A low temperature resistant longitudinal water-blocking conductor cable

Abstract

The utility model relates to the technical field of cables, and discloses a low-temperature resistant longitudinal water-blocking conductor cable, including an inner protective layer, characterized in that: a plurality of metal conductors are arranged inside the inner protective layer, the outer parts of the metal conductors are fixedly connected with an inner insulating layer, the outer parts of the inner insulating layer are fixedly connected with an inner shielding layer, the outer parts of the inner shielding layer are fixedly connected with an anti-corrosion layer, the outer parts of the anti-corrosion layer are commonly fixedly connected with a plurality of partitions, and the partitions are commonly penetrated with a plurality of tensile ribs. In the utility model, the partitions arranged cooperate with the inner protective layer to isolate the internal gap of the cable into a plurality of independent spaces. When the cable leaks sideways, the independent spaces formed by the partitions arranged are blocked from water intrusion, and at the same time, the water-blocking material in the space contacts with water and reacts, thereby expanding and blocking the water inlet, thereby further blocking the water intrusion, thereby improving the waterproofness of the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a low-temperature resistant longitudinal water-blocking conductor cable. Background Art

[0002] A cable is made of one or more mutually insulated conductors and an outer insulating protective layer. It is a wire that transmits electricity or information from one place to another. Power cables are commonly used in urban underground power grids, power station lead-out lines, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing.

[0003] In the prior art, power cables have poor waterproof performance and cannot solve the long-term water ingress problem caused by aging and damage. In addition, the water resistance of the conductor cannot be solved, which will affect the service life of the power cable and is not suitable for promotion and use. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and proposes a low-temperature resistant longitudinal water-blocking conductor cable, which can effectively prevent water from infiltrating and quickly block the diffusion of water after accidental infiltration and perform remediation.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A low-temperature resistant longitudinal water-blocking conductor cable comprises an inner protective layer, characterized in that: a plurality of metal conductors are arranged inside the inner protective layer, the outer parts of the metal conductors are fixedly connected with an inner insulating layer, the outer parts of the inner insulating layer are fixedly connected with an inner shielding layer, the outer parts of the inner shielding layer are fixedly connected with an anti-corrosion layer, the outer parts of the anti-corrosion layer are fixedly connected with a plurality of partitions, the inner parts are provided with a plurality of tensile ribs, and a metal mesh is arranged inside the inner protective layer.

[0007] Furthermore, the outside of the inner protective layer is fixedly connected to an outer insulating layer, and the outside of the outer insulating layer is fixedly connected to an outer shielding layer.

[0008] Furthermore, a thermal insulation layer is fixedly connected to the outside of the outer shielding layer.

[0009] Furthermore, a waterproof layer is fixedly connected to the outside of the thermal insulation layer.

[0010] Furthermore, an outer protective layer is fixedly connected to the outside of the waterproof layer.

[0011] Furthermore, a plurality of wear-resistant blocks are fixedly connected to the outside of the outer protective layer.

[0012] Furthermore, metal wires are arranged inside the wear-resistant blocks.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the internal gap of the cable can be isolated into multiple independent spaces by cooperating with the inner protective layer through the partitions provided, and the spaces are filled with water-blocking materials. When the cable leaks sideways, the independent spaces formed by the partitions provided block the entry of water. At the same time, the water-blocking materials provided come into contact with water and react, thereby expanding and blocking the water inlet, thereby further blocking the entry of water and improving the waterproofness of the cable.

[0015] 2. In the utility model, the anti-tensile ribs provided can increase the main pulling force during the cable pulling process, thereby reducing the pulling force acting on the cable conductor and protective layer, reducing the risk of cable damage; the thermal insulation layer provided can protect the cable to avoid accelerated aging of the cable internally due to low temperature, thereby increasing the practical life of the cable; the wear-resistant blocks and metal wires provided can reduce the possibility of damage to the outer protective layer, thereby improving the cable's anti-corrosion ability, thereby further improving the cable's water-blocking performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall schematic diagram of a low-temperature resistant longitudinal water-blocking conductor cable proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of a metal mesh of a low-temperature resistant longitudinal water-blocking conductor cable proposed by the utility model;

[0018] Figure 3 The utility model provides a schematic diagram of the metal wire of a low-temperature resistant longitudinal water-blocking conductor cable.

[0019] Legend:

[0020] 1. Inner protective layer; 2. Metal conductor; 3. Inner insulating layer; 4. Inner shielding layer; 5. Anti-corrosion layer; 6. Partition; 7. Tensile ribs; 8. Metal mesh; 9. Outer insulating layer; 10. Outer shielding layer; 11. Insulation layer; 12. Waterproof layer; 13. Outer protective layer; 14. Wear-resistant blocks; 15. Metal wire. DETAILED DESCRIPTION

[0021] 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.

