An adaptive efficiency-enhancing impeller and a groupable ocean current power generation device

Abstract

The present invention provides an adaptive efficiency-enhancing impeller and a groupable ocean current power generation device. The adaptive efficiency-enhancing impeller includes: a plurality of rotatable blades, each blade being spaced apart and arranged vertically; a pair of blade supports that can be used to place blades and various limiters, each blade support being arranged at both ends of each blade; a vertical shaft, the vertical shaft penetrating the center of each blade support, and each blade being arranged between each blade support in four or six equal parts around the vertical shaft; wherein, a plurality of energy-gaining limiters and a plurality of efficiency-enhancing limiters are arranged on each blade support, each energy-gaining limiter and each efficiency-enhancing limiter are arranged corresponding to each blade; the energy-gaining limiter and the efficiency-enhancing limiter are used to limit the blades. In the present invention, the adaptive efficiency-enhancing impeller is in a vertical axis type by the arrangement of the vertical shaft, and combined with the arrangement of the blades, the adaptive efficiency-enhancing impeller can adapt to the direction of the ocean current.

Description

Technical Field

[0001] The invention relates to the technical field of hydropower generation, and in particular to an adaptive efficiency-enhancing impeller and a groupable ocean current power generation device. Background Art

[0002] Ocean current power generation is a technology that uses the movement of water in the ocean to generate electricity. Because ocean current power generation uses the constantly moving water in the ocean to generate electricity, it has the advantages of being renewable, stable and low in carbon emissions, so people are increasingly applying ocean current power generation.

[0003] However, most of the existing commercial ocean current power generation technologies use tidal energy, which uses the ebb and flow of tides to generate electricity. It has high requirements for site selection and cannot adapt to the changing direction of water flow. It is suitable for nearshore areas with a certain direction of water flow, such as straits, bays or other narrow waters, so there are fewer application scenarios.

[0004] Therefore, the existing technology still needs to be improved and developed. Summary of the invention

[0005] In view of the above-mentioned deficiencies of the prior art, the object of the present invention is to provide an adaptive efficiency-enhancing impeller and a groupable ocean current power generation device, aiming to solve the technical problem in the prior art that ocean current power generation cannot adapt to the changing direction of water flow.

[0006] The technical solution of the present invention is as follows: an adaptive efficiency-enhancing impeller is provided for ocean current power generation, comprising: a plurality of rotatable blades, each of the blades being spaced apart and vertically arranged; a pair of blade supports, each of the blade supports being arranged at both ends of each of the blades; a vertical shaft, the vertical shaft penetrating the center of each of the blade supports, and each of the blades being arranged between each of the blade supports around the vertical shaft; wherein a plurality of energy-harvesting limiters and a plurality of efficiency-enhancing limiters are arranged on each of the blade supports, and each of the energy-harvesting limiters and each of the efficiency-enhancing limiters are arranged corresponding to each of the blades; the energy-harvesting limiters and the efficiency-enhancing limiters are used to limit the blades, so that when the adaptive efficiency-enhancing impeller rotates under the impact of ocean current, the blades provide positive torque for the rotation of the adaptive efficiency-enhancing impeller.

[0007] The adaptive efficiency-enhancing impeller, wherein the energy-harvesting limiter and the efficiency-enhancing limiter are respectively arranged on both sides of the blade; the blade support is a disc; and on each of the discs, each of the efficiency-enhancing limiters and each of the energy-harvesting limiters are arranged in a circle along the vertical axis on the disc.

[0008] The adaptive efficiency-enhancing impeller, wherein, on each of the discs, the radius of the circle formed by the arrangement of each of the energy-gaining limiters is smaller than the radius of the circle formed by the arrangement of each of the efficiency-enhancing limiters.

[0009] The adaptive efficiency-enhancing impeller, wherein the blades are ribbed blades.

[0010] The adaptive efficiency-enhancing impeller, wherein the blades are made of stainless steel, titanium alloy, nickel-based alloy, aluminum alloy or ceramic material.

[0011] On the other hand, the present invention also provides a groupable ocean current power generation device, which includes: a floating platform, a generator set arranged on the platform of the floating platform, and a plurality of adaptive efficiency-enhancing impellers as described above, which are connected to the floating platform through a transmission assembly; wherein the adaptive efficiency-enhancing impeller and the generator set are respectively arranged on both sides of the floating platform.

[0012] The groupable ocean current power generation device, wherein the floating platform further comprises: a truss structure and a plurality of floating blocks, the truss structure and the floating blocks are arranged at the bottom of the platform of the floating platform, and the floating blocks are embedded in each of the truss structures.

[0013] The groupable ocean current power generation device, wherein the generator set is arranged on the platform of the floating platform through a gear chain.

[0014] The groupable ocean current power generation device, wherein the transmission assembly comprises: a plurality of transmission shafts, one end of each of the transmission shafts is connected to the gear chain, and the other end of each of the transmission shafts is connected to the vertical shaft.

[0015] The present invention provides an adaptive efficiency-enhancing impeller and a groupable ocean current power generation device having the following beneficial effects:

[0016] The adaptive enhancement impeller is in a vertical shaft type through the arrangement of the vertical shaft rod, and combined with the arrangement of the blades, the adaptive enhancement impeller can adapt to the direction of the ocean current;

[0017] By limiting the blades by the energy gain limiter and the efficiency enhancement limiter, when the adaptive efficiency enhancement impeller rotates under the impact of the ocean current, the blades can provide a positive torque enhancement effect for the rotation of the adaptive efficiency enhancement impeller over a large range;

[0018] The blades are ribbed, which can play a better role in "carrying water" under the action of water flow, capture more kinetic energy of water, and have higher energy acquisition efficiency than flat blades;

[0019] By adding an efficiency-enhancing limiter, the energy-enhancing range of the blades is increased, so that the blades can continue to obtain energy in the upstream area to provide positive torque for the impeller to rotate. The energy-enhancing area accounts for three quarters of the entire impeller. In the remaining quarter of the area where the blades fail to obtain energy, the blades always remain parallel to the water flow direction, and the negative torque that is not conducive to the rotation of the impeller is basically negligible, which also plays an alternative efficiency-enhancing effect.

[0020] The groupable type is reflected in the fact that each floating platform, the generator set it carries and the appropriate number of impellers form a complete unit module. Each unit can work normally alone, and there are simple splicing interfaces between each unit module. The purpose is to be able to flexibly and reasonably deploy the size of the entire power generation platform according to the actual water conditions, thereby improving the utilization rate of the equipment and natural resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a six-blade adaptive efficiency-enhancing impeller provided by the present invention;

[0023] Figure 2 A schematic diagram of the three-dimensional structure of a four-blade adaptive efficiency-enhancing impeller provided by the present invention;

[0024] Figure 3 for Figure 2 Schematic diagram of the rotation principle of the four blades in the adaptive efficiency-enhancing impeller described in;

[0025] Figure 4 for Figure 2 Another schematic diagram of the rotation principle of the four blades in the adaptive efficiency-enhancing impeller described in;

[0026] Figure 5 for Figure 1 Schematic diagram of the rotation principle of the six blades in the adaptive efficiency-enhancing impeller described in;

[0027] Figure 6 A schematic diagram of the three-dimensional structure of a groupable ocean current power generation device provided by the present invention at one angle;

[0028] Figure 7 A schematic diagram of the three-dimensional structure from another angle of a groupable ocean current power generation device provided by the present invention.

[0029] Among them, 100, adaptive efficiency-enhancing impeller; 200, floating platform; 300, transmission assembly; 400, generator set; 10, blades; 20, disc; 30, vertical shaft; 40, efficiency-enhancing limiter; 50, energy-gaining limiter; 210, truss structure; 220, floating block; 230, gear chain; 310, transmission shaft. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Ocean current power generation is a technology that uses the movement of water in the ocean to generate electricity. Due to its many advantages such as renewable, stable and low carbon emissions, more and more people are beginning to pay attention to and apply ocean current power generation technology. However, the current commercial projects that use ocean current power generation are mainly focused on tidal energy. Tidal power generation uses the rise and fall of tides to generate electricity, which usually requires specific geographical conditions and stability of water flow direction, such as nearshore, straits or bays and other narrow waters, and has limited working hours per day. These limitations have led to relatively few application scenarios for ocean current power generation technology.

[0032] In addition, currently available group-type ocean current power generation devices are mostly installed in a fixed manner on the seabed, which is not only difficult to engineer and operate and maintain in the later stage, but also has the problem of low efficiency in obtaining overall water flow energy within a depth range.

[0033] Therefore, in order to solve the above technical problems, Figures 1 to 6 As shown, the present invention provides an adaptive efficiency-enhancing impeller 100 and a groupable ocean current power generation device.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the adaptive enhancement impeller 100 comprises: a plurality of rotatable blades 10, a pair of blade brackets, and a vertical shaft 30. Each of the blades 10 is evenly spaced and vertically arranged; each of the blade brackets is arranged at both ends of each of the blades 10; the vertical shaft 30 is passed through the center of each of the blade brackets, and each of the blades 10 is arranged between each of the blade brackets around the vertical shaft 30; wherein, a plurality of energy-gaining stoppers 50 and a plurality of enhancement stoppers 40 are arranged on each of the blade brackets, and each of the energy-gaining stoppers 50 and each of the enhancement stoppers 40 are arranged corresponding to each of the blades 10; the energy-gaining stoppers 50 and the enhancement stoppers 40 are used to limit the blades 10, so that when the adaptive enhancement impeller 100 rotates under the impact of the ocean current, the blades 10 provide a wide range of positive torque for the rotation of the adaptive enhancement impeller 100.

[0035] Furthermore, in the embodiment of the present invention, the blade support may be a disk 20. The self-adaptive efficiency-enhancing impeller 100 is described as having four blades 10. In other embodiments, the self-adaptive efficiency-enhancing impeller 100 may have other numbers of blades, such as Figure 5 There may be six blades 10 in the embodiment.

[0036] Specifically, different from the horizontal axis ocean current power generation equipment in the prior art, the adaptive enhancement impeller 100 provided by the present invention is specifically a vertical axis adaptive enhancement impeller 100, that is, when the adaptive enhancement impeller 100 enters the ocean current to perform ocean current power generation, the adaptive enhancement impeller 100 is perpendicular to the water flow direction. The adaptive enhancement impeller 100 has a plurality of blades 10, and each blade 10 is arranged between the first pair of the disks 20, and the two disks 20 are separated at both ends of each blade 10 to form the upper and lower disks 20.

[0037] Furthermore, unlike the ocean current power generation equipment in the prior art which cannot adapt to the change of water flow direction and is only applicable to the tidal flow working scenarios near the shore with a certain water flow direction, each of the adaptive enhancement impellers 100 in the present invention can rotate driven by water flow in any direction, thereby achieving the effect of adaptively adapting to water flow in any direction.

[0038] In addition, the disk 20 is only an example of a usable method. In other embodiments, the disk 20 can also be set as other devices or shapes to achieve the function of the disk 20. In the present invention, the purpose of the disk 20 is to install the blade 10 and set the energy-harvesting limiter 50 and the efficiency-enhancing limiter 40. In other embodiments, the disk can also be replaced with other forms, which can be used as a mounting frame for the blade 10, the energy-harvesting limiter 50 and the efficiency-enhancing limiter 40.

[0039] The vertical shaft 30 passes through the center of the disk 20 at both ends of each blade 10, and the rotational torque obtained by each blade 10 is finally gathered on the vertical shaft 30. The vertical shaft 30 is connected to the transmission shaft 310 upward, and the transmission shaft 310 is connected to the transmission mechanism such as the gear chain 230 on the floating platform 200, and finally the torque is transmitted from the adaptive efficiency-enhancing impeller 100 to the generator set 400, so as to achieve the final conversion of water flow energy into mechanical energy and mechanical energy into electrical energy.

[0040] In addition, a plurality of energy-harvesting limiters 50 and a plurality of efficiency-enhancing limiters 40 are provided on each of the disks 20 to limit the rotation of each of the blades 10. Correspondingly, the energy-harvesting limiters 50 and the efficiency-enhancing limiters 40 are provided corresponding to the blades 10. That is, two energy-harvesting limiters 50 and two efficiency-enhancing limiters 40 are provided on both sides of a blade 10, respectively, to limit the rotation of the blade 10, so that when the adaptive efficiency-enhancing impeller 100 rotates under the impact of the ocean current, the blade 10 provides a positive torque for the rotation of the adaptive efficiency-enhancing impeller 100.

[0041] The following is an explanation of the working principle of the rotation of the blade 10. Figures 1 to 4 In the present invention, if Figure 3 , Figure 4 and Figure 5 As shown, for each of the blades 10, when the disc 20 rotates, the rotation area of ​​the blade 10 can be divided into four rotation areas of the blade 10 using auxiliary lines corresponding to the disc 20. Here, one current direction is used for explanation, and the working principles of the other current directions are similar.

[0042] For example, in the present invention, the rotation area of ​​the blade 10 is divided into four areas corresponding to the disk 20, which are respectively named as energy acquisition area 1 A, energy acquisition area 2 B, efficiency enhancement area C and free state area D, and it is assumed that the direction of the ocean current is as follows: Figure 4 shown.

[0043] When the blade 10 is located at the corresponding position of the energy harvesting zone 1, under the action of the ocean current, the blade 10 will be pushed by the ocean current to rotate to a position close to the energy harvesting limiter 50. At this time, the blade 10 will effectively capture the kinetic energy of seawater under the action of the ocean current, and the torque generated by the blade 10 on the vertical shaft 30 will cause the adaptive efficiency-enhancing impeller 100 to rotate in a clockwise (counterclockwise) direction.

[0044] Furthermore, when the adaptive efficiency-enhancing impeller 100 continues to rotate from energy acquisition zone 1, and the blades 10 rotate from energy acquisition zone 1 A to energy acquisition zone 2 B, at this time, the blades 10 will continue to obtain energy under the positive impact of the ocean current to provide a positive torque for rotation of the adaptive efficiency-enhancing impeller 100.

[0045] Furthermore, when the adaptive enhancement impeller 100 rotates in energy acquisition zone 1 A and energy acquisition zone 2 B, the blades 10 can always lean against the energy acquisition limiter 50 under the impact of water flow, so that the blades 10 can smoothly and continuously acquire energy to provide a positive torque for the rotation of the adaptive enhancement impeller 100.

[0046] Furthermore, when the adaptive boost impeller 100 continues to rotate from the energy acquisition zone 2 B, and the blade 10 moves from the energy acquisition zone 2 B to the boost zone C, the blade 10 will be affected by the thrust of the ocean current, and the blade 10 will begin to rotate away from the energy acquisition stopper 50 with the axis of the blade 10 as the center, and will rotate until the blade 10 contacts the boost stopper 40, and the blade 10 will complete this rotation process very quickly. In this way, when the blade 10 is limited by the boost stopper 40, the blade 10 can still capture the kinetic energy of the ocean current to perform positive work under the impact of the ocean current, and at this time, the torque generated by the blade 10 on the vertical shaft 30 under the action of the ocean current is still positive. Therefore, the blades 10 in the enhancement zone C can still provide a favorable positive torque for the rotation of the entire adaptive enhancement impeller 100, and the resultant force point where the blades 10 obtain energy in the enhancement zone C is farther away from the vertical shaft 30, and the lever arm will become longer. Therefore, at this time, the torque provided by the blades 10 to the entire adaptive enhancement impeller 100 will be greater, thereby playing an enhancement role.

[0047] Furthermore, when the blade 10 rotates from the efficiency zone C to the free state zone D, the blade 10 can continuously adjust its position during rotation in the free state zone D, so that the blade 10 is always adaptively parallel to the direction of the ocean current. In this way, the effective area of ​​the blade 10 impacted by the ocean current is almost very small, so the negative torque generated by the blade 10 on the vertical shaft 30 is also very small, so it can be ignored.

[0048] Finally, the adaptive efficiency-enhancing impeller 100 will continue to rotate from the free state area D and return to the energy-enhancing area 1 A to perform normal energy-enhancing work. The adaptive efficiency-enhancing impeller 100 will repeat the above cycle during rotation to achieve the adaptive efficiency-enhancing effect. The blade 10 can provide a positive torque to the rotation of the adaptive efficiency-enhancing impeller 100 during three-quarters of the rotation process.

[0049] Therefore, the adaptive enhancement impeller 100 provided by the present invention adopts a vertical axis design so that it can adapt to the direction of the ocean current; the blade 10 adopts a ribbed method to improve the energy acquisition efficiency. In addition, the blade 10 is correspondingly limited by the energy acquisition limiter 50 and the enhancement limiter 40, so that when the adaptive enhancement impeller 100 rotates under the impact of the ocean current, the blade 10 can provide a large area of ​​positive torque for the rotation of the adaptive enhancement impeller 100.

[0050] In the present invention, the number of the blades 10 is six for illustration. In other embodiments, the number of the blades 10 may be four, eight, etc., but is not limited thereto.

[0051] In a possible implementation manner, the energy harvesting stopper 50 and the efficiency enhancing stopper 40 are respectively arranged on both sides of the blade 10; and on each of the disks 20, each of the energy harvesting stopper 50 and each of the efficiency enhancing stopper 40 are arranged in a circle on the disk 20 along the vertical shaft 30. In addition, on each of the disks 20, the radius of the circle formed by the arrangement of each of the energy harvesting stoppers 50 is smaller than the radius of the circle formed by the arrangement of each of the efficiency enhancing stoppers 40.

[0052] Specifically, when the blade 10 is against the energy harvesting stopper 50 , the energy harvesting stopper 50 , the center of the adaptive efficiency-enhancing impeller 100 , and the rotation axis of the blade 10 are located on the same straight line.

[0053] In addition, regarding the position setting of the enhancement stopper 40, the angle formed by the line connecting the center of the adaptive enhancement impeller 100, the rotation axis of the blade 10 and the enhancement stopper 40 is slightly greater than 90°. Therefore, when the blade 10 leans against the enhancement stopper 40, the center of the adaptive enhancement impeller 100 and the direction of the blade 10 form a 90° effect.

[0054] Furthermore, in a possible embodiment, in the present invention, each of the blades 10 is a ribbed blade, that is, a blade 10 formed by multiple ribs is provided on the basis of an ordinary flat blade. In addition, in order to prevent the seawater from corroding the blade 10, the blade 10 can be lightweight and made of a hard material resistant to seawater corrosion. Specifically, the blade 10 can be made of stainless steel, titanium alloy, nickel-based alloy or aluminum alloy. In addition, as for the material of each of the blades 10, in the present invention, the material of each of the blades 10 must be a lightweight material, so that each of the blades 10 can avoid being disturbed by inertia during the rotation process due to its own weight being too large.

[0055] On the other hand, Figure 6 He Ru Figure 7 The present invention also provides a groupable ocean current power generation device, which includes: a floating platform 200, a generator set 400 arranged on the floating platform 200, and a plurality of the above-mentioned adaptive efficiency-enhancing impellers 100 connected to the floating platform 200 through a transmission assembly 300; wherein the adaptive efficiency-enhancing impeller 100 and the generator set 400 are respectively arranged on both sides of the floating platform 200.

[0056] Specifically, the generator set 400 is specifically arranged on the platform of the floating platform 200, and is above the sea level when in use; each of the adaptive enhancement impellers 100 is arranged at the bottom of the floating platform 200, and is sunk below the sea level when in use, and each of the adaptive enhancement impellers 100 is arranged at the bottom of the floating platform 200 in a front-to-back cross arrangement. The front-to-back cross arrangement can effectively utilize the kinetic energy of the captured ocean current, and by mounting a plurality of the adaptive enhancement impellers 100 for energy acquisition at the lower end of each of the floating platforms 200 of the groupable ocean current power generation device, and adopting a front-to-back cross arrangement of each of the adaptive enhancement impellers 100, the density and coverage of the adaptive enhancement impellers 100 can be increased, thereby maximally capturing the kinetic energy of the ocean current. In addition, for the groupable ocean current power generation device, in actual application, a plurality of floating platform groups of groupable ocean current power generation devices can be assembled together, so that a plurality of groupable ocean current power generation devices can be deployed in a modular form. Therefore, the size of the groupable ocean current power generation device of the deployment module can be determined according to the actual ocean current conditions to adapt to ocean current power generation in different environments, thereby achieving a deployment effect with improved flexibility.

