CN214615752U

CN214615752U - Linear 500kV double-loop drilling and crossing tower

Info

Publication number: CN214615752U
Application number: CN202120090290.9U
Authority: CN
Inventors: 鲍松; 钱程; 吴睿; 张树林; 杨超; 张君宇; 朱博; 牛林华; 孟凯
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: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-11-05
Anticipated expiration: 2031-01-13

Abstract

The utility model relates to a two return circuits of style of calligraphy 500kV bore tower more, including tower head and body of the tower, the height of tower head is 6.5 meters, set up one deck wire cross arm on the tower head, be equipped with the left ground wire support that the top slope set up left on the left wire cross arm of tower head, be equipped with the right ground wire support that the top slope set up right on the right wire cross arm of tower head, be equipped with left ground wire on left side ground wire support and the right ground wire support respectively and hang the point and the right ground wire hangs the point, the top of tower head still is equipped with two middle ground wires and hangs the point, it hangs the point to be equipped with the wire respectively the symmetry on left side wire cross arm and the right ground wire cross arm, left side wire cross arm and right ground wire cross arm, left side ground wire support and right ground wire support, left side ground wire hangs point and right ground wire and hangs the point and equally divide other symmetry setting. According to the above technical scheme, the utility model discloses a reduce the tower head height, can avoid newly-built 500kV two return circuit to tear open into two single return circuit or to building to be bored more power line and rise and reform transform the scheduling problem, have great society and economic benefits.

Description

Linear 500kV double-loop drilling and crossing tower

Technical Field

The utility model relates to a transmission line shaft tower field, concretely relates to tower is crossed to a style of calligraphy 500kV double circuit brill.

Background

With the continuous development of economy and the continuous deepening of industrialization degree in China, the demand of energy in China will be further increased in the future. In recent years, electric power systems, especially ultrahigh voltage and extra-high voltage power grids, in China are increasingly developed, and a large number of crossed alternating current and direct current lines are caused. The 500kV line needs to be drilled when being crossed with the extra-high voltage power line in a newly-built process, but a 500kV drilling and crossing channel is not reserved in the extra-high voltage construction process, the 500kV line is generally high, drilling and crossing points of the 500kV line and the extra-high voltage line are difficult to select, and the drilling and crossing difficulty is high. Considering that the extra-high voltage line is high in manufacturing cost, limited by terrain, difficult in power failure and other influence factors, raising and modifying the extra-high voltage line is generally not advisable, and therefore, how to plan a special drilling tower with a small tower head height becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a style of calligraphy 500kV two-circuit bores tower more, and this bores tower more and has reduced and bore the degree of difficulty more to avoided tearing two single-circuit lines into with newly-built 500kV two-circuit line or to building to bore power line more and rise the transformation scheduling problem, had great society and economic benefits.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the tower comprises a tower head and a tower body, wherein the height of the tower head is 6.5 meters, a layer of wire cross arm is arranged on the tower head, a left ground wire support which is obliquely arranged leftwards and upwards is arranged on the left wire cross arm of the tower head, a right ground wire support which is obliquely arranged rightwards and upwards is arranged on the right wire cross arm of the tower head, a left ground wire hanging point and a right ground wire hanging point are respectively arranged on the left ground wire support and the right ground wire support, two middle ground wire hanging points are further arranged at the top of the tower head, wire hanging points are respectively symmetrically arranged on the left wire cross arm and the right wire cross arm, and the left wire cross arm and the right wire cross arm, the left ground wire support and the right ground wire support, the left ground wire hanging point and the right ground wire hanging point are respectively symmetrically arranged.

The wire hanging point comprises an inner wire hanging point, a middle wire hanging point and an outer wire hanging point, the distance between the inner wire hanging point and the center of the tower head is 6.5 meters, the distance between the middle wire hanging point and the inner wire hanging point is 8.0 meters, and the distance between the outer wire hanging point and the middle wire hanging point is 8.0 meters.

The vertical distance between the left ground wire hanging point and the wire hanging point on the left wire cross arm is 6 meters, and the distance between the left ground wire hanging point and the right ground wire hanging point is 50 meters.

The left wire cross arm and the right wire cross arm are respectively provided with a plurality of jumper wire hanging holes, jumper wire strings connected with the jumper wire hanging holes are duplex I-shaped insulator strings, a squirrel cage is arranged on the jumper wire strings, and the length of the squirrel cage is 8 meters.

Four groups of weight plates are hung on each squirrel cage, and each group of weight plates has the weight of 60 KG.

According to the above technical scheme, the utility model discloses a reduce the tower head height, can avoid newly-built 500kV two return circuit to tear open into two single return circuit or to building to be bored more power line and rise and reform transform the scheduling problem, have great society and economic benefits.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in figure 1, a straight 500kV double-loop crossing tower comprises a tower head 1 and a tower body 2, wherein the height of the tower head 1 is 6.5 m, a layer of conducting wire cross arm is arranged on the tower head 1, the conducting wire cross arm is composed of a left conducting wire cross arm 11 and a right conducting wire cross arm 13, the left conducting wire cross arm 11 and the right conducting wire cross arm 13 are positioned on the same horizontal plane and integrally form a single-layer structure, a left earth wire support 12 obliquely arranged towards the left upper side is arranged on the left conducting wire cross arm 11 of the tower head, a right earth wire support 14 obliquely arranged towards the right upper side is arranged on the right conducting wire cross arm 13 of the tower head 1, a left earth wire hanging point 15 and a right earth wire hanging point 16 are respectively arranged on the left earth wire support 12 and the right earth wire support 14, two middle earth wire hanging points 17 are also arranged on the top of the tower head 1, conducting wire cross arm 11 and the right conducting wire cross arm 13 are respectively and symmetrically provided with conducting wire hanging points, the left conducting wire cross arm 11 and the right conducting wire cross arm 13, the left earth wire support 12 and the right earth wire support 14, The left ground wire hanging point 15 and the right ground wire hanging point 16 are respectively symmetrically arranged. Namely, the 6-phase wires of the 500kV double-loop crossing tower are horizontally arranged in a straight line shape, the whole tower head 1 is only provided with one layer of wire cross arm and one layer of ground wire support, the height of the tower head 1 is compressed into 6.5 meters from 30 meters of a conventional tower, and the total height of the crossing tower is greatly reduced.

Further, the wire hanging points comprise an inner wire hanging point 3, a middle wire hanging point 4 and an outer wire hanging point 5, the distance between the inner wire hanging point 3 and the center of the tower head 1 is 6.5 meters, the distance between the middle wire hanging point 4 and the inner wire hanging point 3 is 8.0 meters, and the distance between the outer wire hanging point 5 and the middle wire hanging point 4 is 8.0 meters. Namely, under the condition of meeting the requirement of the electric clearance, the horizontal distance between the leads of each phase is compressed, the distance between the inner lead hanging point 3 and the center of the tower head 1 is 6.5 meters, the distance between the middle lead hanging point 4 and the inner lead hanging point 3 is 8.0 meters, the distance between the outer lead hanging point 5 and the middle lead hanging point 4 is 8.0 meters, the left lead cross arm 11 and the right lead cross arm 13 are equal in length, and the force of the centering is 22.5 meters.

Further, the vertical distance between the left ground wire hanging point 15 and the wire hanging point on the left wire cross arm 11 is 6 meters, and the distance between the left ground wire hanging point 15 and the right ground wire hanging point 16 is 50 meters.

Furthermore, a plurality of jumper hanging holes are respectively formed in the left lead cross arm 11 and the right lead cross arm 13, the jumper strings connected with the jumper hanging holes are duplex I-shaped insulator strings, a mouse cage is arranged on the jumper strings, the length of the mouse cage is 8 meters, the wind deflection angle of the jumper can be restrained, and the width of the cross arm is reduced. Four groups of weight plates are hung on each squirrel cage, and each group of weight plates has the weight of 60 KG.

The utility model discloses when using, the corner number of degrees should not exceed 40 degrees to can suitably adjust the height and the width of ground wire support according to ground flash density and lightning protection requirement.

To sum up, adopt the utility model discloses a bore tower more, can accomplish newly-built 500kV circuit more easily and bore more to having the circuit, avoided tearing into newly-built 500kV with tower two return circuits line and bored into two single circuits and to have more brought land and invade to account for, the adverse effect such as investment increase, power failure difficulty, avoided rising to reform transform that extra-high voltage circuit brought adverse effect such as investment increase, power failure difficulty, still be favorable to the path optimization of newly-built circuit.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a tower is crossed to a style of calligraphy 500kV double circuit, its characterized in that: comprises a tower head (1) and a tower body (2), wherein the height of the tower head (1) is 6.5 meters, a layer of wire cross arm is arranged on the tower head (1), a left ground wire bracket (12) which is obliquely arranged towards the left upper part is arranged on a left wire cross arm (11) of the tower head (1), a right ground wire bracket (14) which is obliquely arranged towards the right upper part is arranged on a right wire cross arm (13) of the tower head (1), a left ground wire hanging point (15) and a right ground wire hanging point (16) are respectively arranged on the left ground wire bracket (12) and the right ground wire bracket (14), the top of the tower head (1) is also provided with two middle ground wire hanging points (17), the left wire cross arm (11) and the right wire cross arm (13) are respectively provided with wire hanging points symmetrically, the left wire cross arm (11) and the right wire cross arm (13), the left ground wire support (12) and the right ground wire support (14), the left ground wire hanging point (15) and the right ground wire hanging point (16) are respectively and symmetrically arranged.

2. The inline 500kV double-circuit drilling tower as claimed in claim 1, wherein: the wire hang the point including inboard wire hang point (3), middle wire hang point (4) and outside wire hang point (5), the distance between inboard wire hang point (3) and tower head (1) center is 6.5 meters, the distance between middle wire hang point (4) and inboard wire hang point (3) is 8.0 meters, the distance between outside wire hang point (5) and middle wire hang point (4) is 8.0 meters.

3. The inline 500kV double-circuit drilling tower as claimed in claim 1, wherein: the vertical distance between the left ground wire hanging point (15) and the wire hanging point on the left wire cross arm (11) is 6 meters, and the distance between the left ground wire hanging point (15) and the right ground wire hanging point (16) is 50 meters.

4. The inline 500kV double-circuit drilling tower as claimed in claim 1, wherein: the left wire cross arm (11) and the right wire cross arm (13) are respectively provided with a plurality of jumper wire hanging holes, jumper wire strings connected with the jumper wire hanging holes are duplex I-shaped insulator strings, a squirrel cage is arranged on the jumper wire strings, and the length of the squirrel cage is 8 meters.

5. The inline 500kV double-circuit drilling tower as claimed in claim 4, wherein: four groups of weight plates are hung on each squirrel cage, and each group of weight plates has the weight of 60 KG.