CN203983912U - Two division strain insulator-strings for the above ultra-high-tension power transmission line of a kind of 500kV - Google Patents
Two division strain insulator-strings for the above ultra-high-tension power transmission line of a kind of 500kV Download PDFInfo
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- CN203983912U CN203983912U CN201420411848.9U CN201420411848U CN203983912U CN 203983912 U CN203983912 U CN 203983912U CN 201420411848 U CN201420411848 U CN 201420411848U CN 203983912 U CN203983912 U CN 203983912U
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Abstract
The utility model provides two division strain insulator-strings for the above ultra-high-tension power transmission line of a kind of 500kV, comprise two suspension arrangements, two insulator strings (6) and two strain clamps (12), each connection insulator string (6) is wherein connected with an independent suspension arrangement, suspension arrangement one end is connected with insulator string (6) one end, insulator string (6) other end with socket-clevis eye (7), be connected yoke plate (8) one end and connect successively, connect yoke plate (8) other end and be connected with strain clamp (12).The utility model changes to double bundle conductor serial type by common conductors on quad bundled serial type, having realized two divisions of transmission pressure in the above ultra-high-tension power transmission line of 500kV arranges, guaranteeing under the condition that transmission line is constant to the conveying capacity of electric energy, not only wind resistance snow ability is stronger, effectively improved the operating safety factor of transmission line, and the steel tower quality in transmission line, the construction cost of having saved work transmission line have been alleviated.
Description
Technical field
The utility model relates to electric power transmission line strain insulator-string technical field, especially relates to two division strain insulator-strings for the above ultra-high-tension power transmission line of a kind of 500kV.
Background technology
For ultra-high-tension power transmission line more than 500kV, because electric pressure is very high, and it is often larger by way of regional climate change, even also may be by way of heavy ice-covering area, in order to reduce the operation risk of transmission line, must adopt the transmission pressure of larger sectional area.In existing High Voltage Transmission Line Engineering, have no the relevant report of 1000 square millimeters of above heavy in section transmission pressures of extensive use abroad, though domestic, have High Voltage Transmission Line Engineering to select the heavy in section transmission pressure of 1250 square millimeters, this project is also in the gold utensil development stage at present.
In the above High Voltage Transmission Line Engineering of 500kV, select JLHA1/G1A-1250/100 aluminium alloy conductors steel all to belong to first Application at home and abroad, there is well perspective and promotional value.Because this diameter of wire is 47.85 millimeters, sectional area of wire reaches 1250 square millimeters, therefore, himself weight is very heavy, add it often more severe by way of local climate condition, the common conductors on quad bundled serial type that existing general transmission line is used and strain insulator-string gold utensil are avenged the factors such as ability, engineering construction cost height due to wind resistance, all can not meet the engine request of the above ultra-high-tension power transmission line safety of 500kV, reliability service and good economy performance completely.
Utility model content
The technical problems to be solved in the utility model is: the problem existing for prior art, two division strain insulator-strings for the above ultra-high-tension power transmission line of a kind of 500kV are provided, strengthen fail safe, the reliability of the above ultra-high-tension power transmission line operation of 500kV, and effectively reduce the construction cost of the above ultra-high-tension power transmission line of 500kV.
The technical problems to be solved in the utility model realizes by the following technical solutions: two division strain insulator-strings for the above ultra-high-tension power transmission line of a kind of 500kV, comprise two suspension arrangements, two insulator strings and two strain clamps, each connection insulator string is wherein connected with an independent suspension arrangement, described suspension arrangement one end is connected with insulator string one end, the insulator string other end with socket-clevis eye, be connected yoke plate one end and connect successively, the described connection yoke plate other end is connected with strain clamp.
Preferably, the spacing between the central axis of described two strain clamps is 650mm.
Preferably, the spacing between the central axis of two described insulator strings is 700mm.
