CN101451407A - S type power transmission iron tower for DC transmission line - Google Patents
S type power transmission iron tower for DC transmission line Download PDFInfo
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- CN101451407A CN101451407A CN 200710178706 CN200710178706A CN101451407A CN 101451407 A CN101451407 A CN 101451407A CN 200710178706 CN200710178706 CN 200710178706 CN 200710178706 A CN200710178706 A CN 200710178706A CN 101451407 A CN101451407 A CN 101451407A
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- transmission line
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Abstract
The invention provides an S-shaped transmission tower for a direct current transmission line, which comprises a tower body and a tower head. The tower head consists of a lower crank arm, a middle crank arm, an upper crank arm, an upper cross arm and a lower cross arm which are adjacent to each other, as well as a ground wire bracket. The lower crank arm extends towards one side of the tower body, the lower crank arm extends upward to be provided with the middle crank arm, and the lower crank arm extends sideward to be provided with the lower cross arm, and the end part of the lower cross arm is provided with an extending section of the lower cross arm. The middle crank arm extends to be provided with the upper crank, the upper crank arm extends to the other side to be provided with the upper cross arm, and the end part of the upper cross arm is provided with the extending section of the upper cross arm. The lower crank arm and the extending section of the lower cross arm support a V-shaped or L-shaped insulator string to hang an inferior conductor, the upper crank arm and the extending section of the upper cross arm support a V-shaped or L-shaped insulator string to hang a superior conductor, and the inferior conductor and the superior conductor are arranged on both sides of the middle crank arm. The invention which is a linear angle tower is applicable to the small corner of the line, saves the passage, reduces the cutting down of the vegetation, protects environment and reduces the construction cost.
Description
Technical field
The present invention is relevant a kind of transmission facility, particularly is meant the brand-new electric power pylon that a kind of ± 800kV DC power transmission line uses, and refers to the straight line corner transmission iron tower when circuit changes direction especially.
Background technology
At present, China's construction and operation ± the most horizontal dried font electric power pylon of two polar conductors that adopts of 500kV DC power transmission line tangent tower, as shown in Figure 1.In order to realize that China's construction is the strong electrical network of skeleton with the extra-high voltage, state approval is built China ± 800kV DC power transmission line, according to relevant specification and result of the test, ± 800kV DC power transmission line electrical insulation gap ± the 500kV circuit increases more than 60%, if still adopt electric power pylon shown in Figure 1 in the ± 800kV DC power transmission line, will cause the width of corridor of horizontal tangent tower to increase greatly so, so will build to the developed area ± the 800kV DC power transmission line causes the situation of great land resources anxiety.For this reason, a kind of brand-new electric power pylon that can effectively reduce the circuit width of corridor of design is very useful for industry.
Summary of the invention
The object of the present invention is to provide a kind of iron tower of new structure, can effectively reduce the circuit width of corridor, saved natural resource, also reduced difficulty of construction simultaneously, saved the line project cost.
For this reason, the present invention has adopted following technical scheme:
A kind of S type electric power pylon of DC power transmission line, it includes body of the tower and tower head, and it focuses on:
This tower head by adjacent lower bent lever, in crank arm, on crank arm, go up cross-arm and following cross-arm and ground wire support and form; This body of the tower is extended with lower bent lever to a side, and this lower bent lever is cranked arm in extending upward and being provided with, and extends to side to be provided with down cross-arm, and the end of this time cross-arm is provided with down the cross-arm extension; In crank arm to extend to be provided with and crank arm, cranking arm on this to extend to opposite side is provided with cross-arm, end of cross-arm is provided with the cross-arm extension on this;
Lower bent lever and following cross-arm extension are provided with the hanging point that is used for the insulator of polar conductor under the suspension strut, on crank arm and last cross-arm extension is provided with the hanging point that is used for the insulator of polar conductor in the suspension strut, the both sides of cranking arm during this time polar conductor and last polar conductor are arranged in.
The voltage of this DC power transmission line is 800kV.
Wherein, this time polar conductor and the last polar conductor both sides of cranking arm in being arranged in more specifically are meant: the upper left side and the lower right of cranking arm during this time polar conductor and last polar conductor are arranged in.
This insulator string is V-type insulator string or L type insulator string.
