WO2022022385A1 - 一种变电构架 - Google Patents

一种变电构架 Download PDF

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Publication number
WO2022022385A1
WO2022022385A1 PCT/CN2021/107919 CN2021107919W WO2022022385A1 WO 2022022385 A1 WO2022022385 A1 WO 2022022385A1 CN 2021107919 W CN2021107919 W CN 2021107919W WO 2022022385 A1 WO2022022385 A1 WO 2022022385A1
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WO
WIPO (PCT)
Prior art keywords
support
assembly
beam assembly
hanging
wire
Prior art date
Application number
PCT/CN2021/107919
Other languages
English (en)
French (fr)
Inventor
马斌
庄奥运
Original Assignee
江苏神马电力股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202010761554.9A external-priority patent/CN111864544A/zh
Priority claimed from CN202010763324.6A external-priority patent/CN111864545A/zh
Priority claimed from CN202010763332.0A external-priority patent/CN111864546A/zh
Application filed by 江苏神马电力股份有限公司 filed Critical 江苏神马电力股份有限公司
Priority to EP21793838.0A priority Critical patent/EP3975352A4/en
Priority to BR112021021812A priority patent/BR112021021812A2/pt
Priority to US17/612,278 priority patent/US12119635B2/en
Publication of WO2022022385A1 publication Critical patent/WO2022022385A1/zh

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Classifications

    • 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
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/05—Suspension arrangements or devices for electric cables or lines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B5/00—Non-enclosed substations; Substations with enclosed and non-enclosed equipment
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/02—Suspension insulators; Strain insulators
    • H01B17/06—Fastening of insulator to support, to conductor, or to adjoining insulator
    • H01B17/10—Fastening of insulator to support, to conductor, or to adjoining insulator by intermediate link
    • 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
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers

Definitions

  • the present application relates to the technical field of substation equipment, and in particular, to a substation structure.
  • the substation frame is used to suspend and support conductors to connect switchgear or other electrical equipment.
  • the current substation frame is mostly a combination of traditional iron frame and tensile insulator strings, pendant insulator strings and jumper wires, which have defects such as heavy weight, easy corrosion or cracking, etc.
  • the frame also occupies a large area. , transportation and installation difficulties, etc. Therefore, a mature substation architecture design solution is urgently needed to solve the above problems.
  • the present application provides a substation structure, which can solve the problems that the existing substation structure occupies a large area and is difficult to transport, install and maintain.
  • a technical solution adopted in the present application is to provide a substation structure, which includes: a support assembly, at least two are arranged at intervals along a first direction, and at least one support assembly includes a first support part and a first support part connected to each other.
  • the second support part; the beam assembly is erected between two adjacent support assemblies; wherein, the first support part is located between the beam assembly and the second support part, and the first support part is made of composite insulating material, and the second support part for metal materials.
  • all support assemblies include a first support portion and a second support portion.
  • the beam assembly is a composite insulating material.
  • a flange assembly is provided between the support assembly and the beam assembly, and the end of the support assembly and the end of the beam assembly are respectively connected to the flange assembly.
  • the first wire hanging plate is provided with wire hanging holes for hanging wires.
  • it includes: a shielding shell, the cover is provided outside the flange assembly.
  • the beam assembly includes at least two beam sections, two adjacent beam sections are connected by flanges, and the substation frame includes: a second hanging plate, the second hanging plate is arranged on the two adjacent beams At the flanges between the segments, the second hanging plate is provided with hanging holes for hanging wires.
  • it includes: a plurality of hoops, arranged on the beam assembly at intervals; a third wire hanging plate, arranged on the outer wall of the hooping, and the third wire hanging plate has wire hanging holes for hanging wires.
  • the inner wall of the hoop is provided with a number of first slots arranged at intervals and a number of second slots arranged at intervals, the first slots are arranged around the outer wall of the beam assembly, and the second slots are staggered with the first slots set up.
  • the wire hanging holes are used to connect with the wire hanging fittings, and at least one wire hanging hole is a waist-shaped hole or an arc-shaped hole, which is used for the effect of the wire hanging fittings on the beam assembly after the wire hanging fittings are rotated.
  • the direction of the force remains intersecting the centerline of the beam assembly.
  • a wiring post which is provided corresponding to the support component, the wiring post is made of composite insulating material, the wiring post includes a first end provided on the support component and a second end opposite to the first end, the first end The height of the two ends is higher than the height of the beam assembly, the second ends of all wiring posts are electrically connected, the second ends are used to hang the ground wire, and the ground lead wire connects the ground wire and the ground point along at least one wiring post.
  • the beam assembly is gradually lifted upward in a direction away from the support assemblies on both sides to form an arch beam assembly.
  • the beam assembly includes a middle section and side-phase sections disposed at both ends of the middle section, the side-phase sections are made of composite insulating material, and the middle section is made of metal material.
  • three or a multiple of three hooking points for hooking wires are disposed between two adjacent support assemblies.
  • the substation frame includes an auxiliary support member, which is disposed between two adjacent support assemblies and supports the beam assembly, and the auxiliary support member includes a first support member and a second support member that are connected to each other.
  • the support is located between the beam assembly and the second support, and the first support is made of composite insulating material.
  • the beneficial effects of the present application are: different from the prior art, the first support part connected to the beam assembly in the support assembly is set to be a composite insulating material, and since the first support part connected to the beam assembly is a composite insulating material, it has excellent Therefore, the electrical safety distance between the wire and the support assembly can be reduced, thereby effectively reducing the width of the substation frame and the cost of land acquisition.
  • the second support part is made of metal material, which can reduce the cost.
  • the supporting components of the above-mentioned composite structure are light in weight and are not prone to rust and cracking, which correspondingly solves the problem of difficulty in transportation, installation and maintenance, and reduces transportation and installation costs.
  • FIG. 1 is a schematic diagram of the overall structure of an embodiment of a substation structure of the present application
  • FIG. 2 is a top-view structural schematic diagram of an embodiment of the substation structure of the present application.
  • FIG. 3 is a partial structural schematic diagram of an embodiment of the substation structure of the present application, which is mainly used to display the first hanging board;
  • FIG. 4 is a partial structural schematic diagram of an embodiment of the substation structure of the present application, which is mainly used for displaying the second wiring board;
  • FIG. 5 is a schematic structural diagram of a hoop and a third hanging plate in another embodiment of the substation structure of the present application.
  • FIG. 6 is a schematic diagram of a partial structure of an embodiment of the substation structure of the present application, which is mainly used for showing a voltage equalizing ring;
  • FIG. 7 is a schematic diagram of the overall structure of another embodiment of the substation structure of the present application.
  • FIG. 8 is a schematic diagram of the overall structure of another embodiment of the substation structure of the present application.
  • FIG. 9 is a schematic diagram of the overall structure of a row substation frame in another embodiment of the substation frame of the present application.
  • FIG. 10 is a schematic diagram of the overall structure of a row-line substation frame in another embodiment of the substation frame of the present application.
  • An embodiment of the present application provides a substation structure 100, as shown in FIG. 1 and FIG. 2, including a support assembly 110 and a beam assembly 120, at least two support assemblies 110 are arranged at intervals along the first direction, and the beam assembly 120 is erected Between two adjacent support assemblies 110 , the support assemblies 110 support the beam assembly 120 .
