Three-core cable for ship

Abstract

The utility model provides a three-core cable for a vessel, which comprises an insulating layer and a cable core, the annular side surface of the cable core is wrapped with the insulating layer, a reinforcing assembly is arranged between an armor layer and an outer sheath, and a buffer assembly is arranged between the armor layer and the insulating layer. The cable core is provided with the first shielding layer and the second shielding layer, so that the anti-dragging capability of the cable core is better, the second shielding layer further improves the anti-electromagnetic interference capability of the cable core, the plurality of buffer strips are arranged, most of external collision impact force can be buffered and adsorbed, the anti-collision capability of the cable core is improved, and the first flame-retardant layer and the second flame-retardant layer are arranged, so that the anti-collision capability of the cable core is improved. Meanwhile, the second reinforcing layer can further improve the heat resistance and the tensile strength of the first flame-retardant layer and the second flame-retardant layer, and the first reinforcing layer can further improve the heat-resistant and flame-retardant capability between the inner sheath and the outer sheath.

Description

Technical Field

[0001] The utility model relates to the technical field of ship cables, and specifically is a three-core cable for ships. Background Art

[0002] Marine cables are a type of wire and cable used for power, lighting, control, and communication transmission on various ships on rivers and seas and offshore or offshore buildings, including marine power cables, marine control cables, marine communication cables, etc.

[0003] Publication number "CN217767936U" provides a new type of high-temperature resistant ship cable. By setting up several groups of second buffer glue and buffer layers and five groups of first buffer glue and cylindrical colloids, when the cable is squeezed, the second buffer glue and the first buffer glue can provide buffering properties to protect the integrity of the five groups of conductive cores. Several insulation cottons are fixedly installed on the outer surface of the circumference of the sheath, which can provide high-temperature resistance to the internal conductive core. The filling glue filled on the outer surface of the five groups of insulation layers and the external expansion mechanism further protects the internal conductive core.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] Although the cable is buffered and protected by the second buffer rubber and the first buffer rubber, since the second buffer rubber and the first buffer rubber are both solid structures, this buffer structure not only increases the cable's own weight, but also has a poor buffering effect during actual use. The cable also has weak flame retardancy and anti-electromagnetic interference capabilities, and its practicality needs to be improved. Utility Model Content

[0006] The utility model aims to provide a three-core cable for ships to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A three-core cable for ships comprises an outer sheath, an armor layer, an insulating layer and a cable core, wherein the cable core is arranged inside the outer sheath, the annular side of the cable core is wrapped with an insulating layer, an armor layer is arranged between the insulating layer and the outer sheath, a reinforcement component is arranged between the armor layer and the outer sheath, and the reinforcement component is used to improve the flame retardancy of the cable, and a buffer component is arranged between the armor layer and the insulating layer, and the buffer component is used to improve the anti-collision ability of the cable core.

[0009] Preferably, the reinforcement component comprises a first reinforcement layer and a second reinforcement layer, the inner sheath is wrapped inside the outer sheath, and the first reinforcement layer is wound between the inner sheath and the outer sheath.

[0010] Preferably, a first flame retardant layer is arranged inside the inner sheath, a second flame retardant layer is arranged inside the first flame retardant layer, and a second reinforcing layer is wrapped between the first flame retardant layer and the second flame retardant layer.

[0011] Preferably, the first reinforcement layer is made of woven graphite fibers, the second reinforcement layer is made of woven glass fiber high-temperature wires, the inner sheath is made of low-phenyl silicone rubber, and the first flame retardant layer and the second flame retardant layer are both made of halogen-free flame retardant silicone rubber.

[0012] Preferably, the buffer assembly includes a buffer strip and a first inner lining layer, a plurality of buffer strips are arranged inside the armor layer, and the plurality of buffer strips have the same specifications, and a first inner lining layer is arranged inside the buffer strip.

[0013] Preferably, a second lining layer is arranged inside the first lining layer, a second shielding layer is wrapped between the first lining layer and the second lining layer, a limiting groove is opened on the annular side of the first lining layer, and the limiting groove matches the buffer strip, and the second lining layer is filled with insulating filler.

[0014] Preferably, the second shielding layer is made of metal foil, the first lining layer and the second lining layer are both made of high tear-resistant silicone rubber, the buffer strip is a hollow structure, the buffer strip is made of EVA foam, and the insulating filler is made of talcum powder.

