CN220171801U - Metal armoured flame-retardant silicone rubber flexible cable - Google Patents
Metal armoured flame-retardant silicone rubber flexible cable Download PDFInfo
- Publication number
- CN220171801U CN220171801U CN202321358249.0U CN202321358249U CN220171801U CN 220171801 U CN220171801 U CN 220171801U CN 202321358249 U CN202321358249 U CN 202321358249U CN 220171801 U CN220171801 U CN 220171801U
- Authority
- CN
- China
- Prior art keywords
- composite belt
- ceramic fireproof
- silicone rubber
- flame
- core
- Prior art date
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- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 79
- 239000004945 silicone rubber Substances 0.000 title claims abstract description 41
- 239000003063 flame retardant Substances 0.000 title claims abstract description 38
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000002184 metal Substances 0.000 title claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 8
- 239000000919 ceramic Substances 0.000 claims abstract description 56
- 239000002131 composite material Substances 0.000 claims abstract description 56
- 238000009413 insulation Methods 0.000 claims abstract description 32
- 229920001721 polyimide Polymers 0.000 claims abstract description 23
- 239000004642 Polyimide Substances 0.000 claims abstract description 20
- 239000003365 glass fiber Substances 0.000 claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 13
- 230000009970 fire resistant effect Effects 0.000 claims description 8
- 238000013329 compounding Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 238000003490 calendering Methods 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 description 5
- 230000035882 stress Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010070 extrusion (rubber) Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to a metal armoured flame-retardant silicone rubber flexible cable, and belongs to the technical field of high-temperature cables. The technical proposal is as follows: the tinned soft copper conductor (1) is externally wrapped with a polyimide inner liner (2), the polyimide inner liner (2) is externally wrapped with a silicone rubber insulation (3) in an extrusion mode, and the silicone rubber insulation (3) is externally wrapped with a ceramic fireproof composite belt I (4) to form a silicone rubber insulation wire core; the multi-core silicon rubber insulated wire core is cabled, a high-temperature-resistant glass fiber filling rope (5) is filled in the center of the cabled wire core and in a side gap, the multi-core cabled wire core is externally wrapped with silicon rubber insulation, the ceramic fireproof composite belt II (6) is externally wrapped with a flame-retardant silicon rubber sheath (7), the flame-retardant silicon rubber sheath (7) is externally wrapped with the ceramic fireproof composite belt III (8), and the ceramic fireproof composite belt III (8) is externally woven with a stainless steel wire layer (9). The utility model improves the service life of the cable.
Description
Technical Field
The utility model relates to a metal armoured flame-retardant silicone rubber flexible cable, and belongs to the technical field of high-temperature cables.
Background
At present, most of high-temperature cables laid by home and abroad factories are made of silicon rubber, the high-temperature resistance of the silicon rubber is excellent, the temperature resistance can reach 180 ℃, but the flame retardant property is general, the tensile strength, the tearing strength, the wear resistance, the acid and alkali resistance and the long-term soaking ageing resistance are poor, and due to the special working environment of the high-temperature cables, the insulation resistance of the cables is reduced after the cable is subjected to mechanical or chemical damage such as mechanical damage, tensile damage, high temperature damage, water vapor damage, acid and alkali damage, and the like, the thermal ageing life is shortened, so that key parts cannot work normally and stably, and potential safety hazards are formed.
In order to improve flame retardance and insulation strength, a layer of glass fiber is woven on the surface of the silicone rubber insulation and the surface of the sheath, a layer of flame retardant silicone resin is coated on the woven surface of the glass fiber, the process is complex, the cable surface is easy to damage in the repeated dragging and scraping processes under the special working condition environment, the mechanical protection performance is not high, and the service life of the cable is reduced.
Disclosure of Invention
The utility model aims to provide a metal armoured flame-retardant silicone rubber flexible cable, which is characterized in that a polyimide film wrapping tape is wrapped outside a tinned soft copper conductor to form a polyimide lining layer, so that the electrical insulation performance of the cable and the mechanical stress protection of silicone rubber insulation are improved; the first ceramic fireproof composite belt is wrapped outside the silicon rubber insulation, and the second ceramic fireproof composite belt is wrapped outside the flame-retardant silicon rubber sheath, so that the flame retardance and the mechanical protection performance of the cable are improved; and the three outer sides of the ceramic fireproof composite belt are braided with stainless steel wire layers, so that the damage to the surface of the cable is avoided, and the problems in the prior art are solved.
The technical scheme of the utility model is as follows:
a metal armoured flame-retardant silicone rubber flexible cable comprises a tin-plated soft copper conductor, a polyimide lining layer, a silicone rubber insulation layer, a first ceramic fireproof composite belt, a high-temperature-resistant glass fiber filling rope, a second ceramic fireproof composite belt, a flame-retardant silicone rubber sheath, a third ceramic fireproof composite belt and a stainless steel wire layer, wherein the tin-plated soft copper conductor is externally wrapped with the polyimide lining layer, the polyimide lining layer is externally wrapped with the silicone rubber insulation layer in an extrusion manner, and the first ceramic fireproof composite belt is externally wrapped with the silicone rubber insulation layer to form a silicone rubber insulation wire core; the multi-core silicon rubber insulating wire core is cabled, the center of the cabled wire core and the side gap are filled with high-temperature-resistant glass fiber filling ropes, so that the cabled wire core is cabled round, the outer wrapping silicon rubber of the multi-core cabled wire core is insulated, the outer wrapping ceramic fireproof composite belt II is extruded, the outer wrapping ceramic fireproof composite belt III is wrapped with a flame-retardant silicon rubber sheath, and the outer wrapping ceramic fireproof composite belt III is braided with a stainless steel wire layer.
Further, the first ceramic fireproof composite belt, the second ceramic fireproof composite belt and the third ceramic fireproof composite belt are formed by calendaring and compounding ceramic fireproof silicon rubber and high-temperature-resistant glass fiber cloth.
Further, the silicon rubber insulated wire core is three cores, and the three-core silicon rubber insulated wire cores are uniformly arranged in the circumferential direction.
The innovation points of the utility model are as follows:
1. and the tinned soft copper conductor is wrapped with a polyimide film wrapping tape to form a polyimide lining layer, so that the electrical insulation performance of the cable and the mechanical stress protection of silicon rubber insulation are improved.
2. The first ceramic fireproof composite belt is wrapped outside the silicon rubber insulation, and the second ceramic fireproof composite belt is wrapped outside the flame-retardant silicon rubber sheath, so that the mechanical protection of the cable is improved, the defect of poor flame retardance of the silicon rubber is overcome, and the flame retardance and the fire resistance of the cable are improved.
3. The armor oversheath is woven by adopting the stainless steel wires, so that the stainless steel wire layer is formed, the weaving density is more than or equal to 84%, the excellent tensile and mechanical protection performance are realized, meanwhile, the excellent oxidation resistance and corrosion resistance are realized, and the service life of the silicone rubber cable is greatly prolonged.
The utility model has the positive effects that: the cable has the advantages that the electrical insulation performance and mechanical stress protection of the cable are improved, the flame retardance and the fire resistance of the cable are improved, the damage to the surface of the cable is effectively avoided, and the service life of the cable is prolonged.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure: the high-temperature-resistant glass fiber reinforced plastic composite belt comprises a tin-plated soft copper conductor 1, a polyimide lining layer 2, a silicon rubber insulation 3, a first ceramic fireproof composite belt, a high-temperature-resistant glass fiber filling rope 5, a second ceramic fireproof composite belt 6, a flame-retardant silicon rubber sheath 7, a third ceramic fireproof composite belt 8 and a stainless steel wire layer 9.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
the metal armored flame-retardant silicone rubber flexible cable comprises a tin-plated soft copper conductor 1, a polyimide lining layer 2, a silicone rubber insulation 3, a ceramic fireproof and fire-resistant composite belt I4, a high-temperature-resistant glass fiber filling rope 5, a ceramic fireproof and fire-resistant composite belt II 6, a flame-retardant silicone rubber sheath 7, a ceramic fireproof and fire-resistant composite belt III 8 and a stainless steel wire layer 9, wherein the tin-plated soft copper conductor 1 is externally wrapped with the polyimide lining layer 2, the silicone rubber insulation 3 is externally extruded with the polyimide lining layer 2, and the silicone rubber insulation 3 is externally wrapped with the ceramic fireproof and fire-resistant composite belt I4 to form a silicone rubber insulation wire core; the multi-core silicon rubber insulated wire core is cabled, the center of the cable core formed by the silicon rubber insulation and the side gap are filled with high-temperature-resistant glass fiber filling ropes 5, so that the cable core formed by the cable is round, the outer wrapping silicon rubber insulation of the multi-core cable core is wrapped by a second ceramic fireproof composite belt 6, the second ceramic fireproof composite belt 6 is extruded by a flame-retardant silicon rubber sheath 7, the third ceramic fireproof composite belt 8 is wrapped by the flame-retardant silicon rubber sheath 7, and the third ceramic fireproof composite belt 8 is externally braided with a stainless steel wire layer 9.
The first ceramic fireproof composite belt 4, the second ceramic fireproof composite belt 6 and the third ceramic fireproof composite belt 8 are formed by calendaring and compounding ceramic fireproof silicon rubber and high-temperature-resistant glass fiber cloth.
Polyimide film wrapping tape is adopted for the polyimide inner liner 2, polyimide has excellent insulation resistance performance in a long-term use temperature range of 200-300 DEG, the polyimide inner liner 2 can reduce the effect of external mechanical stress born by the silicone rubber extrusion coating in the use process, the service life of the polyimide inner liner is prolonged, and the high temperature resistance and the irradiation resistance of the cable are improved to a certain extent.
