CN115000880A - Laying method and laying structure of large-length high-voltage cable - Google Patents
Laying method and laying structure of large-length high-voltage cable Download PDFInfo
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- CN115000880A CN115000880A CN202210598767.3A CN202210598767A CN115000880A CN 115000880 A CN115000880 A CN 115000880A CN 202210598767 A CN202210598767 A CN 202210598767A CN 115000880 A CN115000880 A CN 115000880A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000011084 recovery Methods 0.000 claims description 42
- 230000007246 mechanism Effects 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 7
- 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 claims description 5
- 239000003063 flame retardant Substances 0.000 claims description 5
- 238000004064 recycling Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000003721 gunpowder Substances 0.000 description 8
- 230000006872 improvement Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000013589 supplement Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000009933 burial Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/36—Installations of cables or lines in walls, floors or ceilings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to the technical field of cable laying, in particular to a laying method and a laying structure of a long high-voltage cable. The laying method and the laying support for the large-length high-voltage cable are beneficial to efficiently recycling the large-length high-voltage cable after a geological disaster occurs, so that the situation that rescue work after the disaster is hindered is avoided, and economic loss after the disaster is reduced.
Description
Technical Field
The invention relates to the technical field of cable laying, in particular to a laying method and a laying structure of a long high-voltage cable.
Background
In the construction of the urban power grid layout, cabling refers to the process of laying and installing cables along a surveyed route to form a cable route. According to the use occasion, the method can be divided into a plurality of laying modes such as overhead, underground (pipelines and direct burial), underwater, walls, tunnels and the like, particularly, the large-length high-voltage cables are laid by depending on a stable building structure or geological structure due to large diameter and weight, and equivalently, a special laying space is arranged in the building structure or the geological structure, and the whole large-length high-voltage cable is laid in the laying space.
However, although a long high-voltage cable laid by means of a building and a geological structure (including a bottom tunnel, an underground tunnel, a building wall, and the like) can obtain a stable support, in an area with a lot of geological disasters (such as an area with a lot of earthquakes, a landslide, and an area with a lot of debris flows), the geological structure and the building are easily collapsed due to the occurrence of the geological disasters, so that the support structure originally provided for the cable is damaged and damaged, and after the geological disasters occur, the ground building, the ground tunnel, the underground tunnel, and the soil layer of the underground are also seriously damaged, collapsed and deformed, so that the cable is difficult to take out, and thus the following problems are derived:
1. after a geological disaster occurs, originally laid large-length high-voltage cables are difficult to take out due to damage and deformation of a building or a geological framework, and as the large-length high-voltage cables are long in length, large in diameter and high in hardness, when an excavating device collides with the large-length high-voltage cables in the excavating process in rescue work, an excavating shovel is damaged and is forced to temporarily stop, so that rescue work after the disaster is hindered, for example, after the geological disaster occurs, if a survivable person is buried at the bottom of the ground or under a collapsed building, the high-voltage cables which cannot be taken out in advance seriously hinder the excavating rescue progress of the excavating device, so that serious influence is generated on the rescue work after the disaster;
2. because the manufacturing cost of the cable is high, especially the large-length high-voltage cable has complex internal structure, multiple manufacturing procedures and long production period, the large-length high-voltage cable is expensive in manufacturing cost, and after a geological disaster occurs, if the large-length high-voltage cable cannot be quickly recycled, the economic loss after the disaster can be further increased.
Therefore, a technical scheme which is convenient for efficiently recovering the long high-voltage cable after the occurrence of the geological disaster is needed.
Disclosure of Invention
In view of the above, the invention provides a method and a support for laying a long high-voltage cable, which are helpful for efficiently recycling the long high-voltage cable after a geological disaster occurs, so as to avoid hindering post-disaster rescue work and reducing post-disaster economic loss.
