CN216111127U

CN216111127U - Lightning arrester for wind power blade

Info

Publication number: CN216111127U
Application number: CN202122584756.3U
Authority: CN
Inventors: 叶长青; 付雪辉; 吴礼国; 姚惠; 徐海卿; 周洌; 吴文倩; 刘可新
Original assignee: Operation Service Branch Of Guangxi Electric Power Co Ltd Of State Power Investment Group
Current assignee: Operation Service Branch Of Guangxi Electric Power Co Ltd Of State Power Investment Group
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-03-22
Anticipated expiration: 2031-10-26

Abstract

The utility model provides a wind power blade lightning arrester, which comprises a tower pole, a cabin shell, a flow guide cover, an annular conductor, a fan blade conducting device, a first fixing ring, a first drainage wire and a lightning rod, wherein the annular conductor comprises a metal ring body, an annular groove and an annular insulating pad, the fan blade conducting device comprises a first metal ball, a first insulating washer, a second fixing ring, a second drainage wire, a second metal ball, a conical spring, a second insulating washer, a bolt and a fan shell, an inner ring of the metal ring body is sleeved on the outer ring of the annular insulating pad, the annular groove is arranged between an inner ring and an outer ring of one side of the metal ring body, an insulating layer is arranged outside the second drainage wire, a plurality of second fixing rings are arranged inside the fan shell, the second drainage wire penetrates through the centers of the second fixing rings, one upward end of the second drainage wire extends out of the top end of the fan shell, and one upward end of the second drainage wire penetrates through the first insulating washer, and one upward end of the drainage wire is fixedly connected with a downward cambered surface of the metal ball.

Description

Lightning arrester for wind power blade

Technical Field

The utility model relates to the technical field of lightning protection devices, in particular to a lightning protection device for a wind power blade.

Background

The wind driven generator is an electric power device which converts wind energy into mechanical work, drives the rotor to rotate and finally outputs alternating current; the wind driven generator has a simple working principle, the wind wheel rotates under the action of wind force, the kinetic energy of the wind is converted into mechanical energy of a wind wheel shaft, and the generator is driven by the wind wheel shaft to rotate to generate electricity; in a broad sense, wind energy is also solar energy, so that the wind power generator is a heat energy utilization generator which uses solar energy as a heat source and uses the atmosphere as a working medium.

Because the fan blades of the wind driven generator are very high, the wind driven generator is easy to be struck by lightning, and an internal circuit system or a motor assembly is easy to damage after the wind driven generator is struck by lightning.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lightning arrester for a wind power blade, wherein a lightning rod is arranged at the topmost end of the lightning arrester, so that thunder and lightning are attracted when the thunder and lightning strike occurs, and the thunder and lightning are led away through a drainage wire arranged on a tower pole; if thunder strikes the fan blades, the fan blade conducting devices are arranged in the fan blades, the thunder can be led to the second drainage wire through the first metal ball, and then the first drainage wire is used for conducting drainage to the tower pole and then is drained away.

In order to achieve the purpose of the utility model, the utility model adopts the technical scheme that:

a wind power blade lightning arrester comprises a tower pole, a cabin shell, a flow guide cover, an annular conductor, a fan blade conducting device, a first fixing ring, a first drainage wire and a lightning rod, wherein the annular conductor comprises a metal ring body, an annular groove and an annular insulating pad, the fan blade conducting device comprises a first metal ball, a first insulating washer, a second fixing ring, a second drainage wire, a cover body, a second metal ball, a conical spring, a second insulating washer, a bolt and a fan shell, an inner ring of the metal ring body is sleeved on the outer ring of the annular insulating pad, the annular groove is arranged between an inner ring on one side of the metal ring body and an outer ring, an insulating layer is arranged outside the first drainage wire, an insulating layer is arranged outside the second drainage wire, a plurality of second fixing rings are arranged inside the fan shell, the second drainage wire penetrates through the centers of the second fixing rings, and the upward end of the second drainage wire extends out of the top end of the fan shell, the upward end of the drainage wire II penetrates through the first insulating washer, the upward end of the drainage wire II is fixedly connected with the downward cambered surface of the metal ball, the downward end of the drainage wire extends out of one side, close to the bottom, of the fan shell, the cambered surface on one side of the metal ball II penetrates through the center of the cambered surface in the cover body, the conical end of the conical spring movably abuts against one end, away from the cambered surface in the cover body, of the metal ball II, one end, away from the metal ball II, of the conical spring abuts against one end, away from the metal ball II, in the cover body, the two insulating washers II are sleeved on the two bolts, the two bolts attach to two sides of the bottom end of the drainage wire II in the fan shell and extend out of one side of the fan shell, one ends, extending out of the fan shell, of the two bolts are respectively sleeved with a second insulating washer, and the ends, extending out of the two bolts, extending out of the fan shell, are fixedly connected with one end, away from the metal ball II, of the cover body, tower pole one end with cabin shell bottom center department is connected fixedly, annular conductor registrates in cabin shell one end, and the ring channel keeps away from the tower pole setting, annular conductor upper end cambered surface department is equipped with the lightning rod, and is a plurality of flabellum conductive device keep away from metal ball one end all with the kuppe side is connected fixedly, kuppe one end is fixed with cabin shell one end swing joint, two activities of metal ball are supported to close in the ring channel, the tower pole is inside to be equipped with a plurality of gu fixed ring one, drainage line one runs through a plurality of gu fixed ring center department sets up, the setting is stretched out to one end from the tower pole near top one side to drainage line one, drainage line one makes progress one end and annular conductor and keeps away from ring channel one side, and is close to annular conductor bottom position and connects fixedly.

As an improvement, the diameter of the inner ring of the metal ring body is equal to the diameter of the outer ring of the annular insulating pad.

As an improvement, the second fixing rings are distributed in the fan shell at equal intervals.

As an improvement, the insulating gasket is arranged to be attached to the top end of the fan shell downwards.

As an improvement, the metal ball is arranged upwards by attaching the downward cambered surface to the insulating washer.

As an improvement, the positions of one side, extending out of the fan shell, of the two bolts and the position, extending out of the fan shell, of the two drainage wires form a straight line.

As an improvement, a plurality of fan blade conducting devices are distributed on the side face of the air guide sleeve at equal intervals.

As an improvement, a plurality of the first fixing rings are distributed at equal intervals inside the tower rod.

As an improvement, the top end of the lightning rod is higher than the top end of the fan shell.

The utility model has the beneficial effects that:

the utility model relates to a lightning arrester for a wind power blade, which is provided with a lightning rod at the highest point, wherein a blade conducting device is arranged in a blade; both can attract thunder and lightning when the thunder and lightning strikes; the lightning is led away through the first drainage wire and the second drainage wire, and insulating gaskets are additionally arranged among some conductors to prevent the connection of electricity.

Drawings

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

FIG. 2 is a schematic view of a fan blade conductive device according to the present invention;

FIG. 3 is an enlarged view of part A of the present invention;

fig. 4 is a schematic diagram of a loop conductor structure according to the present invention.

Reference symbol comparison table:

1. a tower pole; 2. a nacelle cover; 3. a pod; 4. a loop conductor; 5. a fan blade conducting device; 6. a first fixing ring; 7. a drainage wire I; 8. a first metal ball; 9. a first insulating washer; 10. a second fixing ring; 11. a drainage thread II; 12. a cover body; 13. a second metal ball; 14. a conical spring; 15. a second insulating washer; 16. a bolt; 17. a ferrule body; 18. an annular groove; 19. an annular insulating pad; 20. a fan housing; 21. a lightning rod.

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1-4, a wind power blade lightning arrester includes a tower pole 1, a nacelle housing 2, a wind deflector 3, an annular conductor 4, a fan blade conducting device 5, a first fixing ring 6, a first drainage wire 7 and a lightning rod 21, where the annular conductor 4 includes a metal ring body 17, an annular groove 18 and an annular insulating pad 19, the fan blade conducting device 5 includes a first metal ball 8, a first insulating pad 9, a second fixing ring 10, a second drainage wire 11, a cover body 12, a second metal ball 13, a conical spring 14, a second insulating pad 15, a bolt 16 and a fan housing 20, an inner ring of the metal ring body 17 is sleeved on the outer ring of the annular insulating pad 19, the annular groove 18 is disposed between an inner ring and an outer ring of one side of the metal ring body 17, an insulating layer is disposed outside the first drainage wire 7, an insulating layer is disposed outside the second drainage wire 11, and a plurality of the fixing rings 10 are disposed inside the fan housing 20, the second drainage wire 11 penetrates through the centers of the plurality of second fixing rings 10, the upward end of the second drainage wire 11 extends out of the top end of the fan casing 20, the upward end of the second drainage wire 11 penetrates through the first insulating washer 9, the upward end of the second drainage wire 11 is fixedly connected with the downward cambered surface of the first metal ball 8, the downward end of the second drainage wire 11 extends out of the side, close to the bottom end, of the fan casing 20, the cambered surface of one side, close to the metal ball 13, of the second metal ball 13 penetrates through the center of the cambered surface in the cover body 12, the conical end of the conical spring 14 movably abuts against the end, far from the cambered surface in the cover body 12, of the second metal ball 13, one end, far from the metal ball 13, of the conical spring 14 abuts against the end, far from the metal ball 13, in the cover body 12, of the second insulating washers 15 are sleeved on the two bolts 16, and the two bolts 16 abut against the two sides of the bottom end of the second drainage wire 11 in the fan casing 20, the lightning rod 21 is arranged at the cambered surface of the upper end of the annular conductor 4, one ends of the fan blade conductive devices 5, which are far away from the metal ball I8, are fixedly connected with the side face of the flow guide cover 3, one end of the flow guide cover 3 is movably connected and fixed with one end of the cabin shell 2, the metal ball II 13 is movably abutted in the annular groove 18, the fixing rings I6 are arranged in the tower rod 1, and the drainage line I7 penetrates through the centers of the fixing rings I6, one end of the first drainage wire 7 which is upward extends out of one side, close to the top end, of the tower pole 1, one end of the first drainage wire 7 which is upward is far away from one side of the annular groove 18 with the annular conductor 4, and the position, close to the bottom of the annular conductor 4, of the first drainage wire is fixedly connected.

The diameter of the inner ring of the metal ring body 17 is equal to the diameter of the outer ring of the annular insulating pad 19.

The second fixing rings 10 are distributed in the fan casing 20 at equal intervals.

The first insulating gasket 9 is arranged to be attached to the top end of the fan casing 20 downwards.

The downward cambered surface of the first metal ball 8 is attached to the first insulating washer 9 and arranged upward.

The position of one side of the two bolts 16 extending out of the fan shell 20 and the position of one side of the second drainage wire 11 extending out of the fan shell 20 are in a straight line.

The fan blade conducting devices 5 are distributed on the side surface of the air guide sleeve 3 at equal intervals.

A plurality of the fixing rings I6 are distributed in the tower pole 1 at equal intervals.

The top end of the lightning rod 21 is higher than the top end of the fan casing 20.

The utility model discloses a during the use, when the thunder and lightning struck when equipment, the thunder and lightning can strike the lightning rod to equipment topmost, the lightning rod leads to the drain wire one that the bottom is connected with the thunder and lightning through annular conductor, rethread drain wire one draws away the thunder and lightning, if the thunder and lightning strikes to the fan shell, fan shell top is equipped with metal ball one and attracts the thunder and lightning, draw the thunder and lightning to metal ball two through drain wire two, metal ball two supports closes in the ring channel that annular conductor established, the thunder and lightning draws annular conductor through metal ball two, in the drain wire one that establishes in leading the tower pole from annular conductor, draw away through drain wire one.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A wind power blade lightning protection device is characterized by comprising a tower rod (1), a cabin shell (2), a flow guide cover (3), an annular conductor (4), a fan blade conducting device (5), a fixing ring I (6), a drainage wire I (7) and a lightning rod (21), wherein the annular conductor (4) comprises a metal ring body (17), an annular groove (18) and an annular insulating pad (19), the fan blade conducting device (5) comprises a metal ball I (8), an insulating pad I (9), a fixing ring II (10), a drainage wire II (11), a cover body (12), a metal ball II (13), a conical spring (14), an insulating pad II (15), a bolt (16) and a fan shell (20), an inner ring of the metal ring body (17) is sleeved on the annular insulating pad (19), the annular groove (18) is arranged between an inner ring and an outer ring on one side of the metal ring body (17), the external portion of the first drainage wire (7) is an insulating layer, the external portion of the second drainage wire (11) is an insulating layer, the fan shell (20) is internally provided with a plurality of fixing rings (10), the second drainage wire (11) penetrates through the centers of the fixing rings (10), the upward end of the second drainage wire (11) extends out of the top end of the fan shell (20), the upward end of the second drainage wire (11) penetrates through the first insulating washer (9), the upward end of the second drainage wire (11) is fixedly connected with the downward cambered surface of the first metal ball (8), the downward end of the second drainage wire (11) extends out of the fan shell (20) from the side close to the bottom end, the cambered surface of one side of the second metal ball (13) penetrates through the center of the internal cambered surface of the cover body (12), and the conical end of the conical spring (14) movably abuts against the end of the second metal ball (13) and is far away from the end of the internal cambered surface of the cover body (12), one end of the conical spring (14), far away from the second metal ball (13), abuts against and is closed at one end, far away from the second metal ball (13), of the cover body (12), two insulating gaskets (15) are sleeved on the two bolts (16), the two bolts (16) are attached to two bottom ends of the drainage wire (11) in the fan shell (20) and extend out of one side of the fan shell (20), two insulating gaskets (15) are respectively sleeved at one ends, extending out of the fan shell (20), of the bolts (16), one ends, extending out of the fan shell (20), of the bolts (16) are fixedly connected with one end, far away from the second metal ball (13), of the cover body (12), one end of the tower rod (1) is fixedly connected with the center of the bottom of the cabin shell (2), the annular lightning conductor (4) is sleeved at one end of the cabin shell (2), the annular groove (18) is far away from the tower rod (1), and the arc surface of the upper end of the annular conductor (4) is provided with the needle (21), it is a plurality of flabellum electric installation (5) keep away from metal ball one (8) one end all with kuppe (3) side is connected fixedly, kuppe (3) one end is fixed with cabin shell (2) one end swing joint, two (13) activities of metal ball are to closing in ring channel (18), the inside a plurality of that is equipped with of king ring one (6), drainage wire one (7) run through a plurality of gu fixed ring one (6) center department sets up, drainage wire one (7) make progress one end and stretch out the setting from tower pole (1) near top one side, annular channel (18) one side is kept away from with annular conductor (4) to one (7) one end that makes progress, and is close to annular conductor (4) bottom position and connects fixedly.

2. A wind blade lightning conductor according to claim 1, characterised in that the diameter of the inner ring of the metal ring body (17) is equal to the diameter of the outer ring of the annular insulating mat (19).

3. The wind blade lightning protection device according to claim 1, wherein a plurality of the second fixing rings (10) are distributed at equal intervals inside the fan casing (20).

4. A wind blade lightning conductor according to claim 3, characterised in that the first insulating washer (9) is arranged to abut the top end of the fan casing (20) downwards.

5. A wind blade lightning protection device according to claim 4, characterised in that said first metal ball (8) is cambered downwards and is attached to said first insulating washer (9) upwards.

6. The lightning protection device for the wind power blade according to claim 1, wherein the two bolts (16) extend out of one side of the fan casing (20) and the two drainage wires (11) extend out of one side of the fan casing (20) in a straight line.

7. A wind blade lightning arrester according to claim 1, characterized in that a plurality of said blade conducting means (5) are equidistantly arranged on the side of the nacelle (3).

8. A wind blade lightning arrester according to claim 1, characterized in that a plurality of said first fixing rings (6) are equidistantly distributed inside the tower (1).

9. A wind blade lightning conductor according to claim 1, characterised in that the top end of the lightning rod (21) is higher than the top end of the fan casing (20).