CN105810312A - Inorganic compound oxygen insulation fire resistance band composite insulation fire resistance wire - Google Patents
Inorganic compound oxygen insulation fire resistance band composite insulation fire resistance wire Download PDFInfo
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- CN105810312A CN105810312A CN201410841503.1A CN201410841503A CN105810312A CN 105810312 A CN105810312 A CN 105810312A CN 201410841503 A CN201410841503 A CN 201410841503A CN 105810312 A CN105810312 A CN 105810312A
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Abstract
The invention discloses an inorganic compound oxygen insulation fire resistance band composite insulation fire resistance wire. The fireproof wire of the invention consists of a conductor and a fire resistance layer and an insulation layer which successively wrap on the outer layer; the conductor is made of annealing coalesced copper; the insulation layer is made of smokeless halogen-free high flame retardation polyolefin; and the fire resistance layer is made of the inorganic compound oxygen insulation fireproof band. Compared with the prior art, the inorganic compound oxygen insulation fire resistance band composite insulation fireproof wire is smokeless and halogen free, good in flame retardation effect, long in usage life, safe and reliable, easy in installation and maintenance, etc.
Description
Technical field
The present invention relates to a kind of fire-resistant wires, especially relate to the fire-resistant wires of a kind of inorganic compound oxygen barrier fire resistant belt compound inslation.
Background technology
Along with developing by leaps and bounds of China's economic construction, electric power had become the pillar that national economy more relies on already.Along with the development of power industry, power supplying and generating enterprises increasing, and modern age factory maximization, the high stratification of urban architecture, and the requirement of the city appearance of the city, environmental conservation and specific safety, the application making power cable is increasingly extensive.Cable Firing Accident, is one of catastrophic failure in power system.According to relevant statistics, in the electrical fire accident of the U.S., electric wire fire incident just accounts for 30.5%.The business surveies such as electric power, iron and steel, petrochemistry, papermaking are found have the unit of 78% that cable fire occurred by Japan, and the accident that wherein extent of injury is bigger accounts for 40%.According to incompletely statistics, nearly ten years, the major accident that China causes disaster because ignition of cable spreads exceedes hundred, and the loss that the cable fire of more than 70% causes is very serious, and wherein the fire incident of 40% causes especially big loss.Adding up to burn cable myriametre more than 40, restoration and reconstruction work cost length big, time-consuming after accident, the loss only sending out delivery less just reaches more than 100 hundred million yuan.Cable fire have spread fast, the intensity of a fire violent, rob and help out of distress, lose big, to repair difficulty feature.(1) amount of being fuming is big and combustion product is poisonous；(2) Initial Stage of Fire is difficult to find；(3) place is complicated, is unfavorable for fire attack；(4) piping shaft space is many, encourages fire spreading；(5) loss is serious, and coverage is wide.
Analyze fire and cause the main cause of personnel death, suffocate, poisoning cause that 608 people are dead, add up to and account for the 56.5% of fire fatality sum.The a large amount of toxic and harmfuls produced during cable fire, are cause personnel death, equipment by undermining main cause that is serious due to smog and that make personnel not withdraw in time.
If electric wire material therefor is melted drippage when burning, it is more easy to and makes fire spread, aggravate the condition of a fire, also make material expose the surface accelerated combustion made new advances.
Fire-resistant wires common at present, when client is not distinctly claimed, generally adopts PVC to do insulating barrier, and better use has the PVC of common flame-retarding characteristic, and flame retardant coating generally uses synthetic mica tape, and what also have uses gold mica tape.Material used by this kind of fire-resisting cable does not reach the performance requirement of low smoke halogen-free fire retardant fire resistant electric wire at all.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and the fire-resistant wires of a kind of long service life, safe and reliable, installation and repairing convenient inorganic compound oxygen barrier fire resistant belt compound inslation is provided.
