Corrosion-resistant submarine cable with anti-tension damage structure

Abstract

This utility model discloses a corrosion-resistant submarine cable with a tension-damage-resistant structure, comprising: an optical fiber bundle, which serves as the optical fiber guide for the submarine optical cable and transmits telecommunication signals and internet signals; the optical fiber bundle penetrates the interior of a protective paraffin layer, which is a cylindrical strip structure; silicone sleeves are equidistantly fitted around the exterior of the protective paraffin layer; the protective paraffin layer penetrates the interior of a limiting copper tube, and symmetrical protrusions are arranged on the exterior of the limiting copper tube. In this corrosion-resistant submarine cable with a tension-damage-resistant structure, a polyethylene layer is wrapped around an aerogel layer, and a protective strand is spirally wrapped within the aerogel layer. Through a rotating connection between the aerogel layer and the polyethylene layer, the polyethylene layer rotates as seawater pushes it, causing rotation between the inner wall of the polyethylene layer and the outer wall of the aerogel layer, maintaining the uniformity of the optical fibers wrapped within the aerogel layer and the protective strand.

Description

Technical Field

[0001] This utility model relates to the field of submarine cable technology, specifically to a corrosion-resistant submarine cable with a structure to prevent tension damage. Background Technology

[0002] Submarine cables are cables wrapped in insulating materials and laid on the seabed for telecommunications transmission. Submarine cables are divided into submarine communication cables and submarine power cables. Submarine communication cables are mainly used for communication services, while submarine power cables are mainly used for underwater transmission of high-power electrical energy. They serve the same purpose as underground power cables, but the application scenarios and laying methods are different. Because submarine cables are laid on the seabed, they are subjected to water pressure and seawater corrosion.

[0003] In the application for "CN202948774U High Water Resistance, Corrosion Resistance, and High Protection High Voltage Cable", argon arc welding is used to achieve complete sealing and water resistance. To prevent water from penetrating longitudinally from the stainless steel sheath, a corrugated stainless steel sheath with annular serrations is used. However, when the submarine cable enters seawater, the cable is pushed and turned by the seawater flow, causing the internal structure to twist and resulting in damage to the internal optical fiber structure, affecting the signal transmission effect. Furthermore, armor loss is an effective way to increase the current carrying capacity of the submarine cable. In the use of armor materials, the steel strands are prone to react with seawater to produce hydrogen gas, which can easily affect the optical fiber. Utility Model Content

[0004] The purpose of this invention is to provide a corrosion-resistant submarine cable with a tension-damage-resistant structure to solve the problem mentioned in the background art where seawater flow pushes the cable overturning, causing the internal structure to twist and resulting in damage to the internal optical fiber structure, affecting the signal transmission effect. Furthermore, armor loss is an effective way to increase the current carrying capacity of submarine cables. In the use of armor materials, steel strands are prone to react with seawater to produce hydrogen gas, which can easily affect optical fibers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant submarine cable with a structure to prevent tension damage, comprising an optical fiber bundle, which serves as the optical fiber guide for the submarine optical cable, and the optical fiber bundle is used to transmit telecommunication signals and Internet signals; The optical fiber bundle penetrates the interior of the protective paraffin layer, which is a cylindrical strip structure. The protective paraffin layer is equidistantly fitted with silicone sleeves, and the protective paraffin layer penetrates the interior of the limiting copper tube. The limiting copper tube is symmetrically provided with protruding structures on its exterior. The center of the silicone sleeve is aligned with the center of the protective paraffin layer, and the outer wall of the silicone sleeve abuts against the inner wall of the limiting copper tube. A polycarbonate layer is sleeved on the outer wall of the limiting copper tube. A waterproof layer is sleeved on the outer wall of the polycarbonate layer, and the waterproof layer, polycarbonate layer, and limiting copper tube are installed concentrically. Copper stranded wires are arranged in a ring at equal intervals outside the waterproof layer, and the copper stranded wires are further surrounded by... Protective components protect the fiber bundle located inside the copper stranded wire from corrosion of the internal structure by external seawater; The copper stranded wire passes through the cylindrical pipe formed by the aerogel layer, and the inner wall of the aerogel layer is provided with equidistant annular limiting grooves, which are spirally arranged.

[0006] The above technical solution provides protection for the interior of submarine cables entering seawater, preventing damage to the optical fiber bundles.

[0007] Preferably, the protective paraffin layer has a uniformly arranged optical fiber bundle inside, and the optical fiber bundle is arranged radially with the center as the center.

