Vertical axis hydroelectric power plant

Abstract

The application discloses a vertical shaft hydroelectric power generation device, which comprises a power generation module, a driving module and a counterweight assembly. The power generation module comprises a floating platform, a generator and a power input shaft. The power input shaft is vertically arranged and swingably arranged on the floating platform. The generator is arranged on the floating platform. A motor shaft of the generator is in transmission connection with the power input shaft. The driving module comprises a water wheel assembly. The water wheel assembly comprises a plurality of blades. The plurality of blades are distributed around a rotation axis of the water wheel assembly. The water wheel assembly is connected with the power input shaft. The counterweight assembly comprises a connecting rod, a rotating seat, a first anchor chain and a first counterweight component. A lower end of the connecting rod is rotatably arranged on the rotating seat. The first anchor chain is connected between the rotating seat and the first counterweight component. An upper end of the connecting rod is connected to a bottom of the water wheel assembly. The hydroelectric power generation device is improved in power generation efficiency.

Description

Technical Field

[0001] This application relates to the field of hydropower technology, and in particular to a vertical axis hydropower generation device. Background Technology

[0002] Hydropower is widely used as a green power generation method, with ocean currents offering even greater potential for hydropower generation. Chinese Patent Application No. 2024219780358 discloses a vertical-axis hydropower device that uses a counterweight to apply tension to a vertically arranged rotating main shaft, allowing the turbine assembly to efficiently drive a generator. However, during operation, the counterweight suspended below the rotating main shaft rotates with it. The counterweight's weight and rotation with the main shaft result in a lower rotational speed, thus reducing power generation efficiency. Therefore, designing a hydropower technology to improve power generation efficiency is the technical problem this application aims to solve.

[0003] Application content

[0004] This application provides a vertical axis hydroelectric power generation device to improve the power generation efficiency of hydroelectric power generation devices.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] This application provides a vertical axis hydroelectric power generation device, including:

[0007] A power generation module includes a floating platform, a generator, and a power input shaft. The power input shaft is arranged vertically and can be oscillatingly mounted on the floating platform. The generator is mounted on the floating platform, and the generator's motor shaft is connected to the power input shaft via a gearbox.

[0008] A drive module, the drive module including a water turbine assembly, the water turbine assembly including multiple blades, the multiple blades being distributed around the rotation axis of the water turbine assembly, the water turbine assembly being connected to the power input shaft;

[0009] A counterweight assembly, comprising a connecting rod, a rotating seat, a first anchor chain, and a first counterweight component, wherein the lower end of the connecting rod is rotatably mounted on the rotating seat, and the first anchor chain is connected between the rotating seat and the first counterweight component;

[0010] The upper end of the connecting rod is connected to the bottom of the water turbine assembly.

[0011] In one embodiment, the rotating seat is provided with a rotating mounting cavity, and the rotating seat is also provided with a through hole;

[0012] The lower part of the connecting rod is provided with a rotating support part, which has a circular structure and surrounds the outside of the connecting rod;

[0013] The rotating support is rotatably disposed in the rotating mounting cavity, and the connecting rod extends through the through hole to the outside of the rotating seat.

[0014] In one embodiment, the rotating mounting cavity is provided with two thrust ball bearings, which are arranged vertically, and the rotating support is located between the two thrust ball bearings.

[0015] In one embodiment, the lower end of the connecting rod is further provided with a rotation limiting part, the rotation limiting part having a circular structure and surrounding the outside of the connecting rod, the rotation limiting part being located below the rotation support part;

[0016] The rotation limiting part also rests against the thrust ball bearing located at the bottom.

[0017] In one embodiment, the rotating seat includes an upper seat and a lower seat, and the upper seat is further provided with the through hole;

[0018] The upper seat is disposed on the lower seat, and the upper seat and the lower seat form the rotary mounting cavity;

[0019] The first anchor chain is connected to the upper seat or the lower seat.

[0020] In one embodiment, the lower surface of the upper seat is provided with a first mounting groove, and the first mounting groove and the lower seat form the rotary mounting cavity;

[0021] And / or, the upper surface of the lower seat is provided with a second mounting groove, and the second mounting groove and the upper seat form the rotary mounting cavity.

[0022] In one embodiment, the blade includes a mounting frame and a plurality of baffles. The mounting frame is provided with a plurality of through holes, and the baffles are hinged to the mounting frame and arranged at the corresponding through holes.

[0023] The baffle is configured to close the through-port at the front side of the blade, and the blade is also configured to open the through-port at the back side of the blade.

[0024] In one embodiment, the drive module includes a rotating spindle, and the mounting frame is fixedly mounted on the rotating spindle.

[0025] In one embodiment, the drive module includes two mounting disks arranged vertically, a plurality of blades distributed around the axis of the mounting disks, and a vertically arranged mounting frame fixedly disposed between the two mounting disks.

[0026] In one embodiment, the power generation module further includes:

[0027] The self-balancing assembly includes a first frame and a second frame. A first rotating shaft is disposed on the first frame, and a second rotating shaft is disposed on the second frame. The axis of the first rotating shaft and the axis of the second rotating shaft are perpendicular to each other, and the second rotating shaft is rotatably disposed on the first frame. A first mounting port is disposed on the floating platform, the first frame is located in the first mounting port, the first rotating shaft is rotatably disposed on the floating platform, and a power input shaft is disposed on the second frame.

[0028] The generator is fixed on the second frame, and the generator's motor shaft is connected to the power input shaft via a gearbox.

[0029] In one embodiment, the first frame and the second frame are arranged laterally, with the first frame surrounding the periphery of the second frame.

[0030] In one embodiment, the vertical axis hydroelectric power generation device further includes:

[0031] An anchoring module, the anchoring module including a deployment frame and a plurality of second counterweight components, the second counterweight components being disposed on the deployment frame;

[0032] A second anchor chain is provided between the second counterweight component and the floating platform. The second anchor chain is inclined between the floating platform and the corresponding second counterweight component, and the second anchor chain is inclined from top to bottom toward the outside of the floating platform.