The purpose of the present invention can be achieved through the following technical solutions: the fire-resistant wires of a kind of inorganic compound oxygen barrier fire resistant belt compound inslation, it is characterized in that, flame retardant coating and insulating barrier that this fire-resistant wires is coated with successively by conductor and outer layer thereof form, the material of described conductor is annealing oxygen-free copper, what described insulating barrier adopted is that smokeless halogen-free high fire-retardance polyolefin is made, and what described flame retardant coating adopted is that inorganic compound oxygen barrier fire resistant belt is made.
Described annealing oxygen-free copper adopts Lian Lalian to move back mode or pot annealing mode is made.Lian Lalian moves back mode or pot annealing mode is conventional several annealing way.
Described smokeless halogen-free high fire-retardance polyolefin is made by the following method: by weight, by 100 parts of polyolefin blend resins, 80 parts of flame retardant fillers, 10 parts of antioxidant, 10 parts of inhibitor of being fuming, 4 parts of cross-linking agent ratio mix, blended, formed at 120～300 DEG C of extruding pelletizations.
Described polyolefin blend resin is that LDPE (Low Density Polyethylene) and EVA (ethene-vinyl acetate copolymer) 70:30 in mass ratio mixes, and described flame retardant filler includes aluminium hydroxide or magnesium hydroxide；Described inhibitor of being fuming includes vanadium, nickel, molybdenum, ferrum, silicon or compound nitrogen series.
Described inorganic compound oxygen barrier fire resistant belt is made by the following method: by inorganic mineral material 60wt%, silicone rubber potterySymbolMixture 35wt% and high-strength adhesive 5wt% mixes.
Described inorganic mineral material includes glass-fiber-fabric, pottery or silicone rubber, described silicone rubber ceramic mixture is silicone rubber and the ceramic mixture according to the mixing of weight ratio 50～80:20～50, described high-strength adhesive is commercially available binding agent, and its intensity reaches 4.5N/mm2。
Described annealing oxygen-free copper conductor is outer overlapping around inorganic compound oxygen barrier fire resistant belt of double-baging, and Duplication is not less than 50%.
Extrude one layer of smokeless halogen-free fire retardant polyolefin outside described inorganic compound oxygen barrier fire resistant belt lapping layer again and form insulating barrier.
High-flame retardance polyolefin cable material is generally added flame retardant filler aluminium hydroxide, magnesium hydroxide and some the appropriate antioxidant added to improve heat-resisting life by polyolefin blend resin and combines.Sometimes for the amount of being fuming reduced when it burns, it is also added into some inhibitor of being fuming, such as vanadium, nickel, molybdenum, ferrum, silicon, compound nitrogen series.Its fire retardant mechanism is: during burning, and flame retardant filler aluminium hydroxide, magnesium hydroxide, asphalitine light oil can discharge water of crystallization, absorbs amount of heat；Meanwhile, dehydration can produce a large amount of water vapour, and it can dilute imflammable gas, thus stoping burning, additionally forming one layer of not molten oxide duricrust not fired at material surface, block the passage that high polymer reacts with the hot oxygen in the external world, final material is fire-retardant, self-extinguishment.
High-flame retardance polyolefin cable material to have good anti-flammability, in formula, aluminium hydroxide, magnesium hydroxide, asphalitine light oil must have bigger loading, generally to reach more than 150 parts, and substantial amounts of inorganic combustion inhibitor is filled and will be caused that material deteriorates significantly at physical and mechanical properties, electric property and extrusion process aspect of performance.In order to solve the balance of its aspect of performance such as anti-flammability and physical mechanical, making material can fully meet the technology requirement of final utilization, conventional method has: polyolefine material is modified by one side, grafting, to improve polyolefine material polarity；It is that the surface to inorganic combustion inhibitor carries out chemical modification on the other hand, typically by coupling agent treatment.
