CN115295218B - Cross-linked flame-retardant efficient power transmission cable and use method thereof - Google Patents
Cross-linked flame-retardant efficient power transmission cable and use method thereof Download PDFInfo
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- CN115295218B CN115295218B CN202211013054.2A CN202211013054A CN115295218B CN 115295218 B CN115295218 B CN 115295218B CN 202211013054 A CN202211013054 A CN 202211013054A CN 115295218 B CN115295218 B CN 115295218B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/428—Heat conduction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses a cross-linked flame-retardant efficient power transmission cable which comprises a central installation cable, wherein an installation inner ring is uniformly sleeved on the outer side of the central installation cable at equal intervals, elastic supporting blocks are uniformly and fixedly connected to the outer side of the installation inner ring at equal intervals along the circumferential direction, the end part of each elastic supporting block is fixedly connected with a supporting arc block, a cable which is composed of an outer sheath, an outer shielding layer, an inner sheath, an inner shielding layer and an inner conductor is arranged on the arc surface of the end part of each supporting arc block, the outer side of the outer sheath is tightly attached to the arc surface of the end part of each supporting arc block, and the outer sheath is tightly covered on the outer side of the outer shielding layer; the invention has scientific and reasonable structure and safe and convenient use, effectively improves the integral structural strength of the crosslinked cable, and protects the crosslinked cable by the property of non-Newtonian fluid when the crosslinked cable is subjected to instantaneous impact, thereby effectively preventing the crosslinked cable from being damaged under the external impact and effectively improving the splicing and mounting convenience of the crosslinked cable.
Description
Technical Field
The invention relates to the technical field of crosslinked cables, in particular to a crosslinked flame-retardant efficient power transmission cable and a using method thereof.
Background
The crosslinked cable is a short name of crosslinked polyethylene insulated cable, the crosslinked cable is suitable for power frequency alternating current voltage 500KV and below transmission and distribution lines, the majority of high-voltage cables are insulated by crosslinked polyethylene, and the process modes for producing the crosslinked cable in the cable industry are divided into three categories: the first peroxide chemical crosslinking comprises saturated steam crosslinking, inert gas crosslinking, molten salt crosslinking and silicone oil crosslinking, and the second method, namely dry method chemical crosslinking, the second silane chemical crosslinking and the third irradiation crosslinking are adopted domestically;
but at present crosslinked cable is in the use, owing to lack corresponding supplementary protective structure for take place to warp easily when the cable receives external impact, thereby lead to the cable inner structure to take place to warp and damage under the effect of external force, and then reduced the life of cable, simultaneously because the cable internal seal is inseparable, make the inside temperature of cable can't in time distribute out, make the inside overheated phenomenon can appear after long-time work of cable, and then reduced crosslinked electric heat's performance.
Disclosure of Invention
The invention provides a cross-linked flame-retardant efficient power transmission cable and a use method thereof, which can effectively solve the problems that in the use process of the cross-linked cable provided in the background technology, due to the lack of a corresponding auxiliary protection structure, the cable is easy to deform when being impacted by the outside, so that the internal structure of the cable deforms and is damaged under the action of external force, the service life of the cable is further shortened, and meanwhile, due to the tight sealing of the interior of the cable, the temperature in the cable cannot be timely dissipated, so that the internal overheating phenomenon can occur in the cable after long-time work, and the use performance of cross-linked electric heating is further reduced.
In order to achieve the purpose, the invention provides the following technical scheme: a cross-linked flame-retardant efficient power transmission cable comprises a central installation cable, wherein an installation inner ring is uniformly sleeved on the outer side of the central installation cable at equal intervals, elastic supporting blocks are uniformly and fixedly connected to the outer side of the installation inner ring at equal intervals along the circumferential direction, and supporting arc blocks are fixedly connected to the end parts of the elastic supporting blocks;
the cable which consists of an outer sheath, an outer shielding layer, an inner sheath, an inner shielding layer and an inner conductor is arranged on the arc surface of the end part of the supporting arc block, the outer side of the outer sheath is tightly attached to the arc surface of the end part of the supporting arc block, and the outer sheath is tightly covered on the outer side of the outer shielding layer;
the heat-conducting round box is arranged on the outer side of the central mounting cable corresponding to the side face of the outer sheath along the circumferential direction, outer magnetic strips are symmetrically embedded and bonded on the outer side of the heat-conducting round box along the circumferential direction, an inner sealing round box is movably arranged on the middle position of the inner side of the heat-conducting round box, inner magnetic strips are symmetrically embedded and bonded on the outer side of the inner sealing round box along the circumferential direction, an isolation crutch plate is fixedly connected to the middle of the inner sealing round box, arc-shaped heat-absorbing bags are filled on the inner side of the inner sealing round box corresponding to the top and the bottom of the isolation crutch plate, telescopic end bags are fixedly connected to the ends of the arc-shaped heat-absorbing bags, balance weight sliders are bonded on the tops of the telescopic end bags corresponding to the positions of the inner sealing round box, sealing end blocks are embedded in the middle parts of two ends of the inner sealing round box, and guide sliders are fixedly connected to the positions on the inner side of the sealing end blocks corresponding to two sides of the balance weight sliders;
the utility model discloses a heat-conducting silica gel ring, including installation inner ring, oversheath, filling cable and heat conduction circle box, the installation inner ring outside corresponds support arc piece side position department and has a connection dovetail frame along circumferencial direction equidistance fixed mounting, it corresponds oversheath side position department and has arranged the filling cable to connect the dovetail frame tip, the common cladding in the oversheath, filling cable and heat conduction circle box outside has the seal cover, the seal cover outside is wrapped up in there is the cladding and is wrapped up in the cover, the even bonding of cladding and wrapping up in cover outside equidistance has non-Newton fluid strip, the bonding has the compression joint strip bottom cladding in cladding and wrapping up in cover both ends junction, the cladding and wrapping up in the cover outside and corresponding non-Newton fluid strip side position department embedding and installing heat-conducting silica gel ring, the common cladding in heat-conducting silica gel ring outside has heat-conducting silica gel cover.
Preferably, two be central symmetry distribution between the arc heat absorption bag, the inside packing of arc heat absorption bag has the incombustible solution that volatilizees, communicate each other between flexible end bag inside cavity and the arc heat absorption bag inside cavity, closely slide the laminating between the direction slide inboard and the counter weight slider outside.
Preferably, an inner sheath is adhered to the inner side of the outer shielding layer, an inner shielding layer is adhered to the inner side of the inner sheath, and an inner conductor is tightly inserted into the inner shielding layer in a penetrating mode.
Preferably, an inner adhesive tape is bonded to the bottom of the inner side of the connecting dovetail frame, a connecting arc block is fixedly connected to the position, corresponding to the outer side of the inner adhesive tape, inside the connecting dovetail frame, and a non-Newtonian fluid block is bonded to the position, corresponding to the outer side of the connecting arc block, inside the connecting dovetail frame;
the middle part of one side of the elastic supporting block is provided with a circular through hole in a penetrating mode, the middle parts of two sides of the elastic supporting block are provided with arc surfaces, and one surface of the outer side of the inner rubber strip is tightly attached to the inner side of the connecting arc block.
Preferably, the two sides of the heat-conducting silica gel ring are tightly attached to the side faces of the corresponding non-Newtonian fluid strips, and the inner side of the heat-conducting silica gel sleeve is tightly attached to the outer side of the non-Newtonian fluid strips.
Preferably, an external shielding sleeve is tightly wrapped outside the heat-conducting silicone sleeve, a protective cable sleeve is precisely wrapped outside the external shielding sleeve, an isolation sealing sleeve is melted and wrapped outside the protective cable sleeve, and a protective layer is melted and wrapped outside the isolation sealing sleeve;
the non-Newtonian fluid strip is arranged on the outer side of the protective layer, corresponding marks are sprayed at positions corresponding to the side faces of the non-Newtonian fluid strip, and marking lines are sprayed at positions corresponding to the bottom of the compression connecting strip on the outer side of the protective layer.
Preferably, the connecting dovetail frame and the connecting arc block are both made of elastic materials, two sides of the outer part of the connecting dovetail frame are tightly attached to the outer side of the outer sheath in a sliding manner, and the top surface of the connecting dovetail frame is provided with an arc chamfer and an arc concave surface;
and an independent sealing bag is arranged on the outer side of the non-Newtonian fluid block, and the interior of the non-Newtonian fluid block is filled with high-temperature-resistant and non-flammable non-Newtonian fluid.
Preferably, heat conduction circle box passes through fixed connection between link and the central installation cable, closely slide between the interior sealed circle box outside and the heat conduction circle box inner wall and laminate, outside magnetic stripe and inboard magnetic stripe are heat-resisting magnet, and attract each other between a set of outside magnetic stripe and the inboard magnetic stripe of adjacent.
Preferably, the outer side of the non-Newtonian fluid strip is provided with an independent strip-shaped sealing bag, the non-Newtonian fluid strip is filled with high-temperature-resistant and non-flammable non-Newtonian fluid, the non-Newtonian fluid strip is bent into a ring shape to be coated on the outer side of the sealing sleeve, and the positions of the non-Newtonian fluid strip and the non-Newtonian fluid block are corresponding to each other all the time.
Preferably, the use method of the cross-linked flame-retardant high-efficiency power transmission cable comprises the following steps:
s1, preparing an apparatus: selecting a proper tool according to the installation and connection position of the cable, constructing a proper working space at the periphery of the connection position according to the installation requirement, and sequentially arranging the tools to be used on the side surface of the cable connection position;
s2, cable end processing: after the detection device detects that the cable is qualified, the cutting device cuts and peels off the protective cable sleeve, the isolation sealing sleeve and the protective layer on the outer side of the cable, separates and removes all components mounted on the inner ring mounted on the outer side of the central mounting cable, and straightens the inner conductor after the inner conductor is completely exposed;
s3, connection and sealing: connecting the inner conductors of the two cables through corresponding connecting components, and sealing the outer sides of the connecting positions of the cables through the corresponding components after the cables are connected;
s4, detection processing: after the connection between the two cables is finished, detecting the connected cables through a corresponding detection instrument, and performing corresponding modification treatment on the connection part of the cables;
s5, clearing and ending: after the connection of the two cables is completed, the working space built around the cables is dismantled, and the workpieces are collected and sorted, so that the connection of the cables is completed.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:
1. through the mutual matching of the non-Newtonian fluid block, the coating wrapping sleeve, the non-Newtonian fluid strip, the compression connecting strip and related components, the overall structural strength of the crosslinked cable is effectively improved, the crosslinked cable is protected through the properties of the non-Newtonian fluid when being subjected to instantaneous impact, and therefore the crosslinked cable is effectively prevented from being damaged under external impact;
meanwhile, due to the non-flammable non-Newtonian fluid materials in the non-Newtonian fluid blocks and the non-Newtonian fluid strips, the non-Newtonian fluid blocks and the non-Newtonian fluid strips can be dispersed to the gap inside the cross-linked cable after being damaged, so that the phenomenon that the cross-linked cable burns due to overhigh temperature in the using process is effectively prevented, and the flame retardance of the cross-linked cable is effectively improved.
