Lightweight watertight cable for ships

Abstract

This utility model discloses a lightweight watertight cable for ships, relating to the field of watertight cable technology. It solves the technical problems of insufficient structural strength, poor wear resistance, and substandard waterproof performance in existing watertight cables for ships. The cable includes a conductor core structure and an outer sheath wrapped around the conductor core structure. It also includes a cable inner body disposed between the conductor core structure and the outer sheath. The cable inner body includes an inner sheath, a reinforcing layer, a buffer layer, and a waterproof layer. The buffer layer is disposed outside the waterproof inner layer, the reinforcing layer is disposed outside the buffer layer, and the inner sheath is disposed outside the reinforcing layer. The waterproof layer includes a waterproof outer layer and a waterproof inner layer. The waterproof inner layer is disposed outside the shielding layer, and the waterproof outer layer is disposed between the outer side of the inner sheath and the inner side of the outer sheath. The cable of this utility model significantly improves the cable's waterproofness, mechanical strength, signal transmission stability, and durability, while also being significantly lighter.

Description

Technical Field

[0001] This utility model belongs to the field of watertight cable technology, and particularly relates to a lightweight watertight cable for ships. Background Technology

[0002] Watertight cables are special cables designed specifically for underwater or humid environments. They mainly consist of a conductor, an insulation sleeve, and a sheath. Used for underwater power transmission, they possess excellent waterproof performance and mechanical strength, and are widely used in marine engineering, shipbuilding, water conservancy and hydropower, and other fields.

[0003] Currently, lightweight ships use watertight cables protected by external sheaths. However, these cables still suffer from several drawbacks, such as insufficient structural strength, poor abrasion resistance, and inadequate waterproofing. These issues limit their service life and make them unable to meet the stringent demands of today's market.

[0004] Therefore, based on the above problems, we designed a lightweight watertight cable for ships. Utility Model Content

[0005] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a lightweight watertight cable for ships, which solves the technical problems of insufficient structural strength, poor wear resistance, and substandard waterproof performance of existing watertight cables for ships.

[0006] To achieve the above objectives, a lightweight watertight cable for ships is proposed according to an embodiment of the first aspect of the present invention, comprising a core structure and an outer sheath wrapped around the core structure.

[0007] Also includes:

[0008] The cable inner body is disposed between the conductor core structure and the outer sheath, and the cable inner body includes an inner sheath, a reinforcing layer, a buffer layer and a waterproof layer;

[0009] The buffer layer is disposed outside the waterproof inner layer, the reinforcement layer is disposed outside the buffer layer, and the inner protective layer is disposed outside the reinforcement layer;

[0010] The waterproof layer includes a waterproof outer layer and a waterproof inner layer. The waterproof inner layer is disposed outside the shielding layer, and the waterproof outer layer is disposed between the outside of the inner protective layer and the inside of the outer protective sleeve.

[0011] A further improvement is that the conductor structure includes several arrays of conductors, an insulating sleeve wrapped around each conductor, a shielding layer wrapped around the insulating sleeve, and a filling layer filling the gap between the insulating sleeve and the shielding layer.

[0012] A further improvement is that the reinforcing layer is an aluminum strip wrapped around the outside of the buffer layer.

[0013] A further improvement is that the inner protective layer is an aluminum-plastic composite strip wrapped around the outside of the reinforcing layer.

[0014] A further improvement is that the buffer layer is a layer of fiberglass buffer tape wrapped around the outside of the waterproof inner layer.

[0015] A further improvement is that an additional outer coating layer is provided, which includes a flame-retardant coating layer, an antioxidant coating layer, and a corrosion-resistant coating layer sequentially coated on the outside of the outer sheath.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) This utility model comprises an inner sheath, a reinforcing layer, a buffer layer, and a waterproof layer for the inner body of the cable. The waterproof layer consists of a waterproof outer layer and a waterproof inner layer. The waterproof outer layer is a water-blocking tape that wraps around the outside of the inner sheath and is located inside the outer sheath. The waterproof inner layer is a water-blocking yarn that wraps around the outside of the shielding layer. This design expands to form a gel when exposed to water, effectively blocking the longitudinal diffusion of moisture into the gaps between the cable cores, thereby significantly improving the waterproof performance of the cable.

