CN212750446U

CN212750446U - Dampproofing and waterproof power cable

Info

Publication number: CN212750446U
Application number: CN202021361273.6U
Authority: CN
Inventors: 王祖岚; 王祖宏
Original assignee: Anhui Tianhong Cable Co ltd
Current assignee: Anhui Tianhong Cable Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-03-19
Anticipated expiration: 2030-07-10

Abstract

The utility model discloses a dampproofing and waterproofing power cable belongs to cable technical field. The utility model provides a dampproofing and waterproofing power cable, includes the oversheath, its characterized in that: the cable comprises an outer sheath, a metal soft mesh layer, a corrosion resistant layer, a water absorbing layer, an insulating layer, a waterproof layer and a cable core assembly, wherein a plurality of groups of inflatable strip-shaped bubbles are arranged on the outer wall of the outer sheath, the metal soft mesh layer is arranged inside the outer sheath, the corrosion resistant layer is arranged inside the metal soft mesh layer, the water absorbing layer is arranged inside the corrosion resistant layer, the insulating layer is arranged inside the water absorbing layer, the waterproof layer is arranged inside the insulating layer, the cable core assembly is arranged inside the waterproof layer, the cable core assembly comprises polyurethane foam filled inside; the utility model discloses effectively solved the problem that the cable can't use or life is short and the cable is difficult for retrieving under humid environment, avoided the cable core because of intaking and lead to the condition of unable use or electric leakage, be favorable to staff's later maintenance work, also reduced later maintenance's cost simultaneously.

Description

Dampproofing and waterproof power cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a dampproofing and waterproofing power cable.

Background

When the cable lay under water, often soak or moist place, then require the cable to have the function of preventing (nai) water, require the function that has full water-blocking promptly to prevent inside moisture soaks the cable, cause the harm to the cable, guarantee the long-term steady operation of cable under water, the difference of waterproof cable and ordinary cable just lies in, ordinary cable can't use in water, the waterproof cable that china used mainly has following three types: firstly, the oiled paper insulated cable is the most typical waterproof cable, secondly the ethylene propylene rubber insulated cable who extensively is used for well low voltage transmission line under water, thirdly crosslinked polyethylene (XLPE) insulated power cable, use the individual layer among the prior art to carry out water-proof effects and handle, the condition of ageing fracture appears after the live time overlength easily, and the cable in aqueous simultaneously need utilize the machine to draw from the bottom, easily leads to the fact the injury to the cable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the cable can not be used or the service life is short and the cable is difficult to be retrieved under the humid environment among the prior art, and the dampproofing and waterproofing power cable who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a dampproofing and waterproofing power cable, includes the oversheath, its characterized in that: the outer wall of the outer sheath is provided with a plurality of groups of inflatable strip-shaped bubbles, the inner portion of the outer sheath is provided with a metal soft net layer, the inner portion of the metal soft net layer is provided with an anti-corrosion layer, the inner portion of the anti-corrosion layer is provided with a water absorption layer, the inner portion of the water absorption layer is provided with an insulating layer, the inner portion of the insulating layer is provided with a waterproof layer, and the inner portion of the waterproof layer.

Preferably, the cable core assembly comprises polyurethane foam filled inside, a plurality of cable core protection layers are arranged inside the polyurethane foam, and a cable core is arranged inside the cable core protection layers.

Preferably, the outer sheath is made of a CPE material and natural rubber.

Preferably, the anti-corrosion layer is a composite layer formed by combining a glass fiber tape and a polyester tape.

Preferably, the water absorption layer is made of polyester fiber woven cloth and a high water absorption material in a composite mode.

Preferably, the insulating layer is made of polytetrafluoroethylene.

Preferably, the waterproof layer is made by mixing butyl rubber and carbon black.

Preferably, the cable core is formed by winding a plurality of strands of copper wires.

Compared with the prior art, the utility model provides a dampproofing and waterproofing power cable possesses following beneficial effect:

1. this dampproofing waterproof power cable through the oversheath of being made by CPE material and natural rubber complex, has effectively protected the inside can not damaged by external force of cable, plays certain water proof effect simultaneously.

2. This dampproofing waterproof power cable through the anticorrosion layer that forms by the combination of glass fiber tape and polyester area, has effectively avoided the harm that aquatic microorganism caused the cable, prolongs the life of cable.

3. This dampproofing waterproof power cable, through the waterproof layer of absorbing water layer and the waterproof layer of being made by butyl rubber and carbon black mixture of making that weaving cloth and high water-absorbing material are compound by polyester fibre, effectively prevent to get into moisture, prevent the harm that moisture caused the cable is inside under the humid environment.

4. This dampproofing and waterproofing power cable, a plurality of inflatable strip bubbles that are equipped with through the oversheath outer wall make the cable only need inflate the strip bubble when changing and can utilize buoyancy to come out the surface of water with the cable, improved maintenance personal's work efficiency.

5. This dampproofing and waterproofing power cable, the cable core of making through the winding of a plurality of strands of copper wires makes the harm dispersion that water pressure caused the cable core, reduces the pressure on the copper wire, prolongs the life of cable.

6. This dampproofing waterproof power cable, through the polyurethane foam that the cable core subassembly was filled, plays certain heat preservation effect to the cable inside, prevents to locate the temperature imbalance and the transmission that causes in the depth of water is abnormal.

7. This dampproofing and waterproofing power cable through the soft stratum reticulare of metal, has effectively improved the pliability of cable, makes it difficult fracture.