2. Through the mutual matching between the heat conduction round box and each component inside the heat conduction round box, the heat dissipation process in the use process of the cable is optimized, the difference between the internal temperature and the external temperature of the crosslinked cable and the heat dissipation efficiency is utilized, the arc heat absorption bags which are distributed in central symmetry alternately stretch and retract to drive the counterweight sliding block to slide in a reciprocating manner, so that the inner sealing round box can circularly rotate inside the heat conduction round box, the heat inside the crosslinked cable is transported outwards through the arc heat absorption bags in the rotation process of the inner sealing round box, meanwhile, the heat energy can be continuously consumed through the rotation of the inner sealing round box and the stretching of the arc heat absorption bags, and the heat dissipation performance of the crosslinked cable is further improved;
through mutually supporting between the inside magnetic stripe of outside magnetic stripe, can initiatively attract spacingly to the initial condition of sealed circle box in the inside, the effectual sealed circle box that has prevented reaches balanced state and can't continue to rotate at the rotation in-process, and then the effectual normal use who ensures crosslinked cable, can outwards conduct the outside quick heat in the crosslinked cable outside through heat conduction silica gel ring sum heat conduction silica gel cover, the heat that makes the crosslinked cable outside can outwards transmit rapidly, the holistic heat dispersion of crosslinked cable has further been improved.
3. Through the combined action of the installation inner ring, the elastic supporting block, the supporting arc block, the protective cable sleeve and related components thereof, the outer sheath and the components inside the outer sheath can be supported in an auxiliary manner through the elastic supporting block and the supporting arc block, so that proper intervals can be kept among the inner conductors, the interior of the crosslinked cable can be in a circular structure, and when the crosslinked cable is extruded from the outside, the interior of the crosslinked cable can be supported through the elastic supporting block and the supporting arc block, so that the crosslinked cable can maintain the whole circular structure, the outer side of the crosslinked cable can be cut and protected through the protective cable sleeve, the protective cable sleeve effectively prevents the core components inside the crosslinked cable from being directly damaged by external cutting, and the whole protective performance of the crosslinked cable is effectively improved;
the inner conductor is isolated and protected by the outer sheath, the outer shielding layer, the inner sheath and the inner shielding layer, and each component in the crosslinked cable is protected by the isolation sealing sleeve and the protective layer, so that the overall performance of the crosslinked cable is effectively improved, and the normal use of the crosslinked cable is ensured;
in conclusion, through the mutual matching among the components in the crosslinked cable, the elastic supporting block and the supporting arc block are used for rigidly supporting the interior of the cable, so that the crosslinked cable keeps a circular structure in the use process, the cutting resistance of the cable is effectively improved through the protection of the outer side of the protective cable sleeve, and meanwhile, the comprehensive performance of the cable is effectively improved through the enhancement of the impact resistance of the cable and the optimization of the heat dissipation process in the interior of the cable.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a flow chart of the steps of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the structure of the end of the present invention;
FIG. 4 is a schematic diagram of a non-Newtonian fluid strip installation configuration in accordance with the present invention;
FIG. 5 is a schematic view of the structure of the present invention showing the installation of the resilient support block;
FIG. 6 is a schematic structural view of the attachment dovetail mount of the present invention;
FIG. 7 is a schematic view of the construction of the isolation crutch panel mounting of the present invention;
the reference numbers in the figures: 1. a cable is arranged in the center; 2. installing an inner ring; 3. an elastic support block; 4. supporting the arc block; 5. an outer sheath; 6. an outer shield layer; 7. an inner sheath; 8. an inner shield layer; 9. an inner conductor; 10. connecting the dovetail frame; 11. an inner adhesive tape; 12. connecting the arc blocks; 13. a non-Newtonian slug; 14. filling a cable; 15. a heat-conducting round box; 16. an outer magnetic strip; 17. an inner sealed round box; 18. an inner magnetic strip; 19. isolating the crutch plate; 20. an arc-shaped heat absorption bag; 21. a telescopic end bag; 22. a counterweight sliding block; 23. a sealing end block; 24. a guide slide plate; 25. sealing sleeves; 26. wrapping; 27. a non-Newtonian fluid strip; 28. compressing the connecting strip; 29. a heat-conducting silica gel ring; 30. a heat-conducting silica gel sleeve; 31. an outer shielding sleeve; 32. a protective cable sheath; 33. an isolation seal sleeve; 34. and (4) a protective layer.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1, the invention provides a technical solution, a method for using a cross-linked flame-retardant high-efficiency power transmission cable, comprising the following steps:
s1, preparing an apparatus: selecting a proper tool according to the installation and connection position of the cable, constructing a proper working space at the periphery of the connection position according to the installation requirement, and sequentially arranging the tools to be used on the side surface of the cable connection position;
s2, cable end processing: after the cable is detected to be qualified by the detection device, the protective cable sleeve 32, the isolation sealing sleeve 33 and the protective layer 34 on the outer side of the cable are cut and stripped by the cutting device, each component mounted on the inner ring 2 mounted on the outer side of the central mounting cable 1 is separated and removed, and the inner conductor 9 is straightened after being completely exposed;
s3, connection and sealing: connecting the inner conductors 9 of the two cables through corresponding connecting components, and sealing the outer sides of the connecting parts of the cables through the corresponding components after the cables are connected;
s4, detection processing: after the connection between the two cables is finished, detecting the connected cables through corresponding detection instruments, and performing corresponding modification treatment on the connection positions of the cables;
s5, clearing and ending: after the connection of the two cables is completed, the working space built around the cables is dismantled, and the workpieces are collected and sorted, so that the connection of the cables is completed.
As shown in fig. 2-7, an installation inner ring 2 is uniformly sleeved on the outer side of a central installation cable 1 at equal intervals, elastic supporting blocks 3 are uniformly and fixedly connected on the outer side of the installation inner ring 2 at equal intervals along the circumferential direction, and supporting arc blocks 4 are fixedly connected at the end parts of the elastic supporting blocks 3;
the cable which is composed of the outer sheath 5, the outer shielding layer 6, the inner sheath 7 and the inner conductor 9 is arranged on the arc surface of the end part of the supporting arc block 4, wherein the outer sheath 5, the inner sheath 7 and the inner shielding layer 8 can be made of polyethylene materials, the outer shielding layer 6 is formed by weaving a copper mesh, and the inner shielding layer 8 can be made of polyethylene mixed materials or woven by the copper mesh and can be determined according to the site.
The outer side of the outer sheath 5 is tightly attached to the cambered surface of the end part of the supporting arc block 4, the outer sheath 5 tightly covers the outer side of the outer shielding layer 6, an inner sheath 7 is adhered to the inner side of the outer shielding layer 6, an inner shielding layer 8 is adhered to the inner side of the inner sheath 7, and an inner conductor 9 is tightly inserted into the inner shielding layer 8 in a penetrating manner;
connecting dovetail frames 10 are fixedly installed at the positions, corresponding to the side surfaces of the supporting arc blocks 4, on the outer side of the installation inner ring 2 at equal intervals along the circumferential direction, inner rubber strips 11 are bonded at the bottom of the inner side of each connecting dovetail frame 10, connecting arc blocks 12 are fixedly connected at the positions, corresponding to the outer sides of the inner rubber strips 11, inside the connecting dovetail frames 10, the connecting dovetail frames 10 and the connecting arc blocks 12 are both made of elastic materials, the two outer sides of each connecting dovetail frame 10 are tightly attached to the outer sides of the outer sheaths 5 in a sliding mode, arc chamfers and arc concave surfaces are arranged on the top surfaces of the connecting dovetail frames 10, non-Newtonian fluid blocks 13 are bonded at the positions, corresponding to the outer sides of the connecting arc blocks 12, on the inner side of each connecting dovetail frame 10, filling ropes 14 are arranged at the positions, corresponding to the side surfaces of the outer sheaths 5, of the middle parts of one sides of the elastic supporting blocks 3 penetrate through circular through holes, arc surfaces are arranged at the middle parts of two sides of the elastic supporting blocks 3, and the outer sides of the inner arc rubber strips 11 are tightly attached to the inner sides of the inner connecting dovetail blocks 12;
the outer side of the central mounting cable 1 corresponding to the side position of the outer sheath 5 is provided with a heat-conducting round box 15 along the circumferential direction, the outer side of the heat-conducting round box 15 is symmetrically embedded and bonded with outer magnetic strips 16 along the circumferential direction, the middle position of the inner side of the heat-conducting round box 15 is movably provided with an inner sealing round box 17, the outer side of the inner sealing round box 17 is symmetrically embedded and bonded with inner magnetic strips 18 along the circumferential direction, the heat-conducting round box 15 is fixedly connected with the central mounting cable 1 through a connecting frame, the outer side of the inner sealing round box 17 is tightly and slidably bonded with the inner wall of the heat-conducting round box 15, the outer magnetic strips 16 and the inner magnetic strips 18 are heat-resistant magnets, and a group of adjacent outer magnetic strips 16 and inner magnetic strips 18 are mutually attracted;
the middle part of an inner sealed round box 17 is fixedly connected with an isolation crutch plate 19, the positions of the inner side of the inner sealed round box 17, which correspond to the top part and the bottom part of the isolation crutch plate 19, are respectively filled with an arc heat absorption bag 20, the end part of the arc heat absorption bag 20 is fixedly connected with a telescopic end bag 21, the position of the top part of the telescopic end bag 21, which corresponds to the position of the inner sealed round box 17, is bonded with a counterweight sliding block 22, the middle parts of the two ends of the inner sealed round box 17 are respectively embedded with a sealing end block 23, the positions of the inner side of the sealing end block 23, which correspond to the two sides of the counterweight sliding block 22, are fixedly connected with guide sliding plates 24, the two arc heat absorption bags 20 are distributed in central symmetry, the arc heat absorption bags 20 are internally filled with volatile nonflammable solution, the inner cavity of the telescopic end bag 21 is mutually communicated with the inner cavity of the arc heat absorption bag 20, and the inner side of the guide sliding plate 24 is tightly attached to the counterweight sliding block 22;
the outer sheath 5, the filling cable 14 and the heat conducting round box 15 are jointly coated with a sealing sleeve 25, the outer side of the sealing sleeve 25 is wrapped with a wrapping sleeve 26, non-Newtonian fluid strips 27 are uniformly adhered to the outer side of the wrapping sleeve 26 at equal intervals, an independent strip-shaped sealing bag is arranged on the outer side of each non-Newtonian fluid strip 27, high-temperature-resistant and non-flammable non-Newtonian fluid is filled in each non-Newtonian fluid strip 27, each non-Newtonian fluid strip 27 is bent into a ring shape to be wrapped on the outer side of the sealing sleeve 25, the positions of the non-Newtonian fluid strips 27 and the non-Newtonian fluid block 13 are always corresponding to each other, through mutual matching among the non-Newtonian fluid block 13, the wrapping sleeve 26, the non-Newtonian fluid strips 27, the compression connecting strip 