CN1979988B - Common-tower double-return compact type corner transmission iron tower - Google Patents
Common-tower double-return compact type corner transmission iron tower Download PDFInfo
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- CN1979988B CN1979988B CN200510130031A CN200510130031A CN1979988B CN 1979988 B CN1979988 B CN 1979988B CN 200510130031 A CN200510130031 A CN 200510130031A CN 200510130031 A CN200510130031 A CN 200510130031A CN 1979988 B CN1979988 B CN 1979988B
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Abstract
All new type of corner electric power pylon different from drum type pylon can realize 100% purpose for building compact type transmission line with dual loop in same pylon. Cooperating to compact type straight-line pylon, the corner pylon arranges conducting wires in del shape, and space between wires in three phases being same as straight-line pylon. The corner pylon includes three layers of cross arm: earth wire, upper conductor, and lower conductor. Three layers of cross arm are distributed on two sides of pylon and in same vertical plane. The cross arm of upper conductor is in use for suspending conductor in two phases; and the cross arm of lower conductor is in use for suspending conductor in lower phase. Small cross arms are added on cross arms of earth wire and upper conductor in order to solve issue of wire jumper. Features are: shrunken size of pylon head, shorter 12.0m than height of general type, light weight and raised capability of lightning proof.
Description
Technical field
The relevant a kind of transmission facility of the present invention refers to the brand-new electric power pylon that a kind of 500 kilovolts of same tower double back transmission lines use especially.
Background technology
At present, the corner transmission iron tower of 500 kilovolts of same tower double back transmission lines uses of China is the conventional tower that the three-phase conducting wire vertical arrangement hangs over the iron tower both sides.The height of iron tower will reach 60m～70m usually, the average 22m in shared circuit corridor.
As shown in Figure 1, be existing conventional common-tower double-return 500kV circuit corner iron tower, exhale as 27.0m to claim high tower overall height 57.0m, single basic tower weight 56.0t, 4 * 400 leads are vertical arrangement, and root is opened 15.0m * 15.0m, takes up an area of 225.0m2.In addition, conventional 500kV common-tower double-return of China and frame transmission line angle tower should not use on 500kV common-tower double-return and frame compact transmission line at present.As using conventional corner tower then can make the local rising of line conductor obstinately, lightning withstand level reduces, the original intention that neither build compact transmission line.
Summary of the invention
The object of the present invention is to provide a kind of iron tower of new structure, its be implemented on the 500kV same tower double back transmission line 100% apply the compact technology of transmission of electricity; Realize comprehensive reduction engineering construction investment, improve circuit nature transmission power, reduce the electromagnetic effect to environment, the purpose of raising line lightning resisting level.
In addition, 500kV common-tower double-return compact type circuit corner iron tower of the present invention, to cooperate with tower compact tangent tower with two times, arrangements of conductors is arranged also will be del, the three-phase conducting wire phase spacing cooperates also identical with tangent tower, so have only 6.0m between the two layer conductor cross-arms, several tights, how solving the wire jumper problem is the two problems that mainly need solve of returning with tower compact type corner tower type selecting of patent of the present invention.
For this reason, the present invention has adopted following technical scheme:
A kind of common-tower double-return compact type corner transmission iron tower, its use that matches with the straight line compact type tower, include body of the tower, tower head and lead, it focuses on: this tower head comprises three layers of cross-arm, it is followed successively by ground wire cross-arm, upper conductor cross-arm from top to bottom, reaches the lower wire cross-arm, and be symmetrically distributed in the body of the tower both sides and on same vertical plane, the both sides that two return wires are arranged in body of the tower are inverted triangle and arrange; This upper conductor cross-arm is used to hang two phase conductors, and this lower wire cross-arm is used to hang down phase conductor; The lower wire wire jumper is realized wire jumper according to the conventional line pattern, the lower wire cross-arm extends 1.0m and hangs 1 wire jumper string, the swing of control wire jumper, upper conductor cross-arm outboard wire wire jumper need be avoided lower wire cross-arm earth electrode, upper conductor cross-arm inboard wire wire jumper, need upwards to carry out wire jumper by the ground wire cross-arm, old place line cross-arm is arranged on apart from the high position of upper conductor cross-arm 12.0m, to satisfy the electric clearance requirement of wire jumper to upper conductor cross-arm and body of the tower; Along each extends the little cross-arm of wire jumper that 6.0m forms the ground wire cross-arm again before and after the line direction, respectively hang 1 wire jumper string in this ground wire cross-arm 8.0m place, thereby realize the wire jumper of upper conductor cross-arm inboard wire at the two ends and the middle part of the little cross-arm of this wire jumper.
