CN211062486U - Flexible mineral insulation fireproof cable - Google Patents
Flexible mineral insulation fireproof cable Download PDFInfo
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- CN211062486U CN211062486U CN201922365049.8U CN201922365049U CN211062486U CN 211062486 U CN211062486 U CN 211062486U CN 201922365049 U CN201922365049 U CN 201922365049U CN 211062486 U CN211062486 U CN 211062486U
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Abstract
The embodiment of the utility model discloses a flexible mineral insulation fireproof cable, relates to the technical field of electric wires and cables, the cable comprises a plurality of cable cores and a plurality of cable core outsourcing is equipped with an aluminum sheath oxygen-isolating layer, the aluminum sheath oxygen-isolating layer and the cable core, between a plurality of cable cores are all filled with a magnesium oxide mineral oxygen-isolating layer, the aluminum sheath oxygen-isolating layer is provided with a fireproof isolation layer and an outer sheath in sequence; the cable core comprises a conductor and a phlogopite mineral insulating layer arranged outside the conductor. The utility model relates to a flexible mineral insulation fireproof cable simple structure, its cable fire proofness is good, and when meeting naked light, its multilayer fire prevention design can effectual reinforcing cable fire proofness, protection cable safe in utilization.
Description
Technical Field
The embodiment of the utility model provides a relate to wire and cable technical field, concretely relates to flexible mineral insulation fireproof cable.
Background
The electricity utilization safety is a worldwide problem, and particularly when a fire accident occurs, how to reserve sufficient time for people to escape safely is ensured, so that the accident loss is reduced; the circuit is ensured to be electrified safely, the signal is smooth, and the important function is played; in addition, how to improve the fire safety levels of key projects, important places, special fields and the like is pursued by people in the cable industry.
The common cable is characterized in that a protective sleeve made of polyvinyl chloride or rubber materials is coated outside a conductor, the cable with the structure is simple in manufacturing process and low in cost, but the requirements of fire-proof and explosion-proof industries can not be met. When the transmission current of the cable is large, the overload phenomenon is easy to occur, and at the moment, if the insulating layer added into the cable is not heat-resistant, an open fire source is easy to generate, even internal heat is gathered to a certain degree to burn through the protective sleeve outside, so that a fire disaster is easy to cause, and under the condition of the fire disaster, a large amount of dense smoke gas can be generated, so that the environment is polluted, and the cable is also the most main factor of casualties.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a flexible mineral insulation fireproof cable to solve the problem that current ordinary cable can't satisfy a lot of needs fire prevention explosion-proof trade demands.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
according to the first aspect of the embodiment of the utility model, a flexible mineral insulation fireproof cable, the cable includes a plurality of cable cores, a plurality of cable cores outsourcing is equipped with the aluminium sheath and separates the oxygen layer, the aluminium sheath separate the oxygen layer with between the cable core, all fill between a plurality of cable cores and have the magnesium oxide mineral separate the oxygen layer, the aluminium sheath separates the oxygen layer and has set gradually fire prevention isolation layer and oversheath outward; the cable core comprises a conductor and a phlogopite mineral insulating layer arranged outside the conductor.
The cable core still includes fire prevention aluminium sheath and water proof insulating layer, fire prevention aluminium sheath and water proof insulating layer set gradually outside the phlogopite mineral substance insulating layer.
And a mineral wrapping tape is arranged between the oxygen-isolating layer of the aluminum sheath and the fireproof isolating layer.
The outer sheath is a halogen-free low-smoke polyolefin outer sheath.
The conductor is formed by stranding a plurality of single-wire copper wires.
And a flame-retardant layer and a metal protective layer are sequentially arranged between the mineral tape and the fireproof isolation layer.
The flame-retardant layer is of a micro-bubble honeycomb structure.
The metal protective layer is formed by weaving flexible metal filament yarns.
The embodiment of the utility model provides a have following advantage:
the embodiment of the utility model provides a flexible mineral insulation fireproof cable all comprises inorganic matter (like metallic copper, magnesium oxide powder), and it itself can not arouse the conflagration, can not burn or combustion-supporting. The melting point of copper is 1083 ℃, the melting point of magnesium oxide is 2800 ℃, so the cable can continuously maintain power supply under the condition of a fire disaster close to the melting point of copper, the cable is a real fireproof cable, the cable has a wide coverage, not only overcomes the defects of a rigid fireproof cable, but also plays the advantages of a flexible fireproof cable, and achieves the effects of short circuit, no combustion and no short circuit in an electric line in modern engineering.
The utility model relates to a flexible mineral insulation fireproof cable simple structure, its cable fire proofness is good, and when meeting naked light, its multilayer fire prevention design can effectual reinforcing cable fire proofness, protection cable safe in utilization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic structural diagram of a flexible mineral insulated fireproof cable provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a flexible mineral insulated fireproof cable provided in embodiment 2 of the present invention;
in the figure: the cable comprises a cable core 1, a conductor 11, a phlogopite mineral insulating layer 12, a fireproof aluminum sheath 13, a waterproof insulating layer 14, an aluminum sheath oxygen isolation layer 2, a magnesium oxide mineral oxygen isolation layer 3, a fireproof isolation layer 4, an outer sheath 5, a mineral wrapping tape 6, a flame retardant layer 7 and a metal protection layer 8.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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.
Example 1
The flexible mineral insulation fireproof cable shown in fig. 1 comprises a plurality of cable cores 1, wherein an aluminum sheath oxygen-isolating layer 2 is wrapped outside the cable cores 1, magnesium oxide mineral oxygen-isolating layers 3 are filled between the aluminum sheath oxygen-isolating layer 2 and the cable cores 1 and between the cable cores 1, and a fireproof isolation layer 4 and an outer sheath 5 are sequentially arranged outside the aluminum sheath oxygen-isolating layer 2; the cable core 1 comprises a conductor 11, and a phlogopite mineral insulating layer 12, a fireproof aluminum sheath 13 and a waterproof insulating layer 14 which are sequentially arranged outside the conductor 11.
Add the aluminium sheath outside cable core 1 and separated oxygen layer 2, separate the oxygen layer 2 at the aluminium sheath with between cable core 1, all pack between a plurality of cable cores 1 and have magnesium oxide mineral and separate oxygen layer 3, make the cable can not only have effects such as transmission electric energy under normal condition, and can be when the conflagration takes place, with cable core and oversheath and outside oxygen separation of cable, prevent inside flame gets into the cable, form effective protection to its cable core, in order to avoid inside cable core to suffer destruction, and then prevent the short circuit of circuit, the etc. that opens circuit, personnel and property loss reduce greatly. The aluminum sheath oxygen-insulating layer and the magnesium oxide mineral oxygen-insulating layer are both made of inorganic materials, so that the fireproof paint can not self-ignite when meeting fire, and has a real fireproof effect; the flame is not delayed, the flame can be prevented from spreading around the cable, the flame is rapidly expanded, and the reliability and the safety of the line are greatly improved.
The design of the phlogopite mineral insulating layer 12, the fireproof aluminum sheath 13 and the waterproof insulating layer 14 outside the cable core 1 further forms effective protection for the cable core, and further prevents the inner cable core from being damaged.
And a mineral belt 6 is arranged between the aluminum sheath oxygen-isolating layer 2 and the fireproof isolating layer 4.
The outer sheath 5 is a halogen-free low-smoke polyolefin outer sheath. Through the technical scheme, toxic and corrosive gases generated during combustion can be reduced, and the prepared cable is more environment-friendly.
The conductor 11 is formed by stranding a plurality of single-wire copper wires.
The utility model discloses simple structure, its cable fire proofness is good, and when meeting naked light, its multilayer fire prevention design can effectual reinforcing cable fire proofness, protection cable safe in utilization.
Example 2
The technical solution of this embodiment includes the technical solution of embodiment 1, and also includes the following technical solutions:
as shown in fig. 2, a flame retardant layer 7 and a metal protective layer 8 are sequentially arranged between the mineral tape 6 and the fireproof isolation layer 4. The external fireproof capacity of the cable is improved through the flame-retardant layer 7, the wear-resisting capacity of the cable is improved through the metal protective layer 8, and the electric wire exposure caused by friction is prevented, so that accidents are prevented.
The flame-retardant layer 7 is of a micro-bubble honeycomb structure.
The metal protective layer 8 is woven by flexible metal filament yarns.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. The flexible mineral insulation fireproof cable is characterized by comprising a plurality of cable cores (1), wherein an aluminum sheath oxygen separation layer (2) is wrapped outside the cable cores (1), magnesium oxide mineral oxygen separation layers (3) are filled between the aluminum sheath oxygen separation layer (2) and the cable cores (1) and between the cable cores (1), and a fireproof isolation layer (4) and an outer sheath (5) are sequentially arranged outside the aluminum sheath oxygen separation layer (2); the cable core (1) comprises a conductor (11) and a phlogopite mineral insulating layer (12) arranged outside the conductor (11).
2. The flexible mineral-insulated fireproof cable according to claim 1, wherein the cable core (1) further comprises a fireproof aluminum sheath (13) and a waterproof insulating layer (14), and the fireproof aluminum sheath (13) and the waterproof insulating layer (14) are sequentially arranged outside the phlogopite mineral insulating layer (12).
3. A flexible mineral insulated fireproof cable according to claim 1, wherein a mineral tape (6) is provided between the aluminium sheath oxygen barrier layer (2) and the fireproof insulation layer (4).
4. A flexible mineral insulated fireproof cable according to claim 1, wherein the outer sheath (5) is a halogen-free low smoke polyolefin outer sheath.
5. A flexible mineral insulated fireproof cable according to claim 1, wherein the conductor (11) is stranded of a plurality of individual copper filaments.
6. A flexible mineral-insulated fireproof cable according to claim 3, wherein a flame retardant layer (7) and a metal protective layer (8) are arranged in sequence between the mineral tape (6) and the fireproof insulation layer (4).
7. A flexible mineral insulated fireproof cable according to claim 6, wherein the flame retardant layer (7) is a micro-cellular structure.
8. A flexible mineral insulated fireproof cable according to claim 6, wherein the metal shield (8) is braided from flexible metal filament strands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922365049.8U CN211062486U (en) | 2019-12-25 | 2019-12-25 | Flexible mineral insulation fireproof cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922365049.8U CN211062486U (en) | 2019-12-25 | 2019-12-25 | Flexible mineral insulation fireproof cable |
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| CN211062486U true CN211062486U (en) | 2020-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922365049.8U Active CN211062486U (en) | 2019-12-25 | 2019-12-25 | Flexible mineral insulation fireproof cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192668A (en) * | 2021-04-25 | 2021-07-30 | 华远高科电缆有限公司 | Isolated flexible mineral insulation fireproof cable for nuclear industry |
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2019
- 2019-12-25 CN CN201922365049.8U patent/CN211062486U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192668A (en) * | 2021-04-25 | 2021-07-30 | 华远高科电缆有限公司 | Isolated flexible mineral insulation fireproof cable for nuclear industry |
| CN113192668B (en) * | 2021-04-25 | 2023-02-21 | 华远高科电缆有限公司 | Isolated flexible mineral insulation fireproof cable for nuclear industry |
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