CN114725878B - Lightning protection device for high-voltage overhead insulated line - Google Patents
Lightning protection device for high-voltage overhead insulated line Download PDFInfo
- Publication number
- CN114725878B CN114725878B CN202210513803.1A CN202210513803A CN114725878B CN 114725878 B CN114725878 B CN 114725878B CN 202210513803 A CN202210513803 A CN 202210513803A CN 114725878 B CN114725878 B CN 114725878B
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- lightning protection
- protection device
- support frames
- grounding
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- 230000000694 effects Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 238000005260 corrosion Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 abstract description 7
- 238000000429 assembly Methods 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 description 6
- 239000004020 conductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
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
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/40—Connection to earth
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
-
- 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
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/80—Discharge by conduction or dissipation, e.g. rods, arresters, spark gaps
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Elimination Of Static Electricity (AREA)
Abstract
The invention discloses a lightning protection device for a high-voltage overhead insulated line, which comprises a plurality of groups of support frames arranged between a plurality of groups of cables, wherein fixing rings are arranged on the end parts, corresponding to the plurality of groups of cables, of each group of support frames in a rotating manner, the other ends of the plurality of groups of fixing rings are fixed with the support frames through bolts, an installation cavity is arranged at the axis of the support frames, a grounding assembly is arranged in the inner cavity of the installation cavity, two adjacent groups of grounding assemblies are connected through a wire connector, and each group of support frames is provided with a lightning protection assembly electrically connected with the grounding assembly. According to the lightning protection device for the high-voltage overhead insulated line, disclosed by the invention, the grounding assembly, the lightning protection assembly and the positioning assembly are arranged on the support frame, static electricity can be introduced into the conductive slip ring through the lightning rod and is scattered into the ground through the grounding wire, so that the line between two adjacent groups of telegraph poles or telegraph towers can be prevented from being struck by lightning, the lightning protection effect is good, and the height of the lightning rod can be adjusted as required.
Description
Technical Field
The invention relates to the technical field of line lightning protection, in particular to a lightning protection device for a high-voltage overhead insulated line.
Background
At present, the 10kV line in China is mainly an overhead line. In particular in developed cities, the l0kV overhead line is changed from a bare conductor to an insulated conductor, and the overhead insulated conductor has the advantages of good insulation performance, reduced line inter-phase distance, corrosion resistance, simplified structure, deep load center, contribution to urban greening, line corridor reduction, maintenance period extension and the like. This results in a significant improvement in overhead line safety.
The existing lightning protection device which is generally grounded on a telegraph pole or a telegraph tower is mainly used for lightning protection of lines on or near the telegraph pole or the telegraph tower, the lightning protection effect cannot be achieved on the lines which are far away from the telegraph pole or the telegraph tower between two groups of telegraph poles or the telegraph towers, damage is caused in the lines which are far away from the telegraph pole or the telegraph tower between the two groups of telegraph poles or the telegraph towers frequently, electricity consumption is seriously influenced, and huge loss is caused, so that a lightning protection device for high-voltage overhead insulated lines is provided for solving the problem to solve the problem.
Disclosure of Invention
The invention mainly aims to provide a lightning protection device for a high-voltage overhead insulated line, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a high-voltage overhead insulated line lightning protection device, including installing a plurality of support frames and every group support frame between a plurality of groups of cables on with a plurality of groups of cable corresponding tip on all rotate and be equipped with solid fixed ring, the other end of a plurality of groups of solid fixed ring passes through the bolt and is fixed with the support frame, the axle center department of support frame is equipped with the installation cavity and installs the inner chamber in chamber and install grounding assembly and two adjacent sets of grounding assembly and pass through wire connector connection, all be provided with on every group support frame with grounding assembly electric connection's lightning protection subassembly and lightning protection subassembly pass through the locating component and support frame fixed connection of support frame inner chamber.
Preferably, the grounding assembly comprises two groups of bobbins which are rotatably arranged in the mounting cavity and are wound with grounding wires on the outer wall, worm wheel rings are fixedly sleeved at the lower end of the inner cavity of the supporting frame, the two groups of worm wheel rings are meshed with worms which are rotatably arranged on the supporting frame, conductive slip rings are mounted in the inner cavities of the two groups of bobbins, fixed ends of the two groups of conductive slip rings are electrically connected with one end of the corresponding grounding wire respectively, and movable ends of the two groups of conductive slip rings are connected through connecting wires.
Preferably, the lightning protection assembly comprises a lightning rod penetrating through the supporting frame, wherein the lower end of the lightning rod is electrically connected with the conducting wire, and the other end of the conducting wire is electrically connected with the connecting wire.
