Tidal current energy generation device

Abstract

The application relates to a flow-guiding type tidal current power generation device which comprises a supporting column, a flow-guiding structure and a plurality of rotating assemblies. The bottom end of the supporting column is provided with a power generation structure, and the outer wall surface is provided with a plurality of water outlets at intervals in the circumferential direction. The flow-guiding structure comprises a water inlet and a water storage device. The water inlet is installed at the top end of the supporting column, and the water storage device is installed in the supporting column. The water inlet is connected to the top end of the water storage device through a pipeline, the bottom end of the water storage device is connected to the plurality of water outlets through pipelines, and one-way valves are arranged at the two ends of the water storage device. The bottom end of the rotating assembly is connected to the power generation structure, a blade assembly is arranged on the rotating assembly, and the plurality of rotating assemblies are arranged at intervals in the circumferential direction along the outer circle of the supporting column. The water outlet is directed towards the gap between every two adjacent blade assemblies. The device stores water flow through the water storage device and discharges the water flow towards the gap between two adjacent blade assemblies, so as to drive the blade assembly to rotate, and the self-starting ability is stronger at low flow speed.

Description

Technical Field

[0001] This invention relates to the field of tidal energy power generation equipment technology, and in particular to a tidal energy power generation device with a guiding flow. Background Technology

[0002] With the dwindling reserves of non-renewable energy, the world is paying increasing attention to the development of new energy sources, among which tidal energy is gaining significant attention as a green and renewable energy source.

[0003] Tidal energy generation refers to the process by which the blades of a water turbine rotate at high speed under the impact of tidal currents, and then drive an electric motor through a transmission mechanism to generate electricity, ultimately converting kinetic energy into electrical energy. Generally speaking, traditional tidal energy generation devices are divided into two types: horizontal axis and vertical axis. Horizontal axis tidal energy generation devices have a more complex structure and require commutation or pitch control mechanisms to adapt to the bidirectional characteristics of tidal currents, making them unsuitable for deep-sea environments where the water flow is predominantly horizontal. Therefore, vertical axis tidal energy generation devices are generally used to capture tidal energy from the seabed.

[0004] However, vertical axis tidal power generation devices have disadvantages such as low starting torque and poor self-starting capability at low flow rates. Summary of the Invention

[0005] Therefore, it is necessary to provide a current-guided tidal energy generation device that has a stronger self-starting capability at low flow velocities compared to the traditional vertical axis tidal energy generation structure, in order to address the above-mentioned technical problems.

[0006] A current-guided tidal energy generation device, comprising:

[0007] The support column has a power generation structure installed at the bottom, and multiple water outlets are spaced around the circumference on the outer wall.

[0008] The flow guiding structure includes an inlet and a water storage tank. The inlet is installed at the top of the support column, and the water storage tank is installed inside the support column. The inlet is connected to the top of the water storage tank through a pipe, and the bottom of the water storage tank is connected to the multiple outlets through pipes. A one-way valve is provided at both ends of the water storage tank.

[0009] Multiple rotating components, the bottom end of which is connected to the power generation structure, and a blade assembly is fitted onto each rotating component. The multiple rotating components are spaced apart along the outer circumference of the support column.

[0010] The outlet faces the gap between each pair of adjacent blade assemblies.

[0011] In one embodiment, a spring-loaded energy storage structure is also installed at the top of the support column. The spring-loaded energy storage structure is connected to the top of the rotating component and is used to convert the kinetic energy of the rotating component into potential energy and store it.

[0012] In one embodiment, the blade assembly includes:

[0013] The support part is fitted onto the rotating assembly via a spline engagement.

[0014] Multiple magnetic blades, the multiple magnetic blades facing the same direction and spaced apart circumferentially on the support, the magnetic blades being rotatably connected to the support;

[0015] In this configuration, the magnetic blades on each pair of adjacent blade assemblies are oriented in opposite directions.

[0016] In one embodiment, the magnetic blade includes:

[0017] The slotted blade is rotatably mounted on the support via a telescopic rod, and a permanent magnet is installed on its surface, with a positioning slot installed at one end.

