Movable marine underwater cable with built-in air pipe

Abstract

The utility model relates to the field of ship manufacturing, in particular to a movable marine underwater cable with a built-in air pipe, which comprises an air guide pipe, a conductive layer and a protective layer which are sequentially arranged from inside to outside along the cable, the conductive layer comprises a plurality of wire cores, the plurality of wire cores are positioned on the outer side of the air guide pipe, and a filling wire is arranged between every two adjacent wire cores. The cable has an air guide function while ensuring waterproofness and movement, and brings convenience to equipment with underwater operation tasks.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding, and in particular to a mobile underwater cable with a built-in air tube. Background Technology

[0002] In recent years, with the development of the global economy, the market size of the shipbuilding industry has also been expanding. As the blood vessels and nerves of a ship, cables are used everywhere in ships, responsible for power supply, signal transmission, and communication. In particular, marine cables used for underwater operations not only require the cables to be flexible, bend-resistant, and easy to move, but also require good waterproof properties to ensure that the cables can be immersed in water for a long time without quality problems. In addition, for specific underwater operations, the cables need to be able to conduct air to ensure the smooth progress of underwater operations.

[0003] Current shipboard underwater cables can basically achieve waterproofing and mobility, but it is difficult to meet the requirements for air conduction, which poses a challenge for equipment with underwater operations. Utility Model Content

[0004] The purpose of this invention is to provide a mobile marine underwater cable with a built-in air tube to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A mobile marine underwater cable with an internal air tube includes an air duct, a conductive layer and a protective layer arranged sequentially from the inside to the outside of the cable. The conductive layer includes multiple wire cores located outside the air duct, and a filler wire is provided between each adjacent wire core.

[0007] The wire core includes a conductor, which is wrapped with an insulating sheath, and a 500D white denier wire is located at the center of the conductor;

[0008] The protective layer consists of aluminum foil Mylar, which is wrapped with a braided layer. The aluminum foil Mylar and the braided layer together form a shielding layer, and the braided layer is wrapped with a sheath.

[0009] Preferred: The conductor is made of a bundle of tin-plated copper wire of type 6 twisted together.

[0010] Preferred: The insulation layer is made of high-density polyethylene (HDPE).

[0011] Preferably, the air duct is made of fluoroplastic.

[0012] Preferably, the filler line is made of expandable water-resistant rope.

[0013] Preferably, the overlap rate of the aluminum foil Mylar is not less than 25%, and the braided layer is made of tin-plated copper wire.

[0014] Preferred option: The sheath is made of waterproof polyurethane elastomer (TPU).

[0015] The advantages compared to existing technologies are as follows:

[0016] 1. The conductor uses Category 6 tin-plated copper wire with white denier wire, which ensures both flexibility and tensile strength while preventing conductor oxidation and ensuring the stability of power supply and signal transmission.

[0017] 2. The insulation is made of solid high-density polyethylene (HDPE), and the sheath is made of waterproof polyurethane elastomer (TPU). The wire cores are untwisted during cabling, and the materials have good waterproof effect and excellent bending resistance.

[0018] 3. The shielding uses aluminum foil Mylar and a braided layer, providing double-layer shielding with excellent shielding effect and ensuring stable signal transmission;

[0019] 4. The air duct is made of fluoroplastic, which has high hardness and will not be flattened when the wire core is cabled, nor will it crack due to the inflation pressure.

[0020] 5. The filler wire uses an expanding water-blocking rope that expands rapidly when it comes into contact with water, filling the gaps between the wire cores and preventing water from further penetrating between the cores. This ensures both the roundness of the cable and the waterproof effect of the product. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a mobile marine underwater cable with an internal air tube, as described in this utility model.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1. Conductor; 2. White denier wire; 3. Insulating layer; 4. Air duct; 5. Filler wire; 6. Aluminum foil Mylar; 7. Braided layer; 8. Sheath. Detailed Implementation

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figure 1 As shown, a mobile marine underwater cable with an internal air tube includes an air duct 4, a conductive layer and a protective layer arranged sequentially from the inside to the outside of the cable. The conductive layer includes multiple wire cores located outside the air duct 4, and a filler wire 5 is provided between each adjacent wire core. The filler wire 5 is an expansion water-blocking rope, and the air duct 4 is made of fluoroplastic.

[0028] In this embodiment: the wire core includes conductor 1, which is made of Category 6 tinned copper wire bundle twisted together. The conductor 1 is wrapped with insulation 3, which is made of high-density polyethylene (HDPE). The center of conductor 1 is provided with 500D white denier wire 2, which makes the overall effect soft and strong, and improves the bending tensile strength of the cable. High-density polyethylene has good waterproof effect and low dielectric constant, making it suitable for signal transmission.

[0029] In this embodiment: the protective layer includes aluminum foil Mylar 6, and a braided layer 7 is wrapped around the outside of the aluminum foil Mylar 6. The aluminum foil Mylar 6 and the braided layer 7 form a shielding layer. The overlap rate of the aluminum foil Mylar 6 is not less than 25%. The braided layer 7 is made of tin-plated copper wire. The braided layer 7 is wrapped with a sheath 8. The sheath 8 is made of waterproof polyurethane elastomer (TPU), which has excellent shielding effect and ensures the stability of signal transmission.

[0030] Working principle: Conductor 1 uses Category 6 tin-plated copper, with a 500D white denier wire 2 added to conductor 1, resulting in a flexible and strong overall effect, improving the cable's bending and tensile strength; Insulation sheath 3 uses solid high-density polyethylene (HDPE), which has good waterproof performance and a low dielectric constant, making it suitable for signal transmission; Air duct 4 in the center of the cable provides air pressure tension to underwater equipment via a small air compressor, enabling underwater operations; Filler wire 5 uses expanding water-blocking rope, which expands rapidly when it encounters water, filling the gaps between the wire cores and preventing further water penetration; The shielding layer uses a double-layer shielding system of aluminum foil Mylar 6 and braided layer 7, providing excellent shielding performance and ensuring the stability of signal transmission; Sheath 8 uses waterproof polyurethane elastomer (TPU), a soft and highly elastic material that will not expand and break during underwater operations.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An internal gas-filled pipe-laid marine underwater cable, characterized by: It comprises, from inside to outside along the cable, an air guide tube (4), a conductive layer and a protective layer, the conductive layer comprises a plurality of wire cores, the plurality of wire cores are located outside the air guide tube (4), and a filling wire (5) is arranged between adjacent two wire cores; The wire core comprises a conductor (1), the outer side of the conductor (1) is wrapped with an insulating skin (3), and a 500D white silk (2) is arranged at the center position of the conductor (1); The protective layer comprises an aluminum foil Mylar (6), the outer side of the aluminum foil Mylar (6) is wrapped with a braided layer (7), the aluminum foil Mylar (6) and the braided layer (7) constitute a shielding layer, and the outer side of the braided layer (7) is wrapped with a sheath (8).

2. A built-in pneumatic tube mobile marine underwater cable according to claim 1, characterized in that: The conductor (1) is twisted by 6 types of tin-plated copper wire bundles.

3. A built-in pneumatic tube mobile marine underwater cable according to claim 1, characterized in that: The insulating skin (3) is made of high-density polyethylene.

4. A built-in pneumatic tube mobile marine underwater cable according to claim 1, characterized in that: The air guide tube (4) is made of fluoroplastic.

5. A built-in pneumatic tube mobile marine underwater cable according to claim 1, characterized in that: The filling wire (5) is made of an expanded water-blocking rope.

6. A built-in pneumatic tube mobile marine underwater cable according to claim 1, characterized in that: The overlapping rate of the aluminum foil Mylar (6) is not less than 25%, and the braided layer (7) is woven by tin-plated copper wires.

7. A built-in pneumatic tube mobile marine underwater cable according to claim 1, characterized in that: The sheath (8) is made of waterproof polyurethane elastomer.

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