CN203441149U

CN203441149U - Double-loop triangle straight line steel pipe pole tower

Info

Publication number: CN203441149U
Application number: CN201320418762.4U
Authority: CN
Inventors: 王卫; 禹玉祥; 孟宪乔; 黄健; 叶超; 金淼; 郑向锋; 谢枫; 喻春笋
Original assignee: China Energy Engineering Group Anhui Electric Power Design Institute Co Ltd
Current assignee: China Energy Engineering Group Anhui Electric Power Design Institute Co Ltd
Priority date: 2013-07-15
Filing date: 2013-07-15
Publication date: 2014-02-19
Anticipated expiration: 2023-07-15

Abstract

The utility model discloses a double-loop triangle straight line steel pipe pole tower and relates to the technical field of high-voltage transmission lines. The double-loop triangle straight line steel pipe pole tower comprises a pole tower, a ground wire cross arm and a leading wire cross arm. A tower head at the upper end portion of the pole tower is provided with two layers of cross arms, namely the ground wire cross arm and the leading wire cross arm. Two ground wire suspension insulator strings and two leading wire V-shaped suspension insulator strings are arranged on the ground wire cross arm. Four leading wire V-shaped suspension insulator strings are evenly distributed on the leading wire cross arm. The ground wire cross arm is provided with grounding wires and one-phase leading wires through the ground wire suspension insulator strings and the leading wire V-shaped suspension insulator strings. The leading wire cross arm is provided with two-phase leading wires through the leading wire V-shaped suspension insulator strings. According to the double-loop triangle straight line steel pipe pole tower, the grounding wire cross arm is provided with the one-phase leading wires, the leading wire cross arm is provided with the two-phase leading wires, the head size of the pole tower is compressed, the pole tower overall height is reduced, and pole tower steel material consumption amount is reduced.

Description

A kind of double loop triangle straight steel pipe rod tower

Technical field

The utility model relates to ultra-high-tension power transmission line technical field, is specifically related to a kind of double loop triangle straight steel pipe rod tower.

Background technology

The electric power line pole tower of existing wire triangular arrangement adopts the arrangement of three layers of cross-arm mostly, i.e. two layer conductor cross-arms and one deck ground wire cross-arm, and topping wire cross-arm is arranged a phase conductor, lower layer conductor cross-arm is arranged two phase conductors.This shaft tower feature is as follows: shaft tower overall height and width of corridor are moderate, be applicable to the region that great majority bore the condition of getting over anxiety and shaft tower height had to particular restriction, but also there is following shortcoming: wire phase spacing increases, shaft tower head is three layers of cross-arm, tower head size is larger, shaft tower overall height is higher, is difficult to meet the requirement of specific region (as airport) to shaft tower height.If Fig. 1 is shaft tower of the prior art, by tower body, ground wire cross-arm, upper conductor cross-arm, lower wire cross-arm, ground wire suspension insulator and wire suspension insulator, formed.Ground insulator string is arranged in ground wire cross arm end, and wire insulation substring is arranged in respectively below upper and lower two layer conductor cross-arms.This conventional arrangement just can not meet the requirement of specific region to shaft tower height.

Utility model content

For above-mentioned problems of the prior art, the purpose of this utility model is to propose a kind of double loop triangle straight steel pipe rod tower, and wire phase spacing is less, and tower head size is less, shaft tower overall height is relatively low, can meet the requirement of specific region (as airport) to shaft tower height.

The utility model solves the technical scheme that its technical problem adopts: a kind of double loop triangle straight steel pipe rod tower, comprise tower body, ground wire cross-arm and wire cross-arm, the tower head of described tower body upper end is established ground wire cross-arm and the two-layer cross-arm of wire cross-arm, arranges two ground wire suspension insulators and two wire V-arrangement suspension insulators on described ground wire cross-arm; Uniform four wire V-arrangement suspension insulators on described wire cross-arm; Described ground wire cross-arm is arranged ground wire and a phase conductor through ground wire suspension insulator and wire V-arrangement suspension insulator, and described wire cross-arm is arranged two phase conductors through wire V-arrangement suspension insulator.

Described ground wire suspension insulator is arranged in described ground wire cross-arm two ends, respectively arranges a wire V-arrangement suspension insulator on the ground wire cross-arm of the inner side of ground wire suspension insulator.

as shown from the above technical solution:adopt two-layer cross-arm, ground wire and upper phase conductor are arranged in same layer ground wire cross-arm, and wire cross-arm is arranged two phase conductors, has compressed tower head size; Wire suspension string adopts V-arrangement suspension string, has suppressed insulator string windage yaw.Reduce shaft tower overall height, can meet the requirement of specific region to shaft tower height, and reduced shaft tower steel consumption.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.

Fig. 1 is transmission line tower structure schematic diagram of the prior art;

In Fig. 1: 1a, tower body, 2a, ground wire cross-arm, 3a, upper conductor cross-arm, 4a, lower wire cross-arm, 5a, ground wire suspension insulator, 6a, wire suspension insulator.

Fig. 2 is the utility model structural representation.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further illustrated.

As shown in Figure 2, the utility model comprises shaft tower 1, ground wire cross-arm 2, wire cross-arm 3, wire V-arrangement insulator string 4, ground wire suspension insulator 5.The upper end tower head of shaft tower 1 is established ground wire cross-arm 2 and the two-layer cross-arm of wire cross-arm 3.On ground wire cross-arm 2, arrange two ground wire suspension insulators 5 and two wire V-arrangement suspension insulators 4, wherein ground wire suspension insulator is arranged in described ground wire cross-arm two ends, respectively arranges a wire V-arrangement suspension insulator on the inner side ground wire cross-arm of ground wire suspension insulator.Uniform four wire V-arrangement suspension insulators 4 on wire cross-arm 3; Ground wire cross-arm 2 is arranged ground wire and a phase conductor through ground wire suspension insulator and wire V-arrangement suspension insulator.Wire cross-arm 3 is arranged two phase conductors through wire V-arrangement suspension insulator.The drift angle scope of wire V-arrangement suspension insulator is 80o-140o.

The utility model adopts ground wire and upper conductor cross-arm arrangement altogether, utilize V-arrangement insulator string to be arranged in ground wire cross-arm inner side upper conductor hanging point, utilize V-arrangement insulator string to be suspended on wire cross-arm by horizontal mode two phase conductors, three-phase conducting wire is by triangular arrangement.Ground wire is arranged in ground wire cross arm end by ground wire suspension insulator 5.

The utility model utilizes ground wire and the common cross-arm arrangement of upper conductor to solve conventional wires triangular arrangement needs two layer conductor cross-arms could meet the arrangement of three-phase conducting wire electric clearance requirement, when saving a layer conductor cross-arm, compressed shaft tower head dimensions.Meanwhile, utilize V-arrangement insulator string that three-phase conducting wire is fixed, reduced the vertical distance of ground wire cross-arm and wire cross-arm.Can meet the special areas such as airport and shaft tower be exhaled to the requirement of high restriction.

Above are only embodiment of the present utility model, to one skilled in the art, the utility model has multiple change and variation.Allly within invention thought of the present utility model and principle, make any modification, be equal to replacement, improve etc., within all should being included in protection domain of the present utility model.

Claims

1. a double loop triangle straight steel pipe rod tower, comprise shaft tower, ground wire cross-arm and wire cross-arm, it is characterized in that: the upper end tower head of described shaft tower is established ground wire cross-arm and the two-layer cross-arm of wire cross-arm, on described ground wire cross-arm, arrange two ground wire suspension insulators and two wire V-arrangement suspension insulators; Uniform four wire V-arrangement suspension insulators on described wire cross-arm; Two ground wire suspension insulators on described ground wire cross-arm are arranged ground wire, and two wire V-arrangement suspension insulators on ground wire cross-arm are arranged a phase conductor; Described wire cross-arm is arranged two phase conductors through wire V-arrangement suspension insulator.

2. double loop according to claim 1 triangle straight steel pipe rod tower, it is characterized in that: described ground wire suspension insulator is arranged in described ground wire cross-arm two ends, on the inner side ground wire cross-arm of ground wire suspension insulator, respectively arrange a wire V-arrangement suspension insulator.