CN213583188U - Wear-resistant corrosion-resistant medium-voltage cable with metal sheath - Google Patents
Wear-resistant corrosion-resistant medium-voltage cable with metal sheath Download PDFInfo
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- CN213583188U CN213583188U CN202023289669.7U CN202023289669U CN213583188U CN 213583188 U CN213583188 U CN 213583188U CN 202023289669 U CN202023289669 U CN 202023289669U CN 213583188 U CN213583188 U CN 213583188U
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Abstract
The utility model discloses a wear-resistant corrosion-resistant medium-voltage cable with a metal sheath, which comprises an insulation wire core, a filling material, a composite insulation layer, a metal armor layer, a metal sheath layer and an outer sheath layer which are arranged from inside to outside in sequence; a plurality of the insulated wire cores are mutually twisted; the insulated wire core comprises a conductor, an inner insulating layer, an outer insulating layer and a metal shielding layer which are arranged in sequence from inside to outside; the metal sheath layer is a corrugated copper sheath; the outer sheath layer is made of polyether-ether-ketone material. The utility model has the characteristics of stand wear and tear corrosion-resistant, long service life can show the change frequency that reduces the middling pressure cable.
Description
Technical Field
The utility model relates to a wear-resisting corrosion-resistant middling pressure cable's technical field, concretely relates to wear-resisting corrosion-resistant middling pressure cable with metal sheath.
Background
The medium voltage cable is a power cable of 35 kv or less, and is a cable widely used for power transmission because it can perform stable and efficient power transmission with less power loss at a high voltage. Due to the wide application range of the medium-voltage cables, the medium-voltage cables are large in quantity and wide in distribution, and the overall maintenance difficulty is large. In some laying occasions, the medium-voltage cable is easily corroded by external abrasion or corrosive gas or liquid under the condition of long-term use, so that the service life of the medium-voltage cable is short, the medium-voltage cable is frequently replaced, the electric power transmission is easily delayed, the replacement cost is high, and more labor force needs to be consumed.
To this end, it is highly desirable to invent a medium voltage cable that has a longer service life and is resistant to wear and corrosion.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defect that above-mentioned current medium voltage cable is worn and torn easily and is corroded, the utility model provides a wear-resisting corrosion-resistant medium voltage cable with metal sheath.
In order to solve the above problem, the utility model discloses realize according to following technical scheme:
the utility model relates to a wear-resistant corrosion-resistant medium-voltage cable with a metal sheath, which is characterized by comprising an insulating wire core, a filler, a composite insulating layer, a metal armor layer, an outer sheath layer and a metal sheath layer which are arranged from inside to outside in sequence;
a plurality of the insulated wire cores are mutually twisted;
the insulated wire core comprises a conductor, an inner insulating layer, a metal shielding layer and an outer insulating layer which are sequentially arranged from inside to outside;
the metal sheath layer is a corrugated copper sheath;
the outer sheath layer is made of polyether-ether-ketone material.
Preferably, the metal sheath layer is formed by argon arc welding.
Preferably, the metal armor layer is formed by interlocking and armoring of galvanized steel strips.
Preferably, the inner insulating layer and the outer insulating layer are cross-linked by irradiation.
Preferably, the inner insulating layer is made of a polyethylene material.
Preferably, the outer insulation layer is made of polyolefin insulation.
Preferably, the number of the insulated wire cores is 3.
Preferably, the conductor is a solid conductor structure.
Preferably, the conductor is a stranded conductor structure.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses be provided with the oversheath layer of being made by polyether ether ketone material to the realization makes medium voltage cable have wear-resisting and corrosion-resistant characteristic in the protection medium voltage cable outside, and then prolongs medium voltage cable's life effectively.
2. The utility model discloses be provided with the metal sheath layer in the interior week of outer sheath layer, can cooperate the outer sheath layer to separate and protect medium voltage cable more effectively, the metal sheath layer is stand wear and tear and is strikeed, can further prolong medium voltage cable's life.
Drawings
The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention;
in the figure:
1-an insulating wire core, 11-a conductor, 12-an inner insulating layer, 13-an outer insulating layer and 14-a metal shielding layer;
2-a filler;
3-a composite insulating layer;
4-a metal armor layer;
5-a metal sheath layer;
6-outer sheath layer.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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.
