CN215770603U

CN215770603U - Environment-friendly high-flame-retardant moisture-proof mining power cable

Info

Publication number: CN215770603U
Application number: CN202121765313.8U
Authority: CN
Inventors: 孙振; 张成和; 张成兵; 曾玉松; 曾玉山
Original assignee: YANGZHOU ZHONGNENG CABLE CO Ltd
Current assignee: YANGZHOU ZHONGNENG CABLE CO Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-02-08
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses an environment-friendly high flame-retardant moistureproof mining power cable in the technical field of power cables, which comprises a cable, a water-blocking layer, a shielding layer, an insulating layer and a conductor, the water-resistant layer is sleeved on the surface of the shielding layer, the shielding layer is sleeved on the outer wall of the insulating layer, the insulating layer is wrapped on the outer wall of the conductor, the wrapping layer is sleeved on the outer walls of the three groups of cables, the armor layer is arranged on the outer wall of the three groups of cables, the armor layer is sleeved on the surface of the wrapping layer, the protective layer is sleeved on the surface of the armor layer, and the outer sheath is sleeved on the outer wall of the protective layer, and materials such as the outer sheath made of the halogen-free low-smoke flame-retardant irradiation cross-linked polyolefin material and the wrapping layer made of the high-temperature-resistant halogen-free low-smoke material are adopted in the device, so that the flame retardant property, the halogen-free low-smoke environment-friendly property, the fire resistance and the service life of the whole cable of the power cable are improved.

Description

Environment-friendly high-flame-retardant moisture-proof mining power cable

Technical Field

The utility model relates to the technical field of power cables, in particular to an environment-friendly high-flame-retardant moisture-proof mining power cable.

Background

In the process of mining or in-mine construction, a power cable needs to be laid in a mine, the using safety of the power cable influences the working progress in the mine, and the environment in the mine can influence the power cable, so that certain requirements are required on the using performance of the power cable, and therefore the environment-friendly high-flame-retardant moisture-proof mining power cable is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an environment-friendly high-flame-retardant moistureproof mining power cable to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: an environment-friendly high flame-retardant moistureproof mining power cable comprises,

the cable comprises a water-blocking layer, a shielding layer, an insulating layer and a conductor, wherein the water-blocking layer is sleeved on the surface of the shielding layer, the shielding layer is sleeved on the outer wall of the insulating layer, and the insulating layer is wrapped on the outer wall of the conductor;

the wrapping layer is sleeved on the outer walls of the three groups of cables;

the armor layer is sleeved on the surface of the wrapping layer;

the sheath is sleeved on the surface of the armor layer; and the number of the first and second groups,

the outer sheath is sleeved on the outer wall of the protective layer.

Preferably, the inner wall and the outer wall of the armor layer are both provided with interlayers, the inner side of the armor layer is sleeved on the outer wall of the wrapping layer, the outer wall of the outer side interlayer is connected with the inner wall of the armor layer, and the interlayer is an elastic interlayer.

Preferably, the protective layer comprises a high flame-retardant layer sleeved on the outer wall of the outer interlayer, and a moisture-proof layer is sleeved on the outer wall of the high flame-retardant layer.

Preferably, a filling layer is filled between the inner wall of the wrapping layer and the outer walls of the three groups of cables, and the filling layer is a flame-retardant filling layer.

Preferably, a reinforcing core is installed in the inner cavity of the filling layer, and the reinforcing core is a hollow reinforcing core.

Preferably, the outer wall of the outer sheath is coated with an anticorrosive layer, and the outer wall of the anticorrosive layer is coated with a wear-resistant layer.

Compared with the prior art, the utility model has the beneficial effects that: through the oversheath that adopts halogen-free low smoke flame retardant irradiation crosslinked polyolefin material and the material such as the winding covering of high temperature resistant halogen-free low smoke material in the device, promote power cable's flame retardant property, there is no halogen-free low smoke environmental protection performance, fire resistance and the holistic life of cable, and separate the armor by the interlayer, when making power cable receive external extruded, the sheath, can not reduce with armor direct contact around the covering, make the sheath and the probability that appears the indentation around the covering surface, reduce the sheath and receive the probability of destruction around the covering, improve power cable's life.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. a water resistant layer; 2. a shielding layer; 3. an insulating layer; 4. a conductor; 5. a reinforcing core; 6. a filling layer; 7. wrapping a covering; 8. an armor layer; 9. an interlayer; 10. a protective layer; 101. a moisture barrier; 102. a high flame retardant layer; 11. an outer sheath.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

the utility model provides a technical scheme that: referring to fig. 1, an environment-friendly, highly flame-retardant and moisture-proof power cable for mining use includes,

the cable comprises a water-blocking layer 1, a shielding layer 2, an insulating layer 3 and a conductor 4, wherein the water-blocking layer 1 is sleeved on the surface of the shielding layer 2, the water-blocking layer 1 adopts a double-sided insulating water-blocking tape and is tightly tied on the shielding layer 2 in a two-layer overlapping wrapping mode, the shielding layer 2 is wrapped by a copper strip, the shielding layer 2 is sleeved on the outer wall of the insulating layer 3, the insulating layer 3 adopts a high-cleanness crosslinked polyethylene insulating material, and the insulating layer 3 is wrapped on the outer wall of the conductor 4;

the wrapping layer 7 is sleeved on the outer walls of the three groups of cables, the wrapping layer 7 is a flame-retardant tape wrapping layer, and the flame-retardant tape wrapping layer is made of a high-temperature-resistant halogen-free low-smoke material, so that the flame retardant property and the annular property of the power cable are improved;

the armor layer 8, the armor layer 8 is set up in the surface around the covering 7, the armor layer 8 is woven by the steel wire;

the sheath 10 is sleeved on the surface of the armor layer 8; and the number of the first and second groups,

the outer sheath 11 is sleeved on the outer wall of the protective layer 10, the outer sheath 11 is made of a halogen-free low-smoke flame-retardant irradiation cross-linked polyolefin material, so that the flame retardant property, the halogen-free low-smoke environment-friendly property and the fire resistance of the power cable and the service life of the whole cable are improved, an anticorrosive layer is coated on the outer wall of the outer sheath 11, and a wear-resistant layer is coated on the outer wall of the anticorrosive layer;

referring to fig. 1, the protective layer 10 includes a high flame retardant layer 102 sleeved on the outer wall of the outer spacer 9, the high flame retardant layer 102 is a halogen-free high flame retardant tape, four layers are sequentially overlapped and wrapped around the periphery of the outer spacer 9 and are fastened, a moisture-proof layer 101 is sleeved on the outer wall of the high flame retardant layer 102, and the moisture-proof layer 101 is made of high density polyethylene material;

referring to fig. 1, a filling layer 6 is filled between the inner wall of the wrapping layer 7 and the outer walls of the three groups of cables, the filling layer 6 is a flame-retardant filling layer, the flame-retardant filling layer is a filling rope, the filling rope is made of a high-temperature-resistant halogen-free low-smoke flame-retardant environment-friendly material, a reinforcing core 5 is installed in the inner cavity of the filling layer 6, the reinforcing core 5 is a hollow reinforcing core, and the overall strength and the bending resistance of the power cable are improved.

Example 2:

referring to fig. 1, on the basis of embodiment 1, the inner wall and the outer wall of the armor layer 8 are both provided with the interlayer 9, the inner interlayer 9 is sleeved on the outer wall of the wrapping layer 7, the outer wall of the outer interlayer 9 is connected with the inner wall of the sheath layer 10, the interlayer 9 is an elastic interlayer, and the elastic interlayer is made of rubber, so that a buffer protection effect is achieved, when the power cable is extruded from the outside, the sheath layer 10 and the wrapping layer 7 cannot be in direct contact with the armor layer 8, the probability of indentation on the surfaces of the sheath layer 10 and the wrapping layer 7 is reduced, and the probability of damage on the sheath layer 10 and the wrapping layer 7 is reduced;

increased interlayer 9 for embodiment 1, separated armor 8, when making power cable receive external extrusion, sheath 10, can not with armor 8 direct contact around covering 7, make sheath 10 and the probability reduction that the indentation appears on covering 7 surface, reduce sheath 10 and receive the probability of destruction around covering 7.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. High fire-retardant dampproofing mining power cable of environment-friendly, its characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the cable comprises a water-blocking layer (1), a shielding layer (2), an insulating layer (3) and a conductor (4), wherein the water-blocking layer (1) is sleeved on the surface of the shielding layer (2), the shielding layer (2) is sleeved on the outer wall of the insulating layer (3), and the insulating layer (3) is wrapped on the outer wall of the conductor (4);

the wrapping layer (7) is sleeved on the outer walls of the three groups of cables;

the armor layer (8), the armor layer (8) is sleeved on the surface of the wrapping layer (7);

the sheath (10), the sheath (10) is sleeved on the surface of the armor layer (8); and the number of the first and second groups,

the outer sheath (11), the outer wall of sheath (10) is established to oversheath (11) cover.

2. The environment-friendly high-flame-retardant moisture-proof mining power cable according to claim 1, characterized in that: interlayer (9) are all installed to armor (8) inside and outside wall, and are inboard interlayer (9) cover is established on the outer wall around covering (7), and outside interlayer (9) outer wall and sheath (10) inner wall connection, and interlayer (9) are the elasticity interlayer.

3. The environment-friendly high-flame-retardant moisture-proof mining power cable according to claim 2, characterized in that: the protective layer (10) comprises a high flame-retardant layer (102) sleeved on the outer wall of the outer side interlayer (9), and a moisture-proof layer (101) is sleeved on the outer wall of the high flame-retardant layer (102).

4. The environment-friendly high-flame-retardant moisture-proof mining power cable according to claim 1, characterized in that: fill filling layer (6) around packing between covering (7) inner wall and the three cable outer walls of group, filling layer (6) are fire-retardant filling layer.

5. The environment-friendly high-flame-retardant moisture-proof mining power cable according to claim 4, characterized in that: the inner cavity of the filling layer (6) is provided with a reinforcing core (5), and the reinforcing core (5) is a hollow reinforcing core.

6. The environment-friendly high-flame-retardant moisture-proof mining power cable according to claim 1, characterized in that: the outer wall of the outer sheath (11) is coated with an anticorrosive layer, and the outer wall of the anticorrosive layer is coated with a wear-resistant layer.