High-toughness and cold-resistant submarine cable

Abstract

The invention relates to the technical field of submarine cables, in particular to a high-toughness and cold-resistant submarine cable, which comprises a core wire, an insulating layer sleeved outside the core wire, a water-blocking tape sleeved outside the insulating layer, a metal shielding layer arranged outside the water-blocking tape, and a PE sheath sleeved outside the metal shielding layer. According to the high-toughness and cold-resistant submarine cable, the rubber layer is extruded behind the outer sheath, so that the outer sheath can be protected, submarine cable breakdown caused by damage of the outer sheath is prevented, and meanwhile, a heat preservation effect on the submarine cable can be achieved; a rubber layer is extruded on each steel wire, so that the tensile strength of the armor layer can be improved; and the rubber layer can fill gaps among the steel wires in the steel wire armoring, so that a certain water blocking effect is achieved, heat preservation is further performed on the submarine cable, and the service life of the submarine cable is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of submarine cables, in particular to a high-toughness and cold-resistant submarine cable. Background Art

[0002] Submarine cables may be affected by tension during the laying process, may be hit by marine animals and collided with fishing boats under the sea, and the low temperature of the seabed may shorten the life of the submarine cable during use, thus causing cable damage. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the current submarine cables may be damaged due to collisions with marine animals and fishing boats during the laying process, and have poor low temperature resistance.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a high-toughness, cold-resistant submarine cable, including a core wire, an insulating layer is sheathed on the outside of the core wire, a water-blocking tape is sheathed on the outside of the insulating layer, a metal shielding layer is arranged on the outer layer of the water-blocking tape, a PE sheath is sheathed on the outside of the metal shielding layer, a steel wire armor is arranged on the outer layer of the PE sheath, a rubber sheath is extruded on each steel wire of the steel wire armor, an inner lining layer is sheathed on the outer side of the rubber sheath, an asphalt layer is coated on the outer side of the inner lining layer, and an outer coating layer is sheathed on the outer side of the asphalt layer.

[0005] The insulating layer is composed of a conductor shield, an insulating layer and an insulating shield in sequence from the inside to the outside.

[0006] An arc-shaped external assembly frame is fixedly mounted on the outer side surface of the outer coating layer through a tight hoop, and an angle-adjustable control impeller assembly is movably mounted inside the arc-shaped external assembly frame.

[0007] The two sides of the tight hoop are located on the outer layer assembly surface and have arc-shaped support covers extending outwards.

[0008] A pressure monitoring unit is fixedly mounted on the assembly surface of the arc-shaped support cover and the outer layer.

[0009] The outer side surface of the arc-shaped support cover is movably equipped with a lateral electric control support rod for controlling the flipping of the arc-shaped external assembly frame.

[0010] The outer walls on both sides of the arc-shaped support cover are fixedly equipped with an electrically controlled worm gear adjustment component for controlling an angle-adjustable control impeller component.

[0011] An embedded level controller is fixedly mounted on the assembly surface of the arc-shaped support cover and the outer layer.

[0012] The angle-adjustable controlled impeller assembly includes an external adjustment frame that is inserted into the interior of the electric-controlled worm gear adjustment assembly through assembly shafts on both sides and movably assembled with both sides of the arc-shaped support cover, an internal mounting bracket fixedly mounted on the inner wall of the external adjustment frame, and an electric-driven impeller assembled on the internal mounting bracket.

[0013] The electrically controlled worm gear adjustment assembly comprises an integrated mounting cover shell fixedly mounted on the outer walls of both sides of the arc-shaped support cover, an electrically controlled worm and an electrically controlled worm wheel.

[0014] The beneficial effects of the present invention are: (1) The high-toughness, cold-resistant submarine cable of the present invention can protect the outer sheath by extruding a rubber layer behind the outer sheath, thereby preventing the outer sheath from being damaged and causing the submarine cable to be punctured, and can also provide heat insulation for the submarine cable; (2) Squeezing a layer of rubber on each steel wire can increase the tensile strength of the armor layer; (3) The rubber layer can fill the gaps between the steel wires in the steel wire armor, play a certain role in water blocking, further insulate the submarine cable and extend the service life of the submarine cable; (4) An arc-shaped external assembly frame is fixedly assembled on the outer surface of the outer layer through a tight hoop, and an angle-adjustable control impeller assembly is movably assembled inside the arc-shaped external assembly frame, which can be quickly assembled and adjusted, and is convenient for reuse; (5) By adopting an active adjustment mechanism, the submarine cable can be locally adjusted during the laying process to avoid damage caused by head-on collision; (6) The angle-adjustable structural design can increase the adjustable range of the submarine cable; (7) By adopting real-time monitoring, the horizontal angle and pressure sensing of the assembly position can be measured, thereby improving the control accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a cross-sectional view of the submarine cable in the present invention.

