Ethylene-propylene insulation high-strength degaussing control cable for ship

Abstract

The utility model discloses an ethylene-propylene insulated high-strength degaussing control cable for ships, which comprises a first cable core, a second cable core and a third cable core which are twisted into one strand by a plurality of copper wires; the first ethylene propylene rubber framework, the second ethylene propylene rubber framework and the second ethylene propylene rubber insulating layer are sleeved in sequence; wherein the first ethylene propylene rubber framework wraps the surface of the first cable core, and the second cable core and the third cable core are arranged on the inner side and the outer side of the second ethylene propylene rubber framework in a circumferential array mode respectively, so that the first cable core, the second cable core and the third cable core are arranged in a layered mode. According to the ethylene-propylene insulation high-strength degaussing control cable for the ship provided by the utility model, one thick cable core is changed into a plurality of thin cable cores, so that the plurality of cable cores are subjected to heat conduction at the same time, and the first cable core, the second cable core and the third cable core are arranged in a layered manner, so that uniform heat conduction is realized.

Description

Technical Field

[0001] The utility model relates to a cable, in particular to an EPDM insulated high-strength degaussing control cable for ships. Background Art

[0002] The degaussing control cable for ships is a cable that is installed on the surface of ships to generate magnetic force opposite to the magnetic force of the ships, thereby degaussing the ships.

[0003] Publication number CN207517385U, publication date 2018-06-19, discloses a thermally conductive degaussing cable for ships, including a centrally located copper conductor, the outer surface of which is covered with a thermally conductive EPDM rubber insulation layer, the outer surface of which is covered with a chlorosulfonated polyethylene rubber sheath layer, the outer surface of which has a plurality of first semicircular protrusions, which are embedded in the chlorosulfonated polyethylene rubber sheath layer.

[0004] In the prior art including the above-mentioned patent, multiple copper wires are twisted into one strand, and then an EPDM rubber insulation layer is coated on the surface for heat conduction. Since the single-strand cable core is relatively thick, the thermal conductivity of the copper wire at the cable axis is poor, while the thermal conductivity at the edge is good, resulting in uneven temperature of the cable core, which affects the normal operation of the cable. Utility Model Content

[0005] The utility model aims to provide an EPDM insulated high-strength degaussing control cable for ships, which is used to solve the technical problem of uneven heat conduction of the cable core in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an EPDM insulated high-strength degaussing control cable for ships, comprising:

[0007] The first cable core, the second cable core and the third cable core are each formed by twisting a plurality of copper wires into one strand;

[0008] The first EPDM rubber skeleton, the second EPDM rubber skeleton and the second EPDM rubber insulation layer are sequentially sleeved and arranged;

[0009] Among them, the first EPDM rubber skeleton is coated on the surface of the first cable core, and the second cable core and the third cable core are arranged in a circular array on the inner and outer sides of the second EPDM rubber skeleton, so that the first cable core, the second cable core and the third cable core are arranged in layers.

[0010] Preferably, it further comprises a first limiting groove and a second limiting groove which are respectively arranged in a circumferential array on the outer surface of the first EPDM rubber skeleton and the outer surface of the second EPDM rubber skeleton.

[0011] Preferably, it also includes flame retardant filling materials located inside and outside the second EPDM rubber skeleton respectively.

[0012] Preferably, it further includes protrusions arranged in a circumferential array on the outer surface of the second EPDM rubber insulation layer.

[0013] Preferably, the device further comprises a sealing layer wrapped around the outside of the second EPDM rubber insulating layer, and a groove corresponding to the protrusion is formed on the inner wall of the sealing layer.

[0014] Preferably, the invention further comprises an expansion rubber layer located between the sealing layer and the second EPDM rubber insulation layer.

[0015] Preferably, the invention further comprises a chlorosulfonated polyethylene rubber sheath coated on the outside of the sealing layer, and a water-blocking rubber layer is provided between the chlorosulfonated polyethylene rubber sheath and the sealing layer.

[0016] In the above technical solution, the EPDM insulated high-strength ship demagnetization control cable provided by the utility model has the following beneficial effects: since the first cable core, the second cable core and the third cable core are all twisted into a strand by multiple copper wires, and each cable core is coated with a first EPDM rubber insulation layer, a thick cable core is turned into multiple thin cable cores, thereby conducting heat to the multiple cable cores at the same time, effectively avoiding the inability to conduct heat to the copper wire of the thick cable core away from the insulation layer, resulting in high center temperature and low peripheral temperature. , which makes the temperature of the cable core uneven and affects the generation of current and magnetic field. By arranging the first cable core, the second cable core and the third cable core in layers and isolating each layer of cable cores with EPDM rubber, each layer of cable cores can achieve uniform heat conduction. The thermal conductivity is further improved by setting the first EPDM rubber skeleton, the second EPDM rubber skeleton and the second EPDM rubber insulation layer, which effectively avoids the cable core from melting due to high temperature caused by high-intensity operation during ship demagnetization, so that the cable can adapt to high-intensity demagnetization operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of a cable cross-section structure provided by an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the positions of the first EPDM rubber skeleton, the second EPDM rubber skeleton and the second EPDM rubber insulation layer provided in an embodiment of the present utility model.

[0020] Description of reference numerals:

[0021] 1. First cable core; 2. Second cable core; 3. Third cable core; 4. First EPDM rubber insulation layer; 5. First EPDM rubber skeleton; 51. First limiting groove; 6. Second EPDM rubber skeleton; 61. Second limiting groove; 7. Second EPDM rubber insulation layer; 71. Protrusion; 8. Sealing layer; 81. Groove; 9. Expansion rubber layer; 10. Water-blocking rubber layer; 11. Chlorosulfonated polyethylene rubber sheath; 12. Flame-retardant filling material. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-2 As shown, the EPDM insulated high-strength degaussing control cable for ships includes:

[0024] The first cable core 1, the second cable core 2 and the third cable core 3 are each formed by twisting a plurality of copper wires into one strand;

[0025] The first EPDM rubber skeleton 5, the second EPDM rubber skeleton 6 and the second EPDM rubber insulation layer 7 are sequentially sleeved and arranged;

[0026] Among them, the first EPDM rubber skeleton 5 is coated on the surface of the first cable core 1, and the second cable core 2 and the third cable core 3 are arranged in a circular array on the inner and outer sides of the second EPDM rubber skeleton 6, respectively, so that the first cable core 1, the second cable core 2 and the third cable core 3 are arranged in layers.

[0027] Specifically, since the first cable core 1, the second cable core 2 and the third cable core 3 are all formed by twisting a plurality of copper wires into a strand, and each cable core is coated with a first EPDM rubber insulation layer 4, a thick cable core is transformed into multiple thin cable cores, thereby simultaneously conducting heat to the multiple cable cores, effectively avoiding the inability to conduct heat to the copper wires of the thick cable core away from the insulation layer, resulting in high center temperature and low peripheral temperature, thereby making the cable core temperature uneven, affecting the generation of current and magnetic field.

[0028] The first cable core 1 is located at the center hole of the first EPDM rubber skeleton 5, the second cable core 2 is arranged in a circular array between the first EPDM rubber skeleton 5 and the second EPDM rubber skeleton 6, and the third cable core 3 is arranged in a circular array between the second EPDM rubber skeleton 6 and the second EPDM rubber insulation layer 7, so that the first cable core 1, the second cable core 2 and the third cable core 3 are arranged in layers, and EPDM rubber is provided between each layer of cable cores for isolation, so that uniform heat conduction can be achieved for each layer of cable core, and the heat conduction effect is further improved by setting the first EPDM rubber skeleton 5, the second EPDM rubber skeleton 6 and the second EPDM rubber insulation layer 7, effectively avoiding the high temperature of the cable core and the melting of the cable core due to high-intensity operation during the demagnetization of the ship.