[0022] Reference Figure 1-3The utility model provides an embodiment: a low-temperature resistant longitudinal water-blocking conductor cable, comprising an inner protective layer 1, a plurality of metal conductors 2 are arranged inside the inner protective layer 1, the outer parts of the metal conductors 2 are fixedly connected with inner insulating layers 3, the outer parts of the inner insulating layers 3 are fixedly connected with inner shielding layers 4, the outer parts of the inner shielding layers 4 are fixedly connected with anti-corrosion layers 5, the outer parts of the anti-corrosion layers 5 are fixedly connected with a plurality of partitions 6, the inner parts of the partitions 6 are commonly penetrated with a plurality of tensile ribs 7, and the inner part of the inner protective layer 1 is provided with a metal mesh 8; the plurality of metal conductors 2 are fixed by the partitions 6, and cooperate with the inner protective layer 1, The gaps between the multiple metal conductors 2 are isolated into multiple independent spaces, and water-blocking materials are filled inside the spaces. When the cable leaks sideways, the isolated independent spaces can reduce the infiltration of water as much as possible. When the infiltrated water contacts the water-blocking material in the space, the water-blocking material expands, thereby sealing the cracks of the side leakage and blocking the infiltration of water. The anti-corrosion layer 5 is set to prevent the water-blocking material from corroding the internal metal conductor 2, the inner insulating layer 3, and the inner shielding layer 4. The metal mesh 8 inside the anti-corrosion layer 5 can increase the strength of the anti-corrosion layer 5, thereby better protecting and fixing the internal structure.

[0023] The outer part of the inner protective layer 1 is fixedly connected to the outer insulating layer 9, the outer part of the outer insulating layer 9 is fixedly connected to the outer shielding layer 10, the outer part of the outer shielding layer 10 is fixedly connected to the thermal insulation layer 11, the thermal insulation layer 11 can protect the temperature of the internal structure in a low temperature environment, thereby preventing the internal structure from aging too quickly due to low temperature, which affects the service life of the cable; the outer part of the thermal insulation layer 11 is fixedly connected to the waterproof layer 12, the waterproof layer 12 can prevent rainwater from penetrating into the cable from the outside during use, thereby affecting the normal use of the cable; the outer part of the waterproof layer 12 is fixedly connected to the outer protective layer 13, the outer part of the outer protective layer 13 is fixedly connected to a plurality of wear-resistant blocks 14, and the inside of the wear-resistant blocks 14 is provided with metal wires 15; the wear-resistant blocks 14 cooperate with the metal wires 15 to prevent the outer protective layer 13 from being worn during the installation of the cable, thereby preventing the protective performance of the cable from being reduced, thereby shortening the service life of the cable.

[0024] Working principle: multiple metal conductors 2 are fixed by the partition 6, and cooperate with the inner protective layer 1 to isolate the gaps between the multiple metal conductors 2 into multiple independent spaces, and fill the space with water-blocking material. When the cable leaks sideways, the isolated independent space can reduce the infiltration of water as much as possible. When the infiltrated water contacts the water-blocking material in the space, the water-blocking material expands, thereby sealing the cracks of the side leakage and blocking the infiltration of water. The multiple tensile ribs 7 passed through the partition 6 can increase the tensile strength of the cable. The wear-resistant blocks 14 cooperate with the metal wires 15 to prevent the outer protective layer 13 from being worn during the installation process. The thermal insulation layer 11 can protect the internal structure of the cable in a low-temperature environment to prevent the internal structure of the cable from aging too quickly due to low temperature.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low temperature resistant longitudinal water blocking conductor cable, comprising an inner protective layer (1), characterized in that: A plurality of metal conductors (2) are arranged inside the inner protective layer (1); the outer parts of the metal conductors (2) are fixedly connected to the inner insulating layer (3); the outer parts of the inner insulating layer (3) are fixedly connected to the inner shielding layer (4); the outer parts of the inner shielding layer (4) are fixedly connected to the anti-corrosion layer (5); the outer parts of the anti-corrosion layer (5) are fixedly connected to a plurality of partitions (6); the partitions (6) are provided with a plurality of tensile ribs (7); and a metal mesh (8) is arranged inside the inner protective layer (1).

2. A low temperature resistant longitudinal water blocking conductor cable according to claim 1, characterized in that: The outside of the inner protective layer (1) is fixedly connected to an outer insulating layer (9), and the outside of the outer insulating layer (9) is fixedly connected to an outer shielding layer (10).

3. A low temperature resistant longitudinal water blocking conductor cable according to claim 2, characterized in that: The exterior of the outer shielding layer (10) is fixedly connected with a thermal insulation layer (11).

4. A low temperature resistant longitudinal water blocking conductor cable according to claim 3, characterized in that: The exterior of the thermal insulation layer (11) is fixedly connected with a waterproof layer (12).

5. A low temperature resistant longitudinal water blocking conductor cable according to claim 4, characterized in that: An outer protective layer (13) is fixedly connected to the outside of the waterproof layer (12).

6. A low temperature resistant longitudinal water blocking conductor cable according to claim 5, characterized in that: A plurality of wear-resistant blocks (14) are fixedly connected to the outside of the outer protective layer (13).

7. A low temperature resistant longitudinal water blocking conductor cable according to claim 6, characterized in that: Metal wires (15) are arranged inside the wear-resistant blocks (14).

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