CN211369746U - Winding type double-loop drilling and crossing tower on 500kV jumper wire - Google Patents
Winding type double-loop drilling and crossing tower on 500kV jumper wire Download PDFInfo
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- CN211369746U CN211369746U CN201921786381.5U CN201921786381U CN211369746U CN 211369746 U CN211369746 U CN 211369746U CN 201921786381 U CN201921786381 U CN 201921786381U CN 211369746 U CN211369746 U CN 211369746U
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Abstract
A500 kV jumper wire upward winding type double-loop drilling and crossing tower comprises a tower head, a lower tower body and tower legs, wherein the lower tower body and the tower legs are arranged at the lower part of the tower head; the upper part of the tower head is provided with a ground wire bracket, two sides of the ground wire bracket are respectively provided with a group of upward winding type I-shaped jumping strings, and the length of the upper wire cross arm is smaller than that of the lower wire cross arm; it has the characteristics of saving tower materials, smaller tower head size, increasing ground distance, considerable economic benefit and the like.
Description
Technical Field
The utility model belongs to the technical field of the tower is crossed to transmission of electricity engineering brill, concretely relates to wind formula double loop on 500kV wire jumper and bore tower more.
Background
With the rapid development of economy, the pace of electric power construction in China is accelerated continuously, and grid frames of all regions in the country are improved continuously. The newly-built transmission line engineering often needs to drill over the existing line, and the height of the iron tower needs to be as low as possible, but the height of the tension tower is controlled by the distance between a jumper wire and the ground.
When a tension tower of a 500kV line is designed in the past, a jumper gap is considered, an iron tower cross arm is often designed to be longer, tension string hanging points are correspondingly larger, and waste of tower materials and line-to-line distances is caused. Meanwhile, the jumper insulator string sags, so that the ground distance of the iron tower is reduced, and the design of the tower is correspondingly increased in height.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, provide one kind and adopt two triangle wires to arrange to wind formula wire jumper combination fish belly formula cross arm structure on adopting, will compress two return circuit tower heads, wind the tower simultaneously and breathe out on the higher 500kV wire jumper of high utilization ratio than conventional iron tower around formula two return circuit and bore the tower of crossing.
The utility model aims at completing the following technical scheme that a 500kV jumper winding type double-loop drilling and crossing tower comprises a tower head, a lower tower body and tower legs, wherein the lower tower body and the tower legs are arranged at the lower part of the tower head; the upper part of the tower head is provided with a ground wire support, and two sides of the ground wire support are respectively provided with a group of upward winding type I-shaped jumping strings.
Further, the length of the upper wire cross arm is smaller than that of the lower wire cross arm.
Furthermore, four groups of upward winding type I-shaped jumping strings are arranged on the upper wire cross arm, the upper wire cross arm comprises a first connecting cross arm and a second connecting cross arm which are symmetrically arranged on two corresponding sides of the tower body, the first connecting cross arm is of a trapezoidal structure, the second connecting cross arm is of a rectangular structure, and a group of upward winding type I-shaped jumping strings are arranged on each side of the first connecting cross arm and the second connecting cross arm.
The utility model has the advantages of: the utility model discloses effectively solved 500Kv and bored the problem of crossing the circuit, and compared with conventional two return circuit shaft towers, not only saved the tower material, the tower head size is littleer moreover, to the ground distance increase, economic benefits is considerable.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1, the 500kV jumper winding-up type double-circuit drilling and crossing tower of the present invention comprises a tower head 1, a lower tower body 2 and tower legs 3 arranged at the lower part of the tower head 1, wherein the tower head 1 comprises a tower body 4, and an upper wire cross arm 5 and a lower wire cross arm 6 which are vertically arranged on the tower body 4, and at least four groups of winding-up type "I" jumping strings 7 are arranged on the upper wire cross arm 6; the upper part of the tower head 1 is provided with a ground wire support 8, and two sides of the ground wire support 8 are respectively provided with a group of upward winding type I-shaped jumping strings 7.
Referring to fig. 1, the upper wire cross arm 5 has a length smaller than that of the lower wire cross arm 6. The upper wire cross arm 5 is provided with four groups of upper winding type I-shaped jump strings 7, the upper wire cross arm 5 comprises a first connecting cross arm 9 and a second connecting cross arm 10 which are symmetrically arranged at two corresponding sides of the tower body, the first connecting cross arm 9 is of a trapezoidal structure, the second connecting cross arm 10 is of a rectangular structure, and the first connecting cross arm 9 and the second connecting cross arm 10 at each side are provided with a group of upper winding type I-shaped jump strings 7.
The utility model effectively solves the problem of 500Kv crossing the line, and compared with the conventional double-loop tower, not only saves the tower material, but also has smaller tower head size and increased ground distance; compared with the conventional double-loop tower type economy, the newly designed double-triangular lead arrangement mode adopted for crossing the tower by drilling adopts an upward winding type jumper wire combined with a fish belly type cross arm structure to compress a double-loop tower head. Compared with the conventional double-loop tower type, when the newly designed drilling and crossing tower is at the same height of 21m, the total height of the tower is reduced by 3.1m, but the ground distance is increased by 5m, so that the benefit is obvious. In addition, by comparing the newly designed drilling tower with the conventional double-loop tower, the power frequency electric field, the power frequency magnetic field, the radio interference and the audible noise interference values are calculated, and all electromagnetic environment indexes of the drilling tower are relatively good.
The specific embodiments described herein are merely illustrative of the principles of the present invention and its efficacy, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.
Claims (3)
1. The utility model provides a wind two return circuits of formula on 500kV wire jumper and bore tower more, includes the tower head and sets up lower shaft of the tower body and the tower leg in tower head lower part, its characterized in that: the tower head comprises a tower body, an upper wire cross arm and a lower wire cross arm, wherein the upper wire cross arm and the lower wire cross arm are vertically arranged on the tower body, and at least four groups of upward winding type I-shaped jumping strings are arranged on the upper wire cross arm; the upper part of the tower head is provided with a ground wire support, and two sides of the ground wire support are respectively provided with a group of upward winding type I-shaped jumping strings.
2. The 500kV jumper up-wound double-loop drilling tower of claim 1, characterized in that: the length of the upper wire cross arm is smaller than that of the lower wire cross arm.
3. The 500kV jumper up-wound dual-loop drilling tower of claim 1 or 2, wherein: the upper wire cross arm is provided with four groups of upper winding type I-shaped jumping strings, the upper wire cross arm comprises a first connecting cross arm and a second connecting cross arm which are symmetrically arranged on two corresponding sides of the tower body, the first connecting cross arm is of a trapezoidal structure, the second connecting cross arm is of a rectangular structure, and the first connecting cross arm and the second connecting cross arm on each side are provided with a group of upper winding type I-shaped jumping strings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921786381.5U CN211369746U (en) | 2019-10-23 | 2019-10-23 | Winding type double-loop drilling and crossing tower on 500kV jumper wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921786381.5U CN211369746U (en) | 2019-10-23 | 2019-10-23 | Winding type double-loop drilling and crossing tower on 500kV jumper wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211369746U true CN211369746U (en) | 2020-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921786381.5U Active CN211369746U (en) | 2019-10-23 | 2019-10-23 | Winding type double-loop drilling and crossing tower on 500kV jumper wire |
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| CN (1) | CN211369746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112448350A (en) * | 2020-11-24 | 2021-03-05 | 国网河南省电力公司经济技术研究院 | Drilling and crossing tower capable of preventing wire jumping and wind deflection |
-
2019
- 2019-10-23 CN CN201921786381.5U patent/CN211369746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112448350A (en) * | 2020-11-24 | 2021-03-05 | 国网河南省电力公司经济技术研究院 | Drilling and crossing tower capable of preventing wire jumping and wind deflection |
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