CN219958623U - Crosslinked polyethylene insulated power cable - Google Patents
Crosslinked polyethylene insulated power cable Download PDFInfo
- Publication number
- CN219958623U CN219958623U CN202320624907.XU CN202320624907U CN219958623U CN 219958623 U CN219958623 U CN 219958623U CN 202320624907 U CN202320624907 U CN 202320624907U CN 219958623 U CN219958623 U CN 219958623U
- Authority
- CN
- China
- Prior art keywords
- layer
- crosslinked polyethylene
- power cable
- star
- insulated power
- 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
- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 29
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 29
- 238000000576 coating method Methods 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000741 silica gel Substances 0.000 claims abstract description 11
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 20
- 238000005260 corrosion Methods 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 9
- -1 polytetrafluoroethylene Polymers 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 4
- 210000003205 muscle Anatomy 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 20
- 230000005489 elastic deformation Effects 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 abstract description 7
- 230000003245 working effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 55
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000013305 flexible fiber Substances 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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 utility model relates to the technical field of cables, and provides a crosslinked polyethylene insulated power cable, which comprises: first stay tube and star type support frame, hollow cavity has been seted up to the department in star type support frame center department inside, between hollow cavity and the heat conduction coating, all set up the intercommunication groove between star type groove and the heat conduction coating, after long-time work, the heat that leads core self to produce can be through heat conduction silica gel filling layer conduction to the heat conduction coating, heat on the heat conduction coating can disperse hollow cavity and star type groove through the intercommunication groove, heat to leading on the core is dispersed, effectively realize leading the heat conduction of core, avoid leading the overheated and influence the working property of leading the core of core. Can support first stay tube inner wall through the star type support frame, keep the inside form of cable stable, when suffering the extrusion, the elastic deformation of star type support frame can effectively support the protection to leading the core to reduce the pressure that leads the core to receive, improve the compressive capacity of cable.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a crosslinked polyethylene insulated power cable.
Background
The crosslinked polyethylene insulated cable is a cable suitable for the fields of power distribution networks and the like, and has the advantage incomparable with the PVC insulated cable. It has simple structure, light weight, good heat resistance, strong loading capacity, no melting, chemical corrosion resistance and mechanical strength. With the development of economy and the advancement of technology, the demands of human beings on communication and power on are increasing, and cables are required to be laid in many places. The power cable in the cable is a cable for transmitting and distributing electric energy, and is commonly used for an underground power grid of a city, an industrial and mining power supply transmission line, a power station outgoing line and the like.
Through searching, in a patent document with the publication number of CN215834311U and the name of a crosslinked polyethylene insulated power cable, the cable comprises an inner supporting tube, and a filling layer is arranged inside the inner supporting tube. This insulating power cable of crosslinked polyethylene is provided with flame retardant coating and anticorrosive coating including the stay tube outside, makes this insulating power cable of crosslinked polyethylene possess flame retardant and anticorrosive, and makes the protection effect obtain improving, is provided with the insulating layer on the wire surface, avoids taking place to interfere between the adjacent wire, is provided with the buffer layer on the flame retardant coating surface, and has offered the buffer chamber in the buffer layer is inside to prevent effectively that external impact from causing the harm to this insulating power cable of crosslinked polyethylene inside, effectively improves its holistic life.
However, in the above scheme, there is still a certain disadvantage that a buffer layer is disposed on the surface of the fireproof layer, and the buffer layer is used to provide buffer protection performance for the cable, but fails to provide good compression protection for the inner layer of the cable, so that the compression resistance of the whole cable is slightly insufficient, when the cable is subjected to a relatively large pressure, the inner cable cores are easily caused to be mutually close to each other and extruded due to lack of support on the inner side of the cable, thereby affecting the transmission of the cable to electricity, and the tensile capability of the cable is relatively poor, and is easily damaged when the cable is pulled; in addition, the heat that the cable core during operation produced can not fine transfer, when the cable core heat is too big, can influence the transmission performance of cable core.
In view of this, the present utility model proposes a crosslinked polyethylene insulated power cable.
Disclosure of Invention
The utility model provides a crosslinked polyethylene insulated power cable, which solves the problem that the prior art cannot provide good compression resistance protection for the inner layer of the cable.