Preferably, the locating component comprises a limiting block fixed in the inner cavity of the supporting frame, one end of the limiting block is slidably arranged in a rectangular groove formed in the lightning rod, the inner cavity of the limiting block is fixedly provided with a locating spring, the other end of the locating spring is fixedly connected with a locating column, and the semicircular end part of the locating column is located in a semicircular locating groove formed in the inner wall of the rectangular groove.
Preferably, the inner cavity wall of the rectangular groove is vertically arranged in a straight shape, and a plurality of groups of semicircular positioning grooves are arranged at equal intervals.
Preferably, an anti-corrosion coating layer capable of preventing the support frame from being corroded and damaged is arranged on the outer surface of the support frame.
Preferably, the corrosion-resistant coating is a ZS-711 inorganic corrosion-resistant coating and the thickness of the ZS-711 inorganic corrosion-resistant coating is 120-150 μm.
Preferably, friction protrusions for improving the fixing effect between the support frame and the cable are densely distributed on the inner concave surface of the fixing ring and the end part of the support frame for accommodating the cable.
Preferably, the friction protrusion is provided in a truncated cone structure, the smaller diameter end surface of which is in contact with the outer surface of the cable.
Compared with the prior art, the invention has the following beneficial effects:
1. install grounding subassembly, lightning protection subassembly and locating component on the support frame, the accessible lightning rod is with static introduction conductive slip ring and scatter it into the earth through the earth connection, can avoid the circuit between two sets of adjacent telegraph poles or the wire tower to receive the thunderbolt, and its circuit has fine lightning protection effect, and the height-adjustable of lightning rod as required.
2. The friction protrusions for improving the fixing effect between the support frame and the cable are densely distributed on the inner concave surface of the fixing ring and the end part of the support frame for accommodating the cable, and the friction protrusions are arranged to be of a frustum-shaped structure, so that the fixing effect between the cable and the support frame can be improved.
3. The outer surface of the support frame 1 is provided with a ZS-711 inorganic anti-corrosion coating which has good acid and alkali resistance and can prolong the service life of the support frame.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a lightning protection device for a high-voltage overhead insulated line;
FIG. 2 is a schematic diagram of a supporting frame structure of a lightning protection device for a high-voltage overhead insulated line;
FIG. 3 is a schematic view of a grounding assembly of a lightning protection device for a high voltage overhead insulated line according to the present invention;
FIG. 4 is a schematic cross-sectional view of a bobbin of a high voltage overhead insulated wire lightning protection device according to the present invention;
FIG. 5 is a schematic diagram of a partial surface structure of a support frame of a lightning protection device for a high-voltage overhead insulated line.
In the figure: 1. a support frame; 2. a fixing ring; 3. a mounting cavity; 4. a grounding assembly; 41. a bobbin; 42. a worm; 43. a ground wire; 44. a connecting wire; 45. a conductive slip ring; 46. a worm gear ring; 5. a lightning protection component; 51. a lightning rod; 52. a conductive wire; 53. rectangular grooves; 54. a positioning groove; 6. a wire connector; 7. a positioning assembly; 71. a limiting block; 72. positioning columns; 73. and positioning a spring.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1-5, a lightning protection device for a high-voltage overhead insulation line comprises a plurality of groups of support frames 1 installed between a plurality of groups of cables, wherein fixing rings 2 are rotatably arranged on the end parts, corresponding to the plurality of groups of cables, of each group of support frames 1, the other ends of the plurality of groups of fixing rings 2 are fixed with the support frames 1 through bolts, an installation cavity 3 is arranged at the axis of the support frames 1, grounding assemblies 4 are installed in inner cavities of the installation cavity 3, two adjacent groups of grounding assemblies 4 are connected through wire connectors 6, lightning protection assemblies 5 electrically connected with the grounding assemblies 4 are arranged on each group of support frames 1, and the lightning protection assemblies 5 are fixedly connected with the support frames 1 through positioning assemblies 7 in the inner cavities of the support frames 1.
