CN218159764U

CN218159764U - Mining halogen-free low-smoke high-flame-retardant power cable

Info

Publication number: CN218159764U
Application number: CN202222583100.4U
Authority: CN
Inventors: 孙振; 张成和; 张成兵; 曾玉松
Original assignee: YANGZHOU ZHONGNENG CABLE CO Ltd
Current assignee: YANGZHOU ZHONGNENG CABLE CO Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2022-12-27
Anticipated expiration: 2032-09-28

Abstract

The application discloses mining no halogen low cigarette high fire-retardant power cable, including the wearing layer that sets gradually from outside to inside, low cigarette no halogen fire-retardant layer and a plurality of moulding covering, the upper and lower surface of wearing layer all has a plurality of protruding muscle of first, two sides of wearing layer all have a plurality of protruding muscle of second, the top of moulding covering has last steel band, the bottom of moulding covering has down the steel band, be provided with the fire-retardant unit of separating of I shape between two adjacent moulding covering, all be provided with the cable core in every moulding covering. The utility model provides a power cable, the cross-section is the platykurtic, and is more wear-resisting, resistant buckling, and has fine flame retardant efficiency and insulating effect, and the steel band provides better mechanical strength, and fire-retardant separation unit has increased fire-retardant separation effect, and under mining environment, the marginal wearing and tearing of cable are bigger, and consequently the radius of the protruding muscle of second is greater than the radius of first protruding muscle to make this application power cable's wear-resisting effect good.

Description

Mining halogen-free low-smoke high-flame-retardant power cable

Technical Field

The utility model relates to a cable field, more specifically relates to a mining no halogen low cigarette high flame retardant power cable.

Background

The power cable is a cable for transmitting and distributing electric energy, provides power for various devices, and is widely applied to power plants, transformer substations and industrial and mining enterprises.

An existing authorized publication number CN201859685U discloses an insulated power cable, which has good shielding property and voltage impact resistance, but the power cable is not suitable for industrial and mining enterprises, the power cable has poor wear resistance and flame retardant effect, coal mining or underground environment is complex, areas where gas and coal dust gather are more likely to cause fire, and in a mining environment, the power cable is easy to damage and affects normal operation of machinery and equipment, and cannot play a good flame retardant role.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art's defect, provide a mining no halogen low cigarette high flame retardant power cable.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a mining no halogen low smoke high flame retardant power cable, includes wearing layer, low smoke zero halogen flame retardant coating and a plurality of moulding covering that is a style of calligraphy range that set gradually from outer to interior, the upper surface and the lower surface of wearing layer all are provided with a plurality of first protruding muscle, two sides of wearing layer all are provided with the protruding muscle of a plurality of seconds, the radius of the protruding muscle of second is greater than the radius of first protruding muscle, moulding covering cross-section is for taking the square at fillet, the top of moulding covering is provided with the steel band, the bottom of moulding covering is provided with down the steel band, it all sets up with lower steel band to go up the steel band in the low smoke zero halogen flame retardant coating, adjacent two be provided with the fire-retardant unit of separating of I shape between the moulding covering, fire-retardant unit includes the upper horizontal band, lower horizontal band and connects the perpendicular median strip of upper and lower horizontal band, adjacent two have one between the upper horizontal band, adjacent two have one between the lower horizontal band, adjacent two have one between the moulding covering the perpendicular median all be provided with in the cable core, the fire-retardant cable core sets gradually including outer mineral insulation layer, the second cable core, the outer mineral insulation layer, the fire-retardant cable core has set gradually.

Preferably, the plurality of wire cores are distributed in an annular shape at equal intervals;

thereby the structure of messenger's cable core is more stable.

Preferably, the first rib and the second rib both extend along the length direction of the cable;

thereby the cable has good wear-resisting effect.

Preferably, the first convex rib and the second convex rib are integrally formed with the wear-resistant layer through extrusion molding;

thereby stabilizing the structure of the first and second ribs.

