CN212010511U - Sun-proof high temperature resistant type plastic insulated cable - Google Patents
Sun-proof high temperature resistant type plastic insulated cable Download PDFInfo
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- CN212010511U CN212010511U CN202020699228.5U CN202020699228U CN212010511U CN 212010511 U CN212010511 U CN 212010511U CN 202020699228 U CN202020699228 U CN 202020699228U CN 212010511 U CN212010511 U CN 212010511U
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Abstract
The utility model discloses a sun-proof high temperature resistant type plastic insulated cable, including center tube and many support bars, processing has a plurality of through-holes on the support bar, on the outer wall of center tube, all be provided with a plurality of heat dissipation archs on two sides of support bar, space between two adjacent support bars is one accepts the chamber, every is acceptd the intracavity and all is filled out and is equipped with heat conduction filler, be provided with the wire in the heat conduction filler, shielding layer and internal insulation layer have set gradually outward to the wire, it has set gradually the external insulation layer outward to accept the chamber, the heat dissipation layer, fire prevention insulating layer and protective sheath, be provided with the spiral stock solution pipe in the external insulation layer, the length direction interval of following the cable in the heat dissipation layer is provided with multiunit radiator unit, radiator unit includes the radiating. The utility model discloses long service life, the radiating effect is good, sun-proof high temperature resistant, and safe and reliable has apparent economic value and social value.
Description
Technical Field
The utility model relates to the technical field of cables, concretely relates to sun-proof high temperature resistant type plastic insulated cable.
Background
The plastic power cable is widely applied in China, is commonly used for urban underground power grids, leading-out lines of power stations, internal power supply of industrial and mining enterprises and underwater power transmission lines crossing rivers and sea, has a basic structure consisting of four parts, namely a wire core (a conducting wire), an insulating layer, a shielding layer and a protective layer, is low in cost and is suitable for large-scale use. In the power cable, the plastic insulating material is usually a cross-linked polyethylene material, the working temperature of the power cable made of the material is 90 ℃, and the power cable made of a PVC material with the working temperature of 70 ℃ has the characteristics of low cost and flame retardance.
When the plastic insulated cable is used, part of the plastic insulated cable is located outdoors and can be exposed to the sun for a long time, the internal temperature of the part of the cable can be quickly raised, and when the temperature is too high, the insulating layer on the outer layer of the soft copper conductor and the outer sheath can be embrittled and burst, so that the insulation of the cable is lost, the phenomena of line short circuit, breakdown and the like are caused, the service life of the plastic insulated cable is greatly reduced, the use cost of the cable is increased, meanwhile, a fire disaster can be caused in long-term use, and great potential safety hazards exist. Therefore, it is an objective need to develop a sun-proof high-temperature resistant plastic insulated cable with long service life, good heat dissipation effect, safety and reliability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a long service life, the radiating effect is good, safe and reliable's sun-proof high temperature resistant type plastic insulated cable.
The utility model aims to realize the purpose, which comprises a central tube and a plurality of supporting bars, wherein the circumference of the supporting bars is evenly distributed on the outer wall of the central tube, a plurality of through holes are processed on the supporting bars, a plurality of radiating bulges are arranged on the outer wall of the central tube and on the side surfaces of the supporting bars, the space between two adjacent supporting bars is a containing cavity, each containing cavity is filled with heat conducting filler, a lead is arranged in the heat conducting filler, a shielding layer and an inner insulating layer are sequentially arranged outside the lead, an outer insulating layer is sequentially arranged outside the containing cavity, the cable comprises a heat dissipation layer, a fireproof heat insulation layer and a protective sleeve, wherein a spiral liquid storage pipe is arranged in the outer insulation layer, a plurality of groups of heat dissipation assemblies are arranged in the heat dissipation layer at intervals along the length direction of the cable, each heat dissipation assembly comprises a heat dissipation ring and a heat dissipation rod, the circumference of each heat dissipation ring is uniformly distributed on the corresponding heat dissipation ring, the inner wall of each heat dissipation ring is tightly hooped on the outer insulation layer, and the outer end of each heat dissipation rod is supported on.
Further, the inner wall of the central tube is provided with a spiral guide plate.
Furthermore, a strip-shaped opening is processed on the radiating ring along the length direction of the cable.
Furthermore, a plurality of heat dissipation holes communicated with the heat dissipation layer are processed in the fireproof heat insulation layer and the protective sleeve.
Furthermore, a filter screen is arranged in the heat dissipation hole.
