CN204243690U - A kind of fixed heavy hammer structure of high pressure overhead power line - Google Patents
A kind of fixed heavy hammer structure of high pressure overhead power line Download PDFInfo
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- CN204243690U CN204243690U CN201420703121.8U CN201420703121U CN204243690U CN 204243690 U CN204243690 U CN 204243690U CN 201420703121 U CN201420703121 U CN 201420703121U CN 204243690 U CN204243690 U CN 204243690U
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- yoke plate
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Abstract
The utility model relates to a kind of fixed heavy hammer structure of high pressure overhead power line.The purpose of this utility model is to provide and is a kind ofly fastened on the yoke plate of larger area by multi-disc heavy punch piece, is arranged on the fixed heavy hammer structure of the high pressure overhead power line between suspension insulator and suspension clamp.The technical solution of the utility model is: hang successively from top to bottom on the high voltage iron tower of high 20 ~ 30m the U-shaped screw of connection, U-shaped link, triangle yoke plate, the link plate I of two base angle place parallel suspend of triangle yoke plate, ball-eye, have the molecular suspension insulator of some insulation, socket-clevis eye, reversal of the natural order of things triangle yoke plate, link plate II, widened yoke plate, be bolted on the suspension clamp bottom widened yoke plate and the preformed armor rods for fixing this suspension clamp protects lines; The two sides of widened yoke plate is fixed with some heavy punch pieces by the stud symmetry of arranging in triangle, and fastening at the two ends nut of stud and closed pin clamping.
Description
Technical field
The utility model relates to a kind of fixed heavy hammer structure of high pressure overhead power line, in particular for preventing heavy icing area high pressure overhead power line suspension insulator windage yaw excessive, be applicable to 35kV, 66kV, 110kV grade overhead transmission line that suspension insulator is less.
Background technology
In High aititude and middle low altitude area, supercooling water droplet sticked on wire and formed icing due to very cold, sufficient vapor winter, if process duration is longer, line ice coating thickness will be caused excessive, caused icing density.Height above sea level is higher, atmospheric density and absolute humidity less, thus the discharge voltage of the suspension insulator of transmission line and air gap is reduced.For ensureing the safe operation of high altitude localities overhead transmission line, must ensure that suspension insulator angle of oscillation is in permissible value.For heavy icing area line design, often adopt ways such as increasing steel tower height to avoid using weight excessive to limit suspension insulator angle of oscillation in design as far as possible, but some circuit limits by landform, adopt ways such as increasing steel tower height desirable not to the utmost and invest comparatively large, then considering to adopt weight.Because heavy ice circuit exists icing or uneven icing, circuit deices or icing waves the significantly jump that will cause lead wire and earth wire, weight according to general mounting means limits suspension insulator angle of oscillation, easily cause wire to discharge to tower body, therefore need to install at design heavy icing area circuit weight to be studied.
Re-covered ice circuit once used suspension type weight (as Fig. 1) to increase the loading of suspension clamp place in the past, because of the impact of ice-shedding and strong swing in operation, make the accidents such as hanger damages, weight comes off, porcelain vase breaks, therefore specify that re-covering ice circuit must not use weight.The nineties in 20th century, after 500kV superhigh pressure re-covers the appearance of ice circuit, just very difficult during this regulation performs.Because 500kV line jumpers insulator string must install weight additional to prevent from occurring because of loose contact between each insulator discharging between ball-and-socket.And this weight belongs to fixed, can be fixed on yoke plate very well, there will not be above-mentioned Injury accident, therefore re-cover ice shelf empty Transmission Line Design technical regulation (DL/T 5440-2009) and already existing provisions are revised as " wire uses weight to adopt fixed ".
At present, fixed weight did not also design, applied in the overhead transmission line of 35kV, 66kV, 110kV grade heavy icing area at home, need designed, designed to install fixed weight additional, according to the inhibitory action mechanical analysis of weight to angle of oscillation, more satisfactory way is arranged in below suspension clamp by weight, but together with being just difficult to like this to accomplish " to fix " with suspension insulator.
Summary of the invention
The technical problems to be solved in the utility model is: for above-mentioned Problems existing, thering is provided a kind of is fastened on the yoke plate of larger area by multi-disc heavy punch piece, be arranged on the fixed heavy hammer structure of the high pressure overhead power line between suspension insulator and suspension clamp, its structure is simple, meet the demands, do not affect construction schedule, is conducive to producing, buying and equipment installs.
The technical scheme that the utility model adopts is: a kind of fixed heavy hammer structure of high pressure overhead power line, have be suspended on high 20 ~ 30m high voltage iron tower on the U-shaped screw that connects successively from top to bottom, U-shaped link and triangle yoke plate, parallelly at two base angle places of described triangle yoke plate be hung with the link plate I connected successively, ball-eye, there is the molecular suspension insulator of some insulation, and socket-clevis eye, it is characterized in that: described socket-clevis eye is connected with two base angles of the triangle yoke plate of reversal of the natural order of things, link plate II is hung with successively at the drift angle place of described triangle yoke plate, widened yoke plate, be bolted on the suspension clamp bottom widened yoke plate and the preformed armor rods for fixing this suspension clamp protects lines, the two sides of described widened yoke plate is fixed with some heavy punch pieces by the stud symmetry of arranging in triangle, and fastening at the two ends nut of stud and closed pin clamping.
