CN219676932U - Independent lining layer high-water-resistance medium-voltage power cable - Google Patents
Independent lining layer high-water-resistance medium-voltage power cable Download PDFInfo
- Publication number
- CN219676932U CN219676932U CN202321226961.5U CN202321226961U CN219676932U CN 219676932 U CN219676932 U CN 219676932U CN 202321226961 U CN202321226961 U CN 202321226961U CN 219676932 U CN219676932 U CN 219676932U
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- layer
- power cable
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- wall
- voltage power
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 240000005572 Syzygium cordatum Species 0.000 claims description 3
- 235000006650 Syzygium cordatum Nutrition 0.000 claims description 3
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims description 2
- 229920003235 aromatic polyamide Polymers 0.000 claims description 2
- 229920001903 high density polyethylene Polymers 0.000 claims description 2
- 239000004700 high-density polyethylene Substances 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 238000010521 absorption reaction Methods 0.000 description 9
- 241000196324 Embryophyta Species 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000008187 granular material Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Classifications
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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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- Insulated Conductors (AREA)
Abstract
The utility model belongs to the field of power cables, in particular to an independent lining high-water-resistance medium-voltage power cable, aiming at the problem that a waterproof layer is usually added to waterproof the existing power cable when the existing power cable is used, when the existing power cable is subjected to plants or is punctured during transportation, the waterproof effect is greatly reduced.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to an independent-lining high-water-resistance medium-voltage power cable.
Background
The power cable is a cable for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under sea water passing through the river, and in the power lines, the proportion of the cable is gradually increasing. Power cables are cable products used in the main line of power systems to transmit and distribute high power electrical energy, including various voltage classes of 1-500KV and above, and various insulated power cables.
The medium voltage power cable is 35 kv or less, and in order to prevent water from entering the power cable, the waterproof performance of the power cable needs to be increased, but the existing power cable is usually waterproof by adding a waterproof layer when in use, when the power cable is punctured by plants or during transportation, the waterproof effect is greatly reduced, and the utility model provides the independent lining high water blocking medium voltage power cable.
Disclosure of Invention
The utility model provides an independent lining layer high-water-resistance medium-voltage power cable, which solves the defect that in the prior art, a waterproof layer is usually added for waterproof when the power cable is used, and the waterproof effect is greatly reduced when the power cable is punctured by plants or during transportation.
The utility model provides the following technical scheme:
an independent liner layer high water blocking medium voltage power cable comprising:
the utility model provides a plurality of heart yearns of electrically conductive usefulness, a plurality of circumference between the heart yearn is equipped with the band, and the band intussuseption is filled with the filling layer to heart yearn protection usefulness, the circumference outer wall of band is fixed with first parcel layer, and the circumference outer wall of first parcel layer is equipped with the second parcel layer, and it has the inflation resin to fill between first parcel layer and the second parcel layer, the circumference outer wall bonding of second parcel layer has the anti-thorn layer, and the anti-thorn layer is wavy, the circumference outer wall bonding of anti-thorn layer has the third parcel layer, is equipped with the rubber strip to the anti-thorn layer support usefulness between third parcel layer and the second parcel layer, and the circumference outer wall of third parcel layer is equipped with the oversheath.
As a still further scheme of the utility model, armor is fixedly connected between the outer sheath and the third wrapping layer.
As a still further scheme of the utility model, the core wire comprises a conductor, the circumference outer wall of the conductor is fixedly connected with a first waterproof layer, the circumference outer wall of the first waterproof layer is fixedly connected with a first shielding layer, the circumference outer wall of the first shielding layer is fixedly connected with an insulating layer, and the circumference outer wall of the insulating layer is fixedly connected with a second shielding layer.
As a still further scheme of the utility model, the first shielding layer and the second shielding layer are both semiconductor shielding, and the insulating layer is made of a water tree resistant XLPE insulating material.
As a still further aspect of the present utility model, the filling layer is a super absorbent rope.
As a still further aspect of the present utility model, the first wrapping layer, the second wrapping layer and the third wrapping layer are all polyethylene.
As a still further scheme of the utility model, the stab-resistant layer is formed by blending ultra-high strength ultra-high density polyethylene chopped yarns and aramid chopped yarns.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.
According to the utility model, the anti-puncture layer is arranged between the second wrapping layer and the third wrapping layer, so that accidents or plants can be protected by the anti-puncture layer, water leakage caused by the fact that the accidents or plants puncture the cable is avoided, and the waterproof effect is improved;
according to the waterproof cable, the expansion resin is arranged between the first wrapping layer and the second wrapping layer, so that when the cable is punctured, the expansion resin expands in volume through water absorption, and particles after water absorption have elasticity and deform and squeeze into the water leakage holes, so that the waterproof effect is improved;
according to the utility model, the anti-puncture layer is wavy and is filled with the rubber strip, so that the wavy anti-puncture layer is matched with the rubber strip, and the anti-puncture layer has good buffering property when being punctured, and the anti-puncture effect is improved.
According to the utility model, the anti-puncturing layer is used for protecting accidents or plants, so that the phenomenon of water leakage caused by puncturing of cables by the accidents or plants is avoided, the waterproof effect is improved, meanwhile, the volume of the expanded resin is expanded through water absorption, particles after water absorption have elasticity and deform and squeeze into water leakage holes, the waterproof effect is improved, and the wavy anti-puncturing layer is matched with the rubber strips, so that good buffering performance can be realized when the cable is punctured, and the anti-puncturing effect is improved.
Drawings
Fig. 1 is a schematic three-dimensional structure of an independent lining layer high-water-blocking medium-voltage power cable according to an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a high-water-blocking medium-voltage power cable with an independent liner layer according to an embodiment of the present utility model;
fig. 3 is a schematic plan view of a high-water-blocking medium-voltage power cable with an independent lining layer according to an embodiment of the present utility model.
Reference numerals:
1. a conductor; 2. a first waterproof layer; 3. a first shielding layer; 4. an insulating layer; 5. a second shielding layer; 6. a filling layer; 7. a belting; 8. a first wrapping layer; 9. an expansion resin; 10. a second wrapping layer; 11. an anti-puncture layer; 12. a third wrapping layer; 13. armoring; 14. an outer sheath.
Detailed Description
Embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.
In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present utility model are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present utility model, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present utility model.
In embodiments of the present utility model, the terms "first," "second," and the like 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In the embodiment of the present utility model, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
Example 1
Referring to fig. 1-3, a self-contained liner high water blocking medium voltage power cable comprising: the utility model provides a plurality of heart yearns that electrically conduct usefulness, circumference between a plurality of heart yearns is equipped with band 7, band 7 intussuseption is filled with the filling layer 6 to heart yearn protection usefulness, filling layer 6 is superstrong water absorption rope, the circumference outer wall of band 7 is fixed with first parcel layer 8, the circumference outer wall of first parcel layer 8 is equipped with second parcel layer 10, it has expansion resin 9 to fill between first parcel layer 8 and the second parcel layer 10, when the rainwater enters into inside, expansion resin 9 absorbs moisture, then the volume expands, granule after the water absorption has elasticity, warp and squeeze into the hole that leaks, play waterproof effect, the circumference outer wall of second parcel layer 10 bonds and has anti-thorn layer 11, anti-thorn layer 11 is wavy, wavy anti-thorn layer 11 can have certain buffering when making to receive the thorn, improve the protection effect, the circumference outer wall of anti-thorn layer 11 bonds and has third parcel layer 12, be equipped with the rubber strip to anti-thorn layer 11 support, the circumference of third parcel layer 12 is equipped with oversheath sheath 14, anti-thorn layer 11 is strong polyethylene super-spun yarn.
Example 2
Referring to fig. 1-3, a self-contained liner high water blocking medium voltage power cable comprising:
the utility model provides a plurality of heart yearns that electrically conduct usefulness, circumference between a plurality of heart yearns is equipped with band 7, band 7 intussuseption is filled with the filling layer 6 to heart yearn protection usefulness, filling layer 6 is superstrong water absorption rope, the circumference outer wall of band 7 is fixed with first parcel layer 8, the circumference outer wall of first parcel layer 8 is equipped with second parcel layer 10, it has expansion resin 9 to fill between first parcel layer 8 and the second parcel layer 10, when the rainwater enters into inside, expansion resin 9 absorbs moisture, then the volume expands, granule after the water absorption has elasticity, warp and squeeze into the hole that leaks, play waterproof effect, the circumference outer wall of second parcel layer 10 bonds and has anti-thorn layer 11, anti-thorn layer 11 is wavy, wavy anti-thorn layer 11 can have certain buffering when making to receive the thorn, improve the protection effect, the circumference outer wall of anti-thorn layer 11 bonds and has third parcel layer 12, be equipped with the rubber strip to anti-thorn layer 11 support, the circumference of third parcel layer 12 is equipped with oversheath sheath 14, anti-thorn layer 11 is strong polyethylene super-spun yarn.
In the utility model, an armor 13 is fixedly connected between an outer sheath 14 and a third wrapping layer 12, and the armor 13 is formed by additionally arranging a layer of metal protection on the outermost surface of a product so as to prevent an internal utility layer from being damaged during transportation and installation.
It should be noted that, the core wire includes conductor 1, and the circumference outer wall fixedly connected with first waterproof layer 2 of conductor 1, the circumference outer wall fixedly connected with first shielding layer 3 of first waterproof layer 2, the circumference outer wall fixedly connected with insulating layer 4 of first shielding layer 3, the circumference outer wall fixedly connected with second shielding layer 5 of insulating layer 4, first waterproof layer 2 is last waterproof layer, is the expansion water blocking strip that absorbs water.
In the utility model, the first shielding layer 3 and the second shielding layer 5 are both semiconductor shielding, and the insulating layer 4 is a water tree resistant XLPE insulating material.
In particular, the first wrapping 8, the second wrapping 10 and the third wrapping 12 are all polyethylene.
The working principle and the using flow of the technical scheme are as follows: when the outer sheath 14 is used for protecting the internal materials and is subjected to piercing, the piercing is blocked by the piercing-preventing layer 11 when the outer sheath 14 and the armor 13 are pierced, meanwhile, the rubber strips are arranged for buffering the piercing, the protection effect is improved, when the piercing is further deep, the rainwater enters the inside, the expansion resin 9 absorbs the moisture, the volume of the particles is expanded, the particles after water absorption are elastic, and the particles deform and squeeze into the water leakage holes, so that the waterproof effect is achieved.
The present utility model is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present utility model, and the changes or substitutions are intended to be covered by the scope of the present utility model; embodiments of the utility model and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (7)
1. Independent lining layer high water resistant medium voltage power cable, characterized by comprising:
the utility model provides a plurality of heart yearns of electrically conductive usefulness, a plurality of circumference between the heart yearn is equipped with band (7), band (7) intussuseption is filled with filling layer (6) to heart yearn protection usefulness, the circumference outer wall of band (7) is fixed with first parcel layer (8), and the circumference outer wall of first parcel layer (8) is equipped with second parcel layer (10), and it has expansion resin (9) to fill between first parcel layer (8) and second parcel layer (10), the circumference outer wall bonding of second parcel layer (10) has anti-thorn layer (11), and anti-thorn layer (11) are the wavy, the circumference outer wall bonding of anti-thorn layer (11) has third parcel layer (12), is equipped with the rubber strip to anti-thorn layer (11) support usefulness between third parcel layer (12) and the second parcel layer (10), and the circumference outer wall of third parcel layer (12) is equipped with oversheath (14).
2. The independent lining layer high water blocking medium voltage power cable according to claim 1, wherein an armor (13) is fixedly connected between the outer sheath (14) and the third wrapping layer (12).
3. The independent lining layer high water blocking medium voltage power cable according to claim 1, wherein the core wire comprises a conductor (1), a first waterproof layer (2) is fixedly connected to the circumferential outer wall of the conductor (1), a first shielding layer (3) is fixedly connected to the circumferential outer wall of the first waterproof layer (2), an insulating layer (4) is fixedly connected to the circumferential outer wall of the first shielding layer (3), and a second shielding layer (5) is fixedly connected to the circumferential outer wall of the insulating layer (4).
4. The independent lining layer high water blocking medium voltage power cable according to claim 3, wherein the first shielding layer (3) and the second shielding layer (5) are both semi-conductive shielding, and the insulating layer (4) is a water tree resistant XLPE insulating material.
5. The independent lining layer high water blocking medium voltage power cable according to claim 1, wherein the filler layer (6) is a super absorbent rope.
6. The self-contained liner high water-blocking medium voltage power cable of claim 3, wherein the first, second and third jacket layers (8, 10, 12) are each polyethylene.
7. The independent lining layer high water blocking medium voltage power cable according to claim 1, wherein the stab resistant layer (11) is a blend of ultra high strength ultra high density polyethylene chopped yarn and aramid chopped yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321226961.5U CN219676932U (en) | 2023-05-20 | 2023-05-20 | Independent lining layer high-water-resistance medium-voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321226961.5U CN219676932U (en) | 2023-05-20 | 2023-05-20 | Independent lining layer high-water-resistance medium-voltage power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219676932U true CN219676932U (en) | 2023-09-12 |
Family
ID=87924508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321226961.5U Active CN219676932U (en) | 2023-05-20 | 2023-05-20 | Independent lining layer high-water-resistance medium-voltage power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219676932U (en) |
-
2023
- 2023-05-20 CN CN202321226961.5U patent/CN219676932U/en active Active
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