Wind-driven rotary barrel power generation device and use method thereof

Abstract

The invention provides a wind-driven rotary barrel power generation device and a using method thereof. The wind-driven rotary barrel power generation device comprises a barrel, a plurality of ventilation holes obliquely formed in the tangential direction are formed in the periphery of the barrel, and the ventilation holes guide air flow to form turbulent flow in the barrel and generate directional thrust to push the barrel to rotate; the rotating shaft is fixed in the barrel body and is arranged at the central axis position of the barrel body; the generator is connected with the rotating shaft; the bottom of the supporting bracket is fixedly connected with the base, a bearing seat is fixed to the top of the supporting bracket, and the rotating shaft is connected with the bearing seat through a bearing. According to the invention, the plurality of ventilation holes which are obliquely arranged in the tangential direction are formed in the surface of the hollow cylindrical barrel body, so that directional thrust can be formed when wind power penetrates through the barrel body, and the driving effect of airflow on rotation of the barrel body is effectively enhanced, so that the starting wind speed of the device is reduced, and spontaneous starting can be realized under the condition that the wind speed is as low as 1.5 m / s. The momentum transmission efficiency in the wind power conversion process is ensured through the direction design of the ventilation holes, and the self-adaptive variable wind direction capacity is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation equipment, and in particular to a rotating barrel body power generation device driven by wind energy and its usage method. Background Art

[0002] With the continuous development of renewable energy technologies, especially the efficient utilization of wind energy in low-wind-speed environments has become a trend, and it is increasingly applied to scenarios such as power supply in remote areas, energy supplementation for urban microgrids, building integrated power generation (BIPV), and power supply for agricultural equipment. Existing micro and small wind power generation devices generally adopt the structure of horizontal-axis wind turbines or vertical-axis wind turbines. Among them, vertical-axis wind turbines are gradually attracting attention because they do not rely on a wind direction adjustment mechanism and have stronger adaptability in complex terrains or areas with variable wind directions.

[0003] However, traditional vertical-axis wind turbines have the following problems: the blade structure is complex, with high manufacturing and transportation costs, and limited application scope; the starting wind speed is relatively high, and the starting performance is poor in low-wind-speed environments, making it difficult to operate stably; most small wind power devices fail to effectively combine aerodynamic effects, resulting in low energy capture efficiency and the absence of a self-rotation enhancement mechanism. Therefore, there is an urgent need for a wind power generation device with a reasonable structure, excellent starting performance, strong adaptability, and high efficiency in low-wind-speed environments, which can work efficiently under low wind speeds, multiple wind directions, and complex site conditions, has good modular design and manufacturing adaptability, and is especially suitable for deployment in multiple scenarios such as urban gaps, rooftops, and agricultural facilities, providing a stable and reliable green power source for the microgrid system. Summary of the Invention

[0004] The purpose of the present invention is to provide a rotating barrel body power generation device driven by wind energy and its usage method, which can work efficiently under low wind speeds and variable wind direction conditions, and at the same time has the characteristics of good starting performance, simple structure, strong adaptability, and low cost.

[0005] According to one purpose of the present invention, a rotating barrel body power generation device driven by wind energy is provided, including:

[0006] A barrel body, which is in a hollow cylindrical structure. A plurality of ventilation holes are arranged obliquely in the tangential direction on the surface of the barrel body. The inlet of the ventilation hole faces the outside of the barrel body, and the outlet of the ventilation hole faces the rotation direction of the barrel body. The ventilation holes guide the air flow to form a turbulent flow inside the barrel body and generate a directional thrust to push the barrel body to rotate;

[0007] A rotating shaft system, including a rotating shaft, which is fixed inside the barrel body, and the rotating shaft is arranged at the central axis position of the barrel body;

[0008] The power generation assembly includes a generator, which is connected to the rotating shaft. The generator outputs direct current voltage or alternating current voltage for external devices to use.

[0009] The support device includes a support bracket. The bottom of the support bracket is fixedly connected to the base, and a bearing seat is fixed at the top of the support bracket. The rotating shaft is connected to the bearing seat through a bearing.

[0010] Furthermore, a wind guide cover is provided at the air inlet of the barrel body, and a streamlined fairing or grille is provided at the air outlet of the barrel body.

