Water-blocking and moisture-proof composite cable for ships

Abstract

The invention, which relates to the technical field of the cable, discloses a waterproof and moistureproof composite cable for a vessel, comprising an inner core and a protection mechanism for self-repairing a corrosion position, and the protection mechanism is successively provided with an inner protection layer, a repairing layer and an outer protection layer from inside to outside. In the use process of the cable, through the protection mechanism, firstly, three protection layers made of different materials are arranged, so that the corrosion condition can be reduced after the cable is corroded by saline water, and infiltrated water stains can be repaired through the internal protection layer when the cable is inevitable or corroded, so that the service life of the cable is prolonged. And meanwhile, the air holes of the inner protection layer are blocked to prevent subsequent water stains from entering, and the generated holes are blocked by utilizing the temperature generated by the inner core, so that a self-repairing effect is achieved, and continuous permeation of the water stains is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of cables, and in particular to a comprehensive cable for water-blocking and moisture-proof ships. Background Art

[0002] When a ship is sailing at sea, the surrounding humidity is extremely high, and seawater may contact the cable at any time for various reasons. If the cable is not waterproof and moisture-proof, the intrusion of water will seriously affect the insulation performance of the cable. Water, especially salty seawater, will accelerate the corrosion of the metal parts of the cable, reducing the mechanical strength and service life of the cable. Water entering the cable may cause the insulation resistance to drop, causing leakage or even short circuit, which poses a serious threat to the ship's electrical system and personnel safety. A cable structure designed for use on ships has active water and moisture blocking functions, which can provide full-section water blocking functions in both radial and longitudinal directions of the cable. This cable includes several tinned copper cores, loose tubes and water blocking grease for fixing the cable cores. In addition, it also contains aluminum-plastic composite tape and water blocking tape, as well as elastic supports for fixing the armor layer; However, due to the above reasons, although it has a waterproof effect, as the ship is sailing on the sea, the cable will inevitably come into contact with seawater (some cables are located inside the cabin. Although the cables will not directly come into contact with seawater, the cabin will always be in a salt spray state. Because the cabin where the cables are concentrated has a high external temperature at this time, the moisture will be converted into water vapor, causing salt spray in the air). The salt spray will also adhere to the surface of the cable, causing salt water to adhere to the surface of the cable, causing seawater to corrode the surface of the cable all the time. As the corrosion continues, (the high humidity environment inside the cabin may also cause water vapor to condense on the surface of the cable. The salt and other minerals after the seawater evaporates may condense on the cable along with the water vapor), and the existing cables cannot repair themselves when they are corroded. Summary of the invention

[0003] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technologies. An embodiment of the present invention provides a water-blocking and moisture-proof integrated cable for ships to solve the technical problem that the existing ship cables cannot repair themselves after being corroded by seawater.

[0004] The embodiment of the present invention adopts the following technical solution: a water-blocking and moisture-proof integrated cable for ships, an inner core, and also includes a protection mechanism for self-repairing the corrosion position, wherein the protection mechanism is sequentially provided with an inner protective layer, a repair layer and an outer protective layer from the inside to the outside.

[0005] Furthermore, the inner protective layer is provided with a plurality of narrow and long air holes to facilitate deformation.

[0006] Furthermore, the inner protective layer is made of a water-swelling material, such as synthetic rubber or sodium polyacrylate.

[0007] Furthermore, the repair layer is made of a hollow material, and the repair layer is filled with a molten filling layer.

[0008] Furthermore, the molten filling layer is made of a hot-melt and cold-solidified material, such as a thermoplastic resin.

[0009] Furthermore, the outer protective layer is made of a hydrochloric acid corrosion resistant material, such as polytetrafluoroethylene and chloroprene rubber.

[0010] Compared with the prior art, the beneficial effects of the present invention are: First, during use, a protective mechanism is provided. When the cable surface is inevitably corroded, the repair layer will be further corroded. At this time, seawater will enter the inner protective layer through the air holes. However, the inner protective layer is made of a water-absorbing and expanding material. Therefore, the inner protective layer will absorb the water stains that have penetrated into it. At the same time, the inner protective layer will expand and change, causing the air holes to deform and become blocked. At this time, the inner protective layer is in a completely wrapped state. At the same time, the air permeability of the inner protective layer is relatively poor, and the air holes for heat dissipation are blocked. The inner core of the cable is in a The heat generated during use cannot be effectively dissipated, and the temperature of the cable core is getting higher and higher. When the molten filling layer is melted by the temperature change, it will flow to block the corroded holes, so that water stains cannot continue to enter the blocked holes. However, at this time, there is still water in the inner protective layer until the water stains in the inner protective layer are dried by the temperature of the cable. The water vapor is mixed with the molten glue, and the molten glue will not be absorbed by the inner protective layer. When the water stains in the inner protective layer are dried by the temperature, the air holes on the inner protective layer are reopened, thereby restoring the heat dissipation effect of the cable; To sum up, during the use of the cable, the protection mechanism can firstly reduce the corrosion after being corroded by salt water by setting three protective layers of different materials. And when corrosion is inevitable, the infiltrated water stains can be repaired by the internal protective layer. At the same time, the air holes of the inner protective layer are blocked to prevent subsequent water stains from entering. Then, the temperature generated by the inner core is used to block the generated holes, thereby playing a self-repairing role and preventing water stains from continuing to penetrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0013] Reference numerals: 1. Inner core; 2. Inner protective layer; 21. Air vents; 3. Repair layer; 31. Melt filling layer; 5. Outer protective layer. DETAILED DESCRIPTION

[0014] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0015] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0016] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] Combine the following Figures 1 to 3 As shown, an embodiment of the present invention provides a water-blocking and moisture-proof integrated cable for ships, an inner core 1, and also includes a protection mechanism for self-repairing the corrosion position, wherein the protection mechanism is provided with an inner protective layer 2, a repair layer 3 and an outer protective layer 5 in sequence from the inside to the outside.