As shown in fig. 1, the preferred structure of the wear-resistant and corrosion-resistant medium voltage cable with the metal sheath according to the present invention is shown.
A wear-resisting corrosion-resistant medium voltage cable with metal sheath, include from inside to outside closely clad insulation core 1, stopping 2, composite insulation layer 3, metal armor 4, metal sheath layer 5 and oversheath layer 6 in proper order.
The utility model discloses creatively, set up metal sheath layer 5 and oversheath layer 6 in medium voltage cable's periphery, wherein, metal sheath layer 5 is the wrinkle copper sheath, and oversheath layer 6 is made by stand wear and tear and corrosion-resistant polyether ether ketone material. The metal sheath layer 5 and the outer sheath layer 6 are matched with each other, so that the medium-voltage cable has wear-resisting and corrosion-resisting performances, and the service life can be obviously prolonged.
The conductor 11 is made of copper through wire drawing and stranding.
In one preferred embodiment, the conductor 11 is a solid conductor structure.
As another preferred embodiment, the conductor 11 is a stranded conductor structure.
The inner insulating layer 12 is coated on the periphery of the conductor 11, and the inner insulating layer 12 is made of polyethylene material.
The outer insulating layer 13 covers the outer periphery of the inner insulating layer 12, and the outer insulating layer 13 is made of polyolefin material.
The inner insulating layer 12 and the outer insulating layer 13 are formed on the periphery of the conductor 11 through extrusion molding by a double-layer co-extrusion extruder, and then the inner insulating layer 12 and the outer insulating layer 13 are subjected to electron beam irradiation crosslinking treatment. Specifically, electron beam irradiation crosslinking is performed on both the inner insulating layer 12 and the outer insulating layer 13 by bombarding the inner insulating layer 12 and the outer insulating layer 13 with high-energy electron beams generated by an electron accelerator to break molecular chains to form macromolecular free radicals, and then the macromolecular free radicals are recombined to form crosslinking bonds, so that the original linear molecular structure is changed into a three-dimensional reticular molecular structure to form crosslinking. The polyethylene material and the polyolefin material which are subjected to irradiation crosslinking have the characteristic of longer service life, so that the insulated wire core 1 of the wear-resistant corrosion-resistant medium-voltage cable with the metal sheath is more durable.
The metal shielding layer 14 is tightly wrapped around the outer insulating layer 13.
Stopping 2 fill between insulation core 1 and composite insulation layer 3.
Composite insulation layer 3 cladding in insulation core 1's periphery for firm insulation core 1's position and provide insulation and electric field shielding, composite insulation layer 3 includes internal shield layer, crosslinked polyethylene insulating layer and the outer shielding layer that sets gradually from inside to outside.
Metal armor 4 cladding in composite insulation layer 3's periphery, metal armor 4 forms for the chain armor of galvanized steel band, and metal armor 4 passes through the steel band armoring machine around the package on composite insulation layer 3, as the embodiment of a preferred, the armor has adopted double steel band clearance to wind the package, and the clearance rate is no longer than 50% of galvanized steel band width, the melting point of steel band about 1500 ℃, including the seal of armor, the armor can block the inner structure of flame ablation cable, blocks flame in the outside of armor, plays the effect of fire prevention.
The cladding of metal sheath layer 5 in the periphery of metal armor layer 4. The metal sheath layer 5 is formed by argon arc welding.
As a preferred embodiment, the metal sheath layer 5 is a corrugated copper sheath, which has wear and corrosion resistance characteristics due to the stable physicochemical properties of copper. The metal sheath layer 5 is arranged at the outermost periphery of the medium voltage cable, and can effectively protect the medium voltage cable, thereby prolonging the service life of the medium voltage cable. The corrugated copper sheath is formed by longitudinally welding a copper strip through argon arc welding and then embossing the periphery of the copper strip. The embossed corrugated copper sheath is suitable for being arranged on the outer layer of a medium voltage cable.