S type tower head of the present invention respectively in the both sides (being the diagonally opposing corner direction) of cranking arm use insulator string to hang two polar conductors, overcome in the prior art and ought be applicable under the situation of 800kV DC power transmission line, arranged the wide shortcoming of circuit width of corridor that lead causes in the horizontal direction.The diagonally opposing corner of lead is arranged, and saves the corridor, reduces the felling of vegetation, and the protection environment reduces cost.The S type structure of tower head, lead hanging point multi-scheme are flexibly arranged, promptly are applicable to tangent tower, also are applicable to low-angle angle tower.And, dwindled the size of tower head on width because V-type or L type insulator string have limited the swing of lead, make the width in circuit corridor obtain further compression.
Description of drawings
Fig. 1 is the structural representation of conventional electric power pylon;
Fig. 2 is the main TV structure schematic diagram of the embodiment of the invention one described type power transmission iron tower for DC transmission line;
Fig. 3 is the main TV structure schematic diagram of the embodiment of the invention two described type power transmission iron tower for DC transmission line.
[figure number explanation]
1 body of the tower, 2 lower bent levers
4 times cross-arm extensions of 3 times cross-arms
Crank arm in 5 and crank arm on 6
Cross-arm extension on the cross-arm 8 on 7
Polar conductor left side string on the 9 ground line brackets 10
12 times polar conductor left sides of the right string of polar conductor string on 11
Polar conductor on 13 times right strings 14 of polar conductor
15 times polar conductors
The specific embodiment
For the clear structure of the present invention of your auditor is formed, and the overall operation mode, cooperate graphic being described as follows now:
The embodiment of the invention is described ± and the 800kV type power transmission iron tower for DC transmission line is to be different from a kind of brand-new tower of tower in the past.Its S type structure is used as a kind of ± 800kV DC power transmission line straight line (hold concurrently corner) tower, and the body of the tower of its inclination and three sections are curved cranking arm of bending and swallow formula folding arm cross-arm up and down make electric power pylon integral body S-type.Two polar conductors are staggeredly arranged up and down in the both sides of cranking arm up and down, can effectively reduce the circuit width of corridor, compare through multi-scheme optimization and Technological Economy, develop S type technical scheme of the present invention.
Present invention is described below in conjunction with embodiment and Comparative Examples.
Embodiment one
The embodiment of the invention one is ± 800kV DC power transmission line tangent tower, and as shown in Figure 2, Fig. 2 is the main TV structure schematic diagram of the embodiment of the invention one described type power transmission iron tower for DC transmission line, and whole tower is class S type.Present embodiment includes body of the tower 1, tower head 20 and goes up polar conductor 14, following polar conductor 15, and it focuses on:
This tower head 20 tilts to the left, its by adjacent lower bent lever 2, in crank arm 5, on crank arm 6, go up cross-arm 7, line bracket 9 and following cross-arm 3 form; As shown in Figure 2, this body of the tower 1 is extended with lower bent lever 2 to the right, and this lower bent lever 2 cranks arm 5 in extending upward and being provided with, and extends to side to be provided with down cross-arm 3, and the end of this time cross-arm 3 is provided with down cross-arm extension 4, i.e. Tong Cheng folding arm; By the V-type insulator string, promptly descend the right string 13 of polar conductor, following polar conductor left side string 12 to hang down polar conductor 15 between lower bent lever 2 and the following cross-arm extension 4.In addition, folding arm extension adjustable length.
In crank arm and 5 extend to be provided with to upper left angular direction and crank arm 6, crank arm on this 6 extend to the left be provided with cross-arm 7 and extend upward be provided with line bracket 9, end of cross-arm 7 is provided with cross-arm extension 8 on this; On crank arm 6 and last cross-arm extension 8 between by the V-type insulator string, promptly go up the right string 11 of polar conductor, go up a polar conductor left side and go here and there and 10 hung polar conductor 14,5 the both sides of cranking arm during this time polar conductor 15 and last polar conductor 14 are arranged in.
When extension, cross-arm end folding arm adopts conventional the layout up and down, can hang contour V-type insulator string, make it to be applicable to the circuit straightway.Owing to adopt swallow formula folding arm cross-arm and V-type insulator string, both dwindled the simple horizontal or vertical distance between two polar conductors, limited the lead windage yaw again, effectively reduce iron tower height and cross-arm length, the circuit width of corridor is reduced.