The use of a large amount of inorganic combustion inhibitors imparts the characteristics such as High-flame retardance polyolefin cable material fire-retardant, smokeless, Halogen, low toxicity, also makes its and Halogen fire proofing non-flame resistant with other in physical and mechanical properties, electric property and processing performance etc. there are differences simultaneously.Owing to smokeless halogen-free electric wire use occasion and auxiliary products production technology thereof are different, performance requirement is also not quite similar, as, in tensile strength, elongation at break, aging temperature and index, specific volume resistance, oil resistance, scrape abrasion resistance energy, flexibility, flame-retardancy requirements etc., different cables is often laid particular stress on to some extent.In halogen-free material technology, the index more than having is restriction mutually, a kind of all-round product can not be had to meet the requirement of all above all kinds of electric wire, and ratio is more prominent: the contradiction between elongation at break and anti-flammability, the contradiction between pliability and thermal deformation and ageing properties.What material producer can accomplish can only be carry out good and bad balance between some performance on the basis meeting Essential Performance Requirements, with the electric wire that the product adaptation difference of the different trades mark requires.
When the fire-resistant wires of inorganic compound oxygen barrier fire resistant belt compound inslation of the present invention runs into naked light, the insulation of outermost smokeless halogen-free fire retardant polyolefin can play good fire retardation, the effective ground resistance of meeting is stopped the intensity of a fire and is prolonged burning along electric wire itself, the insulation of smokeless halogen-free fire retardant polyolefin simply forms ashes, melted drippage will not be there is, so that fire spread, aggravate the condition of a fire, and self will not produce naked light.After insulation forms ashes; the inorganic compound oxygen barrier fire resistant belt lapping layer exposed will not burn; meet fire and can form duricrust; define oxygen barrier layer duricrust quickly and effectively; oxygen barrier layer duricrust does not melt under the flame more than 1000 DEG C; do not drip, be guaranteed in the energising as usual of fire condition line, circuit is played firm protective effect.
Compared with prior art, the invention have the advantages that
One, smokeless halogen-free: due to insulant employing is smokeless halogen-free high fire-retardance insulant, does not melt, do not drip when meeting fire under flame, does not have smog and toxic gas produces.
Two, long service life: is inorganic compound due to the employing of flame retardant coating material, it is absent from the problem of aging of organic compound, this inorganic compound fire resistant belt not only has fire-resistant, oxygen barrier effect, and there is the insulating effect that same insulating barrier is same, even if therefore the organic material insulating barrier life-time service of outer layer is aging, the normal life-time service of electric wire also can be made.
Three, safe and reliable: inorganic compound oxygen barrier fire resistant belt lapping layer will not burn, to meet fire and can form duricrust, duricrust does not melt under the flame more than 1000 DEG C, does not drip, and is guaranteed in the energising as usual of fire condition line, circuit plays firm protective effect.
Four, installation and repairing is convenient: the electric wire of the present invention, overall dimensions is identical with normal refractory electric wire, and mounting and installation is the same with conventional flame retardant fire-resistant wires, will not increase extra installation cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of electric wire of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, a kind of fire-resistant wires of inorganic compound oxygen barrier fire resistant belt compound inslation, flame retardant coating 2 and insulating barrier 3 that this fire-resistant wires is coated with successively by conductor 1 and outer layer thereof form, the material of described conductor 1 is annealing oxygen-free copper, what described insulating barrier 2 adopted is that smokeless halogen-free high fire-retardance polyolefin is made, and what described flame retardant coating 3 adopted is that inorganic compound oxygen barrier fire resistant belt is made.Annealing oxygen-free copper conductor is outer overlapping around inorganic compound oxygen barrier fire resistant belt formation flame retardant coating 2 of double-baging, and Duplication is not less than 50%.Extrude one layer of smokeless halogen-free fire retardant polyolefin outside inorganic compound oxygen barrier fire resistant belt lapping layer again and form insulating barrier 3.
Described annealing oxygen-free copper adopts the conventional Lian Lalian mode of moving back to make.
Described smokeless halogen-free high fire-retardance polyolefin is made by the following method: by weight, by 100 parts of polyolefin blend resins, 80 parts of flame retardant fillers, 10 parts of antioxidant, 10 parts of inhibitor of being fuming, 4 parts of cross-linking agent ratio mix, blended, formed at 120～300 DEG C of extruding pelletizations.
