CN217405125U

CN217405125U - Flame-retardant fire-resistant low-smoke halogen-free environment-friendly cable for large buildings and engineering

Info

Publication number: CN217405125U
Application number: CN202221019742.5U
Authority: CN
Inventors: 杨有粮; 李晖
Original assignee: Kunming Kunming Railway Cable Co ltd
Current assignee: Kunming Kunming Railway Cable Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-09-09
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a large building and engineering are with fire-retardant fire-resistant low smoke and zero halogen environmental protection cable relates to environmental protection cable technical field. Including the insulating layer, the inside fixedly connected with of insulating layer separates the oxygen layer, separates the inside central fixedly connected with of oxygen layer and mother's sinle silk, separates that oxygen in situ portion is located the generating line core and is provided with the sub-sinle silk of multiunit all around respectively, the fire-retardant layer of insulating layer outer wall fixedly connected with, the outside fixedly connected with top layer on fire-retardant layer is provided with many winding fibers between insulating layer and the top layer, and winding fiber embedding is at top layer inner wall. The utility model is composed of an aluminum foil layer and an asbestos layer; the setting of the insulating layer of constituteing with aerogel felt layer and its outer wall through the fire-retardant layer that fire-retardant core, inorganic layer and fire protection coating and articulamentum are constituteed thereby lets the cable inside can not burn when the open flame to can the inside transmission of resistance high temperature case cable, thereby can make the cable can carry out longer work in the environment of high temperature open flame at will.

Description

Flame-retardant fire-resistant low-smoke halogen-free environment-friendly cable for large buildings and engineering

Technical Field

The utility model relates to an environmental protection cable technical field specifically is a large building and engineering are with fire-retardant fire-resistant low smoke and zero halogen environmental protection cable.

Background

The low-smoke halogen-free cable is a halogen substance which is an insulating layer material of the wire, does not release halogen-containing gas under the condition of combustion, has low smoke concentration, is suitable for places with rated voltage of 450/750V or below, has halogen-free, low-smoke and flame-retardant requirements and has high requirements on safety and environmental protection. Such as high-rise buildings, stations, subways, airports, hospitals, large libraries, and stadiums.

Most of the current low-smoke halogen-free cables can be broken quickly due to the lack of fireproof materials and the heat insulation property when facing open fire, so that the functions of the cables are lost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-scale building and engineering are with fire-retardant fire-resistant low smoke and zero halogen environmental protection cable to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a large building and engineering are with fire-retardant fire-resistant low smoke and zero halogen environmental protection cable, includes the insulating layer, the inside fixedly connected with of insulating layer separates the oxygen layer, separates the inside central fixedly connected with of oxygen layer and mother's sinle silk, it is provided with the sub-sinle silk of multiunit respectively all around to separate the inside generating line core that is located of oxygen layer, the fire-retardant layer of insulating layer outer wall fixedly connected with, the outside fixedly connected with top layer on fire-retardant layer.

Preferably, the insulating layer is the tubular structure, and the insulating layer has set gradually aerogel carpet veneer, asbestos layer and aluminium foil layer from inside to outside, it is fixed through bonding between aerogel carpet veneer, asbestos layer and the aluminium foil layer, aluminium foil layer outer wall is connected with fire-retardant layer, inside and the oxygen layer outer wall fixed connection that separates of aerogel carpet veneer.

Preferably, the flame-retardant layer is of a cylindrical structure, the connecting layer, the flame-retardant core, the inorganic layer and the fireproof coating are sequentially arranged from inside to outside, the outer wall of the fireproof coating is fixedly connected with the surface layer, the inner wall of the connecting layer is fixedly connected with the heat insulation layer, the connecting layer, the flame-retardant core and the inorganic layer are fixed through bonding, and the fireproof coating is coated on the outer wall of the inorganic layer.

Preferably, a plurality of winding fibers are arranged between the heat insulation layer and the surface layer, the winding fibers are of a spiral mechanism, and the winding fibers are embedded in the inner wall of the surface layer.

Preferably, at least two sub-line cores are arranged in each group, the outer wall of the sub-line core in the same group is wrapped with a line concentration sleeve, and the line concentration sleeve is embedded in the oxygen isolation layer.

Preferably, the sub-wire core is an aluminum cylindrical wire, the bus wire core is a copper cylindrical wire, and the diameter of the bus wire core is larger than that of the sub-wire core.

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

the flame-retardant fire-resistant low-smoke halogen-free environment-friendly cable for large buildings and engineering comprises an aluminum foil layer and an asbestos layer; the setting of the insulating layer of constituteing with aerogel felt layer and its outer wall through the fire-retardant layer that fire-retardant core, inorganic layer and fire protection coating and articulamentum are constituteed thereby lets the cable inside can not burn when the open flame to can the inside transmission of resistance high temperature case cable, thereby can make the cable can carry out longer work in the environment of high temperature open flame at will.

Meanwhile, the function of the cable is transmitted in a mode that a plurality of groups of sub-wire cores surround the main wire core, so that the cable has higher fault tolerance when being damaged, and the sub-wire core and the main wire core inside the cable can work independently.

Drawings

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

FIG. 2 is a schematic view of the structure of the thermal insulation layer of the present invention;

fig. 3 is a schematic view of the structure of the flame retardant layer of the present invention.

In the figure: 1. a thermal insulation layer; 101. an aluminum foil layer; 102. an asbestos layer; 103. an aerogel blanket; 2. a flame retardant layer; 201. a flame retardant core; 202. an inorganic layer; 203. a fire-retardant coating; 204. a connecting layer; 3. winding fibers; 4. a surface layer; 5. an oxygen barrier layer; 6. a wire concentration sleeve; 7. a sub-wire core; 8. a female wire core.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Further, it will be appreciated that the dimensions of the various elements shown in the figures are not drawn to scale, for ease of description, and that the thickness or width of some layers may be exaggerated relative to other layers, for example.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined or illustrated in one figure, it will not need to be further discussed or illustrated in detail in the description of the following figure.

Examples

In the work progress that carries out the heavy construction, consider the existence that the building catches fire the lamp extreme condition, for guaranteeing the work that wired information equipment can be normal in conflagration or high temperature environment, consequently used the utility model provides a pair of heavy construction and engineering are with fire-retardant fire-resistant low smoke and zero halogen environmental protection cable, the outside top layer 4 of this cable adopts environmental protection plastics to support, its inside fire-retardant layer 2 that is provided with, multiple protective structure such as insulating layer 1 and oxygen layer 5 that separates, guarantee during its carpenter to be used for the transmission work of signal or electric power that the sub-line core 7 or the female sinle silk 8 of information or electric power transmission can be normal, the inside wired fire-fighting equipment of building can normal use when guaranteeing the conflagration to can reduce the loss that the conflagration caused to a certain extent.

As shown in fig. 1, the utility model provides a technical solution: the utility model provides a large-scale building and engineering are with fire-retardant fire-resistant low smoke and zero halogen environmental protection cable, including insulating layer 1, the inside fixedly connected with in insulating layer 1 separates oxygen layer 5, separate the inside central fixedly connected with bus core 8 in oxygen layer 5, it is provided with multiunit child sinle silk 7 respectively all around to separate the inside bus core 8 that is located in oxygen layer 5, the fire-retardant layer 2 of 1 outer wall fixedly connected with in insulating layer, the outside fixedly connected with top layer 4 on fire-retardant layer 2, be provided with many winding fibers 3 between insulating layer 1 and the top layer 4, winding fiber 3 is heliciform mechanism, 3 imbeds at the 4 inner walls in top layer, every group child sinle silk 7 is provided with two at least, 7 outer wall parcels of sub-line core of the same group have line collection cover 6, line collection cover 6 imbeds inside separating oxygen layer 5, sub-line core 7 is aluminium system cylinder wire, bus core 8 is copper system cylinder wire, bus core 8 diameter is greater than sub-line core 7.

As shown in fig. 2, insulating layer 1 is the tubular structure, and insulating layer 1 has set gradually aerogel felt layer 103, asbestos layer 102 and aluminium foil layer 101 from inside to outside, and it is fixed through bonding between aerogel felt layer 103, asbestos layer 102 and the aluminium foil layer 101, and aluminium foil layer 101 outer wall is connected with fire-retardant layer 2, and aerogel felt layer 103 is inside and 5 outer wall fixed connection on oxygen layer.

It should be noted that the main body of the aerogel felt layer 103 is made of fireproof aerogel felt, the used asbestos layer 102 is made of heat-insulating asbestos, the asbestos has excellent heat-insulating effect, and the aluminum foil layer 101 for heat reflection can sufficiently prevent heat from intruding into the outer wall and transfer heat inside, so that the working time of the cable can be greatly prolonged.

As shown in fig. 3, the flame retardant layer 2 is a cylindrical flame retardant layer 2, and is sequentially provided with a connecting layer 204, a flame retardant core 201, an inorganic layer 202 and a fireproof coating 203 from inside to outside, the outer wall of the fireproof coating 203 is fixedly connected with the surface layer 4, the inner wall of the connecting layer 204 is fixedly connected with the heat insulation layer 1, the connecting layer 204, the flame retardant core 201 and the inorganic layer 202 are fixed by bonding, and the fireproof coating 203 is coated on the outer wall of the inorganic layer 202.

It should be noted that, the flame retardant core 201 in the flame retardant layer 2 is a glass fiber core, the inorganic layer 202 is made of calcium carbonate lamp inorganic salt or ceramic powder, the fireproof coating 203 can be used for preventing fire of the surface layer 4, the connecting layer 204 therein is used for connecting with internal components so that the cable does not burn inside when facing open fire, and the connecting layer can be used for resisting the internal transmission of the high temperature box cable, so that the cable can work for a long time in the environment of high temperature open fire.

It should be noted that, carry out the transmission of cable function through the mode that multiunit child sinle silk 7 surrounds mother sinle silk 8, thereby there is higher fault-tolerant rate when the cable suffers the damage, inside child sinle silk 7 and bus sinle silk 8 can both be independently worked, the function of child sinle silk 7 and mother sinle silk 8 can be changed according to the scene of using, mother sinle silk 8 carries out power transmission usually, child sinle silk 7 is usually as information transmission, also can carry out power transmission, child sinle silk 7 is provided with multiunit function unanimity, the purpose can guarantee the work continuation of cable at any time when a set of child sinle silk 7 damages.

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

Claims

1. The utility model provides a large-scale building and engineering are with fire-retardant fire-resistant low smoke and zero halogen environmental protection cable, includes insulating layer (1), its characterized in that: insulating layer (1) inside fixedly connected with separates oxygen layer (5), separates oxygen layer (5) inside central fixedly connected with female sinle silk (8), it is provided with sub-sinle silk of multiunit (7) respectively all around to separate oxygen layer (5) inside being located female sinle silk (8), insulating layer (1) outer wall fixedly connected with fire-retardant layer (2), outside fixedly connected with top layer (4) of fire-retardant layer (2).

2. The flame-retardant fire-resistant low-smoke halogen-free environment-friendly cable for large buildings and engineering according to claim 1, characterized in that: insulating layer (1) is the tubular structure, and insulating layer (1) has set gradually aerogel carpet veneer (103), asbestos layer (102) and aluminium foil layer (101) from inside to outside, it is fixed through bonding between aerogel carpet veneer (103), asbestos layer (102) and aluminium foil layer (101), and aluminium foil layer (101) outer wall is connected with fire-retardant layer (2), and aerogel carpet veneer (103) inside with separate oxygen layer (5) outer wall fixed connection.

3. The flame-retardant fire-resistant low-smoke halogen-free environment-friendly cable for large buildings and engineering according to claim 1, characterized in that: flame retardant coating (2) has set gradually articulamentum (204), fire-retardant core (201), inorganic layer (202) and fire prevention coating (203) from inside to outside for tubular structure flame retardant coating (2), fire prevention coating (203) outer wall and top layer (4) fixed connection, articulamentum (204) inner wall and insulating layer (1) fixed connection, articulamentum (204), fire-retardant core (201) and inorganic layer (202) are fixed through bonding, and fire prevention coating (203) coating is at inorganic layer (202) outer wall.

4. The flame-retardant fire-resistant low-smoke halogen-free environment-friendly cable for large buildings and engineering according to claim 1, characterized in that: a plurality of winding fibers (3) are arranged between the heat insulation layer (1) and the surface layer (4), the winding fibers (3) are spiral mechanisms, and the winding fibers (3) are embedded in the inner wall of the surface layer (4).

5. The flame-retardant fire-resistant low-smoke halogen-free environment-friendly cable for large buildings and engineering according to claim 1, which is characterized in that: every group sub-sinle silk (7) are provided with two at least, and sub-sinle silk (7) outer wall parcel with the group has line concentration cover (6), line concentration cover (6) embedding is inside isolating oxygen layer (5).

6. The flame-retardant fire-resistant low-smoke halogen-free environment-friendly cable for large buildings and engineering according to claim 1, characterized in that: the sub-wire core (7) is an aluminum cylindrical wire, the main wire core (8) is a copper cylindrical wire, and the diameter of the main wire core (8) is larger than that of the sub-wire core (7).