CN204885828U - Bipolar lightning arrester - Google Patents
Bipolar lightning arrester Download PDFInfo
- Publication number
- CN204885828U CN204885828U CN201520521515.6U CN201520521515U CN204885828U CN 204885828 U CN204885828 U CN 204885828U CN 201520521515 U CN201520521515 U CN 201520521515U CN 204885828 U CN204885828 U CN 204885828U
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- CN
- China
- Prior art keywords
- annular electrode
- annular
- cabin
- electrode
- fixing frame
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y02E10/722—
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- Wind Motors (AREA)
Abstract
The utility model provides a bipolar lightning arrester, including rim, cabin and a tower section of thick bamboo, the top of a tower section of thick bamboo is fixed in in the cabin, and the rim is fixed in a side end in cabin through the connecting axle. The utility model discloses still include first annular electrode and second annular electrode, first annular electrode and rim be with the outside of axle sleeve in the connecting axle, first annular electrode and rim fixed connection, and the second annular electrode is coaxial and fixed cup jointing in its outside with a tower section of thick bamboo, and the second plane that the annular electrode is located lies in the below inclusive AND of first annular electrode, and its is tangent, has discharge gap on the second annular electrode between the minimum near any and first annular electrode in first annular electrode minimum. The utility model discloses messenger's lightning current does not pass through aerogenerator's main shaft and cabin casing, has reduced thunderbolt electromagnetic pulse's intensity.
Description
Technical field
The utility model belongs to wind-driven generator lightning protection field, is specifically related to a kind of bipolar lightning arrester.
Background technology
The high speed development of wind-driven generator is a performance of global energy problem, while wind-driven generator is built on a large scale in worldwide, thunder and lightning is also all the more serious to the threat of wind turbine generator, because, the average height of wind power generation group is all at about 100m, and under being exposed to the environment of lightening activity completely, and the destruction of thunder and lightning to wind turbine generator systematicly has serious Factual Damage simultaneously.
Although wind turbine generator all takes certain thunder-lightning measure, but the damage of blade and inner control panel is not still significantly reduced, and on cabin, establish a lightning rod be can not solve the Lightning Protection of wind turbine generator completely.Instead the invasion and attack of serious LEMP can be caused for the electronic equipment in cabin.In order to reduce engineering cost, according to the introduction in IEC61400-24 standard, wind turbine generator adopts blade as arrester, that can cause wind turbine generator equally is badly damaged, due to the imperfection of cascading water passage, the blade of wind turbine generator, generator, transformer and control circuit can be destroyed equally.Show according to the related data that IEC arranges, modal accident is the damage of low-voltage distribution system and communication system.
Utility model content
The purpose of this utility model is exactly the defect for prior art, provides a kind of bipolar lightning arrester, makes lightning current not by main shaft and the cabin housing of wind-driven generator, decreases the intensity of LEMP.
The utility model provides a kind of bipolar lightning arrester, and comprise wheel rim, cabin and tower cylinder, the top of tower cylinder is fixed in cabin, and wheel rim is fixed on a side end in cabin by connecting axle.The utility model also comprises the first annular electrode and the second annular electrode, first annular electrode and wheel rim are coaxially placed on the outside of connecting axle, first annular electrode is fixedly connected with wheel rim, second annular electrode is coaxial and fixedly sleeved outside in it with tower cylinder, there is discharging gap between the first annular electrode and the second annular electrode.Plane residing for second annular electrode is positioned at the below or tangent with it of the first annular electrode, near a bit and between the minimum point of the first annular electrode there is discharging gap in the first annular electrode minimum point on the second annular electrode.
Plane being perpendicular residing for plane residing for described first annular electrode and the second annular electrode, the minimum point of the first annular electrode and the second annular electrode are at grade.
Described discharging gap is 0 ~ 5mm.
Wheel rim comprises blade and holder, and blade is evenly fixed on the edge of holder; First annular electrode interior is provided with isoplanar first annular fixing frame with its concentric, evenly be provided with head rod between first annular fixing frame and the first annular electrode, the first annular fixing frame and head rod be provided with the link for connection fixing base and the first annular electrode.
Second annular electrode inside is provided with isoplanar second annular fixing frame with its concentric, and be evenly provided with the second connecting rod between the second annular fixing frame and the first annular electrode, the second annular fixing frame is fixedly connected with the outer wall of tower cylinder.
The utility model have employed 2 ring discharge poles, is separately fixed on wheel hub and tower cylinder, makes the quick bleed off of lightning current by the form of gap discharge.In prior art, after thunder and lightning hits blade, wheel hub can be flow to by lightning conducter on blade conduction thunder and lightning, and the gear box being entered blower fan cabin by the shaft coupling of wheel hub by its shell to the cascading water of tower cylinder to greatly; And lightning channel of the present utility model is connect by blade to dodge rear directly bleed off on the first annular electrode of wheel hub, the electric discharge between the second annular electrode installed by level on the first annular electrode on wheel hub and tower cylinder, bleed off lightning current; Because lightning current is not by engine room inside, so interference and infringement can not be caused to the electronic equipment in cabin and circuit.The utility model changes traditional thunder and lightning cascading water passage, decreases the intrusion degree of LEMP to cabin inner electronic equipment, effectively raises the anti-thunder ability of wind turbine generator.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the first annular electrode schematic diagram a;
Fig. 3 is the first annular electrode schematic diagram b;
Fig. 4 is the second annular electrode schematic diagram a;
Fig. 5 is the second annular electrode schematic diagram b;
Fig. 6 is utility model works schematic diagram
Wherein, 1-wheel rim, 2-tower cylinder, 3-cabin, 4-first annular electrode, 5-second annular electrode, 6-discharging gap, 7-holder, 8-blade, 9-first annular fixing frame, 10-head rod, 11-link, 12-second annular fixing frame, 13-second connecting rod, 14-connecting axle.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is convenient to be well understood to the utility model, but they do not form restriction to the utility model.
As shown in Figure 1, the utility model provides a kind of bipolar lightning arrester, and comprise wheel rim 1, cabin 3 and tower cylinder 2, the top of tower cylinder 2 is fixed in cabin 3, and wheel rim 1 is fixed on a side end in cabin 3 by connecting axle.Wheel rim 1 comprises blade 8 and holder 7, and blade 8 is evenly fixed on the edge of holder 7.The utility model also comprises the first annular electrode 4 and the second annular electrode 5, first annular electrode 4 and wheel rim 1 are coaxially placed on the outside of connecting axle 14, first annular electrode 4 is fixedly connected with wheel rim 1, second annular electrode 5 is coaxial and fixedly sleeved outside in it with tower cylinder 2, residing for second annular electrode 5, plane is positioned at the below or tangent with it of the first annular electrode 4, near a bit and between the minimum point of the first annular electrode 4 there is discharging gap 6 in the first annular electrode 4 minimum point on the second annular electrode 5.Plane being perpendicular residing for plane residing for described first annular electrode 4 and the second annular electrode 5, the minimum point of the first annular electrode 4 and the second annular electrode 5 are at grade.Described discharging gap 6 is 0 ~ 5mm.
As shown in Figure 2,3, first annular electrode 4 inside is provided with isoplanar first annular fixing frame 9 with its concentric, evenly be provided with multiple head rod 10 between first annular fixing frame 9 and the first annular electrode 4, the first annular electrode 4 and the first annular fixing frame 9 are connected into an entirety by described head rod 10.First annular fixing frame 9 and head rod 10 are provided with the link 11 for connection fixing base 7 and the first annular electrode 4.Plane being perpendicular residing for described link and the first annular electrode 4.Described link is radially uniformly distributed on the first annular fixing frame 9 and head rod 10.
As shown in Figure 4,5, the second annular electrode 5 inside is provided with and is evenly provided with multiple second connecting rod 13 with its concentric between isoplanar second annular fixing frame 12, second annular fixing frame 12 and the first annular electrode 4.Second annular fixing frame 12 is fixedly connected with the outer wall of tower cylinder 2, realizes being fixedly connected with of the second annular electrode 5 and tower cylinder 2.Residing plane and the tower cylinder 2 of described second annular electrode 5 are perpendicular.
As shown in Figure 6, dotted line is denoted as lightning channel when the utility model uses.First annular electrode rotates along with wheel rim, and the second annular electrode is fixed on tower cylinder, and the change of discharging gap is little, can ignore.After thunder and lightning hits blade 8, thunder and lightning by blade 8 connect dodge after directly on bleed off to the first annular electrode 4 being arranged at the wheel hub back side on, the electric discharge between second annular of being installed by level on the first annular electrode 4 on wheel hub and tower cylinder 2, bleed off lightning current.Define discharging gap 6 between the minimum point of the first annular electrode 4 and one end of the second annular electrode 5, and the carrying out that can continue is discharged.Because lightning current is not inner by cabin 3, so interference and infringement can not be caused to the electronic equipment in cabin 3 and circuit.The utility model changes traditional thunder and lightning cascading water passage, decreases the intrusion degree of LEMP to cabin 3 inner electronic equipment, effectively raises the anti-thunder ability of wind turbine generator.
The content that this specification is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (6)
1. a bipolar lightning arrester, comprise wheel rim (1), cabin (3) and tower cylinder (2), the top of tower cylinder (2) is fixed in cabin (3), wheel rim (1) is fixed on a side end in cabin (3) by connecting axle, characterized by further comprising the first annular electrode (4) and the second annular electrode (5), first annular electrode (4) and wheel rim (1) are coaxially placed on the outside of connecting axle (14), first annular electrode (4) is fixedly connected with wheel rim (1), second annular electrode (5) is coaxial and fixedly sleeved outside in it with tower cylinder (2), discharging gap is there is between first annular electrode and the second annular electrode.
2. bipolar lightning arrester according to claim 1, it is characterized in that the residing plane of the second annular electrode (5) is positioned at the below or tangent with it of the first annular electrode (4), the second annular electrode (5) exists discharging gap (6) near between any and the minimum point of the first annular electrode (4) of the first annular electrode (4) minimum point.
3. bipolar lightning arrester according to claim 2, it is characterized in that the residing plane of the first annular electrode (4) and the residing plane being perpendicular of the second annular electrode (5), the minimum point of the first annular electrode (4) and the second annular electrode (5) are at grade.
4. bipolar lightning arrester according to claim 3, is characterized in that described discharging gap (6) is 0 ~ 5mm.
5. bipolar lightning arrester according to claim 3, it is characterized in that wheel rim (1) comprises blade (8) and holder (7), blade (8) is evenly fixed on the edge of holder (7); First annular electrode (4) inside is provided with isoplanar first annular fixing frame (9) with its concentric, evenly be provided with head rod (10) between first annular fixing frame (9) and the first annular electrode (4), the first annular fixing frame (9) and head rod (10) be provided with the link (11) for connection fixing base (7) and the first annular electrode (4).
6. bipolar lightning arrester according to claim 5, it is characterized in that the second annular electrode (5) inside is provided with isoplanar second annular fixing frame (12) with its concentric, evenly be provided with the second connecting rod (13) between second annular fixing frame (12) and the first annular electrode (4), the second annular fixing frame (12) is fixedly connected with the outer wall of tower cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520521515.6U CN204885828U (en) | 2015-07-17 | 2015-07-17 | Bipolar lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520521515.6U CN204885828U (en) | 2015-07-17 | 2015-07-17 | Bipolar lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204885828U true CN204885828U (en) | 2015-12-16 |
Family
ID=54830161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520521515.6U Expired - Fee Related CN204885828U (en) | 2015-07-17 | 2015-07-17 | Bipolar lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204885828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864132A (en) * | 2020-06-30 | 2021-12-31 | 乌鲁木齐金风天翼风电有限公司 | Tower clearance monitoring method, device and equipment |
-
2015
- 2015-07-17 CN CN201520521515.6U patent/CN204885828U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864132A (en) * | 2020-06-30 | 2021-12-31 | 乌鲁木齐金风天翼风电有限公司 | Tower clearance monitoring method, device and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20200717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |