Wave power generation device and wave power generation system

Abstract

The invention provides a wave power generation device and a wave power generation system. The wave power generation device comprises an air chamber, a power generation device and a power generation device, the air outlet pipe is communicated with the upper part of the air chamber; the first one-way valve is arranged at the communication part of the air outlet pipe and the air chamber; the upper part of the potential energy chamber is communicated with the upper part of the air chamber; energy storage liquid is arranged in the liquid storage chamber, and the liquid storage chamber communicates with the potential energy chamber; one end of the exhaust pipe is communicated with the air outlet pipe, and the other end of the exhaust pipe is communicated with the upper part of the liquid storage chamber; the second one-way valve is arranged at the communication part of the exhaust pipe and the liquid storage chamber; the air inlet pipe is communicated with the upper part of the liquid storage chamber; the third one-way valve is arranged at the communication position of the air inlet pipe and the liquid storage chamber. The invention provides a wave power generation device. Two kinds of kinetic energy of air outlet and air inlet formed by wave peaks and valleys in cooperation with an air chamber are converted into unified air outlet kinetic energy.

Description

Technical Field

[0001] The present invention relates to the technical field of wave power generation, and in particular, to a wave power generation device and a wave power generation system. Background Art

[0002] Traditional oscillating water column generators rise and fall with the waves, generating air kinetic energy in two directions, in and out, and require the generator to generate electricity in both forward and reverse rotations. For each wave chamber, a generator that can generate electricity in both forward and reverse rotations needs to be configured, resulting in a high device cost.

[0003] The information disclosed in this background art section is only intended to deepen the understanding of the overall background art of the present invention, and should not be regarded as an admission, or imply in any form that this information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides a wave power generation device and a wave power generation system.

[0005] A wave power generation device provided by the technical solution of the present invention includes: an air chamber, with a water inlet provided below the air chamber; an outlet pipe, which is communicated with the upper part of the air chamber; a first one-way valve, which is arranged at the connection of the outlet pipe and the air chamber, so that gas flows unidirectionally from the air chamber into the outlet pipe; a potential energy chamber, whose upper part is communicated with the upper part of the air chamber; a liquid storage chamber, in which energy storage liquid is provided, and the liquid storage chamber is communicated with the potential energy chamber. When the wave power generation device is in a working state, the center of gravity of the potential energy chamber is higher than that of the liquid storage chamber; an exhaust pipe, one end of which is communicated with the outlet pipe, and the other end of which is communicated with the upper part of the liquid storage chamber; a second one-way valve, which is arranged at the connection of the exhaust pipe and the liquid storage chamber, so that gas flows unidirectionally from the liquid storage chamber into the exhaust pipe; an inlet pipe, which is communicated with the upper part of the liquid storage chamber; a third one-way valve, which is arranged at the connection of the inlet pipe and the liquid storage chamber, so that gas flows unidirectionally from the inlet pipe into the liquid storage chamber.

[0006] Optionally, the air chamber, the potential energy chamber and the liquid storage chamber are combined and arranged to form a columnar structure.

[0007] Optionally, the cross-section of the columnar structure is circular, rectangular or regular polygon.

[0008] Optionally, the manufacturing method of the columnar structure includes: obtaining a hollow original chamber; opening a water inlet on the middle side wall of the original chamber; partitioning the inside of the original chamber below the water inlet to form two upper and lower layers, with the upper layer serving as the potential energy chamber and the lower layer serving as the liquid storage chamber.

[0009] Optionally, the potential energy chamber has an upward convex part, and the upward convex part communicates the upper part of the potential energy chamber with the upper part of the air chamber.

[0010] Optionally, the distance between the top of the upward convex part and the top of the air chamber is less than 20% of the original chamber height.

[0011] Optionally, the potential energy chamber has a downward convex part, and the downward convex part forms a channel for the energy storage liquid in the liquid storage chamber to flow into the main chamber in the potential energy chamber.

[0012] Optionally, the distance between the bottom of the downward convex part and the bottom of the liquid storage chamber is less than 20% of the original chamber height.

[0013] The technical solution of the present invention also provides a wave power generation system, which includes a plurality of wave power generation devices as described in any one of the above and several power generation modules, and a single power generation module is communicated with the air outlet pipes of the plurality of wave power generation devices.

[0014] Optionally, a plurality of wave power generation device arrays are arranged closely adjacent to each other.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention.

[0016] Beneficial effects of the present invention: A wave power generation device is provided, so that both the kinetic energies of air outlet and air inlet formed by the cooperation of wave peaks and valleys and the air chamber are converted into a unified air outlet kinetic energy. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the principle of a wave power generation device provided by the technical solution of the present invention.

[0019] Figure 2 It is a schematic diagram of the specific structure of a wave power generation device provided by the technical solution of the present invention. Detailed Embodiments

[0020] The advantages of the present invention will be further elaborated below in conjunction with the drawings and specific embodiments.

[0021] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure.