Present embodiment described a kind of ± 800kV DC power transmission line straight line (hold concurrently corner) tower, it comprises the body of the tower of inclination, three sections curved cranking arm of bending and swallow formula folding arm cross-arm and ground line bracket up and down, and two polar conductors are staggeredly arranged up and down in the both sides of cranking arm up and down, whole S-type, wherein:
Tower body inclining, the lower bent lever of deflection opposite side is connected with down cross-arm, and its extension, end is folded to the below, and integral body is swallow formula folding arm shape, and string is hung in lower bent lever and following cross-arm folding arm end about the V-type insulator of following polar conductor; With lower bent lever reverse on crank arm by in crank arm and link to each other with lower bent lever, the last cross-arm of polar conductor is identical with following cross-arm pattern in the suspension, structure oppositely; Level, vertical distance are dwindled between two polar conductors of interlaced arrangement up and down, can effectively reduce the circuit width of corridor.
Comparative Examples
Be illustrated in figure 1 as the structural representation of conventional direct current transportation iron tower.This electric power pylon is conventional dried font tangent tower, and it equally also is made up of body of the tower 1, tower head 20 ' and lead, adopts the V-type insulator string to be connected with two polar conductors.
Comparative examples one and Comparative Examples one as can be seen, the S type straight line electric power pylon of embodiment one and the routine of Comparative Examples one are done font straight line electric power pylon and are compared, the circuit width of corridor can reduce by 23%.
Embodiment two
The embodiment of the invention two is ± 800kV DC power transmission line angle tower that as shown in Figure 3, Fig. 3 is the embodiment of the invention two described type power transmission iron tower for DC transmission line.Embodiment two and embodiment one are basic identical, difference is: on crank arm 6 and last cross-arm extension 8 between, the insulator string that hangs between lower bent lever 2 and the following cross-arm extension 4 is L type insulator string 10,11 and 12,13, its hitch point is not contour, is used for the little corner of circuit thereby the electric power pylon that makes present embodiment two provide can be used as straight-line angle tower.Its principle that reduces the circuit width of corridor is identical with embodiment one with effect.
Present embodiment by changing cross-arm extension up and down length and adjust the hanging point position of going up on the lower bent lever, make it to adapt to L type insulator string and install, can be used for the little corner of circuit.At this moment, exterior angle string hanging point is lower than inboard hanging point, and the interior angle string is stressed greater than the exterior angle string under action of gravity, and the horizontal force that the circuit corner produces makes the exterior angle string stressed greater than the interior angle string, and comprehensive function makes interior angle string, the stressed uniform balance that is tending towards of exterior angle string of L type insulator string.In addition, the windage yaw of L type insulator string is very little, can play the effect that reduces the tower head size, can effectively reduce the circuit width of corridor equally.
According to provided by the invention ± 800kV DC power transmission line straight line (hold concurrently corner) electric computational analysis that tower carried out, the electric-field intensity the bipolar DC link lead under, corona level, radio interference, audible noise, iron tower designing technique etc. all can satisfy and have the rules standard now.
In sum, the present invention satisfies the design specifications requirement, and novel structure is attractive in appearance, iron tower is whole and local structure is reasonable, can effectively reduce the circuit width of corridor, reduce the felling of housing demolition and trees, be specially adapted to the densely populated areas of circuit corridor resource anxiety and Duo Shan, the luxuriant landform of forest.
As mentioned above, the invention provides a preferable novel electric power pylon structure, and relevant application, so offer patent application in accordance with the law; Yet, above implementation and graphic shown in, be this creation preferred embodiment, be not to limit to this creation with this, be with, approximate, identical with the structure of this creation, device, feature etc. such as, all should belong to founding within purpose and the claim of this creation.
Claims (4)
1, a kind of S type electric power pylon of DC power transmission line, it includes body of the tower, tower head, it is characterized in that:
This tower head by adjacent lower bent lever, in crank arm, on crank arm, cross-arm and ground wire support are formed up and down; This body of the tower is extended with lower bent lever to a side, and this lower bent lever is cranked arm in extending upward and being provided with, and extends to side to be provided with down cross-arm, and the end of this time cross-arm is provided with down the cross-arm extension; In crank arm to extend to be provided with and crank arm, cranking arm on this to extend to opposite side is provided with cross-arm, end of cross-arm is provided with the cross-arm extension on this, crank arm on this also extended upward line bracket;
Lower bent lever and following cross-arm extension are provided with the hanging point that is used for the insulator of polar conductor under the suspension strut, on crank arm and last cross-arm extension is provided with the hanging point that is used for the insulator of polar conductor in the suspension strut, the both sides of cranking arm during this time polar conductor and last polar conductor are arranged in.
2, the S type electric power pylon of DC power transmission line as claimed in claim 1, it is characterized in that: the voltage of this DC power transmission line is 800kV.
3, the S type electric power pylon of DC power transmission line as claimed in claim 1 or 2, it is characterized in that: the both sides of cranking arm during this time polar conductor and last polar conductor are arranged in more specifically are meant: the upper left side and the lower right of cranking arm during this time polar conductor and last polar conductor are arranged in.
4, the S type electric power pylon of DC power transmission line as claimed in claim 1 or 2, it is characterized in that: this body of the tower is to lopsidedness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710178706 CN101451407A (en) | 2007-12-04 | 2007-12-04 | S type power transmission iron tower for DC transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710178706 CN101451407A (en) | 2007-12-04 | 2007-12-04 | S type power transmission iron tower for DC transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101451407A true CN101451407A (en) | 2009-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710178706 Pending CN101451407A (en) | 2007-12-04 | 2007-12-04 | S type power transmission iron tower for DC transmission line |
Country Status (1)
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| CN (1) | CN101451407A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046794A (en) * | 2012-12-27 | 2013-04-17 | 国核电力规划设计研究院 | Ultrahigh-voltage direct current crank arm tangent tower |
| CN104863407A (en) * | 2015-05-29 | 2015-08-26 | 中国电力科学研究院 | Repairing tower of power transmission line |
| CN106522639A (en) * | 2016-12-21 | 2017-03-22 | 国网山西电力设计研究院 | Oblique-body iron tower for high-voltage power transmission |
| CN107591767A (en) * | 2017-10-11 | 2018-01-16 | 成都城电电力工程设计有限公司 | A kind of transmission line of electricity leaning tower post drape plot tower |
| CN108691451A (en) * | 2018-07-23 | 2018-10-23 | 中国能源建设集团山西省电力勘测设计院有限公司 | A kind of 500 kilovolts of single time mutually compound cross-arms in electric power pylon side |
| CN112320650A (en) * | 2020-11-18 | 2021-02-05 | 青海送变电工程有限公司 | Method for hoisting ultra-long tubular bus of cable-stayed insulator string |
-
2007
- 2007-12-04 CN CN 200710178706 patent/CN101451407A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046794A (en) * | 2012-12-27 | 2013-04-17 | 国核电力规划设计研究院 | Ultrahigh-voltage direct current crank arm tangent tower |
| CN104863407A (en) * | 2015-05-29 | 2015-08-26 | 中国电力科学研究院 | Repairing tower of power transmission line |
| CN104863407B (en) * | 2015-05-29 | 2018-03-16 | 中国电力科学研究院 | A kind of emergent repairing tower of transmission line of electricity |
| CN106522639A (en) * | 2016-12-21 | 2017-03-22 | 国网山西电力设计研究院 | Oblique-body iron tower for high-voltage power transmission |
| CN107591767A (en) * | 2017-10-11 | 2018-01-16 | 成都城电电力工程设计有限公司 | A kind of transmission line of electricity leaning tower post drape plot tower |
| CN108691451A (en) * | 2018-07-23 | 2018-10-23 | 中国能源建设集团山西省电力勘测设计院有限公司 | A kind of 500 kilovolts of single time mutually compound cross-arms in electric power pylon side |
| CN112320650A (en) * | 2020-11-18 | 2021-02-05 | 青海送变电工程有限公司 | Method for hoisting ultra-long tubular bus of cable-stayed insulator string |
| CN112320650B (en) * | 2020-11-18 | 2022-04-22 | 青海送变电工程有限公司 | Method for hoisting ultra-long tubular bus of cable-stayed insulator string |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Free format text: FORMER OWNER: GUOWANG BEIJING POWER BUILDING ACADEMY Effective date: 20091016 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20091016 Address after: Beijing City, Haidian District Qinghe small Camp Road No. 15 Applicant after: China Electric Power Research Institute Address before: No. 33 South Binhe Road, Beijing, Xuanwu District Applicant before: Beijing Electric Power Construction Research Institute of SGCC |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090610 |