CN211507191U - Novel waterproof wear-resisting power cable - Google Patents
Novel waterproof wear-resisting power cable Download PDFInfo
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- CN211507191U CN211507191U CN202020438481.5U CN202020438481U CN211507191U CN 211507191 U CN211507191 U CN 211507191U CN 202020438481 U CN202020438481 U CN 202020438481U CN 211507191 U CN211507191 U CN 211507191U
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- power cable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a novel waterproof wear-resisting power cable belongs to the power cable field, has: the core layer is provided with a conductor layer, a semiconductor shielding layer and an insulating layer; the wear-resistant rubber belt is also provided with a filling layer, wherein the filling layer consists of a flexible rubber layer and a tensile nylon rope, and an inner wear-resistant layer; the armor layer is coated on the outer layer of the inner wear-resistant layer; the armor layer is provided with a metal wear-resistant layer and a silicon nitride wear-resistant layer; the middle part of the metal wear-resistant layer is provided with an accommodating space for accommodating the silicon nitride wear-resistant layer; the outer sheath is coated on the outer layer of the armor layer and is a halogen-free low-smoke flame-retardant polyolefin outer sheath. Through installation silicon nitride wearing layer, improve the wear resistance of armor, wear-resisting wearing and tearing that effectively prevent the cable in the cooperation improve the barrier propterty and the crushing resistance of sandwich layer, the barrier propterty effect is better, can satisfy wire and cable's long-time use, makes the normal work of whole cable obtain the guarantee for the use.
Description
Technical Field
The utility model belongs to the power cable field, concretely relates to novel waterproof wear-resisting power cable.
Background
A waterproof cable mainly means that water is prevented from entering the interior of a cable structure, a protective layer of the cable is provided with a waterproof function and generally comprises longitudinal water blocking and radial water blocking, the longitudinal water blocking generally comprises water blocking yarns, water blocking powder and a water blocking tape, the water blocking mechanism is that the materials contain a water-swellable material, and when water enters from the end of the cable or from the defects of the protective sleeve, the material can rapidly swell with water to prevent the water from further diffusing along the longitudinal direction of the cable, so that the aim of longitudinal waterproof of the cable is fulfilled; the radial water resistance is realized mainly by extruding and wrapping HDPE non-metal protective layers or hot pressing, welding and cold drawing metal protective sleeves, so that the waterproof function is good.
However, the wear-resistant effect of the existing waterproof power cable structure is poor, and after the cable structure is used for a long time, the protective performance effect is not ideal, so that the cable structure is difficult to meet the long-time use requirement of the cable, great inconvenience is brought to a user, and therefore, a novel waterproof wear-resistant power cable needs to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel waterproof wear-resisting power cable.
The utility model provides a technical scheme is: a novel waterproof wear-resistant power cable comprises a core layer, wherein the core layer is provided with a conductor layer, a semiconductor shielding layer coated on the outer layer of the conductor layer and an insulating layer coated on the outer layer of the semiconductor shielding layer;
the rubber belt is characterized by also comprising a filling layer, wherein the filling layer consists of a flexible rubber layer and a tensile nylon rope, and the tensile nylon rope is wound on the outer circumferential wall of the flexible rubber layer;
the inner wear-resistant layer is coated on the outer layer of the filling layer and serves as an inner wear-resistant protective layer of the core layer;
the armor layer is coated on the outer layer of the inner wear-resistant layer; the armor layer is provided with metal wear-resistant layers and silicon nitride wear-resistant layers positioned between the metal wear-resistant layers; the middle part of the metal wear-resistant layer is provided with an accommodating space for accommodating the silicon nitride wear-resistant layer;
the outer sheath is coated on the outer layer of the armor layer and is a halogen-free low-smoke flame-retardant polyolefin outer sheath.
Further, the width of the silicon nitride wear-resistant layer is half of that of the metal wear-resistant layer.
Furthermore, a water-blocking tape layer is arranged between the armor layer and the inner wear-resistant layer, and the water-blocking tape layer is a polyurethane layer.
Further, the inner wear-resistant layer is a polyvinyl chloride layer; the thickness of the inner wear-resistant layer is 4mm-5 mm.
Further, the armor layer is made of galvanized steel wires or stainless steel wires.
Further, a waterproof coating is arranged outside the outer sheath; the waterproof coating is an amino polyvinyl chloride alcohol emulsified asphalt waterproof coating.