Described stud, nut, closed pin are standard power securing member.
The beneficial effects of the utility model are: the utility model uses standard power securing member to greatest extent, and do not change suspension insulator canonical form as far as possible, weight is arranged on suspension insulator bottom, inhibit the windage yaw of this insulator string, when making heavy icing area aerial condutor ice-shedding, weight can not collide miscellaneous equipment, meets the requirement using fixed weight at heavy icing area transmission line; Employing weight designs, and both can reduce construction investment, and can meet design specification requirement again, and be conducive to energy development and conveying in western Western Great Development.
Accompanying drawing explanation
Fig. 1 is prior art standard gold utensil heavy punch piece and weight holder structure layout plan figure.
Fig. 2 is structural plan of the present utility model.
Fig. 3 is yoke plate and heavy punch piece combining structure layout plan in the utility model.
Fig. 4 is the A-A view of yoke plate and heavy punch piece combination in the utility model.
Fig. 5, Fig. 6, Fig. 7 are the angle of oscillation permissible value schematic diagram that suspension insulator does not carry additionally heavy punch piece.
Fig. 8, Fig. 9, Figure 10 are the angle of oscillation permissible value schematic diagram that suspension insulator carrys additionally heavy punch piece.
Embodiment
As Fig. 2, Fig. 3, shown in Fig. 4, the present embodiment is with certain western hydroelectric station accommodation road 35KV supply line (mountain area, High aititude, re-cover ice, wire adopts LGJ-180/30) a kind of fixed heavy hammer structure of high pressure overhead power line that designs for example, comprise be suspended on high 20 ~ 30m high voltage iron tower on the U-shaped screw 1 that connects successively from top to bottom, U-shaped link 2, triangle yoke plate 3, parallelly all successively at two base angle places of triangle yoke plate 3 be hung with link plate I 4, be connected to the ball-eye 5 below this link plate I, be connected to the suspension insulator 6 of ball-eye 5 bottom, and the socket-clevis eye 9 hung over bottom suspension insulator 6, the triangle yoke plate 3 of the reversal of the natural order of things be connected with socket-clevis eye 9, the link plate II 10 be connected with the drift angle of the triangle yoke plate 3 of reversal of the natural order of things, be suspended on the widened yoke plate 11 below link plate II 10, by the suspension clamp 7 of hung bolt in the bottom of widened yoke plate 11, and the preformed armor rods of fixing suspension clamp 7 protects lines 8, on the two sides of widened yoke plate 11, by 3, in inverted triangle, distribution stud 13 is symmetrically fixed with 6 heavy punch pieces 12 (3, every limit), and to clamp at the two ends of stud 13 with nut 14 and closed pin 15 and fastening.
In the present embodiment, this fixed heavy hammer structure total length reaches 1750mm, wherein, the shape of widened yoke plate 11 is: top is the triangle of high about 80mm, bottom is the rectangle being about 500mm, wide about 270mm, there is rectangular groove (being convenient to fixing and location) at the wide 350mm of being about of heavy punch piece 12, middle part, the length of side of 3 studs 13 in angular distribution is about 240mm, spacing between the suspension insulator 6 that two strings are parallel is 400mm, this suspension insulator is made up of 5 insulators, and overall length is 730mm.
The present embodiment is in this circuit actual design, and No. as015 adopts BZ21_23.5 sections tower, wire type LGJ-185/30, horizontal span L
h=224m, vertical span L
v=113m, suspension insulator 6 weight G
j=80kg.
According to regulation in " 66kV and following overhead power line design specification " (GB50061-2010), 35kV grade transmission line, height above sea level 3500m, under strong wind, interior mistake, outer operating mode excessively, air gap value gets 0.125m, 0.313m, 0.563m respectively, then the angle of oscillation of suspension insulator 6 refer to adopt suspension insulator 6 straight line pole on wire under operation (maximum wind velocity, lightning overvoltage, switching overvoltage), bear the degree of horizontal wind excitation hour offset.
When not hanging heavy punch piece 12 below suspension insulator 6, then angle of oscillation permissible value (as Fig. 5, Fig. 6, Fig. 7) is outer operating mode 43 ° excessively, interior operating mode 56 °, strong wind operating mode 67 ° excessively.
When suspension insulator 6 underhung has heavy punch piece 12, then angle of oscillation permissible value (as Fig. 8, Fig. 9, Figure 10) is outer operating mode 37 ° excessively, interior operating mode 46 °, strong wind operating mode 52 ° excessively.
Direct use Dao Heng company SLW software calculate this tower do not hang heavy punch piece 12 before angle of oscillation, in table 1.
