CN202645101U - Four-circuit steel tube tower enabling double-circuit 1000 kV and double-circuit 500 kV alternating current power transmission to be conducted on same tower - Google Patents
Four-circuit steel tube tower enabling double-circuit 1000 kV and double-circuit 500 kV alternating current power transmission to be conducted on same tower Download PDFInfo
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- CN202645101U CN202645101U CN 201220290244 CN201220290244U CN202645101U CN 202645101 U CN202645101 U CN 202645101U CN 201220290244 CN201220290244 CN 201220290244 CN 201220290244 U CN201220290244 U CN 201220290244U CN 202645101 U CN202645101 U CN 202645101U
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Abstract
本实用新型提供了一种双回1000kV与双回500kV交流输电同塔四回钢管塔，对于节省线路走廊、减少工程投资和提高输送容量起到较大作用。铁塔由地线支架、1000kV上导横担、1000kV中导横担、1000kV下导横担、500kV上中导横担、500kV下导横担、变坡以上塔身、变坡以下塔身及塔腿组成，全部导线悬垂串按“V”型布置，1000kV导线垂直排列，布置在上部三层横担上，500kV导线三角排列，布置在下部二层横担上。本实用新型通过对塔型的合理规划，降低了塔高，节省了线路走廊，该塔结构简洁、传力清晰，降低了变坡位置主管杆端弯矩，能够充分发挥塔材的承载性能，有效降低铁塔重量；钢管全部采用插板和锻造法兰联接，并首次应用强度级差高颈锻造法兰，与常规钢管塔相比，减轻塔重约20％。
The utility model provides a double-circuit 1000kV and double-circuit 500kV AC transmission tower with a four-circuit steel pipe tower, which plays a greater role in saving line corridors, reducing engineering investment and improving transmission capacity. The iron tower consists of ground wire support, 1000kV upper guide cross arm, 1000kV middle guide cross arm, 1000kV lower guide cross arm, 500kV upper middle guide cross arm, 500kV lower guide cross arm, tower body above the slope change, tower body below the slope change and the tower It is composed of legs, and all the wires are arranged in a "V" shape. The 1000kV wires are arranged vertically on the upper three-layer cross-arm, and the 500kV wires are arranged in a triangle and arranged on the lower two-layer cross-arm. The utility model reduces the height of the tower and saves the line corridor through the reasonable planning of the tower type. The structure of the tower is simple, the force transmission is clear, and the bending moment of the main rod end at the slope changing position is reduced, so that the load-bearing performance of the tower material can be fully exerted. Effectively reduce the weight of the iron tower; all steel pipes are connected by inserting plates and forged flanges, and for the first time, high-neck forged flanges with different strength levels are applied. Compared with conventional steel pipe towers, the weight of the tower is reduced by about 20%.
Description
Technical field
The utility model belongs to the transmission line equipment field, is specifically related to a kind of two 1000kV of returning and returns 500kV ac transmission with four times steel tube towers of tower with two.
Background technology
" development extra-high voltage " included China " 12 " planning outline in, becomes the important content of national strategy, and the development extra-high voltage is the most important thing of State Grid Corporation of China " 12 " power grid construction, and engineering construction faces new challenges.The end of the year 2008, the success of China's first 1000kV AC extra high voltage transmission line experiment and demonstration engineering is built up, indicate the once great leap of China's technology of transmission of electricity development, but the problem that circuit corridor anxiety in the UHV transmission line construction, also occurred, particularly populous, economically developed East China Soviet Union Shanghai, Zhejiang is regional, original power transmission line corridor will be utilized in these rare areas, local line corridor, and extra high voltage line and supertension line parallel erected on same tower need be carried out.
Two times 1000kV and two 500kV that return set up with tower four return leads and meet the general requirement of building a resource-conserving society, be economically developed, the soil is expensive, the house congested area is saved the circuit corridor and the most effectual way of construction investment, raising transmission capacity.Two times 1000kV and two 500kV that return also can obviously increase with tower four circuit pole tower height and weight, for being subjected to the larger electric power line pole tower of Wind effects, along with its reliability of increase of tower height more and more can not be ignored.
Summary of the invention
The utility model purpose is to provide a kind of two 1000kV of returning to return 500kV ac transmission with four times steel tube towers of tower with two, for saving circuit corridor, minimizing construction investment and improving transmission capacity and play larger effect, and the four times steel tube towers under extreme conditions ability of anti-natural calamity improve, and have guaranteed the reliability of ultra-high/extra-high voltage multi-circuit lines on the same tower.
For achieving the above object, the technical scheme taked of the utility model is:
A kind of two 1000kV of returning returns 500kV ac transmission with four times steel tube towers of tower with two, and described steel tube tower is provided with tower head, body of the tower and tower leg along its axis direction; Its improvements are:
Described steel tube tower adopts does font; Described body of the tower comprises body of the tower and lower body of the tower, and described upper body of the tower and lower body of the tower are that conical steel pipe consists of;
Described body of the tower be provided with successively from top to bottom lead on the 1000kV lead among cross-arm, the 1000kV lead cross-arm under cross-arm, the 1000kV, upper the leading under cross-arm and the 500kV of 500kV led cross-arm;
The position, change slope of described body of the tower is arranged on leads the cross-arm place under the described 500kV, become the slope oblique material of place's body of the tower and take the X-type arrangement form.
Another optimal technical scheme of the present invention is: the two ends of leading cross-arm on the described 1000kV are arranged with earth wire support, and described earth wire support is steel angle structure.
An again optimal technical scheme of the present invention is: parallel vertical setting between described three 1100kV cross-arms, umbellate form setting between described two 500kV cross-arms is led upper the leading between the cross-arm of cross-arm and 500kV and is vertically arranged under the described 1000kV.。
An again optimal technical scheme of the present invention is: adopt plate and forged flange to connect between the steel pipe of described steel tube tower.
Another optimal technical scheme of the present invention is: described body of the tower arranges one and becomes the slope, becomes the slope coplanar every face and orlop 500kV cross-arm lower plane, body of the tower become the slope every face take upgrade as 4.8%, body of the tower become sloping every face take descending slope as 14.6%.
Owing to having adopted technique scheme, compared with prior art, the beneficial effects of the utility model comprise:
1) 1000kV exchanges with 500kV with four times steel tube towers of tower and adopts dried font steel tube tower, has arranged altogether 5 layers of cross-arm, and earth wire support is connected on the superiors' cross-arm; 12 phase conductor suspension strings are all arranged by " V " type, 1000kV wire vertical arrangement, 500kV wire triangle arrangement, wherein lead on the 500kV with in lead a public cross-arm; By to the making rational planning for of tower, effectively reduce tower height, saved the circuit corridor.
By tower material reasonable Arrangement, make that this tower structure is succinct, power transmission is clear, effectively reduce and become sloping position supervisor's Moment at End, can give full play to the load-carrying properties of tower material, effectively reduce steel tower weight.
2) adopt steel tube tower can give full play to steel tube component and bear the performances such as blast is little, the cross section bending rigidity is large, plasticity is good, reduced on the one hand steel tower weight, reduced basic role power, strengthen on the other hand steel tower and under extreme conditions resisted the ability of natural calamity, guaranteed the reliability of ultra-high/extra-high voltage multi-circuit lines on the same tower.
3) improve body of the tower and become sloping position, will become the slope and be arranged on first floor cross-arm place, and will become slope place's oblique material of body of the tower and be arranged to " * " pattern, reduced main material Moment at End, reduced main material specification.
4) the highest material of steel pipe is Q420B, and steel pipe all adopts plate and forged flange to connect, and the differential hub forged flange of first Application intensity, compares with conventional steel tube tower, alleviates tower weight approximately 20%.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is that a kind of two 1000kV of returning returns 500kV ac transmission with the Facad structure schematic diagram of four times steel tube towers of tower with two;
Fig. 2 is that a kind of two 1000kV of returning returns 500kV ac transmission with the side structure schematic diagram of four times steel tube towers of tower with two;
Fig. 3 is that a kind of two 1000kV of returning returns 500kV ac transmission with the differential hub forged flange of the intensity front view of four times steel tube towers of tower with two;
Fig. 4 is that a kind of two 1000kV of returning returns 500kV ac transmission with the differential hub forged flange of the intensity sectional drawing of four times steel tube towers of tower with two;
Fig. 5 is that a kind of two 1000kV of returning returns 500kV ac transmission with the steel tube component schematic cross-section of four times steel tube towers of tower with two.
Reference numeral:
Lead on 1-earth wire support, the 2-1000kV to lead among cross-arm, the 3-1000kV and lead upper the leading of cross-arm, 5-500kV under cross-arm, the 4-1000kV and lead under cross-arm, the 6-500kV that cross-arm, 7-become the above body of the tower in slope, 8-becomes sloping following body of the tower, 9-tower leg.
The specific embodiment
Below in conjunction with example the utility model is described in detail.
The utility model purpose is to provide a kind of circuit corridor rare area, and 1000kV extra-high voltage and 500kV super-pressure are with the steel tower of the new structure of tower four times and frame, and it includes tower leg 9, body of the tower, cross-arm and earth wire support 1.Two times 1000kV and two times 500kV transmission line of alternation currents are with tower four Loop Steel Towers, and 124.1 meters of overall heights are China and even the power transmission steel pipe tower that single tower transmission capacity is maximum, highly the highest, load is maximum that is applied to up to now in the world general line project.The highest material of steel pipe is Q420B, and steel pipe all adopts plate and forged flange to connect the differential hub forged flange of first Application intensity.
The RELIABILITY INDEX of this tower is not less than 3.8, based on the load return periods in 100 years the shaft tower wind fluttering factor has been carried out segmentation calculating, has taken into full account the impact of cross-arm size and quality sudden change.Considered the adverse effect of main material Moment at End and wind load " Eiffel effect " in the calculating.This tower body of the tower master material has been selected the Q420 high strength steel pipe and has been connected the Q420 band neck W.N flange of configuration and connects, and through Technological Economy relatively, compares with the Q345 steel tube tower, alleviates tower weight approximately 20%.
As shown in Figure 1, this steel tower is led upper the leading of cross-arm 4,500kV and is led cross-arm 6 under cross-arm 5, the 500kV, becomes the above body of the tower 7 in slope, becomes sloping following body of the tower 8 and tower leg 9 forms by leading on earth wire support 1, the 1000kV to lead among cross-arm 2, the 1000kV under cross-arm 3, the 1000kV.Fig. 2 is four times steel tube tower left views.
The all conducting suspension string is by " V " type layout, and 1000kV wire vertical arrangement is arranged on the three layers of cross-arm in top, namely leads on the 1000kV to lead among cross-arm 2, the 1000kV and leads cross-arm 4 under cross-arm 3 and the 1000kV; 500kV wire triangle arrangement is arranged on the two layers of cross-arm in bottom, and namely upper the leading of 500kV led cross-arm 6 under cross-arm 5 and the 500kV.
Steel tower adopts does font, body of the tower is become sloping position be arranged on first floor cross-arm place, becomes the slope oblique material of place's body of the tower and takes " * " shape layout pattern.Except earth wire support 1 is the steel angle structure, steel tubular structure is all adopted at all the other positions, and the highest material of steel pipe is Q420B, and steel pipe all adopts plate and forged flange to connect the differential hub forged flange of first Application intensity.By tower material reasonable Arrangement, make that this tower structure is succinct, power transmission is clear, effectively reduce and become sloping position supervisor's Moment at End, can give full play to the load-carrying properties of tower material, effectively reduce steel tower weight.Fig. 3, Fig. 4 are forged flange front view and sectional drawing, and Fig. 5 is the steel tube component cross-sectional form.
