Single-loop strain steel pipe pole for reducing width of line corridor

Abstract

The utility model relates to a single-loop strain steel pipe pole for reducing the width of a line corridor. The steel pipe pole comprises a pole body, the ground wire cross arm is arranged on the pole top; the three-phase jumper wire supports are vertically arranged on the rod body; the upper-phase wire hanging point and the lower-phase wire hanging point are arranged on the rod body, and the middle-phase wire hanging point is arranged at the root of the middle-phase jumper wire support; and the three-phase jumper wire hanging point is arranged at the end part of the jumper wire bracket. Compared with triangular arrangement wiring of a traditional single-loop steel pipe pole, the steel pipe pole has the advantages that the line can form vertical arrangement wiring through the steel pipe pole, the width of a wire corridor can be reduced from 10 m of the triangular arrangement steel pipe pole to about 1 m, the problem that the safety distance is insufficient due to the fact that the line corridor is wide can be solved, line corridor planning is facilitated, and the working efficiency is improved. Influences such as house demolition work and near live-line work are reduced, and obvious social and economic effects are achieved. Meanwhile, the F-shaped steel pipe pole is reasonable in hanging line arrangement and simple in structure and force transmission path, the influence of loads on the structure is reduced, and the project investment is reduced to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe poles for power transmission lines, in particular to a single-circuit tension steel pipe pole for narrowing the width of a line corridor. Background Art

[0002] With the continuous development of my country's economy, the construction of power grids has developed rapidly. At the same time, due to the development of urbanization and industrialization in my country, more and more high-voltage overhead lines pass through urban areas and industrial parks where land resources are scarce. In these places with tight land resources, traditional angle steel towers occupy a large area due to the large foundation root opening. Therefore, in current engineering construction, they are increasingly replaced by steel pipe poles with smaller footprints.

[0003] At present, the general single-circuit steel pole adopts a triangular arrangement of conductors. Although the tower height of this arrangement is small and economical, the line occupies a large corridor width. Due to the wide corridor, in crowded buildings and high-voltage line dense areas, the conductors are often too close to the buildings or existing lines, which creates a great safety hazard and restricts engineering construction.

[0004] Therefore, there is an urgent need for a single-loop tension steel tube pole for narrowing the line corridor width, so as to reduce the width of the steel tube pole line corridor and meet the needs of engineering construction. Summary of the invention

[0005] The utility model aims to provide a single-loop tension steel pipe pole for narrowing the width of a line corridor, which can solve the deficiencies in the prior art, reduce the width of the steel pipe pole line corridor, and meet the needs of engineering construction.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A single-circuit tension steel pipe pole for narrowing the width of a line corridor, the steel pipe pole comprising:

[0008] Shaft;

[0009] A ground wire cross arm is arranged on the top of the pole body;

[0010] A three-phase jumper bracket, the three-phase jumper bracket comprising an upper phase jumper bracket, a middle phase jumper bracket and a lower phase jumper bracket which are sequentially arranged on the rod body from top to bottom;

[0011] A ground wire hanging point is arranged at the end of the ground wire cross arm;

[0012] Three-phase conductor hanging points, the three-phase conductor hanging points include an upper phase conductor hanging point, a middle phase conductor hanging point and a lower phase conductor hanging point; the upper phase conductor hanging point and the lower phase conductor hanging point are both arranged on the pole body, and the heights of the two hanging points are respectively the same as the heights of the upper phase jumper bracket and the lower phase jumper bracket; the middle phase conductor hanging point is arranged at the root of the middle phase jumper bracket;

[0013] The three-phase jumper hanging point comprises an upper phase jumper hanging point arranged at the end of the upper phase jumper bracket, a middle phase jumper hanging point arranged at the end of the middle phase jumper bracket, and a lower phase jumper hanging point arranged at the end of the lower phase jumper bracket.

[0014] Preferably, according to the utility model, the ground wire cross arm and the jumper bracket are both located on one side of the rod body, and on the same side of the rod body.

