CN102383639A - Compactly structured pole tower - Google Patents
Compactly structured pole tower Download PDFInfo
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- CN102383639A CN102383639A CN2011102397750A CN201110239775A CN102383639A CN 102383639 A CN102383639 A CN 102383639A CN 2011102397750 A CN2011102397750 A CN 2011102397750A CN 201110239775 A CN201110239775 A CN 201110239775A CN 102383639 A CN102383639 A CN 102383639A
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Abstract
The invention provides a compactly structured pole tower which comprises a tower body, lead wire cross arms and a ground wire cross arm; the ground wire cross arm is arranged on the top of the tower body; the lead wire cross arms are arranged below the ground wire cross arm; and the lead wire cross arms are arranged at two sides of the tower body. The pole tower is characterized in that the lead wire cross arms at the two sides of the pole tower are arranged in a staggering way. As the lead wire cross arms at the two sides of the pole tower are arranged in a staggering way, the horizontal lengths of the lead wire cross arms arranged at the left and right two sides of the pole tower can be shortened on the premise of satisfying the safe distance between the lead wires, namely the space between the adjacent lead wires at the left and right two sides of the tower body and the projection of the lead on the ground is reduced, the width of the required electric power corridor is reduced, and the corridor occupation of the electric power cord is saved; meanwhile, the horizontal lengths of the cross lead cross arms are shortened and materials are saved. The pole tower provided by the invention is particularly suitable for the promotion and use on electric transmission line with a voltage level of 110 kV and above 110 kV.
Description
Technical field
The present invention relates to the shaft tower of transmission line of electricity, particularly a kind of cramped construction shaft tower.
Background technology
Shaft tower is the visual plant of transmission line of electricity, and the shaft tower of present 110kV of China and above electric pressure transmission line of electricity adopts iron tower more, and the same phase conductor of conventional double loop shaft tower is positioned at same level height, and like this, the air gap of two leads is two lead horizontal ranges.
The horizontal range of same level height two leads directly influences the width in transmission line of electricity corridor on the electric power line pole tower.Under the certain situation of weather conditions, the air gap of 110kV and above electric pressure transmission line of electricity must reach certain safe distance, could guarantee that the air between two leads is not breakdown.And the same phase conductor of conventional double loop shaft tower is positioned at same level height, and the width in transmission line of electricity corridor is big, and floor space is big.
The patent No. is a kind of 220 kilovolt of four loop iron tower structure of 200420025908.X; It mainly adopts four loops; It is characterized in that same loop three-phase conducting wire vertical arrangement, the different circuit lead arranges horizontally that on cross-arm four loops are hung on three cross-arms; Lightning conducter is hung three or four, and the utility model is simple in structure, compact, connection and reasonable arrangement; Can make full use of the space, reduce construction costs.
But; The patent No. is a kind of 220 kilovolt of four loop iron tower structure of 200420025908.X; The lead cross-arm of the width in its decision transmission line of electricity corridor is still in same level height; The height of shaft tower is reduced, can not shorten the length of lead cross-arm, just can not practice thrift transmission line of electricity corridor floor space.
The economy of China's fast development is increasing to the demand of electric power; The construction that is accompanied by transmission line of electricity increases fast, because take up an area of in the electric power corridor, expropriation of land, housing demolition expense in the power circuit process of construction is increased year by year; Therefore; How to reduce the electric power width of corridor, save the circuit corridor and take up an area of, to the construction of China's transmission line of electricity with develop significant.
Summary of the invention
The purpose of this invention is to provide a kind of cramped construction shaft tower, use this cramped construction shaft tower can reduce the electric power width of corridor, save the power circuit corridor and take up an area of.
In order to achieve the above object, cramped construction shaft tower of the present invention comprises tower body, lead cross-arm and ground wire cross-arm; The ground wire cross-arm is installed in the tower body top; The lead cross-arm is below the ground wire cross-arm, and the lead cross-arm is installed in the tower body both sides, it is characterized in that: the lead cross-arm of shaft tower both sides is staggered.
Because the lead cross-arm of shaft tower both sides is staggered; Satisfy between the lead safe distance under the prerequisite; Being installed in the shaft tower left and right sides can shorten at the horizontal length of lead cross-arm; Tower body left and right sides adjacent wires and the lead pitch smaller of projection over the ground just, required electric power width of corridor reduces, and saves the power circuit corridor and takes up an area of; Simultaneously, material has also been practiced thrift in the shortening of the horizontal length of lead cross-arm.
Described cramped construction shaft tower is characterized in that: the line of the adjacent two lead cross-arm upper conductor hitch points in the left and right sides and the angle of tower body are 10o～80o.The line of the adjacent two lead cross-arm upper conductor hitch points in the left and right sides and the angle of tower body are excessive, and the electric power width of corridor amplitude that reduces is little; Angle is too small, and the electric power width of corridor amplitude that reduces is big, but under the situation that guarantees minimum terrain clearance, the height of tower body can increase often.