Preferably, a described independent suspension arrangement comprises hardware, U-shaped link and the ball-eye connecting successively, and ball-eye is wherein connected with connection insulator string simultaneously.
Preferably, described hardware is GD type cake hardware, and described ball-eye is QP type ball-eye.
Preferably, a described independent suspension arrangement also comprises the first adjustment plate, the first flat pattern link plate and the towing plate connecting successively, and the first adjustment plate is wherein connected with U-shaped link simultaneously, and towing plate is connected with the second flat pattern link plate simultaneously.
Preferably, described the first adjustment plate is that DB type is adjusted plate, and described the first flat pattern link plate is P type link plate, and described towing plate is QY type towing plate.
Preferably, described strain insulator-string also comprises the first right angle link plate, the second right angle link plate and cross yoke plate, connection yoke plate is wherein connected with two first link plate one end, right angle respectively with one end, two first right angle link plate other ends are connected with two cross yoke plate one end respectively, two cross yoke plate other ends are connected with two second link plate one end, right angle respectively, and two second right angle link plate other ends are connected with two strain clamps respectively.
Preferably, described strain insulator-string also comprises the second adjustment plate, on the second adjustment plate, offers several through holes, and described second adjusts plate two ends is connected with the second right angle link plate, strain clamp respectively.
Preferably, described strain insulator-string also comprises that two are all pressed shading ring, and each all presses the corresponding cross yoke plate of shading ring and homonymy to be connected.
Compared with prior art, the beneficial effects of the utility model are: due in the above ultra-high-tension power transmission line of 500kV, the sectional area of transmission pressure used is very large, own wt is also heavier, can realize two divisions of transmission pressure arrange by the utility model, and the common conductors on quad bundled serial type used with general circuit compared, wire division number has reduced half, and the mechanical performance of large-section lead is better, sag is less, and overload capacity is also stronger.Particularly when icing operating mode, act on steel tower total vertical, level and longitudinal loading all little, therefore, utilize the utility model not only can guarantee that transmission line is constant to the conveying capacity of electric energy, and wind resistance snow ability is stronger, effectively reduced the operation risk of transmission line, simultaneously, also be conducive to alleviate the steel tower quality in transmission line and reduce basic expense, having improved the economy that the above High Voltage Transmission Line Engineering of 500kV is built.
Accompanying drawing explanation
Fig. 1 is the front view of two division strain insulator-strings for the above ultra-high-tension power transmission line of a kind of 500kV of the utility model.
Fig. 2 is the vertical view of two division strain insulator-strings for the above ultra-high-tension power transmission line of a kind of 500kV of the utility model.
Figure middle part product token name claims: 1-U type link, and 2-first adjusts plate, 3-the first flat pattern link plate, 4-towing plate, 5-ball-eye, 6-insulator string, 7-socket-clevis eye, 8-connects yoke plate, 9-the first right angle link plate, 10-cross yoke plate, 11-all presses shading ring, 12-strain clamp, 13-hardware, 14-the second flat pattern link plate, 15-the second right angle link plate, 16-second adjusts plate, 17-transmission pressure.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the drawings and specific embodiments, the utility model is elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The present embodiment for transmission pressure 17 select JLHA1/G1A-1250/100 aluminium alloy conductors steel, its diameter is 47.85 millimeters, sectional area of wire reaches 1250 square millimeters, calculates pull-off force and reaches 509130N.Two division strain insulator-strings for the above ultra-high-tension power transmission line of a kind of 500kV as shown in Figure 1 and Figure 2, comprise suspension arrangement, insulator string 6 and strain clamp 12.Suspension arrangement wherein comprises separate two groups, and each independent suspension arrangement comprises hardware 13, U-shaped link 1 and the ball-eye 5 connecting successively, and described ball-eye 5 is connected with connection insulator string 6 simultaneously.Described hardware 13 is GD type cake hardwares, is mainly used in being connected between insulator string 6 and shaft tower; Described ball-eye 5 adopts QP type ball-eye.In order to increase the spacing between insulator string 6 and shaft tower, can organize independently and increase the first adjustment plate 2, the first flat pattern link plate 3 and towing plate 4 that connection is successively set on suspension arrangement basis in above-mentioned each, the first adjustment plate 2 is wherein connected with U-shaped link 1 simultaneously, and towing plate 4 is connected with the second flat pattern link plate 14 simultaneously.Wherein first to adjust plate 2 be that DB type is adjusted plate, its circular periphery is provided with several through holes, by the first adjustment plate 2, can regulate easily relative rotation between insulator string 6 and hardware 13 and the spacing between two hardwares 13; Described the first flat pattern link plate 3 is selected P type link plate, described towing plate 4 adopts QY type towing plate, said structure had both been conducive to improve the integrated connection intensity of strain insulator-string, to guarantee safety, the reliability service of transmission line, facilitated again supporting installation and the adjusting of strain insulator-string simultaneously.
As shown in Figure 2, described insulator string 6 arranges two, layout is parallel to each other, and the spacing between the central axis of two insulator strings 6 is 700mm, insulator string 6 one end are connected with ball-eye 5, the other end and socket-clevis eye 7, connecting yoke plate 8 one end connects successively, connecting yoke plate 8 other ends is connected with two first right angle link plate 9 one end respectively, two first right angle link plate 9 other ends are connected with two cross yoke plate 10 one end respectively, two cross yoke plate 10 other ends are connected with two second right angle link plate 15 one end respectively, two second right angle link plate 15 other ends are connected with two strain clamps 12 respectively.In order to facilitate strain clamp 12 to regulate corner, between strain clamp 12 and the second right angle link plate 15, be connected with the second adjustment plate 16.Described second to adjust plate 16 be that DB type is adjusted plate, and its circular periphery is offered several through holes, utilizes this second to adjust plate 16 and can regulate easily relative rotation between strain clamp 12 and insulator string 6 and the spacing between two strain clamps 12.Due to the present embodiment for transmission pressure 17 select JLHA1/G1A-1250/100 aluminium alloy conductors steel, and be applied on the above ultra-high-tension power transmission line of 500kV, for guaranteeing the security of operation, reliable of transmission line, as calculated, the spacing between the central axis of two strain clamps 12 is preferably set to 650mm.In order to ensure strain insulator-string gold utensil, on the above ultra-high-tension power transmission line of 500kV, there is good all pressures, shielding properties, in the outside of two strain clamps 12, arrange respectively one and all press shading ring 11, described each all presses shading ring 11 and the corresponding cross yoke plate 10 of homonymy to be bolted, by installing respectively and all press shading ring 11 in strain insulator-string serial type both sides, can concentrate on same strain insulator-string gold utensil all pressing with shielding action, and make serial type structure more succinct, compact.
The utility model that adopts said structure is two division strain insulator-string gold utensils of double hanging point twin insulator strings, when it is applied in the above ultra-high-tension power transmission line of 500kV, the sectional area of considering transmission line transmission pressure used 17 is very large, wire own wt is also heavier, by adopting two division strain insulator-string of the present utility model common conductors on quad bundled serial type can be changed to double bundle conductor serial type, thereby reduced wire division number, and the mechanical performance of large-section lead is better, sag is less, and overload capacity is also stronger.Particularly when icing operating mode, act on steel tower total vertical, level and longitudinal loading all little.Therefore, common conductors on quad bundled serial type and the gold utensil used with general circuit are compared, this double bundle conductor serial type both can strengthen the wind resistance snow ability of the above ultra-high-tension power transmission line of 500kV, improved the coefficient of safety of transmission line operation, also can under guaranteeing the condition that transmission line is constant to the conveying capacity of electric energy, alleviate the steel tower quality of loads in transmission line simultaneously, the engineering construction basis expense of having saved transmission line, has good economy and application prospect.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; it should be pointed out that all any modifications of doing within spirit of the present utility model and principle, be equal to replacement and improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. the above ultra-high-tension power transmission line use pair of 500kV divides strain insulator-strings, comprise suspension arrangement, insulator string (6) and strain clamp (12), described suspension arrangement one end is connected with insulator string (6) one end, insulator string (6) other end with socket-clevis eye (7), be connected yoke plate (8) one end and connect successively, described connection yoke plate (8) other end is connected with strain clamp (12), it is characterized in that: described insulator string (6) is provided with two, described strain clamp (12) is provided with two, and each connection insulator string (6) is wherein connected with an independent suspension arrangement.
