An anti-corrosion optical cable for a marine navigation vessel

Abstract

The application discloses an anti-corrosion optical cable for a ship sailing on the sea, and belongs to the optical cable field. In the application, when a corrosion source adheres to the surface of an outer covering layer to form corrosion, heat is generated, trigger agent particles in a stress trigger block are decomposed to form gas, a large amount of heat is absorbed during the decomposition of the trigger agent particles, the rate of the corrosion source to the outer covering layer is delayed, the gathering of the gas generated by the decomposition of the trigger agent particles can compress the outer covering layer, until the outer covering layer is torn along the direction of a prefabricated tear groove, the outer covering layer part with the corrosion source is separated, and is contracted into a ball under the action of a reinforcing net, the corrosion source is wrapped in the ball, the corrosion source is less likely to continuously corrode the optical cable, the corrosion source is less likely to widely corrode the optical cable, the service life of the optical cable is less affected, and the optical cable is less likely to fail.

Description

Technical Field

[0001] This invention relates to the field of optical cables, and more specifically, to a corrosion-resistant optical cable for use on ships at sea. Background Technology

[0002] Optical cables are manufactured to meet optical, mechanical, or environmental performance specifications. They are communication cable assemblies that use one or more optical fibers encased in a protective sheath as the transmission medium and can be used individually or in groups. Optical cables are mainly composed of optical fibers, a plastic protective sheath, and a plastic outer sheath. They consist of a certain number of optical fibers arranged in a specific manner to form a cable core, encased in a sheath, and sometimes further covered with an outer protective layer, used to achieve optical signal transmission in a communication line.

[0003] With the development of the transportation industry, seagoing vessels have distinguished themselves in the transportation of bulk commodities due to their large tonnage and low transportation costs. In today's commercial transportation, maritime transport still accounts for a large proportion, and long-distance transport of most bulky raw materials such as ores and energy fuels still relies on shipping. Optical cables, as a fundamental piece of modern communication equipment, are also widely used in seagoing vessels, serving their daily operations.

[0004] Ships face a unique maritime environment. At sea, numerous sources of corrosion can affect the normal operation of optical cables. Once these sources of corrosion come into contact with the surface of the optical cable, they will cause continuous erosion and spread rapidly across the surface, resulting in extensive damage to the optical cable and affecting its service life. In severe cases, it can even cause the optical cable to fail. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this invention is to provide a corrosion-resistant optical cable for ships sailing at sea, which reduces the corrosion source from causing continuous erosion of the optical cable, prevents large-scale erosion of the optical cable, does not affect the service life of the optical cable, and does not cause optical cable failure.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A corrosion-resistant optical cable for marine vessels includes a protective adhesive layer. Multiple optical fiber bodies are inserted into the inner side of the protective adhesive layer. The protective adhesive layer comprises an outer sheath and an inner sheath. The outer sheath is fitted over the outer side of the inner sheath. A honeycomb unit spacer is provided between the outer sheath and the inner sheath. The honeycomb unit spacer is fixedly connected to both the outer sheath and the inner sheath. The honeycomb unit spacer is a honeycomb-shaped cylinder. Multiple stress trigger blocks matching the structure are placed inside the honeycomb unit spacer. The stress trigger blocks are fixedly connected to the inner sheath. Each stress trigger block includes a corrosion-resistant adhesive block with a filling cavity filled with multiple triggering agent particles. Multiple capillary cracks are chiseled at the end of the corrosion-resistant adhesive block near the outer sheath. Multiple pre-fabricated tear grooves matching the shape of the honeycomb unit spacer are chiseled at the end of the outer sheath near the stress trigger block. This reduces the risk of continuous corrosion from corrosion sources, prevents large-scale corrosion of the optical cable, minimizes the impact on the cable's lifespan, and reduces the likelihood of cable failure.

[0010] Furthermore, multiple reinforcing meshes matching the shape of the honeycomb unit septum are fixedly connected to the inner wall of the outer cladding. The reinforcing meshes have a tendency to shrink inward. After the outer cladding remnants fall off, the reinforcing meshes will roll the remnants into a ball, and the side containing the pollution source will be covered by the outer cladding remnants on its own inside, making it less likely for secondary pollution to occur.

