CN212989716U

CN212989716U - High flame-retardant communication optical cable for coal mine

Info

Publication number: CN212989716U
Application number: CN202021504185.7U
Authority: CN
Inventors: 钟碧才; 丁敏慧
Original assignee: Zhejiang Lianjie Technology Co ltd
Current assignee: Zhejiang Lianjie Technology Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-04-16
Anticipated expiration: 2030-07-27

Abstract

The utility model discloses a high fire-retardant communication optical cable for coal mine belongs to communication cable technical field, including the cable body, the inside center interlude of cable body installs the enhancement core, it has optic fibre around the interlude to strengthen the core periphery, it installs the protection sponge to strengthen core and optic fibre outside all parcel, the outer parcel of protection sponge is provided with the inoxidizing coating, the outside parcel of inoxidizing coating has the insulating layer, the outside compound fire-retardant layer of insulating layer, the outside compound parcel of fire-retardant layer has the flame retardant coating. The utility model relates to a novelty, be convenient for operation and excellent in use effect can improve fire proofness and fire resistance, meet protection optical cable fibre core that the conflagration can be fine and prevent to burn to improve the protectiveness, under receiving ambient pressure, the inside fibre core of protection optical cable that can be fine prevents that the inside fibre core of optical cable from splitting, still has the heat-proof quality, under the condition of conflagration, can completely cut off the heat in the external world, prevents to cause the inside fibre core of optical cable to receive high temperature and melt the damage.

Description

High flame-retardant communication optical cable for coal mine

Technical Field

The utility model relates to a communication cable technical field especially relates to a high fire-retardant communication optical cable is used in colliery.

Background

The communication optical cable is composed of a core and an outer sheath, wherein the core is composed of a plurality of (core) optical fibers (generally from a few cores to a few thousands of cores). Compared with the traditional symmetrical copper loop and coaxial copper loop, the transmission capacity of the optical fiber is much larger; the attenuation is less; the transmission distance is long; the volume is small; the weight is light; no electromagnetic interference exists; low cost and is currently the most promising communication transmission medium. It is being widely used for signal transmission of various departments of telecommunication, power, broadcasting and the like, and will gradually become a main body of future communication networks.

Patent number CN201392413Y discloses a flame-retardant communication optical cable for coal mine, which comprises a cable core and a sheath coated outside the cable core, and is characterized in that a reinforcing layer and a flame-retardant layer are sequentially coated outside the sheath from inside to outside; the reinforced layer is an aramid fiber reinforced layer, and the flame-retardant layer is a low-smoke halogen-free flame-retardant polyolefin protective layer; the thickness of aramid fiber reinforced layer is greater than 0.3mm, and the thickness of low smoke zero halogen flame retardant polyolefin sheath layer is greater than 1.8 mm. The utility model has the advantages that: the optical cable has flame retardant property, does not generate halogen under the condition of external fire, has small smoke volume and ensures personal safety; due to the fact that the aramid fiber reinforced layer with ultrahigh strength and high modulus is additionally arranged, the requirement for tensile resistance of the optical cable when the aramid fiber reinforced layer is applied to a vertical shaft is met, and accordingly various flame-retardant communication optical cables meeting the technical requirements of coal mine communication are provided.

The above patents have the following disadvantages: 1. the fireproof performance and the fire resistance are poor, and the fiber core of the optical cable cannot be well protected and prevented from burning in case of fire; 2. the protection performance is poor, the fiber core in the optical cable cannot be well protected under the external pressure, and the fiber core in the optical cable is easy to break; 3. the cable is not provided with heat insulation, so that external heat cannot be isolated under the condition of fire, and the fiber core inside the cable is easily melted and damaged by high temperature. Therefore, the high-flame-retardant communication optical cable for the coal mine is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high flame-retardant communication optical cable for coal mine, which has novel design, convenient operation and good use effect, aims to improve the fire resistance and the flame retardance through a fireproof layer and a flame-retardant layer, and can well protect the optical cable fiber core and prevent burning when encountering fire; the protective layer and the protective sponge can improve the protection performance, and can well protect the fiber core in the optical cable under the external pressure to prevent the fiber core in the optical cable from being broken; through the insulating layer, can have the heat-proof quality, under the condition of conflagration, can completely cut off the heat of external world, prevent to cause the inside fibre core of optical cable to receive high temperature and melt the damage.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of high fire-retardant communication optical cable for coal mine, including the cable body, the inside center interlude of cable body installs the enhancement core, it has optic fibre to strengthen the core periphery around having inlayed, the inside embedding of optic fibre has the fine line, it installs the protection sponge to strengthen core and the outside all parcel of optic fibre, the outer parcel of protection sponge is provided with the inoxidizing coating, the outside parcel of inoxidizing coating has the insulating layer, the outside compound fire-retardant layer of insulating layer, the outside compound parcel of fire-retardant layer has the flame retardant coating.

Optionally, the interior of the fireproof layer is formed by mixing and compounding flame-retardant lime and quartz fiber.

Optionally, the flame-retardant layer is formed by interweaving and compounding flame-retardant acrylic fibers and tencel fibers.

Optionally, the protective layer is formed by compounding epoxy resin and carbon fibers, and the epoxy resin is wrapped, covered and coated on two sides of the carbon fibers.

Optionally, the heat insulation layer is filled with heat insulation flame retardant coolant.

The utility model has the advantages as follows:

1. the utility model relates to a novelty, be convenient for operation and excellent in use effect, through being equipped with flame retardant coating and fire-retardant layer, the flame retardant coating is with the material layer that fire-retardant lime and quartz fiber are main raw materials, and quartz fiber is by the fibre that high-purity silica and natural quartz crystal made. Has heat resistance, corrosion resistance and flexibility. The solid quartz has high strength retention rate at high temperature, stable size, thermal shock resistance, chemical stability, light transmittance and electrical insulation, keeps certain characteristics and performances of the solid quartz, is an excellent high-temperature resistant material, has strong fireproof performance and fire barrier property for flame-retardant lime and quartz fibers, is formed by interweaving and compounding flame-retardant acrylic fibers and tencel fibers, is prepared by treating gel-state wet tows or finished yarns with flame retardants, and is made into fibers from organic or inorganic compounds containing phosphorus, nitrogen, boron, antimony, halogen and the like, has super-strong flame retardance, takes natural plant fibers as raw materials, has various excellent performances of natural fibers and synthetic fibers, forms a flame-retardant layer with the flame-retardant acrylic fibers and the tencel fibers, has certain flame retardance, and can improve the fireproof performance and the flame retardance, the fiber core of the optical cable can be well protected and the combustion can be prevented when a fire disaster occurs.

2. The utility model discloses a be equipped with inoxidizing coating and protection sponge, the inoxidizing coating is wrapped up the cover by epoxy to the carbon fiber and is scribbled and glue and constitute, and epoxy has very strong thermosetting and corrosion resistance. The carbon fiber is high-strength high-modulus fiber with carbon content of more than 90 percent, is high-temperature resistant at the head of all chemical fibers, is prepared by taking acrylic fiber and viscose fiber as raw materials and carrying out high-temperature oxidation carbonization. Carbon fibers with extremely high tensile strength are presoaked by epoxy resin to form a composite reinforced material (unidirectional continuous fibers); the epoxy resin adhesive is adhered to a structure to be reinforced along the tension direction or the direction perpendicular to the crack direction to form a new composite body, and a protective layer is manufactured and compounded on a cable body to reinforce the cable body, so that the toughness strength of the cable body can be improved, the cable body is prevented from being deformed, cracked and faulted, when the cable body is subjected to external pressure, the protective layer is improved in toughness strength to protect, the protective sponge inside the cable body absorbs and buffers the external pressure to protect the fiber core inside the optical cable, and therefore the protection performance can be improved.

3. The utility model discloses a be equipped with the insulating layer, the inside thermal-insulated fire-retardant coolant liquid of having annotated of insulating layer, when the cable body external world has the high temperature heat, the inside thermal-insulated fire-retardant coolant liquid of insulating layer can absorb the cooling to its heat, carry out the separation to its heat, and when the flame retardant coating and the fire-retardant layer of the cable body break, the inside thermal-insulated fire-retardant coolant liquid of insulating layer will be because of its outflow, carry out the separation to the naked light and put out, thus, can have the heat-proof quality, under the condition of conflagration, can completely cut off the heat in the external world, prevent to cause the inside fibre core of optical cable to receive high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a high flame-retardant communication optical cable for coal mines according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a fire-retardant layer of a high fire-retardant communication optical cable for coal mine according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a flame retardant layer of a high flame retardant communication optical cable for coal mine according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a protective layer of a high flame-retardant communication optical cable for coal mine according to an embodiment of the present invention;

fig. 5 is the utility model discloses a thermal-protective layer schematic structure of high fire-retardant communication optical cable for coal mine.

In the figure: 1. a reinforcing core; 2. a fire barrier layer; 3. a cable body; 4. a flame retardant layer; 5. fiber lines; 6. a thermal insulation layer; 7. a protective layer; 8. a protective sponge; 9. an optical fiber; 10. flame-retardant lime; 11. quartz fibers; 12. flame-retardant acrylic fibers; 13. tencel fiber; 14. an epoxy resin; 15. carbon fibers; 16. a heat-insulating flame-retardant cooling liquid.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The high flame-retardant communication optical cable for coal mines according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 5.

Referring to fig. 1, an embodiment of the utility model provides a high flame retardant communication optical cable for coal mine, including the cable body 3, the cable body 3 inside center alternates installs the reinforcement core 1, the periphery of reinforcement core 1 has around wearing to inlay has optic fibre 9, optic fibre 9 is inside to be embedded with optic fibre 5, the reinforcement core 1 and the optic fibre 9 outside all wraps up and installs protection sponge 8, protection sponge 8 skin parcel is provided with protective layer 7, protective layer 7 outside is wrapped up has insulating layer 6, insulating layer 6 outside compound flame retardant layer 4, flame retardant layer 4 outside compound wraps up has flame retardant coating 2, can improve fire proofness and fire resistance, can be fine protection optical cable fibre core and prevent burning when meetting the conflagration, and improve protective property, under the external pressure, can be fine protection optical cable fibre core inside, prevent optical cable fibre core fracture inside, still have the heat-proof quality, under the condition of conflagration, can completely cut off external heat, prevent to cause the inside fibre core of optical cable to receive high temperature and melt the damage.

Referring to fig. 2, the fire-retardant layer 2 is formed by mixing and compounding fire-retardant lime 10 and quartz fiber 11, and the fire-retardant layer 2 is used for improving fire resistance and fire retardance and protecting the fiber core of the optical cable and preventing burning in case of fire.

Referring to fig. 3, the flame retardant layer 4 is formed by interweaving and compounding flame retardant acrylic fibers 12 and tencel fibers 13, and the flame retardant layer 4 is used for improving fire resistance and flame retardance and protecting the fiber core of the optical cable and preventing burning when a fire disaster occurs.

Referring to fig. 4, the protective layer 7 is formed by compounding epoxy resin 14 and carbon fiber 15, the epoxy resin 14 is coated on two sides of the carbon fiber 15, the protective layer 7 is used for improving the protection performance, and can well protect the fiber core inside the optical cable and prevent the fiber core inside the optical cable from being broken under the external pressure.

Referring to fig. 5, the heat insulation layer 6 is filled with a heat insulation flame retardant coolant 16, and the heat insulation layer 6 is used for having heat insulation property, so that in case of fire, external heat can be insulated, and the fiber core inside the optical cable is prevented from being melted and damaged due to high temperature.