Described cramped construction shaft tower is characterized in that: tower body adopts composite material.Adopt composite material more can guarantee still can satisfy safety requirements after cross-arm length reduces.
Described cramped construction shaft tower is characterized in that: between the lead cross-arm and the tower body outer wall between lead cross-arm and the ground wire cross-arm silicon rubber full skirt is installed.The silicon rubber full skirt is installed, is guaranteed that cross-arm length reduces the back creep age distance and still can satisfy safety requirements.
Cramped construction shaft tower of the present invention uses this cramped construction shaft tower can reduce the electric power width of corridor, saves the power circuit corridor and takes up an area of.
Description of drawings
Fig. 1 is the structural representation that the present invention executes instance.
The specific embodiment
The explanation of Fig. 1 mark: ground wire cross-arm 1, ground wire 2, lead 3, tower body 4, lead cross-arm 5, silicon rubber full skirt 6.
Referring to Fig. 1; The embodiment of cramped construction shaft tower of the present invention comprises tower body 4, lead cross-arm 5 and ground wire cross-arm 1, and ground wire cross-arm 1 is installed in tower body 4 tops, and lead cross-arm 5 is below ground wire cross-arm 1; Lead cross-arm 5 is installed in tower body 4 both sides; The lead cross-arm 5 of shaft tower both sides is staggered, and ground wire 2 is suspended on ground wire cross-arm 1 two ends, and lead 3 is suspended on the lead hitch point of lead cross-arm 5 outer ends.
Because the lead cross-arm 5 of shaft tower both sides is staggered; Satisfy between the lead 3 safe distance under the prerequisite; Being installed in the shaft tower left and right sides can shorten at the horizontal length of lead cross-arm 5; Tower body 4 left and right sides adjacent wires 3 and lead 3 pitch smaller of projection over the ground just, required electric power width of corridor reduces, and saves the circuit corridor and takes up an area of; Simultaneously, material has also been practiced thrift in the shortening of the horizontal length of lead cross-arm 5.
Embodiment is a 110kV transmission line of electricity common-tower double-return composite material pole tower; Tower body 4 adopts composite material, and the line of the left and right sides adjacent two lead cross-arms 5 upper conductors 3 hitch points and the angle of tower body 4 are α=30o, ground wire 2 and upper right phase conductor 3 interelectrode air gap distance D1=4.7m; Ground wire 2 and upper left phase conductor 3 interelectrode air gap distance D2=3m; Tower body 4 both sides leads 3 horizontal range B=3m, alternate vertical air clearance distance C1=3.5m is with phase conductor 3 air gap distance C2=3.5m.Adopt this scheme, each clearance distance of shaft tower satisfies the requirement of 110kV line design, can on electric property, satisfy 110kV circuit service requirement, and lead horizontal projection spacing is compressed to 3m by 3.5m, has reduced the circuit width of corridor.
The line of the left and right sides adjacent two lead cross-arms 5 upper conductors 3 hitch points and the angle of tower body 4 are excessive, and the electric power width of corridor amplitude that reduces is little; Angle is too small, and the electric power width of corridor amplitude that reduces is big, but under the situation that guarantees minimum terrain clearance, the height of tower body 4 can increase often.
Among the embodiment, tower body 4 outer walls between the lead cross-arm 5 and between lead cross-arm 5 and the ground wire cross-arm 1 are installed silicon rubber full skirt 6.Silicon rubber full skirt 6 is installed, is guaranteed that cross-arm length reduces the back creep age distance and still can satisfy safety requirements.
Use cramped construction shaft tower of the present invention can reduce the electric power width of corridor, save the power circuit corridor and take up an area of.The popularization of cramped construction shaft tower of the present invention and utilization, to reduce expropriation of land, economizing the land resource and reducing the transmission line of electricity cost has positive meaning, be particularly suitable on 110kV and above electric pressure transmission line of electricity, promoting the use.
Claims (4)
1. the cramped construction shaft tower comprises tower body, lead cross-arm and ground wire cross-arm, and the ground wire cross-arm is installed in the tower body top, and the lead cross-arm is below the ground wire cross-arm, and the lead cross-arm is installed in the tower body both sides, it is characterized in that: the lead cross-arm of shaft tower both sides is staggered.
2. cramped construction shaft tower according to claim 2 is characterized in that: the line of the adjacent two lead cross-arm upper conductor hitch points in the left and right sides and the angle of tower body are 10o～80o.
3. cramped construction shaft tower according to claim 2 is characterized in that: tower body adopts composite material.