[0020] During the use of the cable, the protection mechanism can firstly reduce the corrosion after being corroded by salt water by setting three protective layers of different materials. When corrosion is inevitable, the inner protective layer 2 can repair the infiltrated water stains. At the same time, the air holes 21 of the inner protective layer 2 are blocked to prevent subsequent water stains from entering. Then, the temperature generated by the inner core 1 is used to block the generated holes, thereby playing a self-repairing role and preventing water stains from continuing to penetrate.

[0021] Specifically, the inner protective layer 2 is provided with a plurality of narrow and long air holes 21 for easy deformation.

[0022] During operation, the narrow and long air holes 21 are more unstable than the center of the circle. When the holes swell due to water absorption, they are more likely to close, thereby preventing water from further infiltrating.

[0023] Specifically, the inner protective layer 2 is made of a water-absorbing and swelling material, such as synthetic rubber or sodium polyacrylate.

[0024] During operation, since the inner protective layer 2 is made of water-absorbing and expanding material, when the corroded seawater penetrates into the inner protective layer 2, the inner protective layer 2 can absorb the infiltrated water to prevent the water from directly passing through the inner protective layer 2 and contacting the inner core 1. At the same time, the expanded material can also play a protective role.

[0025] Specifically, the repair layer 3 is made of a hollow material, and the repair layer 3 is filled with a molten filling layer 31 .

[0026] Specifically, the molten filling layer 31 is made of a hot-melt and cold-hardening material, such as a thermoplastic resin, and the melting point is less than 70°.

[0027] During operation, due to the melting point of thermoplastic resin less than 70°, when the cable temperature is affected by the closed inner protective layer 2, the temperature cannot be dissipated normally, causing the temperature of the inner core 1 to gradually increase. At this time, the temperature of the inner core 1 can reach a maximum of 90°, so that the molten filling layer 31 can be melted and flowed.

[0028] Specifically, the outer protective layer 5 is made of a hydrochloric acid corrosion resistant material, such as polytetrafluoroethylene and chloroprene rubber.

[0029] Working principle: During use, a protective mechanism is provided. When the cable surface is inevitably corroded, the repair layer 3 will be further corroded. At this time, seawater will enter the inner protective layer 2 through the air holes 21. However, the inner protective layer 2 is made of a water-absorbing and expanding material. Therefore, the inner protective layer 2 will absorb the infiltrated water stains. At the same time, the inner protective layer 2 will expand and change, causing the air holes 21 to deform and become blocked. At this time, the inner protective layer 2 is in a completely wrapped state. At the same time, the air permeability of the inner protective layer 2 is relatively poor, and the air holes 21 for heat dissipation are blocked. The heat generated by the cable core 1 during use cannot be effectively dissipated. Since the melting point of the thermoplastic resin is less than 70°, When the cable temperature is affected by the closed inner protective layer 2, the temperature cannot be dissipated normally, causing the temperature of the inner core 1 to gradually increase. At this time, the maximum temperature of the inner core 1 can reach 90°. The temperature of the cable inner core 1 is getting higher and higher. When the molten filling layer 31 is melted by the temperature change, it will flow to block the corroded holes, so that water stains cannot continue to enter the blocked holes. However, since there is still water in the inner protective layer 2 at this time, the water stains in the inner protective layer 2 will be dried under the temperature of the cable heating, and the water vapor will be mixed with the molten glue, and the molten glue will not be adsorbed by the inner protective layer 2. When the water stains in the inner protective layer 2 are dried by the temperature, the air holes 21 on the inner protective layer 2 are reopened, thereby restoring the heat dissipation effect of the cable. To sum up, during the use of the cable, the protection mechanism can firstly reduce the corrosion after being corroded by salt water by setting three protective layers of different materials, and when corrosion is inevitable, the internal inner protective layer 2 can repair the infiltrated water stains, and at the same time, the air holes 21 of the inner protective layer 2 are blocked to prevent subsequent water stains from entering, and then the temperature generated by the inner core 1 is used to block the generated holes, thereby playing a self-repairing role and preventing water stains from continuing to penetrate.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water-blocking and moisture-proof integrated cable for ships, comprising an inner core (1), characterized in that: It also comprises a protection mechanism for autonomously repairing the corroded position, wherein the protection mechanism is provided with an inner protection layer (2), a repair layer (3) and an outer protection layer (5) in sequence from the inside to the outside.

2. The water-blocking and moisture-proof integrated cable for ships according to claim 1, characterized in that; The inner protective layer (2) is provided with a plurality of narrow and long air holes (21) which allow the inner protective layer (2) to be easily deformed.

3. The water-blocking and moisture-proof integrated cable for ships according to claim 1, characterized in that; The inner protective layer (2) is made of a water-absorbing and swelling material, such as synthetic rubber or sodium polyacrylate.

4. The water-blocking and moisture-proof integrated cable for ships according to claim 1, characterized in that: The repair layer (3) is made of a hollow material, and the repair layer (3) is filled with a molten filling layer (31).

5. The water-blocking and moisture-proof integrated cable for ships according to claim 1, characterized in that; The molten filling layer (31) is made of a hot-melt and cold-solidified material, such as a thermoplastic resin.

6. The water-blocking and moisture-proof integrated cable for ships according to claim 1, characterized in that; The outer protective layer (5) is made of a hydrochloric acid corrosion resistant material, such as polytetrafluoroethylene and chloroprene rubber.

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