CN215107821U - Improved generation flexible direct current transmission line tangent tower - Google Patents
Improved generation flexible direct current transmission line tangent tower Download PDFInfo
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- CN215107821U CN215107821U CN202120661269.XU CN202120661269U CN215107821U CN 215107821 U CN215107821 U CN 215107821U CN 202120661269 U CN202120661269 U CN 202120661269U CN 215107821 U CN215107821 U CN 215107821U
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Abstract
Improved generation flexible direct current transmission line tangent tower, including tower head and body of the tower, the both sides on tower head upper portion are equipped with left side earthing pole wire respectively and hang some and right side earthing pole wire and hang some for hang and establish earthing pole wire and ground wire, the hanging point punishment of left side earthing pole wire hanging point and right side earthing pole wire hanging point do not is through lightning protection, anti-icing insulator connection metal return line that dodges. The metal return lines are suspended at the left side and the right side of the top of the tower head, and the metal return lines are used as return leads under normal conditions; the metal return line is used as a ground line when the tangent tower is struck by lightning to discharge the lightning. Utilize the utility model discloses the tangent tower of construction can merge the metal return line and the ground wire of flexible direct current circuit tangent tower, reduces the iron tower height by a wide margin, reduces flexible direct current circuit engineering investment.
Description
Technical Field
The utility model relates to a tangent tower especially relates to a flexible direct current transmission line tangent tower of improved generation.
Background
The flexible direct current transmission line constructed at present adopts a bipolar + metal return wire (grounding electrode wire) operation mode. The transmission line transmits direct current through the positive and negative pole wires, and unbalanced current between the two poles is balanced through the metal loop. When the direct current line is operated in a single pole, the metal return wire and one of the pole wires form a loop. Therefore, the flexible direct current line tower is generally erected by the direct current pole lead and the metal return line in the same tower, the direct current pole lead frame is arranged above the grounding pole lead, the fall height of the grounding pole lead layer of the direct current pole lead layer is 15-18m, the height of the iron tower needs to be set higher (see figure 2), and the engineering investment amount is larger.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, overcome prior art not enough, provide a tower head height little, the flexible direct current transmission line tangent tower of improved generation that the investment is low.
The technical proposal adopted by the utility model for solving the technical problems is that the improved flexible direct current transmission line tangent tower comprises a tower head and a tower body, wherein both sides of the upper part of the tower head are respectively provided with a left earth electrode wire hanging point and a right earth electrode wire hanging point for hanging an earth electrode wire and a ground wire,
the hanging points of the left earth electrode lead hanging point and the right earth electrode lead hanging point are respectively connected with a metal return line through lightning protection and anti-icing flashover insulators,
the metal return lines are suspended at the left side and the right side of the top of the tower head, and the metal return lines are used as return leads under normal conditions; the metal return line is used as a ground line when the tangent tower is struck by lightning to discharge the lightning.
Furthermore, a left side pole wire hanging point and a right side pole wire hanging point are respectively arranged on two sides of the lower portion of the tower head and are respectively used for hanging a positive electrode wire and a negative electrode wire of a direct current circuit.
Further, the tower head and the tower body are made of angle steel.
Utilize the utility model discloses the tangent tower of construction can merge the metal return line and the ground wire of flexible direct current circuit tangent tower, reduces the iron tower height by a wide margin, reduces flexible direct current circuit engineering investment.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a conventional flexible direct current line tangent tower.
In the figure: 1. the tower comprises a tower head, 1-1 parts of a left metal return line hanging point, 1-2 parts of a right return line hanging point, 1-3 parts of a left direct current pole wire hanging point, 1-4 parts of a right direct current pole wire hanging point, 2 parts of a lightning protection and anti-icing flashover insulator, 3 parts of a metal return line and 4 parts of a tower body.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the present embodiment includes a tower head 1 and a tower body 4, wherein the tower head is divided into an upper part and a lower part. Two sides of the upper part of the tower head are respectively provided with a left earth electrode lead hanging point 1-1 and a right earth electrode lead hanging point 1-2 which are used for hanging an earth electrode lead (also used as an earth wire),
the hanging points of the left grounding electrode wire hanging point 1-1 and the right grounding electrode wire hanging point 1-2 are respectively connected with a metal return wire 3 through lightning protection and anti-icing flashover insulators 2, the metal return wires 3 are suspended on the left side and the right side of the top of the tower head, the metal return wires 3 are used together with a ground wire, and under the condition of normal operation, the metal return wires and the tower body are in an insulation state; when thunderbolt, lightning protection, anti-icing dodge insulator 3 are punctured, are the on-state, and lightning current is released to the ground through the body of the tower and earthing device, and metal return line 3 uses as the ground wire, and after releasing and accomplishing, lightning protection, anti-icing dodge insulator 2 resume insulating state, and the normal operating condition is resumed to the circuit, and metal return line 3 uses as normal backward flow wire.
And a left side lead hanging point 1-3 and a right side lead hanging point 1-4 are respectively arranged on two sides of the lower part of the tower head and are respectively used for hanging a positive lead and a negative lead of a direct current circuit.
The tower head 1 and the tower body 4 are made of angle steel.
The utility model discloses an adopt lightning protection, anti-icing sudden strain of a muscle insulator 2 to merge metal return line 3 and ground wire, compressible iron tower height more than 15m practices thrift flexible direct current line's engineering investment.
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 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 (3)
1. Improved generation flexible direct current transmission line tangent tower, including tower head and body, its characterized in that: the two sides of the upper part of the tower head are respectively provided with a left earth electrode lead hanging point and a right earth electrode lead hanging point which are used for hanging an earth electrode lead and an earth wire,
the hanging points of the left earth electrode lead hanging point and the right earth electrode lead hanging point are respectively connected with a metal return line through lightning protection and anti-icing flashover insulators,
the metal return lines are suspended at the left side and the right side of the top of the tower head, and the metal return lines are used as return leads under normal conditions; the metal return line is used as a ground line when the tangent tower is struck by lightning to discharge the lightning.
2. The improved flexible direct current transmission line tangent tower of claim 1, characterized in that: and a left side pole wire hanging point and a right side pole wire hanging point are respectively arranged on two sides of the lower part of the tower head and are respectively used for hanging a positive pole wire and a negative pole wire of a direct current circuit.
3. The improved flexible direct current transmission line tangent tower of claim 1 or 2, characterized in that: the tower head and the tower body are made of angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120661269.XU CN215107821U (en) | 2021-03-31 | 2021-03-31 | Improved generation flexible direct current transmission line tangent tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120661269.XU CN215107821U (en) | 2021-03-31 | 2021-03-31 | Improved generation flexible direct current transmission line tangent tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215107821U true CN215107821U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120661269.XU Active CN215107821U (en) | 2021-03-31 | 2021-03-31 | Improved generation flexible direct current transmission line tangent tower |
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| CN (1) | CN215107821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922433A (en) * | 2021-03-31 | 2021-06-08 | 中国能源建设集团湖南省电力设计院有限公司 | Improved generation flexible direct current transmission line tangent tower |
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2021
- 2021-03-31 CN CN202120661269.XU patent/CN215107821U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922433A (en) * | 2021-03-31 | 2021-06-08 | 中国能源建设集团湖南省电力设计院有限公司 | Improved generation flexible direct current transmission line tangent tower |
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