Wind power plant lightning protection equipment
By adopting a combination structure of multiple grounding pipe shunt current and conductive rods, split rods and insulating disks in lightning protection equipment in wind farms, the problem of excessive current load in existing equipment in a short period of time is solved, the current shunt and equipment heat dissipation are achieved, and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202520994499.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2035-05-20
AI Technical Summary
Existing lightning protection equipment in wind farms will cause the grounding wire to bear excessive current load in a short period of time, which is prone to burning.
A wind farm lightning protection equipment is designed, using multiple grounding pipes to divert current, and through a combined structure of conductive rods, split rods and insulating disks, lightning is directed to the ground, reducing a single point of load, and increasing the surface area of the conductive rod through the blades to accelerate heat dissipation.
Effective shunt lightning current, reduce ground wire load, extend the service life of the equipment, and avoid overheating of the conductive pole through a heat dissipation design.
Smart Images
Figure CN223039391U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lightning protection for wind farms, and specifically relates to a lightning protection device for a wind farm. Background Technique
[0002] Wind power generation refers to converting the kinetic energy of the wind into mechanical kinetic energy and then converting the mechanical energy into electrical kinetic energy. It is that the wind turbine rotates under the action of the wind, converting the kinetic energy of the wind into the mechanical energy of the wind turbine shaft, and the generator rotates to generate electricity driven by the wind turbine shaft. It is an important form of wind energy utilization.
[0003] The lightning protection devices in the prior art adopt a conductive method of centralized or unidirectional grounding, which will cause a huge current to pass through the grounding wire in a short time, exceeding the maximum load that the grounding wire can withstand in a short time and easily causing the risk of burning. Therefore, those skilled in the art have provided a lightning protection device for a wind farm to solve the problems raised in the above background technique. Content of the Utility Model
[0004] The purpose of the utility model is to provide a lightning protection device for a wind farm to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A lightning protection device for a wind farm, including a conductive rod, a lightning arrester is fixedly connected to the top end of the conductive rod, a plurality of blades are annularly arranged on the outer wall of the conductive rod, an insulating disc is fixedly embedded on the outer wall of the conductive rod, a plurality of distribution rods are annularly arranged on the outer wall of the conductive rod, and a plurality of grounding pipes are annularly arranged at the bottom of the insulating disc. The distribution rods penetrate through the insulating disc and are communicated with the grounding pipes. The bottom end of the conductive rod is fixedly connected with a disc, two support seats are slidably connected through the bottom of the disc, a bidirectional screw rod is rotatably connected through the outer wall of the conductive rod, two driving pipes are threadedly sleeved on the outer wall of the bidirectional screw rod, two rectangular holes are symmetrically opened at the top of the disc, and the two driving pipes penetrate through the rectangular holes and are fixedly connected with the top of the support seats.
[0006] As a further scheme of the utility model: Circular grooves are opened on the opposite sides of the two support seats, and a plurality of tooth grooves are opened at the top and bottom of the circular grooves.
[0007] As a further scheme of the utility model: A cavity is opened in the conductive rod, and a plurality of straight groove holes are annularly arranged on the inner wall of the cavity, and the straight groove holes are communicated with the cavity.
[0008] As a further scheme of the utility model: An installation groove is opened at the bottom of the support seat, and a magnetic attraction block is fixedly embedded in the installation groove.
[0009] As a further solution of the utility model: both of the said supporting seats are semi-circular, and the disc is located below the insulating disc.
[0010] As a further solution of the utility model: an installation hole is formed through the outer wall of the conductive rod, and the bidirectional screw rod is rotatably connected through the installation hole.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] Multiple grounding pipes can all be connected to the grounding wire. Lightning can be received by the lightning arrester and conducted to the conductive rod below, then conducted to multiple distribution rods, and then conducted from the distribution rods to the grounding pipes, and the current is conducted to the ground through the grounding wire to complete lightning protection. An insulating disc is arranged on the outer wall of the conductive rod to wrap the distribution rods and isolate the lower part of the conductive rod, so as to prevent the current from being directly conducted to the object to be installed. The conductive rod can be erected and supported by two supporting seats, and the blades can increase the surface area of the conductive rod to accelerate heat dissipation, thereby avoiding overheating of the whole conductive rod.
[0013] The utility model is simple to use. The lightning arrester shunts the current through multiple distribution rods and grounding pipes, thereby reducing the load of the grounding wire and then extending the service life. The supporting seat can support the conductive rod. Wires can pass through the straight slot holes and enter the cavity. The cavity can be used for arranging lines to hide them. The conductive rod can be installed on the cross bar by using the circular groove and the tooth groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is the overall three-dimensional schematic diagram of the utility model;
[0015] Figure 2 is the three-dimensional schematic diagram of the magnetic attraction block in the utility model;
[0016] Figure 3 is the partial exploded three-dimensional schematic diagram of the conductive rod in the utility model;
[0017] Figure 4 is the cross-sectional schematic diagram of the conductive rod in the utility model.
[0018] In the figure: 1. Conductive rod; 2. Blade; 3. Lightning arrester; 4. Distribution rod; 5. Grounding pipe; 6. Insulating disc; 7. Straight slot hole; 8. Bidirectional screw rod; 9. Disc; 10. Driving pipe; 11. Rectangular hole; 12. Tooth groove; 13. Circular groove; 14. Supporting seat; 15. Magnetic attraction block; 16. Installation hole; 17. Cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] Please refer to Figures 1 to 4 , in the embodiment of the present utility model, a lightning protection device for a wind farm includes a conductive rod 1. A lightning arrester 3 is fixedly connected to the top end of the conductive rod 1. A plurality of blades 2 are annularly arranged on the outer wall of the conductive rod 1. An insulating disc 6 is fixedly embedded on the outer wall of the conductive rod 1. A plurality of distributor rods 4 are annularly arranged on the outer wall of the conductive rod 1. And a plurality of grounding pipes 5 are annularly arranged at the bottom of the insulating disc 6. The distributor rods 4 penetrate through the insulating disc 6 and are communicated with the grounding pipes 5. A disc 9 is fixedly connected to the bottom end of the conductive rod 1. Two support seats 14 are slidably connected through the bottom of the disc 9. A plurality of grounding pipes 5 can all be connected to a grounding wire. A plurality of grounding pipes 5 can all be connected to a grounding wire. Lightning can be received by the lightning arrester 3 and conducted to the lower conductive rod 1, and then conducted to a plurality of distributor rods 4. The grounding wire can be connected to the ground, and then the grounding wire is pulled up and connected to the grounding pipe 5. When the current reaches the distributor rod 4, it is conducted by the distributor rod 4 to the grounding pipe 5, and finally the grounding pipe 5 conducts the current to the grounding wire. The current will be conducted to the ground by the grounding wire to complete lightning protection.
[0021] In this embodiment, a bidirectional screw rod 8 is rotatably connected through the outer wall of the conductive rod 1. Two driving pipes 10 are threadedly sleeved on the outer wall of the bidirectional screw rod 8. Two rectangular holes 11 are symmetrically opened at the top of the disc 9. And the two driving pipes 10 penetrate through the rectangular holes 11 and are fixedly connected to the top of the support seat 14.
[0022] In this embodiment, circular grooves 13 are opened on one side of the two support seats 14 facing each other. A plurality of tooth grooves 12 are opened at the top and bottom of the circular groove 13.
[0023] In this embodiment, a cavity 17 is opened in the conductive rod 1. And a plurality of straight groove holes 7 are annularly arranged on the inner wall of the cavity 17. The straight groove holes 7 are communicated with the cavity 17.
[0024] In this embodiment, an installation groove is opened at the bottom of the support seat 14. A magnetic attraction block 15 is fixedly embedded in the installation groove. The conductive rod 1 can be erected and supported by the two support seats 14. The magnetic attraction block 15 arranged at the bottom of the support seat 14 can be adsorbed on the top of a metal object for fixation.
[0025] In this embodiment, the two support seats 14 are both semi-circular. The disc 9 is located below the insulating disc 6.
[0026] In this embodiment, an installation hole 16 is formed through the outer wall of the conductive rod 1, and the bidirectional screw rod 8 is rotatably connected through the installation hole 16.
[0027] The working principle of the present utility model is as follows: Multiple grounding pipes 5 can be connected to the grounding wire. Lightning can be received by the lightning arrester 3 and conducted to the conductive rod 1 below, then conducted to multiple distribution rods 4, and then conducted from the distribution rods 4 to the grounding pipes 5. The current is conducted to the ground through the grounding wire to complete lightning protection. The blades 2 can increase the surface area of the conductive rod 1 to accelerate heat dissipation, thereby preventing the overall overheating of the conductive rod 1. An insulating disc 6 is arranged on the outer wall of the conductive rod 1 to wrap the distribution rod 4 and isolate the lower part of the conductive rod 1, so as to prevent the current from being directly conducted to the installed object. The conductive rod 1 can be erected and supported by two support seats 14. The magnetic attraction blocks 15 arranged at the bottom of the support seats 14 can be adsorbed on the top of the metal object for fixation. By finding a cross bar with a diameter similar to that of the circular groove 13, then placing the cross bar between the two circular grooves 13, and then rotating the bidirectional screw rod 8 to drive the two drive pipes 10 and the support seats 14 to approach each other, the two support seats 14 can drive the two circular grooves 13 to clamp on the cross bar for clamping and fixation, thus completing the installation. If the cross bar is rectangular, it can be clamped through multiple tooth grooves 12 to increase friction, thereby strengthening the fixation.
[0028] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.
Claims
1. A lightning protection device for a wind farm, comprising a conductive rod (1), characterized in that: The top of the conductive rod (1) is fixedly connected to a lightning arrester (3), a plurality of blades (2) are arranged in an annular array on the outer wall of the conductive rod (1), an insulating disk (6) is fixedly embedded on the outer wall of the conductive rod (1), a plurality of distribution poles (4) are arranged in an annular array on the outer wall of the conductive rod (1), and a plurality of grounding tubes (5) are arranged in an annular array at the bottom of the insulating disk (6), the distribution poles (4) penetrate the insulating disk (6) and are connected to the grounding tube (5), a disc (9) is fixedly connected to the bottom end of the conductive rod (1), two support seats (14) are slidably connected to the bottom of the disc (9), a bidirectional screw (8) is rotatably connected to the outer wall of the conductive rod (1), two driving tubes (10) are threadedly sleeved on the outer wall of the bidirectional screw (8), two rectangular holes (11) are symmetrically opened on the top of the disc (9), and the two driving tubes (10) penetrate the rectangular holes (11) and are fixedly connected to the top of the support seat (14).
2. A wind farm lightning protection device according to claim 1, characterized in that: A circular groove (13) is provided on one side opposite to the two support seats (14), and a plurality of tooth grooves (12) are provided on the top and the bottom of the circular groove (13).
3. A wind farm lightning protection device according to claim 1, characterized in that: A cavity (17) is provided in the conductive rod (1), and a plurality of straight slot holes (7) are provided in a circular array on the inner wall of the cavity (17), wherein the straight slot holes (7) are in communication with the cavity (17).
4. A wind farm lightning protection device according to claim 1, characterized in that: A mounting groove is provided at the bottom of the support seat (14), and a magnetic attraction block (15) is fixedly embedded in the mounting groove.
5. The wind farm lightning protection device according to claim 1, characterized in that: The two support seats (14) are both semicircular, and the disc (9) is located below the insulating disc (6).
6. A wind farm lightning protection device according to claim 1, characterized in that: A mounting hole (16) is provided through the outer wall of the conductive rod (1), and a bidirectional screw rod (8) is rotatably connected through the mounting hole (16).