A submarine cable that can prevent submarine organisms from damaging it

Abstract

The present invention provides a submarine cable that is resistant to submarine organism damage, comprising a cable body and a repellent device; the repellent device comprises an outer armor layer and an outer sheath layer; the outer armor layer comprises a plurality of first and second armor wires wrapped around the cable body, the first and second armor wires being arranged alternately; a plurality of repellent mechanisms and a plurality of support sleeves are disposed over the second armor wires, the repellent mechanisms and the support sleeves being arranged alternately; each repellent mechanism comprises an inner sleeve, a water-absorbing material, an outer sleeve, and a blocking plate; the inner sleeve is disposed over the second armor wires; the outer sleeve is disposed over the inner sleeve; the water-absorbing material is filled between the inner sleeve and the outer sleeve and adsorbed with a repellent liquid; and the blocking plates block both sides of the space between the inner sleeve and the outer sleeve. The present invention, when submarine organisms bite through the outer sleeve of the repellent device, the water-absorbing material in the outer sleeve is squeezed to release the repellent liquid, thereby repelling the submarine organisms, protecting the cable body from damage, and ensuring the normal use of the submarine cable.

Description

Technical Field

[0001] The invention belongs to the technical field of electric wires and cables, and in particular relates to a submarine cable that can prevent submarine organisms from damaging it. Background Art

[0002] Currently, submarine cables are laid according to pre-explored routes. For shallow sea areas, trenches are usually dug while submarine cables are placed in the trenches, and finally buried with soil to cover them. For deep sea areas with a certain depth, buoys are used to suspend submarine cables in the seawater. Cables exposed to the seawater are exposed to attacks from marine life, especially sharks and other marine life, which may bite through the outer protective layer of the cable, causing damage to the cable interior and affecting the normal transmission of the cable. At the same time, it is difficult to repair the cable in the deep sea. Therefore, it is necessary to carry out certain anti-submarine life protection on submarine cables. At present, in response to shark attacks, some technicians have adopted the method of painting the outer surface of submarine cables with orange paint to repel sharks, but this is only applicable to areas with a little brightness of seawater. For areas with low brightness of seawater, the protection effect is not ideal. Summary of the Invention

[0003] In order to solve the above problems, the purpose of the present invention is to provide a submarine cable that can effectively repel submarine creatures, especially sharks, and prevent them from biting the cable body.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A submarine cable for preventing submarine organisms from damaging it comprises a cable body, and a repellent device is further provided outside the cable body; the repellent device comprises an outer armor layer and an outer sheath layer; the outer armor layer comprises a plurality of first armor wires and a plurality of second armor wires wrapped around the cable body along the length direction of the cable body, and the first armor wires and the second armor wires are arranged alternately, and the diameter of the first armor wire is larger than the diameter of the second armor wire; a plurality of repellent mechanisms and a plurality of support sleeves are provided outside the second armor wires, and the repellent mechanisms and the support sleeves are arranged alternately; each repellent mechanism comprises an inner sleeve, a water-absorbing material, an outer sleeve and a sealing plate; the inner sleeve is sleeved outside the second armor wire; the outer sleeve is sleeved outside the inner sleeve; the water-absorbing material is filled between the inner sleeve and the outer sleeve, and a repellent liquid for repelling submarine organisms is adsorbed in the water-absorbing material; the sealing plate blocks both sides of the cavity formed between the inner sleeve and the outer sleeve, and seals the water-absorbing material in the cavity between the inner sleeve and the outer sleeve.

[0006] The beneficial effects of the present invention are as follows:

[0007] The present invention arranges a repellent device outside the cable body of the existing submarine cable. When submarine organisms bite through the outer sleeve of the repellent device, the water-absorbing material in the outer sleeve is squeezed to release the repellent liquid, thereby repelling the submarine organisms and protecting the cable body. The entire structure is scientific and reasonable. The arrangement of the repellent device can effectively protect the cable body from damage by submarine organisms, thereby ensuring the normal use of the submarine cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The structure of the present invention is further described in detail below with reference to the accompanying drawings.

[0009] Figure 1 This is a cross-sectional view of the submarine cable that is resistant to damage by submarine organisms according to the present invention.

[0010] Figure 2 This is a schematic diagram of the partial structure of the outer armor layer of the submarine cable that prevents submarine organisms from damaging it according to the present invention.

[0011] Figure 3 For the Figure 2 Cross-sectional view in the AA direction.

[0012] Figure 4 For the Figure 2 Cross-sectional view in the BB direction.

[0013] Figure 5 This is a schematic structural diagram of the second armored wire and its external repelling mechanism in the submarine cable for preventing submarine organisms from damaging it according to the present invention.

[0014] As shown in the figure: 1-conductor, 2-wrapping layer, 3-insulating layer, 4-insulating shielding layer, 5-oil guide pipe, 6-filling layer, 7-metal shielding layer, 8-metal protective sleeve, 9-inner lining layer, 10-inner armor layer, 11-inner sheath layer, 12-outer armor layer, 121-first armored wire, 122-second armored wire, 123-repellent mechanism, 1231-inner sleeve, 1232-water-absorbing material, 1233-outer sleeve, 1234-sealing plate, 124-support sleeve, 13-outer sheath layer. DETAILED DESCRIPTION

[0015] The following specific embodiments illustrate the embodiments of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the contents disclosed in this specification. The described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0017] In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. It should be noted that the terms "include", "comprise" or any other variants are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. Example

[0018] like Figures 1 to 5 As shown, this embodiment provides a submarine cable that prevents submarine creatures from damaging it, comprising a cable body and a repelling device. The submarine cable is a submarine power cable, and the submarine creature is a shark.

[0019] The cable body includes a cable core, an oil guide tube 5 , a filling layer 6 , a metal shielding layer 7 , a metal protective sleeve 8 , an inner lining layer 9 , an inner armor layer 10 and an inner sheath layer 11 .

[0020] There are three cable cores evenly distributed within the metal shielding layer 7. Each cable core comprises, from the inside out, a conductor 1, a wrapping layer 2, an insulating layer 3, and an insulating shielding layer 4. The conductor 1 is made of multiple twisted copper wires and has a circular cross-section. The wrapping layer 2 is a semi-conductive material, such as a semi-conductive tape, wrapped around the conductor 1. The insulating layer 3 is formed by extruding a cross-linked polyethylene insulating material over the wrapping layer 2. The insulating shielding layer 4 is formed by extruding a semi-conductive polyethylene material over the insulating layer 3 to evenly distribute the electric field and provide additional protection.

[0021] There are three oil guide pipes 5 and they are evenly distributed inside the metal shielding layer 7 . One oil guide pipe 5 is provided between every two adjacent cable cores, and insulating oil circulates in each oil guide pipe 5 .

[0022] The filling layer 6 is filled between the cable core and the metal shielding layer 7 and between the oil guide pipe 5 and the metal shielding layer 7. The material used for the filling layer 6 is polypropylene rope, glass fiber rope, asbestos rope, rubber, etc.

[0023] The metal shielding layer 7, metal protective sleeve 8, inner lining layer 9, inner armor layer 10, and inner sheath layer 11 are arranged concentrically from the inside out, encasing the cable core, oil conduit 5, and filler layer 6. The metal shielding layer 7 is a copper mesh woven from copper wires, which shields the electromagnetic field generated by the cable core while also homogenizing the electric field and preventing axial discharge. The metal protective sleeve 8 is a lead sheath with excellent mechanical properties and shielding effectiveness, providing both mechanical protection and shielding. The inner lining layer 9 is formed by wrapping an oil-based impregnated material around the metal protective sleeve 8. The inner armor layer 10 is formed by spirally wrapping a flat copper tape around the inner lining layer 9 to protect the cable. The inner sheath layer 11 is made of polyethylene (PE) or other environmentally resistant materials to prevent mechanical damage and corrosion.

[0024] In addition to the above cable body structure of the conventional submarine power cable, this embodiment further provides a repellent device outside the conventional cable body.

[0025] The repelling device includes an outer armor layer 12 and an outer sheath layer 13 .

[0026] like Figure 2-5 As shown, the outer armor layer 12 includes a plurality of first armor wires 121 and a plurality of second armor wires 122 spirally wrapped around the cable body along the length direction of the cable body, and the first armor wires 121 and the second armor wires 122 are arranged alternately. The diameter of the first armor wire 121 is larger than the diameter of the second armor wire 122. The first armor wires 121 and the second armor wires 122 are made of galvanized steel wire or other high-strength materials to enhance the tensile and compressive properties of the cable.

[0027] Multiple repelling mechanisms 123 and multiple support sleeves 124 are provided on the outer jacket of the second armored wire 122. These repelling mechanisms 123 and support sleeves 124 are alternately provided on the second armored wire 122. During installation, the repelling mechanisms 123 and support sleeves 124 are continuously and alternately provided on the second armored wire 122. Support sleeves 124 are provided at both ends of the second armored wire 122. In the middle of the second armored wire 122, a support sleeve 124 is provided adjacent to each repelling mechanism 123. Each repelling mechanism 123 is surrounded by two first armored wires 121 and two support sleeves 124. This effectively ensures the mechanical strength, tensile strength, and compressive strength of the cable while repelling sharks, while also protecting the repelling mechanisms 123 from pressure.

[0028] like Figure 3 and Figure 5 As shown, each repellent mechanism 123 includes an inner sleeve 1231, a water-absorbing material 1232, an outer sleeve 1233, and a blocking plate 1234. The inner sleeve 1231 is sleeved over the second armored wire 122. The outer sleeve 1233 is concentrically sleeved over the inner sleeve 1231, forming an annular accommodating cavity between the outer sleeve 1233 and the inner sleeve 1231. The outer diameter of the outer sleeve 1233 is equal to the diameter of the first armored wire 121 and the outer diameter of the support sleeve 124. The water-absorbing material 1232 is filled between the inner sleeve 1231 and the outer sleeve 1233. The water-absorbing material 1232 is a tubular body made of a water-absorbing sponge and sleeved over the inner sleeve 1231. The water-absorbing material 1232 absorbs a repellent liquid for repelling seabed organisms. The repellent liquid is made of juice obtained by squeezing any one or more of lemon, vanilla and mint. After the water-absorbing material 1232 is sleeved between the outer sleeve 1233 and the inner sleeve 1231, the repellent liquid is injected into the water-absorbing material 1232 until it is saturated, and finally the sealing plate 1234 is used to seal the accommodating cavity between the inner sleeve 1231 and the outer sleeve 1233.

[0029] Two sealing plates 1234 are provided, one on each side of the cavity formed between the inner sleeve 1231 and the outer sleeve 1233, thereby sealing the water-absorbing material 1232 within the cavity between the inner sleeve 1231 and the outer sleeve 1233. The inner sleeve 1231, the outer sleeve 1233, and the sealing plates 1234 are all made of ethylene propylene rubber (EPR), which has excellent water resistance, stability against weathering and light, and flame retardancy.

[0030] The support sleeve 124 is a tubular body made of galvanized steel. The length of the support sleeve 124 is shorter than the length of the outer sleeve.

[0031] The outer sheath layer 13 is sleeved on the outer armor layer 12 and is also made of polyethylene (PE) or other environmentally resistant materials, serving as a final protective layer to prevent mechanical damage and corrosion.

