CN102751687B - Drainage armour clamp of high voltage alternative current circuit tension resisting tower - Google Patents
Drainage armour clamp of high voltage alternative current circuit tension resisting tower Download PDFInfo
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- CN102751687B CN102751687B CN201210242467.8A CN201210242467A CN102751687B CN 102751687 B CN102751687 B CN 102751687B CN 201210242467 A CN201210242467 A CN 201210242467A CN 102751687 B CN102751687 B CN 102751687B
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Abstract
The invention discloses a drainage armour clamp of a high voltage alternative current circuit tension resisting tower. The drainage armour clamp comprises a jumper wire string, wherein the jumper wire string is arranged between two tension resisting strings which are connected with two ends of a drainage wire; the upper end of the jumper wire string is hinged with the upper cross arm of the tension resisting tower; the lower end of the jumper wire string is connected with the drainage wire; a limiting device for limiting the maximum swinging angle of the jumper wire string is further arranged at the lower end of the jumper wire string; one end of the limiting device is hinged with a cross arm below the tension resisting tower; and the other end of the limiting device is hinged with the lower end of the jumper wire string. The drainage armour clamp ensures that the gale flashover is prevented under the condition that instantaneous gale which exceeds the engineering designed air velocity happens partially nearby the drainage wire by additionally arranging the limiting device for limiting the swinging angle of the jumper wire string at the lower end of the jumper wire string; and meanwhile the length of the cross arm is shortened, so that the engineering cost is saved.
Description
Technical field
The present invention relates to HVAC power transmission line steel tower drainage technology field, particularly a kind of high-voltage alternating line tension tower drainage gold utensil.
Background technology
Strain tower drainage be transmission line when change is moved towards, ensure live wire be connected means with a kind of wire insulated between steel tower.
The drainage method of current power transmission line tension tower mainly adopts straight jumping, installs the insulation jumping string of band counterweight and hard wire jumper three kinds of drainage technology schemes additional.
Straight jumping drainage way wherein is directly directly connected by drainage thread by strain tower both sides wire; Common strain tower adopts on drainage thread, installs forms such as jumping string and counterweight additional, increases drainage thread deadweight, reduces the maximum windage yaw of drainage thread; Hard wire jumper drainage way is fixed on angle steel or steel skeleton by drainage thread, reaches the method for restriction drainage thread windage yaw.
Realizing in process of the present invention, inventor finds that prior art exists following shortcoming:
Straight jumping drainage way is not wherein owing to limiting drainage portion, and the windage yaw angle of drainage thread depends on drainage thread self-characteristic completely.
Drainage thread installs additional and jumps string drainage way: owing to adding the jumping string of band counterweight, more directly jump drainage way, effectively reduce the windage yaw of drainage thread.Shortcoming is that to go here and there the counterweight that can increase limited because jumping, so, suitably can only reduce the windage yaw angle of drainage thread.
Hard wire jumper drainage way is on drainage thread, increase hard bridle wire apparatus, the deadweight of further increase drainage thread, better control the angle of wind deflection of drainage thread, but, expense increases more compared with first two mode, and when actual wind speed surpasses design condition, drainage thread still may cause line tripping to tower body electric discharge.
Designing wind speed due to transmission line within 30 years one, meets average maximum wind velocity in 10 minutes, it is a statistics, if adopted, said method is interior among a small circle there is instantaneous maximum wind, drainage thread is then still likely caused to discharge to tower body, transmission line is caused to trip, this is also need place main especially in above-mentioned drainage method, although the design of strain tower tower head meets the wind speed design condition of meeting for 30 years, is in operation and still strong wind flashover can occurs.
Summary of the invention
In order to realize locally occurring near drainage thread instantaneous maximum wind exceed engineering design wind speed, there is not strong wind flashover in that guarantees drainage thread, the invention provides a kind of high-voltage alternating line tension tower drainage gold utensil.
Described technical scheme is as follows:
A kind of high-voltage alternating line tension tower drainage gold utensil, comprise jumper string, described jumper string is arranged between two strain insulator-strings that are connected with drainage thread two ends, the upper end of described jumper string and the upper cross-arm of strain tower hinged, its lower end is connected with drainage thread, the lower end of described jumper string is also provided with the stopping means for limiting described jumper string full swing angle, and one end of described stopping means and the lower cross-arm of strain tower are hinged, and the lower end of its other end and described jumper string is hinged.
The full swing angle of described jumper string is 5 ° ~ 7 °.
Described stopping means comprises spacing jumper string and flexible pull wire, and the upper end of described spacing jumper string is connected with the lower end of described jumper string by a jockey, and its lower end is fixedly connected with described flexible pull wire, and described flexible pull wire is fixed on the lower cross-arm of strain tower.
