CN221546552U - Four-loop pi-joint tower for same tower of power transmission line - Google Patents
Four-loop pi-joint tower for same tower of power transmission line Download PDFInfo
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- CN221546552U CN221546552U CN202322888558.5U CN202322888558U CN221546552U CN 221546552 U CN221546552 U CN 221546552U CN 202322888558 U CN202322888558 U CN 202322888558U CN 221546552 U CN221546552 U CN 221546552U
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- 241000405070 Percophidae Species 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
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- 239000010959 steel Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 description 9
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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Abstract
The utility model relates to a power transmission line same-tower four-loop pi-type connection tower, which comprises an upper double-loop circuit tower section, a lower tower body and tower legs, wherein the lower double-loop circuit tower section, the lower double-loop circuit tower section and the tower legs are sequentially arranged below the upper double-loop circuit tower section; the lower double-circuit tower section is provided with a pi-junction line bracket, and the pi-junction line bracket consists of two pi-junction line ground wire cross arms and six pi-junction line lead wire hanging brackets; the two pi-shaped wiring circuit ground wire cross arms are symmetrically arranged on two sides of the two-section tower body and are arranged on the two third-wire cross arms at the uppermost part and are used for leading out pi-shaped wiring circuit ground wires from the side surfaces; the six pi-shaped wiring line wire hanging brackets are correspondingly arranged on the six third-wire cross arms and are used for leading out pi-shaped wiring line wires. The utility model effectively solves the problem that the pi wiring circuit of the four-circuit transmission line on the same tower is difficult to lead out.
Description
Technical Field
The utility model belongs to the technical field of installation design of transmission lines, and particularly relates to a power transmission line same-tower four-loop pi-joint tower.
Background
With the rapid development of power grid construction, a power transmission line corridor is more and more tense, particularly, a line in an economically developed area is limited by topography and topography, in the process of line construction, the proportion of clear and reimbursement cost such as house removal, tree felling and the like caused by corridor land is larger and larger in project investment, and for a four-circuit line of the same tower, two circuits or one circuit of the line pi is always required to be disconnected and connected with other lines, and a design scheme that a front branch tower and a rear branch tower are adopted for connecting the line pi is usually adopted, so that the investment is greatly increased; therefore, in order to save corridor land and reduce the construction quantity of the power transmission towers, and further reduce project investment, the same tower multi-circuit power transmission technology is adopted to mount multi-circuit lines on the same tower so as to realize the development trend of large capacity and small occupied area.
In order to solve the above problems, a plurality of solutions are proposed by a person skilled in the art, wherein, as in CN 203729648U chinese patent, a 66 kv common tower four-loop double-T-junction branching tower is disclosed, and in particular, a 66 kv common tower four-loop double-T-junction branching tower is related, which is suitable for a high-voltage transmission grid, and the branching tower includes a tower head, a tower body and a tower seat, wherein, a three-phase upper layer double-loop phase line cross arm and a three-phase lower layer double-loop phase line cross arm are sequentially arranged on the tower body from top to bottom in the same direction, a three-phase double-loop double-T-junction branching cross arm perpendicular to the direction of the upper layer double-loop phase line cross arm or the lower layer double-loop phase line cross arm is further arranged on the tower body, and the double-loop double-T-junction branching cross arm and the lower layer double-loop phase line cross arm are sequentially distributed from bottom to top, wherein, a represents the double-loop double-T-junction branching cross arm and the lower layer double-loop phase line cross arm is sequentially distributed according to abab. The double-circuit double-T branch circuit of the lower layer of the four-circuit double-T branch circuit can be directly connected to the branch cross arm on the side face of the tower body by the main circuit lead wire, and the branch cross arm is connected to the double-circuit T branch circuit, so that the consumption of tower materials can be reduced, the tower height is reduced, the structural design is simple and reasonable, the operation is safe and reliable, and the engineering cost is effectively reduced.
The application provides a design scheme of a same-tower four-loop pi-junction tower, which directly changes a base tower near a pi junction into a pi-junction tower to solve the problem of a pi-junction circuit.
Disclosure of utility model
In order to solve the technical problems, the utility model designs a power transmission line same-tower four-loop pi-joint tower.
The utility model provides a power transmission line same-tower four-loop pi-junction tower.
The specific technical scheme of the utility model is as follows: the power transmission line same-tower four-loop pi-shaped connection tower comprises an upper double-loop circuit tower section, a lower tower body and tower legs, wherein the lower double-loop circuit tower section, the lower tower body and the tower legs are sequentially arranged below the upper double-loop circuit tower section; the lower double-circuit tower section is provided with a pi-junction line bracket, and the pi-junction line bracket consists of two pi-junction line ground wire cross arms and six pi-junction line lead wire hanging brackets; the two pi-shaped wiring circuit ground wire cross arms are symmetrically arranged on two sides of the two-section tower body and are arranged on the two third-wire cross arms at the uppermost part and are used for leading out pi-shaped wiring circuit ground wires from the side surfaces; the six pi-shaped wiring line wire hanging brackets are correspondingly arranged on the six third-wire cross arms and are used for leading out pi-shaped wiring line wires.