The grounding component 4 comprises two groups of bobbins 41 which are rotatably arranged in the mounting cavity 3 and the outer wall of which is wound with a grounding wire 43, worm gear rings 46 are fixedly sleeved at the lower end of the inner cavity of the supporting frame 1, the two groups of worm gear rings 46 are meshed with worms 42 which are rotatably arranged on the supporting frame 1, conductive slip rings 45 are arranged at the inner cavities of the two groups of bobbins 41, the fixed ends of the two groups of conductive slip rings 45 are respectively electrically connected with one end of the corresponding grounding wire 43, the movable ends of the two groups of conductive slip rings 45 are connected through a connecting wire 44, the lightning protection component 5 comprises a lightning rod 51 penetrating through the supporting frame 1, the lower end of the lightning rod 51 is electrically connected with a conductive wire 52, the other end of the conductive wire 52 is electrically connected with the connecting wire 44, the positioning component 7 comprises a limiting block 71 fixed in the inner cavity of the supporting frame 1, one end of the limiting block 71 is slidingly arranged in a rectangular groove 53 arranged on the lightning rod 51, the inner cavity of the limiting block 71 is fixedly provided with a positioning spring 73, the other end of the positioning spring 73 is fixedly connected with a positioning column 72, the semicircular end part of the positioning column 72 is positioned in a semicircular positioning groove 54 arranged on the inner wall of the rectangular groove 53, when the positioning is carried out, a plurality of groups of support frames 1 are arranged on cables between two groups of telegraph poles or telegraph towers, the distance between the two adjacent groups of support frames 1 can be adjusted according to the requirement, and the worm 42 is rotated to enable the two groups of bobbins 41 to simultaneously rotate and pay out wires outwards, so that two groups of grounding wires 44 are provided with enough length to be connected with the grounding wires 44 on the adjacent support frames 1 through a wire connector 6, the grounding wires 44 on the two groups of support frames 1 close to the telegraph poles or the telegraph towers can be connected with the grounding wires on the telegraph poles or the telegraph towers, after the lightning rod 51 is pulled to enable the two groups of the support frames to move upwards, the lightning rod 51 can be fixed at a certain height through the elastic action of the positioning spring 73, static electricity can be introduced into the conductive slip ring 25 through the lightning rod 51 and is scattered into the ground through the grounding wire 44, the line between two adjacent groups of telegraph poles or telegraph towers can be prevented from being struck by lightning, and the line has a good lightning protection effect.
The inner cavity wall of the rectangular groove 53 is vertically arranged in a straight shape, and a plurality of groups of semicircular positioning grooves 54 are arranged at equal intervals, so that the height of the lightning rod 51 can be adaptively adjusted.
The outer surface of the support frame 1 is provided with a layer of anti-corrosion coating which can prevent the support frame from being corroded and damaged, so that the service life of the support frame 1 can be prolonged.
The anticorrosive coating is ZS-711 inorganic anticorrosive coating, and the thickness of the ZS-711 inorganic anticorrosive coating is 120-150 mu m, and the coating has good acid and alkali resistance.
The inner concave surfaces of the fixing ring 2 and the end part of the support frame 1 for accommodating the cable are densely provided with friction protrusions for improving the fixing effect between the support frame 1 and the cable.
The friction bulge is arranged into a frustum-shaped structure, the end face with smaller diameter is contacted with the outer surface of the cable, and the structure has good fixing effect on the cable.
It should be noted that, the invention is a lightning protection device for high-voltage overhead insulated lines, when being installed, a plurality of groups of support frames 1 are installed on a cable between two groups of telegraph poles or wire towers, the distance between two adjacent groups of support frames 1 can be adjusted according to the needs, and a worm 42 is rotated to enable two groups of bobbins 41 to rotate outwards simultaneously, so that two grounding wires 44 of the two groups of support frames are connected with the grounding wires 44 on the adjacent support frames 1 through a wire connector 6, the grounding wires 44 on the two groups of support frames 1 close to the telegraph poles or the wire towers can be connected with the grounding wires on the telegraph poles or the wire towers, after the installation is completed, the lightning rod 51 can be pulled to enable the lightning rod 51 to move upwards, and the lightning rod 51 can be fixed at a certain height through the elastic action of a positioning spring 73, static electricity can be introduced into a conductive slip ring 25 and be scattered into the ground through the grounding wires 44, the lines between the two groups of the adjacent telegraph poles or the wire towers can be prevented from being struck by lightning, the lightning protection effect is achieved, a layer of corrosion protection coating is arranged on the outer surface of the support frames 1, the corrosion protection coating can be prevented from being damaged, the service life of the cable can be prolonged, the friction protection structure can be well provided between the support frames and the cable is provided with a concave surface-shaped structure for fixing the cable, and the cable is well, and the cable is provided with a friction structure, and a structure is used for fixing the cable structure.