[0018] (2) This utility model incorporates a reinforcing layer, an inner sheath, and a buffer layer within the cable. The reinforcing layer is made of aluminum tape, wrapped around the outside of the buffer layer; the inner sheath is made of aluminum-plastic composite tape, wrapped around the outside of the reinforcing layer; and the buffer layer is made of fiberglass buffer tape, wrapped around the outside of the waterproof inner layer. This design utilizes the high tensile strength and modulus of fiberglass, enabling it to withstand significant external forces without easily breaking, effectively resisting external compression and impact, and enhancing the overall mechanical strength of the cable. The lightweight aluminum tape reduces the overall weight of the cable while maintaining mechanical strength, facilitating installation and transportation. The aluminum-plastic composite tape not only works with the shielding layer to shield against external electromagnetic interference, ensuring the stability and accuracy of signal transmission within the cable and preventing signal leakage, but also provides buffering and protection, preventing the metal layer from directly contacting the outside environment and being corroded or damaged, further enhancing the mechanical strength of the cable.

[0019] (3) The cable of this utility model is also provided with a flame-retardant and fireproof coating layer. This coating layer can not only improve the flame-retardant performance of the cable, but also enhance its corrosion resistance, slow down the aging of the cable, and thus extend its service life. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the overall partial cross-sectional structure of this utility model.

[0023] Marked in the image:

[0024] 1. Outer sheath;

[0025] 2. Conductor core structure; 21. Shielding layer; 22. Insulating sleeve; 23. Conductor;

[0026] 3. Cable inner body; 31. Inner sheath; 32. Reinforcing layer; 33. Buffer layer; 34. Waterproof layer; 341. Waterproof outer layer; 342. Waterproof inner layer;

[0027] 4. Exterior coating layer; 41. Flame-retardant and fireproof coating layer; 42. Corrosion-resistant coating layer. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] like Figures 1 to 3 As shown, a lightweight watertight cable for ships includes a core structure 2 and an outer sheath 1 wrapped around the core structure 2.

[0030] Specifically, the core structure 2 includes several arrays of conductors 23, an insulating sleeve 22 wrapped around each conductor 23, a shielding layer 21 wrapped around the insulating sleeve 22, and a filling layer 24 filling the gap between the insulating sleeve 22 and the shielding layer 21.

[0031] The inner cable body 3 is disposed between the conductor core structure 2 and the outer sheath 1. The inner cable body 3 includes an inner sheath 31, a reinforcing layer 32, a buffer layer 33 and a waterproof layer 34.

[0032] The buffer layer 33 is disposed outside the waterproof inner layer 342, the reinforcing layer 32 is disposed outside the buffer layer 33, and the inner protective layer 31 is disposed outside the reinforcing layer 32.

[0033] The waterproof layer 34 includes a waterproof outer layer 341 and a waterproof inner layer 342. The waterproof outer layer 341 is a water-blocking tape. The waterproof inner layer 342 is wrapped around the outside of the shielding layer 21 and is a water-blocking yarn. The waterproof outer layer 341 is wrapped around the outside of the inner sheath 31 and is located inside the outer sheath 1. This design can expand to form a gel when exposed to water, blocking the longitudinal diffusion of water into the gap between the cable cores, thereby effectively improving the waterproof performance of the cable.

[0034] Specifically, the reinforcing layer 32 is an aluminum strip wrapped around the outside of the buffer layer 33. Because the aluminum strip is lightweight, it can reduce the overall weight of the cable while ensuring a certain mechanical strength, making it easier to install and transport.

[0035] Specifically, the inner sheath 31 is an aluminum-plastic composite strip wrapped around the outside of the reinforcing layer 32. This material, in conjunction with the shielding layer 21, can effectively shield external electromagnetic interference, ensuring the stability and accuracy of signal transmission inside the cable and preventing internal signals from radiating outwards. It also acts as a buffer and protector, preventing the metal layer from direct contact with the outside environment and thus avoiding corrosion or damage, further enhancing the overall mechanical strength.

[0036] Specifically, the buffer layer 33 is a layer of glass fiber buffer strip wrapped around the outside of the waterproof inner layer 342. Because glass fiber has high tensile strength and modulus, this design can withstand greater external force without easily breaking, effectively resisting external compression and impact, and improving the overall mechanical strength.

[0037] like Figure 3 As shown, another implementation scheme is also provided:

[0038] An additional outer coating layer 4 is provided, which includes a flame-retardant and fireproof coating layer 41 and a corrosion-resistant coating layer 42 that are sequentially coated on the outside of the outer sheath 1.

[0039] Specifically, the flame-retardant and fireproof coating layer 41 is designed as a coating layer, which can improve the flame-retardant performance of the cable to a certain extent, while also improving the corrosion resistance of the cable, thereby slowing down the aging of the cable and further extending the service life of the cable.

[0040] like Figures 1 to 3 As shown in this embodiment, it should also be noted that the actual dimensions of each component in the application document are selected for installation based on actual site requirements before implementation; the cable and its inner body are manufactured according to existing production processes. Furthermore, it should be noted that this application document only addresses the shortcomings of existing watertight cables for ships, such as insufficient structural strength, poor wear resistance, and inadequate waterproofing, and does not cover other aspects; the working principle of this lightweight watertight cable for ships is described below:

[0041] This novel cable design significantly improves the cable's waterproofness, mechanical strength, signal transmission stability, and durability. The cable's inner body 3 consists of an inner sheath 31, a reinforcing layer 32, a buffer layer 33, and a waterproof layer 34. The waterproof layer 34 comprises a waterproof outer layer 341 and a waterproof inner layer 342. The waterproof outer layer 341 is a water-blocking tape, wrapped around the inner sheath 31 and located inside the outer sheath 1; the waterproof inner layer 342 is a water-blocking yarn, wrapped around the shielding layer 21. This design expands upon contact with water to form a gel, effectively preventing moisture from diffusing longitudinally along the cable to the gaps between the cable cores, thereby significantly improving the cable's waterproof performance.

[0042] The reinforcing layer 32 is made of aluminum tape and wrapped around the outside of the buffer layer 33; the inner sheath 31 is an aluminum-plastic composite tape and wrapped around the outside of the reinforcing layer 32; the buffer layer 33 is made of fiberglass buffer tape and wrapped around the outside of the waterproof inner layer 342. Fiberglass has high tensile strength and modulus, can withstand large external forces without easily breaking, effectively resisting external compression and impact, and improving the overall mechanical strength of the cable. The aluminum tape is lightweight, reducing the overall weight of the cable while ensuring mechanical strength, facilitating installation and transportation. The aluminum-plastic composite tape not only works with the shielding layer 21 to shield against external electromagnetic interference, ensuring the stability and accuracy of signal transmission inside the cable and preventing signal leakage, but also acts as a buffer and protector, preventing the metal layer from direct contact with the outside environment and being corroded or damaged, further enhancing the mechanical strength of the cable.

[0043] In addition, the cable is also equipped with a flame-retardant and fire-resistant coating layer 41. This coating layer not only improves the flame-retardant performance of the cable, but also enhances its corrosion resistance, slows down cable aging, and thus extends its service life.

[0044] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A lightweight watertight cable for ships, comprising a core structure (2) and an outer sheath (1) wrapped around the core structure (2). characterized in that Also includes: The inner cable body (3) is disposed between the conductor core structure (2) and the outer sheath (1). The inner cable body (3) includes an inner sheath (31), a reinforcing layer (32), a buffer layer (33) and a waterproof layer (34). The waterproof layer (34) includes a waterproof outer layer (341) and a waterproof inner layer (342). The waterproof inner layer (342) is disposed outside the shielding layer (21), and the waterproof outer layer (341) is disposed between the outer side of the inner protective layer (31) and the inner side of the outer sheath (1). The buffer layer (33) is disposed outside the waterproof inner layer (342), the reinforcing layer (32) is disposed outside the buffer layer (33), and the inner protective layer (31) is disposed outside the reinforcing layer (32).

2. The lightweight watertight cable for ships according to claim 1, characterized in that, The conductor structure (2) includes a plurality of arrays of conductors (23), an insulating sleeve (22) wrapped around each conductor (23), a shielding layer (21) wrapped around the insulating sleeve (22), and a filling layer (24) filling the gap between the insulating sleeve (22) and the shielding layer (21).

3. A lightweight watertight cable for ships according to claim 2, characterized in that, The reinforcing layer (32) is an aluminum strip wrapped around the outside of the buffer layer (33).

4. A lightweight watertight cable for ships according to claim 3, characterized in that, The inner protective layer (31) is an aluminum-plastic composite strip wrapped around the outside of the reinforcing layer (32).

5. A lightweight watertight cable for ships according to claim 1, characterized in that, The buffer layer (33) is a layer of glass fiber buffer tape wrapped around the outside of the waterproof inner layer (342).

6. A lightweight watertight cable for ships according to claim 3, characterized in that, An additional outer coating layer (4) is provided, which includes a flame-retardant and fireproof coating layer (41), an antioxidant coating layer (42), and a corrosion-resistant coating layer (43) that are sequentially coated on the outside of the outer sheath (1).

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