[0018] The pin blade is rotatably mounted on the support part via a telescopic rod. A permanent magnet is mounted on its surface, and a positioning pin is mounted on one end. The positioning pin is movably mounted in the positioning groove.

[0019] Furthermore, the magnetic poles of the permanent magnets on the surfaces of the slot blades and pin blades are oriented in the same direction.

[0020] In one embodiment, the rotating assembly includes:

[0021] The rotating rod is connected at its bottom end to the power generation structure.

[0022] The rotating sleeve is fitted onto the rotating rod via a spline engagement, and the outer ring of the rotating sleeve is fitted with the support portion.

[0023] In one embodiment, the tidal current power generation device further includes a hydraulic device connected to one end of the rotating sleeve, which is used to push the rotating sleeve to move axially along the rotating rod.

[0024] In one embodiment, magnetic levitation components are respectively provided at both ends of the rotating component, and the rotating component is fixedly connected to the support column through the magnetic levitation components.

[0025] In one embodiment, the flow guiding structure further includes a flow guiding shroud, which is fixedly installed on the top of the support column and connected to the water inlet.

[0026] In one embodiment, the power generation structure includes a motor, an accelerator, a battery, and a power generation cover. The accelerator rotates coaxially with one end of the rotating assembly. The motor is connected to the accelerator. The battery is connected to the motor via a wire. The power generation cover is installed at the other end of the support column. The motor, accelerator, and battery are located inside the power generation cover.

[0027] In one embodiment, the accelerator includes:

[0028] The first acceleration wheel is rotatably connected to one end of the rotating assembly;

[0029] The first transmission wheel meshes externally with the first acceleration wheel;

[0030] The second acceleration wheel rotates coaxially with the first transmission wheel;

[0031] The second transmission wheel meshes externally with the second acceleration wheel and is connected to the electric motor;

[0032] The radius of the first acceleration wheel is larger than that of the first transmission wheel, and the radius of the second transmission wheel is larger than that of the second acceleration wheel.

[0033] In the initial state of the aforementioned tidal current power generation device, the one-way valve at the top of the water tank is open, while the one-way valve at the bottom is closed. Water flows into the guiding structure from the inlet and, under gravity, passes through the one-way valve at the top of the water tank into the water tank. The water tank expands as the amount of water increases until it fills the internal space of the support column. When the water flow velocity is low and the self-starting capability of the rotating components is insufficient, the one-way valve at the top of the water tank is closed, and the one-way valve at the bottom is opened. This allows the water inside the water tank to be discharged through the one-way valve at the bottom of the water tank along the pipe from multiple outlets on the support column. Because the outlets face the gap between two adjacent blade assemblies, the discharged water pushes the blades on the blade assemblies, thereby driving the rotating components to start, completing the self-starting at low water flow velocities. This device stores water in the water tank and discharges it into the gap between two adjacent blade assemblies, thus driving the blade assemblies to rotate. Compared to traditional vertical axis tidal current power generation structures, it has a stronger self-starting capability at low flow velocities. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1One of the schematic diagrams of the current-guiding tidal energy generation device provided by the present invention;

[0036] Figure 2 This is a schematic diagram of the flow guiding structure provided by the present invention;

[0037] Figure 3 This is a schematic diagram of the support column structure provided by the present invention;

[0038] Figure 4 A schematic diagram of the spring-loaded energy storage structure provided by the present invention;

[0039] Figure 5 This is one of the schematic diagrams of the internal structure of the gearbox provided by the present invention;

[0040] Figure 6 This is the second schematic diagram of the internal structure of the gearbox provided by the present invention;

[0041] Figure 7 This is a schematic diagram of the blade assembly structure provided by the present invention;

[0042] Figure 8 This is a schematic diagram of the rotating component structure provided by the present invention;

[0043] Figure 9 A schematic diagram of the power generation structure provided by the present invention;

[0044] Figure 10 This is the second schematic diagram of the current-guiding tidal energy generation device provided by the present invention.

[0045] Figure 11 This is a schematic diagram of the accelerator structure provided by the present invention.

[0046] Figure label:

[0047] 100. Support column; 110. Outlet; 120. Frame; 200. Power generation structure; 210. Electric motor; 220. Accelerator; 221. First acceleration wheel; 222. First transmission wheel; 223. Second acceleration wheel; 224. Second transmission wheel; 230. Battery; 240. Power generation cover; 300. Flow guiding structure; 310. Inlet; 320. Water storage tank; 330. Flow guide cover; 400. Rotating assembly; 410. Rotating rod; 420. Rotating sleeve; 430. Hydraulic device; 440. Magnetic levitation assembly; 500. Blade assembly; 510. Support part; 520. Magnetic blade 521, slotted blade; 5211, positioning slot; 522, pin blade; 5221, positioning pin; 530, telescopic rod; 600, spring-loaded energy storage structure; 610, speed sensor; 620, bracket; 6211, transmission gear; 6212, first synchronizing ring; 6213, first cylindrical gear; 6221, second cylindrical gear; 6222, first connecting gear; 6223, second synchronizing ring; 6224, second connecting gear; 6231, energy storage gear; 6232, energy release gear; 624, spring; 625, reversing gear; 630, housing; 631, connecting hole. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0053] The following is combined Figures 1-11 The present invention describes a current-guided tidal energy generation device.

[0054] like Figures 1 to 3 As shown, in one embodiment, a tidal current power generation device includes a support column 100, a flow guiding structure 300, and multiple rotating components 400. In this embodiment, based on the optimal device dimensions obtained experimentally, six rotating components 400 are provided. The power generation structure 200 is installed at the bottom of the support column 100, and three outlets 110 are spaced circumferentially on its outer wall. The flow guiding structure 300 includes an inlet 310 and a water storage tank 320. The inlet 310 is installed at the top of the support column 100, and the water storage tank 320 is installed inside the support column 100. The inlet 310 is connected to the top of the water storage tank 320 via a pipe, and the bottom of the water storage tank 320 is connected to the three outlets 110 via pipes. One-way valves are provided at both ends of the water storage tank 320. The bottom of each rotating component 400 is connected to the power generation structure 200, and a blade assembly 500 is fitted onto the rotating component 400. The six rotating components 400 are spaced circumferentially along the outer ring of the support column 100. It should be noted that each outlet 110 corresponds to two blade assemblies 500, and the outlet 110 faces the gap between the two blade assemblies 500, which is used to drive the blades to rotate by the discharged water flow.

[0055] Specifically, the power generation structure 200 can be a motor 210 plus a battery 230. The motor 210 generates electrical energy by rotating with the rotating component 400 and transmits it to the battery 230 through wires. The water storage device 320 is a bag-type structure made of elastic material, and its internal capacity increases with the amount of water stored.

[0056] In the initial state of the aforementioned tidal current power generation device, the one-way valve at the top of the water storage tank 320 is open, and the one-way valve at the bottom is closed. Water flows from the inlet 310 into the guiding structure 300 and enters the water storage tank 320 through the one-way valve at the top of the water storage tank 320 under the action of gravity. At this time, the water storage tank 320 expands as the amount of water entering increases until it fills the internal space of the support column 100. When the water flow rate is low and the self-starting capability of the rotating component 400 is insufficient, the one-way valve at the top of the water storage tank 320 is closed and the one-way valve at the bottom is opened, so that the water inside the water storage tank 320 is discharged through the one-way valve at the bottom of the water storage tank 320 along the pipe from multiple outlets 110 on the support column 100. Since the outlets 110 face the gap between two adjacent blade assemblies 500, the discharged water pushes the blades on the blade assembly 500, thereby driving the rotating component 400 to start, completing the self-starting under low water flow rate. The device stores water flow through a water reservoir 320 and discharges the water flow toward the gap between two adjacent blade assemblies 500, thereby driving the blade assembly 500 to rotate. Compared with the traditional vertical axis tidal power generation structure 200, it has a stronger self-starting capability at low flow rates.

[0057] like Figure 4 As shown, in this embodiment, a spring-loaded energy storage structure 600 is also installed at the top of the support column 100. The spring-loaded energy storage structure 600 is connected to the top of the rotating component 400 and is used to convert the kinetic energy of the rotating component 400 into potential energy and store it.

