CN112377376A - Lightning protection system of wind generating set - Google Patents
Lightning protection system of wind generating set Download PDFInfo
- Publication number
- CN112377376A CN112377376A CN202011403981.6A CN202011403981A CN112377376A CN 112377376 A CN112377376 A CN 112377376A CN 202011403981 A CN202011403981 A CN 202011403981A CN 112377376 A CN112377376 A CN 112377376A
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- China
- Prior art keywords
- fixedly connected
- base
- spring
- lightning
- generating set
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/30—Lightning protection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a lightning protection system of a wind generating set, which comprises a base, a plurality of first buffer assemblies, a sealing cover and a lightning rod, wherein the first buffer assemblies are arranged on the base; the base is provided with a plurality of first guide grooves and a plurality of mounting grooves; the plurality of first buffer components are respectively positioned in the plurality of first guide grooves; the first spring of the first buffer assembly is fixedly connected in the first guide groove, the guide post is fixedly connected above the first spring, the connecting rod is fixedly connected above the guide post, the plurality of limiting springs are respectively and fixedly connected in the plurality of mounting grooves, and the plurality of positioning balls are respectively and fixedly connected with the plurality of limiting springs; the lightning rod is fixedly connected with the connecting rods respectively and penetrates through the base and the sealing cover; when the lightning rod moves down because of the vibrations that produce of thunderbolt, can drive connecting rod and guide post and move down for first spring is compressed, can provide the cushioning effect for the lightning rod by first spring, avoids the thunderbolt to cause the lightning rod vibrations and lead to wind generating set to damage, has improved life.
Description
Technical Field
The invention relates to the technical field of wind driven generators, in particular to a lightning protection system of a wind driven generator set.
Background
The wind driven generator is an electric device which can convert wind energy into mechanical energy, the mechanical energy drives a rotor to rotate and finally outputs alternating current, the wind driven generator is installed outdoors, the actual height is higher, meanwhile, the wind driven generator is installed on a mountain top or a plain area, a lightning stroke phenomenon easily occurs in thunderstorm weather, a lightning protection grounding device is needed to be used for protecting the wind driven generator, the lightning protection grounding device usually comprises a lightning rod, a down lead and a grounding device, the lightning rod is conducted into the grounding device through the down lead after absorbing the lightning current, a grounding body in the grounding device is a conductor which is directly contacted with the ground when being buried in the soil, the lightning rod in the general lightning protection grounding device does not have a buffering function, and the wind driven generator is easily damaged when in the lightning stroke.
Disclosure of Invention
The invention aims to provide a lightning protection system of a wind generating set, and aims to solve the problem that the lightning rod is easy to damage the wind generating set when being struck by lightning because the lightning rod does not have a buffer function.
In order to achieve the purpose, the invention provides a lightning protection system of a wind generating set, which comprises a base, a plurality of first buffer components, a sealing cover and a lightning rod, wherein the first buffer components are arranged on the base; the base is provided with a plurality of first guide grooves and a plurality of mounting grooves; the plurality of first buffer assemblies are respectively positioned in the plurality of first guide grooves; the first buffer assembly comprises a first spring, a guide post, a connecting rod, a plurality of limiting springs and a plurality of positioning balls; the first spring is fixedly connected with the base and is positioned in the first guide groove; the guide post is fixedly connected with the first spring and is positioned above the first spring, and the guide post is provided with a plurality of clamping grooves; the connecting rod is fixedly connected with the guide post and is positioned at one end of the guide post, which is far away from the first spring; the plurality of limiting springs are respectively and fixedly connected with the base and are respectively positioned in the plurality of mounting grooves; the positioning balls are respectively and fixedly connected with the limiting springs and are respectively positioned at one ends of the limiting springs far away from the base; the sealing cover is detachably connected with the base and is positioned above the base; the lightning rod is fixedly connected with the plurality of connecting rods respectively and penetrates through the base and the sealing cover.
The lightning protection system of the wind generating set further comprises a plurality of second buffer assemblies; the plurality of second buffer assemblies are fixedly connected with the plurality of connecting rods respectively and are positioned above the plurality of connecting rods respectively.
The second buffer assembly comprises a vertical frame, an outer column, a second spring and an inner column; the stand is fixedly connected with the base and is positioned above the base; the outer column is fixedly connected with the vertical frame and is positioned on one side of the vertical frame close to the connecting rod, and the outer column is provided with a second guide groove; the second spring is fixedly connected with the outer column and is positioned in the second guide groove; the inner column is fixedly connected with one end of the second spring, is far away from one end of the second spring and is fixedly connected with the connecting rod and is positioned between the second spring and the connecting rod.
The second buffer assembly comprises a limiting step and a clamping block; the limiting step is fixedly connected with the outer column and is positioned in the second guide groove; the fixture block is fixedly connected with the inner column and is positioned on the side edge of the inner column.
The lightning protection system of the wind generating set further comprises a first anti-abrasion pad; the first anti-abrasion pad is fixedly connected with the base and is positioned between the base and the lightning rod.
The lightning protection system of the wind generating set further comprises a second anti-abrasion pad; the second anti-abrasion pad is fixedly connected with the sealing cover and is positioned between the sealing cover and the lightning rod.
According to the lightning protection system of the wind generating set, when the lightning rod is struck by lightning in thunderstorm weather, the lightning rod conducts lightning current into the ground grounding device through the down lead, and when the lightning strike vibrates the lightning rod, the lightning rod moves downwards to drive the connecting rod and the guide post to move downwards, so that the first spring is compressed, and a buffer effect can be provided for the lightning rod by the first spring; the inner column can be driven to move downwards through the downward movement of the connecting rod, so that the second spring is stretched, and the effect of buffering the lightning rod can be further improved through the second spring. When the guide post moves downwards, the guide post can extrude the positioning ball into the mounting groove and compress the limiting spring; after lightning strike is finished, the guide post moves upwards under the action of elastic potential energy of the first spring, the inner post moves upwards under the action of the second spring, so that the lightning rod is driven to move upwards, and along with the upwards movement of the guide post, when the clamping groove moves to the positioning ball, the positioning ball pops out under the action of the limiting spring and is placed in the clamping groove, so that the position of the guide post can be fixed, and the lightning rod can return to the initial position, so that the best lightning protection effect can be achieved by the lightning rod; the position of the inner column can be limited through the limiting step and the clamping block, and the lightning rod can be further ensured to return to the initial position. Through sealed lid can provide rain-proof effect, avoids the rainwater to lead to the fact the influence to each part in the sealed lid. Through the first anti-abrasion pad, the lightning rod and the base can be prevented from being damaged due to friction. Through the second anti-abrasion pad, the lightning rod and the sealing cover can be prevented from being damaged due to friction. Through the mode, the lightning rod can provide a buffering effect during lightning stroke, the lightning stroke is avoided, the damage of the wind generating set caused by the vibration of the lightning rod is avoided, and the service life is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a lightning protection system of a wind generating set according to the present invention;
FIG. 2 is a front sectional view of a lightning protection system of a wind generating set according to the present invention;
FIG. 3 is a partial enlarged view A of FIG. 2;
FIG. 4 is a partial enlarged view B of FIG. 2;
fig. 5 is a schematic structural diagram of a lightning protection system of a wind generating set, which does not include a sealing cover.
The anti-abrasion device comprises a base 1, a first buffer assembly 2, a first sealing cover 3, a lightning rod 4, a second buffer assembly 5, a first anti-abrasion pad 6, a second anti-abrasion pad 7, a first guide groove 10, a mounting groove 11, a first spring 20, a guide column 21, a connecting rod 22, a limiting spring 23, a positioning ball 24, a vertical frame 50, an outer column 51, a second spring 52, an inner column 53, a limiting step 54, a clamping block 55, a shell 30, a sealing frame 31, a handle 32, a waterproof sleeve 33, a clamping groove 210 and a second guide groove 510.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 5, the present invention provides a lightning protection system for a wind turbine generator system: the lightning arrester comprises a base 1, a plurality of first buffer components 2, a sealing cover 3 and a lightning rod 4; the base 1 has a plurality of first guide grooves 10 and a plurality of mounting grooves 11; the first buffer components 2 are respectively positioned in the first guide grooves 10; the first buffer assembly 2 comprises a first spring 20, a guide post 21, a connecting rod 22, a plurality of limiting springs 23 and a plurality of positioning balls 24; the first spring 20 is fixedly connected with the base 1 and is positioned in the first guide groove 10; the guide post 21 is fixedly connected with the first spring 20 and is positioned above the first spring 20, and the guide post 21 is provided with a plurality of clamping grooves 210; the connecting rod 22 is fixedly connected with the guide post 21 and is positioned at one end of the guide post 21 far away from the first spring 20; the limiting springs 23 are respectively and fixedly connected with the base 1 and are respectively positioned in the mounting grooves 11; the positioning balls 24 are respectively and fixedly connected with the limiting springs 23 and are respectively positioned at one ends of the limiting springs 23 far away from the base 1; the sealing cover 3 is detachably connected with the base 1 and is positioned above the base 1; the lightning rod 4 is fixedly connected with the plurality of connecting rods 22 respectively and penetrates through the base 1 and the sealing cover 3.
In this embodiment, in a thunderstorm weather, when the lightning rod 4 is struck by lightning, the lightning rod 4 conducts lightning current into an underground grounding device through a down conductor, and when the lightning strike vibrates the lightning rod 4, the lightning rod 4 moves down to drive the connecting rod 22 and the guide post 21 to move down, so that the first spring 20 is compressed, and the first spring 20 can provide a buffering effect for the lightning rod 4; when the guide post 21 moves downwards, the guide post 21 can extrude the positioning ball 24 into the mounting groove 11 and compress the limiting spring 23; after the lightning strike is finished, the guiding post 21 moves upwards under the action of the elastic potential energy of the first spring 20, so as to drive the lightning rod 4 to move upwards, and along with the upwards movement of the guiding post 21, when the clamping groove 210 moves to the positioning ball 24, the positioning ball 24 pops out under the action force of the limiting spring 23 and is placed in the clamping groove 210, so that the position of the guiding post 21 can be fixed, and the lightning rod 4 can return to the initial position, so as to ensure that the lightning rod 4 can exert the optimal lightning protection effect; through sealed lid 3 can provide rain-proof effect, avoid the rainwater to lead to the fact the influence to each part in the sealed lid 3. Through the mode, can be in the thunderbolt for during lightning rod 4 provides the buffering effect, avoid the thunderbolt to cause 4 vibrations of lightning rod and lead to wind generating set to damage, improved life.
Further, the lightning protection system of the wind generating set further comprises a plurality of second buffer components 5; the second buffer components 5 are respectively and fixedly connected with the connecting rods 22 and are respectively positioned above the connecting rods 22.
In the present embodiment, the plurality of second buffer assemblies 5 can further improve the buffering effect on the lightning rod 4.
Further, the second buffer assembly 5 comprises a stand 50, an outer column 51, a second spring 52 and an inner column 53; the stand 50 is fixedly connected with the base 1 and is positioned above the base 1; the outer column 51 is fixedly connected with the stand 50 and is positioned on one side of the stand 50 close to the connecting rod 22, and the outer column 51 is provided with a second guide groove 510; the second spring 52 is fixedly connected with the outer column 51 and is positioned in the second guide groove 510; one end of the inner column 53 is fixedly connected with the second spring 52, and one end of the inner column 53, which is far away from the second spring 52, is fixedly connected with the connecting rod 22 and is positioned between the second spring 52 and the connecting rod 22.
In this embodiment, when a lightning strike vibrates the lightning rod 4, the lightning rod 4 moves down to drive the connecting rod 22 and the inner column 53 to move down, so that the second spring 52 is stretched, and the second spring 52 can further improve the buffering effect on the lightning rod 4.
Further, the second buffer assembly 5 comprises a limiting step 54 and a fixture block 55; the limit step 54 is fixedly connected with the outer column 51 and is positioned in the second guide groove 510; the latch 55 is fixedly connected with the inner column 53 and is positioned on the side of the inner column 53.
