CN115641993A - Anti-interference flame-retardant power cable - Google Patents
Anti-interference flame-retardant power cable Download PDFInfo
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- CN115641993A CN115641993A CN202211368499.2A CN202211368499A CN115641993A CN 115641993 A CN115641993 A CN 115641993A CN 202211368499 A CN202211368499 A CN 202211368499A CN 115641993 A CN115641993 A CN 115641993A
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Abstract
The invention discloses an anti-interference flame-retardant power cable, which relates to the technical field of power cables and comprises an outer sheath, a protection assembly, an anti-interference assembly and a guide core, wherein the guide core is arranged inside the outer sheath, the protection assembly is arranged inside the outer sheath, the anti-interference assembly is arranged between the guide core and the protection assembly, and the protection assembly comprises an armor layer, a wrapping tape layer, a flame-retardant layer and a first shielding layer. The anti-interference flame-retardant power cable provided by the invention can improve the anti-interference performance of the power cable through the arrangement of the anti-interference component, wherein the arrangement of the graphene nano layer and the aluminum foil Mylar tape layer can achieve double anti-interference performance, and mica powder is filled between the graphene nano layer and the aluminum foil Mylar tape layer, so that the flame retardance of the power cable can be further improved, the service life of the power cable is prolonged, and the anti-interference component can improve the anti-interference performance of the power cable and further improve the flame retardance of the power cable.
Description
Technical Field
The invention relates to the technical field of power cables, in particular to an anti-interference flame-retardant power cable.
Background
The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply in industrial and mining enterprises and power transmission lines under river-crossing seawater. In power lines, the cable is increasing in specific weight. Power cables are cable products used in the trunk lines of power systems to transmit and distribute high power electrical energy, including various voltage classes, 1-500KV and above, and various insulated power cables.
For example, chinese patent publication No. CN109616254A discloses the following technical solution: a power cable comprises a cable core, a first elastic protection pipe and a second elastic protection pipe; the first elastic protective pipe is arranged outside the cable core, a plurality of buffer grooves arranged along the axial direction of the cable are circumferentially arranged outside the first elastic protective pipe, and a buffer cavity arranged along the axial direction of the cable is arranged between any two adjacent buffer grooves in the first elastic protective pipe; the second elasticity pillar sets up outside first elasticity pillar, and the inboard axial of second elasticity pillar has arranged a plurality of buffering archs of arranging along the cable axial, and a plurality of buffering archs set up respectively in a plurality of buffering recesses. When the cable is extruded, the plurality of buffering bulges are respectively extruded into the plurality of buffering grooves to buffer extrusion force in an elastic deformation manner, and the first elastic protective pipe is extruded by the second elastic protective pipe to buffer extrusion force through elastic deformation of the plurality of buffering cavities.
At present, the existing power cable is anti-interference through wrapping a shielding layer on a guide core, the shielding structure is single, the shielding effect is poor, and the stability of signal transmission when the power cable is used is influenced. Therefore, an anti-interference flame-retardant power cable is provided, and the problems are solved.
Disclosure of Invention
The invention provides an anti-interference flame-retardant power cable, which aims to solve the problems in the background technology.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides an anti-interference fire-retardant type power cable, includes oversheath, protection component, anti-interference subassembly and leads the core, it sets up the inside at the oversheath to lead the core, the protection component sets up the inside at the oversheath, anti-interference subassembly sets up and is leading between core and the protection component.
The protection assembly comprises an armor layer, a wrapping tape layer, a flame retardant layer and a first shielding layer, wherein the outer surface of the armor layer is fixedly connected with the inner surface of the outer sheath.
The anti-interference assembly comprises a graphene nano layer, a groove, mica powder and an aluminum foil mylar tape layer, the groove is formed in the inner surface of the graphene nano layer, the outer surface of the aluminum foil mylar tape layer is fixedly connected with the inner surface of the graphene nano layer, the mica powder is filled in the groove, and the outer surface of the graphene nano layer is fixedly connected with the inner surface of the first shielding layer.
The technical scheme of the invention is further improved as follows: the outer surface of the wrapping tape layer is fixedly connected with the inner surface of the armor layer, the outer surface of the flame-retardant layer is fixedly connected with the inner surface of the wrapping tape layer, and the outer surface of the first shielding layer is fixedly connected with the inner surface of the wrapping tape layer.
By adopting the technical scheme, the flame retardance of the power cable can be improved through the arrangement of the flame-retardant layer in the scheme, and meanwhile, the arrangement of the first shielding layer improves the anti-interference performance of the power cable.
The technical scheme of the invention is further improved as follows: the number of the grooves is ten, the ten grooves are respectively arranged on the inner surface of the graphene nano layer at equal intervals by taking the center of the graphene nano layer as a circle center, and mica powder is filled in each groove.
By adopting the technical scheme, the anti-interference performance of the power cable can be further improved through the arrangement of the graphene nano layer and the aluminum foil Mylar tape layer, and meanwhile, the flame retardance of the power cable can be further improved through the arrangement of the mica powder.
The technical scheme of the invention is further improved as follows: the outer surface of the guide core is provided with a protective layer, the outer surface of the protective layer is fixedly connected with a second shielding layer, the outer surface of the second shielding layer is fixedly connected with an insulating layer, the inner surface of the protective layer is fixedly connected with a limiting strip, and the flame-retardant layer is made of flame-retardant polyvinyl chloride.
Adopt above-mentioned technical scheme, can further improve power cable's anti-interference ability through the setting of second shielding layer in this scheme, the setting of protective layer can play the constraint guard action to leading the core.
The technical scheme of the invention is further improved as follows: the number of the limiting strips is six, the limiting strips respectively use the center of the protective layer as a circle center and are fixedly connected to the inner surface of the protective layer at equal intervals, and the filling layer is filled in the outer sheath.
Adopt above-mentioned technical scheme, can play spacing effect to leading the core through setting up of spacing in this scheme, make lead the core in the inside stability more of protective layer.
The technical scheme of the invention is further improved as follows: the inner lining assembly is arranged inside the outer sheath and comprises an inner lining and a separation frame, the separation frame is arranged inside the inner lining, and the outer surface of the inner lining is fixedly connected with the inner surface of the aluminum foil Mylar belt layer.
Adopt above-mentioned technical scheme, can play divided effect to leading the core through the setting of separating the frame in this scheme, avoid leading the core contact and influence power cable's use together.
The technical scheme of the invention is further improved as follows: the inner surface of the lining is provided with a convex strip, a limiting groove is formed in the convex strip, a butt joint convex strip is arranged on the partition frame, and the butt joint convex strip is inserted into the limiting groove.
Adopt above-mentioned technical scheme, can play spacing effect to separating the frame through setting up of sand grip and spacing groove in this scheme, conveniently separate the inside that the frame set up at the inside lining.
The technical scheme of the invention is further improved as follows: the middle part of the separation frame is provided with a center hole, and a reinforcing rib is arranged inside the center hole.
By adopting the technical scheme, the toughness of the power cable can be further improved by arranging the central hole and the reinforcing ribs in the scheme, and the phenomenon that the power cable is cracked when being pulled by external force is avoided.
The technical scheme of the invention is further improved as follows: the quantity of sand grip is four, and its four the sand grip uses the center of inside lining as the centre of a circle respectively, and equidistant setting is on the internal surface of the inside lining of sand grip.
Adopt above-mentioned technical scheme, can conveniently separate the inside at the inside of frame fixing at the inside lining through setting up of sand grip in this scheme.
The technical scheme of the invention is further improved as follows: the partition frame is provided with eight cavities, the eight cavities are all arranged on the partition frame, and the partition frame is made of high-elasticity rubber materials.
By adopting the technical scheme, the pressure resistance of the separation frame can be improved through the arrangement of the cavity in the scheme, and the phenomenon that the separation frame cracks under pressure is avoided.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
1. the invention provides an anti-interference flame-retardant power cable, which can play a role in protecting a guide core through the arrangement of a protection assembly, wherein the flame retardance of the power cable can be improved through the arrangement of a flame-retardant layer, and the electromagnetic interference of the outside can be reduced through the arrangement of a first shielding layer, so that the interference of the outside on the power cable is reduced, and the anti-interference performance of the power cable is improved.
2. The anti-interference flame-retardant power cable provided by the invention can improve the anti-interference performance of the power cable through the arrangement of the anti-interference component, wherein the arrangement of the graphene nano layer and the aluminum foil Mylar tape layer can achieve double anti-interference performance, and mica powder is filled between the graphene nano layer and the aluminum foil Mylar tape layer, so that the flame retardance of the power cable can be further improved, the service life of the power cable is prolonged, and the anti-interference component can improve the anti-interference performance of the power cable and further improve the flame retardance of the power cable.
3. The invention provides an anti-interference flame-retardant power cable, which can play a role in enhancing the internal stability of the power cable by arranging an inner layer assembly in the cable, wherein a guide core can be separated in the cable by arranging a separation frame, the mutual interference phenomenon is avoided, meanwhile, the toughness of the power cable can be improved by arranging a reinforcing rib, the tensile resistance of the power cable is improved, the service life of the power cable is prolonged, and meanwhile, the compression resistance of the separation frame when being pressed can be improved by arranging a cavity in the separation frame.
4. The invention provides an anti-interference flame-retardant power cable, which has the advantages that the limiting strip is arranged on the inner surface of the protective layer, so that the limiting effect on a guide core can be realized, the guide core is more stable in the protective layer, and the stability of the power cable in use is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a cable according to the present invention;
FIG. 3 is a schematic view of a protective assembly according to the present invention;
FIG. 4 is a schematic diagram of an anti-tamper assembly according to the present invention;
FIG. 5 is a schematic view of the liner structure of the present invention;
FIG. 6 is a schematic view of the liner assembly of the present invention;
fig. 7 is a schematic view of a core-guiding structure according to the present invention.
In the figure: 1. an outer sheath; 2. a protection component; 201. an armor layer; 202. wrapping a belt layer; 203. a flame retardant layer; 204. a first shielding layer; 3. an anti-interference component; 301. a graphene nanolayer; 302. a groove; 303. mica powder; 304. an aluminum foil mylar tape layer; 4. a liner assembly; 401. a liner; 402. a convex strip; 403. a limiting groove; 404. butting the convex strips; 405. a central bore; 406. reinforcing ribs; 407. a cavity; 408. a separation frame; 5. a guide core; 6. a protective layer; 7. a second shielding layer; 8. an insulating layer; 9. a limiting strip; 10. and (5) filling the layer.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in fig. 1 to 7, the invention provides an anti-interference flame-retardant power cable, which comprises an outer sheath 1, a protection component 2, an anti-interference component 3 and a guide core 5, wherein the guide core 5 is arranged inside the outer sheath 1, the protection component 2 is arranged inside the outer sheath 1, and the anti-interference component 3 is arranged between the guide core 5 and the protection component 2.
The protection component 2 comprises an armor layer 201, a wrapping tape layer 202, a flame-retardant layer 203 and a first shielding layer 204, the outer surface of the armor layer 201 is fixedly connected with the inner surface of the outer sheath 1, the protection effect can be achieved on the guide core 5 through the arrangement of the protection component 2, the flame retardance of the power cable can be improved through the arrangement of the flame-retardant layer 203, the electromagnetic interference to the outside can be reduced through the arrangement of the first shielding layer 204, the interference to the power cable from the outside is reduced, and the anti-interference performance of the power cable is improved.
The anti-interference component 3 comprises a graphene nano layer 301, a groove 302, mica powder 303 and an aluminum foil mylar tape layer 304, the groove 302 is formed in the inner surface of the graphene nano layer 301, the outer surface of the aluminum foil mylar tape layer 304 is fixedly connected with the inner surface of the graphene nano layer 301, the mica powder 303 is filled in the groove 302, the outer surface of the graphene nano layer 301 is fixedly connected with the inner surface of the first shielding layer 204, the anti-interference performance of the power cable can be improved through the anti-interference component 3, the graphene nano layer 301 and the aluminum foil mylar tape layer 304 can achieve double anti-interference performance, the mica powder 303 is filled between the graphene nano layer 301 and the aluminum foil mylar tape layer 304, the fire resistance of the power cable can be further improved, the service life of the power cable is prolonged, and the anti-interference performance of the anti-interference component 3 is improved while the anti-interference performance of the power cable is further improved.
The outer surface around belting layer 202 and the internal surface fixed connection of armor 201, the surface of fire-retardant layer 203 and the internal surface fixed connection around belting layer 202, the surface of first shielding layer 204 and the internal surface fixed connection around belting layer 202, the fire resistance that can improve power cable through the setting of fire-retardant layer 203, its first shielding layer 204's setting improves power cable's anti-interference ability simultaneously.
The quantity of recess 302 is ten, and its ten recesses 302 use the center of graphite alkene nano-layer 301 respectively as the centre of a circle, and equidistant the offering is on graphite alkene nano-layer 301's internal surface, and the inside of every recess 302 all is filled with mica powder 303, can further improve power cable's anti-interference ability through graphite alkene nano-layer 301 and the setting of aluminium foil wheat pulling tape layer 304, and the fire resistance of power cable can further be improved in its setting of mica powder 303 simultaneously.
Lead the surface of core 5 and be provided with protective layer 6, the outer fixed surface of protective layer 6 is connected with second shielding layer 7, the outer fixed surface of second shielding layer 7 is connected with insulating layer 8, fixedly connected with spacing 9 on the internal surface of protective layer 6, the material on fire-retardant layer 203 is fire-retardant polyvinyl chloride, can further improve power cable's interference killing feature through the setting of second shielding layer 7, protective layer 6's setting can play the constraint guard action to leading core 5.
Spacing 9's quantity is six, and its six spacing 9 respectively use the center of protective layer 6 as the centre of a circle, equidistant fixed connection on the internal surface of protective layer 6, and the inside packing of oversheath 1 has filling layer 10, can play spacing effect to leading core 5 through setting up of spacing 9, makes and leads core 5 more stable in the inside of protective layer 6.
In this embodiment, the protection component 2 is arranged to protect the conductive core 5, the flame retardant layer 203 is arranged to improve the flame retardant property of the power cable, the first shielding layer 204 is arranged to reduce the electromagnetic interference to the outside, so that the interference to the power cable from the outside is reduced, the interference resistance of the power cable is improved by the arrangement of the anti-interference component 3, the graphene nano-layer 301 and the aluminum foil mylar tape layer 304 are arranged to achieve dual interference resistance, and the mica powder 303 is filled between the graphene nano-layer 301 and the aluminum foil mylar tape layer 304 to further improve the flame retardant property of the power cable and prolong the service life of the power cable, the anti-interference component 3 improves the interference resistance of the power cable and also further improves the flame retardant property of the power cable, the limiting strip 9 is arranged on the inner surface of the protection layer 6 to limit the conductive core 5, so that the conductive core 5 is more stable in the protection layer 6, and the stability of the power cable in use is improved.
Example 2
As shown in fig. 1 to 7, on the basis of embodiment 1, the present invention provides a technical solution: the inside of oversheath 1 is provided with inside lining subassembly 4, and inside lining subassembly 4 includes inside lining 401 and separates frame 408, separates the inside of frame 408 setting at inside lining 401, and the surface of inside lining 401 and the internal surface fixed connection of aluminium foil Mylar belting layer 304 can play the divided effect to leading core 5 through the setting of separating frame 408, avoid leading core 5 contact and influence power cable's use together.
The internal surface of inside lining 401 is provided with sand grip 402, and spacing groove 403 has been seted up to the inside of sand grip 402, is provided with butt joint sand grip 404 on separating the frame 408, and butt joint sand grip 404 is pegged graft in the inside of spacing groove 403, can play spacing effect to separating the frame 408 through setting up of sand grip 402 and spacing groove 403, conveniently separates the inside that frame 408 set up at inside lining 401.
The number of the convex strips 402 is four, the four convex strips 402 are respectively arranged on the inner surface of the liner 401 of the convex strips 402 at equal intervals by taking the center of the liner 401 as the center of a circle, and the partition frames 408 can be conveniently fixed in the liner 401 through the arrangement of the convex strips 402.
The partition 408 is provided with eight cavities 407, the eight cavities 407 are all arranged on the partition 408, the partition 408 is made of a high-elasticity rubber material, the pressure resistance of the partition 408 can be improved through the arrangement of the cavities 407, and the cracking phenomenon of the partition 408 under pressure is avoided.
In this embodiment, the inner layer assembly 4 is disposed inside the cable to enhance the internal stability of the power cable, wherein the spacer 408 is disposed to separate the conductive core 5 inside the cable, so as to avoid the mutual interference phenomenon, and the reinforcing rib 406 is disposed to improve the toughness of the power cable, so as to improve the tensile strength of the power cable, thereby prolonging the service life of the power cable, and meanwhile, the cavity 407 is disposed inside the spacer 408 to improve the compression resistance of the spacer 408 when being compressed.
The working principle of the anti-interference flame-retardant power cable is described in detail below.
As shown in fig. 1-4, the protection component 2 can protect the conductive core 5, the flame retardant layer 203 can improve the flame retardancy of the power cable, the first shielding layer 204 can reduce the electromagnetic interference from the outside, thereby reducing the interference from the outside to the power cable and improving the interference immunity of the power cable, the anti-interference component 3 can improve the interference immunity of the power cable, the graphene nanolayer 301 and the aluminum mylar layer 304 can be arranged to achieve dual interference immunity, and the mica powder 303 is filled between the graphene nanolayer 301 and the aluminum mylar layer 304, thereby further improving the flame retardancy of the power cable and prolonging the service life of the power cable, and the component 3 can improve the interference immunity of the power cable and simultaneously further improving the flame retardancy of the power cable, can play spacing effect to leading core 5 through set up spacing 9 on the internal surface of protective layer 6, make lead core 5 more stable in the inside of protective layer 6, the stability of power cable when using has been improved, can play the effect of strengthening the internal stability of power cable through setting up inlayer subassembly 4 in the inside of cable, wherein the setting of spacer 408 can be separated leading core 5 inside the cable, avoid appearing the mutual interference phenomenon, the setting of its strengthening rib 406 can improve power cable's toughness simultaneously, make power cable's tensile resistance obtain improving, power cable's life has been prolonged, set up cavity 407 in the inside of spacer 408 simultaneously, can improve the crushing resistance of spacer 408 when receiving the oppression.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.
Claims (10)
1. The utility model provides an anti-interference fire-retardant type power cable, includes oversheath (1), protection component (2), anti-interference component (3) and leads core (5), its characterized in that: the guide core (5) is arranged inside the outer sheath (1), the protection component (2) is arranged inside the outer sheath (1), and the anti-interference component (3) is arranged between the guide core (5) and the protection component (2);
the protective assembly (2) comprises an armor layer (201), a wrapping tape layer (202), a flame retardant layer (203) and a first shielding layer (204), wherein the outer surface of the armor layer (201) is fixedly connected with the inner surface of the outer sheath (1);
the anti-interference component (3) comprises a graphene nano layer (301), a groove (302), mica powder (303) and an aluminum foil mylar tape layer (304), wherein the groove (302) is formed in the inner surface of the graphene nano layer (301), the outer surface of the aluminum foil mylar tape layer (304) is fixedly connected with the inner surface of the graphene nano layer (301), the mica powder (303) is filled in the groove (302), and the outer surface of the graphene nano layer (301) is fixedly connected with the inner surface of the first shielding layer (204).