28 and related components, the overall structural strength of the crosslinked cable is effectively improved, and the crosslinked cable is protected by the property of the non-Newtonian fluid when being subjected to instantaneous impact, therefore, the crosslinked cable is effectively prevented from being damaged under external impact, meanwhile, through the independent sealing design of the non-Newtonian fluid blocks 13 and the non-Newtonian fluid strips 27, the non-Newtonian fluid strips 27 can be detached through the cutting and wrapping sleeves 26 and the pressing connecting strips 28 in the splicing process of the cable, and the non-Newtonian fluid blocks 13 can be detached by detaching and connecting the dovetail frame 10, so that the splicing and installing convenience of the crosslinked cable is effectively improved, and due to the independent sealing design of the non-Newtonian fluid blocks 13 and the non-Newtonian fluid strips 27, the crosslinked cable can only be damaged by the independent non-Newtonian fluid blocks 13 and the non-Newtonian fluid strips 27 when being punctured and damaged, the performances of other parts of the crosslinked cable can not be influenced, and the service performance of the crosslinked cable is further improved;
meanwhile, due to the nonflammable non-Newtonian fluid materials in the non-Newtonian fluid blocks 13 and the non-Newtonian fluid strips 27, the non-Newtonian fluid blocks 13 and the non-Newtonian fluid strips 27 can be dispersed to the internal gaps of the cross-linked cable after being damaged, so that the phenomenon that the cross-linked cable burns due to overhigh temperature in the using process is effectively prevented, and the flame retardance of the cross-linked cable is effectively improved;
the bottom of the joint of the two ends of the wrapping sleeve 26 is bonded with a compression connecting strip 28, the position, corresponding to the side face of the non-Newtonian fluid strip 27, outside the wrapping sleeve 26 is embedded with a heat-conducting silica gel ring 29, the outside of the heat-conducting silica gel ring 29 is jointly wrapped with a heat-conducting silica gel sleeve 30, two sides of the heat-conducting silica gel ring 29 are tightly attached to the side face of the corresponding non-Newtonian fluid strip 27, the inside of the heat-conducting silica gel sleeve 30 is tightly attached to the outside of the non-Newtonian fluid strip 27, the heat dissipation process in the use process of the cable is optimized, the difference between the internal temperature and the external temperature of the crosslinked cable and the heat dissipation efficiency is utilized, the arc heat absorption bags 20 which are symmetrically distributed in the center alternately stretch and retract to drive the counterweight sliding blocks 22 to slide back and forth, so that the inner sealing round box 17 can circularly rotate inside the heat-conducting round box 15, the heat in the crosslinked cable is further transported outwards through the arc heat absorption bags 20 in the rotation process of the inner sealing round box 17, meanwhile, the rotation of the inner sealing round box 17 and the expansion and contraction of the arc heat absorption bags 20 can continuously consume heat energy, and further improve the heat dissipation performance of the crosslinked cable;
through the mutual matching of the outer side magnetic stripes 16 and the inner side magnetic stripes 18, the initial state of the inner sealing round box 17 can be actively attracted and limited, the inner sealing round box 17 is effectively prevented from reaching a balanced state in the rotating process and being incapable of continuously rotating, the normal use of the cross-linked cable is further effectively ensured, heat on the outer side of the cross-linked cable can be rapidly conducted outwards through the heat conducting silica gel ring 29 and the heat conducting silica gel sleeve 30, the heat on the outer side of the cross-linked cable can be rapidly transferred outwards, and the heat radiation performance of the whole cross-linked cable is further improved;
an external shielding sleeve 31 is tightly wrapped outside a heat-conducting silica gel sleeve 30, a protection cable sleeve 32 is precisely wrapped outside the external shielding sleeve 31, an isolation sealing sleeve 33 is melt-wrapped outside the protection cable sleeve 32, a protection layer 34 is melt-wrapped outside the isolation sealing sleeve 33, a corresponding mark is sprayed on the outer side of the protection layer 34 corresponding to the side position of the non-Newtonian fluid strip 27 and the non-Newtonian fluid block 13, a mark line is sprayed on the outer side of the protection layer 34 corresponding to the bottom position of the compression connecting strip 28, and through the combined action of the installation of the inner ring 2, the elastic supporting block 3, the supporting arc block 4, the protection cable sleeve 32 and related components, the outer sheath 5 and each component inside the outer sheath can be supported in an auxiliary mode through the elastic supporting block 3 and the supporting arc block 4, so that the proper distance can be kept between the inner conductors 9, the inside of the cross-linked cable can be in a circular structure, when the cross-linked cable is extruded from the outside, the cross-linked cable is supported through the elastic supporting block 3 and the supporting arc block 4, the cross-linked cable can maintain the whole circular structure, the outer side of the cross-linked cable can be cut through the protection sleeve 32, and further the core component of the cross-linked cable can be effectively prevented from being directly damaged, and the whole cross-linked cable can be effectively improved in the protection performance;
keep apart the protection to inside conductor 9 through oversheath 5, outer shielding layer 6, inner sheath 7 and internal shield layer 8, protect each inside subassembly of crosslinked cable through isolation seal cover 33 and inoxidizing coating 34, and then the effectual crosslinked cable wholeness ability that has improved has ensured crosslinked cable's normal use.
The working principle and the using process of the invention are as follows: in the practical application process, in the using process of the cable, the elastic supporting block 3 and the supporting arc block 4 connected with the elastic supporting block are jointly installed on the outer side of the central installation rope 1 through the installation inner ring 2, the outer sheath 5 and each component inside the outer sheath can be supported in an auxiliary mode through the supporting arc block 4, so that each inner conductor 9 always keeps a proper distance in the using process of the cable, the outer side of each inner conductor 9 is protected through the outer shielding layer 6, the inner sheath 7 and the inner shielding layer 8, the normal use of the inner conductor 9 in the operation process is ensured, each component inside the inner sheath can be coated and limited through the sealing sleeve 25, random shaking of each component inside the inner sheath in the using process of the cable is prevented, the gap inside the sealing sleeve 25 is filled through the filling rope 14, the attaching of the components inside the sealing sleeve 25 is tighter, the inside of the cross-linked cable is isolated and protected through the outer shielding sleeve 31, the cut-proof protective screen is additionally arranged on the outer side of the cross-linked cable through the cable sleeve 32, the cross-linked protective cable is effectively prevented from being directly damaged by the components after being cut outside the cross-linked cable, and the cross-linked protective screen 33 and the protective layer 34 can further improve the insulating performance of the cross-linked cable;
when the cable is impacted externally, the non-Newtonian fluid block 13 is uniformly installed on the outer side of the outer sheath 5 through the connecting dovetail frame 10, the inner side of the connecting dovetail frame 10 is reinforced through the internal rubber strip 11 and the connecting arc block 12, the connecting dovetail frame 10 can be effectively prevented from deforming when being extruded externally, the non-Newtonian fluid strip 27 can be coated on the outer side of the sealing sleeve 25 through the coating sleeve 26, the end part connecting part of the coating sleeve 26 is extruded and connected in an auxiliary mode through the compression connecting strip 28, and the end part gap of the non-Newtonian fluid strip 27 can be filled through the compression connecting strip 28, so that the integrity of the side surface structure of the non-Newtonian fluid strip 27 is ensured, when the cable is impacted and transmitted to the outer side of the non-Newtonian fluid strip 27 through the protective cable sleeve 32, the isolation sealing sleeve 33 and the protective layer 34, the impact can be intercepted instantaneously through the properties of the non-Newtonian fluid in the non-Newtonian fluid strip 27 and the non-Newtonian fluid block 13, and the damage of the cross-Newtonian fluid under the action of the instantaneous impact can be effectively prevented, so that the impact resistance of the cross-linked cable can be improved;
after the crosslinked cable runs for a long time, a large amount of heat can be naturally generated inside the cable, the heat transmitted to the outer side of the cable can be quickly diffused outwards through the heat-conducting silica gel ring 29 and the heat-conducting silica gel sleeve 30, so that the heat dissipation of the outer side of the cable is realized, in the process of outward diffusion of the heat inside the cable, the heat can be transmitted to the inside of the heat-conducting round box 15, the initial position of the inner sealing round box 17 can be limited through mutual attraction between the outer side magnetic strip 16 and the inner side magnetic strip 18, after the liquid inside the arc heat-absorbing bag 20 close to the center of the cable preferentially absorbs heat and expands, the counterweight sliding block 22 is jacked outwards along the guide sliding plate 24 through the telescopic end bag 21, along with the change of the position of the counterweight sliding block 22, the gravity center of the whole structure of the inner sealing round box 17 is changed, so that the inner sealing round box 17 breaks the balance state maintained by the outer side magnetic strip 16 and the inner side magnetic strip 18 to rotate, so that the arc heat-absorbing bag 20 on the side with lower temperature sucks towards the inner side of the cable, and the heat-conducting silica gel ring 29 and the inner side of the heat-absorbing bag 20 after the expansion of the cable can quickly dissipate heat under the action of the heat-conducting silica gel sleeve 30, so that the inside of the cable can be quickly and the inside of the crosslinked cable can be quickly.
Finally, it should be noted that: 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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The cross-linking flame-retardant efficient power transmission cable is characterized by comprising a central installation cable (1), wherein installation inner rings (2) are uniformly sleeved on the outer sides of the central installation cable (1) at equal intervals, elastic supporting blocks (3) are uniformly and fixedly connected on the outer sides of the installation inner rings (2) at equal intervals along the circumferential direction, and supporting arc blocks (4) are fixedly connected to the end parts of the elastic supporting blocks (3);
a cable which is composed of an outer sheath (5), an outer shielding layer (6), an inner sheath (7), an inner shielding layer (8) and an inner conductor (9) is arranged on the arc surface of the end part of the supporting arc block (4), the outer side of the outer sheath (5) is tightly attached to the arc surface of the end part of the supporting arc block (4), and the outer side of the outer shielding layer (6) is tightly covered by the outer sheath (5);
the heat-conducting round box (15) is arranged on the outer side of the central mounting cable (1) and corresponds to the side face of the outer sheath (5) along the circumferential direction, outer magnetic strips (16) are symmetrically embedded and bonded on the outer side of the heat-conducting round box (15) along the circumferential direction, an inner sealing round box (17) is movably arranged on the middle position of the inner side of the heat-conducting round box (15), inner magnetic strips (18) are symmetrically embedded and bonded on the outer side of the inner sealing round box (17) along the circumferential direction, an isolation crutch plate (19) is fixedly connected to the middle of the inner sealing round box (17), arc heat-absorbing bags (20) are filled on the positions, corresponding to the top and the bottom of the isolation crutch plate (19), of each arc heat-absorbing bag (20), a telescopic end bag (21) is fixedly connected to the end of each arc heat-absorbing bag (20), a counterweight sliding block (22) is bonded on the position, corresponding to the inner sealing round box (17), sealing end blocks (23) are embedded and mounted on the middle of two ends of each inner sealing round box (17), and corresponding to the positions of each counterweight sliding block (22) are fixedly connected to guide sliding plates (24);
installation inner ring (2) outside corresponds supports arc piece (4) side position department along circumferencial direction equidistance fixed mounting and connects dovetail frame (10), it corresponds oversheath (5) side position department and has arranged filling cable (14) to connect dovetail frame (10) tip, oversheath (5), filling cable (14) and heat conduction circle box (15) outside cladding has seal cover (25) jointly, the seal cover (25) outside is wrapped up in around having cladding to wrap up in cover (26), cladding is wrapped up in cover (26) outside equidistance and is evenly bonded and have non-Newtonian fluid strip (27), cladding is wrapped up in cover (26) both ends junction bottom and is bonded and is compressed tightly connecting strip (28), cladding is wrapped up in cover (26) outside and is corresponded non-Newtonian fluid strip (27) side position department embedding and installs heat conduction silica gel ring (29), silica gel ring (29) outside cladding has heat conduction silica gel cover (30) jointly.
2. The cross-linking flame-retardant high-efficiency power transmission cable according to claim 1, wherein the two arc heat-absorbing capsules (20) are distributed in a central symmetry manner, the inside of each arc heat-absorbing capsule (20) is filled with a volatile and non-combustible solution, the inner cavities of the telescopic end capsules (21) and the arc heat-absorbing capsules (20) are communicated with each other, and the inner sides of the guide sliding plates (24) and the outer sides of the counterweight sliding blocks (22) are in close sliding fit.
3. A cross-linked flame retardant high efficiency power transmission cable as claimed in claim 1, wherein the inner shield (7) is adhered to the inner side of the outer shield (6), the inner shield (8) is adhered to the inner side of the inner shield (7), and the inner conductor (9) is closely penetrated inside the inner shield (8).
4. The cross-linked flame-retardant high-efficiency power transmission cable according to claim 1, wherein an inner adhesive tape (11) is bonded to the bottom of the inner side of the connecting dovetail frame (10), a connecting arc block (12) is fixedly connected to the inside of the connecting dovetail frame (10) at a position corresponding to the outer side of the inner adhesive tape (11), and a non-Newtonian fluid block (13) is bonded to the inside of the connecting dovetail frame (10) at a position corresponding to the outer side of the connecting arc block (12);
the middle part of one side of the elastic supporting block (3) is provided with a circular through hole in a penetrating mode, the middle parts of two sides of the elastic supporting block (3) are respectively provided with an arc surface, and one surface of the outer side of the inner rubber strip (11) is tightly attached to the inner side of the connecting arc block (12).
5. The cross-linked flame-retardant high-efficiency power transmission cable according to claim 3, wherein two sides of the heat-conducting silica gel ring (29) are tightly attached to the side surfaces of the corresponding non-Newtonian fluid strips (27), and the inner side of the heat-conducting silica gel sleeve (30) is tightly attached to the outer side of the non-Newtonian fluid strips (27).
6. The cross-linked flame-retardant high-efficiency power transmission cable according to claim 5, wherein the heat-conducting silica gel sleeve (30) is tightly coated with an external shielding sleeve (31), the external shielding sleeve (31) is precisely coated with a protective cable sleeve (32), the protective cable sleeve (32) is melt-coated with an isolation sealing sleeve (33), and the isolation sealing sleeve (33) is melt-coated with a protective layer (34);
the outer side of the protective layer (34) corresponding to the non-Newtonian fluid strip (27) and the side surface of the non-Newtonian fluid block (13) are sprayed with corresponding marks, and the outer side of the protective layer (34) corresponding to the bottom of the compression connecting strip (28) is sprayed with a mark line.
7. The cross-linked flame-retardant efficient power transmission cable according to claim 4, wherein the connecting dovetail frame (10) and the connecting arc block (12) are made of elastic materials, two outer sides of the connecting dovetail frame (10) are tightly and slidably attached to the outer side of the outer sheath (5), and the top surface of the connecting dovetail frame (10) is provided with an arc chamfer and an arc concave surface;
the outside of the non-Newtonian fluid block (13) is provided with a separate sealed capsule, and the interior of the non-Newtonian fluid block (13) is filled with a non-Newtonian fluid which is high temperature resistant and non-flammable.
8. The cross-linked flame-retardant efficient power transmission cable according to claim 1, wherein the heat-conducting round box (15) is fixedly connected with the central mounting cable (1) through a connecting frame, the outer side of the inner sealing round box (17) is tightly attached to the inner wall of the heat-conducting round box (15) in a sliding manner, the outer magnetic strips (16) and the inner magnetic strips (18) are both heat-resistant magnets, and a group of adjacent outer magnetic strips (16) and inner magnetic strips (18) attract each other.
9. The cross-linked flame-retardant high-efficiency power transmission cable according to claim 5, wherein the non-Newtonian fluid strip (27) is provided with a separate strip-shaped sealing bag at the outer side, the non-Newtonian fluid strip (27) is filled with a non-Newtonian fluid which is high temperature resistant and non-flammable, the non-Newtonian fluid strip (27) is bent to be annularly coated on the outer side of the sealing bag (25), and the positions of the non-Newtonian fluid strip (27) and the non-Newtonian fluid block (13) are always corresponding to each other.
10. Use of a cross-linked flame retardant high efficiency power transmission cable according to any of claims 1-9, characterized in that it comprises the steps of:
s1, preparing an apparatus: selecting a proper tool according to the installation and connection position of the cable, constructing a proper working space at the periphery of the connection position according to the installation requirement, and sequentially arranging the tools to be used on the side surface of the cable connection position;
s2, cable end processing: after the detection device detects that the cable is qualified, the cutting device cuts and peels off the protective cable sleeve (32), the isolation sealing sleeve (33) and the protective layer (34) on the outer side of the cable, separates and removes all components mounted on the inner ring (2) mounted on the outer side of the central mounting cable (1), and straightens the inner conductor (9) after the inner conductor is completely exposed;
s3, connection and sealing: the inner conductors (9) of the two cables are connected through corresponding connecting components, and the outer sides of the connecting parts of the cables are sealed through the corresponding components after the cables are connected;
s4, detection processing: after the connection between the two cables is finished, detecting the connected cables through corresponding detection instruments, and performing corresponding modification treatment on the connection positions of the cables;
s5, clearing and ending: after the connection of the two cables is completed, the working space built around the cables is dismantled, and the workpieces are collected and sorted, so that the connection of the cables is completed.
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| 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 |
| CN115910446B (en) * | 2023-01-07 | 2023-05-05 | 远洋线缆有限公司 | Photovoltaic wind power Hou Xin energy cable |
| CN116344104B (en) * | 2023-03-20 | 2023-08-22 | 营东电缆有限公司 | Safety protection cable for large-scale circuit and manufacturing process thereof |
| CN116453753B (en) * | 2023-06-20 | 2023-08-11 | 宝辉线缆集团有限公司 | Multi-tolerance fireproof cable |
| CN117790067B (en) * | 2023-12-19 | 2024-07-05 | 京缆电缆有限公司 | 35KV cable for power generation of wind energy |
| CN118380183A (en) * | 2024-03-27 | 2024-07-23 | 北京城岳科技有限公司 | Armored cable |
| CN118507120B (en) * | 2024-07-17 | 2024-09-10 | 宇航电缆有限公司 | High-temperature-resistant environment-friendly power cable |
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| CN210429368U (en) * | 2019-07-04 | 2020-04-28 | 德信线缆集团有限公司 | Double-layer insulation shielding flame-retardant long-life cable wire |
| CN111599521A (en) * | 2020-05-21 | 2020-08-28 | 江苏江扬特种电缆有限公司 | Impact-resistant cable for ships |
| CN216014884U (en) * | 2021-10-03 | 2022-03-11 | 河北金桥线缆有限公司 | Shielded flame-retardant cable |
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| US7166802B2 (en) * | 2004-12-27 | 2007-01-23 | Prysmian Cavi E Sistemi Energia S.R.L. | Electrical power cable having expanded polymeric layers |
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| CN210429368U (en) * | 2019-07-04 | 2020-04-28 | 德信线缆集团有限公司 | Double-layer insulation shielding flame-retardant long-life cable wire |
| CN111599521A (en) * | 2020-05-21 | 2020-08-28 | 江苏江扬特种电缆有限公司 | Impact-resistant cable for ships |
| CN216014884U (en) * | 2021-10-03 | 2022-03-11 | 河北金桥线缆有限公司 | Shielded flame-retardant cable |
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