CN215577765U - Novel environment-friendly high-flame-retardant carbon fiber woven flexible fireproof cable - Google Patents
Novel environment-friendly high-flame-retardant carbon fiber woven flexible fireproof cable Download PDFInfo
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- CN215577765U CN215577765U CN202122096107.9U CN202122096107U CN215577765U CN 215577765 U CN215577765 U CN 215577765U CN 202122096107 U CN202122096107 U CN 202122096107U CN 215577765 U CN215577765 U CN 215577765U
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Abstract
The utility model discloses a novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable which is sequentially provided with a conductor insulation wire core, a filler, an environment-friendly high-flame-retardant belting layer, a braided fireproof protection shielding layer, an isolation layer and an outer protective layer from inside to outside; the conductor, the first insulating layer, the second insulating layer and the moisture-proof color separation layer are sequentially arranged on the conductor insulating wire core from inside to outside; the number of the conductor insulation wire cores is 2-4, and the filler is arranged between the conductor insulation wire cores. The utility model can be widely applied to places with very high public fire protection and fire protection requirements and strong electromagnetic radiation interference, in particular to automatic safe fire protection systems and emergency power supply systems of metallurgy, subway tunnels, stations, airports, power stations, ships, high-rise buildings and the like, can obviously improve the safety, the usability and the functionality, and meets the high-safety requirements of special industries and special fields. The utility model improves the original product innovatively, and is an updated product of the traditional fireproof cable.
Description
The technical field is as follows:
the utility model relates to a novel cable structure, in particular to a novel environment-friendly high-flame-retardant carbon fiber woven flexible fireproof cable, and belongs to the technical field of special fireproof cables.
Background art:
the electricity utilization safety is a worldwide problem, and especially when a fire accident occurs, how to leave sufficient time to ensure people to escape safely, reduce accident loss, ensure safe electrification of a line and smooth signals plays a vital role; in addition, how to improve the fire safety level of key projects, important places, special fields and the like is pursued by people in the cable industry. The fireproof cable is widely used in the fields of commercial buildings, industrial facilities, residential houses and the like at present, is mainly used for fire-fighting emergency, can ensure that electric power and control lines are not short-circuited within a certain time after a fire disaster occurs, and provides a powerful guarantee for fire-fighting rescue.
The conventional fireproof cable is an MI type mineral insulated cable (namely BTT fire-resistant copper pipe wiring) invented in the 90 s of the last century; one is a fire-resistant insulated cable which is formed by coating a conductor with a strip material such as a mica tape to form a fire-resistant layer and forming an insulating layer by the fire-resistant layer and a high polymer material; still another is a flexible fire-resistant cable of the fire-resistant metal insulation cover type. The existing fireproof cables generally have the following problems and difficulties: 1. the installation is complex; 2. the construction intermediate joints are more; 3. poor bending properties; 4. expensive manufacturing equipment and complex process; 5. large terminal pressure drop in case of fire, etc.; 6. the welding seam is easy to crack when the movable bending is carried out; 7. the resource waste is large and the cost is high; 8. the electrical performance is unstable, and the breakdown rate is high; 9. large outside diameter, heavy weight, etc.
The utility model has the following contents:
the technical problem to be solved by the utility model is as follows: in order to solve the problems of the existing fireproof and fire-resistant cable, improve the safety and usability of the product, enable the product to not only reach the relevant standards of the cable, but also reach the three items of check of the safe fire-resistant grade BS6387 performance requirement of cable integrity maintenance under flame condition, and keep the production process, electrical performance requirement, environmental performance requirement and cable installation and laying consistent with the common environmental-friendly cable, the novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable is provided, and has the performances of fire resistance, corrosion resistance, radiation resistance, high strength, high-efficiency shielding, excellent flexibility, impact resistance and the like, the production process is simple, the cable can be produced in any length section, and in any voltage grade, the specification is various, the installation and the laying are convenient, and the environmental performance meets the EU RoHS instruction.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
a novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable is sequentially provided with a conductor insulation wire core, a filler, an environment-friendly high-flame-retardant belting layer, a braided fireproof protection shielding layer, an isolation layer and an outer protection layer from inside to outside; the conductor, the first insulating layer, the second insulating layer and the moisture-proof color separation layer are sequentially arranged on the conductor insulating wire core from inside to outside; the number of the conductor insulation wire cores is 2-4, and the filler is arranged between the conductor insulation wire cores.