The invention relates to a method for laying a long high-voltage cable, which is characterized in that a supporting space and a recovery space are divided in the laying space, the supporting space and the recovery space are separated by a supporting structure, the supporting structure is utilized to support the long high-voltage cable laid in the supporting space, and when the long high-voltage cable needs to be recovered, the supporting structure is removed so that the long high-voltage cable falls into the recovery space and is in contact with roller groups arranged in the recovery space, and the long high-voltage cable is pulled out of the laying space by the roller groups.
The invention relates to a laying support for a long high-voltage cable, which comprises the long high-voltage cable and a laying pipeline arranged in a building or geological structure, wherein the laying pipeline is internally divided into a supporting channel and a recovery channel which are distributed up and down, a supporting mechanism is detachably arranged between the supporting channel and the recovery channel, the supporting mechanism is suitable for being detached from a port of the laying pipeline, the long high-voltage cable is laid in the supporting channel and supported by the supporting mechanism, and a roller group is arranged at the bottom of the recovery channel; when the supporting mechanism is detached from the laying pipeline, the long high-voltage cable falls downwards into the recovery channel and is in rolling contact with the roller group.
According to the laying method and the laying support for the long high-voltage cable, the support mechanism comprises a sliding plate, the sliding plate supports the long high-voltage cable upwards, guide grooves are formed in two opposite sides in the laying pipeline respectively, the sliding plate and the guide grooves extend along the length direction of the laying pipeline, and the two opposite sides of the sliding plate are clamped in the guide grooves in a sliding mode respectively.
According to the laying method and the laying support for the long high-voltage cable, the end part of the laying pipeline is provided with the locking piece, and the locking piece is locked on the sliding plate.
According to the laying method and the laying support for the long high-voltage cable, the soft sheet extending along the length direction of the laying pipeline is spliced and stacked on the surface of the sliding plate, the upper surface of the soft sheet upwards contacts the long high-voltage cable, the graphite layer for contacting the sliding plate is coated on the lower surface of the soft sheet, and the locking piece is locked on the soft sheet.
According to the laying method and the laying support for the long high-voltage cable, the soft sheet is a paper sheet, and the long high-voltage cable is supported upwards through the sliding plate and the paper sheet together.
According to the laying method and the laying support for the long high-voltage cable, the two ends of the paper sheet are provided with the shearing seams, and the length direction of the shearing seams is consistent with the length direction of the long high-voltage cable.
According to the laying method and the laying support for the long high-voltage cable, the gunpowder lead is abutted to the upper surface of the soft sheet and extends along the length direction of the laying pipeline, and the outer wall of the long high-voltage cable is coated with the flame-retardant layer.
According to the laying method and the laying support for the long high-voltage cable, the safety box is arranged at the outer end of the laying pipeline, and one end of the gunpowder lead is arranged in the safety box.
According to the laying method and the laying support for the long high-voltage cable, the two opposite ends of the laying pipeline are respectively provided with the ferrules, each ferrule is respectively provided with the electronic positioner, and each ferrule is respectively sleeved on the long high-voltage cable.
According to the laying method of the large-length high-voltage cable, the supporting space and the recovery space are divided into the laying space, so that the large-length high-voltage cable can be laid in the supporting space when an electric network is built, the large-length high-voltage cable laid in the supporting space is supported by the supporting structure, and the supporting space and the recovery space are separated by the supporting structure, so that when the large-length high-voltage cable needs to be recovered, the large-length high-voltage cable can fall into the recovery space by detaching the supporting structure, the large-length high-voltage cable falling into the recovery space is contacted with the roller group arranged in the recovery space, and the large-length high-voltage cable can be efficiently and conveniently pulled out from the laying space by the roller group due to mutual rolling contact of the large-length high-voltage cable and the roller group. In practical application, after a geological disaster occurs, rescue workers can firstly cut off at least one end of a long high-voltage cable in a building or a geological structure independently, disconnect at least one end of the long high-voltage cable from an external power grid, and then apply dismantling to a bearing structure in a laying space.