Furthermore, a plurality of hemispherical bulges are arranged on the heat dissipation rod.
Furthermore, a plurality of auxiliary radiating grooves are uniformly distributed on the outer wall of the fireproof heat-insulating layer along the circumference.
The utility model discloses set up the center tube in the central point of cable, can empty and can also pour into coolant liquid in the center tube, the heat that is used for absorbing the wire and gives off reduces the temperature around the wire, simultaneously, the support bar that sets up around the center tube also has the radiating function, in addition to the effect of heat dissipation arch and through-hole, can guarantee the heat equilibrium in the outer insulation layer, prevent the too high condition of local temperature; secondly, a spiral liquid storage pipe is arranged in the outer insulating layer, and cooling liquid is filled in the spiral liquid storage pipe, so that heat emitted by a conducting wire or transmitted from the outside due to sun exposure can be further absorbed; in addition, a heat dissipation layer is arranged between the outer insulating layer and the fireproof heat insulation layer, and heat entering the heat dissipation layer can be quickly and uniformly dissipated. To sum up, the utility model discloses in from inside to outside set gradually multiple heat radiation structure such as center tube heat dissipation, support bar heat dissipation, spiral stock solution pipe heat dissipation and heat dissipation layer heat dissipation, can be fully even and give off the heat that the wire produced or produced because of the sun insolate, guarantee the inside thermal equilibrium of whole cable, prevent that the cable from appearing because of the too high condition that is burnt out or is fired of local temperature, the security performance has improved the high temperature resistance ability of cable when obtaining the improvement, has prolonged the life of cable. The utility model discloses long service life, the radiating effect is good, sun-proof high temperature resistant, and safe and reliable has apparent economic value and social value.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1-central tube, 2-support bar, 3-through hole, 4-radiating protrusion, 5-heat conducting filler, 6-lead, 7-shielding layer, 8-inner insulating layer, 9-outer insulating layer, 10-radiating layer, 11-fireproof heat-insulating layer, 12-protective sleeve, 13-spiral liquid storage tube, 14-radiating ring, 15-radiating rod, 16-spiral guide plate, 17-strip-shaped opening, 18-radiating hole, 19-filter screen, 20-hemispherical protrusion and 21-auxiliary radiating groove.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited in any way, and any changes or improvements based on the present invention are all within the protection scope of the present invention.
As shown in figure 1, the utility model comprises a central tube 1 and a plurality of support bars 2, the circumference of the support bars 2 is evenly distributed on the outer wall of the central tube 1, a plurality of through holes 3 are processed on the support bars 2, a plurality of radiating bulges 4 are arranged on the outer wall of the central tube 1 and the side surfaces of the support bars 2, the space between two adjacent support bars 2 is an accommodating cavity, a heat conducting filler 5 is filled in each accommodating cavity, a lead 6 is arranged in the heat conducting filler 5, a shielding layer 7 and an inner insulating layer 8 are sequentially arranged outside the lead 6, an outer insulating layer 9, a radiating layer 10, a fireproof heat-insulating layer 11 and a protective sleeve 12 are sequentially arranged outside the accommodating cavity, a spiral liquid storage tube 13 is arranged in the outer insulating layer 9, a plurality of radiating assemblies are arranged in the radiating layer 10 at intervals along the length direction of a cable, each radiating assembly comprises a radiating ring 14 and, the inner wall of the heat dissipation ring 14 is tightly hooped on the outer insulation layer 9, the outer end of the heat dissipation rod 15 abuts against the inner wall of the fireproof heat insulation layer 11, in the actual use process, if necessary, an air pump and a liquid pump can be arranged at one end of the cable, the air pump continuously charges cold air into the heat dissipation layer 10, the liquid pump continuously charges cooling liquid into the central tube 1 and the spiral liquid storage tube 13, and the other end of the cable is provided with an air outlet and a cooling liquid outlet, so that a better heat dissipation effect can be achieved.
