Bird damage prevention device for capacitor tower of converter station

Abstract

The invention relates to a bird damage prevention device for a capacitor tower of a converter station. The bird damage prevention device comprises a cuboid frame and a net-shaped composite insulator. The top end of the cuboid frame is connected with an upper rack of the converter station capacitor tower, the bottom end of the cuboid frame is connected with a lower rack of the converter station capacitor tower, and the net-shaped composite insulator is arranged on the peripheral wall of the cuboid frame in a surrounding mode so as to cover the interlayer of the converter station capacitor tower; the net-shaped composite insulator is made of a composite material; through the arrangement, the capacitor tower of the converter station is protected, birds are prevented from entering the capacitor tower, and meanwhile heat dissipation and the service life of the capacitor tower of the converter station are not affected.

Description

Technical Field

[0001] The present invention relates to the technical field of power equipment, and in particular to a bird damage prevention device for a converter station capacitor tower. Background Art

[0002] With the current increasingly good ecological environment, the living conditions of birds have been greatly improved, the number of birds has gradually increased, and the activity range has become wider and wider. Statistical data shows that bird damage is one of the main disasters threatening the safe operation of the power grid. In China, bird damage faults have accounted for the second place in the total faults of transmission lines.

[0003] Converter stations are mostly located in remote areas, with frequent bird activities in the surrounding areas and an open structure. Therefore, the probability of bird damage is relatively high. Once a bird falls into the capacitor tower, it is very likely that a short circuit will occur between the capacitor joints and between the tower layers, etc., which will cause the unbalanced current protection of the capacitor tower to act, and then lead to the tripping of the filter. If the filter bank cannot meet the absolute minimum filter requirements at this time, the power of the DC system will drop, resulting in load loss, and even DC blocking may occur, endangering the operation of the capacitor device and affecting the effective and safe operation of the power grid.

[0004] However, at present, for the prevention of bird damage to converter station capacitor towers, a method of spraying insulating materials is adopted. However, this method is not only time-consuming and laborious with poor effects, but may also affect the heat dissipation of the capacitor and reduce its service life. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a bird damage prevention device for a converter station capacitor tower, which has the advantages of being easy to install; at the same time, it can effectively prevent birds from entering the interior of the capacitor tower, and at the same time, it does not affect the heat dissipation and service life of the converter station capacitor tower.

[0006] The above invention purpose of the present invention is achieved through the following technical solutions: A bird damage prevention device for a converter station capacitor tower includes a cuboid frame and a mesh composite insulator; the top end of the cuboid frame is connected to the upper platform of the converter station capacitor tower, the bottom end of the cuboid frame is connected to the lower platform of the converter station capacitor tower, and the mesh composite insulator is disposed around the outer peripheral wall of the cuboid frame to cover the space between the layers of the converter station capacitor tower; the mesh composite insulator is made of a composite material.

[0007] Preferably, for the bird damage prevention device for a converter station capacitor tower provided by the present invention, a layer of RTV coating is applied on the outer surface of the mesh composite insulator.

[0008] Preferably, for the anti-bird damage device for a converter station capacitor tower provided by the present invention, the mesh composite insulator includes a plurality of insulating cylindrical bars, and the plurality of insulating cylindrical bars are all disposed around the rectangular parallelepiped frame. The plurality of insulating cylindrical bars are spaced along the height direction of the rectangular parallelepiped frame, and a preset distance is provided between every two adjacent insulating cylindrical bars.

[0009] Preferably, for the anti-bird damage device for a converter station capacitor tower provided by the present invention, the range of the preset distance is 2 cm - 4 cm.

[0010] Preferably, for the anti-bird damage device for a converter station capacitor tower provided by the present invention, the cross-sectional diameter range of the insulating cylindrical bar is 4 mm - 6 mm.

[0011] Preferably, for the anti-bird damage device for a converter station capacitor tower provided by the present invention, the rectangular parallelepiped frame includes at least four insulating support columns. The four insulating support columns enclose a rectangular parallelepiped shape. The tops of the four insulating support columns are all connected to the upper platform frame, and the bottoms of the four insulating support columns are all connected to the lower platform frame.

