CN214123564U

CN214123564U - Acid-alkali-resistant, tensile, fire-resistant and flame-retardant power cable

Info

Publication number: CN214123564U
Application number: CN202022771684.9U
Authority: CN
Inventors: 吕国武
Original assignee: Jiangsu Huaya Cable Co ltd
Current assignee: Jiangsu Huaya Cable Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-09-03
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses an acid and alkali-resistant tensile fire-resistant fire-retardant power cable relates to the power cable correlation field, remains to verify for the refractiveness of solving present cable outer protective sheath new material, and the fire-retardant time of new material is short, can not satisfy the problem of fire-retardant requirement. The wire group is a bundling wire, a first insulating layer is bonded on the outer wall of the wire group, a liquid flame-retardant layer is bonded on the outer wall of the first insulating layer, adjacent liquid flame-retardant layers are connected through bonding, the partitions of the adjacent liquid flame-retardant layers are kept not to interfere with each other, and a groove is formed in the outer wall of one side of each liquid flame-retardant layer. The utility model discloses an in feed liquor pipe and the liquid fire-retardant layer through setting up, the condition of a fire takes place at the outer wall on liquid fire-retardant layer, because liquid fire retardant has been filled up in the liquid fire-retardant layer, the liquid fire-retardant layer can keep the low temperature state for a longer time when meetting the condition of a fire, is difficult for breaking, can last longer flame retardant efficiency, and flame retardant efficiency is good.

Description

Acid-alkali-resistant, tensile, fire-resistant and flame-retardant power cable

Technical Field

The utility model relates to a power cable correlation field specifically is an acid and alkali-resistance tensile fire-resistant fire-retardant power cable.

Background

The cable generally includes the conductor core and wraps up the insulating jacket layer in the conductor core outside, the outer insulating jacket layer of traditional cable is mostly inflammable, receive acid in the environment, when alkaline material corrodes when insulating jacket layer, ageing phenomenon appears very easily, when leading to the electric wire to take place the short circuit, because insulating jacket layer burns very easily, and arouse the condition of a fire from this, in addition, when the condition of a fire takes place in the outside, the insulating jacket layer of cable also burns very easily, and then make the cable take place the short circuit and damage.

The fire prevention technology that current power cable adopted sets up the one deck and sets up in outside fire prevention cover, generally adopts new material technology, leads to the cost to improve, and the fire resistance of new material remains to be verified, and the fire-retardant time of new material is short, also can not satisfy fire-retardant requirement, consequently, an acid and alkali resistance tensile fire-resistant fire-retardant power cable is urgently needed to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an acid and alkali-resistance tensile fire-resistant fire-retardant power cable to the fire resistance of the new material that proposes in solving above-mentioned background art remains to be verified, and the fire-retardant time of new material is short, can not satisfy the problem of fire-retardant requirement.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an acid and alkali-resistant tensile fire-resistant fire-retardant power cable, includes wire group, wire group is the line tied in a bundle, wire group's outer wall bonds and has the first insulation layer, the outer wall on first insulation layer bonds and has the fire-retardant layer of liquid, through bonding connection between the fire-retardant layer of liquid is adjacent, keeps cutting off mutual noninterference between the fire-retardant layer of adjacent liquid, the fluting has been seted up to one side outer wall on the fire-retardant layer of liquid, the fluting is located the central point on the fire-retardant layer of liquid and puts, the feed liquor pipe has been cup jointed to the grooved inner wall, the block has been cup jointed on the top of feed liquor pipe, the fire-retardant layer of liquid includes two-layer rubber jacket layer and the fire-retardant filler of liquid, and the fire-retardant filler of liquid fills between two-layer rubber jacket layers.

In a further embodiment, a fire extinguishing pipe is adhered to the outer wall of the first insulating layer, the first insulating layer comprises an insulating coating and an insulating resin layer, and the insulating coating is sprayed on the outer wall of the insulating resin layer.

In a further embodiment, the fire extinguishing pipe is provided with a placing groove on the inner wall, and a fire extinguishing agent bag is placed on the inner wall of the placing groove.

In a further embodiment, the fire extinguishing pipe is provided with a through hole on the outer wall.

In a further embodiment, the through-hole communicates the fire suppressant packet inside the fire suppression tube with the liquid fire retardant layer.

In a further embodiment, the outer wall on fire-retardant layer of liquid state has cup jointed steel wire fastening layer, steel wire fastening layer includes wire net and asbestos filling layer, the wire net alternates inside asbestos filling layer.

In a further embodiment, the outer wall of the steel wire fastening layer is sleeved with a second insulating layer, the outer wall of the second insulating layer is sleeved with a protective layer, the protective layer comprises a silica gel jacket layer and a plastic jacket layer, and the plastic jacket layer is sleeved on the outer wall of the silica gel jacket layer.

In a further embodiment, the wire group comprises a plurality of conductive wires, a plurality of first supporting shells and a second supporting shell, the plurality of conductive wires are arranged in an annular array, the plurality of first supporting shells are arranged in an annular array, the second supporting shells are respectively connected with the first supporting shells through bolts, and the first supporting shells and the second supporting shells are filled with fireproof filling layers.

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

1. the utility model discloses an in feed liquor pipe and the liquid fire-retardant layer through setting up, the condition of a fire takes place at the outer wall on liquid fire-retardant layer, because liquid fire retardant has been filled up in the liquid fire-retardant layer, the liquid fire-retardant layer can keep the low temperature state for a longer time when meetting the condition of a fire, is difficult for breaking, can last longer flame retardant efficiency, and flame retardant efficiency is good.

2. The utility model discloses an in through-hole, fire extinguishing pipe and the fire extinguishing agent package through setting up, finally to lead to the liquid fire-retardant layer to break the back because of some other external forces, during water enters into fire extinguishing pipe through the through-hole, the fire extinguishing agent package is dissolved by water finally, breaks the fast-speed carbon dioxide gas of outside blowout, realizes the function of putting out a fire, further promotes the fire behavior of whole cable conductor.

3. The utility model discloses a well first insulation layer through setting up, the wire group that can place the inner wall carries out insulation protection, promotes the insulating nature of wire group, prevents to meet the water and takes place the short circuit.

4. The utility model discloses a well second insulating layer through setting up, the second insulating layer can carry out preliminary fire-retardant when the cable conductor meets with the conflagration.

5. The utility model discloses a well steel wire fastening layer through setting up, steel wire fastening layer can tighten the cable conductor firmly, makes it form the parcel with the cable conductor all the time when meeting with the conflagration, and air admission can be avoided in narrow and small space, makes its fire-retardant effect promote.

6. The utility model discloses an in the inoxidizing coating through setting up, the outmost inoxidizing coating wearability of cable conductor is better, can guarantee as far as that the cable conductor produces the damage at the in-process that pulls.

Drawings

FIG. 1 is a schematic cross-sectional structural view of the present invention;

fig. 2 is a perspective view of the middle open groove portion of the present invention;

FIG. 3 is a perspective view of a fire extinguishing pipe section of the present invention;

fig. 4 is a cross-sectional view of a lead set in accordance with the present invention;

fig. 5 is the enlarged schematic view of the middle protective layer and the steel wire fastening layer of the present invention.

In the figure: 1. a wire group; 2. a liquid flame retardant layer; 3. a first insulating layer; 4. a second insulating layer; 5. a fire extinguishing agent pack; 6. a through hole; 7. a liquid inlet pipe; 8. grooving; 9. fire extinguishing pipes; 10. a steel wire fastening layer; 1001. an asbestos-filled layer; 1002. steel wire mesh; 11. a protective layer; 1101. a plastic jacket layer; 1102. a silica gel jacket layer; 12. a refractory filler layer; 13. a conductive wire; 14. a first support housing; 15. a connecting rod; 16. a second support housing.

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.

Referring to fig. 1-5, the present invention provides an embodiment: the utility model provides an acid and alkali-resistant tensile fire-resistant fire-retardant power cable, including wire group 1, wire group 1 is the bunch line, wire group 1's outer wall bonds and has first insulation layer 3, first insulation layer 3's outer wall bonds and has liquid fire-retardant layer 2, through adhesive connection between liquid fire-retardant layer 2 is adjacent, keep cutting off mutual noninterference between the adjacent liquid fire-retardant layer 2, fluting 8 has been seted up to one side outer wall on liquid fire-retardant layer 2, fluting 8 is located the central point of liquid fire-retardant layer 2 and puts, feed liquor pipe 7 has been cup jointed to fluting 8's inner wall, the block has been cup jointed on feed liquor pipe 7's top, liquid fire-retardant layer 2 includes two-layer rubber jacket layer and liquid fire-retardant filler, and liquid fire-retardant filler fills between two-layer rubber jacket layer.

Further, the fire extinguishing pipe 9 is bonded to the outer wall of the first insulating layer 3, the first insulating layer 3 includes an insulating coating and an insulating resin layer, and the insulating coating is sprayed on the outer wall of the insulating resin layer.

Further, the inner wall of the fire extinguishing pipe 9 is provided with a placing groove, and the fire extinguishing agent bag 5 is placed on the inner wall of the placing groove.

Further, the outer wall of the fire extinguishing pipe 9 is provided with a through hole 6.

Further, the through hole 6 connects the fire extinguishing agent bag 5 in the fire extinguishing pipe 9 with the liquid flame retardant layer 2.

Further, the outer wall on fire-retardant layer 2 of liquid state has cup jointed steel wire fastening layer 10, and steel wire fastening layer 10 includes wire net 1002 and asbestos filling layer 1001, wire net 1002 alternates inside asbestos filling layer 1001.

Further, the outer wall of steel wire fastening layer 10 has cup jointed second insulating layer 4, and the outer wall of second insulating layer 4 has cup jointed the inoxidizing coating 11, and inoxidizing coating 11 includes silica gel jacket layer 1102 and plastics jacket layer 1101, and plastics jacket layer 1101 cup joints in the outer wall of silica gel jacket layer 1102.

