Cage-shaped lightning arrester used in high mountain area

Abstract

The utility model belongs to the technical field of lightning protection, and particularly relates to a cage-shaped lightning arrester in a high mountain area, which comprises an upper lightning guide ring, a lower lightning guide ring and a plurality of unit lightning rods, the plurality of unit lightning rods are annularly distributed around a set area of a high mountain area, the set area is used for installing electronic equipment, and the height of the upper end of the electronic equipment is smaller than that of the spire of any unit lightning rod; the upper lightning guide ring is electrically connected with the upper portions of all the lightning rods, and the lower lightning guide ring is located below the upper lightning guide ring and electrically connected with the lower portions of all the lightning rods. According to the scheme, the plurality of unit lightning rods are arranged in multiple directions, so that the lightning protection effects of the electronic equipment in different directions are effectively improved, and the electronic equipment is suitable for high mountain areas where lightning strokes frequently occur; in addition, the lightning conductor rings are used for electrically connecting all the unit lightning rods, so that electrical conduction between adjacent lightning rods is realized, and the lightning protection performance is further improved. Therefore, the direct damage of thunder and lightning to the protected electronic equipment can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the lightning protection technical field, and specifically relates to a cage lightning protection device in high mountain area. BACKGROUND

[0002] With the development of high mountain area, many infrastructures such as radar station, weather station, wind power station, communication tower station, broadcast television transmission station and the like are established successively. However, the high mountain area is also easy to be struck by lightning, which also requires better safety and reliability of the equipment and facilities thereof. The number of lightning strike accidents in some high mountain areas in China is relatively large. Therefore, one of the key conditions for maintaining the safe and stable operation thereof is to do a good job in lightning protection.

[0003] The existing lightning protection mode is generally to install a lightning rod, and the lightning rod is essentially a lightning attraction, which attracts lightning to itself to avoid lightning strike on other objects within the protection range. The working principle of the lightning rod is as follows: in thunderstorm weather, when the charged cloud layer appears above the high building, the lightning rod or the top of the high building is induced with a large amount of electric charge. Since the needle head of the lightning rod is sharp, the conductor tip always gathers the most electric charge when static electricity is induced. In this way, the lightning rod gathers most of the electric charge. The lightning rod forms a capacitor with the charged cloud layer, and since it is sharp, that is, the two polar plates of the capacitor are small in area, the capacitance is small, that is, it can accommodate less electric charge. Since it gathers most of the electric charge, when the cloud layer has more electric charge, the air between the lightning rod and the cloud layer is easy to be punctured, and a path is formed between the charged cloud layer and the lightning rod. Since the lightning rod is grounded, the electric charge of lightning can be guided from above the protected object to the lightning rod and safely discharged into the ground, thereby protecting the safety of high-rise buildings, equipment and facilities.

[0004] In actual use of the lightning rod, only a single lightning rod is usually installed, which causes the lightning protection capacity of the lightning rod in the installation direction to be stronger than that in other directions, which is not suitable for some high mountain areas with high lightning density. Therefore, it is necessary to design a device capable of realizing lightning protection in multiple directions. UTILITY MODEL CONTENT

[0005] In order to solve the above problems existing in the prior art, the scheme provides a cage lightning protection device in high mountain area.

[0006] The technical scheme adopted by the utility model is:

[0007] The cage lightning protection device in high mountain area comprises an upper lightning conductor ring, a lower lightning conductor ring and a plurality of unit lightning rods, the plurality of unit lightning rods are arranged around a set area in the high mountain area, the set area is used for installing electronic equipment, the height of the upper end of the electronic equipment is less than the height of the tower top of any unit lightning rod, the upper lightning conductor ring is electrically connected with the upper parts of all the lightning rods, and the lower lightning conductor ring is located below the upper lightning conductor ring and is electrically connected with the lower parts of all the lightning rods.

[0008] As an alternative or supplement to the cage lightning protection device, the unit lightning rod comprises a lightning arrester, a down conductor and a grounding body, the lightning arrester is fixed on the upper end of the down conductor and is electrically connected with the down conductor, and the grounding body is buried underground and is electrically connected with the lower end of the down conductor.

[0009] As an alternative or supplement to the cage lightning protection device, a support frame is arranged on the side of the down conductor, and the support frame is fixedly connected with the down conductor through an insulating porcelain bottle.

[0010] As an alternative or supplement to the cage lightning protection device, the lower end of the support frame is fixedly connected with a ground pile, and the ground pile is pre-buried in the ground.

[0011] As an alternative or supplement to the cage lightning protection device, the outer side of the upper lightning conductor ring is fixedly connected with the upper end of the down conductor.

[0012] As an alternative or supplement to the cage lightning protection device, the outer side of the lower lightning conductor ring is fixedly connected with the upper end of the down conductor.

[0013] As an alternative or supplement to the cage lightning protection device, the upper lightning conductor ring or the lower lightning conductor ring is in a circular ring structure, a rectangular ring structure or a polygonal ring structure.

[0014] As an alternative or supplement to the cage lightning protection device, the distance between any point on the unit lightning rod and the outer wall of the electronic equipment is greater than 0.5 m, and the distance between any point on the upper lightning conductor ring and the lower lightning conductor ring and the outer wall of the electronic equipment is greater than 0.5 m.

[0015] The beneficial effects of the utility model are as follows: the multiple unit lightning rods are arranged in multiple directions, the lightning protection effect in different directions of the electronic equipment is effectively improved, and the utility model is suitable for the high mountain area where lightning frequently occurs; in addition, the upper lightning conductor ring and the lower lightning conductor ring are electrically connected with the unit lightning rods, the electrical conduction between the adjacent lightning rods is realized, and the lightning protection performance is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced.

[0017] Fig. 1is a structural schematic diagram of the cage-shaped lightning arrester in the high mountain area in the present solution.

[0018] Fig. 2 is a structural schematic diagram of the unit lightning rod.

[0019] In the figure: 1-unit lightning rod; 2-electronic equipment; 3-lower lightning ring; 4-upper lightning ring; 5-lightning receptor; 6-down lead; 7-grounding body; 8-insulating porcelain bottle; 9-supporting frame; 10-ground pile. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings, and the described embodiments are only a part of the embodiments, and not all of the embodiments. Based on the embodiments in the present solution, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present solution.

[0021] Embodiment 1

[0022] As shown in the figure, the present embodiment designs a cage-shaped lightning arrester in the high mountain area, which comprises an upper lightning ring 4, a lower lightning ring 3 and a plurality of unit lightning rods 1 and other components. Figs. 1-2 The plurality of unit lightning rods 1 are annularly distributed around the periphery of a set area in the high mountain area, the set area is used for installing electronic equipment 2, and the height of the upper end of the electronic equipment 2 is less than the tower tip height of any unit lightning rod 1; the upper lightning ring 4 is electrically connected with the upper part of all lightning rods, and the lower lightning ring 3 is located below the upper lightning ring 4 and is electrically connected with the lower part of all lightning rods.

[0023] The unit lightning rod 1 comprises a lightning receptor 5, a down lead 6 and a grounding body 7; the lightning receptor 5 is fixed on the upper end of the down lead 6 and is electrically connected therewith; the grounding body 7 is buried underground and is electrically connected with the lower end of the down lead 6. Both the lightning receptor 5 and the down lead 6 adopt a rod-shaped or columnar conductor. The grounding body 7 can adopt a conductive wire or a columnar nail inserted into the ground.

[0024]

[0025] ​It should be noted that the specifications of the unit lightning rod 1 meet the GB standards. Specifically, first, the lightning receptor 5 is the highest part of the lightning rod (also known as the lightning-receiving tip) and is specially designed to accept the discharge of lightning clouds. It is generally made of galvanized round steel with a length of 1-2 meters and a diameter of not less than 20 square millimeters, or galvanized steel pipe with a diameter of not less than 25 square millimeters. Second, the down conductor 6 is the connecting line between the lightning receptor 5 and the grounding body 7. The lightning current on the lightning receptor 5 should be safely introduced into the grounding body 7 to discharge into the ground as soon as possible. The down conductor 6 is generally made of galvanized round steel with a diameter of not less than 16 square millimeters or galvanized steel pipe with a cross-sectional area of not less than 25 square millimeters. Third, the grounding body 7 is the underground part of the lightning rod, which functions to directly discharge lightning into the ground. The grounding body 7 should be buried to a depth of not less than 0.6 meters, and the length of the vertical grounding body 7 should be not less than 2.5 meters. It is generally made of galvanized round steel or flat steel, or galvanized steel wire. The size requirements are as follows: round steel diameter ≥ 8 square millimeters; flat steel thickness ≥ 4 square millimeters, cross-sectional area ≥ 48 square millimeters, steel wire cross-sectional area ≥ 25 square millimeters. The grounding resistance of the grounding body 7 must meet the requirements, generally below 4 ohms.