[0012] Preferably, for the anti-bird damage device for a converter station capacitor tower provided by the present invention, the top and bottom of the insulating support column are respectively connected to the upper platform frame and the lower platform frame by electric welding.

[0013] Preferably, for the anti-bird damage device for a converter station capacitor tower provided by the present invention, the mesh composite insulator adopts a grid structure.

[0014] Preferably, for the anti-bird damage device for a converter station capacitor tower provided by the present invention, the composite material includes a core material and an adhesive. The core material adopts any one of glass fiber, aramid, polyester, and nylon, and the adhesive adopts any one of high-temperature silicone rubber, epoxy resin, and polyurethane.

[0015] Preferably, for the anti-bird damage device for a converter station capacitor tower provided by the present invention, the insulation and electrical properties of the composite material enable the mesh composite insulator to withstand the voltage difference between the converter station capacitor towers.

[0016] In summary, the beneficial technical effects of the present invention are as follows: The anti-bird damage device for a converter station capacitor tower provided by the present application includes a rectangular parallelepiped frame and a mesh composite insulator. The top of the rectangular parallelepiped frame is connected to the upper platform frame of the converter station capacitor tower, and the bottom of the rectangular parallelepiped frame is connected to the lower platform frame of the converter station capacitor tower. The mesh composite insulator is disposed around the outer peripheral wall of the rectangular parallelepiped frame to cover the space between the layers of the converter station capacitor tower. The mesh composite insulator is made of a composite material. With such a setting, it plays a protective role for the converter station capacitor tower, preventing birds from entering the interior of the capacitor tower. At the same time, it does not affect the heat dissipation and service life of the converter station capacitor tower. Brief Description of the Drawings

[0017] Figure 1 FIG. is a schematic diagram of the overall structure of the bird prevention device for a converter station capacitor tower provided by an embodiment of the present invention.

[0018] Figure 2 FIG. is the front view of the interlayer structure of the converter station capacitor tower provided by an embodiment of the present invention.

[0019] Figure 3 FIG. is a schematic diagram of the structure of the bird prevention device for a converter station capacitor tower provided by an embodiment of the present invention.

[0020] Figure 4 FIG. is a schematic diagram of the connection structure between the bird prevention device for a converter station capacitor tower and the converter station capacitor tower provided by an embodiment of the present invention.

[0021] In the figures, 1 is the bird prevention device; 10 is the mesh composite insulator; 20 is the insulating support column; 2 is the converter station capacitor tower; 21 is the upper platform; 22 is the lower platform. Detailed Description of the Embodiments

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Referring to Figure 1 and Figure 2 , a bird prevention device 1 for a converter station capacitor tower disclosed by the present invention includes a cuboid frame and a mesh composite insulator 10; the top end of the cuboid frame is connected to the upper platform 21 of the converter station capacitor tower 2, the bottom end of the cuboid frame is connected to the lower platform 22 of the converter station capacitor tower 2, and the mesh composite insulator 10 is disposed around the outer peripheral wall of the cuboid frame to cover the interlayer of the converter station capacitor tower 2; the mesh composite insulator 10 is made of a composite material; with such a setting, it plays a protective role for the converter station capacitor tower 2, preventing birds from entering the interior of the capacitor tower, and at the same time, does not affect the heat dissipation and service life of the converter station capacitor tower 2.

[0024] Among them, the composite material includes a core material and an adhesive. The core material is any one of glass fiber, aramid, polyester, and nylon, and the adhesive is any one of high-temperature silicone rubber, epoxy resin, and polyurethane.

[0025] When glass fiber is used as the core material in the composite material, it is woven into a cloth-like shape through a fine weaving technique, and the intertwining tightness and uniformity between the fibers are strictly regulated to build a stable basic structure for the board. Among them, glass fiber has the ability to withstand tension, bending, and compression, greatly enhancing the overall mechanical properties of the composite material. The excellent chemical stability of glass fiber enables the composite material to effectively resist the erosion of acids, alkalis, moisture, and various organic solvents, thus significantly extending the service life and durability of the composite material. In addition, glass fiber makes the composite material have higher stiffness. Even when subjected to external forces, it can maintain a more stable shape and reduce the occurrence of deformation. Then, high-temperature silicone rubber is selected as the adhesive. High-temperature silicone rubber can improve the toughness of the composite material, has extremely strong anti-fouling flashover ability and unique hydrophobic migration property, and at the same time has corrosion resistance and weather resistance, making the composite material less likely to break and protecting the glass fiber from environmental factors, thereby extending the service life of the composite material.

