CN215719260U - Anti-flashover fan - Google Patents
Anti-flashover fan Download PDFInfo
- Publication number
- CN215719260U CN215719260U CN202122135703.3U CN202122135703U CN215719260U CN 215719260 U CN215719260 U CN 215719260U CN 202122135703 U CN202122135703 U CN 202122135703U CN 215719260 U CN215719260 U CN 215719260U
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- China
- Prior art keywords
- fan
- lightning protection
- blade
- lightning
- wind turbine
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- Expired - Fee Related
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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
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- Wind Motors (AREA)
Abstract
The utility model discloses an anti-lightning fan which comprises a wind turbine generator, wherein the wind turbine generator is connected with fan blades through a variable pitch bearing, a blade partition plate is arranged at the root part connection position of the fan blades, a fan tower cylinder is arranged below the wind turbine generator, the fan blades are provided with a lightning return device, direct lightning protection equipment is arranged on the blade partition plate and consists of a metal electrode, a variable resistance suppressor, an electrostatic shielding ring and a mounting column, the metal electrode is arranged above the variable resistance suppressor, the electrostatic shielding ring is arranged below the variable resistance suppressor, the mounting column penetrates through and fixedly connects the metal electrode, the variable resistance suppressor and the electrostatic shielding ring, the lightning return device is provided with a blade lightning protection down line, and the blade lightning protection down line is communicated with the direct lightning protection equipment and then forms a passage with a grounding point. Through the setting of direct lightning protection equipment, lightning current discharge capacity is stable, and it is not high to the lightning protection downlead requirement, can effectively solve wind turbine generator system direct lightning protection problem.
Description
Technical Field
The utility model belongs to the technical field of wind motors, and particularly relates to an anti-flashover fan.
Background
At present, the direct lightning protection of the wind turbine generator adopts a lightning rod lightning-induced ground technology, which comprises a lightning receptor, a down conductor and a grounding link. For the wind turbine generator, the key point of the lightning-induced ground technology is the downlead part. The main lightning connection flash point of the wind turbine generator is arranged at the top of the blade, and the main discharge current is connected to the ground along the main wind wheel bearing and the variable pitch bearing through the fan tower barrel after the blade is subjected to lightning connection.
However, the direct lightning protection technology by lightning rod is necessary to have a qualified ground resistance, and wind turbines are mostly arranged in remote areas such as high mountains and the like and need to be independently made into ground resistance, so that the investment is very large, the grounding effect is not satisfactory, the ground potential counterattack phenomenon caused by unqualified ground resistance is very serious in lightning stroke, and the lightning current discharge channel is unstable, so that the fault of lightning stroke of fan blades is often generated. Therefore, an anti-flashover fan needs to be designed.
Disclosure of Invention
The utility model aims to provide an anti-flashover fan, which aims to solve the problem of lightning stroke faults caused by unstable lightning current discharge capacity of the existing lightning ground introduction technology.
In order to achieve the purpose, the specific technical scheme of the anti-flashover fan is as follows:
the utility model provides an anti-lightning fan, includes wind turbine generator system, wind turbine generator system connects fan blade through being equipped with become oar bearing, and there is a blade baffle fan blade root junction, and wind turbine generator system has a fan tower section of thick bamboo, fan blade is equipped with the ware of dodging back, is equipped with direct attack thunder protective equipment on the blade baffle, and direct attack thunder protective equipment comprises metal electrode, varistor inhibitor, electrostatic shield ring and erection column, and metal electrode sets up in varistor inhibitor top, and electrostatic shield ring sets up the below at the varistor inhibitor, and the erection column runs through fixed connection with metal electrode, varistor inhibitor, electrostatic shield ring, and the ware of dodging back is equipped with blade lightning protection downlead, and blade lightning protection downlead intercommunication direct attack thunder protective equipment back forms the route with the ground point. Through the setting of direct lightning protection equipment, lightning current discharge capacity is stable, and it is not high to the lightning protection downlead requirement, can effectively solve wind turbine generator system direct lightning protection problem.
