CN215890331U

CN215890331U - Novel wind generating set blade direct lightning protection device

Info

Publication number: CN215890331U
Application number: CN202122044264.5U
Authority: CN
Inventors: 张小飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-02-22
Anticipated expiration: 2031-08-27

Abstract

The utility model discloses a novel direct lightning protection device for a blade of a wind generating set, and relates to the field of lightning protection equipment. The technical key points are as follows: including the blade body, the blade body pointed end is connected with the arrester, and the arrester is disk gas discharge tube, and blade body week side is connected with a plurality of connecing and dodges and arranges, and a plurality of connecing dodge is arranged along blade body length direction setting, and a plurality of connecing dodge arranges the upper end and all is connected with the arrester, and a plurality of connecing dodge arranges and loops through netted conducting rod each other and connect, and netted conducting rod and connecing dodge arrange the bottom and all be connected with earth conductor. The utility model has the advantages that: can effectively increase and connect the sudden strain of a muscle area to make the thunder and lightning can carry out the water conservancy diversion fast through multiple passageway, reduce the dwell time of thunder and lightning on the blade, thereby promote the lightning protection effect to the blade body.

Description

Novel wind generating set blade direct lightning protection device

Technical Field

The utility model relates to the technical field of lightning protection equipment, in particular to a novel direct lightning protection device for a blade of a wind generating set.

Background

Wind power generation, as a clean renewable energy power generation mode, has been increasingly popular and valued by people of all countries in the world, and in recent years, China has become the most active wind power market in the world. The wind power generator set is extremely easy to be struck by lightning at the position according to the requirements of the wind power environment, and the position of the blade is the highest, so that the wind power generator set is the most easily struck by direct lightning. The wind blades are the most expensive equipment in the wind turbine, and if the wind blades are struck by lightning, the huge cost for dismounting and updating damaged parts is also borne except for the power generation during the loss repair period.

The above prior art solution has the following drawbacks: the existing lightning protection measures are that the lightning receptor is connected to the tip of the blade mostly, but the lightning receptor is connected to the tip only and has the defects of poor lightning protection effect and poor lightning protection effect.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a novel wind generating set blade direct lightning protection device, which has the advantages that: the lightning arrester, the lightning arrester rows and the mesh-shaped conducting rod are interacted, so that the lightning arresting area can be effectively increased, lightning can be quickly guided through various channels, the residence time of the lightning on the blade is shortened, the lightning protection effect on the blade body is improved, the strength of electromagnetic pulse of the lightning is reduced by the shunting effect of the mesh-shaped conducting rod, and the phenomena of cracking and explosion among the blade body, the lightning arrester rows and the mesh-shaped conducting rod due to transient high temperature of the conducting layer can be prevented; the lightning arrester that sets up can make the intensity of shunting the lightning current on the lightning arrester obtain effectual reduction for disk gas discharge tube, has also reduced the transient state high temperature that forms on the lightning arrester simultaneously.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a novel wind generating set blade direct lightning protection device, includes the blade body, blade body most advanced is connected with the arrester, the arrester is disk gas discharge tube, blade body week side is connected with a plurality of lightning-arrest rows, and is a plurality of the lightning-arrest is arranged and is followed blade body length direction sets up, and is a plurality of the lightning-arrest row upper end all with the arrester is connected, and is a plurality of the lightning-arrest row loops through netted conducting rod each other and connects, netted conducting rod with the lightning-arrest bottom of arranging all is connected with earth conductor.

By adopting the technical scheme, the interaction among the lightning receptor, the lightning rows and the mesh-shaped conducting rods can effectively increase the lightning receiving area, so that lightning can be quickly guided through various channels, the residence time of the lightning on the blade is reduced, the lightning protection effect on the blade body is improved, the intensity of electromagnetic pulses of the lightning is reduced by the shunting action of the mesh-shaped conducting rods, and the phenomena of cracking and explosion among the blade body, the lightning rows and the mesh-shaped conducting rods caused by transient high temperature of the conducting layers can be prevented; the lightning arrester that sets up can make the intensity of shunting the lightning current on the lightning arrester obtain effectual reduction for disk gas discharge tube, has also reduced the transient state high temperature that forms on the lightning arrester simultaneously.

The present invention in a preferred example may be further configured to: the lightning receptor comprises a disc-shaped base, the disc-shaped base is connected with the lightning receiving row, and two electrode plates are fixedly connected to the disc-shaped base.

Through adopting above-mentioned technical scheme, the arrester that sets up can make the intensity of shunting the lightning current on the arrester obtain effectual reduction, has also reduced the transient state high temperature that forms on the arrester simultaneously.

The present invention in a preferred example may be further configured to: a plurality of first mounting grooves and a plurality of have been seted up to blade body week side the second mounting groove, connect to dodge to arrange in the first mounting groove, netted conducting rod is arranged in the second installation row, connect to dodge arrange with netted conducting rod with the blade body parallel and level sets up.

Through adopting above-mentioned technical scheme, the first mounting groove and the second mounting groove that set up can carry out embedded installation with connecing to dodge row and netted conducting rod for the blade body surface keeps smooth transition effect, has guaranteed the aerodynamic characteristic of blade.

The present invention in a preferred example may be further configured to: the lightning arrester with netted conducting rod is respectively through bolted connection to first mounting groove with second mounting groove bottom.

Through adopting above-mentioned technical scheme, through bolted connection's mode, can be convenient for connect the installation of dodging row and netted conducting rod, have advantages such as connect firmly simultaneously.

The present invention in a preferred example may be further configured to: the netted conducting rod with connect the sudden strain of a muscle to arrange and be the aluminum alloy material.

By adopting the technical scheme, the aluminum alloy material can meet the requirements of the wire and has the advantages of low price and the like.

The present invention in a preferred example may be further configured to: the lightning receptor is grounded through a main conducting wire arranged inside the blade body.

Through adopting above-mentioned technical scheme, the leading wire that sets up can be with some direct introduction underground of the thunder and lightning on the arrester, reduces the dwell time of thunder and lightning.

In summary, the utility model includes at least one of the following beneficial technical effects:

1. through interaction among the arranged lightning receptors, the lightning rows and the mesh-shaped conducting rods, the lightning receiving area can be effectively increased, so that lightning can be quickly guided through various channels, the residence time of the lightning on the blade is shortened, the lightning protection effect on the blade body is improved, the intensity of electromagnetic pulses of the lightning is reduced through the shunting effect of the mesh-shaped conducting rods, and the phenomena of cracking and explosion among the blade body, the lightning rows and the mesh-shaped conducting rods due to transient high temperature of the conducting layers can be prevented; the lightning arrester is a disc-type gas discharge tube, so that the intensity of lightning current shunted to the lightning arrester can be effectively reduced, and the transient high temperature formed on the lightning arrester is also reduced;

2. the intensity of lightning current shunted to the lightning receptor can be effectively reduced through the lightning receptor, and the transient high temperature formed on the lightning receptor is also reduced;

3. can carry out embedded installation with connecing to dodge row and netted conducting rod through the first mounting groove that sets up and second mounting groove for the smooth transition effect is kept on blade body surface, has guaranteed the aerodynamic characteristic of blade.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a cross-sectional view of the present invention.

Reference numerals: 1. a blade body; 2. a lightning receptor; 21. a disc-shaped base; 22. an electrode sheet; 3. lightning row receiving; 4. a mesh-shaped conductive rod; 5. a ground lead; 6. a first mounting groove; 7. a second mounting groove; 8. a bolt; 9. a main conductor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figures 1 and 2, the novel wind generating set blade direct lightning protection device disclosed by the utility model comprises a blade body 1, wherein the tip end of the blade body 1 is connected with a lightning receptor 2, the lightning receptor 2 is a disc-type gas discharge tube, so that the intensity of lightning current shunted to a lightning receptor 3 can be effectively reduced, and the transient high temperature formed on the lightning receptor 2 is also reduced, a plurality of lightning receptors 3 are connected to the periphery of the blade body 1, a plurality of lightning receptors 3 are uniformly arranged at intervals, the plurality of lightning receptors 3 are arranged along the length direction of the blade body 1, the upper ends of the plurality of lightning receptors 3 are connected with the lightning receptor 2, so that the lightning receiving area can be effectively increased, lightning can be quickly guided through various channels, the residence time of the lightning on the blade is reduced, and the lightning protection effect on the blade body 1 is improved, the lightning receiving rows 3 are mutually and sequentially connected through the mesh-shaped conducting rod 4, the intensity of the electromagnetic pulse of the lightning is reduced by the shunting action of the mesh-shaped conducting rod 4, and the phenomena of cracking and explosion among the blade body 1, the lightning receiving rows 3 and the mesh-shaped conducting rod 4 caused by the transient high temperature of the conducting layer can be prevented; the bottom ends of the reticular conducting rod 4 and the lightning receiving bar 3 are both connected with a grounding wire 5, so that the shunted current can be conveniently led into the ground.

As shown in fig. 1 and 2, the lightning receptor 2 comprises a disk-shaped base 21, the disk-shaped base 21 is connected with the lightning receptor 3, and two electrode plates 22 are fixedly connected to the disk-shaped base 21, so that the intensity of lightning current shunted to the lightning receptor 3 can be effectively reduced, and the transient high temperature formed on the lightning receptor 2 can be reduced.

As shown in fig. 1, a plurality of first mounting grooves 6 and a plurality of second mounting grooves 7 have been seted up to blade body 1 week side, it arranges in first mounting groove 6 to connect to dodge to arrange 3, netted conducting rod 4 is arranged in the second mounting row, connect to dodge to arrange 3 and netted conducting rod and blade body 1 parallel and level setting, first mounting groove 6 and second mounting groove 7 can carry out embedded installation with connecting to dodge to arrange 3 and netted conducting rod 4, make blade body 1 surface keep smooth transition effect, the aerodynamic characteristic of blade has been guaranteed.

As shown in figure 1, the lightning receiving bar 3 and the netted conducting rod 4 are respectively connected to the bottoms of the first mounting groove 6 and the second mounting groove 7 through bolts 8, and the lightning receiving bar 3 and the netted conducting rod 4 can be conveniently mounted in a manner of connecting the bolts 8, and meanwhile, the lightning receiving bar and the netted conducting rod have the advantages of being firm in connection and the like.

As shown in fig. 1, the mesh-shaped conductive rod 4 and the lightning arrester 3 are made of aluminum alloy, and have the advantages of low price and the like while meeting the requirements of the wire by adopting the aluminum alloy.

As shown in fig. 3, the lightning receptor 2 is grounded through the main conductor 9 disposed inside the blade body 1, and the main conductor 9 can directly guide part of lightning on the lightning receptor 2 to the ground, so as to reduce the residence time of the lightning.

The implementation principle of the embodiment is as follows: when thunderstorm weather, the thunder and lightning is when contacting arrester 2, wherein some electric current can directly transmit to the ground through leading wire 9, the lightning bar 3 that sets up can play the reposition of redundant personnel this moment, prevent that instantaneous current from too big causing leading wire 9 to explode and split etc, the electric current shunts through lightning bar 3 and netted conducting rod 4, until reaching in lightning bar 3 and the earthing conductor 5 of netted conducting rod 4 bottom connection, can be respectively through earthing conductor 5 with current transmission to the ground, thereby play lightning protection effect.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides a novel wind generating set blade direct lightning protection device, includes blade body (1), its characterized in that: the utility model discloses a lightning arrester, including blade body (1), lightning arrester (2), blade body (1) point end is connected with lightning arrester (2), lightning arrester (2) is disk gas discharge tube, blade body (1) week side is connected with a plurality of lightning arresters (3), and is a plurality of lightning arrester (3) are followed blade body (1) length direction sets up, and is a plurality of lightning arrester (3) upper end all with lightning arrester (2) are connected, and is a plurality of lightning arrester (3) loop through netted conducting rod (4) each other and connect, netted conducting rod (4) with lightning arrester (3) bottom all is connected with ground connection wire (5).

2. The novel wind generating set blade direct lightning protection device according to claim 1, characterized in that: the lightning arrester (2) comprises a disc-shaped base (21), the disc-shaped base (21) is connected with the lightning arrester (3), and two electrode plates (22) are fixedly connected to the disc-shaped base (21).

3. The novel wind generating set blade direct lightning protection device according to claim 1, characterized in that: blade body (1) week side has been seted up a plurality of first mounting grooves (6) and a plurality of second mounting groove (7), it arranges in to connect to dodge row (3) in first mounting groove (6), netted conducting rod (4) are arranged in the second installation is arranged, connect to dodge row (3) and netted conducting rod with blade body (1) parallel and level setting.

4. The novel wind generating set blade direct lightning protection device according to claim 3, characterized in that: the lightning arrester (3) and the reticular conducting rod (4) are connected to the bottom of the first mounting groove (6) and the second mounting groove (7) through bolts (8) respectively.

5. The novel wind generating set blade direct lightning protection device according to claim 1, characterized in that: the reticular conducting rod (4) and the lightning arrester (3) are made of aluminum alloy materials.

6. The novel wind generating set blade direct lightning protection device according to claim 1, characterized in that: the lightning receptor (2) is grounded through a main conducting wire (9) arranged inside the blade body (1).