[0011] Furthermore, the reinforcing mesh is woven from multiple elastic materials, which increases the overall elasticity of the reinforcing mesh and the strength of the outer coating. This makes the outer coating less prone to tearing under the combined action of gases generated by the decomposition of trigger particles and corrosion sources, and less likely to affect the detachment of the outer coating residue.

[0012] Furthermore, multiple corrosion-resistant fibers are fixedly connected to the reinforcing mesh. The ends of these fibers, away from the reinforcing mesh, extend into the outer coating to form a mesh structure, further increasing the strength of the outer coating and making it less prone to tearing during use. At the same time, the corrosion-resistant fibers that are exposed due to corrosion will form a three-dimensional spatial structure. After the outer coating falls off, the corrosion source is less likely to come into contact with the surface of the outer coating over a large area, reducing the possibility of the detached outer coating being completely corroded through and less likely to cause secondary pollution.

[0013] Furthermore, the multiple corrosion-resistant fibers are all in a three-dimensional spiral shape, which further increases the stability of the three-dimensional spatial structure formed by the multiple corrosion-resistant fibers and enhances its protective effect.

[0014] Furthermore, the outer coating has a smooth surface at the end near the stress trigger block, and all parts of the protective adhesive layer are made of biodegradable materials. After the outer coating remnants fall off, they can easily roll into the sea under the action of sea wind and degrade naturally in seawater, reducing the impact on the marine environment.

[0015] Furthermore, the end of the outer coating furthest from the stress trigger block is frosted, which makes it difficult for corrosion sources to spread rapidly on the surface of the outer coating, thus reducing the erosion range of the protective adhesive layer.

[0016] Furthermore, the protective adhesive layer and the honeycomb unit septum assembly are formed by hot pressing of the outer and inner coating layers.

[0017] Furthermore, the trigger particles contain fluorescent powder, which is released along with the gas produced by the decomposition of the trigger particles, forming a mark. This allows maintenance personnel to promptly observe damage to the outer coating at night when lighting conditions are poor, facilitating temporary repairs.

[0018] Furthermore, the multiple capillary cracks extend in parallel directions, and they are less likely to intersect after extending under high pressure gas. This makes it less likely to cause large-area peeling or large-area cracking of the corrosion-resistant adhesive block surface, less likely to cause the triggering agent particles to scatter, and less likely to cause secondary pollution.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the advantages of this invention are:

[0021] In this solution, when a corrosion source adheres to the surface of the outer coating and causes erosion, heat is generated. This heat is conducted through the outer coating to the stress trigger block, causing the trigger particles within the block to decompose and form gas. During the decomposition of the trigger particles, a large amount of heat is absorbed, slowing down the rate at which the corrosion source erodes the outer coating. As the gas generated by the decomposition of the trigger particles accumulates, it puts pressure on the outer coating until it tears along the direction of the pre-fabricated tear groove. This causes the outer coating contaminated with the corrosion source to detach and shrink into a ball under the action of the reinforcing mesh, encasing the corrosion source within itself. This reduces the likelihood of the corrosion source causing continuous erosion of the optical cable, preventing large-scale erosion, minimizing impact on the cable's lifespan, and reducing the risk of cable failure.

[0022] The spheres formed by the detached outer coating will roll into the ocean under the influence of external forces such as sea breezes, where they will naturally degrade, avoiding secondary pollution. Meanwhile, by incorporating fluorescent powder into the trigger particles, it will be ejected along with the gas produced by the decomposition of the trigger particles, forming a marker that makes it easy for maintenance personnel to observe the damage to the outer coating in a timely manner at night when the light is poor, facilitating temporary repairs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the anti-corrosion optical cable for ships according to the present invention;

[0024] Figure 2 This is a partial cross-sectional schematic diagram of the external protective structure for the anti-corrosion optical cable of the present invention;

