Heavy ice area 35kV same-tower double-loop pole tower

Abstract

The utility model relates to a 35kV same-tower double-loop tower in a heavy ice area, which comprises a 0-20-degree corner tower, a 20-40-degree corner tower, a 40-60-degree corner tower, a 60-90-degree corner tower, a 0-60-degree terminal tower, a first tangent tower and a second tangent tower. Tower body structures of the 0-20-degree corner tower, the 20-40-degree corner tower, the 40-60-degree corner tower, the 60-90-degree corner tower, the 0-60-degree terminal tower, the linear tower I and the linear tower II respectively comprise an upper tower body, a lower tower body and tower legs; two terrain cross arms are symmetrically arranged at the top of the upper tower body and are used for leading out a line ground wire or an aerial optical cable; and two upper wire cross arms, two middle wire cross arms and two lower wire cross arms are symmetrically arranged on two sides of the upper tower body below the ground wire cross arm from top to bottom in sequence, are vertically arranged at intervals downwards in sequence, and are used for leading out line wires. According to the utility model, the same-tower double-circuit line design in the heavy ice area of the new energy project is realized, and a design scheme with less channel occupation and less investment is provided for the implementation of the new energy project in the heavy ice area.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission line installation design, and specifically relates to a set of 35kV double-circuit pole towers in heavy ice areas. Background Art

[0002] Wind power and photovoltaics, as alternative energy technologies with zero greenhouse gas emissions, are widely considered to have the potential to replace traditional fossil fuels and become the main source of new power generation in the future. The vigorous development of renewable energy, represented by wind power and photovoltaics, has become a global consensus.

[0003] Collector lines play an indispensable role as a power transmission system connecting wind turbines, photovoltaic arrays, and substations. With the current shift in the deployment of new energy, the installed capacity of individual new energy projects in my country is increasing, moving toward the concept of large-scale bases. Both wind power and photovoltaic sites are showing trends of dispersed sites and increased capacity per unit. These trends are significantly impacted by land and environmental policies, leading to prominent issues such as limited land use and limited access to collector lines.

[0004] To address the above issues, technical personnel in this field proposed breaking through the shackles of the original 35kV overhead lines in heavy ice areas that can only be erected in a single circuit. A new double-circuit tower with a conductor cross-section of 240mm² was designed to replace the two single-circuit overhead lines with double-circuit overhead lines on the same tower. This solves the problems of limited land use and tight collection line channels, further saving the cost of the collection line and the line area. Utility Model Content

[0005] The utility model provides a set of 35kV double-circuit pole towers in heavy ice areas.

[0006] The specific technical solution of the utility model is: a set of 35kV double-circuit pole towers in heavy ice areas, including a 0°~20° corner tower, a 20°~40° corner tower, a 40°~60° corner tower, a 60°~90° corner tower, a 0°~60° terminal tower, a straight tower one and a straight tower two, wherein the tower body structures of the 0°~20° corner tower, the 20°~40° corner tower, the 40°~60° corner tower, the 60°~90° corner tower, the 0°~60° terminal tower, the straight tower one and the straight tower two all include an upper tower body, a lower tower body and tower legs; two ground wire cross arms are symmetrically arranged on the top of the upper tower body for leading out the line ground wire or the overhead optical cable OPGW; two upper conductor cross arms, two middle conductor cross arms and two lower conductor cross arms are symmetrically arranged on both sides of the upper tower body below the ground wire cross arm from top to bottom, and are arranged vertically and spaced downward in sequence for leading out the line conductors.

[0007] Furthermore, preferably, the ground wire cross arm, the upper conductor cross arm, the middle conductor cross arm and the lower conductor cross arm are all duckbill-shaped truss structures.

[0008] Furthermore, preferably, the upper tower body and the lower tower body are both quadrangular truss structures.

[0009] Furthermore, preferably, the tower legs are triangular pyramid truss structures.

[0010] Furthermore, preferably, the tower legs consist of four.

[0011] The beneficial effects of the present invention are as follows: the present invention designs a set of 35kV heavy icing area same-tower double-circuit transmission line towers according to mountain conditions, which can adapt to the use conditions of 0~3000m above sea level, basic wind speed 30m / s (10m from the ground), ice thickness 20mm, conductor 1×JL / G1A-240 / 40, ground wire LBGJ-80-20AC or overhead optical cable OPGW-24B1-80, realizes the same-tower double-circuit line design in heavy icing area of ​​new energy projects, provides a design scheme with less channel occupancy and less investment for the implementation of new energy projects in heavy icing area, solves the problem of limited path of 35kV overhead lines in heavy icing area, and has practical significance for wide application of new energy projects in heavy icing area. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an overview of a set of 35kV double-circuit pole towers in heavy ice areas in this utility model;

[0013] Figure 2 This is a table of operating conditions for a set of 35kV double-circuit towers in heavy ice areas in this utility model;

[0014] In the figure: 1-0°~20° corner tower, 2-20°~40° corner tower, 3-40°~60° corner tower, 4-60°~90° corner tower, 5-0°~60° terminal tower, 6-straight tower one, 7-straight tower two, 8-upper tower body, 81-ground wire crossarm, 82-upper conductor crossarm, 83-middle conductor crossarm, 84-lower conductor crossarm, 9-lower tower body, 10-tower leg. DETAILED DESCRIPTION

[0015] In order to make the technical problems and technical solutions solved by the present invention more clearly understood, the present invention 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 only used to explain the present invention and are not intended to limit the present invention.

[0016] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0017] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0018] like Figure 1 Figure 2 As shown, a set of 35kV double-circuit pole towers in heavy ice area includes 0°~20° corner tower 1 (35SJ1D), 20°~40° corner tower 2 (35SJ2D), 40°~60° corner tower 3 (35SJ3D), 60°~90° corner tower 4 (35SJ4D), 0°~60° terminal tower 5 (35SJDD), straight tower 1 6 (35SZ1D) and straight tower 2 7 (35SZ2D), 0°~20° corner tower 1 (35SJ1D), 20°~40° corner tower 2 (35SJ2D), 40°~60° corner tower 3 (35SJ3D), The tower structures of the 60°~90° corner tower 4 (35SJ4D), the 0°~60° terminal tower 5 (35SJDD), the straight tower one 6 (35SZ1D) and the straight tower two 7 (35SZ2D) all include an upper tower body 8, a lower tower body 9 and tower legs 10; two ground wire cross arms 81 are symmetrically arranged on the top of the upper tower body 8 for leading out the line ground wire or the overhead optical cable OPGW; two upper conductor cross arms 82, two middle conductor cross arms 83 and two lower conductor cross arms 84 are symmetrically arranged on both sides of the upper tower body 8 below the ground wire cross arm 81 from top to bottom, and are arranged vertically and spaced downward in sequence for leading out the line conductors.

[0019] The above-mentioned ground wire cross arm 81, upper conductor cross arm 82, middle conductor cross arm 83 and lower conductor cross arm 84 are all duckbill truss structures, and their sizes and component specifications are not necessarily the same, and need to be calculated and determined according to the voltage level and stress conditions.

[0020] The above-mentioned upper tower body 8 and lower tower body 9 are both quadrangular truss structures. The opening width of the upper tower body 8 is smaller than that of the lower tower body 9. Generally, the specifications of the lower structure are larger than those of the upper structure. The specific specifications need to be calculated and determined based on the voltage level and stress conditions.

[0021] The tower legs 10 are triangular pyramid truss structures, and a base tower is composed of four tower legs 10, which serve as the support structure of the base tower. In addition, each section of the base tower structure adopts equilateral angle steel, and each component is connected by bolts and connecting plates.

[0022] This set of towers is suitable for altitudes of 0~3000m, basic wind speed of 30m / s (10m from the ground), ice thickness of 20mm, conductor 1×JL / G1A-240 / 40, ground wire LBGJ-80-20AC or overhead optical cable OPGW-24B1-80.

[0023] The present invention is described in detail above through specific and preferred embodiments, but those skilled in the art should understand that the present invention is not limited to the embodiments described above. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A set of 35kV double-circuit tower in heavy ice area, characterized by: The invention comprises a 0°~20° corner tower (1), a 20°~40° corner tower (2), a 40°~60° corner tower (3), a 60°~90° corner tower (4), a 0°~60° terminal tower (5), a straight tower one (6) and a straight tower two (7), wherein the 0°~20° corner tower (1), the 20°~40° corner tower (2), the 40°~60° corner tower (3), the 60°~90° corner tower (4), the 0°~60° terminal tower (5), the straight tower one (6) and the straight tower two The tower structure of (7) includes an upper tower body (8), a lower tower body (9) and tower legs (10); two ground wire cross arms (81) are symmetrically arranged on the top of the upper tower body (8) for leading out the line ground wire or the overhead optical cable OPGW; two upper conductor cross arms (82), two middle conductor cross arms (83) and two lower conductor cross arms (84) are symmetrically arranged on both sides of the upper tower body (8) below the ground wire cross arm (81) from top to bottom, and are arranged vertically and spaced downward in sequence for leading out the line conductors.

2. The heavy ice zone 35kV double-circuit tower according to claim 1, characterized in that: The ground wire cross arm (81), the upper conductor cross arm (82), the middle conductor cross arm (83) and the lower conductor cross arm (84) are all duckbill-shaped truss structures.

3. The heavy ice zone 35kV double-circuit tower according to claim 1, characterized in that: The upper tower body (8) and the lower tower body (9) are both quadrangular truss structures.

4. The heavy ice zone 35kV double-circuit tower according to claim 1, characterized in that: The tower leg (10) is a triangular pyramid truss structure.

5. The heavy ice zone 35kV double-circuit tower according to claim 1, characterized in that: The tower legs consist of four.

Images