CN216042981U - Single-column four-stay-wire tower - Google Patents
Single-column four-stay-wire tower Download PDFInfo
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- CN216042981U CN216042981U CN202121870409.0U CN202121870409U CN216042981U CN 216042981 U CN216042981 U CN 216042981U CN 202121870409 U CN202121870409 U CN 202121870409U CN 216042981 U CN216042981 U CN 216042981U
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Abstract
The utility model discloses a single-column four-stay-wire tower, and belongs to the technical field of electrical equipment and electrical engineering. The utility model comprises the following steps: the tower column is provided with stay wire points, two symmetrical ends of the tower column at the stay wire points are provided with stay wire frames, and each stay wire frame is used for fixing two stay wires; one end of each of the four pull wires is fixedly connected with the pull wire frame, and the other end of each of the four pull wires is fixedly connected with the ground. Compared with the existing tower, the stay wire tower has obvious economic advantages in cost and reduces the cost.
Description
Technical Field
The utility model relates to the technical field of electrical equipment and electrical engineering, in particular to a single-column four-stay-wire tower.
Background
In recent years, with the rapid development of the Chinese power grid, the requirements for power supply reliability and efficiency are continuously improved, and the Chinese power grid technology gradually enters the advanced national ranks in the world. At present, the scale of a power grid in China is the first in the world, and the power grid has the highest alternating current and direct current transmission voltage level in the world, and an extra-high voltage transmission project with the largest transmission capacity and the farthest transmission point distance in the world.
The existing guyed tower type adopted by the transmission line of China mainly comprises a guyed tower, a guyed V tower, a single-column cat-head tower, a single-column claw tower and a suspended guyed tower, the first three guyed towers are mainly suitable for alternating current lines, the characteristic that the direct current lines only have two phases of conducting wires determines that the guyed tower type mainly comprises the single-column claw tower and the suspended guyed tower, the single-column guyed tower consists of guyed wires and a single lattice hook type tower column, and compared with a self-supporting tower, the guyed tower has the advantages of small dead weight and attractive appearance, and has good application prospect in the area with wide corridors. And the self-supporting iron tower has the inherent disadvantages that: the safety of the iron tower is poor, the longitudinal torsion resistance is poor, the inclined material on the front side of the cross arm is stressed greatly, and the construction cost is high, so that the guyed tower is far superior to a self-standing iron tower in the economical efficiency of construction and the continuity of power transmission work.
The line tower is generally composed of 3 parts, namely a tower head, a main column and a stay wire. The tower head and the main column are generally formed by a space separating frame consisting of angle steel, have good integral stability and can bear larger axial pressure; the stay wire is made of high-strength steel stranded wires and can bear large tensile force. Compared with a self-supporting iron tower, the conventional guyed tower can save 20-40% of tower materials, and is a tower type with reasonable stress and most economic indexes in all tower types. A lot of design and construction experiences are accumulated in the use of the guyed towers of the traditional 330kV, 500kV and 750kV transmission lines, and the guyed towers are also used in high-voltage transmission line engineering abroad in a large quantity. Although the guyed tower occupies a large area, the guyed tower has the advantages of simple structure, good stress performance, convenient construction, effective reduction of the weight of the tower, excellent economic index and wide attention paid to the engineering field in the construction of high-voltage lines. Especially in the wide western regions of China, the economical stay wire tower is applied, so that the construction investment cost can be saved, the resource-saving development is realized, and the economy and the safety of the power grid are improved.
The design of the power transmission line is a system engineering which comprises a plurality of design works such as path selection, a corridor, tower positioning, electrical design and the like, wherein the power transmission line towers and the corridor are the basis of the design of the whole line and directly relate to the manufacturing cost, construction and safety of the whole engineering. The transmission line corridor needs to consider the influence of geographic factors of a plurality of planning areas, such as landform, air temperature, wind speed, icing condition, artificial facilities, such as distribution of roads and railways, large building groups and the like. Therefore, improving the power transmission capacity of the power grid, saving investment, protecting the environment, and improving the economic benefit and the safety and reliability of the power grid become problems to be solved urgently in power grid development, and then, the development of the economical power transmission line corridor becomes very important.
In view of the characteristics of high load density and tension of line corridors of the urban power grid, the problems of insufficient power grid transmission capacity and corrosion resistance, cost and the like of a power grid tower need to be solved.
Disclosure of Invention
In order to solve the problems, the utility model provides a single-column four-stay-wire tower, which comprises:
the tower column is provided with stay wire points, two symmetrical ends of the tower column at the stay wire points are provided with stay wire frames, and each stay wire frame is used for fixing two stay wires;
one end of each of the four pull wires is fixedly connected with the pull wire frame, and the other end of each of the four pull wires is fixedly connected with the ground.
Optionally, the wire pulling frame is triangular and is closed.
Optionally, the ground angle of the stay wire is 45-55 degrees.
Optionally, the overhanging length of the wire-pulling frame is less than or equal to 3 m.
Optionally, the setting height of the stay wire point is the height closest to the cross arm when the stay wire occupies the maximum allowable range and the included angle of the stay wire to the ground is 45-55 degrees.
Optionally, the main column of the tower column has a square cross section.
Compared with the existing tower, the stay wire tower has obvious economic advantages in cost and reduces the cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a closed type wire-pulling stand according to the present invention;
FIG. 3 is a drawing showing the arrangement of the stay wires of the closed-end type stay wire frame according to the present invention;
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the utility model. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
The utility model provides a single-column four-stay-wire tower, as shown in figure 1, the tower comprises:
the tower column is provided with stay wire points, two symmetrical ends of the tower column at the stay wire points are provided with stay wire frames, and each stay wire frame is used for fixing two stay wires;
one end of each of the four pull wires is fixedly connected with the pull wire frame, and the other end of each of the four pull wires is fixedly connected with the ground.
Wherein, the stay frame is triangular, is closed as shown in figure 2, and the arrangement of the closed stay frame and the stay is shown as 3.
Wherein the ground angle of the stay wire is between 45 and 55 degrees.
Wherein the overhanging length of the wire-drawing frame is less than or equal to 3 m.
The height of the stay wire point is the height closest to the cross arm when the stay wire occupies the maximum allowable range and the included angle of the stay wire to the ground is 45-55 degrees.
Wherein, the cross-section of the main column of the tower column is a square cross-section.
Compared with the existing tower, the stay wire tower has obvious economic advantages in cost and reduces the cost.
Claims (6)
1. A single-pole, four-stay pole tower, said tower comprising:
the tower column is provided with stay wire points, two symmetrical ends of the tower column at the stay wire points are provided with stay wire frames, and each stay wire frame is used for fixing two stay wires;
one end of each of the four pull wires is fixedly connected with the pull wire frame, and the other end of each of the four pull wires is fixedly connected with the ground.
2. The tower of claim 1, wherein the stay is triangular and closed.
3. A tower as claimed in claim 1 wherein said wires are angled to ground between 45-55 degrees.
4. Tower according to claim 1, characterised in that the overhanging length of the stay is less than or equal to 3 m.
5. The tower of claim 1, wherein the stay wire points are arranged at heights closest to the cross arm within the maximum allowable range of the occupied area of the stay wires and the included angle between the ground and the stay wires is 45-55 degrees.
6. Tower as claimed in claim 1, characterised in that the main column of the tower has a square section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121870409.0U CN216042981U (en) | 2021-08-11 | 2021-08-11 | Single-column four-stay-wire tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121870409.0U CN216042981U (en) | 2021-08-11 | 2021-08-11 | Single-column four-stay-wire tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216042981U true CN216042981U (en) | 2022-03-15 |
Family
ID=80557987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121870409.0U Active CN216042981U (en) | 2021-08-11 | 2021-08-11 | Single-column four-stay-wire tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216042981U (en) |
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2021
- 2021-08-11 CN CN202121870409.0U patent/CN216042981U/en active Active
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