CN210778009U - Low-smoke halogen-free flame-retardant double-layer co-extrusion insulation irradiation crosslinked cable - Google Patents
Low-smoke halogen-free flame-retardant double-layer co-extrusion insulation irradiation crosslinked cable Download PDFInfo
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- CN210778009U CN210778009U CN201921781356.8U CN201921781356U CN210778009U CN 210778009 U CN210778009 U CN 210778009U CN 201921781356 U CN201921781356 U CN 201921781356U CN 210778009 U CN210778009 U CN 210778009U
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Abstract
The utility model discloses a fire-retardant double-deck insulating irradiation crosslinked cable of coextruding of low smoke and zero halogen, including stranded conductor, insulating layer, inner insulating layer, outer insulating layer, separate oxygen layer, stopping, sheath, protective layer, shielding layer, fire-retardant layer, compressive layer, corrosion resistant layer and wear-resisting coating, the surface parcel of stranded conductor has the insulating layer, the surface parcel of insulating layer has a distance from the oxygen layer, it has the stopping to fill between the internal surface that separates the oxygen layer and the surface of insulating layer. The utility model discloses bending or stretching at high strength under, be difficult to produce the fracture, improved its life, it is fine to have solved current crosslinked cable insulation effect, but its tensile strength, wear resistance and corrosion resisting property are relatively poor, under high corrosive environment, is corroded very easily and leads to its unable normal use, simultaneously bending or stretching at high strength, produces the fracture very easily, has reduced its life's problem.
Description
Technical Field
The utility model relates to a power cable technical field specifically is a fire-retardant double-deck insulating irradiation crosslinked cable of crowded altogether of low smoke and zero halogen.
Background
The insulating layer material of the low-smoke halogen-free flame-retardant double-layer co-extrusion insulating irradiation crosslinked cable is an irradiation crosslinked halogen-free low-smoke flame-retardant polyolefin material, and the insulating layer processing technology adopts double-layer one-time co-extrusion production of the insulating layer (namely, the wire and cable insulating layer is formed by combining two insulating layers, and the materials of the two layers can be the same or different).
Although the existing crosslinked cable has a good insulation effect, the tensile property, the wear resistance and the corrosion resistance of the existing crosslinked cable are poor, the existing crosslinked cable is easily corroded in a high-corrosion environment and cannot be normally used, and meanwhile, the existing crosslinked cable is easily broken under high-strength bending or stretching, so that the service life of the existing crosslinked cable is shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fire-retardant bilayer of low smoke and zero halogen is crowded insulating irradiation crosslinked cable altogether, possess the advantage that barrier propterty is good, it is fine to have solved current crosslinked cable insulation effect, but its tensile strength, wear resistance and corrosion resisting property are relatively poor, under high corrosion environment, is corroded very easily and leads to its unable normal use, simultaneously in bending or tensile of high strength, produces the fracture very easily, has reduced its life's problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-retardant double-deck insulating irradiation crosslinked cable of coextruding of low smoke and zero halogen, includes stranded conductor, insulating layer, inner insulating layer, outer insulating layer, separates oxygen layer, stopping, sheath, protective layer, shielding layer, fire-retardant layer, compressive layer, corrosion resistant layer and wear-resistant coating, the surface parcel of stranded conductor has the insulating layer, the surface parcel of insulating layer has the oxygen layer that separates, it has the stopping to separate to fill between the internal surface on oxygen layer and the surface of insulating layer, the surface parcel that separates the oxygen layer has the protective layer, the surface spraying of protective layer has wear-resistant coating.
Preferably, the insulation layer comprises an inner insulation layer and an outer insulation layer, the inner insulation layer wraps the outer surface of the stranded conductor, and the outer insulation layer wraps the outer surface of the inner insulation layer.
Preferably, the materials of the inner insulating layer and the outer insulating layer are irradiation cross-linking halogen-free low-smoke flame-retardant polyolefin materials, and the outer insulating layer is woven and wrapped on the outer surface of the inner insulating layer.
Preferably, the material of the oxygen isolation layer is a mica tape, and the filler is a polypropylene material.
Preferably, the protective layer includes a shielding layer, the shielding layer wraps the outer surface of the oxygen barrier layer, the outer surface of the shielding layer wraps the flame-retardant layer, the outer surface of the flame-retardant layer wraps the pressure-resistant layer, the outer surface of the pressure-resistant layer wraps the corrosion-resistant layer, and the outer surface of the corrosion-resistant layer is fixedly connected with the inner surface of the sheath.
Preferably, the shielding layer is made of a cross-linked semiconductor electric shielding material, the flame-retardant layer is made of halogen-free flame-retardant plastic, the pressure-resistant layer is made of a ceramic fiber material, and the corrosion-resistant layer is made of epoxy resin.
