CN214796888U - Fire-proof explosion-proof insulating rubber sleeve medium-voltage cable - Google Patents
Fire-proof explosion-proof insulating rubber sleeve medium-voltage cable Download PDFInfo
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- CN214796888U CN214796888U CN202120469431.8U CN202120469431U CN214796888U CN 214796888 U CN214796888 U CN 214796888U CN 202120469431 U CN202120469431 U CN 202120469431U CN 214796888 U CN214796888 U CN 214796888U
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Abstract
The utility model discloses a fire-proof explosion-proof insulating rubber sleeve medium-voltage cable, which comprises an outer sheath, wherein a first fireproof layer is bonded on the inner side wall of the outer sheath, a first insulating layer is bonded on the inner side wall of the first fireproof layer, an isolating layer is bonded on the inner side wall of the first insulating layer, a first round pipe is uniformly arranged on the inner side wall of the isolating layer, the first round pipe comprises a first flame-retardant layer and a second round pipe, a second round pipe is bonded on the inner side wall of the first flame-retardant layer, the second round pipe comprises a first protecting layer and a first storage layer, a first storage layer is arranged on the inner side wall of the first protecting layer, a second flame-retardant layer is bonded on the inner side wall of the first round pipe, a component in the isolating layer is protected by the first insulating layer, an outer shielding layer is protected by the second insulating layer, an inner shielding layer is protected by the third insulating layer, so that the resistance of current flowing through a conductor is reduced by multiple times of insulation, the explosion of the cable caused by long-term use is prevented.
Description
Technical Field
The utility model relates to an insulating rubber cover medium voltage cable technical field of fire prevention and explosion protection specifically is an insulating rubber cover medium voltage cable of fire prevention and explosion protection.
Background
The cable is an electric energy or signal transmission device, usually comprises several or several groups of wires, but with the development of society, the service quality of the existing cable is difficult to satisfy the cable service requirement of large-scale place, because the cable used in large-scale place all requires stronger fire resistance, generally, the cable is likely to be short-circuited under certain temperature, or the cable meets high temperature and self short circuit causes high temperature, cause the cable to catch fire, even people can cause fire, and after long-time use, the condition that the wire bursts, for this reason, propose a fire prevention explosion-proof insulating rubber sleeve medium voltage cable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an insulating rubber sleeve medium voltage cable of fire prevention and explosion protection to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a fire-proof explosion-proof insulating rubber sleeve medium-voltage cable comprises an external sheath, wherein a first fire-proof layer is bonded on the inner side wall of the external sheath, a first insulating layer is bonded on the inner side wall of the first fireproof layer, an isolating layer is bonded on the inner side wall of the first insulating layer, the inner side wall of the isolation layer is uniformly provided with a first round pipe which comprises a first flame-retardant layer and a second round pipe, a second round pipe is bonded on the inner side wall of the first flame-retardant layer, the second round pipe comprises a first protective layer and a first storage layer, the inner side wall of the first protective layer is provided with a first storage layer, the inner side wall of the first round pipe is bonded with a second flame-retardant layer, the second flame-retardant layer comprises a second protective layer, a through hole and a second storage layer, the through hole is uniformly formed in the inner side wall of the second protective layer, and the second storage layer is bonded to the inner side wall of the second protective layer.
Preferably: the inside wall of isolation layer evenly is equipped with outer shielding layer.
Preferably: the outer shielding layer comprises a third protection layer and a third insulating layer, and the third insulating layer is bonded to the inner side wall of the third protection layer.
Preferably: the inner side wall of the outer shielding layer is bonded with an inner shielding layer.
Preferably: the inner shielding layer comprises a second insulating layer and two oxygen separation layers, wherein the two oxygen separation layers are symmetrically bonded on the outer side wall and the inner side wall of the second insulating layer.
Preferably: and a conductor is arranged on the inner side of the inner shielding layer.
Compared with the prior art, the beneficial effects of the utility model are that:
the component inside the isolation layer is protected through the arranged first fire-retardant layer, the component inside the outer shielding layer is protected through the first fire-retardant layer and the second fire-retardant layer, and the arranged outer shielding layer and the inner shielding layer protect the conductor inside, so that the cable is protected through multiple fire-retardant layers, and the fire resistance of the cable is enhanced;
the inner component of the first insulating layer protection isolation layer is arranged, the second insulating layer is used for protecting the outer shielding layer, and the third insulating layer is used for protecting the inner shielding layer, so that the resistance of current flowing through the conductor is reduced through multiple times of insulation, and the cable is prevented from bursting due to long-time use.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the cross-sectional structure of the conductor of the present invention;
fig. 3 is a schematic view of a cross-sectional structure of a first round tube according to the present invention;
fig. 4 is a schematic cross-sectional view of a first reservoir according to the present invention.
