CN210443287U

CN210443287U - Silica gel insulation fireproof cable

Info

Publication number: CN210443287U
Application number: CN201921632419.3U
Authority: CN
Inventors: 巨苏立
Original assignee: Jufeng Wire & Cable Co ltd
Current assignee: Jufeng Wire & Cable Co ltd
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-05-01
Anticipated expiration: 2029-09-28

Abstract

The utility model relates to a wire and cable technical field especially relates to a silica gel insulation fire prevention cable. The fireproof mica tape comprises a halogen-free flame-retardant outer sheath (1), a first organic silica gel layer (2), a fireproof mica tape layer (3), a second organic silica gel layer (4), a partition layer (6), mineral flame-retardant filling (5), a reinforcing core (9) and a wire core; the sinle silk includes insulating skin (7) and conductor core (8), there is not steamed fire-retardant oversheath (1), first organosilicon layer (2), fire-resistant mica tape layer (3) and second organosilicon layer (4) by outer and interior setting gradually, cut off layer (6), the fire-retardant packing of mineral (5), strengthen core (9) and sinle silk and set up in second organosilicon layer (4), it sets up in the center of the insulating fire prevention cable of silica gel to strengthen core (9), cut off layer (6) and separate the sinle silk, the fire-retardant packing of mineral (5) sets up between sinle silk and cut off layer (6).

Description

Silica gel insulation fireproof cable

Technical Field

The utility model relates to a wire and cable technical field especially relates to a silica gel insulation fire prevention cable.

Background

Silica gel is classified into inorganic silica gel and organic silica gel. The organic silica gel mainly refers to silicon rubber, and the molecules of the silicon rubber simultaneously contain inorganic and organic elements, so that the organic silica gel has a series of unique properties. On the mechanical property, the elasticity can be kept for a long time at the temperature of minus 60 ℃ to minus 200 ℃; electrical property and stability, weather resistance, ozone resistance, hydrophobicity, good electrical insulation property and chemical stability. These excellent properties are not comparable to other materials.

Most of the existing fireproof cables only use low-halogen or halogen-free plastic sheaths as insulating layers, and the fireproof cables have the problems of poor toughness, poor elasticity and poor waterproof performance at low temperature.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the technique that exists is not enough to the aforesaid, provides an insulating fire prevention cable of silica gel, adopts the organosilicon glue film as insulating inner liner, has improved the mechanical properties under the cable low temperature and has improved the resistant chemical corrosion performance of cable.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a silica gel insulation fireproof cable comprises a halogen-free flame-retardant outer sheath, a first organic silica gel layer, a fireproof mica tape layer, a second organic silica gel layer, a partition layer, mineral flame-retardant filling, a reinforcing core and a wire core; the sinle silk is including insulating skin and conductor core, there is not steamed fire-retardant oversheath, first organosilicon silica gel layer, fire-resistant mica tape layer and second organosilicon silica gel layer by outer and interior setting gradually, cut off layer, the fire-retardant packing of mineral, strengthen core and sinle silk and set up in the second organosilicon gel layer, strengthen the core and set up in the center of silica gel insulation fire prevention cable, cut off the layer and separate the sinle silk, the fire-retardant packing of mineral sets up between sinle silk and cut off the layer.

Further optimize this technical scheme, the partition layer uses the aluminium foil to make, the mineral matter that the fire-retardant packing of mineral used is aluminium hydroxide, it forms to strengthen the core for multicore steel wire stranding, the quantity of sinle silk is two.

The technical scheme is further optimized, the partition layer is made of rubber, the mineral used for flame-retardant filling of the mineral is magnesium hydroxide, the reinforcing core is a single-core steel wire, and the number of the wire cores is four.

The technical scheme is further optimized, the partition layer is made of plastics, the mineral used for mineral flame-retardant filling is aluminum hydroxide, the reinforcing core is a single-core steel wire, and the number of the wire cores is five or more than five.