The invention relates to a laying support for a long high-voltage cable, which divides the interior of a laying pipeline arranged in a building or a geological structure into a supporting channel and a recovery channel which are distributed up and down, when the cable is laid, the long high-voltage cable is laid in the supporting channel, and the long high-voltage cable laid in the supporting channel is supported upwards by utilizing a supporting mechanism between the supporting channel and the recovery channel to assist the long high-voltage cable to be stably laid in the laying pipeline, when the long high-voltage cable is difficult to take out from the supporting channel after geological disasters occur, a rescuer can firstly cut at least one end of the long high-voltage cable in the laying pipeline independently to disconnect at least one end of the long high-voltage cable from an external power grid, and then can remove the supporting mechanism from a port of the laying pipeline, make the big length high tension cable in the supporting channel lose support and because dead weight and fall into naturally in the recovery passageway, fall into big length high tension cable in the recovery passageway and recovery passageway bottom roller group rolling contact to can ensure that big length high tension cable can keep smooth and easy at the in-process of being pulled out, rescue personnel just can pull out big length high tension cable from laying the pipeline easily this moment, can retrieve big length high tension cable high-efficiently through this mode, effectively avoid hindering rescue work after the calamity and reducing the economic loss after the calamity.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic representation of the laying method of the present invention;
FIG. 2 is a front view of the internal structure of the present invention;
FIG. 3 is a side view of the internal structure of the present invention;
FIG. 4 is an active schematic of the present invention;
FIG. 5 is an active schematic of the present invention;
FIG. 6 is a schematic diagram of a further embodiment of the present invention;
FIG. 7 is a schematic partial structure of a further aspect of the present invention;
FIG. 8 is a schematic diagram of a further embodiment of the present invention;
FIG. 9 is a schematic partial structure view of a further aspect of the present invention;
FIG. 10 is a schematic structural view of a further embodiment of the present invention;
FIG. 11 is a schematic structural view of a further embodiment of the present invention;
FIG. 12 is a schematic structural view of a further embodiment of the present invention;
FIG. 13 is a schematic structural view of a further embodiment of the present invention;
FIG. 14 is a partial schematic structural view of a further aspect of the present invention;
FIG. 15 is a schematic partial structure view of a further aspect of the present invention;
FIG. 16 is a partial schematic structural view of a further aspect of the present invention;
fig. 17 is a schematic structural view of a further embodiment of the present invention.
Reference numerals are as follows:
100. a long length of high voltage cable;
1. laying a pipeline, 2, a supporting channel, 3, a recycling channel, 4, a supporting mechanism, 5, a roller group, 6, a sliding plate, 7, a graphite layer, 8, a guide groove, 9, a locking piece, 10, a soft sheet, 11, a paper sheet, 12, a shear seam, 13, a plastic sheet, 14, a gunpowder lead, 15, a flame-retardant layer, 16, a ferrule, 17 and an electronic positioner.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
As shown in fig. 1, a method for laying a long high-voltage cable, which comprises dividing a supporting space and a recovering space in the laying space, separating the supporting space and the recovering space by a supporting structure, laying the long high-voltage cable in the supporting space, supporting the long high-voltage cable laid in the supporting space by the supporting structure, when the long high-voltage cable needs to be recovered, making the long high-voltage cable fall into the recovering space by removing the supporting structure, and making the long high-voltage cable contact with roller sets arranged in the recovering space, so as to smoothly pull the long high-voltage cable out of the laying space by the roller sets.
It can be understood that, in the laying method of the embodiment, since the supporting space and the recovering space are divided into the laying space, when an electrical network is established, the long high-voltage cable can be laid in the supporting space, and the supporting structure is used for supporting the long high-voltage cable laid in the supporting space, and the supporting space and the recovering space are separated by the supporting structure, when the long high-voltage cable needs to be recovered, the long high-voltage cable can fall into the recovering space by dismounting the supporting structure, the long high-voltage cable falling into the recovering space is contacted with the roller sets arranged in the recovering space, and the long high-voltage cable can be efficiently and conveniently pulled out from the laying space by using the roller sets due to the mutual rolling contact of the long high-voltage cable and the roller sets. In practical application, after a geological disaster occurs, rescue workers can firstly cut off at least one end of a long high-voltage cable in a building or a geological structure independently, disconnect at least one end of the long high-voltage cable from an external power grid, and then dismantle a bearing structure in a laying space, the long high-voltage cable originally laid in the bearing space can automatically fall into a recycling space due to self weight, the long high-voltage cable falling into the recycling space is contacted with roller groups arranged in the recycling space, at the moment, the rescue workers can easily pull the long high-voltage cable out of the laying space, the long high-voltage cable can be efficiently recycled through the mode, and the situations that rescue work after the disaster is hindered and economic loss after the disaster is reduced are effectively avoided.
