Flow guide type vertical shaft magnetic suspension wind power generation equipment

Abstract

The invention discloses flow guide type vertical shaft magnetic suspension wind power generation equipment, which belongs to the field of power equipment and comprises a mounting main body and a rotating part arranged on the mounting main body, the driving part is driven by wind power to drive the rotating part to rotate; the transmission part transmits kinetic energy generated by rotation of the rotating part to the power generator part and converts the kinetic energy into electric energy; and the static air collecting part is used for collecting and accelerating natural air and then guiding the natural air to the driving part. The problem that an existing resistance type vertical axis wind turbine is low in power generation efficiency due to the influence of natural wind resistance is solved, an efficient double-turbine structure, a magnetism gathering type permanent magnet suspension bearing and lubrication-free alloy rolling bearing shaft system technology, efficient blade profile design and a reasonable blade layout scheme are adopted, and the wind turbine is high in power generation efficiency. Efficient utilization of wind energy resources is achieved, the input power of wind energy is increased, and the power generation efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of power equipment, and particularly relates to a diversion-type vertical-axis maglev wind power generation device. Background Art

[0002] Wind energy, as a green and clean energy source, is one of the most commercially viable renewable energy sources. Compared with traditional energy sources, wind power generation does not rely on external energy, has no fuel price risk, has a stable power generation cost, and has no environmental costs such as carbon emissions. Moreover, the wind power industry is a typical high-tech industry, which can drive the development of a series of emerging industries such as low-carbon economy in the upstream and downstream, and can effectively mitigate climate change, improve energy security, and promote energy conservation and carbon reduction in industrial enterprises.

[0003] As one of the main alternative energy technologies for improving the energy structure, addressing climate change, and energy security issues, wind power generation has developed very rapidly.

[0004] The types of wind turbines are mainly divided into two categories: horizontal-axis and vertical-axis. Currently, the three-blade horizontal-axis wind turbines dominate the market. The starting wind speed of horizontal-axis wind turbines is 4 - 5 m / s, and the maximum needs to reach 5.9 m / s to start. The wind direction is restricted within 30 degrees. Its inlet angle is small and it cannot change the direction at any time. It is suitable for installation in strong wind areas with an average annual wind speed ≥ 5 m / s. The difficulty of three-blade horizontal-axis wind turbine generators is the large "wind alignment loss" and low wind energy utilization rate.

[0005] The starting wind speed of vertical-axis wind turbines is 1.5 - 2 m / s, and there is no wind direction restriction. It is suitable for installation in wind areas with an average annual wind speed ≥ 3 m / s. From the two aspects of wind force and wind direction, it expands the breadth of wind energy utilization, can make full use of wind energy resources, and greatly improves the stability of wind power generation and the wind energy utilization efficiency. Under the same wind speed and power generation, the power generation of the fan can be doubled, which is twice the average annual power generation of the three-blade horizontal-axis fan.

[0006] As a brand-new wind power solution, vertical-axis wind turbines will promote the development and utilization of wind energy on a wider scale with the advantage of effectively reducing the overall wind power. It is applicable to wind farms of various scales and can be installed in places such as families, small enterprises, schools, etc. to provide independent power supply and reduce dependence on the traditional power grid; it can also be installed in remote areas, islands and other places with difficult power supply; it can also provide power for communication base stations to ensure the normal operation of communication equipment; in addition, with the development of new energy vehicles, it can also be installed on highways to provide power for new energy vehicle charging in service areas. With the continuous progress of wind power generation technology, vertical-axis wind turbines have a broader development prospect.

[0007] The characteristics of wind energy are poor stability, but its reserves are huge and inexhaustible. The operation has low cleaning costs. There are still idle wind energy areas in China with an average annual wind speed ≤ 5 m / s, and there is a huge market for installing micro-wind power generation equipment. Currently, there are two types of vertical-axis wind turbines in the micro-wind power generation market, namely lift-type and drag-type. Both of these wind power generation devices generate electricity by directly blowing natural wind onto the wind wheel, and they are both affected by the reverse resistance of natural wind, resulting in a reduction in wind energy utilization rate and power generation efficiency. Summary of the Invention

[0008] The main object of the present invention is to provide a diversion-type vertical-axis magnetic levitation wind power generation device to solve the problem that the existing drag-type vertical-axis wind turbine has a reduced power generation efficiency due to the influence of natural wind resistance.

[0009] To achieve the above object, the technical solution adopted by the present invention is: a diversion-type vertical-axis magnetic levitation wind power generation device, comprising:

[0010] An installation main body;

[0011] A rotating part, the rotating part is rotatably installed on the installation main body;

[0012] A driving part, the driving part is fixedly connected to the rotating part, and the driving part is used to drive the rotating part to rotate through wind power;

[0013] A transmission part, the transmission part is connected to the rotating part, the transmission part is connected with a generator part, and the transmission part is used to transmit the kinetic energy generated by the rotation of the rotating part to the generator part to be converted into electric energy;

[0014] A static wind collection part, the static wind collection part is fixedly connected to the installation main body, and the static wind collection part is used to concentrate and accelerate the natural wind and guide it to the driving part.

[0015] In a possible implementation manner, the static wind collection part includes a plurality of static blades, and the plurality of static blades are arranged and connected to the installation main body.

[0016] In a possible implementation manner, both ends of the installation main body respectively have accommodation chambers, the rotating part includes a main shaft assembly, and both ends of the main shaft assembly are installed in the accommodation chambers.

[0017] In a possible implementation manner, bearing parts are respectively sleeved at both ends of the main shaft assembly, and the bearing parts are respectively installed in the accommodation chambers.

[0018] In a possible implementation manner, the bearing parts include radial alloy rolling bearings.

[0019] In a possible implementation, a permanent magnet magnetic suspension bearing is sleeved on the bottom end of the main shaft assembly, and the permanent magnet magnetic suspension bearing is located in the accommodation chamber below the installation main body.

[0020] In a possible implementation, a spacer sleeve is arranged between the permanent magnet magnetic suspension bearing and the bearing member close to it.

[0021] In a possible implementation, the driving part includes a plurality of moving blades, and the plurality of moving blades are arranged and connected to the rotating part.

[0022] In a possible implementation, a plurality of moving blade connecting plates corresponding to the moving blades are arranged on the rotating part, and the moving blades are installed on the moving blade connecting plates.

[0023] In a possible implementation, the transmission part includes a gear transmission system, the generator part has a rotor, and the output end of the gear transmission system is connected to the rotor.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The flow guiding type vertical axis magnetic suspension wind power generation device of the present invention is a drag type vertical axis wind turbine. It adopts an efficient double turbine structure, a magnetic concentrating permanent magnet magnetic suspension bearing and a non-lubricated alloy rolling bearing shaft system technology, as well as an efficient blade profile design and a reasonable blade layout scheme, realizing the efficient utilization of wind energy resources, increasing the input power of wind energy, improving the power generation efficiency, and at the same time having the advantages of low starting wind speed, low noise, high wind energy utilization rate, safe and non-radiative, no need to face the wind, convenient transportation and installation, simple structure and easy maintenance, low operation, maintenance and repair costs, etc., and can be applied to wind power generation areas with a breeze or above. Brief Description of the Drawings

[0026] Figure 1 It is a schematic cross-sectional structure view of a flow guiding type vertical axis magnetic suspension wind power generation device of the present invention;

[0027] Figure 2 It is a schematic bottom view of the structure of a flow guiding type vertical axis magnetic suspension wind power generation device of the present invention;

[0028] Figure 3 It is a schematic structure view of the installation main body and the static wind collection part of a flow guiding type vertical axis magnetic suspension wind power generation device of the present invention;

[0029] Figure 4 It is a schematic structure view of the driving part, the rotating part and the transmission part of a flow guiding type vertical axis magnetic suspension wind power generation device of the present invention;

[0030] Figure 5This is a schematic structural view of the rotating part of a flow - guiding vertical - axis magnetic - levitation wind power generation device of the present invention.

[0031] In the figure: 1. Upper bearing cover; 2. Upper alloy rolling bearing; 3. Upper shaft head; 4. Upper bearing seat; 5. Main shaft body; 6. Moving blade connecting plate; 7. Moving blade; 8. Static blade; 9. Lower shaft head; 10. Lower bearing cover; 11. Lower alloy rolling bearing; 12. Spacer sleeve; 13. Permanent - magnet magnetic - levitation bearing; 14. Lower bearing seat; 15. Gear cover; 16. Small gear; 17. Large gear. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0033] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. The terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above - mentioned terms in the embodiments of the present invention can be understood according to specific situations.

[0034] See Figure 1 and Figure 2 , the embodiments of the present invention provide a flow - guiding vertical - axis magnetic - levitation wind power generation device, including:

[0035] Installation main body;

[0036] Rotating part, the rotating part is rotatably installed on the installation main body;

[0037] Driving part, the driving part is fixedly connected to the rotating part, and the driving part drives the rotating part to rotate through wind power;

[0038] The transmission part is connected to the rotating part, and a generator part is connected to the transmission part. The transmission part transmits the kinetic energy generated by the rotation of the rotating part due to wind energy to the generator part to be converted into electric energy.

[0039] The static wind collection part is fixedly connected to the installation main body, and the static wind collection part is used for concentrating and accelerating the natural wind and guiding it to the driving part.

[0040] In this application, the installation main body can fix and install the flow - guiding type vertical - axis magnetic - levitation wind power generation equipment of this embodiment on the foundation, ensuring that the entire equipment will not shake or even topple during the power generation process driven by the wind. The static wind collection part concentrates and accelerates the natural wind in any wind direction and blows it towards the driving part. The installation main body and the static wind collection part are fixed. After being driven by the wind, the driving part drives the rotating part to rotate, and then drives the transmission part to transmit the kinetic energy converted from wind energy to the generator part, finally realizing the conversion of wind energy into electric energy.

[0041] See Figure 1 and Figure 3 Specifically, the installation main body of this embodiment includes an upper bearing cover 1, an upper bearing seat 4, a lower bearing cover 10, and a lower bearing seat 14. The upper bearing cover 1 and the upper bearing seat 4 form an upper accommodating cavity, and the lower bearing cover 10 and the lower bearing seat 14 form a lower accommodating cavity. The upper accommodating cavity and the lower accommodating cavity are used to install both ends of the rotating part, ensuring that the rotating part rotates along its axial direction without radial offset, which may cause equipment damage. Exemplarily, the upper bearing cover 1 and the upper bearing seat 4 can be connected into one body by screws, and the lower bearing cover 10 and the lower bearing seat 14 can be connected into one body by screws. In order to maximize weight reduction on the premise of meeting the operating strength, the upper bearing seat 4 and the lower bearing seat 14 can be set as welded assemblies.

[0042] Furthermore, mounting holes can be provided on the lower bearing seat 14 to fix the generator part (not shown in the figure) at the position of the mounting holes.

[0043] See Figure 1 and Figure 2 Specifically, the static wind collection part of this embodiment includes a plurality of static blades 8, and the plurality of static blades 8 are arranged and connected to the upper bearing seat 4 and the lower bearing seat 14. Preferably, the static blades 8 of this embodiment are arc - shaped blade profiles. There are six static blades 8 in total, and the six static blades 8 are arranged vertically and equidistantly. The upper and lower ends of each static blade 8 are respectively welded to the upper bearing seat 4 and the lower bearing seat 14.

[0044] The installation main body and the static blades 8 of this embodiment together form an outer turbine flow - guiding structure, which can concentrate and accelerate the natural wind without wind - direction limitation, thereby increasing the wind speed reaching the rotating part, enabling the wind power generation equipment of this embodiment to start even when the external wind force is small, increasing the input power of wind energy, and improving the power generation efficiency.

[0045] SeeFigure 2 , Figure 4 and Figure 5 , the rotating part of this embodiment includes a main shaft assembly, and both ends of the main shaft assembly are installed in the upper and lower accommodating chambers of the installation main body. Specifically, the main shaft assembly includes an upper shaft head 3, a main shaft body 5, and a lower shaft head 9 that are connected in sequence. The axes of the upper shaft head 3, the main shaft body 5, and the lower shaft head 9 are located on the same straight line, ensuring that the main shaft body rotates along its axis without radial offset. Exemplarily, the upper shaft head 3, the main shaft body 5, and the lower shaft head 9 are connected by welding. An upper alloy rolling bearing 2 is sleeved on the upper shaft head 3, and the upper alloy rolling bearing 2 is installed in the upper accommodating chamber. A lower alloy rolling bearing 11 is sleeved on the lower shaft head 9, and the lower alloy rolling bearing 11 is installed in the lower accommodating chamber. The alloy rolling bearing in this embodiment is a radial alloy rolling bearing, which has the characteristics of high temperature resistance, wear resistance, and dry friction without lubrication, and can be used for a long time without maintenance and replacement. Through the cooperation of the rolling bearing and the bearing seat structure, the main shaft assembly is constrained to rotate around its axis.

[0046] Further, referring to Figure 3 and Figure 5 , a permanent magnet suspension bearing 13 is also sleeved on the lower shaft head 9, and the permanent magnet suspension bearing 12 is also installed in the lower accommodating chamber. The permanent magnet suspension bearing 13 is located below the lower alloy rolling bearing 11, and the permanent magnet suspension bearing 12 and the lower alloy rolling bearing 11 are isolated by a spacer sleeve 12. Preferably, the permanent magnet suspension bearing 12 in this embodiment is a poly-magnetic permanent magnet suspension bearing.

[0047] Referring to Figure 5 , the rotating part of this embodiment adopts the poly-magnetic permanent magnet suspension bearing and non-lubricated alloy rolling bearing shaft system technology, which is a suspended drive shaft system supported by two alloy rolling bearings and one permanent magnet suspension bearing, which can greatly eliminate the influence of gravity and working load on the shaft system components, extend the working life of the drive shaft system components and improve the transmission efficiency. Specifically, the upper alloy rolling bearing 2 and the lower alloy sliding bearing 11 are used to bear the radial force generated by the transient wind force alternating load of the moving blades 7. The permanent magnet suspension bearing 13 and the lower alloy fixed bearing 11 are isolated from each other by a spacer sleeve 12, and the permanent magnet suspension bearing 13 can realize the non-contact power transmission of the drive shaft system components, eliminating the instability of suspension.

[0048] Referring to Figure 2 , further, the driving part includes a plurality of moving blades 7, and the plurality of moving blades 7 are arranged and connected to the main shaft body 5. The external static blades 8 and the internal moving blades 7 do not contact each other. Exemplarily, a plurality of moving blade connecting plates 6 corresponding to the moving blades 7 are provided on the main shaft body 5. The moving blade connecting plates 6 are installed on the main shaft body 5 by screws, and the moving blades 7 and the moving blade connecting plates 6 are welded together to ensure the stable connection between the above components, and the moving blades 7 can drive the main shaft assembly to rotate synchronously.

[0049] See also Figure 4 In this embodiment, the transmission part is a gear transmission system, the generator part has a rotor, and the output end of the gear transmission system is connected to the generator rotor. When the rotating part rotates under the drive of wind, the rotational kinetic energy is transmitted through the gear transmission system, and the output end of the gear transmission system drives the rotor of the generator part to rotate, and the kinetic energy is converted into electrical energy through the relative rotation between the rotor and the stator of the generator.

[0050] Exemplarily, the gear transmission system of this embodiment includes a large gear 17 and a small gear 16 that mesh with each other. The large gear 17 is connected to the lower shaft head 9 as a whole through a nut and a key connection. The rotation speed of the large gear 17 is consistent with that of the lower shaft head 9, and the rotation speed of the small gear 16 depends on the tooth ratio between the large gear 17 and the small gear 16. The small gear 16 outputs power to drive the generator part to work through the key connection.

[0051] The driving part, rotating part and transmission part of the present embodiment together constitute an inner wind wheel structure, which can greatly reduce the loss of wind energy due to wind resistance, thereby maximizing the utilization of wind energy.

[0052] During normal operation, natural wind with no wind direction restriction enters the outer turbine guide structure from the opening direction of the static blades 8, whereupon the natural wind is concentrated and accelerated, with the wind speed significantly increased, and then blows toward the working surface of the dynamic blades 7 in the inner wind wheel structure. Under the action of efficient wind force, the dynamic blades 7 drive the main shaft 5 to rotate, thereby driving the large gear 17 and the small gear 16 to output power to drive the generator part to generate electricity.

[0053] The embodiment of the present invention uses an efficient external turbine-wind collecting device to concentrate and accelerate natural wind without wind direction restrictions, so that the wind speed at the moving blades is significantly improved, which can make fuller use of wind energy resources and improve wind energy utilization. The use of an efficient internal turbine-driven wind wheel structure greatly reduces the loss of wind energy due to wind resistance, thereby maximizing the use of wind energy. The diversion-type vertical axis magnetic levitation wind turbine of this embodiment can be widely installed in various wind zones such as plateaus, low wind speeds, and steep mountains. It can be applied to wind-solar complementary street lamps, landscape lamps, lighthouses, off-grid power generation systems, etc., to achieve the development and utilization of wind energy in a wider range of breeze power generation.

[0054] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0055] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting the present application; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. A flow-guiding vertical axis magnetic levitation wind power generation device, characterized in that: include: Install the main body; A rotating part, the rotating part is rotatably mounted on the mounting body; A driving part, the driving part is fixedly connected to the rotating part, and the driving part is used to drive the rotating part to rotate by wind power; A transmission part, the transmission part is connected to the rotating part, the transmission part is connected to a generator part, and the transmission part is used to transmit the kinetic energy generated by the rotation of the rotating part to the generator part to convert it into electrical energy; A static wind collecting part is fixedly connected to the installation body, and is used for collecting and accelerating natural wind and then directing it to the driving part.

2. The wind power generation equipment according to claim 1, characterized in that: The static wind collecting part includes a plurality of stationary blades, and the plurality of stationary blades are arranged and connected to the installation body.

3. The wind power generation equipment according to claim 1, characterized in that: The two ends of the installation body are respectively provided with accommodating chambers, the rotating part comprises a main shaft assembly, and the two ends of the main shaft assembly are installed in the accommodating chambers.

4. The wind power generation equipment according to claim 3, characterized in that: The two ends of the main shaft assembly are respectively sleeved with bearing components, and the bearing components are respectively installed in the accommodating chambers.

5. The wind power generation equipment according to claim 4, characterized in that: The bearing element comprises a radial alloy rolling bearing.

6. The wind power generation equipment according to claim 4, characterized in that: A permanent magnetic suspension bearing is sleeved on the bottom end of the main shaft assembly, and the permanent magnetic suspension bearing is located in the accommodating chamber below the installation body.

7. The wind power generation equipment according to claim 6, characterized in that: A spacer sleeve is arranged between the permanent magnetic suspension bearing and the bearing component close to the permanent magnetic suspension bearing.

8. The wind power generation equipment according to claim 1, characterized in that: The driving part includes a plurality of moving blades, and the plurality of moving blades are arranged and connected to the rotating part.

9. The wind power generation equipment according to claim 8, characterized in that: The rotating part is provided with a plurality of moving blade connecting plates corresponding to the moving blades, and the moving blades are mounted on the moving blade connecting plates.

10. The wind power generation equipment according to claim 1, characterized in that: The transmission part includes a gear transmission system, the generator part includes a rotor, and an output end of the gear transmission system is connected to the rotor.

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