CN213877657U - Fireproof cable - Google Patents

Abstract

The utility model discloses a fireproof cable belongs to cable technical field, fireproof cable, including four cable inner cores, left side the cover is equipped with the flame retardant coating on the cable inner core, the inner wall of flame retardant coating contacts with four cable inner cores respectively, the inside packing of flame retardant coating has the gel layer, the cover is equipped with the weaving layer on the flame retardant coating, the inner wall fixedly connected with evenly distributed's of weaving layer bracing piece, the other end and the flame retardant coating fixed connection of bracing piece, the cover is equipped with the wearing layer on the weaving layer, it has the sand of putting out a fire to fill between wearing layer and the weaving layer, fixedly connected with separates the temperature cotton between flame retardant coating and the weaving layer. The utility model discloses a, can effectually protect the cable inner core that is used for power transmission, reduce the cable melting, expose the conductor, cause the electric power accident or make the condition of power failure take place to make this cable have good fire behavior, improve the practicality of device.

Description

Fireproof cable

Technical Field

The utility model relates to the technical field of cables, more specifically say, relate to fireproof cable.

Background

Cables are widely used for power, communication and related transmissions; typically a rope-like cable made up of several or groups of at least two twisted conductors, each group insulated from each other and often twisted around a center, the entire outer surface being covered with a highly insulating covering.

The cable in the prior art does not have good fireproof performance, and when a fire disaster occurs or a special production environment needs fireproof performance, a common cable is easy to melt, a conductor is exposed, a power accident is caused or caused, and therefore the fireproof cable is needed.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a fireproof cable possesses fire prevention and safe advantage, has solved the problem that above-mentioned background art mentioned.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

Fireproof cable, including four cable inner cores, the left side the cover is equipped with the flame retardant coating on the cable inner core, the inner wall of flame retardant coating contacts with four cable inner cores respectively, the inside packing of flame retardant coating has the gel layer, the cover is equipped with the weaving layer on the flame retardant coating, the inner wall fixedly connected with evenly distributed's of weaving layer bracing piece, the other end and the flame retardant coating fixed connection of bracing piece, the cover is equipped with the wearing layer on the weaving layer, it has the sand of putting out a fire to fill between wearing layer and the weaving layer, fixedly connected with separates the temperature cotton between flame retardant coating and the weaving layer.

Preferably, the cable inner core comprises an inner conductor, a fireproof cloth is sleeved on the inner conductor, and the outer side of the fireproof cloth is in contact with the fireproof layer.

Preferably, the fireproof cloth is blended cloth of flame-retardant nylon and medium-alkali twistless roving in a ratio of 5: 2.

Preferably, the gel layer is an inorganic polymeric silicon adhesive layer.

Preferably, the woven layer is formed by alternately weaving the boron sand yarns and the mica tapes.

Preferably, the fireproof layer is a mixed coating of carbon fiber and high-temperature ceramic cement.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) the fireproof layer is a mixed coating of carbon fiber and high-temperature ceramic glue, the thickness of the fireproof layer is 1-5mm, the carbon fiber can resist the high temperature of more than 3000 ℃ when not contacting with air and an oxidant, the fireproof layer has outstanding heat resistance, compared with other materials, the strength of the carbon fiber begins to reduce when the temperature is higher than 1500 ℃, the higher the temperature is, the higher the fiber strength is, the effect of protecting the inner core of the cable is achieved, the fireproof capacity of the cable is improved, the gel layer is inorganic polymerized silica gel which is a high-quality fireproof material, the fireproof capacity of the cable is further improved, the woven layer is formed by alternately weaving boron sand wires and mica tapes, the borax melting point is about 880 ℃, the mica tapes are fireproof insulating materials, and the inner core of the cable can be further protected, and then improve the fire-proof ability of this cable, then through the setting of the cotton of thermal insulation, when the conflagration breaks out, the burning can lead to the temperature to rise, the cotton setting of thermal insulation can reduce the conduction of heat greatly, and then play the effect of protecting the cable inner core, then can set up the cable inner core in the cotton central point of thermal insulation through the setting of bracing piece and flame retardant coating, and then make the thermal insulation of thermal insulation cotton to the cable inner core more even, improve the protective capacities to the cable inner core, the setting of wearing layer can protect this cable, reduce the external wear to this cable, thus improve the life of this cable, and when the conflagration breaks out, the fire will melt the wearing layer at first, through the setting of the sand of putting out a fire, the sand of putting out a fire after the wearing layer melts can spill and reduce the burning of fire, play certain fire extinguishing effect, thus play the purpose of protecting cable, the device, can be effectual be used for power transmission's cable inner core to protect, reduce the cable melting, expose the conductor, cause the electric power accident or make the condition of electric power trouble take place to make this cable have good fire behavior, improve the practicality of device.