[0058] Specifically, the spring-loaded energy storage structure 600 includes six gearboxes, each connected to a corresponding rotating component 400. A protective cover is installed on the outside of each gearbox to isolate it from water flow. When the water flow velocity is high, the rotating component 400 rotates, simultaneously tightening the spring 624 inside the gearbox to store kinetic energy. When the water flow velocity is low, the spring 624 reverses, releasing energy and driving the rotating component 400 to rotate, ensuring the device's self-starting capability when the water flow velocity is low.

[0059] It should be noted that since the rotation direction of the spring 624 when releasing energy is opposite to that when storing energy, a reversing device is required to prevent the rotating component 400 from reversing and colliding with the water flow, thus reducing the power generation efficiency.

[0060] This embodiment provides an internal structure of a gearbox as follows: Figure 5 and Figure 6As shown, the gearbox includes a housing 630, a bracket 620, and a speed sensor 610. The bottom of the housing 630 has a connecting hole 631. The top of the rotating assembly 400 passes through this connecting hole 631, enters the gearbox, and connects to the transmission gear 6211. The bracket 620 is supported by self-aligning ball bearings, which mount a drive shaft, a reversing shaft, and an energy storage shaft. The drive shaft is fitted with a first synchronizer ring 6212 and a first cylindrical gear 6213. The reversing shaft is fitted with a second cylindrical gear 6221, a first connecting gear 6222, a second synchronizer ring 6223, and a second connecting gear 6224. The energy storage shaft is fitted with an energy storage gear 6231 and an energy release gear 6232. The first synchronizing ring 6212 rotates coaxially with the first cylindrical gear 6213. The first cylindrical gear 6213 meshes externally with the second cylindrical gear 6221. The second cylindrical gear 6221 rotates coaxially with the second synchronizing ring 6223. The first connecting gear 6222 and the second connecting gear 6224 are mounted on the reversing shaft through self-aligning ball bearings. The first connecting gear 6222 meshes externally with the energy storage gear 6231. The energy storage gear 6231, the energy release gear 6232, and the spring 624 rotate coaxially. The energy release gear 6232 and the second connecting gear 6224 are driven by a reversing gear 625, which is used to change direction. It should be noted that the first synchronizing ring 6212 can move axially along the drive shaft to connect the drive gear 6211 to the drive shaft and rotate coaxially; the second synchronizing ring 6223 can move axially along the reversing shaft to connect the first connecting gear 6222 or the second connecting gear 6224 to the reversing shaft and rotate coaxially; the speed sensor 610 is connected to the rotating assembly 400 and is used to measure the speed of the rotating assembly 400.

[0061] When the speed sensor 610 detects a high rotational speed of the rotating assembly 400, the first synchronizing ring 6212 and the second synchronizing ring 6223 move downwards. The rotating assembly 400 drives the transmission gear 6211 to rotate, and transmits the rotational speed sequentially to the first cylindrical gear 6213, the second cylindrical gear 6221, the first connecting gear 6222, and the energy storage gear 6231, thereby driving the spring 624 to rotate and store energy. At this time, the second connecting gear 6224 does not rotate because there is a self-aligning ball bearing between it and the reversing shaft. When the speed sensor... When device 610 detects that the rotational speed of the rotating assembly 400 is low, the first synchronizing ring 6212 moves down and the second synchronizing ring 6223 moves up. The spring 624 releases energy, causing the energy-releasing gear 6232 to reverse. This energy is then transmitted sequentially through the reversing gear 625 to the second connecting gear 6224, the second cylindrical gear 6221, the first cylindrical gear 6213, and the transmission gear 6211, thereby driving the rotating assembly 400 to rotate. At this time, the first connecting gear 6222 does not rotate because there is a self-aligning ball bearing between it and the reversing shaft. When the energy of the spring 624 is completely released and the rotational speed of the rotating assembly 400 is still low, the first synchronizing ring 6212 moves up, and the transmission gear 6211 is disconnected from the first cylindrical gear 6213.

[0062] like Figure 7 As shown, in this embodiment, the blade assembly 500 includes a support portion 510 and a plurality of magnetic blades 520. The support portion 510 is splined and fitted onto the rotating assembly 400. The plurality of magnetic blades 520 have the same orientation and are circumferentially spaced on the support portion 510, and the magnetic blades 520 are rotatably connected to the support portion 510. Specifically, the magnetic blades 520 on any two adjacent blade assemblies 500 have opposite orientations.

[0063] Specifically, the magnetic blade 520 can be a blade with an outer magnet embedded in it or a blade made of a magnet, with the N pole and S pole of the magnet on the blade distributed outwards in sequence. Since the magnetic blades 520 on each of two adjacent blade assemblies 500 face opposite directions, that is, the two adjacent blade assemblies 500 rotate in opposite directions when they are in contact with the water flow, and since the magnetic fields of the magnetic blades 520 on the blade assembly 500 are the same, they are accelerated to rotate by the mutual repulsion of the magnetic force.

[0064] In this embodiment, the magnetic blade 520 includes a slotted blade 521 and a pin blade 522. The slotted blade 521 is rotatably mounted on the support 510 via a telescopic rod 530, and a permanent magnet is mounted on its surface. A positioning slot 5211 is mounted on one end of the slotted blade 521. The pin blade 522 is rotatably mounted on the support 510 via a telescopic rod 530, and a permanent magnet is mounted on its surface. A positioning pin 5221 is mounted on one end of the pin blade 5221, which is movably mounted in the positioning slot 5211. The magnetic poles of the permanent magnets on the surfaces of the slotted blade 521 and the pin blade 522 are oriented in the same direction.

[0065] Specifically, the telescopic rod 530 has an adjustable length, with one end connected to the support part 510 and the other end connected to the groove blade 521 or the pin blade 522. When the telescopic rod 530 extends, the other end of the telescopic rod 530 pushes the blade open, increasing the angle between the blade and the support part 510; when the telescopic rod 530 shortens, the other end of the telescopic rod 530 pulls the blade back, decreasing the angle between the blade and the support part 510. By adjusting the angle between the groove blade 521 and the support part 510, and the angle between the pin blade 522 and the support part 510, the angle between the groove blade 521 and the pin blade 522 can be adjusted, thereby adjusting the contact angle between the blade and the water flow to a suitable angle under different axial water flow velocities.

[0066] It should be noted that during the rotation of the blades, the positioning pin 5221 is always located within the positioning groove 5211. In other words, the angle between the groove blade 521 and the pin blade 522 has a maximum value, which prevents the system from overloading when the water flow velocity is too high.

[0067] like Figure 8 As shown, in this embodiment, the rotating assembly 400 includes a rotating rod 410 and a rotating sleeve 420. The bottom end of the rotating rod 410 is connected to the power generation structure 200. The rotating sleeve 420 is sleeved on the rotating rod 410 via a spline engagement, and a support portion 510 is sleeved on the outer ring of the rotating sleeve 420. Specifically, both ends of the rotating rod 410 pass through both ends of the support column 100 and are respectively connected to the power generation structure 200 and the energy storage structure. The rotating rod 410, the rotating sleeve 420, and the support portion 510 are connected from the inside to the outside via a spline engagement, thereby ensuring that the blade assembly 500 drives the rotating assembly 400 to rotate synchronously and coaxially.

[0068] like Figure 9As shown, in this embodiment, the tidal current power generation device further includes a hydraulic device 430, which is connected to one end of the rotating sleeve 420 and is used to push the rotating sleeve 420 to move axially along the rotating rod 410. Specifically, one end of the hydraulic device 430 is connected to one end of the rotating sleeve 420, and the other end can be set on one end of the support column 100. When the water flow velocity is low, the magnetic blades 520 on the rotating assembly 400 rotate slowly. Since the blades are magnetic, the magnetic blades 520 on two adjacent rotating assemblies 400 will generate a force that hinders rotation during rotation. Since the rotation speed is low at this time, it is impossible to counteract the force that hinders rotation. By configuring the hydraulic device 430, when the speed sensor 610 detects a low rotational speed, the hydraulic device 430 pushes two adjacent rotating sleeves 420 to different positions to increase the distance between the magnetic blades, thereby eliminating the magnetic resistance. When the speed sensor 610 detects that the rotational speed has recovered, the hydraulic device 430 pulls the two adjacent rotating sleeves 420 back to the same position, causing the magnetic blades to move closer together and generate vortex assistance, thereby increasing the blade rotational speed. To ensure that the rotating sleeves 420 can still rotate when the hydraulic device 430 is in operation, thrust bearings can be installed at both ends of the rotating sleeves 420.

[0069] It should be noted that the rotating sleeve 420 and the hydraulic device 430 can be installed on the rotating rod 410 at intervals. For example, the rotating sleeve 420 can be installed only on the counterclockwise rotating rod 410, and the rotating sleeve 420 on the counterclockwise rotating rod 410 can be pushed upward by the hydraulic device 430. This can also increase the distance between the magnetic blades 520 on the adjacent rotating components 400, thereby eliminating the obstruction of magnetic force, saving device costs, and reducing manufacturing difficulty.

[0070] like Figure 10 As shown, based on the above principle, rotating sleeves 420 are fitted onto the three counterclockwise rotating rods 410, and a frame 120 is fitted onto the six rotating rods 410. The frame 120 is located at the bottom end of the rotating sleeves 420 and can move axially along the rotating rods 410. A hydraulic device 430 is installed on the support column 100 near the frame 120, and its top end is connected to the bottom end of the frame 120, for pushing the frame 120 to move. Specifically, when the speed sensor 610 detects a low speed, it controls the hydraulic device 430 to push the frame 120, causing the blade assembly 500 on the counterclockwise rotating rods 410 to move towards the top of the support column 100 along with the rotating sleeves 420, increasing the horizontal distance between two adjacent blade assemblies 500, thereby eliminating the obstruction effect of magnetic force.

[0071] like Figure 8 and Figure 10As shown, in this embodiment, magnetic levitation components 440 are respectively provided at both ends of the rotating component 400, and the rotating component 400 is fixedly connected to the support column 100 through the magnetic levitation components 440. Specifically, annular permanent magnets are fixed at both ends of the rotating rod 410, and a levitation cover is wrapped around the outside of the annular permanent magnet. A sheet permanent magnet is pasted inside the levitation cover, and the annular permanent magnet and the sheet permanent magnet are kept in a gap fit state under the action of magnetic force; the levitation cover is engaged with the end of the support column 100 and sealed and fixed by a sealing cover. The magnetic levitation structure reduces the friction between the rotating component 400 and the support column 100 during the rotation process, thereby improving the power generation efficiency.

[0072] In this embodiment, the flow guiding structure 300 further includes a flow guiding shroud 330, which is fixedly installed at the top of the support column 100 and connected to the water inlet 310. Specifically, the flow guiding shroud 330 is arranged circumferentially around the bottom of the support column 100, connecting to the water inlet 310, and directly connected to the water storage tank 320 through a pipe, thereby increasing the water flow entering the water storage tank 320 and improving the flow guiding efficiency of the flow guiding structure 300.

[0073] like Figure 10 As shown, in this embodiment, the power generation structure 200 includes a motor 210, an accelerator 220, a battery 230, and a power generation cover 240. The accelerator 220 rotates coaxially with one end of the rotating assembly 400. The motor 210 is connected to the accelerator 220. The battery 230 is connected to the motor 210 through a wire. The power generation cover 240 is installed at the other end of the support column 100. The motor 210, the accelerator 220, and the battery 230 are located inside the power generation cover 240.

[0074] like Figure 11 As shown, in this embodiment, the accelerator 220 includes a first accelerating wheel 221, a first transmission wheel 222, a second accelerating wheel 223, and a second transmission wheel 224. One end of the rotating assembly 400 of the first accelerating wheel 221 is coaxially rotatably connected; the first transmission wheel 222 is externally meshed with the first accelerating wheel 221; the second accelerating wheel 223 rotates coaxially with the first transmission wheel 222; the second transmission wheel 224 is externally meshed with the second accelerating wheel 223 and connected to the motor 210; the radius of the first accelerating wheel 221 is larger than that of the first transmission wheel 222, and the radius of the second transmission wheel 224 is larger than that of the second accelerating wheel 223.

[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A current-guiding tidal energy generation device, characterized in that, include: The support column has a power generation structure installed at the bottom, and multiple water outlets are spaced around the circumference on the outer wall. The flow guiding structure includes an inlet and a water storage tank. The inlet is installed at the top of the support column, and the water storage tank is installed inside the support column. The inlet is connected to the top of the water storage tank via a pipe, and the bottom of the water storage tank is connected to multiple outlets via pipes. One-way valves are provided at both ends of the water storage tank. Water flows into the flow guiding structure from the inlet and enters the water storage tank through the one-way valve at the top of the water storage tank under the action of gravity. At this time, the water storage tank expands as the amount of water entering increases, generating potential energy. Multiple rotating components, the bottom end of which is connected to the power generation structure, and a blade assembly is fitted onto each rotating component. The multiple rotating components are spaced apart along the outer circumference of the support column. The outlet faces the gap between each pair of adjacent blade assemblies. The discharged water flow pushes the blades on the blade assembly, thereby driving the rotating component to start, completing the self-starting under low water flow rate.

2. The current-guiding tidal power generation device according to claim 1, characterized in that, The top of the support column is also equipped with a spring-loaded energy storage structure, which is connected to the top of the rotating component and is used to convert the kinetic energy of the rotating component into potential energy and store it.

3. The current-guiding tidal power generation device according to claim 1, characterized in that, The blade assembly includes: The support part is fitted onto the rotating assembly via a spline engagement. Multiple magnetic blades, the multiple magnetic blades facing the same direction and spaced apart circumferentially on the support, the magnetic blades being rotatably connected to the support; In this configuration, the magnetic blades on each pair of adjacent blade assemblies are oriented in opposite directions.

4. The current-guiding tidal power generation device according to claim 3, characterized in that, The magnetic blades include: The slotted blade is rotatably mounted on the support via a telescopic rod, and a permanent magnet is installed on its surface, with a positioning slot installed at one end. The pin blade is rotatably mounted on the support part via a telescopic rod. A permanent magnet is mounted on its surface, and a positioning pin is mounted on one end. The positioning pin is movably mounted in the positioning groove. Furthermore, the magnetic poles of the permanent magnets on the surfaces of the slot blades and pin blades are oriented in the same direction.

5. The current-guiding tidal power generation device according to any one of claims 3 or 4, characterized in that, The rotating assembly includes: The rotating rod is connected at its bottom end to the power generation structure. The rotating sleeve is fitted onto the rotating rod via a spline engagement, and the outer ring of the rotating sleeve is fitted with the support portion.

6. The current-guiding tidal energy generation device according to claim 5, characterized in that, The current-guiding tidal power generation device also includes a hydraulic device connected to one end of the rotating sleeve, which is used to push the rotating sleeve to move axially along the rotating rod.

7. The current-guiding tidal power generation device according to claim 1, characterized in that, The rotating component is provided with magnetic levitation components at both ends, and the rotating component is fixedly connected to the support column through the magnetic levitation components.

8. The current-guiding tidal power generation device according to claim 1, characterized in that, The flow guiding structure also includes a flow guiding shroud, which is fixedly installed on the top of the support column and connected to the water inlet.

9. The current-guiding tidal power generation device according to claim 1, characterized in that, The power generation structure includes an electric motor, an accelerator, a battery, and a power generation cover. The accelerator rotates coaxially with one end of the rotating component. The electric motor is connected to the accelerator. The battery is connected to the electric motor via wires. The power generation cover is installed at the other end of the support column. The electric motor, accelerator, and battery are located inside the power generation cover.

10. The current-guiding tidal power generation device according to claim 9, characterized in that, The accelerator includes: The first acceleration wheel is rotatably connected to one end of the rotating assembly; The first transmission wheel meshes externally with the first acceleration wheel; The second acceleration wheel rotates coaxially with the first transmission wheel; The second transmission wheel meshes externally with the second acceleration wheel and is connected to the electric motor; The radius of the first acceleration wheel is larger than that of the first transmission wheel, and the radius of the second transmission wheel is larger than that of the second acceleration wheel.

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