CN209374132U - A kind of fireproof cable - Google Patents

Abstract

The utility model discloses a kind of fireproof cables; including external protection; outer fireprotection layer is provided on the inner wall of the external protection; anti-corrosion layer is provided on the inner wall of the outer fireprotection layer; the first filled layer is provided on the inner wall of the anti-corrosion layer; inner protective layer is provided on the inner wall of first filled layer, distances are surrounded with three wearing layers on the inner wall of the inner protective layer etc..The utility model passes through the mutual cooperation of external protection, outer fireprotection layer, anti-corrosion layer, the first filled layer, inner protective layer, wearing layer, interior fireprotection layer, insulating layer, the second filled layer and cable core; realize the good purpose of flameproof effect; solve the problems, such as that common cable fire-proof effect is poor; in the case of fire; the phenomenon that avoiding the occurrence of high temperature damage cable; improve the service life of cable; to avoid cable from generating a large amount of poison gas and flue dust by high-temp combustion; it reduces and people's body bring is endangered, be conducive to extensive universal and promote.

Description

A kind of fireproof cable

Technical field

The utility model relates to field of cable technology, specially a kind of fireproof cable.

Background technique

Cable defines one and is made of the conductor and external insulating protective layer of one or more mutually insulated, by electric power or information Be transferred to the conducting wire at another place from one, wire and cable to transmit electric energy, information and the wire product for realizing electromagnetic energy conversion, The wire and cable of broad sense is also referred to simply as cable, and the cable of narrow sense refers to insulated cable, and the wire and cable product overwhelming majority is section Identical, the in long strip product of shape, this is because used as route or coil is constituted in system or equipment Feature determined that it is usually the similar rope that by several or several groups of conducting wires (every group at least two) are twisted that cable, which defines two, The cable of rope, mutually insulated between every group of conducting wire, and be often twisted into around a center, entire outside is surrounded by covering for high-insulation Cap rock, with Chinese society rapid development of economy, the important job facilities such as subway, tunnel, power plant, nuclear power station and large size are super The place of the densely populated places such as city, conference and exhibition center is more and more, and cable, which once catches fire, is easy to cause security risk, common cable Flameproof effect is poor, and when fire occurs, high temperature is easy to cause cable bad, increases risk, reduces the service life of cable, cable A large amount of toxic gas and flue dust can be also generated in combustion, and great injury will cause to the body of people, be unfavorable for Extensive popularization and promotion.

Utility model content

The purpose of this utility model is to provide a kind of fireproof cables, have the good advantage of flameproof effect, solve common Cable fire-proof effect difference problem.

To achieve the above object, the utility model provides the following technical solutions: a kind of fireproof cable, including external protection, It is provided with outer fireprotection layer on the inner wall of the external protection, anti-corrosion layer is provided on the inner wall of the outer fireprotection layer, it is described resistance to It is provided with the first filled layer on the inner wall of corrosion layer, inner protective layer, the interior guarantor are provided on the inner wall of first filled layer Distances are surrounded with three wearing layers on the inner wall of sheath etc., are provided on the inner wall of the inner protective layer and mutually fit with wearing layer The partition matched is provided with interior fireprotection layer on the inner wall of the wearing layer, is provided with insulating layer on the inner wall of the interior fireprotection layer, institute It states and is provided with the second filled layer on the inner wall of insulating layer, the midpoint of the second filled layer inner wall is provided with cable core.

Preferably, the outer fireprotection layer and interior fireprotection layer are made of polyvinyl chloride.

Preferably, the anti-corrosion layer is made of polytetrafluoroethylene (PTFE).

Preferably, first filled layer and the second filled layer are made up of polypropylene.

Preferably, the wearing layer is made of polyurethane.

Preferably, the insulating layer is made of crosslinked polyethylene.

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

1, the utility model passes through external protection, outer fireprotection layer, anti-corrosion layer, the first filled layer, inner protective layer, wear-resisting The mutual cooperation of layer, interior fireprotection layer, insulating layer, the second filled layer and cable core, realizes the good purpose of flameproof effect, solves The problem of common cable fire-proof effect difference avoids the occurrence of the phenomenon that high temperature damages cable, improves cable in the case of fire Service life reduce so that cable be avoided to generate a large amount of poison gas and flue dust by high-temp combustion to people's body bring Harm is conducive to extensive universal and promotes.

2, the utility model separates each wearing layer by setting partition, avoids mutually viscous between wearing layer Knot.

Detailed description of the invention

Fig. 1 is the cross-sectional view of the structure of the utility model front view；

Fig. 2 is the partial enlarged view of A-A in the utility model Fig. 1.

In figure: 1 external protection, 2 outer fireprotection layers, 3 anti-corrosion layers, 4 first filled layers, 5 inner protective layers, 6 wearing layers, 7 every Piece, fireprotection layer, 9 insulating layers, 10 second filled layers, 11 cables core in 8.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

A kind of fireproof cable referring to FIG. 1-2, including external protection 1 are provided with outer fire prevention on the inner wall of external protection 1 Layer 2 is provided with anti-corrosion layer 3 on the inner wall of outer fireprotection layer 2, and anti-corrosion layer 3 is made of polytetrafluoroethylene (PTFE), and polytetrafluoroethylene (PTFE) has Characteristic resistant to high temperature, it is low temperature resistant to have good machinery tough using operating temperature up to 250 DEG C, that is, -196 DEG C are dropped temperature to, Can also keep 5% elongation, it is corrosion-resistant to most of chemicals and solvent, show inertia, can strong alkali-acid resistance, water and Various organic solvents are provided with the first filled layer 4 on the inner wall of anti-corrosion layer 3, are provided with interior guarantor on the inner wall of the first filled layer 4 Sheath 5, external protection 1 and inner protective layer 5 are made of PE plastic grain, and PE plastic grain is formed by the vinyl polymerization refined , have outstanding insulation resistance, dieletric strength, wearability, heat aging property, cryogenic property, chemical-resistant stability and The performances such as water resistance, distances are surrounded with three wearing layers 6 on the inner wall of inner protective layer 5 etc., and wearing layer 6 is by polyurethane system At, polyurethane mechanical strength with higher and oxidation stability, flexibility with higher and resilience, with excellent resistance to Oiliness, solvent resistance, water resistance and fire resistance are provided with partition 7 compatible with wearing layer 6 on the inner wall of inner protective layer 5, lead to Setting partition 7 is crossed, each wearing layer 6 is separated, avoids mutually bonding between wearing layer 6, partition 7 is fabric by nonwoven At, non-woven fabrics have it is moisture-proof, ventilative, flexible, light, not combustion-supporting, be easy to decompose, it is nontoxic it is nonirritant, rich in color, price is low The features such as honest and clean, recyclable, mostly using polypropylene granules is raw material, is batched continuously through high-temperature fusion, spinneret, paving guiding principle, hot pressing One-step production forms, and interior fireprotection layer 8 is provided on the inner wall of wearing layer 6, outer fireprotection layer 2 and interior fireprotection layer 8 are by polychlorostyrene second Alkene is made, the maximum feature of polyvinyl chloride be it is fire-retardant, insulating layer 9 is provided on the inner wall of interior fireprotection layer 8, insulating layer 9 is by being crosslinked Polyethylene is made, and crosslinked polyethylene has heat resistance, and the XLPE of netted stereochemical structure has very excellent heat resistance, 200 DEG C or less will not decompose and be carbonized, and long-term operating temperature is up to 90 DEG C, and insulation performance, it is original good that XLPE maintains PE Insulation characterisitic, and insulation resistance further increases, dielectric loss angle tangent very little, and is affected by temperature less, chemically-resistant Characteristic, XLPE have stronger acid and alkali-resistance and oil resistivity, and combustion product is mainly water and carbon dioxide, to the harm of environment compared with It is small, meet the requirement of modern fire safety, the second filled layer 10, the first filled layer 4 and second are provided on the inner wall of insulating layer 9 Filled layer 10 is made up of polypropylene, polypropylene have it is nontoxic, tasteless, density is small, and intensity, rigidity, hardness heat resistance are superior to Low pressure polyethylene can be used at 100 DEG C or so, had good dielectric properties and high-frequency insulation and do not influenced by humidity, the The midpoint of two filled layers, 10 inner wall is provided with cable core 11, is filled out by external protection 1, outer fireprotection layer 2, anti-corrosion layer 3, first The mutual cooperation of layer 4, inner protective layer 5, wearing layer 6, interior fireprotection layer 8, insulating layer 9, the second filled layer 10 and cable core 11 is filled, it is real The good purpose of flameproof effect is showed, has solved the problems, such as that common cable fire-proof effect is poor, in the case of fire, avoid the occurrence of height Temperature damage cable the phenomenon that, improve the service life of cable, thus avoid cable by high-temp combustion generate a large amount of poison gas and Flue dust is reduced and is endangered people's body bring, is conducive to extensive universal and is promoted.

In summary: the fireproof cable, by external protection 1, outer fireprotection layer 2, anti-corrosion layer 3, the first filled layer 4, interior The mutual cooperation of protective layer 5, wearing layer 6, interior fireprotection layer 8, insulating layer 9, the second filled layer 10 and cable core 11, solves common Cable fire-proof effect difference problem.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of fireproof cable, including external protection (1), it is characterised in that: be provided on the inner wall of the external protection (1) outer Fireprotection layer (2) is provided with anti-corrosion layer (3) on the inner wall of the outer fireprotection layer (2), sets on the inner wall of the anti-corrosion layer (3) It is equipped with the first filled layer (4), is provided with inner protective layer (5) on the inner wall of first filled layer (4), the inner protective layer (5) Inner wall on etc. distances be surrounded with three wearing layers (6), be provided on the inner wall of the inner protective layer (5) and wearing layer (6) compatible partition (7) is provided with interior fireprotection layer (8) on the inner wall of the wearing layer (6), the interior fireprotection layer (8) it is interior It is provided with insulating layer (9), is provided with the second filled layer (10) on the inner wall of the insulating layer (9), second filled layer on wall (10) midpoint of inner wall is provided with cable core (11).

2. a kind of fireproof cable according to claim 1, it is characterised in that: the outer fireprotection layer (2) and interior fireprotection layer (8) It is made of polyvinyl chloride.

3. a kind of fireproof cable according to claim 1, it is characterised in that: the anti-corrosion layer (3) is by polytetrafluoroethylene (PTFE) It is made.

4. a kind of fireproof cable according to claim 1, it is characterised in that: first filled layer (4) and the second filling Layer (10) is made up of polypropylene.

5. a kind of fireproof cable according to claim 1, it is characterised in that: the wearing layer (6) is made of polyurethane.

6. a kind of fireproof cable according to claim 1, it is characterised in that: the insulating layer (9) is by crosslinked polyethylene system At.