[0022] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms "a", "the", and "said" used in this disclosure are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0023] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0024] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0025] In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a mechanical connection or an electrical connection, or it may be the communication inside two elements. It may be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms may be understood according to specific circumstances.

[0026] In the following description, the suffixes such as "module", "component", or "unit" used to represent elements are only for the convenience of describing the present invention and have no specific meaning in themselves. Therefore, "module" and "component" may be used interchangeably.

[0027] Figure 1 A schematic diagram of the principle of a wave power generation device provided for the technical solution of the present invention, as Figure 1As shown in the figure, the wave power generation device includes: an air chamber 3, with a water inlet 31 provided below the air chamber 3; an air outlet pipe 1, which is communicated with the upper part of the air chamber 3; a first one-way valve 2, which is arranged at the connection between the air outlet pipe 1 and the air chamber 3, so that gas flows unidirectionally from the air chamber 3 into the air outlet pipe 1; a potential energy chamber 4, the upper part of which is communicated with the upper part of the air chamber 3; a liquid storage chamber 5, in which energy storage liquid is arranged, and the liquid storage chamber 5 is communicated with the potential energy chamber 4. When the wave power generation device is in the working state, the center of gravity of the potential energy chamber 4 is higher than that of the liquid storage chamber 5; an exhaust pipe 6, one end of which is communicated with the air outlet pipe 1, and the other end of which is communicated with the upper part of the liquid storage chamber 5; a second one-way valve 7, which is arranged at the connection between the exhaust pipe 6 and the liquid storage chamber 5, so that gas flows unidirectionally from the liquid storage chamber 5 into the exhaust pipe 6; an air inlet pipe 9, which is communicated with the upper part of the liquid storage chamber 5; a third one-way valve 8, which is arranged at the connection between the air inlet pipe 9 and the liquid storage chamber 5, so that gas flows unidirectionally from the air inlet pipe 9 into the liquid storage chamber 5.

[0028] In one embodiment, the energy storage liquid is water.

[0029] It should be noted that when the wave rises, the first one-way valve 2 opens, and the air in the air chamber 3 is discharged from the air outlet pipe 1. At the same time, the energy storage liquid in the potential energy chamber 4 flows into the liquid storage chamber 5 under the action of gravity and air pressure. The energy storage liquid squeezes the air in the liquid storage chamber 5, and the air can close the third one-way valve 8, open the second one-way valve 7, and discharge the air in the liquid storage chamber 5 from the exhaust pipe 6; when the wave drops, the first one-way valve 2 closes, and the low air pressure generated by the dropping wave sucks the air in the upper part of the potential energy chamber 4 towards the air chamber 3, and synchronously sucks the energy storage liquid in the liquid storage chamber 5 towards the potential energy chamber 4. When air enters through the air inlet pipe 9 (the wave in the air chamber 3 descends), the energy is converted into the potential energy of the energy storage liquid, and then when air exits through the air outlet pipe 1 (the wave in the air chamber 3 ascends), this part of the potential energy is converted into the kinetic energy of the gas in the exhaust pipe 6, so as to convert the intake kinetic energy into the exhaust kinetic energy.

[0030] By conversion, the kinetic energy of the air entering when the wave drops is temporarily changed into the potential energy of the energy storage liquid, and finally it also becomes the kinetic energy of the discharged air. In this way, the air kinetic energy in two directions becomes the air kinetic energy in one direction, saving at least a generator at the air inlet pipe 9.

[0031] Figure 2 A specific structural schematic diagram of a wave power generation device provided by the technical solution of the present invention is as Figure 2 shown. Optionally, the air chamber 3, the potential energy chamber 4 and the liquid storage chamber 5 are combined and arranged to form a columnar structure.

[0032] Optionally, the cross-section of the columnar structure is circular, rectangular or regular polygon.

[0033] Optionally, the manufacturing method of the columnar structure includes: obtaining a hollow original chamber 10; opening a water inlet 31 on the middle side wall of the original chamber 10; partitioning the inside of the original chamber 10 below the water inlet 31 to form upper and lower layers, with the upper layer serving as the potential energy chamber 4 and the lower layer serving as the liquid storage chamber 5.

[0034] Optionally, the potential energy chamber 4 has an upward convex portion 41, and the upward convex portion 41 communicates with the upper part of the potential energy chamber 4 and the upper part of the air chamber 3.

[0035] Optionally, the distance between the top of the upward convex portion 41 and the top of the air chamber 3 is less than 20% of the height of the original chamber 10.

[0036] On the one hand, the upward convex portion 41 provides more storage space for the energy storage liquid and can accumulate more potential energy. On the other hand, it also prevents the energy storage liquid from being directly introduced into the air chamber, avoiding energy storage failure caused by the dropping of potential energy.

[0037] Optionally, the potential energy chamber 4 has a downward convex portion 42, and the downward convex portion 42 forms a channel for the energy storage liquid in the liquid storage chamber 5 to flow to the main chamber of the potential energy chamber 4.

[0038] Optionally, the distance between the bottom of the downward convex portion 42 and the bottom of the liquid storage chamber 5 is less than 20% of the height of the original chamber 10.

[0039] Through the downward convex portion 42, even if the air pressure caused by the waves is relatively small, the movement of the energy storage liquid can be achieved, avoiding the failure of the movement of the energy storage liquid caused by low air pressure.

[0040] In one embodiment, each wave power generation device installs a generator on the air outlet pipe 1 or the air outlet pipes 1 of multiple devices are connected in series to install a generator.

[0041] In another embodiment, the technical solution of the present invention also provides a wave power generation system. The wave power generation system includes multiple wave power generation devices as described in any one of the above and several power generation modules, and a single power generation module is communicated with the air outlet pipes 1 of multiple wave power generation devices.

[0042] Optionally, multiple wave power generation device arrays are arranged closely adjacent to each other.

[0043] In the embodiment of the present invention, the air outlet pipes 1 of n multiple air chambers 3 can be connected and formed into a whole, and a single generator is used for power generation. On the one hand, it saves generators and is easy to maintain. On the other hand, it greatly improves the energy conversion rate of the waves.

[0044] It should be noted that in the prior art, for example, in a sea area of one square kilometer, a traditional air chamber 3 is used. There will be one or more wave crests and wave troughs in one air chamber 3 at the same time. Further, in the embodiments of the present invention, through the embodiments of the columnar structure, a single wave power generation device with a smaller diameter can be realized, so that there will be no wave crests and wave troughs in the air chamber 3 at the same time. By forming an array with 100 or even 1000 air chambers 3, the waves in each air chamber 3 will not cancel out part of the energy due to wave crests and wave troughs.

[0045] This embodiment provides a wave power generation device, which converts the two kinetic energies of air outlet and air inlet formed by the cooperation of wave crests and troughs with the air chamber 3 into a unified air outlet kinetic energy.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wave power generation device, characterized in that: The wave power generation device comprises: An air chamber, wherein a water inlet is arranged below the air chamber; An air outlet pipe, the air outlet pipe is connected to the upper part of the air chamber; a first one-way valve, the first one-way valve being arranged at the connection between the gas outlet pipe and the gas chamber so that the gas flows from the gas chamber into the gas outlet pipe in one direction; A potential energy chamber, wherein the upper portion of the potential energy chamber is communicated with the upper portion of the air chamber; A liquid storage chamber, wherein energy storage liquid is arranged in the liquid storage chamber, the liquid storage chamber is communicated with the potential energy chamber, and when the wave power generation device is in a working state, the center of gravity of the potential energy chamber is higher than the center of gravity of the liquid storage chamber; An exhaust pipe, one end of which is connected to the air outlet pipe, and the other end of which is connected to the upper side of the liquid storage chamber; a second one-way valve, the second one-way valve being arranged at the connection between the exhaust pipe and the liquid storage chamber so that the gas flows from the liquid storage chamber into the exhaust pipe in one direction; An air intake pipe, the air intake pipe is connected to the upper part of the liquid storage chamber; A third one-way valve is arranged at the connection between the air intake pipe and the liquid storage chamber, so that the gas flows from the air intake pipe to the liquid storage chamber in a one-way manner.

2. The wave power generation device according to claim 1, characterized in that: The air chamber, the potential energy chamber and the liquid storage chamber are combined to form a column structure.

3. The wave power generation device according to claim 2, characterized in that: The cross section of the column structure is circular, rectangular or regular polygonal.

4. The wave power generation device according to claim 2, characterized in that: The manufacturing method of the column structure comprises: Obtaining the hollow original chamber; The water inlet is opened on the middle side wall of the original chamber; Below the water inlet, the interior of the original chamber is partitioned to form an upper and lower layer, the upper layer serving as the potential energy chamber and the lower layer serving as the liquid storage chamber.

5. The wave power generation device according to claim 4, characterized in that: The potential energy chamber has an upward protrusion, and the upward protrusion connects the upper part of the potential energy chamber with the upper part of the air chamber.

6. The wave power generation device according to claim 5, characterized in that: The distance between the top of the upward protrusion and the top of the air chamber is less than 20% of the original chamber height.

7. The wave power generation device according to claim 4, characterized in that: The potential energy chamber has a downward protrusion, and the downward protrusion forms a channel for the energy storage liquid in the liquid storage chamber to flow to the main cavity in the potential energy chamber.

8. The wave power generation device according to claim 7, characterized in that: The distance between the bottom of the downward protrusion and the bottom of the liquid storage chamber is less than 20% of the original chamber height.

9. A wave power generation system, characterized in that: The wave power generation system comprises a plurality of wave power generation devices as claimed in any one of claims 1 to 8 and a plurality of power generation modules, wherein a single power generation module is connected to the air outlet pipes of a plurality of the wave power generation devices.

10. The wave power generation system according to claim 9, characterized in that: A plurality of wave power generation device arrays are closely arranged.

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