[0018] Figure 3 It is a structural schematic diagram of the assembly end of the angle-adjustable control impeller assembly in the present invention. DETAILED DESCRIPTION

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Figure 1 , Figure 2 and Figure 3 A high-toughness, cold-resistant submarine cable is shown, comprising a core wire 1, an insulating layer 2 is sheathed on the outside of the core wire 1, a water-blocking tape 3 is sheathed on the outside of the insulating layer 2, a metal shielding layer 4 is arranged on the outer layer of the water-blocking tape 3, a PE sheath 5 is sheathed on the outside of the metal shielding layer 4, a steel wire armor 6 is arranged on the outer layer of the PE sheath 5, a rubber sheath 7 is extruded on each steel wire of the steel wire armor 6, an inner lining layer 8 is sheathed on the outer side of the rubber sheath 7, an asphalt layer 9 is coated on the outer side of the inner lining layer 8, and an outer sheath 10 is sheathed on the outer side of the asphalt layer 9.

[0022] The insulating layer 2 is composed of a conductor shield 21 , an insulating layer 22 and an insulating shield 23 in sequence from the inside to the outside.

[0023] In order to cooperate with external assembly and drive adjustment, an arc-shaped external assembly frame 12 is fixedly assembled on the outer side of the outer layer 10 through a tightening hoop 11, and an angle-adjustable control impeller assembly 13 is movably assembled inside the arc-shaped external assembly frame 12.

[0024] The tightening hoop 11 is directly sleeved on the outside of the outer layer 10 and can be changed into an electrically controlled tightening hoop 11 as needed, so as to facilitate fixing and separation.

[0025] The angle-adjustable control impeller assembly 13 drives the water flow by rotating, thereby adjusting the posture of the submarine cable during the falling process, thereby avoiding pulling damage after collision.

[0026] In order to cooperate with lateral support and assembly, arc-shaped support covers 14 extending outward are provided on both sides of the tight hoop 11 and located on the assembly surface of the outer layer 10.

[0027] In order to accurately monitor the collision point, a pressure monitoring unit 15 is fixedly installed on the assembly surface of the arc-shaped support cover 14 and the outer layer 10 .

[0028] Monitoring is done by collision at different ends.

[0029] In order to control the flipping adjustment, the outer side surface of the arc-shaped support cover 14 is movably equipped with a lateral electric control support rod 16 for controlling the flipping of the arc-shaped external assembly frame 12.

[0030] The lateral electric control support rod 16 controls the arc-shaped external assembly frame 12 to perform flipping adjustment by telescoping.

[0031] In order to cooperate with angle adjustment and position limiting, the outer walls on both sides of the arc-shaped support cover 14 are fixedly equipped with an electrically controlled worm gear adjustment component 17 for controlling the angle-adjustable control impeller component 13 .

[0032] The electrically controlled worm gear adjustment assembly 17 adjusts the angle of the angle-adjustable impeller assembly 13 from both sides.

[0033] In order to monitor the horizontal state of the submarine cable and adjust the posture of the angle-adjustable control impeller assembly 13 , an embedded level controller 18 is fixedly installed on the assembly surface of the arc-shaped support cover 14 and the outer layer 10 .

[0034] The embedded level controller 18 monitors the horizontal state of the submarine cable, and then automatically controls the electronically controlled worm gear adjustment assembly 17, thereby changing the angle of the adjustable angle control impeller assembly 13. In this way, the rotation direction of the adjustable impeller assembly 13 can be controlled to adjust the posture of the submarine cable during descending and laying, and rapid adjustments can be made in the event of a collision to avoid damage caused by squeezing.

[0035] In order to cooperate with lateral assembly and driving, the angle-adjustable controlled impeller assembly 13 includes an external adjustment frame 131 that is inserted into the interior of the electric-controlled worm gear adjustment assembly 17 through assembly shafts on both sides and movably assembled with both sides of the arc-shaped support cover 14, an internal mounting bracket 132 fixedly mounted on the inner wall of the external adjustment frame 131, and an electric-driven impeller 133 assembled on the internal mounting bracket 132.