[0026] A support frame 9 is provided on the side of the down conductor 6, and the support frame 9 is fixedly connected to the down conductor 6 through an insulating porcelain bottle 8. The lower end of the support frame 9 is fixedly connected to a ground stake 10, which is pre-buried in the ground.

[0027] The outer side of the upper lightning ring 4 is fixedly connected to the upper end of the down conductor 6. The outer side of the lower lightning ring 3 is fixedly connected to the upper end of the down conductor 6.

[0028] The shape of the upper lightning ring 4 and the lower lightning ring 3 is determined according to the arrangement position of the unit lightning rod 1. The upper lightning ring 4 or the lower lightning ring 3 is in the shape of a circular ring, a rectangular ring, or a polygonal ring structure.

[0029] The distance between any point on the unit lightning rod 1 and the outer wall of the electronic equipment 2 is greater than 0.5 m; the distance between any point on the upper lightning ring 4 and the lower lightning ring 3 and the outer wall of the electronic equipment 2 is also greater than 0.5 m. Thus, the electrical conduction between the lightning rod and the electronic equipment 2 is reduced.

[0030] The above examples are merely for the purpose of clearly illustrating the examples made and are not a limitation on the embodiments; all embodiments need not and cannot be exhaustively enumerated here. The obvious changes or variations derived therefrom are still within the scope of protection of the present technology.

Claims

1. A cage-shaped lightning arrester for high-altitude areas, characterized in that: It includes an upper lightning guide ring (4), a lower lightning guide ring (3), and several unit lightning rods (1); the several unit lightning rods (1) are distributed in a ring around a designated area in a high mountain area, the designated area is used to install electronic equipment (2), the height of the upper end of the electronic equipment (2) is less than the height of the tower tip of any unit lightning rod (1); the upper lightning guide ring (4) is electrically connected to the upper part of all the lightning rods, and the lower lightning guide ring (3) is located below the upper lightning guide ring (4) and electrically connected to the lower part of all the lightning rods.

2. The cage-type lightning arrester for high-altitude areas according to claim 1, characterized in that: The unit lightning rod (1) includes a lightning arrester (5), a down conductor (6) and a grounding body (7); the lightning arrester (5) is fixed to the upper end of the down conductor (6) and electrically connected to it; the grounding body (7) is buried underground and electrically connected to the lower end of the down conductor (6).

3. The cage-type lightning arrester for high-altitude areas according to claim 2, characterized in that: A support frame (9) is provided on the side of the down conductor (6), and the support frame (9) is fixedly connected to the down conductor (6) through an insulating porcelain bottle (8).

4. The cage-type lightning arrester for high-altitude areas according to claim 3, characterized in that: The lower end of the support frame (9) is fixedly connected to a ground pile (10), which is pre-embedded in the ground.

5. The cage-type lightning arrester for high-altitude areas according to claim 2, characterized in that: The outer side of the upper lightning guide ring (4) is fixedly connected to the upper end of the down conductor (6).

6. The cage-type lightning arrester for high-altitude areas according to claim 2, characterized in that: The outer side of the lower lightning guide ring (3) is fixedly connected to the upper end of the down conductor (6).

7. The cage-type lightning arrester for high-altitude areas according to any one of claims 1-6, characterized in that: The upper lightning guide ring (4) or the lower lightning guide ring (3) is a circular ring, a rectangular ring, or a polygonal ring structure.

8. The cage-type lightning arrester for high-altitude areas according to any one of claims 1-6, characterized in that: The distance between any point on the unit lightning rod (1) and the outer wall of the electronic device (2) is greater than 0.5m; the distance between any point on the upper lightning guide ring (4) and the lower lightning guide ring (3) and the outer wall of the electronic device (2) is greater than 0.5m.

Images