CN116313275B - High-current-carrying capacity cable - Google Patents
High-current-carrying capacity cable Download PDFInfo
- Publication number
- CN116313275B CN116313275B CN202310480250.9A CN202310480250A CN116313275B CN 116313275 B CN116313275 B CN 116313275B CN 202310480250 A CN202310480250 A CN 202310480250A CN 116313275 B CN116313275 B CN 116313275B
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- CN
- China
- Prior art keywords
- adapter
- cable
- layer
- carrying capacity
- cooling
- 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.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000001816 cooling Methods 0.000 claims abstract description 72
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 210000001503 joint Anatomy 0.000 claims description 20
- 230000000149 penetrating effect Effects 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 238000012856 packing Methods 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000004078 waterproofing Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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
- H01B7/42—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
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
-
- 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
-
- 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 high-current-carrying capacity cable, which comprises a cable body and a sealing assembly, wherein the cable body comprises a cable core, a heat conducting layer, a cooling layer, a water flow layer, a heat insulating layer and a sheath which are sequentially arranged from inside to outside; the sealing assembly seals a water flow layer in the cable body and comprises a cable core tightening nut, an adapter, a sheath tightening nut and an adapter; the adapter is characterized in that two ends of the adapter are provided with conical first tightening heads, one side, close to the adapter, of the inner cavity of the adapter, which is connected with the adapter, is provided with conical second tightening heads, and one end, far away from the adapter, of the adapter, which is connected with the adapter, is provided with conical third tightening heads. According to the invention, the cold water circulation is directly arranged in the cable body, so that the cooling effect is obvious, the cable bearing flow is higher, the effect is obvious, and the practical value is higher.
Description
Technical Field
The invention belongs to the technical field of cables, and particularly relates to a high-current-carrying capacity cable.
Background
Factors affecting the current carrying capacity of the cable generally have the following points: 1. the cable is required to run for a long period of time, and at this time, a normal working temperature is provided, and the temperature directly influences the current-carrying capacity of the cable; 2. the laying environment of the cable can also influence the current carrying capacity of the cable, such as ambient air, soil humidity difference and the like; 3. the larger the conductor cross-sectional area of the cable, the greater the current carrying capacity. The smaller the cable resistivity, the smaller the current-carrying capacity is; 4. if the environmental heat dissipation is too poor in the process of laying the cable, the thermal resistance of the cable is increased, so that the current-carrying capacity of the cable is reduced.
In order to increase the current-carrying capacity of the cable, the heat dissipation problem of the cable must be solved first, and how to directly exchange heat with the inside of the cable core, so that the rapid heat dissipation is a main problem of increasing the current-carrying capacity of the cable.
In the prior art, a water cooling mode is adopted to cool the cable, but the water cooling cannot circulate in the cable, so that the cooling effect is not obvious after long-time use, and the current-carrying capacity cannot be improved.
Disclosure of Invention
An object of the application is to provide a high current-carrying capacity cable, through with the direct setting of cold water circulation inside the cable body, the cooling effect is showing, and the cable bears the weight of the flow higher.
In order to achieve the above purpose, the present application provides the following technical solutions: the high-current-carrying capacity cable comprises a cable body and a sealing assembly, wherein the cable body comprises a cable core, a heat conducting layer, a cooling layer, a water flow layer, a heat insulating layer and a sheath which are sequentially arranged from inside to outside;
the sealing assembly seals a water flow layer in the cable body and comprises a cable core tightening nut, an adapter, a sheath tightening nut and an adapter;
the utility model discloses a cable core tightening nut, including the adapter, the adapter both ends are provided with conical first tightening head, cable core tightening nut and the one end threaded connection of adapter, the other end and the crossover sub threaded connection of adapter, the adapter inner chamber is close to one side of being connected with the adapter and is provided with conical second tightening head, the crossover sub is kept away from the one end of being connected with the adapter and is provided with conical third tightening head, the sheath tightening nut with the one end threaded connection of third tightening head is set up to the crossover sub.
Preferably, the cooling layer is filled with a cold gel.
Preferably, the circumference evenly distributed of rivers layer is provided with a plurality of supporting ribs, supporting rib both ends are fixed connection cooling layer and insulating layer respectively.
Preferably, a cable core insulation waterproof sealing sleeve penetrating through the cable core is arranged inside one end of the butt joint connected with the cable core tightening nut.
Preferably, a cooling insulation waterproof sealing sleeve penetrating through the cooling layer is arranged inside one end of the butt joint connected with the adapter.
Preferably, a sheath insulation waterproof sealing sleeve penetrating through the sheath is arranged inside one end of the adapter, which is connected with the sheath tightening nut.
Preferably, the outer wall of the middle part of the adapter is provided with a water pipe joint communicated with the inner cavity of the adapter.
Preferably, the water pipe connector is connected with a water cooling circulating machine, and cold circulating water generated by the water cooling circulating machine enters the water flow layer through the water pipe connector to cool the cooling layer and the cable core.
Preferably, a temperature sensor is arranged inside the tail end in the cooling layer in a penetrating way and is used for detecting the temperature of the cold gel in the cooling layer.
Preferably, when the temperature detected by the temperature sensor exceeds a highest temperature threshold, the water cooling circulation machine is started to perform cold circulation on water in the water cooling layer, and when the temperature detected by the temperature sensor reaches a lowest temperature threshold, the water cooling circulation machine is closed.
In summary, the invention has the technical effects and advantages that:
1. according to the invention, both ends of the cable body are sealed by the sealing assemblies, the water inlet and outlet pipes of the water cooling circulation machine are respectively connected with the water pipe joints at both ends, so that cold water of the water cooling circulation machine enters the adapter through the pipe joints, and as both ends of the adapter are sealed, the cold water can only enter the water flow layer for cold circulation, thereby cooling the cooling layer, and then the cooling layer exchanges heat with the heat conduction layer, thereby rapidly cooling the cable core, and enabling the cable to bear higher flow;
2. according to the invention, when the temperature of the cable core is raised due to overhigh current-carrying capacity, the low temperature stored in the cold gel layer firstly carries out primary cooling on the cable, once the temperature of the cable core is continuously raised, the temperature detected by the temperature sensor exceeds the highest temperature threshold, the water cooling circulation machine is started, and the cold circulation water carries out rapid cooling on the cooling layer and the cable core through the water flow layer, so that the current-carrying capacity is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a high-current-carrying cable;
FIG. 2 is a schematic cross-sectional view of a high-current-carrying cable;
FIG. 3 is a stripping diagram of a high current capacity cable body;
FIG. 4 is a front view of a high-current-carrying cable body in a stripping mode;
FIG. 5 is a connection explosion diagram of a high-current-carrying cable waterproofing assembly;
fig. 6 is a schematic structural view of a cable core tightening nut of the high-current-carrying capacity cable waterproof assembly;
fig. 7 is a schematic structural view of a butt joint of a high-current-carrying cable waterproof assembly;
fig. 8 is a schematic structural view of a high-current-carrying capacity cable waterproofing assembly adapter;
fig. 9 is a schematic cross-sectional view of a high-current-carrying cable waterproofing assembly crossover sub.
In the figure: 1. a cable core; 2. a heat conducting layer; 3. a cooling layer; 3. a water flow layer; 4. a water flow layer; 5. a thermal insulation layer; 6. a sheath; 7. cold gel; 8. a support rib; 9. the cable core is tightly pressed against the nut; 10. a conversion joint; 11. the sheath tightly presses the nut; 12. butt joint; 13. a water pipe joint; 14. cable core insulating waterproof sealing sleeve; 15. cooling the insulating waterproof sealing sleeve; 16. sheath insulation waterproof sealing sleeve; 17. a first tightening head; 18. a third tightening head; 19. and a second tightening head.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The high-current-carrying capacity cable comprises a cable body and a sealing assembly, wherein the cable body comprises a cable core 1, a heat conducting layer 2, a cooling layer 3, a water flow layer 4, a heat insulating layer 5 and a sheath 6 which are sequentially arranged from inside to outside, cold gel 7 is filled in the cooling layer 3, a plurality of supporting ribs 8 are uniformly distributed on the circumference of the water flow layer 4, and two ends of each supporting rib 8 are fixedly connected with the cooling layer 3 and the heat insulating layer 5 respectively.
The sealing component seals the water flow layer 4 in the cable body, so that water in the water flow layer 4 can smoothly cool the cooling layer 3, and comprises a cable core tightening nut 9, an adapter 10, a sheath tightening nut 11 and an adapter 12;
the two ends of the butt joint 12 are provided with conical first tightening heads 17, the cable core tightening nuts 9 are in threaded connection with one ends of the butt joint 12, and the cable core insulating waterproof sealing sleeves 14 penetrating through the cable cores 1 are arranged inside one ends of the butt joint 12 connected with the cable core tightening nuts, so that when the cable core tightening nuts 9 are screwed, the first tightening heads 17 are extruded to enable the first tightening heads to compress the waterproof cable core insulating waterproof sealing sleeves 14, further compress the cable cores 1, fix the cable cores 1 and insulate and seal the cable cores.