  • the beam assembly 120 is used to hook the wires.
  • at least one support assembly 110 includes a first support portion 111 and a second support portion 112 connected to each other, the first support portion 111 is located between the beam assembly 120 and the second support portion 112, and the first support portion 111 is made of composite insulating material , the second support portion 112 is made of metal material.
  • the first support portion 111 connected to the beam assembly 120 is made of composite insulating material, it has excellent electrical insulation performance, thereby reducing the electrical safety distance between the wire and the support assembly 110, thereby effectively reducing the width of the substation frame 100 and land acquisition.
  • the second support part 112 is made of metal material, which can achieve the effect of reducing the cost.
  • the support assembly 110 of the above-mentioned composite structure is light in weight, and is not prone to rust and cracking, which correspondingly solves the problem of difficulty in transportation, installation and maintenance, and reduces transportation, installation and maintenance costs.
  • all the support components 110 include a first support portion 111 and a second support portion 112 , and the first support portion 111 is made of composite insulating materials to give full play to its electrical insulation. performance, and minimize the electrical safety distance between the conductor and the support assembly 110, thereby reducing the width of the substation structure and the cost of land acquisition.
  • the beam assembly 120 is made of metal material, and a combination of tensile insulator strings, pendant insulator strings or jumpers is required to connect the wires, and the overall height of the substation frame 100 is relatively high.
  • the beam assembly 120 is a composite insulating material, which has excellent electrical insulation properties, and can be directly connected to wires without using structures such as overhang insulators.
  • the height of the substation frame 100 can be reduced as a whole, and the material consumption of the structures such as the hanging insulators and the supporting components 110 can be reduced; Eliminate the problem of wind deflection and discharge that may exist in the substation frame 100; the substation frame 100 using composite insulating materials is light in weight, not easy to rust and crack, has high transportation and installation efficiency, and can realize maintenance-free throughout the life cycle, reducing the original porcelain Operation and maintenance costs of insulator strings.
  • two supporting components 110 are arranged at intervals along the first direction.
  • the substation frame 100 is a single-span substation frame 100 .
  • At least three, for example, three, four or more supporting components 110 are arranged at intervals along the first direction, and the substation frame 100 is a row substation frame in this case. 100.
  • the beam assembly 120 and the first support portion 111 may adopt the structure of a strut insulator, and the strut insulator includes an insulator inside and a rubber shed covering the outside of the insulator.
  • the insulator may be an insulating tube or an insulating mandrel.
  • the insulating tube can be glass fiber or aramid fiber impregnated epoxy resin through winding and solidified glass steel pipe or a hollow pultruded tube formed by pultrusion;
  • the insulating mandrel can be glass fiber or aramid fiber impregnated epoxy resin through A solid mandrel formed by winding and solidification or a pultruded mandrel formed by pultrusion;
  • the rubber shed can be made of high-temperature vulcanized silicone rubber or other forms of rubber materials;
  • flanges are provided at both ends of the insulator,
  • the flanges at both ends of the beam assembly 120 are fixedly connected to the two flange assemblies 130 at both ends of the substation frame 100 (as described below) respectively, and the flanges at both ends of the first support portion 111 are respectively connected to the flange assemblies 130 and the second support portion.
  • the fixed connection can be connected by other connecting pieces, or fixed by welding, or a combination of the above connection methods.
  • the beam assembly 120 is gradually lifted upward along the direction away from the support assemblies 110 on both sides to form an arched beam assembly 120 , so that the substation frame 100 can use its arched structure to offset the vertical arc. vertical, reducing safety hazards.
  • a flange assembly 130 is provided between the support assembly 110 and the beam assembly 120 , and the end of the support assembly 110 and the end of the beam assembly 120 are respectively connected with the flange assembly 130 .
  • the flange assembly 130 includes a cylindrical body 133, the axis of the cylindrical body 133 is inclined upward and has an acute angle with the horizontal plane, so as to ensure that the cylindrical body 133 can have a tendency to pre-arch upward after installation.
  • an interlocking pre-arch angle can be generated, so that the beam assembly 120 can be gradually lifted upward in a direction away from the support assemblies 110 on both sides to form an arched beam assembly 120 .
  • the substation structure 100 further includes a first hanging plate 141 .
  • the first hanging plate 141 is arranged at the connection between the beam assembly 120 and the flange assembly 130 .
  • the first hanging plate 141 has several Wire hanging hole 144, the wire hanging hole 144 is used for hanging wires. That is, a hooking point is formed at the first hooking plate 141 .
  • the end of the flange assembly 130 is provided with a first flange 132
  • the end of the beam assembly 120 is provided with a second flange 123
  • the flanges 123 are connected by a first fastener (not shown in the figure)
  • the first hanging plate 141 is sandwiched between the first flange 132 and the second flange 123 .
  • the first hanging plate 141 is provided with two hanging holes 144 and a reserved hole (not shown in the figure), wherein the reserved holes are located directly below the beam assembly 120, and the two hanging holes 144 are symmetrically arranged in the Leave holes on both sides.
  • the beam assembly 120 includes at least two beam segments 121 , for example, two, three or more, and the adjacent two beam segments 121 are connected by flanges to change
  • the electrical frame 100 includes a second hanging plate 142.
  • the second hanging plate 142 is disposed at the flange between two adjacent beam sections 121.
  • the second hanging plate 142 defines a plurality of hanging holes 144.
  • the hanging holes 144 For hooking up the wire 200. That is, the second hooking plate 142 forms a hooking point.
  • the beam assembly 120 includes two beam sections 121 , the adjacent ends of the two beam sections 121 are respectively connected to a third flange 124 , and the second hanging plate 142 is sandwiched between the two between the third flanges 124 .
  • the second hanging plate 142 is provided with two hanging holes 144 and one reserved hole, wherein the reserved hole is located directly below the beam assembly 120, and the two hanging holes 144 are symmetrically arranged on both sides of the reserved hole.
  • the substation structure 100 is a single-span substation structure 100 .
  • the single-span substation frame 100 is provided with two support assemblies 110 spaced along the first direction, and two ends of the beam assembly 120 are respectively connected to the top ends of the two support assemblies 110 through flange assemblies 130 .
  • the two first hanging plates 141 provided at both ends of the single-span substation structure 100 and the one second hanging plate 142 provided in the middle of the beam assembly 120 form three hanging points, which are respectively connected to the three-phase A, B, and C phases. wire.
  • the beam assembly 120 may not be arranged in sections, that is, the entire beam assembly 120 is a long-strip composite strut insulator, and the long-strip composite strut insulator includes an inner insulator and a rubber shed covering the outside of the insulator. , the insulator and the rubber shed are the same as the above, and will not be repeated here. Among them, as shown in FIG.
  • the substation structure 100 includes a plurality of hoops 122 and a third hanging plate 143 , the plurality of hoops 122 are sleeved on the beam assembly 120 at intervals, and the third hanging plate 143 is arranged on the outer wall of the hoops 122 , the third hanging plate 143 has a number of hanging holes 144, and the hanging holes 144 are used for hanging wires. That is, a hooking point is formed at the third hooking plate 143 .
  • the hoop 122 can be glued and fixed on the beam assembly 120 .
  • the hoop 122 is first glued and fixed on the insulator, and then the whole is covered with a rubber shed, and the rubber shed is covered on the side of the hoop 122 . At both ends, the hoop 122 is sealed with the rubber shed.
  • the inner wall of the hoop 122 is provided with a number of first slots 1221 arranged at intervals and a number of second slots 1222 arranged at intervals.
  • the first slots 1221 are arranged around the outer wall of the beam assembly 120, and the second slots 1222 are staggered with the first slots 1221.
  • the first slot 1221 and the second slot 1222 work together to limit the axial sliding and radial rotation of the hoop 122 in the beam assembly 120, and keep the connection between the hoop 122 and the beam assembly 120 stable;
  • the first slot 1221 and the second slot 1222 are alternately arranged.
  • the glue material can flow evenly in the first slot 1221 and the second slot 1222, which is beneficial to the bonding between the hoop 122 and the insulator. Glue pack, improve the bonding strength.
  • the third hanging plate 143 is integrally formed with the hoop 122 , the first slot 1221 and the second slot 1222 on the inner wall of the hoop 122 are vertically arranged, and the third hanging plate 143 is provided with There are two wire hanging holes 144 and one reserved hole, wherein the reserved hole is located directly below the beam assembly 120 , and the two wire hanging holes 144 are symmetrically arranged on both sides of the reserved hole.
  • a plurality of beam sections 121 can also be spliced and combined with the hoop 122.
  • the beam assembly 120 includes a long beam section 121 and a short beam section 121, and the long beam section 121 and the short beam section 121.
  • the flanges are spliced together, and the flange is provided with a second hanging plate 142, and the long beam section 121 is covered with a hoop 122.
  • the specific implementation is selected according to the actual situation, and is not limited here.
  • the beam assembly 220 of the substation frame 200 includes a middle section 221 and side phase sections 222 disposed at both ends of the middle section 221, and the side phase sections 222 are composite insulating materials.
  • the middle section 221 is made of metal material.
  • the side-phase section 222 is a composite insulating material, which has excellent electrical insulating properties, and can be directly connected to wires, thereby reducing structures such as overhang insulators to a certain extent. It can also eliminate the problem of wind bias discharge that may exist in the side-phase conductors.
  • the edge phase section 222 made of composite insulating material is light in weight, not easy to rust and crack, has high transportation and installation efficiency, and can achieve maintenance-free throughout the life cycle, reducing the operation and maintenance costs of the original porcelain insulator strings.
  • the middle section 221 is made of metal material, which can reduce the material cost.
  • the structure and material of the side-phase segment 222 are similar to those of the aforementioned beam assembly 120 using composite insulating materials, and will not be repeated here.
  • the edge-phase section 222 of the composite insulating material is light in weight, not easy to rust and crack, has high transportation and installation efficiency, can realize maintenance-free throughout the life cycle, and reduce the operation and maintenance cost of the original porcelain insulator string.
  • the middle section 221 is made of metal material, which can reduce the material cost.
  • the middle section 221 is still made of metal material, the middle section 221 still needs to be connected to the wire through the suspension insulator.
  • the middle section 221 may include at least two metal pipe parts 2211 , and two adjacent metal pipe parts 2211 are connected by flanges. Specifically, the middle section 221 may include two, three or more metal pipe pieces 2211 . In addition, in other embodiments, the middle section 221 may also include only one metal pipe.
  • the middle section 221 may also be a metal lattice column.
  • the middle section 221 may also be other structures made of other metal materials, which is not limited here.
  • the side phase segment 222 may be a beam segment, or as shown in FIG. 4 , the side phase segment 222 includes at least two beam segments 121 spliced together, and the adjacent ends of the two beam segments 121 are respectively A third flange 124 is provided, the two third flanges 124 are connected by fasteners, and a second hanging plate 142 can be sandwiched between the two third flanges 124 .
  • the second hanging plate 142 is provided with two hanging holes 144 and one reserved hole, wherein the reserved hole is located directly below the beam assembly 120, and the two hanging holes 144 are symmetrically arranged on both sides of the reserved hole for hanging Connect wire 200. That is, a hooking point is formed at the second hooking plate 142 .
  • the side-phase segment 222 when the side-phase segment 222 is relatively long, the side-phase segment 222 may be provided with a hanging point. At this time, the side-phase segment 222 may be a long-strip composite post insulator, wherein the long-strip composite post insulator is the same as the above, No longer.
  • the side phase section 222 also includes a plurality of hoops 122 and a third hanging plate 143, a plurality of hoops 122 are sleeved on the edge phase section 222 at intervals, and the third hanging plate 143 is arranged on the hoops On the outer wall of 122, the third hanging plate 143 has a number of hanging holes 144, and the hanging holes 144 are used for hanging wires.
  • a hooking point is formed at the third hooking plate 143 .
  • the hoop 122 can be glued and fixed on the edge phase segment 222, and the specific glued structure and method are the same as the above, and will not be repeated here.
  • the edge phase segment 222 can also be formed by using a plurality of beam segments 121 to be spliced and combined with the hoop 122 .
  • the wire hanging holes 144 of the above-mentioned wire hanging plates are used to connect with the wire hanging fittings 210 , and the wires are connected to the wire hanging fittings 210 so that the wire hanging holes 144 can be hung with wires.
  • the wire hanging hole 144 on the wire hanging plate for hanging the wire hanging fitting 210 is circular, but considering that the wire hanging fitting 210 may rotate at a certain angle under the action of external force, when the wire hanging fitting 210 rotates , the direction of the force between the wire hanging fittings 210 and each wire hanging plate cannot intersect with the center line of each wire hanging plate, that is, a torsion force is generated on each wire hanging plate, which will lead to loose connection or even reduce the support life.
  • the direction of the force between the wire hanging fitting 210 and each wire hanging plate still intersects with the center line of each wire hanging plate
  • at least one wire hanging hole on each wire hanging plate is used.
  • 144 is set as a waist-shaped hole or an arc-shaped hole. After the wire hanging fitting 210 rotates, it automatically moves in the wire hanging hole 144, so that the direction of the force of the wire hanging fitting 210 on each wire hanging plate is kept in line with the center of each wire hanging plate.
  • the lines intersect, so as to keep the connection of each hanging plate stable, enhance the stability of the substation structure 100, and prolong its service life.
  • the center line of each hanging plate is coincident with the center line of the beam assembly 120, so the hanging hole 144 is set as a waist-shaped hole or an arc hole, which ensures that the hanging wire fittings 210 are paired with each other.
  • the direction of the force of the beam assembly 120 remains to intersect the centerline of the beam assembly 120 .
  • the substation structure 100 further includes a shielding shell 131 , and the shielding shell 131 is covered outside the flange assembly 130 to prevent abnormal discharge from occurring.
  • a pressure equalizing ring 160 is also provided on the beam assembly 120 on the side of the first hanging plate 141 away from the flange assembly 130 , and the pressure equalizing ring 160 can evenly distribute the high pressure around, It is ensured that there is no potential difference between the various parts of the ring, so as to achieve the effect of voltage equalization and prevent abnormal discharge from occurring.
  • At least one side of the second hanging plate 142 is also provided with a voltage equalizing ring 160 , so as to equalize the electric field and prevent discharge from occurring.
  • pressure equalizing rings 160 are provided on both sides of the second hanging plate 142, respectively.
  • the third hanging plate 143 is also provided with equalizing rings (not shown in the figure), so as to equalize the electric field and prevent the occurrence of discharge.
  • pressure equalizing rings are respectively provided on both sides of the third hanging plate 143 .
  • each support assembly 110 includes two main support columns 113 , and each main support column 113 includes a first support portion 111 and a second support portion 112 .
  • the support portion 111 is a composite insulating material.
  • the two main support columns 113 are respectively connected to the flange assembly 130 , the planes where the axes of the two main support columns 113 lie are perpendicular to the first direction, and an included angle of 5°-70° is formed between the two main support columns 113 .
  • At least one of the support assemblies 110 further includes an oblique support column 114 , and the oblique support column 114 is connected to the flange assembly 130 and includes a first The support part 111 and the second support part 112, and the first support part 111 are composite insulating materials.
  • the oblique support columns 114 are located outside the plane of the two main support columns 113 to limit the deflection of the substation frame 100 along the first direction. It should be noted that the oblique support column 114 is disposed on the side away from the beam assembly 120 .
  • the substation frame 100 needs to be grounded, especially the row substation frame 100.
  • the beam assembly 120 is made of composite insulating material and can be directly connected to the wire, since the ground wire must maintain a sufficient electrical safety distance from the wire, and lightning protection must be taken into account. The problem, how to hang the ground wire is particularly important.
  • the substation structure 100 further includes a wiring post 150 , the wiring post 150 is arranged opposite to the support component 110 , the wiring post 150 is made of composite insulating material, and the wiring post 150 includes a wiring post 150 disposed on the support component 110 .
  • the second ends 152 are electrically connected.
  • the entire grounding of the substation structure 100 can be achieved by simply connecting the grounding down-conductor 153 to the ground point along one of the wiring posts 150 , and the installation process is convenient.
  • the grounding down-conductors 153 may also be connected to the grounding points along a plurality or all of the wiring posts 150 , which is not limited here.
  • the electrical connection between the second ends 152 of the wiring posts 150 may be specifically implemented by connecting wires between the second ends 152 of the wiring posts 150 .
  • the direction of the wiring column 150 and the axis of the support assembly 110 are on the same line, that is, the wiring column 150 is vertically arranged on the beam assembly 120, and the axis direction of the wiring column 150 and its gravity direction Consistently, the wiring post 150 can be stably disposed on the support assembly 110 , specifically, the wiring post 150 is disposed on the flange assembly 130 between the support assembly 110 and the beam assembly 120 .
  • the first end 151 of the wiring post 150 and the top end of the flange assembly 130 may be connected by a flange, or fixed by welding, or a combination of the above connection methods, which is not limited herein.
  • the grounding down-conductor 153 can be arranged to fit the wiring post 150 .
  • the substation frame 100 when the substation frame 100 is a row substation frame 100, three or multiples of three hooking points for hooking wires, such as three or six, are arranged between two adjacent supporting components 110. Or nine, etc., for the connection of three-phase wires. Three adjacent hanging points are respectively connected with A, B, C three-phase conductors, and sufficient in-phase electrical safety distance must be ensured between A, B, and C three-phase. It should be noted that, in order to ensure the electrical safety distance between adjacent connection points, when the substation frame 100 is a row substation frame 100, the connection between the flange assembly 130 located in the middle position and the beam assemblies 120 on both sides Do not set the hanging point, or only set the hanging point on one side.
  • the interphase safe electrical distance of the wires to which the substation frame 100 is connected needs to be satisfied between the two closest wire hanging points on both sides of the support assembly 110 in the middle position.
  • the connecting end of the wiring post 150 and the supporting assembly 110 is provided with a post insulator (not shown in the figure) to form a supporting structure
  • the post insulator includes a proximal end provided on the supporting assembly 110 and a distal end opposite to the proximal end.
  • the distance between the distal end of the pillar insulator and the wire is greater than the first preset value
  • the grounding down-conductor 153 is hooked from the second end 152 of the wiring pillar 150 to the distal end of the pillar insulator and then grounded, so as to ensure that the grounding lead is down The safe electrical distance between wire 153 and the wire hooked at the hooking point.
  • the substation frame 100 further includes an auxiliary support member 170 .
  • the auxiliary support member 170 is disposed between two adjacent support assemblies 110 and is used to support the beam assembly 120 , thereby When the distance between the two support assemblies 110 is certain, the diameter of the beam assembly 120 provided with the auxiliary support 170 can be set below the first diameter, which is smaller than the diameter of the beam assembly 120 without the auxiliary support 170 , reducing the cost of the beam assembly 120 .
  • the overall comprehensive cost of the substation structure 100 is reduced, reflecting the advantages of composite insulating materials.
  • the auxiliary support 170 includes a first support 171 and a second support 172 , and the first support 171 is located between the beam assembly 120 and the second support 172 , the first support member 171 is a composite insulating material, and the second support member 172 is a metal material.
  • first support member 117, the beam assembly 120, and the first support portion 111 may also adopt a pillar insulator structure, and may also be other composite insulating materials, which will not be described in detail.
  • auxiliary support 170 there are three hanging points between the auxiliary support 170 and the supporting component 110 adjacent to the first side thereof for hanging wires, and the auxiliary support 170 is opposite to its second side. No wires are hung between the adjacent support assemblies 110, and the second side is opposite to the first side.
  • the first support portion 111 of the support assembly 110 connected with the beam assembly 120 has excellent electrical insulation properties, thereby reducing the electrical safety distance between the wire and the support assembly 110 , thereby effectively reducing the width of the substation structure 100 and the cost of land acquisition, and at the same time, the second support portion 112 is made of metal material, which can achieve the effect of reducing the cost.
  • the support assembly 110 of the above-mentioned composite structure is light in weight, and is not prone to rust and cracking, correspondingly solving the problem of transportation, installation and maintenance, and reducing transportation and installation costs.
  • the beam assembly 120 is made of composite insulating material, which has excellent mechanical properties and electrical insulation properties, and can be directly connected to wires without using overhang insulators.
  • the overall height of the substation frame 100 is reduced, and the material consumption of structures such as suspension insulators and the support assembly 110 is reduced; and, since the tensile insulator strings, suspension insulator strings and jumpers are eliminated, the possible wind deflection of the substation frame 100 is eliminated.
  • the problem of discharge; the substation frame 100 using composite insulating materials is light in weight, not easy to rust and crack, has low transportation and installation costs, high efficiency, and can achieve maintenance-free throughout the life cycle, reducing the operation and maintenance costs of the original porcelain insulator strings.

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Abstract

一种变电构架（100），包括：支撑组件（110），沿第一方向间隔设置有至少两个，至少一个支撑组件（110）包括相互连接的第一支撑部（111）和第二支撑部（112）；横梁组件（120），架设于相邻两个支撑组件（110）之间；其中，第一支撑部（111）位于横梁组件（120）和第二支撑部（112）之间，且第一支撑部（111）为复合绝缘材料，第二支撑部（112）为金属材料。由于与横梁组件（120）连接的第一支撑部（111）为复合绝缘材料，其具有优异的电气绝缘性能，从而可缩减导线与支撑组件之间的电气安全距离，进而有效减小变电构架宽度和征地费用，同时第二支撑部（112）采用金属材料，可达到降低成本的效果。除此之外，复合结构的支撑组件（110）质量轻、不易生锈和开裂，相应解决了运输安装维护困难的问题，降低了运输安装费用。

Description

一种变电构架 技术领域
本申请涉及变电设备技术领域，特别是涉及一种变电构架。
背景技术
变电构架作为变电站中的主要设备之一，用于悬挂、支撑导体以连接开关设备或其他电气设备等。
当前的变电构架多为传统的铁构架与耐张绝缘子串、悬垂绝缘子串和跳线的组合，存在质量重、易锈蚀或开裂等缺陷，对于变电站或换流站还存在构架占地面积大、运输安装困难等问题。因此，亟待一成熟的变电架构设计方案以解决上述问题。
发明内容
本申请提供一种变电构架，能够解决现有变电构架占地面积大、运输安装维护困难的问题。
为解决上述技术问题，本申请采用的一个技术方案是提供一种变电构架，包括：支撑组件，沿第一方向间隔设置有至少两个，至少一个支撑组件包括相互连接的第一支撑部和第二支撑部；横梁组件，架设于相邻两个支撑组件之间；其中，第一支撑部位于横梁组件和第二支撑部之间，且第一支撑部为复合绝缘材料，第二支撑部为金属材料。
根据本申请一实施方式，所有支撑组件均包括第一支撑部和第二支撑部。
根据本申请一实施方式，横梁组件为复合绝缘材料。
根据本申请一实施方式，支撑组件和横梁组件之间设有法兰组件，支撑组件的端部和横梁组件的端部分别与法兰组件连接，变电构架包括：第一挂线板，设置于横梁组件与法兰组件的连接处，第一挂线板开 设挂线孔，用于挂接导线。
根据本申请一实施方式，包括：屏蔽壳，罩设于法兰组件外部。
根据本申请一实施方式，横梁组件包括至少两个横梁段，相邻两个横梁段通过法兰连接，变电构架包括：第二挂线板，第二挂线板设置在相邻两个横梁段之间的法兰处，第二挂线板开设挂线孔，用于挂接导线。
根据本申请一实施方式，包括：若干抱箍，间隔设于横梁组件上；第三挂线板，设置于抱箍外壁，第三挂线板开设挂线孔，用于挂接导线。
根据本申请一实施方式，抱箍内壁开设有若干间隔设置的第一开槽和若干间隔设置的第二开槽，第一开槽环绕横梁组件外壁设置，第二开槽与第一开槽交错设置。
根据本申请一实施方式，挂线孔用于与挂线金具连接，至少一个挂线孔为腰形孔或弧形孔，用于使得挂线金具发生旋转之后，挂线金具对横梁组件的作用力的方向保持与横梁组件的中心线相交。
根据本申请一实施方式，包括：包括：布线柱，与支撑组件对应设置，布线柱为复合绝缘材料，布线柱包括设置于支撑组件的第一端和与第一端相对的第二端，第二端的高度高于横梁组件的高度，所有布线柱的第二端之间电连接，第二端用于挂接地线，接地引下线沿至少一个布线柱连接地线与接地点。
根据本申请一实施方式，横梁组件沿远离两侧支撑组件的方向逐渐向上抬升以形成拱形横梁组件。
根据本申请一实施方式，横梁组件包括中间段和设置于中间段两端的边相段，边相段为复合绝缘材料，中间段为金属材料。
根据本申请一实施方式，相邻两个支撑组件之间设置有三个或三的倍数个挂接导线的挂线点。
根据本申请一实施方式，变电构架包括辅助支撑件，设置于相邻两个支撑组件之间，且支撑横梁组件，辅助支撑件包括相互连接的第一支撑件和第二支撑件，第一支撑件位于横梁组件和第二支撑件之间，第一支撑件为复合绝缘材料。
本申请的有益效果是：区别于现有技术，将支撑组件中与横梁组件 连接的第一支撑部设置为复合绝缘材料，由于与横梁组件连接的第一支撑部为复合绝缘材料，其具有优异的电气绝缘性能，从而可缩减导线与支撑组件之间的电气安全距离，进而有效减小变电构架宽度和征地费用，同时第二支撑部采用金属材料，可达到降低成本的效果。除此之外，上述复合结构的支撑组件质量轻、不易生锈和开裂，相应解决了运输安装维护困难的问题，降低了运输安装费用。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1是本申请的变电构架的一实施例的整体结构示意图；
图2是本申请的变电构架的一实施例的俯视结构示意图；
图3是本申请的变电构架的一实施例的局部结构示意图，主要用于展示第一挂线板；
图4是本申请的变电构架的一实施例的局部结构示意图，主要用于展示第二挂线板；
图5是本申请的变电构架的又一实施例中的抱箍和第三挂线板的结构示意图；
图6是本申请的变电构架的一实施例的局部结构示意图，主要用于展示均压环；
图7是本申请的变电构架的另一实施例的整体结构示意图；
图8是本申请的变电构架的又一实施例的整体结构示意图；
图9是本申请的变电构架的又一实施例中的联排变电构架的整体结构示意图；
图10是本申请的变电构架的另一实施例中的联排变电构架的整体结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性的劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请一实施例提供了一种变电构架100，如图1和图2所示，包括支撑组件110和横梁组件120，支撑组件110沿第一方向间隔设置有至少两个，横梁组件120架设于相邻两个支撑组件110之间，支撑组件110对横梁组件120起到支撑作用。横梁组件120用于挂接导线。其中，至少一个支撑组件110包括相互连接的第一支撑部111和第二支撑部112，第一支撑部111位于横梁组件120和第二支撑部112之间，第一支撑部111为复合绝缘材料，第二支撑部112为金属材料。由于与横梁组件120连接的第一支撑部111为复合绝缘材料，具有优异的电气绝缘性能，从而可缩减导线与支撑组件110之间的电气安全距离，进而有效减小变电构架100宽度和征地费用，同时第二支撑部112采用金属材料，可达到降低成本的效果。除此之外，上述复合结构的支撑组件110质量轻、不易生锈和开裂，相应解决了运输安装维护困难的问题，降低了运输安装维护费用。
为了进一步减小变电构架100宽度，如图1所示，所有支撑组件110均包括第一支撑部111和第二支撑部112，第一支撑部111均采用复合绝缘材料，充分发挥其电气绝缘性能，最大程度缩减导线与支撑组件110之间的电气安全距离，从而减小变电架构宽度和征地费用。
由于传统变电构架100中，横梁组件120采用金属材料，需要采用耐张绝缘子串、悬垂绝缘子串或跳线的组合来挂接导线，变电构架100整体高度较高。在一实施例中，如图1所示，横梁组件120为复合绝缘材料，具有优异的电气绝缘性能，可直接挂接导线，无需采用悬垂绝缘子等结构，由于导线的对地高度一定，在取消悬垂绝缘子等挂接导线后，可整体降低变电构架100的高度，减少悬垂绝缘子等结构和支撑组件110 的材料用量；并且，由于节省了耐张绝缘子串、悬垂绝缘子串和跳线，还能消除变电构架100可能存在的风偏放电的问题；采用复合绝缘材料的变电构架100质量轻、不易生锈和开裂，运输安装效率高，并能够实现全生命周期免维护，减少原有瓷绝缘子串的运维费用。在一实施例中，如图1所示，支撑组件110沿第一方向间隔设置有两个，此时，变电构架100为单跨变电构架100。
在又一实施例中，如图9所示，支撑组件110沿第一方向间隔设置有至少三个，例如三个、四个或者更多个，此时变电构架100为联排变电构架100。
需要说明的是，横梁组件120和第一支撑部111可采用支柱绝缘子结构，支柱绝缘子包括位于内部的绝缘体和包覆于绝缘体外的橡胶伞裙。具体地，绝缘体可以是绝缘管或者绝缘芯棒。绝缘管可以是采用玻璃纤维或芳纶纤维浸渍环氧树脂通过缠绕固化成型的玻璃钢管或者通过拉挤成型的空心拉挤管；绝缘芯棒可以是采用玻璃纤维或者芳纶纤维浸渍环氧树脂通过缠绕固化成型的实心芯棒或者通过拉挤成型的拉挤芯棒；橡胶伞裙可以采用高温硫化硅橡胶制成，也可以采用其他形式的橡胶材料制成；绝缘体两端分别设有法兰，横梁组件120两端的法兰分别与变电构架100两端的两个法兰组件130(如下文中所述)固定连接，第一支撑部111两端的法兰分别与法兰组件130和第二支撑部112固定连接，可以通过其他连接件连接，也可以通过焊接固定，或者以上连接方式的组合。在其他实施例中，横梁组件120和第一支撑部111还可以是其他的复合绝缘材料，此处不作限定。
在一实施例中，如图1所示，横梁组件120沿远离两侧支撑组件110的方向逐渐向上抬升以形成拱形横梁组件120，使得变电构架100能够利用自身拱形结构抵消垂向弧垂，减少安全隐患。如图1和图3所示，支撑组件110和横梁组件120之间设有法兰组件130，支撑组件110的端部和横梁组件120的端部分别与法兰组件130连接。法兰组件130包括筒体133，筒体133的轴线向上倾斜并与水平面呈锐角，从而保证了筒体133在安装后可以有向上预拱的趋势，当法兰组件130与横梁组件 120相连时，可以产生联动的预拱角度，从而横梁组件120可沿远离两侧支撑组件110的方向逐渐向上抬升以形成拱形横梁组件120。
如图1和图3所示，变电构架100还包括第一挂线板141，第一挂线板141设置于横梁组件120和法兰组件130的连接处，第一挂线板141开设若干挂线孔144，挂线孔144用于挂接导线。也即第一挂线板141处形成挂线点。
具体地，如图1和图3所示，法兰组件130的端部设有第一法兰132，横梁组件120的端部设有第二法兰123，第一法兰132和第二法兰123通过第一紧固件(图中未示出)连接，第一挂线板141夹设于第一法兰132和第二法兰123之间。第一挂线板141上开设有两个挂线孔144和一个预留孔(图中未示出)，其中预留孔位于横梁组件120的正下方，两个挂线孔144对称设置在预留孔两侧。
在一实施例中，如图1和图4所示，横梁组件120包括至少两个横梁段121，例如两个、三个或者更多个，相邻两个横梁段121通过法兰连接，变电构架100包括第二挂线板142，第二挂线板142设置在相邻两个横梁段121之间的法兰处，第二挂线板142开设若干挂线孔144，挂线孔144用于挂接导线200。也即第二挂线板142形成挂线点。
具体地，如图1和图4所示，横梁组件120包括两个横梁段121，两个横梁段121的相近端分别连接一第三法兰124，第二挂线板142夹设于两个第三法兰124之间。第二挂线板142上开设有两个挂线孔144和一个预留孔，其中预留孔位于横梁组件120的正下方，两个挂线孔144对称设置在预留孔两侧。图1中，变电构架100为单跨变电构架100。单跨变电构架100沿第一方向间隔设置两个支撑组件110，横梁组件120的两端分别通过法兰组件130连接在两个支撑组件110的顶端。单跨变电构架100两端设置的两个第一挂线板141、横梁组件120中部设置的一个第二挂线板142，形成三个挂线点，分别挂接A，B，C三相导线。
在又一实施例中，横梁组件120可不分段设置，即整个横梁组件120为一长条型复合支柱绝缘子，长条型复合支柱绝缘子包括位于内部的绝缘体和包覆于绝缘体外的橡胶伞裙，绝缘体和橡胶伞裙与前述一致，不 再赘述。其中，如图5所示，变电构架100包括若干抱箍122和第三挂线板143，若干抱箍122间隔套设于横梁组件120上，第三挂线板143设置于抱箍122外壁，第三挂线板143开设若干挂线孔144，挂线孔144用于挂接导线。也即第三挂线板143处形成挂线点。其中，抱箍122可胶装固定于横梁组件120上，具体地，抱箍122先胶装固定于绝缘体上，然后再整体进行橡胶伞裙包覆，且橡胶伞裙包覆在抱箍122的两端，使抱箍122与橡胶伞裙密封连接。抱箍122内壁开设有若干间隔设置的第一开槽1221和若干间隔设置的第二开槽1222，第一开槽1221环绕横梁组件120外壁设置，第二开槽1222与第一开槽1221交错设置，从而第一开槽1221和第二开槽1222共同作用可限制抱箍122在横梁组件120的轴向的滑动和径向的转动，保持抱箍122和横梁组件120的连接稳定；同时第一开槽1221和第二开槽1222交错设置，在填充胶装材料时，胶装材料可在第一开槽1221和第二开槽1222内充分流动均匀，利于抱箍122与绝缘体之间的胶装，提升胶接强度。
具体地，如图5所示，第三挂线板143与抱箍122一体成型，抱箍122内壁的第一开槽1221和第二开槽1222垂直设置，第三挂线板143上开设有两个挂线孔144和一个预留孔，其中预留孔位于横梁组件120的正下方，两个挂线孔144对称设置在预留孔两侧。
当然在其他实施中，还可以采用多个横梁段121拼接与抱箍122结合的方式，例如，横梁组件120包括一长横梁段121和一短横梁段121，长横梁段121与短横梁段121通过法兰拼接，且法兰处设置第二挂线板142，长横梁段121上套设抱箍122，具体实施方式按照实际情况选择，此处不作限制。
在另一实施例中，如图7和图8所示，变电构架200的横梁组件220包括中间段221和设置于中间段221两端的边相段222，边相段222为复合绝缘材料，中间段221为金属材料。边相段222为复合绝缘材料，具有优异的电气绝缘性能，可直接挂接导线，从而在一定程度上减少悬垂绝缘子等结构，并且，由于节省了耐张绝缘子串、悬垂绝缘子串和跳线，还能消除边相导线可能存在的风偏放电的问题。采用复合绝缘材料 的边相段222质量轻、不易生锈和开裂，运输安装效率高，并能够实现全生命周期免维护，减少原有瓷绝缘子串的运维费用。并且，中间段221采用金属材料，可降低材料成本。
其中，边相段222的结构、材质均与前述采用复合绝缘材料的横梁组件120类似，不再赘述。采用此结构的横梁组件220，一方面复合绝缘材料的边相段222质量轻、不易生锈和开裂，运输安装效率高，能够实现全生命周期免维护，减少原有瓷绝缘子串的运维费用；另一方面，中间段221采用金属材料，可降低材料成本。
