CN215600113U

CN215600113U - Flexible mineral insulation fireproof cable with metal aluminum alloy sheath

Info

Publication number: CN215600113U
Application number: CN202121984315.6U
Authority: CN
Inventors: 孙国刚; 石彦良
Original assignee: Liaoning Jiayi Cable Co ltd
Current assignee: Liaoning Jiayi Cable Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-01-21
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a flexible mineral insulation fireproof cable with a metal aluminum alloy sheath, which comprises a copper conductive wire core, wherein a mineral insulation layer wraps the outer side of the copper conductive wire core, a fireproof oxygen-isolating layer wraps the outer side of the mineral insulation layer, and a halogen-free flame-retardant belting layer wraps the outer side of the fireproof oxygen-isolating layer. According to the utility model, the inorganic mineral insulating tape adopted in the mineral insulating layer does not generate any harmful gas during combustion, is smokeless and nontoxic, and has long service life, the inorganic insulating material has high temperature resistance and is not easy to age, and the inorganic insulating material has the advantage of longer continuous length by being continuously wrapped in the manufacturing process, the length of the cable can meet the requirement of power supply length no matter a single-core cable or a multi-core cable, each continuous length can reach more than 1000m, meanwhile, the cable has a large section, the section of the single-core cable can reach 630mm, the section of the multi-core cable can reach 70mm, the flexibility is good, and the problem that the common cable in the market generally has poor using effect is solved.

Description

Flexible mineral insulation fireproof cable with metal aluminum alloy sheath

Technical Field

The utility model relates to the technical field of cables, in particular to a metal aluminum alloy sheath flexible mineral insulation fireproof cable.

Background

The cable is an electric energy or signal transmission device, it is made of one or more insulated conductors and outer insulating protective layer, the wire or similar rope cable that twisted several or several groups of wires (at least two of each group) that will transmit electric power or information from one place to another place, each group of wires is insulated each other, and often twist around a center, the whole outside is wrapped with the high insulating coating, the cable has the characteristic of internal current, the external insulation, the common cable in the market has the phenomenon that the result of use is relatively poor generally, cause the cable to have certain potential safety hazard and produce the length to be limited in the use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a metal aluminum alloy sheath flexible mineral insulation fireproof cable which has the advantage of good use effect and solves the problem that common cables in the market generally have poor use effect.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a flexible mineral insulation fireproof cable of metal aluminum alloy sheath, includes copper conductor core, the outside parcel of copper conductor core has the mineral insulation layer, the outside parcel of mineral insulation layer has the fire prevention to separate the oxygen layer.

Preferably, the outer side of the fireproof oxygen-insulating layer is wrapped with a halogen-free flame-retardant wrapping tape layer, and the outer side of the halogen-free flame-retardant wrapping tape layer is wrapped with an aluminum alloy sleeve protective layer.

Preferably, the outer side of the aluminum alloy sleeve protective layer is wrapped with a halogen-free low-smoke flame-retardant outer sheath, and the cross section of the copper conductive wire core is circular.

Preferably, the cross-sectional shape of the mineral insulating layer is circular ring, and the halogen-free flame-retardant filling rope is filled in the inner cavity which is positioned outside the mineral insulating layer and on the fireproof oxygen-insulating layer.

Preferably, the aluminum alloy sleeve protective layer is made of an aluminum alloy belt with high strength and strong creep resistance by a longitudinal argon arc welding continuous welding embossing process.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the inorganic mineral insulating tape adopted in the mineral insulating layer does not generate any harmful gas during combustion, is smokeless and nontoxic, and has long service life, the inorganic insulating material has high temperature resistance and is not easy to age, and the inorganic insulating material has the advantage of longer continuous length by being continuously wrapped in the manufacturing process, the length of the cable can meet the requirement of power supply length no matter a single-core cable or a multi-core cable, each continuous length can reach more than 1000m, meanwhile, the cable has a large section, the section of the single-core cable can reach 630mm, the section of the multi-core cable can reach 70mm, the flexibility is good, and the problem that the common cable in the market generally has poor using effect is solved.

2. According to the utility model, the high-strength aluminum alloy belt with stronger creep resistance is adopted in the protective layer of the aluminum alloy sleeve, and the longitudinal argon arc welding continuous welding embossing process is used, so that the protective effect can be achieved, the flexibility of the cable during installation can be ensured, the jelly formed by mixing magnesium oxide powder and building emulsion is adopted in the fireproof oxygen isolation layer, the jelly is uniformly extruded and wrapped around the metal sleeve through the double-screw grouting machine, then the jelly is tightly bound by the fireproof wrapping belt, the effect of isolating the attenuation heat degree of oxygen is fully achieved, the temperature of the inner layer is far lower than the melting temperature of the aluminum alloy sleeve, the integrity of the metal aluminum alloy sleeve is ensured, and the environment-friendly halogen-free low-smoke flame-retardant material is adopted in the halogen-free low-smoke flame-retardant outer sleeve for extrusion molding, so that the metal sleeve can be protected to adapt to various corrosive places, and meanwhile, the environment, underground water and other resources are not affected at all.