Referring to fig. 1, in this embodiment, the tin-plated soft copper conductor 1 is formed by twisting 5 types of tin-plated soft copper conductors, and has good oxidation resistance and flexibility; the tinned copper conductor 1 is externally wrapped with the polyimide lining layer 2, so that the effect of external mechanical stress applied to the silicon rubber extrusion coating in the use process is reduced, and the service life of the tinned copper conductor is prolonged; a silicone rubber insulation 3 is extruded outside the polyimide lining layer 2, and the temperature of the silicone rubber insulation 3 is resistant to 180 ℃; the silicon rubber insulation 3 is wrapped with a ceramic fireproof composite belt I4 to form a silicon rubber insulation wire core; the three-core silicon rubber insulated wire core is cabled, and the high-temperature-resistant glass fiber filling rope 5 is filled in the center and the side gaps of the cabled wire core, so that the three-core silicon rubber insulated wire core has good heat resistance, corrosion resistance, stretching resistance and wear resistance, and the cable core is enabled to be round; the cable core is wrapped with a ceramic fireproof composite belt II 6; the ceramic fireproof composite belt II 6 is externally extruded with a flame-retardant silicone rubber sheath 7, the flame-retardant silicone rubber sheath 7 can be made of modified flame-retardant silicone rubber, and the long-term use temperature is 180 ℃, so that the flame-retardant silicone rubber sheath has good high temperature resistance; the fire-retardant silicone rubber sheath 7 is wrapped with the ceramic fire-retardant composite belt III 8, the ceramic fire-retardant composite belt is formed by rolling and compounding ceramic fire-retardant silicone rubber and high-temperature-resistant glass fiber cloth, the fire-retardant composite belt begins to harden under the condition of flame or no flame at 350 ℃ and above, the maximum temperature can reach 3000 ℃, the fire-retardant composite belt is quickly sintered into a ceramic-shaped hard and complete shell along with the temperature rise, the higher the ablation time is, the harder the temperature is, the better the protection effect is achieved on a circuit by armoring the hard shell after burning, and the smoothness of the circuit under the fire condition is ensured. The fire-retardant silicone rubber sheath 7 is wrapped with the ceramic fire-retardant composite belt III 8, so that the mechanical protection of the cable is increased, and the fire-retardant and fire-retardant performances of the cable are improved; the ceramic fireproof composite belt III 8 is externally braided with stainless steel wires to form a stainless steel wire layer 9, the braiding density is more than or equal to 84%, the ceramic fireproof composite belt III has excellent tensile and mechanical protection performance, and simultaneously has good oxidation resistance and corrosion resistance, and the service life of the cable is prolonged.
Claims (3)
1. A metal armoured flame-retardant silicone rubber flexible cable is characterized in that: the novel high-temperature-resistant glass fiber reinforced plastic composite wire core comprises a tin-plated soft copper conductor (1), a polyimide lining layer (2), a silicone rubber insulation (3), a first ceramic fireproof composite belt (4), a high-temperature-resistant glass fiber filling rope (5), a second ceramic fireproof composite belt (6), a flame-retardant silicone rubber sheath (7), a third ceramic fireproof composite belt (8) and a stainless steel wire layer (9), wherein the tin-plated soft copper conductor (1) is externally wrapped with the polyimide lining layer (2), the polyimide lining layer (2) is externally wrapped with the silicone rubber insulation (3), and the first ceramic fireproof composite belt (4) is externally wrapped with the silicone rubber insulation (3) to form the silicone rubber insulation wire core; the multi-core silicon rubber insulated wire core is cabled, the center of the cabled wire core and the side gap are filled with high-temperature-resistant glass fiber filling ropes (5), so that the cabled wire core is cabled round, the multi-core cabled wire core is externally wrapped with silicon rubber insulation, the outer wrapping is conducted on a ceramic fireproof and fire-resistant composite belt II (6), the outer wrapping is conducted on the ceramic fireproof and fire-resistant composite belt II (6) through a flame-retardant silicon rubber sheath (7), the outer wrapping is conducted on the flame-retardant silicon rubber sheath (7), the ceramic fireproof and fire-resistant composite belt III (8) is conducted, and a stainless steel wire layer (9) is woven outside the ceramic fireproof and fire-resistant composite belt III (8).
2. The metal-armored flame-retardant silicone rubber flexible cable of claim 1, wherein: the first ceramic fireproof composite belt (4), the second ceramic fireproof composite belt (6) and the third ceramic fireproof composite belt (8) are formed by calendaring and compounding ceramic fireproof silicon rubber and high-temperature-resistant glass fiber cloth.
3. A metal-sheathed flame-retardant silicone rubber flexible cable according to claim 1 or 2, characterized in that: the silicon rubber insulated wire core is three-core, and the three-core silicon rubber insulated wire core is uniformly arranged along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321358249.0U CN220171801U (en) | 2023-05-31 | 2023-05-31 | Metal armoured flame-retardant silicone rubber flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321358249.0U CN220171801U (en) | 2023-05-31 | 2023-05-31 | Metal armoured flame-retardant silicone rubber flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220171801U true CN220171801U (en) | 2023-12-12 |
Family
ID=89053326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321358249.0U Active CN220171801U (en) | 2023-05-31 | 2023-05-31 | Metal armoured flame-retardant silicone rubber flexible cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220171801U (en) |
-
2023
- 2023-05-31 CN CN202321358249.0U patent/CN220171801U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |