CN111173348A

CN111173348A - Single-circuit 500kV and double-circuit 220kV mixed-voltage large-span terminal branch tower

Info

Publication number: CN111173348A
Application number: CN201911268727.7A
Authority: CN
Inventors: 梁盼望; 唐春林; 杨力; 徐志鸿; 李辉; 何兰宽; 胡蓉; 杜海强; 徐明鸣; 李晶
Original assignee: China Energy Engineering Group Hunan Electric Power Design Institute Co Ltd
Current assignee: China Energy Engineering Group Hunan Electric Power Design Institute Co Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-05-19

Abstract

The utility model provides a single return 500kV and two return 220kV thoughtlessly press big leap terminal branch towers, includes tower head and body of a tower, the tower head is including 500kV tower head I and 220kV tower head II that are located upper end and lower extreme respectively, and tower head I is "worker" style of calligraphy structure, and tower head II is "umbrella" type structure, and tower head is last to be equipped with ground wire and hangs some, wire and the wire jumper hangs some. The invention can be used for constructing a large-span power transmission line, can greatly reduce the floor area, has large transmission capacity of a unit corridor, greatly saves land resources and has great social and economic benefits.

Description

Single-circuit 500kV and double-circuit 220kV mixed-voltage large-span terminal branch tower

Technical Field

The invention relates to a high-voltage iron tower, in particular to a single-circuit 500kV and double-circuit 220kV mixed-voltage large-span terminal branch tower.

Background

With the rapid development of social economy, power users are continuously increased, power transmission lines are also continuously increased, the occupied area of the corridor of the existing power transmission lines is also greatly increased, the land area is limited, the land used for building the corridor of the power transmission lines is increasingly tense, and particularly, the land used for building the power transmission lines spanning the large river and the large river section and spanning the corridor is tense, so that the land becomes a main restriction factor for selecting the path of the power transmission lines.

The existing frequently-occurring 500kV line and 220kV line mixed voltage share a large-span power transmission line corridor, common lines on two sides of the large-span line need to be separately wired, the lines need to be branched, the occupied area is quite large, and quite a lot of difficulties are added to power transmission line path selection.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a single-circuit 500kV and double-circuit 220kV mixed-pressure large-span terminal branch tower which has small floor area and large unit corridor transmission capacity.

The technical scheme adopted by the invention for solving the technical problems is that the single-circuit 500kV and double-circuit 220kV mixed-compression large-span terminal branch tower comprises a tower head and a tower body, wherein the tower head comprises a 500kV tower head I and a 220kV tower head II which are respectively positioned at the upper end and the lower end, the tower head I is in an I-shaped structure, the tower head II is in an umbrella-shaped structure, and a ground wire hanging point, a wire hanging point and a jumper wire hanging point are arranged on the tower head.

Furthermore, the left side and the right side of the top of the tower head I are respectively provided with a left ground wire hanging point and a right ground wire hanging point, and the right side of the top is also provided with a middle phase jumper wire hanging point; the left side of first bottom of tower is equipped with left side wire and hangs some and left side wire jumper and hangs some, and the right side is equipped with right side wire and hangs some and right side wire jumper and hangs some, and first middle part of tower is equipped with well phase conductor and hangs some.

Further, the left side and the right side of the tower head II are provided with four layers of hanging points, the first layer of hanging points are a left branch ground wire hanging point and a right branch ground wire hanging point, the second layer of hanging points is a left loop upper wire hanging point, a left side upper jumper wire hanging point, a right side upper wire hanging point and a right side upper jumper wire hanging point, the third layer of hanging points is a left side middle wire hanging point, a left side middle jumper wire hanging point, a right side middle wire hanging point and a right side middle jumper wire hanging point, and the fourth layer of hanging points is a left side lower wire hanging point, a left side lower jumper wire hanging point, a right side lower wire hanging point and a right side lower jumper wire hanging point.

Furthermore, wire lines of hanging points on two sides of the tower head II are vertically arranged in an upper direction, a middle direction and a lower direction.

Further, the tower head and the tower body are made of steel pipes.

The invention has the following positive effects: the invention can be used for constructing large-span lines, can greatly reduce the occupied area, has large conveying capacity of a unit corridor, can greatly save land resources, and has great social and economic benefits.

Drawings

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

In the figure: 1-500kV tower head I, 11-left side ground wire hanging point, 12-right side ground wire hanging point, 13-left side phase wire hanging point, 131-left side phase wire jumper hanging point, 14-right side phase wire hanging point, 141-right side phase wire jumper hanging point, 15-middle phase wire hanging point and 151-middle phase wire jumper hanging point. 2-220kV tower head II, 21-left side branch ground wire hanging point, 22-right side branch ground wire hanging point, 23-left side loop upper phase wire hanging point, 231-left side loop upper phase wire hanging point, 24-left side loop middle phase wire hanging point, 241-left side loop middle phase wire hanging point, 25-left side loop lower phase wire hanging point, 251-left side loop lower phase wire hanging point, 26-right side loop upper phase wire hanging point, 261-right side loop upper phase wire hanging point, 27-right side loop middle phase wire hanging point, 271-right side loop middle phase wire hanging point, 28-right side loop lower phase wire hanging point, 281-right side loop lower phase wire hanging point, and 3-tower body.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Referring to the attached drawing 1, this embodiment includes tower head and body of a tower 3, and the tower head is including being located 500kV tower head I1 and 220kV tower head II 2 of upper end and lower extreme respectively, and tower head I1 is "worker" style of calligraphy structure, and tower head II 2 is "umbrella" type structure, is equipped with ground wire on the tower head and hangs some, wire jumper and hangs some, for the ease of distinguishing, divides into left side and right side with tower head I1, the both sides region of tower head II 2.

The left side and the right side of the top of the tower head I1 are respectively provided with a left ground wire hanging point 11 and a right ground wire hanging point 12 for hanging ground wires, and the right side of the top is also provided with a middle phase jumper wire hanging point 151; the left side of tower head I1 bottom is equipped with left side wire and hangs point 13 and left side wire jumper and hangs point 131, and the right side is equipped with right side wire and hangs point 14 and right side wire jumper and hangs point 141, and tower head I1 middle part is equipped with well phase conductor and hangs point 15.

The left side phase wire is hung at the left side wire hanging point 13, the left side phase wire is hung at the left side wire hanging point 131, the left side phase wire directly jumps downwards through a transverse direction, the right side phase wire is hung at the right side wire hanging point 14, the right side phase wire is hung at the right side wire hanging point 141, the right side phase wire directly jumps downwards through a transverse direction, the middle phase wire is hung at the middle phase wire hanging point 15, the middle phase wire is hung at the middle phase wire hanging point 151, and the middle phase wire bypasses through the side face of the tower body to jump. The three-phase lead is arranged in a triangle shape, and the tower head is in an I shape.

Four layers of hanging points are arranged on the left side and the right side of the tower head II 2, the first layer of hanging points are a left branch ground wire hanging point 21 and a right branch ground wire hanging point 22, the second layer of hanging points are a left loop upper conductor hanging point 23, a left side upper jumper wire hanging point 231, a right side upper conductor hanging point 26 and a right side upper jumper wire hanging point 261, the third layer of hanging points are a left side middle conductor hanging point 24, a left side middle jumper wire hanging point 241, a right side middle conductor hanging point 27 and a right side middle jumper wire hanging point 271, and the fourth layer of hanging points are a left side lower conductor hanging point 25, a left side lower jumper wire hanging point 251, a right side lower conductor hanging point 28 and a right side lower jumper wire hanging point 281.

The upper wire hanging point 23 on the left side is hung with the upper wire on the left loop, the upper wire hanging point 231 on the left side is hung with the upper wire on the left loop, the upper wire on the left loop is directly jumped through the transverse direction to the lower direction, the middle wire hanging point 24 on the left side is hung with the middle wire on the left loop, the middle wire hanging point 241 on the left side is hung with the middle wire on the left loop, the middle wire in the left loop is directly jumped through the transverse direction to the lower direction, the lower wire hanging point 25 on the left side is hung with the lower wire on the left loop, the lower wire on the left loop is jumped through the transverse direction to the lower direction, the upper wire on the right side is hung with the upper wire on the right loop 261, the upper wire on the right loop is directly jumped through the transverse direction to the lower direction, the middle wire hanging point 27 on the right side is hung with the middle wire, the right lower wire hanging point 28 is hung with a right loop lower wire, the right lower wire hanging point 281 is hung with a right loop lower wire, the right loop lower wire directly jumps downwards by traversing, each loop is vertically arranged in an upper, middle and lower way, the two loops are respectively arranged at two sides of the iron tower, and the tower head is arranged in an umbrella shape.

The tower head I1, the tower head II 2 and the tower body 3 are integrally in a non-shaped structure and are made of steel pipes.

Various modifications and variations of the present invention may be made by those skilled in the art, and they are still within the scope of the present patent invention provided they are within the scope of the claims and their equivalents.

What is not described in detail in the specification is prior art that is well known to those skilled in the art.

Claims

1. The utility model provides a singly return 500kV and two 220kV thoughtlessly press and stride across terminal branch tower greatly, includes tower head and body of a tower, its characterized in that: the tower head comprises a 500kV tower head I and a 220kV tower head II which are respectively positioned at the upper end and the lower end, the tower head I is of an I-shaped structure, the tower head II is of an umbrella-shaped structure, and a ground wire hanging point, a wire hanging point and a jumper wire hanging point are arranged on the tower head.

2. The single-circuit 500kV and double-circuit 220kV mixed-voltage large-span terminal branch tower of claim 1, wherein: the left side and the right side of the top of the tower head I are respectively provided with a left ground wire hanging point and a right ground wire hanging point, and the right side of the top is also provided with a middle phase jumper hanging point; the left side of first bottom of tower is equipped with left side wire and hangs some and left side wire jumper and hangs some, and the right side is equipped with right side wire and hangs some and right side wire jumper and hangs some, and first middle part of tower is equipped with well phase conductor and hangs some.

3. The single-circuit 500kV and double-circuit 220kV mixed-voltage large-span terminal branch tower according to claim 1 or 2, wherein: the second left and right sides of tower head is equipped with four layers of hanging point, and the first layer is left branch ground wire hanging point and right branch ground wire hanging point, and the second floor is last wire hanging point in the left loop, wire jumper hanging point on the left side, wire hanging point on the right side and wire jumper hanging point on the right side, and the third layer is wire hanging point in the left side, wire jumper hanging point in the right side and wire jumper hanging point in the right side, and the fourth layer is wire hanging point under the left side, wire jumper hanging point under the left side, wire hanger point under the right side and wire jumper hanging point under the right side.

4. The single-circuit 500kV and double-circuit 220kV mixed-voltage large-span terminal branch tower of claim 3, wherein: and the wire lines of hanging points on two sides of the tower head II are vertically arranged in an upper, middle and lower mode.

5. The single-circuit 500kV and double-circuit 220kV mixed-voltage large-span terminal branch tower according to claim 1 or 2, wherein: the tower head and the tower body are made of steel pipes.