2. The anti-interference flame-retardant power cable according to claim 1, characterized in that: the outer surface of the wrapping tape layer (202) is fixedly connected with the inner surface of the armor layer (201), the outer surface of the flame retardant layer (203) is fixedly connected with the inner surface of the wrapping tape layer (202), and the outer surface of the first shielding layer (204) is fixedly connected with the inner surface of the wrapping tape layer (202).
3. The anti-interference flame-retardant power cable according to claim 1, characterized in that: the number of the grooves (302) is ten, the ten grooves (302) are respectively arranged on the inner surface of the graphene nano layer (301) at equal intervals by taking the center of the graphene nano layer (301) as the circle center, and mica powder (303) is filled in each groove (302).
4. The anti-interference flame-retardant power cable according to claim 1, wherein: the surface of leading core (5) is provided with protective layer (6), the fixed surface of protective layer (6) is connected with second shielding layer (7), the fixed surface of second shielding layer (7) is connected with insulating layer (8), fixedly connected with spacing (9) on the internal surface of protective layer (6), the material of fire-retardant layer (203) is fire-retardant polyvinyl chloride.
5. The anti-interference flame-retardant power cable according to claim 4, characterized in that: the number of the limiting strips (9) is six, the six limiting strips (9) are fixedly connected to the inner surface of the protective layer (6) at equal intervals by taking the center of the protective layer (6) as the circle center, and the filling layer (10) is filled in the outer sheath (1).
6. The anti-interference flame-retardant power cable according to claim 1, characterized in that: the inner part of the outer sheath (1) is provided with a lining assembly (4), the lining assembly (4) comprises a lining (401) and a separation frame (408), the separation frame (408) is arranged in the lining (401), and the outer surface of the lining (401) is fixedly connected with the inner surface of the aluminum foil Mylar belt layer (304).
7. The anti-interference flame-retardant power cable according to claim 6, wherein: the inner surface of the lining (401) is provided with a convex strip (402), a limiting groove (403) is formed in the convex strip (402), a butt joint convex strip (404) is arranged on the partition frame (408), and the butt joint convex strip (404) is inserted into the limiting groove (403).
8. The anti-interference flame-retardant power cable according to claim 6, characterized in that: a central hole (405) is formed in the middle of the partition frame (408), and reinforcing ribs (406) are arranged inside the central hole (405).
9. The anti-interference flame-retardant power cable according to claim 7, wherein: the number of the convex strips (402) is four, and the four convex strips (402) are respectively arranged on the inner surface of the lining (401) of the convex strips (402) at equal intervals by taking the center of the lining (401) as a circle center.
10. The anti-interference flame-retardant power cable according to claim 6, wherein: cavities (407) are formed in the partition frame (408), the number of the cavities (407) is eight, the eight cavities (407) are formed in the partition frame (408), and the partition frame (408) is made of high-elasticity rubber materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211368499.2A CN115641993A (en) | 2022-11-03 | 2022-11-03 | Anti-interference flame-retardant power cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211368499.2A CN115641993A (en) | 2022-11-03 | 2022-11-03 | Anti-interference flame-retardant power cable |
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| CN115641993A true CN115641993A (en) | 2023-01-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117012450A (en) * | 2023-08-29 | 2023-11-07 | 广东广深电缆有限公司 | Anti-interference flame-retardant cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117012450A (en) * | 2023-08-29 | 2023-11-07 | 广东广深电缆有限公司 | Anti-interference flame-retardant cable |
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