[0057] Moreover, the present invention is adaptive to the direction of the ocean current and can work normally regardless of the direction of the ocean current. Therefore, the groupable ocean current power generation device is not limited to receiving only tidal energy. At the same time, it also gets rid of the dependence on terrain and can be used wherever there is an ocean current or even in an ordinary river, which greatly improves the applicable scenarios of the present invention.

[0058] Furthermore, in actual application, the generator set 400 is arranged on the floating platform 200, so that the floating platform 200 provides a relatively stable power generation work platform for the generator set 400, which helps to reduce the interference of the generator set 400 by waves, wind and other environmental factors, thereby improving the stability of the groupable ocean current power generation device. Furthermore, by arranging the generator set 400 on the floating platform 200, the generator set 400 can reduce the risk of corrosion and damage by the ocean, so as to improve the safety of the generator set 400. At the same time, the difficulty of operation and maintenance of the generator set 400 during the commissioning stage is also greatly reduced.

[0059] Furthermore, in a possible implementation, the floating platform 200 further includes: a truss structure 210 and a plurality of floating blocks 220 , wherein the truss structure 210 and the floating blocks 220 are disposed at the bottom of the floating platform 200 , and each of the floating blocks 220 is embedded in the truss structure 210 .

[0060] Specifically, the truss structure 210 is arranged at the bottom of the floating platform 200, that is, it is separated from the generator set 400 arranged on the platform surface of the floating platform 200. The truss structure 210 can increase the stability and rigidity of the floating platform 200, provide stronger support and bearing capacity, so that the entire groupable ocean current power generation device can achieve a more stable and reliable effect.

[0061] Furthermore, a plurality of the floating blocks 220 are dispersedly arranged at the bottom of the floating platform 200, and

[0062] Each of the floating blocks 220 is embedded in the truss structure 210, so that the load of the floating platform 200 can be more evenly distributed, thereby reducing local stress concentration and reducing the risk of structural fatigue and damage. In addition, each of the floating blocks 220 is a hollow floating block 220, so as to generate sufficient buoyancy to offset the gravity of the overall groupable ocean current power generation device and to ensure that the height of the entire power generation device exposed above the horizontal plane is just right.

[0063] Further, in a possible implementation, the generator set 400 and the gear chain 230 are arranged on the platform of the floating platform 200. In the present invention, the power of the rotation of the plurality of adaptive efficiency-enhancing impellers 100 can be effectively transmitted to the generator set 400 through the transmission of the gear chain 230 to generate electricity, thereby achieving the effect of improving the transmission efficiency.

[0064] Furthermore, in a possible implementation, the transmission assembly 300 includes: a plurality of transmission shafts 310 , one end of each of the transmission shafts 310 is connected to the gear chain 230 , and the other end of each of the transmission shafts 310 is connected to the vertical shaft 30 .

[0065] Specifically, with regard to the connection method between the transmission assembly 300 and the adaptive enhancement impeller 100, each adaptive enhancement impeller 100 is connected to the floating platform 200 through each transmission shaft 310, so that each adaptive enhancement impeller 100 has an independent transmission shaft 310 connected to the floating platform 200, so that each adaptive enhancement impeller 100 will not be affected by other adaptive enhancement impellers 100, so as to achieve the effect of improving flexibility and stability.

[0066] Therefore, in the present invention, under the action of water flow, the blades 10 in the adaptive enhancement impeller 100 can be powered to rotate with the rotational torque obtained by the adaptive enhancement impeller 100. Moreover, the rotational torque obtained by the adaptive enhancement impeller 100 will be transmitted to the floating platform 200 through the transmission assembly 300, and the transmission mechanism such as the gear chain 230 will drive the generator set 400 on the floating platform 200 to generate electricity, and finally realize the whole process of converting the kinetic energy of water into electrical energy for power generation.

[0067] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0068] It should be noted that the present invention takes an adaptive efficiency-enhancing impeller as an example to introduce the specific structure and working principle of the present invention, but the application of the present invention is not limited to an adaptive efficiency-enhancing impeller, and can also be applied to the production and use of other similar workpieces.

