Bird nest building prevention device for power tower pole

Abstract

The invention relates to a bird nest building prevention device for an electric power tower pole, and the device comprises a middle-phase cross arm prevention structure which comprises a middle-phase cross arm main body and a U-shaped mixed curved surface substructure, the middle-phase cross arm main body is used for being transversely installed at the center position of the electric power tower pole, and the U-shaped mixed curved surface substructure covers the middle-phase cross arm main body; the side-phase cross arm prevention and control structure comprises side-phase cross arm bodies and arc-shaped plates, the side-phase cross arm bodies are used for being installed on the two sides of the power tower pole, and the arc-shaped plates are longitudinally installed near the tail ends of the side-phase cross arm bodies. Compared with the prior art, the method has the advantages that bird staying and nesting are remarkably reduced, and the power supply reliability of the power tower pole is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bird nest prevention and control structures, and in particular to a bird nest prevention device for an electric power tower. Background Art

[0002] In modern power systems, poles and towers, as an important part of transmission lines, undertake the key task of transmitting electric energy. However, the fault problems caused by birds nesting on poles and towers are particularly prominent. Taking a certain area as an example, so far this year, there have been 38 bird-caused tripping incidents on 10-35kV lines of various power supply companies in the local power grid, including 3 on 35kV lines and 31 on 10kV lines. A total of 17 reclosing failures occurred, and the reclosing failure rate was as high as 44.7%. The number of bird-caused tripping at the beginning of 2023 is basically the same as the number for the whole year of 2018-2019, and it has also increased slightly from 35 times in January-March 2022. If the bird damage problem is not discovered and dealt with in time, it will pose a great threat to the safe and stable operation of overhead lines and equipment in the jurisdiction.

[0003] Existing power towers are often affected by bird nesting during long-term operation. Figure 4 and 5 As shown in the figure, on the cat-head-shaped towers and drum-shaped towers, bird nests are piled up on the cross arms (the parts shown in the rectangular boxes) and insulators of the towers, which can easily cause electrical short circuits, fires, equipment damage and other faults, seriously threatening the safe and stable operation of the power grid. Traditional prevention and control methods include installing bird repellers, regular cleaning, etc. A single bird prevention method is not effective, and multiple bird prevention methods are usually used in combination, and the effect is also limited.

[0004] Therefore, in order to solve the problem of bird nesting on the cross arms of the tower, it is urgent to improve the cross arms to deal with the problem of bird nesting. Summary of the invention

[0005] The purpose of the present invention is to provide a bird nest prevention device for an electric power tower pole, which can prevent birds from building nests on the middle phase cross arm and the side phase cross arm.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A bird's nest prevention device for an electric power tower, comprising:

[0008] Middle phase cross arm prevention and control structure: including a middle phase cross arm body and a U-shaped mixed curved surface substructure, wherein the middle phase cross arm body is used to be installed laterally at the center of the power tower, and the U-shaped mixed curved surface substructure is covered on the middle phase cross arm body;

[0009] Side phase cross arm prevention and control structure: includes a side phase cross arm body and an arc plate. The side phase cross arm body is used to be installed on both sides of the power tower, and the arc plate is longitudinally installed near the end of the side phase cross arm body.

[0010] Furthermore, the mixed curved surface substructure includes an arc top and two inclined plates, and the two inclined plates are respectively installed at two opposite openings of the arc top.

[0011] Furthermore, the angle between the inclined plate and the horizontal plane ranges from 30° to 60°.

[0012] Furthermore, the arc top is tangent to the two inclined plates.

[0013] Furthermore, the middle phase cross arm prevention and control structure also includes a top fixed bracket, one end of which is connected to the arc top, and the other end is connected to the middle phase cross arm body, for supporting the U-shaped mixed curved surface substructure.

[0014] Furthermore, the space between the arc-shaped plate and the side phase cross arm body is filled with lightweight material.

[0015] Furthermore, the U-shaped hybrid curved surface substructure and the curved plate are both made of lightweight and high-strength materials, including titanium alloy materials and composite materials.

[0016] Furthermore, the U-shaped mixed curved surface substructure and the curved plate are sprayed with a smooth coating.

[0017] Furthermore, the middle phase cross arm body and the side phase cross arm body are both made of metal material.

[0018] Furthermore, the U-shaped mixed curved surface substructure is covered on the middle phase cross arm body by bolts.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) In the middle phase cross arm control structure of the present invention, the middle phase cross arm main body, which is easy for birds to stay and build nests, is covered with a U-shaped mixed curved surface substructure, which can reduce the stability of birds staying and nesting. At the same time, the arc plate in the side phase cross arm control structure is installed at the end inside the side phase cross arm main body, making it difficult for branches and the side phase cross arm main body to form a stable spatial structure, thereby preventing birds from building nests.

[0021] (2) The U-shaped mixed curved surface substructure of the present invention is provided with an arc top and an inclined plate set at a certain angle to the horizontal plane, which can reduce the number of birds staying, and the U-shaped mixed curved surface substructure and the arc plate are sprayed with a smooth coating to reduce friction and further prevent birds from nesting.

[0022] (3) The device of the present invention is arranged at a key position of the tower where birds can easily stay and build nests. It is highly targeted, does not need to change the transmission line layout of the power tower, does not affect the original stability of the tower, is easy to build, and has a significant prevention and control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a device for preventing and controlling bird's nest failures according to the present invention;

[0024] Figure 2 It is a plan view of the middle phase cross arm prevention structure of the present invention, wherein (a) is a side view and (b) is a front view;

[0025] Figure 3 It is a plan view of the side cross arm prevention structure of the present invention, wherein (a) is a side view and (b) is a top view;

[0026] Figure 4 This is a schematic diagram of a cat-head-shaped pole tower according to the present invention;

[0027] Figure 5 It is a schematic diagram of the drum-shaped tower of the present invention. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0029] 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.

[0030] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example 1

[0033] This embodiment provides a bird nest prevention device for a power tower, such as Figure 1As shown, the device includes a middle phase cross-arm prevention and control structure 1 located on the left and a side phase cross-arm prevention and control structure 2 located on the right. The middle phase cross-arm prevention and control structure 1 is used to be installed horizontally at the center of the power tower, and the side phase cross-arm prevention and control structure 2 is used to be installed on the side phase cross-arm prevention and control structures 2 on both sides of the power tower.

[0034] like Figure 2 As shown in the side view and the front view in (a) and (b), the middle phase crossarm prevention and control structure 1 includes a middle phase crossarm body 11 made of metal material, a U-shaped mixed curved surface substructure 12 and a top fixed bracket 13. The U-shaped mixed curved surface substructure 12 is covered on the middle phase crossarm body 11 by bolts, and the top fixed bracket 13 is installed between the inner top of the U-shaped mixed curved surface substructure 12 and the middle phase crossarm body 11 to support the U-shaped mixed curved surface substructure 12.

[0035] The U-shaped mixed curved surface substructure 12 includes an arc top 121 and two inclined plates 122. The two inclined plates 122 are respectively installed at two opposite openings of the arc top 121. The arc top 121 is tangent to the inclined plates 122 and the angle between the inclined plates 122 and the horizontal plane is in the range of 30°-60°, which can effectively prevent birds from staying and bird droppings from attaching, and reduce the possibility of power outages. The U-shaped mixed curved surface substructure 12 is made of lightweight and high-strength materials, including titanium alloy materials and composite materials, and a smooth coating (Teflon, etc.) is sprayed on the material to improve the surface smoothness, so that a stable structure cannot be formed between the branches and the pole tower, which can further reduce the possibility of birds staying, building bird nests, and bird droppings from attaching, thereby achieving the purpose of preventing and controlling bird nest failures.

[0036] The middle phase cross arm prevention and control structure 1 is suitable for tower poles such as cat head shaped towers and wine glass shaped towers.

[0037] like Figure 3 As shown in the side view and top view of Figures (a) and (b), the side phase cross arm prevention structure 2 includes a side phase cross arm body 21 made of metal material and a curved plate 22 made of lightweight and high-strength material. The structure is to replace the shorter longitudinal rod near the end of the existing side phase cross arm body 21 with a curved plate 22, increase the distance between the side phase cross arm body 21 and the side phase steel structure, make it difficult for branches and side phases to form a stable spatial structure, and prevent birds from nesting. The distance between the two longitudinal rods. In addition, the space between the curved plate 22 and the side phase cross arm body 21 is covered with a lightweight material.

[0038] The side phase cross arm prevention structure 2 can be applied to towers with similar cross arm ranges of three-phase conductors, such as drum towers and ram's horn towers.

[0039] Example 2

[0040] This embodiment provides a bird's nest prevention device for power towers. The middle phase cross arm prevention structure 1 and the side phase cross arm prevention structure 2 in the device can be used separately in power towers according to the shapes of different towers.

[0041] The rest is the same as in Example 1.

[0042] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0043] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A bird's nest prevention device for a power tower, characterized in that: include: A middle phase cross arm prevention and control structure (1): comprising a middle phase cross arm main body (11) and a U-shaped mixed curved surface substructure (12), wherein the middle phase cross arm main body (11) is used for being installed transversely at the center position of a power tower pole, and the U-shaped mixed curved surface substructure (12) covers the middle phase cross arm main body (11); The side phase cross arm prevention and control structure (2) comprises a side phase cross arm body (21) and an arc plate (22), wherein the side phase cross arm body (21) is used to be installed on both sides of the power tower, and the arc plate (22) is longitudinally installed near the end of the side phase cross arm body (21).

2. The bird nest prevention device for power tower according to claim 1, characterized in that: The mixed curved surface substructure (12) comprises an arc top (121) and two inclined plates (122), wherein the two inclined plates (122) are respectively installed at two opposite openings of the arc top (121).

3. The bird nest prevention device for power tower according to claim 2, characterized in that: The angle between the inclined plate (122) and the horizontal plane is in the range of 30°-60°.

4. The bird nest prevention device for power tower according to claim 2, characterized in that: The arc top (121) is tangent to the two inclined plates (122).

5. The bird nest prevention device for power tower according to claim 2, characterized in that: The middle phase cross arm prevention and control structure (1) further comprises a top fixing bracket (13), one end of the top fixing bracket (13) is connected to the arc top (121), and the other end is connected to the middle phase cross arm body (11), and is used to support the U-shaped mixed curved surface substructure (12).

6. The bird nest prevention device for power tower according to claim 1, characterized in that: The space between the arc-shaped plate (22) and the side cross arm body (21) is filled with a light material.

7. The bird nest prevention device for power tower according to claim 1, characterized in that: The U-shaped mixed curved surface substructure (12) and the curved plate (22) are both made of lightweight and high-strength materials, including titanium alloy materials and composite materials.

8. The bird nest prevention device for power tower according to claim 1, characterized in that: The U-shaped mixed curved surface substructure (12) and the curved plate (22) are both sprayed with a smooth coating.

9. The bird nest prevention device for power tower according to claim 1, characterized in that: The middle phase cross arm body (11) and the side phase cross arm body (21) are both made of metal material.

10. The bird nest prevention device for power tower according to claim 1, characterized in that: The U-shaped mixed curved surface substructure (12) is covered on the middle phase cross arm body (11) by bolts.

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