CN114220591A - Capacity-increasable overhead insulated cable - Google Patents
Capacity-increasable overhead insulated cable Download PDFInfo
- Publication number
- CN114220591A CN114220591A CN202111622032.1A CN202111622032A CN114220591A CN 114220591 A CN114220591 A CN 114220591A CN 202111622032 A CN202111622032 A CN 202111622032A CN 114220591 A CN114220591 A CN 114220591A
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- CN
- China
- Prior art keywords
- layer
- heat
- wall
- heat dissipation
- ice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 40
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 230000005855 radiation Effects 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 229920002725 thermoplastic elastomer Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 79
- 239000011241 protective layer Substances 0.000 abstract description 20
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920006465 Styrenic thermoplastic elastomer Polymers 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/428—Heat conduction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/008—Power cables for overhead application
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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
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a capacity-increasing overhead insulated cable which comprises a cable body, wherein the cable body comprises a supporting rod, a protective layer, a support, a filling layer and a single-core cable, the supporting rod is arranged at the center of the inner side of the protective layer, the center of the section of the supporting rod is coincident with the center of the section of the protective layer, the support is arranged on the outer wall of the supporting rod, the other end of the support is connected with the inner wall of the protective layer, the filling layer is arranged between every two adjacent supports and between the inner walls of the protective layer, the single-core cable is arranged in the filling layer, the protective layer comprises an anti-ice and snow coating, a radiation heat-dissipation cooling layer, a wear-resistant heat-dissipation layer, a spring and a heat conduction layer, and the radiation heat-dissipation cooling layer is arranged on the outer wall of the wear-resistant heat-dissipation layer. The ice-snow protection device can effectively avoid the situation that the ice-snow protection device is damaged due to overlarge gravity caused by the condensation of ice and snow on the ice-snow protection device, can also effectively play a role in heat dissipation, prolongs the service life and has strong practicability.
Description
Technical Field
The invention relates to the technical field of cables, in particular to an overhead insulated cable capable of increasing capacity.
Background
With the rapid development of national economy, the demand of electric power in China is in a continuous increasing trend, and particularly, the electric power load in the eastern region is continuously increased, so that the receiving end of the urban distribution network bears larger load. Because of the increasing shortage of line corridor resources and the increasing of corridor floor pressure, it is more and more difficult to build a new transmission line in a city, and the load channel often has a 'neck-sticking' phenomenon under the influence of the limiting factors of the transmission line corridor and the like, so that the load can not be effectively sent to a receiving end. In order to solve the contradiction between the increasing electric load and the difficulty in cable line construction, the research direction can only be shifted from the expansion of the power grid to the potential excavation of the existing network and the improvement of the transmission capacity of the existing power transmission network.
However, in winter, ice and snow are easily condensed on the surface of the existing capacity-increasing overhead insulated cable, so that the gravity of the cable is increased to cause the cable to be damaged, the cable cannot be effectively cooled in high-temperature weather, and the cable is easily damaged due to overhigh temperature; therefore, the existing use requirements are not satisfied.
Disclosure of Invention
The present invention is directed to a scalable overhead insulated cable to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an aerial insulated cable capable of increasing capacity comprises a cable body, wherein the cable body comprises a supporting rod, a protective layer, a support, a filling layer and a single-core cable, the supporting rod is arranged at the center of the inner side of the protective layer, the center of the cross section of the supporting rod coincides with the center of the cross section of the protective layer, the support is mounted on the outer wall of the supporting rod and is distributed on the outer wall of the supporting rod in an annular array manner, the other end of the support is connected with the inner wall of the protective layer, the filling layer is arranged between every two adjacent supports and between the two adjacent supports and the inner wall of the protective layer, the single-core cable is arranged in the filling layer, the protective layer comprises an anti-ice and snow coating, a radiation heat-dissipation cooling layer, a wear-resistant heat-dissipation layer, a spring and a heat conduction layer, the outer wall of the wear-resistant heat-dissipation cooling layer is provided with the radiation heat-dissipation cooling layer, the outer wall of the radiation heat-dissipation cooling layer is provided with the anti-ice and snow coating, the inboard on heat dissipation layer is provided with the heat-conducting layer, be provided with the spring between the outer wall of heat-conducting layer and the inner wall on wear-resisting heat dissipation layer, single core cable includes water-blocking layer, insulating layer, heat-sink shell, stranding layer and conductive core, water-blocking layer, insulating layer, heat-sink shell, stranding layer and conductive core set gradually from outside to inside.
Preferably, the filling layer is specifically a fiber paste.
Preferably, the heat absorbing layer is specifically a styrenic thermoplastic elastomer (SBC) material.
Preferably, the thickness of the ice and snow prevention coating layer is 1 mm-2 mm.
Preferably, the thickness of the radiation cooling layer is 1 mm-2 mm.
Preferably, the thickness of the wear-resistant heat dissipation layer is 2 mm-3 mm.
Compared with the prior art, the invention has the beneficial effects that:
(1) the anti-ice coating can effectively avoid the condition that the ice and snow are condensed on the anti-ice coating and are damaged due to overlarge gravity, and the service life of the anti-ice coating is prolonged.
(2) According to the invention, through the matching arrangement of a series of structures such as the heat absorption layer, the heat conduction layer, the wear-resistant heat dissipation layer and the radiation heat dissipation and cooling layer, the heat absorption layer absorbs the heat generated by the conductive wire core and transfers the heat to the heat conduction layer, the heat conduction layer indirectly transfers the heat to the wear-resistant heat dissipation layer for heat dissipation, and the radiation heat dissipation and cooling layer can radiate the heat on the wear-resistant heat dissipation layer and has heat insulation and waterproof effects, so that the heat can be effectively dissipated from the conductive wire core, and the service life of the invention is further prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a protective layer of the present invention;
fig. 3 is a cross-sectional view of a monocable according to the invention.
In the figure: 1. a cable body; 11. a support bar; 12. a protective layer; 1201. coating for preventing ice and snow; 1202. a radiation heat-dissipation cooling layer; 1203. a wear-resistant heat dissipation layer; 1204. a spring; 1205. a heat conductive layer; 13. a support; 14. a filling layer; 15. a single core cable; 1501. a water resistant layer; 1502. an insulating layer; 1503. a heat absorbing layer; 1504. a stranding layer; 1505. a conductive core.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element 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," "disposed," "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 meanings 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, an embodiment of the present invention is shown: an aerial insulated cable capable of increasing capacity comprises a cable body 1, wherein the cable body 1 comprises a support rod 11, a protective layer 12, a support 13, a filling layer 14 and a single-core cable 15, the support rod 11 is arranged at the center of the inner side of the protective layer 12, the center of the cross section of the support rod 11 coincides with the center of the cross section of the protective layer 12, the support 13 is installed on the outer wall of the support rod 11, the support 13 is distributed on the outer wall of the support rod 11 in an annular array mode, the other end of the support 13 is connected with the inner wall of the protective layer 12, the filling layer 14 is arranged between every two adjacent supports 13 and the inner wall of the protective layer 12, the single-core cable 15 is arranged in the filling layer 14, the protective layer 12 comprises an ice and snow preventing coating 1201, a radiation heat dissipation cooling layer 1202, a wear-resistant heat dissipation layer 1203, a spring 1204 and a heat conduction layer 1205, a radiation heat dissipation cooling layer 1202 is arranged on the outer wall of the wear-resistant heat dissipation cooling layer 1203, the single-core cable 15 comprises a water-resistant layer 1501, an insulating layer 1502, a heat-absorbing layer 1503, a twisting layer 1504 and a conductive wire core 1505, wherein the water-resistant layer 1501, the insulating layer 1502, the heat-absorbing layer 1503, the twisting layer 1504 and the conductive wire core 1505 are sequentially arranged from outside to inside, a filling layer 14 is specifically fiber paste, the heat-absorbing layer is specifically a styrene thermoplastic SBC elastomer material, the thickness of the ice and snow prevention coating 1201 is 1 mm-2 mm, the thickness of the radiation heat dissipation cooling layer 1202 is 1 mm-2 mm, and the thickness of the wear-resistant heat dissipation layer 1203 is 2 mm-3 mm.
The working principle is as follows: according to the invention, through the arrangement of the anti-ice coating 1201, the anti-ice coating 1201 can effectively prevent ice and snow from being condensed on the anti-ice coating 1201 to cause the damage of the anti-ice coating caused by overlarge gravity, so that the service life of the anti-ice coating 1201 is prolonged, through the matching arrangement of a series of structures, such as the heat absorption layer 1503, the heat conduction layer 1205, the wear-resistant heat dissipation layer 1203, the radiation heat dissipation cooling layer 1202 and the like, the heat generated by the conductive wire core 1505 is absorbed by the heat absorption layer 1503 and is transferred to the heat conduction layer 1205, the heat conduction layer 1205 indirectly transfers the heat to the wear-resistant heat dissipation layer 1203 for heat dissipation, and the radiation heat dissipation cooling layer 1202 can radiate the heat on the wear-resistant heat dissipation layer 1203 and has heat insulation and waterproof effects, so that the heat of the conductive wire core 1505 can be effectively dissipated, and the service life of the anti-ice coating 1201 is further prolonged.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A compatibilizable overhead insulated cable comprising a cable body (1), characterized in that: cable body (1) is including bracing piece (11), inoxidizing coating (12), support (13), filling layer (14) and single core cable (15), the inboard central point of inoxidizing coating (12) puts and is provided with bracing piece (11), and the cross-section central point of bracing piece (11) coincides with the cross-section central point of inoxidizing coating (12), install support (13) on the outer wall of bracing piece (11), support (13) are cyclic annular array and distribute on the outer wall of bracing piece (11), and the other end of support (13) and the interior wall connection of inoxidizing coating (12), be provided with filling layer (14) between support (13) two liang of neighbours and between the inner wall of inoxidizing coating (12), be provided with single core cable (15) in filling layer (14), inoxidizing coating (12) are including anti-icing coating (1201), radiation cooling layer (1202), wear-resistant heat dissipation layer (1203), Spring (1204) and heat-conducting layer (1205), be provided with radiation heat dissipation cooling layer (1202) on the outer wall of wear-resisting heat dissipation layer (1203), be provided with anti-ice and snow coating (1201) on the outer wall of radiation heat dissipation cooling layer (1202), the inboard of heat dissipation layer is provided with heat-conducting layer (1205), be provided with spring (1204) between the outer wall of heat-conducting layer (1205) and the inner wall of wear-resisting heat dissipation layer (1203), single core cable (15) include water blocking layer (1501), insulating layer (1502), heat-absorbing layer (1503), splice layer (1504) and electrically conductive sinle silk (1505), water blocking layer (1501), insulating layer (1502), heat-absorbing layer (1503), splice layer (1504) and electrically conductive sinle silk (1505) set gradually from outside to inside.
2. A compatibilizable overhead insulated cable according to claim 1, wherein: the filling layer (14) is particularly fiber paste.
3. A compatibilizable overhead insulated cable according to claim 1, wherein: the heat absorbing layer (1503) is specifically a styrene thermoplastic elastomer (SBC) material.
4. A compatibilizable overhead insulated cable according to claim 1, wherein: the thickness of the ice and snow prevention coating (1201) is 1 mm-2 mm.
5. A compatibilizable overhead insulated cable according to claim 1, wherein: the thickness of the radiation cooling layer (1202) is 1 mm-2 mm.
6. A compatibilizable overhead insulated cable according to claim 1, wherein: the thickness of the wear-resistant heat dissipation layer (1203) is 2 mm-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111622032.1A CN114220591A (en) | 2021-12-28 | 2021-12-28 | Capacity-increasable overhead insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111622032.1A CN114220591A (en) | 2021-12-28 | 2021-12-28 | Capacity-increasable overhead insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114220591A true CN114220591A (en) | 2022-03-22 |
Family
ID=80706309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111622032.1A Pending CN114220591A (en) | 2021-12-28 | 2021-12-28 | Capacity-increasable overhead insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114220591A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114937519A (en) * | 2022-06-15 | 2022-08-23 | 贵阳中安科技集团有限公司 | Spring cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206672677U (en) * | 2016-11-17 | 2017-11-24 | 国网新疆电力公司和田供电公司 | The electric power cable of efficient wear-proof |
| CN209388747U (en) * | 2018-12-29 | 2019-09-13 | 上海金友金弘智能电气股份有限公司 | A kind of photovoltaic cable suitable for resistance to ozone environment |
| CN210516293U (en) * | 2019-09-12 | 2020-05-12 | 天津市飞亚电线电缆有限公司 | Acid and alkali corrosion resistant cable |
| CN210516305U (en) * | 2019-09-12 | 2020-05-12 | 天津市飞亚电线电缆有限公司 | Cable easy to dissipate heat |
| CN210837271U (en) * | 2019-12-05 | 2020-06-23 | 陕西电力电缆制造有限公司 | Cable with anti-icing function |
| CN212461230U (en) * | 2020-07-14 | 2021-02-02 | 江西小桥电线电缆有限公司 | Capacity-increasable overhead insulated cable |
-
2021
- 2021-12-28 CN CN202111622032.1A patent/CN114220591A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206672677U (en) * | 2016-11-17 | 2017-11-24 | 国网新疆电力公司和田供电公司 | The electric power cable of efficient wear-proof |
| CN209388747U (en) * | 2018-12-29 | 2019-09-13 | 上海金友金弘智能电气股份有限公司 | A kind of photovoltaic cable suitable for resistance to ozone environment |
| CN210516293U (en) * | 2019-09-12 | 2020-05-12 | 天津市飞亚电线电缆有限公司 | Acid and alkali corrosion resistant cable |
| CN210516305U (en) * | 2019-09-12 | 2020-05-12 | 天津市飞亚电线电缆有限公司 | Cable easy to dissipate heat |
| CN210837271U (en) * | 2019-12-05 | 2020-06-23 | 陕西电力电缆制造有限公司 | Cable with anti-icing function |
| CN212461230U (en) * | 2020-07-14 | 2021-02-02 | 江西小桥电线电缆有限公司 | Capacity-increasable overhead insulated cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114937519A (en) * | 2022-06-15 | 2022-08-23 | 贵阳中安科技集团有限公司 | Spring cable |
| CN114937519B (en) * | 2022-06-15 | 2023-06-30 | 贵阳中安科技集团有限公司 | Spring cable |
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