CN215577764U

CN215577764U - Flexible mineral insulation fireproof cable of nonrust steel bushing

Info

Publication number: CN215577764U
Application number: CN202121925910.2U
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: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-01-18
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a flexible mineral insulation fireproof cable with a stainless steel sleeve, which comprises a copper conductive wire core, wherein a mineral insulation layer is wrapped outside the copper conductive wire core, and a halogen-free flame-retardant filling rope is wrapped outside the mineral insulation layer. The utility model has the function of transmitting electric energy through the copper conductive wire core, can be a round solid core, can also be a multi-core round twisted together, is generally an annealed copper conductor, the mineral insulating layer adopts non-calcined gold mica tape, and is manufactured by adopting a multi-layer concentric overlapping wrapping mode, the stainless steel protective layer adopts high-strength corrosion-resistant stainless steel tape, and the longitudinal argon arc welding continuous welding embossing process is used, thereby not only having the protective function, but also ensuring the flexibility of the cable during installation, and the outer sheath outside the product is formed by extruding and wrapping an environment-friendly halogen-free low-smoke flame-retardant material, thereby not only protecting the metal sheath and being capable of adapting to various corrosive places, but also having no influence on the environment, underground water and other resources.

Description

Flexible mineral insulation fireproof cable of nonrust steel bushing

Technical Field

The utility model relates to the technical field of cables, in particular to a stainless steel sleeve flexible mineral insulation fireproof cable.

Background

The stainless steel sheath embossing inorganic insulated cable is a novel fireproof cable which is improved on the basis of a copper sleeve or aluminum sleeve mineral insulated cable, along with continuous popularization of the product, the excellent performance of the cable is more and more accepted by customers, the cable is widely applied to basic industry and civil construction, but the problem that a metal sleeve is softened when the cable is used at a high temperature state can occur, and the cable does not have high temperature resistance and corrosion resistance and is troublesome to install and lay.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flexible mineral insulation fireproof cable with a stainless steel sleeve, which has the advantages of high temperature resistance, corrosion resistance and convenience in installation and laying, solves the problems that a metal sleeve is softened when the cable is used at a high temperature state and the like, and does not have the problems of high temperature resistance and corrosion resistance.

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 stainless steel bushing, 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-retardant filling rope of halogen-free, the outside parcel of the fire-retardant filling rope of halogen-free has the fire-retardant layer band of halogen-free, the outside parcel of the fire-retardant layer band of halogen-free has the stainless steel inoxidizing coating, the outside parcel of stainless steel inoxidizing coating has the fire-retardant oversheath of halogen-free low cigarette.

Preferably, the copper conductive wire core is formed by multi-core stranding.

Preferably, the mineral insulating layer is made of non-calcined phlogopite tapes.

Preferably, the stainless steel protective layer is a high-strength corrosion-resistant stainless steel band, and a longitudinal argon arc welding continuous welding embossing process is adopted.

Preferably, the halogen-free low-smoke flame-retardant outer sheath is formed by extruding and wrapping a halogen-free low-smoke flame-retardant material.

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

1. the utility model has the function of transmitting electric energy through the copper conductive wire core, can be a round solid core, can also be a multi-core round twisted together, is generally an annealed copper conductor, the mineral insulating layer adopts non-calcined gold mica tape, and is manufactured by adopting a multi-layer concentric overlapping wrapping mode, the stainless steel protective layer adopts high-strength corrosion-resistant stainless steel tape, and the longitudinal argon arc welding continuous welding embossing process is used, thereby not only having the protective function, but also ensuring the flexibility of the cable during installation, and the outer sheath outside the product is formed by extruding and wrapping an environment-friendly halogen-free low-smoke flame-retardant material, thereby not only protecting the metal sheath and being capable of adapting to various corrosive places, but also having no influence on the environment, underground water and other resources.