The conductor is formed by stranding soft copper wires and is a 2-class or 5-class round soft copper stranded conductor.
The first insulating layer is a calcined mineral insulating layer, the second insulating layer is a ceramic fireproof and fireproof composite belt, and the first insulating layer and the second insulating layer form a double-insulation structure.
The moisture-proof color separation layer is a cross-linked polyethylene moisture-proof color separation layer.
The filler is a fireproof alkali-free filler material.
The environment-friendly high-flame-retardant wrapping tape layer is a low-smoke halogen-free high-flame-retardant rubber coated glass fiber tape.
The woven fireproof protection shielding layer is formed by weaving high-fire-resistant carbon fibers, and the temperature resistance level is more than or equal to 1500 ℃.
The isolation layer is a novel halogen-free low-smoke high-flame-retardant oxygen isolation layer, and the oxygen index is more than or equal to 46.
The outer protective layer is made of novel high-flame-retardant halogen-free low-smoke polyolefin material, and the oxygen index is more than or equal to 46.
The technical innovation points of the utility model are as follows:
1. the conductor is formed by stranding annealed copper wires (adopting 2-class or 5-class stranded conductors), and has the advantages of softness, large current carrying capacity and the like.
2. Double-insulation structure: the first insulating layer is a glue coated tape of synthetic calcined mineral, is a nano-scale inorganic material, has a temperature resistance level of 1050 ℃, removes crystal water and impurities with loss of voltage and temperature resistance at high temperature, and generates SiO in the combustion process2The compact conductor protective shell with the main structure effectively improves the fire resistance and has the performances of corrosion resistance, high insulation and the like.
The second insulating layer is a multilayer ceramic fireproof fire-resistant composite tape wrapping layer, has good flexibility and elasticity in a normal state, good mechanical property, difficult breaking and excellent electrical property, can replace a mica tape in a low-voltage cable for use, and has good high and low temperature resistance, and the normal use temperature is-60 ℃ to +200 ℃; the ceramic shell can be quickly fired into a complete and hard ceramic shell at a high temperature of 1000-3000 ℃ or under flame, does not melt, shrink or drip at the high temperature, and has excellent fire-insulating and heat-insulating effects; the density is small, no water or moisture is absorbed, the storage period is long, and drying treatment is not needed; the processing is simple, the product can be wrapped or longitudinally wrapped, the tightness and the sealing performance are better than those of a mica tape, and the production cost is low; the smoke is low in smoke and halogen free, does not contain phosphorus and nitrogen, does not contain heavy metal, has the smoke toxicity safety level reaching the highest safety level ZA1 level of a high polymer material, does not cause secondary damage to human bodies, and has environmental protection performance in accordance with the EU RoHS instruction; the fireproof and fire-resistant cable produced by adopting the ceramic fireproof and fire-resistant composite belt has excellent fire resistance, and the fire resistance grade can meet the following standard requirements: the CWZ highest fire-resistant grade of the first BS6387 and the BS 8491 has main technical indexes or economic indexes of fire-resistant class A standard GB/T31247B 1 of IEC 60331 standard, GB/T19216 standard and GB/T19666 and 2019 standard, and fourth GA 306.2.
3. The insulating moisture-proof color separation layer is made of a cross-linked polyethylene material, and plays a role in radial water resistance after encountering fire, provides a good barrier for excellent insulating performance, and plays a role in color separation;
4. the filler is made of fireproof alkali-free filler material, and has good fireproof and high flame retardant properties.
5. The environment-friendly high-flame-retardant belting layer consists of low-smoke halogen-free high-flame-retardant rubber coated glass fiber tapes with high temperature resistance, heat preservation, heat insulation, fire prevention, flame retardance, corrosion resistance, aging resistance, weather resistance and high strength.