4.0m is extended at these upper conductor cross-arm two ends, each extends the little cross-arm of wire jumper that about 2.0m forms the upper conductor cross-arm again along the line direction front and back extending the end, respectively hangs 1 wire jumper string at the little cross-arm of this wire jumper two ends, with the wire jumper of control upper conductor cross-arm outboard wire.
This iron tower height is between 40m-50m; Shared circuit corridor average out to 24m.
The two of the present invention and the common usefulness of engineering return with the contrast of tower drum type tower, and as long as the height of iron tower is usually 40m～50m, than conventional type short 12.0m; And improved anti-damage to crops caused by thunder ability, and be example with 0-30 ° of angle tower, after to each controlling dimension optimal design of full tower, single basic tower weight has reduced by 23% than conventional drum type tower; The iron tower root is opened occupation of land and has also been lacked 30% than conventional line.
Description of drawings
Fig. 1 is the structural representation of conventional electric power pylon;
Fig. 2 is the structural representation of compact electric power pylon of the present invention;
Fig. 3 is a practical application schematic diagram of the present invention.
[figure number explanation]
1 body of the tower, 2 tower heads
The little cross-arm of wire jumper of 21 ground wire cross-arms, 211,212 ground wire cross-arms
The little horizontal stroke of wire jumper of 22 upper conductor cross-arms, 221,222 upper conductor cross-arms
Load
23 lower wire cross-arms, 24 wire jumper strings
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:
Conventional 500kV common-tower double-return of China and frame transmission line angle tower should not use on 500kV common-tower double-return and frame compact transmission line at present.As using conventional corner tower then can make the local rising of line conductor obstinately, lightning withstand level reduces, the original intention that neither build compact transmission line.500kV of the present invention is two to return with tower compact type corner tower, is to be different from two in the past a kind of brand-new towers that return with tower drum type tower, can realize that 100% builds the purpose of common-tower double-return compact type transmission line.
Common-tower double-return compact type corner tower of the present invention will cooperate with tower compact tangent tower with two times, arrangements of conductors is arranged also will be del, it is also identical with tangent tower that the three-phase conducting wire phase spacing cooperates, overall structure as shown in Figure 2: it includes body of the tower 1, tower head 2 and lead.This tower head 2 comprises three layers of cross-arm, it is followed successively by ground wire cross-arm 21, upper conductor cross-arm 22 from top to bottom, reaches lower wire cross-arm 23, and be symmetrically distributed in body of the tower 1 both sides and on same vertical plane, the both sides that two return wires are arranged in body of the tower 1 are inverted triangle and arrange; This upper conductor cross-arm 22 is used to hang two phase conductors, and this lower wire cross-arm 23 is used to hang down phase conductor.
Since have only 6.0m between the upper and lower two layer conductor cross-arms 22,23, several tights, and how can solve the wire jumper problem when dwindling the tower head size again then is a problem that mainly needs solution of the present invention.
Because dwindling of three-phase conducting wire phase spacing, last two phase conductors hang on one deck cross-arm, lower wire hangs over separately on one deck cross-arm, several tights between the two-layer cross-arm. for solving the lead wire jumper, lower wire wire jumper circuit pattern is routinely realized wire jumper, only lower wire cross-arm 23 is extended 1.0m and hang 1 wire jumper string, swing with the control wire jumper. upper conductor cross-arm 22 outboard wire wire jumpers need be avoided lower wire cross-arm 23 earth electrodes, so need to extend about 4.0m from upper conductor cross-arm 22, extending the end along each extends about 2.0m again before and after the line direction, form the little cross-arm 221 of wire jumper, 222, respectively hang 1 wire jumper string at its two ends, swing with the control wire jumper. and upper conductor cross-arm 22 inboard wire wire jumpers, then need upwards carry out wire jumper by ground wire cross-arm 21, so need ground wire cross-arm 21 is arranged on apart from the high position of upper conductor cross-arm 12.0m, to satisfy the requirement of wire jumper to upper conductor cross-arm and body of the tower electric clearance, form the little cross-arm 212 of wire jumper at ground wire cross-arm 8.0m place along respectively extending 6.0m before and after the line direction again, respectively hang 1 wire jumper string at this wire jumper little cross-arm 212 two ends and middle part, locus and swing with the control wire jumper. this ground wire cross-arm is arranged on apart from the high position of upper conductor cross-arm 12.0m, to satisfy the requirement of wire jumper to upper conductor cross-arm and body of the tower electric clearance.