As shown in fig. 2 and fig. 3, the embodiment further implements a laying structure of a long high-voltage cable, including a long high-voltage cable 100, and further including a laying pipeline 1 for being disposed in a building or a geological structure, a supporting channel 2 and a recovery channel 3 are divided in the laying pipeline 1, the supporting channel 2 and the recovery channel 3 are distributed up and down, a supporting mechanism 4 is detachably disposed between the supporting channel 2 and the recovery channel 3, the supporting mechanism 4 can be detached from a port of the laying pipeline 1, the long high-voltage cable 100 is laid in the supporting channel 2, the long high-voltage cable 100 is supported by the supporting mechanism 4, and a roller group 5 is arranged at the bottom of the recovery channel 3. As shown in fig. 3 and 4, when the support mechanism 4 is detached from the laying pipe 1, the long high-voltage cable 100 falls down into the recovery passage 3 and is in rolling contact with the roller group 5.
As will be understood from fig. 1 to 4, in the present embodiment, the interior of a laying pipe 1 installed in a building or a geological structure is divided into a supporting passage 2 and a recovery passage 3 which are distributed vertically, when laying cables, a long high-voltage cable is laid in the supporting passage 2, and the long high-voltage cable 100 laid in the supporting passage 2 is supported upward by a supporting mechanism 4 between the supporting passage 2 and the recovery passage 3, so as to assist the long high-voltage cable 100 to be stably laid in the laying pipe 1, when the long high-voltage cable 100 is difficult to be taken out from the supporting passage 2 after a geological disaster occurs, a rescuer may first cut at least one end of the long high-voltage cable 100 alone in the laying pipe 1, disconnect at least one end of the long high-voltage cable 100 from an external power grid, and then remove the supporting mechanism 4 from a port of the laying pipe 1, make the major length high tension cable 100 in the supporting channel 2 lose support and because dead weight and fall into recovery passageway 3 naturally, the major length high tension cable 100 that falls into recovery passageway 3 and the roller group 5 rolling contact of recovery passageway 3 bottom to can ensure that major length high tension cable 100 can keep smooth and easy at the in-process of being pulled out, the rescue personnel just can be pulled out major length high tension cable 100 from laying pipeline 1 easily this moment, can retrieve major length high tension cable 100 high-efficiently through this mode, effectively avoid hindering rescue work after the calamity and reducing the economic loss after the calamity.
In this embodiment, the laying pipe 1 is optionally a rectangular pipe.
As a further supplement and improvement to the present embodiment, as shown in fig. 6, 7 and 8, the supporting mechanism 4 includes a sliding plate 6, the sliding plate 6 supports the long high-voltage cable 100 upwards, two opposite sides in the laying pipeline 1 are respectively formed with a guide groove 8, the sliding plate 6 and the guide groove 8 both extend along the length direction of the laying pipeline 1, and two opposite sides of the sliding plate 6 are respectively slidably clamped in the guide grooves 8.
It can be understood that, because the relative both sides of slide 6 slide the joint respectively in guide slot 8, consequently can be convenient for slide 6 to take out from guide slot 8, make slide 6 can take out smoothly from laying pipeline 1, thereby when needs retrieve long-length high tension cable 100, as long as take out slide 6 from guide slot 8 at laying pipeline 1's tip, long-length high tension cable 100's bottom just can fall into recovery channel 3 downwards because of losing the support, so that long-length high tension cable 100's bottom can with the contact of roller group 5, finally alright draw out laying pipeline 1 to long-length high tension cable 100 easily, it is more convenient to operate.
As a further complement and improvement to this embodiment, in connection with fig. 9, the end of the laying pipe 1 is provided with a locking element 9, which locking element 9 is locked to the skid 6.
It can be understood that, when the large-length high-voltage cable 100 is not required to be recovered, in order to prevent the sliding plate 6 from being easily drawn out by sliding, the end of the sliding plate 6 may be locked by the locking member 9, so that the sliding plate 6 cannot slide without being unlocked, and when the large-length high-voltage cable 100 is required to be recovered, the sliding plate 6 may be smoothly drawn out by only operating the locking member 9 to lock the sliding plate 6.
However, in the above-mentioned further scheme, since the long length high voltage cable 100 has a large weight, the sliding plate 6 may continuously receive a large pressure of the long length high voltage cable 100, so that a pulling force required to draw out the sliding plate 6 is large, and it is inconvenient for the rescuer to perform a manual operation, and thus there may still be a large difficulty in the operation.
In order to solve the above problem, as shown in fig. 10 and 11, a soft sheet 10 is laminated on the surface of the sliding plate 6, the soft sheet 10 extends along the longitudinal direction of the laying pipe 1, the upper surface of the soft sheet 10 is upwardly contacted with the long high-voltage cable 100, a graphite layer 7 is coated on the lower surface of the soft sheet 10, the graphite layer 7 is contacted with the sliding plate 6, and the locking piece 9 is locked to the soft sheet 10.
It can be understood that, in the process of laying the cable, the sliding plate 6 can be sleeved in the guide groove 8 together with the soft sheet 10 on the surface, when the long high-voltage cable 100 needs to be recovered, the locking piece 9 is operated to unlock the sliding plate 6, and the locking piece 9 still keeps locking the end of the soft sheet 10, so that the soft sheet 10 cannot move along with the sliding plate 6, and at the same time, because the lower surface of the soft sheet 10 is coated with the graphite layer 7 for contacting the sliding plate 6, under the lubricating action of the graphite layer 7, the sliding plate 6 can more easily slide with the lower surface of the soft sheet 10, so that the sliding plate 6 can be effectively and smoothly taken out from the laying pipeline 1, and in the process that the sliding plate 6 gradually leaves the soft sheet 10, the soft sheet 10 cannot stably support the long high-voltage cable 100 upwards, and the pressure of the long high-voltage cable 100 can instantly crush the soft sheet 10 downwards, the flexible sheet 10 is damaged or separated from the guiding groove 8, and the long high-voltage cable 100 can smoothly fall into the recycling channel 3 and finally be smoothly pulled out, so that the operation is simpler and more effective.
As a further supplement and improvement to this embodiment, as shown in fig. 12 and 13, the soft sheet 10 is a paper sheet 11, the graphite layer 7 is also coated on the lower surface of the paper sheet 11, and the sliding plate 6 and the paper sheet 11 jointly support the long high-voltage cable 100 upward.
It can be understood that, since the slide plate 6 and the paper sheet 11 support the long high-voltage cable 100 upwards together, the long high-voltage cable 100 can tear the paper sheet 11 downwards more easily and fall into the recycling channel 3 smoothly after the slide plate 6 is pulled away from the lower surface of the paper sheet 11 under the lubricating action of the graphite layer 7. The long high-voltage cable 100 can be more easily dropped into the recovery passage 3 by utilizing the characteristic that the paper sheet 11 is easily torn.
However, in practical applications, since the paper sheet 11 is easy to rot due to a humid environment, in practical applications, it is often necessary to select a paper sheet material containing a plastic component so that the paper sheet 11 is not easy to rot, but in the above-mentioned solution, if the paper sheet 11 with a relatively large plastic component is used in practical production, even if the sliding plate 6 is pulled away from the bottom of the paper sheet 11, the paper sheet 11 still has a chance to continuously support the long high-voltage cable 100 upwards, which may prevent the long-voltage cable 100 from falling downwards into the recycling channel 3.
