CN211181686U

CN211181686U - Flexible mineral insulation fireproof cable

Info

Publication number: CN211181686U
Application number: CN201921830894.1U
Authority: CN
Inventors: 陈世文
Original assignee: Guangdong Jinpai Cable Co ltd
Current assignee: Guangdong Golden Cable Group Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-08-04
Anticipated expiration: 2029-10-29

Abstract

The utility model relates to the technical field of cables, a flexible mineral insulation fireproof cable is disclosed, including cable body and guide hole, the outmost steel band that is provided with of cable body keeps off the fire layer, and the inside of guide hole is provided with the rectangular hole, and the inside of rectangular hole is separated into four group's triangle regions and four triangle regions through the baffle and has placed video unit line, volume unit line, network unit line and control unit line respectively in, and the baffle sets up to two-layer, is insulating layer and heat resistance layer respectively. The utility model has the advantages that: the fireproof and insulating performances are extremely strong, the practicability is strong, and the popularization and the use are facilitated.

Description

Flexible mineral insulation fireproof cable

Technical Field

The utility model relates to the technical field of cables, specifically a flexible mineral insulation fireproof cable.

Background

The mineral insulated cable is an MI cable for short, and comprises a copper conductor, a mineral insulated material and a copper sheath, wherein the materials of the three structures are inorganic materials, so that the mineral insulated cable has incomparable excellent fireproof performance, and the mineral insulated cable is widely applied to occasions such as high-rise buildings, petrochemical industry, airports, tunnels, offshore oil platforms, aerospace and the like.

Chinese patent (publication No. CN 207833944U, bulletin date: 2018.09.07) discloses a flexible mineral insulation fireproof cable, which comprises a copper conductor, a first mica tape layer, a second mica tape layer, a first ceramic silicon rubber composite tape layer, a second ceramic silicon rubber composite tape layer, a first low-smoke halogen-free wrapping tape layer, a third ceramic silicon rubber composite tape layer, a second low-smoke halogen-free wrapping tape layer and an outer sheath which are sequentially arranged from inside to outside; through the optimization of the internal structure design of the cable, the material optimization of each structural layer and the optimization of the production process, the optimization of multiple aspects is combined with each other, so that the cable has good flexibility, is easy to bend, has long production length, can be produced by common equipment in the cable industry, has simple production process, is convenient and quick to install and lay, and can meet the market demand. However, the cable is only provided with a fireproof layer and an insulating layer, and the cable after long-time use is easily damaged, so that the fireproof and insulating capabilities are reduced, the service life is short, and the fireproof and insulating capabilities are not guaranteed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flexible mineral insulation fireproof 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 flexible mineral insulation fireproof cable, includes cable body and guide hole, and the outmost steel band that is provided with of cable body keeps off the fire layer, and the steel band keeps off the fire layer also can play the effect of resistance to compression for the cable body when preventing fires to guarantee the steadiness of cable body. The inside of guide hole is provided with the rectangular hole, the video unit line has been placed respectively in four triangle regions and four triangle regions are separated into to the inside in rectangular hole through the baffle, the volume unit line, network unit line and control unit line, the baffle sets up to two-layer, be insulating layer and heat resistance layer respectively, the insulating layer is used for preventing the video unit line, the volume unit line, the electrical property transmission between network unit line and the control unit line, the heat resistance layer is used for blocking the video unit line, the volume unit line, the heat transfer between network unit line and the control unit line. The video unit line, the volume unit line, the network unit line and the control unit line can be independently placed through the partition plate, so that the influence on the use of other unit lines when one of the video unit line, the volume unit line, the network unit line and the control unit line is in failure is avoided.

As a further aspect of the present invention: the inner ring of the steel belt fire blocking layer is provided with a fire-proof layer, and the interior of the fire-proof layer is filled with halogen-free low-smoke flame-retardant polyolefin, so that the steel belt fire blocking layer is not easy to burn.

As a further aspect of the present invention: the inboard of flame retardant coating is provided with the concrete foam layer, and the concrete foam layer has the effect of buffering for slow down the inside pressure that receives of cable body.

As a further aspect of the present invention: the inboard on concrete foam layer is provided with the vacuum layer, and the setting on vacuum layer blocks the guide hole and is connected with external, and then plays insulating and thermal-insulated effect.

As a further aspect of the present invention: the outside on steel band fire blocking layer is provided with the water proof membrane, and the setting of water proof membrane is used for putting into the place that has the water source when the cable body also can use, has further improved the application range of this cable.