Preferably, the upper horizontal belt, the lower horizontal belt and the vertical separation belt are integrally formed by extrusion molding;

thereby stabilizing the structure of the fire-retardant partition unit.

Preferably, the shaping envelope is made of polyethylene;

thereby making the cable very flexible.

Preferably, at least two glass fiber tensile ropes are arranged in the flame-retardant separation unit;

thereby the cable has better tensile property.

Has the advantages that: the utility model provides a power cable, the cross-section is the platykurtic, and is more wear-resisting, resistant buckling, and has fine flame retardant efficiency and insulating effect, and the steel band provides better mechanical strength, and fire-retardant separation unit has increased fire-retardant separation effect, and under mining environment, the marginal wearing and tearing of cable are bigger, and consequently the radius of the protruding muscle of second is greater than the radius of first protruding muscle to make this application power cable's wear-resisting effect good.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is a sectional view of the present embodiment.

Description of the reference numerals: 1. a wear layer; 1.1, a first convex rib; 1.2, second convex ribs; 2. a low smoke halogen-free flame retardant layer; 3. shaping a cladding; 3.1, feeding a steel belt; 3.2, steel strips are arranged; 4. a cable core; 4.1, a protective layer; 4.2, an outer insulating layer; 4.3, a first flame-retardant layer; 4.4, a second flame-retardant layer; 4.5, a mineral flame-retardant layer; 4.6, a mineral insulating layer; 4.7, a conductor; 5. a flame retardant partition unit; 5.1, arranging a horizontal belt; 5.2, a lower horizontal belt; 5.3, erecting the division strip; 5.4, a glass fiber tensile rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The utility model provides a mining halogen-free low-smoke high-flame-retardant power cable as shown in figures 1-3, which comprises a wear-resistant layer 1, a low-smoke halogen-free flame-retardant layer 2 and a plurality of shaping cladding layers 3 arranged in a straight line shape, wherein the upper surface and the lower surface of the wear-resistant layer 1 are respectively provided with a plurality of first convex ribs 1.1, two side surfaces of the wear-resistant layer 1 are respectively provided with a plurality of second convex ribs 1.2, the radius of the second convex ribs 1.2 is larger than that of the first convex ribs 1.1, the section of the shaping cladding layer 3 is a square with round corners, the top of the shaping cladding layer 3 is provided with an upper steel belt 3.1, the bottom of the shaping cladding layer 3 is provided with a lower steel belt 3.2, the upper steel belt 3.1 and the lower steel belt 3.2 are both arranged in the low-smoke halogen-free flame-retardant layer 2, adjacent two be provided with the fire-retardant unit 5 of separating of I shape between the moulding covering 3, fire-retardant unit 5 of separating includes upper horizontal band 5.1, lower horizontal band 5.2 and connects the vertical separate zone 5.3 of upper and lower horizontal band, adjacent two have one between the upper steel band 3.1 upper horizontal band 5.1, adjacent two have one between lower steel band 3.2 lower horizontal band 5.2, adjacent two have one between the moulding covering 3 vertical separate zone 5.3, every all be provided with cable core 4 in the moulding covering 3, cable core 4 includes protective layer 4.1, outer insulating layer 4.2, first fire-retardant layer 4.3, the fire-retardant layer 4.4 of second and sinle silk that set gradually from outside to inside, the sinle silk has a plurality ofly, the sinle silk includes the fire-retardant layer 4.5 of mineral, the mineral insulating layer 4.6 and the conductor 4.7 that set gradually from outside to inside.

The plurality of wire cores are distributed in an annular shape at equal intervals; the first rib 1.1 and the second rib 1.2 both extend along the length direction of the cable; the first convex rib 1.1 and the second convex rib 1.2 are integrally formed with the wear-resistant layer 1 through extrusion molding; the upper horizontal belt 5.1, the lower horizontal belt 5.2 and the vertical separation belt 5.3 are integrally formed by extrusion molding; the shaping envelope 3 is made of polyethylene; at least two glass fiber tensile ropes 5.4 are arranged in the flame-retardant separation unit 5.