Table 1 suspension insulator angle of oscillation checkout result
| Tower number | Pole tower forms | Strong wind angle of oscillation | Interior angle of oscillation excessively | Outer angle of oscillation excessively |
| as015 | BZ21_23.5 | 86.4 | 48.3 | 24.5 |
Visible, upper table strong wind angle of oscillation cannot meet the angle of oscillation permissible value 67 ° do not hung before heavy punch piece 12 under strong wind operating mode.
After suspension insulator 6 carrys additionally 6 heavy 120kg heavy punch pieces 12, angle of oscillation result of calculation is in table 2.
Table 2 carrys additionally weight reverse hang insulator string angle of oscillation checkout result
| Tower number | Pole tower forms | Strong wind angle of oscillation | Interior angle of oscillation excessively | Outer angle of oscillation excessively |
| as015 | BZ21_23.5 | 51.5 | 20.3 | 9.1 |
Visible, each value of upper table meets the every permissible value carried additionally in heavy punch piece 12.
Claims (2)
1. the fixed heavy hammer structure of a high pressure overhead power line, have be suspended on high 20 ~ 30m high voltage iron tower on the U-shaped screw (1) that connects successively from top to bottom, U-shaped link (2) and triangle yoke plate (3), parallelly at two base angle places of described triangle yoke plate (3) be hung with the link plate I (4) connected successively, ball-eye (5), there is the molecular suspension insulator of some insulation (6), and socket-clevis eye (9), it is characterized in that: described socket-clevis eye (9) is connected with two base angles of the triangle yoke plate (3) of reversal of the natural order of things, link plate II (10) is hung with successively at the drift angle place of described triangle yoke plate (3), widened yoke plate (11), the suspension clamp (7) and the preformed armor rods for fixing this suspension clamp that are bolted on widened yoke plate (11) bottom protect lines (8), the two sides of described widened yoke plate (11) by the stud (13) arranged in triangle symmetrical be fixed with some heavy punch pieces (12), and to clamp and fastening at the two ends nut (14) of stud (13) and closed pin (15).
2. the fixed heavy hammer structure of a kind of high pressure overhead power line according to claim 1, is characterized in that: described stud (13), nut (14), closed pin (15) are standard power securing member.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420703121.8U CN204243690U (en) | 2014-11-20 | 2014-11-20 | A kind of fixed heavy hammer structure of high pressure overhead power line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420703121.8U CN204243690U (en) | 2014-11-20 | 2014-11-20 | A kind of fixed heavy hammer structure of high pressure overhead power line |
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| CN204243690U true CN204243690U (en) | 2015-04-01 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633890A (en) * | 2016-03-30 | 2016-06-01 | 中国电力工程顾问集团西南电力设计院有限公司 | Suspension tension string connecting device |
| CN106384987A (en) * | 2015-07-27 | 2017-02-08 | 中国电力科学研究院 | Interval rod used for insulator chain |
| CN106571611A (en) * | 2016-09-26 | 2017-04-19 | 安徽华电工程咨询设计有限公司 | Adaptive double-hung duplex suspension string |
| CN106711904A (en) * | 2015-07-27 | 2017-05-24 | 中国电力科学研究院 | Shock absorbing spacer of insulator strings |
| CN108682522A (en) * | 2018-05-25 | 2018-10-19 | 华润电力风能（阳江）有限公司 | Single conductor simply connected suspension insulator |
| CN113032878A (en) * | 2021-03-24 | 2021-06-25 | 贵州电网有限责任公司 | Anti-icing and disaster-reducing design method capable of repairing iron tower |
-
2014
- 2014-11-20 CN CN201420703121.8U patent/CN204243690U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106384987A (en) * | 2015-07-27 | 2017-02-08 | 中国电力科学研究院 | Interval rod used for insulator chain |
| CN106711904A (en) * | 2015-07-27 | 2017-05-24 | 中国电力科学研究院 | Shock absorbing spacer of insulator strings |
| CN106711904B (en) * | 2015-07-27 | 2018-09-14 | 中国电力科学研究院 | A kind of damping conductor spacer of insulator chain |
| CN105633890A (en) * | 2016-03-30 | 2016-06-01 | 中国电力工程顾问集团西南电力设计院有限公司 | Suspension tension string connecting device |
| CN105633890B (en) * | 2016-03-30 | 2018-03-02 | 中国电力工程顾问集团西南电力设计院有限公司 | One kind pendency strain insulator-string attachment means |
| CN106571611A (en) * | 2016-09-26 | 2017-04-19 | 安徽华电工程咨询设计有限公司 | Adaptive double-hung duplex suspension string |
| CN106571611B (en) * | 2016-09-26 | 2018-05-11 | 安徽华电工程咨询设计有限公司 | A kind of self-adapting type is double to hang duplex suspension string |
| CN108682522A (en) * | 2018-05-25 | 2018-10-19 | 华润电力风能（阳江）有限公司 | Single conductor simply connected suspension insulator |
| CN113032878A (en) * | 2021-03-24 | 2021-06-25 | 贵州电网有限责任公司 | Anti-icing and disaster-reducing design method capable of repairing iron tower |
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