CN108551080B - Thunder and lightning extraction device - Google Patents
Thunder and lightning extraction device Download PDFInfo
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- CN108551080B CN108551080B CN201810745117.0A CN201810745117A CN108551080B CN 108551080 B CN108551080 B CN 108551080B CN 201810745117 A CN201810745117 A CN 201810745117A CN 108551080 B CN108551080 B CN 108551080B
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- 238000000605 extraction Methods 0.000 title claims abstract description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 52
- 239000010935 stainless steel Substances 0.000 claims abstract description 52
- 230000003014 reinforcing effect Effects 0.000 claims description 41
- 230000001681 protective effect Effects 0.000 abstract description 9
- 230000006378 damage Effects 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 28
- 229910052799 carbon Inorganic materials 0.000 description 28
- 229910000831 Steel Inorganic materials 0.000 description 20
- 239000010959 steel Substances 0.000 description 20
- 244000185238 Lophostemon confertus Species 0.000 description 18
- 239000004020 conductor Substances 0.000 description 13
- 238000009434 installation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Wind Motors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention relates to the technical field of wind power, in particular to a lightning extraction device. It comprises the following steps: a lightning receiving mechanism for receiving lightning transmitted by the blade; one end of the torsion cable is connected with the lightning receiving mechanism; the torsion cable protection sleeve comprises a stainless steel pipe sleeve and a switching hose, wherein the stainless steel pipe sleeve and the switching hose are sleeved on the torsion cable; and the grounding component is connected with the other end of the torsion cable and used for guiding out lightning. The lightning receiving mechanism is arranged on the blade assembly and is used for receiving lightning after the blade is struck by lightning; the cable is then used for leading out the thunder and lightning from the blade subassembly back and goes into the earth, and the cable protective sheath is used for protecting the cable of turning round, reduces each link of turning round to the injury of turning round the cable, and then improves the life of turning round the cable.
Description
Technical Field
The invention relates to the technical field of wind power, in particular to a lightning extraction device.
Background
Along with the continuous increase of the single-machine capacity of the wind turbine generator, the high points of the wind turbine generator blades are also continuously increased, and the probability of lightning stroke of the wind turbine generator blades is very high in open fields, mountain tops and coastal areas. From the feedback condition of each wind power plant, lightning stroke not only causes the important factors of wind turbine generator system fault shutdown, but also directly influences the safe operation of the wind power plant.
In order to avoid the influence of lightning strike on the blades of the wind turbine generator, a lightning guide Lei Dianlan is generally fixed on the blades, lightning strike current is grounded through a lightning guide cable, the lightning guide cable is arranged inside the blades, and the lightning guide cable is arranged from the blade root to the blade tip and is fixed manually. However, in the existing lightning conductive cable still in the working state, the twisted cable of the lightning leading-out device is easy to be damaged by external force, so that the service life of the lightning leading-out device is reduced.
Therefore, a lightning leading-out device is needed to be provided, which can solve the problem of short service life of the lightning guiding torsion cable in the prior art.
Disclosure of Invention
The invention aims to provide a lightning extraction device which can prolong the service life of a lightning guiding torsion cable.
To achieve the purpose, the invention adopts the following technical scheme:
there is provided a lightning extraction device comprising:
a lightning receiving mechanism for receiving lightning transmitted by the blade;
one end of the torsion cable is connected with the lightning receiving mechanism;
the torsion cable protection sleeve comprises a stainless steel pipe sleeve and a switching hose, wherein the stainless steel pipe sleeve and the switching hose are sleeved on the torsion cable;
and the grounding component is connected with the other end of the torsion cable and used for guiding out lightning.
Preferably, the lightning receiving mechanism comprises a twisted cable fixing conductive bar, a connecting terminal arranged at one end of the twisted cable and a first fixing frame arranged on the twisted cable, wherein the twisted cable fixing conductive bar is fixed on the first fixing frame, and the twisted cable fixing conductive bar is fixedly connected with the connecting terminal.
Preferably, the grounding assembly includes a lightning counter.
Preferably, the fan blade mounting base bearing reinforcing plate comprises a fan blade mounting base bearing reinforcing plate, and is characterized by further comprising a final assembly component, wherein the final assembly component comprises a first fixing plate, a second fixing frame and a locking block for locking the second fixing frame on the fan blade mounting base bearing reinforcing plate, the fixing plate is fixed on one fan blade mounting base bearing reinforcing plate, and the second fixing frame is fixed on the other fan blade mounting base bearing reinforcing plate.
Preferably, the torsion cable protective sleeve further comprises a torsion hose, wherein the torsion hose is sleeved on the torsion cable, and two ends of the torsion hose are connected with the stainless steel tube sleeve.
Preferably, the fan fixing device further comprises a fixing assembly, wherein the fixing assembly comprises two third fixing frames and a support rod, the third fixing frames are respectively fixed at two ends of the support rod, one third fixing frame is sleeved on the torsion cable, and the other third fixing frame is connected in a fan root cabin of the fan.
Preferably, the lightning receiving mechanism comprises a current guide post, a steel shaft, a carbon brush box and a grounding ring; the steel shaft is fixed on a fan blade installation base bearing reinforcing plate, the steel shaft penetrates through the fan blade installation base bearing reinforcing plate to be rotationally connected with the grounding ring, and the carbon brush boxes are distributed on the outer side of the grounding ring and are connected with the steel shaft through current guide posts.
Preferably, the lightning receiving mechanism further comprises a second fixing plate, the grounding ring and the second fixing plate are respectively arranged on two sides of the bearing reinforcing plate of the fan blade mounting base, the steel shaft is fixed on the second fixing plate, the second fixing plate is fixed on the bearing reinforcing plate of the fan blade mounting base, and the steel shaft is arranged between the second fixing plate, the steel shaft is arranged between the grounding ring and the carbon brush box in an insulating mode.
Preferably, the carbon brush box comprises a box body, and a current outgoing line, a carbon brush, a constant voltage spring and a connecting support which are respectively arranged on the box body, wherein the connecting support and the second fixing plate are arranged on a bearing reinforcing plate of a base of the same fan blade installation, one end of the current outgoing line is connected with a steel shaft, the other end of the current outgoing line is connected with the carbon brush, and the carbon brush is in butt joint with the grounding ring.
Preferably, the grounding assembly comprises a cable twisting protection device and a cable twisting fixing plate, and the cable twisting protection device is connected with the other end of the switching hose.
The invention has the beneficial effects that:
the lightning receiving mechanism is arranged on the blade assembly and is used for receiving lightning after the blade is struck by lightning; the cable is then used for leading out the thunder and lightning from the blade subassembly back and goes into the earth, and the cable protective sheath is used for protecting the cable of turning round, reduces each link of turning round to the injury of turning round the cable, and then improves the life of turning round the cable.
Drawings
FIG. 1 is a schematic view of a lightning extraction device according to an embodiment of the invention;
FIG. 2 is a partial enlarged view of the lightning receiving mechanism of FIG. 1;
FIG. 3 is a schematic view of the twisted cable stationary conductor set-up provided in FIG. 2 in the K-direction;
FIG. 4 is a schematic view of the assembly provided in FIG. 1;
FIG. 5 is a schematic view of the structure of the securing assembly provided in FIG. 1;
FIG. 6 is a schematic view of the structure of the grounding assembly provided in FIG. 1;
FIG. 7 is a schematic view of a lightning extraction device according to a second embodiment of the invention;
FIG. 8 is a schematic view of the lightning receiving mechanism provided in FIG. 7;
FIG. 9 is a schematic view of the structure of the conductive ring provided in FIG. 7;
FIG. 10 is a schematic structural view of the carbon brush box provided in FIG. 7;
FIG. 11 is a side view of the carbon brush box provided in FIG. 10;
fig. 12 is a schematic structural view of the torsion cable protection device provided in fig. 7.