[0015] Preferably, the annular side surface of the insulating layer is wrapped with a first shielding layer, the annular side surface of the first shielding layer is wrapped with a temperature-resistant layer, the outer sheath is made of solution-polymerized styrene-butadiene rubber, and the armor layer is made of armor tape.

[0016] Preferably, the first shielding layer is made of braided metal wires, the insulating layer is made of EPDM rubber, and the temperature-resistant layer is made of butyl rubber.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In the process of using the ship cable, the first flame retardant layer and the second flame retardant layer are provided to make the flame retardant and heat resistant ability of the cable core better, and the second reinforcement layer can further improve the heat resistance and tensile strength of the first flame retardant layer and the second flame retardant layer, and the first reinforcement layer can further improve the heat resistance and flame retardant ability between the inner sheath and the outer sheath;

[0019] 2. When the present invention is used in the process of using the ship cable, by setting a plurality of buffer strips, most of the external impact forces can be mitigated and absorbed, thereby improving the anti-bumping ability of the cable core, and the buffer strip with a hollow structure not only does not increase the dead weight of the cable, but also has a good buffering effect. By setting the second lining layer and the first lining layer, the cable core has better resistance to pulling, and the first shielding layer and the second shielding layer also make the cable core have better anti-electromagnetic interference ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 It is a structural diagram of the first lining layer, the second shielding layer and the second lining layer in the utility model;

[0023] Figure 4 This is a structural diagram of the outer sheath, inner sheath, first flame retardant layer, second flame retardant layer, armor layer and buffer strip in the utility model;

[0024] Figure 5 for Figure 2 A is an enlarged view of the middle image.

[0025] In the figure: 1. outer sheath; 2. inner sheath; 3. first flame retardant layer; 4. second flame retardant layer; 5. armor layer; 6. buffer strip; 7. first lining layer; 8. second shielding layer; 9. second lining layer; 10. insulating filler; 11. heat resistant layer; 12. insulating layer; 13. cable core; 14. first shielding layer; 15. limiting groove; 16. second reinforcement layer; 17. first reinforcement layer. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 , the utility model provides a technical solution:

[0028] Embodiment 1:

[0029] A three-core cable for ships comprises an outer sheath 1, an armor layer 5, an insulating layer 12 and a cable core 13. The outer sheath 1 is provided with the cable core 13, and the cable core 13 is provided with three groups. The annular side of the cable core 13 is wrapped with the insulating layer 12, and the insulating layer 12 is made of EPDM rubber. The insulating layer 12 made of EPDM rubber has excellent aging resistance and insulation, and has a wide applicable temperature range, so as to insulate and protect the cable core 13. An armor layer 5 is provided between the insulating layer 12 and the outer sheath 1. The armor layer 5 is made of armor tape. The armor layer 5 made of armor tape is strong and durable, has strong corrosion resistance and high insulation, so as to strengthen the protection of the buffer strip 6. The annular side of the insulating layer 12 is wrapped with a first shielding layer 14, and the first shielding layer 14 is made of metal wire braiding. The first shielding layer 14 made of metal wire braiding has good conductivity and anti-electromagnetic interference performance, thereby improving the anti-interference ability of the cable core 13.

[0030] The annular side of the first shielding layer 14 is wrapped with a heat-resistant layer 11, and the heat-resistant layer 11 is made of butyl rubber. The heat-resistant layer 11 made of butyl rubber is resistant to aging, high and low temperature, and has good shock absorption and electrical insulation properties, so as to protect the first shielding layer 14. The outer sheath 1 is made of solution-polymerized styrene-butadiene rubber. The outer sheath 1 made of solution-polymerized styrene-butadiene rubber has good anti-slip and wear resistance, so as to protect the first reinforcement layer 17. A reinforcement component is arranged between the armor layer 5 and the outer sheath 1, and the reinforcement component is used to improve the flame retardant ability of the cable. A buffer component is arranged between the armor layer 5 and the insulating layer 12, and the buffer component is used to improve the anti-collision ability of the cable core 13.

