CN113884269A - Double wind turbine generator set wind tunnel test device - Google Patents
Double wind turbine generator set wind tunnel test device Download PDFInfo
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- CN113884269A CN113884269A CN202111056822.8A CN202111056822A CN113884269A CN 113884269 A CN113884269 A CN 113884269A CN 202111056822 A CN202111056822 A CN 202111056822A CN 113884269 A CN113884269 A CN 113884269A
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
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- 239000006247 magnetic powder Substances 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims description 25
- 238000010248 power generation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
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- 238000006243 chemical reaction Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
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Abstract
本发明提供一种双风轮发电机组风洞试验装置，包括：固定台和设置于固定台上的前风轮、前轴承座、前转矩检测装置、前磁粉制动器、后磁粉制动器、后转矩检测装置、后轴承座以及后风轮，前风轮的输出轴轴线和后风轮的输出轴轴线重合；前风轮的输出轴由前轴承座支撑，并与前转矩检测装置传动连接，前转矩检测装置的输出轴与前磁粉制动器传动连接；后风轮的输出轴由后轴承座支撑，并与后转矩检测装置传动连接，后转矩检测装置的输出轴与后磁粉制动器传动连接。本发明实施例的双风轮发电机组风洞试验装置通过磁粉制动器控制风轮的转速，成本低，且结构简单，容易设置，制动效果好。
The invention provides a wind tunnel test device for a double-wind turbine generator set, comprising: a fixed table, a front wind wheel, a front bearing seat, a front torque detection device, a front magnetic powder brake, a rear magnetic powder brake, a rear rotor and a front wind wheel arranged on the fixed table The torque detection device, the rear bearing seat and the rear wind wheel, the output shaft axis of the front wind wheel coincides with the output shaft axis of the rear wind wheel; the output shaft of the front wind wheel is supported by the front bearing seat and is connected with the front torque detection device. , the output shaft of the front torque detection device is connected with the front magnetic powder brake; the output shaft of the rear wind wheel is supported by the rear bearing seat, and is connected with the rear torque detection device, and the output shaft of the rear torque detection device is connected with the rear magnetic powder brake. drive connection. The double wind turbine generator set wind tunnel test device of the embodiment of the present invention controls the rotational speed of the wind turbine through the magnetic powder brake, which has low cost, simple structure, easy installation and good braking effect.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a wind tunnel test device for a double-wind-wheel generator set.
Background
With the rapid development of installed capacity of wind power, the current mainstream wind turbine generator adopts a single-wind-wheel horizontal shaft form and develops towards large scale, but with the large scale development of the wind turbine generator, the core key technology of the wind turbine generator is limited, and the development of a new-form efficient wind energy conversion device is urgently needed.
The serial double-wind wheel structural form is emphasized by the high efficiency and the maturity of key core equipment. Particularly, the two wind wheels are provided with the tandem type double wind wheels with independent transmission decoupling, the two wind wheels can operate in respective most efficient areas, the unit efficiency is high, and the tandem type double wind wheels become a hotspot of the research of the production industry. However, in the research and development process of the novel tandem type double-wind-wheel wind turbine generator, an indispensable link is a wind tunnel experiment of a scaling model, the scaling model of the existing double-wind-wheel wind tunnel experiment is simple in structure, decoupling in transmission is not realized, and the characteristic of the double-wind-wheel wind turbine generator is difficult to reflect truly.
Further, in the related art, a converter and other devices are generally adopted to realize power conversion, so that the cost is high, and the device is not beneficial to wide and large-scale use.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the embodiment of the invention provides a wind tunnel test device for a double-wind-wheel generator set, which comprises: the device comprises a fixed platform, a front wind wheel, a front bearing seat, a front torque detection device, a front magnetic powder brake, a rear torque detection device, a rear bearing seat and a rear wind wheel, wherein the front wind wheel, the front bearing seat, the front torque detection device, the front magnetic powder brake, the rear torque detection device, the rear bearing seat and the rear wind wheel are arranged on the fixed platform;
an output shaft of the front wind wheel is supported by the front bearing seat and is in transmission connection with the front torque detection device, and an output shaft of the front torque detection device is in transmission connection with the front magnetic powder brake;
an output shaft of the rear wind wheel is supported by the rear bearing seat and is in transmission connection with the rear torque detection device, and an output shaft of the rear torque detection device is in transmission connection with the rear magnetic powder brake;
the front torque detection device is used for detecting the torque of the front wind wheel, and the front magnetic powder brake is used for controlling the rotating speed of the front wind wheel;
the rear torque detection device is used for detecting the torque of the rear wind wheel, and the rear magnetic powder brake is used for controlling the rotating speed of the rear wind wheel.
The wind tunnel test device of the double-wind-wheel generator set provided by the embodiment of the invention controls the rotating speed of the wind wheel through the magnetic powder brake, and has the advantages of low cost, simple structure, easiness in setting and good braking effect.