Further, the upper double-circuit tower section consists of two first ground wire cross arms, six second wire cross arms and a section of tower body; the first ground wire cross arms are symmetrically arranged at the top end of the first tower body and used for leading out the ground wire of the circuit; six second wire cross arms are symmetrically arranged on two sides of a section of tower body in pairs, and are vertically arranged at intervals downwards in sequence and used for leading out line wires.
Further, the first ground wire cross arm, the second wire cross arm, the third wire cross arm and the pi wiring circuit ground wire cross arm are of duckbill truss structures.
Further, the first section tower body, the second section tower body and the lower tower body are all of quadrangular truss structures.
Further, the pi-shaped wiring circuit lead hanging bracket is of an irregular quadrangular truss structure.
Further, the tower legs are triangular pyramid truss structures.
Further, the number of the tower legs is 4.
Furthermore, each section of the tower structure adopts equilateral angle steel, and all parts are connected through bolts and connecting plates.
The beneficial effects of the utility model are as follows: according to the utility model, the base tower near the pi junction is set as the pi junction tower, the pi junction tower is additionally provided with the pi junction circuit support, so that the pi junction circuit ground wire and the pi junction circuit lead can be led out from the pi junction circuit ground wire cross arm and the pi junction circuit lead hanging wire support respectively, and then the pi junction circuit lead is connected with the original circuit through the drainage wire, so that the connection of the pi junction circuit with four circuits of the same tower is realized simply and conveniently, the problem of difficult lead-out of the pi junction circuit of the four circuits of the same tower is effectively solved, a design scheme with simple structure and less investment is provided for the implementation of the pi junction scheme on one side or two sides of the four circuits of the same tower, and the design scheme of the pi junction of the four circuits of the same tower has practical significance in wide application.
Drawings
Fig. 1 is a front view of a power transmission line common-tower four-loop pi-joint tower according to the present utility model;
Fig. 2 is a schematic diagram of wiring of a power transmission line in-tower four-loop pi-junction tower according to the present utility model;
Fig. 3 is a top view of the wiring of the pi wiring ground wire;
fig. 4 is a top view of the wiring of the pi wiring circuit wire;
FIG. 5 is a top view of the line connection of the line ground;
fig. 6 is a top view of a line connection of a line conductor.
In the figure: 1-an upper double-circuit tower section, 11-a first ground wire cross arm, 12-a second lead cross arm and 13-a tower body; 2-lower double-circuit tower sections, 21-third wire cross arms and 22-second tower bodies; the device comprises a 3-pi wiring path bracket, a 31-pi wiring path ground wire cross arm and a 32-pi wiring path lead wire hanging bracket; 4-lower tower body; 5-tower legs; 61-pi wiring circuit ground wire, 62-pi wiring circuit lead, 63-drainage wire, 64-original circuit, 65-circuit ground wire and 66-circuit lead.
Detailed Description
In order to make the technical problems and technical schemes solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, a power transmission line same-tower four-loop pi connection tower comprises an upper double-loop circuit tower section 1, a lower double-loop circuit tower section 2, a lower tower body 4 and tower legs 5 which are sequentially arranged below the upper double-loop circuit tower section 1, wherein:
The upper double-circuit tower section 1 consists of two first ground wire cross arms 11, six second wire cross arms 12 and a section of tower body 13; the two first ground wire cross arms 11 are symmetrically arranged at the top end of the first tower body 13 and are used for leading out a circuit ground wire 65; the six second wire cross arms 12 are symmetrically arranged on two sides of the first tower body 13 in pairs, and are vertically arranged at intervals downwards in sequence for leading out the line wires 66.
The lower double-circuit tower section 2 consists of six wire cross arms 21 and two sections of tower bodies 22, wherein the six wire cross arms 21 are symmetrically arranged on two sides of the two sections of tower bodies 22 in pairs and are vertically arranged at intervals downwards in sequence; the lower double-circuit tower section 2 is provided with a pi-junction line bracket 3, and the pi-junction line bracket 3 consists of two pi-junction line ground wire cross arms 31 and six pi-junction line lead wire hanging brackets 32; the two pi wiring circuit ground wire cross arms 31 are symmetrically arranged on two sides of the two-section tower body 22 and are arranged on the two three-wire cross arms 21 at the uppermost part and are used for leading out pi wiring ground wires 61 from the side surfaces; six pi-connection line lead wire hanging brackets 32 are correspondingly arranged on six third lead wire cross arms 21 and are used for leading out pi-connection line lead wires 62.
The first ground wire cross arm 11, the second wire cross arm 12, the third wire cross arm 21 and the pi-shaped wiring circuit ground wire cross arm 31 are all duckbill truss structures, and the sizes and the component specifications of the duckbill truss structures are not necessarily the same, and the duckbill truss structures are specifically calculated and determined according to the voltage level and the stress condition.
The first-section tower body 13, the second-section tower body 22 and the lower tower body 4 are all of quadrangular truss structures; the pi-shaped wiring circuit lead wire hanging bracket 32 is of an irregular quadrangular truss structure, the opening width and the component specification of the pi-shaped wiring circuit lead wire hanging bracket are different, the opening width of the first section of tower body 13 is smaller than that of the second section of tower body 22, and the opening width of the second section of tower body 22 is smaller than that of the lower section of tower body 4; the lower structure specification is generally larger than the upper structure specification, and the lower structure specification is specifically calculated and determined according to the voltage class and the stress condition.
The tower legs 9 are triangular pyramid truss structures, and a foundation tower is composed of 4 tower legs 9 and is used as a lower supporting structure of the iron tower.
In addition, each section of the tower structure adopts equilateral angle steel, and all parts are connected through bolts and connecting plates.
As shown in fig. 2 to 6, a line connection of a power transmission line and four loops pi-junction tower is as follows: the line ground wire 65 is connected to the first ground wire cross arm 11 and the line lead 66 is connected to the second lead cross arm; the pi wiring line ground wire 61 is connected to the pi wiring line ground wire cross arm 31 hanging wire, the pi wiring line lead 62 is connected to the pi wiring line lead hanging wire bracket 32 hanging point, and the pi wiring line lead 62 is connected with the original line 64 through the drainage wire 63. The method realizes the connection of the four-loop circuit of the same tower, effectively solves the problem of difficult lead-out of the n-junction circuit of the four-loop transmission circuit of the same tower, provides a design scheme with simple structure and low investment for the implementation of the n-junction scheme of the single side or double sides of the four-loop transmission circuit of the same tower, and has wide practical significance for the n-junction design scheme of the four-loop transmission circuit of the same tower.
While the utility model has been described in detail in connection with specific and preferred embodiments, it will be understood by those skilled in the art that the utility model is not limited to the foregoing embodiments, but is intended to cover modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (8)
1. The power transmission line same-tower four-loop pi-shaped connection tower comprises an upper double-loop circuit tower section (1) and a lower double-loop circuit tower section (2), a lower tower body (4) and tower legs (5) which are sequentially arranged below the upper double-loop circuit tower section, and is characterized in that the lower double-loop circuit tower section (2) consists of six wire cross arms (21) and two sections of tower bodies (22), and the six wire cross arms (21) are symmetrically arranged at two sides of the two sections of tower bodies (22) in pairs and are sequentially arranged at intervals downwards vertically; the lower double-circuit tower section (2) is provided with a pi-junction line bracket (3), and the pi-junction line bracket (3) consists of two pi-junction line ground wire cross arms (31) and six pi-junction line wire hanging brackets (32); the two pi-shaped wiring circuit ground wire cross arms (31) are symmetrically arranged on two sides of the two-section tower body (22) and are arranged on the uppermost two third-wire cross arms (21) and are used for leading out pi-shaped wiring circuit ground wires (61) from the side surfaces; six pi-connection line lead wire hanging brackets (32) are correspondingly arranged on six third lead wire cross arms (21) and are used for leading out pi-connection line leads (62).
2. The transmission line co-tower four-loop pi junction tower of claim 1, wherein: the upper double-circuit tower section (1) consists of two first ground wire cross arms (11), six second wire cross arms (12) and a section of tower body (13); the two first ground wire cross arms (11) are symmetrically arranged at the top end of the first tower body (13) and are used for leading out a circuit ground wire (65); six second wire cross arms (12) are symmetrically arranged on two sides of a section of tower body (13) in pairs, and are vertically arranged at intervals downwards in sequence and used for leading out circuit wires (66).
3. The transmission line co-tower four-loop pi junction tower of claim 2, wherein: the first ground wire cross arm (11), the second wire cross arm (12), the third wire cross arm (21) and the pi-shaped wiring circuit ground wire cross arm (31) are of duckbill truss structures.
4. The transmission line co-tower four-loop pi junction tower of claim 2, wherein: the first-section tower body (13), the second-section tower body (22) and the lower-section tower body (4) are all of quadrangular truss structures.
5. The transmission line co-tower four-loop pi junction tower of claim 1, wherein: the pi-shaped wiring circuit lead wire hanging bracket (32) is of an irregular quadrangular truss structure.
6. The transmission line co-tower four-loop pi junction tower of claim 1, wherein: the tower legs (9) are triangular pyramid truss structures.
7. The transmission line co-tower four-loop pi junction tower of claim 6, wherein: the number of the tower legs (9) is 4.
8. The transmission line co-tower four-loop pi junction tower of claim 2, wherein: the tower has the advantages that all sections of structures adopt equilateral angle steel, and all parts are connected through bolts and connecting plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322888558.5U CN221546552U (en) | 2023-10-27 | 2023-10-27 | Four-loop pi-joint tower for same tower of power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322888558.5U CN221546552U (en) | 2023-10-27 | 2023-10-27 | Four-loop pi-joint tower for same tower of power transmission line |
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| Publication Number | Publication Date |
|---|---|
| CN221546552U true CN221546552U (en) | 2024-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322888558.5U Active CN221546552U (en) | 2023-10-27 | 2023-10-27 | Four-loop pi-joint tower for same tower of power transmission line |
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| Country | Link |
|---|---|
| CN (1) | CN221546552U (en) |
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- 2023-10-27 CN CN202322888558.5U patent/CN221546552U/en active Active
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