CN115788801B - Wind turbine blade lightning protection equipment - Google Patents
Wind turbine blade lightning protection equipment Download PDFInfo
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- CN115788801B CN115788801B CN202211629413.7A CN202211629413A CN115788801B CN 115788801 B CN115788801 B CN 115788801B CN 202211629413 A CN202211629413 A CN 202211629413A CN 115788801 B CN115788801 B CN 115788801B
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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 invention discloses wind turbine blade lightning protection equipment, which comprises an iron tower rod and a generator main body fixedly arranged at the upper end of the iron tower rod, wherein the front part of the generator main body is connected with a hub, the outer wall of the hub is of an annular equidistant structure, a plurality of blades are fixedly arranged on the rear side of the hub, a guide assembly is connected to the rear side of the hub, a lightning protection assembly is arranged on the top surface of the generator main body, the lightning protection assembly comprises a spherical lightning rod, a circular groove is coaxially arranged on the front wall of the spherical lightning rod, a base rod is connected inside the circular groove in a sliding manner and is rotationally connected with the top surface of the generator main body, and a plurality of lightning receiving mechanisms are arranged on the outer wall of the spherical lightning rod in an annular equidistant structure and are used for receiving direct lightning. The invention can avoid disturbance to the surrounding air flow, not only reduces the influence of the lightning protection component on the power generation efficiency of the rear exhaust motor set, but also can develop a large lightning protection net in thunderstorm weather, thereby achieving the effect of assisting the wind turbine generator set in full lightning protection.
Description
Technical Field
The invention relates to the technical field of wind turbine generator lightning protection, in particular to wind turbine generator blade lightning protection equipment.
Background
The wind generating set comprises a wind wheel and a generator, the wind wheel consists of blades, hubs, reinforcing members and the like, and is arranged in a very open area because the wind wheel is used for collecting and utilizing wind power resources, and is fixed at a high altitude by utilizing a rod-shaped iron tower, so that the influence of the surrounding environment landform on wind power collection of the wind generating set can be reduced to the greatest extent, but the wind generating set is extremely high, no shielding object exists around the wind generating set, meanwhile, the end part of a fan blade in the wind generating set is sharp, the point discharge phenomenon is extremely easy to occur in thunderstorm weather, and the damage of the fan blade and the wind generating set can be caused.
The wind turbine generator is used as expensive wind power generation equipment, the cost is high, the volume is huge, maintenance and repair are difficult to carry out, lightning protection measures for protecting blades of the wind turbine generator are needed to be arranged when the wind turbine generator is arranged, the current method is that metal blade tips and a plurality of groups of cylindrical lightning receptors are embedded in the wind turbine generator, lightning is struck on the blades and then led into the ground after the arrangement is carried out, various damage phenomena are generated, the surfaces of the blades are coked to form holes, the blades are swelled and burst and the like when the weight is high, in most cases, lightning strokes can leave small holes which are difficult to find by naked eyes on the surfaces of the blades, although the lightning strokes do not directly damage, the performance of the blades can still be influenced by accumulating months, if the fine and straight lightning rod is arranged on the wind turbine generator, the positions of the blades are also difficult to be contained in the wind turbine generator, the umbrella-shaped lightning rod can completely cover the positions of the blades and protect the blades, the umbrella-shaped structure can disturb surrounding air flow, and the thrust of the wind turbine generator can be greatly reduced due to the fact that the air acts on the rear row of the blades under the influence of the umbrella-shaped lightning rod.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects existing in the prior art, the invention provides the wind turbine generator blade lightning protection equipment, which can effectively solve the problems in the prior art.
Technical proposal
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the invention provides wind turbine blade lightning protection equipment, which comprises an iron tower rod and a generator main body fixedly arranged at the upper end of the iron tower rod, wherein the front part of the generator main body is connected with a hub, the outer wall of the hub is in an annular equidistant structure and fixedly provided with a plurality of blades, and the rear side of the hub is connected with a guide assembly;
the lightning protection assembly comprises a spherical lightning rod, a round groove is coaxially formed in the front wall of the spherical lightning rod, a base rod is connected inside the round groove in a sliding mode, the base rod is rotationally connected with the top surface of the generator body, a plurality of lightning receiving mechanisms are arranged on the outer wall of the spherical lightning rod in an annular equidistant structure, and the lightning receiving mechanisms are used for receiving direct lightning.
Preferably, the spherical lightning rod is hollow to form a cavity, the front part of the cavity is fixedly provided with a baffle, the rear wall of the baffle is rotationally connected with a reel, the middle part of the reel is coaxially and fixedly connected with a slide rod, through holes are formed in the baffle and the spherical lightning rod relative to the position of the slide rod, a rod groove which is in sliding fit with the slide rod is formed in the base rod, the rod groove is of an elliptic cylinder structure, and the upper inner wall and the lower inner wall of the rod groove are in clearance fit with the upper inner wall and the lower inner wall of the slide rod.
Preferably, the inner wall of the base rod is provided with an inner cavity corresponding to the position of the outer side of the rod groove, the inner cavity is internally provided with a balancing weight in sliding fit with the inner cavity, the inner cavity and the balancing weight are of annular structures, the front and rear outer walls of the balancing weight are symmetrically and fixedly provided with two first metal soft ropes, the front ends of the two first metal soft ropes located on the front side penetrate through the front wall of the inner cavity and extend to the front part of the rod groove in a U-shaped trend, the front ends of the two first metal soft ropes located on the front side are fixedly connected with the front end of the sliding rod, the rear ends of the two first metal soft ropes located on the rear side penetrate through the rear wall of the inner cavity and extend to the front part of the rod groove in an L-shaped trend, and the rear ends of the two first metal soft ropes located on the rear side extend to the front part of the rod groove and are fixedly connected with the outer wall of the sliding rod, and the four first metal soft ropes are in sliding connection with the base rod.
Preferably, the guide block is fixedly arranged at the rear end of the bottom surface of the base rod, the guide block is of a hemispherical structure, the opening end of the circular groove is provided with a spiral groove, two ends of two sides of the spiral groove are respectively provided with a limit groove, the ends of the limit grooves respectively extend to the front end and the rear end of the circular groove, the guide block, the spiral groove and the limit grooves are in sliding fit, the front end of the limit groove is provided with a guide groove, the guide groove is of an eccentric round platform structure with a large front part and a small rear part, and the axis position of the rear part of the guide groove corresponds to that of the guide groove.
Preferably, the lightning receiving mechanism comprises a fixing rod, the fixing rod is fixedly connected with the side wall of the spherical lightning rod, the fixing rod is arranged in an inclined structure with the outer side end offset backwards, a plurality of first lightning receiving rods are arranged on the rear side of the fixing rod in a linear equidistant structure, second lightning receiving rods are arranged behind the first lightning receiving rods, the first lightning receiving rods and the second lightning receiving rods which are randomly adjacent are arranged in a splayed structure, the first lightning receiving rods and the second lightning receiving rods are in curved cylindrical structures, and two side ends of the second lightning receiving rods are respectively hinged with the ends of the first lightning receiving rods adjacent to the two ends of the second lightning receiving rods.
Preferably, the outer side end of the front wall of the fixed rod and the outer side end of the front wall of the first lightning rod are fixedly provided with supporting plates, the supporting plates are of a half arc-shaped plate structure, the inner diameter of each supporting plate is equal to the diameter of each first lightning rod and the diameter of each second lightning rod, and an extension spring is fixedly arranged between the end part, far away from one side of the supporting plate, of each first lightning rod and each second lightning rod.
Preferably, the second metal soft rope is fixedly arranged at the inner side of the front wall of the second lightning rod at the rearmost end, the front end of the second metal soft rope sequentially penetrates through the first lightning rods, the second lightning rods and the first lightning rods and is in sliding connection with the second lightning rods, the front end of the second metal soft rope penetrates through the outer wall of the spherical lightning rod, extends to the inside of the cavity and is wound outside the reel, the second metal soft rope is in sliding connection with the spherical lightning rod, and the front end of the second metal soft rope is fixedly connected with the side wall of the reel.
Preferably, the guide assembly comprises a fixed ring, the fixed ring is fixedly connected with the rear wall of the hub coaxially, the rear wall of the fixed ring is fixedly provided with a guide ring through a plurality of inclined rods which are in annular equidistant structures, the rear wall of the guide ring is provided with grooves for adjacent two positions between the blades, the grooves are in arc-shaped structures, the outer walls of the base rods are in extrusion fit with the grooves, the rear side of the guide ring is provided with a limiting plate, the rear wall of the limiting plate is in a U-shaped structure, and the bottom surface of the limiting plate is fixedly connected with the top surface of the generator main body.
Preferably, two grounding leads are fixedly arranged on two sides of the limiting plate symmetrically, the grounding leads bypass the outer walls of two sides of the generator main body to extend to the lower portion and are flush with the bottom surface of the iron tower rod, the grounding leads guide direct lightning strike to the ground, the base rod is hinged to the upper portion of the limiting plate through a hinge shaft, two turntables are fixedly arranged on two sides of the hinge shaft symmetrically, the turntables are of a quarter cylinder structure, a fixed shaft is fixedly arranged on the lower end of the outer side wall of the turntables, an electric push rod is rotatably connected to the rear portion of the fixed shaft, the electric push rod is arranged in a front-high rear-low inclined structure, the rear end of the electric push rod is fixedly connected with the top surface of the generator main body, a fixing seat is further arranged behind the limiting plate, and the front end of the spherical lightning rod is in plug-in fit with the inside of the fixing seat.
Advantageous effects
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
1. the invention is provided with the lightning protection component, the lightning protection component can be turned up and put down through the rotary connection of the base rod and the limiting plate, so that the lightning protection component can not stand on the generator main body under the condition of no thunderstorm weather, the disturbance of the lightning protection component to the surrounding air flow is avoided, the influence of the lightning protection component on the power generation efficiency of the rear exhaust motor set is reduced, and the effect of assisting the wind turbine generator to carry out lightning protection is also achieved.
2. The lightning protection assembly consists of the spherical lightning rod and the plurality of lightning receiving mechanisms, the lightning receiving mechanisms are contracted in a normal state and are in a flat state like the spherical lightning rod, the power generation of the wind turbine generator is not affected as well, after the spherical lightning rod is erected along with the spherical lightning rod, the lightning receiving mechanisms are stretched out to form an inverted umbrella-shaped structure on the upper part of the spherical lightning rod under the action of a structure which enables the spherical lightning rod to rotate in the lightning protection assembly, the lightning receiving face of the lightning protection assembly in thunderstorm weather can be greatly expanded by the stretched structure, the lightning protection effect can be enough for protecting the positions of blades, and the whole wind turbine generator can be prevented from being damaged by direct lightning in the thunderstorm weather.
3. The front part of the wind turbine generator is provided with the guide component for controlling the hub, the rear part of the fixed ring fixed with the hub is provided with the plurality of grooves which correspond to gaps between every two adjacent blades, and the end points of the grooves closest to the center positions of the guide rings are equal to the distances between the inner ends of the two adjacent blades, so that under the extrusion of the erected base rod, the point of the grooves closest to the center positions can rotate to the position of the base rod, any one of the blades cannot be in a vertical upward state, the tip positions of the blades are prevented from being mutually perpendicular to the sky, the height of the uppermost blade is greatly reduced, all the blades are positioned below the lightning protection component, and the protection of the lightning protection component to the wind turbine generator is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic side view of the generator body and its upper structure according to the present invention;
FIG. 3 is a schematic view of the lightning protection assembly and the lightning receiving mechanism of the present invention after being unfolded;
FIG. 4 is a schematic view of an exploded view of the lightning protection assembly of the present invention;
fig. 5 is a schematic diagram of a sectional structure of a side wall of the spherical lightning rod of the invention;
fig. 6 is a schematic diagram of the sectional structure of the top surface of the spherical lightning rod of the invention;
FIG. 7 is a schematic view of the bottom structure of the base rod of the present invention;
FIG. 8 is a schematic view of a lightning receiving mechanism according to the present invention;
fig. 9 is a schematic sectional view of the base rod of the present invention.
Reference numerals in the drawings represent respectively: 1. iron tower rods; 101. a generator main body; 102. a hub; 103. a blade; 2. a guide assembly; 3. a lightning protection component; 4. spherical lightning rod; 5. a circular groove; 6. a base rod; 7. a lightning receiving mechanism; 8. a cavity; 9. a partition plate; 10. a reel; 11. a slide bar; 12. a through hole; 13. a rod groove; 14. an inner cavity; 15. balancing weight; 16. a first metal cord; 17. a guide block; 18. a spiral groove; 19. a limit groove; 20. a guide groove; 21. a fixed rod; 22. a first lightning rod; 23. a second lightning rod; 24. a supporting plate; 25. a tension spring; 26. a second metal cord; 27. a fixing ring; 28. a diagonal rod; 29. a guide ring; 30. a groove; 31. a limiting plate; 32. a ground lead; 33. a hinge shaft; 34. a turntable; 35. a fixed shaft; 36. an electric push rod; 37. a fixing seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The utility model provides a wind turbine blade lightning protection equipment, refer to fig. 1-9, including iron tower pole 1 and set firmly the generator main part 101 of iron tower pole 1 upper end, generator main part 101 is the wind turbine generator equipment of converting wind energy into electric energy, the front portion of generator main part 101 is connected with wheel hub 102, the wheel hub 102 outer wall is annular equidistant structure and sets firmly a plurality of blades 103, iron tower pole 1 above described, generator main part 101 and wheel hub 102 and blade 103 are the required structure of wind turbine generator in the prior art, the wheel hub 102 rear side is connected with direction subassembly 2, direction subassembly 2 is through driving wheel hub 102 rotation and then control blade 103 orientation;
the top surface of the generator main body 101 is provided with a lightning protection component 3, the lightning protection component 3 comprises a spherical lightning rod 4, the rear end of the spherical lightning rod 4 is of a conical lightning receiving rod structure, the middle part of the lightning protection component is of a spherical structure, the front end of the lightning rod is of a cylinder shape, the front wall of the spherical lightning rod 4 is coaxially provided with a round groove 5, the inside of the round groove 5 is slidably connected with a base rod 6, the round groove 5 not only provides a sliding fit space for the base rod 6, but also is used for reducing the overall weight of the spherical lightning rod 4, the base rod 6 is rotationally connected with the top surface of the generator main body 101, the lightning receiving rod 6 can be of a front-high rear-low inclined structure and is horizontally arranged at the rear part of the top surface of the generator main body 101 or is vertical to the top surface of the generator main body 101, the outer wall of the spherical lightning rod 4 is of an annular equidistant structure provided with a plurality of lightning receiving mechanisms 7, and the lightning receiving mechanisms 7 are used for receiving direct lightning.
Specifically, cavity 8 is formed to spherical lightning rod 4 inside cavity, cavity 8 can further reduce spherical lightning rod 4's weight, the baffle 9 has been set firmly in cavity 8 front portion, baffle 9 is two around being used for cutting off cavity 8, baffle 9 back wall rotation is connected with reel 10, reel 10 and baffle pass through rotation piece and rotate the connection each other, the rotation piece is the annular structure of transversal personally submitting L formula, the groove rather than the adaptation has also been seted up on the baffle 9 coaxially, can ensure reel 10's rotation under such structure, can also restrict reel 10's removal, make reel 10 keep laminating each other with baffle 9, the coaxial fixedly connected with slide bar 11 in the middle part of reel 10, slide bar 11 is hollow cylinder structure, through-hole 12 has all been seted up for slide bar 11 in the position on baffle 9 and the spherical lightning rod 4, through-hole 12 and slide bar 11 outer wall contactless, avoid slide bar 11 to receive spherical lightning rod 4 pivoted influence, set up with slide bar 11 sliding fit's 13 on the base rod 6, bar 13 is elliptic cylinder structure, upper and lower inner wall and slide bar 11 upper and lower inner wall clearance fit, slide bar 11 upper and lower both sides of slide bar 11 have been left in the clearance displacement because of slide bar 13 in the upper and lower cross section position is the upper and lower clearance 11 has been left in the groove 11.
Further, an inner cavity 14 is arranged at the position of the inner wall of the base rod 6 relative to the outer side of the rod groove 13, a balancing weight 15 which is in sliding fit with the inner cavity 14 is arranged in the inner cavity 14, the weight of the balancing weight 15 is larger than the sum of the sliding rod 11, the spherical lightning rod 4 and the lightning receiving mechanism 7, the inner cavity 14 and the balancing weight 15 are of annular structures, two first metal soft ropes 16 are symmetrically and fixedly arranged on the front and rear outer walls of the balancing weight 15, the front ends of the two first metal soft ropes 16 positioned at the front penetrate through the front wall of the inner cavity 14 and extend to the front part of the rod groove 13 in a U-shaped trend, the front ends of the two first metal soft ropes 16 positioned at the front are fixedly connected with the front end of the sliding rod 11, when the base rod 6 is converted into a flat arrangement from a vertical state, the balancing weight 15 slides backwards along the inner cavity 14 due to the fact that the base rod 6 is in a front high and rear low inclined state, and then the sliding rod 11 is pulled down in the rod groove 13 at the front side by the two first metal soft ropes 16, the rear ends of the two first metal soft ropes 16 positioned at the rear side penetrate through the rear wall of the inner cavity 14 and extend to the front part of the rod groove 13 in an L-shaped trend, the rear ends of the two first metal soft ropes 16 positioned at the rear side extend to the front part of the rod groove 13 and are fixedly connected with the outer wall of the slide rod 11, when the base rod 6 is converted into a vertical state from a flat state, gravity can enable the balancing weight 15 to fall along the inner cavity 14, then the slide rod 11 is pulled upwards along the rod groove 13 under the action of the two first metal soft ropes 16 positioned at the rear side, simultaneously the two first metal soft ropes 16 positioned at the front side are pulled into the rod groove 13 along with the two first metal soft ropes 16 positioned at the front side, the two first metal soft ropes 16 positioned at the same longitudinal side form a ring shape, so that the device can drive the slide rod 11 to correspondingly slide in repeated vertical and flat states, the four first metal soft ropes 16 are connected with the base rod 6 in a sliding mode, the rear end of the bottom surface of the base rod 6 is fixedly provided with a guide block 17, the guide block 17 is of a hemispherical structure, the opening end of the circular groove 5 is provided with a spiral groove 18, the two side ends of the spiral groove 18 are provided with limiting grooves 19, the limiting grooves 19 are of a linear structure, the states of the spherical lightning rod 4 cannot be influenced by the positions of the guide block 17, the front end and the rear end of the limiting grooves 19 extend to the front end and the rear end of the circular groove 5 respectively, the shrinkage and the lifting of the spherical lightning rod 4 cannot be influenced, the guide block 17 is in sliding fit with the spiral groove 18 and the limiting grooves 19, the spherical lightning rod 4 can rotate under the action of the guide block 17 and the spiral groove 18, the rotation of the spherical lightning rod 4 can promote the second metal soft rope 26 wound on the reel 10 to be released in the lifting process when the spherical lightning rod 4 is used, then make the lightning receiving mechanism 7 can expand, otherwise then can roll second metal rope 26, let the lightning receiving mechanism 7 draw in, the guide slot 20 has been seted up to the spacing groove 19 front end that is located the front side, guide slot 20 is big back small eccentric round platform structure setting, guide slot 20 rear portion axle center position corresponds with guide slot 20 axle center position, guide block 17 can remove to the circular slot 5 outside when spherical lightning rod 4 rises, in order to avoid spherical lightning rod 4 to produce the angle change at this in-process and can't let guide block 17 continue to aim at anterior spacing groove 19, the position of spherical lightning rod 4 can be adjusted by guide block 17 extrusion to the guide slot 20 of eccentric round platform form.
Still further, the lightning receiving mechanism 7 comprises a fixed rod 21, the fixed rod 21 is fixedly connected with the side wall of the spherical lightning rod 4, the fixed rod 21 is arranged in an inclined structure with the outer side end being offset backwards, the rear side of the fixed rod 21 is provided with a plurality of first lightning receiving rods 22 in a linear equidistant structure, the rear side of the first lightning receiving rods 22 is provided with second lightning receiving rods 23, any adjacent first lightning receiving rods 22 and second lightning receiving rods 23 are arranged in a splayed structure, the first lightning receiving rods 22 and the second lightning receiving rods 23 are in a curved cylindrical structure, the two side ends of the second lightning receiving rods 23 are respectively hinged with the end parts of the first lightning receiving rods 22 adjacent to the first lightning receiving rods, the outer side end of the front wall of the fixed rod 21 and the outer side end of the front wall of the first lightning receiving rods 22 are fixedly provided with supporting plates 24, the supporting plates 24 are in a half arc-shaped structure, the inner diameter of the supporting plates 24 is equal to the diameter of the first lightning receiving rods 22 and the diameter of the second lightning receiving rods 23, an extension spring 25 is fixedly arranged between the ends of the first lightning rod 22 and the second lightning rod 23, which are far away from the supporting plate 24, when the base rod 6 is erected, because the spherical lightning rod 4 rotates to pay out the part of the second metal soft rope 26 wound outside the spherical lightning rod, the plurality of second lightning rods 23 and the first lightning rod 22 deflect downwards along the hinged end under the action of gravity, wherein the part of the second lightning rod 23 and the first lightning rod 22 corresponding to the supporting plate 24 can not deflect downwards any more under the action of the supporting plate 24, on the other hand, the extension spring 25 pulls the hinged position of the rest of the second lightning rod 23 and the first lightning rod 22, the extension spring 25 stretches due to the tensile force effect of the second metal soft rope 26 when the lightning receiving mechanism 7 is folded, and at the moment, because the tensile force of the extension spring 25 is larger than the acting force of gravity on the second lightning rod 23 and the first lightning rod 22, therefore, the tension spring 25 can ensure that the corresponding hinge position can not deflect downwards, the effects of the supporting plate 24 and the tension spring 25 are combined, the plurality of second lightning rods 23 and the first lightning rods 22 can form an inverted umbrella-shaped lightning protection net together with the fixed rod 21, the position of the blade 103 can be also covered in the lightning protection range, the blade 103 is protected from lightning stroke damage, the inner side of the front wall of the second lightning rod 23 positioned at the rearmost end is fixedly provided with a second metal soft rope 26, the front end of the second metal soft rope 26 sequentially penetrates through the plurality of first lightning rods 22, the plurality of second lightning rods 23, the plurality of first lightning rods 22 and the plurality of second lightning rods 23, the front end of the second metal soft rope 26 penetrates through the outer wall of the spherical lightning rod 4 to the inside of the cavity 8 and is wound outside the reel 10, the front end of the second metal soft rope 26 is fixedly connected with the side wall of the reel 10 in a connecting mode, and when the upright spherical lightning rod 4 is in a reverse state, the second metal soft rope 26 is connected with the second metal soft rope 26 in a sliding mode, and then the second metal soft rope 26 is connected with the plurality of first lightning rods 23 and the second lightning rods 23 in a sliding mode, and then the second metal soft rope 26 is connected with the first lightning rods 23 in a sliding mode, and then the second metal soft rope 23 is connected with the first lightning rods 23 in a sliding mode.
It should be noted that, the guide assembly 2 includes the fixed ring 27, the fixed ring 27 is fixedly connected with the rear wall of the hub 102 coaxially, the fixed ring 27 is fixedly provided with the guide ring 29 on the rear wall of the fixed ring 27 through the plurality of diagonal rods 28 which are fixedly arranged in the annular equidistant structure, the rear wall of the guide ring 29 is provided with the groove 30 relative to the position between two adjacent blades 103, the groove 30 is in the circular arc structure, the outer wall of the base rod 6 is in extrusion fit with the groove 30, the rear side of the guide ring 29 is provided with the limiting plate 31, the rear wall of the limiting plate 31 is in the U-shaped structure, the bottom surface of the limiting plate 31 is fixedly connected with the top surface of the generator main body 101, the erected base rod 6 can extrude the groove 30, the end points of the groove 30 closest to the center position of the guide ring 29 are equal to the distance between the inner ends of two adjacent blades 103, so that the point closest to the center position of the groove 30 after being extruded by the base rod 6 can rotate to the position of the base rod 6, any one of the blades 103 can not be in a vertical upward state, so that the tip position of the blades 103 is prevented from being perpendicular to each other, and the uppermost blades 103 are greatly reduced, and all the blades 103 are positioned under the sky 3.
It is worth noting that two grounding leads 32 are symmetrically and fixedly arranged on two sides of the limiting plate 31, the grounding leads 32 extend to the lower portion and are flush with the bottom surface of the iron tower rod 1 around the outer walls of two sides of the generator main body 101, the grounding leads 32 guide direct lightning strikes to the ground, the base rod 6 is hinged to the upper portion of the limiting plate 31 through a hinge shaft 33, two turntables 34 are symmetrically and fixedly arranged on two sides of the hinge shaft 33, the turntables 34 are of a quarter cylindrical structure, a fixed shaft 35 is fixedly arranged on the lower end of the outer side wall of the turntables 34, an electric push rod 36 is rotatably connected to the rear portion of the fixed shaft 35, the electric push rod 36 is arranged in a front-high rear-low inclined structure, the rear end of the electric push rod 36 is fixedly connected to the top surface of the generator main body 101, when the electric push rod 36 is in thunder weather, workers only need to operate the electric push rod 36 to extend so that the inclined electric push rod 36 pushes the fixed shaft 35 which is rotatably connected to the electric push shaft, and the fixed shaft 35 is eccentrically fixed to the turntables 34, so that the turntables 34 can be driven to rotate along the hinge shaft 33, when the hinge shaft 33 extends to the maximum, the electric push rod 36 just drives the base rod 6 to vertically stand on the top surface of the generator main body, the electric push rod 36 is vertically to the top surface of the generator main body 101, the electric push rod 37 is vertically to the spherical lightning rod 37 to the lightning rod 37, and the lightning rod is fixedly connected to the lightning rod 4 is fixedly connected to the front of the lightning arrester main body, and the lightning rod 4 is only to the lightning arrester 4 is fixedly connected to the position to the front-proof seat 37.
Working principle: the lower end of the grounding lead 32 is required to be fixed by staff in the process of fixing the iron tower rod 1 according to the grounding standard of the lightning rod, so that the direct lightning received by the lightning protection component 3 and the lightning receiving mechanism 7 in the device can be guided into the ground, then in the daily operation of the wind turbine generator, the lightning protection component 3 and the lightning receiving mechanism 7 are in a folded state and transversely arranged at the rear part of the top surface of the generator main body 101, in the folded state, the base rod 6 and the spherical lightning rod 4 are in a front-high-rear low inclined structure, the position with larger rear end volume of the spherical lightning rod 4 is positioned at the rear of the generator main body 101, the collision of the generator main body 101 is avoided, the position is coincided with the longitudinal position of the generator main body 101 as much as possible, the influence on the flow of high air flow is avoided, and in the case of thunderstorm weather, the worker only needs to operate the electric push rod 36 to extend, so that the inclined electric push rod 36 pushes the fixed shaft 35 which is rotationally connected with the electric push rod 36, and the fixed shaft 35 is eccentrically fixed with the turntable 34, so that the turntable 34 is driven by the fixed shaft to rotate along the hinge shaft 33, the hinge shaft 33 rotates along with the turntable, when the electric push rod 36 extends to the maximum, the turntable 34 just drives the base rod 6 to erect and vertically stand on the top surface of the generator main body 101, the balancing weight 15 in the inner cavity 14 slides downwards due to gravity when the electric push rod 36 is erected, then the first metal soft rope 16 positioned at the rear part is pulled by the balancing weight 15 to pull the sliding rod 11, because the sliding rod 11 is arranged to be of a hollow structure, the hollow cavity 8 which greatly reduces the weight of the spherical lightning rod 4 is formed inside, and all structures in the lightning receiving mechanism 7 are of small and narrow weight, so that the balancing weight 15 can be easily pulled up, and in the lifting process of the spherical lightning rod 4, the spherical lightning rod 4 can rotate through the sliding fit of the spiral groove 18 and the guide block 17, the reel 10 in the cavity 8 can not rotate along with the slide rod 11 in the process, so that the second metal soft rope 26 can be released from the reel 10, then the second metal soft rope 26 does not have the pulling force of the reel 10, so that the plurality of second lightning rods 23 and the first lightning rods 22 can deflect downwards along the hinged end under the action of gravity, wherein part of the second lightning rods 23 and the first lightning rods 22 corresponding to the supporting plate 24 can not deflect downwards under the action of the supporting plate 24, on the other hand, the tension spring 25 can pull the hinging position of the rest of the second lightning rods 23 and the first lightning rods 22, the tension spring 25 is stretched under the pulling force effect of the second metal soft rope 26 when the lightning mechanism 7 is folded, at this moment, because the tension of the tension spring 25 is greater than the acting force of gravity on the second lightning receiving rod 23 and the first lightning receiving rod 22, the tension spring 25 can ensure that the corresponding hinged positions of the tension spring 25 cannot deflect downwards, and the effects of the supporting plate 24 and the tension spring 25 are combined, the plurality of second lightning receiving rods 23 and the first lightning receiving rod 22 form an inverted umbrella-shaped lightning protection net together with the fixed rod 21, the positions of the blades 103 can be included in the lightning protection range, the blades 103 are protected from being damaged by lightning stroke, the guide assembly 2 is further arranged in the device, the hub 102 can rotate while the base rod 6 is erected, all the tip positions of the blades 103 deviate from the sky, the direct lightning of the sky at the end parts of the blades 103 is avoided, the height of the blades 103 positioned at the uppermost end is reduced, the lightning protection assembly 3 can more effectively intercept and accept the direct lightning stroke, after lightning stroke is accepted by the lightning protection component 3, the lightning stroke can enter the limiting plate 31 along the spherical lightning rod 4, the sliding rod 11, the base rod 6 and the hinge shaft 33 and finally is led into the ground from the grounding lead 32, the limiting plate 31 is made of a non-conductive material relative to the position below the grounding lead 32, the shell of the generator main body 101 is also made of a non-conductive material, the design can prevent the lightning stroke from damaging the generator main body 101, and the connecting piece used at the connecting position of the grounding lead 32, the generator main body 101 and the iron tower rod 1 is also non-conductive, so that the damage to the wind turbine generator is also avoided.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; these modifications or substitutions do not depart from the essence of the corresponding technical solutions from the protection scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a wind turbine generator system flabellum lightning protection equipment, includes iron tower pole (1) and sets firmly in generator main part (101) of iron tower pole (1) upper end, generator main part (101) front portion is connected with wheel hub (102), wheel hub (102) outer wall is annular equidistant structure and has set firmly a plurality of blades (103), its characterized in that: the rear side of the hub (102) is connected with a guide assembly (2);
the lightning protection device comprises a generator main body (101), and is characterized in that a lightning protection assembly (3) is arranged on the top surface of the generator main body (101), the lightning protection assembly (3) comprises a spherical lightning rod (4), a round groove (5) is coaxially formed in the front wall of the spherical lightning rod (4), a base rod (6) is connected inside the round groove (5) in a sliding mode, the base rod (6) is rotationally connected with the top surface of the generator main body (101), a plurality of lightning receiving mechanisms (7) are arranged on the outer wall of the spherical lightning rod (4) in an annular equidistant structure, and the lightning receiving mechanisms (7) are used for receiving direct lightning;
the novel lightning rod is characterized in that a cavity (8) is formed in the spherical lightning rod (4), a partition plate (9) is fixedly arranged at the front part of the cavity (8), a reel (10) is rotatably connected to the rear wall of the partition plate (9), a slide bar (11) is fixedly connected to the middle part of the reel (10) coaxially, through holes (12) are formed in the partition plate (9) and the spherical lightning rod (4) at positions opposite to the slide bar (11), a rod groove (13) which is in sliding fit with the slide bar (11) is formed in the base rod (6), the rod groove (13) is of an elliptic cylinder structure, and the upper inner wall and the lower inner wall of the rod groove (13) are in clearance fit with the upper inner wall and the lower inner wall of the slide bar (11);
an inner cavity (14) is formed in the inner wall of the base rod (6) relative to the outer side of the rod groove (13), a balancing weight (15) which is in sliding fit with the inner cavity (14) is arranged in the inner cavity (14), the inner cavity (14) and the balancing weight (15) are of annular structures, two first metal soft ropes (16) are symmetrically and fixedly arranged on the front and rear outer walls of the balancing weight (15), the front ends of the two first metal soft ropes (16) on the front side penetrate through the front wall of the inner cavity (14) and extend to the front part of the rod groove (13) in a U-shaped trend, the front end parts of the two first metal soft ropes (16) on the front side are fixedly connected with the front end of the sliding rod (11), the rear ends of the two first metal soft ropes (16) on the rear side penetrate through the rear wall of the inner cavity (14) and extend to the front part of the rod groove (13) in an L-shaped trend, and the rear ends of the two first metal soft ropes (16) on the rear side extend to the front part of the rod groove (13) and are fixedly connected with the outer wall of the sliding rod (11), and the four first soft ropes (16) are connected with the base rod (6) in a sliding mode;
the guide block (17) is fixedly arranged at the rear end of the bottom surface of the base rod (6), the guide block (17) is of a hemispherical structure, a spiral groove (18) is formed in the opening end of the circular groove (5), limit grooves (19) are formed in the end parts of two sides of the spiral groove (18), the front end and the rear end of each limit groove (19) extend to the front end and the rear end of the circular groove (5) respectively, the guide block (17) is in sliding fit with the spiral groove (18) and the limit grooves (19), a guide groove (20) is formed in the front end of each limit groove (19) on the front side, the guide groove (20) is of an eccentric circular truncated cone structure with a large front part and a small rear part, and the axial position of the rear part of the guide groove (20) corresponds to the axial position of the guide groove (20);
the lightning receiving mechanism (7) comprises a fixing rod (21), the fixing rod (21) is fixedly connected with the side wall of the spherical lightning rod (4), the fixing rod (21) is arranged in an inclined structure with the outer side end being offset backwards, a plurality of first lightning receiving rods (22) are arranged on the rear side of the fixing rod (21) in a linear equidistant structure, second lightning receiving rods (23) are arranged behind the first lightning receiving rods (22), the first lightning receiving rods (22) and the second lightning receiving rods (23) which are adjacent to each other at random are arranged in a splayed structure, the first lightning receiving rods (22) and the second lightning receiving rods (23) are all in a bent cylindrical structure, and two side end parts of the second lightning receiving rods (23) are hinged to the end parts of the first lightning receiving rods (22) which are adjacent to the second lightning receiving rods (23) respectively.
2. The wind turbine blade lightning protection device of claim 1, wherein: the utility model discloses a lightning arrester, including fixed lever (21), first lightning arrester (22), extension spring (25) has been set firmly between the tip that the fixed lever (21) front wall outside end all has set firmly layer board (24) with first lightning arrester (22) front wall outside end, layer board (24) are one half arc plate structure, layer board (24) internal diameter size is equal with first lightning arrester (22) diameter size and second lightning arrester (23) diameter size, first lightning arrester (22) and second lightning arrester (23) keep away from between the tip of layer board (24) one side.
3. The wind turbine blade lightning protection device of claim 2, wherein: the second metal soft rope (26) is fixedly arranged at the inner side of the front wall of the second lightning rod (23) at the rearmost end, the front end of the second metal soft rope (26) sequentially penetrates through the first lightning rods (22) and the second lightning rods (23) and is in sliding connection with the first lightning rods (22) and the second lightning rods (23), the front end of the second metal soft rope (26) penetrates through the outer wall of the spherical lightning rod (4) to extend into the cavity (8) and is wound outside the reel (10), the second metal soft rope (26) is in sliding connection with the spherical lightning rod (4), and the front end of the second metal soft rope (26) is fixedly connected with the side wall of the reel (10).
4. The wind turbine blade lightning protection device of claim 1, wherein: the guide assembly (2) comprises a fixed ring (27), the fixed ring (27) is coaxially and fixedly connected with the rear wall of the hub (102), a plurality of inclined rods (28) which are fixedly arranged on the rear wall of the fixed ring (27) through annular equidistant structures are fixedly arranged on the rear wall of the fixed ring, grooves (30) are formed in the positions, between every two adjacent blades (103), of the rear wall of the guide ring (29), the grooves (30) are of circular arc structures, the outer wall of the base rod (6) is in extrusion fit with the grooves (30), limiting plates (31) are arranged on the rear side of the guide ring (29), the rear wall of each limiting plate (31) is of a U-shaped structure, and the bottom surface of each limiting plate (31) is fixedly connected with the top surface of the generator main body (101).
5. The wind turbine blade lightning protection device according to claim 4, wherein: two ground lead wires (32) have been set firmly to limiting plate (31) bilateral symmetry, ground lead wires (32) walk around generator main part (101) both sides outer wall and extend to the lower part and with iron tower pole (1) bottom surface parallel and level, ground lead wires (32) are with direct lightning guide to ground, basic pole (6) are articulated with limiting plate (31) upper portion through articulated shaft (33), two carousel (34) have been set firmly to articulated shaft (33) bilateral symmetry, carousel (34) are quarter cylinder structure, carousel (34) lateral wall lower extreme sets firmly fixed axle (35), fixed axle (35) rear portion rotation is connected with electric putter (36), electric putter (36) are the slope structure setting of high back in front, electric putter (36) rear end is fixed with generator main part (101) top surface connection, limiting plate (31) rear still is equipped with fixing base (37), spherical lightning rod (4) front end and inside grafting cooperation of fixing base (37).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211629413.7A CN115788801B (en) | 2022-12-19 | 2022-12-19 | Wind turbine blade lightning protection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211629413.7A CN115788801B (en) | 2022-12-19 | 2022-12-19 | Wind turbine blade lightning protection equipment |
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| CN115788801B true CN115788801B (en) | 2023-08-18 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994025752A1 (en) * | 1993-05-05 | 1994-11-10 | Autoflug Energietechnik Gmbh + Co. | Wind turbine with protection against lightning |
| JP2002227757A (en) * | 2001-02-02 | 2002-08-14 | Chuo Bourai Kk | Lightning arrester equipment for gfrp type wind turbine |
| JP2007138765A (en) * | 2005-11-16 | 2007-06-07 | Shoden Corp | Wind turbine generator |
| CN102287338A (en) * | 2010-06-18 | 2011-12-21 | 新疆金风科技股份有限公司 | Lightning protection system, component and wind energy power generator blade with lightning protection system |
| CN102691630A (en) * | 2011-03-22 | 2012-09-26 | 远景能源（丹麦）有限公司 | A wind turbine blade |
| CN108223306A (en) * | 2017-12-29 | 2018-06-29 | 中国电力科学研究院有限公司 | A kind of outer lightning protection for being overlying on wind power generation unit blade surface connects sudden strain of a muscle device |
| CN112594127A (en) * | 2020-12-31 | 2021-04-02 | 华能国际电力开发公司吉林通榆风电分公司 | Lightning protection blade of wind turbine generator system |
| CN113417814A (en) * | 2021-08-06 | 2021-09-21 | 中国华能集团清洁能源技术研究院有限公司 | Lightning protection equipment and wind generating set |
-
2022
- 2022-12-19 CN CN202211629413.7A patent/CN115788801B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994025752A1 (en) * | 1993-05-05 | 1994-11-10 | Autoflug Energietechnik Gmbh + Co. | Wind turbine with protection against lightning |
| JP2002227757A (en) * | 2001-02-02 | 2002-08-14 | Chuo Bourai Kk | Lightning arrester equipment for gfrp type wind turbine |
| JP2007138765A (en) * | 2005-11-16 | 2007-06-07 | Shoden Corp | Wind turbine generator |
| CN102287338A (en) * | 2010-06-18 | 2011-12-21 | 新疆金风科技股份有限公司 | Lightning protection system, component and wind energy power generator blade with lightning protection system |
| CN102691630A (en) * | 2011-03-22 | 2012-09-26 | 远景能源（丹麦）有限公司 | A wind turbine blade |
| CN108223306A (en) * | 2017-12-29 | 2018-06-29 | 中国电力科学研究院有限公司 | A kind of outer lightning protection for being overlying on wind power generation unit blade surface connects sudden strain of a muscle device |
| CN112594127A (en) * | 2020-12-31 | 2021-04-02 | 华能国际电力开发公司吉林通榆风电分公司 | Lightning protection blade of wind turbine generator system |
| CN113417814A (en) * | 2021-08-06 | 2021-09-21 | 中国华能集团清洁能源技术研究院有限公司 | Lightning protection equipment and wind generating set |
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| CN115788801A (en) | 2023-03-14 |
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