Furthermore, the flash arrester is a metal disc, is easy to manufacture and is convenient to attach and mount.
Furthermore, the flash back device is a lightning rod, has a mature structure and is easy to purchase, maintain and replace.
Further, the flash-back device is equipped with at least two, evenly arranges in fan blade, increases the flash-back point, strengthens the anti-flashover function.
Furthermore, fan electricity group includes the main shaft, and the main shaft erects on fan tower section of thick bamboo through being equipped with the main bearing, main shaft linkage gear box, and the gear box passes through the shaft coupling and communicates the generator, and the mature structure is stable.
Furthermore, a shaft disc is arranged at the front end of the main shaft, and a lightning protection electric brush is arranged between the shaft disc and the fan tower cylinder.
Furthermore, an insulating support is arranged between the gear box and the fan tower barrel, and a gear is prevented from being corroded by current.
Furthermore, the coupler is an insulation coupler, so that current is prevented from passing through the generator.
Furthermore, after the blade lightning protection downlead is communicated with the direct lightning protection equipment, a passage is formed between the bearing seat of the main bearing and the grounding point, and a current grounding path is reasonably planned.
Furthermore, after the blade lightning protection downlead is communicated with the direct lightning protection equipment, a passage is formed between the shaft disc and the grounding point, and a current grounding path is reasonably planned.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the direct lightning protection device, lightning current erosion is prevented through the arrangement of the direct lightning protection device, the service life is prolonged, the lightning current discharge capacity is stable, lightning is prevented from falling into a protection area, the requirement on a lightning protection down lead is lowered, the direct lightning protection problem of the wind turbine generator can be effectively solved, the direct lightning protection device is simple in structure, obvious in effect and easy to maintain and manufacture, and the used novel direct lightning protection device is a passive device, so that the direct lightning protection device is energy-saving and environment-friendly.
2. The lightning arrester is a lightning rod, has a mature structure, and is easy to purchase, maintain and replace.
3. According to the utility model, the fan electric unit comprises the main shaft, the main shaft is erected on the fan tower drum through the main bearing, the main shaft is linked with the gear box, and the gear box is communicated with the generator through the coupler, so that the structure is mature and stable.
Drawings
Figure 1 is a general schematic view of the structure of the present invention,
fig. 2 is a schematic view of a direct lightning protection device.
The reference numbers in the figures illustrate: 11. the wind turbine generator comprises a main shaft, 111 shaft discs, 12 main bearings, 13 gear boxes, 14 couplers, 15 generators, 2 pitch bearings, 3 fan blades, 31 blade partition plates, 4 fan tower cylinders, 5 grounding points, 6 lightning back devices, 7 direct lightning protection devices, 71 metal electrodes, 72 variable resistance suppressors, 73 electrostatic shielding rings, 74 mounting columns, 8 blade lightning protection downlead, 91 lightning protection brushes and 92 insulation supports.
The specific implementation mode is as follows:
for a better understanding of the objects, structure and function of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
As shown in fig. 1 to 2, an anti-lightning fan is designed, which includes a wind turbine generator, the wind turbine generator is connected to a fan blade 3 through a pitch bearing 2, a blade partition 31 is provided at the root of the fan blade 3, a fan tower 4 is provided under the wind turbine generator, a grounding point 5 is provided under the fan tower 4, the fan blade 3 is provided with a lightning arrester 6, a direct lightning protection device 7 is provided on the blade partition 31, preferably at a position close to the root of the blade partition 31, the direct lightning protection device 7 is composed of a metal electrode 71, a variable resistance suppressor 72, an electrostatic shielding ring 73 and a mounting post 74, the metal electrode 71 is provided above the variable resistance suppressor 72, the electrostatic shielding ring 73 is provided below the variable resistance suppressor 72, the mounting post 74 fixedly connects the metal electrode 71, the variable resistance suppressor 72 and the electrostatic shielding ring 73, the lightning arrester 6 is provided with a lightning protection down line 8, the blade lightning protection downlead 8 is communicated with the direct lightning protection device 7 and then forms a passage with the grounding point 5.
The lightning current discharge capacity is stable through the arrangement of the direct lightning protection device 7, the lightning protection downlead requirement is not high, and the direct lightning protection problem of the wind turbine generator can be effectively solved. The core component of the direct lightning protection device 7 is the variable reluctance suppressor 72, the variable reluctance suppressor 72 is in two states of conduction and high impedance along with the change of the atmospheric electric field intensity, the change speed of the two states is millisecond level, and the variable reluctance suppressor 72 always is in the high impedance state when the atmospheric electric field intensity meets the forming condition of a lightning channel, so that the lightning channel is blocked, and the purpose of preventing lightning from falling in a protection area is achieved.
In the above embodiment, 2 examples are listed to achieve the above technical solution:
example 1
The embodiment provides an anti-flashover fan, which comprises a wind turbine generator, wherein the wind turbine generator comprises a main shaft 11, the main shaft 11 is erected on a fan tower drum 4 through a main bearing 12, the main shaft 11 is linked with a gear box 13, the gear box 13 is communicated with a generator 15 through a coupler 14, and the structure is mature and stable; an insulating support 92 is arranged between the gear box 13 and the fan tower barrel 4, so that electric current is prevented from corroding the gear; the coupler 14 is an insulating coupler, so that current is prevented from passing through the generator 15; after the blade lightning protection downlead 8 is communicated with the direct lightning protection device 7, a passage is formed between a bearing seat of the main bearing 12 and the grounding point 5, and a current grounding path is reasonably planned; a shaft disc 111 is arranged at the front end of the main shaft 11, and a lightning protection brush 91 is arranged between the shaft disc 111 and the fan tower drum 4; the wind turbine generator is connected with a fan blade 3 through a variable pitch bearing 2, a blade partition plate 31 is arranged at the root connection part of the fan blade 3, a fan tower barrel 4 is arranged below the wind turbine generator 1, a grounding point 5 is arranged below the fan tower barrel 4, the fan blade 3 is provided with a flash back device 6, the flash back device 6 is a metal disc, 7 flash back devices 6 are uniformly arranged on the fan blade 3, the flash back point is increased, the anti-flash function is enhanced, the manufacture is easy, the attachment and the installation are convenient, a direct lightning protection device 7 is arranged on the blade partition plate 31, the direct lightning protection device 7 is composed of a metal electrode 71, a variable resistance suppressor 72, an electrostatic shielding ring 73 and an installation column 74, the metal electrode 71 is arranged above the variable resistance suppressor 72, the electrostatic shielding ring 73 is arranged below the variable resistance suppressor 72, the installation column 74 fixedly connects the metal electrode 71, the variable resistance suppressor 72 and the electrostatic shielding ring 73 in a penetrating way, the flash back device 6 is provided with a blade lightning protection down lead 8, the blade lightning protection downlead 8 is communicated with the direct lightning protection device 7 and then forms a passage with the grounding point 5.
Example 2
The embodiment provides an anti-flashover fan, which comprises a wind turbine generator, wherein the wind turbine generator comprises a main shaft 11, the main shaft 11 is erected on a fan tower drum 4 through a main bearing 12, the main shaft 11 is linked with a gear box 13, the gear box 13 is communicated with a generator 15 through a coupler 14, and the structure is mature and stable; an insulating support 92 is arranged between the gear box 13 and the fan tower barrel 4, so that electric current is prevented from corroding the gear; the coupler 14 is an insulating coupler, so that current is prevented from passing through the generator 15; a shaft disc 111 is arranged at the front end of the main shaft 11, and a lightning protection brush 91 is arranged between the shaft disc 111 and the fan tower drum 4; after the blade lightning protection downlead 8 is communicated with the direct lightning protection device 7, a passage is formed through the shaft disc 111 and the grounding point 5, and a current grounding path is reasonably planned; the wind turbine generator is connected with a fan blade 3 through a variable pitch bearing 2, a blade partition plate 31 is arranged at the root connection part of the fan blade 3, a fan tower barrel 4 is arranged below the wind turbine generator 1, a grounding point 5 is arranged below the fan tower barrel 4, the fan blade 3 is provided with a flash back device 6, two flash back devices are arranged and evenly arranged on the fan blade 3, the flash back point is increased, the anti-flash function is strengthened, the flash back device 6 is a lightning rod, the structure is mature, direct lightning protection equipment 7 is arranged on the blade partition plate 31 which is easy to purchase, maintain and replace, the direct lightning protection equipment 7 consists of a metal electrode 71, a variable resistance suppressor 72, an electrostatic shielding ring 73 and an installation column 74, the metal electrode 71 is arranged above the variable resistance suppressor 72, the electrostatic shielding ring 73 is arranged below the variable resistance suppressor 72, and the electrostatic shielding ring 73 are fixedly connected through the installation column 74, the lightning arrester 6 is provided with a blade lightning protection downlead 8, and the blade lightning protection downlead 8 is communicated with the direct lightning protection equipment 7 and then forms a passage with the grounding point 5.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The utility model provides an anti-flash fan, includes wind turbine generator system, wind turbine generator system connects fan blade (3) through being equipped with become oar bearing (2), and there is blade baffle (31) fan blade (3) root junction, and wind turbine generator system has fan tower section of thick bamboo (4), its characterized in that: the fan blade (3) is provided with a lightning arrester (6), a direct lightning protection device (7) is arranged on the blade partition plate (31), the direct lightning protection device (7) is composed of a metal electrode (71), a variable resistance suppressor (72), an electrostatic shielding ring (73) and a mounting column (74), the metal electrode (71) is arranged above the variable resistance suppressor (72), the electrostatic shielding ring (73) is arranged below the variable resistance suppressor (72), the mounting column (74) penetrates through the metal electrode (71), the variable resistance suppressor (72) and the electrostatic shielding ring (73) to be fixedly connected, the lightning arrester (6) is provided with a blade lightning protection down line (8), and a passage is formed between the blade lightning protection down line (8) and a grounding point (5) after the direct lightning protection device (7) is communicated.
2. An anti-flashover fan according to claim 1, characterized in that the flasher back (6) is a metal disc.
3. An anti-lightning fan according to claim 1, characterised in that the lightning arrester (6) is a lightning rod.
4. An anti-flashover fan as claimed in claim 1, characterized in that said flashbacks (6) are provided in at least two, evenly arranged to the fan blades.
5. The anti-flashover fan as claimed in claim 1, wherein the fan electric group comprises a main shaft (11), the main shaft (11) is erected on the fan tower (4) through being provided with a main bearing (12), the main shaft (11) is linked with a gear box (13), and the gear box (13) is communicated with a generator (15) through being provided with a coupling (14).
6. The lightning protection fan according to claim 5, wherein a shaft disc (111) is arranged at the front end of the main shaft (11), and a lightning protection brush (9) is arranged between the shaft disc (111) and the fan tower (4).
7. An anti-flashover fan as claimed in claim 5, characterized in that an insulating support (92) is provided between the gearbox (13) and the fan tower (4).
8. An anti-flashover fan according to claim 5, characterized in that the coupling (14) is an insulating coupling.
9. The lightning protection fan according to claim 1, wherein the lightning protection down conductor (8) of the blade is communicated with the direct lightning protection device (7) and then forms a passage with the grounding point (5) through a bearing seat of the main bearing (12).
10. The lightning protection fan according to claim 1, wherein the lightning protection down lead (8) of the blade is communicated with the direct lightning protection device (7) and then forms a passage with the grounding point (5) through the shaft disc (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122135703.3U CN215719260U (en) | 2021-09-06 | 2021-09-06 | Anti-flashover fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122135703.3U CN215719260U (en) | 2021-09-06 | 2021-09-06 | Anti-flashover fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215719260U true CN215719260U (en) | 2022-02-01 |
Family
ID=80015069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122135703.3U Expired - Fee Related CN215719260U (en) | 2021-09-06 | 2021-09-06 | Anti-flashover fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215719260U (en) |
-
2021
- 2021-09-06 CN CN202122135703.3U patent/CN215719260U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220201 |