[0032] The submarine cable for preventing damage from submarine organisms described in this embodiment is laid and buried in the mud and sand of the seabed. However, after being exposed for various reasons, if a shark bites it, it will first bite through the outer sheath layer 13, and then bite through the outer sleeve 1233 of the repellent mechanism 123 on the outer armor layer 12. When biting through the outer sleeve 1233, the water-absorbing material 1232 inside it will be squeezed, so that the repellent liquid in the water-absorbing material 1232 is squeezed out from the breach and sprayed into or near the shark's mouth. Since there is an odor in the repellent liquid that makes sharks feel uncomfortable, the sharks will instinctively stay away from the submarine cable, preventing the sharks from further biting the cable body, effectively protecting the cable, and ensuring the normal operation of the submarine cable. The water-absorbing material in the area bitten by the shark will continuously release odor, prompting the shark not to approach easily. Even if the shark approaches many times and feels uncomfortable, after forming a conditioned reflex, the sharks in the area will instinctively stay away from the area, indirectly avoiding secondary damage.

[0033] Similarly, if you want to repel sea creatures other than sharks that like to gnaw on cables, you only need to add the corresponding substances that the sea creatures repel to the repellent liquid.

[0034] Other aspects of the present invention that are not described in detail are all conventional techniques known to those skilled in the art.

[0035] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements that are inherent to such process, method, article, or apparatus.

[0036] The protection scope of the present invention is not limited to the technical solutions disclosed in the specific implementation methods. Any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A submarine cable that is resistant to damage by submarine organisms, comprising a cable body, characterized in that: A repelling device is also provided outside the cable body; the repelling device includes an outer armor layer and an outer sheath layer; the outer armor layer includes a plurality of first armor wires and a plurality of second armor wires wrapped around the outside of the cable body along the length direction of the cable body, and the first armor wires and the second armor wires are alternately arranged, and the diameter of the first armor wire is larger than the diameter of the second armor wire; a plurality of repelling mechanisms and a plurality of supporting sleeves are provided outside the second armor wire, and the repelling mechanisms and the supporting sleeves are alternately arranged; each repelling mechanism includes an inner sleeve, a water-absorbing material, an outer sleeve and a sealing plate; the inner sleeve is sleeved outside the second armor wire; the outer sleeve is sleeved outside the inner sleeve; the water-absorbing material is filled between the inner sleeve and the outer sleeve, and a repelling liquid for repelling seabed organisms is adsorbed in the water-absorbing material; the sealing plate seals both sides of the cavity formed between the inner sleeve and the outer sleeve.

2. The submarine cable resistant to submarine biodestruction according to claim 1, characterized in that: The first armor wire and the second armor wire are made of high-strength material.

3. The submarine cable resistant to submarine biodestruction according to claim 2, characterized in that: The first armor wire and the second armor wire are both galvanized steel wires.

4. The submarine cable resistant to submarine biodestruction according to claim 1, characterized in that: The length of the support sleeve is smaller than the length of the outer sleeve.

5. The submarine cable resistant to submarine biodestruction according to claim 1, characterized in that: The support sleeve is a tubular body made of galvanized steel; the inner sleeve, outer sleeve and sealing plate are made of EPDM rubber; the water-absorbing material is a tubular body made of water-absorbing sponge and sleeved on the outside of the inner sleeve.

6. The submarine cable resistant to submarine biodestruction according to claim 1, characterized in that: The outer diameter of the outer sleeve is equal to the diameter of the first armored wire and the outer diameter of the support sleeve.

7. The submarine cable resistant to submarine biodestruction according to claim 1, characterized in that: The seabed creature is a shark; the repellent liquid is made of any one or more of lemon, vanilla and mint.

8. The submarine cable resistant to submarine biodestruction according to any one of claims 1 to 7, characterized in that: The cable body includes a cable core and a metal shielding layer, a metal protective sleeve, an inner lining layer, an inner armor layer and an inner sheath layer which are sequentially sleeved on the cable core from the inside to the outside, and a filling layer is provided between the cable core and the shielding layer.

9. The submarine cable resistant to submarine biodestruction according to claim 8, characterized in that: An oil guide pipe is provided between the cable core and the metal shielding layer, and insulating oil circulates through the oil guide pipe.

Images