Heavy cable and zero float cable mixed type photoelectric composite tow

Abstract

A photoelectric composite tow of heavy cable and zero-buoyancy cable mixed type is prepared as forming heavy cable by heavy cable section and transition section as well as zero-buoyancy section, setting heavy cable section at one end of heavy cable and zero-buoyancy section at the other end of heavy cable, covering a polyimine resin protection sheath on tensile outer layer of heavy cable, preparing zero-buoyancy cable section on said sheath, setting said transition section between two said sections for making foamed protection sheath there be from thick to thin to form transition section of tow.

Description

technical field [0001] The invention relates to a tow cable of an underwater tow system, in particular to a hybrid photoelectric composite tow cable of a heavy cable and a zero-buoyancy cable Background technique [0002] In the field of marine exploration, some underwater vehicles need to be towed by mother ships with tow cables. In order to ensure a stable movement attitude of the underwater vehicle, the underwater vehicle often adopts a zero-buoyancy towing method. The underwater vehicle is zero-buoyancy, and a section of the tow cable is also required to be zero-buoyancy. The size of the zero-buoyancy cable is often larger than that of the heavy cable. If all the towlines are made of zero-buoyancy cables, the fluid resistance will increase, making it difficult for the towed body to dive to the specified depth. Therefore, when designing the tow cable of the underwater towed system, it is often required that one section of the tow cable is a zero-buoyancy cable, while the...

AI Technical Summary

Problems solved by technology

[0010] The object of the present invention is to overcome the defects of high cost, complex structure, low reliability and difficult retraction of the existing heavy cable and zero buoyancy cable mixed towing cable; length = the length of the heavy cable + the length of the transition section + the length of the zero-buoyancy cable), foaming material is added outside the part that needs to become a zero-buoyancy cable, so that the section of the heavy cable becomes a zero-buoyancy cable, and the zero-buoyancy cable and the heavy cable A smooth transition section is added between them to achieve a hybrid photoelectric composite tow cable that realizes a heavy cable without joints and a zero-buoyancy cable on one cable

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