220kV front and back double-rod type pipe rod

Abstract

The utility model relates to a 220kV front and back double-pole type tubular pole, which comprises a double-pole type tubular pole body used for an overhead transmission line, the double-pole type tubular pole body is composed of a first tubular pole, a second tubular pole and a cross arm, and the first tubular pole and the second tubular pole are arranged in parallel front and back. At least one cross arm is installed at the position, close to the top, between rod bodies of the first pipe rod and the second pipe rod, and the first pipe rod, the second pipe rod and the cross arm form a double-rod type pipe rod body. The utility model has the advantages of simple structure, land resource conservation, compact foundation arrangement and the like.

Description

Technical Field

[0001] The utility model relates to a 220kV front and rear double-pole pipe pole, belonging to the technical field of power transmission and distribution. Background Art

[0002] In the process of transmission line route selection, it is necessary to comprehensively consider factors such as grid structure, line length, topography, urban planning, environmental protection, traffic conditions, construction and operation, and conduct technical and economic comparisons of multiple options to ensure that the line is safe, reliable and economically reasonable. In the process of route selection, it is often encountered that the power corridor is tight and collides with existing buildings. Therefore, it is necessary to scientifically utilize corridor resources, avoid large-scale demolition of houses and existing buildings, and occupy less or no arable land and land with high economic benefits.

[0003] The Changtan-Shenggu 220kV line needs to be routed in the middle of the national highway in the crossing section, and needs to use the central green belt space of the road. The green belt width varies from 1.78m to 2.18m. Due to the narrow space, the foundation column of the traditional single-pole steel pipe pole will exceed the green belt, affecting the lane driving. In order to reduce land occupation, make full use of the line channel, and smoothly implement the 220kV transmission line project, it is necessary to consider the use of compact lines. For this reason, a 220kV front and rear double-pole pipe pole is designed to overcome the above problems. Summary of the invention

[0004] The utility model aims to overcome the shortcomings of the prior art and to provide a 220kV front and rear double-pole pipe pole which has a simple structure, can save land resources and has a compact foundation arrangement.

[0005] The utility model is implemented through the following technical scheme: a 220kV front and rear double-pole pipe pole, comprising a double-pole pipe pole body for overhead power transmission lines, wherein the double-pole pipe pole body is composed of a first pipe pole, a second pipe pole and a cross arm, wherein the first pipe pole and the second pipe pole are arranged in parallel front and back, and at least one cross arm is installed between the rod bodies of the first pipe pole and the second pipe pole near the top, and the first pipe pole, the second pipe pole and the cross arm form the double-pole pipe pole body.

[0006] Preferably, the cross arms are arranged in four layers, and each layer of cross arms from top to bottom is provided with a ground wire hanging point, an upper phase hanging point, a middle phase hanging point and a lower phase hanging point of the conductor in sequence.

[0007] Preferably, there are three cross arms in each layer, which are composed of an outer cross arm at the corner, an inner cross arm at the corner and a straight cross arm. The outer cross arm at the corner and the inner cross arm at the corner are both triangular in structure, the outer cross arm at the corner is the longest, and the straight cross arm is the shortest. Both ends of the three cross arms are connected to the first pipe rod and the second pipe rod respectively.

[0008] Preferably, the cross arm is connected to the first pipe rod and the second pipe rod via flanges.

[0009] Preferably, the cross arm and the first pipe rod and the second pipe rod are all made of steel pipes.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1) The utility model limits the bottom root opening, and adopts the method of front and rear double poles sharing the cross arm, so that the front and rear cross arms jointly bear the unbalanced tension of the front and rear side ground wires existing in the tension steel pipe pole. 2) The diameter of the foundation column is limited. The front and rear sub-poles of the steel pipe pole described in the utility model each adopt a single pile foundation, thereby reducing the diameter of the foundation column. 3) The overall structure is simple. Due to the use of high-strength steel pipes, the slope of the pole body is almost unchanged, the structure is simple, easy to process and shape, and convenient to install, transport and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 for Figure 1 Side view of.

[0014] Figure 3 for Figure 1 Top view of the . DETAILED DESCRIPTION

[0015] In order to enable ordinary technicians in the field to more clearly understand the purpose, technical solutions and advantages of the utility model, the utility model is further explained below in conjunction with the accompanying drawings and embodiments.

[0016] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal" and "vertical" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device or component referred to must have a specific direction and therefore should not be understood as a limitation on the present invention.