The other end of the butt joint 12 is in threaded connection with the adapter 10, a conical second tightening head 19 is arranged on one side, close to the connection with the butt joint 12, of the inner cavity of the adapter 10, a cooling insulation waterproof sealing sleeve 15 penetrating through the cooling layer 3 is arranged inside one end, connected with the adapter 10, of the butt joint 12, so that when the adapter 10 is screwed tightly, the second tightening head 19 is extruded to enable the second tightening head 19 to be tightly pressed against the cooling insulation waterproof sealing sleeve 15, further the cooling layer 3 is tightly pressed, the tail end of a cable body is further fixed, and the cooling layer 3 is waterproof sealed.
The waterproof sealing adapter 10 is provided with conical third packing head 18 far away from the one end of being connected with the butt joint 12, and the sheath packing nut 11 sets up the one end threaded connection of third packing head 18 with the adapter 10, and the adapter 10 is provided with the sheath insulating waterproof seal cover 16 that passes sheath 6 with the one end that sheath packing nut 11 is connected inside to when sheath packing nut 11 screws, extrusion third packing head 18 makes it compress tightly sheath insulating waterproof seal cover 16, and then compresses tightly sheath 6, further fixes cable body end, and waterproof seal to sheath 3 and rivers layer 4.
The outer wall of the middle part of the adapter 10 is provided with a water pipe joint 13 communicated with the inner cavity of the adapter 10, the water pipe joint 13 is connected with a water cooling circulation machine, and cold circulating water generated by the water cooling circulation machine enters the water flow layer 4 through the water pipe joint 13 to cool the cooling layer 3 and the cable core 1.
The structures of the tightening head and the tightening nut belong to the prior art, and are not repeated, and specific reference is made to a waterproof joint in the prior art.
Through the arrangement, both ends of the cable body are sealed by the sealing assemblies, water pipe connectors at both ends are respectively connected with water inlet and outlet pipes of the water cooling circulation machine, so that cold water of the water cooling circulation machine enters the adapter 10 through the pipe connector 13, and cold water can only enter the water flow layer 4 for cold circulation due to the fact that both ends of the adapter 10 are sealed, so that the cooling layer 3 is cooled, the cooling layer 3 and the heat conducting layer 2 are subjected to heat exchange, the cable core 1 is cooled rapidly, and the cable can bear higher flow.
Example 2
Referring to fig. 2, in order to further improve the heat dissipation effect of the cable and the current-carrying capacity, a temperature sensor is arranged inside the tail end of the cooling layer 3 in a penetrating manner, and is used for detecting the temperature of the cold gel 7 in the cooling layer 3, when the temperature detected by the temperature sensor exceeds the highest temperature threshold, the water cooling circulation machine is started to perform cold circulation on the water in the water cooling layer 4, and when the temperature detected by the temperature sensor reaches the lowest temperature threshold, the water cooling circulation machine is closed.
The water cooling cycle machine belongs to the prior art and is not described in detail.
When the cable core 1 is heated due to overhigh current-carrying capacity, the low temperature stored by the cold gel 7 in the cooling layer 3 firstly carries out primary cooling on the cable 1, once the temperature of the cable core 1 is continuously increased, the temperature detected by the temperature sensor exceeds the highest temperature threshold, the water cooling circulation machine is started, and the cold circulation water carries out rapid cooling on the cooling layer 3 and the cable core 1 through the water flow layer 4, so that the current-carrying capacity is improved.
According to the invention, the cold water circulation is directly arranged in the cable body, so that the cooling effect is obvious, the cable bearing flow is higher, the effect is obvious, and the practical value is higher.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. The utility model provides a high current-carrying capacity cable, includes cable body and seal assembly, its characterized in that: the cable body comprises a cable core (1), a heat conducting layer (2), a cooling layer (3), a water flow layer (4), a heat insulating layer (5) and a sheath (6) which are sequentially arranged from inside to outside;
the sealing assembly seals a water flow layer (4) in the cable body and comprises a cable core tightening nut (9), an adapter (10), a sheath tightening nut (11) and an opposite joint (12);
the utility model discloses a cable core tightening nut, including butt joint (12), cable core tightening nut, adapter (12) and adapter (10), butt joint (12) both ends are provided with conical first tightening head (17), cable core tightening nut (9) and one end threaded connection of butt joint (12), the other end and the adapter (10) threaded connection of adapter (10) inner chamber is close to one side of being connected with butt joint (12) and is provided with conical second tightening head (19), the one end that adapter (10) kept away from and be connected with butt joint (12) is provided with conical third tightening head (18), sheath tightening nut (11) with adapter (10) set up one end threaded connection of third tightening head (18).
