CN220646094U

CN220646094U - Wave energy power generation device

Info

Publication number: CN220646094U
Application number: CN202322074152.3U
Authority: CN
Inventors: 潘中奇; 颜俊; 梁涛; 郭磊; 李倩; 颜安; 周晓
Original assignee: China Three Gorges Corp
Current assignee: China Three Gorges Corp
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2024-03-22
Anticipated expiration: 2033-08-01

Abstract

The utility model discloses a wave energy power generation device which comprises a power generation assembly, a cylinder body, a piston, a collecting piece and a backflow prevention piece, wherein the power generation assembly is suitable for converting fluid kinetic energy into electric energy; the piston is in sliding connection with the inner wall of the first accommodating cavity, the collecting piece extends into the first accommodating cavity to be connected with the piston, and part of the collecting piece positioned outside the first accommodating cavity is immersed in seawater; the backflow prevention piece comprises a first Tesla valve section, a forward opening of the first Tesla valve section is communicated with the first accommodating cavity, and a reverse opening of the first Tesla valve section is communicated with the inlet of the power generation assembly; the collection piece can drive the piston to slide in the first accommodating cavity under the wave action, so that fluid in the first accommodating cavity is conveyed into the power generation assembly after passing through the forward opening of the first Tesla valve section and the reverse opening of the first Tesla valve section in sequence. The Tesla valve has no movable part, so that the possibility of early damage of the wave energy under the action of high frequency is reduced, and the service life of the wave energy power generation device is prolonged.

Description

Wave energy power generation device

Technical Field

The utility model relates to the technical field of wave energy power generation, in particular to a wave energy power generation device.

Background

Wave energy is a specific form of ocean energy and is one of the most important energy sources in ocean energy, the wave energy has the advantages of high energy flow density, wide distribution range, reproducibility, no pollution and the like, wave energy power generation is a technology for generating electric energy by taking wave energy as power, and the wave energy power generation technology has important significance for relieving energy crisis and reducing environmental pollution.

The existing hydraulic wave energy power generation device comprises a floater, a connecting rod, a hydraulic cylinder, a hydraulic motor and a power generator, wherein the floater is immersed in sea water and is connected with the connecting rod, the floater moves up and down under the action of waves, the connecting rod drives a piston of the hydraulic cylinder to move, hydraulic oil of the hydraulic cylinder enters the hydraulic motor after passing through a check valve and drives the hydraulic motor to rotate, and the hydraulic motor drives the power generator to rotate and generate power.

However, in the hydraulic wave energy power generation device, the action frequency of the wave energy is very high, so that the check valve is opened and closed at high frequency, and the check valve is easily damaged in advance due to the high-frequency opening and closing, so that the service life of the hydraulic wave energy power generation device is shortened.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is that the hydraulic wave energy power generation device in the prior art has very high action frequency of wave energy, so that the check valve is opened and closed at high frequency, and the check valve is easily damaged in advance due to the high-frequency opening and closing, thereby shortening the service life of the hydraulic wave energy power generation device.

To this end, the present utility model provides a wave energy power generation device comprising:

a power generation assembly adapted to convert fluid kinetic energy into electrical energy;

a cylinder having a first accommodation chamber;

the piston is in sliding connection with the inner wall of the first accommodating cavity;

the collecting piece extends into the first accommodating cavity and is connected with the piston, and the part of the collecting piece outside the first accommodating cavity is immersed in seawater;

a backflow prevention member including a first tesla valve section having a forward opening in communication with the first receiving cavity and a reverse opening in communication with the power generation assembly inlet;

the collection piece can drive under the wave action the piston is in the first intracavity that holds, so that the fluid in the first chamber that holds is passed through in proper order the forward opening of first tesla valve section behind the reverse opening of first tesla valve section carry in the power generation subassembly.

Optionally, the above wave power generation device, the backflow preventing member further includes a second tesla valve section, the piston separates the first accommodating cavity is a second accommodating cavity and a third accommodating cavity, a forward opening of the first tesla valve section is communicated with the second accommodating cavity, a forward opening of the second tesla valve section is communicated with the third accommodating cavity, and a reverse opening of the first tesla valve section and a reverse opening of the second tesla valve section are communicated with the inlet of the power generation assembly.

Optionally, in the wave power generation device, the backflow preventing member further includes a third tesla valve section, a forward opening of the third tesla valve section is communicated with the outlet of the power generation assembly, and a reverse opening of the third tesla valve section is communicated with the second accommodating cavity and/or the third accommodating cavity.

Optionally, in the wave power generation device, the backflow preventing member further includes a fourth tesla valve section, a forward opening of the fourth tesla valve section is communicated with the outlet of the power generation assembly, and a reverse opening of the fourth tesla valve section is communicated with the third accommodating cavity.

Optionally, in the wave power generation device, the backflow preventing member further includes:

one end of the first pipeline is respectively connected with the reverse opening of the first Tesla valve section and the reverse opening of the second Tesla valve section, and the other end of the first pipeline is communicated with the inlet of the power generation assembly;

one end of the second pipeline is respectively connected with the forward opening of the third Tesla valve section and the forward opening of the fourth Tesla valve section, and the other end of the second pipeline is communicated with the power generation assembly outlet;

a third pipe, one end of which is respectively communicated with the reverse opening of the third tesla valve section and the forward opening of the first tesla valve section, and the other end of which is communicated with the second accommodating cavity;

and one end of the fourth pipeline is connected with the reverse opening of the fourth Tesla valve section and the forward opening of the second Tesla valve section respectively, and the other end of the fourth pipeline is communicated with the third accommodating cavity.

Optionally, the wave energy power generation device further comprises a storage tank, wherein an inlet of the storage tank is communicated with an outlet of the power generation assembly, and an outlet of the storage tank is communicated with the other end of the second pipeline.

Optionally, the wave energy power generation device, the power generation assembly includes:

the inlet of the hydraulic motor is communicated with the other end of the first pipeline, and the outlet of the hydraulic motor is communicated with the inlet of the storage tank;

and the generator is fixedly connected with the hydraulic motor through a transmission shaft.

Optionally, in the wave energy power generating device, the fluid in the first pipeline is conveyed to the hydraulic horse inlet after passing through the overflow valve, the throttle valve and the energy accumulator in sequence.

Optionally, in the wave power generation device, the collecting member includes:

a wobble plate immersed in the seawater;

the sliding rod is connected with the swinging plate at one end, and the other end of the sliding rod stretches into the first accommodating cavity to be fixedly connected with the piston.

Optionally, the wave energy power generation device further comprises a connecting plate, the connecting plate is suitable for being hinged with external equipment, the connecting plate is provided with a mounting groove, the swinging plate is spliced with the mounting groove, and one side, away from the swinging plate, of the connecting plate is hinged with the sliding rod.

The technical scheme provided by the utility model has the following advantages:

1. the utility model provides a wave energy power generation device which comprises a power generation assembly, a cylinder body, a piston, a collecting piece and a backflow prevention piece, wherein the power generation assembly is suitable for converting fluid kinetic energy into electric energy; the piston is in sliding connection with the inner wall of the first accommodating cavity, the collecting piece extends into the first accommodating cavity to be connected with the piston, and part of the collecting piece positioned outside the first accommodating cavity is immersed in seawater; the backflow prevention piece comprises a first Tesla valve section, a forward opening of the first Tesla valve section is communicated with the first accommodating cavity, and a reverse opening of the first Tesla valve section is communicated with the inlet of the power generation assembly; the collection piece can drive the piston to slide in the first accommodating cavity under the wave action, so that fluid in the first accommodating cavity is conveyed into the power generation assembly after passing through the forward opening of the first Tesla valve section and the reverse opening of the first Tesla valve section in sequence. The Tesla valve section replaces the traditional check valve, the backflow preventing effect can be achieved, and the Tesla valve has no movable part, so that the possibility of early damage caused by high-frequency wave energy effect is reduced, and the service life of the wave energy power generation device is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a wave energy power plant according to the present utility model;

fig. 2 is a schematic view of a backflow preventer in the wave power generation device provided by the utility model.

Reference numerals illustrate:

11. a hydraulic motor; 12. a generator; 13. a transmission shaft;

2. a cylinder;

3. a piston;

4. a collection member; 41. a swinging plate; 42. a slide bar; 43. a connecting plate;

5. a backflow preventing member; 51. a first tesla valve section; 52. a second tesla valve section; 53. a third tesla valve section; 54. a fourth tesla valve section; 55. a first pipe; 56. a second pipe; 57. a third conduit; 58. a fourth conduit;

6. a storage tank;

7. an overflow valve;

8. a throttle valve;

9. an accumulator;

p1, a first conveying pipeline; p2, a second conveying pipeline; p3, a third conveying pipeline; p4, a fourth conveying pipeline; p5, a fifth conveying pipeline; p6, sixth conveying pipeline.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

The Tesla valve type passive one-way conduction valve can enable fluid to flow unidirectionally, and when the fluid passes through the Tesla valve in the forward direction, the flow resistance is small, and the fluid can smoothly flow through the Tesla valve; the flow resistance is extremely high when the fluid passes back through the tesla valve and as the length of the tesla valve increases, it will be extremely difficult for the fluid to pass through the tesla valve.

Example 1

The embodiment provides a wave energy power generation device, as shown in fig. 1 and 2, which comprises a power generation assembly, a cylinder body 2, a piston 3, a collecting piece 4 and a backflow preventing piece 5, wherein the power generation assembly is suitable for converting fluid kinetic energy into electric energy, and the cylinder body 2 is provided with a first accommodating cavity; the piston 3 is in sliding connection with the inner wall of the first accommodating cavity, the collecting piece 4 extends into the first accommodating cavity to be connected with the piston 3, and part of the collecting piece 4 outside the first accommodating cavity is immersed in seawater; the backflow prevention member 5 includes a first tesla valve section 51, a forward opening of the first tesla valve section 51 communicates with the first accommodation chamber, and a reverse opening of the first tesla valve section 51 communicates with the power generation assembly inlet; the collecting piece 4 can drive the piston 3 to slide in the first accommodating cavity under the wave action, so that fluid in the first accommodating cavity is sequentially conveyed into the power generation assembly after passing through the forward opening of the first Tesla valve section 51 and the reverse opening of the first Tesla valve section 51.

The wave energy power generation decoration that this embodiment provided replaces traditional check valve through tesla valve section, can realize preventing the effect of refluence, and tesla valve does not have movable part, has consequently reduced wave energy high frequency and has acted and cause the possibility of damage in advance to wave energy power generation device's life has been promoted.

As shown in fig. 1 and fig. 2, the wave energy power generation device provided in this embodiment, the backflow prevention member 5 further includes a second tesla valve section 52, the cylinder body 2 is a hydraulic cylinder, the first accommodating cavity is provided in the cylinder body 2, the piston 3 is located in the first accommodating cavity, a sealing ring is sleeved on the periphery of the piston 3, the piston 3 is in sealing connection with the inner side wall of the first accommodating cavity through the sealing ring, and the piston 3 can slide in the first accommodating cavity, the first accommodating cavity is divided into a second accommodating cavity and a third accommodating cavity by the piston 3, the left side of the piston is the third accommodating cavity, the right side of the piston is the second accommodating cavity, the second accommodating cavity and the third accommodating cavity are filled with fluid, the fluid is hydraulic oil, the forward opening of the first tesla valve section 51 is communicated with the second accommodating cavity, the reverse opening of the first tesla valve section 51 and the reverse opening of the second tesla valve section 52 are both communicated with the power generation assembly inlet, and the hydraulic oil in the second accommodating cavity is sequentially conveyed to the power generation assembly through the forward opening of the first tesla valve section 51. The oil flows from the forward opening to the reverse opening of the first tesla valve section 51, so that the oil can be unblocked, and the oil in the third accommodating cavity is sequentially conveyed into the inlet of the power generation assembly after passing through the forward opening of the second tesla valve section 52 and the reverse opening of the second tesla valve section 52.

As shown in fig. 1 and 2, the wave energy power generation device provided in this embodiment further includes a third tesla valve section 53 and a fourth tesla valve section 54, the forward opening of the third tesla valve section 53 is in communication with the outlet of the power generation assembly, and the reverse opening of the third tesla valve section 53 is in communication with the second accommodation chamber; the forward opening of the fourth tesla valve section 54 communicates with the outlet of the power generation assembly, and the reverse opening of the fourth tesla valve section 54 communicates with the third receiving chamber; the oil in the power generation assembly is conveyed back into the second accommodating cavity after passing through the forward opening and the reverse opening of the third Tesla valve section 53 in sequence, and the oil in the power generation assembly is conveyed back into the third accommodating cavity after passing through the forward opening and the reverse opening of the fourth Tesla valve section 54 in sequence.

In an alternative embodiment, the fourth tesla valve section is eliminated, the forward opening of the third tesla valve section 53 communicates with the outlet of the power generation assembly, and the reverse opening of the third tesla valve section 53 communicates with the second and third receiving chambers, respectively.

As shown in fig. 1 and 2, the wave energy power generation device provided in this embodiment further includes a first pipe 55, a second pipe 56, a third pipe 57, and a fourth pipe 58, one end of the first pipe 55 is connected to the reverse opening of the first tesla valve section 51 and the reverse opening of the second tesla valve section 52, respectively, and the other end of the first pipe 55 is communicated with the inlet of the power generation assembly; one end of a second pipeline 56 is respectively connected with the forward opening of the third Tesla valve section 53 and the forward opening of the fourth Tesla valve section 54, and the other end of the second pipeline 56 is communicated with the outlet of the power generation assembly; one end of the third pipeline 57 is respectively communicated with the reverse opening of the third Tesla valve section 53 and the forward opening of the first Tesla valve section 51, and the other end of the third pipeline 57 is communicated with the second accommodating cavity; one end of the fourth pipe 58 is connected with the reverse opening of the fourth tesla valve section 54 and the forward opening of the second tesla valve section 52, respectively, and the other end of the fourth pipe 58 is communicated with the third accommodating chamber. The first tesla valve section 51, the second tesla valve section 52, the third tesla valve section 53 and the fourth tesla valve section 54 are enclosed to form a prismatic shape, and each pipe is respectively arranged between two adjacent tesla valve sections.

As shown in fig. 1 and 2, any tesla valve section is integrally formed by a plurality of straight channels and a plurality of circular arc channels, any one straight channel is obliquely arranged, two ends of the circular arc channel are respectively communicated with two communicated straight channels, the sizes and the shapes of the straight channels and the curved channels are not limited in this embodiment, and the size and the shape of the straight channels and the curved channels can be adjusted according to the needs of a person in the art.

As shown in fig. 1 and 2, the wave power generation device provided in this embodiment further includes a storage tank 6, where the storage tank 6 is an oil tank, an inlet of the storage tank 6 is communicated with an outlet of the power generation assembly through a fourth conveying pipeline P4, an outlet of the storage tank 6 is communicated with a second pipeline 56 through a fifth conveying pipeline P5, oil in the power generation assembly is conveyed into the storage tank 6 after passing through the fourth conveying pipeline P4, and oil in the storage tank 6 is conveyed into the second pipeline 56 after passing through the fifth conveying pipeline P5.

As shown in fig. 1 and 2, the wave power generation device provided in this embodiment further includes a hydraulic motor 11, a generator 12 and a transmission shaft 13, the second accommodating cavity is communicated with the third pipeline 57 through the first conveying pipeline P1, the third accommodating cavity is communicated with the fourth pipeline 58 through the second conveying pipeline P2, the first pipeline 55 is communicated with an inlet of the hydraulic motor 11 through the third conveying pipeline P3, an outlet of the hydraulic motor 11 is communicated with an inlet of the storage tank 6 through the fourth conveying pipeline P4, the hydraulic motor 11 is fixedly connected with the generator 12 through the transmission shaft 13, and when oil passes through the hydraulic motor 11, the oil performs work on the hydraulic motor 11, so that the hydraulic motor 11 rotates, and the hydraulic motor 11 drives the generator 12 to rotate through the transmission shaft 13 and generate power.

In an alternative embodiment, the power generation assembly includes a pair of permanent magnets and magnetohydrodynamic power generation pipes disposed opposite to each other, the pair of permanent magnets being disposed on both left and right sides of the power generation pipe for generating a magnetic field in a radial direction thereof in the power generation pipe, an inlet of the magnetohydrodynamic power generation pipe being in communication with the first pipe 55 through the third transfer pipe P3, and an outlet of the magnetohydrodynamic power generation pipe being in communication with the storage tank 6 through the fourth transfer pipe P4.

As shown in fig. 1 and 2, the wave power device provided in this embodiment further includes an overflow valve 7, a throttle valve 8, a sixth conveying pipeline P6, and an accumulator 9, where the throttle valve 8 and the accumulator 9 are both disposed on the third conveying pipeline P3, and the third conveying pipeline P3 is communicated with the fourth conveying pipeline P4 through the sixth conveying pipeline P6, and the overflow valve 7 is disposed on the sixth conveying pipeline P6. The throttle valve 8, the accumulator 9 and the overflow valve 7 are used for maintaining the flow stability of the working fluid in the pipeline.

As shown in fig. 1, in the wave energy power generation device provided in this embodiment, the collecting element 4 includes a swing plate 41, a sliding rod 42 and a connecting plate 43, a mounting groove is formed in the connecting plate 43, the mounting groove is a rectangular groove, the width of the mounting groove is adapted to the thickness of the swing plate 41, the swing plate 41 is inserted into the mounting groove, the connecting plate 43 is fixedly connected with the swing plate 41 in the mounting groove through a bolt, the connecting plate 43 is hinged with a floating body, in an alternative embodiment, the connecting plate 43 can also be hinged with a coastal wall, one side of the connecting plate 43 away from a hinge point is hinged with one end of the sliding rod 42, the other end of the sliding rod 42 extends into the first accommodating cavity to be fixedly connected with the piston 3, and the connection mode can be welding or bonding.

When the swinging plate 41 moves leftwards under the driving of waves under the left working condition, the swinging plate 41 drives the connecting plate 43 to rotate clockwise around a hinging point with the floating body, the connecting plate 43 pushes the sliding rod 42 to move rightwards, the sliding rod 42 drives the piston 3 to move rightwards, the piston 3 pushes fluid in the second accommodating cavity to enter the first conveying pipeline P1, along with the gradual rightwards movement of the piston 3, the fluid in the first conveying pipeline P1 sequentially passes through the first Tesla valve section 51 and then is conveyed into the third conveying pipeline P3, the fluid in the third conveying pipeline P3 sequentially passes through the throttle valve 8 and the accumulator 9 and then is conveyed into the hydraulic motor 11, meanwhile, part of the fluid in the third conveying pipeline P3 passes through the sixth conveying pipeline P6 and then enters the overflow valve 7, the hydraulic motor 11 is enabled to rotate after doing work by the fluid, the hydraulic motor 11 drives the generator 12 to rotate through the transmission shaft 13, the fluid after passing through the fourth conveying pipeline P4 and then is conveyed into the fourth conveying pipeline P6, the fluid in the storage tank P1 sequentially passes through the fifth conveying pipeline P5 and then enters the second storage tank 56, part of the fluid in the second pipeline P56 sequentially passes through the fourth Tesla valve section 54, the third pipeline P2, the third pipeline P3 and the third pipeline P5 and the third pipeline P3 and the fluid in the third pipeline P3 are sequentially pass through the third pipeline P5 and the third pipeline P5 section and the third pipeline P3 and the third pipeline section 55.

When the swinging plate 41 moves rightwards under the driving of waves under the right working condition, the swinging plate 41 drives the connecting plate 43 to rotate anticlockwise around a hinge point with the floating body, the connecting plate 43 pulls the sliding rod 42 to move leftwards, the sliding rod 42 drives the piston 3 to move leftwards, the piston 3 pushes fluid in the third accommodating cavity to enter the second conveying pipeline P2, along with gradual leftwards movement of the piston 3, the fluid in the second conveying pipeline P2 sequentially passes through the second Tesla valve section 52 and then is conveyed into the third conveying pipeline P3, the fluid in the third conveying pipeline P3 sequentially passes through the throttle valve 8 and the accumulator 9 and then is conveyed into the hydraulic motor 11, meanwhile, part of the fluid in the third conveying pipeline P3 passes through the sixth conveying pipeline P6 and enters the overflow valve 7, the fluid acts on the hydraulic motor 11 and then rotates, the hydraulic motor 11 drives the generator 12 to rotate through the transmission shaft 13, fluid after acting is conveyed into the storage tank 6 after passing through the fourth conveying pipeline P4, fluid in the storage tank 6 enters the second pipeline 56 after passing through the fifth conveying pipeline P5, part of fluid in the second pipeline 56 sequentially passes through the third Tesla valve section 53, the third pipeline 57 and the first conveying pipeline P1 and then is conveyed into the second accommodating cavity, part of fluid in the second pipeline 56 passes through the third Tesla valve section 53, the first Tesla valve section 51 and the first pipeline 55 and then is conveyed into the third conveying pipeline P3, and part of fluid in the second pipeline 56 passes through the fourth Tesla valve section 54, the second Tesla valve section 52 and the first pipeline 55 and then is conveyed into the third conveying pipeline P3.