The part of the device which is not involved is the same as the prior art or can be realized by the prior art, the utility model effectively solves the problems that the cable can not be used in a humid environment or has short service life, avoids the condition that the cable core can not be used or has electric leakage due to water inflow, is beneficial to the later maintenance work of workers, meanwhile, the later maintenance cost is reduced, firstly, the outer sheath plays a certain role in protecting and waterproofing the outside of the cable, the inflatable strip-shaped bubbles can be inflated when the cable needs to be replaced, the cable is floated by buoyancy, and then change, the anti-corrosion coating protects moisture and microorganism under the humid environment, and the layer that absorbs water and waterproof layer absorb the moisture that gets into, and the metal soft mesh layer has improved the pliability of cable, makes it difficult fracture, and polyurethane foam plays the heat preservation effect to cable core inside simultaneously.

Drawings

Fig. 1 is a schematic structural view of a moisture-proof and waterproof power cable provided by the present invention;

FIG. 2 is a schematic structural view of a cable core assembly according to the present invention;

in the figure:

1. an outer sheath; 2. inflatable strip-shaped bubbles; 3. a metal soft mesh layer; 4. an anti-corrosion layer; 5. A water-absorbing layer; 6. an insulating layer; 7. a waterproof layer; 8. a cable core assembly; 81. a polyurethane foam; 82. A cable core protective layer; 83. and a cable core.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a moisture-proof and waterproof power cable comprises an outer sheath 1, wherein the outer sheath 1 is made of a CPE material and natural rubber in a compounding manner, the interior of the cable is effectively protected from being damaged by external force, and a certain water-proof effect is achieved, a plurality of groups of inflatable strip-shaped bubbles 2 are arranged on the outer wall of the outer sheath 1, so that the cable can float out of the water surface by buoyancy only by inflating the strip-shaped bubbles when being replaced, the working efficiency of maintenance personnel is improved, the metal soft net layer 3 is arranged inside the outer sheath 1, the flexibility of the cable is effectively improved, the cable is not easy to break, an anti-corrosion layer 4 is arranged inside the metal soft net layer 3, and the anti-corrosion layer 4 is a composite layer formed by combining a glass fiber tape and a polyester tape, the damage of microorganisms in water to the cable is effectively avoided, the service life of the cable is prolonged, the water absorbing layer 5 is arranged inside the anti-corrosion layer 4, the water absorbing layer 5 is made of polyester fiber woven fabric and high water absorbing material in a composite mode, the insulating layer 6 is arranged inside the water absorbing layer 5, the insulating layer 6 is made of polytetrafluoroethylene, the waterproof layer 7 is arranged inside the insulating layer 6, the waterproof layer 7 is made of butyl rubber and carbon black in a mixed mode, the water absorbing layer 5 made of polyester fiber woven fabric and high water absorbing material in a composite mode and the waterproof layer 7 made of butyl rubber and carbon black in a mixed mode effectively prevent water from entering, damage of water to the interior of the cable in a humid environment is prevented, the cable core assembly 8 is arranged inside the waterproof layer 7, the cable core assembly 8 comprises polyurethane foam 81 filled inside, a certain heat preservation effect is achieved on the interior of the cable, and transmission abnormality caused by temperature imbalance at the water, and polyurethane foam 81 is inside to be equipped with a plurality of cable core protective layers 82, and cable core 83 is inside to be equipped with cable core 83 in cable core protective layer 82, and cable core 83 has a plurality of strands of copper wire winding to make, makes the harm dispersion that water pressure caused the cable core, reduces the pressure on the copper wire, prolongs the life of cable.

The utility model discloses a theory of operation: at first oversheath 1 plays certain guard action and waterproof effect to the cable outside, inflatable strip bubble 2 can be when the cable needs to be changed, inflate wherein, utilizes buoyancy to float the cable, and then changes, and moisture and microorganism are protected under the humid environment to anti-corrosion coating 4, and layer 5 and waterproof layer 7 absorb the moisture that gets into, and metal soft net layer 3 has improved the pliability of cable, makes it difficult fracture, and polyurethane foam 81 plays the heat preservation effect to cable core inside simultaneously.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A moisture and water resistant power cable comprising an outer sheath (1), characterized in that: the outer wall of the outer sheath (1) is provided with a plurality of groups of inflatable strip-shaped bubbles (2), a metal soft net layer (3) is arranged inside the outer sheath (1), an anti-corrosion layer (4) is arranged inside the metal soft net layer (3), a water absorbing layer (5) is arranged inside the anti-corrosion layer (4), an insulating layer (6) is arranged inside the water absorbing layer (5), a waterproof layer (7) is arranged inside the insulating layer (6), and a cable core assembly (8) is arranged inside the waterproof layer (7).

2. A moisture and water resistant power cable as claimed in claim 1, characterized in that: the cable core subassembly (8) are equipped with a plurality of groups of cable core protective layer (82) including inside polyurethane foam (81) that are filled, and polyurethane foam (81) are inside, cable core protective layer (82) inside is equipped with cable core (83).

3. A moisture and water resistant power cable as claimed in claim 1, characterized in that: the anti-corrosion layer (4) is a composite layer formed by combining a glass fiber tape and a polyester tape.

4. A moisture and water resistant power cable as claimed in claim 1, characterized in that: the insulating layer (6) is made of polytetrafluoroethylene.

5. A moisture and water resistant power cable as claimed in claim 2, characterized in that: the cable core (83) is formed by winding a plurality of strands of copper wires.