6. The woven fireproof protection shielding layer is woven by high-fire-resistance carbon fibers, the temperature resistance level of the woven fireproof protection shielding layer reaches more than 1500 ℃, the temperature resistance level of the woven fireproof protection shielding layer reaches more than 3000 ℃ when the woven fireproof protection shielding layer is not in contact with air and an oxidant, and the woven fireproof protection shielding layer has outstanding heat resistance performance; the oxygen index of the novel halogen-free low-smoke high-flame-retardant oxygen-insulating layer can reach more than 46, and the carbon fiber has higher temperature resistance level when not in contact with air and oxidant, so that the carbon fiber can be ensured to reach more excellent temperature resistance.
7. The isolation layer is a novel halogen-free low-smoke high-flame-retardant oxygen isolation layer, and the oxygen index is more than or equal to 46; the outer protective layer is made of high-flame-retardant halogen-free low-smoke polyolefin material with oxygen index not less than 46, and the isolation layer and the outer protective layer form an isolation outer protection double barrier.
The utility model has the following positive beneficial effects:
the utility model combines and compensates organic high-insulation materials with excellent electrical performance and environment-friendly inorganic fireproof materials, adopts flexible high-strength fireproof composite materials, and solves the problems of the traditional mineral insulation fireproof cable that: a. the installation is complex; b. the construction intermediate joints are more; c. poor bending properties; d. expensive manufacturing equipment and complex process; e. the terminal pressure drop is large under the fire condition; f. unstable electrical performance, high breakdown rate and the like. Simultaneously also solved the defect of ordinary flexible mineral insulation fireproof cable like: a. the welding seam is easy to crack when the steel plate is bent; b. thick outer diameter, heavy weight and the like. The utility model is innovatively improved, is an updated product of the traditional fireproof cable, and enterprises do not need to introduce new production equipment, so that the production cost is lower.
The utility model belongs to the technical field of special fireproof cables, can be widely applied to places with very high public fire protection and fire protection requirements and strong electromagnetic radiation interference, and particularly to an automatic safety fire protection system and an emergency power supply system of metallurgy, subway tunnels, stations, airports, power stations, ships, high-rise buildings and the like, can obviously improve the safety, usability and functionality of the system, and meets the high-safety requirements of special industries and special fields.
The utility model innovatively improves the original product, and is a new generation product of the traditional fireproof cable as a novel environment-friendly high-flame-retardant carbon fiber woven flexible fireproof cable for electric energy and information transmission.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
the utility model will be further explained and explained with reference to the drawings and the specific embodiments:
example 1: referring to fig. 1, a novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable is sequentially provided with a conductor insulation wire core, a filler 5, an environment-friendly high-flame-retardant belting layer 6, a braided fireproof protection shielding layer 7, an isolation layer 8 and an outer protective layer 9 from inside to outside; the conductor insulation wire core is sequentially provided with a conductor 1, a first insulation layer 2, a second insulation layer 3 and a moisture-proof color separation layer 4 from inside to outside; the number of the conductor insulation wire cores is 4, and fillers 5 are arranged among the 4 conductor insulation wire cores.
The conductor 1 is formed by stranding soft copper wires and is a 2-class or 5-class round soft copper stranded conductor.
The first insulating layer 2 is a calcined mineral insulating layer, the second insulating layer 3 is a ceramic fireproof and fireproof composite belt, and the first insulating layer 2 and the second insulating layer 3 form a double-insulation structure.
The moisture-proof color separation layer 4 is a cross-linked polyethylene moisture-proof color separation layer.
The filler 5 is a fireproof alkali-free filler material.
The environment-friendly high-flame-retardant wrapping tape layer 6 is a low-smoke halogen-free high-flame-retardant rubber coated glass fiber tape.
The woven fireproof protection shielding layer 7 is woven by high-fire-resistance carbon fibers, and the temperature resistance level is more than or equal to 1500 ℃.
The isolation layer 8 is a novel halogen-free low-smoke high-flame-retardant oxygen isolation layer, and the oxygen index is more than or equal to 46.
The outer protective layer 9 is made of novel high flame-retardant halogen-free low-smoke polyolefin material, and the oxygen index is more than or equal to 46.
In the cable structure of the embodiment, the conductor 1 is formed by twisting annealed copper wires (2-type or 5-type twisted conductors), and has the advantages of being soft, large in load current and the like.
The first insulating layer 2 is a glue coated tape of synthetic calcined mineral, is a nano-scale inorganic material, has a temperature resistance level of 1050 ℃, removes crystal water and impurities with loss of voltage and temperature resistance at high temperature, and generates SiO in the combustion process2The compact conductor protective shell with the main structure effectively improves the fire resistance and has the performances of corrosion resistance, high insulation and the like.
The second insulating layer 3 is a multilayer ceramic fireproof fire-resistant composite tape wrapping layer, has good flexibility and elasticity in a normal state, good mechanical property, difficult breaking and excellent electrical property, can replace a mica tape in a low-voltage cable, and has good high and low temperature resistance, and the normal use temperature is-60 ℃ to +200 ℃; the ceramic shell can be quickly fired into a complete and hard ceramic shell at a high temperature of 1000-3000 ℃ or under flame, does not melt, shrink or drip at the high temperature, and has excellent fire-insulating and heat-insulating effects; the density is small, no water or moisture is absorbed, the storage period is long, and drying treatment is not needed; the processing is simple, the product can be wrapped or longitudinally wrapped, the tightness and the sealing performance are better than those of a mica tape, and the production cost is low; the smoke is low in smoke and halogen free, does not contain phosphorus and nitrogen, does not contain heavy metal, has the smoke toxicity safety level reaching the highest safety level ZA1 level of a high polymer material, does not cause secondary damage to human bodies, and has environmental protection performance in accordance with the EU RoHS instruction; the fireproof and fire-resistant cable produced by adopting the ceramic fireproof and fire-resistant composite belt has excellent fire resistance, and the fire resistance grade can meet the following standard requirements: the CWZ highest fire-resistant grade of the first BS6387 and the BS 8491 has main technical indexes or economic indexes of fire-resistant class A standard GB/T31247B 1 of IEC 60331 standard, GB/T19216 standard and GB/T19666 and 2019 standard, and fourth GA 306.2.
Wherein the first insulating layer 2 and the second insulating layer 3 constitute a double insulating structure.
The insulating moisture-proof color separation layer 4 is made of a cross-linked polyethylene material, and plays a role in radial water resistance after encountering fire, provides a good barrier for excellent insulating performance, and plays a role in color separation;
the filler 5 is made of fireproof alkali-free filler material, and has good fireproof and high flame retardant properties.
The environment-friendly high-flame-retardant belting layer 6 is composed of low-smoke halogen-free high-flame-retardant rubber coated glass fiber tapes with high temperature resistance, heat preservation, heat insulation, fire prevention, flame retardance, corrosion resistance, aging resistance, weather resistance and high strength.
The woven fireproof protection shielding layer 7 is woven by high-fire-resistance carbon fibers, the temperature resistance level of the woven fireproof protection shielding layer is more than 1500 ℃, the temperature resistance level of the woven fireproof protection shielding layer is more than 3000 ℃ when the woven fireproof protection shielding layer is not in contact with air and an oxidant, the woven fireproof protection shielding layer has outstanding heat resistance, compared with other materials, the strength of the carbon fibers begins to be reduced when the temperature of the carbon fibers is more than 1500 ℃, the fiber strength is higher along with the increase of the temperature, the modulus of the carbon fibers is more than 395 Gpa, and the carbon fibers also have the advantages of excellent high temperature resistance, friction resistance, electric conduction, heat conduction, corrosion resistance, high strength, large elastic modulus and the like, and the woven fireproof protection shielding layer can be used as shielding at the same time by utilizing the electric conductivity of the carbon fibers; the oxygen index of the novel halogen-free low-smoke high-flame-retardant oxygen-insulating layer can reach more than 46, and the carbon fiber has higher temperature resistance level when not in contact with air and oxidant, so that the carbon fiber can be ensured to reach more excellent temperature resistance.
The isolation layer 8 is a novel halogen-free low-smoke high-flame-retardant oxygen isolation layer, and the oxygen index is more than or equal to 46; the outer protective layer 9 is made of high-flame-retardant halogen-free low-smoke polyolefin material with oxygen index not less than 46, and the isolation layer 8 and the outer protective layer 9 form an isolation outer protective double barrier.
Example 2: the structure of this embodiment is basically the same as that of embodiment 1, and the same points are not repeated, except that: the number of the conductor insulation wire cores is 3, and fillers 5 are arranged among the 3 conductor insulation wire cores.
Example 3: the structure of this embodiment is basically the same as that of embodiment 1, and the same points are not repeated, except that: the number of the conductor insulation wire cores is 2, and a filler 5 is arranged between the 2 conductor insulation wire cores.
The utility model belongs to the technical field of special fireproof cables, can be widely applied to places with very high public fire protection and fire protection requirements and strong electromagnetic radiation interference, and particularly to an automatic safety fire protection system and an emergency power supply system of metallurgy, subway tunnels, stations, airports, power stations, ships, high-rise buildings and the like, can obviously improve the safety, usability and functionality of the system, and meets the high-safety requirements of special industries and special fields.
The utility model innovatively improves the original product, and is a new generation product of the traditional fireproof cable as a novel environment-friendly high-flame-retardant carbon fiber woven flexible fireproof cable for electric energy and information transmission.
Claims (9)
1. The utility model provides a novel flexible fireproof cable is woven to environmental protection high flame retardant carbon fiber which characterized in that: the novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable is sequentially provided with a conductor insulation wire core, a filler (5), an environment-friendly high-flame-retardant belting layer (6), a braided fireproof protection shielding layer (7), an isolation layer (8) and an outer protective layer (9) from inside to outside; the conductor insulation wire core is sequentially provided with a conductor (1), a first insulation layer (2), a second insulation layer (3) and a moisture-proof color separation layer (4) from inside to outside; the number of the conductor insulation wire cores is 2-4, and the filler (5) is arranged between the conductor insulation wire cores.
2. The novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable according to claim 1, characterized in that: the conductor (1) is formed by stranding soft copper wires and is a 2-class or 5-class round soft copper stranded conductor.
3. The novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable according to claim 1, characterized in that: the first insulating layer (2) is a calcined mineral insulating layer, the second insulating layer (3) is a ceramic fireproof and fireproof composite tape, and the first insulating layer (2) and the second insulating layer (3) form a double-insulation structure.
4. The novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable according to claim 1, characterized in that: the moisture-proof color separation layer (4) is a cross-linked polyethylene moisture-proof color separation layer.
5. The novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable according to claim 1, characterized in that: the filler (5) is a fireproof alkali-free filler material.
6. The novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable according to claim 1, characterized in that: the environment-friendly high-flame-retardant wrapping tape layer (6) is a low-smoke halogen-free high-flame-retardant gluing glass fiber tape.
7. The novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable according to claim 1, characterized in that: the woven fireproof protection shielding layer (7) is woven by high-fire-resistance carbon fibers, and the temperature resistance level is more than or equal to 1500 ℃.
8. The novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable according to claim 1, characterized in that: the isolation layer (8) is a novel halogen-free low-smoke high-flame-retardant oxygen isolation layer, and the oxygen index is more than or equal to 46.
9. The novel environment-friendly high-flame-retardant carbon fiber braided flexible fireproof cable according to claim 1, characterized in that: the outer protective layer (9) is made of novel high-flame-retardant halogen-free low-smoke polyolefin material, and the oxygen index is more than or equal to 46.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122096107.9U CN215577765U (en) | 2021-09-01 | 2021-09-01 | Novel environment-friendly high-flame-retardant carbon fiber woven flexible fireproof cable |
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| CN202122096107.9U CN215577765U (en) | 2021-09-01 | 2021-09-01 | Novel environment-friendly high-flame-retardant carbon fiber woven flexible fireproof cable |
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| CN202122096107.9U Active CN215577765U (en) | 2021-09-01 | 2021-09-01 | Novel environment-friendly high-flame-retardant carbon fiber woven flexible fireproof cable |
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- 2021-09-01 CN CN202122096107.9U patent/CN215577765U/en active Active
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