The wobble plate 41 reciprocates under the action of waves, and the left working condition and the right working condition of the wave power generation device circulate in sequence.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A wave energy power plant, comprising:

a cylinder (2), the cylinder (2) having a first accommodation chamber;

the piston (3) is connected with the inner wall of the first accommodating cavity in a sliding manner;

the collecting piece (4) stretches into the first accommodating cavity to be connected with the piston (3), and the part of the collecting piece (4) outside the first accommodating cavity is immersed in seawater;

a backflow prevention member (5), the backflow prevention member (5) comprising a first tesla valve section (51), a forward opening of the first tesla valve section (51) being in communication with the first receiving cavity, a reverse opening of the first tesla valve section (51) being in communication with the power generation assembly inlet;

the collecting piece (4) can drive the piston (3) to slide in the first containing cavity under the action of waves, so that fluid in the first containing cavity sequentially passes through the forward opening of the first Tesla valve section (51) and the reverse opening of the first Tesla valve section (51) and then is conveyed into the power generation assembly.

2. Wave power unit according to claim 1, characterized in that the backflow prevention member (5) further comprises a second tesla valve section (52), the piston (3) separating the first receiving chamber into a second receiving chamber and a third receiving chamber, the forward opening of the first tesla valve section (51) being in communication with the second receiving chamber, the forward opening of the second tesla valve section (52) being in communication with the third receiving chamber, the reverse opening of the first tesla valve section (51) and the reverse opening of the second tesla valve section (52) being in communication with the power generating assembly inlet.

3. Wave power unit according to claim 2, characterized in that the backflow prevention member (5) further comprises a third tesla valve section (53), the forward opening of the third tesla valve section (53) being in communication with the outlet of the power generation assembly, the reverse opening of the third tesla valve section (53) being in communication with the second and/or third receiving chamber.

4. A wave power unit according to claim 3, characterized in that the backflow prevention member (5) further comprises a fourth tesla valve section (54), the forward opening of the fourth tesla valve section (54) being in communication with the outlet of the power generation assembly, the reverse opening of the fourth tesla valve section (54) being in communication with the third receiving cavity.

5. A wave power unit according to claim 4, characterized in that the backflow prevention member (5) further comprises:

a first pipe (55), one end of the first pipe (55) is respectively connected with the reverse opening of the first tesla valve section (51) and the reverse opening of the second tesla valve section (52), and the other end of the first pipe (55) is communicated with the inlet of the power generation assembly;

a second pipe (56), one end of the second pipe (56) is connected with the forward opening of the third tesla valve section (53) and the forward opening of the fourth tesla valve section (54), and the other end of the second pipe (56) is communicated with the power generation assembly outlet;

a third pipe (57), one end of the third pipe (57) is respectively communicated with a reverse opening of the third tesla valve section (53) and a forward opening of the first tesla valve section (51), and the other end of the third pipe (57) is communicated with the second accommodating cavity;

and one end of the fourth pipeline (58) is respectively connected with the reverse opening of the fourth Tesla valve section (54) and the forward opening of the second Tesla valve section (52), and the other end of the fourth pipeline (58) is communicated with the third accommodating cavity.

6. The wave energy power unit according to claim 5, further comprising a tank (6), the inlet of the tank (6) being in communication with the outlet of the power generation assembly, the outlet of the tank (6) being in communication with the other end of the second pipe (56).

7. The wave energy power unit of claim 6, wherein the power generation assembly comprises:

the inlet of the hydraulic motor (11) is communicated with the other end of the first pipeline (55), and the outlet of the hydraulic motor (11) is communicated with the inlet of the storage tank (6);

and the generator (12) is fixedly connected with the hydraulic motor (11) through a transmission shaft (13).

8. A wave energy power unit according to claim 7, characterized in that the fluid in the first conduit (55) is fed to the inlet of the hydraulic motor (11) after passing through a relief valve (7), a throttle valve (8) and an accumulator (9) in sequence.

9. Wave power unit according to any of claims 1 to 8, characterized in that the collecting member (4) comprises:

-a wobble plate (41), said wobble plate (41) being immersed in said sea water;

the sliding rod (42), sliding rod (42) one end with swing board (41) are connected, sliding rod (42) other end stretches into first accommodation chamber with piston (3) fixed connection.

10. Wave power unit according to claim 9, characterized in that the collecting member (4) further comprises a connecting plate (43), the connecting plate (43) being adapted to be hinged with external equipment, the connecting plate (43) having a mounting groove, the pendulum plate (41) being plugged into the mounting groove, the side of the connecting plate (43) remote from the pendulum plate (41) being hinged with the slide bar (42).