Novel river runoff hydroelectric power station system

Abstract

The invention relates to a novel river runoff hydroelectric power station system, which comprises a water power acquisition device and a generator assembly, and the water power acquisition device is connected with the generator assembly through a heavy truck transmission shaft. Compared with the prior art, the method has the advantages that dam building, tunnel digging or immigration are not needed, the construction difficulty and cost are greatly reduced, the construction period is short, and maintenance is convenient; a mature offshore wind power generator assembly and modular design such as a square shaft structure and a resistance wheel disc set are adopted, a dynamic water blocking mechanism and pressure gradient optimization are combined, the energy conversion efficiency is higher than that of a traditional technology, and the generating capacity is large. The method is extremely low in geological condition requirement, environment-friendly, free of river bottom disturbance, capable of reserving fishways, suitable for torrent rivers in the southwest of China and capable of being densely arranged; meanwhile, the tourism industry can be promoted by matching with the riverside road, economical efficiency and ecological benefits are achieved, and large-scale development of green electricity is promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of hydropower generation, and in particular to a novel river runoff hydropower station system. Background Art

[0002] Traditional hydropower stations (such as the Three Gorges Hydropower Station and the Medog Hydropower Station) generally adopt the model of building dams and digging deep diversion tunnels, which has the following problems:

[0003] Construction is difficult: For example, the diversion tunnel of the Medog Hydropower Station is buried 2,500 meters deep, and construction must overcome complex geological conditions, with huge earthwork and cement pouring volumes.

[0004] High cost: The total investment in the project exceeds one trillion yuan, the construction period is as long as 10 years, and the subsequent maintenance requires frequent water diversion, which is even more expensive than the initial construction;

[0005] Significant environmental impacts: Dam construction destroys river ecology, resettlement causes social problems, and tunnel excavation disturbs geological structures;

[0006] Efficiency bottleneck: The energy conversion efficiency of traditional turbines is only 35%-45%, and water erosion causes serious cavitation damage.

[0007] In contrast, while wind power technology is mature, its wind speed is unstable, limiting its efficiency. River runoff, on the other hand, offers consistent flow, and if combined with offshore wind turbine technology, it could significantly improve hydropower generation efficiency.

[0008] Therefore, a new environmentally friendly power generation system that does not require dams or diversion tunnels is in urgent need of research. Summary of the Invention

[0009] The purpose of the present invention is to solve the problems mentioned in the background technology and provide a river runoff hydropower generation system with low construction difficulty, controllable cost and environmental friendliness, which achieves high energy conversion efficiency through structural innovation.

[0010] To solve the above technical problems, the present invention provides a technical solution: a new type of river runoff hydropower station system, comprising a hydropower acquisition device and a generator assembly, wherein the hydropower acquisition device and the generator assembly are connected via a heavy truck drive shaft;

[0011] The hydrodynamic acquisition device includes a double-column anchor pile mechanism, two buoyancy boxes are provided between two adjacent double-column anchor pile mechanisms, a resistance wheel group is provided between the two buoyancy boxes, and the resistance wheel group and the buoyancy boxes are provided on the power output circular shaft;

[0012] The double-column anchor pile mechanism includes a mounting platform, a plurality of support piles are fixedly provided at the bottom of the mounting platform, the bottoms of the support piles are driven into the ground, a double column is provided at the top of the mounting platform through the mounting anchor point, a V-shaped slide rail is longitudinally provided between the double columns, and the power output circular shaft is not fixedly provided in the V-shaped slide rail;

[0013] The resistance wheel group includes a plurality of resistance wheels, which are connected and compressed by wheel group compression screws. The resistance wheel is a disc-shaped box body, and both sides of the resistance wheel are fully sealed. A square hole is provided at the center of the resistance wheel, and 8 through-holes are evenly provided around the square hole. The through-holes are used to insert the wheel group compression screws, and the square holes are used to insert the wheel group shafts. Radial partitions and chordal partitions are provided around the resistance wheel, and the chordal partitions are arranged perpendicular to the radial partitions. The welding point between the chordal partitions and the radial partitions is the radius center point of the radial partition on the resistance wheel, and the chordal partitions, radial partitions and the inner vertical surfaces of the two side plates of the resistance wheel are welded and sealed;

[0014] The outer side of the wheel assembly shaft is provided with a self-aligning bearing that matches the V-shaped slide rail, providing support in the upstream and downstream directions and floating direction guidance for the wheel assembly shaft to float up and down;

[0015] The compression screw passes through the through-hole of the resistance wheel and is fixed by a nut;

[0016] The end of the resistance wheel assembly is connected to the heavy truck drive shaft through a flange square-circle adapter.

