CN202227763U - Tower in compact structure - Google Patents

Tower in compact structure Download PDF

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Publication number
CN202227763U
CN202227763U CN2011203042506U CN201120304250U CN202227763U CN 202227763 U CN202227763 U CN 202227763U CN 2011203042506 U CN2011203042506 U CN 2011203042506U CN 201120304250 U CN201120304250 U CN 201120304250U CN 202227763 U CN202227763 U CN 202227763U
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CN
China
Prior art keywords
arm
tower
cross
tower body
lead
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011203042506U
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Chinese (zh)
Inventor
刘庭
胡毅
刘凯
肖宾
彭勇
吴田
刘艳
苏梓铭
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State Grid Electric Power Research Institute
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State Grid Electric Power Research Institute
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Filing date
Publication date
Application filed by State Grid Electric Power Research Institute filed Critical State Grid Electric Power Research Institute
Priority to CN2011203042506U priority Critical patent/CN202227763U/en
Application granted granted Critical
Publication of CN202227763U publication Critical patent/CN202227763U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a tower in a compact structure, which comprises a tower body, conductor cross arms and an earth wire cross arm, wherein the earth wire cross arm is arranged at the top of the tower body; the conductor cross arms are located below the earth wire cross arm and arranged on the two sides of the tower body; and the tower is characterized in that the conductor cross arms on the two sides of the tower are arranged in a staggered manner. Since the conductor cross arms on the two sides of the tower are arranged in a staggered manner, on the premise that the safety distances between conductors are satisfied, the horizontal lengths of the conductor cross arms arranged on the left side and the right side of the tower can be shortened, that is, the projection spacings of the conductors and the adjacent conductors that are arranged on the left side and the right side of the tower body on the ground are decreased, the required power corridor width is decreased, and the power line corridor covering area is saved; in addition, since the horizontal lengths of the conductor cross arms are shortened, materials are saved. The tower is especially suitable for being popularized and applied to power transmission lines with voltage class of at least 110kV.

Description

The cramped construction shaft tower
Technical field
The utility model 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 the utility model provides a kind of cramped construction shaft tower, 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.
In order to achieve the above object; The cramped construction shaft tower of the utility model; Comprise tower body, lead cross-arm and ground wire cross-arm, the ground wire cross-arm is installed in the tower body top, and the lead cross-arm is below the ground wire cross-arm; 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.
The cramped construction shaft tower of the utility model 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 utility model is executed 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 the cramped construction shaft tower of the utility model 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 the cramped construction shaft tower of the utility model can reduce the electric power width of corridor, save the power circuit corridor and take up an area of.The popularization and the utilization of the utility model cramped construction shaft tower, 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.
CN2011203042506U 2011-08-19 2011-08-19 Tower in compact structure Expired - Lifetime CN202227763U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203042506U CN202227763U (en) 2011-08-19 2011-08-19 Tower in compact structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203042506U CN202227763U (en) 2011-08-19 2011-08-19 Tower in compact structure

Publications (1)

Publication Number Publication Date
CN202227763U true CN202227763U (en) 2012-05-23

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CN2011203042506U Expired - Lifetime CN202227763U (en) 2011-08-19 2011-08-19 Tower in compact structure

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CN (1) CN202227763U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102383639A (en) * 2011-08-19 2012-03-21 国网电力科学研究院 Compactly structured pole tower
CN108598888A (en) * 2018-06-14 2018-09-28 安徽华电工程咨询设计有限公司 A kind of single loop cable pivoted frame sky enters the station special pole

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102383639A (en) * 2011-08-19 2012-03-21 国网电力科学研究院 Compactly structured pole tower
CN108598888A (en) * 2018-06-14 2018-09-28 安徽华电工程咨询设计有限公司 A kind of single loop cable pivoted frame sky enters the station special pole

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20120523

CX01 Expiry of patent term