Described jockey comprises: one connects main body;
Jumper string connector, be fixed on the upper end of described connection main body, it is connected with the lower end of described jumper string;
Spacing jumper string connector, is fixed on the lower end of described connection main body, and it is connected with the upper end of described spacing jumper string;
Drainage thread connector, be fixed on the lower end of described connection main body, it is connected with described drainage thread.
Described connection main body is vertically formed by fixedly connecting back-to-back by two angle steel, and described jumper string connector is U-shaped fixture, and it to be fixed connection by the bearing pin running through angle steel upper end described in two; Described spacing jumper string connector is U-bolt, and two bolts of described U-bolt are individually fixed in the lower end of angle steel described in two; Described drainage thread connector comprises the soft bus conductor spacer for connecting two drainage wires, and described soft bus conductor spacer is fixed in the below of two angle steel by bolt.
Described connection main body comprises: master link and jumper wire spacing rod, and described jumper wire spacing rod is arranged along the outer surface of described master link in even;
Described drainage thread connector is formed by connecting along the axis of described master link and multiple described jumper wire spacing rod by connecting wire, and described drainage thread connector arranges four or six altogether, and insulated from each other between described drainage thread connector;
Described jumper string connector comprises the first anchor ear link plate, and described first anchor ear link plate is fixed on described master link, and the lower end of described jumper string and the upper end of described first anchor ear link plate are bolted;
Described spacing jumper string connector comprises the second anchor ear link plate, and described second anchor ear link plate is fixed on described master link, and the upper end of described spacing jumper string and the lower end of described second anchor ear link plate are bolted.
The beneficial effect that technical scheme provided by the present invention is brought is:
1) the present invention by arranging a stopping means on the below cross-arm of strain tower, the middle part of drainage thread is connected between stopping means and jumper string, by the full swing angle of stopping means restriction drainage thread, strain tower tower head is not only made to meet insulation distance requirement in code, and ensure that occur instantaneous maximum wind time strain tower tower head insulation, stopped wind dodge generation.
2) adopt jumper string and the drainage thread of stopping means to strain tower to be fixed, reduce the windage yaw of drainage thread, the cross-arm length of strain tower can be shortened.It is stressed that shortening cross-arm length also reduces strain tower tower body simultaneously, thus reach the object alleviating tower weight reduction project cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 used in the prior artly installs the structure diagram that jumper string carries out drainage additional;
Fig. 2 is drainage hardware fitting structure figure provided by the present invention;
Fig. 3 is two connecting structure for bundled conductors schematic diagrames in Fig. 2;
Fig. 4 is the two bundle conductors spacing jumper string connector syndeton schematic diagram in Fig. 2;
Fig. 5 is that drainage thread fixed forms are divided in the illustrated quadripartion, six provided;
Fig. 6 is the second anchor ear link plate and the jumper string scheme of installation of Fig. 5;
Fig. 7 is the connection main body section schematic diagram of quadripartion drainage thread;
Fig. 8 is the connection main body section schematic diagram of six division drainage threads.
In figure:
1-strain tower; The upper cross-arm of 2-; Cross-arm under 3-; 4-strain insulator-string; 5-jumper string; 6-drainage thread; 7-stopping means; The spacing jumper string of 71-; 72 flexible pull wire; 8-jockey, 81-angle steel, 82-U type fixture, 83-bearing pin, 84-U type bolt, the soft bus conductor spacer of 85-, 86-bolt, 87-jumper wire spacing rod, 88-master link, 89-first anchor ear link plate, 90-second anchor ear link plate, 91-connects wire.
Embodiment
As shown in Figure 2, a kind of high-voltage alternating line tension tower drainage gold utensil provided by the present invention, comprise jumper string 5, described jumper string 5 is arranged between two strain insulator-strings 4 that are connected with drainage thread 6 two ends, the upper end of jumper string 5 and the upper cross-arm 2 of strain tower 1 hinged, its lower end is connected with drainage thread, the lower end of jumper string is also provided with the stopping means for limiting jumper string full swing angle, one end of stopping means and the lower cross-arm of strain tower are hinged, the lower end of its other end and jumper string is hinged, and the full swing angle of the jumper string limited is 5 ° ~ 7 °.
Stopping means wherein comprises spacing jumper string and flexible pull wire, and the upper end of spacing jumper string is connected with the lower end of jumper string by a jockey, and its lower end is fixedly connected with flexible pull wire, and flexible pull wire is fixed on the lower cross-arm of strain tower.