The working principle is as follows: the utility model provides a power cable, a plurality of cable cores are a style of calligraphy and arrange, thereby make the cable more resistant buckling, and multilayer flame retardant layer and insulating layer have, make the cable have fine fire-retardant and insulating effect, fire-retardant partition unit has between two adjacent moulding claddings, for the cable has increased fire-retardant partition effect, the top and the bottom of every moulding cladding all have the steel band, thereby for the cable provides better mechanical strength, and glass fiber stretch-proofing rope has, make the cable have better tensile strength, first protruding muscle layer and second protruding muscle layer all with the integrative extrusion molding of wearing layer, make the cable have better wearability, under mining environment, the edge wearing and tearing of cable are bigger, therefore the radius of second protruding muscle is greater than the radius of first protruding muscle, make the edge wearability of cable better.

The utility model provides a power cable, the cross-section is the platykurtic, and is more wear-resisting, resistant buckling, and has fine flame retardant efficiency and insulating effect, and the steel band provides better mechanical strength, and fire-retardant separation unit has increased fire-retardant separation effect, and under mining environment, the marginal wearing and tearing of cable are bigger, and consequently the radius of the protruding muscle of second is greater than the radius of first protruding muscle to make this application power cable's wear-resisting effect good.

Although the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.

Claims

1. The utility model provides a mining halogen-free low-smoke high-flame-retardant power cable, its characterized in that includes wearing layer (1), low-smoke halogen-free flame-retardant layer (2) and a plurality of moulding covering (3) that are a style of calligraphy range that set gradually from outer to interior, the upper surface and the lower surface of wearing layer (1) all are provided with a plurality of first protruding muscle (1.1), two sides of wearing layer (1) all are provided with a plurality of protruding muscle (1.2) of second, the radius of the protruding muscle (1.2) of second is greater than the radius of first protruding muscle (1.1), moulding covering (3) cross-section is the square of taking the fillet, the top of moulding covering (3) is provided with steel band (3.1), the bottom of moulding covering (3) is provided with down steel band (3.2), go up steel band (3.1) and lower steel band (3.2) all set up in moulding covering (2), two adjacent the fire-retardant unit (5) of separating that is provided with the I-shaped between moulding covering (3), fire-retardant unit (5) includes that two vertical bands (3.5) have between two vertical bands (3.5) and take (3.5) and two vertical bands (3.5) take down between two adjacent horizontal bands (3.5) have one vertical bands (5) take, every all be provided with cable core (4) in moulding covering (3), cable core (4) are including protective layer (4.1), external insulation layer (4.2), first fire-retardant layer (4.3), the fire-retardant layer of second (4.4) and sinle silk that set gradually from outer to inner, the sinle silk has a plurality ofly, the sinle silk includes the fire-retardant layer of mineral (4.5), mineral insulating layer (4.6) and conductor (4.7) that set gradually from outer to inner.

2. The mining halogen-free low-smoke high-flame-retardant power cable as claimed in claim 1, wherein the plurality of wire cores are distributed in an annular shape at equal intervals.

3. The mining halogen-free low-smoke high-flame-retardant power cable according to claim 1, characterized in that the first rib (1.1) and the second rib (1.2) both extend along the length direction of the cable.

4. The mining halogen-free low-smoke high-flame-retardant power cable according to claim 1, characterized in that the first rib (1.1) and the second rib (1.2) are integrally formed with the wear-resistant layer (1) by extrusion molding.

5. The mining halogen-free low-smoke high-flame-retardant power cable according to claim 1, characterized in that the upper horizontal band (5.1), the lower horizontal band (5.2) and the vertical separation band (5.3) are integrally formed by extrusion molding.

6. The mining halogen-free low-smoke high-flame-retardant power cable according to claim 1, characterized in that the shaped cladding (3) is made of polyethylene.

7. The mining halogen-free low-smoke high-flame-retardant power cable according to claim 1, characterized in that at least two glass fiber tensile ropes (5.4) are arranged in the flame-retardant separation unit (5).