CN214671890U

CN214671890U - Flexible tensile fireproof cable

Info

Publication number: CN214671890U
Application number: CN202120967811.4U
Authority: CN
Inventors: 朱进; 钟曙光
Original assignee: Chongqing Seven Security Wire And Cable Group Co ltd
Current assignee: Chongqing Seven Security Wire And Cable Group Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-11-09
Anticipated expiration: 2031-05-07

Abstract

The utility model relates to the technical field of cables, in particular to a flexible tensile fireproof cable, which comprises a cable body, wherein the cable body comprises a cable core main body and an outer sheath arranged outside the cable core main body, the outer part of the outer sheath is provided with a high temperature resistant coating, the cable core main body comprises a plurality of strands of conductive cable cores, a reinforced steel wire core, a silica gel hose and a first filling layer, the plurality of strands of conductive cable cores and the silica gel hose are arranged outside the reinforced steel wire core, the conductive cable cores sequentially comprise a conducting wire, a shielding layer, an insulating layer, a braided layer and an outer sheath layer from inside to outside, a conductor filling layer is arranged between the conducting wire and the shielding layer, a hollow flexible sleeve, an anti-corrosion layer, a fireproof layer and an armor layer are sequentially arranged between the cable core main body and the outer sheath from inside to outside, a plurality of flexible inner cores arranged around the conductive cable cores are arranged in the flexible sleeve, and the flexible inner core is filled with flame-retardant powder. The utility model discloses it is rational in infrastructure, higher practical value has.

Description

Flexible tensile fireproof cable

Technical Field

The utility model relates to the technical field of cables, concretely relates to flexible tensile fireproof cable.

Background

As is well known, cables are used in various industries, such as power systems: the electric wire and cable products adopted by the electric power system mainly comprise an overhead bare wire, a bus bar (bus), an electric power cable (plastic cable, oilpaper cable (basically replaced by the plastic electric power cable), a rubber sleeve cable, an overhead insulated cable), a branch cable (replacing part of the bus), an electromagnetic wire, an electric equipment wire and cable for electric power equipment and the like; information transmission: the electric wire and cable used for the information transmission system mainly comprises a local telephone cable, a television cable, an electronic cable, a radio frequency cable, an optical fiber cable, a data cable, an electromagnetic wire, an electric power communication or other composite cables and the like; an instrument system: almost all other products except the overhead bare wire are applied, but mainly power cables, electromagnetic wires, data cables, instrument cables and the like, and in some mechanical industries, especially engineering machinery, the cables are indispensable tools for transmitting power. The cable is widely applied due to the advantages of excellent power transmission performance, small occupied space and the like, but problems still exist in the using process of the cable, for example, the cable is not easy to lay due to overlarge hardness, and the cable with overlarge hardness is easy to crack particularly in places with overlarge bending degree.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a flexible tensile fireproof cable solves above difficult problem.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a flexible tensile fireproof cable, includes the cable body, the cable body includes the sinle silk main part and locates the outside oversheath of sinle silk main part, the outside of oversheath is equipped with high temperature resistant coating, the sinle silk main part includes stranded conductive core, strengthens steel wire core, silica gel hose and first filling layer, stranded conductive core, strengthens steel wire core and silica gel hose and is located in the first filling layer, strengthen the steel wire core and locate the middle part of sinle silk main part, the stranded conductive core and silica gel hose locate the outside of strengthening the steel wire core, just conductive core includes wire, shielding layer, insulating layer, weaving layer and surrounding layer from inside to outside in proper order, the wire with be equipped with the conductor filling layer between the shielding layer, the sinle silk main part with be equipped with hollow flexible cover, anti-corrosion layer, flame retardant coating from inside to outside in proper order between the oversheath, The cable comprises an armor layer, wherein a plurality of flexible inner cores arranged around a conductive wire core are arranged in the flexible sleeve in a penetrating mode, flame-retardant powder (not marked in the drawing) is filled in the flexible inner cores, and the inner layer structure of the cable body is integrally coated by an outer layer structure in sequence.

Preferably, the shielding layer is an anti-wave sleeve woven by copper-clad aluminum wires.

Preferably, the insulating layer is silicon rubber.

