Compact double-loop wine cup type terminal tower with horizontally arranged wires and wire hanging method

Abstract

The invention discloses a compact double-loop wine cup type terminal tower with horizontally arranged wires and a wire hanging method, and the terminal tower comprises a bottom tower body, the top and the bottom of which 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 invention belongs to the technical field of power transmission line engineering, and in particular relates to a compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors and a wire hanging method. Background Art

[0002] In recent years, with the rapid development of society, the contradiction of tight land supply has become more and more prominent. In addition, the construction of power grid projects has been continuously promoted, which has compressed the layout space of transmission line corridors to a certain extent, which has put forward higher requirements for the efficient use of land for overhead lines. When overhead lines pass through some urban areas and densely populated areas, it is more common to use compact towers with multiple overhead lines, better land occupation and less environmental disturbance, so as to save the land occupation of transmission corridors to the greatest extent.

[0003] In previous projects, double-circuit iron towers generally use drum (umbrella) type towers, and the conductors are arranged vertically. The floor space can be reduced by optimizing the tower base, which can solve the problem of limited transmission corridors to a certain extent. However, when the conductors of the double-circuit lines are arranged horizontally, the drum (umbrella) type tower cannot meet the requirements of hanging wires. At this time, gate-type towers are often used to deal with such problems. However, the gate-type tower has two main tower bodies and occupies a large area. When the transmission line corridor is crowded and there are dense houses and roads at the outlet, the role of the gate-type tower is obviously difficult to play. Summary of the invention

[0004] The purpose of the present invention is to provide a compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors and a wire hanging method, so as to solve the technical defect in the prior art that the portal tower is difficult to play its role when the transmission line corridor is crowded and the houses and roads at the outlet are densely covered.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, a compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors is provided, comprising: A bottom tower body, with an upper tower body and tower legs mounted on the top and bottom; A lower return side cross arm is installed between the upper tower body and the bottom tower body, and the lower return side cross arm is perpendicular to the axis between the upper tower body and the bottom tower body; A curved arm is installed at the top of the upper tower body, an upper middle cross arm is installed at the top of the curved arm, and a middle ground wire cross arm is installed at the top of the upper middle cross arm; 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 inclinedly provided with a side ground wire crossarm; 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; The middle ground wire hanging points are set at the two ends of the top of the middle ground wire cross arm; The upper conductor hanging point is set at the bottom of the upper middle cross arm; The lower return conductor hanging point is arranged on the lower return side cross arm, and a plurality of lower return conductor hanging points are arranged in sequence along the length direction of the lower return side cross arm; The upper middle phase V string jumper hanging point is arranged at the bottom of the upper middle cross arm and is located on both sides of the upper conductor hanging point.

[0006] 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; 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.

[0007] Furthermore, a plurality of upper conductor hanging points are provided, and a plurality of upper conductor hanging points are arranged in sequence and spaced apart along the longitudinal direction of the upper middle cross arm.

[0008] Furthermore, the plurality of lower conductor hanging points are at the same height.

[0009] Furthermore, the upper center cross arm and the crank arm are connected via a node plate.

[0010] Furthermore, the upper middle phase V string jumper hanging point is arranged at the connection between the inner top of the crank arm and the upper middle cross arm.

[0011] In a second aspect, a method for hanging a line of a compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors is provided, the method being performed using the compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors as described above, comprising: Preset hanging points, and install the side ground wire hanging point, the middle ground wire hanging point, the upper conductor hanging point, the lower conductor hanging point, and the upper middle phase V string jumper hanging point on the preset hanging points; The side ground wire hanging point and the middle ground wire hanging point on the hanging point are at the same height, the upper conductor hanging point and the upper middle phase V string jumper hanging point are at the same height, and the lower conductor hanging point is below the upper middle phase V string jumper hanging point; The wires are installed on the corresponding hanging points and arranged horizontally.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 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 gate type tower, it has the advantages of saving land resources, convenient construction and environmental protection, and 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.

[0013] 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 the hanging points such as the ground wire hanging points and the upper return wire hanging points ensures the safe distance and arrangement between the wires and optimizes the transmission performance of the line.

[0014] 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

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A three-dimensional schematic diagram of a compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors provided by the present invention; Figure 2 A schematic diagram of the installation of a wire hanging point in a compact double-circuit wine glass-shaped terminal tower with horizontally arranged wires provided by the present invention; Figure 3 A schematic diagram of a process flow of a compact double-circuit wine glass-shaped terminal tower hanging method with horizontally arranged conductors provided by the present invention; Among them: 1. Side ground wire cross arm; 2. Middle ground wire cross arm; 3. Upper return side cross arm; 4. Upper return middle cross arm; 5. Lower return side cross arm; 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

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] 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, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] 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", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In recent years, with the rapid development of society, the contradiction of tight land supply has become more and more prominent. In addition, the construction of power grid projects has been continuously promoted, which has compressed the layout space of transmission line corridors to a certain extent, which has put forward higher requirements for the efficient use of land for overhead lines. When overhead lines pass through some urban areas and densely populated areas, it is more common to use compact towers with multiple overhead lines, better land occupation and less environmental disturbance, so as to save the land occupation of transmission corridors to the greatest extent.

[0023] In previous projects, double-circuit iron towers generally use drum (umbrella) type towers, and the conductors are arranged vertically. The floor space can be reduced by optimizing the tower base, which can solve the problem of limited transmission corridors to a certain extent. However, when the conductors of the double-circuit lines are arranged horizontally, the drum (umbrella) type tower cannot meet the requirements of hanging wires. At this time, gate-type towers are often used to deal with such problems. However, the gate-type tower has two main tower bodies and occupies a large area. When the transmission line corridor is crowded and there are dense houses and roads at the outlet, the role of the gate-type tower is obviously difficult to play.

[0024] 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.

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings: like Figure 1-Figure 2 As shown, in a first aspect of an embodiment of the present invention, 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, a plurality of tower legs 9 are arranged along the bottom of the bottom tower body 8, and the plurality of tower legs 9 are connected to the ground foundation by 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, 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 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 installed at both ends of the top of the middle ground wire cross arm 2; the upper return conductor hanging point B is installed at the bottom of the upper return middle cross arm 4; the lower return conductor hanging point C is set on the lower return side cross arm 5, and multiple points are arranged in sequence along the length direction of the lower return side cross arm 5; The upper middle phase V string jumper hanging point T is set at the bottom of the upper middle cross arm 4 and is located on both sides of the upper conductor hanging point B. In the process of hanging the wire, by sequentially setting multiple lower conductor hanging points C at intervals in the length direction of the bottom of the lower side cross arm 5, the problem of horizontal arrangement of the double-circuit conductor is effectively solved, making the spatial layout between multiple conductors more compact and reducing the occupation of the space range. Secondly, the side ground wire cross arm 1, the middle ground wire cross arm 2, the upper side cross arm 3, the upper middle cross arm 4, the lower side cross arm 5, the curved arm 6, the upper tower body 7 and the bottom tower body 8 constitute a wine cup-shaped terminal tower. Compared with the existing portal tower, the wine cup-shaped terminal tower has only one body, occupies a small area, has the advantages of saving land resources and convenient construction, and successfully solves the technical defects of crowded transmission line corridors. Furthermore, in terms of the hanging of the wine cup-shaped terminal tower, the upper conductor jumper adopts the "IVI" type, that is, the side phase conductor adopts the "I" string jumper and the middle phase conductor adopts the double "V" string jumper. Finally, a bird's beak structure is formed between the side ground wire cross arm 1 and the upper return side cross arm 3, which solves the problem of four ground wires on the front and rear sides of the transmission line. The side ground wire hanging point A1 is set at the 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, which can arrange the conductors in a horizontal manner while reducing space occupancy. 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 tower, it has the advantages of saving land resources, convenient construction and environmental protection, and can be applied to projects with corridor restrictions, horizontal arrangement of double-circuit conductors and four ground wires on the front and rear sides of the line.

[0026] There are multiple upper conductor hanging points B, which are arranged in sequence along the length of the upper middle cross arm 4. The hanging points arranged at intervals optimize the spacing between the conductors, reduce electromagnetic interference and loss between the conductors, and improve the power transmission efficiency. At the same time, the line layout can be made more compact and reasonable, and the crossing and interference between the lines can be reduced. Figure 2 As shown, there are preferably three upper-return conductor hanging points B, two of which are installed at the two ends of the upper-return middle crossarm 4, and the other upper-return conductor hanging point B is installed at the bottom of the upper-return middle crossarm 4 and is located in the space formed by the two curved arms 6, so that the conductors can be gathered in the space to avoid space occupation.

[0027] During the installation of the wine glass-stem-shaped terminal tower, the upper return side crossarm 3 is arranged symmetrically, with equal width and no closing. It is connected to the curved arm 6 and the upper return middle crossarm 4 at the root through the node plate, and the diagonal materials are arranged in a cross manner. The side ground crossarm 1 is pre-arched according to 1 / 100 of the cantilever length. The upper return middle crossarm 4 is arranged symmetrically, with the cross-sectional width equal to the crossarm, and is connected to the curved arm 6 by the node plate. The lower return side crossarm 5 is symmetrical, set in the middle of the cup-shaped tower body, with the end closing arrangement, the front diagonal materials are arranged in a triangular shape, and the upper and lower plane diagonal materials are arranged in a cross-shaped manner. The upper return wire hanging point B is respectively set at the end and the lower plane of the middle of the upper return middle crossarm 4, and a construction hole is set in matching. The "I" jumper on the upper return side crossarm 3 is set on the lower end crossbar, and the "V" string jumper on the upper return middle crossarm 4 is set on the node plate connecting the upper return middle crossarm 4 and the curved arm 6, with two on each side. The lower return conductor hanging point C is 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.

