Distributed ionization lightning eliminator

Abstract

The present invention relates to a distributed ionization lightning eliminator, belonging to the technical field of lightning protection. It includes a metal outer cover, on which a pole mounting seat is provided. A pole is installed inside the pole mounting seat, and a copper discharge electrode is provided at the top of the pole. The bottom of the metal outer cover is connected to an insulator support I. The metal outer cover is connected to a discharge cylinder through a cable lead. An insulator support II is provided inside the discharge cylinder. The top of the insulator support II is connected to the discharge cylinder, and the bottom of the insulator support II is connected to the discharge electrode. An insulating backing plate is provided between the insulator support II and the discharge electrode. The bottom of the discharge electrode is connected to a grounding device, and a discharge gap is formed between the outer wall of the discharge electrode and the inner wall of the discharge cylinder. The structure of the present invention is reasonably designed, convenient for installation and operation, with high structural strength and good stability. It can effectively weaken the cloud charge and block the formation of the cloud channel, and has strong safety and practicability.

Description

Technical Field

[0001] The present invention relates to a distributed ionization lightning eliminator, belonging to the technical field of lightning protection. Background Art

[0002] Lightning disasters are the third major meteorological disasters after rainstorms and floods, and landslides. Lightning has a high discharge voltage, a large current amplitude, a short discharge process, and great destructiveness, seriously threatening the safety of human life and property. At the same time, bad weather often affects the safe and stable operation of power grids, telecommunications, and transportation, and also affects the effective execution of major military operations. Therefore, the industry has never stopped researching lightning mechanisms and developing lightning protection devices.

[0003] Traditional lightning protection devices include lightning rods, early streamer emission lightning rods, and semiconductor lightning eliminators, etc.

[0004] The working principle of a lightning rod is to attract the thundercloud electric field to concentrate on its metal needle, increasing the electric field strength at the needle tip, causing the thundercloud electric field to break down the air, and discharging the powerful lightning current into the ground through its grounding body. This device has a simple structure, stable performance, and convenient maintenance, but has a small protection angle, high requirements for grounding resistance, risks of touch voltage and step voltage, and at the same time, an induced current is easily formed on the protected object during the lightning receiving process, and it is not suitable for protecting weak current equipment.

[0005] An early streamer emission lightning rod generates a faster oncoming leader than an ordinary lightning rod. Before the formation of a natural oncoming leader, it quickly propagates towards the lightning direction until it captures the lightning and conducts it into the ground. This device can effectively avoid the "side flash" and "sidelong strike" phenomena of traditional lightning rods. However, its protection radius is close to that of an ordinary lightning rod, and it has high requirements for grounding resistance. There are also risks of touch voltage and step voltage.

[0006] A semiconductor lightning eliminator is designed based on the principle of tip discharge of a metal needle-shaped electrode. It generates plasma under the action of the thundercloud electric field to neutralize the thundercloud charge. This device has the ability to neutralize the downward leader of the thundercloud and can effectively weaken the main discharge current of the lightning strike. However, its current-carrying capacity is limited, and the semiconductor lightning eliminator itself is often damaged by lightning. Summary of the Invention

[0007] According to the above deficiencies in the prior art, the problem to be solved by the present invention is: to provide a distributed ionization lightning eliminator with a reasonable structural design, convenient installation and operation, high structural strength, good stability, capable of effectively weakening thundercloud charges and blocking the formation of thundercloud channels, and improving the operating safety of the equipment.

[0008] The technical solution adopted by the present invention to solve its technical problems is:

[0009] The described distributed ionization lightning eliminator includes a metal outer cover, on which a pole mounting seat is provided. A pole is installed inside the pole mounting seat, and a copper discharge electrode is provided at the top of the pole. The bottom of the metal outer cover is connected to an insulator support member I;

[0010] The metal outer cover is connected to a discharge cylinder through a cable lead. Inside the discharge cylinder, an insulator support member II is provided. The top of the insulator support member II is connected to the discharge cylinder, the bottom of the insulator support member II is connected to the discharge electrode, an insulating backing plate is provided between the insulator support member II and the discharge electrode, the bottom of the discharge electrode is connected to a grounding device, and a discharge gap is formed between the outer wall of the discharge electrode and the inner wall of the discharge cylinder.

[0011] The distributed ionization lightning eliminator adopts a split structure design, which is convenient for installation and fixation. It can effectively weaken the cloud charge, block the formation of the cloud channel, prevent the generation of induced current within the protected area, ensure the safety of the equipment itself and the surrounding facilities. At the same time, the design of the metal outer cover and the discharge cylinder can further enhance the structural strength of the equipment and improve the stability of the equipment operation.

[0012] The lightning elimination principle of the distributed ionization lightning eliminator: When a thundercloud drifts above the lightning eliminator, a large amount of positive charges are induced on the earth's surface, on the discharge electrode connected to the earth, and at the tip of the copper discharge electrode of the lightning eliminator. Due to the tip effect, the charge density at the tip of the copper discharge electrode is relatively large and the electric field strength is relatively strong, which will form a uniform high electric field on the protected object, making the protected object in a safe electric field. As the electric field of the thundercloud increases, the positive charges at the tip gradually increase, and the negative charges accumulate on the wall of the discharge cylinder under the repulsion of the thundercloud electric field. The discharge electrode in the discharge cylinder is positively charged. As the charge increases, the strong electric field will ionize the air, generating a large number of corona ions. The positive corona charges diffuse into the air and continuously interact with the thundercloud charges, weakening the development speed and intensity of the downward leader of the thundercloud. At the same time, a corona shielding layer is formed on the lightning eliminator and the protected object, inhibiting the initiation of the upward connecting leader and blocking the conduction of the upper and lower channels, thus avoiding the lightning strike phenomenon within the protected area.

[0013] Further preferably, a spherical seat is provided at the top of the pole, and copper discharge electrodes are provided on the front, back, left, right, and top of the spherical seat. The length of the pole is 1.2 m.

[0014] Further preferably, the metal outer cover is of a hemispherical structure, and 13 pole mounting seats are provided and evenly arranged on the metal outer cover. The pole mounting seats and the metal outer cover are integrally cast.

[0015] Further preferably, internal threads are provided on the inner side of the pole mounting seat, external threads are provided at the bottom of the pole, and the pole and the pole mounting seat are connected by threads, which is convenient for installation and disassembly.

[0016] Further preferably, the metal outer cover and the insulator support I are connected into one body through flange I. Mounting holes I are provided on the base at the bottom of the insulator support I, which is convenient for connection and fixing and has good firmness.

[0017] Further preferably, the insulator support II and the discharge cylinder are connected into one body through flange II, which is convenient for connection and fixing and has good firmness.

[0018] Further preferably, the discharge electrode adopts a grooved discharge electrode. Mounting holes II are provided on the grounding device at the bottom of the discharge electrode, which is convenient for fixing.

[0019] Further preferably, discharge grooves are provided at positions corresponding to the discharge gaps on the inner wall of the discharge cylinder.

[0020] Further preferably, both ends of the cable lead are fixed to the metal outer cover and the discharge cylinder through bolts respectively, which is convenient for connection and fixing.

[0021] The beneficial effects of the present invention are as follows:

[0022] The distributed ionization lightning eliminator described in the present invention adopts a split structure design, which is convenient for installation and operation and does not require a power source. When performing lightning driving operations, no induced current will be generated within the protected range, and no negative impact will be imposed on the equipment itself and the surrounding facilities. It can effectively weaken the cloud charge and block the formation of the cloud channel. At the same time, the design of the metal outer cover and the discharge cylinder can further enhance the structural strength of the entire set of equipment, improve the stability of equipment operation, has a reasonable structural design, and has strong practicability. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 is a schematic connection diagram of the electric pole and the copper discharge electrode of the present invention;

[0025] Figure 3 is a schematic structural diagram of the insulating pad of the present invention;

[0026] Figure 4 is a top view of the discharge cylinder of the present invention;

[0027] Figure 5 is a bottom view of the grounding device of the present invention;

[0028] Figure 6 is a schematic connection diagram of the grounding device and the discharge electrode of the present invention;

[0029] In the figure, 1 is a metal outer casing; 2 is a pole; 3 is a copper discharge electrode; 4 is an insulator support I; 5 is a mounting hole I; 6 is a cable lead; 7 is a flange I; 8 is a flange II; 9 is an insulator support II; 10 is an insulating pad; 11 is a discharge electrode; 12 is a grounding device; 13 is a mounting hole II; 14 is a spherical seat; 15 is a discharge cylinder; 16 is a pole mounting seat; 17 is a discharge gap; 18 is a discharge groove. Detailed implementation method

[0030] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings:

[0031] As Figures 1-6 shown, the distributed ionization lightning eliminator includes a metal outer casing 1. A pole mounting seat 16 is provided on the metal outer casing 1. A pole 2 is installed inside the pole mounting seat 16. Internal threads are provided on the inner side of the pole mounting seat 16, and external threads are provided at the bottom of the pole 2. The pole 2 and the pole mounting seat 16 are connected by threads. A copper discharge electrode 3 is provided at the top of the pole 2. The bottom of the metal outer casing 1 is connected to the insulator support I 4.

[0032] The metal outer casing 1 is connected to the discharge cylinder 15 through a cable lead 6. Both ends of the cable lead 6 are fixed to the metal outer casing 1 and the discharge cylinder 15 by bolts respectively. An insulator support II 9 is provided inside the discharge cylinder 15. The top of the insulator support II 9 is connected to the discharge cylinder 15, and the bottom of the insulator support II 9 is connected to the discharge electrode 11. The insulator support II 9 and the discharge electrode 11t are connected through an insulating pad 10 by transition. The insulating pad 10 adopts a gear-shaped structure. The bottom of the discharge electrode 11 is connected to the grounding device 12. A discharge gap 17 is formed between the outer wall of the discharge electrode 11 and the inner wall of the discharge cylinder 15. A discharge groove 18 is provided at the position of the inner wall of the discharge cylinder 15 corresponding to the discharge gap 17.

[0033] A spherical seat 14 is provided at the top of the pole 2. Copper discharge electrodes 3 are provided on the front, back, left, right and top of the spherical seat 14. The length of the pole 2 is 1.2 m. The metal outer casing 1 is of a hemispherical structure. Thirteen pole mounting seats 16 are provided and are evenly arranged on the metal outer casing 1. The pole mounting seat 16 and the metal outer casing 1 are integrally cast.

[0034] The metal outer casing 1 and the insulator support I 4 are connected into one body through a flange I 7. Mounting holes I 5 are provided on the base at the bottom of the insulator support I 4. The insulator support II 9 and the discharge cylinder 15 are connected into one body through a flange II 8. The discharge electrode 11 adopts a grooved discharge electrode. Mounting holes II 13 are provided on the grounding device 12 connected to the bottom of the discharge electrode 11.

[0035] The working principle and usage process of the present invention:

[0036] In use, first install the pole 2 with the copper discharge electrode 3 on the metal outer casing 1, and then install and fix the assembly of the metal outer casing 1 and the insulator support I 4 on the pole tower through the bolt assembly; then install the assembly of the discharge cylinder 15, the insulator support II 9, the discharge electrode 11 and the grounding device 12 on the pole tower, and at the same time ground the grounding device 12, and then connect the metal outer casing 1 and the discharge cylinder 15 through the cable lead 6.

[0037] The present invention adopts a split design, with reasonable structural design, convenient installation and operation, high structural strength and good stability. It can effectively weaken the cloud charge and block the formation of the cloud channel, and has strong safety and practicability.

[0038] The present invention is not limited to the above specific embodiments, and changes, modifications, additions or substitutions made by those of ordinary skill in the art within the essence of the present invention should also fall within the protection scope of the present invention.

Claims

1. A distributed ionization lightning eliminator, characterized in that: It includes a metal outer cover (1), on which a pole mounting base (16) is provided. A pole (2) is installed inside the pole mounting base (16). A copper discharge electrode (3) is provided at the top of the pole (2). The bottom of the metal outer cover (1) is connected to an insulator support I (4). The metal outer cover (1) is connected to a discharge cylinder (15) through a cable lead (6). An insulator support II (9) is provided inside the discharge cylinder (15). The top of the insulator support II (9) is connected to the discharge cylinder (15). The bottom of the insulator support II (9) is connected to a discharge electrode (11). An insulating backing plate (10) is provided between the insulator support II (9) and the discharge electrode (11). The bottom of the discharge electrode (11) is connected to a grounding device (12). A discharge gap (17) is formed between the outer wall of the discharge electrode (11) and the inner wall of the discharge cylinder (15).

2. The distributed ionization lightning eliminator according to claim 1, characterized in that: A spherical seat (14) is provided at the top of the pole (2). Copper discharge electrodes (3) are provided in the front, rear, left, right and top of the spherical seat (14). The length of the pole (2) is 1.2 m.

3. The distributed ionization lightning eliminator according to claim 1, wherein: The metal outer cover (1) is of a hemispherical structure. Thirteen pole mounting bases (16) are provided and evenly arranged on the metal outer cover (1). The pole mounting bases (16) and the metal outer cover (1) are integrally cast.

4. The distributed ionization lightning eliminator according to claim 1, wherein: Internal threads are provided on the inner side of the pole mounting base (16), and external threads are provided at the bottom of the pole (2). The pole (2) and the pole mounting base (16) are connected by threads.

5. The distributed ionization lightning eliminator according to claim 1, characterized in that: The metal outer cover (1) and the insulator support I (4) are connected into one body through a flange I (7). Mounting holes I (5) are provided on the base at the bottom of the insulator support I (4).

6. The distributed ionization lightning eliminator according to claim 1, wherein: The insulator support II (9) and the discharge cylinder (15) are connected into one body through a flange II (8).

7. The distributed ionization lightning eliminator according to claim 1, characterized in that: The discharge electrode (11) adopts a grooved discharge electrode. Mounting holes II (13) are provided on the grounding device (12) at the bottom of the discharge electrode (11).

8. The distributed ionization lightning eliminator according to claim 1, wherein: Discharge grooves (18) are provided at the positions of the inner wall of the discharge cylinder (15) corresponding to the discharge gap (17).

9. The distributed ionization lightning eliminator according to claim 1, characterized in that: Both ends of the cable lead (6) are fixed to the metal outer cover (1) and the discharge cylinder (15) respectively by bolts.

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