Has the advantages that:
the utility model discloses a novel waterproof wear-resisting power cable, through the accommodation space installation silicon nitride wearing layer between two metal wearing layers, improve the wear resistance of armor, wear-resisting wearing and tearing that effectively prevents the cable in the cooperation, wherein the cladding of interior wearing layer is at the skin of filling layer, as the inside wear-resisting protective layer of sandwich layer, improve the barrier propterty and the crushing resistance of sandwich layer, the barrier propterty effect is better, can satisfy wire and cable's long-time use, make the normal work of whole cable obtain the guarantee for the use.
Drawings
Fig. 1 is the utility model discloses a novel waterproof wear-resisting power cable's main apparent cross-section schematic diagram.
In the figure: 1-core layer, 11-conductor layer, 12-semiconductor shielding layer, 13-insulating layer, 2-filling layer, 21-flexible rubber layer, 22-tensile nylon rope, 3-inner wear-resistant layer, 4-inner wear-resistant layer, 41-metal wear-resistant layer, 42-silicon nitride wear-resistant layer, 5-outer sheath and 6-waterproof coating.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
As shown in fig. 1, the novel waterproof and wear-resistant power cable in this embodiment includes a core layer 1, where the core layer 1 includes a conductor layer 11, a semiconductor shielding layer 12 coated on an outer layer of the conductor layer 11, and an insulating layer 13 coated on an outer layer of the semiconductor shielding layer 12;
the rubber belt is also provided with a filling layer 2, wherein the filling layer 2 consists of a flexible rubber layer 21 and a tensile nylon rope 22, and the tensile nylon rope 22 is wound on the outer circumferential wall of the flexible rubber layer 21;
the inner wear-resistant layer 3 is coated on the outer layer of the filling layer 2 and serves as an inner wear-resistant protective layer of the core layer 1;
the armor layer 4 is coated on the outer layer of the inner wear-resistant layer 3; the armor layer 4 is provided with metal wear-resistant layers 41 and silicon nitride wear-resistant layers 42 positioned between the metal wear-resistant layers 41; the middle part of the metal wear-resistant layer 41 is provided with an accommodating space for accommodating the silicon nitride wear-resistant layer 42;
the outer sheath 5 is coated on the outer layer of the armor layer 4, and the outer sheath 5 is a halogen-free low-smoke flame-retardant polyolefin outer sheath.
Specifically, as shown in fig. 1, in the implementation of the present invention, the filling layer 2 is composed of the flexible rubber layer 21 and the tensile nylon cord 22, and the tensile nylon cord 22 is wound on the outer circumferential wall of the flexible rubber layer 21, so that the cable has good flexibility and better bending and twisting resistance, and can directly inhibit the stretching and deformation of the flexible rubber layer 21; its advantages are low cost and long service life.
In order to further improve the wear resistance of the cable, specifically, an inner wear-resistant layer 3 and an armor layer 4 are provided, wherein the inner wear-resistant layer 3 is coated on the outer layer of the filling layer 2 and used as an inner wear-resistant protective layer of the core layer 1, so that the protective performance and the compression resistance of the core layer 1 are improved. Wherein the armor layer 4 and the armor layer 4 coat the outer layer of the inner wear-resistant layer 3; the armor layer 4 is provided with metal wear-resistant layers 41 and silicon nitride wear-resistant layers 42 positioned between the metal wear-resistant layers 41; the middle part of metal wearing layer 41 is equipped with the accommodation space of holding silicon nitride wearing layer 42, because the accommodation space installation silicon nitride wearing layer 42 between two metal wearing layers 41, the cable is using or the installation in-process, and armor 4 that the intermediate position set up is worn and torn the easiest, consequently through local increase silicon nitride wearing layer 42, has improved the life of whole cable greatly.
Therefore, the beneficial effects of adopting the further scheme are as follows: through accommodation space installation silicon nitride wearing layer 42 between two metal wearing layers 41, improve armor 4's wear resistance, wearing layer 3 effectively prevents the wearing and tearing of cable in the cooperation, wherein the cladding of interior wearing layer 3 is at the skin of filling layer 2, as the inside wear-resisting protective layer of sandwich layer 1, improve sandwich layer 1's protective properties and crushing resistance, the protective properties effect is better, can satisfy wire and cable's long-time use, make the normal work of whole cable obtain the guarantee for the use.
In addition, aiming at the outer sheath 5, the outer sheath 5 is coated on the outer layer of the armor layer 4, and the outer sheath 5 is a halogen-free low-smoke flame-retardant polyolefin outer sheath. Have and do not have steamed, low cigarette, fire-retardant possess good short circuit load ability simultaneously, improve the environmental protection performance of cable, can play better fire prevention effect when the conflagration takes place, guarantee that the floor has the circular telegram of longer time, fire behavior promotes greatly for the high temperature resistant fire behavior of cable is better, ensures the safety in utilization of cable.
