Compact double-loop wine cup type terminal tower with horizontally arranged wires

Abstract

The utility model discloses a compact double-loop wineglass-shaped terminal tower with horizontally arranged leads, which comprises a bottom tower body, and the top and the bottom of the bottom tower body are connected with an upper tower body and tower legs; the lower return edge cross arm is mounted between the upper tower body and the bottom tower body, and the lower return edge cross arm is axially perpendicular to the upper tower body and the bottom tower body; the crank arm is mounted at the top of the upper tower body, an upper-return middle cross arm is mounted at the top of the crank arm, and a middle ground wire cross arm is mounted at the top of the upper-return middle cross arm; and the upper return side cross arms are installed at the two opposite ends of the upper return middle cross arm, and side ground wire cross arms are obliquely arranged at the tops of the upper return side cross arms. Compared with a traditional double-loop drum-shaped tower, the double-loop goblet-shaped terminal tower can effectively solve the problems of horizontal arrangement of double-loop wires and four ground wires on the front side and the rear side of a line, and has the advantages that land resources are saved, construction is convenient, and the environment is protected; the device can be applied to corridor limitation, double-loop wires in horizontal arrangement, and four ground wires at the front and rear sides of a line.

Description

Technical Field

[0001] The utility model belongs to the technical field of power transmission line engineering, and particularly relates to a compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors. Background Art

[0002] In recent years, with the rapid development of society, the contradiction of tight land supply has become increasingly prominent. In addition, the continuous advancement of power grid construction has to some extent compressed the space for the layout of transmission line corridors, which has put higher demands on the efficient use of land for overhead lines. When overhead lines pass through urban areas and densely populated areas, it is more common to use multiple overhead lines, compact towers with a smaller footprint and less environmental impact, thus minimizing the space required for transmission corridors.

[0003] In previous projects, double-circuit towers typically used drum (or umbrella) shaped towers, with conductors arranged vertically. This reduced floor space by optimizing tower spacing, and to some extent, addressed the issue of limited transmission corridors. However, when the conductors of a double-circuit line are arranged horizontally, drum (or umbrella) shaped towers are unable to meet the requirements for hanging the wires. In these cases, portal towers are often used to address this issue. However, portal towers have two main tower bodies and occupy a large area. This makes them less effective when the transmission corridor is congested and the outgoing line is densely populated with houses and roads. Utility Model Content

[0004] The purpose of the utility model is to provide a compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors, so as to solve the technical defect in the prior art that the gate-type tower is difficult to play its role when the transmission line corridor is crowded and there are dense houses and roads at the line outlet.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors, comprising:

[0007] a bottom tower body, the top and bottom of which are connected to the upper tower body and tower legs;

[0008] A lower return cross arm is installed between the upper tower body and the bottom tower body, and the lower return cross arm is perpendicular to the axis between the upper tower body and the bottom tower body;

[0009] A curved arm is installed at the top of the upper tower body, the top of the curved arm is installed with an upper middle cross arm, and the top of the upper middle cross arm is installed with a middle ground cross arm;

[0010] The upper return side crossarm is installed at the two opposite ends of the upper return middle crossarm, and the top of the upper return side crossarm is inclined to set the side ground crossarm;

[0011] The side ground wire hanging point is set at the end of the two side ground wire cross arms away from the upper return side cross arm;

[0012] Middle ground wire hanging points are set at the top ends of the middle ground wire crossarms;

[0013] The upper conductor hanging point is set at the bottom of the upper middle cross arm;

[0014] The lower return conductor hanging point is set on the lower return side cross arm, and multiple points are set in sequence along the length of the lower return side cross arm;

[0015] The upper middle phase V string jumper hanging point is set at the bottom of the upper middle cross arm and is located on both sides of the upper conductor hanging point.

[0016] Furthermore, the side ground line cross arm, the middle ground line cross arm, the upper return side cross arm, the upper return middle cross arm, the lower return side cross arm, the curved arm, the upper tower body and the bottom tower body form a wine glass-shaped structure, and the side ground line cross arm and the upper return side cross arm form a bird's beak-shaped structure;

[0017] Wherein, the side ground wire hanging point is arranged at one end of the two side ground wire cross arms away from the upper return side cross arm, and the two side ground wire hanging points have the same height.

[0018] Furthermore, a plurality of upper conductor hanging points are provided, and the plurality of upper conductor hanging points are sequentially spaced apart along the longitudinal direction of the upper middle cross arm.

[0019] Furthermore, the plurality of lower-loop wire hanging points are at the same height.