[0069] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An adaptive efficiency-enhancing impeller for ocean current power generation, characterized in that: include: A plurality of rotatable blades, each of the blades being spaced apart and vertically arranged; A pair of blade supports, each of which is arranged at both ends of each blade; A vertical shaft, wherein the vertical shaft runs through the center of each of the blade supports, and each of the blades surrounds the vertical shaft and is arranged between each of the blade supports; Wherein, a plurality of energy-gaining limiters and a plurality of efficiency-enhancing limiters are arranged on each of the blade supports, and each of the energy-gaining limiters and each of the efficiency-enhancing limiters are arranged corresponding to each of the blades; The energy gain limiter and the efficiency enhancement limiter are used to limit the blades, so that when the adaptive efficiency enhancement impeller rotates under the impact of the ocean current, the blades provide a positive torque for the rotation of the adaptive efficiency enhancement impeller; The energy-gaining stopper and the efficiency-enhancing stopper are respectively arranged on both sides of the blade; the blade support is a disc; the circumferential radius formed by the arrangement of the energy-gaining stoppers is smaller than the circumferential radius formed by the arrangement of the efficiency-enhancing stoppers; the angle formed by the line connecting the center of the adaptive efficiency-enhancing impeller, the rotation axis of the blade and the efficiency-enhancing stopper is greater than 90°; when the blade leans against the energy-gaining stopper, the energy-gaining stopper, the center of the adaptive efficiency-enhancing impeller and the rotation axis of the blade are on the same straight line; The rotation area of ​​the blade is divided into energy acquisition area 1, energy acquisition area 2, efficiency enhancement area and free state area corresponding to the disk; when the blade is located at the corresponding position of energy acquisition area 1, under the action of the ocean current, the blade will rotate to a position close to the energy acquisition stopper under the push of the ocean current; when the adaptive efficiency enhancement impeller rotates in energy acquisition area 1 and energy acquisition area 2, the blade will always be able to lean against the energy acquisition stopper under the action of the water flow impact; when the blade comes to the efficiency enhancement area from the energy acquisition area 2, the blade will be affected by the thrust of the ocean current, and the blade will start to rotate around the axis of the blade to leave the energy acquisition stopper, and rotate until the blade contacts the efficiency enhancement stopper; The blades in the enhancement zone provide a favorable positive torque for the rotation of the adaptive enhancement impeller as a whole, and the resultant force point of the blades obtaining energy in the enhancement zone is farther away from the vertical shaft, and the lever arm is longer; when the blades rotate from the enhancement zone to the free state zone, the blades in the free state zone can continuously adjust their positions during rotation, so that the blades are always adaptively parallel to the direction of the ocean current.

2. The adaptive efficiency-enhancing impeller according to claim 1, characterized in that: On each of the disks, each of the synergistic limiters and each of the energy-gaining limiters are arranged circumferentially on the disk along the vertical shaft.

3. The adaptive efficiency-enhancing impeller according to claim 1, characterized in that: The blades are ribbed blades.

4. The adaptive efficiency-enhancing impeller according to claim 1, characterized in that: The blades are made of lightweight, hard, and corrosion-resistant material.

5. A groupable ocean current power generation device, characterized in that: include: A floating platform, a generator set arranged on the floating platform, and a plurality of adaptive efficiency-enhancing impellers according to any one of claims 1 to 4 connected to the floating platform via a transmission assembly; Wherein, the adaptive efficiency-enhancing impeller and the generator set are respectively arranged on both sides of the floating platform.

6. The groupable ocean current power generation device according to claim 5, characterized in that: The floating platform further comprises: a truss structure and a plurality of floating blocks. The truss structure and the floating blocks are arranged at the platform bottom of the floating platform, and the floating blocks are embedded in each of the truss structures.

7. The groupable ocean current power generation device according to claim 5, characterized in that: The generator set is arranged on the platform of the floating platform through a gear chain.

8. The groupable ocean current power generation device according to claim 7, characterized in that: The transmission assembly includes: a plurality of transmission shafts, one end of each transmission shaft is connected to the gear chain, and the other end of each transmission shaft is connected to the vertical shaft.

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