The embodiment of the utility model provides a high fire-retardant communication optical cable is used in colliery, during the use, through being equipped with flame retardant coating 2 and fire-retardant layer 4, flame retardant coating 2 is with the material layer that fire-retardant lime 10 and quartz fiber 11 are the main raw materials, and quartz fiber 11 is by the fibre that high-purity silica and natural quartz crystal made. Has heat resistance, corrosion resistance and flexibility. The solid quartz has the advantages of high strength retention rate at high temperature, stable size, thermal shock resistance, chemical stability, light transmittance and good electrical insulation, keeps certain characteristics and performances of the solid quartz, is an excellent high-temperature resistant material, has very strong fireproof performance and fire barrier property for flame-retardant lime 10 and quartz fiber 11, is formed by interweaving and compounding flame-retardant acrylic fiber 12 and tencel fiber 13, is prepared by processing gel-state wet tow or finished yarn by using flame retardant for the flame-retardant acrylic fiber 12, is prepared by carrying out fiber on organic or inorganic compounds containing phosphorus, nitrogen, boron, antimony, halogen and the like, has super-strong flame retardance, is prepared by using natural plant fiber as raw material for the tencel fiber 13, has various excellent performances of natural fiber and synthetic fiber, and has certain flame retardance when the flame-retardant acrylic fiber 12 and the tencel fiber 13 form the flame-retardant layer 4, so that the flame retardance and flame retardance can be improved, the fiber core of the optical cable can be well protected and combustion can be prevented when a fire disaster occurs; by arranging the protective layer 7 and the protective sponge 8, the protective layer 7 is formed by coating, covering and adhering the carbon fibers 15 with the epoxy resin 14, and the epoxy resin 14 has strong thermosetting property and corrosion resistance. The carbon fiber 15 is a high-strength high-modulus fiber with carbon content of more than 90%, is a high-temperature resistant fiber belonging to all chemical fibers, is prepared by using acrylic fibers and viscose as raw materials and performing high-temperature oxidation and carbonization. Carbon fibers 15 with extremely high tensile strength are presoaked with epoxy resin 14 to form a composite reinforcing material (unidirectional continuous fibers); the epoxy resin 14 adhesive is adhered to a structure to be reinforced along the tension direction or the direction vertical to the crack direction to form a new complex body, and a protective layer 7 is manufactured and is used for being compounded on the cable body 3 to reinforce the cable body 3, so that the toughness strength of the cable body 3 can be improved, the cable body 3 is prevented from being deformed, cracked and faulted, when the cable body 3 is subjected to external pressure, the protective layer 7 is used for improving the toughness strength to carry out protection, and the protective sponge 8 in the cable body 3 is used for absorbing and buffering the external pressure to protect the fiber core in the optical cable, so that the protection performance can be improved, the fiber core in the optical cable can be well protected under the external pressure, and the fiber core in the optical cable is prevented from being broken; through being equipped with insulating layer 6, insulating layer 6 inside is annotated has thermal-insulated fire-retardant coolant liquid 16, when 3 external high temperature heats of cable body, the thermal-insulated fire-retardant coolant liquid 16 of insulating layer 6 inside can absorb the cooling to its heat, carry out the separation to its heat, and when the flame retardant coating 2 of cable body 3 and fire-retardant coating 4 broke, the thermal-insulated fire-retardant coolant liquid 16 of insulating layer 6 inside will be because of its outflow, carry out the separation to the naked light and put out, so, can have the heat-proof quality, under the condition of conflagration, can completely cut off external heat, prevent to cause the inside fibre core of optical cable to receive high temperature and melt the damage.

It should be noted that, the utility model relates to a high fire-retardant communication optical cable for coal mine, including strengthening core 1, flame retardant coating 2, the cable body 3, fire-retardant layer 4, fine line 5, insulating layer 6, protective layer 7, protection sponge 8, optic fibre 9, fire-retardant lime 10, quartz fiber 11, fire-retardant acrylic fiber 12, tencel fibre 13, epoxy 14, carbon fiber 15, thermal-insulated fire-retardant coolant liquid 16, above-mentioned component is the prior art product, by the needs of using of technical staff in the field, select, install and accomplish the debugging operation of component, ensure that each component homoenergetic normally works, the part is general standard component or the part that technical staff in the field knows, its structure and principle all can be known or can be known through conventional experimental method for this technical staff, the applicant does not do specific restriction here.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a high fire-retardant communication optical cable for coal mine which characterized in that: including the cable body (3), the inside center interlude of cable body (3) is installed and is strengthened core (1), it has optic fibre (9) to strengthen core (1) periphery around the interlude, optic fibre (9) inside embedding has optic fibre (5), it all wraps up and installs protection sponge (8) to strengthen core (1) and optic fibre (9) outside, protection sponge (8) outer parcel is provided with inoxidizing coating (7), inoxidizing coating (7) outside parcel has insulating layer (6), outside compound fire-retardant layer (4) of insulating layer (6), fire-retardant layer (4) outside compound parcel has flame retardant coating (2).

2. The high flame retardant communication optical cable for coal mine according to claim 1, wherein: the interior of the fireproof layer (2) is formed by mixing and compounding flame-retardant lime (10) and quartz fiber (11).

3. The high flame retardant communication optical cable for coal mine according to claim 1, wherein: the flame-retardant layer (4) is formed by interweaving and compounding flame-retardant acrylic fibers (12) and tencel fibers (13).

4. The high flame retardant communication optical cable for coal mine according to claim 1, wherein: the protective layer (7) is formed by compounding epoxy resin (14) and carbon fibers (15), and the epoxy resin (14) is wrapped, covered and stuck on two sides of the carbon fibers (15).

5. The high flame retardant communication optical cable for coal mine according to claim 1, wherein: and heat-insulating flame-retardant cooling liquid (16) is injected into the heat-insulating layer (6).