The utility model discloses set up the center tube 1 in the central point of cable, can empty in the center tube 1 and also can pour into the coolant liquid, be used for absorbing the heat that wire 6 distributed, reduce the temperature around wire 6, simultaneously, the support bar 2 that sets up around the center tube 1 also has the radiating function, in addition to the effect of heat dissipation arch 4 and through-hole 3, can guarantee the heat balance in the outer insulating layer 9, prevent the condition that local high temperature from appearing; secondly, a spiral liquid storage pipe 13 is arranged in the outer insulating layer 9, and cooling liquid is filled in the spiral liquid storage pipe 13, so that heat emitted by the lead 6 or transmitted from the outside due to sun exposure can be further absorbed; in addition, a heat dissipation layer 10 is arranged between the outer insulating layer 9 and the fireproof heat insulation layer 11, so that heat entering the layer can be quickly and uniformly dissipated. To sum up, the utility model discloses in from inside to outside set gradually center tube 1 heat dissipation, support bar 2 heat dissipation, spiral stock solution pipe 13 heat dissipation and heat dissipation layer 10 multiple heat radiation structure such as heat dissipation, can fully even and give off the heat that wire 6 produced or produced because of the sun insolate, guarantee the inside thermal equilibrium of whole cable, prevent that the cable from appearing because of the too high condition that is burnt out or is fired of local temperature, the security performance has improved the high temperature resistance ability of cable when obtaining the improvement, has prolonged the life of cable.
Be provided with spiral deflector 16 on the inner wall of center tube 1, spiral deflector 16 can lead the coolant who gets into center tube 1 for coolant is the spiral flow in center tube 1, can increase the residence time of coolant in center tube 1, improves center tube 1 to the absorption effect of heat on every side.
A strip-shaped opening 17 is processed on the heat dissipation ring 14 along the length direction of the cable, and in the use process, due to the fact that substances expand with heat and contract with cold, the outer insulation layer 9 is heated and possibly expands, at the moment, the heat dissipation ring 14 expands under stress, and the strip-shaped opening 17 is enlarged, so that tension on the outer insulation layer 9 can be released as much as possible, and the situation that the outer insulation layer is cracked under the constraint of the heat dissipation ring 14 is avoided.
Processing has a plurality of louvres 18 with heat dissipation layer 10 intercommunication on fireproof heat insulating layer 11 and protective sheath 12, according to the characteristics of gaseous expend with heat and contract with cold, when the temperature in heat dissipation layer 10 is higher, the air volume inflation in heat dissipation layer 10, discharge in louvre 18 will be followed to unnecessary steam at this moment, thereby get into the lower air of new temperature, under the continuous circulation like this, avoid the inside condition that the high temperature appears of cable, when the in-service use, in order to prevent the rainwater, snow water gets into heat dissipation layer 10 from louvre 18, can install one side orientation below that has louvre 18 on the cable.
The filter screen 19 is arranged in the heat dissipation hole 18, and the filter screen 19 is used for preventing dust and other dirt from entering the heat dissipation layer 10 through the heat dissipation hole 18, so that the heat dissipation layer 10 is guaranteed to have a good heat dissipation effect all the time.
The heat dissipation rod 15 is provided with a plurality of hemispherical protrusions 20, and the hemispherical protrusions 20 can increase the heat dissipation area and improve the heat dissipation efficiency.
Have a plurality of auxiliary radiating grooves 21 along the circumference equipartition on the outer wall of fire prevention insulating layer 11, auxiliary radiating groove 21 is rectangular shape groove, and the length direction of its length direction parallel and cable can effectively improve the utility model discloses a radiating effect.
Claims (7)
1. The utility model provides a sun-proof high temperature resistant type plastic insulated cable which characterized in that: comprises a central tube (1) and a plurality of supporting bars (2), a plurality of supporting bars (2) are uniformly distributed on the outer wall of the central tube (1), a plurality of through holes (3) are processed on the supporting bars (2), a plurality of radiating bulges (4) are arranged on the outer wall of the central tube (1) and the side faces of the supporting bars (2), the space between two adjacent supporting bars (2) is an accommodating cavity, heat-conducting filler (5) is filled in each accommodating cavity, a lead (6) is arranged in the heat-conducting filler (5), a shielding layer (7) and an inner insulating layer (8) are sequentially arranged outside the lead (6), an outer insulating layer (9), a radiating layer (10), a fireproof heat-insulating layer (11) and a protective sleeve (12) are sequentially arranged outside the accommodating cavity, a spiral liquid storage tube (13) is arranged in the outer insulating layer (9), and a plurality of radiating assemblies are arranged in the radiating layer (10) at intervals along, the heat dissipation assembly comprises a heat dissipation ring (14) and a plurality of heat dissipation rods (15) which are uniformly distributed on the heat dissipation ring (14) in the circumferential direction, the inner wall of the heat dissipation ring (14) is tightly hooped on the outer insulating layer (9), and the outer ends of the heat dissipation rods (15) are abutted to the inner wall of the fireproof heat insulation layer (11).