[0036] The motor of the electric-driven impeller 133 is fixed on the side wall of the internal mounting bracket 132. The electric-driven impeller 133 can drive the submarine cable to perform translation adjustment and reduce the descent speed through rotation, thereby adjusting the posture of the submarine cable.

[0037] In order to cooperate with the electric control adjustment and limiting, the electric control worm gear adjustment assembly 17 includes an integrated mounting cover 171 fixedly mounted on the outer walls of both sides of the arc-shaped support cover 14, an electric control worm 172 and an electric control worm wheel 173.

[0038] The assembly shafts on both sides of the external adjustment frame 131 are axially fixed to the electric-controlled worm gear 173 , and the electric-controlled worm gear 173 and the external adjustment frame 131 are driven to rotate and adjust by the rotation of the electric-controlled worm 172 .

[0039] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A high-toughness, cold-resistant submarine cable, comprising a core wire (1), characterized in that: The core wire (1) is sheathed with an insulating layer (2) on the outside, the insulating layer (2) is sheathed with a water-blocking tape (3) on the outside, the water-blocking tape (3) is provided with a metal shielding layer (4) on the outside, the metal shielding layer (4) is sheathed with a PE sheath (5) on the outside, the PE sheath (5) is provided with a steel wire armor (6) on the outside, each steel wire of the steel wire armor (6) is extruded with a rubber sheath (7), the rubber sheath (7) is sheathed with an inner lining layer (8), the inner lining layer (8) is coated with an asphalt layer (9) on the outside, and the asphalt layer (9) is sheathed with an outer coating layer (10) on the outside.

2. A high-toughness, cold-resistant submarine cable according to claim 1, characterized in that: The insulating layer (2) is composed of a conductor shield (21), an insulating layer (22) and an insulating shield (23) in sequence from the inside to the outside.

3. The high-toughness, cold-resistant submarine cable according to claim 1 is characterized by: An arc-shaped external assembly frame (12) is fixedly mounted on the outer surface of the outer coating layer (10) via a tightening hoop (11), and an angle-adjustable control impeller assembly (13) is movably mounted inside the arc-shaped external assembly frame (12).

4. A high-toughness, cold-resistant submarine cable according to claim 3, characterized in that: Both sides of the tightening hoop (11) are located on the assembly surface of the outer layer (10) and have arc-shaped support covers (14) extending outwards.

5. A high-toughness, cold-resistant submarine cable according to claim 4, characterized in that: A pressure monitoring unit (15) is fixedly mounted on the assembly surface of the arc-shaped support cover (14) and the outer layer (10).

6. The high-toughness, cold-resistant submarine cable according to claim 4 is characterized by: The outer side surface of the arc-shaped support cover (14) is movably equipped with a lateral electric control support rod (16) for controlling the flipping of the arc-shaped external assembly frame (12).

7. The high-toughness, cold-resistant submarine cable according to claim 4 is characterized by: The outer walls on both sides of the arc-shaped support cover (14) are fixedly mounted with an electrically controlled worm gear adjustment assembly (17) for controlling the angle-adjustable control impeller assembly (13).

8. The high-toughness, cold-resistant submarine cable according to claim 4 is characterized by: An embedded level controller (18) is fixedly mounted on the assembly surface of the arc-shaped support cover (14) and the outer layer (10).

9. The high-toughness, cold-resistant submarine cable according to claim 7 is characterized by: The angle-adjustable controlled impeller assembly (13) comprises an external adjustment frame (131) which is inserted into the interior of an electrically controlled worm gear adjustment assembly (17) and movably assembled to the two sides of the arc-shaped support cover (14) via assembly shafts on both sides, an internal mounting bracket (132) fixedly mounted on the inner wall of the external adjustment frame (131), and an electrically driven impeller (133) assembled on the internal mounting bracket (132).

10. The high-toughness, cold-resistant submarine cable according to claim 7 is characterized by: The electrically controlled worm gear adjustment assembly (17) comprises an integrated mounting cover shell (171) fixedly mounted on the outer walls on both sides of the arc-shaped support cover (14), an electrically controlled worm (172), and an electrically controlled worm wheel (173).

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