CN203352101U - Anti-vibration system of overhead transmission lines - Google Patents
Anti-vibration system of overhead transmission lines Download PDFInfo
- Publication number
- CN203352101U CN203352101U CN 201320340813 CN201320340813U CN203352101U CN 203352101 U CN203352101 U CN 203352101U CN 201320340813 CN201320340813 CN 201320340813 CN 201320340813 U CN201320340813 U CN 201320340813U CN 203352101 U CN203352101 U CN 203352101U
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- Prior art keywords
- wire
- wire clamp
- composite insulator
- stockbridge damper
- overhead transmission
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- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 16
- 125000006850 spacer group Chemical group 0.000 claims abstract description 22
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 239000012212 insulator Substances 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims description 27
- 238000005336 cracking Methods 0.000 claims description 20
- 238000000926 separation method Methods 0.000 claims description 20
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 10
- 239000010931 gold Substances 0.000 claims description 10
- 229910052737 gold Inorganic materials 0.000 claims description 10
- 230000016507 interphase Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008846 dynamic interplay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Abstract
The utility model discloses an anti-vibration system of overhead transmission lines. The anti-vibration system comprises a composite insulator (4), the composite insulator (4) is connected with spacer bundles through ball-twist armor clamps (5) and adjusting plates (3), and rotary clamps of the spacer bundles are connected with leads (6). The anti-vibration system is characterized in that the leads (6) at two sides of one rotary clamp of each spacer bundle are both provided with at least one damper (7), the dampers (7) are distributed uniformly, and the distance between one damper (7) adjacent to one rotary clamp and the rotary clamp (1-2) is the same as the distance between two adjacent dampers (7). The anti-vibration system is simple in structure and practical, aeolian vibrations of the leads are prevented, wires are not easily to be disconnected, and anti-vibration effect is good.
Description
Technical field:
The utility model relates to a kind of anti-vibrating system of overhead transmission line, belongs to the design of electric power system overhead transmission line, operation, maintenance field.
Background technology:
The aeolian vibration of wire, claim again vortex-induced vibration, is modal high frequency micro breadth oscillation under wind action.When wind speed during at 17m/s, the alternation lift produced due to vortex-shedding can bring out wire and do frequency in 3～50Hz scope, and amplitude is no more than the dither of diameter of wire.Although the amplitude that aeolian vibration causes is less, in fact it is the major reason that causes the high strain of wire, high stress point (as the wire clamp of hanging conductor clamp, conductor strain clamp and inter-phase spacer two ends fixing cord) fatigue rupture.The anti-vibrating system such as a plurality of dampers (as damping wire) is installed in the transmission line system usually on wire and is suppressed aeolian vibration, but up to now only for the outside of hanging conductor clamp, conductor strain clamp.Open source literature is thought both at home and abroad, will aggravate aeolian vibration after single conductor installation interval rod, but never have good vibration protection; Bundle conductor, because wake flow between cylinder influences each other and wire-conductor spacer-stockbridge damper dynamic interaction, is compared with the aeolian vibration of single conductor, and its vibration mechanism and RESPONSE CALCULATION are more complex; Related documents thinks, the aeolian vibration of bundle conductor is a little a little less than than single conductor, but also there is no effective vibration protection.
In overhead transmission line, the wire clamp of inter-phase spacer two ends fixing cord is a moving strand, and in wire is waved process strongly, the wire monofilament of the wire clamp both sides of fixing cord is easily damaged, thereby reduces wire intensity; On December 5th, 2012, Hebei Power Network Korea Spro 220kV faces generation two places' broken strings in II line #34～#35 shelves, and main cause is that the inter-phase spacer of installing in 2010 is not considered the impact of aeolian vibration on wire.On February 5th, 2013, State Grid Corporation of China is requirement hereinafter, and new upper inter-phase spacer should install preformed armor rods additional and protect lines later, to reduce the impact of aeolian vibration on wire.
The utility model content:
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and provides a kind of simple and practical, prevents the wire aeolian vibration, the difficult broken string, the anti-vibrating system of the overhead transmission line that vibration-isolating effect is good.
The purpose of this utility model can reach by following measure: a kind of anti-vibrating system of overhead transmission line, it comprises composite insulator, composite insulator twists gold utensil, adjusts plate connection cracking separation rod by ball, the revolution wire clamp of cracking separation rod connects wire, it is characterized in that being equipped with at least one stockbridge damper on the wire of revolution wire clamp both sides of each cracking separation rod, stockbridge damper is uniformly distributed, and a stockbridge damper adjacent with the revolution wire clamp is identical with the distance between stockbridge damper with the distance of turning round between wire clamp.
In order further to realize the purpose of this utility model, described cracking separation rod is two cracking separation rods, the two ends of composite insulator are twisted gold utensil by ball respectively and are connected an adjustment plate, each adjustment plate all is connected with the moving strand of the connecting plate of two cracking separation rods by screw, bolt, and the revolution wire clamp of each two cracking separation rod all connects wire.
In order further to realize the purpose of this utility model, described cracking separation rod is the architomy conductor spacer, one end of composite insulator twists gold utensil by ball and connects an architomy conductor spacer, the other end of composite insulator connects an architomy conductor spacer by adjusting plate, and the revolution wire clamp of each architomy conductor spacer all connects wire.
In order further to realize the purpose of this utility model, be provided with preformed armor rods between described revolution wire clamp and wire and protect lines.
The utility model can produce following good effect compared with the prior art: the utility model is set up preformed armor rods and is protected lines between revolution wire clamp and wire, to reduce the impact of aeolian vibration on wire, and 1 pair or some pairs of preformed helical shockproof dampers are installed on the wire of inter-phase spacer both sides at a certain distance, prevent the wire aeolian vibration, the difficult broken string, guarantee overhead transmission line safe and reliable operation more.
The accompanying drawing explanation:
The structural representation that Fig. 1 is a kind of execution mode of the present utility model (double bundle conductor inter-phase spacer);
The structural representation that Fig. 2 is another kind of execution mode of the present utility model (architomy conductor interphase interval rod).
Embodiment: preferred forms of the present utility model is elaborated below in conjunction with accompanying drawing:
Embodiment 1: the anti-vibrating system (referring to Fig. 1) of a kind of overhead transmission line (double bundle conductor), it comprises composite insulator 4, two ball strand gold utensils 5, adjust plate 3 for two, two pairs of two cracking separation rods 1 and 4 wires 6, the two ends of composite insulator 4 are twisted gold utensil 5 by ball respectively and are connected an adjustment plate 3, each is adjusted plate 3 and all passes through screw, bolt is connected with the moving strand of the connecting plate 1-1 of two cracking separation rods 1, the revolution wire clamp 1-2 of each two cracking separation rod 1 all connects wire 6, be provided with preformed armor rods between revolution wire clamp 1-2 and wire 6 and protect lines 8, be equipped with at least one stockbridge damper 7 on the wire 6 of the revolution wire clamp 1-2 both sides of each two cracking separation rod 1, stockbridge damper 7 is uniformly distributed, a stockbridge damper 7 adjacent with revolution wire clamp 1-2 is identical with the distance between stockbridge damper 7 with the distance of turning round between wire clamp 1-2, stockbridge damper can adopt symmetric form tuning-fork type stockbridge damper as required, asymmetric tuning-fork type stockbridge damper, top-twisted wire-clip symmetric form tuning-fork type stockbridge damper, the asymmetric tuning-fork type stockbridge damper of top-twisted wire-clip, symmetric form torsional mode stockbridge damper, top-twisted wire-clip symmetric form torsional mode stockbridge damper etc.
Embodiment 2: the anti-vibrating system (referring to Fig. 2) of a kind of overhead transmission line (single conductor), it comprises composite insulator 4, ball strand gold utensil 5, adjust plate 3, two pairs of architomy conductor spacers 9 and 2 wires 6, one end of composite insulator 4 twists gold utensil 5 by ball and connects an architomy conductor spacer 9, the other end of composite insulator 4 connects an architomy conductor spacer 9 by adjusting plate 3, the revolution wire clamp of each architomy conductor spacer 9 all connects wire 6, be provided with preformed armor rods between revolution wire clamp and wire 6 and protect lines 8, be equipped with at least one stockbridge damper 7 on the wire 6 of the revolution wire clamp both sides of each architomy conductor spacer 9, stockbridge damper 7 is uniformly distributed, a stockbridge damper 7 adjacent with the revolution wire clamp is identical with the distance between stockbridge damper 7 with the distance of turning round between wire clamp, stockbridge damper can adopt symmetric form tuning-fork type stockbridge damper as required, asymmetric tuning-fork type stockbridge damper, top-twisted wire-clip symmetric form tuning-fork type stockbridge damper, the asymmetric tuning-fork type stockbridge damper of top-twisted wire-clip, symmetric form torsional mode stockbridge damper, top-twisted wire-clip symmetric form torsional mode stockbridge damper etc.