[0011] Furthermore, a grille is provided at the air inlet of the barrel body.

[0012] Furthermore, the rotating shaft is connected to the barrel body through a reinforcing rib built inside the barrel body.

[0013] Furthermore, the support bracket is provided with a height adjustment device.

[0014] Furthermore, the inclination angle of the ventilation holes is 30° to 45°, so that the airflow can form a tangential component force when passing through, pushing the barrel body to rotate.

[0015] Furthermore, the diameter of the ventilation holes is 1 to 10 cm.

[0016] Furthermore, the ventilation holes are distributed in a spiral shape, a symmetric strip shape or a variable density distribution along the barrel body.

[0017] Furthermore, the shape of the ventilation holes is a round hole, an oblong hole or a slit hole.

[0018] Furthermore, a screen is provided inside the ventilation holes.

[0019] According to another object of the present invention, the present invention provides a usage method of the above-mentioned wind energy-driven rotating barrel body power generation device, including the following steps:

[0020] Wind blows into the barrel body from any direction. Since the barrel body is a hollow structure, part of the airflow enters the inside of the barrel body, forming a turbulent flow inside the barrel body.

[0021] When the airflow passes through the inclined ventilation holes, it will be directed and ejected tangentially, generating a reaction force; the inclination angle and arrangement direction of the ventilation holes cause the ejected airflow to generate a continuous tangential moment on the barrel body, forming a rotation trend.

[0022] The barrel body rotates around the central axis and drives the rotating shaft connected to the barrel body to rotate together; the rotating shaft drives the generator rotor to move to generate electric energy; the generated electric energy is supplied to the load or energy storage through the rectification and voltage stabilization system.

[0023] As the barrel rotates, a low-pressure area is formed inside the barrel, enhancing the trend of air flow entering; this leads to an air inhalation - ejection - rotation - inhalation cycle, forming a pneumatic positive feedback; and it can start generating electricity stably under medium and low wind speed conditions.

[0024] The technical solution of the present invention sets a plurality of ventilation holes arranged tangentially and obliquely on the surface of the hollow cylindrical barrel, enabling the wind to form a directional thrust when passing through the barrel, effectively enhancing the driving effect of the air flow on the rotation of the barrel, thereby reducing the starting wind speed of the device. It can achieve self-starting under the condition that the wind speed is as low as 1.5 m / s, which is better than the starting wind speed of more than 2.5 m / s required by most traditional small wind turbines. The direction design of the ventilation holes ensures the momentum transfer efficiency during the wind power conversion process and has the ability to adapt to variable wind directions, improving the working stability of the device under complex wind conditions. Brief Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic structural diagram of an embodiment of the present invention;

[0027] Figure 2 It is another schematic structural diagram of an embodiment of the present invention;

[0028] Figure 3 It is a schematic structural diagram of the connection structure between the barrel and the rotating shaft of an embodiment of the present invention;

[0029] Figure 4 It is a sectional view of an embodiment of the present invention;

[0030] Figure 5 It is a schematic structural diagram of the ventilation holes distributed symmetrically in bands in an embodiment of the present invention;

[0031] Figure 6 It is a schematic structural diagram of the ventilation holes distributed in a spiral pattern in an embodiment of the present invention;

[0032] Figure 7 It is a schematic structural diagram of the ventilation holes distributed with variable density in an embodiment of the present invention;

[0033] Figure 8 It is a schematic structural diagram of the height adjustment device of the support bracket in an embodiment of the present invention;

[0034] In the figure, 1 is the barrel body; 2 is the ventilation hole; 3 is the rotating shaft; 4 is the reinforcing rib; 5 is the bearing seat; 6 is the generator; 7 is the air guide cover; 8 is the support bracket; 9 is the height adjustment device. Specific Embodiment

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work fall within the protection scope of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing 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 to the present invention.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined. In addition, the terms "installation", "connection", and "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 communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Embodiment 1

[0039] As Figures 1 - 8 shown:

[0040] A wind energy-driven rotating barrel power generation device, comprising:

[0041] The barrel body 1 is of a hollow cylindrical structure. The surface of the barrel body 1 is treated by chromium plating or nitriding to improve wear resistance. A plurality of ventilation holes 2 are arranged obliquely along the tangential direction around the barrel body 1. The inlet of the ventilation hole 2 faces the outside of the barrel body 1, and the outlet of the ventilation hole 2 faces the rotation direction of the barrel body 1. The design of the ventilation hole 2 can guide the air flow to form a turbulent flow in the barrel body 1 and generate a directional thrust to push the barrel body 1 to rotate in a set direction.

[0042] Specifically, in this embodiment, the barrel body 1 is made of transparent polycarbonate or anodized aluminum plate material and has the ability to resist wind pressure. The ventilation holes 2 are evenly distributed around the barrel body 1, and the inclination angle of the ventilation holes 2 is 30° to 45°, so that the air flow can form a tangential component force to push the barrel body 1 to rotate when passing through.

[0043] The rotating shaft 3 system. There is a rotating shaft 3 inside the barrel body 1. The rotating shaft 3 is arranged at the central axis position of the barrel body 1. The rotating shaft 3 is connected to the barrel body 1 through a reinforcing rib 4 built inside the barrel body 1 to ensure stability and strength. It is rigidly connected to the flange through the internal reinforcing rib 4, and the flange is then connected to the rotating shaft 3 through bolts. The other end of the rotating shaft 3 is provided with a spherical roller bearing or a ball bearing to ensure the concentricity and balance of rotation. The end head of the rotating shaft 3 penetrates into the inside of the bearing seat 5, and the bearing is pressed into the hole and locked to ensure the smoothness of rotation. The bearing seat 5 is provided with a lubricating oil injection hole and a sealing ring.

[0044] The power generation component adopts a permanent magnet synchronous generator (PMSG) or a brushless DC generator (BLDC) with low speed and high efficiency. The generator 6 is connected to the rotating shaft 3 through a coupling or a synchronous pulley, and outputs a DC voltage (12V / 24V) or an AC voltage (220V) for external equipment to use.

[0045] The air guiding device is provided with an air guiding cover 7 to guide the air flow into the barrel body 1 by using the wind pressure and stabilize the air flow path to avoid reverse turbulent flow. The air guiding cover 7 is made of transparent polycarbonate or anodized aluminum plate material and has the ability to resist wind pressure.

[0046] The rectifying device includes a rectifier, a controller and an energy storage unit, and regulates the generated electric energy through the rectifier, the controller and the energy storage unit to ensure the stable output of the electric energy.

[0047] It also includes a supporting device. The supporting device includes a supporting bracket 8. The supporting bracket 8 is a metal bracket to support the rotating shaft 3 and the barrel body 1. The bearing seat 5 is installed on the supporting bracket 8. The supporting bracket 8 is a frame structure formed by welding angle steel or square pipes. The bottom of the supporting bracket 8 is fixed on a metal base or a concrete base through anchor bolts to ensure the stability of the equipment. The supporting bracket 8 is provided with a device for adjusting the height to meet the requirements of different installation sites. The generator 6 is fixed on the side base of the supporting bracket 8 and is connected to the rotating shaft 3 through a coupling or a belt.

[0048] The rotating shaft 3 and the barrel body 1 of the present invention are stably suspended through a supporting device, and are connected with a permanent magnet generator 6. When the barrel body 1 rotates under the action of wind, the rotating shaft 3 is driven to rotate, thereby driving the permanent magnet generator 6 to generate electric energy. The electric energy management module electrically connected to the generator 6 uses a rectifying device to rectify, stabilize the voltage and store the output electric energy. By optimizing the inclination angle, quantity and distribution mode of the ventilation holes 2, and combining the application of lightweight materials and low-friction support structures, the present invention can achieve stable self-rotation and power generation even at low wind speeds, and has the advantages of simple structure, low starting wind speed, high power generation efficiency, wide application scenarios, etc., and is suitable for various application scenarios such as outdoor microgrids, independent power supply in remote areas, and auxiliary power supply for intelligent equipment.

[0049] Embodiment 2

[0050] The structure of this embodiment is basically the same as that of Embodiment 1. The specific structure of the wind energy-driven rotating barrel power generation device will be specifically described in this embodiment:

[0051] There can be various design schemes for the main structure of the present invention. The detailed structures of each structure are described as follows:

[0052] I. Structure of the barrel body 1

[0053] As Figures 1 - 4 shown, the barrel body 1 is a hollow cylindrical (tubular) structure with openings at both ends. The air outlet end can also be closed according to needs, and only the air inlet end is retained. The axial direction of the barrel body 1 is the direction of the rotating shaft 3 line, and a plurality of ventilation holes 2 are regularly arranged along the surface of the barrel body 1.

