CN215342073U - Fire-resistant high-temperature-resistant long-life nontoxic environment-friendly copper sheath inorganic mineral insulated cable - Google Patents
Fire-resistant high-temperature-resistant long-life nontoxic environment-friendly copper sheath inorganic mineral insulated cable Download PDFInfo
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- CN215342073U CN215342073U CN202120625447.3U CN202120625447U CN215342073U CN 215342073 U CN215342073 U CN 215342073U CN 202120625447 U CN202120625447 U CN 202120625447U CN 215342073 U CN215342073 U CN 215342073U
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Abstract
The utility model discloses a fire-resistant, high-temperature-resistant, long-life, nontoxic and environment-friendly copper sheath inorganic mineral insulated cable which comprises a cable framework, wherein a metal shielding net is fixedly connected to the outer side of the surface of the cable framework, a cable core is arranged on the surface of the cable framework, an inner mica wrapping tape penetrates through the surface of the cable framework, and a filler is arranged between the surface of the cable framework and the inner wall of the inner mica wrapping tape and positioned on the outer side of the cable core. The insulating cable is provided with the cable framework, the cable core, the filler, the inner mica wrapping tape, the metal shielding net, the outer flame-retardant filling layer, the outer copper sheath, the wear-resistant protective layer, the inner flame-retardant filling layer, the fire-resistant protective layer, the heat-resistant adhesive and the heat-resistant protective layer which are matched for use, has the advantages of fire resistance, heat resistance and flame-retardant protection, and solves the problems that the existing insulating cable is general in fire resistance and heat resistance, poor in flame-retardant protection performance, incapable of meeting the requirements of users, and low in practicability.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to a fire-resistant, high-temperature-resistant, long-life, non-toxic and environment-friendly copper sheath inorganic mineral insulated cable.
Background
The power cable is used for transmitting and distributing electric energy, is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and transmission lines under river-crossing seawater, is gradually increased in proportion in the power line, is a cable product used for transmitting and distributing high-power electric energy in a trunk line of a power system, and comprises various insulated power cables with voltage grades of 1-500KV and above.
Along with the progress of science and technology and the development of society, the kind of insulated cable is diversified more and more, and current insulated cable fire-resistant heat resistance is general, and fire-retardant protectiveness is relatively poor, can't satisfy user's demand, has reduced insulated cable's practicality.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a fire-resistant high-temperature-resistant long-life nontoxic environment-friendly copper sheath inorganic mineral insulated cable, which has the advantages of fire resistance, heat resistance and flame-retardant protection, and solves the problems that the existing insulated cable has general fire resistance and heat resistance, poor flame-retardant protection performance, can not meet the requirements of users, and reduces the practicability of the insulated cable.
In order to achieve the purpose, the utility model provides the following technical scheme: a fire-resistant, high-temperature-resistant, long-life, nontoxic and environment-friendly copper sheath inorganic mineral insulated cable comprises a cable framework, the outer side of the surface of the cable framework is fixedly connected with a metal shielding net, the surface of the cable framework is provided with a cable core, an inner mica wrapping tape penetrates through the surface of the cable framework, a filler is arranged between the surface of the cable framework and the inner wall of the inner mica wrapping tape and positioned at the outer side of a cable core, the outer surface of the metal shielding net is fixedly connected with an outer flame-retardant filling layer, one side of the outer flame-retardant filling layer far away from the metal shielding net is fixedly connected with an outer copper sheath, one side fixedly connected with fire-resistant heat-resistant layer that outer fire-retardant filling layer was kept away from to outer copper sheathing, fire-resistant heat-resistant layer includes fire-resistant protective layer, heat-resistant adhesive and heat-resistant protective layer, the outer fixed surface on fire-resistant heat-resistant layer is connected with wear-resisting protective layer.
Preferably, the number of the cable cores is four, and empty grooves matched with the inner mica wrapping belts are formed in the surface of the cable framework.
Preferably, an inner flame-retardant filling layer is fixedly connected between the outer surface of the inner mica wrapping tape and the inner surface of the metal shielding net and positioned on the outer side of the cable framework, and the inner flame-retardant filling layer is made of a magnesium hydroxide flame retardant.
Preferably, the inner surface of the fire-resistant protective layer is fixedly connected with the outer surface of the heat-resistant protective layer through a heat-resistant adhesive, the inner surface of the heat-resistant protective layer is fixedly connected with the outer surface of the outer copper sheath, and the outer surface of the fire-resistant protective layer is fixedly connected with the inner surface of the wear-resistant protective layer.
Preferably, the outer flame-retardant filling layer is made of a high-heat-resistance boehmite flame retardant, and the wear-resistant protective layer is made of carbon fibers.
Preferably, the material of the fire-resistant protective layer is zirconia fiber, and the material of the heat-resistant protective layer is alumina fiber.
Compared with the prior art, the utility model has the following beneficial effects:
1. the insulating cable is provided with the cable framework, the cable core, the filler, the inner mica wrapping tape, the metal shielding net, the outer flame-retardant filling layer, the outer copper sheath, the wear-resistant protective layer, the inner flame-retardant filling layer, the fire-resistant protective layer, the heat-resistant adhesive and the heat-resistant protective layer which are matched for use, has the advantages of fire resistance, heat resistance and flame-retardant protection, and solves the problems that the existing insulating cable is general in fire resistance and heat resistance, poor in flame-retardant protection performance, incapable of meeting the requirements of users, and low in practicability.
2. The utility model can play a role of electromagnetic shielding by arranging the metal shielding net, greatly reduces the influence of external electromagnetism on signals in a cable core, has the advantages of high heat resistance, high heat conductivity and strong acid-base resistance by arranging the outer flame-retardant filling layer, can play a role of primary flame-retardant protection, can play a role of good insulation protection by arranging the outer copper sheath, has the advantages of high temperature resistance, friction resistance and corrosion resistance by arranging the wear-resistant protective layer, can play an excellent protection role on the fire-resistant heat-resistant layer, has the advantages of heat evolution water, quick heat absorption and smoke suppression by arranging the inner flame-retardant filling layer, can carry out secondary flame-retardant protection, improves the flame-retardant property of the cable, has the advantages of stable high-temperature chemical property, thermal shock resistance, non-volatility, no pollution and low thermal expansion coefficient by arranging the fire-resistant protective layer, and can play an excellent role of fire-resistant protection, and green is pollution-free, through setting up heat-resisting protective layer, has the advantage that matter is light, the thermal conductivity is low and thermal stability, can effectively reduce external heat conduction volume, plays heat-resisting thermal-insulated protection's effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of a cable carcass structure according to the present invention;
FIG. 3 is a schematic cross-sectional view of the refractory and heat-resistant layer of the present invention.
In the figure: the cable comprises a cable framework 1, a cable core 2, a filler 3, an inner mica tape 4, a metal shielding net 5, an outer flame-retardant filling layer 6, an outer copper sheath 7, a flame-resistant heat-resistant layer 8, a wear-resistant protective layer 9, an inner flame-retardant filling layer 10, an empty groove 11, a flame-resistant protective layer 12, a heat-resistant adhesive 13 and a heat-resistant protective layer 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a fire-resistant, high-temperature-resistant, long-life, nontoxic, environment-friendly, inorganic mineral-insulated cable with a copper sheath comprises a cable framework 1, wherein the cable framework 1 is arranged to effectively increase the stability of the cable, a metal shielding net 5 is fixedly connected to the outer side of the surface of the cable framework 1, the metal shielding net 5 is arranged to play a role of electromagnetic shielding, the influence of external electromagnetism on signals in the cable core 2 is greatly reduced, the cable core 2 is arranged on the surface of the cable framework 1, an inner mica wrapping tape 4 is arranged on the surface of the cable framework 1 in a penetrating manner, a filler 3 is arranged between the surface of the cable framework 1 and the inner wall of the inner mica wrapping tape 4 and positioned at the outer side of the cable core 2, an outer flame-retardant filling layer 6 is fixedly connected to the outer surface of the metal shielding net 5, an outer copper sheath 7 is fixedly connected to one side of the outer flame-retardant filling layer 6, which is far away from the metal shielding net 5, the outer-layer copper sheath 7 is arranged, so that a good insulation protection effect can be achieved, one side, away from the outer-layer flame-retardant filling layer 6, of the outer-layer copper sheath 7 is fixedly connected with a fireproof heat-resistant layer 8, the fireproof heat-resistant layer 8 comprises a fireproof protective layer 12, a heat-resistant adhesive 13 and a heat-resistant protective layer 14, and the outer surface of the fireproof heat-resistant layer 8 is fixedly connected with a wear-resistant protective layer 9;
the number of the cable cores 2 is four, the surface of the cable framework 1 is provided with the empty grooves 11 matched with the inner mica tape 4, and the cable cores 2 and the fillers 3 can be tightly bound and installed on the cable framework 1 by arranging the inner mica tape 4 and the empty grooves 11 to be matched;
an inner flame-retardant filling layer 10 is fixedly connected between the outer surface of the inner mica wrapping tape 4 and the inner surface of the metal shielding net 5 and positioned on the outer side of the cable framework 1, the inner flame-retardant filling layer 10 is made of a magnesium hydroxide flame retardant, and by arranging the inner flame-retardant filling layer 10, the cable has the advantages of heat-precipitated water, quick heat absorption and smoke suppression, secondary flame-retardant protection can be performed, and the flame-retardant property of the cable is improved;
the inner surface of the fire-resistant protective layer 12 is fixedly connected with the outer surface of the heat-resistant protective layer 14 through a heat-resistant adhesive 13, the inner surface of the heat-resistant protective layer 14 is fixedly connected with the outer surface of the outer copper sheath 7, and the outer surface of the fire-resistant protective layer 12 is fixedly connected with the inner surface of the wear-resistant protective layer 9;
the outer flame-retardant filling layer 6 is made of a high-heat-resistance boehmite flame retardant, and the outer flame-retardant filling layer 6 has the advantages of high heat resistance, high heat conductivity and strong acid and alkali resistance and can play a role in primary flame-retardant protection, the wear-resistant protective layer 9 is made of carbon fibers, and the wear-resistant protective layer 9 has the advantages of high temperature resistance, friction resistance and corrosion resistance and can play an excellent role in protecting the fire-resistant heat-resistant layer 8;
the material of the refractory protection layer 12 is zirconia fiber, and by arranging the refractory protection layer 12, the refractory protection layer has the advantages of stable high-temperature chemical property, thermal shock resistance, non-volatility, no pollution and low thermal expansion coefficient, can achieve an excellent refractory protection effect, is green and environment-friendly, has no pollution, and by arranging the refractory protection layer 14, the refractory protection layer 14 is alumina fiber, has the advantages of light weight, low thermal conductivity and thermal stability, can effectively reduce the external heat conduction quantity, and plays a role in heat-resistant and heat-insulation protection;
through setting up cable frame 1, cable core 2, filler 3, interior mica band 4, metallic shield net 5, outer fire-retardant filling layer 6, outer copper sheath 7, wear-resisting protective layer 9, the fire-retardant filling layer 10 of inlayer, fire-resistant protective layer 12, heat-resistant adhesive 13 and the cooperation of heat-resistant protective layer 14 are used, the advantage that has fire-resistant heat-resisting and fire-retardant protection has been solved current insulated cable fire-resistant heat resistance can be general, and fire-retardant protectiveness is relatively poor, can't satisfy the user's demand, the problem of insulated cable practicality has been reduced.
When in use, the metal shielding net 5 is arranged, the electromagnetic shielding effect can be achieved, the influence of external electromagnetism on signals in the cable core 2 is greatly reduced, the outer flame-retardant filling layer 6 has the advantages of high heat resistance, high heat conductivity and strong acid-base resistance, the primary flame-retardant protection effect can be achieved, the outer copper sheath 7 can achieve good insulation protection effect, the wear-resistant protection layer 9 has the advantages of high temperature resistance, friction resistance and corrosion resistance, the excellent protection effect can be achieved on the fire-resistant heat-resistant layer 8, the inner flame-retardant filling layer 10 has the advantages of heat precipitation, rapid heat absorption and smoke suppression, secondary flame-retardant protection can be achieved, the flame-retardant performance of the cable is improved, and the advantages of stable high-temperature chemical property, thermal shock resistance, non-volatility, no pollution and low thermal expansion coefficient can be achieved by arranging the fire-resistant protection layer 12, the fireproof protection that can be excellent, and green is pollution-free, through setting up heat-resisting protective layer 14, has the advantage that matter is light, the heat conductivity is low and the thermal stability, can effectively reduce external heat conduction volume, plays the effect of heat-resisting thermal-insulated protection.
All parts used in the application document are standard parts and can be purchased from the market, and the specific connection mode of all parts adopts the conventional means of heat pressing, bonding and the like mature in the prior art, and the specific description is not provided.
In summary, the following steps: this fire-resistant high temperature resistant long-life nontoxic environment-friendly copper sheath inorganic mineral insulated cable, through setting up cable skeleton 1, cable core 2, filler 3, interior mica band 4, metallic shield net 5, outer fire-retardant filling layer 6, outer copper sheath 7, wear-resisting protective layer 9, the fire-retardant filling layer 10 of inlayer, fire-resistant protective layer 12, heat-resistant adhesive 13 and the cooperation of heat-resistant protective layer 14 are used, the advantage that has fire-resistant heat-resisting and fire-retardant protection, it is general to have solved current insulated cable fire-resistant heat resistance, and fire-retardant protection nature is relatively poor, can't satisfy the user's demand, the problem of insulated cable practicality has been reduced.
In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Fire-resistant high temperature resistant long-life nontoxic environment-friendly copper sheath inorganic mineral insulated cable, including cable frame (1), its characterized in that: the cable comprises a cable framework (1), wherein a metal shielding net (5) is fixedly connected to the outer side of the surface of the cable framework (1), a cable core (2) is arranged on the surface of the cable framework (1), an inner mica wrapping tape (4) penetrates through the surface of the cable framework (1), a filler (3) is arranged between the surface of the cable framework (1) and the inner wall of the inner mica wrapping tape (4) and positioned on the outer side of the cable core (2), an outer flame-retardant filling layer (6) is fixedly connected to the outer surface of the metal shielding net (5), an outer copper sheath (7) is fixedly connected to one side, away from the outer flame-retardant filling layer (6), of the outer copper sheath (7) is fixedly connected to a fire-resistant heat-resistant layer (8), and the fire-resistant heat-resistant layer (8) comprises a fire-resistant protective layer (12), a heat-resistant adhesive (13) and a heat-resistant protective layer (14), and the outer surface of the fireproof heat-resistant layer (8) is fixedly connected with a wear-resistant protective layer (9).
2. The fire-resistant, high-temperature-resistant, long-life, nontoxic and environment-friendly copper sheath inorganic mineral insulated cable according to claim 1, characterized in that: the number of the cable cores (2) is four, and empty grooves (11) matched with the inner mica tape (4) are formed in the surface of the cable framework (1).
3. The fire-resistant, high-temperature-resistant, long-life, nontoxic and environment-friendly copper sheath inorganic mineral insulated cable according to claim 1, characterized in that: an inner flame-retardant filling layer (10) is fixedly connected between the outer surface of the inner mica wrapping belt (4) and the inner surface of the metal shielding net (5) and positioned on the outer side of the cable framework (1), and the inner flame-retardant filling layer (10) is made of a magnesium hydroxide flame retardant.
4. The fire-resistant, high-temperature-resistant, long-life, nontoxic and environment-friendly copper sheath inorganic mineral insulated cable according to claim 1, characterized in that: the inner surface of the fire-resistant protective layer (12) is fixedly connected with the outer surface of the heat-resistant protective layer (14) through a heat-resistant adhesive (13), the inner surface of the heat-resistant protective layer (14) is fixedly connected with the outer surface of the outer copper sheath (7), and the outer surface of the fire-resistant protective layer (12) is fixedly connected with the inner surface of the wear-resistant protective layer (9).
5. The fire-resistant, high-temperature-resistant, long-life, nontoxic and environment-friendly copper sheath inorganic mineral insulated cable according to claim 1, characterized in that: the outer flame-retardant filling layer (6) is made of a high-heat-resistance boehmite flame retardant, and the wear-resistant protective layer (9) is made of carbon fibers.
6. The fire-resistant, high-temperature-resistant, long-life, nontoxic and environment-friendly copper sheath inorganic mineral insulated cable according to claim 1, characterized in that: the material of the fire-resistant protection layer (12) is zirconia fiber, and the material of the heat-resistant protection layer (14) is alumina fiber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120625447.3U CN215342073U (en) | 2021-03-29 | 2021-03-29 | Fire-resistant high-temperature-resistant long-life nontoxic environment-friendly copper sheath inorganic mineral insulated cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120625447.3U CN215342073U (en) | 2021-03-29 | 2021-03-29 | Fire-resistant high-temperature-resistant long-life nontoxic environment-friendly copper sheath inorganic mineral insulated cable |
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| CN215342073U true CN215342073U (en) | 2021-12-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709019A (en) * | 2022-03-22 | 2022-07-05 | 重庆市南方阻燃电线电缆有限公司 | Modified electric power communication cable of compound film of nanometer aviation |
| CN116487107A (en) * | 2023-06-21 | 2023-07-25 | 广东胜宇电缆实业有限公司 | Metal sheath mineral insulated cable and preparation method thereof |
-
2021
- 2021-03-29 CN CN202120625447.3U patent/CN215342073U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709019A (en) * | 2022-03-22 | 2022-07-05 | 重庆市南方阻燃电线电缆有限公司 | Modified electric power communication cable of compound film of nanometer aviation |
| CN116487107A (en) * | 2023-06-21 | 2023-07-25 | 广东胜宇电缆实业有限公司 | Metal sheath mineral insulated cable and preparation method thereof |
| CN116487107B (en) * | 2023-06-21 | 2023-11-21 | 广东胜宇电缆实业有限公司 | Metal sheath mineral insulated cable and preparation method thereof |
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