Preferably, the sheath is silicon rubber, and the wear-resistant coating is wear-resistant ceramic paint.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a shielding layer, fire-retardant layer, the compressive layer, corrosion-resistant layer and wear-resistant coating's cooperation is used, can avoid the cable to be corroded under high corrosion environment, simultaneously under bending or stretching of high strength, be difficult to produce the fracture, the service life of the cable is prolonged, it is fine to have solved current crosslinked cable insulation effect, but its tensile strength, wear resistance and corrosion resistance are relatively poor, under high corrosion environment, be corroded very easily and lead to its unable normal use, bend or stretch at high strength simultaneously, produce the fracture very easily, the problem of its life has been reduced.
2. The utility model discloses an use of insulating layer, can insulate the cable, avoid the phenomenon of producing the short circuit in its use, use through fire-retardant layer, can avoid the cable burning under the high temperature condition, through the use on oxygen layer, can completely cut off oxygen, flame retardant property is improved, use through the shielding layer, can avoid outside electromagnetic wave to produce the interference to the cable, use through the crushing resistant layer, can improve the tensile resistance of cable, avoid it to produce the fracture under the high strength is tensile, use through wear-resistant coating, can avoid the cable to produce wearing and tearing under long-term service conditions.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the insulating layer of the present invention;
fig. 3 is a structure diagram of the protective layer of the present invention.
In the figure: 1 stranded conductor, 2 insulating layers, 21 inner insulating layers, 22 outer insulating layers, 3 oxygen-isolating layers, 4 filling materials, 5 sheaths, 6 protective layers, 61 shielding layers, 62 flame-retardant layers, 63 pressure-resistant layers, 64 corrosion-resistant layers and 7 wear-resistant coatings.
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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, a low-smoke halogen-free flame-retardant double-layer co-extruded insulation irradiation cross-linked cable comprises a stranded conductor 1, an insulation layer 2, an inner insulation layer 21, an outer insulation layer 22, an oxygen barrier layer 3, a filler 4, a sheath 5, a protective layer 6, a shielding layer 61, a flame-retardant layer 62, a compression-resistant layer 63, a corrosion-resistant layer 64 and a wear-resistant coating 7, wherein the outer surface of the stranded conductor 1 is wrapped with the insulation layer 2, the insulation layer 2 comprises an inner insulation layer 21 and an outer insulation layer 22, the inner insulation layer 21 is wrapped on the outer surface of the stranded conductor 1, the outer insulation layer 22 is wrapped on the outer surface of the inner insulation layer 21, the inner insulation layer 21 and the outer insulation layer 22 are both made of irradiation cross-linked low-smoke halogen-free flame-retardant polyolefin material, and the outer insulation layer 22 is wrapped on the outer surface, the outer surface of the insulating layer 2 is wrapped with the oxygen-isolating layer 3, oxygen can be isolated through the use of the oxygen-isolating layer 3, the flame retardant property is improved, the filler 4 is filled between the inner surface of the oxygen-isolating layer 3 and the outer surface of the insulating layer 2, the material of the oxygen-isolating layer 3 is a mica tape, the filler 4 is a polypropylene material, the outer surface of the oxygen-isolating layer 3 is wrapped with the protective layer 6, the protective layer 6 comprises a shielding layer 61, the shielding layer 61 is wrapped on the outer surface of the oxygen-isolating layer 3, the outer surface of the shielding layer 61 is wrapped with the flame-retardant layer 62, the cable combustion can be avoided under the high-temperature condition through the use of the flame-retardant layer 62, the outer surface of the flame-retardant layer 62 is wrapped with the pressure-resistant layer 63, the outer surface of the pressure-resistant layer 63 is wrapped with the corrosion-resistant layer 64, the outer surface of the corrosion-resistant layer 64 is fixedly connected, the cable can be prevented from being interfered by external electromagnetic waves, the flame-retardant layer 62 is made of halogen-free flame-retardant plastic, the compression-resistant layer 63 is made of ceramic fiber material, the tensile property of the cable can be improved by using the compression-resistant layer 63, the cable can be prevented from being broken under high-strength stretching, the corrosion-resistant layer 64 is made of epoxy resin, the wear-resistant coating 7 is sprayed on the outer surface of the protective layer 6, the cable can be prevented from being worn under long-term use by using the wear-resistant coating 7, the sheath 5 is made of silicon rubber, the wear-resistant coating 7 is made of wear-resistant ceramic paint, the cable can be prevented from being corroded under a high-corrosion environment by using the shielding layer 61, the flame-retardant layer 62, the compression-resistant layer 63, the corrosion-resistant layer 64 and the wear-resistant coating 7 in a matched manner, the cable is not easy to be broken under high-strength bending or stretching, the service life of, but the tensile property, the wear resistance and the corrosion resistance are poor, the steel plate can be easily corroded to cause the failure of normal use in a high-corrosion environment, and the steel plate can be easily broken under the bending or stretching with high strength, so that the service life of the steel plate is shortened.