2. A high current carrying capacity cable according to claim 1, wherein: the cooling layer (3) is filled with cold gel (7).
3. A high current carrying capacity cable according to claim 2, wherein: the water flow layer (4) is characterized in that a plurality of supporting ribs (8) are uniformly distributed on the circumference, and two ends of each supporting rib (8) are fixedly connected with the cooling layer (3) and the heat insulation layer (5) respectively.
4. A high current carrying capacity cable according to claim 3, wherein: one end of the butt joint (12) connected with the cable core tightening nut is internally provided with a cable core insulating waterproof sealing sleeve (14) penetrating through the cable core (1).
5. A high current carrying capacity cable according to claim 1, wherein: one end of the butt joint (12) connected with the adapter (10) is internally provided with a cooling insulation waterproof sealing sleeve (15) penetrating through the cooling layer (3).
6. A high current carrying capacity cable according to claim 1, wherein: one end of the adapter (10) connected with the sheath tightening nut (11) is internally provided with a sheath insulation waterproof sealing sleeve (16) penetrating through the sheath (6).
7. A high current carrying capacity cable according to claim 4, wherein: the outer wall of the middle part of the adapter (10) is provided with a water pipe joint (13) communicated with the inner cavity of the adapter (10).
8. A high current carrying capacity cable according to claim 1, wherein: the water pipe connector (13) is connected with a water cooling circulation machine, and cold circulating water generated by the water cooling circulation machine enters the water flow layer (4) through the water pipe connector (13) to cool the cooling layer (3) and the cable core (1).
9. A high current carrying capacity cable according to claim 1, wherein: and a temperature sensor is arranged inside the tail end of the cooling layer (3) in a penetrating way and is used for detecting the temperature of the cold gel (7) in the cooling layer (3).
10. A high current carrying capacity cable according to claim 9, wherein: when the temperature detected by the temperature sensor exceeds the highest temperature threshold, the water cooling circulation machine is started to perform cold circulation on water in the water cooling layer (4), and when the temperature detected by the temperature sensor reaches the lowest temperature threshold, the water cooling circulation machine is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310480250.9A CN116313275B (en) | 2023-04-28 | 2023-04-28 | High-current-carrying capacity cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310480250.9A CN116313275B (en) | 2023-04-28 | 2023-04-28 | High-current-carrying capacity cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116313275A CN116313275A (en) | 2023-06-23 |
| CN116313275B true CN116313275B (en) | 2024-04-05 |
Family
ID=86830772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310480250.9A Active CN116313275B (en) | 2023-04-28 | 2023-04-28 | High-current-carrying capacity cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116313275B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340751A (en) * | 2016-08-31 | 2017-01-18 | 浙江凯耀照明股份有限公司 | Waterproof cable joint |
| CN210897828U (en) * | 2019-12-19 | 2020-06-30 | 无锡市环球电器装备有限公司 | Cable connector |
| CN112310933A (en) * | 2019-07-30 | 2021-02-02 | 高邮市鼎天高分子材料有限公司 | High-efficient cable insulation cup joints device |
| CN214100802U (en) * | 2020-10-26 | 2021-08-31 | 浙江雷诺尔电气有限公司 | Flame-proof type stainless steel cable waterproof joint |
| CN214897758U (en) * | 2021-06-08 | 2021-11-26 | 英彪电缆有限公司 | High-temperature-resistant cable |
-
2023
- 2023-04-28 CN CN202310480250.9A patent/CN116313275B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340751A (en) * | 2016-08-31 | 2017-01-18 | 浙江凯耀照明股份有限公司 | Waterproof cable joint |
| CN112310933A (en) * | 2019-07-30 | 2021-02-02 | 高邮市鼎天高分子材料有限公司 | High-efficient cable insulation cup joints device |
| CN210897828U (en) * | 2019-12-19 | 2020-06-30 | 无锡市环球电器装备有限公司 | Cable connector |
| CN214100802U (en) * | 2020-10-26 | 2021-08-31 | 浙江雷诺尔电气有限公司 | Flame-proof type stainless steel cable waterproof joint |
| CN214897758U (en) * | 2021-06-08 | 2021-11-26 | 英彪电缆有限公司 | High-temperature-resistant cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116313275A (en) | 2023-06-23 |
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