2. The sun-proof high-temperature-resistant plastic insulated cable according to claim 1, characterized in that the inner wall of the central tube (1) is provided with a spiral guide plate (16).
3. The sun-proof high-temperature-resistant plastic insulated cable according to claim 1, wherein the heat dissipation ring (14) is provided with a strip-shaped opening (17) along the length direction of the cable.
4. The sun-proof high-temperature-resistant plastic insulated cable according to claim 1, wherein the fireproof heat-insulating layer (11) and the protective sleeve (12) are provided with a plurality of heat dissipation holes (18) communicated with the heat dissipation layer (10).
5. The sun-proof high-temperature-resistant plastic insulated cable according to claim 4, characterized in that a filter screen (19) is arranged in the heat dissipation hole (18).
6. The sun-proof high-temperature-resistant plastic insulated cable according to claim 1, wherein the heat dissipation rod (15) is provided with a plurality of hemispherical protrusions (20).
7. The sun-proof high-temperature-resistant plastic insulated cable according to claim 1, characterized in that a plurality of auxiliary heat dissipation grooves (21) are uniformly distributed on the outer wall of the fireproof heat-insulating layer (11) along the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020699228.5U CN212010511U (en) | 2020-04-30 | 2020-04-30 | Sun-proof high temperature resistant type plastic insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020699228.5U CN212010511U (en) | 2020-04-30 | 2020-04-30 | Sun-proof high temperature resistant type plastic insulated cable |
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| Publication Number | Publication Date |
|---|---|
| CN212010511U true CN212010511U (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020699228.5U Active CN212010511U (en) | 2020-04-30 | 2020-04-30 | Sun-proof high temperature resistant type plastic insulated cable |
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| CN (1) | CN212010511U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992414A (en) * | 2021-03-16 | 2021-06-18 | 国家电网有限公司 | Coating cable for preventing fire from longitudinally spreading and expanding |
| CN113192680A (en) * | 2021-05-14 | 2021-07-30 | 安徽金环电气设备有限责任公司 | High-flame-retardant high-temperature-resistant heat dissipation cable |
| CN113572095A (en) * | 2021-08-17 | 2021-10-29 | 刘廷廷 | Bridge for computer network engineering construction |
| CN115085108A (en) * | 2022-07-05 | 2022-09-20 | 深圳市英泰格瑞科技有限公司 | Composite high-temperature-resistant cable protection structure and communication cable |
| CN115762894A (en) * | 2023-01-06 | 2023-03-07 | 京缆电缆有限公司 | Safe type 110kV high tension cable convenient to connect |
| CN116230304A (en) * | 2023-04-25 | 2023-06-06 | 通利达线缆集团有限公司 | High-temperature-resistant aluminum alloy high-voltage cable |
-
2020
- 2020-04-30 CN CN202020699228.5U patent/CN212010511U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992414A (en) * | 2021-03-16 | 2021-06-18 | 国家电网有限公司 | Coating cable for preventing fire from longitudinally spreading and expanding |
| CN112992414B (en) * | 2021-03-16 | 2022-09-23 | 国家电网有限公司 | Coating cable for preventing fire from longitudinally spreading and expanding |
| CN113192680A (en) * | 2021-05-14 | 2021-07-30 | 安徽金环电气设备有限责任公司 | High-flame-retardant high-temperature-resistant heat dissipation cable |
| CN113572095A (en) * | 2021-08-17 | 2021-10-29 | 刘廷廷 | Bridge for computer network engineering construction |
| CN115085108A (en) * | 2022-07-05 | 2022-09-20 | 深圳市英泰格瑞科技有限公司 | Composite high-temperature-resistant cable protection structure and communication cable |
| CN115085108B (en) * | 2022-07-05 | 2024-05-17 | 深圳市英泰格瑞科技有限公司 | Composite high-temperature-resistant cable protection structure and communication cable |
| CN115762894A (en) * | 2023-01-06 | 2023-03-07 | 京缆电缆有限公司 | Safe type 110kV high tension cable convenient to connect |
| CN115762894B (en) * | 2023-01-06 | 2023-03-31 | 京缆电缆有限公司 | Safe type 110kV high tension cable convenient to connect |
| CN116230304A (en) * | 2023-04-25 | 2023-06-06 | 通利达线缆集团有限公司 | High-temperature-resistant aluminum alloy high-voltage cable |
| CN116230304B (en) * | 2023-04-25 | 2023-06-30 | 通利达线缆集团有限公司 | High-temperature-resistant aluminum alloy high-voltage cable |
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