In the figure: 1. an outer sheath; 2. a first fire resistant layer; 3. a first insulating layer; 4. an isolation layer; 5. a first circular tube; 501. a first flame retardant layer; 502. a second circular tube; 5021. a first protective layer; 5022. a first reservoir layer; 6. a second flame retardant layer; 601. a second protective layer; 602. a through hole; 603. a second reservoir layer; 7. a conductor; 8. an inner shield layer; 801. a second insulating layer; 802. an oxygen barrier layer; 9. an outer shield layer; 901. a third protection layer; 902. and a third insulating layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, 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 work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-4, the present invention provides a technical solution: a fire-proof explosion-proof insulating rubber sleeve medium-voltage cable comprises an external sheath 1, wherein a first fireproof layer 2 is bonded on the inner side wall of the external sheath 1, a first insulating layer 3 is bonded on the inner side wall of the first fireproof layer 2, an insulating layer 4 is bonded on the inner side wall of the first insulating layer 3, a first round pipe 5 is uniformly arranged on the inner side wall of the insulating layer 4, the first round pipe 5 comprises a first flame-retardant layer 501 and a second round pipe 502, a second round pipe 502 is bonded on the inner side wall of the first flame-retardant layer 501, the second round pipe 502 comprises a first protective layer 5021 and a first storage layer 5022, a first storage layer 5022 is arranged on the inner side wall of the first protective layer 5021, a second flame-retardant layer 6 is bonded on the inner side wall of the first round pipe 5, and the second flame-retardant layer 6 comprises a second protective layer 601, the through holes 602 and the second storage layer 603 are uniformly formed in the inner side wall of the second protective layer 601, and the second storage layer 603 is adhered to the inner side wall of the second protective layer 601.
In this embodiment, specifically: the inside wall of isolation layer 4 evenly is equipped with outer shielding layer 9, through setting up outer shielding layer 9, realizes cable transmission electric capacity current, and prevents to appear in cable run's operation in-process because of the insulating condition of being punctured and causing the accident of cable tip metal sheath and shielding layer disconnection position.
In this embodiment, specifically: outer shielding layer 9 includes third protection layer 901 and third insulating layer 902, and the inside wall of third protection layer 901 bonds and has third insulating layer 902, and through the third protection layer 901 that sets up, the safe in utilization of protection outer shielding layer 9 with the help of third insulating layer 902, ensures outer shielding layer 9's power supply safety and reliability.
In this embodiment, specifically: the inside wall bonding of outer shielding layer 9 has inner shield layer 8, through the inner shield layer 8 that sets up, realizes eliminating the influence that conductor 7 surface is not smooth, because unsmooth can arouse that surface electric field intensity increases, adopts inner shield layer 8 after, can make to have good contact between insulating and the conductor 7.
In this embodiment, specifically: the internal shield layer 8 comprises a second insulating layer 801 and an oxygen separation layer 802, the outer side wall and the inner side wall of the second insulating layer 801 are symmetrically bonded with the two oxygen separation layers 802, the second insulating layer 801 is arranged, the internal shield layer 8 is protected, and the phenomenon of oxidation of the conductor 7 inside the internal shield layer 8 is prevented by the oxygen separation layer 802.
In this embodiment, specifically: the conductor 7 is adhered to the inner side wall of the inner shielding layer 8, and the current is ensured to flow through the conductor 7.
Working principle or structural principle: when the fireproof heat-insulating material is used, the outer sheath 1 is made of rubber which has good ductility and sealing performance, the first fireproof layer 2 is made of fireproof daub which is made of organic synthetic resin serving as an adhesive and added with a fireproof agent, a filler and the like through rolling, the fireproof daub is not solidified for a long time, has high plasticity, can be blocked at will and has certain waterproof performance, the first insulating layer 3 is made of ceramic which has great insulating performance and hardness capable of protecting internal components from being damaged, the isolating layer 4 is made of plastic which has low cost and light weight, the first flame-retardant layer 501 in the first circular tube 5 is made of Brominated Polystyrene (BPS) which has good mechanical physical and chemical properties such as high flame retardance, thermal stability, light stability and the like and is easy to process, the first protective layer 5021 in the second circular tube 502 is made of resin, the resin is in a solid state at normal temperature but is softened and degraded at high temperature, so that fire extinguishing gas heptafluoropropane in the first storage layer 5022 is sprayed, the heptafluoropropane is a clean gas chemical fire extinguishing agent mainly for chemical fire extinguishing and has a physical fire extinguishing effect, belongs to polyfluoroalkane, is colorless, odorless, low-toxicity, non-conductive, does not pollute a protected object, does not damage property and precision facilities, so as to reduce loss caused by fire, the second flame retardant layer 6 is made of tetrabromobisphenol A (TBBPA), the melting point of the tetrabromobisphenol A (TBBPA) is 179-182 ℃ and the boiling point is 316 ℃, the material of the second protective layer 601 is communicated with the first protective layer 5021, the internal material of the second storage layer 603 is a solid potassium carbonate solution, the solid potassium carbonate solution is melted after high temperature and is discharged through the through hole 602, and is cooled to inhibit oxygen, thereby achieving the effect of fire extinguishing, the second insulating layer 801 is made of mica with high insulating property and capable of protecting the structure inside the isolation layer 4 to the maximum extent, the oxygen isolation layers 802 on the two sides of the second insulating layer 801 are made of ethylene-vinyl alcohol copolymer (EVOH) which combines the processability of ethylene polymer and the blocking effect of vinyl alcohol polymer, the ethylene-vinyl alcohol copolymer not only shows excellent processability, but also shows excellent blocking effect on gas, smell, spice, solvent and the like, and has thermal stability due to combination with ethylene, the multi-layer container with the EVOH isolation layer can be completely recycled, the third protective layer 901 is made of soft porcelain which is made of Modified Clay (MCM) as the main raw material, and the multi-layer container is molded, baked and molded by a special temperature control molding system, The material is soft in texture, high in plasticity, attractive in appearance and mainly high in wear resistance, the third insulating layer 902 connected with the third protective layer 901 is made of polystyrene, the polystyrene is a polymer synthesized by styrene monomers through free radical addition polymerization, and the polystyrene is colorless transparent thermoplastic plastic, has high thermal performance and insulativity and can be freely colored at the later stage through the colorless characteristic.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an insulating rubber of fire prevention explosion-proof cover medium voltage cable, includes outside sheath (1), its characterized in that: the inner side wall of the outer sheath (1) is bonded with a first fireproof layer (2), the inner side wall of the first fireproof layer (2) is bonded with a first insulating layer (3), the inner side wall of the first insulating layer (3) is bonded with an isolating layer (4), the inner side wall of the isolating layer (4) is uniformly provided with a first round pipe (5), the first round pipe (5) comprises a first flame-retardant layer (501) and a second round pipe (502), the inner side wall of the first flame-retardant layer (501) is bonded with a second round pipe (502), the second round pipe (502) comprises a first protective layer (5021) and a first storage layer (5022), the inner side wall of the first protective layer (5021) is provided with a first storage layer (5022), the inner side wall of the first round pipe (5) is bonded with a second flame-retardant layer (6), the second flame-retardant layer (6) comprises a second protective layer (601), a through hole (602) and a second storage layer (603), through holes (602) are uniformly formed in the inner side wall of the second protective layer (601), and a second storage layer (603) is bonded to the inner side wall of the second protective layer (601).
2. The fire and explosion proof insulating rubber sleeve medium voltage cable of claim 1, characterized in that: the inside wall of isolation layer (4) evenly is equipped with outer shielding layer (9).
3. The fire and explosion proof insulating rubber sleeve medium voltage cable of claim 2, characterized in that: the outer shielding layer (9) comprises a third protection layer (901) and a third insulating layer (902), and the third insulating layer (902) is bonded on the inner side wall of the third protection layer (901).
4. The fire and explosion proof insulating rubber sleeve medium voltage cable of claim 2, characterized in that: and an inner shielding layer (8) is bonded on the inner side wall of the outer shielding layer (9).
5. The fire and explosion proof insulated rubber sleeve medium voltage cable of claim 4, wherein: the inner shielding layer (8) comprises a second insulating layer (801) and an oxygen isolation layer (802), and two oxygen isolation layers (802) are symmetrically bonded on the outer side wall and the inner side wall of the second insulating layer (801).
6. The fire and explosion proof insulated rubber sleeve medium voltage cable of claim 4, wherein: and a conductor (7) is arranged on the inner side of the inner shielding layer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120469431.8U CN214796888U (en) | 2021-03-04 | 2021-03-04 | Fire-proof explosion-proof insulating rubber sleeve medium-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120469431.8U CN214796888U (en) | 2021-03-04 | 2021-03-04 | Fire-proof explosion-proof insulating rubber sleeve medium-voltage cable |
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| CN214796888U true CN214796888U (en) | 2021-11-19 |
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| CN202120469431.8U Active CN214796888U (en) | 2021-03-04 | 2021-03-04 | Fire-proof explosion-proof insulating rubber sleeve medium-voltage cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628072A (en) * | 2022-03-22 | 2022-06-14 | 安徽华星电缆集团有限公司 | Flame-retardant and fire-resistant cable structure and aluminum alloy cable applying same |
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2021
- 2021-03-04 CN CN202120469431.8U patent/CN214796888U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628072A (en) * | 2022-03-22 | 2022-06-14 | 安徽华星电缆集团有限公司 | Flame-retardant and fire-resistant cable structure and aluminum alloy cable applying same |
| CN114628072B (en) * | 2022-03-22 | 2024-01-05 | 安徽华星电缆集团有限公司 | Flame-retardant fire-resistant cable structure and aluminum alloy cable using same |
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