Hybrid wave energy power generation device

Abstract

The utility model discloses a mixed wave energy power generation device which comprises a floating body, the floating body comprises a first cavity, a second cavity, a third cavity and a fourth cavity, and the third cavity and the second cavity as well as the fourth cavity form a V-shaped groove used for placing an oscillating water column power generation mechanism; an air chamber is arranged on at least one opposite surface of the first cavity, the air chamber is communicated with the V-shaped groove through a communicating pipe, and a Wills turbine is arranged in the air chamber; fixed magnetic cores are arranged in the second cavity, the third cavity and the fourth cavity; the oscillating water column power generation mechanism comprises a movable magnetic core and an oscillating floater, and the oscillating floater can move up and down so as to cut magnetic induction lines between the movable magnetic core and the fixed magnetic core for power generation. By installing the M-shaped floating body, the main body of the device can adopt the M-shaped floating body configuration design, so that the stability and the wave resistance of the device are improved, the impact force of waves on the device is reduced, and the electro-mechanical conversion efficiency is high; the oscillating water column power generation mechanism utilizes medium-long wave energy, and the air compression ratio in the cavity is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to power generation device, concretely is a kind of hybrid wave energy power generation device. BACKGROUND

[0002] With the rapid development of world economy, energy demand is increasing, traditional energy has been unable to meet the development needs, in addition, the environmental problems caused by fossil energy are increasingly prominent, therefore, vigorously developing renewable energy is the trend of the times, compared with the resources on land, the potential of renewable energy stored in the ocean is huge, more than 70% of the earth's surface is covered by ocean, ocean energy as a kind of renewable energy stored in the ocean, mainly including wave energy, tidal energy, ocean current energy and offshore wind energy and other natural resources, compared with other renewable energy, ocean energy has important advantages such as rich availability, high load factor, low environmental impact and resource predictability, among them, wave energy refers to the kinetic energy and potential energy possessed by ocean surface waves, which has the following advantages: one, wave energy is a kind of mechanical energy, and it is also a relatively good energy in ocean energy, and its energy conversion device is relatively simple;Two, although the energy flow density of wave energy is relatively low, but its reserves are huge;Three, and it has the largest wave energy in winter, which can effectively alleviate the problems of huge traditional energy consumption and insufficient supply;Four, wave energy is the most widely distributed renewable energy in the ocean. It is also due to its outstanding advantages that ensure high development and utilization, so a hybrid wave energy power generation device is needed.

[0003] Generally, the fixed wave power generation device using wave energy is generally large in size, high in manufacturing cost and high in requirement for terrain environment, generally installed on the coast or the bottom of seabed, and difficult to maintain in later period, with the development of today's energy towards distributed direction, floating wave power generation device gradually becomes the darling of wave power generation technology research, typical floating wave power generation device includes oscillating buoy type, raft type, duck type (eagle type), and most floating wave power generation devices adopt oscillating buoy type, utilize wave to make the float up and down, and then drive rotary motor to generate electricity through linear motor or mechanical structure, but oscillating buoy type wave power generation device has inherent shortcomings such as short distance of runner float travel and low frequency, and the device has large energy loss in working process and low electromechanical conversion efficiency. UTILITY MODEL CONTENTS

[0004] Invention purpose: in order to overcome the deficiencies in the prior art, the utility model aims at providing a hybrid wave energy power generation device with good stability, strong wave resistance and high electromechanical conversion efficiency.

[0005] Technical solution: a kind of hybrid wave energy power generation device, including float, float includes first cavity, second cavity, third cavity, fourth cavity, third cavity is formed respectively with second cavity, fourth cavity V-shaped groove for placing oscillating water column power generation mechanism;At least one opposite face of first cavity is provided with air chamber, air chamber is connected with V-shaped groove by communicating pipe, and Wells turbine is arranged in air chamber;Second cavity, third cavity, fourth cavity are all provided with fixed magnetic core;Oscillating water column power generation mechanism includes moving magnetic core, oscillating float, and oscillating float can move up and down to cut the magnetic induction line between moving magnetic core and fixed magnetic core to generate electricity.

[0006] Further, oscillating water column power generation mechanism further includes connecting rod, fixed column, moving magnetic core, oscillating float are connected by connecting rod, and oscillating float is arranged on connecting rod, and connecting rod is inserted with fixed column, and connecting rod slides along fixed column under the driving of oscillating float.

[0007] Further, fixed column is provided with limiting block.

[0008] Further, one end of fixed column is connected with the top surface of first cavity.

[0009] Further, oscillating float is cylindrical.

[0010] Further, oscillating float is not contacted with V-shaped groove when moving up and down.

[0011] Further, fixed magnetic core and moving magnetic core are alternately layered distribution.

[0012] Further, float is M type.

[0013] Further, the cross-sectional area of second cavity and fourth cavity is equal, and all rectangular.

[0014] Further, the cross-sectional area of third cavity gradually decreases along the direction away from first cavity.

[0015] Further, air chamber is connected with the outside, and oscillating water column power generation mechanism is connected with the outside.

[0016] Working principle: the oscillating water column compresses air under the action of waves, converting wave energy into kinetic energy of air flow, the rotor blades of the Wells turbine are designed with symmetrical airfoil and fixed installation angle, which makes the blades produce lift in the same direction to drive the rotor to rotate continuously in one direction, converting kinetic energy of air flow into mechanical energy to drive the generator to generate electricity.

[0017] Beneficial effects: compared with the prior art, the utility model has the following characteristics:

[0018] 1. By installing M-shaped floating body, the main body of the device can be designed with M-shaped floating body configuration, thereby improving the stability and wave resistance of the device, reducing the impact force of waves on the device, and improving the electromechanical conversion efficiency.

[0019] 2. The oscillating water column power generation mechanism utilizes medium and long wave energy to effectively improve the air compression rate in the chamber, and fully utilizes the overlapping nature of short waves and reflected waves to capture short waves and reflected waves as energy capture. DETAILED DESCRIPTION

[0020] Figure 1 is a perspective view of the utility model;

[0021] Figure 2 is an enlarged schematic view of A of the utility model;

[0022] Figure 3 is a sectional view of the utility model. DETAILED DESCRIPTION

[0023] As Figure 1The M-shaped floating body 1 of the hybrid wave energy power generation device comprises a first cavity 11, a second cavity 12, a third cavity 13, and a fourth cavity 14, the third cavity 13 and the second cavity 12 and the third cavity 13 and the fourth cavity 14 respectively form a V-shaped groove 15, and the V-shaped groove 15 is provided with an oscillating water column power generation mechanism 2. The first cavity 11 is internally provided with an air chamber 3 extending to the left and right sides of the first cavity 11 and connected with the outside. One end of the oscillating water column power generation mechanism 2 is fixedly connected with the inner wall of the top surface of the first cavity 11, and the other end is connected with the outside. By installing the M-shaped floating body 1, the main body of the device can adopt the M-shaped floating body 1 configuration design, thereby improving the stability and wave resistance of the device and reducing the impact force of the wave on the device. The second cavity 12 and the fourth cavity 14 are prisms that are outwardly flared, the cross-sectional area is constant, and the cross-sectional area of the third cavity 13 gradually decreases along the direction away from the floating body 1. The floating body 1 is made of high-density polyethylene (HDPE), which is corrosion-resistant, low-density, has large buoyancy, impact resistance, and low cost.

[0024] As Figures 2-3 The air chamber 3 is connected with the V-shaped groove 15 through a communication pipe 4, and the air chamber 3 is provided with a Wells turbine 5. The second cavity 12, the third cavity 13, and the fourth cavity 14 are all provided with a fixed magnetic core 6. The oscillating water column power generation mechanism 2 comprises a moving magnetic core 21, an oscillating float 22, a connecting rod 23, and a fixed column 24. The oscillating float 22 can move up and down to cut the magnetic induction lines between the moving magnetic core 21 and the fixed magnetic core 6 to generate electricity. The moving magnetic core 21 and the oscillating float 22 are connected through the connecting rod 23, the connecting rod 23 is provided with the oscillating float 22, the connecting rod 23 is inserted with the fixed column 24, and the connecting rod 23 slides along the fixed column 24 under the driving of the oscillating float 22. The fixed column 24 is provided with a limiting block 25, and one end of the fixed column 24 is connected with the inner wall of the top surface of the first cavity 11. The oscillating float 22 is cylindrical. The oscillating float 22 does not contact the V-shaped groove 15 when moving up and down. The three fixed magnetic cores 6 and the two moving magnetic cores 21 are alternately distributed in layers. The fixed magnetic core 6 and the moving magnetic core 21 form a cylindrical permanent magnet.

[0025] When the hybrid wave energy power generation device of the present embodiment is placed in water and fixed to the shore with an anchor chain. When the wave passes through the M-shaped floating body 1, the Wells turbine 5 and the oscillating water column power generation mechanism 2 can both generate electricity and store electrical energy. The oscillating float 22 floats up and down under the action of the wave, driving the outer coil (moving magnetic core 21) of the electromagnetic device below to move up and down, allowing the moving magnetic core 21 to continuously cut the magnetic induction lines, thereby achieving the effect of generating electricity. Under the same wave excitation, the cylindrical oscillating float 22 has a lighter mass, facilitating its up and down movement and capturing more wave energy.

Claims

1. A hybrid wave energy device, characterised in that: The utility model relates to a kind of oscillating water column power generation device, including float (1), the float (1) includes first cavity (11), second cavity (12), third cavity (13), fourth cavity (14), the third cavity (13) respectively with second cavity (12), fourth cavity (14) form V-shaped groove (15) for placing the oscillating water column power generation device (2);At least one opposite surface of the first cavity (11) is provided with air chamber (3), the air chamber (3) is communicated with V-shaped groove (15) by communicating pipe (4), Wells turbine (5) is provided in the air chamber (3);Second cavity (12), third cavity (13), fourth cavity (14) are all provided with fixed magnetic core (6);The oscillating water column power generation device (2) includes moving magnetic core (21), oscillating float (22), the oscillating float (22) can move up and down to cut the magnetic induction line between moving magnetic core (21), fixed magnetic core (6) and generate electricity.

2. A hybrid wave energy device according to claim 1, characterised in that: The oscillating water column power generation device (2) further includes connecting rod (23), fixed column (24), the moving magnetic core (21), oscillating float (22) are connected by connecting rod (23), oscillating float (22) is provided on the connecting rod (23), the connecting rod (23) is inserted with fixed column (24), the connecting rod (23) is driven along fixed column (24) by oscillating float (22) and slides.

3. A hybrid wave energy converter according to claim 2, wherein: Limiting block (25) is provided on the fixed column (24).

4. A hybrid wave energy converter according to claim 2, characterised in that: One end of the fixed column (24) is connected with the top surface of the first cavity (11).

5. A hybrid wave energy converter according to claim 1, characterised in that: The oscillating float (22) is cylindrical.

6. A hybrid wave energy converter according to claim 1, characterised in that: The oscillating float (22) does not contact with V-shaped groove (15) when moving up and down.

7. A hybrid wave energy converter according to claim 1, characterised in that: The fixed magnetic core (6) and the moving magnetic core (21) are alternately distributed in layers.

8. A hybrid wave energy converter according to claim 1, characterised in that: The float (1) is M-shaped.

9. A hybrid wave energy converter according to claim 1, characterised in that: The cross-sectional area of the second cavity (12) and the fourth cavity (14) is equal, and both are rectangular.

10. A hybrid wave energy converter according to claim 1, characterised in that: The cross-sectional area of the third cavity (13) gradually decreases along the direction away from the first cavity (11).

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