[0028] In a second aspect, this embodiment provides a method for hanging a line of a compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors. The method is performed using the compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors as described above. Figure 3 As shown, including: S101, preset hanging points, and install the side ground wire hanging point, the middle ground wire hanging point, the upper conductor hanging point, the lower conductor hanging point, and the upper middle phase V string jumper hanging point on the preset hanging points; illustratively, Figure 2 As shown, hanging points are preset at the middle and top of the wine glass type terminal tower, so that the wires avoid the ground and the house. There are multiple hanging points preset at the top of the terminal tower. The side ground wire hanging point A1, the middle ground wire hanging point A2, the upper wire hanging point B and the upper middle phase V string jumper hanging point T are installed on the top of the wine glass type terminal tower, and the lower wire hanging point C is installed in the middle of the wine glass type terminal tower.

[0029] S102. Place the side ground wire hanging point and the middle ground wire hanging point on the hanging point at the same height, place the upper conductor hanging point and the upper middle phase V string jumper hanging point at the same height, and place the lower conductor hanging point below the upper middle phase V string jumper hanging point; illustratively, after the hanging points are installed, the number of side ground wire hanging points A1 and the number of middle ground wire hanging points A2 are both set to two, and they are all at the same height; the number of upper conductor hanging points B is set to three, and the number of upper middle phase V string jumper hanging points T is set to two, so that the upper conductor hanging point B and the upper middle phase V string jumper hanging point T are at the same height; finally, place the lower conductor hanging point C below the upper middle phase V string jumper hanging point T, and the number of the lower conductor hanging points C is set to three.

[0030] S103, installing the conductors on the corresponding hanging points, and arranging the conductors horizontally. For example, after the installation of each hanging point is completed, the corresponding conductors are installed on the corresponding hanging points, and multiple conductors at the same height are arranged horizontally, and the upper conductor jumper adopts the "IVI" type, that is, the side phase conductor adopts the "I" string jumper, and the middle phase conductor adopts the double "V" string jumper. In summary, through the use of the double-circuit wine glass-stem-shaped terminal tower and the hanging method, the problem of the transmission line tower with horizontal arrangement of double-circuit conductors and four ground wires on the front and back sides of the line can be effectively solved; compared with the traditional gate-type tower, it has the advantages of saving land resources, convenient construction and environmental protection, and can be applied to projects with corridor restrictions, horizontal arrangement of double-circuit conductors and four ground wires on the front and back sides of the line; and 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 the side ground wire hanging point and the upper conductor hanging point ensures the safe distance and arrangement between the conductors, and optimizes the transmission performance of the line. The hanging points set at intervals optimize the spacing between the conductors, reduce electromagnetic interference and losses between the conductors, and improve the transmission efficiency. At the same time, it can make the line layout more compact and reasonable, and reduce crossing and interference between lines.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit its protection scope. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that after reading the present invention, those skilled in the art can 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 protection scope 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), the top and bottom of which are connected to an upper tower body (7) and tower legs (9); A lower return cross arm (5) is installed between the upper tower body (7) and the bottom tower body (8), and the lower return cross arm (5) is axially perpendicular to the upper tower body (7) and the bottom tower body (8); A curved arm (6) is installed at the top of the upper tower body (7), an upper middle cross arm (4) is installed at the top of the curved arm (6), and a middle ground wire cross arm (2) is installed at the top of the upper middle cross arm (4); 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); A side ground wire hanging point (A1) is arranged at one end of the two side ground wire cross arms (1) away from the upper side cross arm (3); The middle ground wire hanging point (A2) is provided at the two ends of the top of the middle ground wire cross arm (2); The upper conductor hanging point (B) is arranged at the bottom of the upper middle cross arm (4); A 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 and at intervals along the entire 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 is 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 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 is characterized in that: A plurality of upper conductor hanging points (B) are provided, and a plurality of upper conductor hanging points (B) are arranged in sequence and spaced apart along the entire length 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 connecting plate between the inner top of the crank arm (6) and the upper middle cross arm (4).

7. A method for hanging wires on a compact double-circuit wine glass-shaped terminal tower with horizontally arranged wires, characterized in that: The method is carried out using the compact double-circuit wine glass-shaped terminal tower with horizontally arranged conductors as described in any one of claims 1 to 6, comprising: Preset hanging points, and install the side ground wire hanging point, the middle ground wire hanging point, the upper conductor hanging point, the lower conductor hanging point, and the upper middle phase V string jumper hanging point on the preset hanging points; The side ground wire hanging point and the middle ground wire hanging point on the hanging point are at the same height, the upper conductor hanging point and the upper middle phase V string jumper hanging point are at the same height, and the lower conductor hanging point is below the upper middle phase V string jumper hanging point; The wires are installed on the corresponding hanging points and arranged horizontally.

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