CN212061980U - Mineral substance insulation fireproof cable - Google Patents
Mineral substance insulation fireproof cable Download PDFInfo
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- CN212061980U CN212061980U CN202020587358.XU CN202020587358U CN212061980U CN 212061980 U CN212061980 U CN 212061980U CN 202020587358 U CN202020587358 U CN 202020587358U CN 212061980 U CN212061980 U CN 212061980U
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- insulating layer
- rubber material
- material insulating
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- ethylene propylene
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Abstract
The utility model discloses a mineral substance insulation fireproof cable, which comprises a flame-retardant layer, wherein the flame-retardant layer is wrapped on the outer surface of an outer ethylene propylene rubber material insulating layer, the outer ethylene propylene rubber material insulating layer is wrapped on the outer surface of an outer rubber material insulating layer, more than two metal plastic composite strips are fixed in the outer rubber material insulating layer at equal intervals, one ends of the metal plastic composite strips, which are far away from the outer rubber material insulating layer, are fixed on the outer annular side surface of an inner rubber material insulating layer, the space enclosed among the metal plastic composite strips, the inner rubber material insulating layer and the outer rubber material insulating layer is a heat insulation gas filling space, an inner ethylene propylene rubber material insulating layer is arranged in the inner rubber material insulating layer, a crosslinked polyethylene insulating layer is arranged in the inner ethylene propylene rubber material insulating layer, a mineral substance insulation filling layer is filled in the crosslinked polyethylene insulating layer, and the central position in the mineral, the utility model discloses resistant buckling, flame retardant efficiency is good, high temperature resistant.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to mineral substance insulation fireproof cable.
Background
The cable is widely applied to control installation, connection equipment and power transmission, and is an indispensable important transmission medium in the aspects of industry, civilian use and the like. The cable has various specifications and models so as to meet the requirements of different equipment and transmission purposes.
However, in the prior art, because building gathering in the city, and electromechanical device uses in a large number, so cable laying is intensive, the condition of a large amount of buckles appears easily, and its sheath breaks easily under the condition of buckling of current cable, and fire prevention flame retardant efficiency is not good, when the conflagration takes place for the building, burns out the cable easily to cause the short circuit and open circuit, aggravate the conflagration easily, lead to the circuit to destroy in a large number simultaneously, cause the big condition of later stage maintenance degree of difficulty, so need a mineral substance insulation fireproof cable in order to solve the above-mentioned problem that appears.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a mineral insulated fireproof cable,
in order to solve the technical problem, the utility model discloses a technical scheme does:
a mineral substance insulated fireproof cable comprises a flame-retardant layer, wherein the flame-retardant layer is wrapped on the outer surface of an outer ethylene propylene rubber insulating layer, the outer ethylene propylene rubber insulating layer is wrapped on the outer surface of an outer rubber insulating layer, more than two metal plastic composite strips are fixed in the outer rubber insulating layer at equal intervals, one ends of the metal plastic composite strips, far away from the outer rubber insulating layer, are fixed on the outer annular side surface of an inner rubber insulating layer, a space enclosed among the metal plastic composite strips, the inner rubber insulating layer and the outer rubber insulating layer is a heat insulation gas filling space, an inner ethylene propylene rubber insulating layer is arranged in the inner rubber insulating layer, a crosslinked polyethylene insulating layer is arranged in the inner ethylene propylene rubber insulating layer, a mineral substance insulated filling layer is filled in the crosslinked polyethylene insulating layer, and a central copper conductor is installed in the central position in the mineral substance insulated filling layer in a penetrating, the inner part of the mineral substance insulating filling layer on the annular side surface of the central copper conductor surrounds the central copper conductor and is annularly and equidistantly distributed with more than two edge copper conductors, and the outer surfaces of the edge copper conductors and the central copper conductor are sleeved with anti-corrosion protective layers.
Preferably, the inner surface of the outer rubber insulating layer is wrapped by a first high-density film, and the outer surface of the inner rubber comprises a second high-density film.
Preferably, the inside of the heat insulating gas-filled space is filled with carbon dioxide gas.
Preferably, the outer surface of the flame retardant layer is wrapped with an anticorrosive layer.
Preferably, the outer annular groove of fire-retardant layer surface machining, annular groove in the inside annular side of fire-retardant layer processing, and interior annular groove and outer annular groove alternate arrangement, interior annular groove and outer annular groove cross section all are the arc structure.