[0008] Using the above technical solution, multiple fiber optic bundles are uniformly limited and installed by means of a protective paraffin layer.

[0009] Preferably, the concave-convex structure on the outer wall of the limiting copper tube engages with the concave-convex structure on the inner wall of the polycarbonate layer, and the concave-convex structure on the outer wall of the polycarbonate layer engages with the concave-convex structure on the inner wall of the waterproof layer.

[0010] Using the above technical solution, the optical fiber bundle is positioned and installed through a limiting copper tube, providing protection for the optical fiber bundle.

[0011] Preferably, a guide limiting strip is provided between two adjacent copper strands, and the guide limiting strip and the copper strands are arranged in an interlaced ring.

[0012] By adopting the above technical solution, guide and limiting strips are used to provide installation between copper stranded wires, thereby improving the limitation and protection of the copper stranded wires.

[0013] Preferably, the protective component includes: A protective stranded wire passes through the inside of the limiting groove; A polyethylene layer is fitted over the aerogel layer, and the polyethylene layer and the aerogel layer are arranged in concentric circles. A polyurethane protective sleeve is provided at the top of the outer wall surface of the polyethylene layer; A second polyurethane protective sleeve is provided at the bottom of the outer wall surface of the polyethylene layer.

[0014] By adopting the above technical solution, the tension received by the submarine cable is reduced through the protective components, thus avoiding excessive compression of the beam structure inside the submarine cable by water pressure.

[0015] Preferably, the center of the polyethylene layer is aligned with the center of the protective paraffin layer, and the inner wall of the polyethylene layer is rotatably connected to the aerogel layer and the outer wall of the protective strand.

[0016] The above technical solution involves adding a polyethylene layer to the outside of the submarine cable in conjunction with the internal aerogel layer for protection.

[0017] Preferably, the first polyurethane protective sleeve and the second polyurethane protective sleeve are engaged and connected, and the first polyurethane protective sleeve and the second polyurethane protective sleeve form a ring structure.

[0018] Using the above technical solution, polyurethane protective sleeve one and polyurethane protective sleeve two are connected to provide support and protection for the outside of the submarine cable, and are installed on the seabed in conjunction with support equipment.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the corrosion-resistant submarine cable with a structure to prevent tensile damage: 1. In use, as the polyethylene layer is wrapped around the aerogel layer, the protective strands inside the aerogel layer are spirally wrapped around the aerogel layer. Through the rotational connection between the aerogel layer and the polyethylene layer, the polyethylene layer is pushed to rotate by seawater, so that the optical fiber wrapped inside the aerogel layer and the outer wall of the aerogel layer rotates between the inner wall of the polyethylene layer and the outer wall of the aerogel layer, keeping the optical fiber wrapped inside the aerogel layer and the protective strands uniform. 2. As the polyethylene layer and the outer wall of the protective strand and the aerogel layer are mated together, the push of seawater is prevented from causing excessive twisting of the fiber bundle inside the aerogel layer and the protective strand. As the fiber bundle twists, the fiber tension increases and is damaged. The fiber bundle damaged by tension affects the signal transmission. 3. The guide limiting strip located inside the protective stranded wire and aerogel layer is composed of armored interlaced copper stranded wire. The ring structure formed by the guide limiting strip and copper stranded wire wraps around the limiting copper tube, polycarbonate layer and waterproof layer, improving the protective wrapping effect on the outer layer of the optical fiber bundle. 4. The limiting copper tube, polycarbonate layer and waterproof layer are all interlocked. As the concave and convex structure on the outer wall of the limiting copper tube interlocks with the concave and convex structure on the inner wall of the polycarbonate layer, and the concave and convex structure on the outer wall of the polycarbonate layer interlocks with the concave and convex structure on the inner layer of the waterproof layer, the three-layer structure is stably nested and connected, reducing the impact of external pressure on the internal optical fiber bundle. 5. The submarine cable is wrapped around the protective paraffin layer with a limiting copper tube and copper stranded wire, which provides protection and limitation for the optical fiber bundle inside the protective paraffin layer, reduces the amount of steel material inside the device, reduces hydrogen generation when in contact with seawater, and reduces seawater entry into the device due to the aerogel wrapping. The submarine cable is installed on the seabed with a ring frame consisting of polyurethane protective sleeve one and polyurethane protective sleeve two, which facilitates the installation and limitation of the submarine cable. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model; Figure 2 This is a top-section three-dimensional structural diagram of the overall internal structure of this utility model; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the polyethylene layer of this utility model. Figure 4 This is a schematic diagram of the overall internal three-dimensional structure of this utility model; Figure 5 This is a three-dimensional structural diagram of the installation of the guide limit strip and the protective strand of this utility model; Figure 6 This is a three-dimensional structural diagram of the polyurethane protective sleeve one and polyurethane protective sleeve two of this utility model.

[0021] In the diagram: 1. Fiber optic bundle; 2. Protective paraffin layer; 3. Silicone sleeve; 4. Limiting copper tube; 5. Polycarbonate layer; 6. Waterproof layer; 7. Guide limiting strip; 8. Copper stranded wire; 9. Limiting groove; 10. Aerogel layer; 11. Protective stranded wire; 12. Polyethylene layer; 13. Polyurethane protective sleeve one; 14. Polyurethane protective sleeve two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 This utility model provides a technical solution: a corrosion-resistant submarine cable with a structure to prevent tension damage, comprising an optical fiber bundle 1, a protective paraffin layer 2, a silicone sleeve 3, a limiting copper tube 4, a polycarbonate layer 5, a waterproof layer 6, a guide limiting strip 7, copper stranded wire 8, a limiting groove 9, an aerogel layer 10, a protective stranded wire 11, a polyethylene layer 12, a polyurethane protective sleeve one 13, and a polyurethane protective sleeve two 14. Example 1:

[0024] The present embodiment discloses: an optical fiber bundle 1, which serves as the optical fiber guide for the submarine optical cable; the optical fiber bundle 1 is used to transmit telecommunications signals and Internet signals. The optical fiber bundle 1 penetrates the interior of the protective paraffin layer 2, and the protective paraffin layer 2 is a cylindrical strip structure. The protective paraffin layer 2 is equidistantly fitted with silicone sleeves 3, and the protective paraffin layer 2 penetrates the interior of the limiting copper tube 4. The limiting copper tube 4 is symmetrically provided with protruding structures on its outside. The center of the silicone sleeve 3 is aligned with the center of the protective paraffin layer 2, and the outer wall surface of the silicone sleeve 3 abuts against the inner wall surface of the limiting copper tube 4. The optical fiber bundle 1 is uniformly arranged inside the protective paraffin layer 2, and the optical fiber bundle 1 is arranged radially with the center as the center. The concave and convex structure of the outer wall surface of the limiting copper tube 4 is engaged and connected with the concave and convex structure of the inner wall surface of the polycarbonate layer 5, and the concave and convex structure of the outer wall surface of the polycarbonate layer 5 is engaged and connected with the concave and convex structure of the inner wall surface of the waterproof layer 6. Referring to the attached diagrams in the instruction manual Figure 1-6 As shown, during use, the protective paraffin layer 2 provides restraint for multiple fiber bundles 1, such as... Figure 1-4 As shown, the optical fiber bundle 1 is radially and evenly arranged inside the protective paraffin layer 2, which is a paraffin material with added polyolefin additives to increase the overall melting point, adhesion, and flexibility, providing a protective enclosure for the internal optical fiber bundle 1 and improving its waterproof and moisture-proof effect. A silicone sleeve 3 is placed outside the protective paraffin layer 2, as shown... Figure 2-3 As shown, the silicone sleeves 3 are equidistantly fitted onto the outer structure of the protective paraffin layer 2, providing assistance for the installation of the protective paraffin layer 2 and the limiting copper tube 4, preventing grease from sliding between the limiting copper tube 4 and the surface of the protective paraffin layer 2, and increasing the assistance between the limiting copper tube 4 and the protective paraffin layer 2. With the protective paraffin layer 2 and the limiting copper tube 4 fitted and installed, the limiting copper tube 4 is engaged with the polycarbonate layer 5, as shown... Figure 1-4 As shown; Example 2:

[0025] This embodiment further discloses, based on embodiment 1, including: a polycarbonate layer 5, which is sleeved on the outer wall of the limiting copper tube 4; a waterproof layer 6 is sleeved on the outer wall of the polycarbonate layer 5; the waterproof layer 6, the polycarbonate layer 5, and the limiting copper tube 4 are installed in a concentric circle; copper stranded wires 8 are arranged in a ring at equal intervals outside the waterproof layer 6; and a protective component is provided outside the copper stranded wires 8 to protect the optical fiber bundle 1 located inside the copper stranded wires 8 and prevent external seawater from corroding the internal structure. The copper stranded wire 8 passes through the cylindrical pipe formed by the aerogel layer 10, and the inner wall of the aerogel layer 10 is provided with a ring-shaped and equidistant limiting groove 9, and the limiting groove 9 is spirally arranged. A guide limiting strip 7 is provided between two adjacent copper stranded wires 8, and the guide limiting strip 7 and the copper stranded wire 8 are arranged in an interlaced ring. Referring to the attached diagrams in the instruction manual Figure 1-6 As shown, the polycarbonate layer 5 is engaged with the outer layer of the limiting copper tube 4, wherein the outer layer of the limiting copper tube 4 has a concave-convex structure, such as... Figure 1-4As shown, the outer wall of the limiting copper tube 4 engages with the inner wall of the polycarbonate layer 5 via a concave-convex structure. The polycarbonate layer 5 exhibits good impact resistance. The concave-convex structure of the outer surface of the polycarbonate layer 5 also engages with the waterproof layer 6, which is made of polyvinyl chloride. The limiting copper tube 4, polycarbonate layer 5, and waterproof layer 6 are installed concentrically. The concave-convex structure of the outer wall of the limiting copper tube 4, the inner and outer walls of the polycarbonate layer 5, and the inner wall of the waterproof layer 6 are all semi-circular structures. Figure 1-4 As shown, the guide limiting strip 7 and the copper stranded wire 8 are arranged in an alternating pattern on the outer wall of the waterproof layer 6, as... Figure 4 As shown, the guide limit strip 7 and the copper stranded wire 8 are armored structures. The guide limit strip 7 provides protection for the copper stranded wire 8. As the guide limit strip 7 wraps around the copper stranded wire 8, the connection stability between them is increased. The guide limit strip 7 is made of insulating rubber material. Example 3:

[0026] The protective strand 11 passes through the inside of the limiting groove 9; A polyethylene layer 12 is sleeved on the outside of the aerogel layer 10, and the polyethylene layer 12 and the aerogel layer 10 are arranged in concentric circles. The center of the polyethylene layer 12 is aligned with the center of the protective paraffin layer 2, and the inner wall of the polyethylene layer 12 is rotatably connected to the outer wall of the aerogel layer 10 and the protective strand 11. Polyurethane protective sleeve 13 is located at the top of the outer wall of polyethylene layer 12. Polyurethane protective sleeve 13 is engaged with polyurethane protective sleeve 2 14, and polyurethane protective sleeve 13 and polyurethane protective sleeve 2 14 form a ring structure. A polyurethane protective sleeve 213 is located at the bottom of the outer wall surface of the polyethylene layer 12. Referring to the attached diagrams in the instruction manual Figure 1-6 As shown, it is sleeved outside the guide limit strip 7 and the copper stranded wire 8, as... Figure 1-4 As shown, the protective strands 11, evenly spaced on the inner wall of the aerogel layer 10, converge the aerogel layer 10. The aerogel layer 10 penetrates the interior of the polyethylene layer 12. As the polyethylene layer 12 rotates and connects with the aerogel layer 10, and as seawater pushes the polyethylene layer 12 to rotate, excessive twisting of the polyethylene layer 12 on the aerogel layer 10 is reduced. The protective strands 11 located inside the aerogel layer 10 converge and limit the installation of the internally installed structure. The polyurethane protective sleeve 13 and polyurethane protective sleeve 14 installed on the outer wall of the polyethylene layer 12 are connected. Figure 1 As shown, the two semi-circular structures of polyurethane protective sleeve 13 and polyurethane protective sleeve 2 14 are interlocked to form a ring structure, as shown in the figure. Figure 6 As shown, the grooves on the outer walls of polyurethane protective sleeve 13 and polyurethane protective sleeve 2 14 are fitted with external limiting frames and installed at the bottom of the seabed.

[0027] Working principle: When using this corrosion-resistant submarine cable with a tension-damage-resistant structure, multiple fiber bundles 1 are wrapped by a protective paraffin layer 2, facilitating equidistant binding between the fiber bundles 1. Silicone sleeves 3, equidistantly fitted on the outer wall of the protective paraffin layer 2, keep the protective paraffin layer 2 inside the limiting copper tube 4. As the limiting copper tube 4, polycarbonate layer 5, and waterproof layer 6 are equidistantly fitted from the inside out, multiple layers of protection are formed to reduce the impact of external seawater erosion on the internal fiber bundles 1. With the guide limiting strip 7 and copper stranded wires 8 interlaced and equidistantly set, and with the guide limiting strip 7 wrapping around the outside of the copper stranded wires 8, seawater is prevented from entering the copper stranded wires 8 and damaging the fiber bundles 1. To improve the protection effect on the fiber bundles 1, an aerogel layer 10 is wrapped around the guide limiting strip. The outer layer of the positioning strip 7 and copper stranded wire 8 is fitted with a limiting groove 9 inside the aerogel layer 10 for the installation of the protective stranded wire 11. The protective stranded wire 11 is spirally wrapped around the outside, which increases the binding of the aerogel layer 10 and keeps the aerogel layer 10 stable. This prevents the entire submarine cable from entering the seawater and being pushed by the seawater, which would cause excessive twisting of the internal structure and increase the internal tension, thus damaging the internal optical fiber bundle 1. The polyurethane protective sleeve 13 located outside the polyethylene layer 12 works with the polyurethane protective sleeve 24 to limit the external movement of the submarine cable. The ring structure of the polyurethane protective sleeve 13 and the polyurethane protective sleeve 24 engaging with each other makes it easy to install the submarine cable in the designated line on the seabed with the limiting device, increasing the overall practicality.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant submarine cable with a structure to prevent tensile damage, comprising: The fiber bundle (1) is the fiber guide for the submarine optical cable. The fiber bundle (1) is used to transmit telecommunications signals and Internet signals. The features are as follows: the optical fiber bundle (1) penetrates the interior of the protective paraffin layer (2), and the protective paraffin layer (2) is a cylindrical strip structure. The protective paraffin layer (2) is equidistantly fitted with silicone sleeves (3), and the protective paraffin layer (2) penetrates the interior of the limiting copper tube (4). The limiting copper tube (4) is symmetrically provided with protruding structures on its outside. The center of the silicone sleeve (3) is aligned with the center of the protective paraffin layer (2), and the outer wall surface of the silicone sleeve (3) abuts against the inner wall surface of the limiting copper tube (4). A polycarbonate layer (5) is sleeved on the outer wall of the limiting copper tube (4). A waterproof layer (6) is sleeved on the outer wall of the polycarbonate layer (5). The waterproof layer (6) is installed in a concentric circle with the polycarbonate layer (5) and the limiting copper tube (4). Copper stranded wires (8) are arranged in a ring at equal intervals on the outside of the waterproof layer (6). A protective component is provided on the outside of the copper stranded wires (8) to protect the optical fiber bundle (1) located inside the copper stranded wires (8) and prevent external seawater from corroding the internal structure. The copper stranded wire (8) passes through the cylindrical pipe formed by the aerogel layer (10), and the inner wall of the aerogel layer (10) is provided with equidistant locating grooves (9) in an annular shape, and the locating grooves (9) are spirally arranged.

2. The corrosion-resistant submarine cable with anti-tension damage structure according to claim 1, characterized in that: The protective paraffin layer (2) is uniformly provided with optical fiber bundles (1), and the optical fiber bundles (1) are arranged radially with the center of the circle as the center.

3. The corrosion resistant submarine cable with anti-tension damage structure according to claim 1, characterized in that: The concave-convex structure on the outer wall of the limiting copper tube (4) engages with the concave-convex structure on the inner wall of the polycarbonate layer (5), and the concave-convex structure on the outer wall of the polycarbonate layer (5) engages with the concave-convex structure on the inner wall of the waterproof layer (6).

4. The corrosion resistant submarine cable with anti-tension damage structure according to claim 1, characterized in that: A guide limit strip (7) is provided between two adjacent copper strands (8), and the guide limit strip (7) and the copper strands (8) are arranged in an interlaced ring.

5. The corrosion resistant submarine cable with anti-tension damage structure according to claim 1, characterized in that: The protective components include: A protective strand (11) passes through the interior of the limiting groove (9); A polyethylene layer (12) is fitted over the aerogel layer (10), and the polyethylene layer (12) and the aerogel layer (10) are arranged in concentric circles; A polyurethane protective sleeve (13) is provided at the top of the outer wall surface of the polyethylene layer (12); A second polyurethane protective sleeve (14) is provided at the bottom of the outer wall surface of the polyethylene layer (12).

6. The corrosion resistant submarine cable with anti-tension damage structure according to claim 5, characterized in that: The center of the polyethylene layer (12) is aligned with the center of the protective paraffin layer (2), and the inner wall of the polyethylene layer (12) is rotatably connected to the outer wall of the aerogel layer (10) and the protective strand (11).

7. The corrosion resistant submarine cable with anti-tension damage structure according to claim 5, characterized in that: The polyurethane protective sleeve one (13) and the polyurethane protective sleeve two (14) are engaged and connected, and the polyurethane protective sleeve one (13) and the polyurethane protective sleeve two (14) form a ring structure.

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