[0020] Furthermore, the upper center cross arm and the crank arm are connected via a node plate.

[0021] Furthermore, the upper middle phase V string jumper hanging point is set at the connection between the inner top of the crank arm and the upper middle cross arm.

[0022] Furthermore, there are two curved arms, which are symmetrically arranged with one end of each of the two curved arms being mounted on the top of the upper tower body and the other ends being connected by an upper middle cross arm.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Compared with the traditional double-circuit drum (umbrella) type tower, the double-circuit wine glass-stem type terminal tower can effectively solve the problem of transmission line towers with horizontal arrangement of double-circuit conductors and four ground wires on the front and rear sides of the line. Compared with the traditional portal type tower, it has the advantages of saving land resources, convenient construction and environmental protection. It can be used in projects with corridor restrictions, horizontal arrangement of double-circuit conductors and four ground wires on the front and rear sides of the line.

[0025] 2. The wine glass-shaped and bird-beak-shaped structures make the line layout more compact and reasonable, reduce interference and loss between lines, and improve transmission efficiency. The reasonable setting of hanging points such as the ground wire hanging points and the upper return conductor hanging points ensures the safe distance and arrangement between the conductors, and optimizes the transmission performance of the line.

[0026] 3. The hanging points set at intervals optimize the spacing between the conductors, reduce electromagnetic interference and loss between the conductors, improve the transmission efficiency, and at the same time make the line layout more compact and reasonable, reducing the crossing and interference between the lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a three-dimensional schematic diagram of a compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors provided by the utility model;

[0029] Figure 2 This is a schematic diagram of the installation of the wire hanging point in the compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors provided by the utility model;

[0030] Among them: 1. Side ground wire crossarm; 2. Middle ground wire crossarm; 3. Upper return side crossarm; 4. Upper return middle crossarm; 5. Lower return side crossarm; 6. Curved arm; 7. Upper tower body; 8. Bottom tower body; 9. Tower leg; A1. Side ground wire hanging point; A2. Middle ground wire hanging point; B. Upper return conductor hanging point; C. Lower return conductor hanging point; T. Upper return middle phase V string jumper hanging point. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. These terms are only used to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be understood as indicating or implying relative importance.

[0035] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In recent years, with the rapid development of society, the contradiction of tight land supply has become increasingly prominent. In addition, the continuous advancement of power grid construction has to some extent compressed the space for the layout of transmission line corridors, which has put higher demands on the efficient use of land for overhead lines. When overhead lines pass through urban areas and densely populated areas, it is more common to use multiple overhead lines, compact towers with a smaller footprint and less environmental impact, thus minimizing the space required for transmission corridors.

[0037] In previous projects, double-circuit towers typically used drum (or umbrella) shaped towers, with conductors arranged vertically. This reduced floor space by optimizing tower spacing, and to some extent, addressed the issue of limited transmission corridors. However, when the conductors of a double-circuit line are arranged horizontally, drum (or umbrella) shaped towers are unable to meet the requirements for hanging the wires. In these cases, portal towers are often used to address this issue. However, portal towers have two main tower bodies and occupy a large area. This makes them less effective when the transmission corridor is congested and the outgoing line is densely populated with houses and roads.

[0038] In order to solve the above technical defects, the inventor provides a compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors and a wire hanging method.

[0039] The present invention is described in further detail below with reference to the accompanying drawings:

[0040] like Figure 1-Figure 2As shown, in the first aspect of an embodiment of the utility model, a compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors is provided, comprising a bottom tower body 8, the top and bottom of which are connected to an upper tower body 7 and tower legs 9, a rectangular structure is formed between the upper tower body 7 and the bottom tower body 8, multiple tower legs 9 are arranged along the bottom of the bottom tower body 8, and the multiple tower legs 9 are connected to the ground foundation with anchor bolts. A lower return side cross arm 5 is installed between the upper tower body 7 and the bottom tower body 8, and the lower return side cross arm 5 is axially perpendicular to the upper tower body 7 and the bottom tower body 8; there are two curved arms 6, which are symmetrically arranged, and one end of the two curved arms 6 is installed on the top of the upper tower body 7, and the other ends are connected by the upper return middle cross arm 4, and a middle ground line cross arm 2 is installed on the top of the upper return middle cross arm 4, and the middle ground line cross arm 2 is arranged in the middle of the upper return middle cross arm 4 and is axially perpendicular to the upper return middle cross arm 4, the upper return side cross arm 3 is installed at the opposite ends of the upper return middle cross arm 4, and the two upper return side cross arms 3 are axially perpendicular to the upper return middle cross arm 4, and the side ground line cross arm 1 is obliquely arranged on the top of the two upper return side cross arms 3, the two side ground line cross arms 1 are symmetrically arranged, and the angle between the two side ground line cross arms 1 and the upper return middle cross arm 4 is an obtuse angle. The side ground wire hanging point A1 is installed at the end of the two side ground wire crossarms 1, away from the upper return side crossarm 3; the middle ground wire hanging point A2 is installed at both ends of the top of the middle ground wire crossarm 2; the upper return conductor hanging point B is installed at the bottom of the upper return middle crossarm 4; the lower return conductor hanging point C is set on the lower return side crossarm 5, and multiple hanging points are spaced along the length of the lower return side crossarm 5; the upper return middle phase V string jumper hanging point T is set at the bottom of the upper return middle crossarm 4, and is located on both sides of the upper return conductor hanging point B. During the wiring process, by setting multiple lower return conductor hanging points C at intervals along the length of the bottom of the lower return side crossarm 5, the problem of horizontal arrangement of the dual-circuit conductors is effectively solved, making the spatial layout between the multiple conductors more compact and reducing the space occupied. Secondly, the side ground wire crossarm 1, middle ground wire crossarm 2, upper return side crossarm 3, upper return middle crossarm 4, lower return side crossarm 5, curved arm 6, upper tower body 7, and bottom tower body 8 form a wineglass-shaped terminal tower. Compared to existing portal towers, the wineglass-shaped terminal tower has only one body, occupies a smaller area, saves land resources, and is easy to construct, effectively resolving the technical drawback of congested transmission line corridors. Furthermore, regarding the wiring arrangement of the wineglass-shaped terminal tower, the upper return conductor jumpers adopt an "IVI" pattern, i.e., an "I" string jumper is used for the side phase conductors, and a double "V" string jumper is used for the middle phase conductors. Finally, a bird's beak-shaped structure is formed between the side ground wire crossarm 1 and the upper return side crossarm 3, resolving the problem of four ground wires on the front and rear sides of the transmission line. The side ground wire hanging points A1 are located at the ends of the two side ground wire crossarms 1, away from the upper return side crossarm 3. Both side ground wire hanging points A1 are at the same height, allowing the conductors to be arranged horizontally while reducing space usage.In summary, compared with the traditional double-circuit drum (umbrella) type tower, the double-circuit wine glass-stem type terminal tower can effectively solve the problem of transmission line towers with horizontal arrangement of double-circuit conductors and four ground wires on the front and rear sides of the line; compared with the traditional portal type tower, it has the advantages of saving land resources, convenient construction and environmental protection. It can be used in projects with corridor restrictions, horizontal arrangement of double-circuit conductors and four ground wires on the front and rear sides of the line.

[0041] There are multiple upper conductor hanging points B, which are spaced apart in sequence along the length of the upper middle cross arm 4. The spaced hanging points optimize the spacing between conductors, reduce electromagnetic interference and loss between conductors, and improve power transmission efficiency. At the same time, the line layout can be made more compact and reasonable, reducing crossing and interference between lines. Figure 2 As shown, there are preferably three upper return wire hanging points B, two of which are installed at the two ends of the upper return middle cross arm 4, and the other upper return wire hanging point B is installed at the bottom of the upper return middle cross arm 4 and is located in the space formed by the two curved arms 6, so that the wires can be gathered in the space to avoid space occupation.

[0042] During the installation of the wine glass-stem-shaped terminal tower, the upper side crossarms 3 are symmetrically arranged, with equal width and no closing. At the root, they are connected to the curved arm 6 and the upper middle crossarm 4 through a node plate, and the diagonal materials are arranged in a cross pattern. The side ground wire crossarm 1 is pre-arched according to 1 / 100 of the cantilever length. The upper middle crossarm 4 is symmetrically arranged, with a cross-sectional width equal to the crossarm, and is connected to the curved arm 6 using a node plate. The lower side crossarm 5 is symmetrical and set in the middle of the cup-shaped tower body. The ends are closed, the front diagonal materials are arranged in a triangular shape, and the upper and lower plane diagonal materials are arranged in a cross pattern. The upper conductor hanging points B are set at the ends and the lower plane of the middle of the upper middle crossarm 4, and construction holes are provided. The "I" jumper on the upper side crossarm 3 is set on the lower end crossbar, and the "V" string jumper on the upper middle crossarm 4 is set on the node plate connecting the upper middle crossarm 4 and the curved arm 6, with two on each side. The lower return conductor hanging points C are respectively arranged on the lower plane of the end of the lower return side cross arm 5 and the lower plane of the middle of the partition surface of the bottom tower body 8 corresponding to the lower plane of the cross arm.