The 6 cladding of oversheath layer in metal sheath layer 5's periphery, oversheath layer 6 is made for the polyether ether ketone material. Polyetheretherketone has excellent compression and fatigue resistance, high temperature resistance, corrosion resistance and sliding wear characteristics. The excellent compression and fatigue resistance properties enable the outer sheath layer 6 made of polyetheretherketone to be undamaged under compression and repeated stretching to continuously protect the structure inside the cable.
The polyetheretherketone material has strong corrosion resistance, the polyetheretherketone is insoluble in any solvent, strong acid and strong base except concentrated sulfuric acid, and the polyetheretherketone material has hydrolysis resistance and high chemical stability, so that the outer sheath layer 6 can protect the cable in an environment with corrosive gas or liquid, and the cable can work normally.
The polyether-ether-ketone material has excellent sliding wear characteristic, can effectively prevent the cable from being worn due to repeated friction in the laying process, enables the surface of the control cable to be wear-resistant, prolongs the service life of the control cable, and ensures that the control cable can stably and normally work for a long time.
The theory of operation of wear-resisting corrosion-resistant medium voltage cable with metal sheath be:
the utility model discloses be provided with oversheath layer 6 of being made by polyether ether ketone material to the realization makes medium voltage cable have wear-resisting and corrosion-resistant characteristic in the protection medium voltage cable outside, and then prolongs medium voltage cable's life effectively.
Furthermore, the utility model discloses be provided with metal sheath layer 5 in outer jacket layer 6's interior week, can cooperate outer jacket layer 6 to separate and protect the medium voltage cable more effectively, metal sheath layer 5 is stand wear and tear and strike, can further prolong the life of medium voltage cable.
Other constructions of the abrasion and corrosion resistant medium voltage cable with a metal sheath according to the present embodiment are described in the prior art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (9)
1. The wear-resistant corrosion-resistant medium-voltage cable with the metal sheath is characterized by comprising an insulating wire core, a filling material, a composite insulating layer, a metal armor layer, a metal sheath layer and an outer sheath layer which are sequentially arranged from inside to outside;
a plurality of the insulated wire cores are mutually twisted;
the insulated wire core comprises a conductor, an inner insulating layer, an outer insulating layer and a metal shielding layer which are arranged in sequence from inside to outside;
the metal sheath layer is a corrugated copper sheath;
the outer sheath layer is made of polyether-ether-ketone material.
2. The wear and corrosion resistant medium voltage cable with metal sheath according to claim 1, characterized in that:
the metal sheath layer is formed by argon arc welding.
3. The wear and corrosion resistant medium voltage cable with metal sheath according to claim 1, characterized in that:
the metal armor layer is formed by interlocking armor of galvanized steel strips.
4. The wear and corrosion resistant medium voltage cable with metal sheath according to claim 1, characterized in that:
the inner insulating layer and the outer insulating layer are cross-linked by irradiation.
5. The wear and corrosion resistant medium voltage cable with metal sheath according to claim 4, characterized in that:
the inner insulating layer is made of polyethylene material.
6. The wear and corrosion resistant medium voltage cable with metal sheath according to claim 5, characterized in that:
the outer insulating layer is made of polyolefin insulating material.
7. The wear and corrosion resistant medium voltage cable with metal sheath according to claim 1, characterized in that:
the number of the insulated wire cores is 3.
8. The wear and corrosion resistant medium voltage cable with metal sheath according to claim 1, characterized in that:
the conductor is a solid conductor structure.
9. The wear and corrosion resistant medium voltage cable with metal sheath according to claim 1, characterized in that:
the conductor is a stranded conductor structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023289669.7U CN213583188U (en) | 2020-12-30 | 2020-12-30 | Wear-resistant corrosion-resistant medium-voltage cable with metal sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023289669.7U CN213583188U (en) | 2020-12-30 | 2020-12-30 | Wear-resistant corrosion-resistant medium-voltage cable with metal sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213583188U true CN213583188U (en) | 2021-06-29 |
Family
ID=76553066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023289669.7U Active CN213583188U (en) | 2020-12-30 | 2020-12-30 | Wear-resistant corrosion-resistant medium-voltage cable with metal sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213583188U (en) |
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2020
- 2020-12-30 CN CN202023289669.7U patent/CN213583188U/en active Active
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