CN217544223U

CN217544223U - Marine halogen-free low-smoke flame-retardant power cable

Info

Publication number: CN217544223U
Application number: CN202220480130.XU
Authority: CN
Inventors: 徐刚
Original assignee: Jiangsu Mingyang Cable Co ltd
Current assignee: Jiangsu Mingyang Cable Co ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-10-04
Anticipated expiration: 2032-03-07

Abstract

The utility model discloses a marine halogen-free low-smoke flame-retardant power cable relates to power cable technical field. Including the inner core, the outside parcel of inner core has insulating layer one, the even fixedly connected with frame piece of equidistance around insulating layer one, the quantity of frame piece is four, four frame pieces all present the triangular prism shape, the outside of frame piece is provided with a plurality of side core, four groups about a plurality of side core falls into about, every group includes three side core, the outside parcel of every group side core has insulating layer two, the outside and two adjacent frame piece fixed connection of insulating layer two, the outside of four insulating layer two does not contact, the outside fixed connection of frame piece separates the area, it corresponds in the gap that inserts between insulating layer two to separate the area, this marine halogen-free low cigarette fire-retardant power cable has utilized power cable's inner space, power cable's fire-retardant waterproof nature has been improved simultaneously.

Description

Marine halogen-free low-smoke flame-retardant power cable

Technical Field

The utility model relates to a power cable technical field specifically is a marine halogen-free low fire-retardant power cable of cigarette.

Background

The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater.

The marine cable is a wire cable used for power, lighting, control and communication transmission of various ships in river and sea and offshore or offshore buildings, and comprises a marine power cable, a marine control cable, a marine communication cable and the like. Generally, the marine power cable has a limited laying space and cannot adopt the same complete structure as the non-marine power cable. Most marine power cable on the market is owing to lay the space not enough at present, often can reduce the pile up of power cable protective sheath layer structure, but make power cable when the condition of catching fire appears in the form through reducing outside jacket layer structure, the jacket layer of ordinary material catches fire produced smog and has a harm nature, to the crew who can't flee after catching fire, this kind of power cable catches fire the back danger that can be very, consequently need for a marine halogen-free low smoke flame retardant power cable in order to solve the problem that above-mentioned exists urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a marine halogen-free low fire-retardant power cable of cigarette to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a marine steamed low fire-retardant power cable that smokes that lacks, includes the inner core, the outside parcel of inner core has insulating layer one, the even fixedly connected with frame piece of equidistance around insulating layer one, the quantity of frame piece is four, four the frame piece all presents the triangular prism shape, the outside of frame piece is provided with a plurality of side core, a plurality of four groups about the side core falls into, and every group includes threely the side core, every group the outside parcel of side core has insulating layer two, the outside and adjacent two of insulating layer two frame piece fixed connection, four the outside of insulating layer two does not contact, the outside fixed connection of frame piece separates the area, it corresponds in the gap that inserts between two insulating layers to separate the area, separate that one end fixedly connected with protection shield of taking away from the frame piece, the protection shield presents the arc plate shape.

Preferably, the inner core and the side core are formed by twisting a plurality of core wires.

Preferably, the insulating layer wrapping side core presents a structure with a triangular cross section.

Preferably, the middle part of the separation belt is embedded and fixedly connected with a partition plate, the inner space of the partition plate is filled with waterproof paste, and the outer space of the partition plate is filled with flame retardant paste.

Preferably, four the outside parcel of protection shield has mica tape one and mica tape two, mica tape one and two spiral winding in the outside of protection shield of mica tape, mica tape one and two crisscross settings of mica tape and linking department cover each other, the outside parcel of mica tape one and mica tape two has the surrounding layer, the material of surrounding layer includes the fire-retardant material of low smoke and zero halogen, the outside parcel of surrounding layer has interior sheath. The inner sheath layer is composed of low-smoke halogen-free flame-retardant polyolefin.

Preferably, the outer side of the inner protection layer is provided with a flame-retardant layer, the flame-retardant layer is tubular, the inner side of the flame-retardant layer is fixedly connected with armor plate layers with equal intervals, the number of the armor plate layers is four, the armor plate layers are arc-shaped, the armor plate layers are woven by metal wires, the inner side wall of the flame-retardant layer is inserted and connected into one end of the armor plate layer close to the flame-retardant layer, and the inner protection layer is fixedly connected with one end of the armor plate layer close to the inner protection layer.

Preferably, a waterproof sleeve is fixedly connected to the middle of the flame-retardant layer in an embedded mode, and a waterproof agent is arranged inside the waterproof sleeve.

Preferably, the flame-retardant sleeve is fixedly connected with the inner side wall of the flame-retardant layer in an embedded mode and is evenly embedded in the outer side wall of the flame-retardant layer at equal intervals, and a flame retardant is arranged in the flame-retardant sleeve.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) This marine no halogen low fire-retardant power cable of cigarette establishes the structure through the package that changes the side core, establishes the triangle stable structure with the side core package through insulating layer two, is connecting side core, insulating layer two and inner core, insulating layer one through the frame piece to carry out structural reinforcement with power cable's inside in limited space, thereby the effectual toughness that has improved power cable.

(2) This marine no halogen low fire-retardant power cable of cigarette, the inboard space packing of baffle has waterproof cream, and the outside space packing of baffle has fire-retardant cream, utilizes power cable core inner space clearance, adds waterproof cream and fire-retardant cream, has utilized power cable's inner space, has improved power cable's fire-retardant waterproof nature simultaneously.

(3) This marine no halogen low fire-retardant power cable of cigarette fills waterproof cream and fire-retardant cream through cable core inside at power cable, still is provided with waterproof cover and fire-retardant cover in the inside on fire-retardant layer in addition to set up dual protective structure in the limited space of laying of marine power cable, thereby further promoted marine power cable's fire-retardant waterproof performance.

(4) This marine no halogen low fire-retardant power cable of cigarette reforms transform through the armor plywood with power cable, and armor plywood wire is woven and is formed, exists in power cable's inside with the arc structure simultaneously, has propped the space between interior sheath and the fire-retardant layer to make fire-retardant layer and interior sheath be complete rigid contact, thereby the effectual inner structure layer who protects power cable has improved marine power cable's life.

(5) This marine zero halogen low-smoke flame-retardant power cable connects armor plywood, waterproof cover and fire-retardant cover through embedding respectively in fire-retardant layer inside and outside, when guaranteeing marine power cable's functions such as fire-retardant waterproof of low smoke and zero halogen, the effectual shared space of power cable self of having practiced thrift to guarantee marine power cable's the practicality of laying.

Drawings

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

FIG. 2 is a schematic view of the inner core of the present invention;

fig. 3 is a schematic view of the flame retardant layer of the present invention.

In the figure: 1. an inner core; 2. a first insulating layer; 3. a frame block; 4. a side core; 5. a second insulating layer; 6. a spacer tape; 7. a protection plate; 8. a partition plate; 9. waterproof paste; 10. flame retardant paste; 11. a mica tape I; 12. a mica tape II; 13. an outer cladding; 14. an inner sheath layer; 15. a flame retardant layer; 16. armoured laminate; 17. a waterproof jacket; 18. a water repellent; 19. and (4) a flame-retardant sleeve.

Detailed Description

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a marine halogen-free low smoke flame retardant power cable, including inner core 1, the outside parcel of inner core 1 has insulating layer one 2, the even fixedly connected with frame piece 3 of equidistance around insulating layer one 2, the quantity of frame piece 3 is four, four frame pieces 3 all present the triangular prism shape, the outside of frame piece 3 is provided with a plurality of side core 4, four groups about a plurality of side core 4 falls into, every group includes three side core 4, the outside parcel of every group side core 4 has insulating layer two 5, the outside and two adjacent frame piece 3 fixed connection of insulating layer two 5, the outside of four insulating layers two 5 does not contact, the outside fixed connection of frame piece 3 separates area 6, it corresponds in the gap between inserting insulating layer two 5 to separate area 6, separate area 6 and keep away from that one end fixedly connected with protection shield 7 of frame piece 3, protection shield 7 presents the arc plate shape.

The inner core 1 and the side core 4 are formed by twisting a plurality of core wires.

The second insulating layer 5 wraps the side core 4 to form a structure with a triangular cross section.

The middle part of the partition belt 6 is embedded and fixedly connected with a partition plate 8, the inner space of the partition plate 8 is filled with waterproof paste 9, and the outer space of the partition plate 8 is filled with flame retardant paste 10.

The outside parcel of four protection shields 7 has one mica tape 11 and two mica tape 12, and one mica tape 11 and two 12 spiral windings in the outside of protection shield 7 of mica tape, and one mica tape 11 and two 12 crisscross settings of mica tape just link up the department and cover each other, and the outside parcel of one mica tape 11 and two 12 of mica tape has surrounding layer 13, and the material of surrounding layer 13 includes the fire-retardant material of low smoke and zero halogen, and the outside parcel of surrounding layer 13 has interior sheath 14. Inner sheath 14 is comprised of a low smoke, halogen-free, flame retardant polyolefin.

The outside of interior sheath 14 is provided with fire-retardant layer 15, fire-retardant layer 15 presents the tubulose, the even fixedly connected with armor 16 of the inboard equidistance of fire-retardant layer 15, the quantity of armor 16 is four, four armor 16 present the arc plate shape, armor 16 is woven by the wire and is formed, the inside wall of connecting fire-retardant layer 15 is inserted at that one end that is close fire-retardant layer 15 to armor 16, that one end fixed connection interior sheath 14 that is close interior sheath 14 is being protected to armor 16.

The middle part of the flame-retardant layer 15 is embedded and fixedly connected with a waterproof sleeve 17, and a waterproof agent 18 is arranged inside the waterproof sleeve 17.

The flame retardant sleeve 19 is fixedly connected with the inner side wall of the flame retardant layer 15 in an embedded mode and evenly arranged in the outer side wall, and the flame retardant is arranged inside the flame retardant sleeve 19.

The utility model discloses a change the package of side core 4 and establish the structure, establish into triangle stable structure with side core 4 package through insulating layer two 5, connect side core 4, insulating layer two 5 and inner core 1, insulating layer one 2 through frame piece 3 to carry out the reinforcement of structurality with power cable's inside in limited space, thereby the effectual toughness that improves power cable.

The utility model discloses the inboard space packing of baffle 8 has waterproof cream 9, and the outside space packing of baffle 8 has fire-retardant cream 10, utilizes power cable core inner space clearance, adds waterproof cream 9 and fire-retardant cream 10, has utilized power cable's inner space, has improved power cable's fire-retardant waterproof nature simultaneously.

The utility model discloses a waterproof cream 9 and fire-retardant cream 10 are filled to inside at power cable's cable core, still are provided with waterproof cover 17 and fire-retardant cover 19 in fire-retardant layer 15's inside in addition to set up dual protection structure in the limited space of laying of marine power cable, thereby further promoted marine power cable's fire-retardant waterproof performance.

The utility model discloses a reform transform power cable's

armor plywood

16, 16 wires of armor plywood are woven and are formed, exist in power cable's inside with the arc structure simultaneously, have propped up the space between interior sheath 14 and the fire-retardant layer 15 to make fire-retardant layer 15 and interior sheath 14 not complete rigid contact, thereby the effectual inner structure layer who protects power cable has improved marine power cable's life.