[0031] The reinforcement component includes a first reinforcement layer 17 and a second reinforcement layer 16. The inner sheath 2 is wrapped inside the outer sheath 1. The inner sheath 2 is made of low-phenyl silicone rubber. The inner sheath 2 made of low-phenyl silicone rubber has excellent low-temperature resistance and still has flexible elasticity at -100°C, so that the annular side of the first flame retardant layer 3 has better low-temperature resistance. A first reinforcement layer 17 is wrapped between the inner sheath 2 and the outer sheath 1. The first reinforcement layer 17 is made of woven graphite fibers. The first reinforcement layer 17 made of woven graphite fibers has good heat shock resistance, a small thermal expansion coefficient, and a certain flame retardancy, thereby further improving the heat resistance and flame retardancy between the inner sheath 2 and the outer sheath 1.

[0032] A first flame retardant layer 3 is arranged inside the inner sheath 2. The material of the first flame retardant layer 3 is halogen-free flame retardant silicone rubber. The first flame retardant layer 3 made of halogen-free flame retardant silicone rubber has good electrical insulation, high temperature resistance and flame retardancy, thereby improving the flame retardant ability of the cable. A second flame retardant layer 4 is arranged on the inside of the first flame retardant layer 3. The material of the second flame retardant layer 4 is halogen-free flame retardant silicone rubber. The second flame retardant layer 4 made of halogen-free flame retardant silicone rubber can further improve the flame retardant ability of the cable. A second reinforcement layer 16 is wrapped between the first flame retardant layer 3 and the second flame retardant layer 4. The second reinforcement layer 16 is woven from glass fiber high-temperature wire. The second reinforcement layer 16 woven from glass fiber high-temperature wire has good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, thereby improving the heat resistance and tensile strength of the first flame retardant layer 3 and the second flame retardant layer 4.

[0033] Embodiment 2:

[0034] On the basis of the first embodiment, in this embodiment, by providing a plurality of buffer strips 6, most of the external impact forces can be mitigated and absorbed, thereby improving the anti-collision ability of the cable core 13. By providing a second inner lining layer 9 and a first inner lining layer 7, the cable core 13 has better anti-pulling ability, and the first shielding layer 14 and the second shielding layer 8 also make the cable core 13 better in anti-electromagnetic interference ability.

[0035] The buffer component includes a buffer strip 6 and a first lining layer 7. A plurality of buffer strips 6 are arranged on the inner side of the armor layer 5, and the plurality of buffer strips 6 have the same specifications. The buffer strip 6 is a hollow structure, and the buffer strip 6 is made of EVA foam. The plurality of buffer strips 6 with a hollow structure and made of EVA foam have certain flexibility and buffering properties, and good insulation properties, so as to mitigate and absorb most external impact forces. A first lining layer 7 is arranged on the inner side of the buffer strip 6.

[0036] The first inner lining layer 7 is made of high-tear-resistant silicone rubber. The first inner lining layer 7 made of high-tear-resistant silicone rubber has excellent high and low temperature resistance, aging resistance and tear resistance, thereby improving the anti-pulling ability of the cable. A second inner lining layer 9 is arranged on the inner side of the first inner lining layer 7. The second inner lining layer 9 is made of high-tear-resistant silicone rubber. The material of high-tear-resistant silicone rubber can further improve the anti-pulling ability of the cable. A second shielding layer 8 is wrapped between the first inner lining layer 7 and the second inner lining layer 9. The second shielding layer 8 is made of metal foil. The second shielding layer 8 is made of metal foil. Layer 8 has anti-electromagnetic interference capability, thereby improving the electromagnetic shielding capability of the first lining layer 7 and the second lining layer 9. A limiting groove 15 is provided on the annular side of the first lining layer 7, and the limiting groove 15 matches the buffer strip 6. The limiting groove 15 will limit the buffer strip 6 to prevent the buffer strip 6 from being misplaced during use. The second lining layer 9 is filled with an insulating filler 10, and the insulating filler 10 is made of talcum powder. The insulating filler 10 made of talcum powder has good fire resistance and insulation, thereby improving the fire resistance and insulation capability of the second lining layer 9.