In this embodiment, the width of the silicon nitride wear-resistant layer 42 is half of that of the metal wear-resistant layer 41.
In this embodiment, a water blocking tape layer is disposed between the armor layer 4 and the inner wear layer 3, and the water blocking tape layer is a polyurethane layer. And (4) isolating water vapor and preventing water from entering. The cable has the functions of water resistance and moisture resistance, and can adapt to underground humid environment.
In this embodiment, the inner wear-resistant layer 3 is a polyvinyl chloride layer; the thickness of the inner wear-resistant layer 3 is 4mm-5 mm. The polyvinyl chloride layer has stable chemical properties, good wear resistance, insulation property and fire resistance, protects the core layer 1 from being damaged by external force, and prolongs the service life of the cable.
In this embodiment, the armor layer 4 is made of galvanized steel wires or stainless steel wires. Further improve the wear resistance of cable to and strengthened the tensile strength and the shock resistance of cable, increase the bend radius of cable. The wear resistance of the cable is improved, and accidents caused by the fact that the electric wire is exposed due to friction are prevented.
In this embodiment, a waterproof coating 8 is provided outside the aging resistant layer 7; the waterproof coating 8 is an amino polyvinyl chloride alcohol emulsified asphalt waterproof coating. Can adapt to a humid environment for a long time without being damaged. Allowing moisture to penetrate into the cable interior.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and are not limited, and although the embodiments of the present invention have been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications and equivalent substitutions can be made on the technical solutions of the embodiments of the present invention without departing from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A novel waterproof wear-resistant power cable has:
the core layer (1) is provided with a conductor layer (11), a semiconductor shielding layer (12) coated on the outer layer of the conductor layer (11), and an insulating layer (13) coated on the outer layer of the semiconductor shielding layer (12); it is characterized in that the preparation method is characterized in that,
the rubber belt is characterized by further comprising a filling layer (2), wherein the filling layer (2) is composed of a flexible rubber layer (21) and a tensile nylon rope (22), and the tensile nylon rope (22) is wound on the outer circumferential wall of the flexible rubber layer (21);
the inner wear-resistant layer (3) is coated on the outer layer of the filling layer (2) and serves as an inner wear-resistant protective layer of the core layer (1);
the armor layer (4), the armor layer (4) is coated on the outer layer of the inner wear-resistant layer (3); the armor layer (4) is provided with metal wear-resistant layers (41) and silicon nitride wear-resistant layers (42) positioned between the metal wear-resistant layers (41); the middle part of the metal wear-resistant layer (41) is provided with an accommodating space for accommodating the silicon nitride wear-resistant layer (42);
the outer sheath (5) is coated on the outer layer of the armor layer (4), and the outer sheath (5) is a halogen-free low-smoke flame-retardant polyolefin outer sheath.
2. A new waterproof and wear-resistant power cable as claimed in claim 1, characterized in that said silicon nitride wear layer (42) has a width of half of said metal wear layer (41).
3. A novel waterproof and wear-resistant power cable as claimed in claim 1, wherein a water-blocking tape layer is provided between the armor layer (4) and the inner wear-resistant layer (3), and the water-blocking tape layer is a polyurethane layer.
4. A new waterproof and abrasion-resistant power cable as claimed in claim 1, characterized in that said inner abrasion-resistant layer (3) is a polyvinyl chloride layer; the thickness of the inner wear-resistant layer (3) is 4mm-5 mm.
5. A new waterproof and wear-resistant power cable according to claim 1, characterized in that the armor layer (4) is made of galvanized steel wire or stainless steel wire.
6. A new waterproof and wear-resistant power cable as claimed in claim 1, characterized in that the outer sheath (5) is externally provided with a waterproof coating (6); the waterproof coating (6) is an amino polyvinyl chloride alcohol emulsified asphalt waterproof coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020438481.5U CN211507191U (en) | 2020-03-30 | 2020-03-30 | Novel waterproof wear-resisting power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020438481.5U CN211507191U (en) | 2020-03-30 | 2020-03-30 | Novel waterproof wear-resisting power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211507191U true CN211507191U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020438481.5U Expired - Fee Related CN211507191U (en) | 2020-03-30 | 2020-03-30 | Novel waterproof wear-resisting power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211507191U (en) |
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2020
- 2020-03-30 CN CN202020438481.5U patent/CN211507191U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200915 |
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| CF01 | Termination of patent right due to non-payment of annual fee |