[0017] The utility model will be described in detail below with reference to the accompanying drawings: Figure 1-2 As shown, a 220kV front-to-back double-pole type pipe pole includes a double-pole type pipe pole body for overhead transmission lines, wherein the double-pole type pipe pole body is composed of a first pipe pole 11, a second pipe pole 12 and a cross arm 2, wherein the first pipe pole 11 and the second pipe pole 12 are arranged in parallel front to back, and at least one cross arm 2 is installed between the pole bodies of the first pipe pole 11 and the second pipe pole 12 near the top, and the first pipe pole 11, the second pipe pole 12 and the cross arm 2 form a double-pole type pipe pole body.

[0018] The cross arms 2 are arranged in four layers, and each layer of cross arms 2 from top to bottom is provided with a ground wire hanging point 21, an upper phase hanging point 22, a middle phase hanging point 23 and a lower phase hanging point 24 of the conductor in sequence.

[0019] like Figure 2 As shown, the number of cross arms 2 on each layer is three, which are composed of a corner outer cross arm, a corner inner cross arm and a straight cross arm. Figure 3 As shown, the cross arm outside the corner and the cross arm inside the corner are both triangular structures, the cross arm outside the corner is the longest, and the straight cross arm is the shortest, and the two ends of the three cross arms are respectively connected to the first pipe rod 11 and the second pipe rod 12. The cross arm 2 is connected to the first pipe rod 11 and the second pipe rod 12 through a flange 3. The cross arm 2 and the rod bodies of the first pipe rod 11 and the second pipe rod 12 are all made of steel pipes.

[0020] Reference Figure 1 As shown, the bottom diameter of the shaft 1 of the first tube rod 11 and the second tube rod 12 is limited to be less than 1.3 m, and the basic diameter does not exceed 1.8 m.

[0021] The main materials of the rod body 1 and the cross arm 2 of the first pipe rod 11 and the second pipe rod 12 are Q420 high-strength steel pipes. The first pipe rod 11 and the second pipe rod 12 are each connected to a cross arm, and the cross arms intersect at the wire hanging point, so that the two rods jointly support the ground wire cross arm. The first pipe rod 11 and the second pipe rod 12 have separate foundations, and each adopts a single pile foundation, so as to reduce the diameter of the foundation column.

[0022] The 220kV front and rear double-pole pipe pole designed by the utility model enables the front and rear cross arms to jointly bear the unbalanced tension of the front and rear side ground wires existing in the tension steel pipe pole, and the diameter of the bottom steel pipe and the diameter of the foundation column are compressed to the maximum extent. The structure is novel and innovative. It effectively solves the problem of building 220KV lines in areas where pole towers are required in the center of green belts, saves land resources, and realizes the maximum compression of the transmission line corridor width. This tower type creates a new way for the construction of 220KV lines in economically developed areas with particularly crowded passages. Carrying out relevant research has great practical significance and technical innovation.

[0023] The specific embodiments described herein are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A 220kV front and rear double-pole pipe pole, comprising a double-pole pipe pole body for an overhead power transmission line, characterized in that: The double-rod type tubular rod body is composed of a first tubular rod (11), a second tubular rod (12) and a cross arm (2); the first tubular rod (11) and the second tubular rod (12) are arranged in parallel in front and back; at least one cross arm (2) is installed between the rod bodies of the first tubular rod (11) and the second tubular rod (12) at a position close to the top; the first tubular rod (11), the second tubular rod (12) and the cross arm (2) form the double-rod type tubular rod body.

2. The 220kV front and rear double-pole pipe pole according to claim 1, characterized in that: The cross arms (2) are multiple and arranged in four layers, and each layer of cross arms (2) is provided with a ground wire hanging point (21), an upper phase hanging point (22), a middle phase hanging point (23) and a lower phase hanging point (24) of the conductor in sequence from top to bottom.

3. The 220kV front and rear double-pole pipe pole according to claim 2, characterized in that: The number of cross arms (2) on each layer is three, which are respectively composed of an outer cross arm (13) at the corner, an inner cross arm (14) at the corner and a straight cross arm (15). The outer cross arm (13) at the corner and the inner cross arm (14) at the corner are both triangular in structure, the outer cross arm at the corner is the longest and the straight cross arm is the shortest. The two ends of the three cross arms are respectively connected to the first pipe rod (11) and the second pipe rod (12).

4. The 220kV front and rear double-pole pipe pole according to claim 3, characterized in that: The cross arm (2) is connected to the first pipe rod (11) and the second pipe rod (12) via a flange (3).

5. The 220kV front and rear double-pole pipe pole according to claim 4, characterized in that: The cross arm (2) and the first pipe rod (11) and the second pipe rod (12) are all made of steel pipes.

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