[0025] Figure 3 This is a partial cross-sectional view of the external protective structure of the anti-corrosion optical cable of the present invention;

[0026] Figure 4 for Figure 3 Schematic diagram of the structure at point A;

[0027] Figure 5 This is a partial structural diagram of the anti-corrosion optical cable external protection structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the stress triggering block of the present invention;

[0029] Figure 7 This is a cross-sectional structural diagram of the stress triggering block of the present invention;

[0030] Figure 8 This is a schematic diagram illustrating the working principle of the anti-corrosion optical cable of the present invention;

[0031] Figure 9 This is a schematic cross-sectional view of the detached sphere formed in a localized area of ​​the protective structure of the present invention.

[0032] Figure 10 This is a schematic diagram of the corrosion-resistant fiber of the present invention.

[0033] Explanation of the labels in the diagram:

[0034] 1 Protective adhesive layer, 101 outer coating layer, 102 inner coating layer, 103 corrosion-resistant fiber, 104 reinforcing mesh, 105 prefabricated tear groove, 2 honeycomb unit compartment, 3 optical fiber body, 4 stress trigger block, 401 corrosion-resistant adhesive block, 402 triggering agent particles, 403 capillary crack. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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; it can be a connection within a compatible component. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] Example 1:

[0039] Please see Figure 1-7 A corrosion-resistant optical cable for marine vessels includes a protective adhesive layer 1. Multiple optical fiber bodies 3 are inserted into the inner side of the protective adhesive layer 1. The protective adhesive layer 1 comprises an outer sheath 101 and an inner sheath 102. The outer sheath 101 is fitted over the inner sheath 102. A honeycomb unit compartment 2 is provided between the outer sheath 101 and the inner sheath 102. The honeycomb unit compartment 2 is fixedly connected to both the outer sheath 101 and the inner sheath 102. The honeycomb unit compartment 2 is a honeycomb-shaped tube, and multiple optical fiber bodies 3 are placed inside the honeycomb unit compartment 2. The matching stress trigger block 4 is fixedly connected to the inner layer 102. The stress trigger block 4 includes a corrosion-resistant adhesive block 401. The corrosion-resistant adhesive block 401 has a filling cavity, which is filled with multiple trigger particles 402. The trigger particles 402 are preferably sodium bicarbonate particles. The corrosion-resistant adhesive block 401 has multiple capillary cracks 403 at one end near the outer layer 101. The outer layer 101 has multiple prefabricated tear grooves 105 at one end near the stress trigger block 4, which match the shape of the honeycomb unit septum 2.

[0040] This reduces the likelihood of corrosion sources causing continuous and widespread erosion of the optical cable, thus minimizing the impact on its lifespan and preventing cable failure.

[0041] Please see Figure 3-4 and Figure 8-10Multiple reinforcing meshes 104, matching the shape of the honeycomb unit septum 2, are fixedly connected to the inner wall of the outer cladding layer 101. The reinforcing meshes 104 have an inward contraction tendency. After the remnants of the outer cladding layer 101 fall off, the reinforcing meshes 104 will roll them up into a ball, with the side containing the contaminant being covered by the remnants of the outer cladding layer 101, preventing secondary contamination. The reinforcing meshes 104 are woven from multiple elastic materials, increasing the overall elasticity of the reinforcing meshes 104 and increasing the strength of the outer cladding layer 101. This makes the outer cladding layer 101 less prone to tearing under the combined action of gases generated from the decomposition of the trigger particles 402 and the corrosive source, thus minimizing the impact on the detachment of the remnants of the outer cladding layer 101. The reinforcing meshes 104 are fixedly connected to... Multiple corrosion-resistant fibers 103 are fixedly connected. The ends of the multiple corrosion-resistant fibers 103 away from the reinforcing mesh 104 extend into the outer coating layer 101 to form a mesh structure, which further increases the strength of the outer coating layer 101 and makes the outer coating layer 101 less likely to tear during use. At the same time, the corrosion-resistant fibers 103 that are exposed due to corrosion will form a three-dimensional spatial structure. After the outer coating layer 101 falls off, it makes it difficult for the corrosion source to come into contact with the surface of the outer coating layer 101 over a large area, reducing the possibility of the fallen outer coating layer 101 being completely corroded through, and making it less likely to cause secondary pollution. The multiple corrosion-resistant fibers 103 are all in a three-dimensional spiral shape, which further increases the stability of the three-dimensional spatial structure formed by the multiple corrosion-resistant fibers 103 and increases its protective effect.

[0042] The outer coating 101 has a smooth surface at the end near the stress triggering block 4. All parts of the protective adhesive layer 1 are made of biodegradable materials. After the remnants of the outer coating 101 fall off, they can easily roll into the sea under the action of sea wind and degrade naturally in seawater, reducing the impact on the marine environment. The end of the outer coating 101 away from the stress triggering block 4 is frosted, which makes it difficult for corrosion sources to spread rapidly on the surface of the outer coating 101, reducing the erosion range of the corrosion sources on the protective adhesive layer 1. In particular, while selecting biodegradable materials, the normal use of the protective adhesive layer 1 also needs to be considered. Since the protective adhesive layer 1 will be kept in the sea wind environment for a long time during use, the degradation time of the protective adhesive layer 1 is longer than the normal service life of the protective adhesive layer 1. At the same time, the corrosion sources in this application include, but are not limited to, highly corrosive components in seawater, such as high-salinity seawater and decaying organic matter, which will corrode the outer coating 101.

[0043] The protective adhesive layer 1 and the honeycomb unit cell 2 are assembled by hot pressing the outer coating layer 101 and the inner coating layer 102. In particular, the anti-corrosion work of the protective adhesive layer 1 is mainly concentrated in the middle part of the protective adhesive layer 1. The two ends of the protective adhesive layer 1 and the honeycomb unit cell 2 are usually located in the indoor environment, so there is no need to place the stress trigger block 4, which reduces the impact of the high temperature generated by the hot pressing work on the overall assembly of the protective adhesive layer 1 and the honeycomb unit cell 2. The trigger particles 402 are mixed with fluorescent powder. The fluorescent powder will be ejected with the gas generated by the decomposition of the trigger particles 402 to form a mark, which makes it easy for maintenance personnel to observe the damage to the outer coating layer 101 in time at night when the light is poor, and facilitates temporary repair work.

[0044] The multiple capillary cracks 403 extend in parallel directions. After the capillary cracks 403 extend under the action of high pressure gas, they are not likely to intersect. This makes it less likely to cause large-area peeling or large-area cracks on the surface of the corrosion-resistant adhesive block 401, less likely to cause the trigger particles 402 to scatter, and less likely to cause secondary pollution.

[0045] In particular, the structures in this solution are not drawn strictly according to the corresponding proportions. Those skilled in the art can make reasonable designs for the dimensions of each structure according to actual needs. In addition, during normal installation, optical cables are mostly buried indoors or in enclosed environments. This solution can make reasonable designs for the position of the protective adhesive layer 1 according to the user's pre-design requirements. Optical cables in indoor or enclosed environments can directly use traditional outer protective layers, while for outdoor parts, the protective adhesive layer 1 of this solution is selected. The above installation can be achieved through the pre-design of those skilled in the art, so it is not disclosed in detail in this application.

[0046] In this scheme, when the corrosion source contaminates the surface of the outer coating 101 and causes erosion of the outer coating 101, heat is generated. The heat is conducted through the outer coating 101 to the stress trigger block 4, causing the triggering agent particles 402 in the stress trigger block 4 to decompose and form gas. During the decomposition of the triggering agent particles 402, a large amount of heat is absorbed, which slows down the rate at which the corrosion source erodes the outer coating 101. As the gas generated by the decomposition of the triggering agent particles 402 accumulates, it will put pressure on the outer coating 101 until the outer coating 101 tears along the direction of the pre-made tear groove 105, causing the outer coating 101 contaminated with the corrosion source to detach. Under the action of the reinforcing mesh 104, it shrinks into a ball, wrapping the corrosion source inside itself. This reduces the corrosion source from causing continuous erosion of the optical cable, prevents large-scale erosion of the optical cable, reduces the service life of the optical cable, and reduces the risk of optical cable failure.

