates to a photoelectric integrated cable mainly used for transmission of information and electric power for special application situations positioned on the water surface or underwater operations, in particular to a buoyancy controllable photoelectric integrated cable. Background technique [0002] At present, ordinary photoelectric integrated cables can be laid underwater in rivers, rivers, lakes, seas, etc., for hydraulic observation, underwater detection, or signal or power transmission across water areas, but for special applications, such as underwater robots, surface measurement and control Information and power transmission applications such as systems require that the photoelectric integrated cable can not only be placed underwater, but also be able to stay in any position in the water or float on the water according to the needs of use, which requires its buoyancy to be controlled. The integrated cable does not have the buoyan...

AI Technical Summary

Problems solved by technology

[0002] At present, ordinary photoelectric integrated cables can be laid underwater in rivers, rivers, lakes, seas, etc., for hydraulic observation, underwater detection, or signal or power transmission across water areas, but for special applications, such as underwater robots, surface measurement and control Information and power transmission applications such as systems require that the photoelectric integrated cable can not only be placed underwater, but also be able to stay in any position in the water or float on the water according to the needs of use, which requires its buoyancy to be controlled. The integrated cable does not have the buoyancy control function in the production, so its buoyancy cannot be guaranteed to meet the needs of the above special purposes

In addition, the existing photoelectric composite cable is mainly composed of a cable core and a sheath set outside the cable core. The reinforcing core in the cable core of the existing photoelectric composite cable is made of phosphating steel wire or glass fiber reinforced plastic rod, which is more flexible. Poor, the tensile strength cannot meet the needs of the above applications

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