Compared with the prior art, the utility model has the advantages of it is following: 1. the organic silica gel layer is arranged in the cable, so that the structure is favorable for ensuring that the cable has good flexibility when used under a low-temperature condition; 2. the reinforcing core is arranged in the cable, so that the structure is favorable for ensuring the tensile resistance of the cable; 3. the fireproof mica tape layer is arranged in the cable, and the structure is favorable for ensuring that the cable has excellent fireproof and flame-retardant properties; 4. be equipped with the fire-retardant packing of mineral in the cable, the favorable inlayer of having guaranteed the cable under the condition of outer burning of this structure can better be preserved, and the security is high.

Drawings

Fig. 1 is a schematic sectional view of the present invention.

In the figure: 1. a halogen-free flame-retardant outer sheath; 2. a first organic silica gel layer; 3. a layer of refractory mica tape; 4. a second organic silica gel layer; 5. mineral flame retardant filling; 6. a partition layer; 7. an insulating outer layer; 8. a conductor core; 9. and (6) reinforcing the core.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The specific implementation mode is as follows: as shown in fig. 1, the silica gel insulation fireproof cable of the present invention includes a halogen-free flame-retardant outer sheath 1, a first organic silica gel layer 2, a fire-resistant mica tape layer 3, a second organic silica gel layer 4, a partition layer 6, a mineral flame-retardant filler 5, a reinforcing core 9 and a wire core; the sinle silk is including insulating outer 7 and conductor core 8, there is not steamed fire-retardant oversheath 1, first organosilicon glue film layer 2, fire-resistant mica tape layer 3 and second organosilicon glue film 4 by outer and interior setting gradually, it sets up in second organosilicon glue film layer 4 to cut off layer 6, the fire-retardant packing of mineral 5, strengthen core 9 and sinle silk, strengthen core 9 sets up in the center of the insulating fire prevention cable of silica gel, cut off layer 6 and separate the sinle silk, the fire-retardant packing of mineral 5 sets up between sinle silk and cut off layer 6.

Preferably, the partition layer 6 is made of aluminum foil, the mineral used in the mineral flame-retardant filler 5 is aluminum hydroxide, the reinforcing core 9 is formed by twisting multi-core steel wires, and the number of the wire cores is two.

Preferably, the partition layer 6 is made of rubber, the mineral used for the mineral flame-retardant filler 5 is magnesium hydroxide, the reinforcement core 9 is a single-core steel wire, and the number of the wire cores is four.

Preferably, the partition layer 6 is made of plastic, the mineral used in the mineral flame-retardant filler 5 is aluminum hydroxide, the reinforcement core 9 is a single-core steel wire, and the number of the wire cores is five or more.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides an insulating fire prevention cable of silica gel which characterized in that: the fireproof mica tape comprises a halogen-free flame-retardant outer sheath (1), a first organic silica gel layer (2), a fireproof mica tape layer (3), a second organic silica gel layer (4), a partition layer (6), mineral flame-retardant filling (5), a reinforcing core (9) and a wire core; the sinle silk includes insulating skin (7) and conductor core (8), there is not steamed fire-retardant oversheath (1), first organosilicon layer (2), fire-resistant mica tape layer (3) and second organosilicon layer (4) by outer and interior setting gradually, cut off layer (6), the fire-retardant packing of mineral (5), strengthen core (9) and sinle silk and set up in second organosilicon layer (4), it sets up in the center of the insulating fire prevention cable of silica gel to strengthen core (9), cut off layer (6) and separate the sinle silk, the fire-retardant packing of mineral (5) sets up between sinle silk and cut off layer (6).

2. The silica gel insulated fireproof cable of claim 1, wherein: the partition layer (6) is made of aluminum foil, the mineral used for the mineral flame-retardant filling (5) is aluminum hydroxide, the reinforcing core (9) is formed by twisting multi-core steel wires, and the number of the wire cores is two.

3. The silica gel insulated fireproof cable of claim 1, wherein: the partition layer (6) is made of rubber, the mineral used for the mineral flame-retardant filler (5) is magnesium hydroxide, the reinforcing core (9) is a single-core steel wire, and the number of wire cores is four.

4. The silica gel insulated fireproof cable of claim 1, wherein: the partition layer (6) is made of plastics, the mineral used by the mineral flame-retardant filler (5) is aluminum hydroxide, the reinforcing core (9) is a single-core steel wire, and the number of the wire cores is five or more than five.