CN214402981U - Transmission line single loop wine glass tower - Google Patents
Transmission line single loop wine glass tower Download PDFInfo
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- CN214402981U CN214402981U CN202022339828.3U CN202022339828U CN214402981U CN 214402981 U CN214402981 U CN 214402981U CN 202022339828 U CN202022339828 U CN 202022339828U CN 214402981 U CN214402981 U CN 214402981U
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Abstract
The utility model discloses a transmission line single loop wine glass tower, including the wine glass tower body that is used for overhead transmission line, wine glass tower body mainly includes the body of the tower and sets up tower head and the tower leg in both sides about the body of the tower respectively, the tower head includes the tower window and sets up the cross arm at the tower window top, the cross arm includes the well cross arm of horizontal setting and sets up the limit cross arm in well cross arm both sides respectively, one side that the cross arm was kept away from well cross arm is provided with the limit looks through hanging the point respectively and hangs the cluster, and the top of limit cross arm is provided with the ground wire support that extends in the slant, and also set up the hanging point that is used for hanging the cluster on the ground wire support; the middle cross arm is made of composite materials, and the side cross arms, the tower windows, the tower body, the tower legs and the ground wire support are all made of steel; the bottom of the middle cross arm is provided with a hanging point, a middle-phase suspension string is arranged on the hanging point, and the length of the middle-phase suspension string is smaller than that of the side-phase suspension string.
Description
Technical Field
The utility model relates to a transmission of electricity distribution technical field, concretely relates to transmission line single loop wine glass tower.
Background
With the development of domestic economy, corridor resources of high-voltage transmission lines are more and more tense, and how to arrange the transmission lines in a narrower region becomes a big problem of power transmission line design. At the same time, considering the engineering investment, it is desirable to design a tower type with lighter weight and more convenient assembly. The single-loop wine glass tower is generally arranged in a three-phase I-string or IVI mode, and the middle-phase tower window is large and is used in a wide corridor area. The whole tower height is lower than the cat-head tower, the tower weight is generally lighter than the cat-head tower, and meanwhile, the problem of ice removal, jumping and flashover of different phases does not exist, so that the tower is widely applied to mountain lines. The flat ground area is limited by the path corridor, so that a wine glass tower is generally adopted less, a cat-head tower is adopted more, the distance between the side phase lead wires is 4-6m narrower than that of the wine glass tower, and the width of the corridor can be reduced. The wires are arranged in a triangular mode, the middle phase wires are raised by 4-6m, the wind load of the iron tower is increased, the tower weight of the iron tower is increased compared with that of a wine glass tower, and the average tower weight is about 6% higher than that of the wine glass tower.
The composite material has the advantages of light weight, high strength, corrosion resistance, convenient processing and forming, excellent electrical insulation property and the like. After adopting combined material, can practice thrift a large amount of steel, and utilize its insulating properties, not only solve the windage yaw and the pollution flashover accident of circuit, still can reduce the tower head size simultaneously, reduce the corridor width, reduce engineering investment cost. In addition, the composite material has light weight, is easy to process and form and is convenient to transport and assemble. Composite material poles and towers have more application in domestic power transmission lines, and relate to almost all high-voltage lines with voltage grades ranging from 110kV to extra-high voltage.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a simple structure and can effectively reduce the heavy transmission line single loop wine glass tower of tower.
The utility model aims at completing through the following technical scheme, a transmission line single loop wine glass tower, including the wine glass tower body that is used for overhead transmission line, wine glass tower body mainly includes the body of the tower and sets up tower head and tower leg in body of the tower upper and lower both sides respectively, the tower head includes the tower window and sets up the cross arm at the tower window top, the cross arm includes the well cross arm of horizontal setting and sets up the limit cross arm in well cross arm both sides respectively, one side that the cross arm kept away from in the side cross arm is provided with the border phase through hanging the point respectively and hangs the cluster, and the top of limit cross arm is provided with the ground wire support that extends in the slant, and also set up the hanging point that is used for hanging the cluster on the ground wire support; the middle cross arm is made of composite materials, and the side cross arms, the tower windows, the tower body, the tower legs and the ground wire support are all made of steel.
Furthermore, the middle cross arm is made of composite materials, a hanging point is arranged at the bottom of the middle cross arm, a middle-phase suspension string is arranged on the hanging point, and the length of the middle-phase suspension string is smaller than that of the side-phase suspension string.
Further, the tower window comprises a first crank arm and a second crank arm which are symmetrically arranged on the tower body, and the outer sides of the first crank arm and the second crank arm are located on the same straight line, so that the whole tower window is arranged in an inverted ladder shape.
The utility model has the advantages of: the utility model discloses combine the characteristics in wineglass tower light in weight, the first tower of cat shrink corridor, adopt combined material with well cross arm on conventional wineglass tower basis, reduce well I cluster length that dangles to can dwindle whole well tower window size greatly, reduce the tower head height, tower head part weight reduces simultaneously, and whole engineering volume descends, is applicable to the narrow, not more than 500 m's of span hillock area in corridor.
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.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "lateral", "vertical", and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, the utility model discloses a transmission line single loop wine glass tower, including the wine glass tower body that is used for overhead transmission line, wine glass tower body mainly includes tower body 1 and sets up tower head 2 and tower leg 3 in tower body 1 upper and lower both sides respectively, tower head 2 includes tower window 4 and sets up the cross arm 5 at tower window 4 top, cross arm 5 includes horizontal well cross arm 6 that sets up and sets up the limit cross arm 7 in well cross arm 6 both sides respectively, one side that the cross arm 6 was kept away from in the limit cross arm 7 is provided with the looks of limit through the string 8 respectively, the top of limit cross arm 7 is provided with the ground wire support 9 that extends in the slant, and also set up the string point that is used for hanging the string on ground wire support 9; the middle cross arm 6 is made of composite materials, and the side cross arms 7, the tower windows 4, the tower body 1, the tower legs 3 and the ground wire support 9 are all made of steel.
Referring to fig. 1, a hanging point is arranged at the bottom of the middle cross arm 6, a middle-phase suspension string 10 is arranged on the hanging point, the length of the middle-phase suspension string 10 is smaller than that of the side-phase suspension string 8, 1m is calculated according to ice coating unbalanced tension and broken line tension in a 220kV line, compared with the conventional 3.5m string length, the size of the whole tower window 4 is greatly reduced, the height of the tower head 2 is reduced, the distance between the conductor lines (applicable span is not more than 500m), the insulation of the middle-phase high-voltage live conductor is shared by the suspension string and the composite material, and the sum of the creepage distance of the suspension string insulator and the creepage distance of the composite material is larger than 6160 mm. The tower window 4 comprises a first crank arm 11 and a second crank arm 12 which are symmetrically arranged on the tower body, and the outer sides of the first crank arm 11 and the second crank arm 12 are positioned on the same straight line, so that the whole tower window 4 is arranged in an inverted ladder shape.
The implementation case is as follows:
the planned use condition of the newly designed middle-phase composite material cross arm wine cup type tangent tower is consistent with that of a tower type 2A1-ZB2 which is universally designed for national power grid transmission lines, and the distance between two sides of phase conductor lines after the design is finished is 12.8m, which is reduced by 2m compared with the conventional wine cup tower.
TABLE 1 service conditions of the phase composite Cross arm wine glass tower
After the composite cross arm is adopted, the height of the tower head of the wine glass tower is reduced by 30 percent, the wind area is reduced, and the tower weight is reduced. The following table compares the column weights of conventional wineglass columns:
TABLE 2 weight comparison table of composite material cross arm wine glass tower and conventional wine glass tower
As can be seen from the above table, the composite wine glass tower can reduce the tower weight by about 7%, and as the breath height increases, the proportion of tower weight reduction increases. The utility model discloses combine the characteristics in wineglass tower light in weight, the first tower of cat shrink corridor, adopt combined material with well cross arm on conventional wineglass tower basis, reduce well I cluster length that dangles to can dwindle whole well tower window size greatly, reduce the tower head height, tower head part weight reduces simultaneously, whole engineering volume descends, is applicable to the corridor narrow, the grade distance does not exceed 500 m's the hillock area, has the characteristics that weight is lighter, the corridor is littleer.
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 (1)
1. The utility model provides a transmission line single loop wine glass tower, includes the wine glass tower body that is used for overhead transmission line, its characterized in that: the wine glass tower body mainly comprises a tower body, and a tower head and tower legs which are respectively arranged on the upper side and the lower side of the tower body, wherein the tower head comprises a tower window and a cross arm arranged at the top of the tower window, the cross arm comprises a middle cross arm which is transversely arranged and side cross arms which are respectively arranged on the two sides of the middle cross arm, one side of each side cross arm, which is far away from the middle cross arm, is respectively provided with a side phase suspension string through a hanging point, the top of each side cross arm is provided with a ground wire support which extends obliquely upwards, and the ground wire support is also provided with a hanging point for hanging the suspension string; the middle cross arm is made of composite materials, and the side cross arms, the tower windows, the tower body, the tower legs and the ground wire support are all made of steel; the middle cross arm is made of composite materials, a hanging point is arranged at the bottom of the middle cross arm, a middle-phase suspension string is arranged on the hanging point, and the length of the middle-phase suspension string is smaller than that of the side-phase suspension string; the tower window comprises a first crank arm and a second crank arm which are symmetrically arranged on the tower body, and the outer sides of the first crank arm and the second crank arm are positioned on the same straight line, so that the whole tower window is arranged in an inverted ladder shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022339828.3U CN214402981U (en) | 2020-10-20 | 2020-10-20 | Transmission line single loop wine glass tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022339828.3U CN214402981U (en) | 2020-10-20 | 2020-10-20 | Transmission line single loop wine glass tower |
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| CN214402981U true CN214402981U (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022339828.3U Active CN214402981U (en) | 2020-10-20 | 2020-10-20 | Transmission line single loop wine glass tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126325A (en) * | 2022-05-27 | 2022-09-30 | 国网甘肃省电力公司电力科学研究院 | Cat-head tower of overhead transmission line and middle-phase transformation method of cat-head tower |
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2020
- 2020-10-20 CN CN202022339828.3U patent/CN214402981U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126325A (en) * | 2022-05-27 | 2022-09-30 | 国网甘肃省电力公司电力科学研究院 | Cat-head tower of overhead transmission line and middle-phase transformation method of cat-head tower |
| CN115126325B (en) * | 2022-05-27 | 2024-06-21 | 国网甘肃省电力公司电力科学研究院 | Cat head tower of overhead transmission line and medium phase transformation method of cat head tower |
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