CN112081718A - Magnetic suspension wind power generation device - Google Patents
Magnetic suspension wind power generation device Download PDFInfo
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- CN112081718A CN112081718A CN202011073878.XA CN202011073878A CN112081718A CN 112081718 A CN112081718 A CN 112081718A CN 202011073878 A CN202011073878 A CN 202011073878A CN 112081718 A CN112081718 A CN 112081718A
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- centrifugal impeller
- guide sleeve
- power generation
- main shaft
- air
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- 238000010248 power generation Methods 0.000 title claims abstract description 27
- 239000000725 suspension Substances 0.000 title claims abstract description 17
- 238000005339 levitation Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 description 10
- 239000011324 bead Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/06—Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Abstract
The invention discloses a magnetic suspension wind power generation device, which comprises a main shaft and a centrifugal impeller, wherein the centrifugal impeller is rotationally connected with the main shaft; the cylindrical air guide sleeve is rotatably connected to the main shaft; the cylindrical air guide sleeve is provided with a tail wing; the centrifugal impeller is arranged in the cylindrical air guide sleeve, and the side wall of the cylindrical air guide sleeve is provided with an air inlet and an air outlet; and establishing a plane rectangular coordinate system by taking the circle center of the bottom end surface of the cylindrical flow guide cover as a base point, wherein the air inlet and the air outlet are respectively positioned in two quadrants which are distributed diagonally. The invention can improve the utilization rate of the wind energy of the power generation device and reduce the cost of wind power generation.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a magnetic suspension wind power generation device.
Background
Wind power generation refers to converting kinetic energy of wind into electric energy. Wind energy is a clean and pollution-free renewable energy source, is very environment-friendly by utilizing wind power for power generation, and has huge wind energy accumulation.
The prior published Chinese patent with the patent name of 'vertical shaft type wind driven generator' and the publication number of CN201071790 is that a fan cover is covered outside a fan blade, half of the fan blade is positioned in the fan cover, the half of the fan blade is exposed outside the fan cover and faces the wind, a wind rudder is arranged on the fan cover, and the wind rudder is utilized to enable the fan cover to automatically adjust the windward angle along with the wind direction, so that the rotating speed of the fan blade is constant, and the power generation output power is constant. However, the utilization rate of the wind energy by the fan blades in the patent is not high.
Disclosure of Invention
The invention aims to provide a magnetic suspension wind power generation device which is designed for the magnetic suspension wind power generation device, can improve the utilization rate of the power generation device to wind energy and reduce the wind power generation cost.
The embodiment of the invention is realized by the following technical scheme:
a magnetic suspension wind power generation device comprises a main shaft and a centrifugal impeller, wherein the centrifugal impeller is rotationally connected with the main shaft; the cylindrical air guide sleeve is rotatably connected to the main shaft; the cylindrical air guide sleeve is provided with a tail wing; the centrifugal impeller is arranged in the cylindrical air guide sleeve, and the side wall of the cylindrical air guide sleeve is provided with an air inlet and an air outlet; and establishing a plane rectangular coordinate system by taking the circle center of the bottom end surface of the cylindrical flow guide cover as a base point, wherein the air inlet and the air outlet are respectively positioned in two quadrants which are distributed diagonally.
In an embodiment of the present invention, a magnetic suspension device is fixed to the main shaft and disposed at the bottom of the centrifugal impeller; the magnetic suspension device is used for lifting the centrifugal impeller.
In an embodiment of the present invention, the cylindrical air guide sleeve includes an annular sidewall and a top cover, the top cover is disposed at one end of the annular sidewall, and the top cover is rotatably connected to the main shaft; the annular side wall comprises a first wind shield and a second wind shield, the first wind shield and the second wind shield are arranged at intervals, one gap between the first wind shield and the second wind shield is configured as an air inlet, and the other gap between the first wind shield and the second wind shield is configured as an air outlet.
In one embodiment of the invention, the tail fin is fixed to the top cover, and the tail fin is arranged along the radial direction of the top cover; the empennage and the side edge of the air outlet close to the empennage form a set angle.
In one embodiment of the invention, the magnetic levitation device comprises a support base plate fixed to the spindle; the upper surface of the supporting bottom plate is provided with a plurality of first magnet groups; and a second magnet group which is repelled with the first magnet group is arranged at the bottom of the centrifugal impeller.
In an embodiment of the present invention, the centrifugal impeller includes an upper fixing plate, a vane and a lower fixing plate, the vane is fixed between the upper fixing plate and the lower fixing plate; the upper fixing plate and the lower fixing plate are both rotationally connected with the main shaft through bearings; the second magnet group is arranged on the lower surface of the lower fixing plate.
In an embodiment of the invention, the first magnet group includes a plurality of magnet blocks circumferentially arrayed around the main axis.
In an embodiment of the invention, the second magnet group includes a plurality of magnet blocks circumferentially arrayed around the spindle.
In an embodiment of the invention, the centrifugal impeller is configured as a steel structure.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
according to the embodiment of the invention, the cylindrical air guide sleeve is arranged outside the centrifugal impeller, the whole centrifugal impeller is arranged in the cylindrical air guide sleeve, the cylindrical air guide sleeve is provided with the tail wing, and when airflow in any wind direction acts on the tail wing, the cylindrical air guide sleeve can automatically align to the wind direction, so that the air inlet of the cylindrical air guide sleeve faces to the airflow. The technical scheme is that an air inlet and an air outlet are arranged on a cylindrical air guide cover, a plane rectangular coordinate system is established by taking the circle center of the bottom end surface of the cylindrical air guide cover as a base point, the air inlet and the air outlet are respectively positioned in two quadrants which are diagonally distributed, when air flows through the cylindrical air guide cover, a first air baffle of the cylindrical air guide cover faces the wind, because the air inlet is positioned at the windward side, the air outlet is positioned at the leeward side, partial straight air flow directly flows into the cylindrical air guide cover from the air inlet, acts on blades of a centrifugal impeller and pushes the centrifugal impeller to rotate, partial air flow is guided by the arc surface of the first air baffle, the air flow flows to two sides of the cylindrical air guide cover to form tangential air flow flowing on the surface of the cylindrical air guide cover, the tangential air flow plays a role in guiding along the first air baffle at the moment, and flows into the air inlet along the tangential, the centrifugal impeller is pushed to rotate. The tangential airflow acts on the windward side of the blade perpendicularly or obliquely to the windward side of the blade to further push the centrifugal impeller to rotate, and after the centrifugal impeller rotates for a certain angle, the windward side of the blade is further pushed to rotate by the direct airflow under the action of the direct airflow. And because the second air baffle is arranged, the air current flowing into the air inlet forms an arc-shaped air current flowing along the inner wall of the second air baffle under the flow guide effect of the inner wall of the second air baffle, the arc-shaped air current further pushes the centrifugal impeller to promote the centrifugal impeller to rotate, when the arc-shaped air current flows to the air outlet, part of the air current in the arc-shaped air current is thrown out from the air outlet under the centrifugal effect, and part of the air current in the arc-shaped air current forms a rotating air current in the cylindrical air guide sleeve under the drive of the centrifugal impeller. This technical scheme is through setting up first deep bead, second deep bead and air intake, only the blade that gets into in the air intake effect area can receive outside air current's promotion in making centrifugal impeller, avoids other blades to meet the wind in the centrifugal impeller and produces the power opposite with direction of rotation, and under the combined action of rotatory air current, further promote centrifugal impeller to rotate, prior art compares, can improve centrifugal impeller's rotational speed, improves the utilization ratio of power generation facility to the wind energy, reduce wind power generation cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the cylindrical air guide sleeve of the present invention
FIG. 3 is a schematic view of the structure of a centrifugal impeller according to the present invention;
FIG. 4 is a schematic structural diagram of a magnetic levitation apparatus according to the present invention;
FIG. 5 is a schematic structural view of a lower fixing plate and a first magnet set according to the present invention;
fig. 6 is a schematic structural view of the support base and the second magnet set according to the present invention.
Icon: 1-main shaft, 2-centrifugal impeller, 21-upper fixing plate, 22-blade, 23-lower fixing plate, 3-cylindrical air guide sleeve, 31-first air baffle, 32-second air baffle, 33-air inlet, 34-air outlet, 35-front end of first air baffle, 36-front end of second air baffle, 37-cover plate, 41-supporting bottom plate, 42-first magnet group, 43-second magnet group, 5-generator device and 6-tail wing.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the present invention is used, the description is merely for convenience of describing the present invention and simplifying the description, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, and thus, cannot be understood as the limitation of the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "configured," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 6, a magnetic levitation wind power generator includes a main shaft 1 and a centrifugal impeller 2, wherein the centrifugal impeller 2 is rotatably connected to the main shaft 1; the cylindrical air guide sleeve 3 is rotatably connected to the main shaft 1; the cylindrical air guide sleeve 3 is provided with a tail wing 6; the centrifugal impeller 2 is arranged in the cylindrical air guide sleeve 3, and the side wall of the cylindrical air guide sleeve 3 is provided with an air inlet 33 and an air outlet 34; a rectangular plane coordinate system is established with the center of the circle of the bottom end surface of the cylindrical air guide sleeve 3 as a base point, and the air inlet 33 and the air outlet 34 are respectively located in two quadrants which are distributed diagonally.
In order to improve the utilization rate of the wind energy of the generating set and reduce the cost of wind power generation, the technical scheme is that a main shaft 1 is provided with a cylindrical air guide sleeve 3 through a bearing, a centrifugal impeller 2 on the main shaft 1 is arranged in the cylindrical air guide sleeve 3, the cylindrical air guide sleeve 3 comprises an annular side wall and a top cover, the cylindrical air guide sleeve 3 is a cylindrical shell with one open end and one closed end, the top cover is arranged at one end of the annular side wall, and the top cover is rotationally connected with the main shaft 1; the annular side wall includes a first wind deflector 31 and a second wind deflector 32, the first wind deflector 31 and the second wind deflector 32 are disposed at an interval, a gap between the first wind deflector 31 and the second wind deflector 32 is configured as an air inlet 33, and another gap between the first wind deflector 31 and the second wind deflector 32 is configured as an air outlet 34. The centrifugal impeller 2 comprises an upper fixing plate 21, blades 22 and a lower fixing plate 23, wherein the blades 22 are fixed between the upper fixing plate 21 and the lower fixing plate 23; the upper fixing plate 21 and the lower fixing plate 23 are rotatably connected with the main shaft 1 through bearings. The centrifugal impeller 2 is configured as a steel structure. It should be noted that the vanes 22 may be configured as straight plates, curved plates, or other shaped vanes 22. When the cylindrical air guide sleeve 3 and the centrifugal impeller 2 are both arranged on the main shaft 1 through bearings, the cylindrical air guide sleeve 3 covers the centrifugal impeller 2, the cylindrical air guide sleeve 3 and the centrifugal impeller 2 rotate independently, and the cylindrical air guide sleeve 3 and the centrifugal impeller 2 do not interfere with each other. The tail wing 6 is fixed on the top cover, and the tail wing 6 is arranged along the radial direction of the top cover; the empennage 6 and the side edge of the air outlet 34 close to the empennage 6 form a set angle. The set angle may be 0 to 10 °.
In this embodiment, the horizontal air flow is divided into left and right air flows along the central line of the cylindrical air guide sleeve 3 under the action of the first air baffle 31, the left air flow flows to the air inlet 33 along the outer surface of the first air baffle 31, the right air flow flows to the leeward side of the cylindrical air guide sleeve 3 along the outer surface of the first air baffle 31, and a negative pressure zone is formed at the air outlet 34. The air current of left side flows to air intake 33 along first deep bead 31 surface to form tangential air current at first deep bead 31 front end, and the air current that directly flows into air intake 33 among the horizontal air current is the straight air current, and these two air currents interact after the back with circular-arc air current inflow air intake 33 in, this circular-arc air current and horizontal air current central line be 0 ~ 90 contained angle. At the same time, the blade 22 passing through the air inlet 33 forms an included angle of 0-100 degrees with the central line of the horizontal airflow, so the arc-shaped airflow plays a role of pushing the blade 22 tangentially. When the vane 22 passing through the air inlet 33 starts to be far away from the air inlet 33, the arc-shaped airflow in the area of the air inlet 33 always has the function of tangentially pushing the vane 22. When the blade 22 passes through the plate of the area where the first wind shield is located, the blade 22 moves close to the airflow source relative to the arc-shaped airflow, and the first wind shield 31 blocks the airflow in the horizontal airflow, which should directly flow through the impeller. When the circular arc airflow flows into the air inlet 33, the circular arc airflow collides with the inner wall of the front end of the second air baffle 32 and then rebounds into the cylindrical air guide sleeve 3 to apply work to the blades 22.
In the present embodiment, the tail fin 6 functions as: the windward angle of the whole cylindrical air guide sleeve 3 is adjusted, and in any wind direction, the first wind shield 31 of the cylindrical air guide sleeve 3 is positioned on the windward side.
In the present embodiment, the first wind deflector 31 functions to: (1) the air flow which flows to the first wind shield 31 from the head-on is blocked, and the air flow which flows from the head-on is prevented from directly flowing into the cylindrical air guide sleeve 3; (2) the guide and diversion function is performed on the air flow coming from the head-on, the air flow coming from the head-on is divided into a left air flow and a right air flow, the left air flow is guided to flow along the surface of the first wind shield 31, and finally flows into the air inlet 33 in a tangential air flow mode, and the centrifugal impeller 2 is pushed to rotate; (3) the air flow thrown out by the centrifugal impeller 2 is blocked, and the air flow thrown out by the centrifugal impeller 2 is prevented from flowing out of the cylindrical air guide sleeve 3 from the first air baffle 31.
In the present embodiment, the air inlet 33 functions as: the air flow flows into the cylindrical air guide sleeve 3 from the air inlet 33 and does work on the centrifugal impeller 2, and since the area of the air inlet 33 is smaller than the total area of the air flow passing through the air inlet, a part of the air flow cannot flow into the air inlet 33, but flows through the embodiment from the upper side or the lower side of the cylindrical air guide sleeve 3, or along the first air deflector 31, or along the second air deflector 32.
In the present embodiment, the second wind deflector 32 functions to: (1) preventing the wind of the centrifugal impeller 2 from flowing out of the cylindrical air guide sleeve 3 from the area where the second wind baffle 32 is located; (2) the airflow flowing into the air inlet 33 is caused to flow along the inner wall of the second wind deflector 32, so that the airflow forms rotating airflow in the cylindrical air guide sleeve 3 to push the centrifugal impeller 2.
In this embodiment, the air outlet 34 functions as: the air flow after pushing the centrifugal impeller 2 to rotate and the air flow thrown out by the centrifugal impeller 2 are used as flow channels, so that the air flow and the air flow can conveniently flow into the atmosphere from the cylindrical air guide sleeve 3 through the air outlet 34.
In the embodiment, the cylindrical air guide sleeve 3 is arranged outside the centrifugal impeller 2, the whole centrifugal impeller 2 is arranged in the cylindrical air guide sleeve 3, the tail wing 6 is arranged on the cylindrical air guide sleeve 3, and when the tail wing 6 is utilized, the air flow in any wind direction acts on the tail wing 6, the cylindrical air guide sleeve 3 can automatically align with the wind direction, so that the air inlet 33 of the cylindrical air guide sleeve 3 faces to the air flow. In the technical scheme, an air inlet 33 and an air outlet 34 are arranged on a cylindrical air guide sleeve 3, a plane rectangular coordinate system is established by taking the circle center of the bottom end face of the cylindrical air guide sleeve 3 as a base point, the air inlet 33 and the air outlet 34 are respectively positioned in two quadrants which are diagonally distributed, when air flows through the cylindrical air guide sleeve 3, a first air baffle 31 of the cylindrical air guide sleeve 3 faces the wind, because the air inlet 33 is positioned on the windward side and the air outlet 34 is positioned on the leeward side, part of straight air flow directly flows into the cylindrical air guide sleeve 3 from the air inlet 33, acts on a blade 22 of a centrifugal impeller 2 and pushes the centrifugal impeller 2 to rotate, and part of air flow is guided by an arc surface of the first air baffle 31, the air flow flows to two sides of the cylindrical air guide sleeve 3 to become tangential air flow flowing on the surface of the cylindrical air guide sleeve 3, the first air baffle 31 plays a role of guiding the flow at the moment, and the tangential, and acts on the blades 22 of the centrifugal impeller 2 to rotate the centrifugal impeller 2. The tangential airflow acts on the windward side of the blade 22 perpendicularly or obliquely to the windward side of the blade 22, so as to further push the centrifugal impeller 2 to rotate, and after the centrifugal impeller 2 rotates for a certain angle, the windward side of the blade 22 receives the action of the direct airflow and is further pushed to rotate by the direct airflow. And because of the arrangement of the second wind deflector 32, the airflow flowing into the air inlet 33 forms an arc-shaped airflow flowing along the inner wall of the second wind deflector 32 under the guiding action of the inner wall of the second wind deflector 32, the arc-shaped airflow further generates a pushing action on the centrifugal impeller 2 to promote the centrifugal impeller 2 to rotate, when the arc-shaped airflow flows to the air outlet 34, part of the arc-shaped airflow is thrown out from the air outlet 34 under the centrifugal action, and part of the arc-shaped airflow forms a rotating airflow in the cylindrical air guide sleeve 3 under the driving of the centrifugal impeller 2. This technical scheme is through setting up first deep bead 31, second deep bead 32 and air intake 33, only the blade 22 that gets into in the air intake 33 action zone can receive outside air current's promotion in making centrifugal impeller 2, avoid other blades 22 to produce the power opposite with direction of rotation against the wind in centrifugal impeller 2, and under the combined action of rotatory air current, further promote centrifugal impeller 2 to rotate, compared in the prior art, can improve centrifugal impeller 2's rotational speed, improve the utilization ratio of power generation facility to the wind energy, reduce the wind power generation cost.
In some embodiments, the device further comprises a magnetic suspension device which is fixed on the main shaft 1 and arranged at the bottom of the centrifugal impeller 2; the magnetic levitation device is used to lift the centrifugal impeller 2. In the existing vertical wind driven generator, an impeller is connected with a main shaft 1 through a bearing, and the bearing has larger friction resistance when rotating due to the larger weight of the impeller, and the performance of the bearing needs to meet higher requirements. In order to reduce the friction resistance of the rotation of the bearing and reduce the performance requirement of the bearing, the technical scheme is provided with a magnetic suspension device, wherein the magnetic suspension device comprises a supporting base plate 41, and the supporting base plate 41 is fixed on the main shaft 1; a plurality of first magnet groups 42 are arranged on the upper surface of the supporting base plate 41; a second magnet group 43 is disposed at the bottom of the centrifugal impeller 2 to repel the first magnet group 42. The second magnet group 43 is disposed on the lower surface of the lower fixing plate 23. The magnetic force action of mutual repulsion of the first magnet group 42 and the second magnet group 43 is utilized to enable the impeller to be suspended above the supporting base plate 41, so that the pressure generated by the weight of the impeller on the bearing is avoided, the frictional resistance of the bearing is reduced, and the performance requirement of the bearing is lowered. The first magnet group 42 includes a plurality of magnet blocks arranged in a circumferential array around the spindle 1. The second magnet group 43 includes a plurality of magnet blocks circumferentially arrayed around the spindle 1.
The first magnet group 42 on the surface of the support base 41 is arranged in a plurality of turns, and each turn is formed by a circumferential array of a plurality of identical magnet blocks. The second magnet group 43 on the lower surface of the lower fixing plate 23 is arranged in the same manner as the first magnet group 42.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A magnetic suspension wind power generation device comprises a magnetic suspension body,
the centrifugal impeller is rotationally connected with the main shaft;
it is characterized by also comprising the following steps of,
the cylindrical air guide sleeve is rotationally connected with the main shaft;
the cylindrical air guide sleeve is provided with a tail wing;
the centrifugal impeller is arranged in the cylindrical air guide sleeve, and the side wall of the cylindrical air guide sleeve is provided with an air inlet and an air outlet;
and establishing a plane rectangular coordinate system by taking the circle center of the bottom end surface of the cylindrical flow guide cover as a base point, wherein the air inlet and the air outlet are respectively positioned in two quadrants which are distributed diagonally.
2. The magnetic levitation wind power generation device according to claim 1, comprising,
the magnetic suspension device is fixed on the main shaft and is arranged at the bottom of the centrifugal impeller; the magnetic suspension device is used for lifting the centrifugal impeller.
3. The magnetic levitation wind power generation device according to claim 1,
the cylindrical air guide sleeve comprises an annular side wall and a top cover, the top cover is arranged at one end of the annular side wall, and the top cover is rotationally connected with the main shaft;
the annular side wall comprises a first wind shield and a second wind shield, the first wind shield and the second wind shield are arranged at intervals, one gap between the first wind shield and the second wind shield is configured as an air inlet, and the other gap between the first wind shield and the second wind shield is configured as an air outlet.
4. The magnetic levitation wind power generation device according to claim 3,
the tail wing is fixed on the top cover and arranged along the radial direction of the top cover;
the empennage and the side edge of the air outlet close to the empennage form a set angle.
5. The magnetic levitation wind power generation device according to claim 2,
the magnetic suspension device comprises a supporting bottom plate, and the supporting bottom plate is fixed on the main shaft;
the upper surface of the supporting bottom plate is provided with a plurality of first magnet groups;
and a second magnet group which is repelled with the first magnet group is arranged at the bottom of the centrifugal impeller.
6. The magnetic levitation wind power generation device according to claim 5,
the centrifugal impeller comprises an upper fixing plate, blades and a lower fixing plate, and the blades are fixed between the upper fixing plate and the lower fixing plate;
the upper fixing plate and the lower fixing plate are both rotationally connected with the main shaft through bearings;
the second magnet group is arranged on the lower surface of the lower fixing plate.
7. The maglev wind power plant according to claim 5 or 6, characterized in that the first magnet group comprises a number of magnet blocks arranged in a circumferential array centered on the main shaft.
8. The maglev wind power plant according to claim 5 or 6, characterized in that the second magnet group comprises a number of magnet blocks arranged in a circumferential array centered on the main shaft.
9. The magnetic levitation wind power generation apparatus according to claim 6, wherein the centrifugal impeller is configured as a steel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011073878.XA CN112081718A (en) | 2020-10-09 | 2020-10-09 | Magnetic suspension wind power generation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011073878.XA CN112081718A (en) | 2020-10-09 | 2020-10-09 | Magnetic suspension wind power generation device |
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| CN112081718A true CN112081718A (en) | 2020-12-15 |
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| CN202011073878.XA Pending CN112081718A (en) | 2020-10-09 | 2020-10-09 | Magnetic suspension wind power generation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635828A (en) * | 2022-05-19 | 2022-06-17 | 山西丰秦源新能源开发有限公司 | All-season breeze energy-gathering wind power generation induced air flow guiding method |
| CN115030854A (en) * | 2022-06-16 | 2022-09-09 | 燕山大学 | Pipeline micro generator and data acquisition terminal |
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