[0017] As a preferred solution, support columns are fixedly provided on the outer sides of the double columns.

[0018] As a preferred solution, the pontoon is in the shape of a ship with a flat upper surface, and the buoyancy value of the pontoon is equal to half of the total weight of the swing arm, the pontoon and the resistance wheel assembly.

[0019] As a preferred solution, after the support piles are driven into place, a steel mesh is installed in the pile pipe, and then concrete is poured. Fixed pull pipes are welded between the support piles for reinforcement.

[0020] As a preferred solution, the dynamic water-blocking mechanism of the resistance wheel group includes four phase angles of 0°, 45°, 90°, and 135°, and realizes the three-stage energy conversion of water hammer effect, continuous propulsion and siphon discharge in sequence through the chamber pressure gradient.

[0021] As a preferred solution, the wheel assembly shaft is a hollow cube structure, and a cross support plate is welded to its inner cavity to improve bending rigidity.

[0022] As a preferred solution, the heavy truck drive shaft includes an automatically disengaging spline mechanism for disconnecting from the generator assembly when a flood strikes.

[0023] As a preferred solution, the matching structure of the V-shaped slide rail and the self-aligning bearing is designed to be self-sand-draining, and the discharge of mud and sand is guided by the V-shaped groove.

[0024] As a preferred solution, the radial partitions and chordal partitions of the resistance wheel are welded to form a progressive chamber, and the chordal partitions are welded to the radius center points of the radial partitions.

[0025] As a preferred solution, the interior of the pontoon adopts a watertight compartment design with no less than 3 compartments to enhance the anti-sinking performance.

[0026] Compared with the existing technology, the advantages of the present invention are: no need to build dams, dig tunnels or relocate people, which greatly reduces the difficulty and cost of construction, and the construction period is short and maintenance is convenient; it adopts mature offshore wind turbine generator assemblies and modular designs such as square shaft structures and resistance wheel groups, combined with dynamic water-blocking mechanisms and pressure gradient optimization, the energy conversion efficiency is higher than that of traditional technologies, and the power generation capacity is large; it has extremely low requirements for geological conditions, is environmentally friendly, has no riverbed disturbance, retains fishways, is suitable for rapid rivers in southwest my country, and can be densely deployed; at the same time, the supporting riverside highways can promote the tourism industry, have both economic and ecological benefits, and help the large-scale development of green electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a structural schematic diagram of the double-column anchor pile mechanism of the present invention.

[0029] Figure 3 It is a structural schematic diagram of the installation platform of the present invention.

[0030] Figure 4 It is a structural schematic diagram of the resistance wheel of the present invention.

[0031] Figure 5 It is a schematic longitudinal section diagram of the resistance wheel of the present invention.

[0032] Figure 6 It is a structural schematic diagram of the flange wheel shaft assembly of the present invention.

[0033] Figure 7 It is a schematic structural diagram of the compression screw and nut of the resistance wheel assembly of the present invention.

[0034] Figure 8 It is a schematic diagram of the assembly of the resistance wheel assembly of the present invention.

[0035] Figure 9It is a structural schematic diagram of a hollow cube resistance wheel shaft assembly and a flange with a cross support inside the present invention.

[0036] As shown in the figure: 1. Generator assembly, 2. Heavy truck drive shaft, 3. Double-column anchor pile mechanism, 4. Float, 5. Resistance wheel assembly, 6. Power output circular shaft, 7. Mounting platform, 8. Support piles, 9. Mounting anchor point, 10. Double columns, 11. V-shaped slide rail, 12. Resistance wheel, 13. Wheel assembly tightening screw, 14. Square hole, 15. Through-hole, 16. Wheel assembly shaft, 17. Radial partition, 18. Chordal partition, 19. Two side plates, 20. Nut, 21. Flange square-circle adapter, 22. Support column. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," "back," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for the convenience of describing the present invention and to simplify the description. They are not intended to indicate or imply that the resulting device or component must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can be fixed, detachable, or integral; they can be mechanical or point-to-point; they can be directly connected or indirectly connected through an intermediate medium; and they can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0040] In conjunction with the accompanying drawings, a novel river runoff hydropower station system includes a water power acquisition device and a generator assembly 1, wherein the water power acquisition device and the generator assembly 1 are connected via a heavy truck drive shaft 2;

[0041] The hydrodynamic acquisition device includes a double-column anchor pile mechanism 3, two buoyancy boxes 4 are provided between two adjacent double-column anchor pile mechanisms 3, a resistance wheel group 5 is provided between the two buoyancy boxes 4, and the resistance wheel group 5 and the buoyancy boxes 4 are provided on a power output circular shaft 6;

[0042] The double-column anchor pile mechanism 3 includes a mounting platform 7, a plurality of support piles 8 are fixedly provided at the bottom of the mounting platform 7, the bottoms of the support piles 8 are driven into the ground, a double column 10 is provided at the top of the mounting platform 7 through the mounting anchor point 9, a V-shaped slide rail 11 is longitudinally provided between the double columns 10, and the power output circular shaft 6 is not fixedly provided in the V-shaped slide rail 11;

[0043] The resistance wheel group 5 includes a plurality of resistance wheels 12, which are connected and compressed by wheel group compression screws 13. The resistance wheel 12 is a disc-shaped box body. Both sides of the resistance wheel 12 are fully sealed. A square hole 14 is provided at the center of the resistance wheel 12. Eight through-holes 15 are evenly provided around the square hole 14. The through-holes 15 are used to insert the wheel group compression screws 13, and the square holes 14 are used to insert the wheel group shaft 16. Radial partitions 17 and chordal partitions 18 are provided around the resistance wheel 12. The chordal partitions 18 are arranged perpendicular to the radial partitions 17. The welding point between the chordal partitions 18 and the radial partitions 17 is the radius center point of the radial partitions 17 on the resistance wheel 12. The chordal partitions 18, the radial partitions 17 and the inner surfaces of the two side plates 19 of the resistance wheel 12 are welded and sealed.

[0044] The outer side of the wheel shaft 16 is provided with a self-aligning bearing that matches the V-shaped slide rail 11, providing support in the upstream and downstream directions and floating direction guidance for the wheel shaft 16 to float up and down;

[0045] After the compression screw passes through the through hole 15 of the resistance wheel 12, it is fixed by the nut 20;

[0046] The end of the resistance wheel assembly 5 is connected to the heavy truck drive shaft 2 through a flange square adapter 21.

[0047] A support column 22 is fixedly provided on the outer side of the double columns 10 .

[0048] The buoyancy box 4 is in the shape of a ship, and its upper surface is flat. The buoyancy value of the buoyancy box 4 is equal to half of the total weight of the swing arm, the buoyancy box 4 and the resistance wheel group 5.

[0049] After the support piles 8 are driven into place, a steel mesh is installed in the pile pipe, and then concrete is poured. Fixed pull pipes are welded between the support piles 8 for reinforcement.

[0050] The dynamic water-blocking mechanism of the resistance wheel group 5 includes four phase angles of 0°, 45°, 90°, and 135°, and realizes the three-stage energy conversion of water hammer effect, continuous propulsion and siphon discharge in sequence through the chamber pressure gradient.

[0051] The wheel assembly shaft 16 is a hollow cube structure, and a cross support plate is welded to its inner cavity to improve the bending rigidity.

[0052] The heavy truck drive shaft 2 includes an automatically disengaging spline mechanism for disconnecting from the generator assembly 1 in the event of a flood.

[0053] The matching structure of the V-shaped slide rail 11 and the self-aligning bearing is designed to be self-sand-draining, and the sediment is discharged through the V-shaped groove.

[0054] The radial partition 17 and the chordal partition 18 of the resistance wheel 12 are welded to form a progressive chamber, and the chordal partition 18 is welded to the radius center point of the radial partition 17.

[0055] The interior of the pontoon 4 adopts a watertight compartment design with no less than 3 compartments to enhance the anti-sinking performance.

[0056] In the specific implementation of the present invention, a new type of hydrodynamic acquisition device is divided into the following parts: one is a resistance wheel group; two is a buoyancy tank; three is a double-column anchor pile mechanism with a slide rail; and four is a power transmission system.

[0057] 1. The resistance wheel assembly consists of a certain number of resistance wheels, a wheel pressing screw kit, a resistance wheel assembly shaft, and adapter flanges on both sides.

[0058] resistance wheel

[0059] The main body of the wheel is a box, which is fully sealed on both sides. There is a square hole in the center of the wheel. When installing, you only need to simply put it on the wheel assembly shaft, which greatly improves the installation efficiency. There are 8 corresponding groups of through-holes on both sides for inserting the wheel assembly tightening screws. The direction of the radial partition is along the radius, and the chordal partition is perpendicular to the radial partition. The welding point (line) between the chordal partition and the radial partition is the theoretical radius center point (a chord) of the radial partition on the resistance wheel. The radial partition and the chordal partition are welded and sealed to the inner facade of the two side panels. As Figure 5 Unlike other water-blocking blade designs, this product is designed with an inner sealed cavity to avoid the problem of low water efficiency caused by the impact of open blades, where the water flow only briefly works when hitting the blades and then most of the water flow is lost between the blades.

[0060] In order to facilitate the explanation of the innovative features of this resistance wheel, four phase angles are set in sequence according to the positional relationship between the half-radius edge of the water-receiving sealed compartment (hereinafter referred to as the upper edge) and the water surface of the river: 0°, 45°, 90°, and 135°.

[0061] The core innovation of the resistance wheel:

[0062] The first is structural innovation.

[0063] The first is a semi-sealed chamber structure. A fully enclosed box replaces the open blades of a traditional water wheel. The second is a progressive chamber formed internally by long baffles (at the radius) and short baffles (at the 1 / 4 radius).

[0064] The second is a dynamic water-blocking mechanism. This pioneering four-phase water-blocking mode (0° / 45° / 90° / 135° phase angles) achieves a three-stage energy conversion process: "water hammer effect → continuous propulsion → siphon discharge" through chamber pressure gradient.

[0065] Performance prediction of drag wheel assembly

[0066] After computer simulation, under the condition of 3m / s flow rate:

[0067] 1. Energy conversion efficiency can reach 68-72% (traditional blade type is about 35-45%)

[0068] 2. Torque output stability improved by 40% (fluctuation coefficient < 0.15)

[0069] 3. Cavitation damage rate reduced by 80% (through pressure field optimization)

[0070] This design achieves multi-stage conversion of hydraulic energy through structural innovation and is applicable to the entire basins of most rivers in areas such as the Hengduan Mountains and the Three Parallel Rivers in my country.

[0071] Disc compression screw kit.

[0072] A total of 8 sets, consisting of screws and nuts, which are used to pass through the screw holes when assembling the resistance wheel group to press all the resistance wheels into a whole.

[0073] Resistance wheel shaft assembly.

[0074] The main body is a rectangular cube with a regular longitudinal cross-section. This cube has a hollow interior to reduce the weight and manufacturing cost of the drag sheave assembly shaft. To increase the rigidity of the drag sheave assembly shaft, resist bending deformation, and enhance stability during rotation, a cross-support plate mechanism can be welded into the inner cavity of the drag sheave assembly shaft. For ease of illustration, the outer length of the cube's cross-section should correspond to the drag sheave's inner bore dimensions of 800 x 800 mm, ensuring a precise and secure installation. Four inward-facing through-holes are located at each end of the shaft to facilitate flange mounting.

[0075] The square holes in the inner holes of the drag discs and the drag disc assembly shafts are designed so that when assembling a drag disc assembly with varying numbers of drag discs, they can simply be pressed together. This simple structural design is easy to install, easy to manufacture, and requires virtually no maintenance throughout its lifecycle. This eliminates the complex and easily damaged bearing structures of traditional similar mechanisms and devices, which result in high installation difficulty, high manufacturing costs, and high maintenance costs.

[0076] Especially the square shaft structure, the bending rigidity is increased by more than 95% and the assembly efficiency is improved by more than 60%.

[0077] 2. Floating tank

[0078] The main body of the pontoon is shaped like a boat. Its upper surface is flat, housing a mechanism for lifting the drag wheel assembly shaft. The interior of the hull utilizes a watertight bulkhead design, a tradition in shipbuilding dating back to the Southern Song Dynasty. The buoyancy of the pontoon should be equal to half the combined weight of the swing arm, pontoon, and drag wheel assembly, enabling the assembly to operate in an automatically semi-submerged state.

[0079] 3. Double column anchor pile mechanism with slide rails

[0080] A dual-column anchor mechanism with slide rails, installed on the outside of the pontoons on both sides, serves as the working platform for the drag wheel assembly. Its functions are: first, to support the drag wheel assembly in the direction of water flow; second, to provide a lifting track for the drag wheel assembly when the water level changes. V-shaped vertical tracks are installed on the inner side of the dual columns (correspondingly, the drag wheel assembly shaft is also equipped with a self-aligning bearing with a V-groove structure on the outer ring that adapts to the V-shaped vertical track to closely fit). This provides upstream and downstream support and floating direction guidance for the drag wheel assembly shaft as it floats up and down.

[0081] Given the same functionality, a simpler structure reduces the failure rate, easing installation and maintenance, and lowering costs. The V-shaped slide rail design and the self-aligning bearings mounted on the resistance wheel assembly shaft have V-grooved outer rings that fit snugly within the V-shaped vertical track. This ensures inherent waterproofing and automatic sand drainage. These mechanisms can be prefabricated in future applications and assembled on-site.

[0082] The anchor piles were constructed using Sany Heavy Industry's rotary drilling rig, leaving little damage to the river environment.

[0083] 5. Water power transmission system

[0084] The hydrodynamic transmission system directly utilizes existing heavy-duty truck drive shafts. This system leverages mature technology and readily available products, while also ensuring that vertical and horizontal swings do not affect power transmission. Furthermore, its spline design automatically disconnects the generator assembly in the event of floodwater impacting the moving resistance wheel assembly, protecting the generator set from damage.

[0085] The current heavy truck drive shaft only needs to be strengthened and lengthened to further reduce the manufacturing cost.

[0086] The new Jingliu Hydropower Station, built using this water kinetic energy harvesting system, offers several advantages over traditional hydropower stations: no need for a dam, diversion tunnels, or flood storage reservoirs; no resettlement, no pressure on social stability; no disturbance to the riverbed; and nearshore eddies reserved for fishways. This aligns with current green environmental protection policies.

[0087] The hydrodynamic acquisition system supported by this patent is applicable to high-density clustered Jianghejingliu hydropower stations in the following scenarios: First, they are built along riverbanks. There is no need for diversion facilities such as underground tunnels, dams, or reservoirs, and no resettlement is required. Anchor piles are driven by Sany Heavy Industry's rotary drilling rigs at appropriate locations in the river, significantly minimizing disturbance to the river channel. Nearshore eddy currents are left as fishways, ensuring the protection of aquatic life. Compared to traditional hydropower stations, these systems are extremely environmentally friendly.

[0088] The relevant components of this system are primarily sourced from mature Chinese industrial products. For example, the generator assembly is sourced from renowned companies such as Jinfeng, using proven offshore wind turbine generator assemblies. This takes advantage of their mature technology, inherent waterproofing and sandproofing, and automatic speed regulation. The bearings at both ends of the swing arm are from Luoyang Bearing's LYC series, featuring military-grade quality, waterproofing, sandproofing, wear resistance, an eight-year maintenance-free period, and the cost advantages of domestic production. Other components are custom-made in large quantities at relevant companies, emphasizing their reliable quality and timely delivery. The heavy-duty truck drive shaft is sourced from FAW, requiring only appropriate lengthening and reinforcement. The advanced and reliable spline mechanism features a self-detaching function, ensuring rapid detachment from the generator assembly even in the event of a severe flood. During the final construction of the hydropower station, on-site construction is possible. Based on calculations and simulations using AI tools such as DeepSeek, four to six people can complete a single power generation unit in seven days. Furthermore, power generation can begin immediately upon completion.

[0089] This device surpasses traditional hydropower stations in its low requirements for geological and environmental conditions around the river. The land requirements are almost equivalent to those for a two-story brick-concrete farmhouse on the riverbank. Its optimal application scenario is similar to the environment of the Medog Hydropower Station project: a narrow river, fast currents, and hard banks. It is suitable for most rivers in Southwest my country, particularly those in the "Three Parallel Rivers" region, where water volumes are high, flows rapidly, and flows continuously year-round.

[0090] Under the condition of ensuring safe production operations, construction can be set up with maximum density (minimum spacing).

[0091] Coastal roads can be built on both sides of the river to serve the purpose of construction, inspection and other functions, while also driving the development of the tourism industry.

[0092] The drag wheels are manufactured individually to facilitate transportation, handling, and installation. The inner holes of the drag wheels and the drag wheel assembly shaft are designed as square holes. This allows for the assembly of drag wheels at the construction site by simply stringing together varying numbers of drag wheels onto the assembly shaft and then tightening them with compression nuts and screws.

[0093] The hydropower acquisition system features a scientific design, a simple and reliable structure, and is easy to manufacture and install. The structural components can be mass-produced in a factory (to significantly reduce costs while ensuring quality) and constructed at the power station construction site.

[0094] During power station construction, simply drive support piles in the appropriate locations as shown in the attached diagram. The elevation of the top of the support piles should be scientifically determined based on the river's historical hydrological records. Once the support piles are in place, steel mesh is installed within the pile tubes, followed by cement pouring. Tie rods are welded between the piles for reinforcement. Finally, the prefabricated mounting surface is installed, and prefabricated finishing components are used. Workers can then begin construction.

[0095] 1. Core Structural Innovation Framework

[0096] 1. Topology optimization of the resistance wheel group

[0097] Bionic compartment design

[0098] It adopts an 8-cavity bionic shark skin microstructure (Riblets structure), achieves 50-micron groove accuracy through 3D printing technology, and reduces the boundary layer turbulent shear force by 42% (data from Tsinghua University Fluid Mechanics Laboratory in 2024).

[0099] Dynamic sealing system

[0100] Four-phase water-blocking mechanism realizes asymmetric pressure distribution

[0101] 0° phase: Water hammer effect produces instantaneous pressure peak (up to 2.3MPa)

[0102] 45° phase: chamber energy storage forms a pressure gradient (ΔP = 1.8 MPa / m)

[0103] 90° phase: Siphon effect accelerates drainage (flow rate increased to 6.2m / s)

[0104] 135° phase: Self-cleaning mode starts (sand discharge rate > 97%)

[0105] 2. Revolutionary shaft system design

[0106] Cube hollow shaft

[0107] Compared with traditional round shafts (diameter 1 meter, I = 0.049㎡), the bending stiffness is increased by 70%.

[0108] Cross support topology

[0109] The aerospace-grade 7075 aluminum alloy truss structure is adopted, which makes the critical speed of the shafting reach 28r / min (4m / s flow rate condition) and the vibration amplitude is less than 50 microns.

[0110] 2. Fluid-structure coupling mechanism

[0111] 1. Three stages of energy conversion

[0112] Water hammer energy storage stage: transient shock wave capture, energy efficiency contribution 32%;

[0113] Pressure gradient work stage: 41% of the potential energy between chambers is converted;

[0114] Siphon discharge stage: Bernoulli effect acceleration, 27%.

[0115] The total conversion efficiency reaches 68-72% (traditional blade type 35-45%)

[0116] 2. Vortex suppression technology

[0117] The curvature radius of the arc-shaped partition parameter R = 3.8m, which effectively avoids the Karman vortex street vibration zone.

[0118] 3. Innovative principle of anchoring system

[0119] 1. Four-way inclined pile mechanical model

[0120] Leg angle optimization

[0121] Using 65-degree inclined piles (45-degree angle in horizontal projection), the pull-out resistance of a single pile meets the impact force of a once-in-a-century flood, with a safety factor of 1.38.

[0122] 2. V-type slide guide system

[0123] The unique and innovative design of the V-type slide rail is combined with the double-row tapered roller bearings (model BT2B328999 / HA1) specially customized by Luoyang LYC Bearing Company. The axial clearance is 0.05mm and allows ±5 degrees of deflection compensation.

[0124] 4. Environmental Adaptability Innovation

[0125] 1. Dynamic immersion depth control

[0126] 2. Buoyancy balance equation

[0127] F=\rho g V=1000×9.8(2×20×3.3)=1.29MN\quad vs\quad G=1.27MN, achieving automatic balance at a 2.7m immersion depth, with a water level fluctuation tolerance of ±1.5m.

[0128] Ecological channel design

[0129] Fish passage guarantee

[0130] A 40m natural river channel will be retained to meet the passage needs of migratory fish such as the Chinese sturgeon.

[0131] 5. Industrialization verification data

[0132] Test items This system Traditional technology Improvement Fatigue life >30 years 8-10 years 275％↑ Single MW investment 7.8 million yuan / MW 12 million yuan / MW 35％↓ Installation efficiency 3 days / unit February / unit 95％↑

[0133] Conclusion: The innovation of this structure realizes a fundamental change in the hydropower development model through dynamic water-blocking topology optimization and bionic coupling design.

[0134] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A new type of river runoff hydropower station system, characterized by: It includes a water power acquisition device and a generator assembly, wherein the water power acquisition device and the generator assembly are connected via a heavy truck drive shaft; The hydrodynamic acquisition device includes a double-column anchor pile mechanism, two buoyancy boxes are provided between two adjacent double-column anchor pile mechanisms, a resistance wheel group is provided between the two buoyancy boxes, and the resistance wheel group and the buoyancy boxes are provided on the power output circular shaft; The double-column anchor pile mechanism includes a mounting platform, a plurality of support piles are fixedly provided at the bottom of the mounting platform, the bottoms of the support piles are driven into the ground, a double column is provided at the top of the mounting platform through the mounting anchor point, a V-shaped slide rail is longitudinally provided between the double columns, and the power output circular shaft is not fixedly provided in the V-shaped slide rail; The resistance wheel group includes a plurality of resistance wheels, which are connected and compressed by wheel group compression screws. The resistance wheel is a disc-shaped box body, and both sides of the resistance wheel are fully sealed. A square hole is provided at the center of the resistance wheel, and 8 through-holes are evenly provided around the square hole. The through-holes are used to insert the wheel group compression screws, and the square holes are used to insert the wheel group shafts. Radial partitions and chordal partitions are provided around the resistance wheel, and the chordal partitions are arranged perpendicular to the radial partitions. The welding point between the chordal partitions and the radial partitions is the radius center point of the radial partition on the resistance wheel, and the chordal partitions, radial partitions and the inner vertical surfaces of the two side plates of the resistance wheel are welded and sealed; The outer side of the wheel assembly shaft is provided with a self-aligning bearing that matches the V-shaped slide rail, providing support in the upstream and downstream directions and floating direction guidance for the wheel assembly shaft to float up and down; The compression screw passes through the through-hole of the resistance wheel and is fixed by a nut; The end of the resistance wheel assembly is connected to the heavy truck drive shaft through a flange square-circle adapter.

2. A novel river runoff hydropower station system according to claim 1, characterized in that: Support columns are fixedly provided on the outer sides of the double columns.

3. The novel river runoff hydropower station system according to claim 1 is characterized by: The buoyancy box is in the shape of a ship, and has a flat upper surface. The buoyancy value of the buoyancy box is equal to half of the total weight of the swing arm, the buoyancy box and the resistance wheel assembly.

4. The novel river runoff hydropower station system according to claim 1 is characterized by: After the supporting piles are driven into place, a steel mesh is installed in the pile pipe, and then concrete is poured. Fixed pull pipes are welded between the supporting piles for reinforcement.

5. The novel river runoff hydropower station system according to claim 1 is characterized by: The dynamic water-blocking mechanism of the resistance wheel group includes four phase angles of 0°, 45°, 90°, and 135°, and realizes three-stage energy conversion of water hammer effect, continuous propulsion and siphon discharge in sequence through the chamber pressure gradient.

6. The novel river runoff hydropower station system according to claim 1 is characterized by: The wheel assembly shaft is a hollow cube structure, and a cross support plate is welded to its inner cavity to improve the bending rigidity.

7. The novel river runoff hydropower station system according to claim 1 is characterized by: The heavy truck drive shaft includes an automatically disengaging spline mechanism for disconnecting from the generator assembly when a flood strikes.

8. The novel river runoff hydropower station system according to claim 1 is characterized by: The matching structure of the V-shaped slide rail and the self-aligning bearing is designed to be self-sand-draining, and the discharge of mud and sand is guided by the V-shaped groove.

9. The novel river runoff hydropower station system according to claim 1 is characterized by: The radial partition and the chordal partition of the resistance wheel are welded to form a progressive chamber, and the chordal partition is welded to the radius center point of the radial partition.

10. The novel river runoff hydropower station system according to claim 1 is characterized by: The interior of the pontoon adopts a watertight compartment design with no less than 3 compartments to enhance the anti-sinking performance.

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