[0029] In the above technology, since the first cable core 1, the second cable core 2 and the third cable core 3 are all twisted into a strand by multiple copper wires, and each cable core is coated with a first EPDM rubber insulation layer 4, a thick cable core is turned into multiple thin cable cores, so that the multiple cable cores are simultaneously heat-conducted, effectively avoiding the inability to conduct heat to the copper wires of the thick cable core away from the insulation layer, resulting in high center temperature and low peripheral temperature, thereby making the cable core temperature uneven, affecting the generation of current and magnetic field, by arranging the first cable core 1, the second cable core 2 and the third cable core 3 in layers, and EPDM rubber is provided between each layer of cable cores for isolation, so that uniform heat conduction can be achieved for each layer of cable core, and the thermal conductivity effect is further improved by setting the first EPDM rubber skeleton 5, the second EPDM rubber skeleton 6 and the second EPDM rubber insulation layer 7, effectively avoiding the high-intensity operation of the cable core during the ship demagnetization process, which causes the cable core temperature to be too high and melt, so that the cable can adapt to high-intensity demagnetization operations.

[0030] As a further embodiment of the present invention, the present invention further includes a first limiting groove 51 and a second limiting groove 61 respectively formed in a circumferential array on the outer surface of the first EPDM rubber skeleton 5 and the outer surface of the second EPDM rubber skeleton 6 .

[0031] Specifically, the second cable core 2 and the third cable core 3 are respectively located in the first limiting groove 51 and the second limiting groove 61, so that the second cable core 2 and the third cable core 3 are supported and fixed. At the same time, each cable core is individually arranged and isolated from each other, so as to avoid the melting of a single cable core and affect the cable cores around it, so that each cable core works together and is isolated from each other, thereby reducing the degree of damage to the cable under high-intensity operation.

[0032] As a further embodiment provided by the present invention, it further includes flame retardant filling materials 12 respectively located inside and outside the second EPDM rubber skeleton 6.

[0033] Specifically, by arranging flame retardant filling material 12 between adjacent second cable cores 2 and adjacent third cable cores 3, each second cable core 2 and third cable core 3 is further isolated, and at the same time, the phenomenon of cable bulging caused by smoke inside the cable due to excessive temperature is avoided.

[0034] As a further embodiment provided by the present invention, it further includes protrusions 71 arranged in a circumferential array on the outer surface of the second EPDM rubber insulation layer 7.

[0035] Specifically, the cable also includes a sealing layer 8 covering the exterior of the second EPDM rubber insulation layer 7, with a groove 81 formed on its inner wall corresponding to the protrusion 71. Also included is an expansion rubber layer 9 located between the sealing layer 8 and the second EPDM rubber insulation layer 7. The second EPDM rubber insulation layer 7 conducts heat, causing the expansion rubber layer 9 to expand upon heating, thereby filling the gap between the second EPDM rubber insulation layer 7 and the sealing layer 8. The groove 81 and protrusion 71 ensure a tight fit between the second EPDM rubber insulation layer 7 and the sealing layer 8, thereby preventing the air in the gap from expanding upon heating and causing bulging of the cable.

[0036] As a further embodiment provided by the present invention, the present invention further comprises a chlorosulfonated polyethylene rubber sheath 11 coated on the outside of the sealing layer 8 , and a water-blocking rubber layer 10 is provided between the chlorosulfonated polyethylene rubber sheath 11 and the sealing layer 8 .

[0037] Specifically, the chlorosulfonated polyethylene rubber sheath 11 is used to provide waterproof, moisture-proof and anti-oxidation protection to the entire interior of the cable, and the water-blocking adhesive layer 10 is used to further improve the waterproof performance of the cable.

[0038] Working principle: Since the first cable core 1, the second cable core 2 and the third cable core 3 are all made of multiple copper wires twisted into one strand, and each cable core is covered with a first EPDM rubber insulation layer 4, a thick cable core is turned into multiple thin cable cores, so that the multiple cable cores can be heat-conducted at the same time, effectively avoiding the inability to conduct heat to the copper wire of the thick cable core away from the insulation layer, resulting in high center temperature and low peripheral temperature, thereby making the cable core temperature uneven, affecting the generation of current and magnetic field, the first cable core 1 is located at the center hole of the first EPDM rubber skeleton 5, and the second cable core 2 is arranged in a circular array on the first EPDM rubber skeleton 5. Between the rubber skeleton 5 and the second EPDM rubber skeleton 6, the third cable core 3 is arranged in a circular array between the second EPDM rubber skeleton 6 and the second EPDM rubber insulation layer 7, so that the first cable core 1, the second cable core 2 and the third cable core 3 are arranged in layers, and EPDM rubber is provided between each layer of cable cores for isolation, so that each layer of cable core can achieve uniform heat conduction, and the first EPDM rubber skeleton 5, the second EPDM rubber skeleton 6 and the second EPDM rubber insulation layer 7 are provided to further improve the heat conduction effect, effectively avoiding the high temperature of the cable core caused by high-intensity operation of the cable core during the demagnetization of the ship. The second cable core 2 and the third cable core 3 are respectively located in the first limiting groove 51 and the second limiting groove 61, so as to support and fix the second cable core 2 and the third cable core 3. At the same time, each cable core is individually arranged to be isolated from each other, so as to avoid the melting of a single cable core affecting the cable cores around it, so that each cable core works together and is isolated from each other, thereby reducing the degree of damage to the cable under high-intensity operation. By arranging flame retardant filling material 12 between adjacent second cable cores 2 and between adjacent third cable cores 3, each second cable core 2 and the third cable core 3 are further isolated from each other. 3 is isolated and, at the same time, the phenomenon of cable bulging caused by smoke inside the cable due to excessive temperature is avoided. The second EPDM rubber insulation layer 7 conducts heat to cause the expansion rubber layer 9 to expand when heated to fill the gap between the second EPDM rubber insulation layer 7 and the sealing layer 8. The groove 81 and the protrusion 71 are set so that the second EPDM rubber insulation layer 7 and the sealing layer 8 are tightly fitted together, thereby preventing the air in the gap from expanding when heated and causing the cable bulging. The chlorosulfonated polyethylene rubber sheath 11 is used to provide waterproof, moisture-proof and anti-oxidation protection for the entire interior, and the water-blocking rubber layer 10 is used to further improve the waterproof performance of the cable.

[0039] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An EPDM insulated high-strength degaussing control cable for ships, characterized in that: include: The first cable core (1), the second cable core (2) and the third cable core (3) are each formed by twisting a plurality of copper wires into one strand; The first EPDM rubber skeleton (5), the second EPDM rubber skeleton (6) and the second EPDM rubber insulation layer (7) are sequentially sleeved; The first EPDM rubber skeleton (5) is coated on the surface of the first cable core (1), and the second cable core (2) and the third cable core (3) are arranged in a circular array on the inner side and the outer side of the second EPDM rubber skeleton (6), respectively, so that the first cable core (1), the second cable core (2) and the third cable core (3) are arranged in layers.

2. The EPDM insulated high-strength ship degaussing control cable according to claim 1, characterized in that: It also includes a first limiting groove (51) and a second limiting groove (61) respectively formed in a circumferential array on the outer surface of the first EPDM rubber skeleton (5) and the outer surface of the second EPDM rubber skeleton (6).

3. The EPDM insulated high-strength ship degaussing control cable according to claim 1, characterized in that: It also includes flame retardant filling materials (12) located inside and outside the second EPDM rubber skeleton (6).

4. The EPDM insulated high-strength ship degaussing control cable according to claim 1, characterized in that: It also includes protrusions (71) arranged in a circumferential array on the outer surface of the second ethylene propylene rubber insulation layer (7).

5. The EPDM insulated high-strength ship degaussing control cable according to claim 1, characterized in that: It also includes a sealing layer (8) coated on the outside of the second EPDM rubber insulation layer (7), and a groove (81) corresponding to the protrusion (71) is formed on the inner wall of the sealing layer.

6. The EPDM insulated high-strength ship degaussing control cable according to claim 5, characterized in that: It also includes an expansion rubber layer (9) located between the sealing layer (8) and the second EPDM rubber insulation layer (7).

7. The EPDM insulated high-strength ship degaussing control cable according to claim 6, characterized in that: It also includes a chlorosulfonated polyethylene rubber sheath (11) coated on the outside of the sealing layer (8), and a water-blocking rubber layer (10) is provided between the chlorosulfonated polyethylene rubber sheath (11) and the sealing layer (8).

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