The technical scheme of the utility model is as follows: a crosslinked polyethylene insulated power cable comprising: the inside equidistance of first stay tube is provided with a plurality of and leads the core, every it is equipped with the insulating layer to lead the outside of core all to overlap, the inside fixedly connected with of first stay tube carries out the star type support frame that supports first stay tube inner wall, form between star type support frame and the first stay tube and lead the chamber of placing that the core was installed, every place the intracavity portion and all fill and have heat conduction silica gel filling layer, heat conduction silica gel filling layer internally provides and carries out the hole of placing of parcel to the insulating layer. The star-shaped support frame is close to the outer wall of the first support tube and fixedly connected with a heat conducting coating, a hollow cavity is formed in the center of the star-shaped support frame, a star-shaped groove communicated with the hollow cavity is formed in the outer side of the hollow cavity, and communication grooves are formed between the hollow cavity and the heat conducting coating and between the star-shaped groove and the heat conducting coating. The outer side of first stay tube is provided with the second stay tube, the outside of second stay tube is provided with the waterproof layer, form the cushion chamber between second stay tube and the waterproof layer the cushion intracavity portion evenly is provided with the triangular support frame, every the inside equal fixedly connected with of triangular support frame indulges the muscle.
Preferably, the outer wall fixedly connected with armor of first stay tube, fixed cover is equipped with the flame retardant coating between armor and the second stay tube.
Preferably, the outer wall fixing sleeve of the waterproof layer is provided with an anti-corrosion layer, and the outer wall fixing sleeve of the anti-corrosion layer is provided with a wear-resistant layer.
Preferably, the insulating layer is made of crosslinked polyethylene.
Preferably, the star-shaped supporting frame is made of rubber materials.
Preferably, the wear-resistant layer is made by coating a high-temperature-resistant nano aluminum oxide material on the surface of the anti-corrosion layer.
Preferably, the anti-corrosion layer is made of polytetrafluoroethylene material.
Preferably, the waterproof layer is made of polyethylene material.
Preferably, the longitudinal ribs are made of flexible fiber materials.
Preferably, the first support tube and the second support tube are made of high-strength polyethylene materials.
The working principle and the beneficial effects of the utility model are as follows:
1. according to the utility model, the hollow cavity is formed in the center of the star-shaped support frame, the star-shaped groove communicated with the hollow cavity is formed in the outer side of the hollow cavity, the communication grooves are formed between the hollow cavity and the heat conducting coating layer and between the star-shaped groove and the heat conducting coating layer, after long-time work, heat generated by the heat conducting core can be conducted to the heat conducting coating layer through the heat conducting silica gel filling layer, heat on the heat conducting coating layer can be dispersed into the hollow cavity and the star-shaped groove through the communication grooves, heat on the heat conducting core is dispersed, heat conduction of the heat conducting core is effectively realized, and the influence on the working performance of the heat conducting core due to overheat of the heat conducting core is avoided;
2. according to the utility model, the inner wall of the first supporting tube can be supported by the star-shaped supporting frame, so that the internal form of the cable is kept stable, and the elastic deformation of the star-shaped supporting frame can effectively support and protect the guide core when the cable is extruded, so that the pressure born by the guide core is reduced, the compression resistance of the cable is improved, and the service life is greatly prolonged. And under the effect of triangular supports frame, can support the cushion chamber, can effectively improve cable overall structure's stability, when the cable suffered the extrusion, can effectively cushion and offset the extrusion force through triangular supports frame's elastic deformation, further carry out compressive protection to the cable. Under the action of the longitudinal ribs, the tensile property of the cable can be greatly improved, the protection to the cable is effectively improved, and the service life of the cable is greatly prolonged.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic perspective view of a cross-linked polyethylene insulated power cable according to the present utility model;
FIG. 2 is a schematic cross-sectional view of a cross-linked polyethylene insulated power cable according to the present utility model;
FIG. 3 is an enlarged schematic view of FIG. 2A;
in the figure: 1. a communication groove; 2. a hollow cavity; 3. a star-shaped supporting frame; 4. a thermally conductive coating; 5. a thermally conductive silica gel filling layer; 6. an insulating layer; 7. placing the hole; 8. a star-shaped groove; 9. a guide core; 10. a wear-resistant layer; 11. an anti-corrosion layer; 12. triangular support frames; 13. a second support tube; 14. a fire-blocking layer; 15. an armor layer; 16. a first support tube; 17. longitudinal ribs; 18. a buffer chamber; 19. and a waterproof layer.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, a crosslinked polyethylene insulated power cable, comprising: the inside equidistance of first stay tube 16 is provided with a plurality of and leads core 9, and the outside of every leads core 9 all overlaps and is equipped with insulating layer 6, and the inside fixedly connected with of first stay tube 16 carries out star type support frame 3 that supports first stay tube 16 inner wall, and star type support frame 3 adopts the rubber material to make, forms between star type support frame 3 and the first stay tube 16 and carries out the cavity of placing of installing to leading core 9, and every is placed the intracavity portion and is all filled with heat conduction silica gel filling layer 5, and the inside hole 7 of placing that wraps up to insulating layer 6 of having offered of heat conduction silica gel filling layer 5. The outer wall of the star-shaped support frame 3, which is close to the first support tube 16, is fixedly connected with a heat conducting coating 4, a hollow cavity 2 is formed in the center of the star-shaped support frame 3, a star-shaped groove 8 communicated with the hollow cavity 2 is formed in the outer side of the hollow cavity 2, and a communication groove 1 is formed between the hollow cavity 2 and the heat conducting coating 4 and between the star-shaped groove 8 and the heat conducting coating 4. After long-time work, heat generated by the guide core 9 can be conducted to the heat conducting coating 4 through the heat conducting silica gel filling layer 5, and heat on the heat conducting coating 4 can be dispersed into the hollow cavity 2 and the star-shaped groove 8 through the communication groove 1, so that heat on the guide core 9 is dissipated. The inner wall of the first supporting tube 16 is supported by the star-shaped supporting frame 3, so that the internal form of the cable is kept stable, and when the cable is extruded, the guide core 9 can be effectively supported and protected by the elastic deformation of the star-shaped supporting frame 3, so that the pressure born by the guide core 9 is reduced, the compression resistance of the cable is improved, and the service life is greatly prolonged.
Referring to fig. 2 and 3, a second support tube 13 is disposed on the outer side of the first support tube 16, a waterproof layer 19 is disposed on the outer side of the second support tube 13, and the waterproof layer 19 is disposed, so that external water vapor cannot enter the cable, and normal operation of the cable is affected, thereby improving waterproof performance of the cable and ensuring normal operation of the cable. Form the cushion chamber 18 between second stay tube 13 and the waterproof layer 19, evenly be provided with the triangular support frame 12 of making by the rubber material in cushion chamber 18 inside, the equal fixedly connected with of every triangular support frame 12 is indulged muscle 17, indulges muscle 17 and adopts flexible fiber material to make, under the effect of triangular support frame 12, can support cushion chamber 18, can effectively improve cable overall structure's stability, when the cable suffered the extrusion, can effectively cushion and offset the extrusion force through the elastic deformation of triangular support frame 12, carries out compressive protection to the cable. Under the action of the longitudinal ribs 17, the tensile property of the cable can be greatly improved.
An armor layer 15 is fixedly connected to the outer wall of the first support tube 16, and a fireproof layer 14 is fixedly sleeved between the armor layer 15 and the second support tube 13. The outer wall of the waterproof layer 19 is fixedly sleeved with the anti-corrosion layer 11, wherein the waterproof layer 19 is made of polyethylene materials, the anti-corrosion layer 11 is made of polytetrafluoroethylene materials, and the outer wall of the anti-corrosion layer 11 is fixedly sleeved with the wear-resistant layer 10. The wear-resistant layer 10 is made of high-temperature resistant nano alumina material coated on the surface of the anti-corrosion layer 11. The insulating layer 6 is made of crosslinked polyethylene, the first support tube 16 and the second support tube 13 are made of high-strength polyethylene, and the overall structural stability of the cable is improved. The arrangement of the anti-corrosion layer 11 enables the cable to resist corrosion of acidic and alkaline liquids, achieves the purposes of improving the anti-corrosion capability of the cable and prolonging the service life of the cable, and the insulating layer 6 made of the crosslinked polyethylene material enables the internal current not to threaten the life safety of a user when the cable is used, and achieves the purpose of improving the safety performance of the cable.