Invention has been described according to specific exemplary embodiment herein.It will be apparent carrying out to one skilled in the art suitable replacement or revise under not departing from the scope of the present invention.Exemplary embodiment only is illustrative, rather than to the restriction of scope of the present invention, scope of the present invention is by appended claim definition.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220290244 CN202645101U (en) | 2012-06-15 | 2012-06-15 | Four-circuit steel tube tower enabling double-circuit 1000 kV and double-circuit 500 kV alternating current power transmission to be conducted on same tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220290244 CN202645101U (en) | 2012-06-15 | 2012-06-15 | Four-circuit steel tube tower enabling double-circuit 1000 kV and double-circuit 500 kV alternating current power transmission to be conducted on same tower |
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| CN202645101U true CN202645101U (en) | 2013-01-02 |
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| CN 201220290244 Expired - Lifetime CN202645101U (en) | 2012-06-15 | 2012-06-15 | Four-circuit steel tube tower enabling double-circuit 1000 kV and double-circuit 500 kV alternating current power transmission to be conducted on same tower |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346515A (en) * | 2013-05-30 | 2013-10-09 | 中国电力科学研究院 | Method for reducing capacitive induced voltage among supervoltage lines and extra-high voltage lines |
| CN103726703A (en) * | 2013-11-22 | 2014-04-16 | 国家电网公司 | Alternating current extra-high voltage same-tower double-circuit tangent tower |
| CN103944105A (en) * | 2014-05-06 | 2014-07-23 | 国网上海市电力公司 | Pulley hanging point spanning frame with four circuits on same tower |
| CN103956680A (en) * | 2014-05-06 | 2014-07-30 | 国网上海市电力公司 | Safe and reliable crossing frame |
| CN108425537A (en) * | 2016-06-27 | 2018-08-21 | 孙丽君 | A kind of electric force pole tower |
-
2012
- 2012-06-15 CN CN 201220290244 patent/CN202645101U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346515A (en) * | 2013-05-30 | 2013-10-09 | 中国电力科学研究院 | Method for reducing capacitive induced voltage among supervoltage lines and extra-high voltage lines |
| CN103726703A (en) * | 2013-11-22 | 2014-04-16 | 国家电网公司 | Alternating current extra-high voltage same-tower double-circuit tangent tower |
| CN103726703B (en) * | 2013-11-22 | 2016-04-13 | 国家电网公司 | A kind of alternating-current extra-high voltage one-tower double-circuit linear tower |
| CN103944105A (en) * | 2014-05-06 | 2014-07-23 | 国网上海市电力公司 | Pulley hanging point spanning frame with four circuits on same tower |
| CN103956680A (en) * | 2014-05-06 | 2014-07-30 | 国网上海市电力公司 | Safe and reliable crossing frame |
| CN108425537A (en) * | 2016-06-27 | 2018-08-21 | 孙丽君 | A kind of electric force pole tower |
| CN108643675A (en) * | 2016-06-27 | 2018-10-12 | 孙丽君 | A kind of electric force pole tower |
| CN108643674A (en) * | 2016-06-27 | 2018-10-12 | 孙丽君 | A kind of electric force pole tower |
| CN108643674B (en) * | 2016-06-27 | 2020-05-15 | 漳浦新时代农业开发有限公司 | Electric power tower |
| CN108643675B (en) * | 2016-06-27 | 2020-05-19 | 漳浦新时代农业开发有限公司 | Electric power tower |
| CN108425537B (en) * | 2016-06-27 | 2020-06-12 | 烟台知兴知识产权咨询服务有限公司 | Electric power tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140321 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |