CN218717277U

CN218717277U - Wind-powered electricity generation blade lightning protection structure

Info

Publication number: CN218717277U
Application number: CN202222472521.XU
Authority: CN
Inventors: 许旨意; 马超
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-03-24
Anticipated expiration: 2032-09-19

Abstract

The utility model provides a wind-powered electricity generation blade lightning protection structure. Wind-powered electricity generation blade lightning protection structure includes: a generator and a connector; the ring is established to the cover, the cover is established the ring cover and is established the outside of connector pivot, the outside fixedly connected with movable frame of ring is established to the cover, the activity groove has been seted up to the inside of activity frame, the inside swing joint of activity groove has the regulation pole, the top fixedly connected with arc of adjusting the pole. The utility model provides a wind-powered electricity generation blade lightning protection structure establishes the ring through a side-mounting cover in fixed frame to locate the external mounting movable frame that the ring was established to the cover, and adjust the pole in the inside swing joint of movable frame, simultaneously in the connecting block installation arrester of adjusting the top of pole through the arc installation, thereby make the position of arrester be fixed in flabellum pivoted position's highest point, make the blade when lasting rotatory, the arrester validity is not influenced, thereby very big improvement the safety in utilization and the life of flabellum.

Description

Wind-powered electricity generation blade lightning protection structure

Technical Field

The utility model relates to a wind-powered electricity generation blade field especially relates to a wind-powered electricity generation blade lightning protection structure.

Background

The wind power generator is an electric power device which converts wind energy into mechanical work, the mechanical work drives a rotor to rotate, and finally outputs alternating current.

Lightning strikes, which are the most important cause of the accidental shutdown of wind turbines, not only cause power losses in the form of several megawatts, but also cause significant operating and maintenance costs, are particularly vulnerable to lightning strikes, which can cause severe damage, almost directly or indirectly, to all the components of the wind turbine, including the blades, the control system and other electronic components, since they have large rotating blades and are exposed to the elements for a long time, and thus it is necessary to provide a lightning protection structure to avoid direct damage to the equipment by lightning.

The lightning protection structure of current adopts the arrester more, and because the flabellum is different with static building, and wind turbine generator system is in the operation in-process, and the blade can continuously rotate, and this can cause showing the influence to the validity of connecing the sudden strain of a muscle.

Therefore, it is necessary to provide a lightning protection structure for a wind turbine blade to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wind-powered electricity generation blade lightning protection structure has solved the not enough problem of arrester validity on the rotating fan blade.

In order to solve the technical problem, the utility model provides a wind-powered electricity generation blade lightning protection structure includes: a generator and a connector;

the sleeve ring is sleeved outside the connecting head rotating shaft, a movable frame is fixedly connected to the outside of the sleeve ring, a movable groove is formed in the movable frame, an adjusting rod is movably connected to the inside of the movable groove, an arc-shaped plate is fixedly connected to the top end of the adjusting rod, and a lightning receptor is installed at the top of the arc-shaped plate through a connecting block;

the communicating groove is formed in the back face of the movable frame;

the two positioning frames are fixedly connected to the back of the movable frame;

a plurality of fixed orificess, it is a plurality of the fixed orifices is all seted up in the inside of adjusting the pole, and is a plurality of the inside of fixed orifices is provided with three hole screws, the length of adjusting lever and the length phase-match of movable frame, the arrester is current device.

Preferably, two sides of the two positioning frames, which are away from each other, are provided with nut grooves, screw grooves are formed in the nut grooves, a plurality of clamping blocks are arranged in the screw grooves, and the positions of the clamping blocks correspond to the positions of the fixing holes.

Preferably, the cover is established a plurality of butt joint poles of one side fixedly connected with of ring, and is a plurality of connect the solid fixed ring of the equal fixedly connected with in one end of pole, gu fixed ring's opposite side passes through screw fixed connection with one side of fixed frame.

Preferably, one side fixedly connected with of generator is fixed frame, the pivot fixed connection of the one end of generator output shaft and connector.

Preferably, a connecting cylinder is installed on one side of the movable frame and used for connecting a conducting circuit of the fan blade through a circuit.

Preferably, three fan blades are mounted outside the connector.

Preferably, it is three the holding tank has all been seted up to the inside of flabellum, the heating groove has been seted up to the inside of holding tank, fixedly connected with locating lever between the top of heating inslot wall and the bottom, the outside of locating lever is provided with the heater strip, the heater strip is the winding setting of screw thread form for heat work to the flabellum.

Compared with the prior art, the utility model provides a wind-powered electricity generation blade lightning protection structure has following beneficial effect:

the utility model provides a wind-powered electricity generation blade lightning protection structure establishes the ring through a side-mounting cover in fixed frame to locate the cover and establish the externally mounted movable frame of ring, and adjust the pole in the inside swing joint of movable frame, simultaneously in the connecting block installation arrester of arc installation is passed through at the top of adjusting the pole, thereby make the position of arrester be fixed in the highest point of flabellum pivoted position, make the blade when lasting rotatory, the arrester validity is not influenced, thereby very big improvement the safety in utilization and the life of flabellum.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a wind turbine blade lightning protection structure provided by the present invention;

fig. 2 is a schematic structural view of the sleeving ring provided by the present invention;

fig. 3 is a schematic structural view of a three-hole screw provided by the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

FIG. 5 is an enlarged view of a portion of FIG. 1 at B;

FIG. 6 is an enlarged view of a portion of FIG. 2 at C;

fig. 7 is a schematic structural diagram of a second embodiment of the wind turbine blade lightning protection structure provided by the present invention.

Reference numbers in the figures: 1. arc, 2, adjust the pole, 3, the activity groove, 4, the generator, 5, the movable frame, 6, the connector, 7, the flabellum, 8, fixed frame, 9, the locating frame, 10, the connecting rod, 11, the fixed orifices, 12, the intercommunication groove, 13, the cover ring of establishing, 14, the holding tank, 15, the heater strip, 16, the locating lever, 17, the heating tank, 18, the arrester, 19, the connecting block, 20, the connecting cylinder, 21, the butt joint pole, 22, solid fixed ring, 23, the nut groove, 24, the screw rod groove, 25, three hole screws.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

First embodiment

Please refer to fig. 1-6, wherein fig. 1 is a schematic structural diagram of a first embodiment of a wind turbine blade lightning protection structure according to the present invention; fig. 2 is a schematic structural view of the sleeving ring provided by the present invention; fig. 3 is a schematic structural view of a three-hole screw provided by the present invention; FIG. 4 is an enlarged view of a portion of FIG. 1 at A; FIG. 5 is an enlarged view of a portion of FIG. 1 at B; fig. 6 is a partially enlarged view of C in fig. 2. Wind-powered electricity generation blade lightning protection structure includes: a generator 4 and a connector 6;

the telescopic type lightning arrester comprises a sleeving ring 13, wherein the sleeving ring 13 is sleeved outside a rotating shaft of a connector 6, a movable frame 5 is fixedly connected to the outside of the sleeving ring 13, a movable groove 3 is formed in the movable frame 5, an adjusting rod 2 is movably connected to the inside of the movable groove 3, an arc-shaped plate 1 is fixedly connected to the top end of the adjusting rod 2, and a lightning arrester 18 is installed at the top of the arc-shaped plate 1 through a connecting block 19;

a communicating groove 12, wherein the communicating groove 12 is arranged on the back surface of the movable frame 5;

the two positioning frames 9 are both fixedly connected to the back of the movable frame 5;

a plurality of fixed orificess 11, it is a plurality of the inside of adjusting pole 2 is all seted up in fixed orificess 11, and is a plurality of the inside of fixed orificess 11 is provided with three hole screws 25, the length of adjusting pole 2 matches with the length of movable frame 5, lightning arrester 18 is current device, two the locating frame 9 is located the both sides of intercommunication groove 12 respectively.

Two sides of the two positioning frames 9, which are away from each other, are provided with nut grooves 23, screw grooves 24 are formed in the nut grooves 23, a plurality of clamping blocks are arranged in the screw grooves 24, and the positions of the clamping blocks correspond to the positions of the fixing holes 11.

A plurality of butt joint poles 21 of one side fixedly connected with of ring 13 are established to the cover, and is a plurality of connect the solid fixed ring 22 of the equal fixedly connected with of one end of pole 21, screw fixed connection is passed through with one side of fixed frame 8 to the opposite side of solid fixed ring 22 for the rotation of ring 13 is established to the fixed restriction cover.

One side fixedly connected with of generator 4 fixes frame 8, the one end of generator 4 output shaft and the pivot fixed connection of connector 6.

A connecting cylinder 20 is installed on one side of the movable frame 5, and the connecting cylinder 20 is used for connecting the conducting circuit of the fan blade 7 through a circuit.

Three fan blades 7 are arranged outside the connector 6.

The utility model provides a wind-powered electricity generation blade lightning protection structure's theory of operation as follows:

when installing, in the outside of the 6 backs of connector and the pivot of flabellum 7, ring 13 is established to the installation cover, and one side of fixed frame 8 through solid fixed ring 22 and fix with screw, later adjust the position of connecting rod 10 according to flabellum 7 pivoted maximum diameter, through taking off behind the screw of nut groove 23 inside, adjust the height of connecting rod 10, adjust the completion back, insert the inside of fixed orifices 11 through three hole screws 25, and fix through the screw in locating frame 9 inside, thereby make arc 1 be located flabellum 7 pivoted maximum radian department.

the ring 13 is established through the side-mounting cover of fixing frame 8, and establish the movable frame 5 of the externally mounted of ring 13 in the cover, and adjust pole 2 in the inside swing joint of movable frame 5, the lightning arrester 18 is installed through connecting block 19 of arc 1 installation at the top of adjusting pole 2 simultaneously, thereby make the position of lightning arrester 18 be fixed in the highest point of flabellum pivoted position, make the blade when lasting rotatory, the lightning arresting validity is not influenced, thereby very big improvement the safety in utilization and the life of flabellum.

Second embodiment

Referring to fig. 7, based on the wind turbine blade lightning protection structure provided in the first embodiment of the present application, a second embodiment of the present application provides another wind turbine blade lightning protection structure. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

Specifically, the wind-powered electricity generation blade lightning protection structure that the second embodiment of this application provided's difference lies in, and is three holding tank 14 has all been seted up to the inside of flabellum 7, heating tank 17 has been seted up to holding tank 14's inside, fixedly connected with locating lever 16 between the top of heating tank 17 inner wall and the bottom, the outside of locating lever 16 is provided with heater strip 15, heater strip 15 is the setting of screw thread form winding for heat work is carried out to flabellum 7.

the heating groove 17 is formed in the accommodating groove 14 formed in the fan blade 7, and the heating wire 15 and the positioning rod 16 are arranged in the heating groove 17, so that the heating wire 15 is wound outside the positioning rod 16 in a threaded manner, and therefore when the fan blade freezes in winter, the fan blade can be effectively deiced and prevented from freezing, and stable operation is guaranteed.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a wind-powered electricity generation blade lightning protection structure which characterized in that includes: a generator (4) and a connector (6);

the connecting device comprises a sleeving ring (13), wherein the sleeving ring (13) is sleeved outside a rotating shaft of a connector (6), the sleeving ring (13) is fixedly connected with a movable frame (5) on the outer portion, a movable groove (3) is formed in the movable frame (5), an adjusting rod (2) is movably connected in the movable groove (3), the top end of the adjusting rod (2) is fixedly connected with an arc-shaped plate (1), and a lightning receptor (18) is installed at the top of the arc-shaped plate (1) through a connecting block (19);

the communicating groove (12), the said communicating groove (12) is opened on the back of the movable frame (5);

the two positioning frames (9), the two positioning frames (9) are both fixedly connected to the back of the movable frame (5);

a plurality of fixed orifices (11), it is a plurality of fixed orifices (11) are all seted up in the inside of adjusting pole (2), and are a plurality of the inside of fixed orifices (11) is provided with three hole screws (25).

2. The wind power blade lightning protection structure according to claim 1, wherein two sides of the two positioning frames (9) away from each other are provided with nut grooves (23), and screw grooves (24) are formed inside the nut grooves (23).

3. The wind turbine blade lightning protection structure according to claim 1, wherein one side of the sleeved ring (13) is fixedly connected with a plurality of butt-joint rods (21), and one end of each of the plurality of butt-joint rods (21) is fixedly connected with a fixing ring (22).

4. The wind turbine blade lightning protection structure according to claim 1, wherein a fixing frame (8) is fixedly connected to one side of the generator (4), and one end of an output shaft of the generator (4) is fixedly connected to a rotating shaft of the connector (6).

5. The wind turbine blade lightning protection structure according to claim 1, wherein a connecting cylinder (20) is installed on one side of the movable frame (5).

6. The wind turbine blade lightning protection structure according to claim 1, wherein three blades (7) are mounted outside the connector (6).

7. The wind power blade lightning protection structure according to claim 6, wherein an accommodating groove (14) is formed in each of the three fan blades (7), a heating groove (17) is formed in each accommodating groove (14), a positioning rod (16) is fixedly connected between the top and the bottom of the inner wall of each heating groove (17), and a heating wire (15) is arranged outside each positioning rod (16).