[0015] Preferably, according to the utility model, the pole body, the ground wire cross arm and the three-phase jumper bracket are all steel pipe components, and each section is connected by a flange and bolts.

[0016] Preferably, according to the utility model, the three-phase conductors are connected to the upper phase conductor hanging point, the middle phase conductor hanging point and the lower phase conductor hanging point and the upper phase jumper hanging point, the middle phase jumper hanging point and the lower phase jumper hanging point to form a vertically arranged routing.

[0017] Preferably, according to the present utility model, the upper phase conductor hanging point and the lower phase conductor hanging point are located on the pole body, and the horizontal spacing therebetween is 0.

[0018] Preferably, according to the utility model, the middle phase conductor hanging point is arranged at the root of the middle phase jumper bracket; the horizontal distance between the middle phase conductor hanging point and the upper phase conductor hanging point and the lower phase conductor hanging point meets the minimum horizontal offset requirement between adjacent conductors in the transmission line design specification.

[0019] According to the preferred embodiment of the utility model, the upper phase conductor hanging point and the lower phase conductor hanging point are holes opened on the annular welding plate connecting the flange at the steel pipe rod and the cross arm as hanging points. Specifically, the upper phase conductor hanging point and the lower phase conductor hanging point have the same structure, both including an annular welding plate; the annular welding plate is provided with a hanging hole and a construction hole; and a conductor cross arm flange is provided on one side of the annular welding plate.

[0020] Preferably, according to the present invention, a plurality of stiffening plates are further provided on the annular welding plate.

[0021] Compared with the prior art, the advantages of the utility model are:

[0022] The steel tube pole of the utility model reduces the width of the line corridor to the maximum extent. Taking the 220 kV voltage level as an example, the width of the conductor corridor of the conventional triangle-arranged single-circuit steel tube pole is generally more than 10m, while the width of the conductor corridor of the steel tube pole of the utility model is only about 1m. Since the width of the line corridor is extremely small, the problem of insufficient safety distance caused by the wide line corridor can be solved. At the same time, more path plans can be adopted during line planning, and the impact of house and building demolition, adjacent live body operations, etc. is reduced, the economy and safety are greatly improved, and the social and economic benefits are obvious. At the same time, the F-type steel tube pole has a reasonable hanging line layout, a simple structure and force transmission path, which reduces the impact of load on the structure and minimizes the project investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a single-circuit tension steel pipe pole used for narrowing the width of a line corridor in the utility model;

[0024] Figure 2 It is a structural schematic diagram of an upper phase conductor hanging point and a lower phase conductor hanging point in the utility model.

[0025] in:

[0026] 1. Pole body, 2. Ground wire crossarm, 3-1. Upper phase jumper bracket, 3-2. Middle phase jumper bracket, 3-3. Lower phase jumper bracket, 4. Ground wire hanging point, 5-1. Upper phase conductor hanging point, 5-2. Middle phase conductor hanging point, 5-3. Lower phase conductor hanging point, 6-1. Upper phase jumper hanging point, 6-2. Middle phase jumper hanging point, 6-3. Lower phase jumper hanging point, 7. Annular welding plate, 7-1. Hanging hole, 7-2. Construction hole, 7-3. Stiffening plate, 8. Conductor crossarm flange. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] like Figure 1 A single-loop tension steel pipe pole for narrowing the width of a line corridor is shown, and the steel pipe pole comprises: a pole body 1, a ground wire cross arm 2, a three-phase jumper bracket, a ground wire hanging point 4, a three-phase conductor hanging point 5 and a three-phase jumper hanging point 6.

[0029] Specifically, the pole body 1, the ground wire cross arm 2, and the three-phase jumper bracket are all steel pipe components. The ground wire cross arm 2 is arranged at the top of the pole body 1. The three-phase jumper bracket includes an upper phase jumper bracket 3-1, a middle phase jumper bracket 3-2, and a lower phase jumper bracket 3-3 which are arranged on the pole body 1 from top to bottom. The ground wire cross arm 2 is provided with a ground wire hanging point 4 at the end. The pole body 1 is provided with an upper phase conductor hanging point 5-1 and a lower phase conductor hanging point 5-3, and the heights of the upper phase conductor hanging point 5-1 and the lower phase conductor hanging point 5-3 are the same as those of the upper phase jumper bracket 3-1 and the lower phase jumper bracket 3-3. The root of the middle phase jumper bracket 3-2 is provided with a middle phase conductor hanging point 5-2. An upper phase jumper hanging point 6-1 is provided at the end of the upper phase jumper bracket 3-1; a middle phase jumper hanging point 6-2 is provided at the end of the middle phase jumper bracket 3-2; and a lower phase jumper hanging point 6-3 is provided at the end of the lower phase jumper bracket 3-3.

[0030] like Figure 2 As shown, the upper phase conductor hanging point 5-1 and the lower phase conductor hanging point 5-3 are both made of holes opened on the annular welding plate connecting the flange at the steel pipe pole and the cross arm as hanging points. The upper phase conductor hanging point 5-1 and the lower phase conductor hanging point 5-3 have the same structure, both including an annular welding plate 7; the annular welding plate 7 is provided with a hanging hole 7-1 and a construction hole 7-2; a conductor cross arm flange 8 is provided on one side of the annular welding plate 7. The annular welding plate 7 is also provided with a plurality of stiffening plates 7-3. The conductor hanging hole is provided on the annular welding plate connecting the flange at the steel pipe pole and the cross arm.

[0031] Starting from the design source, the utility model considers arranging the conductors vertically, optimizing the steel tube pole hanging line layout and force transmission path, and designs a new type of single-circuit steel tube pole to narrow the line corridor. Compared with the traditional single-circuit steel tube pole triangular arrangement routing, the line can form a vertical arrangement routing through the steel tube pole, and the conductor corridor width can be narrowed from 10 m of the triangular arrangement steel tube pole to about 1 m, which can solve the problem of insufficient safety distance caused by the wide line corridor, is conducive to the planning of the line corridor, reduces the impact of house demolition operations and adjacent live operations, and has obvious social and economic effects. At the same time, the F-type steel tube pole has a reasonable hanging line layout, a simple structure and force transmission path, reduces the impact of load on the structure, and minimizes the project investment.

[0032] The working principle of the above-mentioned single-circuit tension steel tube pole used to narrow the width of the line corridor is:

[0033] The single-circuit tension steel pipe pole for narrowing the width of the line corridor described in the utility model comprises: a pole body 1; a ground wire cross arm 2, arranged at the top of the pole body 1; a three-phase jumper bracket, arranged vertically on the pole body 1; an upper phase conductor hanging point 5-1 and a lower phase conductor hanging point 5-3, arranged on the pole body 1, a middle phase conductor hanging point 5-2, arranged at the root of the middle phase jumper bracket 3-2; a three-phase jumper hanging point, arranged at the end of the three-phase jumper bracket. The ground wire or optical cable is suspended at the ground wire hanging point 4 on the ground wire cross arm 2 through a hardware string. The upper phase conductor is suspended at the upper phase conductor hanging point 5-1 through an insulator string and a hardware string, and then connected to the upper phase jumper hanging point 6-1 through a jumper insulator string and hardware to achieve upper phase conductor bypassing. The middle phase conductor is suspended at the middle phase conductor hanging point 5-2 through an insulator string and a hardware string, and then connected to the middle phase jumper hanging point 6-2 through a jumper insulator string and hardware string to achieve the middle phase conductor jumper. The lower phase conductor is suspended at the lower phase conductor hanging point 5-3 through an insulator string and a hardware string, and then connected to the lower phase jumper hanging point 6-3 through a jumper insulator string and hardware string to achieve the lower phase conductor jumper.

[0034] Compared with the traditional single-circuit steel tube pole triangular arrangement, the line can form a vertical arrangement through the steel tube pole, and the conductor corridor width can be narrowed from more than 10 m of the triangular arrangement steel tube pole to about 1 m, which can solve the problem of insufficient safety distance caused by the wide line corridor, is conducive to line corridor planning, reduces the impact of house demolition operations and adjacent live operations, and has obvious social and economic effects. At the same time, the F-type steel tube pole has a reasonable hanging line layout, simple structure and force transmission path, reduces the impact of load on the structure, and minimizes the project investment.

[0035] The above-described embodiments are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A single-circuit tension steel pipe pole for narrowing the width of a line corridor, characterized in that: The steel tube pole includes: Shaft (1); A ground wire cross arm (2) is arranged on the top of the rod body (1); A three-phase jumper bracket, the three-phase jumper bracket comprising an upper phase jumper bracket (3-1), a middle phase jumper bracket (3-2) and a lower phase jumper bracket (3-3) which are arranged on the rod body (1) in sequence from top to bottom; A ground wire hanging point (4) is arranged at the end of the ground wire cross arm (2); Three-phase conductor hanging points, the three-phase conductor hanging points comprising an upper phase conductor hanging point (5-1), a middle phase conductor hanging point (5-2) and a lower phase conductor hanging point (5-3); the upper phase conductor hanging point (5-1) and the lower phase conductor hanging point (5-3) are both arranged on a pole body (1), and the heights of the two hanging points are respectively the same as the heights of an upper phase jumper bracket (3-1) and a lower phase jumper bracket (3-3); the middle phase conductor hanging point (5-2) is arranged at the root of the middle phase jumper bracket (3-2); A three-phase jumper hanging point, the three-phase jumper hanging point comprising an upper phase jumper hanging point (6-1) arranged at the end of the upper phase jumper bracket (3-1), a middle phase jumper hanging point (6-2) arranged at the end of the middle phase jumper bracket (3-2), and a lower phase jumper hanging point (6-3) arranged at the end of the lower phase jumper bracket (3-3).

2. The single-circuit tension steel pipe pole for narrowing the width of a line corridor according to claim 1, characterized in that: The ground wire cross arm (2) and the jumper bracket are both located on one side of the rod body (1), and are located on the same side of the rod body (1).

3. The single-circuit tension steel pipe pole for narrowing the width of a line corridor according to claim 1, characterized in that: The pole body (1), the ground wire cross arm (2), and the three-phase jumper bracket are all steel pipe components, and each section is connected by a flange and bolts.

4. The single-circuit tension steel pipe pole for narrowing the width of a line corridor according to claim 1, characterized in that: The three-phase conductors are arranged vertically by connecting the upper phase conductor hanging point (5-1), the middle phase conductor hanging point (5-2), the lower phase conductor hanging point (5-3), the upper phase jumper hanging point (6-1), the middle phase jumper hanging point (6-2), and the lower phase jumper hanging point (6-3).

5. The single-circuit tension steel pipe pole for narrowing the width of a line corridor according to claim 1, characterized in that: The upper phase conductor hanging point (5-1) and the lower phase conductor hanging point (5-3) are located on the pole body (1), and the horizontal distance between the two is 0.

6. The single-circuit tension steel pipe pole for narrowing the width of a line corridor according to claim 1, characterized in that: The middle-phase conductor hanging point (5-2) is arranged at the root of the middle-phase jumper bracket (3-2).

7. The single-circuit tension steel pipe pole for narrowing the width of a line corridor according to claim 1, characterized in that: The upper phase conductor hanging point (5-1) and the lower phase conductor hanging point (5-3) have the same structure, both comprising an annular welding plate (7); a wire hanging hole (7-1) and a construction hole (7-2) are provided on the annular welding plate (7); and a conductor cross arm flange (8) is provided on one side of the annular welding plate (7).

8. The single-circuit tension steel pipe pole for narrowing the width of a line corridor according to claim 7, characterized in that: A plurality of stiffening plates (7-3) are also provided on the annular welding plate (7).

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