需要说明的是，由于中间段221仍为金属材料，中间段221仍需要通过悬垂绝缘子挂接导线。
在一实施例中，如图7所示，中间段221可以包括至少两个金属管件2211，相邻两个金属管件2211通过法兰连接。具体地，中间段221可以包括两个、三个或者更多个金属管件2211。此外，在其他实施例中，中间段221也可以仅包括一个金属管件。
在又一实施例中，如图8所示，中间段221还可以为金属格构柱。当然，中间段221在其他实施例中，还可以是其他金属材料制成的其他结构，此处不作限制。
同样地，如图7所示，边相段222可以为一个横梁段，或者如图4所示，边相段222包括至少两个横梁段121拼接而成，两个横梁段121的相近端分别设有一第三法兰124，两个第三法兰124通过紧固件连接，两个第三法兰124之间还可以夹设一第二挂线板142。第二挂线板142上开设有两个挂线孔144和一个预留孔，其中预留孔位于横梁组件120的正下方，两个挂线孔144对称设置在预留孔两侧用于挂接导线200。也即第二挂线板142处形成挂线点。
或者，当边相段222较长时，边相段222上可以设置挂线点，此时边相段222可以为一长条型复合支柱绝缘子，其中，长条型复合支柱绝缘子与前述一致，不再赘述。以及，如图5所示，边相段222也包括若干抱箍122和第三挂线板143，若干抱箍122间隔套设于边相段222上，第三挂线板143设置于抱箍122外壁，第三挂线板143开设若干挂线孔 144，挂线孔144用于挂接导线。也即第三挂线板143处形成挂线点。其中，抱箍122可胶装固定于边相段222上，具体胶装结构和方式与前述一致，也不再赘述。当然在其他实施中，边相段222还可以通过采用多个横梁段121拼接与抱箍122结合的方式形成。
继续参阅图4，上述各挂线板的挂线孔144用于与挂线金具210连接，导线连接在挂线金具210上从而实现挂线孔144挂接导线。通常的挂线板上用于挂接挂线金具210的挂线孔144为圆形，但是考虑到挂线金具210在外力的作用下可能会有一定角度的旋转，当挂线金具210旋转之后，挂线金具210与各挂线板之间的力的方向不能与各挂线板的中心线相交，即在各挂线板上产生了一个扭力，这个力会导致连接松动甚至降低支撑寿命。为了使得挂线金具210旋转之后，挂线金具210与各挂线板之间的力的方向依旧与各挂线板的中心线相交，本申请中将各挂线板上的至少一个挂线孔144设置为腰形孔或弧形孔，挂线金具210发生旋转之后自动在挂线孔144内移动，使得挂线金具210对各挂线板的作用力的方向保持与各挂线板的中心线相交，从而保持各挂线板的连接稳定，增强变电构架100的稳定性，延长其使用寿命。为保证变电构架100的力学稳定性，各挂线板的中心线与横梁组件120的中心线重合，因而挂线孔144设置为腰形孔或弧形孔也就保证了挂线金具210对横梁组件120的作用力的方向保持与横梁组件120的中心线相交。
支撑组件110和横梁组件120之间设置的法兰组件130由于存在较多不规则轮廓，且与第一挂线板141距离较近，在强电场附近易导致发生异常放电现象。如图1所示，变电构架100还包括屏蔽壳131，屏蔽壳131罩设于法兰组件130外部，以防止发生异常放电。
除此之外，如图6所示，第一挂线板141远离法兰组件130的一侧在横梁组件120上还设置有均压环160，均压环160可将高压均匀分布在周围，保证在环形各部位之间没有电位差，从而达到均压的效果，防止发生异常放电。
进一步地，如图6所示，第二挂线板142的至少一侧也分别设置有均压环160，以均匀电场，防止发生放电。优选地，第二挂线板142的 两侧均分别设置有均压环160。
同样的，第三挂线板143的至少一侧也分别设置均压环(图中未示出)，以均匀电场，防止发生放电。优选地，第三挂线板143的两侧均分别设置有均压环。
在一实施例中，如图1和图2所示，每个支撑组件110包括两个主支撑柱113，每个主支撑柱113均包括第一支撑部111和第二支撑部112，第一支撑部111为复合绝缘材料。两个主支撑柱113分别与法兰组件130连接，两个主支撑柱113轴线所在平面垂直于第一方向，且两个主支撑柱113之间形成5°-70°的夹角。
进一步地，如图2所示，位于两侧的两个支撑组件110中，至少其中一个支撑组件110还包括斜向支撑柱114，斜向支撑柱114与法兰组件130连接，且包括第一支撑部111和第二支撑部112，第一支撑部111为复合绝缘材料。斜向支撑柱114位于两个主支撑柱113所在平面之外，以限制变电构架100沿第一方向的偏移。需要说明的是，斜向支撑柱114向远离横梁组件120的一侧设置。
变电构架100需要接地，尤其是联排变电构架100，当横梁组件120为复合绝缘材料可直接挂接导线时，由于地线要与导线之间保持足够的电气安全距离，并且要兼顾避雷问题，如何挂接地线尤为重要。如图9所示，在一实施例中，变电构架100还包括布线柱150，布线柱150与支撑组件110相对设置，布线柱150为复合绝缘材料，布线柱150包括设置于支撑组件110的第一端151和与第一端151相对的第二端152，第二端152的高度高于横梁组件120的高度，布线柱150的第二端152用于挂接地线；各布线柱150的第二端152之间电连接。通过设置布线柱150，并且由于布线柱150的第二端152高于横梁组件120的高度，从而布线柱150的第二端152高于横梁组件120上挂接的导线高度，既可以保证地线与导线之间的电气安全距离，还可起到避雷作用。由于布线柱150以及第一支撑部111均为绝缘材料，因此地线需要连接接地引下线153才能完成接地，由于布线柱150挂接接地引下线153的安装工艺相对较为复杂，因此将所有布线柱150的第二端152电连接后，仅需 将接地引下线153沿其中一个布线柱150连接至接地点即可实现变电构架100的整体接地，安装工艺便捷。当然，在其他实施例中，还可以将接地引下线153沿多个或者所有布线柱150连接至接地点，此处不作限制。在一实施例中，各布线柱150的第二端152之间电连接具体可以采用在各布线柱150的第二端152之间连接导线实现。
为了保证布线柱150与横梁组件120的连接稳定，布线柱150的方向与支撑组件110的轴线位于同一直线，即布线柱150竖直设置于横梁组件120上，布线柱150的轴线方向与其重力方向一致，布线柱150可稳定设置于支撑组件110，具体地，布线柱150设置于支撑组件110和横梁组件120之间的法兰组件130上。布线柱150的第一端151与法兰组件130的顶端可以通过法兰连接，也可以通过焊接固定，或者以上连接方式的组合，在此不做限制。
当布线柱第一端151与横梁组件120上挂接导线的挂线点之间的电气安全距离足够时，接地引下线153可贴合布线柱150设置。
在一实施例中，变电构架100为联排变电构架100时，相邻两个支撑组件110之间设置有三个或三的倍数个挂接导线的挂线点，例如三个、六个或者九个等，以适用三相导线的挂接。三个相邻的挂线点分别挂接A，B，C三相导线，A，B，C三相之间需要保证足够的相内电气安全距离。需要说明的是，为了保证相邻接线点之间的电气安全距离，当变电构架100为联排变电构架100时，位于中间位置的法兰组件130与两侧的横梁组件120的连接处不设置挂线点，或者仅一侧设置挂线点。
