CN210926568U - Blade discharging system of wind turbine generator - Google Patents
Blade discharging system of wind turbine generator Download PDFInfo
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- CN210926568U CN210926568U CN201921298076.1U CN201921298076U CN210926568U CN 210926568 U CN210926568 U CN 210926568U CN 201921298076 U CN201921298076 U CN 201921298076U CN 210926568 U CN210926568 U CN 210926568U
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- hammer
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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 utility model discloses a wind turbine generator system's blade discharge system, including electrically conductive hammer system, electrically conductive hammer system sets up between blade and conducting ring, the conducting ring is connected with unit ground system, electrically conductive hammer system is including electrically conductive hammer insulating handle, electrically conductive hammer insulating handle's bottom and electrically conductive hammer leg joint, electrically conductive hammer insulating handle's top is equipped with electrically conductive hammer, electrically conductive system is installed on electrically conductive hammer system upper portion. The utility model discloses a wind turbine generator system's blade discharge system discharges to the conducting ring through the conducting hammer system clearance at the former blade, then connect to discharge to the basis of unit ground system and increase a set of conducting system on the basis of guaranteeing blade and unit ground system are put through in real time to effectively play the effect of discharging, ensured the blade timeliness of discharging, reduced the blade and caused the harm because of static, thunder and lightning; the whole device is convenient to install and replace, flexible and simple in structure, strong in operability and obvious in grounding conductive effect.
Description
Technical Field
The utility model relates to a wind power generation technical field particularly, relates to a wind turbine generator system's blade discharge system.
Background
At present, a blade discharge system of a MW-grade wind turbine generator system adopts a gap discharge structure, and static electricity and thunder of blades can be led into a rack to the ground only when the gaps (air) are punctured to a certain value. The blades cannot be connected with the frame in real time, a good grounding channel cannot be formed, and when static electricity and thunder exist, the blades cannot effectively discharge electricity in time, so that the probability of blade damage is greatly increased, and the risk of tower climbing and maintenance of operation and maintenance personnel is increased due to the fact that the blades cannot discharge electricity in real time.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides a wind turbine generator system's blade discharge system can overcome the above-mentioned not enough of prior art.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
a blade discharging system of a wind turbine generator comprises a conductive hammer system, wherein the conductive hammer system is arranged between a blade and a conductive ring, the conductive ring is connected with a unit grounding system, the conductive hammer system comprises a conductive hammer insulating handle, the bottom end of the conductive hammer insulating handle is connected with a conductive hammer support, a conductive hammer is arranged at the top end of the conductive hammer insulating handle, the upper part of the conductive hammer system is provided with the conductive system, the conductive system comprises a blade carbon brush support, one side of the blade carbon brush support is fixedly combined with one side of the conductive ring carbon brush support through a fastener, the other side of the blade carbon brush support is fixedly connected with a blade carbon brush assembly through the fastener, and the other side of the conductive ring carbon brush support is fixedly connected with the conductive ring carbon brush assembly through the fastener; and one side of the conducting ring carbon brush support connected with the blade carbon brush support is provided with a carbon brush connecting hole.
Furthermore, one side of the blade carbon brush support connected with the conducting ring carbon brush support is provided with a first fastener mounting hole, one side of the conducting ring carbon brush support connected with the blade carbon brush support is provided with a second fastener mounting hole, and the fastener penetrates through the first fastener mounting hole and the second fastener mounting hole.
Further, one side of the blade carbon brush support connected with the blade carbon brush assembly is provided with a blade carbon brush assembly mounting seat, the blade carbon brush assembly mounting seat is provided with a blade carbon brush assembly mounting hole, the blade carbon brush assembly mounting seat is fixedly connected with the blade carbon brush assembly through a fastener, and the fastener penetrates through the blade carbon brush assembly mounting hole.
Further, the blade carbon brush assembly mounting hole is a centripetal hole.
Furthermore, one side of the conducting ring carbon brush support, which is connected with the conducting ring carbon brush assembly, is provided with a conducting ring carbon brush assembly mounting seat, a conducting ring carbon brush assembly mounting hole is formed in the conducting ring carbon brush assembly mounting seat, the conducting ring carbon brush assembly mounting seat is fixedly connected with the conducting ring carbon brush assembly through a fastener, and the fastener penetrates through the conducting ring carbon brush assembly mounting hole.
The utility model has the advantages that: the utility model discloses a wind turbine generator system's blade discharge system adds a set of conducting system on the basis of former wind turbine generator system clearance formula blade discharge system, guarantees blade and unit ground system put through in real time, has realized blade discharge ground connection double circuit, has ensured the blade timeliness that discharges, has reduced the blade and has caused the harm because of static, thunder and lightning; the newly added conductive system enables the blades of the original unit to effectively discharge in real time, the blades have no static residue, and the overhaul risk of personnel is reduced; the carbon brush assembly has good conductivity, and the grounding property is effectively ensured; the whole device is convenient to install and replace, flexible and simple in structure, strong in operability and obvious in grounding conductive effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and 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 these drawings without creative efforts.
Fig. 1 is a schematic view of a blade discharge system of a wind turbine according to an embodiment of the present invention;
fig. 2 is a top view of a blade discharge system of a wind turbine according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a blade discharge system of a wind turbine generator according to an embodiment of the present invention;
FIG. 4 is an enlarged view at A in FIG. 3;
fig. 5 is a schematic structural view of a blade carbon brush holder according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a conductive ring carbon brush holder according to an embodiment of the invention;
in the figure: 1. the blade, 2, the conductive hammer system, 3, the conductive ring, 4, the conductive system, 5, the unit grounding system, 103, the conductive band, 201, the conductive hammer support, 202, the conductive hammer, 203, the conductive hammer insulating handle, 404, the blade carbon brush support, 405, the blade carbon brush assembly, 406, the conductive ring carbon brush support, 407, the conductive ring carbon brush assembly, 408, the fastener, 4041 the blade carbon brush assembly mounting seat, 4042, the blade carbon brush assembly mounting hole, 4043, the blade carbon brush support fixing position, 4044, the fastener mounting hole one, 4061, the conductive ring carbon brush assembly mounting seat, 4062, the conductive ring carbon brush assembly mounting hole, 4063, the conductive ring carbon brush support fixing position, 4064, the fastener mounting hole two, 4065, and the carbon brush connecting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1 to 6, a blade discharging system of a wind turbine generator according to an embodiment of the present invention is a direct contact type discharging system of a blade and a frame of a wind turbine generator, and includes a conductive hammer system 2, the conductive hammer system 2 is disposed between the blade 1 and a conductive ring 3, the conductive ring 3 is connected to a unit grounding system 5, the conductive hammer system 2 includes a conductive hammer insulating handle 203, a bottom end of the conductive hammer insulating handle 203 is connected to a conductive hammer support 201, a top end of the conductive hammer insulating handle 203 is provided with a conductive hammer 202, a conductive system 4 is mounted on an upper portion of the conductive hammer system 2, the conductive system 4 includes a blade carbon brush support 404, one side of the blade carbon brush support 404 is fixed to the conductive hammer insulating handle 203 by combining with one side of a carbon brush support 406 by a fastener 408, one side of the blade carbon brush support 404 connected to the conductive ring support is provided with a fastener mounting hole first 4044, a second fastener mounting hole 4064 is formed in one side of the conductive ring carbon brush support 406, which is connected to the blade carbon brush support 404, and the fastener 408 penetrates through the first fastener mounting hole 4044 and the second fastener mounting hole 4064, that is, the blade carbon brush support 404 and the conductive ring carbon brush support 406 are fixedly mounted on the conductive hammer insulation handle 203 through the fastener 408, the first fastener mounting hole 4044, and the second fastener mounting hole 4064. The number of the first fastener mounting holes 4044 is two, the blade carbon brush support fixing positions 4043 are arranged between the two first fastener mounting holes 4044, the number of the second fastener mounting holes 4064 is two, the conducting ring carbon brush support fixing positions 4063 are arranged between the two second fastener mounting holes 4064, the other side of the blade carbon brush support 404 is fixedly connected with the blade carbon brush assembly 405 through a fastener 408, and the other side of the conducting ring carbon brush support 406 is fixedly connected with the conducting ring carbon brush assembly 407 through the fastener 408; a carbon brush connection hole 4065 is formed at one side of the conductive ring carbon brush holder 406 connected to the blade carbon brush holder 404. The blade carbon brush holder 404 and the conductive ring carbon brush holder 406 are made of galvanized material. The carbon brush attachment holes 4065 are used to connect the conductive leads of the blade carbon brush assembly 405 and the conductive ring carbon brush assembly 407, thereby ensuring that the conductive band 103 and the conductive ring 3 are always connected.
Blade carbon brush support 404 is connected one side of blade carbon brush subassembly 405 is equipped with blade carbon brush subassembly mount pad 4041, be equipped with blade carbon brush subassembly mounting hole 4042 on the blade carbon brush subassembly mount pad 4041, blade carbon brush subassembly mount pad 4041 with blade carbon brush subassembly 405 passes through fastener 408 fixed connection, fastener 408 passes blade carbon brush subassembly mounting hole 4042. The blade carbon brush assembly mounting hole 4042 is a centripetal hole, and the blade carbon brush assembly 405 is perfectly contacted with the blade conductive band 103 by using the centripetal hole because the moving track of the blade conductive band 103 is arc-shaped.
One side of the conductive ring carbon brush support 406, which is connected to the conductive ring carbon brush assembly 407, is provided with a conductive ring carbon brush assembly mounting seat 4061, the conductive ring carbon brush assembly mounting seat 4061 is provided with a conductive ring carbon brush assembly mounting hole 4062, the conductive ring carbon brush assembly mounting seat 4061 is fixedly connected to the conductive ring carbon brush assembly 407 through a fastener 408, and the fastener 408 penetrates through the conductive ring carbon brush assembly mounting hole 4062.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.
The wind power generator unit is installed at a firing place which is easily struck by lightning and belongs to an object more than one hundred meters, and the lightning must be conducted to the ground through a metal structure of the wind power generator unit. The utility model discloses a guarantee conduction device in the middle of the downlead of blade arrester and wind generator unit ground system, the blade flow of discharging is: the lightning is received to a blade N receptor, and then transmits thunder and lightning, static to the conductive band through the blade downlead the utility model discloses a blade discharge system inserts wind generating set ground system at last. Further, former MW level wind generating set discharges wind generating set ground system through the clearance behind transmitting the thunder and lightning to the conductive band, the utility model discloses a blade discharge system is just guaranteeing the real-time effectual switch-on of blade conductive band and wind generating set ground system. The working principle is that the conductive band 103 rotates along with the blade 1 when the blade changes the pitch, and the rotating stroke range is 0-90 degrees, so the blade discharging system of the utility model adopts the mode of the blade carbon brush component 405 to realize the real-time connection between the conductive band 103 and the newly-added conductive system 4; the conducting ring 3 is fixed on the cabin cover and belongs to a fixing part, so that an impeller of the wind generating set continuously rotates for 360 degrees, and the newly-added conducting system 4 is installed on a variable-pitch bearing, namely rotates along with the impeller, so that the conducting ring 3 is connected with the newly-added conducting system 4 in real time in a mode of adopting a conducting ring carbon brush component 407. The conducting ring 3 is connected with the unit grounding system 5 in real time, so that the blade 1 is ensured to be connected with the unit grounding system 5 in real time through the newly added conducting system 4 (lightning protection system), and the discharging process of the blade is completed.
The blade carbon brush support 404, the blade carbon brush assembly 405, the conductive ring carbon brush support 406, the conductive ring carbon brush assembly 407 and the fastener 408 guide charges harmful to the unit, such as static electricity, induced lightning and the like of the blade, into a grounding system of the unit through two groups of carbon brush systems.
In summary, with the aid of the technical solution of the present invention, the original conductive hammer system 2 is retained to ensure that the function of discharging through the gap between the conductive band 103 on the blade 1 and the conductive ring 3 is realized; the method is characterized in that a set of conducting system 4 is additionally arranged on the basis of an original wind turbine generator clearance type blade discharging system, so that the blades and a generator grounding system are ensured to be connected in real time, a blade discharging grounding double-loop is realized, the blade discharging timeliness is ensured, and the damage of the blades caused by static electricity and thunder is reduced; the newly added conductive system enables the blades of the original unit to effectively discharge in real time, the blades have no static residue, and the overhaul risk of personnel is reduced; the conductive system is a device with the same specification, and is convenient to produce, install and replace 3 blades; the carbon brush assembly has good conductivity, and the grounding property is effectively ensured; the whole device can effectively connect the blades with the frame, ensures the real-time discharge of the blades, is convenient to install and replace, and has the advantages of flexible and simple structure, strong operability and obvious grounding conductive effect.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and the number of carbon brushes and the structure of the carbon brush assembly are all within the protection scope of the patent; the embodiment of the utility model discloses an adopt the carbon brush form, but other contact electrically conductive forms (for example copper billet, copper brush) all are in the protection scope of this patent.
Claims (5)
1. A blade discharging system of a wind turbine generator comprises a conductive hammer system (2), wherein the conductive hammer system (2) is arranged between a blade (1) and a conductive ring (3), the conductive ring (3) is connected with a unit grounding system (5), the conductive hammer system (2) comprises a conductive hammer insulating handle (203), the bottom end of the conductive hammer insulating handle (203) is connected with a conductive hammer support (201), a conductive hammer (202) is arranged at the top end of the conductive hammer insulating handle (203), the blade discharging system is characterized in that a conductive system (4) is installed on the upper portion of the conductive hammer system (2), the conductive system (4) comprises a blade carbon brush support (404), one side of the blade carbon brush support (404) is fixed on the conductive hammer insulating handle (203) through a fastener (408) and one side of a conductive ring carbon brush support (406) in a combined mode, the other side of the blade carbon brush support (404) is fixedly connected with a blade carbon brush assembly (405) through a fastener (408), the other side of the conductive ring carbon brush support (406) is fixedly connected with a conductive ring carbon brush assembly (407) through a fastener (408); and a carbon brush connecting hole (4065) is formed in one side, connected with the blade carbon brush support (404), of the conducting ring carbon brush support (406).
2. The blade discharge system of the wind turbine generator according to claim 1, wherein a first fastener mounting hole (4044) is formed in one side, connected to the conductive ring carbon brush support (406), of the blade carbon brush support (404), a second fastener mounting hole (4064) is formed in one side, connected to the blade carbon brush support (404), of the conductive ring carbon brush support (406), and the fastener (408) penetrates through the first fastener mounting hole (4044) and the second fastener mounting hole (4064).
3. The blade discharge system of the wind turbine generator according to claim 1, wherein a blade carbon brush assembly mounting seat (4041) is provided on one side of the blade carbon brush bracket (404) connected to the blade carbon brush assembly (405), a blade carbon brush assembly mounting hole (4042) is provided on the blade carbon brush assembly mounting seat (4041), the blade carbon brush assembly mounting seat (4041) and the blade carbon brush assembly (405) are fixedly connected through a fastener (408), and the fastener (408) penetrates through the blade carbon brush assembly mounting hole (4042).
4. The blade discharge system of the wind turbine generator according to claim 3, wherein the blade carbon brush assembly mounting hole (4042) is a centripetal hole.
5. The blade discharge system of the wind turbine generator set according to claim 1, wherein a conductive ring carbon brush assembly mounting seat (4061) is provided on a side of the conductive ring carbon brush support (406) connected to the conductive ring carbon brush assembly (407), a conductive ring carbon brush assembly mounting hole (4062) is provided on the conductive ring carbon brush assembly mounting seat (4061), the conductive ring carbon brush assembly mounting seat (4061) is fixedly connected to the conductive ring carbon brush assembly (407) through a fastener (408), and the fastener (408) penetrates through the conductive ring carbon brush assembly mounting hole (4062).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921298076.1U CN210926568U (en) | 2019-08-12 | 2019-08-12 | Blade discharging system of wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921298076.1U CN210926568U (en) | 2019-08-12 | 2019-08-12 | Blade discharging system of wind turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210926568U true CN210926568U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921298076.1U Active CN210926568U (en) | 2019-08-12 | 2019-08-12 | Blade discharging system of wind turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210926568U (en) |
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2019
- 2019-08-12 CN CN201921298076.1U patent/CN210926568U/en active Active
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