Drawings

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

In the figure: 1. a copper conductive core; 2. a mineral insulation layer; 3. a halogen-free flame-retardant filler rope; 4. a fireproof oxygen-insulating layer; 5. a halogen-free flame retardant belting layer; 6. an aluminum alloy sleeve protective layer; 7. there is not steamed low fire-retardant oversheath of cigarette.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1, a flexible mineral-insulated fireproof cable with a metal aluminum alloy sheath comprises a copper conductive wire core 1, a mineral insulating layer 2 is wrapped on the outer side of the copper conductive wire core 1, the cross section of the mineral insulating layer 2 is in a circular ring shape, a halogen-free flame-retardant filling rope 3 is filled in the inner cavity of the mineral insulating layer 2, a fireproof oxygen-barrier layer 4 is wrapped on the outer side of the mineral insulating layer 2, a halogen-free flame-retardant belting layer 5 is wrapped on the outer side of the fireproof oxygen-barrier layer 4, an aluminum alloy sheath protective layer 6 is wrapped on the outer side of the halogen-free flame-retardant belting layer 5, an aluminum alloy strip with high strength and high creep resistance is adopted in the aluminum alloy sheath protective layer 6, a longitudinal argon arc welding continuous welding embossing process is used, the flexible mineral-insulated fireproof cable has a protective effect and can ensure the flexibility of the cable during installation, and the aluminum alloy sheath protective layer 6 adopts the aluminum alloy strip with high strength and high creep resistance, the aluminum alloy cable is manufactured by a longitudinal argon arc welding continuous welding embossing process, the outer side of the protective layer 6 of the aluminum alloy sleeve is wrapped by the halogen-free low-smoke flame-retardant outer sheath 7, the halogen-free low-smoke flame-retardant outer sheath 7 is extruded and molded by environment-friendly halogen-free low-smoke flame-retardant material, the metal sheath can be protected from being suitable for various corrosive places, the environment, underground water and other resources are not affected at the same time, the cross section of the copper conductive wire core 1 is circular, the inorganic mineral insulating tape adopted in the mineral insulating layer 2 does not generate any harmful gas during combustion, is smoke-free and non-toxic, has long service life, is resistant to temperature and difficult to age, and has the advantage of long continuous length by being continuously wrapped in the manufacturing process, no matter whether a single core or a multi-core cable, the length of the cable can meet the requirement of power supply length, and each continuous length can reach more than 1000m, meanwhile, the cable is large in section, the section of a single-core cable can reach 630mm, the section of a multi-core cable can reach 70mm, the flexibility is good, and the problem that the common cable in the market is poor in using effect is solved.

The standard parts used in this document are commercially available, all the components in this document are customized according to the description of the specification and the drawings, and the connection relationship and specific structure between the layers in this document are all performed by the prior art, such as by mechanical methods, by adhesives, by various welding methods (such as thermal welding, ultrasonic welding, flux, welding, and fusion welding), and no specific description is made here.

When in use, the inorganic mineral insulating tape adopted in the mineral insulating layer 2 does not generate any harmful gas during combustion, is smokeless and nontoxic, has long service life, is high in temperature resistance of the inorganic insulating material and is not easy to age, has the advantage of longer continuous length by being continuously wrapped in the manufacturing process, can meet the requirement of power supply length no matter a single-core cable or a multi-core cable, has the length capable of meeting the requirement of power supply length, each continuous length can reach more than 1000m, meanwhile, the cable has a large section, the section of the single-core cable can reach 630mm, the section of the multi-core cable can reach 70mm, has good flexibility, adopts an aluminum alloy tape with high strength and strong creep resistance in the aluminum alloy sheath protective layer 6, adopts a longitudinal argon arc welding continuous welding line rolling process, can play a protective role, can also ensure the flexibility of the cable during installation, adopts a jelly formed by mixing magnesium oxide powder and building emulsion in the fireproof oxygen isolation layer 4, through the even crowded package of twin-screw grouter around the metal covering, then tie up with fire-resistant band, fully play the effect of isolated oxygen decay heat degree, it is that the inlayer temperature is far less than the melting temperature of aluminum alloy cover, the integrality of metal aluminum alloy cover has been guaranteed, adopt the crowded package shaping of the steamed low cigarette fire-retardant material of the nothing of environmental protection in the fire-retardant oversheath 7 of steamed low cigarette, can protect the place that metal sheathing can adapt to various corrosivity, also do not have any influence to resources such as environment and groundwater simultaneously.

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

Claims

1. The utility model provides a flexible mineral insulation fireproof cable of metal aluminum alloy sheath, includes copper conductor core (1), its characterized in that: the outside parcel of copper conductor core (1) has mineral insulating layer (2), the outside parcel of mineral insulating layer (2) has fire prevention oxygen barrier (4).

2. The metal aluminum alloy sheathed flexible mineral insulated fireproof cable according to claim 1, wherein: the outer side of the fireproof oxygen-isolating layer (4) is wrapped with a halogen-free flame-retardant wrapping tape layer (5), and the outer side of the halogen-free flame-retardant wrapping tape layer (5) is wrapped with an aluminum alloy sleeve protective layer (6).

3. The metal aluminum alloy sheathed flexible mineral insulated fireproof cable of claim 2, wherein: the outer side of the aluminum alloy sleeve protective layer (6) is wrapped with a halogen-free low-smoke flame-retardant outer sheath (7), and the cross section of the copper conductive wire core (1) is circular.

4. The metal aluminum alloy sheathed flexible mineral insulated fireproof cable according to claim 1, wherein: the cross-sectional shape of the mineral insulating layer (2) is a circular ring, and the halogen-free flame-retardant filling rope (3) is filled in the inner cavity of the outer side of the mineral insulating layer (2) and the inner cavity of the fireproof oxygen-insulating layer (4).

5. The metal aluminum alloy sheathed flexible mineral insulated fireproof cable of claim 2, wherein: the aluminum alloy sleeve protective layer (6) is made of an aluminum alloy belt with high strength and strong creep resistance by a longitudinal argon arc welding continuous welding embossing process.