Jockey 8 wherein comprises: one connects main body;
Jumper string connector, be fixed on the upper end of described connection main body, it is connected with the lower end of described jumper string;
Spacing jumper string connector, is fixed on the lower end of described connection main body, and it is connected with the upper end of described spacing jumper string;
Drainage thread connector, be fixed on the lower end of described connection main body, it is connected with drainage thread.
Wherein the structure of jockey 8 as shown in Figure 3 and Figure 4, this is the connected mode of two bundle conductors, connect main body to be vertically formed by fixedly connecting back-to-back by two angle steel 81, jumper string connector is U-shaped fixture 82, and it to be fixed connection by the bearing pin 83 running through two angle steel 81 upper ends; Spacing jumper string connector is U-bolt 84, and two bolts of U-bolt 84 are individually fixed in the lower end of two angle steel 81; Drainage thread connector comprises drainage thread fixed head 86 and soft bus conductor spacer 85, drainage thread fixed head 86 is fixed in the lower end of two angle steel 81 by soft bus conductor spacer 85, the middle part of drainage thread 6 is fixed on drainage thread fixed head 86, the upper end of spacing jumper string 71 is connected with U-bolt 84, and the lower end of jumper string 5 is connected with U-shaped fixture 82.The structures such as above-mentioned connection main body, spacing jumper string, drainage thread connector, jumper string connector also can adopt other version, here not as limitation of the present invention, as long as realize the connection between jumper string and spacing jumper string.
Fig. 5 and Fig. 6 is quadripartion line or six divisural line syndetons, and connection main body wherein comprises: master link 88 and jumper wire spacing rod 87, and jumper wire spacing rod 87 is arranged along the outer surface of master link 88 in even, as shown in Figure 7 and Figure 8; Drainage thread connector is formed by connecting along the axis of master link 88 and multiple jumper wire spacing rod 87 by connecting wire 91, drainage thread connector arranges four or six altogether, and it is insulated from each other between drainage thread connector, during use, only the drainage thread connector that leading line is corresponding with master link 88 two ends need be connected; Jumper string connector comprises the first anchor ear link plate 89, first anchor ear link plate 89 and is fixed on master link 88 by the bolt at tightening two ends, and the lower end of jumper string 5 and the upper end of the first anchor ear link plate 89 are bolted;
Spacing jumper string connector comprises the second anchor ear link plate 90, second anchor ear link plate 90 and is fixed on master link 88 by the bolt at tightening two ends, and the upper end of spacing jumper string 71 and the lower end of the second anchor ear link plate 90 are bolted.
Use restriction drainage thread 6 amplitude of fluctuation, make drainage thread hunting range reduce about 85%, set steel tower 5D1-SJ1 for Guo Wang company 500kV allusion quotation: adopt strain tower drainage gold utensil of the present invention can shorten cross-arm 3.5 meters under strain tower, upper cross-arm 3 meters.Not only save cross-arm tower material, and reduce tower body load, save tower material about 6%.
For 5D1-SJ1-27 rice steel tower, tower weight 66.9 tons, adopts strain tower drainage gold utensil of the present invention, can save tower material 4.01 tons, and tower material, in 9800 yuan/ton, can save 3.93 ten thousand yuan.
Adopt strain tower drainage gold utensil of the present invention, every base strain tower increases by 6 spacing jumper strings altogether, and a market price 2500 yuan/meter, increases about 1.5 ten thousand yuan altogether.Therefore, every base strain tower adds up to the investment of saving about 2.43 ten thousand yuan altogether.Meanwhile, after strain tower shortens cross-arm, wire span central authorities all meet the demands close to Distance geometry electromagnetic environment as calculated.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a high-voltage alternating line tension tower drainage gold utensil, comprise jumper string, described jumper string is arranged between two strain insulator-strings that are connected with drainage thread two ends, the upper end of described jumper string and the upper cross-arm of strain tower hinged, its lower end is connected with drainage thread, it is characterized in that, the lower end of described jumper string is also provided with the stopping means for limiting described jumper string full swing angle, one end of described stopping means and the lower cross-arm of strain tower are hinged, and the lower end of its other end and described jumper string is hinged;
Described stopping means comprises spacing jumper string and flexible pull wire, the upper end of described spacing jumper string is connected with the lower end of described jumper string by a jockey, its lower end is fixedly connected with described flexible pull wire, and described flexible pull wire is fixed on the below cross-arm of strain tower.
2. high-voltage alternating line tension tower drainage gold utensil according to claim 1, is characterized in that,
The full swing angle of described jumper string is 5 ° ~ 7 °.