The utility model discloses an imbed respectively inside and outside fire-retardant layer 15 and connect armor plywood 16, waterproof cover 17 and fire-retardant cover 19, when guaranteeing functions such as fire-retardant waterproof of low smoke and zero halogen of marine power cable, the effectual shared space of power cable self of having practiced thrift to guarantee the practicality of laying of marine power cable.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a marine halogen-free low fire-retardant power cable of cigarette, includes inner core (1), the outside parcel of inner core (1) has insulating layer (2), its characterized in that: the even fixedly connected with frame piece (3) of equidistance around insulating layer (2), the quantity of frame piece (3) is four, four frame piece (3) all presents the triangular prism shape, the outside of frame piece (3) is provided with a plurality of side core (4), a plurality of side core (4) divide into about four groups, every group is including three side core (4), every group the outside parcel of side core (4) has insulating layer two (5), the outside and adjacent two of insulating layer two (5) frame piece (3) fixed connection, four the outside of insulating layer two (5) does not contact, the outside fixed connection of frame piece (3) separates area (6), separate in the gap that area (6) correspond between inserting insulating layer two (5), separate area (6) and be keeping away from that one end fixedly connected with (7) of frame piece (3), plate shape protection shield (7) present the arc.

2. The marine halogen-free low-smoke flame-retardant power cable according to claim 1, characterized in that: the inner core (1) and the side cores (4) are formed by twisting a plurality of core wires.

3. The marine halogen-free low-smoke flame-retardant power cable according to claim 1, characterized in that: the side core (4) is wrapped by the second insulating layer (5) to form a structure with a triangular cross section.

4. The marine halogen-free low-smoke flame-retardant power cable according to claim 1, characterized in that: the middle of the separation belt (6) is embedded with a partition plate (8), the inner space of the partition plate (8) is filled with waterproof paste (9), and the outer space of the partition plate (8) is filled with flame-retardant paste (10).

5. The marine halogen-free low-smoke flame-retardant power cable according to claim 1, characterized in that: the outer sides of the four protection plates (7) are wrapped with a first mica tape (11) and a second mica tape (12), the first mica tape (11) and the second mica tape (12) are spirally wound on the outer side of the protection plates (7), the first mica tape (11) and the second mica tape (12) are arranged in a staggered mode, joints of the first mica tape (11) and the second mica tape (12) are mutually covered, the outer sides of the first mica tape (11) and the second mica tape (12) are wrapped with an outer cladding layer (13), the outer cladding layer (13) comprises a low-smoke halogen-free flame-retardant material, and the outer side of the outer cladding layer (13) is wrapped with an inner protection layer (14); the inner sheath layer (14) is composed of low-smoke halogen-free flame-retardant polyolefin.

6. The marine halogen-free low-smoke flame-retardant power cable according to claim 5, characterized in that: the outside of interior sheath (14) is provided with fire-retardant layer (15), fire-retardant layer (15) present the tubulose, the inboard equidistant even fixedly connected with armor plate (16) of fire-retardant layer (15), the quantity of armor plate (16) is four, four armor plate (16) present the arc plate shape, armor plate (16) are woven by the wire and are formed, the inside wall of connecting fire-retardant layer (15) is inserted in that one end of armor plate (16) being close fire-retardant layer (15), armor plate (16) are in that one end fixed connection interior sheath (14) that is close interior sheath (14).

7. The marine halogen-free low-smoke flame-retardant power cable according to claim 6, characterized in that: the middle part of the flame-retardant layer (15) is embedded and fixedly connected with a waterproof sleeve (17), and a waterproof agent (18) is arranged inside the waterproof sleeve (17).

8. The marine halogen-free low-smoke flame-retardant power cable according to claim 7, characterized in that: the flame-retardant layer is characterized in that a flame-retardant sleeve (19) is fixedly connected with the inner side wall of the flame-retardant layer (15) in an embedded mode and is uniform in the inner side wall at equal intervals, and a flame retardant is arranged inside the flame-retardant sleeve (19).