2. two division strain insulator-strings for the above ultra-high-tension power transmission line of 500kV according to claim 1, is characterized in that: the spacing between the central axis of described two strain clamps (12) is 650mm.
3. two division strain insulator-strings for the above ultra-high-tension power transmission line of 500kV according to claim 1, is characterized in that: the spacing between the central axis of described two insulator strings (6) is 700mm.
4. according to two division strain insulator-strings for the above ultra-high-tension power transmission line of the 500kV described in claim 1-3 any one, it is characterized in that: a described independent suspension arrangement comprises hardware (13), U-shaped link (1) and the ball-eye (5) connecting successively, ball-eye wherein (5) is connected with connection insulator string (6) simultaneously.
5. two division strain insulator-strings for the above ultra-high-tension power transmission line of 500kV according to claim 4, is characterized in that: described hardware (13) is GD type cake hardware, and described ball-eye (5) is QP type ball-eye.
6. the above ultra-high-tension power transmission line use pair of 500kV according to claim 4 divides strain insulator-strings, it is characterized in that: a described independent suspension arrangement also comprises the first adjustment plate (2), the first flat pattern link plate (3) and the towing plate (4) connecting successively, the first adjustment plate (2) is wherein connected with U-shaped link (1) simultaneously, and towing plate (4) is connected with the second flat pattern link plate (14) simultaneously.
7. the above ultra-high-tension power transmission line use pair of 500kV according to claim 6 divides strain insulator-strings, it is characterized in that: described the first adjustment plate (2) is that DB type is adjusted plate, described the first flat pattern link plate (3) is P type link plate, and described towing plate (4) is QY type towing plate.
8. according to two division strain insulator-strings for the above ultra-high-tension power transmission line of the 500kV described in claim 1-3 any one, it is characterized in that: described strain insulator-string also comprises the first right angle link plate (9), the second right angle link plate (15) and cross yoke plate (10), connection yoke plate (8) is wherein connected with two first right angle link plate (9) one end respectively with one end, two first right angle link plate (9) other ends are connected with two cross yoke plates (10) one end respectively, two cross yoke plates (10) other end is connected with two second right angle link plate (15) one end respectively, two second right angle link plate (15) other ends are connected with two strain clamps (12) respectively.
9. the above ultra-high-tension power transmission line use pair of 500kV according to claim 8 divides strain insulator-strings, it is characterized in that: described strain insulator-string also comprises the second adjustment plate (16), on the second adjustment plate (16), offer several through holes, described second adjusts plate (16) two ends is connected with the second right angle link plate (15), strain clamp (12) respectively.