In order to solve the above problem, as a further supplement and improvement to the present embodiment, referring to fig. 14, the paper sheet 11 has two ends provided with the cut seams 12, and the length direction of the cut seams 12 is identical to the length direction of the long high-voltage cable 100.
It can be understood that, because the two ends of the paper sheet 11 are pre-provided with the cut seams 12, the paper sheet 11 is easier to be torn, so that the paper sheet 11 can be effectively ensured to be torn by the pressure of the long high-voltage cable 100 more easily, and the long high-voltage cable 100 can be ensured to fall into the recycling channel 3 smoothly.
As a further supplement and improvement to this embodiment, in order to further ensure that the soft sheet 10 can be crushed and torn by the pressure of the long high-voltage cable 100, in this embodiment, as shown in fig. 10, 11, 15, and 16, the upper surface of the soft sheet 10 is abutted with the explosive lead 14, the explosive lead 14 extends along the length direction of the laying pipe 1, and the outer wall of the long high-voltage cable 100 is covered with the flame retardant layer 15.
It can be understood that, when the long high-voltage cable 100 needs to be recovered, the sliding plate 6 is pulled away from the bottom of the soft sheet 10, and if the soft sheet 10 still cannot be crushed by the long high-voltage cable 100 at this time, the powder lead 14 is ignited from the end position of the laying pipeline 1, so that the powder lead 14 burns along the length direction of the soft sheet 10, and thus the short instant flame generated by the powder lead 14 can burn the soft sheet 10 to destroy the internal structure of the soft sheet 10, so that the soft sheet 10 cannot continue to support the long high-voltage cable 100, thereby effectively ensuring that the long high-voltage cable 100 can smoothly crush the soft sheet 10 and further fall into the recovery channel 3. In addition, since the outer wall of the long high-voltage cable 100 is coated with the flame retardant layer 15, the long high-voltage cable 100 can be prevented from being ignited by the instantaneous flame generated by the gunpowder lead 14, and the long high-voltage cable 100 can be prevented from being damaged.
It should be noted that, in the rescue work after disaster, the soft sheet 10 can be quickly destroyed by igniting the powder lead 14, so that the long high-voltage cable 100 can quickly fall into the recovery channel 3, which is helpful for quickly recovering the long high-voltage cable 100, and the ultra-high efficiency of the recovery work can be ensured, and is more matched with the urgency of the rescue work.
As a further complement and improvement to the present embodiment, the outer end of the laying pipe 1 is provided with a safety box (not shown), and one end of the powder lead 14 is arranged in the safety box (not shown).
It can be understood that when the large-length high-voltage cable 100 does not need to be recovered, the end part of the gunpowder lead 14 can be protected by the safety box, the end part of the gunpowder lead 14 is prevented from being directly exposed to the outside at the outer end of the laying pipeline 1, the end part of the gunpowder lead 14 is protected, and the gunpowder lead 14 is prevented from being ignited randomly by the outside.
As a further supplement and improvement to this embodiment, as shown in fig. 17, ferrules 16 are respectively provided at opposite ends of the installation pipe 1, electronic positioners 17 are respectively built in the two ferrules 16, and the respective ferrules 16 are respectively fitted to the long high-voltage cables 100.
It can be understood that two ferrules 16 with built-in electronic positioners 17 are respectively sleeved on the long high-voltage cable 100 from the two opposite ends of the laying pipeline 1, so that in the process of rescue after disasters, the two ends of the laying pipeline 1 can be accurately positioned through the electronic positioners 17, so as to find out the end part of the long high-voltage cable 100, and after a rescuer accurately finds out the position information of the long high-voltage cable 100, at least one end of the long high-voltage cable 100 in the laying pipeline 1 can be independently cut off, at least one end of the long high-voltage cable 100 is disconnected from an external power grid, and then the recovery work of the long high-voltage cable 100 can be smoothly carried out.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A laying method of a long high-voltage cable is characterized in that a supporting space and a recovery space are divided in a laying space, the supporting space and the recovery space are separated through a supporting structure, the long high-voltage cable laid in the supporting space is supported through the supporting structure, when the long high-voltage cable needs to be recovered, the supporting structure is detached to enable the long high-voltage cable to fall into the recovery space and to be in contact with roller sets arranged in the recovery space, and the long high-voltage cable is pulled out of the laying space through the roller sets.