[0033] The technical solution of this application has the following technical effects compared with the prior art: by adding a counterweight component, a downward pulling force is applied to the turbine assembly to ensure that the turbine assembly can maintain a basically vertical state for stable power generation. At the same time, the first counterweight component is connected to the rotating seat through the first anchor chain, so that the rotating seat applies a downward pulling force to the connecting rod connected to the turbine assembly. In this way, when the turbine assembly is driven to rotate by the blades, the connecting rod can rotate with the turbine assembly relative to the rotating seat, while the first counterweight component connected to the rotating seat can sink to the seabed and remain stationary, playing a good counterweight role to stabilize the posture of the turbine assembly. The turbine assembly is not affected by the bottom first counterweight component during rotation, thereby increasing the rotation speed of the rotating shaft and improving the power generation efficiency of the hydroelectric power generation equipment. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of an embodiment of the hydroelectric power generation equipment of this application;

[0035] Figure 2 for Figure 1 Cross-sectional view of a medium-sized hydroelectric power generation unit;

[0036] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;

[0037] Figure 4 for Figure 2 A magnified view of a portion of region B in the middle;

[0038] Figure 5 for Figure 1 Schematic diagram of the structure of the counterweight component;

[0039] Figure 6 for Figure 5 Cross-sectional view of the counterweight component;

[0040] Figure 7 for Figure 1 One of the structural schematic diagrams of a hydroelectric turbine drive module;

[0041] Figure 8 for Figure 1 Cross-sectional view of the water turbine drive module;

[0042] Figure 9 for Figure 1 Schematic diagram of the structure of the hydro turbine drive module (Part 2);

[0043] Figure 10 for Figure 7 Schematic diagram of the middle blade structure;

[0044] Figure 11 This is a schematic diagram of another embodiment of the hydroelectric power generation equipment of this application;

[0045] Figure 12 for Figure 11 A schematic diagram of the operational state of the hydro turbine drive module;

[0046] Figure 13 for Figure 12 Schematic diagram of the middle blade structure;

[0047] Figure 14 for Figure 1 Exploded view of the assembly of the waterproof cover assembly;

[0048] Figure 15 for Figure 1 Assembly diagram of the middle deployment frame and the second counterweight component;

[0049] Figure 16 for Figure 1 Reference diagram showing the usage status of the mid-floating platform, power input shaft, and self-balancing assembly.

[0050] Figure label:

[0051] 1. Suspended power generation module; 11. Floating platform; 12. Generator; 13. Power input shaft; 14. Gearbox; 15. Waterproof cover assembly; 16. Self-balancing component; 17. Indicator light;

[0052] 110. First mounting port; 111. Floating frame; 112. Floating component; 113. Cable bollard; 114. Crane; 115. First bearing; 131. Shaft ring; 151. Upper cover; 152. Lower enclosure; 1511. Extension; 1512. First connecting part; 1513. Stepped surface; 1521. Second connecting part; 161. First frame; 162. Second frame; 163. Second mounting port; 164. Stepped mounting surface; 165. Bottom ring; 166. Circular ring frame; 167. Support ball;

[0053] 2. Water turbine drive module; 21. Rotary main shaft; 22. Connecting frame; 23. Blade; 24. Mounting plate; 25. Clamp;

[0054] 211. Rotating sub-shaft; 231. Mounting frame; 232. Baffle; 233. Through-hole; 234. Hinge;

[0055] 3. Anchoring module; 31. Deployment frame; 32. Second counterweight component; 33. Second anchor chain;

[0056] 311. Telescopic beam; 312. Locking component; 3111. Outer tube; 3112. Inner core tube;

[0057] 4. Counterweight assembly; 41. Connecting rod; 42. Rotary seat; 43. Thrust ball bearing; 411. Rotary support part; 412. Rotary limiting part; 421. Through hole; 422. Upper seat; 423. Lower seat. Detailed Implementation

[0058] Example 1, as Figures 1-6 As shown, one embodiment of this application provides a hydroelectric power generation device, including:

[0059] The power generation module includes a generator 12 and a power input shaft 13, with the power input shaft 13 connected to the generator 12 via a gearbox.

[0060] The water turbine drive module 2 includes a water turbine assembly, which includes multiple blades 23 distributed around the rotation axis of the water turbine assembly. The water turbine assembly is connected to the power input shaft. The blades 23 are driven by water flow underwater to rotate the entire water turbine assembly, which in turn drives the generator 12 to generate electricity via the power input shaft 13.

[0061] In order to ensure that the blade 23 can rotate in a basically vertical position during use, and to quickly and automatically reset itself after the blade 23 tilts due to excessive water flow impact, the following improvements are made to the hydroelectric power generation equipment.

[0062] A counterweight assembly 4 is provided at the lower end of the water turbine assembly, and the counterweight assembly 4 is configured to apply a downward pulling force to the water turbine assembly at the bottom.

[0063] Specifically, the counterweight component 4 is arranged at the lower end of the water turbine component. The counterweight component 4 uses its own weight to maintain the stability of the water turbine component, so that the water turbine component can be in a basically vertical state below the water surface or the tilt angle is within a set range (the set range of the tilt angle needs to be configured with a corresponding weight of counterweight component 4 according to the water flow velocity below the water surface, which is not limited here).

[0064] The counterweight assembly 4 includes a connecting rod 41, a rotating seat 42, a first anchor chain (not shown), and a first counterweight component (not shown). The lower end of the connecting rod 41 is rotatably mounted on the rotating seat 42, and the first anchor chain is connected between the rotating seat 42 and the first counterweight component. The upper end of the connecting rod 41 is connected to the lower part of the turbine assembly.

[0065] Specifically, the counterweight assembly is fixedly installed on the lower part of the water turbine assembly via a connecting rod 41. The lower end of the connecting rod 41 is mounted on the rotating seat 42, and the connecting rod 41 is capable of rotating relative to the rotating seat 42.

[0066] During actual installation, after the counterweight assembly is in place, the rotating base 42 connects to the first counterweight component at the bottom via the first anchor chain, and the first counterweight component will fall to the seabed. The physical form of the first counterweight component can be an anchor, a counterweight block, or other structures, and there are no restrictions on this.

[0067] In actual use, the blade 23 is driven by the water flow to drive the water turbine assembly to rotate. The water turbine assembly will drive the connecting rod 41 at the bottom to rotate relative to the rotating seat 42. In this way, the first counterweight component connected to the rotating seat 42 will remain basically stationary.

[0068] By adding a counterweight component, a downward pulling force is applied to the turbine assembly to ensure that the turbine assembly can maintain a basically vertical state for stable power generation. At the same time, the first counterweight component is connected to the rotating base 42 through the first anchor chain, so that the rotating base 42 applies a downward pulling force to the connecting rod 41 connected to the turbine assembly. In this way, as the turbine assembly rotates driven by the blades, the connecting rod 41 can rotate with the turbine assembly relative to the rotating base 42, while the first counterweight component connected to the rotating base 42 can sink to the seabed and remain stationary, playing a good counterweight role to stabilize the posture of the turbine assembly. The turbine assembly is not affected by the first counterweight component at the bottom during rotation, thereby increasing the rotation speed of the rotating shaft and improving the power generation efficiency of the hydroelectric power generation equipment.

[0069] In one embodiment, the rotating seat 42 is provided with a rotating mounting cavity (not marked), and the rotating seat 42 is also provided with a through hole 421;

[0070] The lower part of the connecting rod 41 is provided with a rotating support part 411, which has a ring structure and surrounds the outside of the connecting rod 41.

[0071] The rotating support 411 is rotatably disposed in the rotating mounting cavity, and the connecting rod 41 extends through the through hole 421 to the outside of the rotating seat 42.

[0072] Specifically, in order to meet the installation requirements that the connecting rod 41 can rotate relative to the rotating seat 42 without detaching from the rotating seat 42, a rotating mounting cavity can be provided in the rotating seat 42, and the rotating support part 411 provided at the lower part of the connecting rod 41 is located in the rotating mounting cavity to meet the installation requirements that it can rotate relative to the rotating seat 42 without detaching from the rotating seat 42.

[0073] Furthermore, the rotating mounting cavity is provided with two thrust ball bearings 43, which are arranged vertically, and the rotating support part 411 is located between the two thrust ball bearings 43.

[0074] Specifically, the two thrust ball bearings 43 provided in the rotating seat 42 are used to install the rotating support part 411 provided in the connecting rod 41. On the one hand, this allows the rotating support part 411 to be installed and limited by the two thrust ball bearings 43, and on the other hand, it also ensures that the rotating support part 411 can rotate smoothly on the thrust ball bearings 43.

[0075] Furthermore, the lower end of the connecting rod 41 is provided with a rotation limiting part 412, which has a circular structure and surrounds the outside of the connecting rod 41. The rotation limiting part 412 is located below the rotation support part 411.

[0076] The rotation limiting part 412 also abuts against the thrust ball bearing 43 located at the bottom.

[0077] Specifically, a rotation limiting part 412 may be provided at the bottom of the connecting rod 41. The rotation limiting part 412 will abut against the lower surface of the thrust ball bearing 43 at the bottom, so as to cooperate with the rotation support part 411 to axially limit the connecting rod 41 and provide circumferential rotation support.

[0078] In one embodiment, the rotating seat 42 includes an upper seat 422 and a lower seat 423, and the upper seat 422 is further provided with the through hole 421;

[0079] The upper seat 422 is disposed on the lower seat 423, and the rotating mounting cavity is formed between the upper seat 422 and the lower seat 423;

[0080] The first anchor chain is connected to the upper seat 422 or the lower seat 423.

[0081] Specifically, to facilitate the installation of the connecting rod 41, the rotating seat 42 adopts a split design. During the assembly process, the upper end of the connecting rod 41 is inserted into the through hole 421, and then the upper seat 422 and the lower seat 423 are fixedly connected.

[0082] The upper seat 422 and the lower seat 423 can be fixedly connected by bolts passing through the upper seat 422 and the lower seat 423 and then locked and fixed by locking nuts.

[0083] The lower surface of the upper seat 422 is provided with a first mounting groove, and the first mounting groove and the lower seat 423 form the rotating mounting cavity;

[0084] And / or, the upper surface of the lower seat 423 is provided with a second mounting groove, and the second mounting groove and the upper seat 422 form the rotating mounting cavity.

[0085] Example 2: The physical representation of the water turbine assembly can take many forms, such as: Figure 1 , Figures 7-10 As shown, the water turbine assembly includes:

[0086] Two mounting plates 24 are arranged vertically.

[0087] Multiple blades 23, each blade 23 including a mounting frame 231 and multiple baffles 232, the mounting frame 231 having multiple through-holes 233, the baffles 232 being hinged to the mounting frame 231 and arranged at corresponding through-holes 233; the baffles 232 are configured to close the through-holes 233 at the front surface of the blade 23, and the blades 23 are also configured to open the through-holes 233 at the back surface of the blade 23;

[0088] Multiple blades 23 are distributed around the axis of the mounting plate 24, the mounting frame 231 is arranged vertically, and the mounting frame 231 is fixedly disposed between two mounting plates 24.

[0089] Specifically, the water turbine drive module 2 adopts a shaftless design, with multiple blades 23 fixed between two mounting plates 24 arranged vertically. The mounting plates 24 are used to install and fix the multiple blades 23.

[0090] Multiple blades 23 are vertically arranged around the rotation axis of the mounting plate 24. Each blade 23 includes a mounting frame 231 and several baffles 232. The mounting frame 231 serves as the main support component and is fixedly installed between the two mounting plates 24. The mounting frame 231 has several through-holes 233 arranged in an array. Each through-hole 233 is equipped with a corresponding baffle 232. The baffles 232 are used to open and close the through-holes 233 so that the blades 23 at different positions generate different driving forces when driven by water flow.

[0091] In another embodiment of this application, such as Figures 11-13 As shown, the water turbine drive module 2 includes a rotating main shaft 21; the blade includes a mounting frame 231 and multiple baffles 232, the mounting frame 231 is provided with multiple through holes 233, and the baffles 232 are hinged to the mounting frame 231 and arranged at the corresponding through holes 233.

[0092] The baffle 232 is configured to close the through port 233 at the front surface of the blade, and the blade is also configured to open the through port 233 at the back surface of the blade.

[0093] The mounting frame 231 is fixedly mounted on the rotating spindle 21, and the rotating spindle 21 is connected to the generator 12 in a transmission connection.

[0094] Specifically, in actual use, the blades 23 in the water turbine drive module 2 will be submerged below the water surface, so that the water flow can drive the rotating main shaft 21 to rotate. The rotating main shaft 21 will drive the generator 12 to generate electricity.

[0095] The following is Figure 7 Taking the water turbine assembly as an example, the usage process of blade 23 is explained.

[0096] Since the blades 23 are vertically arranged in the water, during their rotation, they will alternately generate pushing and resisting forces on the mounting plate 24. To increase the pushing force generated by the blades 23 and reduce the resisting force, the structure of the blades 23 has been improved. Specifically, the blades 23 include a mounting frame 231 and a baffle 232 mounted on the mounting frame 231. The mounting frame 231 has a through-hole 233 to allow water to flow through it, while the baffle 232 opens and closes the through-hole 233 according to the change in the force generated by the blades on the rotating shaft.

[0097] Specifically, when the direction of movement of the blade 23 is the same as the direction of water flow, the blade 23 will generate a pushing force on the mounting plate 24. At this time, the baffle on the blade 23 will be located on the front side of the blade. Under the action of the water flow, the baffle will cover the through-hole 233 on the mounting frame 231, so that the blade can have a sufficiently large effective area to contact the water flow and generate thrust. In turn, the water flow will generate a maximum thrust on the blade 23 to drive the mounting plate 24 to rotate.

[0098] When the movement direction of blade 23 is opposite to the direction of water flow, blade 23 will generate a blocking force on mounting plate 24. At this time, the baffle on blade 23 will be located on the back flow surface of blade 23. Under the action of water flow, the baffle will leave the through port 233 and thus open the through port 233 on mounting frame 231, thereby reducing the effective area generated by the blade and water flow. In this way, the blocking force generated by water flow on blade 23 can be minimized.

[0099] By providing several through-holes 233 on the mounting frame 231, and configuring baffles 232 for each through-hole 233 to open and close, during operation, the blades drive the rotating main shaft to rotate under the driving force of the water flow. During the rotation of the blades, the baffles 232 alternately occupy the upstream and downstream sides of the blades. When the baffle 232 is on the upstream side of the blades, it closes the through-holes 233, allowing the water flow to apply pressure to the baffles 232 and drive the rotating main shaft to rotate. When the baffle 232 is on the downstream side of the blades, it opens under the action of the water flow. With the through-hole 233, during rotation, the water flow driving force on the blades in the same direction as the water flow is greater than that on the blades in the opposite direction of the water flow, allowing a larger pressure difference to be formed on both sides of the rotating main shaft to increase the rotation speed of the rotating main shaft and improve power generation efficiency. Furthermore, the blade mounting frame 231 remains fixed to the rotating main shaft during rotation, with only a few baffles 232 on different blades rotating due to the influence of the water flow, improving reliability. In addition, the overall structure is simpler and easier to maintain, further enhancing reliability.

[0100] Furthermore, during the process of the baffle 232 being impacted by the water flow to open the through-hole 233, in order to control the opening angle of the baffle 232, the mounting frame 231 is also provided with a plurality of limiting components (not shown), the limiting components are arranged on the outer side of the corresponding baffle 232; the limiting components are configured to restrict the rotation angle of the baffle 232 opening the through-hole 233.

[0101] Specifically, during the rotation of the blade 23, when the direction of movement of the blade 23 is opposite to the direction of water flow, the baffle 232 on the blade 23 will be opened by the water flow, and the water flow will pass through the through-hole 233 and flow through the mounting frame 231 of the blade 23. The baffle 232 is flipped open by the action of the water flow, and the flipping angle of the baffle 232 will be controlled by the limiting component.

[0102] The limiting component is a limiting rod, one end of which is fixedly mounted on the mounting frame 231, and the other end of which is arranged on the outside of the baffle 232.

[0103] Alternatively, the limiting component is a limiting plate, one end of which is fixedly mounted on the mounting frame 231, and the other end of which is arranged on the outside of the baffle 232.

[0104] In addition, to facilitate the installation of the baffle 232, the top of the baffle 232 is mounted on the mounting frame 231 via a hinge 234, or the side of the baffle 232 is mounted on the mounting frame 231 via a hinge 234.

[0105] Furthermore, in order to reduce the overall height of a single blade and make full use of the water depth to improve power generation efficiency, a plurality of water turbine assemblies are provided on the rotating main shaft, and the plurality of water turbine assemblies are arranged sequentially at intervals along the length of the rotating main shaft.

[0106] Specifically, multiple turbine components can be arranged along the length of the same rotating main shaft, and then the multiple turbine components are driven by water flow to perform efficient power generation.

[0107] Furthermore, in order to reduce the difficulty of processing and installation, the water turbine assembly also includes multiple connecting frames, which are mounted on the rotating main shaft, and the mounting frame 231 is connected to the rotating main shaft through the connecting frames.

[0108] Specifically, the blade adopts the mounting frame 231 as the main structure. The mounting frame 231 can be processed by conventional methods such as steel pipe welding or casting. The overall structure of the mounting frame 231 is simple and does not need to consider the streamlined design of the blade. It only needs to arrange a corresponding number of through holes 233 to reduce the obstruction force generated by the blade 23.

[0109] The mounting frame 231 can be fixedly connected to the rotating spindle by a connecting bracket. The connecting bracket can be welded between the mounting frame 231 and the rotating spindle, or the connecting bracket can be fixed between the mounting frame 231 and the rotating spindle by bolts or other means.

[0110] Based on the above technical solution, optionally, in actual use, in order to facilitate the installation of the generator 12, the power generation module includes a floating platform 11, and the generator 12 is set on the floating platform 11.

[0111] Specifically, the suspended hydroelectric power generation device provided in this application uses a power generation module to generate electricity. The generator 12 on the power generation module is located on the floating platform 11 and is not immersed in water, which can effectively reduce the occurrence of damage to the generator 12 due to water ingress caused by seal failure, effectively improving the reliability of the generator 12 and thus improving the overall reliability of the suspended hydroelectric power generation device.

[0112] Example 3, as Figures 1-11 As shown, in order to improve the reliability of hydropower equipment and increase power generation efficiency, this application makes the following structural improvement design.

[0113] The power generation module provided in this application also includes a self-balancing component 16; the self-balancing component includes a first frame 161 and a second frame 162, a first rotating shaft is provided on the first frame 161, a second rotating shaft is provided on the second frame 162, the axis of the first rotating shaft and the axis of the second rotating shaft are perpendicular to each other, and the second rotating shaft is rotatably mounted on the first frame 161; a first mounting port 110 is provided on the floating platform 11, the first frame 161 is located in the first mounting port 110, the first rotating shaft is rotatably mounted on the floating platform 11, a power input shaft 13 is provided on the second frame 162, and the generator 12 is fixed on the second frame 162.

[0114] Specifically, the self-balancing assembly is configured with a first frame 161 and a second frame 162 that are capable of relative rotation, and the axis of the first rotating shaft on the first frame 161 and the axis of the second rotating shaft on the second frame 162 are perpendicular to each other. After the first frame 161 is mounted on the floating platform 11 via the first rotating shaft, the first frame 161 is able to rotate about the axis of the first rotating shaft in the first mounting port 110.

[0115] The generator 12 is mounted on the second frame 162 and connected to the power input shaft 13 on the second frame 162. The water turbine drive module 2 is connected to the lower end of the power input shaft 13 via the mounting plate 24. During normal power generation, the floating platform 11 floats on the water surface and sways due to the fluctuations in the water surface. During the swaying of the floating platform 11, the first frame 161 and the second frame 162 will also rotate accordingly, so that the power input shaft 13 is basically vertical under the gravity of the bottom water turbine drive module 2, so as to effectively utilize the water flow to generate electricity and improve the power generation efficiency. At the same time, the deflection force generated by the mounting plate 24 on the power input shaft 13 is small, and the generator 12 is fixed on the second frame 162 to always maintain a reliable connection with the power input shaft 13, thereby improving the reliability of the generator 12.

[0116] It should be noted that the term "basically vertical" in this application refers to the vertical arrangement of the blades 23 during rotational power generation. Those skilled in the art will understand that under the influence of water flow, the turbine drive module 2 will inevitably cause the blades 23 to tilt at a certain angle. The aforementioned "basically vertical" means that the angle between the axis of the blades 23 and the direction relative to their own weight is considered basically vertical within a set range. This angle range is designed to ensure that the turbine drive module 2, driven by the water flow, can efficiently generate electricity using the blades 23. For example, the angle can be 0-30 degrees. No specific limit is placed on the exact range of the angle.

[0117] In one embodiment, the first frame 161 and the second frame 162 are arranged laterally, with the first frame 161 surrounding the periphery of the second frame 162.

[0118] Specifically, the first frame 161 and the second frame 162 are arranged laterally to make full use of the space in the first mounting port 110 to install the self-balancing assembly 16. The first rotating shaft is mounted on the first bearing 115 set on the floating platform 11, and correspondingly, the second rotating shaft is mounted on the second bearing on the first frame 161.

[0119] In one embodiment, the second frame 162 is provided with a second mounting port 163, the second mounting port 163 is provided with a stepped mounting surface 164, the stepped mounting surface 164 is provided with a bottom ring 165, and the upper surface of the bottom ring 165 is provided with a first circular groove (not marked); the power input shaft 13 is provided with a shaft ring 131, and the lower surface of the shaft ring 131 is provided with a second circular groove; the self-balancing assembly 16 also includes a ring frame 166 and a plurality of support balls 167, the ring frame 166 is provided with a plurality of limiting through holes (not shown), and the support balls 167 are located in the limiting through holes; the ring frame 166 is located between the bottom ring 165 and the shaft ring 131, and the support balls 167 are located between the first circular groove and the second circular groove.

[0120] Specifically, to improve the installation reliability of the power input shaft 13, a shaft ring 131 is also provided on the power input shaft 13. Furthermore, to ensure the power input shaft 13 can rotate smoothly on the second frame 162, a stepped surface 1513 is provided on the second frame 162 to mount the bottom ring 165. The shaft ring 131 is positioned above the bottom ring 165, and a support ball 167 is provided between them to support the rotation of the shaft ring 131.

[0121] In actual use, the power input shaft 13 can limit its installation position in the second mounting port 163 by the shaft ring 131, and the support ball 167 below the shaft ring 131 ensures smooth rotation under the drive of the water circuit module.

[0122] In order to accurately anchor the floating platform 11, the multiple second anchor chains 33 configured at the bottom of the floating platform 11 need to maintain a relatively constant tilt position. However, the method of dropping anchors underwater cannot accurately control the position of each anchor on the seabed. To solve this problem, the following structural improvements are made to the underwater anchoring method of hydroelectric power generation equipment.

[0123] The bottom of the floating platform 11 is also provided with an anchoring module 3. The anchoring module 3 includes a deployment frame 31 and multiple second counterweight components 32. Multiple second anchor chains 33 are provided on the deployment frame 31, and the second counterweight components 32 are provided on the deployment frame 31.

[0124] The upper end of the second anchor chain 33 is connected to the floating platform 11. The second anchor chain 33 is inclined between the floating platform 11 and the corresponding second counterweight component 32. The second anchor chain 33 is inclined from top to bottom toward the outside of the floating platform 11.

[0125] Specifically, during construction, the deployment frame 31 and the second counterweight component 32 are first deployed to the seabed together. Then, the second anchor chain 33 is connected between the floating platform 11 and the deployment frame 31. Since the structure of the deployment frame 31 itself has precisely defined the positions of the different second counterweight components 32, the bottom connection position of the second anchor chain 33 can be determined and kept constant for different second anchor chains 33. This ensures that the floating platform 11 at the top, to which the second anchor chain 33 is connected, can be reliably pulled and positioned by the second anchor chain 33. In this way, the relative positions between the various second anchor chains 33 can be precisely controlled, solving the problem of uncontrollable bottom anchor position on the seabed caused by deploying anchors separately, and improving the deployment position accuracy of the mooring module 3.

[0126] By setting a deployment frame 31 on the mooring module 3, multiple second counterweight components 32 are installed and positioned via the deployment frame 31. The relative positions of the multiple second counterweight components 32 are positioned by the deployment frame 31. In this way, after the mooring module 3 is deployed into the sea and sinks to the seabed, the relative positions of the multiple second counterweight components 32 will not change. This ensures that the relative positions of the multiple second anchor chains 33 connecting the second counterweight components 32 and the floating platform 11 remain stable. During use, the multiple second anchor chains 33 can provide multi-directional pulling force to the floating platform 11. Since the positions of the second anchor chains 33 are precisely positioned by the deployment frame 31, each second anchor chain 33 can effectively position the top floating platform 11, allowing the floating platform 11 to float stably on the sea surface. This ensures that the floating platform 11 can maintain a stable floating state on the water surface, thereby improving the reliability of the floating platform 11.

[0127] Furthermore, the deployment frame 31 includes multiple telescopic beams 311, and each telescopic beam 311 is provided with a locking member 312. The locking member 312 is configured to lock the telescopic beam 311 after it has been extended or retracted into place; wherein, the multiple telescopic beams 311 are connected end to end in sequence.

[0128] Specifically, to further improve the versatility of the mooring module 3 and meet the deployment requirements of waters at different depths, the deployment frame 31 is a telescopic frame to allow for expansion and contraction of its dimensions. Specifically, during use, the lengths of the multiple telescopic beams 311 of the deployment frame 31 can be adjusted according to the depth of the water, thereby adjusting the relative positions of the various second counterweight components 32 and ensuring that the tilt angles of the second anchor chains 33 meet the requirements for stable floating of the top floating platform 11.

[0129] Furthermore, the telescopic beam 311 includes an outer tube 3111 and an inner core tube 3112. The outer tube 3111 is fitted over the inner core tube 3112. The outer tube 3111 and the inner core tube 3112 can slide relative to each other. The locking member 312 is disposed on the outer tube 3111 and configured to lock the position of the inner core tube 3112 relative to the outer tube 3111.

[0130] Specifically, for the telescopic beam 311, in order to meet the telescopic requirements, an outer sleeve 3111 is used in conjunction with an inner core tube 3112. The outer sleeve 3111 can move relative to the inner core tube 3112 to achieve adjustment of the length of the telescopic beam 311.

[0131] Meanwhile, after the length of the telescopic beam 311 is adjusted, the locking element 312 is used to further lock the relative position between the outer tube 3111 and the inner core tube 3112. In this way, during the deployment process after the deployment frame 31 is adjusted to the correct size, the locking element 312 prevents relative movement between the outer tube 3111 and the inner core tube 3112, thus preventing deformation of the deployment frame 31 during deployment and improving its reliability and convenience.

[0132] Furthermore, the outer tube 3111 is provided with multiple threaded holes (not shown), and the inner core tube 3112 is provided with multiple positioning holes (not shown). The multiple threaded holes extend along the length direction of the outer tube 3111, and the multiple positioning holes extend along the length direction of the inner core tube 3112. The locking member 312 is a locking bolt, which is threadedly connected to the corresponding threaded hole and inserted into the corresponding positioning hole.

[0133] Specifically, the locking element 312 can be locked by using a locking bolt to lock the position between the outer tube 3111 and the inner tube 3112. That is, after adjusting the relative position of the outer tube 3111 and the inner tube 3112, the threaded hole will be aligned with the corresponding positioning hole. Then, tighten the locking bolt so that the locking bolt is inserted into the corresponding positioning hole. In this way, the position between the outer tube 3111 and the inner tube 3112 can be locked.

[0134] Furthermore, for two adjacent telescopic beams 311, the outer sleeve 3111 of one telescopic beam 311 is connected to the inner core tube 3112 of the other telescopic beam 311 to form a fixed connection.

[0135] Specifically, the deployment frame 31 formed by the telescopic beams 311 can be an equilateral triangle or a rectangle, so that the ends of two adjacent telescopic beams 311 can be fixedly connected together by welding.

[0136] After the ends of the two telescopic beams 311 are welded together, a fixed connection is formed, and the second counterweight component 32 can be connected to the corresponding fixed connection. For example, the second counterweight component 32 can be connected to the fixed connection via a chain, or the second counterweight component 32 can be welded to the fixed connection via a connecting beam.

[0137] Furthermore, the second counterweight component 32 is a sling basket, which is configured to hold counterweight stones.

[0138] Specifically, the second counterweight component 32 adopts a stone-throwing basket. After the mooring module 3 is transported to the designated water area, a certain amount of stones are placed in the stone-throwing basket, and then the mooring module 3 is launched into the water. The stone-throwing basket is located below the launching frame 31. For example, the stone-throwing basket is suspended from the fixed connection part by a chain; or, the stone-throwing basket can be directly welded to the fixed connection part.

[0139] Based on the above technical solution, optionally, the floating platform 11 includes a floating frame 111 and a floating component 112. The floating frame 111 is provided with a first mounting port 110, and the floating component 112 is disposed on the floating frame 111.

[0140] Specifically, the floating platform 11 needs to meet the installation requirements of the generator 12 at the top of the floating support and the water turbine drive module 2 at the bottom. Therefore, the floating platform 11 adopts a frame structure. That is, floating components 112 are set on the floating frame 111 to form the floating platform 11. The floating frame 111 serves as the main installation body, and the frame structure can improve the structural strength of the floating platform 11 itself; while the floating components 112 can be existing floating objects, such as floating boxes, floating blocks, etc., to increase the buoyancy required by the floating platform 11.

[0141] Furthermore, the floating frame 111 has a hollow structure, and a floating component 112 is installed in the hollow structure.

[0142] Specifically, to facilitate the installation and placement of the floating components 112, the floating frame 111 is designed as a hollow structure, allowing the floating components 112 to be housed within this hollow structure. This design allows for full utilization of the various positions on the floating frame 111 to arrange the floating components 112, thereby improving the overall buoyancy of the floating platform 11. Furthermore, if a floating component 112 in a specific location is damaged, the corresponding component within the hollow structure can be replaced individually, enhancing maintenance convenience.

[0143] In order to improve the flatness of the upper surface of the floating platform 11, a platform plate (not shown) can also be provided on the upper surface of the floating frame 111, which covers the hollow structure.

[0144] Specifically, the platform plate is laid on the upper surface of the floating frame 111 to cover the hollow structure, thus making the upper surface of the floating platform 11 flatter, which makes it easier for operators to carry out daily maintenance operations on the surface of the floating platform 11.

[0145] The platform plate can be a single piece (such as multiple iron plates welded together and fixed to the floating frame 111). Alternatively, the platform plate can be composed of multiple separately designed iron plates, each covering a corresponding openwork structure; and the iron plates can be connected to the floating frame 111 by hinges, so that when repairing the floating component 112 at the corresponding position, the iron plate at the corresponding position can be opened to facilitate the operator to repair or replace the floating component 112 on the floating platform 11.

[0146] Furthermore, multiple cable stakes 113 are provided on the floating frame 111, with the cable stakes 113 arranged close to the edge of the floating frame 111.

[0147] Specifically, the cable bollard 113 can be used to secure the cables on the maintenance vessel when it approaches the floating platform 11.

[0148] Furthermore, multiple cranes 114 are installed on the floating frame 111, with the cranes 114 arranged close to the edge of the floating frame 111.

[0149] Specifically, in order to facilitate the installation and maintenance of the underwater turbine drive module 2 on the floating platform 11, a crane 114 can be installed on the floating frame 111. The crane 114 can lift the corresponding parts into the water during the installation and maintenance process, or lift the parts that need to be replaced underwater out of the water.

[0150] To improve the waterproof protection capability of generator 12, improvements were made to the external waterproof structure of generator 12.

[0151] The floating platform 11 is also equipped with a waterproof cover assembly 15, which includes an upper cover 151 and a lower enclosure 152. The lower enclosure 152 has a ring structure and is set on the floating platform 11. The lower enclosure 152 surrounds the periphery of the generator 12. The upper cover 151 is set on the lower enclosure 152 and covers the top of the generator 12. The lower edge of the upper cover 151 forms an extension 1511. The extension 1511 extends downward and covers the outside of the connection formed between the upper cover 151 and the lower enclosure 152.

[0152] Specifically, a waterproof cover assembly 15 is also provided on the second frame 162 to shield and protect the generator 12 on the second frame 162. The lower enclosure 152 is fixedly installed on the second frame 162 around the generator 12 and the power input shaft 13, while the upper cover 151 is installed above the lower enclosure 152 to cover the generator 12.

[0153] Meanwhile, since the lower edge of the upper cover 151 is also provided with an extension 1511, the extension 1511 can effectively block the connection between the upper cover 151 and the lower enclosure 152. During use, even if waves hit the waterproof cover assembly 15, the extension 1511 can effectively prevent seawater from entering the waterproof cover assembly 15 through the connection between the upper cover 151 and the lower enclosure 152.

[0154] In this way, the generator 12 is covered by the waterproof cover assembly 15, which blocks sea waves during use and provides good waterproof protection for the generator 12.

[0155] Furthermore, a stepped surface 1513 is formed between the extension 1511 and the inner wall of the upper cover 151, and the stepped surface 1513 abuts against the upper edge of the lower enclosure 152.

[0156] Specifically, during installation, after the generator 12 is placed in the area surrounded by the lower enclosure 152, the upper cover 151 can be installed on the lower enclosure 152. During the installation of the upper cover 151, the upper cover 151 is hoisted above the upper enclosure and overlaps the upper edge of the upper enclosure through the stepped surface 1513, thus allowing the upper cover to be installed on the upper enclosure.

[0157] To improve the reliability of the connection between the upper cover 151 and the lower enclosure 152, after the upper cover 151 and the lower enclosure 152 are joined together via the stepped surface 1513, further connection and fixation are required between them. Therefore, the upper cover 151 is provided with a first connecting part 1512, and the lower enclosure 152 is provided with a second connecting part 1521, with the first connecting part 1512 and the second connecting part 1521 connected together.

[0158] Specifically, after the upper cover 151 is hoisted onto the lower enclosure 152, it is connected and engaged by the first connecting part 1512 and the second connecting part 1521, thereby making the upper cover 151 and the lower enclosure 152 firmly connected together to improve the connection reliability during use.

[0159] The physical representation of the first connecting part 1512 and the second connecting part 1521 can adopt various structural forms. For example, the first connecting part 1512 is a plurality of connecting posts provided on the lower edge of the upper cover 151, and the lower end of the connecting post is provided with an end head, the outer circumferential dimension of the end head being larger than the outer circumferential dimension of the connecting post; the second connecting part 1521 is a strip-shaped hole formed on the lower cover plate 152, the opening size of the strip-shaped hole decreasing along the length direction; the connecting post is inserted into the strip-shaped hole, and the end head is arranged below the strip-shaped hole and configured to prevent the connecting post from disengaging from the strip-shaped hole.

[0160] Specifically, a connecting post is provided at the lower part of the upper cover 151, and correspondingly, a slotted hole is provided at the upper part of the lower enclosure 152. During assembly, after the upper cover 151 is hoisted above the lower enclosure 152, the connecting post is aligned with the corresponding slotted hole. Then, the connecting post is inserted into the slotted hole, and the upper cover 151 is rotated at a certain angle so that the end of the connecting post moves to the smaller end of the slotted hole to prevent the connecting post from disengaging from the slotted hole. In this way, the upper cover 151 can be installed on the lower enclosure 152.

[0161] Alternatively, the first connecting part 1512 is a support beam provided on the upper cover 151. The support beam has an arc structure and the two ends of the support beam form insertion interfaces. The second connecting part 1521 is an insertion protrusion provided on the lower cover 152. The insertion protrusion is inserted into the corresponding insertion interface.

[0162] Specifically, during assembly, after the upper cover 151 is hoisted above the lower enclosure 152, the insertion protrusion is aligned with the insertion interface. Then, the stepped surface 1513 of the upper cover 151 abuts against the lower enclosure 152, allowing the insertion protrusion to be inserted into the insertion interface, thereby installing the upper cover 151 onto the lower enclosure 152. Preferably, the insertion protrusion and the support beam can be further connected by bolts to improve the connection reliability between the upper cover 151 and the lower enclosure 152.

[0163] In order to reduce wind resistance and improve structural strength, the upper cover 151 of the waterproof cover assembly 15 is a hemispherical structure, while the lower cover 152 can be either a cylindrical structure or a hemispherical structure.

[0164] In addition, an indicator light 17 is also provided on the upper cover 151. The indicator light 17 can serve as an indicator when the hydroelectric power generation equipment is floating in the sea at night, so as to improve the safety of use.

[0165] In one embodiment, when the water turbine drive module 2 includes multiple water turbine components, the multiple water turbine components are distributed sequentially from top to bottom.

[0166] Among them, such as Figure 1As shown, each of the water turbine assemblies includes two mounting discs and blades disposed between the two mounting discs; in two adjacent water turbine assemblies, the mounting disc at the bottom of the upper water turbine assembly is fixedly connected to the mounting disc at the top of the lower water turbine assembly.

[0167] Specifically, the water turbine drive module 2 can be configured with multiple water turbine components, which are stacked in the height direction to fully utilize the water depth for power generation. Adjacent water turbine components can be connected by bolts to their two mounting plates, thus assembling multiple water turbine components into a single structure.

[0168] In addition, such as Figure 11 As shown, in order to facilitate individual maintenance of each water turbine component in the later stage, the rotating main shaft 21 includes multiple rotating sub-shafts 211. The multiple rotating sub-shafts 211 are arranged coaxially, and two adjacent rotating sub-shafts 211 are detachably connected together. The rotating sub-shaft 211 at the top is detachably connected to the power input shaft 13. Each rotating sub-shaft 211 is equipped with a water turbine component.

[0169] Specifically, each rotating sub-shaft 211 is equipped with an independent water turbine assembly. During use, when a water turbine assembly is damaged and needs to be replaced or repaired, the rotating sub-shaft 211 corresponding to the damaged water turbine assembly can be disassembled separately, and the damaged water turbine assembly can be replaced individually, thereby improving the convenience of maintenance.

[0170] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vertical axis hydroelectric power generation device, characterized in that, include: A power generation module includes a floating platform, a generator, and a power input shaft. The power input shaft is arranged vertically and can be oscillatingly mounted on the floating platform. The generator is mounted on the floating platform, and the generator's motor shaft is connected to the power input shaft via a gearbox. A drive module, the drive module including a water turbine assembly, the water turbine assembly including multiple blades, the multiple blades being distributed around the rotation axis of the water turbine assembly, the water turbine assembly being connected to the power input shaft; A counterweight assembly includes a connecting rod, a rotating seat, a first anchor chain, and a first counterweight component. The lower end of the connecting rod is rotatably mounted on the rotating seat, and the first anchor chain connects the rotating seat and the first counterweight component. The upper end of the connecting rod is connected to the bottom of the turbine assembly. The rotating seat has a rotating mounting cavity and a through hole. A rotating support is provided at the lower part of the connecting rod, and the rotating support has a ring structure surrounding the outside of the connecting rod. The rotating support is rotatably mounted in the rotating mounting cavity, and the connecting rod extends through the through hole to the outside of the rotating seat. Two thrust ball bearings are provided in the rotating mounting cavity, arranged vertically, and the rotating support is located between the two thrust ball bearings. The vertical axis hydroelectric power generation equipment further includes: an anchoring module, which includes a deployment frame and multiple second counterweight components, the second counterweight components being mounted on the deployment frame; a second anchor chain is provided between the second counterweight components and the floating platform, the second anchor chain being inclined between the floating platform and the corresponding second counterweight component, the second anchor chain being inclined from top to bottom towards the outside of the floating platform; the deployment frame includes multiple telescopic beams, the telescopic beams being provided with locking components, the locking components being configured to lock the telescopic beams after they have extended or retracted to their positions; the multiple telescopic beams are connected end to end in sequence.

2. The vertical axis hydroelectric power generation equipment according to claim 1, characterized in that, The lower end of the connecting rod is also provided with a rotation limiting part, which has a circular structure and surrounds the outside of the connecting rod. The rotation limiting part is located below the rotation support part. The rotation limiting part also rests against the thrust ball bearing located at the bottom.

3. The vertical axis hydroelectric power generation equipment according to claim 1, characterized in that, The rotating seat includes an upper seat and a lower seat, and the upper seat is also provided with the through hole; The upper seat is disposed on the lower seat, and the upper seat and the lower seat form the rotary mounting cavity; The first anchor chain is connected to the upper seat or the lower seat.

4. The vertical axis hydroelectric power generation device according to claim 3, characterized in that, The lower surface of the upper seat is provided with a first mounting groove, and the first mounting groove and the lower seat form the rotating mounting cavity; And / or, the upper surface of the lower seat is provided with a second mounting groove, and the second mounting groove and the upper seat form the rotary mounting cavity.

5. The vertical axis hydroelectric power generation device according to any one of claims 1-4, characterized in that, The blade includes a mounting frame and multiple baffles. The mounting frame is provided with multiple through holes, and the baffles are hinged to the mounting frame and arranged at the corresponding through holes. The baffle is configured to close the through-port at the front side of the blade, and the blade is also configured to open the through-port at the back side of the blade.

6. The vertical axis hydroelectric power generation device according to claim 5, characterized in that, The drive module includes a rotary spindle, and the mounting frame is fixedly mounted on the rotary spindle; Alternatively, the drive module includes two mounting disks arranged vertically, multiple blades distributed around the axis of the mounting disks, and a vertically arranged mounting frame fixedly positioned between the two mounting disks.

7. The vertical axis hydroelectric power generation device according to any one of claims 1-4, characterized in that, The power generation module also includes: The self-balancing assembly includes a first frame and a second frame. A first rotating shaft is disposed on the first frame, and a second rotating shaft is disposed on the second frame. The axis of the first rotating shaft and the axis of the second rotating shaft are perpendicular to each other, and the second rotating shaft is rotatably disposed on the first frame. A first mounting port is disposed on the floating platform, the first frame is located in the first mounting port, the first rotating shaft is rotatably disposed on the floating platform, and a power input shaft is disposed on the second frame. The generator is fixed on the second frame, and the generator's motor shaft is connected to the power input shaft via a gearbox.

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