In this embodiment, after the lightning strike is over, the second spring 52 retracts and drives the inner post 53 and the lightning rod 4 to move upwards, and the position of the inner post 53 can be limited by the limiting step 54 and the fixture block 55, so that the lightning rod 4 can return to the initial position, and the lightning rod 4 can exert the best lightning protection effect.
Further, the lightning protection system of the wind generating set further comprises a first anti-abrasion pad 6; the first wear pad 6 is fixedly connected with the base 1 and is located between the base 1 and the lightning rod 4.
In the present embodiment, the first wear pad 6 can prevent the lightning rod 4 and the base 1 from being damaged due to friction.
Further, the lightning protection system of the wind generating set further comprises a second abrasion-proof pad 7; the second wear pad 7 is fixedly connected to the sealing cover 3 and is located between the sealing cover 3 and the lightning rod 4.
In this embodiment, the second abrasion prevention pad 7 can prevent the lightning rod 4 and the sealing cover 3 from being damaged by friction.
Further, the sealing cover 3 includes a housing 30 and a sealing frame 31; the shell 30 is in threaded connection with the base 1 and is positioned above the base 1; the sealing frame 31 is fixedly connected with the shell 30 and is positioned at the side of the shell 30.
In the embodiment, the base 1 is provided with a thread groove, and the outer side of the shell 30 is provided with a thread matched with the thread groove of the base 1, so that the shell 30 can be conveniently mounted and dismounted, and the overhaul is convenient for workers; the base 1 is further provided with a groove hole matched with the sealing frame 31, and after the base 1 is connected with the shell 30, the sealing frame 31 can be placed in the groove hole of the base 1, so that rainwater can be prevented from entering the shell 30.
Further, the sealing cover 3 further comprises a handle 32; the handle 32 is fixedly connected to the housing 30 and is located at the side of the housing 30.
In the present embodiment, the housing 30 can be conveniently controlled by the handle 32, so that the housing 30 can be conveniently mounted and dismounted.
Further, the sealing cover 3 further comprises a waterproof sleeve 33; the waterproof jacket 33 is fixedly connected with the sealing frame 31 and is positioned on the side edge of the sealing frame 31.
In the present embodiment, the waterproof jacket 33 can further prevent rainwater from entering the housing 30, and prevent the rainwater from damaging each component in the housing 30.
The working principle and the using process of the invention are as follows: after the lightning rod 4 is installed, when the lightning rod 4 is struck by lightning in thunderstorm weather, lightning current is conducted into an underground grounding device through a down lead by the lightning rod 4, and when the lightning rod 4 is vibrated by the lightning strike, the lightning rod 4 moves downwards so as to drive the connecting rod 22 and the guide post 21 to move downwards, so that the first spring 20 is compressed, and a buffering effect can be provided for the lightning rod 4 by the first spring 20; the inner column 53 is also driven to move downwards by the downward movement of the connecting rod 22, so that the second spring 52 is stretched, and the effect of providing a buffer for the lightning rod 4 can be further improved by the second spring 52. When the guide post 21 moves downwards, the guide post 21 can extrude the positioning ball 24 into the mounting groove 11 and compress the limiting spring 23; after the lightning strike is finished, the guiding post 21 moves upwards under the action of the elastic potential energy of the first spring 20, and the inner post 53 moves upwards under the action of the second spring 52, so as to drive the lightning rod 4 to move upwards, and as the guiding post 21 moves upwards, when the clamping groove 210 moves to the positioning ball 24, the positioning ball 24 pops out under the action of the limiting spring 23 and is placed in the clamping groove 210, so that the position of the guiding post 21 can be fixed, and the lightning rod 4 can return to the initial position, so as to ensure that the lightning rod 4 can exert the optimal lightning protection effect; the position of the inner column 53 can be limited by the limiting step 54 and the fixture block 55, so that the lightning rod 4 can be further ensured to return to the initial position. The first abrasion prevention pad 6 can prevent the lightning rod 4 and the base 1 from being damaged due to friction. The second anti-abrasion pad 7 can prevent the lightning rod 4 and the sealing cover 3 from being damaged due to friction. The base 1 is provided with a thread groove, and the outer side of the shell 30 is provided with a thread matched with the thread groove of the base 1, so that the shell 30 can be conveniently mounted and dismounted, and a worker can conveniently overhaul the shell; the base 1 is further provided with a groove hole matched with the sealing frame 31, and after the base 1 is connected with the shell 30, the sealing frame 31 can be placed in the groove hole of the base 1, so that rainwater can be prevented from entering the shell 30. The housing 30 can be conveniently controlled by the handle 32, thereby facilitating the mounting and dismounting of the housing 30. Through the mode, can be in the thunderbolt for during lightning rod 4 provides the buffering effect, avoid the thunderbolt to cause 4 vibrations of lightning rod and lead to wind generating set to damage, improved life.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A lightning protection system of a wind generating set is characterized by comprising a base, a plurality of first buffer assemblies, a sealing cover and a lightning rod; the base is provided with a plurality of first guide grooves and a plurality of mounting grooves; the plurality of first buffer assemblies are respectively positioned in the plurality of first guide grooves; the first buffer assembly comprises a first spring, a guide post, a connecting rod, a plurality of limiting springs and a plurality of positioning balls; the first spring is fixedly connected with the base and is positioned in the first guide groove; the guide post is fixedly connected with the first spring and is positioned above the first spring, and the guide post is provided with a plurality of clamping grooves; the connecting rod is fixedly connected with the guide post and is positioned at one end of the guide post, which is far away from the first spring; the plurality of limiting springs are respectively and fixedly connected with the base and are respectively positioned in the plurality of mounting grooves; the positioning balls are respectively and fixedly connected with the limiting springs and are respectively positioned at one ends of the limiting springs far away from the base; the sealing cover is detachably connected with the base and is positioned above the base; the lightning rod is fixedly connected with the plurality of connecting rods respectively and penetrates through the base and the sealing cover.
2. The lightning protection system for a wind generating set according to claim 1, wherein the lightning protection system for a wind generating set further comprises a plurality of second buffer assemblies; the plurality of second buffer assemblies are fixedly connected with the plurality of connecting rods respectively and are positioned above the plurality of connecting rods respectively.
3. The lightning protection system of a wind generating set according to claim 2, wherein the second buffer assembly comprises a stand, an outer post, a second spring and an inner post; the stand is fixedly connected with the base and is positioned above the base; the outer column is fixedly connected with the vertical frame and is positioned on one side of the vertical frame close to the connecting rod, and the outer column is provided with a second guide groove; the second spring is fixedly connected with the outer column and is positioned in the second guide groove; the inner column is fixedly connected with one end of the second spring, is far away from one end of the second spring and is fixedly connected with the connecting rod and is positioned between the second spring and the connecting rod.
4. The lightning protection system of a wind generating set according to claim 3, wherein the second buffer assembly comprises a limiting step and a clamping block; the limiting step is fixedly connected with the outer column and is positioned in the second guide groove; the fixture block is fixedly connected with the inner column and is positioned on the side edge of the inner column.
5. The lightning protection system for a wind generating set according to claim 4, wherein the lightning protection system for a wind generating set further comprises a first wear pad; the first anti-abrasion pad is fixedly connected with the base and is positioned between the base and the lightning rod.
6. The lightning protection system for a wind generating set according to claim 5, wherein the lightning protection system for a wind generating set further comprises a second wear pad; the second anti-abrasion pad is fixedly connected with the sealing cover and is positioned between the sealing cover and the lightning rod.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011403981.6A CN112377376B (en) | 2020-12-02 | 2020-12-02 | Lightning protection system of wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011403981.6A CN112377376B (en) | 2020-12-02 | 2020-12-02 | Lightning protection system of wind generating set |
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| CN112377376A true CN112377376A (en) | 2021-02-19 |
| CN112377376B CN112377376B (en) | 2021-10-22 |
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| CN202011403981.6A Active CN112377376B (en) | 2020-12-02 | 2020-12-02 | Lightning protection system of wind generating set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309675A (en) * | 2021-07-09 | 2021-08-27 | 深圳普泰电气有限公司 | Lightning protection system of wind generating set |
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