CN215369020U - 500kV double-loop compact strain tower - Google Patents
500kV double-loop compact strain tower Download PDFInfo
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- CN215369020U CN215369020U CN202120232470.6U CN202120232470U CN215369020U CN 215369020 U CN215369020 U CN 215369020U CN 202120232470 U CN202120232470 U CN 202120232470U CN 215369020 U CN215369020 U CN 215369020U
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Abstract
The 500kV double-loop compact strain tower comprises tower legs, a tower body and a tower head which are sequentially connected, wherein the tower head is sequentially provided with a ground wire cross arm, an upper wire cross arm, a right middle jumper wire cross arm, a left middle jumper wire cross arm, a lower wire cross arm and a left lower jumper wire cross arm from top to bottom; the ground wire cross arm comprises a left ground wire cross arm and a right ground wire cross arm which are both provided with jumper wire hanging points; the upper lead cross arm comprises a left upper lead cross arm and a right upper lead cross arm which are provided with lead hanging points; the lower lead cross arm comprises a left lower lead cross arm and a right lower lead cross arm which are provided with lead hanging points; the tower body is also provided with a high-position wire hanging point and a low-position wire hanging point. The three-phase wires of the same loop are arranged in a triangular mode, so that the natural transmission power of the line can be improved; the width of the line corridor can be effectively compressed by about 50%, the removal of buildings and structures of the corridor is greatly reduced, and the economic benefit is obvious.
Description
Technical Field
The utility model relates to the technical field of overhead transmission line iron towers, in particular to a 500kV double-loop compact strain tower.
Background
At present, with the continuous acceleration of the urbanization process, the power demand is gradually increased, and the power grid construction strength is also continuously strengthened. Along with the increase of the tension of land resources and transmission line corridors, the requirement of improving the transmission capacity of the line is also increasingly urgent.
Considering the influence of electromagnetic environment and the like on human bodies, civil houses and other structures within the range of 5.0m outside the wire at the side of the 500kV line need to be considered according to the disassembly during the construction. The space between the leads on two sides of the conventional 500kV line corner tower is about 16.0-17.5m, the dismantling range is 26.0-27.5m, the dismantling engineering amount is large in construction investment, and the problem is particularly prominent in areas with dense dwellings and crowded corridors (as shown in figure 1).
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and provide a 500kV double-loop compact strain tower which can improve the natural transmission power of a line, compress the width of a line corridor and save the engineering investment.
The technical scheme adopted by the utility model for solving the technical problems is that the 500kV double-loop compact strain tower comprises tower legs, a tower body and a tower head which are sequentially connected, wherein the tower head is sequentially provided with a ground wire cross arm, an upper wire cross arm, a right middle jumper wire cross arm, a left middle jumper wire cross arm, a lower wire cross arm and a left lower jumper wire cross arm from top to bottom;
the ground wire cross arm comprises a left ground wire cross arm and a right ground wire cross arm which are both provided with jumper wire hanging points;
the upper lead cross arm comprises a left upper lead cross arm and a right upper lead cross arm which are provided with lead hanging points;
the lower lead cross arm comprises a left lower lead cross arm and a right lower lead cross arm which are provided with lead hanging points;
the tower body is also provided with a high-position wire hanging point and a low-position wire hanging point, the high-position wire hanging point and the right middle jumper wire cross arm are at the same horizontal height, and the low-position wire hanging point and the left lower jumper wire cross arm are at the same horizontal height.
The left upper wire cross arm is connected with a first wire tension string in a hanging mode, and the left ground wire cross arm is connected with a first jumper string in a hanging mode; the right upper wire cross arm is connected with a second wire strain insulator string in a hanging mode, and the right ground wire cross arm is connected with a second jumper string in a hanging mode; a third wire tension string is hung at a wire hanging point at the high position of the tower body, and a third jumper string is hung on the right middle jumper cross arm; the first lead tension string, the first jumper string, the second lead tension string, the second jumper string, the third lead tension string and the third jumper string form a first loop.
The left lower wire cross arm is connected with a first wire tension string in a hanging mode, and the left middle jumper wire cross arm is connected with a first jumper wire string in a hanging mode; the right lower lead cross arm is connected with a second lead tension string and a second jumper string in a hanging mode; a third wire tension string is hung at a wire hanging point at the lower part of the tower body, and a third jumper string is hung on the left lower jumper cross arm; and the first lead tension string, the first jumper string, the second lead tension string, the second jumper string, the third lead tension string and the third jumper string form a second loop.
Further, the left ground wire cross arm is connected with a left ground wire in a hanging mode, and the right ground wire cross arm is connected with a right ground wire in a hanging mode.
The three-phase wires of the same loop are arranged in a triangular mode, so that the natural transmission power of the line can be improved; according to different line corner degrees, the distance between the wires on the left side and the right side of the iron tower is 7.6-10.6m, while the distance between the wires on the two sides of the conventional 500kV line corner tower is about 16.0-17.5m, the width of a line corridor can be effectively compressed by about 50%, the width of the line corridor can be effectively compressed by about 50%, the removal of corridor houses and structures is greatly reduced, the channel cleaning cost is reduced, the investment is saved, and the economic benefit is obvious.
Drawings
Fig. 1 is a schematic structural diagram of a conventional iron tower;
fig. 2 is a schematic structural diagram of an embodiment of the present invention.
In the figure: 1. a tower leg, 2, a tower body, 3-a left ground wire cross arm, 4, a right ground wire cross arm, 5, a left upper lead cross arm, 6, a right upper lead cross arm, 7, a right middle jumper cross arm, 8, a left middle jumper cross arm, 9, a left lower lead cross arm, 10, a right lower lead cross arm, 11, a left lower jumper cross arm, 12, a tower body high lead hanging point, 13, a tower body low lead hanging point, 14-1, a loop first lead tension string, 14-2, a loop second lead tension string, 14-3, a loop third lead tension string, 15-1, a loop first jumper string, 15-2, a loop second jumper string, 15-3, a loop third jumper string, 16-1, a loop second first tension string, 16-2, a loop second lead tension string, 16-3, a loop second third lead tension string, 17-1, 17-2, 17-3 and third jumper strings.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 2, the present embodiment includes tower legs 1, a tower body 2 and a tower head. The tower head is provided with a ground wire cross arm, an upper wire cross arm, a right middle jumper wire cross arm 7, a left middle jumper wire cross arm 8, a lower wire cross arm and a left lower jumper wire cross arm 11 from top to bottom in sequence.
The ground wire cross arm comprises a left ground wire cross arm 3 and a right ground wire cross arm 4 which are all provided with jumper wire hanging points.
Go up the wire cross arm and include upper left wire cross arm 5 and upper right wire cross arm 6, all set up the wire and hang the point.
Lower wire cross arm includes wire cross arm 9 and right side down wire cross arm 10 down on a left side, all sets up the wire and hangs the point.
The tower body 2 is also provided with a high-position wire hanging point 12 and a low-position wire hanging point 13. The high-position wire hanging point 12 and the right middle jumper wire cross arm 7 are on the same horizontal height, and the low-position wire hanging point 13 and the left lower jumper wire cross arm 11 are on the same horizontal height.
The upper left lead cross arm 5 is connected with a first lead tension string 14-1 in a hanging mode, and the left ground wire cross arm 3 is connected with a first jumper string 15-1 in a hanging mode.
The upper right wire cross arm 6 is connected with a second wire strain insulator string 14-2 in a hanging mode, and the right ground wire cross arm 4 is connected with a second jumper string 15-2 in a hanging mode.
A high-position wire hanging point 12 of the tower body 2 is hung with a third wire tension string 14-3, and a right middle jumper wire cross arm 7 is hung with a third jumper wire string 15-3. The first wire tension string 14-1, the first jumper string 15-1, the second wire tension string 14-2, the second jumper string 15-2, the third wire tension string 14-3 and the third jumper string 15-3 form a first loop. Namely: three-phase wires hung on the upper left wire cross arm 5, the upper right wire cross arm 6 and the wire hanging point 12 at the high position of the tower body form a loop I
The left lower wire cross arm 9 is connected with a first wire tension string 16-1 in a hanging mode, and the left middle jumper wire cross arm 8 is connected with a first jumper wire string 17-1 in a hanging mode.
The right lower wire cross arm 10 is hung with a second wire strain insulator-string 16-2 and a second jumper string 17-3.
A lower wire hanging point 13 of the tower body 2 is connected with a third wire tension string 16-3 in a hanging mode, and a left lower jumper wire cross arm 11 is connected with a third jumper wire string 17-3 in a hanging mode.
The first lead tension string 16-1, the first jumper string 17-1, the second lead tension string 16-2, the second jumper string 17-3, the third lead tension string 16-3 and the third jumper string 17-3 form a second loop. Namely: and a three-phase wire hung on the left lower wire cross arm 9, the right lower wire cross arm 10 and a wire hanging point 13 at the lower part of the tower body forms a second loop.
The left ground wire cross arm 3 is connected with a left ground wire in a hanging mode, and the right ground wire cross arm 4 is connected with a right ground wire in a hanging mode.
The three-phase wires of the same loop are arranged in a triangular mode, so that the natural transmission power of the line can be improved; according to different line corner degrees, the distance between the wires on the left side and the right side of the iron tower is 7.6-10.6m, while the distance between the wires on the two sides of the conventional 500kV line corner tower is about 16.0-17.5m, the width of a line corridor can be effectively compressed by about 50%, the removal of buildings and structures of the corridor is greatly reduced, the channel cleaning cost is reduced, the investment is saved, and the economic benefit is obvious.
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 (2)
1.500kV two return circuit compact strain insulator tower, including tower leg, body of the tower and the tower head that connect gradually, its characterized in that: the tower head is sequentially provided with a ground wire cross arm, an upper wire cross arm, a right middle jumper wire cross arm, a left middle jumper wire cross arm, a lower wire cross arm and a left lower jumper wire cross arm from top to bottom; the ground wire cross arm comprises a left ground wire cross arm and a right ground wire cross arm which are both provided with jumper wire hanging points; the upper lead cross arm comprises a left upper lead cross arm and a right upper lead cross arm which are provided with lead hanging points; the lower lead cross arm comprises a left lower lead cross arm and a right lower lead cross arm which are provided with lead hanging points; the tower body is also provided with a high-position wire hanging point and a low-position wire hanging point, the high-position wire hanging point and the right middle jumper wire cross arm are at the same horizontal height, and the low-position wire hanging point and the left lower jumper wire cross arm are at the same horizontal height; the left upper wire cross arm is connected with a first wire tension string in a hanging mode, and the left ground wire cross arm is connected with a first jumper string in a hanging mode; the right upper wire cross arm is connected with a second wire strain insulator string in a hanging mode, and the right ground wire cross arm is connected with a second jumper string in a hanging mode; a third wire tension string is hung at a wire hanging point at the high position of the tower body, and a third jumper string is hung on the right middle jumper cross arm; the first lead tension string, the first jumper string, the second lead tension string, the second jumper string, the third lead tension string and the third jumper string form a first loop; the left lower wire cross arm is connected with a first wire tension string in a hanging mode, and the left middle jumper wire cross arm is connected with a first jumper wire string in a hanging mode; the right lower lead cross arm is connected with a second lead tension string and a second jumper string in a hanging mode; a third wire tension string is hung at a wire hanging point at the lower part of the tower body, and a third jumper string is hung on the left lower jumper cross arm; and the first lead tension string, the first jumper string, the second lead tension string, the second jumper string, the third lead tension string and the third jumper string form a second loop.
2. The 500kV double-circuit compact strain tower of claim 1, wherein: the left ground wire cross arm is connected with a left ground wire in a hanging mode, and the right ground wire cross arm is connected with a right ground wire in a hanging mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120232470.6U CN215369020U (en) | 2021-01-27 | 2021-01-27 | 500kV double-loop compact strain tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120232470.6U CN215369020U (en) | 2021-01-27 | 2021-01-27 | 500kV double-loop compact strain tower |
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| Publication Number | Publication Date |
|---|---|
| CN215369020U true CN215369020U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120232470.6U Active CN215369020U (en) | 2021-01-27 | 2021-01-27 | 500kV double-loop compact strain tower |
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|---|---|
| CN (1) | CN215369020U (en) |
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2021
- 2021-01-27 CN CN202120232470.6U patent/CN215369020U/en active Active
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