In the figure:
1. a lightning receiving mechanism; 2. twisting the cable; 3. a cable twisting protective sleeve; 4. a grounding assembly; 5. a final assembly component; 6. the fan blade is provided with a base bearing reinforcing plate; 7. a fixing assembly; 8. binding and binding the binding hoop; 9. an insulating layer;
11a, cable twisting fixed conductive bars; 12a, a wiring terminal; 13a, a first fixing frame;
111a, twisted cable conductor bars; 112a, conductive bar fixing bolts; 113a, conductive bar connecting bolts;
11b, current guide posts; 12b, a steel shaft; 13b, a second fixing plate; 14b, a carbon brush box; 15b, a ground ring; 16b, an adapter; 17b, a fixed flange; 18b, anti-drop hoops;
141b, a box body; 142b, current lead-out wire; 143b, carbon brushes; 144b, constant pressure springs; 145b, a connection bracket;
31. stainless steel tube sleeve; 32. a hose is connected; 33. twisting the hose;
31a, a first stainless steel tube sleeve; 31b, a second stainless steel tube sleeve; 31c, a third stainless steel pipe sleeve; 31d, a fourth stainless steel pipe sleeve; 32a, a first transfer hose; 32b, a second transfer hose;
41. a cable twisting protection device; 42. a torsion cable fixing plate;
51. a first fixing plate; 52. the second fixing frame; 53. a locking block;
6a, mounting a base bearing reinforcing plate on the first fan blade; 6b, mounting a base bearing reinforcing plate on the second fan blade;
71a, a third fixing frame; 72a, a bracket bar;
71b, a fixed bracket;
101. a first bearing; 102. and a second bearing.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be further described by the following detailed description with reference to the accompanying drawings.
The embodiment provides a lightning leading-out device, which mainly aims at the condition that the service life of a twisted cable 2 is reduced due to the fact that the twisted cable 2 is damaged by external force when the twisted cable 2 works. The lightning extraction device comprises a lightning receiving mechanism 1, a torsion cable 2, a torsion cable protective sleeve 3 and a grounding assembly 4. The lightning receiving mechanism 1 is arranged on the blade assembly and is used for receiving lightning after the blade assembly is struck by lightning; the twisted cable 2 is used for guiding lightning out of the blade assembly and then transmitting the lightning into the ground, and the twisted cable protective sleeve 3 is used for protecting the twisted cable 2, so that the damage of each twisting link to the twisted cable 2 is reduced, and the service life of the twisted cable 2 is prolonged.
Example 1
The embodiment provides a lightning leading-out device, which mainly aims at the condition that when the torsion cable 2 works, the service life of the torsion cable 2 is reduced due to the damage of external force to the torsion cable 2.
As shown in fig. 1, the lightning extraction device comprises a lightning receiving mechanism 1, a torsion cable 2, a torsion cable protective sleeve 3 and a grounding assembly 4.
As shown in fig. 1, the torsion cable protective sleeve 3 further comprises a torsion hose 33, the torsion hose 33 is sleeved on the torsion cable 2, and two ends of the torsion hose 33 are connected with the stainless steel tube sleeve 31; it should be noted that the kink hose 33 passes through the first fan blade mounting base bearing reinforcing plate 6a, and one end of the kink hose 33 passes through the first fan blade mounting base bearing reinforcing plate 6a and is connected with the stainless steel tube sleeve 31, and the specific connection mode is that the stainless steel tube sleeve 31 extends into the kink hose 33 to be in interference connection with the kink hose 33.
Specifically, referring to fig. 1, the twisted cable 2 is sleeved with a twisted hose 33, four stainless steel tube sleeves 31 and two adaptor hoses 32, and the grounding assembly 4 is disposed on the stainless steel tube sleeve 31 far from the lightning receiving mechanism 1. The four stainless steel sleeves 31 are respectively a first stainless steel sleeve 31a, a second stainless steel sleeve 31b, a third stainless steel sleeve 31c and a fourth stainless steel sleeve 31d, the two transfer hoses 32 are respectively a first transfer hose 32a and a second transfer hose 32b, one end of the first stainless steel sleeve 31a is connected with a first fixing frame 13a, the other end of the first stainless steel sleeve 31a is connected with one end of a kinking hose 33 through a binding hoop 8, the other end of the kinking hose 33 is connected with one end of the second stainless steel sleeve 31b through an interference fit, the other end of the second stainless steel sleeve 31b stretches into one end of the first transfer hose 32a and is in binding connection with one end of the third stainless steel sleeve 31c through the binding hoop 8, and the other end of the third stainless steel sleeve 31c is connected with one end of the fourth stainless steel sleeve 31d through the binding hoop 8. The other end of the fourth stainless steel tube sleeve 31d is fixed with a lightning counter, so that the purpose of grounding the torsion cable 2 is achieved.
As shown in fig. 1-2, in the lightning extraction device provided in this embodiment, the lightning receiving mechanism 1 includes a twisted cable fixing conductive strip 11a, a connection terminal 12a disposed at one end of the twisted cable 2, and a first fixing frame 13a disposed on the twisted cable 2, the twisted cable fixing conductive strip 11a is fixed on the first fixing frame 13a, and the twisted cable fixing conductive strip 11a is fixedly connected with the connection terminal 12a. Namely, the twisted cable fixing conductive bar 11a is fixed on the twisted cable 2 through the first fixing frame 13a and is fixedly connected with the wiring terminal 12a arranged on the twisted cable 2 through bolts, and both the twisted cable fixing conductive bar 11a and the wiring terminal 12a are made of conductive materials, so that the twisted cable fixing conductive bar 11a can transmit electricity on the blade to the twisted cable 2, and the twisted cable 2 can guide lightning led out of the blade to the ground. The connection terminal 12a is a copper double hole connection terminal 12a.
As shown in fig. 3, the twisted cable fixing conductor 11a includes a twisted cable conductor 111a, a conductor fixing bolt 112a for connecting the twisted cable 2 and the twisted cable conductor 111a, and a conductor connecting bolt 113a. Specifically, the twisted cable conductor 111a is fixedly connected to the connection terminal 12a swaged to the twisted cable 2. The conductor bar fixing bolts 112a and the conductor bar connecting bolts 113a are used for fixing the twisted cable conductor bar 111a and the twisted cable and enabling the twisted cable conductor bar 111a to be attached to and pressed against the twisted cable.
The lightning leading-out device further comprises a final assembly component 5 in this embodiment, as shown in fig. 4, the final assembly component 5 specifically comprises a first fixing plate 51, a second fixing frame 52 and a locking block 53 for locking the second fixing frame 52 on the fan blade mounting base bearing reinforcing plate 6, wherein the first fixing plate 51 is fixed on one fan blade mounting base bearing reinforcing plate 6, and the second fixing frame 52 is fixed on the other fan blade mounting base bearing reinforcing plate 6. That is, the fan blade mounting base bearing reinforcing plates 6 include two in this embodiment, and the two fan blade mounting base bearing reinforcing plates 6 are symmetrically arranged, so that the torsion cable 2 is fixed on the fan blade mounting base bearing reinforcing plates 6. For convenience of description, the fan blade mounting base bearing reinforcing plates 6 in this embodiment are referred to as a first fan blade mounting base bearing reinforcing plate 6a and a second fan blade mounting base bearing reinforcing plate 6b, respectively.
In order to fix the twisted cable 2 on the blade assembly integrally, to prevent the twisted cable 2 from being damaged due to a large twisting amplitude in each twisting link, in this embodiment, the lightning leading-out device further comprises a fixing assembly 7, as shown in fig. 5, the fixing assembly 7 comprises a third fixing frame 71a and a bracket rod 72a, wherein both ends of the bracket rod 72a are fixed on the third fixing frame 71a, and the number of the third fixing frames 71a is two, one third fixing frame 71a is arranged on the twisted cable 2, and the other third fixing frame 71a is arranged in a fan root cabin of the fan, so that the position between the twisted cable 2 and the blade assembly is fixed; specifically, the third fixing frame 71a is sleeved on the third stainless steel tube sleeve 31 c.
As shown in fig. 6, the grounding assembly 4 includes a lightning counter for performing inductive counting when lightning passes. Meanwhile, the lightning counter can count the lightning frequency of the whole year, so that technicians can collect data to study the local lightning weather, the lightning counter senses the lightning frequency through the torsion cable, the lightning is grounded through the torsion cable, the lightning can be guided out naturally, the blade assembly is safe and reliable, and the maintenance-free purpose is achieved.
The lightning leading-out device provided in the embodiment can smoothly lead out lightning to be grounded through the torsion cable 2, so that the fan bearing and equipment are effectively protected from being damaged by the lightning; the torsion cable 2 is connected with the blades through the torsion cable fixing conductive bars 11a, and the assembly component 5 fixes part of the torsion cable 2 on the blade mounting base bearing reinforcing plate 6, so that lightning is smoothly led out of the torsion cable 2 to be grounded. The switching hose 32 is sleeved on the torsion cable 2, so that the damage to the torsion cable 2 caused by each torsion link can be reduced when the lightning leading-out device works, the stainless steel tube sleeve 31 plays a role in mounting and fixing the torsion cable 2, the lightning counter counts the lightning frequency of the whole year, a researcher is convenient to research the local lightning weather, and the structure can lead lightning to be grounded naturally, so that the device is integrally safe and reliable, and maintenance-free or maintenance-free times are realized.
Example two
As shown in fig. 7, the lightning extraction device retains a lightning receiving means 1, a torsion cable 2, a torsion cable protective sheath 3 and a grounding assembly 4.
In the present embodiment, as shown in fig. 7 and 8, the lightning receiving mechanism 1 includes a current guide post 11b, a steel shaft 12b, a second fixing plate 13b, a carbon brush box 14b, a ground ring 15b, an adapter 16b, and a fixing flange 17b; the second fixing plate 13b and the fixing flange 17b are respectively fixed on different fan blade mounting base bearing reinforcing plates 6, and for convenience of distinction, the embodiment also comprises two fan blade mounting base bearing reinforcing plates 6 in the same way as the embodiment, and the two fan blade mounting base bearing reinforcing plates 6 are respectively a first fan blade mounting base bearing reinforcing plate 6a and a second fan blade mounting base bearing reinforcing plate 6b; wherein the second fixing plate 13b is fixed on the first fan blade mounting base bearing reinforcing plate 6 a; the steel shaft 12b is fixed on the second fixing plate 13b, and passes through the first fan blade mounting base bearing reinforcing plate 6a to be rotationally connected with the grounding ring 15b, the grounding ring 15b and the second fixing plate 13b are respectively arranged at two sides of the first fan blade mounting base bearing reinforcing plate 6a, and the carbon brush boxes 14b are distributed at the outer side of the grounding ring 15b and are connected with the steel shaft 12b through the current guide posts 11 b.
Meanwhile, the steel shaft 12b and the second fixing plate 13b, the steel shaft 12b and the grounding ring 15b and the second fixing plate 13b and the carbon brush box 14b are all arranged in an insulating mode, specifically, insulation is achieved through the insulation layer 9, the purpose of the insulation layer 9 is to ensure that lightning on the steel shaft 12b can be smoothly led into the carbon brush box 14b, interference of other parts made of non-insulating materials is prevented, and one end of the grounding ring 15b stretches into the adapter 16b and is fixedly connected with the torsion cable 2, so that the grounding ring 15b guides the lightning to the torsion cable 2.
As shown in fig. 7, the cable protecting cover 3 includes a stainless steel sleeve 31 and a adaptor hose 32, wherein the stainless steel sleeve 31 and the adaptor hose 32 are tightly connected by a tightening hoop 8, and the adaptor hose 32 and the stainless steel sleeve 31 play a role in protecting the cable 2, so that the cable protecting cover 3 can be assembled to adjust the torsion damping effect. The stainless steel tube sleeve 31 passes through the first fan blade mounting base bearing reinforcing plate 6a and the fixed flange 17b, and the second bearing 102 is further arranged on the inner side of the fixed flange 17b, and the torsion cable 2 sleeved with the stainless steel tube sleeve 31 can rotate in the fixed flange 17b to prevent the torsion cable 2 from being damaged in the rotating process.
As shown in fig. 9, an insulating layer 9 is disposed on the inner side wall of the conductive ring 13b, the conductive ring 13b is fixedly connected with the torsion cable 2 through screws, and the conductive ring 13b is in transitional connection with the stainless steel tube sleeve 31 through the adapter 16b, so that the conductive ring 13b is firmly connected with the torsion cable 2. The adapter 16b is tightly bound to the stainless steel tube sleeve 31 by the anti-slip collar 18 b.
In this embodiment, the current guide post 11b is a current-guiding double bolt, and the current guide post 11b is not only used for connecting the steel shaft 12b with the carbon brush box 14b, but also is used for transmitting the lightning on the steel shaft 12b to the carbon brush box 14b, so that the lightning is transmitted from the carbon brush box 14b to the torsion cable 2 through the grounding ring 15b. The steel shaft 12b passes through the fan blade mounting base bearing reinforcing plate 6 and is in rotary connection with the grounding ring 15b through the first bearing 101, wherein the steel shaft 12b is in interference fit connection with the inner ring of the first bearing 101, and the grounding ring 15b is in interference fit connection with the outer ring of the first bearing 101.
Specifically, the number of the carbon brush boxes 14b is plural, and the carbon brush boxes 14b are circumferentially and uniformly distributed on the outer side of the grounding ring 15b, so that the lightning energy can be introduced into the grounding ring 15b as soon as possible. As shown in fig. 10 and 11, the carbon brush box 14b includes a box body 141b, and a current outgoing line 142b, a carbon brush 143b, a constant voltage spring 144b and a connecting bracket 145b which are respectively disposed on the box body 141b, wherein the connecting bracket 145b and the second fixing plate 13b are disposed on the first fan blade mounting base bearing reinforcing plate 6a, one end of the current outgoing line 142b is connected with the steel shaft 12b, the other end is connected with the carbon brush 143b, and the carbon brush 143b abuts against the grounding ring 15b to ensure that the carbon brush 143b can guide lightning to the grounding ring 15b. The constant pressure spring 144b tightly pushes the carbon brush 143b and contacts the surface of the grounding ring 15b in a fitting manner, so that the carbon brush 143b is always fully contacted with the surface of the grounding ring 15b in a working state, and the function of current transmission is achieved.
In order to fix the twisted cable 2 on the blade assembly integrally, the damage to the twisted cable 2 caused by the large twisting amplitude in each twisting link is prevented, and the lightning leading-out device further comprises a fixing assembly 7 fixed on the blade assembly in the embodiment, wherein the fixing assembly 7 comprises a fixing bracket 71b, and the twisted cable 2 passes through the fixing bracket 71b to be limited.
In this embodiment, as shown in fig. 12, the grounding assembly includes a cable twisting protection device 41, and the cable twisting protection device 41 is connected to an end of the adaptor hose 32, to which the stainless steel tube sleeve 31 is not connected. The cable twisting protection device in this embodiment includes a cable twisting protection sleeve, a cable twisting fixing plate 42 is further disposed on the outer side of the cable twisting protection device 41, and the cable twisting fixing plate 42 is disposed on the outer side of the cable twisting protection device 41. The torsion cable fixing plate 42 is fixed with the equipment, and further fixes the lightning guiding device provided in the embodiment, adds a fixing point for the lightning guiding device, and ensures that the lightning guiding device is fixed firmly.
In the embodiment, the carbon brush box 14b is adopted to smoothly guide out the lightning to the ground, so that the fan bearing and equipment are effectively protected from being damaged by the lightning. The twisted cable 2 is sleeved with the twisted hose 33, so that the twisted cable 2 can be safely and not damaged by external force when the lightning leading-out device is in a working state.
Note that the basic principles and main features of the present invention and advantages of the present invention are shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the invention, and that various changes and modifications may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (3)
1. A lightning extraction device, comprising:
a lightning receiving means (1) for receiving lightning transmitted from the blade;
a torsion cable (2) one end of which is connected with the lightning receiving mechanism (1);
the torsion cable protection sleeve (3) comprises a stainless steel pipe sleeve (31) and a transfer hose (32), wherein the stainless steel pipe sleeve (31) and the transfer hose (32) are sleeved on the torsion cable (2);
a grounding component (4) connected with the other end of the torsion cable (2) for guiding out lightning;
the lightning receiving mechanism (1) comprises a twisted cable fixing conductive row (11 a), a wiring terminal (12 a) arranged at one end of the twisted cable (2) and a first fixing frame (13 a) arranged on the twisted cable (2), wherein the twisted cable fixing conductive row (11 a) is fixed on the first fixing frame (13 a), and the twisted cable fixing conductive row (11 a) is fixedly connected with the wiring terminal (12 a);
the fan blade mounting base bearing reinforcing plate comprises a fan blade mounting base bearing reinforcing plate (6) and is characterized by further comprising a final assembly component (5), wherein the final assembly component (5) comprises a first fixing plate (51), a second fixing frame (52) and a locking block (53) for locking the second fixing frame (52) on the fan blade mounting base bearing reinforcing plate (6), the first fixing plate (51) is fixed on one fan blade mounting base bearing reinforcing plate (6), and the second fixing frame (52) is fixed on the other fan blade mounting base bearing reinforcing plate (6);
the torsion cable protection sleeve (3) further comprises a torsion hose (33), the torsion hose (33) is sleeved on the torsion cable (2), and two ends of the torsion hose (33) are connected with the stainless steel tube sleeve (31);
the torsion cable (2) is sleeved with a torsion hose (33), four stainless steel sleeves (31) and two transfer hoses (32), the four stainless steel sleeves (31) are respectively a first stainless steel sleeve (31 a), a second stainless steel sleeve (31 b), a third stainless steel sleeve (31 c) and a fourth stainless steel sleeve (31 d), the two transfer hoses (32) are respectively a first transfer hose (32 a) and a second transfer hose (32 b), one end of the first stainless steel sleeve (31 a) is connected with a first fixing frame (13 a), the other end of the first stainless steel sleeve (31 a) is connected with one end of the torsion hose (33) through a binding hoop (8), the other end of the torsion hose (33) is connected with one end of the second stainless steel sleeve (31 b) in a matching mode, the other end of the second stainless steel sleeve (31 b) stretches into one end of the first transfer hose (32 a) and is connected with one end of the second transfer hose (32 b) through the binding hoop (8), and the other end of the first transfer hose (32 a) is connected with one end of the third binding hose (31 c) through the binding hoop (8);
the first fixing plate (31) is connected with the kinking hose (33), and the second fixing frame (52) is connected with the second stainless steel tube sleeve (31 b).
2. Lightning extraction device according to claim 1, characterized in that the grounding assembly (4) comprises a lightning counter.
3. The lightning leading-out device according to claim 1, further comprising a fixing assembly (7), wherein the fixing assembly (7) comprises two third fixing frames (71 a) and a support rod (72 a), the third fixing frames (71 a) are respectively fixed at two ends of the support rod (72 a), one third fixing frame (71 a) is sleeved on the torsion cable (2), and the other third fixing frame (71 a) is connected in a fan root cabin of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810745117.0A CN108551080B (en) | 2018-07-09 | 2018-07-09 | Thunder and lightning extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810745117.0A CN108551080B (en) | 2018-07-09 | 2018-07-09 | Thunder and lightning extraction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108551080A CN108551080A (en) | 2018-09-18 |
| CN108551080B true CN108551080B (en) | 2024-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810745117.0A Active CN108551080B (en) | 2018-07-09 | 2018-07-09 | Thunder and lightning extraction device |
Country Status (1)
| Country | Link |
|---|---|
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| CN208385835U (en) * | 2018-07-09 | 2019-01-15 | 潘海林 | Thunder and lightning ejector |
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| CN102272445A (en) * | 2010-03-31 | 2011-12-07 | 三菱重工业株式会社 | Wind-driven electricity generation device |
| CN102767487A (en) * | 2011-05-03 | 2012-11-07 | 西门子公司 | Lightning protection system for a wind turbine and method for protecting components of a wind turbine against lightning strikes |
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| CN108551080A (en) | 2018-09-18 |
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