[0026] Furthermore, in this embodiment, a layer of RTV coating is applied on the outer surface of the mesh composite insulator 10; thereby, the weather resistance of the mesh composite insulator 10 is enhanced.

[0027] Among them, the insulation and electrical properties of the composite material enable the mesh composite insulator 10 to withstand the voltage difference between the converter station capacitor towers 2.

[0028] Furthermore, in the embodiment of the present invention, the mesh composite insulator 10 includes a plurality of insulating cylindrical bars, and the plurality of insulating cylindrical bars are all arranged around a cuboid frame. The plurality of insulating cylindrical bars are arranged at intervals along the height direction of the cuboid frame, and a preset distance is provided between every two adjacent insulating cylindrical bars.

[0029] Specifically, the method of winding an insulating cylindrical bar on the outer peripheral wall of the cuboid frame at every preset distance can be used to prevent birds from entering the anti-bird device 1.

[0030] Among them, the range of the preset distance is 2 cm - 4 cm. In this embodiment, the preset distance is 2 cm, and the method of winding one circle every 2 cm can be used to prevent birds from entering the anti-bird device 1, achieving a good anti-bird effect.

[0031] Specifically, the cross-sectional diameter range of the insulating cylindrical bar is 4 mm - 6 mm. In this embodiment, the cross-sectional diameter of the insulating cylindrical bar is 4 mm.

[0032] Among them, the plurality of insulating cylindrical bars are arranged from the top to the bottom of the cuboid frame, and an insulating cylindrical bar is horizontally wound on the cuboid frame every 2 cm, and the insulating cylindrical bar is tightly connected to the cuboid frame.

[0033] Further, in this embodiment, the cuboid frame includes at least four insulating support columns 20. The four insulating support columns 20 enclose a cuboid shape. The tops of the four insulating support columns 20 are all connected to the upper frame 21, and the bottoms of the four insulating support columns 20 are all connected to the lower frame 22.

[0034] Specifically, the center lines of the four insulating support columns are arranged in parallel. The tops and bottoms of the insulating support columns 20 are respectively connected to the upper frame 21 and the lower frame 22 by electric welding.

[0035] As Figure 1 shown, in this embodiment, the number of the insulating support columns 20 is 4. Of course, the number of the insulating support columns 20 can also be 5 or 6.

[0036] During use, the tops and bottoms of the four insulating support columns 20 are respectively welded to the upper frame 21 and the lower frame 22 of the converter station capacitor tower 2, and the mesh composite insulator 10 is arranged around the cuboid frame, so as to realize covering the interlayer of the converter station capacitor tower 2 with the mesh composite insulator 10, achieving the effect of protecting the capacitor tower.

[0037] Continue to refer to Figure 3 and Figure 4 , the mesh composite insulator 10 can also adopt a grid structure; arranged in this way, its wind resistance performance is better than that of other solid insulators; at the same time, the accumulation of moisture and heat is effectively avoided, thus keeping the space ventilated and dry.

[0038] The mesh composite insulator 10 with the grid structure includes multiple horizontal composite cylindrical bars and multiple vertical composite cylindrical bars. The multiple horizontally arranged horizontal composite cylindrical bars and the multiple vertically arranged vertical composite cylindrical bars intersect, and the intersection points of the horizontal composite cylindrical bars and the vertical composite cylindrical bars form the nodes of the grid structure.

[0039] Among them, the mesh composite insulator 10 with larger holes and sparser arrangement on the mesh composite insulator 10 with the grid structure usually has better ventilation, but the holes should not be too large, otherwise it cannot play an effective role in preventing birds, and at the same time, it should not be too small. If the holes are too small, snow is likely to accumulate on the surface of the mesh composite insulator 10, affecting its insulation performance.

[0040] The size of the holes is determined according to the actual situation, and this embodiment does not limit this.

[0041] It should be noted that the composite insulator with the grid structure can be used alone without the cuboid frame. When used alone, it is directly arranged around the outer periphery of the converter station capacitor tower 2 for bird prevention. When the composite insulator with the grid structure is used alone, it can also be used for bird prevention of other outdoor equipment.

[0042] When the composite insulator with a grid structure is used alone for bird prevention on the converter station capacitor tower 2, the composite insulator with a grid structure is disposed around the outer surface of the converter station capacitor tower 2, so that the interlayer space of the capacitor tower is protected by the grid insulator. Due to its unique mesh structure, birds cannot penetrate into the interior of the capacitor tower, thereby effectively avoiding the situation where the filter trips due to birds falling into the capacitor tower. At the same time, the effective insulation of the insulator enables it to withstand the voltage difference between the capacitor towers, so it can be used normally between the capacitor towers.

[0043] The bird prevention device 1 for the converter station capacitor tower provided by the present application includes a cuboid frame and a mesh composite insulator 10; the top end of the cuboid frame is connected to the upper platform 21 of the converter station capacitor tower 2, and the bottom end of the cuboid frame is connected to the lower platform 22 of the converter station capacitor tower 2. The mesh composite insulator 10 is disposed around the outer peripheral wall of the cuboid frame to cover the interlayer of the converter station capacitor tower 2; the mesh composite insulator 10 is made of a composite material; thus arranged, it plays a protective role for the converter station capacitor tower 2, preventing flying birds from entering the interior of the capacitor tower. At the same time, it does not affect the heat dissipation and service life of the converter station capacitor tower 2.

[0044] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0045] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An anti-bird device for a capacitor tower of a converter station, characterized in that: It includes a cuboid framework and a mesh composite insulator; The top end of the cuboid framework is connected to the upper platform of the converter station capacitor tower, and the bottom end of the cuboid framework is connected to the lower platform of the converter station capacitor tower. The mesh composite insulator is disposed around the outer peripheral wall of the cuboid framework to cover the layers of the converter station capacitor tower; the mesh composite insulator is made of composite materials.

2. The anti-bird device for a converter station capacitor tower according to claim 1, characterized in that: A layer of RTV coating is applied on the outer surface of the mesh composite insulator.

3. The anti-bird device for a converter station capacitor tower according to claim 1, characterized in that: The mesh composite insulator includes a plurality of insulating cylindrical bars, and the plurality of insulating cylindrical bars are all disposed around the cuboid framework. The plurality of insulating cylindrical bars are spaced along the height direction of the cuboid framework, and a preset distance is provided between every two adjacent insulating cylindrical bars.

4. The anti-bird device for the converter station capacitor tower according to claim 3, wherein: The range of the preset distance is 2 cm - 4 cm.

5. The anti-bird device for a converter station capacitor tower according to any one of claims 3-4, characterized in that: The cross-sectional diameter range of the insulating cylindrical bar is 4 mm - 6 mm.

6. The anti-bird device for the converter station capacitor tower according to claim 3, characterized in that: The cuboid framework includes at least four insulating support columns. The four insulating support columns are arranged in a cuboid shape. The top ends of the four insulating support columns are all connected to the upper platform, and the bottom ends of the four insulating support columns are all connected to the lower platform.

7. The anti-bird device for the converter station capacitor tower according to claim 6, characterized in that: The top end and the bottom end of the insulating support column are respectively connected to the upper platform and the lower platform by electric welding.

8. The anti-bird device for the converter station capacitor tower according to claim 1, characterized in that: The mesh composite insulator adopts a grid structure.

9. The anti-bird device for a converter station capacitor tower according to claim 1, characterized in that: The composite material includes a core material and an adhesive. The core material adopts any one of glass fiber, aramid, polyester, and nylon, and the adhesive adopts any one of high-temperature silicone rubber, epoxy resin, and polyurethane.

10. The anti-bird device for a converter station capacitor tower according to claim 1, characterized in that: The insulation and electrical properties of the composite material enable the mesh composite insulator to withstand the voltage difference between the converter station capacitor towers.

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