[0054] Design of the ventilation holes 2:

[0055] As Figure 4 shown, the ventilation holes 2 are arranged at an inclination angle of 5° to 45° relative to the radial tangent direction, and their arrangement on the surface of the barrel body 1 can adopt a spiral type, staggered arrangement or strip-shaped group arrangement. The layout direction of the ventilation holes 2 determines the direction of the ejected air flow, thereby affecting the magnitude of the reaction torque received by the barrel body 1.

[0056] Structure of the ventilation holes 2:

[0057] Shape: The ventilation holes 2 can be round holes (conducive to forming), oblong holes (enhancing the air guiding effect) or slit holes (enhancing the directional jet flow);

[0058] Size: The diameter of the ventilation holes 2 is generally 1 to 5 cm, and is optimized according to the size of the barrel body 1 and the target wind speed;

[0059] Local reinforcement of materials: A reinforcing ring can be set at the edge of the ventilation holes 2 or anti-cracking materials can be coated to prevent breakage caused by stress concentration;

[0060] Prevention of foreign objects: A screen structure can be set inside the ventilation holes 2 to prevent insects or debris from entering the barrel body 1.

[0061] Connection of the barrel body 1:

[0062] The barrel body 1 is connected to the rotating shaft 3 through a circle of built-in reinforcing ribs 4. The connection method is welded flange, mechanical lock or threaded sleeve connection to ensure uniform transmission of rotation force and avoid eccentric vibration.

[0063] Specifically, the design scheme of the two open ends (air inlet and air outlet) of the barrel body 1 includes three design schemes, namely Scheme A, Scheme B and Scheme C, where:

[0064]

Scheme A

[0065] Air inlet end opening: It expands in a flared shape (the diameter is about 1.3 - 1.5 times the diameter of the barrel body 1) to converge the air flow into it;

[0066] Air outlet end opening: It has the same diameter as the barrel body 1 or is slightly reduced, which is conducive to forming a negative pressure effect and promoting the air flow to escape through the holes in the barrel wall;

[0067] Or the air outlet end is closed: There are openings provided at the air outlet end, so that the air flow drives the barrel body to rotate while flowing out.

[0068] Scientific basis: Imitating the Venturi tube, the velocity increases and the pressure decreases in the fluid contraction area, enhancing the kinetic energy of the air flow in the inner cavity.

[0069] Advantages: Suitable for medium wind speed areas, it can effectively rectify the flow and increase the rotation speed.

[0070] Applications: Strong directional wind source places such as under bridges and at the front edge of roofs.

[0071]

Scheme B

[0072] Both the air inlet end and the air outlet end are contracted into tapered openings (such as funnels);

[0073] The middle barrel body 1 is a cylindrical shape with equal diameter;

[0074] When the air flow enters from one end, the flow velocity is increased due to compression, and a high-kinetic-energy rotating flow is formed inside the barrel body 1.

[0075] Advantages: Improve the air intake speed, suitable for areas with low but stable wind speed;

[0076] Applications: Urban building gaps, roof eaves wind channels.

[0077]

Scheme C

[0078] The air inlet is set as a plurality of arc-shaped or inclined grille structures to prevent debris from entering and improve safety;

[0079] The air outlet is set with a semi-closed structure, only ventilation slots are provided, which enhances the internal pressure of the barrel 1;

[0080] It can increase the "vortex feeling" and improve the jet airflow.

[0081] Advantages: Suitable for outdoor environments with high requirements for dust resistance, blades, and insect prevention;

[0082] Applications: Agricultural equipment, rooftop wind energy collectors, small power supplement devices.

[0083] Specifically, the rotation of the barrel 1 depends on the reaction force of the jet flow, and the design of the jet orifice of the ventilation hole 2 is crucial. The following are the design schemes of the ventilation hole 2, including the ventilation hole shape design, ventilation hole arrangement design, ventilation hole inclination angle design, and comprehensive recommended parameters, where:

[0084]

Ventilation hole 2 shape design

[0085] Table 1 Ventilation hole 2 shape design

[0086]

[0087]

Ventilation hole 2 arrangement

[0088] ① Spiral hole layout

[0089] As Figure 6 shown, the ventilation holes 2 are arranged along the spiral path of the barrel 1 to simulate "vortex propulsion"; the spiral angle is about 30° - 45°; it can form a continuous airflow driving torque.

[0090] Advantages: The rotation is smoother and the start is easier; Applicable scenarios: Continuous low wind or weak wind environments.

[0091] ② Symmetrical strip hole layout

[0092] As Figure 5 shown, the circumference of the barrel 1 is divided into several "jet belts", and there are multiple rows of holes in each belt; arranged symmetrically up and down to maintain dynamic balance; different hole diameters can be set in each belt to achieve step-by-step jet propulsion.

[0093] Advantages: The kinetic energy is balanced and the structure is simple; Applicable scenarios: Devices with unified manufacturing requirements and mass production.

[0094] ③ Variable density hole layout

[0095] As Figure 7 shown, the hole density at the front end of the barrel 1 is smaller and the density at the tail end is increased; it can create a "pressure difference differential" to strengthen the self-rotation effect; similar to the rocket propulsion concept, suitable for the acceleration stage.

[0096] Advantages: Assist in starting and reach speed quickly; Applicable scenarios: Wind energy fluctuates greatly and a fast response system is required.

[0097]

Ventilation hole inclination angle design

[0098] Table 2 Ventilation hole 2 bevel design

[0099]

[0100]

Comprehensive recommended parameters

[0101] Table 3 Comprehensive recommended parameters

[0102]

[0103] II. Support device

[0104] Structural description:

[0105] The support device includes a support bracket 8, a support rotating shaft 3 and a barrel body 1, providing a rigid fixed point for the rotation axis.

[0106] Structural details of the support bracket 8: The main body of the support bracket 8 adopts an angle steel or square tube welded frame structure; a rotating shaft 3 mounting bearing seat 5 is provided on the support bracket 8, and the bottom plate of the bearing seat 5 is connected to the support bracket 8 by a flange plate screw connection method; the bottom of the support bracket 8 is connected to the concrete foundation or metal base through anchor bolts; shock-absorbing rubber pads or damping springs can be added to absorb the impact force and vibration during rotation.

[0107] Adjustable height design: As Figure 8 shown, a height adjustment device 9, such as a threaded lifting screw rod and a limit pin structure, can be set on the support bracket 8 to adjust the height of the central axis of the barrel body 1 to adapt to different installation sites.

[0108] III. Rotating shaft structure

[0109]

Main structure of the rotating shaft 3

[0110] The rotating shaft 3 is the central axis passing through the barrel body 1. The material of the rotating shaft 3 is high-strength steel or stainless steel after quenching and tempering heat treatment. The diameter of the rotating shaft 3 is 20 - 50 mm, with good torsional stiffness and fatigue life. The surface of the rotating shaft 3 is treated by chrome plating or nitriding to improve wear resistance.

[0111]

Rotating shaft connection method

[0112] The middle part of the rotating shaft 3 is connected to the inner wall of the barrel body 1 through a reinforcing rib 4 arranged on the inner wall of the barrel body 1 to ensure the concentricity and balance of the rotation of the barrel body 1.

[0113]

Bearing system

[0114] The other end of the rotating shaft 3 is provided with a bearing seat 5, using ball bearings or self-aligning roller bearings; the bearing seat 5 is provided with a lubricating oil injection hole and a sealing ring to extend the service life; some structures are provided with waterproof covers to prevent rain or dust from entering the bearing cavity.

[0115] IV. Power Generation Component

[0116]

Structure and Principle

[0117] The power generation part adopts a permanent magnet synchronous generator (PMSG) or a brushless DC generator (BLDC) with low rotational speed and high efficiency. Its output shaft is connected to the rotating shaft 3 through an elastic coupling or a synchronous pulley.

[0118] Generator 6 parameters: Rated power: 100W - 2kW; Starting speed: 50 - 200rpm; Output voltage: 12V / 24V (DC); It can also output 220V AC through an inverter.

