CN217690585U

CN217690585U - Mineral substance insulation high-temperature-resistant fireproof cable

Info

Publication number: CN217690585U
Application number: CN202220281854.1U
Authority: CN
Inventors: 王涛
Original assignee: Wuhan Zhongxin Cable Group Co ltd
Current assignee: Wuhan Zhongxin Cable Group Co ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-10-28
Anticipated expiration: 2032-02-11

Abstract

The utility model discloses a high temperature resistant fireproof cable of mineral substance insulation belongs to wire and cable technical field, and it includes the shell body, be provided with the parcel layer in the shell body, be provided with the back-fire relief layer in the parcel in situ, be provided with the inoxidizing coating in the back-fire relief layer, be provided with the branch bank of tubes in the inoxidizing coating, be provided with a plurality of wire in the branch bank of tubes, the surface of wire is provided with the shielding layer, the surface of shielding layer is provided with the insulating layer, the cavity has been seted up in the branch bank of tubes. This high temperature resistant fireproof cable of mineral substance insulation through setting up back-fire relief layer, first flame retardant coating, second flame retardant coating, packing granule, filling layer, pyrocondensation piece and isolation layer, the setting of these structures makes this device have good fire behavior, can effectively prevent flame to cause the damage to the wire after receiving external high temperature influence to avoid the emergence of the electric leakage condition, very big reduction the potential safety hazard, guarantee the normal use of this device.

Description

Mineral substance insulation high-temperature-resistant fireproof cable

Technical Field

The utility model belongs to the technical field of wire and cable, specifically be an insulating high temperature resistant fireproof cable of mineral substance.

Background

The electric wire and cable is a wire product for transmitting electric energy and electric signals and realizing electromagnetic energy conversion, the cable usually consists of a cable core for transmitting the electric energy or the electric signals and a sheath for protecting and insulating, the cable which only comprises one cable core and has a thinner diameter is usually called as an electric wire, some electric wires are not provided with an insulating sheath and are called as a bare wire, and the cable core in the cable is made of a metal material with good electric conductivity. Traditional cable fire behavior is relatively poor, and the exocuticle appears breaking easily after receiving external high temperature to lead to inside wire to expose, the condition of electric leakage appears easily, thereby has very big potential safety hazard, is unfavorable for the normal use of cable.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the above-mentioned defect of prior art, the utility model provides a mineral substance insulation high temperature resistant fireproof cable has solved traditional cable fire behavior relatively poor, and the exocuticle appears breaking easily after receiving external high temperature to lead to the inside conductor to expose, appear the condition of electric leakage easily, thereby have very big potential safety hazard, be unfavorable for the normal use problem of cable.

(II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an insulating high temperature resistant fireproof cable of mineral substance, includes the shell body, be provided with the parcel layer in the shell body, be provided with the back-fire relief layer in the parcel layer, be provided with the inoxidizing coating in the back-fire relief layer, be provided with the dividing tube in the inoxidizing coating, be provided with a plurality of wire in the dividing tube, the surface of wire is provided with the shielding layer, the surface of shielding layer is provided with the insulating layer, the cavity has been seted up in the dividing tube, be provided with the anchor line in the cavity, the surface of shell body is provided with the external coating.

As a further aspect of the present invention: the fire retardant coating includes the isolation layer, the surface of isolation layer is provided with the second flame retardant coating, the surface of second flame retardant coating is provided with the filling layer, the surface of filling layer is provided with first flame retardant coating.

As a further aspect of the present invention: the packing layer is internally provided with packing particles, the packing layer is internally provided with a thermal shrinkage block, the packing particles adopt fireproof sand particles, and the thermal shrinkage block is a magnesium hydroxide particle block.

As a further aspect of the present invention: and water-blocking powder is arranged between the cavity and the reinforcing line, and the outer shell is made of acrylate rubber.

As a further aspect of the present invention: first flame retardant coating and second flame retardant coating all set up to glass fiber silk screen, the isolation layer adopts the ceramic fiber isolation layer.

As a further aspect of the present invention: the shielding layer is a graphene shielding layer, the wrapping layer is a wire mesh wrapping layer, and the outer coating is an anti-oxidation outer coating.

(III) advantageous effects

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

1. this insulating high temperature resistant fireproof cable of mineral substance, through setting up the back-fire relief layer, first flame retardant coating, the second flame retardant coating, pack the granule, the filling layer, pyrocondensation piece and isolation layer, when this device accident receives the firing, the back-fire relief layer constantly is heated, first flame retardant coating and second flame retardant coating can carry out effective separation to external flame this moment, avoid separating intraductal wire impaired, simultaneously pack intraformational pyrocondensation piece and produce steam with the air reaction after being heated, can carry out the separation to external flame, simultaneously through the evaporation of steam cool down this device, and filling layer and packing particle can produce the hard protective housing of texture after being heated, strengthen the protection to the wire when preventing flame further invasion, the isolation layer can be with the effective separation of each structure in separating the back-fire relief layer simultaneously, avoid external reaction to produce the influence to the direction, the setting of these structures, make this device have good fire behavior, can effectively prevent flame and cause the damage to the wire after receiving external high temperature influence, thereby avoid the emergence of electric leakage condition, the very big potential safety hazard that has reduced, guarantee the normal use of this device.

2. This high temperature resistant fireproof cable of mineral substance insulation, through setting up the branch bank of tubes, wire, shielding layer and insulating layer, the setting of these structures makes can effectively integrate many wires in this device to promote this device and bear power, can neatly separate through the branch bank of tubes simultaneously, avoid producing the influence each other, and the setting of shielding layer, can carry out effective separation to the electromagnetic induction that single wire during operation produced, avoid producing electromagnetic interference each other, avoid unnecessary energy loss.

3. This insulating high temperature resistant fireproof cable of mineral substance, through setting up the parcel layer, the outer coating, cavity and anchor line, the setting of outer coating can further promote the high temperature resistance and the fire behavior of this device, the setting of parcel layer simultaneously, wire mesh parcel layer can provide sufficient tensile strength for this device, avoid this device to break easily, the setting of cavity and anchor line simultaneously, en can further promote the tensile and the anti-bending strength of this device, can adapt to high strength operational environment, guarantee the life of this device.

Drawings

Fig. 1 is a schematic view of a three-dimensional cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the fire barrier layer of the present invention viewed from the right;

in the figure: the composite material comprises an outer shell 1, a wrapping layer 2, a fire barrier layer 3, a first fire-proof layer 31, filling particles 32, a filling layer 33, a heat-shrinkable block 34, a second fire-proof layer 35, an isolation layer 36, a protective layer 4, a separation pipe 5, a conducting wire 6, a shielding layer 7, an insulating layer 8, a cavity 9, a reinforcing wire 10 and an outer coating 11.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1-3, the utility model provides a technical solution: the utility model provides an insulating high temperature resistant fireproof cable of mineral substance, including shell body 1, be provided with parcel layer 2 in the shell body 1, parcel layer 2's setting, wire mesh parcel layer can provide sufficient tensile strength for this device, avoid this device to break easily, be provided with back-fire relief layer 3 in the parcel layer 2, be provided with inoxidizing coating 4 in the back-fire relief layer 3, be provided with divider tube 5 in the inoxidizing coating 4, be provided with a plurality of wire 6 in the divider tube 5, the surface of wire 6 is provided with shielding layer 7, shielding layer 7's setting, can carry out effective separation to the electromagnetic induction that single wire 6 during operation produced, avoid producing electromagnetic interference each other, avoid unnecessary energy loss, shielding layer 7's surface is provided with insulating layer 8, cavity 9 has been seted up in the divider tube 5, be provided with anchor line 10 in the cavity 9, the surface of shell body 1 is provided with outer coating 11, not only can promote the antioxidant capacity of this device, it is quick to avoid this device, can further promote the high temperature resistance and the fire behavior of this device simultaneously.