4. cramped construction shaft tower according to claim 2 is characterized in that: between the lead cross-arm and the tower body outer wall between lead cross-arm and the ground wire cross-arm silicon rubber full skirt is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102397750A CN102383639A (en) | 2011-08-19 | 2011-08-19 | Compactly structured pole tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102397750A CN102383639A (en) | 2011-08-19 | 2011-08-19 | Compactly structured pole tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102383639A true CN102383639A (en) | 2012-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102397750A Pending CN102383639A (en) | 2011-08-19 | 2011-08-19 | Compactly structured pole tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN102383639A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422699A (en) * | 2013-01-08 | 2013-12-04 | 辽宁盛方电力设计有限公司 | Electric transmission line tower made of composite materials |
| CN104141405A (en) * | 2013-11-15 | 2014-11-12 | 国家电网公司 | Overhead junction pole for two-circuit overhead transmission line and line junction structure of overhead junction pole |
| CN108952303A (en) * | 2018-08-30 | 2018-12-07 | 中国能源建设集团陕西省电力设计院有限公司 | A kind of compound cross-arm narrow base tower in the double loop 330kV |
Citations (10)
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|---|---|---|---|---|
| WO1995008684A1 (en) * | 1993-09-24 | 1995-03-30 | Johnson David W | Tower constructed of pultruded composites |
| UA14279U (en) * | 2005-10-21 | 2006-05-15 | Univ Kherson Nat Technical | Intermediate support of high voltage power transmission line |
| CN201074417Y (en) * | 2007-08-03 | 2008-06-18 | 山东齐星铁塔科技股份有限公司 | Tower for two-loop common tower circuit of 220kV and 100kV |
| CN201406865Y (en) * | 2009-04-20 | 2010-02-17 | 辽河石油勘探局 | 66KV overhead transmission line double-circuit horizontal crossing tower |
| CN101672124A (en) * | 2009-09-25 | 2010-03-17 | 国网电力科学研究院 | Compound material pole tower |
| CN101882775A (en) * | 2009-09-08 | 2010-11-10 | 国网电力科学研究院 | Composite material pole tower outside vertical grounding led-down method and pole tower thereof |
| CN201649767U (en) * | 2009-09-02 | 2010-11-24 | 南通市神马电力科技有限公司 | Compound insulating tower for power transmission line |
| CN201786071U (en) * | 2010-04-25 | 2011-04-06 | 山东祥冠铁塔制造有限公司 | Single-circuit T connecting steel pipe tower |
| CN201908471U (en) * | 2010-12-30 | 2011-07-27 | 四川电力设计咨询有限责任公司 | Tangent tower for electric transmission line |
| CN202227763U (en) * | 2011-08-19 | 2012-05-23 | 国网电力科学研究院 | Tower in compact structure |
-
2011
- 2011-08-19 CN CN2011102397750A patent/CN102383639A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995008684A1 (en) * | 1993-09-24 | 1995-03-30 | Johnson David W | Tower constructed of pultruded composites |
| UA14279U (en) * | 2005-10-21 | 2006-05-15 | Univ Kherson Nat Technical | Intermediate support of high voltage power transmission line |
| CN201074417Y (en) * | 2007-08-03 | 2008-06-18 | 山东齐星铁塔科技股份有限公司 | Tower for two-loop common tower circuit of 220kV and 100kV |
| CN201406865Y (en) * | 2009-04-20 | 2010-02-17 | 辽河石油勘探局 | 66KV overhead transmission line double-circuit horizontal crossing tower |
| CN201649767U (en) * | 2009-09-02 | 2010-11-24 | 南通市神马电力科技有限公司 | Compound insulating tower for power transmission line |
| CN101882775A (en) * | 2009-09-08 | 2010-11-10 | 国网电力科学研究院 | Composite material pole tower outside vertical grounding led-down method and pole tower thereof |
| CN101672124A (en) * | 2009-09-25 | 2010-03-17 | 国网电力科学研究院 | Compound material pole tower |
| CN201786071U (en) * | 2010-04-25 | 2011-04-06 | 山东祥冠铁塔制造有限公司 | Single-circuit T connecting steel pipe tower |
| CN201908471U (en) * | 2010-12-30 | 2011-07-27 | 四川电力设计咨询有限责任公司 | Tangent tower for electric transmission line |
| CN202227763U (en) * | 2011-08-19 | 2012-05-23 | 国网电力科学研究院 | Tower in compact structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422699A (en) * | 2013-01-08 | 2013-12-04 | 辽宁盛方电力设计有限公司 | Electric transmission line tower made of composite materials |
| CN104141405A (en) * | 2013-11-15 | 2014-11-12 | 国家电网公司 | Overhead junction pole for two-circuit overhead transmission line and line junction structure of overhead junction pole |
| CN108952303A (en) * | 2018-08-30 | 2018-12-07 | 中国能源建设集团陕西省电力设计院有限公司 | A kind of compound cross-arm narrow base tower in the double loop 330kV |
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Application publication date: 20120321 |