Described polyolefin blend resin is that LDPE (Low Density Polyethylene) and EVA (ethene-vinyl acetate copolymer) 70:30 in mass ratio mixes, and described flame retardant filler includes aluminium hydroxide or magnesium hydroxide；Described inhibitor of being fuming includes vanadium, nickel, molybdenum, ferrum, silicon or compound nitrogen series.
Described inorganic compound oxygen barrier fire resistant belt is made by the following method: by inorganic mineral material 60wt%, silicone rubber potterySymbolMixture 35wt% and high-strength adhesive 5wt% mixes.
Described inorganic mineral material includes glass-fiber-fabric, pottery or silicone rubber, and described silicone rubber ceramic mixture is silicone rubber and the ceramic mixture according to weight ratio 50:20 mixing, and described high-strength adhesive is commercially available binding agent, and its intensity reaches 4.5N/mm2。
When the fire-resistant wires of inorganic compound oxygen barrier fire resistant belt compound inslation of the present invention runs into naked light, the insulation of outermost smokeless halogen-free fire retardant polyolefin can play good fire retardation, the effective ground resistance of meeting is stopped the intensity of a fire and is prolonged burning along electric wire itself, the insulation of smokeless halogen-free fire retardant polyolefin simply forms ashes, melted drippage will not be there is, so that fire spread, aggravate the condition of a fire, and self will not produce naked light.After insulation forms ashes; the inorganic compound oxygen barrier fire resistant belt lapping layer exposed will not burn; meet fire and can form duricrust; define oxygen barrier layer duricrust quickly and effectively; oxygen barrier layer duricrust does not melt under the flame more than 1000 DEG C; do not drip, be guaranteed in the energising as usual of fire condition line, circuit is played firm protective effect.
Embodiment 2
The fire-resistant wires of a kind of inorganic compound oxygen barrier fire resistant belt compound inslation, its structure is with embodiment 1.
Described annealing oxygen-free copper adopts conventional pot annealing mode to make.
Described smokeless halogen-free high fire-retardance polyolefin is made by the following method: by weight, by 100 parts of polyolefin blend resins, 80 parts of flame retardant fillers, 10 parts of antioxidant, 10 parts of inhibitor of being fuming, 4 parts of cross-linking agent ratio mix, blended, formed at 120～300 DEG C of extruding pelletizations.Described polyolefin blend resin is that LDPE (Low Density Polyethylene) and EVA (ethene-vinyl acetate copolymer) 70:30 in mass ratio mixes, and described flame retardant filler includes aluminium hydroxide or magnesium hydroxide；Described inhibitor of being fuming includes vanadium, nickel, molybdenum, ferrum, silicon or compound nitrogen series.
Described inorganic compound oxygen barrier fire resistant belt is made by the following method: by inorganic mineral material 60wt%, silicone rubber potterySymbolMixture 35wt% and high-strength adhesive 5wt% mixes.Described inorganic mineral material includes glass-fiber-fabric, pottery or silicone rubber, and described silicone rubber ceramic mixture is silicone rubber and the ceramic mixture according to weight ratio 80:20 mixing, and described high-strength adhesive is commercially available binding agent, and its intensity reaches 4.5N/mm2。
Claims (8)
1. the fire-resistant wires of an inorganic compound oxygen barrier fire resistant belt compound inslation, it is characterized in that, flame retardant coating and insulating barrier that this fire-resistant wires is coated with successively by conductor and outer layer thereof form, the material of described conductor is annealing oxygen-free copper, what described insulating barrier adopted is that smokeless halogen-free high fire-retardance polyolefin is made, and what described flame retardant coating adopted is that inorganic compound oxygen barrier fire resistant belt is made.
2. the fire-resistant wires of a kind of inorganic compound oxygen barrier fire resistant belt compound inslation according to claim 1, it is characterised in that described annealing oxygen-free copper adopts Lian Lalian to move back mode or pot annealing mode is made.
3. the fire-resistant wires of a kind of inorganic compound oxygen barrier fire resistant belt compound inslation according to claim 1, it is characterized in that, described smokeless halogen-free high fire-retardance polyolefin is made by the following method: by weight, by 100 parts of polyolefin blend resins, 80 parts of flame retardant fillers, 10 parts of antioxidant, 10 parts of inhibitor of being fuming, 4 parts of cross-linking agent ratio mix, blended, formed at 120～300 DEG C of extruding pelletizations.
4. the fire-resistant wires of a kind of inorganic compound oxygen barrier fire resistant belt compound inslation according to claim 1, it is characterized in that, described polyolefin blend resin is that LDPE and EVA 70:30 in mass ratio mixes, and described flame retardant filler includes aluminium hydroxide or magnesium hydroxide；Described inhibitor of being fuming includes vanadium, nickel, molybdenum, ferrum, silicon or compound nitrogen series.
5. the fire-resistant wires of a kind of inorganic compound oxygen barrier fire resistant belt compound inslation according to claim 1, it is characterized in that, described inorganic compound oxygen barrier fire resistant belt is made by the following method: inorganic mineral material 60wt%, silicone rubber ceramic mixture 35wt% and high-strength adhesive 5wt% are mixed.
6. the fire-resistant wires of a kind of inorganic compound oxygen barrier fire resistant belt compound inslation according to claim 5, it is characterized in that, described inorganic mineral material includes glass-fiber-fabric, pottery or silicone rubber, described silicone rubber ceramic mixture includes silicone rubber and the mixture of pottery, and the intensity of described high-strength adhesive is 4.5N/mm2。
7. the fire-resistant wires of a kind of inorganic compound oxygen barrier fire resistant belt compound inslation according to claim 1, it is characterised in that described annealing oxygen-free copper conductor is outer overlapping around inorganic compound oxygen barrier fire resistant belt of double-baging, and Duplication is not less than 50%.
8. the fire-resistant wires of a kind of inorganic compound oxygen barrier fire resistant belt compound inslation according to claim 1, it is characterised in that extrude one layer of smokeless halogen-free fire retardant polyolefin outside described inorganic compound oxygen barrier fire resistant belt lapping layer again and form insulating barrier.
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| CN201410841503.1A CN105810312A (en) | 2014-12-29 | 2014-12-29 | Inorganic compound oxygen insulation fire resistance band composite insulation fire resistance wire |
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| CN201410841503.1A CN105810312A (en) | 2014-12-29 | 2014-12-29 | Inorganic compound oxygen insulation fire resistance band composite insulation fire resistance wire |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101831095A (en) * | 2010-04-01 | 2010-09-15 | 北京富迪创业科技有限公司 | Cable sheath tube for ships and preparation method thereof |
| CN202632842U (en) * | 2012-06-27 | 2012-12-26 | 安徽龙庵电缆集团有限公司 | Cable for fire-fighting refractory environmental protection lighting at public places |
| CN103562302A (en) * | 2011-05-31 | 2014-02-05 | 普立万公司 | Thermoplastic elastomer compounds exhibiting superior compression set properties |
| CN203850014U (en) * | 2014-03-25 | 2014-09-24 | 福州通尔达电线电缆有限公司 | Low-smoke no-halogen computer cable |
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2014
- 2014-12-29 CN CN201410841503.1A patent/CN105810312A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831095A (en) * | 2010-04-01 | 2010-09-15 | 北京富迪创业科技有限公司 | Cable sheath tube for ships and preparation method thereof |
| CN103562302A (en) * | 2011-05-31 | 2014-02-05 | 普立万公司 | Thermoplastic elastomer compounds exhibiting superior compression set properties |
| CN202632842U (en) * | 2012-06-27 | 2012-12-26 | 安徽龙庵电缆集团有限公司 | Cable for fire-fighting refractory environmental protection lighting at public places |
| CN203850014U (en) * | 2014-03-25 | 2014-09-24 | 福州通尔达电线电缆有限公司 | Low-smoke no-halogen computer cable |
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