Compared with the prior art, the beneficial effects of the utility model are that: the partition board is provided with two layers, namely an insulating layer and a heat-resistant layer, so that the insulation and the heat resistance can be realized; the vacuum layer is arranged to block the connection between the guide hole and the outside, so that the insulation and heat insulation effects are improved; the fireproof layer and the insulating layer are arranged, so that the insulating and fireproof performance is further improved; through setting up three kinds of fire prevention and insulating mode for this cable has extremely strong guarantee ability. The utility model has the advantages that: the fireproof and insulating performances are extremely strong, the practicability is strong, and the popularization and the use are facilitated.

Drawings

Fig. 1 is a schematic structural diagram of a flexible mineral-insulated fireproof cable.

Fig. 2 is a schematic perspective view of a flexible mineral-insulated fireproof cable.

Fig. 3 is a schematic structural diagram of a separator in a flexible mineral insulated fireproof cable.

Wherein: the cable comprises a cable body 10, a guide hole 11, a rectangular hole 12, a partition plate 13, a video unit wire 14, a volume unit wire 15, a network unit wire 16, a control unit wire 17, a waterproof film 18, a steel belt fire blocking layer 19, a fire-proof layer 20, a concrete foam layer 21, an insulating layer 22, a heat-resistant layer 23 and a vacuum layer 24.

Detailed Description

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

The first embodiment is as follows:

referring to fig. 1-3, a flexible mineral insulation fireproof cable includes a cable body 10 and a guide hole 11, a steel belt fire blocking layer 19 is disposed on the outermost layer of the cable body 10, and the steel belt fire blocking layer 19 can also play a role in resisting pressure for the cable body 10 while preventing fire, thereby ensuring the stability of the cable body 10. The inner ring of the steel belt fire blocking layer 19 is provided with a fire-proof layer 20, and the interior of the fire-proof layer 20 is filled with halogen-free low-smoke flame-retardant polyolefin, so that the steel belt fire blocking layer is not easy to burn. The inner side of the fire-proof layer 20 is provided with a concrete foam layer 21, and the concrete foam layer 21 has a buffering function and is used for relieving the pressure applied to the interior of the cable body 10. The inner side of the concrete foam layer 21 is provided with a vacuum layer 24, and the arrangement of the vacuum layer 24 blocks the connection between the guide hole 11 and the outside, thereby achieving the effects of insulation and heat insulation. The inside of the guide hole 11 is provided with a rectangular hole 12, the inside of the rectangular hole 12 is divided into four triangular areas by a partition plate 13, and video cell lines 14, volume cell lines 15, network cell lines 16 and control cell lines 17 are respectively placed in the four triangular areas, the partition plate 13 is provided with two layers, namely an insulating layer 22 and a heat-resistant layer 23, the insulating layer 22 is used for preventing the electrical transmission among the video cell lines 14, the volume cell lines 15, the network cell lines 16 and the control cell lines 17, and the heat-resistant layer 23 is used for blocking the heat transmission among the video cell lines 14, the volume cell lines 15, the network cell lines 16 and the control cell lines 17. The video cell line 14, the volume cell line 15, the network cell line 16 and the control cell line 17 can be independently arranged through the partition board 13, thereby preventing the use of other cell lines from being influenced when one of the cell lines is in failure.

The utility model discloses a theory of operation is: the video unit line 14, the volume unit line 15, the network unit line 16 and the control unit line 17 are independently placed in the corresponding rectangular holes 12, the connection between the rectangular holes 12 and the outside is blocked by the vacuum layer 24, and the cable plays an insulating role, and the fireproof capacity of the cable can be improved by the steel belt fireproof layer 19 and the fireproof layer 20.

Example two:

on the basis of the first embodiment, the waterproof membrane 18 is arranged on the outer side of the steel belt fire-blocking layer 19, and the waterproof membrane 18 is arranged to be used when the cable body 10 is placed in a place with a water source, so that the application range of the cable is further enlarged.

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 flexible mineral insulation fireproof cable, including cable body (10) and guide hole (11), a serial communication port, the outmost of cable body (10) is provided with steel band fire blocking layer (19), the inside of guide hole (11) is provided with rectangular hole (12), the inside of rectangular hole (12) is separated into four groups of triangle regions and four triangle regions through baffle (13) and has placed video unit line (14) respectively, volume unit line (15), network unit line (16) and control unit line (17), baffle (13) set up to two-layerly, be insulating layer (22) and heat resistance layer (23) respectively.

2. A flexible mineral insulated fireproof cable according to claim 1, wherein the inner circumference of the steel band fire barrier (19) is provided with a fire barrier (20).

3. A flexible mineral insulated fireproof cable according to claim 2, wherein the fireproof layer (20) is provided with a concrete foam layer (21) on the inside.

4. A flexible mineral insulated fireproof cable according to claim 3, wherein the concrete foam layer (21) is provided with a vacuum layer (24) on the inside.

5. A flexible mineral insulated fireproof cable according to claim 1 or 2, wherein the steel strip fire barrier (19) is provided with a waterproof membrane (18) on the outside.