Ocean engineering umbilical cable capable of preventing seawater corrosion

Abstract

The invention discloses an anti-seawater-corrosion umbilical cable for ocean engineering. Seven inner power wire cores and an inner-layer polypropylene moisture absorption core material are twisted to form a first wire core body, and the first wire core body is coated with a first copper-plastic composite belt wrapping shielding layer; three radio frequency coaxial wire cores and six control wire cores are uniformly distributed around the first copper-plastic composite belt wrapping shielding layer and are twisted with the middle polypropylene moisture absorption core material to form a second wire core body; a second copper-plastic composite belt wrapping shielding layer is coated outside the second wire core body; a plurality of outer power wire cores are uniformly distributed around the outside of the second copper-plastic composite belt wrapping shielding layer and are twisted with the outer polypropylene moisture absorption core material to form a cable core; a polyester fiber plain woven fabric inner wrapping layer, a third copper-plastic composite belt wrapping shielding layer, a polyester fiber plain woven fabric outer wrapping layer, an extruded lead sleeve anti-corrosion layer, a butyl rubber extruded inner sheath, a stainless steel wire inner and outer armor layer and a polyurethane outer sheath are wrapped outside the cable core. The cable has excellent seawater corrosion resistance and seawater corrosion resistance, and is better in durability.

Description

technical field [0001] The invention relates to the technical field, in particular to a seawater corrosion-resistant umbilical cable for marine engineering. Background technique [0002] The umbilical cable for marine engineering is a comprehensive cable that integrates power transmission, digital signal and video signal transmission. Generally 450 / 750V, 0.6 / 1kV, 1.8 / 3kV and 3.6 / 6kV, the power transmission power is large, which can provide powerful power for submarine power equipment. This type of cable requires high mechanical strength, good wear resistance, and excellent water sealing performance. However, ordinary umbilical cables have average anti-seawater erosion and anti-seawater corrosion performance, poor durability, and even affect the safety and reliability of cable work. Contents of the invention [0003] The present invention aims at the deficiencies of the prior art, and the technical problem to be solved is to provide an umbilical cable for seawater corrosi...

AI Technical Summary

Problems solved by technology

However, ordinary umbilical cables have average anti-seawater erosion and anti-seawater corrosion performance, poor durability, and even affect the safety and reliability of cable work.

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