Working principle and using flow: after the device works for a long time, heat generated by the guide core 9 can be conducted to the heat conducting coating 4 through the heat conducting silica gel filling layer 5, and the heat on the heat conducting coating 4 can be dispersed into the hollow cavity 2 and the star-shaped groove 8 through the communication groove 1, so that the heat on the guide core 9 is dissipated, the heat conduction of the guide core 9 is effectively realized, and the influence on the working performance of the guide core 9 due to overheat of the guide core 9 is avoided. The inner wall of the first supporting tube 16 can be supported through the star-shaped supporting frame 3, the internal form of the cable is kept stable, and when the cable is extruded, the elastic deformation of the star-shaped supporting frame 3 can effectively support and protect the guide core 9, so that the pressure born by the guide core 9 is reduced, the compression resistance of the cable is improved, and the service life is greatly prolonged. And under the effect of tripod 12, can support buffer chamber 18, can effectively improve cable overall structure's stability, when the cable suffered the extrusion, can effectively cushion and offset the extrusion force through tripod 12's elastic deformation, carry out compressive protection to the cable. Under the action of the longitudinal ribs 17, the tensile property of the cable can be greatly improved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. A crosslinked polyethylene insulated power cable comprising: the novel heat conduction device comprises a first support tube (16), wherein a plurality of guide cores (9) are equidistantly arranged in the first support tube (16), an insulating layer (6) is sleeved on the outer side of each guide core (9), and the novel heat conduction device is characterized in that a star-shaped support frame (3) for supporting the inner wall of the first support tube (16) is fixedly connected to the inner side of the first support tube (16), a placement cavity for installing the guide cores (9) is formed between the star-shaped support frame (3) and the first support tube (16), a heat conduction silica gel filling layer (5) is filled in each placement cavity, and a placement hole (7) for wrapping the insulating layer (6) is formed in each heat conduction silica gel filling layer (5);
the star-shaped support frames (3) are fixedly connected with heat-conducting coatings (4) close to the outer walls of the first support tubes (16), hollow cavities (2) are formed in the centers of the star-shaped support frames (3), star-shaped grooves (8) communicated with the hollow cavities (2) are formed in the outer sides of the hollow cavities (2), and communication grooves (1) are formed between the hollow cavities (2) and the heat-conducting coatings (4) and between the star-shaped grooves (8) and the heat-conducting coatings (4);
the outer side of first stay tube (16) is provided with second stay tube (13), the outside of second stay tube (13) is provided with waterproof layer (19), form between second stay tube (13) and waterproof layer (19) and cushion chamber (18) inside evenly being provided with triangular support frame (12), every inside all fixedly connected with of triangular support frame (12) indulges muscle (17).
2. A crosslinked polyethylene insulated power cable according to claim 1, characterized in that the outer wall of the first support tube (16) is fixedly connected with an armor layer (15), and a fireproof layer (14) is fixedly sleeved between the armor layer (15) and the second support tube (13).
3. The crosslinked polyethylene insulated power cable according to claim 1, wherein the outer wall fixing sleeve of the waterproof layer (19) is provided with an anti-corrosion layer (11), and the outer wall fixing sleeve of the anti-corrosion layer (11) is provided with a wear-resistant layer (10).
4. A crosslinked polyethylene insulated power cable according to claim 1, wherein the insulating layer (6) is made of crosslinked polyethylene material.
5. A crosslinked polyethylene insulated power cable according to claim 1, wherein the star-shaped support (3) is made of rubber material.
6. A crosslinked polyethylene insulated power cable according to claim 3, characterized in that the wear layer (10) is made of a high temperature resistant nano alumina material coated on the surface of the corrosion protection layer (11).
7. A crosslinked polyethylene insulated power cable according to claim 3, characterized in that the corrosion protection layer (11) is made of polytetrafluoroethylene material.
8. A crosslinked polyethylene insulated power cable according to claim 1, wherein the waterproof layer (19) is made of polyethylene material.
9. A crosslinked polyethylene insulated power cable according to claim 1, wherein the longitudinal ribs (17) are made of flexible fibre material.
10. A crosslinked polyethylene insulated power cable according to claim 1, wherein the first support tube (16) and the second support tube (13) are made of a high strength polyethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320624907.XU CN219958623U (en) | 2023-03-27 | 2023-03-27 | Crosslinked polyethylene insulated power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320624907.XU CN219958623U (en) | 2023-03-27 | 2023-03-27 | Crosslinked polyethylene insulated power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219958623U true CN219958623U (en) | 2023-11-03 |
Family
ID=88554193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320624907.XU Active CN219958623U (en) | 2023-03-27 | 2023-03-27 | Crosslinked polyethylene insulated power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219958623U (en) |
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2023
- 2023-03-27 CN CN202320624907.XU patent/CN219958623U/en active Active
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