CN212106146U - Lightning protection system of wind generating set blade metal counter weight thing - Google Patents
Lightning protection system of wind generating set blade metal counter weight thing Download PDFInfo
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- CN212106146U CN212106146U CN202020806223.8U CN202020806223U CN212106146U CN 212106146 U CN212106146 U CN 212106146U CN 202020806223 U CN202020806223 U CN 202020806223U CN 212106146 U CN212106146 U CN 212106146U
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- wind generating
- 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
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Abstract
The present case is a lightning protection system of wind generating set blade metal counterweight, includes the blade arrester, still includes the drainage strip, the drainage strip is installed on wind generating set blade surface, and the metal counterweight is connected to the one end of drainage strip, and the other end of drainage strip links to each other with wind generator's blade arrester. The present case is through letting the drainage strip that links to each other with the blade arrester pass through metal counterweight top to realized the key lightning protection to the inside metal counterweight of blade, can effectively reduce the blade because of the damage that the thunderbolt metal counterweight caused, reduce economic loss.
Description
Technical Field
The utility model relates to a wind generating set blade lightning protection technical field especially relates to a lightning protection system of wind generating set blade metal counterweight.
Background
The wind energy is renewable clean energy, and has the advantages of large reserve, wide distribution, inexhaustibility and inexhaustibility. The utilization of wind energy is particularly suitable for coastal islands, grassland pasturing areas, mountain areas and plateau areas which are lack of water, fuel and inconvenient in traffic. The wind generating set is a device for converting wind energy into electric energy, and in order to ensure sufficient generating power, the wind generating set is large in size and high in height, so that the wind generating set is easy to be struck by lightning. The damage force of the lightning stroke in the natural world is large, and when the lightning directly hits the wind generating set, the internal elements of the set are usually damaged, and the generating set is directly paralyzed.
With the continuous increase of the single machine capacity of the wind generating set, the limitation of the lightning stroke problem to the fan is more prominent. According to statistics, in recent years, the lightning stroke damage rate of a certain wind power plant in the east coast of China reaches 5.56 pieces/hundred pieces/year, and immeasurable economic loss is caused to manufacturers and owners, so that the blade lightning protection system is necessary to be strengthened.
The wind turbine generator is generally provided with three blades, and the weight of the three blades needs to be ensured to be similar as much as possible in order to ensure the load balance of the generator, so that a counterweight box is arranged in the wind turbine generator during the production of the blades, and metal lead is injected into the counter weight box for balancing the counter weight according to the requirement after the production is finished. At present, each large blade manufacturer installs a blade tip lightning receptor and a blade leaf lightning receptor according to IEC61400-24 standard requirements for lightning protection of the blade, but does not perform lightning protection and grounding protection on a metal counterweight, so that an accident of lightning striking the metal counterweight of the blade is caused, and a large amount of economic loss is generated.
SUMMERY OF THE UTILITY MODEL
For overcoming the not enough of prior art, the utility model aims to provide a lightning protection system of wind generating set blade metal counterweight.
In order to achieve the above object, the utility model discloses a following technical scheme realizes:
the utility model provides a lightning protection system of wind generating set blade metal counterweight, includes the blade arrester, still includes the drainage strip, the drainage strip is installed on wind generating set blade surface, and the metal counterweight is connected to the one end of drainage strip, and the other end of drainage strip links to each other with wind power generator's blade arrester.
Preferably, the lightning protection system of wind generating set blade metal counterweight, wherein, the drainage strip includes the insulating strip and sets up the conducting strip on the insulating strip, the conducting strip sets up along insulating strip length direction, has the interval between the conducting strip.
Preferably, the lightning protection system for the metal counterweight of the wind turbine generator system blade is characterized in that two ends of each conducting strip in the length direction of the insulating strip are sharp parts.
Preferably, the lightning protection system for the metal counterweight of the wind generating set blade is characterized in that the conducting strip is in a diamond shape.
Preferably, the lightning protection system for the metal counterweight of the wind generating set blade is characterized in that the insulating strip is made of a high-insulating material.
Preferably, the lightning protection system for the metal counterweight of the wind generating set blade is characterized in that the conductive sheet is made of a corrosion-resistant conductive material.
Preferably, the lightning protection system for the metal counterweight of the wind generating set blade is characterized in that the conductive sheet is made of one or more of stainless steel, copper alloy, aluminum alloy or tungsten alloy.
Preferably, the lightning protection system of the wind generating set blade metal counterweight is characterized in that: the drainage strips are arranged on the windward side or the leeward side of the blades of the generator set.
Preferably, the lightning protection system of the wind generating set blade metal counterweight is characterized in that: the drainage strips are respectively arranged on the windward side and the leeward side of the blades of the generator set.
Preferably, the lightning protection system for the metal counterweight of the wind generating set blade is characterized in that the drainage strip is connected with at least one blade lightning receptor closest to the drainage strip.
The present case design is succinct, the practicality is strong, lets the drainage strip that links to each other with the blade arrester pass through metal counterweight top to realize the key lightning protection to the inside metal counterweight of blade, and then avoid the blade damage that lightning stroke blade metal counterweight leads to, reduce economic loss.
Drawings
Fig. 1 is a schematic structural view of a lightning protection system of a wind turbine generator system blade metal counterweight according to an embodiment of the present invention.
Fig. 2 is a schematic view of a structure of a drainage strip of a metal counterweight of a blade of a wind turbine generator system according to an embodiment of the present invention.
Description of reference numerals:
1-a lightning receptor in the leaf; 2-drainage strip; 3-a metal counterweight; 4-a blade tip receptor; 5-insulating strips; 6-conducting strip.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.
As shown in fig. 1-2, the embodiment provides a lightning protection system of wind generating set blade metal counterweight, including blade lightning receptor, still include drainage strip 2, drainage strip 2 installs on wind generating set blade surface, and metal counterweight 3 is connected to the one end of drainage strip 2, and the other end of drainage strip 2 links to each other with wind generator's blade lightning receptor.
The blade lightning receptor of the wind driven generator comprises a blade lightning receptor 1 and a blade tip lightning receptor 4. The metal counterweight 3 is inside the blade, and the drainage strip 2 is installed in the blade surface, through 3 tops of metal counterweight to link to each other with the blade arrester, because the blade arrester even has earthing device, so indirectly realized carrying out lightning protection to metal counterweight 3.
The drainage strip 2 comprises an insulating strip 5 and conducting strips 6 arranged on the insulating strip 5, wherein the conducting strips 6 are arranged along the length direction of the insulating strip 5, and intervals are arranged among the conducting strips 6. The drainage strip 2 comprises insulator strip 5 and a plurality of conducting strip 6, and conducting strip 6 installs on insulator strip 5 surfaces, has the interval between the conducting strip 6, and the drainage strip presents insulating state under the normal condition, nevertheless presents the conducting state under the effect of thunderstorm electric field.
The two ends of the conducting strip 6 in the length direction of the insulating strip 5 are sharp parts, and under the action of a thunderstorm electric field, the tips of the conducting strip 6 discharge to break down air gaps between the conducting strips 6, so that the current guiding strip 2 is in a conducting state.
The conducting strip 6 is in a diamond shape, the diamond shape is easy to process, and breakdown under a thunderstorm electric field is convenient to realize.
The insulating strip 5 is made of a high insulating material and the conducting strip 6 is made of a corrosion-resistant conducting material, so that the drainage strip is durable.
The conductive sheet 6 is made of one or more of stainless steel, copper alloy, aluminum alloy or tungsten alloy, and has good conductivity and strong corrosion resistance.
According to the specific situation of installation and aerogenerator position, the drainage strip 2 sets up the windward side or the leeward side at the generating set blade, effectively protects metal counterweight 3.
The drainage strips 2 are respectively arranged on the windward side and the leeward side of the blades of the generator set, so that the protection effect of the drainage strips 2 on the metal counterweight 3 is ensured.
The drainage strip 2 is at least connected with the blade lightning receptor closest to the drainage strip 2, so that the cost is saved and the lightning protection efficiency is guaranteed.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (10)
1. The utility model provides a lightning protection system of wind generating set blade metal counterweight, includes the blade arrester, its characterized in that still includes the drainage strip, the drainage strip is installed on wind generating set blade surface, and the metal counterweight is connected to the one end of drainage strip, and the other end of drainage strip links to each other with wind generator's blade arrester.
2. The lightning protection system for the metal counterweight of the blade of the wind generating set according to claim 1, characterized in that: the drainage strip comprises an insulating strip and conducting strips arranged on the insulating strip, the conducting strips are arranged along the length direction of the insulating strip, and intervals are arranged among the conducting strips.
3. The lightning protection system for the metal weights of the blades of the wind generating set according to claim 2, characterized in that: and two ends of each conducting strip in the length direction of the insulating strip are sharp parts.
4. The lightning protection system for the metal weights of the blades of the wind generating set according to claim 3, characterized in that: the conducting strip is in a diamond shape.
5. The lightning protection system for the metal weights of the blades of the wind generating set according to claim 2, characterized in that: the insulating strips are made of a high insulating material.
6. The lightning protection system for the metal weights of the blades of the wind generating set according to claim 2, characterized in that: the conductive sheet is made of a corrosion-resistant conductive material.
7. The lightning protection system for the metal weights of the blades of the wind generating set according to claim 6, wherein: the conductive sheet is made of one or more of stainless steel, copper alloy, aluminum alloy or tungsten alloy.
8. The lightning protection system for the metal counterweight of the blade of the wind generating set according to claim 1, characterized in that: the drainage strips are arranged on the windward side or the leeward side of the blades of the generator set.
9. The lightning protection system for metal weights of blades of wind generating set according to claim 8, characterized in that: the drainage strips are respectively arranged on the windward side and the leeward side of the blades of the generator set.
10. The lightning protection system for the metal counterweight of the blade of the wind generating set according to claim 1, characterized in that: the drainage strip is connected with at least the blade lightning receptor closest to the drainage strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020806223.8U CN212106146U (en) | 2020-05-15 | 2020-05-15 | Lightning protection system of wind generating set blade metal counter weight thing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020806223.8U CN212106146U (en) | 2020-05-15 | 2020-05-15 | Lightning protection system of wind generating set blade metal counter weight thing |
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| Publication Number | Publication Date |
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| CN212106146U true CN212106146U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020806223.8U Active CN212106146U (en) | 2020-05-15 | 2020-05-15 | Lightning protection system of wind generating set blade metal counter weight thing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982869A (en) * | 2021-12-11 | 2022-01-28 | 国网湖南省电力有限公司 | Fan blade conductor assembly, lightning protection device and installation method |
-
2020
- 2020-05-15 CN CN202020806223.8U patent/CN212106146U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982869A (en) * | 2021-12-11 | 2022-01-28 | 国网湖南省电力有限公司 | Fan blade conductor assembly, lightning protection device and installation method |
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