Optionally, the fixed station includes a stand and a platform fixed on the top of the stand, and the front wind wheel, the front bearing seat, the front torque detection device, the front magnetic powder brake, the rear torque detection device, the rear bearing seat and the rear wind wheel are all mounted on the platform.
Optionally, the output shaft of the front wind wheel is in transmission connection with the front torque detection device through a first coupler.
Optionally, the front torque detection device is in transmission connection with the front magnetic powder brake through a second coupling.
Optionally, the output shaft of the rear wind wheel is in transmission connection with the rear torque detection device through a third coupler.
Optionally, the rear torque detection device is in transmission connection with the rear magnetic powder brake through a fourth coupler.
Optionally, the radius of the fan blade of the front wind wheel is larger than that of the fan blade of the rear wind wheel.
Optionally, the distance between the front wind wheel and the rear wind wheel is L, the diameter of the front wind wheel is D, and L is greater than or equal to 0.2D and less than or equal to 0.3D.
Optionally, the front bearing seat, the front torque detection device, the front magnetic powder brake, the rear torque detection device and the rear bearing seat are detachably mounted on the platform.
Optionally, the positions of the front bearing seat, the front torque detection device, the front magnetic powder brake, the rear torque detection device and the rear bearing seat on the platform are all adjustable.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic front view of a wind tunnel testing device for a dual wind turbine generator set according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a wind tunnel test device for a double wind turbine generator set according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1 and fig. 2, the present embodiment provides a wind tunnel test device for a dual wind turbine generator set, including: the wind power generator comprises a fixed table 10, a front wind wheel 20, a front bearing seat 21, a front torque detection device 22, a front magnetic powder brake 23, a rear magnetic powder brake 33, a rear torque detection device 32, a rear bearing seat 31 and a rear wind wheel 30 which are arranged on the fixed table 10, wherein the axis of an output shaft of the front wind wheel 20 is superposed with the axis of an output shaft of the rear wind wheel 30; the fixture 10 provides a mounting base for other components to ensure stability of the testing process.
Wherein, the output shaft of the front wind wheel 20 is supported by the front bearing seat 21 and is in transmission connection with the front torque detection device 22, and the output shaft of the front torque detection device 22 is in transmission connection with the front magnetic powder brake 23; the front torque detection device 22 is used for detecting the torque of the front wind wheel 20, and the front magnetic powder brake 23 is used for controlling the rotating speed of the front wind wheel 20;
an output shaft of the rear wind wheel 30 is supported by a rear bearing seat 31 and is in transmission connection with a rear torque detection device 32, and an output shaft of the rear torque detection device 32 is in transmission connection with a rear magnetic powder brake 33; the rear torque detection device 32 is used for detecting the torque of the rear wind wheel 30, and the rear magnetic powder brake 33 is used for controlling the rotating speed of the rear wind wheel 30.
In the test process, the wind tunnel test device of the double-wind-wheel generator set is fixed in a wind tunnel, airflow drives the front wind wheel 20 and the rear wind wheel 30 to rotate, and the front torque detection device 22 and the rear torque detection device 32 work simultaneously to respectively detect torque parameters of the front wind wheel 20 and the rear wind wheel 30.
The front magnetic powder brake 23 and the rear magnetic powder brake 33 have the braking function, and the rotating speed of the corresponding wind wheel is controlled by controlling the friction force on the rotating shaft. Thereby testing the torque parameters of front rotor 20 and rear rotor 30 at different rotational speeds.
In some embodiments, the stationary stage 10 includes a vertical column 11 and a platform 12 fixed on the top end of the vertical column 11, and the front wind wheel 20, the front bearing seat 21, the front torque detection device 22, the front magnetic-powder brake 23, the rear magnetic-powder brake 33, the rear torque detection device 32, the rear bearing seat 31, and the rear wind wheel 30 are all mounted on the platform 12. The upright 11 is vertically arranged and the platform 12 is horizontally arranged.
In some embodiments, the output shaft of front wind rotor 20 is in driving connection with front torque detecting device 22 via first coupling 40.
In some embodiments, the front torque detection device 22 is in transmission connection with the front magnetic-particle brake 23 through a second coupling 41.
In some embodiments, the output shaft of the rear wind rotor 30 is in driving connection with the rear torque detecting device 32 via a third coupling 42.
In some embodiments, the rear torque detection device 32 is in driving connection with the rear magnetic-particle brake 33 through a fourth coupling 43.
The first coupling 40, the second coupling 41, the third coupling 42 and the fourth coupling 43 may be the same type of coupling, and all of them are used to ensure the effective transmission of torque and reduce the transmission loss.
In some embodiments, the radius of the blades of front rotor 20 is greater than the radius of the blades of rear rotor 30. For example, the radius of the blades of the front wind wheel 20 is R, and the radius of the blades of the rear wind wheel 30 is R, then 0.5R is less than or equal to R is less than or equal to 0.8R. The front wind wheel 20 and the rear wind wheel 30 operate more stably in the size ratio, and are obviously superior to the related art but the generating efficiency of the wind wheels.
In some embodiments, the distance between the front wind wheel 20 and the rear wind wheel 30 is L, the diameter of the front wind wheel 20 is D, and L is more than or equal to 0.2D and less than or equal to 0.3D. The distance range between the front wind wheel 20 and the rear wind wheel 30 can ensure the stability of the platform, and is beneficial to normal test.
In some embodiments, the front bearing housing 21, the front torque sensing device 22, the front magnetic-particle brake 23, the rear magnetic-particle brake 33, the rear torque sensing device 32, and the rear bearing housing 31 are removably mounted to the platform 12. The device is detachably mounted, and individual parts can be conveniently replaced and adjusted in the test process.
In some embodiments, the positions of the front bearing block 21, the front torque sensing device 22, the front magnetic-particle brake 23, the rear magnetic-particle brake 33, the rear torque sensing device 32, and the rear bearing block 31 on the platform 12 are adjustable. The position of each component can be set more flexibly by setting the position to be adjustable, so that more parameters can be obtained in the test.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides a two wind turbine generator set wind tunnel test device which characterized in that includes: the wind power generation device comprises a fixed platform (10), and a front wind wheel (20), a front bearing seat (21), a front torque detection device (22), a front magnetic powder brake (23), a rear magnetic powder brake (33), a rear torque detection device (32), a rear bearing seat (31) and a rear wind wheel (30) which are arranged on the fixed platform (10), wherein the axis of an output shaft of the front wind wheel (20) is superposed with the axis of an output shaft of the rear wind wheel (30);
an output shaft of the front wind wheel (20) is supported by the front bearing seat (21) and is in transmission connection with the front torque detection device (22), and an output shaft of the front torque detection device (22) is in transmission connection with the front magnetic powder brake (23);
an output shaft of the rear wind wheel (30) is supported by the rear bearing seat (31) and is in transmission connection with the rear torque detection device (32), and an output shaft of the rear torque detection device (32) is in transmission connection with the rear magnetic powder brake (33);
the front torque detection device (22) is used for detecting the torque of the front wind wheel (20), and the front magnetic powder brake (23) is used for controlling the rotating speed of the front wind wheel (20);
the rear torque detection device (32) is used for detecting the torque of the rear wind wheel (30), and the rear magnetic powder brake (33) is used for controlling the rotating speed of the rear wind wheel (30).
2. The wind tunnel test device of the double-wind-wheel generator set according to claim 1, wherein the fixing table (10) comprises a vertical column (11) and a platform (12) fixed to the top end of the vertical column (11), and the front wind wheel (20), the front bearing seat (21), the front torque detection device (22), the front magnetic powder brake (23), the rear magnetic powder brake (33), the rear torque detection device (32), the rear bearing seat (31) and the rear wind wheel (30) are all mounted on the platform (12).
3. The wind tunnel test device of the double-wind-wheel generator set according to claim 1, wherein the output shaft of the front wind wheel (20) is in transmission connection with the front torque detection device (22) through a first coupler (40).
4. The wind tunnel test device for the double wind turbine generator sets according to claim 1, wherein the front torque detection device (22) is in transmission connection with the front magnetic powder brake (23) through a second coupler (41).
5. The wind tunnel test device of the double-wind-wheel generator set according to claim 1, wherein the output shaft of the rear wind wheel (30) is in transmission connection with the rear torque detection device (32) through a third coupler (42).
6. The wind tunnel test device for the double wind turbine generator sets according to claim 1, wherein the rear torque detection device (32) is in transmission connection with the rear magnetic powder brake (33) through a fourth coupler (43).
7. The wind tunnel test device of the double wind wheel generator set according to claim 1, wherein the radius of the fan blade of the front wind wheel (20) is larger than that of the fan blade of the rear wind wheel (30).
8. The wind tunnel test device of the double-wind-wheel generator set according to claim 1, wherein the distance between the front wind wheel (20) and the rear wind wheel (30) is L, the diameter of the front wind wheel (20) is D, and L is greater than or equal to 0.2D and less than or equal to 0.3D.
9. The wind tunnel test device for the double wind turbine generator set according to claim 2, wherein the front bearing seat (21), the front torque detection device (22), the front magnetic powder brake (23), the rear magnetic powder brake (33), the rear torque detection device (32) and the rear bearing seat (31) are detachably mounted on the platform (12).
10. The wind tunnel test device for the double wind turbine generator set according to claim 9, wherein the positions of the front bearing seat (21), the front torque detection device (22), the front magnetic powder brake (23), the rear magnetic powder brake (33), the rear torque detection device (32) and the rear bearing seat (31) on the platform (12) are adjustable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111056822.8A CN113884269A (en) | 2021-09-09 | 2021-09-09 | Double wind turbine generator set wind tunnel test device |
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| CN202111056822.8A CN113884269A (en) | 2021-09-09 | 2021-09-09 | Double wind turbine generator set wind tunnel test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115434874A (en) * | 2022-08-30 | 2022-12-06 | 中国华能集团清洁能源技术研究院有限公司 | PIV-based phase-locked measurement method and system for wake flow of double wind turbine set |
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