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. halogen-free flame-retardant layer belting; 5. a stainless steel protective layer; 6. 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 stainless steel sleeve flexible mineral insulation fireproof cable comprises a copper conductive core 1, the copper conductive core 1 is formed by multi-core twisting, a mineral insulation layer 2 is wrapped outside the copper conductive core 1, the mineral insulation layer 2 is made of non-calcined phlogopite tape, a halogen-free flame retardant filling rope 3 is wrapped outside the mineral insulation layer 2, a halogen-free flame retardant covering tape 4 is wrapped outside the halogen-free flame retardant filling rope 3, a stainless steel protective layer 5 is wrapped outside the halogen-free flame retardant covering tape 4, the stainless steel protective layer 5 is a high-strength corrosion-resistant stainless steel tape, a longitudinal argon arc welding continuous welding embossing process is adopted, a halogen-free low-smoke flame retardant outer sheath 6 is wrapped outside the stainless steel protective layer 5, the halogen-free low-smoke flame retardant outer sheath 6 is formed by extruding halogen-free low-smoke flame retardant material, the insulating material of the cable is continuously wrapped by inorganic mineral insulation tape, the continuous length is long, whether a single-core cable 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 1000 m; the section is large, the section of a single-core cable can reach 630mm, and the section of a multi-core cable can reach 70 mm; the cable is flexible, the cable can be coiled on the cable coil, the bending radius of the cable is 6-10D, the cable is smokeless and nontoxic during combustion, inorganic materials are adopted for insulation, no harmful gas is generated during combustion, secondary pollution is avoided, and the cable is an environment-friendly green product; the overload capacity is large, the current-carrying capacity of the cable is large, the overload capacity is high, the surface temperature of the cable is usually less than or equal to 70 ℃ according to wiring requirements, if the wiring is not touchable, the temperature of a cable sheath can be increased to 105 ℃ when the cable is not in contact with combustible building materials, and the long-term working temperature of the fireproof cable can reach 250 ℃ during overload; the organic mineral insulated fire-resistant cable needs to be penetrated by a plastic pipe or an iron pipe sometimes, the plastic pipe is easy to age and become brittle, the iron pipe is easy to rust, the fire-resistant cable is provided with a copper sheath which does not need to be penetrated, and the corrosion resistance of the copper sheath is good; the electromagnetic interference is avoided, and when the fireproof cable and the information and control wires are laid in the same vertical shaft, the interference on the signals and the information transmitted by the control wires and cables can be avoided under the shielding of the copper sheath; the safety is good, the fireproof cable can normally supply power in flame, fire extinguishing equipment is started, the fire loss is reduced, the safety to the human body is particularly reliable, the copper sheath is an excellent conductor and is the best grounding PE wire, and the grounding protection sensitivity and reliability are greatly improved when the copper sheath is continuous to the full length of the cable; the service life is long, the inorganic insulating material is high in temperature resistance and not easy to age, the service life of the inorganic insulating material is many times longer than that of an organic insulating cable, and the service life can reach more than 100 years in a normal working state; the packaging, transportation, installation and accessories of the flexible fireproof cable are similar to those of a common cable, and the flexible fireproof cable is simple; the flexible fireproof cable is good in economy, the manufacturing process is advanced, the installation is simple, the comprehensive cost of the flexible fireproof cable is obviously lower than that of a rigid mineral insulated cable under the same condition, the copper conductive wire core 1 plays a role in transmitting electric energy, can be a round solid core or a multi-core round twisted together, and is generally an annealed copper conductor and manufactured in a multi-layer concentric overlapping wrapping mode, the stainless steel protective layer 5 is made of a high-strength corrosion-resistant stainless steel band, the longitudinal argon arc welding continuous welding embossing process is used for achieving a protective effect and guaranteeing the flexibility of the cable during installation, the outer sheath outside the flexible fireproof cable is formed by extruding and wrapping an environment-friendly low-smoke flame-retardant material, the metal sheath can be protected to adapt to various corrosive places, and meanwhile, the environment and underground water and other resources are not affected.

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 crimping, and no specific description is made here.

When the cable is used, the copper conductive wire core 1 plays a role in transmitting electric energy, can be a round solid core, or can be a multi-core round twisted together, generally is an annealed copper conductor, the mineral insulating layer 2 is made of non-calcined gold mica tapes in a mode of multi-layer concentric overlapping wrapping, the stainless steel protective layer 5 is made of a high-strength corrosion-resistant stainless steel band, a longitudinal argon arc welding continuous welding embossing process is used, the protective effect can be achieved, the flexibility of the cable during installation can be guaranteed, the outer sheath of the product is formed by extruding and wrapping environment-friendly halogen-free low-smoke flame-retardant materials, the metal sheath can be protected from being suitable for various corrosive places, and meanwhile, the environment and underground water and other resources are not affected.

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 stainless steel bushing, includes copper conductor core (1), its characterized in that: the outside parcel of copper conductor core (1) has mineral insulation layer (2), the outside parcel of mineral insulation layer (2) has halogen-free fire-retardant filling rope (3), the outside parcel of halogen-free fire-retardant filling rope (3) has halogen-free fire-retardant layer band (4), the outside parcel of halogen-free fire-retardant layer band (4) has stainless steel inoxidizing coating (5), the outside parcel of stainless steel inoxidizing coating (5) has halogen-free low fire-retardant oversheath (6) of cigarette.

2. The stainless steel-sheathed flexible mineral-insulated fireproof cable according to claim 1, wherein: the copper conductive wire core (1) is formed by multi-core stranding.

3. The stainless steel-sheathed flexible mineral-insulated fireproof cable according to claim 1, wherein: the mineral insulating layer (2) is made of non-calcined auro mica tapes.

4. The stainless steel-sheathed flexible mineral-insulated fireproof cable according to claim 1, wherein: the stainless steel protective layer (5) is a high-strength corrosion-resistant stainless steel band and adopts a longitudinal argon arc welding continuous welding embossing process.

5. The stainless steel-sheathed flexible mineral-insulated fireproof cable according to claim 1, wherein: the halogen-free low-smoke flame-retardant outer sheath (6) is formed by extruding and wrapping halogen-free low-smoke flame-retardant materials.