Ocean power station based on composite sail wing ocean current turbine and application

Abstract

Ocean power station based on composite sail wing ocean current turbine and application, including composite sail wing ocean current turbine and power station; the composite sail wing ocean current turbine is connected to the power station; the composite sail wing ocean current turbine includes turbine upper disc, composite blade, turbine lower disc and turbine center shaft; the turbine upper disc and the turbine lower disc are arranged in parallel, and the geometric centers of the turbine upper disc and the turbine lower disc are connected through the turbine center shaft; a plurality of composite blades are arranged between the edges of the turbine upper disc and the turbine lower disc, forming a cylindrical structure; the composite blade of the composite sail wing ocean current turbine is composed of a rigid curved blade and a flexible sail wing blade. The flexible sail wing blade is installed on the convex surface of the curved composite blade, and is opened in the downstream direction and closed in the upstream direction. Under the joint action of the flexible sail wing and the curved rigid composite blade, a positive torque is generated to push the rotation, solving the low flow speed starting problem.

Description

Technical Field

[0001] This invention belongs to the field of ocean current turbine technology, and specifically relates to marine power stations and their applications based on composite sail-wing ocean current turbines. Background Technology

[0002] With the increasing demand for ocean exploration, deep-sea observation networks composed of deep-sea sonar unmanned underwater vehicles have emerged. Currently, these networks are primarily powered by land-based and ship-based power sources. However, land-based power supply faces high installation and maintenance costs, while ship-based power supply also incurs significant maintenance expenses. In underwater defense systems, deep-sea monitoring networks primarily powered by land-based power also face the risk of system paralysis if the main power grid is damaged.

[0003] Underwater power stations that utilize deep-sea current energy can effectively solve this problem, so these types of charging stations have a broad application prospect.

[0004] However, the current velocity in the deep sea is relatively low, ranging from 0.1 m / s to 0.5 m / s. Therefore, the ocean current turbines used in these power stations need to address the low-speed start-up problem. According to industry reports, lift-type horizontal-axis ocean current turbines do not have a good solution to this problem. Summary of the Invention

[0005] The purpose of this invention is to provide a marine power station and its application based on a composite sail-wing ocean current turbine, in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A marine power station based on a composite sail-wing ocean current turbine includes a composite sail-wing ocean current turbine and a power station; the composite sail-wing ocean current turbine is connected to the power station.

[0008] The composite sail-wing ocean current turbine includes an upper turbine disk, composite blades, a lower turbine disk, and a turbine central shaft; the upper and lower turbine disks are arranged parallel to each other, and their geometric centers are connected by the turbine central shaft; several composite blades are arranged with equal curvature between the edges of the upper and lower turbine disks to form a cylindrical structure.

[0009] The composite blade has a double-layer structure.

[0010] Furthermore, the composite blade includes a flexible film and a rigid curved blade; the flexible film is disposed on the convex curved surface of the rigid curved blade.

[0011] Furthermore, the flexible film is a rectangular film, and its three sides are connected to the rigid curved blade through a sealing strip. The open side of the flexible film forms a pocket structure on the rigid curved blade.

[0012] Further, the rigid curved blade comprises an arc-shaped elongated plate and an edge column, and the edge column is axially arranged along the edge of the arc-shaped elongated plate.

[0013] Further, the edge column of the composite blade is located inside the cylindrical structure.

[0014] Further, the installation relationship between the composite blade and the upper turbine disc and the lower turbine disc satisfies 1.1<D1 / D2<2, 30°<α<120°, 4<number of blades<20; wherein D1 is the installation outer diameter of the composite blade, D2 is the installation inner diameter of the composite blade, and α is the included angle between the curve chord of the composite blade and the concentric circle of the centers of the upper turbine disc and the lower turbine disc.

[0015] Further, the power supply station comprises a charging station cavity, a speed increasing gear set, a rotating shaft, a generator and an energy storage system; one end of the speed increasing gear set is arranged on the rotating shaft, the other end is connected to the generator, and the generator is connected to the energy storage system; the speed increasing gear set, the rotating shaft, the generator and the energy storage system are all arranged in the charging station cavity.

[0016] Further, the rotating shaft is connected with the central shaft of the turbine; the generator is connected to the energy storage system through an electric wire.

[0017] Further, the energy storage system is connected with a wireless charging horn interface, and the wireless charging horn interface is arranged on the charging station cavity; a seabed support is arranged at the bottom of the charging station cavity.

[0018] Further, the application of the marine power supply station based on the composite sail-wing ocean current turbine is used for marine ocean current power generation and charging of underwater vehicles.

[0019] Compared with the prior art, the present invention has the following technical effects:

[0020] In the present invention, the composite blade of the composite sail-wing ocean current turbine is composed of a rigid curved blade and a flexible sail-wing blade. The flexible sail-wing blade is mounted on the convex surface of the curved composite blade, opens in the downstream direction and closes in the upstream direction. Under the combined action of the flexible sail-wing and the curved rigid composite blade, a forward moment is generated to推动 rotation, which solves the problem of low flow velocity starting.

[0021] For the composite blade with pocket structure of the present invention, the flexible film of the composite blade facing the water flow opens to increase power, and the flexible film of the composite blade on the resistance surface against the water flow closes to increase power, thereby increasing the energy conversion efficiency of the ocean current turbine.

[0022] The power generation device of the present invention is connected with the energy storage device, and further connected with the wireless charging device, so as to realize seabed power generation and charging. Description of Drawings

[0023] Figure 1 A front view of a marine power supply station based on a composite sail-wing ocean current turbine;

[0024] Figure 2 An isometric view of a marine power station based on a composite sail-wing ocean current turbine;

[0025] Figure 3 Axonometric drawing of the cavity of a marine power station based on a composite sail-wing ocean current turbine;

[0026] Figure 4 Axonometric view of the composite blade (open state);

[0027] Figure 5 Top view of the composite blade (opening state);

[0028] Figure 6 Axonometric view of the composite blade (closed state);

[0029] Figure 7 Top view of the composite blade (closed state);

[0030] Figure 8 A cross-section of an ocean power station based on a composite sail-wing ocean current turbine;

[0031] Figure 9 A cross-section (oscillating schematic diagram) of an ocean power station based on a composite sail-wing ocean current turbine.

[0032] The components include: 1. upper turbine disc, 2. composite blades, 3. lower turbine disc, 4. turbine central shaft, 5. outer wall of charging station cavity, 6. speed-increasing gear set, 7. generator, 8. wires, 9. energy storage system, 10. seabed support, and 11. wireless charging horn. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings:

[0034] Please see Figures 1 to 9 A marine power station based on a composite sail-wing ocean current turbine includes a composite sail-wing ocean current turbine and a power station; the composite sail-wing ocean current turbine is connected to the power station;

[0035] The composite sail-wing current turbine includes an upper turbine disk 1, composite blades 2, a lower turbine disk 3, and a turbine central shaft 4; the upper turbine disk 1 and the lower turbine disk 3 are arranged parallel to each other vertically, and their geometric centers are connected by the turbine central shaft 4; several composite blades 2 are arranged with equal arcs between the edges of the upper turbine disk 1 and the lower turbine disk 3, forming a cylindrical structure;

[0036] The composite blade 2 has a double-layer structure.

[0037] The composite blade 2 includes a flexible film 21 and a rigid curved blade 23; the flexible film 21 is disposed on the convex curved surface of the rigid curved blade 23.

[0038] Figure 1 and Figure 2 These are, respectively, a front view and an isometric view of a marine power station based on a composite sail-wing ocean current turbine.

[0039] like Figure 1 , Figure 2 The marine charging station shown consists of an upper turbine disc 1, composite blades 2, a lower turbine disc 3, a turbine central shaft 4, the outer wall of the charging station cavity 5, a speed-increasing gear set 6, a generator 7, wires 8, an energy storage system 9, a seabed support 10, and a wireless charging horn 11.

[0040] The composite blades 2 are fixedly installed between the upper turbine disk 1 and the lower turbine disk 3, and are evenly distributed between the upper and lower disks. The centers of the upper turbine disk 1 and the lower turbine disk 3 are connected to the turbine central shaft 4 via flanges or other means. The turbine assembly, consisting of the upper disk 1, composite blades 2, lower turbine disk 3, and turbine central shaft 4, is mounted on the outer wall 5 of the charging station cavity via the turbine central shaft 4. Simultaneously, the turbine central shaft 4 transmits torque to the charging station cavity 5. The subsea support 10 is fixed to the lower part of the outer wall 5 of the charging station cavity. The subsea mounting support is installed on the seabed or riverbed, thereby securing the entire subsea power station.

[0041] Figure 3 The figure shows an isometric view of a marine power station cavity based on a composite sail-wing current turbine. The outer wall 5 of the charging station cavity is composed of a cylindrical shell with openings on the top and sides. The opening on the top connects to the turbine's central shaft 4, and the opening on the side connects to a wireless charging horn 11. The turbine's central shaft 4 is connected to the low-speed large gear of the speed-increasing gear set 6, and one end of the generator 7 is connected to one end of the high-speed small gear of the speed-increasing gear set 6. Electrical wires 8 connect the generator 7 to the energy storage system 9, and the energy storage system 9 to the wireless charging horn 11, thereby transferring energy from the generator 7 to the wireless charging horn 11, and ultimately enabling underwater charging of the unmanned underwater vehicle.

[0042] Figure 4 and Figure 5 The figures shown are an isometric and top view of the composite blade 2, which consists of a flexible membrane 21, a sealing strip 22, and a rigid curved blade 23. A cylindrical protrusion exists on one side of the rigid curved blade 23. A three-sided sealing strip 22 is located on the convex surface of the rigid curved blade 23. Through the three-sided sealing strip 22, three sides of the flexible membrane 21 are fixed to the convex surface of the rigid curved blade 23. The unfixed end is the flexible membrane 21, and its opening degree is related to the blade's position relative to the water flow.

[0043] Figure 4 and Figure 5 The images are, respectively, an axonometric view and a top view of the composite blade 2 when the flexible film 21 is opened. Figure 6 and Figure 7 are an axonometric drawing and a top view of the composite blade 2 when the flexible membrane 21 is closed, respectively.

[0044] Figure 8 and Figure 9 is the A-A cross-section of Figure 1 , as shown in Figure 8 , the composite blade 2 is fitted and fixed with the upper turbine disk 1 and the lower turbine disk 3 through its own cylindrical protruding structure. The composite blades 2 are evenly installed between the upper turbine disk 1 and the lower turbine disk 3. D1 is the installation outer diameter of the composite blades 2, D2 is the installation inner diameter of the composite blades 2, and α is the included angle between the curve chord of the turbine composite blade 4 and the concentric circle centered at the center of the upper turbine disk 1 and the lower turbine disk 3. The installation relationship between the composite blades 2 and the upper turbine disk 1 and the lower turbine disk 3 satisfies 1.1<D1 / D2<2, 30°<α<120°, and 4<the number of composite blades 2<20. As shown in Figure 9 , assuming the incoming flow direction is from left to right, the rotation direction of the turbine is counterclockwise. At this time, the flexible membrane 21 of the composite blade 2 on the power surface (lower half circumference) opens, forming the state of Figure 4 and Figure 5 , which increases power. The flexible membrane 21 of the composite blade 2 on the resistance surface closes, forming the state of Figure 6 and Figure 7 , which reduces resistance, thereby increasing the energy conversion efficiency of the ocean current turbine.

Claims

1. A marine power station based on a composite sail-wing ocean current turbine, characterized in that, comprising a composite sail ocean current turbine and a power supply station; the composite sail ocean current turbine is connected to the power supply station; the composite sail ocean current turbine comprises an upper turbine disc (1), composite blades (2), a lower turbine disc (3) and a turbine central shaft (4); the upper turbine disc (1) and the lower turbine disc (3) are arranged in parallel up and down, and the geometric centers of the upper turbine disc (1) and the lower turbine disc (3) are connected through the turbine central shaft (4); a plurality of composite blades (2) are arranged at equal radians between the edges of the upper turbine disc (1) and the lower turbine disc (3) to form a cylindrical structure; the composite blade (2) is of a double-layer structure; the composite blade (2) comprises a flexible membrane (21) and a rigid curved blade (23); the flexible membrane (21) is arranged on the convex curved surface of the rigid curved blade (23); the flexible membrane (21) is a rectangular membrane, three edges of the flexible membrane (21) are connected with the rigid curved blade (23) through sealing strips (22), and the opening side of the flexible membrane (21) forms a pocket structure on the rigid curved blade (23); the rigid curved blade (23) comprises an arc-shaped elongated plate and edge columns, and the edge columns are axially arranged along the edge of the arc-shaped elongated plate; the edge columns of the composite blade (2) are located on the inner side of the cylindrical structure; the installation relationship between the composite blade (2) and the upper turbine disc (1) and the lower turbine disc (3) satisfies 1.1 < D1 / D2 < 2, 30° < α < 120°, 4 < the number of blades < 20; D1 is the installation outer diameter of the composite blade (2), D2 is the installation inner diameter of the composite blade (2), and α is the included angle between the chord line of the composite blade (2) curve and the concentric circle centered at the centers of the upper turbine disc (1) and the lower turbine disc (3).

2. The marine power station based on a composite sail-wing ocean current turbine according to claim 1, characterized in that, the power supply station comprises a power station cavity (5), a speed increasing gear set (6), a rotating shaft, a generator (7) and an energy storage system (9); one end of the speed increasing gear set (6) is arranged on the rotating shaft, the other end is connected to the generator (7), and the generator (7) is connected to the energy storage system (9); the speed increasing gear set (6), the rotating shaft, the generator (7) and the energy storage system (9) are all arranged in the power station cavity (5).

3. The marine power station based on a composite sail-wing ocean current turbine according to claim 2, characterized in that, the rotating shaft is connected to the turbine central shaft (4); the generator (7) is connected to the energy storage system (9) through an electric wire (8).

4. The marine power station based on a composite sail-wing ocean current turbine according to claim 3, characterized in that, the energy storage system (9) is connected to a wireless charging horn interface (11), and the wireless charging horn interface (11) is arranged on the power station cavity (5); a seabed support (10) is arranged at the bottom of the power station cavity (5).

5. The application of marine power stations based on composite sail-wing current turbines, characterized in that, the ocean power supply station based on the composite sail ocean current turbine according to any one of claims 1 to 4 is used for ocean current power generation and charging of underwater vehicles.

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