CN217719104U - High temperature resistant type mineral insulation fireproof cable - Google Patents
High temperature resistant type mineral insulation fireproof cable Download PDFInfo
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- CN217719104U CN217719104U CN202221319872.0U CN202221319872U CN217719104U CN 217719104 U CN217719104 U CN 217719104U CN 202221319872 U CN202221319872 U CN 202221319872U CN 217719104 U CN217719104 U CN 217719104U
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Abstract
The utility model discloses a high temperature resistant type mineral insulation fireproof cable relates to the cable field, including cable core and protective coat, the cable core includes protective coat and copper core transposition conductor, the protective coat includes high temperature resistant insulating inlayer, the outside of high temperature resistant insulating inlayer is provided with waterproof inlayer, and is a plurality of it has fire-retardant layer to fill between cable core and the protective coat, the protective coat includes high temperature resistant insulating skin, high temperature resistant insulating skin's outside cover is equipped with waterproof skin, waterproof outer outside cover is equipped with the inoxidizing coating, high temperature resistant insulating inlayer includes phlogopite mineral matter insulating layer and glass fiber weaving layer, high temperature resistant insulating skin includes the carbon fiber weaving layer, the outside of carbon fiber weaving layer is provided with high temperature resistant pottery glue coating. The utility model discloses can carry out multiple high temperature resistant insulation protection to copper core stranded conductor, improve the high temperature resistant insulating properties of this cable greatly for the high temperature resistant insulating properties of this cable is superior.
Description
Technical Field
The utility model relates to a cable field, concretely relates to high temperature resistant type mineral insulation fireproof cable.
Background
Cables are typically made by stranding several or several groups of wires, each group insulated from one another, often twisted around a center, and surrounded by a highly insulating covering. The cable has the characteristics of internal electrification and external insulation. Mineral insulated cables are one type of cable. Mineral insulated cables are abbreviated as MI cables, and are commonly called magnesium oxide cables or fireproof cables in China when used as wiring. The cable is a copper core copper sheath cable taking mineral material magnesium oxide powder as insulation, and the mineral insulation cable is composed of two inorganic materials of a copper conductor, magnesium oxide and a copper sheath. Mineral insulated cables have been widely used in high-rise buildings, petrochemical, airports, tunnels, ships, offshore oil platforms, aerospace, ferrous metallurgy, shopping centers, parking lots, and other applications.
At present, the traditional mineral insulated cable is weak in high-temperature resistance and insulation, so that the service life of the cable cannot be guaranteed, the cable needs to be frequently maintained and replaced, and the use cost of the cable is greatly increased.
Therefore, it is necessary to invent a high temperature resistant mineral insulated fireproof cable to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high temperature resistant type mineral insulation fireproof cable to it is more weak with insulating nature to solve its high temperature resistance ability of traditional mineral insulation cable that proposes in the above-mentioned background art, makes the life of cable can not obtain the guarantee, needs frequently to the maintenance and the change of cable, has greatly increased the use cost's of cable problem.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a high temperature resistant type mineral insulation fireproof cable, includes cable core and protective outer cover, the quantity of cable core is provided with a plurality ofly, and is a plurality of the cable core is all nested in the protective outer cover, the cable core includes protective inner cover and copper core transposition conductor, copper core transposition conductor nestification is in the protective inner cover, the protective inner cover includes high temperature resistant insulating inner layer, the outside of high temperature resistant insulating inner layer is provided with waterproof inlayer, and is a plurality of it has fire-retardant layer to fill between cable core and the protective outer cover, the protective outer cover includes high temperature resistant insulating outer layer, high temperature resistant insulating outer outside cover is equipped with waterproof skin, waterproof outer outside cover is equipped with the inoxidizing coating, high temperature resistant insulating inlayer includes phlogopite mineral matter insulating layer and glass fiber pottery weaving layer, the outside at phlogopite mineral matter insulating layer is established to glass fiber weaving layer cover, high temperature resistant insulating outer layer includes the carbon fiber weaving layer, the outside of carbon fiber weaving layer is provided with high temperature resistant glue coating.
Preferably, the protective layer is a halogen-free low-smoke polyolefin outer sheath, and is low in toxicity, low in smoke, high in flame retardance, high in safety, green and environment-friendly.
Preferably, the waterproof inner layer comprises a waterproof polyvinyl chloride layer, the outer side of the waterproof polyvinyl chloride layer is covered with a first waterproof film, the polyvinyl chloride has high strength, is not easy to fall off, is waterproof and flame-retardant, and is combined with the first waterproof film to effectively improve the waterproof performance of the cable core.
Preferably, the first waterproof film is made of PE, so that the cable is good in electrical insulation, weak in water absorption, high in ductility and impact strength and low in friction, and the waterproof performance and the insulation performance of the cable can be improved.
Preferably, waterproof skin includes the zinc-aluminum alloy layer, the outside on zinc-aluminum alloy layer covers has the second waterproof film, and zinc-aluminum alloy has dampproofing and waterproofing's effect, and zinc-aluminum alloy material is softer simultaneously, and the processability is excellent, and the cable through zinc-aluminum alloy parcel can realize the guard action to the cable, also can maintain the pliability of cable, covers the waterproof performance that one deck second waterproof film has further improved this cable at zinc-aluminum alloy layer.
Preferably, the second waterproof film is made of PE materials, is good in electrical insulation and weak in water absorption, has high ductility and impact strength and low friction, and can improve the waterproof performance and the insulation performance of the cable.
Preferably, the flame retardant layer is made of fireproof mud, the fireproof mud is a flexible flame retardant material and has the characteristic of high fire resistance limit, and meanwhile, the fireproof mud has good fire resistance, smoke blockage, oil resistance, water resistance and corrosion resistance and can effectively protect the cable core.
Preferably, the copper core stranded conductor is formed by stranding a plurality of strands of oxygen-free copper core wires, and the oxygen-free copper core stranded conductor is high in transmission speed and good in stability.
In the technical scheme, the utility model provides a technological effect and advantage:
1. the high-temperature-resistant insulating inner layer is arranged on the cable core, the high-temperature-resistant insulating outer layer is arranged on the protective outer sleeve, and the flame-retardant layer supported by the fire clay is filled between the plurality of cable cores and the protective outer sleeve, so that multiple high-temperature-resistant insulating protection can be performed on the copper core stranded conductor, the high-temperature-resistant insulating inner layer consists of the phlogopite mineral substance insulating layer and the glass fiber braided layer, and the high-temperature-resistant insulating outer layer consists of the carbon fiber braided layer and the high-temperature-resistant ceramic adhesive coating, so that the high-temperature-resistant insulating property of the cable is greatly improved, and the high-temperature-resistant insulating property of the cable is excellent;
2. the cable core is provided with the waterproof inner layer, the protective outer layer is arranged on the protective outer sleeve, double waterproof protection can be carried out on the copper core stranded conductor, the waterproof inner layer consists of the waterproof polyvinyl chloride layer and the first waterproof film, and the waterproof outer layer consists of the zinc-aluminum alloy layer and the second waterproof film, so that the cable is excellent in waterproof performance, and the waterproof performance of the cable is greatly improved;
3. through being provided with the zinc-aluminum alloy layer, the zinc-aluminum alloy material is softer, can realize the guard action to the cable, also can maintain the pliability of cable, is convenient for the processing of buckling of cable.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the cable core structure of the present invention;
fig. 3 is a schematic diagram of the cable core of the present invention;
FIG. 4 is a schematic view of the protective outer cover of the present invention;
fig. 5 is a cross-sectional view of the present invention.
Description of reference numerals:
the cable comprises a cable core 1, a protective outer sleeve 2, a protective inner sleeve 3, a copper core stranded conductor 4, a high-temperature-resistant insulating inner layer 5, a waterproof inner layer 6, a flame-retardant layer 7, a high-temperature-resistant insulating outer layer 8, a waterproof outer layer 9, a protective layer 10, a phlogopite mineral insulating layer 11, a glass fiber woven layer 12, a carbon fiber woven layer 13, a high-temperature-resistant ceramic adhesive coating 14, a waterproof polyvinyl chloride layer 15, a first waterproof PE film 16, a zinc-aluminum alloy layer 17 and a second waterproof PE film 18.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
The utility model provides a high temperature resistant type mineral insulation fireproof cable as shown in figures 1-5, including cable core 1 and protective outer cover 2, the quantity of cable core 1 is provided with a plurality ofly, a plurality ofly cable core 1 all nests in protective outer cover 2, cable core 1 includes protective inner cover 3 and copper core stranded conductor 4, copper core stranded conductor 4 nests in protective inner cover 3, protective inner cover 3 includes high temperature resistant insulation inner layer 5, the outside of high temperature resistant insulation inner layer 5 is provided with waterproof inlayer 6, a plurality ofly the cable core 1 is filled with fire-retardant layer 7 with protective outer cover 2, protective outer cover 2 includes high temperature resistant insulation outer layer 8, the outside cover of high temperature resistant insulation outer layer 8 is equipped with waterproof outer layer 9, the outside cover of waterproof outer layer 9 is equipped with protective layer 10, protective layer 10 sets up to low smoke polyolefin oversheath, low-toxicity, low smoke, high fire-retardant braided layer, high safety, green, environmental protection, high temperature resistant insulation inner layer 5 includes golden mica mineral substance insulating layer 11 and glass fiber insulating layer 12, glass fiber strength is big, insulating properties is good, and has good high temperature resistance and fiber resistance and good high temperature resistance performance, the more than high temperature resistant mica mineral substance 12, the heat-resistant mica insulating layer 13 high temperature resistant carbon fiber insulating layer has a little, high temperature resistant performance, the heat-resistant carbon fiber insulating layer 12 has a little fire-resistant performance, the high temperature resistant carbon fiber insulating layer is more than high temperature resistant carbon fiber insulating layer 13, the heat-resistant carbon fiber insulating layer has a high temperature resistant carbon fiber insulating material is provided with high temperature resistant carbon fiber insulating material is more than high temperature resistant carbon fiber insulating layer 13, the high temperature resistant carbon fiber insulating layer is more than the high temperature resistant carbon fiber insulating layer 12, the high temperature resistant carbon fiber insulating layer is provided with high temperature resistant carbon fiber insulating layer is more than the high temperature resistant carbon fiber insulating layer is provided with high temperature resistant carbon fiber insulating layer 13, the high-temperature resistant ceramic cement can keep good bonding performance and corrosion resistance at the high temperature of 1800 ℃, and has long service life.
The flame-retardant layer 7 is made of fireproof mud, the fireproof mud is a flexible flame-retardant material and has the characteristic of high fire resistance limit, and meanwhile, the fireproof mud has good fire resistance, smoke blockage, oil resistance, water resistance and corrosion resistance, and can effectively protect the cable core 1.
The copper core stranded conductor 4 is formed by stranding a plurality of strands of oxygen-free copper core wires, and the copper core stranded conductor 4 made of the oxygen-free copper material has high transmission speed and good stability.
The implementation mode specifically comprises the following steps: the cable core 1 consists of a protective inner sleeve 3 and a copper core stranded conductor 4, the copper core stranded conductor 4 is formed by stranding a plurality of strands of oxygen-free copper core wires, the transmission speed is high, and has good stability, the high temperature resistant insulating inner layer 5 on the protective inner sleeve 3 consists of a phlogopite mineral insulating layer 11 and a glass fiber braided layer 12, has good insulating property, and has excellent high temperature resistance and combustion resistance, improves the insulation performance and the high temperature resistance of the cable core 1, can effectively protect the copper core stranded conductor 4, is filled with the flame-retardant layer 7 between the protective outer sleeve 2 and the plurality of cable cores 1, and the flame-retardant layer 7 is made of fire-retardant clay which is a flexible flame-retardant material and has the characteristic of high fire resistance limit, meanwhile, the fire-proof mud has good fire-retardant, smoke-blocking, oil-proof, water-proof and corrosion-resistant performances, can effectively protect the cable core 1, meanwhile, the high-temperature resistant insulating outer layer 8 on the protective outer sleeve 2 consists of a carbon fiber woven layer 13 and a high-temperature resistant ceramic coating 14, the carbon fiber can resist the high temperature of more than 3000 ℃, and has outstanding heat resistance, compared with other materials, the strength of the carbon fiber begins to decrease when the temperature is higher than 1500 ℃, and the higher the temperature is, the higher the fiber strength is, the high temperature resistant ceramic cement can keep good bonding property and corrosion resistance at the high temperature of 1800 ℃, the service life is long, the insulating property and the high temperature resistance of the protective outer sleeve 2 are strong, the cable core 1 can be effectively protected, the insulating property and the high temperature resistance of the cable are greatly improved, the embodiment specifically solves the problems that the traditional mineral insulated cable in the prior art has weak high temperature resistance and insulation, the service life of the cable cannot be guaranteed, the cable needs to be maintained and replaced frequently, and the use cost of the cable is greatly increased.
As shown in fig. 3-4, the waterproof inner layer 6 includes a waterproof polyvinyl chloride layer 15, the outer side of the waterproof polyvinyl chloride layer 15 is covered with a first waterproof film 16, the polyvinyl chloride has high strength, is not easy to fall off, is waterproof and flame-retardant, and is combined with the first waterproof film 16 to effectively improve the waterproof performance of the cable core 1, the first waterproof film 16 is made of a PE material, has good electrical insulation performance and weak water absorption, has high ductility, impact strength and low friction, and can improve the waterproof performance and the insulation performance of the cable.
The waterproof outer layer 9 comprises a zinc-aluminum alloy layer 17, the outer side of the zinc-aluminum alloy layer 17 is covered with a second waterproof film 18, the zinc-aluminum alloy has the waterproof and moistureproof effects, meanwhile, the zinc-aluminum alloy is soft in material and excellent in processing performance, the cable wrapped by the zinc-aluminum alloy can realize the protection effect on the cable and maintain the flexibility of the cable, the zinc-aluminum alloy layer 17 is covered with one layer of the second waterproof film 18, the waterproof performance of the cable is further improved, the second waterproof film 18 is made of a PE material, the electric insulation performance is good, the water absorption performance is weak, the second waterproof film 18 has high ductility, impact strength and low friction performance, and the waterproof performance and the insulation performance of the cable can be improved.