3. high-voltage alternating line tension tower drainage gold utensil according to claim 1, is characterized in that,
Described jockey comprises: one connects main body;
Jumper string connector, be fixed on the upper end of described connection main body, it is connected with the lower end of described jumper string;
Spacing jumper string connector, is fixed on the lower end of described connection main body, and it is connected with the upper end of described spacing jumper string;
Drainage thread connector, be fixed on the lower end of described connection main body, it is connected with described drainage thread.
4. high-voltage alternating line tension tower drainage gold utensil according to claim 3, is characterized in that,
Described connection main body is vertically formed by fixedly connecting back-to-back by two angle steel, and described jumper string connector is U-shaped fixture, and it to be fixed connection by the bearing pin running through angle steel upper end described in two; Described spacing jumper string connector is U-bolt, and two bolts of described U-bolt are individually fixed in the lower end of angle steel described in two; Described drainage thread connector comprises the soft bus conductor spacer for connecting two drainage wires, and described soft bus conductor spacer is fixed in the below of two angle steel by bolt.
5. high-voltage alternating line tension tower drainage gold utensil according to claim 3, is characterized in that,
Described connection main body comprises: master link and jumper wire spacing rod, and described jumper wire spacing rod is arranged along the outer surface of described master link in even;
Described drainage thread connector is formed by connecting along the axis of described master link and multiple described jumper wire spacing rod by connecting wire, and described drainage thread connector arranges four or six altogether, and insulated from each other between described drainage thread connector;
Described jumper string connector comprises the first anchor ear link plate, and described first anchor ear link plate is fixed on described master link, and the lower end of described jumper string and the upper end of described first anchor ear link plate are bolted;
Described spacing jumper string connector comprises the second anchor ear link plate, and described second anchor ear link plate is fixed on described master link, and the upper end of described spacing jumper string and the lower end of described second anchor ear link plate are bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210242467.8A CN102751687B (en) | 2012-07-12 | 2012-07-12 | Drainage armour clamp of high voltage alternative current circuit tension resisting tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210242467.8A CN102751687B (en) | 2012-07-12 | 2012-07-12 | Drainage armour clamp of high voltage alternative current circuit tension resisting tower |
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| Publication Number | Publication Date |
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| CN102751687A CN102751687A (en) | 2012-10-24 |
| CN102751687B true CN102751687B (en) | 2015-04-15 |
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| CN201210242467.8A Active CN102751687B (en) | 2012-07-12 | 2012-07-12 | Drainage armour clamp of high voltage alternative current circuit tension resisting tower |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105406434B (en) * | 2015-12-15 | 2018-07-10 | 中国电力科学研究院 | A kind of inclined conducting wire hanging method of strong wind area power transmission line wind |
| CN106129939A (en) * | 2016-07-29 | 2016-11-16 | 成都城电电力工程设计有限公司 | A kind of elastic double string parts and elastic double string pendency tower |
| CN107154607A (en) * | 2017-06-22 | 2017-09-12 | 国网新疆电力公司电力科学研究院 | Transmission line of electricity drainage thread wind-proof device |
| CN110544915A (en) * | 2018-05-29 | 2019-12-06 | 中国电力工程顾问集团华北电力设计院有限公司 | Self-adjusting straight-through type strain fitting |
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| CN2930035Y (en) * | 2006-06-15 | 2007-08-01 | 甘肃省电力公司白银供电公司 | Phase jumper wire draining device in 330kVJG1 type iron tower |
| CN101404400A (en) * | 2008-11-17 | 2009-04-08 | 云南省电力设计院 | Heavy ice area dual-loop co-column tension-resistant power transmission iron tower |
| CN201674193U (en) * | 2010-05-07 | 2010-12-15 | 中国电力工程顾问集团中南电力设计院 | Single loop edge phase jumper wire overwind strain tower |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004080923A (en) * | 2002-08-20 | 2004-03-11 | Kansai Electric Power Co Inc:The | Branch connection structure and its construction method for power transmission branched steel tower |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2930035Y (en) * | 2006-06-15 | 2007-08-01 | 甘肃省电力公司白银供电公司 | Phase jumper wire draining device in 330kVJG1 type iron tower |
| CN101404400A (en) * | 2008-11-17 | 2009-04-08 | 云南省电力设计院 | Heavy ice area dual-loop co-column tension-resistant power transmission iron tower |
| CN201674193U (en) * | 2010-05-07 | 2010-12-15 | 中国电力工程顾问集团中南电力设计院 | Single loop edge phase jumper wire overwind strain tower |
Non-Patent Citations (1)
| Title |
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| 500 kV 输电线路风偏故障分析及对策;肖东坡;《电 网 技 术》;20090331;第33卷(第5 期);99-102 * |
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