(2) This scheme passes through in the cable inner core setting of fire prevention cloth can effectually protect the inner conductor to improve the fire behavior of inner conductor, and can avoid the condition of inner conductor electric leakage to take place.

(3) According to the scheme, the fireproof cloth is blended cloth of flame-retardant nylon and medium-alkali untwisted roving in a ratio of 5:2, so that the fireproof cloth is cost-saving and has a good fireproof effect.

(4) The gel layer is an inorganic polymerized silicon viscose layer which is a high-quality refractory material, so that the fireproof capacity of the cable is further improved.

(5) The braided layer is formed by alternately braiding the boron sand wires and the mica tapes, the borax melting point is about 880 ℃, and the mica tapes are fire-resistant insulating materials, so that the inner core of the cable can be further protected, and the fire resistance of the cable is further improved.

(5) According to the scheme, the fireproof layer is a mixed coating of carbon fibers and high-temperature ceramic glue, the thickness of the fireproof layer is 1-5mm, the carbon fibers can resist high temperature of more than 3000 ℃ when the fireproof layer is not in contact with air and an oxidant, the fireproof layer has outstanding heat resistance, compared with other materials, the strength of the carbon fibers begins to decline when the temperature is higher than 1500 ℃, the temperature is higher, the fiber strength is higher, the effect of protecting an inner core of a cable is achieved, and the fireproof capacity of the cable is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a subjective view of the present invention.

The reference numbers in the figures illustrate:

1. an inner core of the cable; 101. an inner conductor; 102. fireproof cloth; 2. a fire barrier layer; 3. a gel layer; 4. weaving layer; 5. a support bar; 6. a wear layer; 7. fire extinguishing sand; 8. thermal insulation cotton.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be 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 in specific cases to those skilled in the art.

Referring to fig. 1-2, the fireproof cable comprises four cable cores 1, a fireproof layer 2 is sleeved on a left cable core 1, the inner wall of the fireproof layer 2 is respectively contacted with the four cable cores 1, a gel layer 3 is filled in the fireproof layer 2, a braided layer 4 is sleeved on the fireproof layer 2, supporting rods 5 which are uniformly distributed are fixedly connected with the inner wall of the braided layer 4, the other end of each supporting rod 5 is fixedly connected with the fireproof layer 2, a wear-resistant layer 6 is sleeved on the braided layer 4, fire extinguishing sand 7 is filled between the wear-resistant layer 6 and the braided layer 4, heat insulation cotton 8 is fixedly connected between the fireproof layer 2 and the braided layer 4, the fireproof layer 2 is a mixed coating of carbon fiber and high-temperature ceramic glue, the thickness of the fireproof layer is 1-5mm, when the fireproof layer is not contacted with air and oxidant, the carbon fiber can bear the high temperature of more than 3000 ℃, and has outstanding heat resistance, compared with other materials, the strength of the carbon fiber begins to decline when the temperature is higher than 1500 ℃, the higher the temperature is, the higher the fiber strength is, so that the effect of protecting the cable inner core 1 is achieved, the fireproof capacity of the cable is improved, the gel layer 3 is inorganic polymerized silicon viscose which is a high-quality fireproof material, so that the fireproof capacity of the cable is further improved, the weaving layer 4 is formed by alternately weaving borax wires and mica tapes, the borax melting point is about 880 ℃, the mica tapes are fireproof insulating materials, so that the cable inner core 1 can be further protected, the fireproof capacity of the cable is further improved, then through the arrangement of the thermal insulation cotton 8, the temperature is increased due to combustion when a fire disaster occurs, the thermal conduction can be greatly reduced through the arrangement of the thermal insulation cotton 8, the effect of protecting the cable inner core 1 is achieved, then through the arrangement of the support rod 5 and the fireproof layer 2, the cable inner core 1 can be arranged at the center position of the thermal insulation cotton 8, and then make thermal-insulated more even of cotton 8 to cable inner core 1 that separates the temperature, improve the protective capacities to cable inner core 1, wearing layer 6's setting can be protected this cable, reduce the external wearing and tearing to this cable, thereby improve the life of this cable, and when the conflagration breaing out, big fire can at first melt wearing layer 6, through the setting of sand 7 of putting out a fire, sand 7 of putting out a fire after wearing layer 6 melts can spill the burning that reduces big fire, play certain fire extinguishing effect, thereby play the purpose to cable protection, the device, can effectually protect cable inner core 1 that is used for power transmission, reduce the cable fusion, expose the conductor, cause the electric power accident or make the condition of electric power trouble take place, thereby make this cable have good fire behavior, the practicality of the improvement device.

Further, cable inner core 1 includes inner conductor 101, and the cover is equipped with fire prevention cloth 102 on the inner conductor 101, and the outside and the fire prevention layer 2 contact of fire prevention cloth 102, setting through fire prevention cloth 102 in cable inner core 1 can be effectual protects inner conductor 101 to improve inner conductor 101's fire-proof ability, and can avoid the condition of inner conductor 101 electric leakage to take place.

Furthermore, the fireproof cloth 102 is blended cloth of flame-retardant nylon and medium-alkali twistless roving 5:2, and the fireproof cloth 102 is blended cloth of flame-retardant nylon and medium-alkali twistless roving 5:2, so that the fireproof cloth 102 is cost-saving and has a good fireproof effect.

Furthermore, the gel layer 3 is an inorganic polymerized silicon adhesive layer, and the inorganic polymerized silicon adhesive layer is an inorganic polymerized silicon adhesive layer which is a high-quality refractory material, so that the fireproof capacity of the cable is further improved.

Furthermore, the braided layer 4 is formed by alternately braiding boron sand wires and mica tapes, the braided layer 4 is formed by alternately braiding the boron sand wires and the mica tapes, the borax melting point is about 880 ℃, and the mica tapes are fireproof insulating materials, so that the cable inner core 1 can be further protected, and the fireproof capacity of the cable is further improved.

Furthermore, the fireproof layer 2 is a mixed coating of carbon fibers and high-temperature ceramic adhesive, the fireproof layer 2 is the mixed coating of the carbon fibers and the high-temperature ceramic adhesive, the thickness of the fireproof layer is 1-5mm, the carbon fibers can resist high temperature of more than 3000 ℃ when the fireproof layer is not in contact with air and an oxidant, and the fireproof layer has outstanding heat resistance.

The working principle is as follows: firstly, the cable inner core 1 can be used for power transmission, the fireproof layer 2 is a mixed coating of carbon fiber and high-temperature ceramic glue, the thickness of the fireproof layer is 1-5mm, the carbon fiber can bear the high temperature of more than 3000 ℃ when not contacting with air and oxidant, the fireproof layer has outstanding heat resistance, compared with other materials, the strength of the carbon fiber begins to be reduced when the temperature is higher than 1500 ℃, the higher the temperature is, the higher the fiber strength is, so that the cable inner core 1 is protected, the fireproof capability of the cable is improved, the gel layer 3 is inorganic polymerized silicon viscose, the inorganic polymerized silicon viscose is a high-quality fireproof material, so that the fireproof capability of the cable is further improved, the fireproof layer 4 is formed by alternately weaving boron sand wires and woven layer mica tapes, the borax melting point is about 880 ℃, the mica tapes are fireproof insulating materials, so that the cable inner core 1 can be further protected, and then improve the fire-proof ability of this cable, then through the setting of the cotton 8 of insulating temperature, when the conflagration breaks out, the burning can lead to the temperature to rise, the setting of the cotton 8 of insulating temperature can reduce the conduction of the heat greatly, and then play a role in protecting the cable inner core 1, then through the setting of bracing piece 5 and flame retardant coating 2 can set up the cable inner core 1 in the central point of the cotton 8 of insulating temperature, and then make the cotton 8 of insulating temperature insulate against heat of the cable inner core 1 more evenly, improve the protective capacities to the cable inner core 1, the setting of wearing layer 6 can protect this cable, reduce the external wear to this cable, thus improve the life of this cable, and when the conflagration breaks out, the fire will melt the wearing layer 6 at first, through the setting of the sand 7 of putting out, the sand 7 of putting out after the wearing layer 6 melts will spill and reduce the burning of fire, play a certain fire extinguishing effect, thus play the purpose of protecting the cable, the device can effectually protect cable inner core 1 for power transmission, reduces the cable melting, exposes the conductor, causes the electric power accident or makes the condition of power failure take place to make this cable have good fire behavior, improve the practicality of device, solved ordinary cable very easy melting, expose the conductor, cause the electric power accident or make the problem of power failure.

The above is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims (3)

1. Fireproof cable, including four cable inner cores (1), its characterized in that: the left side the cover is equipped with flame retardant coating (2) on cable inner core (1), the inner wall of flame retardant coating (2) contacts with four cable inner cores (1) respectively, the inside packing of flame retardant coating (2) has gel layer (3), the cover is equipped with weaving layer (4) on flame retardant coating (2), the inner wall fixedly connected with evenly distributed's of weaving layer (4) bracing piece (5), the other end and flame retardant coating (2) fixed connection of bracing piece (5), the cover is equipped with wearing layer (6) on weaving layer (4), it has fire extinguishing sand (7) to fill between wearing layer (6) and weaving layer (4), fixedly connected with separates temperature cotton (8) between flame retardant coating (2) and weaving layer (4).

2. The fire-protected cable of claim 1, wherein: the cable inner core (1) comprises an inner conductor (101), a fireproof cloth (102) is sleeved on the inner conductor (101), and the outer side of the fireproof cloth (102) is in contact with the fireproof layer (2).

3. The fire-protected cable of claim 1, wherein: the gel layer (3) is an inorganic polymerized silicon adhesive layer.

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