CN218386727U

CN218386727U - Lightning protection device for power transmission line

Info

Publication number: CN218386727U
Application number: CN202222529242.2U
Authority: CN
Inventors: 柴瑞轩; 孙晓光
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-01-24
Anticipated expiration: 2032-09-23

Abstract

The utility model discloses a device is hit in transmission line lightning protection, the loach carrying platform comprises a supporting fram, the fixed equal fixedly connected with connecting plate of both ends lateral wall of support frame, the up end fixedly connected with mounting panel of connecting plate, the lightning rod that two symmetries of one side lateral wall fixedly connected with of connecting plate set up is kept away from to the mounting panel, the direction needle that two slopes of lateral wall fixedly connected with of lightning rod set up, one side lateral wall that the mounting panel was kept away from to the connecting plate is equipped with and is used for installing with fixed installation mechanism to the support frame, one side lateral wall that the mounting panel was kept away from to the support frame is equipped with and supports and isolated mechanism to the support frame. The utility model discloses a set up lightning rod, guide pin, support frame and insulating layer isotructure, utilize the lightning and lightning heavy current guide on the guide pin to the air for to the release of electric current in to the air, avoid flowing through the great and therefore impaired phenomenon of circuit of electric current on the circuit frame.

Description

Lightning protection device for power transmission line

Technical Field

The utility model relates to a circuit transport technical field especially relates to a device is hit in transmission line lightning protection.

Background

The transmission line is realized by using a transformer to boost the electric energy generated by the generator and then connecting the electric energy to the transmission line through control equipment such as a breaker and the like. The transmission line is divided into an overhead transmission line and a cable line, the overhead transmission line is composed of a line tower, a lead, an insulator, a line hardware fitting, a stay wire, a tower foundation, a grounding device and the like, and the overhead transmission line is erected on the ground. Power transmission is classified into ac power transmission and dc power transmission according to the nature of the transmitted current.

And because overhead transmission line erects the transmission circuit in the high-altitude position, consequently when meetting thunderstorm weather, higher circuit frame has just become the discharge structure of thunder and lightning, when the circuit frame suffered the thunderbolt, consequently can lead to transmission line to appear the phenomenon of voltage surge because the electric current surge, not only can cause the influence to transmission line, power supply equipment on the interconnecting link all can cause destruction simultaneously, the mode that current mode adopted the lightning rod more is handled the guide and the ground connection of thunder and lightning electric current, but this kind of mode is when using, the thunder and lightning to great electric current can't reach isolated effect, lead to the thunder and lightning to still can cause the impaired phenomenon of circuit on the circuit is carried to the circuit through the circuit frame.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a lightning protection device for a power transmission line.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a transmission line lightning protection device, includes the support frame, the fixed equal fixedly connected with connecting plate of both ends lateral wall of support frame, the up end fixedly connected with mounting panel of connecting plate, the lightning rod that two symmetries of one side lateral wall fixedly connected with of connecting plate set up is kept away from to the mounting panel, the guide pin that two slopes of lateral wall fixedly connected with of lightning rod set up, one side lateral wall that the mounting panel was kept away from to the connecting plate is equipped with and is used for support frame installation and fixed installation mechanism, one side lateral wall that the mounting panel was kept away from to the support frame is equipped with and supports and isolated mechanism to the support frame, the lateral wall of mounting panel is equipped with and is used for carrying the conveying mechanism of ground connection to the electric current.

Preferably, installation mechanism includes that fixed connection keeps away from the isolated board of mounting panel one side lateral wall at the connecting plate, it sets up the installation screw rod to run through fixed connection in the isolated board two symmetries, be equipped with insulation support between installation screw rod and the isolated board.

Preferably, the isolation mechanism comprises a contact plate fixedly connected to the side wall of the support frame far away from the mounting plate, and the contact plate is made of wood.

Preferably, conveying mechanism includes the current conducting plate of two symmetry settings of fixed connection at mounting panel both ends lateral wall, the wiring end electric connection of current conducting plate has the transfer chain, the lateral wall cover of transfer chain is equipped with the parcel pipe.

Preferably, insulating layers are arranged in the supporting frame and the connecting plate, and flame retardant layers are wrapped on the side walls of the insulating layers and the contact plate.

Preferably, the guide rod and the lightning rod are obliquely installed, and the installation angle of the guide rod and the lightning rod is-30 degrees.

Compared with the prior art, the utility model, its beneficial effect does:

1. through setting up structures such as lightning rod, guide pin, support frame and insulating layer, utilize the guide pin to lead the thunder and lightning heavy current on the lightning rod to the air for to the release in the air of electric current, avoid flowing through the great and therefore impaired phenomenon of circuit of electric current on the circuit frame.

2. Through setting up mounting panel, current conducting plate and transfer chain isotructure, realize isolated isolation with lightning rod and circuit frame through insulating layer and fire-retardant layer, the cooperation direction is to release in electric current drainage to the air, and the cooperation transfer chain carries out ground connection with the residual current simultaneously and handles, avoids the circulation of thunder and lightning electric current on the circuit frame, prevents that thunder and lightning electric current from causing the influence to the use of transfer chain.

Drawings

Fig. 1 is a schematic view of a bottom structure of a support frame of a lightning protection device for a power transmission line according to the present invention;

fig. 2 is a schematic three-dimensional structure diagram of a lightning protection device for a power transmission line provided by the present invention;

fig. 3 is the utility model provides a transmission line lightning protection device's support frame inner structure schematic diagram.

In the figure: 1 support frame, 2 mounting panels, 3 lightning rods, 4 guide pins, 5 current conducting plates, 6 parcel pipes, 7 transfer chains, 8 connecting plates, 9 contact plates, 10 isolation plates, 11 installation screw rods, 12 fire-retardant layers, 13 insulating layers.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

Referring to fig. 1-3, a lightning protection device for a power transmission line includes a support frame 1, wherein side walls of two ends of the support frame 1 are fixedly and uniformly connected with a connection plate 8, an insulating layer 13 is respectively arranged in the support frame 1 and the connection plate 8, the insulating layer 13 and side walls of a contact plate 9 are respectively wrapped with a flame retardant layer 12, an upper end surface of the connection plate 8 is fixedly connected with a mounting plate 2, a side wall of the mounting plate 2, which is far away from the connection plate 8, is fixedly connected with two symmetrically arranged lightning rods 3, side walls of the lightning rods 3 are fixedly connected with two obliquely arranged guide rods 4, the guide rods 4 and the lightning rods 3 are obliquely mounted, and the mounting angle between the guide rods 4 and the lightning rods 3 is-30 degrees, wherein-30 degrees is the mounting angle shown in fig. 2, so as to avoid forming an electric arc between the guide rods 4 and the mounting plate 2, that is, the electric arc and current transmission between the guide rods 4 and the lightning rods 3 is realized, and the process of transmitting current to air can be realized;

the lateral wall of one side that mounting panel 2 was kept away from to connecting plate 8 is equipped with and is used for the installation and fixed installation mechanism to support frame 1, and installation mechanism includes that fixed connection keeps away from the isolated board 10 of mounting panel 2 one side lateral wall at connecting plate 8, runs through fixedly connected with two symmetries in isolated board 10 and sets up installation screw 11, is equipped with insulation support between installation screw 11 and the isolated board 10.

The lateral wall of one side that mounting panel 2 was kept away from to support frame 1 is equipped with and is supported and isolated mechanism to support frame 1, and isolated mechanism includes that fixed connection keeps away from the contact plate 9 of mounting panel 2 lateral wall at support frame 1, and contact plate 9 is wooden material.

The lateral wall of mounting panel 2 is equipped with and is used for carrying the conveying mechanism of ground connection to the electric current, and conveying mechanism includes the current conducting plate 5 that two symmetries of fixed connection at 2 both ends lateral walls of mounting panel set up, and the wiring end electric connection of current conducting plate 5 has transfer chain 7, and the lateral wall cover of transfer chain 7 is equipped with parcel pipe 6.

The utility model discloses during the use, as shown in fig. 1-3, at first install the upper end tip at the circuit frame through insulating board 10 and installation screw rod 11 with connecting plate 8 and support frame 1 during the use, be used for the contact between separation circuit frame and the thunder, cooperation insulating board 10 and insulation support can avoid the conductive contact between installation screw rod 11 and the circuit frame, cooperation insulating layer 13 simultaneously, insulating board 10, the insulating nature of contact plate 9 can realize insulating and separation effect to the thunder, when the thunder appears, draw thunder through lightning rod 3 and handle, the thunder current on lightning rod 3 passes through a plurality of guide pins 4 on lightning rod 3 at this moment and carries to the air, be used for realizing drainage and the direction to the thunder, to the electric current volume of reduction thunder and lightning current, remaining thunder and lightning current carries to current guide plate 5 through mounting panel 2, carry to on the transfer line 7 through current guide plate 5 afterwards, cooperation parcel pipe 6 carries out the isolation processing to transfer line 7 this moment, remaining electric current passes through 7 ground connection on lightning rod 3 at this moment, form the electric current transmission to the underground and forms the electric current dissipation current, and causes the electric current to be dispelled to the electric current, and handle, avoid its and circuit transmission damage to the transmission line, avoid the transmission line and the electric current transmission line damage, and the transmission equipment.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a device is hit in transmission line lightning protection, includes support frame (1), its characterized in that, the fixed equal fixedly connected with connecting plate (8) of both ends lateral wall of support frame (1), up end fixedly connected with mounting panel (2) of connecting plate (8), lightning rod (3) that one side lateral wall fixedly connected with two symmetries of connecting plate (8) set up are kept away from in mounting panel (2), guide pin (4) that two slopes of lateral wall fixedly connected with of lightning rod (3) set up, one side lateral wall that mounting panel (2) were kept away from in connecting panel (8) is equipped with and is used for installing and fixed installation mechanism to support frame (1), one side lateral wall that mounting panel (2) were kept away from in support frame (1) is equipped with and is supported and isolated mechanism to support frame (1), the lateral wall of mounting panel (2) is equipped with and is used for carrying the conveying mechanism of ground connection to the electric current.

2. The device for preventing lightning stroke of power transmission line according to claim 1, wherein the mounting mechanism comprises an isolation plate (10) fixedly connected to the side wall of the connecting plate (8) far away from the mounting plate (2), two symmetrically arranged mounting screws (11) are fixedly connected in the isolation plate (10) in a penetrating manner, and an insulating sleeve is arranged between the mounting screws (11) and the isolation plate (10).

3. The device of claim 2, wherein the insulating mechanism comprises a contact plate (9) fixedly connected to a side wall of the support frame (1) far away from the mounting plate (2), and the contact plate (9) is made of wood.

4. The transmission line lightning protection device according to claim 3, wherein the conveying mechanism includes two symmetrically arranged conductive plates (5) fixedly connected to side walls at two ends of the mounting plate (2), a terminal of each conductive plate (5) is electrically connected with a conveying line (7), and a side wall of each conveying line (7) is sleeved with a wrapping pipe (6).

5. The device of claim 4, wherein the support frame (1) and the connection plate (8) are both provided with an insulating layer (13), and the insulating layer (13) and the side wall of the contact plate (9) are both wrapped with a flame retardant layer (12).

6. The lightning protection device for the power transmission line according to claim 5, characterized in that the guide rod (4) and the lightning rod (3) are obliquely installed, and the installation angle between the guide rod (4) and the lightning rod (3) is-30 degrees.