During the use, through the use of insulating layer 2, can insulate the cable, avoid the phenomenon of producing the short circuit in its use, through the use of fire-retardant layer 62, can avoid the cable burning under the high temperature condition, through the use of isolating from oxygen layer 3, can completely cut off oxygen, flame retardant property has been improved, through the use of shielding layer 61, can avoid outside electromagnetic wave to produce the interference to the cable, through the use of corrosion-resistant layer 64, can avoid the cable to be corroded under the high corrosive environment, through the use of compressive layer 63, can improve the pull resistance of cable, avoid it to produce the fracture under the high strength is tensile, through the use of wear-resistant coating 7, can avoid the cable to produce wearing and tearing under long-term service behavior.
In summary, the following steps: this fire-retardant double-deck insulating irradiation crosslinked cable of coextruding of low smoke and zero halogen, through shielding layer 61, fire-retardant layer 62, resistance to compression layer 63, corrosion-resistant layer 64 and wear-resistant coating 7's cooperation is used, it is fine though insulating effect to have solved current crosslinked cable, but its tensile strength, wear resistance and corrosion resistance are relatively poor, under high corrosive environment, be corroded very easily and lead to its unable normal use, simultaneously under bending or tensile of high strength, produce the fracture very easily, its life's problem has been reduced.
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 (7)
1. The utility model provides a fire-retardant double-deck insulating irradiation crosslinked cable of coextruding of low smoke and zero halogen, includes stranded conductor (1), insulating layer (2), inner insulating layer (21), outer insulating layer (22), separates oxygen layer (3), stopping (4), sheath (5), protective layer (6), shielding layer (61), fire-retardant layer (62), resistance to compression layer (63), corrosion-resistant layer (64) and wear-resisting coating (7), its characterized in that: the outer surface parcel of stranded conductor (1) has insulating layer (2), the outer surface parcel of insulating layer (2) has oxygen layer (3) of separating, it has filler (4) to fill between the internal surface that separates oxygen layer (3) and the surface of insulating layer (2), the outer surface parcel that separates oxygen layer (3) has protective layer (6), the surface spraying of protective layer (6) has wear-resistant coating (7).
2. The low-smoke halogen-free flame-retardant double-layer co-extrusion insulation irradiation crosslinked cable according to claim 1, characterized in that: the insulating layer (2) comprises an inner insulating layer (21) and an outer insulating layer (22), the inner insulating layer (21) wraps the outer surface of the stranded conductor (1), and the outer insulating layer (22) wraps the outer surface of the inner insulating layer (21).
3. The low-smoke halogen-free flame-retardant double-layer co-extrusion insulation irradiation crosslinked cable according to claim 2, characterized in that: the material of the inner insulating layer (21) and the material of the outer insulating layer (22) are irradiation cross-linking halogen-free low-smoke flame-retardant polyolefin materials, and the outer insulating layer (22) is woven and wrapped on the outer surface of the inner insulating layer (21).
4. The low-smoke halogen-free flame-retardant double-layer co-extrusion insulation irradiation crosslinked cable according to claim 1, characterized in that: the oxygen isolation layer (3) is made of mica tapes, and the filler (4) is made of polypropylene.
5. The low-smoke halogen-free flame-retardant double-layer co-extrusion insulation irradiation crosslinked cable according to claim 1, characterized in that: the protective layer (6) comprises a shielding layer (61), the shielding layer (61) is wrapped on the outer surface of the oxygen isolation layer (3), the outer surface of the shielding layer (61) is wrapped with a flame-retardant layer (62), the outer surface of the flame-retardant layer (62) is wrapped with a pressure-resistant layer (63), the outer surface of the pressure-resistant layer (63) is wrapped with a corrosion-resistant layer (64), and the outer surface of the corrosion-resistant layer (64) is fixedly connected with the inner surface of the sheath (5).
6. The low-smoke halogen-free flame-retardant double-layer co-extrusion insulation irradiation crosslinked cable according to claim 5, characterized in that: the shielding layer (61) is made of a cross-linked semiconductor electric shielding material, the flame-retardant layer (62) is made of halogen-free flame-retardant plastic, the pressure-resistant layer (63) is made of a ceramic fiber material, and the corrosion-resistant layer (64) is made of epoxy resin.
7. The low-smoke halogen-free flame-retardant double-layer co-extrusion insulation irradiation crosslinked cable according to claim 1, characterized in that: the sheath (5) is made of silicon rubber, and the wear-resistant coating (7) is made of wear-resistant ceramic paint.
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| CN201921781356.8U CN210778009U (en) | 2019-10-23 | 2019-10-23 | Low-smoke halogen-free flame-retardant double-layer co-extrusion insulation irradiation crosslinked cable |
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| CN201921781356.8U CN210778009U (en) | 2019-10-23 | 2019-10-23 | Low-smoke halogen-free flame-retardant double-layer co-extrusion insulation irradiation crosslinked cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951501A (en) * | 2021-01-25 | 2021-06-11 | 郭智昊 | Isolated medium-high voltage fireproof cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951501A (en) * | 2021-01-25 | 2021-06-11 | 郭智昊 | Isolated medium-high voltage fireproof cable |
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