Claims (4)
1. the anti-vibrating system of an overhead transmission line, it comprises composite insulator (4), composite insulator (4) twists gold utensil (5), adjusts plate (3) connection cracking separation rod by ball, the revolution wire clamp of cracking separation rod connects wire (6), it is characterized in that being equipped with at least one stockbridge damper (7) on the wire (6) of revolution wire clamp both sides of each cracking separation rod, stockbridge damper (7) is uniformly distributed, and a stockbridge damper (7) adjacent with the revolution wire clamp is identical with the distance between stockbridge damper (7) with the distance between revolution wire clamp (1-2).
2. the anti-vibrating system of a kind of overhead transmission line according to claim 1, it is characterized in that described cracking separation rod is for two cracking separation rods (1), the two ends of composite insulator (4) are twisted gold utensil (5) by ball respectively and are connected an adjustment plate (3), each adjustment plate (3) all is connected with the moving strand of the connecting plate (1-1) of two cracking separation rods (1) by screw, bolt, and the revolution wire clamp (1-2) of each two cracking separation rod (1) all connects wire (6).
3. the anti-vibrating system of a kind of overhead transmission line according to claim 1, it is characterized in that described cracking separation rod is architomy conductor spacer (9), one end of composite insulator (4) twists gold utensil (5) by ball and connects an architomy conductor spacer (9), the other end of composite insulator (4) connects an architomy conductor spacer (9) by adjusting plate (3), and the revolution wire clamp of each architomy conductor spacer (9) all connects wire (6).
4. according to the anti-vibrating system of claim 1 or 2 or 3 described a kind of overhead transmission lines, it is characterized in that being provided with preformed armor rods between described revolution wire clamp and wire (6) protects lines (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320340813 CN203352101U (en) | 2013-06-14 | 2013-06-14 | Anti-vibration system of overhead transmission lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320340813 CN203352101U (en) | 2013-06-14 | 2013-06-14 | Anti-vibration system of overhead transmission lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203352101U true CN203352101U (en) | 2013-12-18 |
Family
ID=49751952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320340813 Expired - Fee Related CN203352101U (en) | 2013-06-14 | 2013-06-14 | Anti-vibration system of overhead transmission lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203352101U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259235A (en) * | 2013-06-14 | 2013-08-21 | 国家电网公司 | Anti-vibration system of overhead power transmission line |
| CN106410720A (en) * | 2016-10-26 | 2017-02-15 | 中国电力科学研究院 | Anti-galloping device for transmission line |
| CN106532612A (en) * | 2016-10-26 | 2017-03-22 | 中国电力科学研究院 | Anti-galloping device for power transmission line |
| CN106571609A (en) * | 2016-10-26 | 2017-04-19 | 中国电力科学研究院 | Anti-galloping device for power transmission line |
| CN106655050A (en) * | 2016-10-26 | 2017-05-10 | 中国电力科学研究院 | Swinging preventing device for power transmission line |
| CN106655049A (en) * | 2016-10-26 | 2017-05-10 | 中国电力科学研究院 | Anti-galloping device for power transmission line |
-
2013
- 2013-06-14 CN CN 201320340813 patent/CN203352101U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259235A (en) * | 2013-06-14 | 2013-08-21 | 国家电网公司 | Anti-vibration system of overhead power transmission line |
| CN106410720A (en) * | 2016-10-26 | 2017-02-15 | 中国电力科学研究院 | Anti-galloping device for transmission line |
| CN106532612A (en) * | 2016-10-26 | 2017-03-22 | 中国电力科学研究院 | Anti-galloping device for power transmission line |
| CN106571609A (en) * | 2016-10-26 | 2017-04-19 | 中国电力科学研究院 | Anti-galloping device for power transmission line |
| CN106655050A (en) * | 2016-10-26 | 2017-05-10 | 中国电力科学研究院 | Swinging preventing device for power transmission line |
| CN106655049A (en) * | 2016-10-26 | 2017-05-10 | 中国电力科学研究院 | Anti-galloping device for power transmission line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20160614 |