CN104196301A

CN104196301A - Novel crossed transposition tower

Info

Publication number: CN104196301A
Application number: CN201410393106.2A
Authority: CN
Inventors: 赵晖; 王力; 于永洋; 罗正帮; 谢涛; 李卫国; 陈黎明; 许谨; 程金松; 李晓黎; 刘传健; 王向阳; 张�浩; 郑少将; 周转; 陈彦焰
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-08-06
Filing date: 2014-08-06
Publication date: 2014-12-10
Anticipated expiration: 2034-08-06
Also published as: CN104196301B

Abstract

The invention relates to the technical field of high-voltage transmission lines, in particular to a novel crossed transposition tower. The novel crossed transposition tower comprises a tower body. A T-type earth wire cross arm is arranged at the top end of the tower body, upper layer wire cross arms shaped like an inverted Chinese character 'xia' are arranged below the earth wire cross arm, and lower layer wire cross arms shaped like a Chinese character 'shang' are arranged below the upper layer wire cross arms shaped like the inverted Chinese character 'xia'. Each upper layer wire cross arm shaped like the inverted Chinese character 'xia' is composed of upper cross arm bodies on the two sides of the tower body and a lower cross arm body on the left of the tower body, and each lower layer wire cross arm shaped like the Chinese character 'shang' is composed of an upper cross arm body on the right of the tower body and lower cross arm bodies on the two sides of the tower body. According to the novel crossed transposition tower, the arrangement mode of the lower layer wire cross arms shaped like the Chinese character 'shang' and the upper layer wire cross arms shaped like the inverted Chinese character 'xia' is adopted, the wire cross arms are reasonably utilized, the service conditions of the tower are lowered, the height of a tower head is reduced by about 25%, project investment is saved, the cross arms are symmetrical, the overall structure is more stable, occupied area is reduced, and influence caused by the position of the tower is little; due to the T-type earth wire cross arm, while the lightning protection range is guaranteed, earth wires are prevented from being crossed, and thus the size of the tower head is further reduced.

Description

A kind of novel crossed transposition tower

Technical field:

Patent of the present invention relates to ultra-high-tension power transmission line technical field, relates in particular to a kind of novel crossed transposition tower.

Background technology:

The conventional system scheme that current single back transmission line cut-offs is: by single loop cut-off form double-circuit line access Yi Ge transformer station or altogether after one section, tower access be arranged in the wherein transformer station an of the same side, loop line road, owing to being subject to the impact of actual transformer station position, the double-circuit line that cut-offs rear formation need access and be arranged in the not transformer station of homonymy of institute's hanging wire road, and this just need to realize coordinated transposition after line disconnection.

Conventional line coordinated transposition mode after existing single loop cut-offs mainly contains following two kinds:

1) adopt base four branch of a circuit towers, utilize the another side of the cross-arm of one side of the cross-arm of upper three layers of branch tower and lower three layers, access is positioned at the not circuit of homonymy of cross-arm respectively, after realizing single back line and cut-offfing coordinated transposition, but four loop angle steel tower tower heads are higher, and cannot make full use of all cross-arms of four branch of a circuit towers, have the situation of waste tower material, and cross-arm is asymmetric, tower resistance to overturning is poor.

2) adopt a base single loop anchor support to make behind another loop line road of a loop line road scissors crossing, access a base double loop branch tower, realize the coordinated transposition after line disconnection, this mode has increased the material of a Ji Ta, and floor space is large, be not suitable for vertical tower limited location area.

Patent of invention content:

The object of patent of the present invention is to propose a kind of novel crossed transposition tower, the coordinated transposition problem after this novel shaft tower can solve single back line and cut-offs, and again without adopting two Ji Ta, and tower head is lower, and tower material consumption is low.

In order to solve the problem existing in background technology, technical scheme of the present invention is: it comprises tower body, tower body top is provided with " T " font ground wire cross-arm, ground wire cross-arm below is provided with anti-D score font topping wire cross-arm, anti-D score font topping wire cross-arm below be provided with " on " layer conductor cross-arm under font, described anti-D score font topping wire cross-arm is comprised of the lower cross-arm in the upper cross-arm of tower body both sides and tower body left side, described " on " layer conductor cross-arm is comprised of the upper cross-arm on tower body right side and the lower cross-arm of tower body both sides under font.

The upper cross-arm of described anti-D score font topping wire cross-arm, lower cross-arm and " on " upper cross-arm, lower cross-arm end under font on layer conductor cross-arm can install wire jumper support and strain insulator-string.

Described " T " font ground wire cross-arm is one deck three limit cross-arm structures, and wherein on one side towards breaking point, another both sides are perpendicular to ground wire direction of advance.

Described each wire jumper support below hangs with jumper string.

This novel crossed transposition tower has the following advantages:

(1) cut-offfing scheme one with routine compares, it is stressed that the present invention takes into full account shaft tower, adopt " on " layer conductor cross-arm and anti-D score font topping wire cross-arm tower head arrangement under font, rationally utilize wire cross-arm, reduced the service condition of shaft tower, reduce approximately 25% tower head height, reduced by 6 monolateral wire cross-arms, saved construction investment, cross-arm is more symmetrical, and overall structure is more stable.

(2) cut-off scheme two with routine and compare, the present invention has reduced the input of a base shaft tower, has reduced floor space, is subject to vertical tower position influence little.

(3) design of " T " font ground wire cross-arm, when guaranteeing lightning protection, avoids ground wire to intersect, and has further compressed tower head size.

Accompanying drawing explanation:

Fig. 1 is structural representation of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is wiring schematic diagram of the present invention.

The specific embodiment:

With reference to Fig. 1-2, a kind of novel crossed transposition tower, it comprises tower body 1, tower body 1 top is provided with " T " font ground wire cross-arm 4, ground wire cross-arm 4 belows are provided with anti-D score font topping wire cross-arm 2, anti-D score font topping wire cross-arm 2 belows be provided with " on " layer conductor cross-arm 3 under font, described anti-D score font topping wire cross-arm 2 is comprised of the upper cross-arm of tower body both sides and the lower cross-arm in tower body left side, described " on " layer conductor cross-arm 3 is comprised of the upper cross-arm on tower body right side and the lower cross-arm of tower body both sides under font, the upper cross-arm of anti-D score font topping wire cross-arm 2, lower cross-arm and " on " upper cross-arm under font on layer conductor cross-arm 3, lower cross-arm end all can be installed wire jumper support 5 and strain insulator-string, each wire jumper support 5 below hangs with jumper string 6, described " T " font ground wire cross-arm 4 is one deck three limit cross-arm structures, wherein on one side towards breaking point, another both sides are perpendicular to ground wire direction of advance.

With reference to Fig. 3, Fig. 3 is wiring schematic diagram of the present invention, the present invention utilizes the strain insulator-string 7 access right side single back lines on anti-D score font topping wire cross-arm 2, after cut-offfing, form the left side wire of double-circuit line, utilize " on " strain insulator-string 7 access left side single back lines under font on layer conductor cross-arm 3, after cut-offfing, form the right side wire of double-circuit line, and access next base double, the left and right sides wire that the present invention cut-offs rear formation by single back line is adjusted to opposite side from a side, thereby realizes the coordinated transposition of both sides wire.

The present invention is arranged on tower body left side by establishing by the lower cross-arm of anti-D score font topping wire cross-arm 2, by " on " the upper cross-arm of layer conductor cross-arm 3 is arranged on tower body right side under font, make to keep between levels wire cross-arm enough electric equipment compartment distances, and can install wire jumper support 5 and jumper string 6 additional in conjunction with actual needs, guarantee that both sides wire meets the needs of wire and shaft tower electric clearance, meeting under the condition of the stressed and electric clearance of shaft tower like this, only by a Ji Ta, solved the coordinated transposition problem of the wire after single back line cut-offs, reduced tower head size, reduced the tower material consumption in conventional coordinated transposition tower simultaneously, solved the poor shortcoming of economy, in addition the upper cross-arm of anti-D score font topping wire cross-arm and " on " the equal both sides of the lower cross-arm of layer conductor cross-arm are symmetrical under font, and the lower cross-arm of anti-D score font topping wire cross-arm and " on " the upper cross-arm position of layer conductor cross-arm is nearer under font, after both cancel out each other to the active force of tower body, stability influence to tower body is less, make the overall structure of tower body more stable.

The present invention utilizes coordinated transposition tower " T " font ground wire cross-arm 4 three limit cross-arms to access respectively ground wire; wherein the cross-arm towards breaking point connects single-circuit inner side, both sides ground wire; another both sides connect respectively single-circuit outside, both sides ground wire perpendicular to the cross-arm of ground wire direction of advance; and by adjusting the length of " T " font ground wire cross-arm, guarantee the lightning protection of wire; avoid ground wire to intersect, further compressed tower head size.

Claims

1. a novel crossed transposition tower, it is characterized in that, it comprises tower body, tower body top is provided with " T " font ground wire cross-arm, ground wire cross-arm below is provided with anti-D score font topping wire cross-arm, anti-D score font topping wire cross-arm below be provided with " on " layer conductor cross-arm under font, described anti-D score font topping wire cross-arm is comprised of the lower cross-arm in the upper cross-arm of tower body both sides and tower body left side, described " on " layer conductor cross-arm is comprised of the upper cross-arm on tower body right side and the lower cross-arm of tower body both sides under font.

2. coordinated transposition tower according to claim 1, is characterized in that, the upper cross-arm of described anti-D score font topping wire cross-arm, lower cross-arm and " on " upper cross-arm, lower cross-arm end under font on layer conductor cross-arm can install wire jumper support and strain insulator-string.

3. coordinated transposition tower according to claim 1, is characterized in that, described " T " font ground wire cross-arm is one deck three limit cross-arm structures, and wherein on one side towards breaking point, another both sides are perpendicular to ground wire direction of advance.

4. coordinated transposition tower according to claim 2, is characterized in that, described each wire jumper support below hangs with jumper string.