The implementation mode specifically comprises the following steps: the waterproof inner layer 6 is composed of a waterproof polyvinyl chloride layer 15 and a first waterproof film 16, the polyvinyl chloride is high in strength and not prone to falling off, and is waterproof and flame-retardant, the waterproof effect of the cable core 1 can be improved, the first waterproof film 16 covers the waterproof polyvinyl chloride layer 15, the waterproof performance of the cable core 1 is further improved, the waterproof outer layer 9 is composed of a zinc-aluminum alloy layer 17 and a second waterproof film 18, the zinc-aluminum alloy has the waterproof and moistureproof effects, the waterproof and moistureproof effects of the protective outer sleeve 2 are improved by matching with the second waterproof film 18, the waterproof inner layer 6 and the waterproof outer layer 9 form double waterproof protection, the waterproof effect of the cable is greatly improved, the zinc-aluminum alloy is soft in material and excellent in processing performance, the cable wrapped by the zinc-aluminum alloy can achieve the protection effect on the cable, the flexibility of the cable can be maintained, bending processing of the cable is facilitated, and the problem that the waterproof performance of the cable is weak in the prior art is specifically solved by the implementation mode.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (8)
1. The utility model provides a high temperature resistant type mineral insulation fireproof cable, includes cable core (1) and protective cover (2), the quantity of cable core (1) is provided with a plurality ofly, and is a plurality of cable core (1) is all nested in protective cover (2), its characterized in that: the cable core (1) comprises a protective inner sleeve (3) and a copper core stranded conductor (4), the copper core stranded conductor (4) is nested in the protective inner sleeve (3), the protective inner sleeve (3) comprises a high-temperature-resistant insulating inner layer (5), a waterproof inner layer (6) is arranged on the outer side of the high-temperature-resistant insulating inner layer (5), the cable core (1) and the protective outer sleeve (2) are filled with a flame-retardant layer (7), the protective outer sleeve (2) comprises a high-temperature-resistant insulating outer layer (8), a waterproof outer layer (9) is sleeved on the outer side of the high-temperature-resistant insulating outer layer (8), a protective layer (10) is sleeved on the outer side of the waterproof outer layer (9), the high-temperature-resistant insulating inner layer (5) comprises a phlogopite mineral insulating layer (11) and a glass fiber (12), the glass fiber braided layer (12) is sleeved on the outer side of the phlogopite mineral insulating layer (11), the high-temperature-resistant insulating outer layer (8) comprises a carbon fiber braided layer (13), and a high-temperature-resistant ceramic adhesive coating (14) is arranged on the outer side of the carbon fiber braided layer (13).
2. The high temperature resistant mineral insulated fireproof cable according to claim 1, wherein: the protective layer (10) is arranged to be a halogen-free low-smoke polyolefin outer sheath.
3. The high temperature resistant mineral insulated fireproof cable of claim 1, wherein: waterproof inlayer (6) are including waterproof polyvinyl chloride layer (15), the outside on waterproof polyvinyl chloride layer (15) covers has first waterproof membrane (16).
4. The high temperature resistant mineral insulated fireproof cable of claim 3, wherein: the first waterproof film (16) is made of PE materials.
5. The high temperature resistant mineral insulated fireproof cable of claim 1, wherein: the waterproof outer layer (9) comprises a zinc-aluminum alloy layer (17), and a second waterproof film (18) covers the outer side of the zinc-aluminum alloy layer (17).
6. The high temperature resistant mineral insulated fireproof cable of claim 5, wherein: the second waterproof film (18) is made of PE materials.
7. The high temperature resistant mineral insulated fireproof cable of claim 1, wherein: the flame-retardant layer (7) is made of fireproof mud.
8. The high temperature resistant mineral insulated fireproof cable of claim 1, wherein: the copper core stranded conductor (4) is formed by stranding a plurality of strands of oxygen-free copper core wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221319872.0U CN217719104U (en) | 2022-05-30 | 2022-05-30 | High temperature resistant type mineral insulation fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221319872.0U CN217719104U (en) | 2022-05-30 | 2022-05-30 | High temperature resistant type mineral insulation fireproof cable |
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| Publication Number | Publication Date |
|---|---|
| CN217719104U true CN217719104U (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221319872.0U Active CN217719104U (en) | 2022-05-30 | 2022-05-30 | High temperature resistant type mineral insulation fireproof cable |
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|---|---|
| CN (1) | CN217719104U (en) |
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2022
- 2022-05-30 CN CN202221319872.0U patent/CN217719104U/en active Active
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