Further, the wire group 1 includes a plurality of electric leads 13, a plurality of first support shells 14 and a second support shell 16, a plurality of electric leads 13 are arranged in an annular array, a plurality of first support shells 14 are arranged in an annular array, the second support shell 16 is respectively connected with the first support shells 14 through bolts to form a connecting rod 15, and the fire-resistant filling layer 12 is filled outside the first support shells 14 and the second support shells 16.

The working principle is as follows: when the cable is used, the cable is laid at a designated position, the protective layer arranged on the outmost layer of the cable has better wear resistance, the cable can be guaranteed to be damaged in the dragging process as far as possible, the cable can be firmly fastened through the steel wire fastening layer, the cable can be always wrapped when encountering a fire, the narrow space can avoid air from entering, the flame-retardant effect of the cable is improved, the second insulating layer 4 can carry out preliminary flame retardance when the cable encounters the fire, the second insulating layer 4 is burnt when the fire is large, the fire happens to the outer wall of the liquid flame-retardant layer 2 at the moment, as the liquid flame-retardant layer 2 is filled with water, the liquid flame-retardant layer 2 is not easy to break when encountering the fire, the flame-retardant effect can last for a longer time, the flame-retardant effect is good, and finally after the liquid flame-retardant layer 2 breaks due to other external forces, the water enters the fire extinguishing pipe 9 through the through hole 6, finally, fire extinguishing agent package 5 is dissolved by water, breaks the high-speed carbon dioxide gas of outside blowout, realizes the function of putting out a fire, further promotes the fire behavior of whole cable conductor, and the first insulation layer 3 of inside setting can carry out insulation protection to the wire group that the inner wall was placed, promotes the insulating nature of wire group 1, prevents to meet water and takes place the short circuit.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an acid and alkali-resistance tensile fire-resistant fire-retardant power cable, includes wire group (1), its characterized in that: the wire group (1) is a bundling wire, the outer wall of the wire group (1) is bonded with a first insulating layer (3), the outer wall of the first insulating layer (3) is bonded with a liquid flame-retardant layer (2), the adjacent liquid flame-retardant layers (2) are connected through bonding, the adjacent liquid flame-retardant layers (2) are kept to be separated from each other and not interfered with each other, one side outer wall of the liquid flame-retardant layer (2) is provided with a groove (8), the groove (8) is located at the central position of the liquid flame-retardant layer (2), the inner wall of the groove (8) is sleeved with a liquid inlet pipe (7), the top end of the liquid inlet pipe (7) is sleeved with a cover cap, the liquid flame-retardant layer (2) comprises two rubber sleeve layers and a liquid flame-retardant filler, and the liquid flame-retardant filler is filled between the two rubber sleeve layers.

2. The acid and alkali resistant, tensile, fire resistant and flame retardant power cable of claim 1, characterized in that: the fire extinguishing pipe (9) is bonded to the outer wall of the first insulating layer (3), the first insulating layer (3) comprises an insulating coating and an insulating resin layer, and the insulating coating is sprayed on the outer wall of the insulating resin layer.

3. The acid and alkali resistant, tensile, fire resistant and flame retardant power cable of claim 2, characterized in that: the fire extinguishing tube is characterized in that a placing groove is formed in the inner wall of the fire extinguishing tube (9), and a fire extinguishing agent bag (5) is placed on the inner wall of the placing groove.

4. The acid and alkali resistant, tensile, fire resistant and flame retardant power cable of claim 3, characterized in that: the outer wall of the fire extinguishing pipe (9) is provided with a through hole (6).

5. The acid and alkali resistant, tensile, fire resistant and flame retardant power cable of claim 4, characterized in that: the fire extinguishing agent bag (5) in the fire extinguishing pipe (9) is communicated with the liquid flame-retardant layer (2) through the through hole (6).

6. The acid and alkali resistant, tensile, fire resistant and flame retardant power cable of claim 1, characterized in that: the outer wall of liquid fire-retardant layer (2) has cup jointed steel wire fastening layer (10), steel wire fastening layer (10) include wire net (1002) and asbestos filling layer (1001), wire net (1002) alternate inside asbestos filling layer (1001).

7. The acid and alkali resistant, tensile, fire resistant and flame retardant power cable of claim 6, characterized in that: the outer wall of steel wire fastening layer (10) has cup jointed second insulating layer (4), the outer wall of second insulating layer (4) has cup jointed inoxidizing coating (11), inoxidizing coating (11) include silica gel jacket layer (1102) and plastics jacket layer (1101), and plastics jacket layer (1101) cup joint in the outer wall of silica gel jacket layer (1102).

8. The acid and alkali resistant, tensile, fire resistant and flame retardant power cable according to claim 1, wherein the conductor set (1) comprises a plurality of conductive wires (13), a plurality of first supporting shells (14) and a second supporting shell (16), the plurality of conductive wires (13) are arranged in an annular array, the plurality of first supporting shells (14) are arranged in an annular array, the second supporting shells (16) are respectively connected with the first supporting shells (14) through connecting rods (15) through bolts, and the fire resistant filling layers (12) are filled outside the first supporting shells (14) and the second supporting shells (16).