[0119]

Connection and Installation

[0120] The generator 6 is fixed on the support bracket 8, and the installation position can be adjusted to adjust the coupling or belt tension. The wiring terminal is provided with a waterproof joint and is connected to the rectifier, controller, and energy storage unit.

[0121] V. Air Duct Device and Rectifying Device

[0122]

Air Duct Cover

[0123] A conical or flared air duct cover 7 is set at the inlet end to guide the external air flow into the barrel body 1; the material is transparent polycarbonate or anodized aluminum plate, with wind pressure resistance; it is fixed to the flange of the barrel body 1 through bolts and can also be quickly disassembled for maintenance.

[0124]

Outlet Rectifying Cover

[0125] A streamline rectifying cover or grille can be set at the other end of the barrel body 1 to stabilize the air flow path; prevent the reverse turbulent flow from generating resistance to rotation, and at the same time play a protective role.

[0126]

Louver Wind Direction Adjustment Device

[0127] An automatic deflection louver air outlet is set at the inlet of the barrel body 1 to achieve automatic wind alignment using the wind force; it is suitable for application in complex terrain areas with frequent wind direction changes.

[0128] VI. Detailed Explanation of Components and Function Description

[0129] Table 4 Detailed Explanation of Components and Function Description

[0130]

[0131]

[0132] VII. Detailed Description of Connection Modes

[0133] 1.

Air Duct Cover and Barrel Body

[0134] Connection method: Installed at the inlet end of the barrel 1 through threaded connection or snap-lock design of the card slot;

[0135] Structure: Polycarbonate or lightweight aluminum alloy can be used, and an outward-turned edge is set to enhance the strength of the air guide cover 7;

[0136] Functional coordination: Form an air guide channel to guide the air flow to vertically flow into the central area of the barrel 1.

[0137] 2.

Barrel and ventilation holes

[0138] Connection method: The ventilation hole 2 is an integral mold-opening structure of the barrel 1, or is precisely drilled through laser cutting;

[0139] Hole design: The inclination angle is set at 30° - 45°, and the tangential direction is consistent with the rotation direction of the barrel 1 to prevent turbulence;

[0140] Action mechanism: The air sprays out through the holes, and due to the hole angle, a tangential component force is generated to push the barrel 1 to rotate.

[0141] 3.

Connection between the barrel and the rotating shaft

[0142] Connection method: Rigidly connected through the internal reinforcing rib 4 and the flange, and the flange is then connected to the rotating shaft 3 through bolts;

[0143] Fixing details: Fixed symmetrically with at least 4 high-strength stainless steel bolts, or strengthened positioning is adopted through axial key connection;

[0144] Material recommendation: The rotating shaft 3 is selected from 40Cr quenched and tempered steel or stainless steel 304, and the flange can be welded with aluminum alloy or carbon steel.

[0145] 4.

Rotating shaft and bearing housing

[0146] Connection method: The end head of the rotating shaft 3 penetrates into the inside of the bearing housing 5, and the bearing is pressed into the hole and locked;

[0147] Bearing selection: Spherical roller bearings or double-row ball bearings are recommended to prevent eccentric loading;

[0148] Fitting relationship: The bearing is fixed by interference fit or axial snap ring to prevent axial slip.

[0149] 5.

Bearing housing and support structure

[0150] Connection method: Rigidly connected by bolts or fixed by welding on the top of the metal bracket;

[0151] Installation requirements: The installation surface needs to be horizontal to avoid vibration or eccentric wear of the rotating shaft 3 caused by eccentricity.

[0152] 6.

Connection between the rotating shaft and the generator

[0153] Connection method:

[0154] If a direct-drive generator 6 is adopted: Use a rigid coupling.

[0155] If a remotely located generator 6 is adopted: Use a pulley drive, and the belt is a non-slip heat-resistant V-belt.

[0156] Function of the transmission device: Buffer mechanical shock, isolate vibration, and improve the overall machine life.

[0157] 7.

Support Structure and Base

[0158] Connection method: It can be directly fixed with embedded anchor bolts, or fastened with nuts and steel backing plates.

[0159] Base material selection: It is recommended to use a concrete base (heavy load) or a steel base plate with counterweight (portable device).

[0160] Windproof design: The base area should be more than twice the projected area of the device to ensure wind resistance stability.

[0161] 8.

Generator Output Interface

[0162] Interface standard: The DC output is 12V / 24V, or the AC output is equipped with a rectification module.

[0163] Supporting electronic control: Includes a voltage regulator, a battery energy storage module, and an inverter (grid-connected / off-grid optional).

[0164] Wiring method: The cable passes through the bearing side and uses a slip ring structure to avoid winding.

[0165] 9.

Material and Structure Design

[0166] Table 5 Material and Structure Design

[0167]

[0168] VIII. The working principle of the present invention is described as follows:

[0169]

Rotary Drive Mechanism

[0170] Wind blows into the barrel 1 from any direction; since the barrel 1 has a hollow structure, part of the air flow enters the interior of the barrel 1 and forms a turbulent flow inside the barrel 1; when the air flow passes through the inclined ventilation holes 2, it will be guided to be ejected tangentially, generating a reaction force; the inclination angle and arrangement direction of the ventilation holes 2 cause the ejected air flow to generate a continuous tangential moment on the barrel 1, forming a rotational tendency; the barrel 1 rotates around the central axis and drives the rotating shaft 3 connected to the barrel 1 to rotate together; the rotating shaft 3 drives the rotor of the generator 6 to move, generating electric energy; the generated electric energy is supplied to the load or energy storage through the rectification and voltage stabilization system.

[0171]

Self-Enhancement Mechanism

[0172] As the barrel body 1 rotates, a low-pressure area is formed inside the barrel body 1, enhancing the tendency of air flow to enter; resulting in an "air inhalation - ejection - rotation - inhalation" cycle, forming a pneumatic positive feedback; the rotation speed of the barrel body 1 has a non-linear relationship with the wind speed; it can also start generating electricity stably under medium and low wind speed conditions (1.5 - 3.5 m / s).

[0173] IX. The installation method of the wind energy-driven rotating barrel body power generation device of the present invention is as follows:

[0174] 1. On-site foundation preparation:

[0175] Pour a concrete base and embed anchor bolts; or use a precast metal base plate for quick installation.

[0176] 2. System assembly:

[0177] Fix the support bracket 8, install the rotating shaft 3, and lubricate the bearings; connect and fix the barrel body 1 and the rotating shaft 3; install the generator 6 and the wind guide cover 7, and complete the circuit connection.

[0178] 3. Connect to the load or energy storage system:

[0179] The output end can be connected to a 12V / 24V battery, LED street lamp, sensor system; or configure a small inverter to output 220V alternating current and connect to the microgrid.

[0180] 4. Operation and maintenance:

[0181] No manual operation is required, and it starts automatically by the wind; regularly check the bearing lubrication, structural fastening, and power generation system interfaces; the whole machine can be maintained once a year to extend its service life.

[0182] The main purpose of the present invention is to provide a wind energy-driven rotating barrel body power generation device to solve the problems of complex structure, high starting wind speed, limited application range, and low energy utilization efficiency of existing small wind power generation equipment. The structure of the present invention is compact, suitable for a variety of natural environments, especially suitable for open areas with low wind speed and variable wind directions such as coasts, deserts, and mountains. It can work efficiently under low wind speed and variable wind direction conditions, and at the same time has the characteristics of good starting performance, simple structure, strong adaptability, and low cost. It is particularly suitable for application scenarios such as urban microgrid energy supplementation, rooftop wind energy collectors, and agricultural equipment.

[0183] The wind energy-driven rotating barrel power generation device proposed by the present invention is provided with a plurality of ventilation holes 2 arranged tangentially and obliquely on the surface of the hollow cylindrical barrel 1, so that when the wind passes through the barrel 1, a directional thrust can be formed, effectively enhancing the driving effect of the air flow on the rotation of the barrel 1, thereby reducing the starting wind speed of the device. It can achieve self-starting under the condition that the wind speed is as low as 1.5 m / s, which is better than the starting wind speed of more than 2.5 m / s required by most traditional small wind turbines. The direction design of the ventilation holes 2 ensures the momentum transfer efficiency during the wind energy conversion process and has the ability to adapt to variable wind directions, improving the working stability of the device under complex wind conditions.

[0184] In addition, the device of the present invention has a compact structure and a high degree of component integration, reducing the dependence on complex mechanisms such as traditional wind wheels and yaw systems. While reducing the system complexity and operation and maintenance costs, it improves the environmental adaptability of the whole machine. The hollow barrel 1 made of a low-friction support structure and lightweight materials significantly reduces the system inertia, enabling the device to maintain a high response sensitivity even under intermittent wind speeds. Through the efficient matching with the permanent magnet generator 6 and the power management module, the power generation efficiency of the device reaches 20-25% in the wind speed range of 3-5 m / s, which is better than the energy conversion rate of about 15-20% of traditional micro wind power systems under the same wind speed conditions.

[0185] In summary, the present invention has significant advantages in terms of structural design, starting performance, energy utilization efficiency, and environmental adaptability, and is particularly suitable for distributed power generation requirements in outdoor environments such as coasts, deserts, and mountains with low wind speeds and variable wind directions.

[0186] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention 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 for 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 embodiments of the present invention.

Claims

1. A wind energy-driven rotating barrel power generation device, characterized in that, Comprising: A barrel body, which is of a hollow cylindrical structure. A plurality of ventilation holes are arranged obliquely along the tangential direction on the surface of the barrel body. The inlet of the ventilation hole faces the outside of the barrel body, and the outlet of the ventilation hole faces the rotation direction of the barrel body. The ventilation holes guide the air flow to form a turbulent flow inside the barrel body and generate a directional thrust to push the barrel body to rotate; A rotating shaft system, including a rotating shaft, which is fixed inside the barrel body, and the rotating shaft is arranged at the central axis position of the barrel body; A power generation component, including a generator, which is connected to the rotating shaft, and the generator outputs a DC voltage or an AC voltage for external equipment to use; A support device, including a support bracket. The bottom of the support bracket is fixedly connected to a base, and a bearing seat is fixed at the top of the support bracket. The rotating shaft is connected to the bearing seat through a bearing.

2. The wind energy-driven rotating barrel power generation device according to claim 1, wherein A wind guide cover is provided at the air inlet of the barrel body, and a streamline fairing or a grille is provided at the air outlet of the barrel body.

3. The wind energy-driven rotating barrel power generation device according to claim 1, wherein A grille is provided at the air inlet of the barrel body.

4. The wind energy-driven rotating barrel power generation device according to claim 1, characterized in that The support bracket is provided with a height adjustment device.

5. The wind energy-driven rotating barrel power generation device according to claim 1, wherein The inclination angle of the ventilation hole is 30° to 45°, so that the air flow can form a tangential component force when passing through to push the barrel body to rotate.

6. The wind energy-driven rotating barrel power generation device according to claim 1, characterized in that, The diameter of the ventilation hole is 1 to 10 cm.

7. The wind energy-driven rotating barrel power generation device according to claim 1, wherein The ventilation holes are distributed in a spiral shape, a symmetric strip shape or a variable density distribution along the barrel body.

8. The wind energy-driven rotating barrel power generation device according to claim 1, characterized in that, The shape of the ventilation hole is a round hole, an oblong hole or a slit hole.

9. The wind energy-driven rotating barrel power generation device according to claim 1, wherein A screen is provided inside the ventilation hole.

10. The wind energy-driven rotating barrel power generation device according to any one of claims 1-9, characterized in that, According to another object of the present invention, the present invention provides a usage method of the above-mentioned wind energy-driven rotating barrel body power generation device, including the following steps: Wind blows into the barrel body from any direction. Since the barrel body is of a hollow structure, part of the air flow enters the inside of the barrel body to form a turbulent flow inside the barrel body; When the air flow passes through the obliquely arranged ventilation holes, it will be guided to spray out tangentially to generate a reaction thrust; the inclination angle and the arrangement direction of the ventilation holes cause the sprayed air flow to generate a continuous tangential moment on the barrel body to form a rotation trend; The barrel body rotates around the central axis and drives the rotating shaft connected to the barrel body to rotate together; the rotating shaft drives the generator rotor to move to generate electric energy; the generated electric energy is supplied to a load or stored energy through a rectification and voltage stabilization system; As the barrel body rotates, a low-pressure area is formed inside the barrel body, enhancing the trend of air flow entering; resulting in an air intake - ejection - rotation - intake cycle, forming a pneumatic positive feedback; starting and generating electricity stably under medium and low wind speed conditions.

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