CN210290004U - Wind turbine, compressor and generator - Google Patents

Abstract

The utility model discloses a wind turbine, compressor and generator. The wind turbine comprises a housing and a rotor arranged in a cavity of the housing, wherein two axial ends of the rotor are rotatably connected to the housing, and at least one axial end of the rotor penetrates through and extends out of the housing; a plurality of rotor blades are sequentially arranged on the peripheral surface of the rotor along the circumferential direction; the side surface of the housing is provided with a wind guide opening, the wind guide opening is provided with a guide vane so that wind is blown to the rotor through the guide of the guide vane, and the guide vane is fixed on the housing and the angle fixed on the housing is adjustable. Compare in prior art's trefoil wind turbine, because the rotor setting is inside the housing, can not rotate the birds of in-process injury flight, and the housing can play certain effect of making an uproar of falling. The angle of the guide vane fixed on the housing is adjustable, so that the installation angle of the guide vane on the housing can be adjusted according to the wind size, and the wind turbine has higher environmental adaptability.

Description

Wind turbine, compressor and generator

Technical Field

The utility model relates to an electrical apparatus technical field, in particular to wind turbine, compressor and generator.

Background

At present, a typical wind turbine is a three-blade wind turbine, and the blades are exposed, and wind blows the blades to rotate so as to convert wind energy into kinetic energy. However, since the blades are exposed to the outside, birds in flight may be injured, and the space between adjacent wind turbines needs to be set to a large value due to turbulence generated by the rotation of the blades.

Therefore, how to avoid injuring birds and reduce the limitation on the distance arrangement between adjacent wind turbines is a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a wind turbine, which can avoid injuring birds and reduce the limitation on the distance setting between adjacent wind turbines. Another object of the present invention is to provide a compressor and a generator comprising the above wind turbine.

In order to achieve the above object, the utility model provides a following technical scheme:

a wind turbine comprises a housing and a rotor arranged in a cavity of the housing, wherein two ends of the rotor in the axial direction are rotatably connected with the housing, and at least one axial end of the rotor penetrates through the housing and extends out of the housing; a plurality of rotor blades are sequentially arranged on the peripheral surface of the rotor along the circumferential direction; the wind guide device is characterized in that a wind guide opening is formed in the side face of the housing, a guide vane is arranged at the wind guide opening to enable wind to be blown to the rotor through the guide of the guide vane, and the guide vane is fixed to the housing and the angle fixed to the housing is adjustable.

Preferably, all the guide vanes are connected to a linkage mechanism, so that the angle at which all the guide vanes are fixed to the housing is adjusted through the linkage mechanism.

Preferably, the linkage mechanism is connected to a driving mechanism controlled by an electric signal to adjust the angle of the guide vane.

Preferably, the device further comprises a rotation speed detection device connected to the rotor, the rotation speed detection device is electrically connected to an input end of a controller, and an output end of the controller is electrically connected to an input end of the driving mechanism.

Preferably, the linkage mechanism comprises a linkage rod and a control ring which are arranged in the housing, the control ring is rotationally connected to the housing, and the driving mechanism is connected to the control ring to drive the control ring to rotate; the linkage rods are arranged in one-to-one correspondence with the guide vanes, one ends of the guide vanes are hinged to the housing, one ends of the linkage rods are hinged to the control ring, and the other ends of the linkage rods are hinged to the middle parts of the guide vanes.

Preferably, the driving mechanism is a linear driver, a fixed end of the linear driver is hinged to the cover shell, and an output end of the linear driver is hinged to the control ring.

Preferably, a guide plate corresponding to the guide vanes is further fixed in the housing, the guide plate includes a plurality of first guide plates which are sequentially arranged along the circumferential direction with the rotor as the center, each first guide plate extends to a virtual circumferential surface where the radial outer end of each rotor vane is located from a position close to the corresponding radial inner end of each guide vane, a guide passage is formed between the circumferentially adjacent first guide plates, and the circumferential length of the guide passage is gradually reduced along the direction from each guide vane to the rotor.

Preferably, the air guide plate further comprises a second air guide plate arranged between two circumferentially adjacent first air guide plates, and the second air guide plate is used for shunting at the radial outer port of the air guide channel.

A compressor comprising a wind turbine according to any of the preceding claims; the outer side of the housing is provided with a rotating main shaft which is fixed at one end of the rotor, which extends out of the housing, the rotating main shaft is connected with the input end of a gearbox, and the output end of the gearbox is connected with the input end of the compressor body.

A generator comprising a wind turbine as claimed in any one of the preceding claims; the outer side of the housing is provided with a rotating main shaft which is fixed at one end of the rotor, which extends out of the housing, the rotating main shaft is connected with the input end of a gearbox, and the output end of the gearbox is connected with the input end of the generator body.

The utility model provides a wind turbine, which comprises a housing and a rotor arranged in the cavity of the housing, wherein both ends of the rotor in the axial direction are rotationally connected with the housing, and at least one axial end part of the rotor penetrates through and extends out of the housing; a plurality of rotor blades are sequentially arranged on the peripheral surface of the rotor along the circumferential direction; the side surface of the housing is provided with a wind guide opening, the wind guide opening is provided with a guide vane so that wind is blown to the rotor through the guide of the guide vane, and the guide vane is fixed on the housing and the angle fixed on the housing is adjustable.

Outside wind enters the housing through the guide of the guide vanes and blows to the rotor blades to drive the rotor to rotate, and the wind energy is converted into mechanical energy through the rotor. Compare in prior art's trefoil wind turbine, because the rotor setting is inside the housing, can not be at the birds that rotate in-process injury flight, and the housing can play certain effect of making an uproar of falling, in addition, because the effect of blockking of housing, the vortex that produces between the rotor is less among the different wind turbines, and is less to setting up the restriction of distance between the different wind turbines, and the operation security is higher. The angle of the guide vane fixed on the housing is adjustable, so that the installation angle of the guide vane on the housing can be adjusted according to the wind size, and the wind turbine has higher environmental adaptability.

The utility model discloses still provide compressor and the generator including above-mentioned wind turbine.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a first internal structural view of a wind turbine provided by the present invention;

fig. 2 is a second internal structural view of a wind turbine provided by the present invention;

FIG. 3 is a block diagram of a generator according to the present invention;

fig. 4 is a structural diagram of the compressor provided by the present invention.

In fig. 1 to 4:

1-a wind turbine, 11-guide vanes, 12-linkage rods, 13-a fixed ring, 14-a driving mechanism, 15-a rotor, 16-a first guide plate, 17-a housing, 18-a wind guide port, 19-a control ring, 110-a second guide plate, 111-a wind guide channel, 112-rotor vanes, 113-a positioning ring, 114-rollers, 2-a rotating main shaft, 3-a gearbox, 4-a generator body and 5-a compressor body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a wind turbine, can avoid injury birds, reduce the restriction to adjacent wind turbine interval setting. Another core of the present invention is to provide a compressor and a generator comprising the above wind turbine.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The axial direction, the circumferential direction, and the radial direction are based on the rotation center line of the rotor.

In one embodiment of the wind turbine provided by the present invention, referring to fig. 1 and 2, the wind turbine includes a housing 17 and a rotor 15 disposed in a cavity of the housing 17.

Both ends of the rotor 15 in the axial direction are rotatably connected to the housing 17, and at least one axial end of the rotor 15 penetrates and extends out of the housing 17, and the extending portion is used for connecting other components to output the kinetic energy generated by the wind turbine. A plurality of rotor blades 112 are sequentially provided on the outer circumferential surface of the rotor 15 in the circumferential direction. The airflow entering the shroud 17 is sufficient to act on the rotor blades 112 to rotate the rotor 15, increasing the efficiency of the wind turbine.

The lateral surface of the housing 17 is provided with an air guide opening 18, the air guide opening 18 is provided with a guide vane 11 so that the air is guided by the guide vane 11 to blow to the rotor 15, and the guide vane 11 is fixed on the housing 17 and the angle fixed on the housing 17 is adjustable.

The guide vanes 11 and the rotor blades 112 have the same inclination direction, and no matter the airflow comes from any direction on four sides, the torque action of the guide vanes on the rotor 15 is the same direction, and devices such as yawing and variable pitch are not needed, so that the whole structure is simple, the control is simple, and the failure rate is low.

At the same time, the wind inlets 18 are usually not all at the same time, a part of the wind inlets 18 are used for supplying wind and blowing the wind to the rotor 15, and after blowing the rotor 15, the wind can flow out of the enclosure 17 through the other part of the wind inlets 18, for example, in the orientation shown in fig. 2, the wind blows into the enclosure 17 from the wind inlet 18 on the left side and flows out of the enclosure 17 from the wind inlet 18 on the right side.

External wind is guided by the guide vanes 11, enters the interior of the housing 17, and is blown to the rotor blades 112 to rotate the rotor 15, so that the wind energy is converted into mechanical energy by the rotor 15. Compared with a three-blade wind turbine in the prior art, the rotor 15 is arranged inside the housing 17, birds flying in the rotating process cannot be injured, the housing 17 can play a certain noise reduction role, in addition, due to the blocking effect of the housing 17, turbulence generated between the rotors 15 in different wind turbines is small, the limitation on the distance between different wind turbines is small, and the operation safety is high. Because the angle of the guide vane 11 fixed on the housing 17 is adjustable, the installation angle of the guide vane 11 on the housing 17 can be adjusted according to the wind size, so that the wind turbine has higher environmental adaptability.

Further, all the guide vanes 11 are connected to the linkage mechanism, so as to adjust the angle at which all the guide vanes 11 are fixed to the housing 17 through the linkage mechanism. The synchronous adjustment of the angle of the guide vane 11 can be realized through the linkage mechanism, and the operation is convenient.

Of course, in other embodiments, the guide vanes 11 may be individually adjusted in angle.

Further, the linkage mechanism is connected to the driving mechanism 14, and the driving mechanism 14 can be specifically controlled by an electric signal to adjust the angle of the guide vane 11. Specifically, the driving mechanism 14 may be a motor, a hydraulic cylinder, an electromagnet, or the like, which is capable of being controlled by an electric signal. By the arrangement of the driving mechanism 14, the degree of automation of the control of the guide vanes 11 may be improved, and the adjustment of the angle of the guide vanes 11 may be performed during use of the wind turbine.

Further, the wind turbine comprises a rotation speed detection device connected to the rotor 15, the rotation speed detection device being electrically connected to an input of the controller, an output of the controller being electrically connected to an input of the driving mechanism 14. Wherein, in particular, the rotation speed detection means may be an encoder connected to the rotor 15.

Based on the setting of controller, rotational speed detection device and link gear, can realize the automatic control of guide vane 11 angle. The controller can control the linkage mechanism to move according to the result of the wind speed detection by the rotating speed detection device, and the opening angle of the guide vane 11 is increased when the incoming wind speed is small; when the incoming flow speed is high, the opening angle of the guide vane 11 is reduced, so that the air quantity entering the wind turbine is adjusted, and the wind turbine has relatively stable rotating speed and power output under different wind speeds.

Further, referring to fig. 2, the linkage mechanism includes a linkage rod 12 and a control ring 19 disposed in a housing 17, the control ring 19 is rotatably connected to the housing 17, and the driving mechanism 14 is connected to the control ring 19 to drive the control ring 19 to rotate. The linkage rods 12 are arranged in one-to-one correspondence with the guide vanes 11, one ends of the guide vanes 11 are hinged to the housing 17, one ends of the linkage rods 12 are hinged to the control ring 19, and the other ends of the linkage rods are hinged to the middle parts of the guide vanes 11.

Specifically, a fixed ring 13 and a positioning ring 113 are further fixedly arranged in the housing 17, and the radial inner end of the guide vane 11 is hinged to the fixed ring 13, so as to realize the hinge connection between the guide vane and the housing. The positioning ring 113, the control ring 19 and the fixed ring 13 are sequentially sleeved outwards along the radial direction, and rollers 114 are arranged between the fixed ring 13 and the control ring 19 and between the positioning ring 113 and the control ring 19 to reduce friction, and optionally, the rollers are bearings. More specifically, the rotor 15, the positioning ring, the control ring 19 and the fixing ring 13 may be sequentially sleeved.

When the driving mechanism 14 drives the control ring 19 to rotate, the linkage rod 12 swings and pulls the middle part of the guide vane 11, so that the guide vane 11 swings around the connection point of the guide vane 11 and the fixed ring 13, and after the control ring 19 stops rotating, the installation angle of the guide vane 11 on the housing 17 is fixed, thereby adjusting the angle of the guide vane 11 fixed on the housing 17.

The wind speed fluctuation can cause the change of the rotating speed of the rotor 15, when the rotating speed detection device detects the change of the rotating speed of the rotor 15, the controller controls the rotation angle of the control ring 19 through the driving mechanism 14 to drive the linked linkage rod 12 to pull the guide vanes 11 to change the angle, so that the air intake of the wind turbine is changed, the rotating speed of the rotor 15 is changed, the wind turbine can operate at low wind speed and in windy weather, the operation time is relatively long, and the wind energy utilization rate is improved.

Further, the drive mechanism 14 is a linear drive, such as a linear motor, an electric motor impeller. The fixed end of the linear actuator is hinged to the housing 17 and the output end is hinged to the control ring 19. That is to say, the driving mechanism 14 realizes the rotation control of the control ring 19 through linear extension, when in installation, only the fixed end and the extension end in the linear driver are respectively fixed on a mounting point on the housing 17 and a mounting point on the control ring 19, so that the assembly is convenient, and the space saving is facilitated.

Of course, in other embodiments, the driving mechanism 14 may also be a rotary motor connected between the control ring 19 and the housing 17.

Of course, in other embodiments, the linkage mechanism may also be configured as a linear motor respectively connected to the guide vanes 11, the linear motors are all connected to the same controller, and the controller can simultaneously control the linear motors corresponding to all the guide vanes 11 to move, so as to simultaneously adjust the angles of the guide vanes 11.

Further, referring to fig. 2, a guide plate corresponding to the guide vanes 11 is further fixed in the housing 17, the guide plate includes a plurality of first guide plates 16 sequentially arranged along the circumferential direction with the rotor 15 as the center, each first guide plate 16 extends from a position close to the radial inner end of the corresponding guide vane 11 to a virtual circumferential surface where the radial outer end of the rotor vane 112 is located, a guide passage 111 is formed between circumferentially adjacent first guide plates 16, and the circumferential length of the guide passage 111 is gradually reduced along the direction from the guide vane 11 to the rotor 15.

In the radial direction, a side close to the rotation center line of the rotor 15 is a radially inner side, and a direction away from the rotation center line is a radially outer side. The first air deflector 16 serves to further guide the wind introduced by the air deflector 11 in the housing 17. The radial outer end of the first guide plate 16 is disposed at a position close to the radial inner end of the corresponding guide vane 11, and specifically, the radial outer end of the first guide plate 16 should not affect the adjustment of the installation angle of the guide vane 11. Since the rotor 15 is rotating, the position of the radially outer end of the rotor blade 112 is not fixed, and when the rotor 15 rotates, the radially outer end of the rotor blade 112 moves on a virtual circumferential surface, which is the virtual circumferential surface where the radially outer end of the rotor blade 112 is located.

For the wind blowing to the rotor 15, because the area of the air inlet of the wind guide channel 111 is larger than the area of the air outlet of the rotor 15, the wind can be accelerated because the flow area of the wind guide channel 111 is continuously reduced, the accelerated airflow pushes the rotor 15 to reach a higher rotating speed, the wind turbine can be driven when the incoming wind speed is lower through acceleration, the starting wind speed of the wind turbine can be reduced, and the wind turbine has higher energy conversion efficiency.

Further, the air guide plate further comprises a second air guide plate 110 arranged between two circumferentially adjacent first air guide plates 16, and the second air guide plate 110 is used for dividing the air flow at the radial outer port of the air guide channel 111.

Specifically, the number of the rotor blades 112 is the same as that of the first guide plates 16, the number of the guide blades 11 is twice as large as that of the rotor blades 112, one first guide plate 16 is correspondingly arranged every other guide blade 11, and one second guide plate 110 is arranged between two adjacent first guide plates 16. As shown in fig. 2, the second baffle 110 has a length less than the length of the first baffle 16,

because the radial outer end wind gap area in wind-guiding wind channel is great relatively, shunts here through second guide plate 110, makes wind can get into in the wind-guiding wind channel more in order.

In addition to the wind turbine, the present invention further provides a compressor, please refer to fig. 4, the compressor includes a wind turbine, and specifically, the wind turbine may be provided in any of the above embodiments, and the above embodiments may be referred to correspondingly for advantageous effects. Specifically, in the compressor, a rotating main shaft 2 fixed at one end of a rotor, which extends out of a housing 17, is arranged on the outer side of the housing 17 of the wind turbine, the rotating main shaft 2 is connected with an input end of a gearbox 3, an output end of the gearbox 3 is connected with an input end of a compressor body 5, the rotor 15 is driven by the rotating main shaft 2, is accelerated by the gearbox 3, directly drives the compressor body 5 to perform high-low pressure conversion of media, and the high-pressure media are directly supplied to a user. In addition, at least two wind turbines in series may be provided in the compressor to power the gearbox 3.

The compressor is a mode that a vertical shaft type wind turbine directly drives the compressor body 5 to produce compressed air, and compared with a mode that a fan generates electricity and then drives the compressor body 5 electrically, the compressor is higher in efficiency, high in safety and low in noise; the compressor can be installed on the roof, and high-pressure gas generated by the compressor body 5 is driven by wind power to be directly supplied to users; the wind energy is utilized in a distributed manner, so that the utilization rate of the wind energy is high, and the use is more flexible. In addition, because the angle of the guide vane 11 can be changed, the compressor body 5 can keep normal working rotating speed under the condition of large wind speed fluctuation, in addition, the working rotating speed of the compressor body 5 has a certain range, and the compressor body 5 with a large rotating speed range is preferably selected for the compressor body 5 to carry out load matching so as to adapt to the fluctuation of the output power of the wind turbine.

In addition to the above wind turbine and the compressor, please refer to fig. 3, the present invention further provides a generator, which includes a wind turbine, specifically, the wind turbine provided in any of the above embodiments, and the above embodiments can be referred to for the advantages. Specifically, in the generator, a rotating main shaft 2 fixed at one end of a rotor extending out of a housing 17 is arranged on the outer side of the housing 17 of the wind turbine, the rotating main shaft 2 is connected with an input end of a gearbox 3, and an output end of the gearbox 3 is connected with an input end of a generator body 4. In addition, at least two wind turbines in series may be provided in the engine to power the gearbox 3.

The guide vanes 11 guide incoming wind from four sides to enter the wind turbine to drive the rotor 15 to rotate, the rotor 15 is driven by the rotating main shaft 2 and is accelerated by the gearbox 3 to directly drive the generator body 4 to output electric energy, and the electric energy is directly supplied to users.

Compared with the traditional wind driven generator, the generator does not need devices such as yawing and variable pitch, and has simple integral structure, simple control and low failure rate; the adopted wind turbine has the acceleration effect and can realize breeze starting, so that electricity can be generated at low wind speed; the rotating speed of the generator body 4 can be kept relatively stable when the wind speed fluctuates by controlling the angle of the guide vane 11 of the wind turbine, and the output power quality is higher; the safety is high, the wind turbine rotor 15 is inside, the noise is low, and the influence on the surrounding environment is small. The generator body 4 can be arranged at the bottom of the wind turbine, the center of gravity is low, and the dumping risk is low; the generator can be large or small, the small wind driven generator can be installed on the roof, the power can be directly supplied to users after being generated, grid connection is not needed, energy loss is low, and distributed independent power supply is achieved.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The wind turbine, compressor and generator provided by the present invention have been described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. A wind turbine, characterized in that it comprises a housing (17) and a rotor (15) arranged in a cavity of said housing (17), said rotor (15) being rotatably connected to said housing (17) at both axial ends, at least one axial end of said rotor (15) extending through and beyond said housing (17); a plurality of rotor blades (112) are sequentially arranged on the peripheral surface of the rotor (15) along the circumferential direction; the wind guide device is characterized in that a wind guide opening (18) is formed in the side face of the housing (17), a guide vane (11) is arranged at the wind guide opening (18) so that wind is blown to the rotor (15) through the guide of the guide vane (11), and the guide vane (11) is fixed to the housing (17) and the angle fixed on the housing (17) is adjustable.

2. A wind turbine according to claim 1, wherein all of the guide vanes (11) are connected to a linkage for simultaneously adjusting the angle at which all of the guide vanes (11) are fixed to the shroud (17) by means of the linkage.

3. A wind turbine according to claim 2, wherein said linkage is connected to a drive mechanism (14) controlled by an electrical signal for adjusting the angle of said guide vanes (11).

4. A wind turbine according to claim 3, further comprising a rotation speed detection device connected to said rotor (15), said rotation speed detection device being electrically connected to an input of a controller, an output of said controller being electrically connected to an input of said drive mechanism (14).

5. A wind turbine according to claim 3, wherein the linkage comprises a linkage rod (12) and a control ring (19) arranged in the housing (17), the control ring (19) being rotatably connected to the housing (17), the drive means (14) being connected to the control ring (19) for driving the control ring (19) in rotation; the linkage rod (12) and the guide vanes (11) are arranged in a one-to-one correspondence mode, one ends of the guide vanes (11) are hinged to the housing (17), one ends of the linkage rod (12) are hinged to the control ring (19), and the other ends of the linkage rod are hinged to the middle portions of the guide vanes (11).

6. Wind turbine according to claim 5, characterised in that said drive mechanism (14) is a linear actuator, the fixed end of which is hinged to said enclosure (17) and the output end is hinged to said control ring (19).

7. A wind turbine according to any of claims 1 to 6, wherein a plurality of guide plates are fixed in the housing (17) and are arranged corresponding to the guide vanes (11), the guide plates comprise a plurality of first guide plates (16) which are sequentially arranged along the circumferential direction with the rotor (15) as the center, each first guide plate (16) extends from a position close to the corresponding radial inner end of the guide vane (11) to a virtual circumferential surface where the radial outer end of the rotor vane (112) is located, a guide channel (111) is formed between the circumferentially adjacent first guide plates (16), and the circumferential length of the guide channel (111) is gradually reduced along the direction from the guide vane (11) to the rotor (15).

8. A wind turbine according to claim 7, wherein said baffles further comprise a second baffle (110) arranged between two circumferentially adjacent first baffles (16), said second baffle (110) being adapted to divert flow at a radially outer port of said air guiding channel (111).

9. A compressor, characterized by comprising a wind turbine according to any of claims 1 to 8; the outer side of the housing (17) is provided with a rotating main shaft (2) fixed on the rotor (15) and extending out of one end of the housing (17), the rotating main shaft (2) is connected with the input end of the gearbox (3), and the output end of the gearbox (3) is connected with the input end of the compressor body (5).

10. A generator, characterized by comprising a wind turbine according to any of claims 1 to 8; the outer side of the housing (17) is provided with a rotating main shaft (2) fixed on the rotor (15) and extending out of one end of the housing (17), the rotating main shaft (2) is connected with the input end of the gearbox (3), and the output end of the gearbox (3) is connected with the input end of the generator body (4).

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