[0047] The spheres formed by the detached outer coating 101 will roll into the ocean under the influence of external forces such as sea breezes, where they will naturally degrade and avoid secondary pollution. Meanwhile, by incorporating fluorescent powder into the trigger particles 402, they will be ejected along with the gas produced by the decomposition of the trigger particles 402, forming a marker. This allows maintenance personnel to promptly observe the damage to the outer coating 101 when the light is poor at night, facilitating temporary repairs.

[0048] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A corrosion-resistant optical cable for use on ships at sea, comprising a protective adhesive layer (1), characterized in that: Multiple optical fiber bodies (3) are inserted into the inner side of the protective adhesive layer (1). The protective adhesive layer (1) includes an outer cladding layer (101) and an inner cladding layer (102). The outer cladding layer (101) is sleeved on the outside of the inner cladding layer (102). A honeycomb unit partition (2) is provided between the outer cladding layer (101) and the inner cladding layer (102). The honeycomb unit partition (2) is fixedly connected to the outer cladding layer (101) and the inner cladding layer (102) respectively. The honeycomb unit partition (2) is a honeycomb-shaped tube. Multiple optical fiber bodies (3) matching its own shape are placed inside the honeycomb unit partition (2). The stress triggering block (4) is fixedly connected to the inner layer (102). The stress triggering block (4) includes a corrosion-resistant adhesive block (401). A filling cavity is drilled in the corrosion-resistant adhesive block (401). The filling cavity is filled with multiple triggering agent particles (402). Multiple capillary cracks (403) are drilled at one end of the corrosion-resistant adhesive block (401) near the outer layer (101). Multiple prefabricated tear grooves (105) matching the shape of the honeycomb unit septum (2) are drilled at one end of the outer layer (101) near the stress triggering block (4).

2. The corrosion-resistant optical cable for marine vessels according to claim 1, characterized in that: Multiple reinforcing meshes (104) matching the shape of the honeycomb unit cylinder (2) are fixedly connected to the inner wall of the outer covering layer (101), and the reinforcing meshes (104) have a tendency to shrink inward.

3. The corrosion-resistant optical cable for marine vessels according to claim 2, characterized in that: The reinforcing mesh (104) is woven from multiple elastic materials to increase the overall elasticity of the reinforcing mesh (104).

4. The corrosion-resistant optical cable for marine vessels according to claim 2, characterized in that: Multiple corrosion-resistant fibers (103) are fixedly connected to the reinforcing mesh (104), and one end of the multiple corrosion-resistant fibers (103) away from the reinforcing mesh (104) extends into the outer covering layer (101) to form a mesh structure.

5. The corrosion-resistant optical cable for marine vessels according to claim 4, characterized in that: All of the corrosion-resistant fibers (103) are in a three-dimensional spiral shape.

6. The corrosion-resistant optical cable for marine vessels according to claim 1, characterized in that: The outer coating (101) has a smooth surface at one end near the stress trigger block (4), and each part of the protective adhesive layer (1) is made of biodegradable material.

7. The corrosion-resistant optical cable for marine vessels according to claim 1, characterized in that: The outer coating (101) has a frosted finish at the end furthest from the stress trigger block (4).

8. The corrosion-resistant optical cable for marine vessels according to claim 1, characterized in that: The protective adhesive layer (1) and the honeycomb unit compartment (2) assembly are formed by hot pressing of the outer cover layer (101) and the inner cover layer (102).

9. A corrosion-resistant optical cable for marine vessels according to claim 1, characterized in that: The trigger particles (402) are doped with fluorescent powder.

10. A corrosion-resistant optical cable for marine vessels according to claim 1, characterized in that: The directions in which the multiple capillary cracks (403) extend are parallel to each other.

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