CN214314556U

CN214314556U - Lightning protection device for rail weighbridge

Info

Publication number: CN214314556U
Application number: CN202022942856.4U
Authority: CN
Inventors: 郭世雄; 石梦真; 任永坡
Original assignee: Shangan Power Plant of Huaneng Power International Inc
Current assignee: Shangan Power Plant of Huaneng Power International Inc
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-09-28
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a railroad track scale lightning protection device relates to railroad track scale lightning protection field. The weighing machine comprises a track with two rails, a weighing machine chamber arranged on one side of the track, a computer arranged in the weighing machine chamber, a sensor arranged below the track, a branch switch arranged at the weighing machine chamber and a main switch electrically connected with the branch switch; the sensor is electrically connected with the computer; the branch switch is electrically connected with the computer; lightning protection modules are respectively arranged on two sides of the track; the lightning protection module is installed at the track; a signal lightning protector is arranged between the sensor and the computer; the signal lightning protector is close to the sensor; the main switch is electrically connected with a primary power supply lightning protector; the branch switch is electrically connected with a secondary power supply lightning protection device. The utility model has the advantages that: the track scale is well protected.

Description

Lightning protection device for rail weighbridge

Technical Field

The utility model relates to a railroad track scale lightning protection technical field, in particular to railroad track scale lightning protection device.

Background

It is known that the lightning has a very strong destructive effect on buildings, equipment and networks because the instantaneous voltage of the lightning reaches millions of volts and the instantaneous current of the lightning reaches hundreds of thousands of amperes. Every time a thunderstorm comes, some buildings, equipment and networks are always struck by lightning inevitably, so that damage to different degrees is caused.

Currently, most buildings in the world are still protected from lightning using traditional, economical, and effective lightning conductors. However, with the continuous development of modern electronic technology and the use of a large number of computers, lightning protection for these fragile electronic devices is ineffective. Lightning rods are unable to prevent damage to computers and network equipment from induced lightning overvoltages, operational overvoltages and the strong induced voltages that these overvoltages generate around when current is discharged. The light person destroys the computer and the communication equipment, and the heavy person can damage the network host, causing the network to be paralyzed.

Many electronic devices, such as sensors, computers, etc., are used in the railroad track scale system, so lightning protection needs to be provided for the devices in the railroad track scale system.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a railroad track scale lightning protection device is provided. The track scale is well protected.

The utility model adopts the technical proposal that: the lightning protection device for the rail weighbridge comprises a rail with two rails, a weighing instrument chamber arranged on one side of the rail, a computer installed in the weighing instrument chamber, a sensor installed below the rail, a branch switch installed at the weighing instrument chamber and a main switch electrically connected with the branch switch; the sensor is electrically connected with the computer; the branch switch is electrically connected with the computer; lightning protection modules are respectively arranged on two sides of the track; the lightning protection module is installed at the track; a signal lightning protector is arranged between the sensor and the computer; the signal lightning protector is close to the sensor; the main switch is electrically connected with a primary power supply lightning protector; the branch switch is electrically connected with a secondary power supply lightning protection device.

Further optimizing this technical scheme, the track scale lightning protection device the primary power lightning protection device with the distance between the secondary power lightning protection device is greater than 15 m.

Further optimizing the technical scheme, a Faraday cage is arranged outside the weighing instrument chamber of the lightning protection device of the rail weighbridge; the scale chamber is disposed inside the faraday cage.

The utility model discloses the beneficial effect who is showing lies in:

1. by installing the lightning protection module on the track, after buildings around the track are struck by lightning, the surrounding buildings conduct the current into the ground and cannot conduct the current to the track, so that the damage to parts on a track scale system is reduced.

2. If a building far away from the rail weighbridge system is directly hit by thunder, but high pulse voltage formed by thunder induction can also pass through cables and communication influences or directly hit remote electronic equipment, and the signal lightning protector is arranged at the sensor, so that the high pulse voltage transmitted from the remote place can be blocked, and the damage to the sensor and the computer in the weighing instrument room is reduced.

3. Under general conditions, the thunder and lightning mainly causes the influence to relevant equipment such as computer through the power supply, so install one-level power lightning protection device and second grade power lightning protection device respectively in master switch and branch switch punishment to make the distance between one-level power lightning protection device and the second grade power lightning protection device be greater than 15 meters, when can guarantee to suffer the thunderbolt, high voltage is at first through one-level power lightning protection device, then passes through second grade power lightning protection device again, adopt the principle of lightning protection step by step, the energy of releasing step by step, finally reach the protection requirement.

4. The weighing apparatus chamber is placed in the Faraday cage, so that lightning can be prevented from directly striking the weighing apparatus chamber, and the equipment in the weighing apparatus chamber is prevented from being damaged by the direct-striking lightning.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure, 1, track; 2. a scale chamber; 3. a Faraday cage; 4. a computer; 5. a sensor; 6. a branch switch; 7. a master switch; 8. a lightning protection module; 9. a signal lightning protector; 10. a primary power lightning arrester; 11. and a secondary power lightning protection device.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to fig. 1 in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

A track scale lightning protection device comprises a track 1 with two rails, a weighing instrument chamber 2 arranged on one side of the track 1, a computer 4 arranged in the weighing instrument chamber 2, and a sensor 5 arranged below the track 1; a sub switch 6 installed at the scale chamber 2 and a main switch 7 electrically connected to the sub switch 6; the sensor 5 is electrically connected with the computer 4; the branch switch 6 is electrically connected with the computer 4; the two sides of the track 1 are respectively provided with a lightning protection module 8; the lightning protection module 8 is installed at the track 1; a signal lightning protector 9 is arranged between the sensor 5 and the computer 4; the signal lightning protector 9 is close to the sensor 5; the main switch 7 is electrically connected with a primary power lightning arrester 10; the branch switch 6 is electrically connected with a secondary power supply lightning protector 11;

the distance between the primary power supply lightning protection device 10 and the secondary power supply lightning protection device 11 is more than 15 m;

a Faraday cage 3 is arranged outside the weighing apparatus chamber 2; the scale chamber 2 is disposed inside the faraday cage 3.

When the present embodiment is used:

when the lightning strikes the buildings around the railroad track scale, the current is conducted to the railroad track 1 through the ground, and the lightning protection module 8 is used to block the current which is to be conducted to the railroad track 1.

When the thunder is directly on the building far away from the railroad track scale, the high pulse voltage generated by the thunder induction can be transmitted from the building hit by the thunder to the electronic equipment such as the sensor 5 through the cable and the communication influence or directly, and the signal lightning protector 9 is used for blocking the high pulse voltage.

When a lightning strikes the weighing apparatus chamber 2 directly, the Faraday cage 3 is used to prevent the equipment in the weighing apparatus chamber 2 from being damaged.

When the thunder damages the equipment of the whole rail weighbridge system through the power supply, the equipment is protected from lightning step by step through the primary power supply lightning protector 10 and the secondary power supply lightning protector 11.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in fig. 1, and are used merely for convenience of description and simplicity of description, and in the absence of a contrary explanation, these directional terms are not intended to indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Claims

1. A lightning protection device for a rail weighbridge comprises a rail (1) with two rails, a weighbridge chamber (2) arranged on one side of the rail (1), a computer (4) arranged in the weighbridge chamber (2), a sensor (5) arranged below the rail (1), a branch switch (6) arranged at the weighbridge chamber (2) and a main switch (7) electrically connected with the branch switch (6); the sensor (5) is electrically connected with the computer (4); the branch switch (6) is electrically connected with the computer (4), and is characterized in that: lightning protection modules (8) are respectively arranged on two sides of the track (1); the lightning protection module (8) is arranged at the track (1); a signal lightning protector (9) is arranged between the sensor (5) and the computer (4); the signal lightning protector (9) is close to the sensor (5); the main switch (7) is electrically connected with a primary power lightning protector (10); the branch switch (6) is electrically connected with a secondary power supply lightning protection device (11).

2. The railroad track scale lightning protection device of claim 1, wherein: the distance between the primary power supply lightning protection device (10) and the secondary power supply lightning protection device (11) is larger than 15 m.

3. The railroad track scale lightning protection device of claim 1, wherein: a Faraday cage (3) is arranged outside the weighing apparatus chamber (2); the scale chamber (2) is arranged inside the Faraday cage (3).