Adopt above-mentioned technical scheme, because the high temperature resistant flame retardant efficiency of fire-retardant layer and outer EP rubbers material insulating layer, make the utility model discloses flame retardant efficiency is good, because the setting of the interior annular groove of processing on the fire-retardant layer and outer annular groove and interior rubber material insulating layer and outer rubber material insulating layer makes the utility model discloses be difficult for breaking when buckling, in addition through the setting in insulating gas filling space, can reach inside thermal-insulated effect through filling inert gas to high temperature produces the influence to inside mineral substance filling layer, anticorrosive protective layer, central copper conductor and boundary layer copper conductor when preventing the conflagration, and the setting of mineral substance insulating filling layer and crosslinked polyethylene insulating layer then can effectively guarantee insulating effect.
The utility model discloses resistant buckling, flame retardant efficiency is good, high temperature resistant.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
fig. 2 is a schematic structural diagram of the middle flame-retardant layer of the present invention.
In the figure, 1-a central copper conductor, 2-an anticorrosion protective layer, 3, an edge layer copper conductor, 4, a mineral insulating filling layer, 5, a crosslinked polyethylene insulating layer, 6, an inner ethylene propylene rubber material insulating layer, 7, an inner rubber material insulating layer, 8, a metal plastic composite strip, 9, an outer rubber material insulating layer, 10, a flame-retardant layer, 11, an outer ethylene propylene rubber material insulating layer, 12, a heat insulation gas filling space, 101 and an outer annular groove; 102. an inner annular groove.
Detailed Description
The following description of the present invention will be made with reference to the accompanying drawings 1-2. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
A mineral substance insulated fireproof cable comprises a flame retardant layer 10, wherein the flame retardant layer 10 wraps the outer surface of an outer ethylene propylene rubber material insulating layer 11, the outer ethylene propylene rubber material insulating layer 11 wraps the outer surface of an outer rubber material insulating layer 9, more than two metal plastic composite strips 8 are fixed in the outer rubber material insulating layer 9 at equal intervals, one ends of the metal plastic composite strips 8, far away from the outer rubber material insulating layer 9, are fixed on the outer annular side surface of an inner rubber material insulating layer 7, the space enclosed among the metal plastic composite strips 8, the inner rubber material insulating layer 7 and the outer rubber material insulating layer 9 is a heat insulation gas filling space 12, an inner ethylene propylene rubber material insulating layer 6 is arranged in the inner rubber material insulating layer 7, a crosslinked polyethylene insulating layer 5 is arranged in the inner ethylene propylene rubber material insulating layer 6, and a mineral substance insulated filling layer 4 is filled in the crosslinked polyethylene insulating layer 5, the inside central point of 4 inside central copper conductors 1 of installation are run through to the insulating filling layer of mineral substance, the insulating filling layer of mineral substance 4 inside of 1 annular side of central copper conductor is the annular equidistance around central copper conductor 1 and arranges more than two limit layer copper conductors 3, limit layer copper conductor 3 and 1 surface suit anticorrosion protective layer 2 of central copper conductor.
The inner surface of the outer rubber material insulating layer 9 is wrapped by the first high-density film, and the outer surface of the inner rubber material insulating layer 7 comprises the second high-density film, so that the sealing property of the heat insulation gas filling space 12 is improved.
The heat insulating gas filling space 12 is filled with carbon dioxide gas, so that the heat insulating effect can be effectively improved.
And an anticorrosive layer wraps the outer surface of the flame-retardant layer 10, so that the anticorrosive capability is improved.
Outer annular groove 101 of fire-retardant layer 10 surface processing, annular groove 102 in the inside annular side processing of fire-retardant layer 10, and interior annular groove 102 and outer annular groove 101 arrange alternately, interior annular groove 102 and outer annular groove 101 cross section all are the arc structure, improve the bending ability, can prevent effectively that fire-retardant layer 10 from receiving to buckle and breaking.
The working principle is as follows:
when a fire disaster occurs, the flame retardant layer 10 and the outer ethylene propylene rubber material insulating layer 11 can realize a good flame retardant effect, the inner ethylene propylene rubber material insulating layer 6 can further perform flame retardant, so as to ensure good protection of the central copper conductor 1 and the side copper conductor 3, meanwhile, the gas filled in the heat insulation gas filling space 12 can play a role of heat insulation, and can block outside heat, so that the central copper conductor 1, the side copper conductor 3, the anti-corrosion protective layer 2 and the mineral substance insulation filling layer 4 wrapped outside the central copper conductor 1 and the side copper conductor 3 are not easily affected by outside high temperature, the crosslinked polyethylene insulating layer 5 is arranged while the insulating effect is improved, the weight of the cable can be ensured not to be overlarge due to the light weight, when the cable is laid and bent, the inner annular groove 102 is extruded at a place where the outer annular groove 101 stretches, thereby annular groove 102 all produces deformation with outer annular groove 101 in the position of kink, thereby improve fire-retardant layer 10's anti ability of buckling, prevent that it from receiving to buckle and breaking, and interior rubber material insulating layer 7 and outer rubber material insulating layer 9 are the material that bending property is better, consequently difficult emergence is broken in the in-process of buckling, thereby can effectively guarantee the leakproofness of insulating gas filling space 12, and whether outer EPR rubber material insulating layer 11 between fire-retardant layer 10 and the outer rubber material insulating layer 9 that is difficult for breaking breaks is then influenced not much, and crosslinked polyethylene insulating layer 5 and inner EPR rubber material insulating layer 6 that are in inside rubber material insulating layer 7 are then because the bending degree is little, difficult for breaking.
The embodiments of the present invention have been described in detail with reference to fig. 1-2, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (5)
1. The utility model provides a mineral substance insulation fireproof cable, includes fire-retardant layer, its characterized in that: the flame-retardant layer is wrapped on the outer surface of the outer ethylene propylene rubber material insulating layer, the outer ethylene propylene rubber material insulating layer is wrapped on the outer surface of the outer rubber material insulating layer, more than two metal plastic composite strips are fixed inside the outer rubber material insulating layer at equal intervals, one ends, far away from the outer rubber material insulating layer, of the metal plastic composite strips are fixed on the outer annular side surface of the inner rubber material insulating layer, the space, surrounded among the metal plastic composite strips, the inner rubber material insulating layer and the outer rubber material insulating layer, is a heat insulation gas filling space, the inner ethylene propylene rubber material insulating layer is arranged inside the inner rubber material insulating layer, the cross-linked polyethylene insulating layer is arranged inside the inner ethylene propylene rubber material insulating layer, the cross-linked polyethylene insulating layer is filled with a mineral substance insulating filling layer, a central copper conductor is installed in a penetrating mode at the center copper conductor annular side surface, and the mineral substance insulating filling layer on More than two edge layer copper conductors are arranged, and the outer surfaces of the edge layer copper conductors and the central copper conductor are sleeved with anti-corrosion protective layers.
2. The mineral insulated fireproof cable of claim 1, wherein: the inner surface of the outer rubber material insulating layer is wrapped with a first high-density film, and the outer surface of the inner rubber material insulating layer comprises a second high-density film.
3. The mineral insulated fireproof cable of claim 1, wherein: the heat insulating gas-filled space is filled with carbon dioxide gas.
4. The mineral insulated fireproof cable of claim 1, wherein: the outer surface of the flame retardant layer is wrapped with an anticorrosive layer.
5. The mineral insulated fireproof cable of claim 1, wherein: outer annular groove of fire-retardant layer surface machining, annular groove in the inside annular side of fire-retardant layer processes, and interior annular groove and outer annular groove alternate arrangement, interior annular groove and outer annular groove cross section all are the arc structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020587358.XU CN212061980U (en) | 2020-04-18 | 2020-04-18 | Mineral substance insulation fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020587358.XU CN212061980U (en) | 2020-04-18 | 2020-04-18 | Mineral substance insulation fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212061980U true CN212061980U (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020587358.XU Active CN212061980U (en) | 2020-04-18 | 2020-04-18 | Mineral substance insulation fireproof cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN212061980U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114093562A (en) * | 2021-10-29 | 2022-02-25 | 江苏帝诚线缆有限公司 | Fire monitoring is with fire-retardant fireproof cable |
| RU217090U1 (en) * | 2022-11-30 | 2023-03-16 | Общество с ограниченной ответственностью "ЭнергоТэк" | Heavy Duty Spiral Conduit |
-
2020
- 2020-04-18 CN CN202020587358.XU patent/CN212061980U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114093562A (en) * | 2021-10-29 | 2022-02-25 | 江苏帝诚线缆有限公司 | Fire monitoring is with fire-retardant fireproof cable |
| CN114093562B (en) * | 2021-10-29 | 2023-12-08 | 江苏帝诚线缆有限公司 | Fire monitoring is with fire-retardant fireproof cable |
| RU217090U1 (en) * | 2022-11-30 | 2023-03-16 | Общество с ограниченной ответственностью "ЭнергоТэк" | Heavy Duty Spiral Conduit |
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