Specifically, as shown in fig. 3, fire barrier 3 includes isolation layer 36, isolation layer 36's setting, isolation layer 36 can be with effective separation of each structure in fire barrier 3 and the separate tube 5, avoid external reaction to produce the influence to the direction, isolation layer 36's surface is provided with second flame retardant coating 35, second flame retardant coating 35's surface is provided with filling layer 33, filling layer 33's surface is provided with first flame retardant coating 31, be provided with packing granule 32 in the filling layer 33, be provided with pyrocondensation piece 34 in the filling layer 33, packing granule 32 adopts the fire prevention sand grain, pyrocondensation piece 34 sets up to the magnesium hydrate granule piece.

Specifically, as shown in fig. 1 and 2, be provided with the powder that blocks water between cavity 9 and the anchor line 10, shell body 1 adopts acrylic rubber, first flame retardant coating 31 and second flame retardant coating 35 all set up to the glass fiber silk screen, the setting of first flame retardant coating 31 and second flame retardant coating 35, the first flame retardant coating 31 and the second flame retardant coating 35 of glass fiber material have good fire-retardant effect, can avoid external flame to continuously invade inside this device, avoid this device inner structure impaired, isolation layer 36 adopts the ceramic fibre isolation layer, shielding layer 7 adopts graphite alkene shielding layer, parcel layer 2 sets up to wire mesh parcel layer, outer coating 11 adopts anti-oxidant outer coating.

The utility model discloses a theory of operation does:

when this device uses, with this device switch-on in appointed circuit can, the anti-oxidant coating that 11 topcoats adopted can prevent this device from being eroded by the outside air, ensure this device's life, the condition of a fire appears in the accident simultaneously, this device receives when the firing, it is impaired when shell body 1, netted parcel layer 2 of silk can further protect this device, back-fire relief layer 3 constantly is heated simultaneously, first flame retardant coating 31 and second flame retardant coating 35 can carry out effective separation to external flame this moment, avoid the wire 6 in the pillar 5 impaired, pyrocondensation piece 34 in the filling layer 33 is heated the back and produces steam with the air reaction simultaneously, can carry out the separation to external flame, the evaporation through steam is cooled down this device simultaneously, and can produce the protective housing of hard texture after filling layer 33 and packing granule 32 are heated, strengthen the protection to wire 6 when preventing further invasion of flame.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a high temperature resistant fireproof cable of mineral substance insulation, includes shell body (1), its characterized in that: be provided with parcel layer (2) in shell body (1), be provided with back-fire relief layer (3) in parcel layer (2), be provided with inoxidizing coating (4) in back-fire relief layer (3), be provided with branch pillar (5) in inoxidizing coating (4), be provided with a plurality of wire (6) in branch pillar (5), the surface of wire (6) is provided with shielding layer (7), the surface of shielding layer (7) is provided with insulating layer (8), seted up cavity (9) in branch pillar (5), be provided with anchor line (10) in cavity (9), the surface of shell body (1) is provided with external coating (11).

2. The mineral insulated high temperature resistant fireproof cable of claim 1, wherein: fire-retardant layer (3) are including isolation layer (36), the surface of isolation layer (36) is provided with second flame retardant coating (35), the surface of second flame retardant coating (35) is provided with filling layer (33), the surface of filling layer (33) is provided with first flame retardant coating (31).

3. The mineral insulated high temperature resistant fireproof cable of claim 2, wherein: the filling layer (33) is internally provided with filling particles (32), the filling layer (33) is internally provided with a heat-shrinkable block (34), the filling particles (32) adopt fireproof sand grains, and the heat-shrinkable block (34) is set into a magnesium hydroxide block.

4. The mineral insulated high temperature resistant fireproof cable of claim 1, wherein: and water-blocking powder is arranged between the cavity (9) and the reinforcing line (10), and the outer shell (1) is an acrylate outer shell.

5. The mineral insulated high temperature resistant fireproof cable of claim 2, wherein: the first fireproof layer (31) and the second fireproof layer (35) are both arranged to be glass fiber silk screens, and the isolation layer (36) is a ceramic fiber isolation layer.

6. The mineral insulated high temperature resistant fireproof cable of claim 1, wherein: the shielding layer (7) is a graphene shielding layer, the wrapping layer (2) is a wire mesh wrapping layer, and the outer coating (11) is an anti-oxidation outer coating.