除此之外，位于中间位置的支撑组件110两侧最近的两个挂线点之间需满足变电构架100所挂接导线的相间安全电气距离。
需要说明的是，当距离支撑组件110最近的挂线点挂接的导线与支撑组件110之间的距离，不满足接地引下线153与导线之间的安全电气距离时，还需另外设置支撑结构以保证接地引下线153与挂线点挂接的导线之间的安全电气距离，接地引下线153与导线之间的距离需大于第一预值。
具体地，布线柱150与支撑组件110的连接端设置有支柱绝缘子(图 中未示出)形成支撑结构，支柱绝缘子包括设置于支撑组件110的近侧端和与近侧端相对的远侧端，支柱绝缘子的远侧端与导线的距离大于第一预值，接地引下线153由布线柱150的第二端152挂接至支柱绝缘子的远侧端再引下接地，从而保证接地引下线153与挂线点挂接的导线之间的安全电气距离。
在又一实施例中，采用复合绝缘材料的横梁组件120径长越长，力学强度越高，其轴向长度可设置更长，以设置更多挂线点，同时随着径长增长，制造成本会急剧增加，材料成本也相应增高。如图10所示，为了降低横梁组件120的成本，变电构架100还包括辅助支撑件170，辅助支撑件170设置于相邻两个支撑组件110之间，且用于支撑横梁组件120，从而两个支撑组件110之间距离一定的情况下，设置了辅助支撑件170的横梁组件120的径长可设置在第一径长以下，小于没有设置辅助支撑件170时的横梁组件120的径长，降低了横梁组件120的成本。变电构架100整体上综合成本降低，体现出复合绝缘材料的优势。
为了维持变电构架100的整体性能，如图10所示，辅助支撑件170包括第一支撑件171和第二支撑件172，第一支撑件171位于横梁组件120和第二支撑件172之间，第一支撑件171为复合绝缘材料，第二支撑件172为金属材料。
需要说明的是，第一支撑件117与横梁组件120、第一支撑部111同样可采用支柱绝缘子结构，还可以是其他的复合绝缘材料，具体不再赘述。
在一实施例中，如图10所示，辅助支撑件170与其第一侧相邻的支撑组件110之间具有三个用于挂接导线的挂线点，辅助支撑件170与其第二侧相邻的支撑组件110之间不挂接导线，第二侧与第一侧相背。
综上所述，通过将支撑组件110中与横梁组件120连接的第一支撑部111设置为复合绝缘材料，其具有优异的电气绝缘性能，从而可缩减导线与支撑组件110之间的电气安全距离，进而有效减小变电构架100宽度和征地费用，同时第二支撑部112采用金属材料，可达到降低成本的效果。除此之外，上述复合结构的支撑组件110质量轻、不易生锈和 开裂，相应解决了运输安装维护的问题，降低了运输安装费用。
同时，横梁组件120采用复合绝缘材料，具有优异的力学性能和电气绝缘性能，可直接挂接导线，无需采用悬垂绝缘子等，由于导线的对地高度一定，在取消了悬垂绝缘子等结构后，可整体降低变电构架100的高度，减少悬垂绝缘子等结构和支撑组件110的材料用量；并且，由于取消了耐张绝缘子串、悬垂绝缘子串和跳线，消除了变电构架100可能存在的风偏放电的问题；采用复合绝缘材料的变电构架100质量轻、不易生锈和开裂，运输安装成本低、效率高，并能够实现全生命周期免维护，减少原有瓷绝缘子串的运维费用。
以上所述仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效原理变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (14)

  1. 一种变电构架，其特征在于，包括：
    支撑组件，沿第一方向间隔设置有至少两个，至少一个所述支撑组件包括相互连接的第一支撑部和第二支撑部；
    横梁组件，架设于相邻两个所述支撑组件之间；
    其中，所述第一支撑部位于所述横梁组件和所述第二支撑部之间，且所述第一支撑部为复合绝缘材料，所述第二支撑部为金属材料。
  2. 根据权利要求1所述的变电构架，其特征在于，所有所述支撑组件均包括所述第一支撑部和所述第二支撑部。
  3. 根据权利要求2所述的变电构架，其特征在于，所述横梁组件为复合绝缘材料。
  4. 根据权利要求3所述的变电构架，其特征在于，所述支撑组件和所述横梁组件之间设有法兰组件，所述支撑组件的端部和所述横梁组件的端部分别与所述法兰组件连接，所述变电构架包括：
    第一挂线板，设置于所述横梁组件与所述法兰组件的连接处，所述第一挂线板开设挂线孔，用于挂接导线。
  5. 根据权利要求4所述的变电构架，其特征在于，包括：
    屏蔽壳，罩设于所述法兰组件外部。
  6. 根据权利要求3所述的变电构架，其特征在于，所述横梁组件包括至少两个横梁段，相邻两个所述横梁段通过法兰连接，所述变电构架包括：
    第二挂线板，所述第二挂线板设置在相邻两个所述横梁段之间的所述法兰处，所述第二挂线板开设挂线孔，用于挂接导线。
  7. 根据权利要求3所述的变电构架，其特征在于，包括：
    若干抱箍，间隔设于所述横梁组件上；
    第三挂线板，设置于所述抱箍外壁，所述第三挂线板开设挂线孔，用于挂接导线。
  8. 根据权利要求7所述的变电构架，其特征在于，所述抱箍内壁 开设有若干间隔设置的第一开槽和若干间隔设置的第二开槽，所述第一开槽环绕所述横梁组件外壁设置，所述第二开槽与所述第一开槽交错设置。
  9. 根据权利要求4-8中任一项所述的变电构架，其特征在于，所述挂线孔用于与挂线金具连接，至少一个所述挂线孔为腰形孔或弧形孔，用于使得所述挂线金具发生旋转之后，所述挂线金具对所述横梁组件的作用力的方向保持与所述横梁组件的中心线相交。
  10. 根据权利要求3所述的变电构架，其特征在于，包括：
    布线柱，与所述支撑组件对应设置，所述布线柱为复合绝缘材料，所述布线柱包括设置于所述支撑组件的第一端和与所述第一端相对的第二端，所述第二端的高度高于所述横梁组件的高度，所有所述布线柱的所述第二端之间电连接，所述第二端用于挂接地线，接地引下线沿至少一个所述布线柱连接所述地线与接地点。
  11. 根据权利要求1所述的变电构架，其特征在于，所述横梁组件沿远离两侧所述支撑组件的方向逐渐向上抬升以形成拱形横梁组件。
  12. 根据权利要求1所述的变电构架，其特征在于，所述横梁组件包括中间段和设置于所述中间段两端的边相段，所述边相段为复合绝缘材料，所述中间段为金属材料。
  13. 根据权利要求1所述的变电构架，其特征在于，相邻两个所述支撑组件之间设置有三个或三的倍数个挂接导线的挂线点。
  14. 根据权利要求1所述的变电构架，其特征在于，所述变电构架包括辅助支撑件，设置于相邻两个所述支撑组件之间，且支撑所述横梁组件，所述辅助支撑件包括相互连接的第一支撑件和第二支撑件，所述第一支撑件位于所述横梁组件和所述第二支撑件之间，所述第一支撑件为复合绝缘材料。
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