10. the above ultra-high-tension power transmission line use pair of 500kV according to claim 8 divides strain insulator-strings, it is characterized in that: described strain insulator-string also comprises that two are all pressed shading ring (11), and each all presses the corresponding cross yoke plate of shading ring (11) and homonymy (10) to be connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411848.9U CN203983912U (en) | 2014-07-24 | 2014-07-24 | Two division strain insulator-strings for the above ultra-high-tension power transmission line of a kind of 500kV |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411848.9U CN203983912U (en) | 2014-07-24 | 2014-07-24 | Two division strain insulator-strings for the above ultra-high-tension power transmission line of a kind of 500kV |
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| CN203983912U true CN203983912U (en) | 2014-12-03 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611842A (en) * | 2017-08-29 | 2018-01-19 | 国网山西省电力公司晋城供电公司 | The quick adjustment plate of DB types |
| CN109149489A (en) * | 2018-09-27 | 2019-01-04 | 国网河南省电力公司电力科学研究院 | A kind of overhead transmission line double-linkage double-hanging-point self-balancing suspension string |
| CN109243726A (en) * | 2018-09-27 | 2019-01-18 | 国网河南省电力公司电力科学研究院 | A kind of overhead transmission line double-linkage double-hanging-point self-balancing strain insulator-string |
| CN110011250A (en) * | 2019-04-23 | 2019-07-12 | 河南送变电建设有限公司 | A kind of strain insulator-string suitable for adjusting wire length |
| WO2019242165A1 (en) * | 2018-06-17 | 2019-12-26 | 江苏天南电力器材有限公司 | Strain backup integrated device for carbon fiber wire |
| CN111430089A (en) * | 2020-01-21 | 2020-07-17 | 国网浙江省电力有限公司湖州供电公司 | Perpendicular two strain insulator string that hang some pair and hang and establish device |
| CN112271676A (en) * | 2020-11-13 | 2021-01-26 | 中国电力工程顾问集团西南电力设计院有限公司 | 500 kilovolt suspension plate and V-shaped suspension structure in high-altitude area |
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2014
- 2014-07-24 CN CN201420411848.9U patent/CN203983912U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611842A (en) * | 2017-08-29 | 2018-01-19 | 国网山西省电力公司晋城供电公司 | The quick adjustment plate of DB types |
| WO2019242165A1 (en) * | 2018-06-17 | 2019-12-26 | 江苏天南电力器材有限公司 | Strain backup integrated device for carbon fiber wire |
| US11114834B2 (en) | 2018-06-17 | 2021-09-07 | Jiangsu Tiannan Electric Power Equipment Co., Ltd. | Strain backup integrated device carbon fiber wire |
| CN109149489A (en) * | 2018-09-27 | 2019-01-04 | 国网河南省电力公司电力科学研究院 | A kind of overhead transmission line double-linkage double-hanging-point self-balancing suspension string |
| CN109243726A (en) * | 2018-09-27 | 2019-01-18 | 国网河南省电力公司电力科学研究院 | A kind of overhead transmission line double-linkage double-hanging-point self-balancing strain insulator-string |
| CN109243726B (en) * | 2018-09-27 | 2021-05-07 | 国网河南省电力公司电力科学研究院 | Duplex double-hanging-point self-balancing tension string for overhead transmission line |
| CN110011250A (en) * | 2019-04-23 | 2019-07-12 | 河南送变电建设有限公司 | A kind of strain insulator-string suitable for adjusting wire length |
| CN111430089A (en) * | 2020-01-21 | 2020-07-17 | 国网浙江省电力有限公司湖州供电公司 | Perpendicular two strain insulator string that hang some pair and hang and establish device |
| CN111430089B (en) * | 2020-01-21 | 2021-11-09 | 国网浙江省电力有限公司湖州供电公司 | Perpendicular two strain insulator string that hang some pair and hang and establish device |
| CN112271676A (en) * | 2020-11-13 | 2021-01-26 | 中国电力工程顾问集团西南电力设计院有限公司 | 500 kilovolt suspension plate and V-shaped suspension structure in high-altitude area |
| CN112271676B (en) * | 2020-11-13 | 2024-05-24 | 中国电力工程顾问集团西南电力设计院有限公司 | 500 KV suspension hanging plate and V-shaped suspension structure in high-altitude area |
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| C14 | Grant of patent or utility model | ||
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| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP SOUTHWEST Free format text: FORMER NAME: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
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| CP01 | Change in the name or title of a patent holder |
Address after: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd. Patentee after: Chengdu Electric Power Fittings General Factory Address before: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation Patentee before: Chengdu Electric Power Fittings General Factory |