CN209591613U

CN209591613U - A kind of wiring mineral insulating flexible fireproof cable

Info

Publication number: CN209591613U
Application number: CN201920677069.6U
Authority: CN
Inventors: 王迪; 叶明竹; 周友芝; 水利飞
Original assignee: Anhui Huayu Cable Group Co Ltd
Current assignee: Anhui Huayu Cable Group Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2019-11-05
Anticipated expiration: 2029-05-13

Abstract

The utility model discloses a kind of wiring mineral insulating flexible fireproof cables, including insulated wire cores, conductor, refuge floor, fire clay and insulating layer, the insulated wire cores are made of conductor, flame retardant coating and insulating layer, the outer congruence of the conductor is surrounded with two layers of flame retardant coating, the outside of the flame retardant coating is extruded with a layer insulating, the external series gap of the insulated wire cores is surrounded with the first wrapping layer, it is extruded with refuge floor outside first wrapping layer, fills fire clay between the insulating layer and the first wrapping layer；The utility model is filled between insulated wire cores by using minerals fire clay as refuge floor; it can be in cable fire; fire clay is enabled to be thermally decomposed; absorb a large amount of heat; and the crystallization water is discharged, one layer of coating is formed in insulating surface, has completely cut off the entrance of oxygen in air; so that inner conductor and insulation is received protection, carrys out interim evacuating personnel and salvage operation for urgent fire and striven for more quality time.

Description

A kind of wiring mineral insulating flexible fireproof cable

Technical field

The utility model belongs to cable machinery technical field, is related to a kind of fireproof cable, and mineral are used in specifically a kind of wiring Insulation flexible fireproof cable.

Background technique

Through fireproof cable disclosed in retrieval documents CN203276931U, cooling and heat dissipation can not be played the role of, while There are great circuit safety hidden danger, cable junctions are thousands of in heavy construction, and the connector contacts of cable loosen, oxidation all can Resistance is caused to increase, temperature increases, and in turn results in insulation ag(e)ing, causes the generation of fire.Therefore the general lighting of heavy construction, Emergency lighting, fire alarm line powering need safer fireproof cable, could reduce hidden danger, Emergency time be life and Valuable time is striven in the rescue of property；

But for existing fireproof cable when in use there is also certain drawbacks, traditional fireproof cable uses substance thermal insulation knot Structure, so that fireproof cable only has temperature insulating without cooling structure, to reduce fireproof cable to a certain extent Flameproof effect enables fireproof cable be in heated combustion state, accelerates anti-so that fireproof cable can not absorb the heat on its surface The temperature of thermoelectricity cable rises, and flameproof effect is poor, brings some inconvenience to user, in order to solve drawbacks described above, now provides A solution.

Utility model content

The purpose of this utility model is to provide a kind of wiring mineral insulating flexible fireproof cables.

The purpose of this utility model can be achieved through the following technical solutions:

A kind of wiring mineral insulating flexible fireproof cable, including insulated wire cores, conductor, refuge floor, fire clay and insulation Layer, the insulated wire cores are made of conductor, flame retardant coating and insulating layer, and the outer congruence of the conductor is surrounded with two layers of fire resisting Layer, the outside of the flame retardant coating are extruded with a layer insulating, and the external series gap of the insulated wire cores is surrounded with the first wrapping layer, institute It is extruded with refuge floor outside the first wrapping layer stated, fire clay is filled between the insulating layer and the first wrapping layer, it is described The outer congruence of refuge floor extrudes matcoveredn, the flame retardant coating around the second wrapping layer, the outside of second wrapping layer is wrapped Cross section be ring structure.

Further, the flame retardant coating is made by the two-sided synthetic mica of minerals is wrapped, the wrapped number of plies of the flame retardant coating It is two layers.

Further, the insulating layer is made of material of the material of crosslinked polyethylene, and the insulated wire cores pass through twisted Cable core is made, first wrapping layer is made of nylon tape group, and second wrapping layer is made of halogen-free flameproof band.

Further, thermal insulation band, the material of the protective layer are fixedly installed between the protective layer and the second wrapping layer For halogen-free anti-flaming polyolefin.

Further, the oxygen index (OI) of second wrapping layer is more than or equal to 32, between second wrapping layer and refuge floor Fixing sleeve is connected to screened film.

Further, the outer circle of the insulating layer and the inner circle of the first wrapping layer are tangent, and the refuge floor is around first Between wrapping layer and the second wrapping layer.

Further, armouring sheath is fixedly installed on the inside of the protective layer, the refuge floor is extruded by mica to be made.

The utility model has the beneficial effects that the utility model is filled in by setting fire clay using minerals fire clay Between insulated wire cores be used as refuge floor, while the raw material of fire clay have the characteristics that it is nontoxic, smokeless, be halogen-free so that fire resisting Mud will not generate toxic and harmful gas in combustion, and when cable fire, fire clay is thermally decomposed, and can absorb protective layer institute The amount of heat touched to discharge the crystallization water between insulated wire cores and the first wrapping layer, and is formed in surface of insulating layer One layer of coating has completely cut off the entrance of oxygen in air, while having played certain cooling effect to conductor, make inner conductor and absolutely Edge layer receives protection, and cable is avoided Ignition phenomenon occur, carrys out interim evacuating personnel and salvage operation for urgent fire and strives for More quality time, using the two-sided synthetic mica tape of minerals as flame retardant coating, double-layer structure can effectively increase fire resisting The fire resistance of layer extends the duration of fire resistance of flame retardant coating in a fire, while the Duplication of flame retardant coating and material have increase insulation The effect of resistance better meets fire resisting fire protecting performance, while the cable is more easy for installation than common copper sheath fireproof cable, is not necessarily to Special joint, bending radius is small, produces unlimited length, reduces cable erection joint, using safer in building.

Detailed description of the invention

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below with reference to the accompanying drawings.

Fig. 1 is the utility model structure diagram；

Fig. 2 is the overall structure figure of the utility model insulated wire cores.

In figure: 1, conductor；2, flame retardant coating；3, insulating layer；4, fire clay；5, the first wrapping layer；6, refuge floor；7, second around Covering；8, protective layer；9, insulated wire cores.

Specific embodiment

As shown in Figs. 1-2, a kind of wiring mineral insulating flexible fireproof cable, including insulated wire cores 9, conductor 1, refuge floor 6, fire clay 4 and insulating layer 3, insulated wire cores 9 are made of conductor 1, flame retardant coating 2 and insulating layer 3, conductor 1 outer congruence around Be surrounded by two layers of flame retardant coating 2, the outside of flame retardant coating 2 be extruded with a layer insulating 3, the external series gap of insulated wire cores 9 is surrounded with first Wrapping layer 5, the first wrapping layer 5 outside be extruded with refuge floor 6, insulating layer 3 and the first wrapping layer 5 between fill fire clay 4, Refuge floor 6 outer congruence around the second wrapping layer 7 of wrapping, the outside of the second wrapping layer 7 extrudes matcoveredn 8, flame retardant coating 2 Cross section is ring structure.

Flame retardant coating 2 is made by the two-sided synthetic mica of minerals is wrapped, and the wrapped number of plies of flame retardant coating 2 is that two layers of flame retardant coating 2 is right Cable core plays the role of thermal insulation protection.

Insulating layer 3 is made of material of the material of crosslinked polyethylene, insulated wire cores 9 by being made by twisting cable core, first around Covering 5 is made of nylon tape group, and the second wrapping layer 7 is made of halogen-free flameproof band, and the first wrapping layer 5 can effectively promote cable Thermal insulation protecting effect.

Thermal insulation band is fixedly installed between protective layer 8 and the second wrapping layer 7, the material of protective layer 8 is halogen-free flameproof polyene Hydrocarbon, halogen-free anti-flaming polyolefin have certain fire retardation.

The oxygen index (OI) of second wrapping layer 7 is more than or equal to 32, and fixing sleeve is connected to shielding between the second wrapping layer 7 and refuge floor 6 Film, screened film play a certain protective role conductor 1.

The outer circle of insulating layer 3 and the inner circle of the first wrapping layer 5 are tangent, refuge floor 6 around the first wrapping layer 5 and second around Between covering 7, insulating layer 3 plays the role of insulation protection, and cable is avoided short circuit phenomenon occur.

The inside of protective layer 8 is fixedly installed with armouring sheath, and refuge floor 6 is extruded by mica to be made.

A kind of wiring mineral insulating flexible fireproof cable, in use, flame retardant coating 2 can effectively promote the fire prevention The thermal insulation effect of cable has increase insulated electro as flame retardant coating 2, Duplication and material using the two-sided synthetic mica tape of minerals Resistance, meet the effect of fire resisting fire protecting performance, by be arranged fire clay 4, using minerals fire clay 4 be filled in insulated wire cores 9 it Between be used as refuge floor 6, while the raw material of fire clay 4 have the characteristics that it is nontoxic, smokeless, be halogen-free so that fire clay 4 is burning Toxic and harmful gas will not be generated in the process, and when cable fire, fire clay 4 is thermally decomposed, and absorbable protective layer 8 is touched Amount of heat, to discharge the crystallization water between insulated wire cores 9 and the first wrapping layer 5, and form one layer on 3 surface of insulating layer Coating has completely cut off the entrance of oxygen in air, while having played certain cooling effect to conductor 1, makes inner conductor 1 and insulation Layer 3 receives protection, and cable is avoided Ignition phenomenon occur, carrys out interim evacuating personnel and salvage operation for urgent fire and has striven for more More quality time, using the two-sided synthetic mica tape of minerals as flame retardant coating 2, double-layer structure can effectively increase flame retardant coating 2 fire resistance extends the duration of fire resistance of flame retardant coating 2 in a fire, while the Duplication of flame retardant coating 2 and material have increase insulation The effect of resistance better meets fire resisting fire protecting performance, while the cable is more easy for installation than common copper sheath fireproof cable, is not necessarily to Special joint, bending radius is small, produces unlimited length, reduces cable erection joint, using safer in building, the Two wrapping layers 7 can be outer to the progress insulation blocking operation of conductor 1 from the first wrapping layer 5, promotes the safety of the cable.

Above content is only to the utility model structure example and explanation, the technology people of affiliated the art Member makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from reality With novel structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.

Claims

1. a kind of wiring mineral insulating flexible fireproof cable, which is characterized in that including insulated wire cores (9), conductor (1), fire insulation Layer (6), fire clay (4) and insulating layer (3), the insulated wire cores (9) are made of conductor (1), flame retardant coating (2) and insulating layer (3), The outer congruence of the conductor (1) is surrounded with two layers of flame retardant coating (2), and the outside of the flame retardant coating (2) is extruded with one layer absolutely The external series gap of edge layer (3), the insulated wire cores (9) is surrounded with the first wrapping layer (5), is squeezed outside first wrapping layer (5) It is surrounded by refuge floor (6), fills fire clay (4) between the insulating layer (3) and the first wrapping layer (5), the refuge floor (6) Outer congruence around wrapping the second wrapping layer (7), the outside of second wrapping layer (7) extrudes matcoveredn (8), the fire resisting The cross section of layer (2) is ring structure.

2. a kind of wiring mineral insulating flexible fireproof cable according to claim 1, which is characterized in that the flame retardant coating (2) it is made by the two-sided synthetic mica of minerals is wrapped, the wrapped number of plies of the flame retardant coating (2) is two layers.

3. a kind of wiring mineral insulating flexible fireproof cable according to claim 1, which is characterized in that the insulating layer (3) it is made of material of the material of crosslinked polyethylene, for the insulated wire cores (9) by being made by twisting cable core, described first is wrapped Layer (5) is made of nylon tape group, and second wrapping layer (7) is made of halogen-free flameproof band.

4. a kind of wiring mineral insulating flexible fireproof cable according to claim 1, which is characterized in that the protective layer (8) thermal insulation band is fixedly installed between the second wrapping layer (7), the material of the protective layer (8) is halogen-free anti-flaming polyolefin.

5. it is according to claim 1 it is a kind of wiring use mineral insulating flexible fireproof cable, which is characterized in that described second around The oxygen index (OI) of covering (7) is more than or equal to 32, and fixing sleeve is connected to screened film between second wrapping layer (7) and refuge floor (6).

6. a kind of wiring mineral insulating flexible fireproof cable according to claim 1, which is characterized in that the insulating layer (3) outer circle and the inner circle of the first wrapping layer (5) are tangent, and the refuge floor (6) is wrapped around the first wrapping layer (5) and second Between layer (7).

7. a kind of wiring mineral insulating flexible fireproof cable according to claim 1, which is characterized in that the protective layer (8) armouring sheath is fixedly installed on the inside of, the refuge floor (6) is extruded by mica to be made.