Less because of gyration for the SCJ51 angle tower, bilateral symmetry is arranged.And SCJ52, SCJ53 lead wire jumper mode are identical with SCJ51, upper conductor cross-arm interior angle side just, and the lead wire jumper need not be provided with the little cross-arm of wire jumper that extends along line direction.
500kV common-tower double-return compact type tangent tower of the present invention and the contrast of conventional common-tower double-return angle tower, except that complicated these characteristics of wire jumper, the tower overall height than conventional type short 12.0m, improved anti-damage to crops caused by thunder ability, with 0-30 ° of angle tower is example, after to each controlling dimension optimal design of full tower, single basic tower weight has reduced by 23% than conventional drum type tower; The iron tower root is opened occupation of land and has also been lacked 30% than conventional line.Shown in the table specific as follows:
| Compact | Conventional type |
| 6 * 240 leads are del and arrange. | 4 * 400 leads are vertical arrangement |
| Have only 6.0m between the two layer conductor cross-arms, last two phase conductor wire jumper limits will be established mutually along the line jumpers cross-arm, and last two-phase then will be upwards by the ground wire cross-arm, and adds along the line jumpers cross-arm, and wire jumper is complexity. | The three-phase conducting wire wire jumper is easy |
| Claim high tower overall height 45.0m 27.0m exhale, than conventional type short 12.0m | Claim high tower overall height 57.0m the 12.0m that gathered the type height 27.0m exhale |
| Single basic tower weight 42.99t | Single basic tower weight 56.0t |
| Root is opened 12.56m * 12.56m, takes up an area of 157.7m 2 | Root is opened 15.0m * 15.0m, takes up an area of 225.0m 2 |
Two the returning of 500kV on November 29 calendar year 2001 formally opened examination with tower and frame compact SCJ51 angle tower, comprises strong wind overload 150% to November 30 calendar year 2001, and whole 13 operating condition of test pass through smoothly, and its practical situations as shown in Figure 3.
Use patent tower of the present invention, can be implemented on the 500kV same tower double back transmission line 100% apply the compact technology of transmission of electricity.Realize comprehensive reduction engineering construction investment, improve circuit nature transmission power, reduce the electromagnetic effect to environment, the purpose of raising line lightning resisting level.
As mentioned above, the invention provides a preferable novel electric power pylon structure, and relevant application, so offer the application of patent of invention 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. common-tower double-return compact type corner transmission iron tower, its use that matches with the straight line compact type tower, include body of the tower, tower head and lead, it is characterized in that: this tower head comprises three layers of cross-arm, it is followed successively by ground wire cross-arm, upper conductor cross-arm from top to bottom, reaches the lower wire cross-arm, and be symmetrically distributed in the body of the tower both sides and on same vertical plane, the both sides that two return wires are arranged in body of the tower are inverted triangle and arrange; This upper conductor cross-arm is used to hang two phase conductors, and this lower wire cross-arm is used to hang down phase conductor; The lower wire wire jumper is realized wire jumper according to the conventional line pattern, the lower wire cross-arm extends 1.0m and hangs 1 wire jumper string, the swing of control wire jumper, upper conductor cross-arm outboard wire wire jumper need be avoided lower wire cross-arm earth electrode, upper conductor cross-arm inboard wire wire jumper, need upwards to carry out wire jumper by the ground wire cross-arm, old place line cross-arm is arranged on apart from the high position of upper conductor cross-arm 12.0m, to satisfy the electric clearance requirement of wire jumper to upper conductor cross-arm and body of the tower.
2. common-tower double-return compact type corner transmission iron tower as claimed in claim 1, each extends the little cross-arm of wire jumper that 6.0m forms the ground wire cross-arm again along the line direction front and back in this ground wire cross-arm 8.0m place, two ends and middle part at the little cross-arm of this wire jumper respectively hang 1 wire jumper string, thereby realize the wire jumper of upper conductor cross-arm inboard wire.
3. common-tower double-return compact type corner transmission iron tower as claimed in claim 2, wherein these upper conductor cross-arm two ends are extended 4.0m, are being extended the end along each extends the little cross-arm of wire jumper that about 2.0m forms the upper conductor cross-arm again before and after the line direction, respectively hang 1 wire jumper string at the little cross-arm of this wire jumper two ends, with the wire jumper of control upper conductor cross-arm outboard wire.
4. common-tower double-return compact type corner transmission iron tower as claimed in claim 1, wherein this iron tower height is between 40m-50m; Shared circuit corridor average out to 24m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510130031A CN1979988B (en) | 2005-12-08 | 2005-12-08 | Common-tower double-return compact type corner transmission iron tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510130031A CN1979988B (en) | 2005-12-08 | 2005-12-08 | Common-tower double-return compact type corner transmission iron tower |
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| CN1979988A CN1979988A (en) | 2007-06-13 |
| CN1979988B true CN1979988B (en) | 2010-05-05 |
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| CN200510130031A Active CN1979988B (en) | 2005-12-08 | 2005-12-08 | Common-tower double-return compact type corner transmission iron tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669972A (en) * | 2013-11-26 | 2014-03-26 | 国家电网公司 | Tower head structure of electricity strain tower |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232164B (en) * | 2008-01-31 | 2010-08-11 | 云南电力试验研究院（集团）有限公司电力研究院 | High altitude 500kV compact type electric power line |
| CN101824930B (en) * | 2009-03-05 | 2011-06-22 | 福建省厦门电业局 | Operation method of live iron tower for 10kV double circuit line on the same tower |
| CN101672124B (en) * | 2009-09-25 | 2011-06-15 | 国网电力科学研究院 | Compound material pole tower |
| CN101964505B (en) * | 2010-09-30 | 2012-06-06 | 中国电力工程顾问集团中南电力设计院 | Strain tower with shape like Chinese character 'gan' of compact transmission line |
| CN112796560A (en) * | 2021-01-27 | 2021-05-14 | 中国电力工程顾问集团华北电力设计院有限公司 | 500kV line strain iron tower with 180-degree corner |
| CN112780094A (en) * | 2021-01-27 | 2021-05-11 | 湖南科鑫电力设计有限公司 | 500kV double-loop compact strain tower |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6026627A (en) * | 1995-09-01 | 2000-02-22 | Fwt, Inc. | Antenna support for power transmission tower |
| CN2409273Y (en) * | 1999-12-27 | 2000-12-06 | 云南电力集团有限公司超高压输变电建设处 | Power line straight corner tower |
| CN2635825Y (en) * | 2003-08-13 | 2004-08-25 | 鞍山铁塔开发研制中心 | Multi-circuit integrally installed iron tower for power line |
| CN2691130Y (en) * | 2004-03-29 | 2005-04-06 | 江苏省电力公司无锡供电公司 | 220 Kv four loop iron tower structure |
-
2005
- 2005-12-08 CN CN200510130031A patent/CN1979988B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6026627A (en) * | 1995-09-01 | 2000-02-22 | Fwt, Inc. | Antenna support for power transmission tower |
| CN2409273Y (en) * | 1999-12-27 | 2000-12-06 | 云南电力集团有限公司超高压输变电建设处 | Power line straight corner tower |
| CN2635825Y (en) * | 2003-08-13 | 2004-08-25 | 鞍山铁塔开发研制中心 | Multi-circuit integrally installed iron tower for power line |
| CN2691130Y (en) * | 2004-03-29 | 2005-04-06 | 江苏省电力公司无锡供电公司 | 220 Kv four loop iron tower structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669972A (en) * | 2013-11-26 | 2014-03-26 | 国家电网公司 | Tower head structure of electricity strain tower |
| CN103669972B (en) * | 2013-11-26 | 2016-02-10 | 国家电网公司 | A kind of tower head structure of electricity strain tower |
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| Publication number | Publication date |
|---|---|
| CN1979988A (en) | 2007-06-13 |
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Owner name: NORTH CHINA ELECTRIC POWER DESIGN INSTITUTE ENGINE Free format text: FORMER OWNER: NORTH CHINA POWER ENGINEERING(BEIJING) CO.,LTD. Effective date: 20100504 |
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Effective date of registration: 20100504 Address after: 100120 Beijing city Xicheng District Street No. 24 Applicant after: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation Address before: 100011 Beijing city Xicheng District Street No. 24 Applicant before: North-China Power Engineering (Beijing) Co., Ltd. |
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Owner name: CHINA POWER ENGINEERING CONSULTING GROUP NORTH CHI Free format text: FORMER NAME: NORTH CHINA ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
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Address after: 100120 Beijing city Xicheng District Street No. 24 Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 100120 Beijing city Xicheng District Street No. 24 Patentee before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation |