A hydroelectric power generation group

Abstract

The present invention discloses a water power generation group, which includes fixed piles, cables, and a power generation equipment array. The fixed piles are connected to the power generation equipment array through cables. The power generation equipment array floats on the river. The power generation equipment array is composed of a number of power generation equipment assemblies connected in series or in parallel, and each power generation equipment assembly faces the water flow direction of the river. Several fixed piles are built upstream of the river, and two or more main cables are installed on each fixed pile. Several branch cables are installed on the main cables as needed and clamped with a clamp. The other end of the branch cable is wound on a turntable. Two branch cables are fixed on the left and right sides of each power generation equipment assembly to automatically adjust the water level of the floating dock. A diversion slope is built on the riverbed below each power generation equipment assembly. The water power generation group of the present invention is installed with an artificial intelligence system, with low investment and operating costs, step-by-step investment, fast start-up, and no need for immigration.

Description

Technical Field

[0001] The present invention relates to the technical field of hydroelectric power generation, and in particular to an on-water power generation group of a large-scale power generation system. Technical Background

[0002] Hydropower is a clean energy source that is renewable, pollution-free, and has low operating costs. It is convenient for power peak regulation, which is conducive to improving resource utilization and the comprehensive benefits of the economy and society. Compared with other power generation technologies, it has very obvious development advantages. The hydropower generation using this dam-building method has good benefits, but it has large investments, takes a long time, submerges land resources, requires immigration, and has a huge amount of engineering work, which has an impact on the surrounding environment. Even after decades of development, the utilization rate of water resources is still very low. In 2020, China's installed capacity of hydropower generation reached 359.9 million kilowatts, and the hydropower generation was 1355.21 billion kilowatt-hours, accounting for 17.4% of the total power generation. The hydropower station uses the water potential energy at the high water level on the dam to convert it into kinetic energy, and when it sprays out from the dam mouth, it impacts the generator to generate electricity. At this time, the kinetic energy of the water is only used instantaneously. Although the power generation is large, the utilization rate of water energy is very low, and most of the energy is idle after being ejected from the dam mouth. There are thousands of river channels without hydropower stations, and the kinetic energy of the flowing water is huge, which is also idle. Many small hydropower stations have been abandoned due to the impact of damming on the downstream ecology, and have returned to the natural flow state without dams. If these idle water resources are effectively utilized, the amount of hydropower generated will increase exponentially.

[0003] There are already many patents for using flowing water to generate electricity, all of which are single equipment or devices. Even if they can generate electricity, they do not have much power generation capacity. Whether the water-based power generation equipment assembly can generate electricity for a long time depends on whether the power generation equipment assembly can be stably fixed on the riverbed with slow and fast water flow for a long time. Most patents do not involve the fixation of the power generation equipment assembly. Even if there are patents involving fixation, some design an anchor, some use steel ropes and iron anchors to fix the floating platform, and some use a steel wire rope to fix it on the banks on both sides of the riverbed in a constant direction, and install a cable on the steel wire rope to fix the generator. These methods are temporary fixation and are not suitable for long-term use. In particular, the fixation of the power generation group of multiple power generation equipment assemblies is a major issue involving long-term safe operation. It is estimated that when the water flow velocity of a 100KW water-based power generation equipment assembly is 2 to 5 meters per second, the pulling force required to fix the power generation equipment assembly is 15 to 40 tons. If each power generation equipment assembly is fixed with an anchor, it is difficult to form an overall efficient power generation group on the riverbed. If a fixed pile is used with two cables to fix 20 100KW generator sets in front and back, the pile needs to withstand a tensile force of more than 1,000 tons, and the two cables need to withstand a tensile force of more than 500 tons. If the requirements are not met, once the pile is loose or the cable breaks, there will be catastrophic consequences. Therefore, for the water power generation group, the setting of the fixed pile, the design of the cable, the fixation of the floating dock and the connection of the water level, as well as the reasonable connection of multiple power generation equipment assemblies, directly affect whether the power generation group can operate for a long time. Summary of the invention

[0004] In order to solve the problem of ensuring that a power generation group consisting of multiple power generation equipment assemblies can have overall power generation efficiency and long-term safe power generation on a river channel, the present invention systematically studies the arrangement of multiple power generation equipment assemblies, the setting of fixed piles, the design of main cables and branch cables, the fixation of floating docks and automatic adjustment of water levels, and the parallel connection of power generation equipment assemblies. According to the mechanical properties of water flow, different water surface gradients of rivers, uncertainties such as flood peaks and low water levels, an on-water power generation group and an installation method are designed.

[0005] The present invention is achieved through the following technical solutions:

[0006] A hydroelectric power generation group is composed of a power generation equipment array, fixed piles and cables. The power generation equipment array is composed of two or more power generation equipment assemblies connected in series or in parallel, and each power generation equipment assembly faces the water flow direction of the river; the power generation equipment array is composed of a number of power generation equipment assemblies adjacent to each other, aligned with each other, and connected in parallel to form a horizontal row; the power generation equipment array is provided with a number of power generation horizontal rows along the river direction, and a single power generation equipment of the next power generation horizontal row is connected in series with a single power generation equipment of the previous power generation horizontal row by cables to form a vertical row, and a gap is left between the next power generation horizontal row and the previous power generation horizontal row; the power generation equipment array is fixed on the river by fixed piles and cables.

[0007] Preferably, the fixing piles are fixedly installed upstream of the river, the fixing piles are higher than the riverbed, there are one or more fixing piles, and the bearing tension of each fixing pile is more than 100 tons.

[0008] Preferably, the cable comprises a main cable and a branch cable, the main cable is made of a rope folded in half, a main cable ring is provided at the folded part of the main cable, the main cable ring is mounted on a fixed pile, and each fixed pile is connected to two or more main cables; a branch cable ring is provided at the end of the branch cable, a plurality of branch cables are installed on the main cable, the main cable passes through the branch cable ring on the branch cable and is connected to the branch cable, and the connection between the main cable and the branch cable ring is clamped and fixed with a clamp.

[0009] Preferably, the load-bearing tension of the main cable is more than 50 tons, and the load-bearing tension of the branch cable is 10 to 30 tons; the main cable and the branch cable are carbon fiber cables, ultra-high molecular weight polyethylene cables, aramid cables or nylon cables.

[0010] Preferably, the power generation equipment assembly includes a left floating dock, a right floating dock, a generator, a roller impeller, a main shaft, a left bearing seat, and a right bearing seat. The roller impeller is installed on the main shaft. The main shaft is installed on the left floating dock and the right floating dock respectively through the left bearing seat and the right bearing seat. The roller impeller is located in the middle of the left floating dock and the right floating dock, and the roller impeller faces the water flow direction of the river. One end of the main shaft is connected to the input shaft of the generator through a coupling or a gearbox; the side of the left floating dock and the right floating dock Each of the two floating docks is provided with two branch cables, one end of which is fixedly connected to the main cable, and the other end of which is wound on a turntable. Each power generation equipment assembly is adjusted and fixed on the left and right sides by four branch cables. Water level sensors for measuring the water level of the floating dock are installed on the left and right floating docks. The water level sensors upload data to the Internet of Things gateway, and the Internet of Things gateway controls the rotation of the turntable on the water level regulator. The length of the branch cables is adjusted by rotating the turntable to achieve automatic adjustment of the water level of the floating dock.

[0011] Preferably, a diversion slope formed of stones or concrete is built on the riverbed below each horizontal row of power generation equipment. The diversion slope raises the water level and increases the drop of the inlet and outlet water flowing through the impeller of the power generation equipment, so as to improve the conversion efficiency of water energy into mechanical energy and improve the power generation efficiency.

[0012] Preferably, connecting plates are installed at the front and rear positions of the left floating dock or the right floating dock of the power generation equipment assembly, and the connecting plates connect and fix two adjacent power generation equipment assemblies together.

[0013] Preferably, the generator of each power generation equipment assembly is connected to a transmission line, and the transmission lines on each power generation equipment assembly of the water power generation group are connected in parallel to form a main transmission line for boosting and connecting to the power grid. Preferably, an interception and removal device is installed on the power generation equipment assembly or the main cable.

[0014] The present invention is implemented in the following manner:

[0015] 1. Layout of hydropower generation group.

[0016] The factors to be considered for the layout of the power generation group on the riverbed include the influence of water flow speed: the faster the water flow speed, the greater its kinetic energy and the more power it can generate. On the contrary, the slower the flow speed, the less power it can generate.

[0017] The horizontal layout of the power generation equipment assembly of the present invention: if there is no ship (such as the tailwater section of a dam-type power station), considering the resistance of the roller impeller to the water flow, to prevent water overflow, the left and right power generation equipment assemblies should be kept flush and filled with the riverbed as much as possible, and each row of power generation equipment assemblies seems to form a miniature dam; if there is a ship, space for the ship should be left. The present invention is preferably used in a river channel without ships and the tailwater section of a hydropower station.

[0018] The vertical layout of the power generation equipment assembly of the present invention: For the power generation equipment assemblies arranged upstream and downstream, the water flow speed of the downstream power generation equipment assembly is slowed down, the speed of the roller impeller is slowed down, and the power generation will be reduced. The power generation equipment assembly is installed with a water flow speed sensor and a gateway. The control platform gives instructions to automatically adjust the generator speed according to the water flow speed of each power generation equipment assembly to meet the power generation requirements. The water power generation group of the present invention is a plurality of power generation matrices installed along the riverbed. When the water flow speed is so slow that the power generation equipment assembly cannot generate economic benefits, the installation of the power generation equipment assembly downstream is stopped. When the riverbed turns or the cumulative cargo load of the vertical power generation equipment assembly reaches the cargo load of the cable or fixed pile, the fixed pile is reset and the power generation matrix is ​​rearranged.

[0019] 2. Fixation of hydropower generation group.

[0020] The present invention designs low fixed piles, main cables, and branch cables. According to the power generation group designed by the present invention, two main cables are set on both sides of the floating dock of the power generation equipment assembly to fix and pull the power generation equipment assembly. If 20 100KW power generation equipment assemblies are pulled along the way, the tension that each cable needs to withstand is at least 500 tons. Two cables are installed on a fixed pile, and the tension that each fixed pile needs to withstand is at least 1000 tons. If the fixed pile is higher than the ground, the water has an impact force on the fixed pile. Therefore, the fixed pile is designed to be low and slightly higher than the ground. The more power generation equipment assemblies pulled by the main cables, the lower the investment cost, and the higher the fixed tension that the fixed piles and main cables need to withstand.

[0021] 3. Stability of power generation equipment assembly and water level regulation.

[0022] The stability of a single power generation equipment assembly on water is affected by the water flow speed, especially when the water flow speed is high, the impact on the power generation equipment assembly will be very strong. In order to cope with the impact of high water flow speed, the present invention is designed to connect the horizontally arranged power generation equipment assemblies with the adjacent left and right power generation equipment assemblies into a whole through a lock, so as to stabilize the power generation equipment assembly.

[0023] The present invention designs two branch cables on both sides of a power generation equipment assembly. Therefore, each power generation equipment assembly has four branch cables, one end of which is fixed on the main cable and the other end is wound on the cable elevator rotary plate. Each power generation equipment assembly is equipped with a water level sensor and an Internet of Things gateway. The water level data obtained by the Internet of Things gateway is sent to the control platform. The system sends instructions to the cable elevator according to the data, instructing the cable elevator to control the length of the branch cables, so as to automatically adjust the water level of the floating dock, so as to stabilize the power generation equipment assembly and keep the roller impeller at the optimal power generation water level.

[0024] 4. Cable design.

[0025] The main cable is made by folding the cable in half, and the folded part is not woven together, leaving a loop. The loop of the cable is hung in the groove of the fixed pile to fix the upper end of the main cable, and the lower end of the main cable is used to fix the power generation equipment assembly.

[0026] The branch cable is also made by folding the cable in half, and a loop is retained at the fold. When in use, the main cable passes through the loop of the branch cable, and the branch cable is clamped with a clamp to fix the main cable end of the branch cable. The main cable and the branch cable are soaked in water for a long time, and the corrosion resistance of the main cable and the branch cable is the main guarantee for the long-term use of the power generation group. The present invention selects non-metallic carbon fiber cables, ultra-high molecular weight polyethylene cables, aramid fiber cables or nylon fiber cables.

[0027] 5. Artificial intelligence control.

[0028] The present invention installs a water flow velocity sensor, a roller impeller speed sensor, a floating dock water level sensor, and an Internet of Things gateway on each power generation equipment assembly, and sends the collected various data and power generation data to the control platform through NB-LOT or G4, realizing artificial intelligence management and reducing operating costs.

[0029] 6. Boost voltage and connect to the grid.

[0030] The transmission lines on the individual power generation equipment assemblies of the hydropower generation group are connected in parallel, boosted to the grid voltage, and connected to the grid.

[0031] The power generation group of the present invention has the following effects:

[0032] 1. The hydroelectric power generation group uses the kinetic energy of flowing water in rivers to generate electricity, which only reduces the water flow rate, does not affect the water flow, does not change the existing riverbed, does not require diversion, does not affect the ecology, and does not require immigration.

[0033] 2. The water power generation group can be installed along the river for a long distance downstream without affecting the navigation of ships.

[0034] 3. Compared with existing hydropower stations, the investment can be more or less, the project can be started quickly, and the power generation equipment assembly can be gradually accumulated.

[0035] 4. The investment in the water power generation group is less than 5,000 yuan / kilowatt, which is lower than the investment cost of hydropower station power generation, wind power generation, and solar power generation. The power generation of the water power generation group is managed by artificial intelligence, with low operating costs and good economic benefits.

[0036] 5. The flow of river water slows down after passing through the power generation group, which can reduce the damage caused by floods during floods.

[0037] 6. The installed capacity of a water-based power generation equipment assembly with a roller impeller diameter of 8 meters is 100KW. When installed on water with a water flow velocity of 1 to 4 meters per second, the power generation can reach 20 to 100KW. If a power generation group has 500 power generation equipment assemblies, the installed power generation capacity can reach 50,000 kilowatts. If there are 1,000 power generation groups with 500 power generation equipment assemblies, the installed power generation capacity can reach 50 million kilowatts. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of the hydroelectric power generation group of Example 1.

[0039] Figure 2 A schematic diagram of the structure of the hydroelectric power generation group of Example 2.

[0040] Figure 3 It is a longitudinal cross-sectional view of the hydroelectric power generation group.

[0041] Figure 4 It is the front view of the power generation equipment assembly.

[0042] Figure 5 It is a top view of the power generation equipment assembly.

[0043] Figure 6 It is a schematic diagram of the connection between the fixed piles and the main cables and branch cables.

[0044] Figure 7 This is a schematic diagram of the connection between the branch cable and the floating dock.

[0045] Figure 8 This is a schematic diagram of the connection between two adjacent floating docks.

[0046] In the attached figure:

[0047] 1. Fixed pile; 2. Main cable; 3. Diversion slope; 4. Branch cable; 5. Roller impeller; 51. Rotating wheel; 52. Blade; 6. Fixing parts; 7. Servo motor; 8. Turntable; 9. Left floating dock; 10. Generator; 11. Connecting plate; 12. Right floating dock; 13. Main shaft; 14. Left bearing seat; 15. Right bearing seat; 16. Generator horizontal row; 17. Power generation equipment assembly. DETAILED DESCRIPTION

[0048] The water power generation equipment assembly described in the following embodiment refers to any one of the above assemblies. For the sake of simplicity, the water power generation equipment assembly is drawn as a simplified diagram.

[0049] Example 1

[0050] like Figure 1 , Figure 3 As shown, a water power generation group includes a fixed pile 1, a main cable 2 and a branch cable 4, and a power generation equipment array. The fixed pile 1 is connected to the power generation equipment array through the cable, and the power generation equipment array floats on the river. The power generation equipment array is composed of a plurality of power generation equipment assemblies 17 connected in series or in parallel, and each power generation equipment assembly 17 faces the water flow direction of the river.

[0051] If the water flow velocity is lower than 2 m / s, a stone or concrete diversion slope 3 is built on the riverbed below each power generation equipment assembly 17. The diversion slope 3 raises the water level and increases the drop of the water inlet and outlet of the power equipment impeller to improve the conversion efficiency of water energy into mechanical energy and improve the power generation efficiency.

[0052] During construction, the river or tailwater of the dam-type power station where the hydroelectric power generation group is to be installed is first selected, and the fixed piles 1 are built by piling or pouring at the upstream position of the power generation equipment assembly 17. The tension of the fixed piles 1 is more than 1000 tons. A number of fixed piles 1 are set according to the width of the riverbed. In this embodiment, 20 fixed piles 1 are taken as an example.

[0053] like Figure 1 , Figure 6As shown, a pull rope with a load of more than 250 tons is folded in half to form a main pull rope 2 with a load of more than 500 tons. A main pull rope 2 ring is formed at the folded part. The size of the main pull rope 2 ring is adapted to the fixed pile 1. The main pull rope 2 ring is sleeved on the fixed pile 1. Two or more main pull ropes 2 are sleeved on each fixed pile 1. The main pull ropes 2 flow downstream. On the two main pull ropes 2 50 meters downstream of the fixed pile 1, each main pull rope 2 is 5 meters apart, and two branch pull ropes 4 are sleeved. The bearing tension of the branch pull rope 4 is 10 to 30 tons. The branch pull rope 4 is also made by folding the pull rope in half. A branch pull rope 4 ring is set at the folded part. The main pull rope 2 passes through the branch pull rope 4 ring and the end of the branch pull rope 4 ring is fixed with a fixing member 6. The fixing member 6 is a clamp, a lock, a ring, etc. The main cables 2 and branch cables 4 are carbon fiber cables, ultra-high molecular weight polyethylene cables, aramid cables or nylon cables. A group of branch cables 4 (two branch cables 4 in each group) is installed every 20 meters, and each group of branch cables 4 is 4 meters apart, and 20 groups are installed repeatedly. The power generation equipment assembly 17 is placed between the two main cables 2, so that each power generation equipment assembly 17 has a main cable 2 and two branch cables 4 on both sides.

[0054] like Figure 4 , Figure 5 , Figure 7As shown, each power generation equipment assembly 17 is composed of a left floating dock 9, a right floating dock 12, a generator 10, a roller impeller 5, a main shaft 13, a left bearing seat 14, and a right bearing seat 15. The roller impeller 5 is composed of a rotating wheel 51 and a plurality of blades 52. The rotating wheel 51 is a circular disc-shaped or wheel-shaped structure, which is made of metal material by casting or machining. The blades 52 are evenly installed on the rotating wheel 51 in a radial shape, and the blades 52 are connected to the rotating wheel 51 by welding, riveting, bolt connection or other methods. The rotating wheel 51 is installed on the main shaft 13 by welding, spline connection or other methods. The two ends of the main shaft 13 are respectively installed in the left bearing seat 14 and the right bearing seat 15. The left bearing seat 14 and the right bearing seat 15 are respectively fixedly installed on the left floating dock 9 and the right floating dock 12 by bolts. The floating dock is a prior art, and the floating dock is a hollow structure floating on the river. The roller impeller 5 is located in the middle of the left floating dock 9 and the right floating dock 12, and the blades 52 of the roller impeller 5 face the direction of the water flow of the river. One end of the main shaft 13 is connected to the input shaft of the generator 10 through a coupling or a gearbox. There are two branch cables 4 on the sides of the left floating dock 9 and the right floating dock 12. One end of the branch cable 4 is fixedly connected to the main cable 2 through a clamp, and the other end of the branch cable 4 is wound on the turntable 8. Each power generation equipment assembly 17 is adjusted and fixed on the left and right sides by four branch cables 4. Water level sensors for measuring the water level of the floating dock are installed on the left floating dock 9 and the right floating dock 12. The water level sensors upload data to the Internet of Things gateway, and the Internet of Things gateway controls the turntable 8 on the water level regulator to rotate. The turntable 8 is an electric turntable 8, or the turntable 8 is connected to the output shaft of the servo motor 7, and the servo motor 7 is installed on the left floating dock 9 and the right floating dock 12. The servo motor 7 drives the turntable 8 to rotate and adjust the length of the branch cable 4 to achieve automatic adjustment of the water level of the floating dock.

[0055] The present invention adjusts the lengths of the four branch cables 4 as needed to balance the power generation equipment assembly 17 and to keep the roller impeller 5 at the optimal water level. As in the above method, the second power generation equipment assembly 17, the third power generation equipment assembly 17, etc. are installed between the two main cables 2 until 20 power generation equipment assemblies 17 are installed. In this way, a power generation equipment string with 20 power generation equipment assemblies 17 is formed. Two main cables 2 are installed on the second fixed pile 1 close to the first fixed pile 1, and 20 power generation equipment assemblies 17 are also installed according to the above method to form a second power generation equipment string with 20 power generation equipment assemblies 17.

[0056] The second power generation equipment string is aligned with the first power generation equipment string, so that the two power generation equipment assemblies 17 of the same position in the two power generation equipment strings are aligned horizontally, and the left and right floating docks 12 of the two horizontally aligned power generation equipment assemblies 17 are fixedly connected front and back by installing connecting plates 11, so that the adjacent power generation equipment assemblies 17 are connected into a whole. Figure 8 Similarly, the installation of the third hydroelectric power generation equipment string is similar to that of the second hydroelectric power generation equipment string. A total of 25 hydroelectric power generation equipment strings are installed using the same method, and the adjacent hydroelectric power generation equipment assemblies 17 in the same horizontal row of the 25 hydroelectric power generation equipment strings are connected together by the connecting plate 11 to form a 25*20 hydroelectric power generation group of 500 hydroelectric power generation equipment assemblies 17, with an installed capacity of up to 50,000KW.

[0057] Example 2

[0058] like Figure 2 , Figure 3 As shown, a water power generation group includes a fixed pile 1, a main cable 2 and a branch cable 4, and a power generation equipment array. The fixed pile 1 is connected to the power generation equipment array through the main cable 2 and the branch cable 4. The power generation equipment array floats on the river. The power generation equipment array is composed of a plurality of power generation equipment assemblies 17 connected in series or in parallel, and each power generation equipment assembly 17 faces the water flow direction of the river. In this embodiment, the power generation equipment array is composed of a plurality of power generation rows 16, and the power generation row 16 is composed of a plurality of power generation equipment assemblies 17 arranged horizontally and connected to each other. The adjacent power generation equipment assemblies 17 on the left and right are flush with each other and tightly connected. A plurality of power generation rows 16 are arranged along the river direction, and a gap is left between the next power generation row 16 and the previous power generation row 16.

[0059] If the water flow speed is lower than 2 m / s, a stone or concrete diversion slope 3 is built on the riverbed below the power generation equipment assembly 17 of each power generation row 16. The diversion slope 3 raises the water level and increases the height difference between the inlet and outlet water of the power equipment impeller to improve the conversion efficiency of water energy into mechanical energy and improve the power generation efficiency.

[0060] During the actual construction, the river where the hydroelectric power generation group will be installed is first selected, and the fixed piles 1 are built at the upstream position of the river by piling or pouring, and the tension of the fixed piles 1 is more than 1,000 tons. A number of fixed piles 1 are set according to the width of the riverbed. In this embodiment, 15 fixed piles 1 are taken as an example: a main cable 2 with a load of more than 400 tons is made by folding a pull rope with a load of more than 200 tons in half, and a main cable 2 ring is made at the folded part. The size of the main cable 2 ring is adapted to the fixed pile 1, and the main cable 2 is sleeved on the fixed pile 1 through the main cable 2 ring. Five main cables 2 are sleeved on each fixed pile 1, and the main cables 2 flow downstream. Four power generation equipment assemblies 17 are installed side by side horizontally at appropriate positions of the five main cables 2, so that the four power generation equipment assemblies 17 are respectively located between the five main cables 2. The five main cables 2 are provided with a group of branch cables 4 (two branch cables 4) at the positions corresponding to the power generation equipment assembly 17, so that each power generation equipment assembly 17 has a main cable 2 and a group of branch cables 4 on both sides. The bearing tension of the branch cables 4 is 10-30 tons. The main cables 2 and the branch cables 4 are carbon fiber cables, ultra-high molecular weight polyethylene cables, aramid cables or nylon cables. One end of the branch cable 4 is made with a branch cable 4 ring, which passes through the main cable 2 through the branch cable 4 ring and is clamped and fixed with a clamp.

[0061] like Figure 4 , Figure 5 As shown, each power generation equipment assembly 17 includes a left floating dock 9, a right floating dock 12, a generator 10, a roller impeller 5, a main shaft 13, a left bearing seat 14, and a right bearing seat 15. The roller impeller 5 is installed on the main shaft 13, and the main shaft 13 is respectively installed on the left floating dock 9 and the right floating dock 12 through the left bearing seat 14 and the right bearing seat 15. The roller impeller 5 is located in the middle of the left floating dock 9 and the right floating dock 12, and the roller impeller 5 faces the water flow direction of the river. One end of the main shaft 13 is connected to the input shaft of the generator 10 through a coupling or a gearbox.

[0062] like Figure 6 , Figure 7As shown, the sides of the left and right floating docks 9 and 12 are each provided with a group of branch cables 4, one end of which is fixedly connected to the main cables 2, and the other end of which is wound on the turntable 8. Each power generation equipment assembly 17 is adjusted and fixed by four branch cables 4 on the left and right sides. The left and right floating docks 9 and 12 are both equipped with water level sensors for measuring the water level of the floating docks. The water level sensors upload data to the Internet of Things gateway, which controls the turntable 8 on the water level regulator to rotate. The turntable 8 is rotated to adjust the length of the branch cables 4, so as to automatically adjust the water level of the floating dock, so that the power generation equipment assembly 17 is balanced and the roller impeller 5 is at the optimal water level. The four power generation equipment assemblies 17 arranged side by side horizontally between the five main cables 2 are connected and fixed by a connecting plate 11: the front and rear positions of the left and right floating docks 12 of the adjacent power generation equipment assemblies 17 are fixed by the connecting plate 11, so that the four power generation equipment assemblies 17 arranged side by side horizontally are connected into a horizontal whole.

[0063] Similar to the above method, five main cables 2 are also installed on another adjacent fixed pile 1, and four power generation equipment assemblies 17 are installed side by side horizontally at the same position of the five main cables 2, so that these four power generation equipment assemblies 17 are horizontally fixedly connected with the above four power generation equipment assemblies 17 by connecting plates 11, connecting rods or other connecting devices to form a longer horizontal whole, such as Figure 8 As shown. Similarly, more power generation equipment assemblies 17 are installed side by side horizontally at the same position on the main cables 2 of more fixed piles 1 to form a power generation row 16. For example, 20 power generation equipment assemblies 17 installed side by side horizontally through the main cables 2 on five fixed piles 1 are connected to form a power generation row 16. Using the same method, multiple power generation rows 16 are installed at different positions of the main cables 2, and the spacing between each power generation row 16 is maintained at 3-20 meters. For example, 10 power generation rows 16 are installed on the main cables 2, and the spacing between each power generation row 16 is maintained at 6 meters, thus forming a 20*10 water power generation group of 200 power generation equipment assemblies 17, with an installed capacity of up to 20,000KW.

[0064] Example 3

[0065] As in Embodiment 1, the first water power generation group is installed. Piles are driven downstream of the first water power generation group to install the second water power generation group. If the river turns, the arrangement of the fixed piles 1 is installed perpendicular to the downstream river, so that the power generation equipment string of the water power generation group is roughly parallel to the direction of the river flow, or the power generation horizontal row 16 of the water power generation group is roughly perpendicular to the direction of the river flow. The above embodiments are only preferred embodiments of the present invention, not all embodiments. Two or more power generation equipment assemblies 17 are arranged horizontally, and two or more power generation equipment assemblies 17 are arranged vertically to form a power generation matrix, and these power generation matrices are the water power generation groups described in the present invention. Multiple power generation matrix arrangements also belong to the water power generation group of the present invention. As long as multiple water power generation equipment assemblies 17 are installed in series or in parallel, it is a water power generation group, and these changes and improvements fall within the scope of the present invention to be protected.

Claims

1. A water power generation group, comprising fixed piles, cables, and power generation equipment, characterized in that: The hydroelectric power generation group is composed of an array of power generation equipment, fixed piles and cables. The array of power generation equipment is composed of two or more power generation equipment assemblies connected in series or in parallel, and each power generation equipment assembly faces the water flow direction of the river; the array of power generation equipment is composed of several power generation equipment assemblies adjacent to each other, flush with each other, and connected in parallel to form a horizontal row; the array of power generation equipment is provided with several power generation rows along the river direction, and a single power generation equipment of the next power generation row is connected in series with a single power generation equipment of the previous power generation row by cables to form a vertical row, and a gap is left between the next power generation row and the previous power generation row; the array of power generation equipment is fixed to the river by fixed piles and cables, and the fixed piles are fixedly installed upstream of the river. The fixed piles are higher than the riverbed, and there are one or more fixed piles. The bearing tension of each fixed pile is more than 100 tons. The cables include main cables and branch cables. The main cables are made of ropes folded in half, and a main cable is provided at the fold of the main cable. A cable ring, wherein the main cable ring is mounted on a fixed pile, and each fixed pile is connected to two or more main cables; a branch cable ring is provided at the end of the branch cable, and a plurality of branch cables are installed on the main cable, and the main cable passes through the branch cable ring on the branch cable and is connected to the branch cable, and the connection between the main cable and the branch cable ring is clamped and fixed with a clamp, the bearing tension of the main cable is more than 50 tons, and the bearing tension of the branch cable is 10 to 30 tons; the main cable and the branch cable are carbon fiber cables, ultra-high molecular weight polyethylene cables, aramid cables or nylon cables, and connecting plates are installed at the front and rear positions of the left floating dock or the right floating dock of the power generation equipment assembly, and the connecting plates connect and fix two adjacent power generation equipment assemblies together, and the generator of each power generation equipment assembly is connected to the transmission line, and the transmission lines on each power generation equipment assembly of the water power generation group are connected in parallel to form a total transmission line for step-up and connection to the power grid.

2. The water power generation group according to claim 1, characterized in that: The power generation equipment assembly includes a left floating dock, a right floating dock, a generator, a roller impeller, a main shaft, a left bearing seat, and a right bearing seat. The roller impeller is installed on the main shaft. The main shaft is respectively installed on the left floating dock and the right floating dock through the left bearing seat and the right bearing seat. The roller impeller is located in the middle of the left floating dock and the right floating dock, and the roller impeller faces the water flow direction of the river. One end of the main shaft is connected to the input shaft of the generator through a coupling or a gearbox; two branch cables are provided on the sides of the left and right floating docks, one end of the branch cable is fixedly connected to the main cable, and the other end is wound on the turntable. Each power generation equipment assembly is adjusted and fixed by four branch cables on the left and right sides; the left and right floating docks are installed with water level sensors for measuring the water level of the floating docks. The water level sensors upload data to the Internet of Things gateway, and the Internet of Things gateway controls the rotation of the turntable on the water level regulator. The length of the branch cable is adjusted by the rotation of the turntable to realize automatic adjustment of the water level of the floating dock.

3. The water power generation group according to claim 1, characterized in that: A diversion slope formed by stones or concrete is built on the riverbed below the power generation horizontal row.

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