2. A laying structure of a large-length high-voltage cable comprises the large-length high-voltage cable (100) and is characterized by further comprising a laying pipeline (1) arranged in a building or geological structure, wherein a supporting channel (2) and a recovery channel (3) which are distributed up and down are divided in the laying pipeline (1), a supporting mechanism (4) is detachably arranged between the supporting channel (2) and the recovery channel (3), the supporting mechanism (4) is suitable for being detached from a port of the laying pipeline (1), the large-length high-voltage cable (100) is laid in the supporting channel (2) and supported by the supporting mechanism (4), and a roller shaft group (5) is arranged at the bottom of the recovery channel (3); when the supporting mechanism (4) is detached from the laying pipeline (1), the long high-voltage cable (100) falls downwards into the recovery channel (3) and is in rolling contact with the roller group (5).
3. The laying structure of a long high-voltage cable according to claim 2, wherein said supporting mechanism (4) comprises a sliding plate (6), said sliding plate (6) supports said long high-voltage cable (100) upwards, two opposite sides in said laying pipe (1) are respectively formed with a guide groove (8), said sliding plate (6) and said guide groove (8) both extend along the length direction of said laying pipe (1), and two opposite sides of said sliding plate (6) are respectively slidably engaged in said guide grooves (8).
4. Laying structure of a long high voltage cable according to claim 3, characterized in that the end of the laying pipe (1) is provided with a locking piece (9), said locking piece (9) being locked to the sliding plate (6).
5. The laying structure of a long high-voltage cable according to claim 4, wherein the surface of the sliding plate (6) is spliced with a soft sheet (10) extending along the length direction of the laying pipe (1), the upper surface of the soft sheet (10) is upwards contacted with the long high-voltage cable (100), the lower surface of the soft sheet (10) is coated with a graphite layer (7) for contacting the sliding plate (6), and the locking piece (9) is locked with the soft sheet (10).
6. Laying structure of a high-voltage long cable according to claim 5, characterized in that said soft sheet (10) is a paper sheet (11), said high-voltage long cable (100) being supported upward by said sled (6) together with said paper sheet (11).
7. The laying structure of a long high-voltage cable according to claim 6, wherein the paper sheet (11) has cut seams (12) formed at both ends thereof, and the length direction of the cut seams (12) is identical to the length direction of the long high-voltage cable (100).
8. The laying structure of a long high-voltage cable according to claim 6, wherein the soft sheet (10) has a powder lead (14) abutted on the upper surface thereof, the powder lead (14) extends along the length direction of the laying pipe (1), and the outer wall of the long high-voltage cable (100) is coated with a flame retardant layer (15).
9. Laying structure of long high-voltage cables according to claim 8, characterised in that the outer end of the laying pipe (1) is provided with a safety box inside which one end of the powder lead (14) is arranged.
10. Laying structure for a long high-voltage cable according to claim 9, characterised in that said laying pipe (1) is provided with respective ferrules (16) at opposite ends thereof, each ferrule (16) being provided with a respective electronic locator (17), each ferrule (16) being sleeved to a respective long high-voltage cable (100).
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| CN202210598767.3A CN115000880B (en) | 2022-05-30 | 2022-05-30 | Laying method and laying structure of long-length high-voltage cable |
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| CN115000880B CN115000880B (en) | 2024-04-05 |
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| JPH0879931A (en) * | 1994-09-06 | 1996-03-22 | Hitachi Plant Eng & Constr Co Ltd | Method for removing cable from cable tray |
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| CN115000880B (en) | 2024-04-05 |
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