[0037] Working principle: By wrapping the insulating layer 12, the cable core 13 is insulated and protected, and the temperature-resistant layer 11 also improves the high and low temperature resistance of the cable core 13. At the same time, the first shielding layer 14 can make the cable core 13 have anti-electromagnetic interference ability. By filling the insulating filler 10, the fire resistance and insulation ability inside the second lining layer 9 are better, and the second lining layer 9 and the first lining layer 7 make the cable core 13 more resistant to pulling, and the second shielding layer 8 further improves the anti-electromagnetic interference ability of the cable core 13, so as to prevent the cable core 13 from being easily disturbed by electromagnetic interference during use on ships. By setting a plurality of buffer strips 6, most of the external impact forces can be The cable core 13 is subjected to moderate adsorption so that it can better resist knocks and collisions during use on ships, and the armor layer 5 can strengthen the protection of the buffer strip 6. By setting the first flame retardant layer 3 and the second flame retardant layer 4, the cable core 13 can have better flame retardancy and heat resistance. At the same time, the second reinforcement layer 16 can further improve the heat resistance and tensile strength of the first flame retardant layer 3 and the second flame retardant layer 4. By setting the inner sheath 2, the first flame retardant layer 3 can better resist low temperatures, and the outer sheath 1 has good anti-slip and wear resistance, thereby improving the service life of the cable core 13 on ships. At the same time, the first reinforcement layer 17 can further improve the heat resistance and flame retardancy between the inner sheath 2 and the outer sheath 1.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-core cable for ships, comprising an outer sheath (1), an armor layer (5), an insulating layer (12) and a cable core (13), characterized in that: A cable core (13) is arranged inside the outer sheath (1); the annular side surface of the cable core (13) is wrapped with an insulating layer (12); an armor layer (5) is arranged between the insulating layer (12) and the outer sheath (1); a reinforcement component is arranged between the armor layer (5) and the outer sheath (1), and the reinforcement component is used to improve the flame retardancy of the cable; a buffer component is arranged between the armor layer (5) and the insulating layer (12), and the buffer component is used to improve the anti-collision ability of the cable core (13).

2. A three-core cable for ships according to claim 1, characterized in that: The reinforcement component comprises a first reinforcement layer (17) and a second reinforcement layer (16); the inner sheath (2) is wrapped inside the outer sheath (1); and the first reinforcement layer (17) is wound between the inner sheath (2) and the outer sheath (1).

3. A three-core cable for ships according to claim 2, characterized in that: A first flame retardant layer (3) is arranged inside the inner sheath (2), a second flame retardant layer (4) is arranged inside the first flame retardant layer (3), and a second reinforcing layer (16) is wrapped between the first flame retardant layer (3) and the second flame retardant layer (4).

4. A three-core cable for ships according to claim 3, characterized in that: The first reinforcement layer (17) is made of braided graphite fibers, the second reinforcement layer (16) is made of braided glass fiber high-temperature wires, the inner sheath (2) is made of low-phenyl silicone rubber, and the first flame retardant layer (3) and the second flame retardant layer (4) are both made of halogen-free flame retardant silicone rubber.

5. The three-core cable for ships according to claim 1, characterized in that: The buffer component comprises a buffer strip (6) and a first inner lining layer (7); a plurality of buffer strips (6) are arranged on the inner side of the armor layer (5); the plurality of buffer strips (6) have the same specifications; and a first inner lining layer (7) is arranged on the inner side of the buffer strip (6).

6. A three-core cable for ships according to claim 5, characterized in that: A second lining layer (9) is arranged on the inner side of the first lining layer (7); a second shielding layer (8) is wrapped between the first lining layer (7) and the second lining layer (9); a limiting groove (15) is provided on the annular side surface of the first lining layer (7), and the limiting groove (15) matches the buffer strip (6); and the second lining layer (9) is filled with an insulating filler (10).

7. A three-core cable for ships according to claim 6, characterized in that: The second shielding layer (8) is made of metal foil, the first inner lining layer (7) and the second inner lining layer (9) are both made of highly tear-resistant silicone rubber, the buffer strip (6) is a hollow structure, the buffer strip (6) is made of EVA foam, and the insulating filler (10) is made of talcum powder.

8. The three-core cable for ships according to claim 1, characterized in that: The annular side surface of the insulating layer (12) is wrapped with a first shielding layer (14), and the annular side surface of the first shielding layer (14) is wrapped with a temperature-resistant layer (11). The material of the outer sheath (1) is solution-polymerized styrene-butadiene rubber, and the material of the armor layer (5) is armor tape.

9. A three-core cable for ships according to claim 8, characterized in that: The first shielding layer (14) is made of braided metal wires, the insulating layer (12) is made of EPDM rubber, and the temperature-resistant layer (11) is made of butyl rubber.

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