Claims (8)
1. A lightning protection device for a high-voltage overhead insulated line is characterized in that: the lightning protection device comprises a plurality of groups of support frames (1) arranged between a plurality of groups of cables, wherein the end parts of each group of support frames (1) corresponding to the plurality of groups of cables are respectively provided with a fixed ring (2) in a rotating way, the other ends of the plurality of groups of fixed rings (2) are fixed with the support frames (1) through bolts, an installation cavity (3) is arranged at the axle center of the support frames (1), a grounding component (4) is arranged in an inner cavity of the installation cavity (3), two adjacent groups of grounding components (4) are connected through a wire connector (6), lightning protection components (5) electrically connected with the grounding components (4) are arranged on each group of support frames (1), and the lightning protection components (5) are fixedly connected with the support frames (1) through positioning components (7) in the inner cavities of the support frames (1);
the grounding assembly (4) comprises two groups of bobbins (41) which are rotatably arranged in the mounting cavity (3) and are wound with grounding wires (43) on the outer wall, worm wheel rings (46) are fixedly sleeved at the lower ends of the inner cavities of the supporting frame (1) respectively, the worm wheel rings (46) are meshed with worms (42) which are rotatably arranged on the supporting frame (1), conductive slip rings (45) are mounted in the inner cavities of the two groups of bobbins (41), fixed ends of the two groups of conductive slip rings (45) are electrically connected with one ends of the corresponding grounding wires (43) respectively, and movable ends of the two groups of conductive slip rings (45) are connected through connecting wires (44).
2. The high voltage overhead insulated line lightning protection device of claim 1, wherein: the lightning protection assembly (5) comprises a lightning rod (51) penetrating through the support frame (1), the lower end of the lightning rod (51) is electrically connected with the conductive wire (52), and the other end of the conductive wire (52) is electrically connected with the connecting wire (44).
3. The high voltage overhead insulated line lightning protection device of claim 2, wherein: the positioning assembly (7) comprises a limiting block (71) fixed in the inner cavity of the supporting frame (1), one end of the limiting block (71) is slidably arranged in a rectangular groove (53) formed in the lightning rod (51), the inner cavity of the limiting block (71) is fixedly provided with a positioning spring (73) and the other end of the positioning spring (73) is fixedly connected with a positioning column (72), and the semicircular end part of the positioning column (72) is located in a semicircular positioning groove (54) formed in the inner wall of the rectangular groove (53).
4. A high voltage overhead insulated line lightning protection device according to claim 3, wherein: the inner cavity wall of the rectangular groove (53) is vertically arranged in a straight line shape, and a plurality of groups of semicircular positioning grooves (54) are arranged at equal intervals.
5. A high voltage overhead insulated line lightning protection device according to any one of claims 1-4, wherein: the outer surface of the supporting frame (1) is provided with an anti-corrosion coating which can prevent the supporting frame from being corroded and damaged.
6. The high voltage overhead insulated line lightning protection device of claim 5, wherein: the anticorrosive coating is ZS-711 inorganic anticorrosive coating and the thickness of the ZS-711 inorganic anticorrosive coating is 120-150 μm.
7. The high voltage overhead insulated line lightning protection device of claim 1, wherein: the friction protrusions for improving the fixing effect between the support frame (1) and the cable are densely distributed on the inner concave surface of the end parts of the fixing ring (2) and the support frame (1) for accommodating the cable.
8. The high voltage overhead insulated line lightning protection device of claim 7, wherein: the friction protrusion is arranged into a frustum-shaped structure, and the end face with smaller diameter is contacted with the outer surface of the cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210513803.1A CN114725878B (en) | 2022-05-12 | 2022-05-12 | Lightning protection device for high-voltage overhead insulated line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210513803.1A CN114725878B (en) | 2022-05-12 | 2022-05-12 | Lightning protection device for high-voltage overhead insulated line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114725878A CN114725878A (en) | 2022-07-08 |
| CN114725878B true CN114725878B (en) | 2023-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210513803.1A Active CN114725878B (en) | 2022-05-12 | 2022-05-12 | Lightning protection device for high-voltage overhead insulated line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114725878B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004278118A (en) * | 2003-03-14 | 2004-10-07 | Sanki Eng Co Ltd | Lightning trouble arrester in building |
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| CN105896313A (en) * | 2014-11-05 | 2016-08-24 | 天津市吉涛防雷电器有限公司 | Slide-block movable-type lightning rod |
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| CN211789986U (en) * | 2020-04-30 | 2020-10-27 | 深圳联合创展投资发展有限公司 | Lightning protection device of communication base station |
| CN212784683U (en) * | 2020-09-08 | 2021-03-23 | 南京德立电力设计有限公司 | Lightning protection device for overhead transmission line |
| CN214279713U (en) * | 2021-02-23 | 2021-09-24 | 江苏天南铝材锻造有限公司 | High-voltage side lightning arrester for direct current circuit |
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2022
- 2022-05-12 CN CN202210513803.1A patent/CN114725878B/en active Active
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| CN114725878A (en) | 2022-07-08 |
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