Preferably, the woven layer is made of glass fiber yarns.

Preferably, the first filling layer is a halogen-free low-smoke high-flame-retardant glass fiber rope.

Preferably, the fireproof layer is a fluorine mica tape fireproof layer.

Preferably, the anti-corrosion layer is made of polyetheretherketone.

Preferably, the armor layer is made of thin steel wires.

Preferably, the outer sheath is low-smoke halogen-free flame-retardant polyolefin.

Preferably, the high-temperature-resistant coating is prepared by uniformly coating phosphate lead powder inorganic paint.

A flexible tensile fireproof cable has the following technical effects:

the flexible tensile fireproof cable provided by the utility model adopts a multilayer structure for protection, and under the action of each structural layer, the cable has good electromagnetic shielding performance, fire resistance, mechanical performance and flexibility; after the cable is ignited, the rapid spread and expansion of fire can be avoided; thereby greatly improve stability, reliability when the cable moves, the utility model discloses rational in infrastructure has higher practical value.

Drawings

Fig. 1 is a schematic structural view of a flexible tensile fireproof cable according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

as shown in fig. 1, a flexible tensile fireproof cable comprises a cable body, wherein the cable body comprises a wire core main body and an outer sheath 15 arranged outside the wire core main body, a high temperature resistant coating 16 is arranged outside the outer sheath 15, in this embodiment, the high temperature resistant coating 16 is formed by uniformly coating phosphate lead powder inorganic coating, and the fire resistance of the cable can be further improved by arranging the high temperature resistant coating. The sinle silk main part includes stranded conductor core, strengthens steel wire core 2, silica gel hose 3 and first filling layer 9, and in this embodiment, conductor core has 4, and the silica gel hose has 4, first filling layer 9 is for there being not steamed low cigarette high flame retardant glass fiber rope, guarantees the whole flame retardant property of cable. The conductive wire core, the reinforcing steel wire core 2 and the silica gel hose 3 are arranged in the first filling layer 9, the reinforcing steel wire core 2 is arranged in the middle of the wire core main body, the conductive wire core and the silica gel hose 3 are arranged outside the reinforcing steel wire core 2, the tensile strength of the cable body is greatly improved due to the arranged reinforcing steel wire core, construction and installation are facilitated, the service life of the cable body is prolonged, the silica gel hoses are uniformly distributed in the cable body, the tensile strength of the cable is improved due to the silica gel hoses and the reinforcing steel wire core, meanwhile, the silica gel hose can provide a buffer space when the cable expands with heat and contracts with cold, the skin of the cable is prevented from being broken, the service life of the cable is prolonged, the conductive wire core sequentially comprises a wire 1, a shielding layer 4, an insulating layer 5, a braided layer 6 and an outer wrapping layer 7 from inside to outside, and the shielding layer 4 is a wave-proof sleeve braided by copper-clad aluminum wires, the wave-proof sleeve woven by the copper-clad aluminum wires can shield interference information, avoids interference on signals and information transmitted by control wires and cables, does not need to be penetrated by a pipe, improves the corrosion resistance of the cable, is an excellent conductor, is a best grounding wire, is continuous to the whole length of the cable, and greatly improves the grounding protection sensitivity and reliability of the cable; the outer cladding layer protects the shielding layer and the woven layer, and can refer to the outer cladding layer in CN202021055439.1 and the patent name of fireproof flexible low-voltage power cable; the braided layer 6 is made of glass fiber yarns, and each conductive wire core is braided with the glass fiber yarns with the braiding density of 90-98% to form a composite temperature-resistant layer; the insulating layer 5 is made of silicon rubber which has excellent insulating property and can bear the working temperature not lower than 200 ℃; the conductor filling layer 8 is arranged between the lead 1 and the shielding layer 4, the conductor filling layer can refer to the conductor filling layer in the patent with the patent number of CN202021390003.8 and the patent name of fireproof power cable, and the conductor filling layer is arranged, so that the improvement of the conductive capacity and the transmission efficiency of the conductive wire core is facilitated. The cable core comprises a cable core main body and an outer sheath 15, wherein a hollow flexible sleeve 10, an anti-corrosion layer 12, a fireproof layer 13 and an armor layer 14 are sequentially arranged between the cable core main body and the outer sheath 15 from inside to outside, the armor layer is made of thin steel wires, the diameter of each steel wire is 0.1-1.0mm, the tensile dragging capacity of the cable is improved, the high flexibility of the cable is guaranteed, meanwhile, the cable has better wear resistance, the service life of the cable is further prolonged, a plurality of flexible inner cores 11 arranged around the conductive cable cores penetrate through the flexible sleeve 10, flame retardant powder (not marked in the drawing) is filled in the flexible inner cores 11, the flexibility of the cable can be improved through the flexible sleeve, meanwhile, the flame retardant powder filled in the flexible inner cores can overflow after the cable is ignited, on one hand, an external fire source is extinguished, on the other hand, the inner cores of the conductor can be directly coated on the outer surface, so that the high-temperature flame spread is prevented, and the flame retardant purpose is achieved, the fireproof layer 13 is a fluorine mica tape fireproof layer which can improve fireproof performance, the anti-corrosion layer 12 is made of polyether-ether-ketone, and the cable is protected from corrosion through the anti-corrosion layer. The inner layer structure of the cable body is integrally coated by the outer layer structure in sequence.

In this embodiment, the outer sheath 15 is low-smoke halogen-free flame-retardant polyolefin.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Finally, it should be noted that: various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, to the extent that such modifications and variations of the present invention fall within the scope of the present claims and their equivalents, it is intended that the present invention encompass such modifications and variations as well.

Claims

1. The flexible tensile fireproof cable is characterized by comprising a cable body, wherein the cable body comprises a cable core main body and an outer sheath (15) arranged outside the cable core main body, a high-temperature-resistant coating (16) is arranged outside the outer sheath (15), the cable core main body comprises a plurality of strands of conductive cable cores, a reinforcing steel wire core (2), a silica gel hose (3) and a first filling layer (9), the plurality of strands of conductive cable cores, the reinforcing steel wire core (2) and the silica gel hose (3) are positioned in the first filling layer (9), the reinforcing steel wire core (2) is arranged in the middle of the cable core main body, the plurality of strands of conductive cable cores and the silica gel hose (3) are arranged outside the reinforcing steel wire core (2), and the conductive cable cores sequentially comprise a conducting wire (1), a shielding layer (4), an insulating layer (5), a braided layer (6) and an outer cladding layer (7) from inside to outside, the cable is characterized in that a conductor filling layer (8) is arranged between the conductor (1) and the shielding layer (4), a wire core main body and a hollow flexible sleeve (10), an anti-corrosion layer (12), a fireproof layer (13) and an armor layer (14) are sequentially arranged between the outer sheath (15) from inside to outside, a plurality of flexible inner cores (11) arranged around the conductive wire core are arranged in the flexible sleeve (10) in a penetrating mode, flame-retardant powder is filled in the flexible inner cores (11), and the inner layer structure of the cable body is sequentially coated by the whole outer layer structure.

2. The flexible tensile fireproof cable according to claim 1, wherein the shielding layer (4) is a wave-proof sheath woven by copper-clad aluminum wires.

3. A flexible tensile fireproof cable according to claim 1, wherein the insulating layer (5) is silicone rubber.

4. A flexible tensile fireproof cable according to claim 1, wherein the woven layer (6) is a glass fiber yarn.

5. A flexible tensile fireproof cable according to claim 1, wherein the first filling layer (9) is a halogen-free low-smoke high-flame-retardant glass fiber rope.

6. A flexible tensile fireproof cable according to claim 1, wherein the fireproof layer (13) is a fluorine mica tape fireproof layer.

7. A flexible tensile fireproof cable according to claim 1, wherein the corrosion protection layer (12) is made of polyetheretherketone.

8. A flexible tensile fireproof cable according to claim 1, wherein the armouring layer (14) is thin steel wire.

9. A flexible tensile fireproof cable according to claim 1, wherein the outer sheath (15) is a low smoke zero halogen flame retardant polyolefin.

10. A flexible tensile fireproof cable according to claim 1, wherein the high temperature resistant coating (16) is made of phosphate lead powder inorganic paint by uniformly coating.