[0043] During operation, if Figure 2As shown, wire hanging points are pre-set at the middle and top of the wine-cup-shaped terminal tower, ensuring that the conductors avoid the ground and buildings. Multiple wire hanging points are pre-set at the top of the terminal tower: the side ground wire hanging point A1, the middle ground wire hanging point A2, the upper return wire hanging point B, and the upper return mid-phase V-string jumper hanging point T are installed at the top of the wine-cup-shaped terminal tower. The lower return wire hanging point C is installed at the middle of the wine-cup-shaped terminal tower. After the hanging points are installed, there are two side ground wire hanging points A1 and two middle ground wire hanging points A2, all at the same height. There are three upper return wire hanging points B, and two upper return mid-phase V-string jumper hanging points T, ensuring that the upper return wire hanging points B and the upper return mid-phase V-string jumper hanging points T are at the same height. Finally, the lower return wire hanging point C is positioned below the upper return mid-phase V-string jumper hanging point T, and there are three lower return wire hanging points C. After the installation of each hanging point is completed, the corresponding wires are installed on the corresponding hanging point, and multiple wires at the same height are arranged horizontally. The upper wire jumper adopts the "IVI" type, that is, the side phase wire adopts the "I" string jumper, and the middle phase wire adopts the double "V" string jumper.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the present invention, those skilled in the art may still make various changes, modifications or equivalent substitutions to the specific implementation methods of the invention, but these changes, modifications or equivalent substitutions are all within the scope of protection of the pending claims of the invention.

Claims

1. A compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors, characterized in that: include: A bottom tower body (8) having an upper tower body (7) and tower legs (9) connected at the top and bottom thereof; A lower return side cross arm (5) is installed between the upper tower body (7) and the bottom tower body (8), and the lower return side cross arm (5) is axially perpendicular to the upper tower body (7) and the bottom tower body (8); A curved arm (6) is installed on the top of the upper tower body (7), the top of the curved arm (6) is installed with an upper return middle cross arm (4), and the top of the upper return middle cross arm (4) is installed with a middle ground wire cross arm (2); The upper return side crossarm (3) is installed at two opposite ends of the upper return middle crossarm (4), and the top of the upper return side crossarm (3) is inclinedly provided with a side ground wire crossarm (1); The side ground wire hanging point (A1) is arranged at one end of the two side ground wire cross arms (1) away from the upper return side cross arm (3); The middle ground wire hanging point (A2) is set at the top ends of the middle ground wire cross arm (2); The upper conductor hanging point (B) is set at the bottom of the upper middle cross arm (4); The lower return conductor hanging point (C) is arranged on the lower return side cross arm (5), and a plurality of lower return conductor hanging points (C) are arranged in sequence along the length of the lower return side cross arm (5); The upper middle phase V string jumper hanging point (T) is arranged at the bottom of the upper middle cross arm (4) and is located on both sides of the upper conductor hanging point (B).

2. The compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors according to claim 1, characterized in that: The side ground line cross arm (1), the middle ground line cross arm (2), the upper return side cross arm (3), the upper return middle cross arm (4), the lower return side cross arm (5), the curved arm (6), the upper tower body (7) and the bottom tower body (8) form a wine glass-shaped structure, and the side ground line cross arm (1) and the upper return side cross arm (3) form a bird's beak-shaped structure. The side ground wire hanging point (A1) is arranged at one end of the two side ground wire cross arms (1) away from the upper return side cross arm (3), and the two side ground wire hanging points (A1) are at the same height.

3. The compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors according to claim 1, characterized in that: A plurality of upper conductor hanging points (B) are provided, and the plurality of upper conductor hanging points (B) are sequentially spaced along the longitudinal direction of the upper middle cross arm (4).

4. The compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors according to claim 1, characterized in that: The plurality of lower conductor hanging points (C) are at the same height.

5. The compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors according to claim 1, characterized in that: The upper middle cross arm (4) and the crank arm (6) are connected via a node plate.

6. The compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors according to claim 1, characterized in that: The upper middle phase V string jumper hanging point (T) is arranged at the connection plate between the inner top of the crank arm (6) and the upper middle cross arm (4).

7. The compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors according to claim 1, characterized in that: There are two curved arms (6), which are symmetrically arranged with respect to each other, and one end of the two curved arms (6) is mounted on the top of the upper tower body (7), and the other ends are connected by an upper middle cross arm (4).

Images