Wave energy extraction and conversion device and method of use

Abstract

The utility model provides a kind of wave energy efficient extraction conversion device, its structure includes: wave body, telescopic hydraulic system and support frame three parts;Wherein, wave body is a plate-like hinge structure that can be telescopic deformation before and after, under the surging impact of wave, this structure can carry out telescopic reciprocating motion before and after in horizontal direction, to drive telescopic hydraulic system to convert wave energy into hydraulic energy, for people to use.The wave energy extraction conversion device described in the utility model can efficiently extract and convert wave energy on the section perpendicular to the wave energy transmission direction, and the device is easy to operate, reliable, strong in applicability, low in cost, can dissipate wave, reduce wave, protect bank and dike while extracting and utilizing wave energy;Its invention provides a powerful new means for human to tame and harness inexhaustible wave energy, and opens up a new way to meet the growing demand of human for green renewable energy.

Description

Technical Field

[0001] This invention relates to the field of ocean wave energy collection, extraction, conversion and utilization technology, specifically to a mechanical device and engineering measures for efficiently collecting, extracting and converting wave energy. Background Technology

[0002] With the continuous development of the world economy and the ongoing progress of human society, the demand for energy, especially green and renewable energy, is becoming increasingly strong. In recent years, ocean energy, as an inexhaustible source of green and renewable energy, has received increasing attention. Among these, wave energy, due to its vast reserves and wide distribution, has become a focus of development for various countries. Wave energy refers to the kinetic and potential energy possessed by ocean surface waves. It is generated by wind transferring energy to the ocean, essentially absorbing wind energy. Although wave energy is the most unstable type of ocean energy, its abundant reserves, high energy density, and wide distribution give it enormous development and utilization potential. With widespread global attention to wave energy development and utilization technologies, various technologies have emerged. The instability of wave energy greatly increases the difficulty of its extraction and development. Currently, although many countries worldwide, including my country, have conducted long-term sea trials of wave energy power generation devices, wave energy development technologies are still largely in the demonstration operation stage. Key technical challenges remain to be overcome, including the survivability of wave energy power generation devices in harsh environments, their long-term operational reliability, high-efficiency conversion capabilities, and especially the efficient extraction of wave energy. Meanwhile, existing wave energy power generation devices are mostly installed and operated in near-shore waters. For example, the Mutricu wave power station in Spain has an installed capacity of 296 kilowatts and has generated an average of 40 megawatt-hours of electricity per year since it started operating in 2012. It has not yet carried out demonstration operation 6 kilometers offshore where wave energy resources are better.

[0003] While vigorously carrying out research on wave energy utilization technology, countries around the world are also facing the challenge of wind and wave protection for nearshore engineering projects, especially in the research of buoyancy breakwaters that combine wave energy utilization technology.

[0004] Based on the aforementioned problems in wave energy development and utilization technology, we have developed a wave-swallowing type high-efficiency wave energy extraction and conversion device. Summary of the Invention

[0005] The purpose of this invention is to creatively design a wave-swallowing device for efficient collection, extraction and conversion of wave energy and to provide an application method for this device, while endowing the device with strong wind and wave survivability and wide applicability.

[0006] The present invention achieves the above objectives through the following technical solutions:

[0007] A wave-swallowing energy extraction and conversion device comprises three parts: a wave-swallowing body, a telescopic hydraulic system, and a support frame. The wave-swallowing body is a plate-shaped hinged structure capable of telescopic deformation. In the horizontal direction, under the impact of surging waves, the wave-swallowing body can reciprocate by folding and deforming its body, thereby converting wave energy into mechanical energy. The wave-swallowing body consists of an energy-concentrating head, upper and lower hinge plates, wing plates, a tail box, and a sliding rail float. The energy-concentrating head of the wave-swallowing body is a trumpet-shaped structure with rollers on both sides. At the very front of the wave-swallowing body, its function is to withstand the surging impact of the waves and move linearly along the guide rail under the impact of the waves. The upper and lower hinge plates of the wave-swallowing body are two plate structures connected by hinges in the middle. The front ends of the upper and lower hinge plates are hinged to the energy-concentrating head, and the rear ends are hinged to the tail box of the wave-swallowing body. The upper and lower hinge plates can fold and deform upward and downward respectively under the action of external forces. The tail box of the wave-swallowing body is a box structure that serves to fix the wave-swallowing body. The rear end of the tail box is fixed to the rear frame of the support frame. The wing plates of the wave-swallowing body are located on the left and right sides of the wave-swallowing body. The rear end of the wing plate is fixed to the tail box of the wave-swallowing body, and the front end is pulled together by multiple bolts and tie rods. The wing plate and tail box together form a narrow groove to clamp and constrain the upper and lower hinge plates of the wave-swallowing body. The sliding rail pontoon of the wave-swallowing body is located outside the wing plate of the wave-swallowing body. Its rear end is fixed to the tail box of the wave-swallowing body, and its front end is pulled together by bolts and tie rods. Its function is to float the wave-swallowing body from the left and right sides, so that it floats on the water surface and maintains horizontal balance. At the same time, it also provides a linear track for the movement of the wave-swallowing body's energy-concentrating head. The main body of the telescopic hydraulic system of the wave-swallowing wave energy extraction and conversion device is a telescopic hydraulic cylinder, which is divided into... Distributed on the left and right sides of the wave swallower, the rear end of the hydraulic cylinder is fixed to the tail box of the wave swallower, and the front end is fixed to the energy-concentrating head of the wave swallower through a hinge support. Its function is to convert the mechanical energy of the reciprocating motion of the energy-concentrating head of the wave swallower into the hydraulic energy of the liquid for people to use. The support frame of the wave swallower wave energy extraction and conversion device is a semi-submersible frame with a truss structure, consisting of a chassis, guide wing walls, cover beams and a rear frame. Its function is to provide external skeletal support and protection for the wave swallower, enhance the wave swallower's ability to survive wind and waves, and also have the function of concentrating and guiding the wave swallower.

[0008] In this embodiment, the upper and lower hinge plates of the wave-swallowing body of the wave-swallowing energy extraction and conversion device have windows. The windows of the upper hinge plate are open and close to the middle hinge. The windows of the lower hinge plate have one-way flaps. The opening and closing direction of the flaps is opposite to the up-and-down folding movement direction of the lower hinge plate.

[0009] In this embodiment, the upper and lower hinge plates, left and right wing plates, energy-concentrating head and tail box of the wave-swallowing energy extraction and conversion device together form a wave-swallowing body cavity. The volume of this cavity will change due to the back-and-forth movement of the energy-concentrating head, which will cause the upper and lower hinge plates to fold and deform upward and downward respectively.

[0010] In this embodiment, the wave-swallowing energy extraction and conversion device's wave-swallowing body energy-concentrating head is fastened to the slide rail of the slide rail float box by rollers on the left and right sides, and rolls along the slide rail.

[0011] In this embodiment, the neck of the wave-swallowing energy-concentrating head of the wave-swallowing energy extraction and conversion device is provided with a water drainage groove. The front end of this water drainage groove (near the horn mouth of the energy-concentrating head) is narrow and the rear end (near the cavity of the wave-swallowing body) is wide, so as to facilitate the water in the cavity of the wave-swallowing body to gush out.

[0012] In this embodiment, each part of the wave-swallowing wave energy extraction and conversion device has an appropriate buoyancy configuration. Through the configuration of the self-weight and buoyancy of each part, the wave-swallowing wave energy extraction and conversion device as a whole can maintain a horizontal balance in a semi-submerged state on the water surface.

[0013] In this embodiment, the wave-swallowing wave energy extraction and conversion device is a modular structure, and multiple units can be connected in parallel for application.

[0014] In this embodiment, the wave-swallowing wave energy extraction and conversion device can be installed and fixed on a fixed foundation on the shore or in shallow sea, or it can float on the sea surface in a semi-submersible form and be anchored to anchor piles in deep sea with anchor chains.

[0015] The application methods of the aforementioned wave-swallowing wave energy extraction and conversion device include the following:

[0016] On the sea surface, a wave-swallowing energy extraction and conversion device is positioned facing the direction of the wind and waves. When the wave crest surges and contacts the energy-concentrating head of the wave-swallowing body, the energy-concentrating head is pushed backward along the slide rail by the impact of the wave crest. This causes the upper and lower hinge plates to fold and deform upward and downward, respectively. As the upper and lower hinge plates fold and deform, the cavity volume of the wave-swallowing body increases. At the same time, when the lower hinge plate folds downward and backward in the water, seawater rushes through the flap gate of the lower hinge plate and into the enlarged cavity of the wave-swallowing body. When the wave crest passes... Afterwards, due to the influx of a large amount of water into the wave-swallowing body cavity, the water level will be higher than the sea level, and even higher than the water level of the subsequent wave trough. At this time, the water in the wave-swallowing body cavity will impact the energy-concentrating head in the opposite direction, pushing the energy-concentrating head back out and resetting it along the slide rail, ready to meet the impact of the next wave crest. As a result, the wave-swallowing body will undergo a linear reciprocating motion. Under the repeated surging and impact of the waves, this linear reciprocating motion of the wave-swallowing body will continue to occur repeatedly in the form of creep, thereby driving the telescopic hydraulic system to continuously generate hydraulic energy for people to use.

[0017] In this embodiment, the major innovation of the novel wave-swallowing wave energy extraction and conversion device compared with existing wave energy utilization technologies lies in:

[0018] First, the wave-swallowing wave energy extraction and conversion device has a strong wave energy collection and extraction capability and a high wave energy utilization rate. Wave energy is a type of energy that is transmitted directionally along the coastal plane. Most existing wave energy utilization technologies can only utilize wave energy in a point or line direction, such as oscillating float type and sea snake type. However, the parallel use of wave-swallowing wave energy extraction and conversion devices can collect and extract wave energy directionally on a cross section perpendicular to the wave energy transmission direction. Theoretically, it can completely extract and utilize wave energy on a certain area of ​​ocean cross section.

[0019] Secondly, the wave-swallowing energy extraction and conversion device has high energy conversion efficiency. During the backward movement of the wave-swallowing body in the wave-swallowing energy conversion device, although a small amount of energy is lost due to friction and seawater resistance, this loss is minimal. This is because the surrounding seawater is surging in the same direction as the wave-swallowing body, rather than remaining stationary or moving in the opposite direction. Therefore, the water's resistance to the wave-swallowing body is not significant. Furthermore, the rolling friction resistance of the wave-swallowing body's energy-concentrating head on its track is also relatively small. Thus, the wave energy loss due to friction and seawater resistance is less than 20% of the total energy, and over 80% of the wave energy is directly used to drive the hydraulic system and is converted into hydraulic energy.

[0020] Third, the wave-swallowing wave energy extraction and conversion device has a wide range of applications and strong applicability. Existing wave energy utilization technologies, such as buoyancy pendulum wave generators, can also collect and utilize wave energy in a directional manner, but due to technical limitations, they can only be deployed in shallow sea areas. In contrast, the wave-swallowing wave energy extraction and conversion device can be used in both shallow sea areas near the shore and deep sea areas.

[0021] Fourth, the wave-swallowing wave energy extraction and conversion device has low operating costs. The wave-swallowing wave energy extraction and conversion device has a simple structure, strong integrity, and strong resistance to wind and waves. Its motion mode is a low-speed linear reciprocating creep, and the motion mode is simple. Therefore, the failure rate of the device is relatively low, and it is easy to operate, maintain and manage.

[0022] Fifth, multiple wave-absorbing wave energy extraction and conversion devices connected in parallel also function as buoyancy breakwaters, extracting and converting wave energy while also playing a role in wave dissipation, wave reduction, and shoreline protection.

[0023] The beneficial effects are as follows: the wave-swallowing wave energy extraction and conversion device can efficiently extract and convert wave energy on a cross-section perpendicular to the direction of wave energy transmission. Moreover, the device is easy to operate, reliable, highly applicable, and low in cost. While absorbing and utilizing wave energy, it can also dissipate waves, reduce waves, and protect the shore and dikes. Its invention provides a powerful new means for mankind to tame and harness the inexhaustible wave energy. Attached Figure Description

[0024] Figure 1 Side view of a wave energy extraction and conversion device;

[0025] In the diagram: 1 is the wave-swallowing body; 2 is the telescopic hydraulic system.

[0026] Figure 2 , Figure 3 Axial view of the wave-swallowing body;

[0027] In the diagram: 3 is the energy-concentrating head; 4 is the upper hinge plate; 5 is the lower hinge plate; 6 is the wing plate; 7 is the tail box; 8 is the sliding rail float box; 12 is the bolt tie rod.

[0028] Figure 4 Axial view of the wave energy extraction and conversion device;

[0029] Figure 5 Side view of the wave-swallowing, focused energy head;

[0030] In the diagram: 9 is a roller; 14 is a drain trough; 16 is the buoyancy configuration on the energy-concentrating head.

[0031] Figure 6 Rear axis view of the wave-swallowing, focusing head;

[0032] In the diagram: 11 is the connecting hinge.

[0033] Figure 7 , Figure 8 Front and rear axial view of the wave-swallowing energy-concentrating head;

[0034] Figure 9 Schematic diagram of the hinge plate on the wave swallower;

[0035] In the diagram: 19 is a window with a top hinge.

[0036] Figure 10 Schematic diagram of the lower hinge plate of the wave swallower;

[0037] In the diagram: 13 is a one-way flap door with a lower hinge plate.

[0038] Figure 11 : Wave-swallowing body sliding rail pontoon;

[0039] In the diagram: 10 is the roller guide rail of the wave-swallowing energy-concentrating head.

[0040] Figure 12 Axial view of the tail box of the wave-swallowing body;

[0041] Figure 13 : A simplified diagram illustrating the effect of the telescopic hydraulic cylinder of the wave energy extraction and conversion device.

[0042] Figure 14 Axial view of the wave-swallowing airfoil;

[0043] Figure 15 : Schematic diagram of the effect of parallel wave swallowing bodies;

[0044] Figure 16 Schematic diagram of the fixed foundation installation of the wave energy extraction and conversion device;

[0045] In the diagram: 17 is the mounting base; 23 is the sea level.

[0046] Figure 17 , Figure 18 Schematic diagram of the support frame of the wave-swallowing energy extraction and conversion device;

[0047] In the diagram: 19 is the air deflector wing wall; 20 is the chassis; 21 is the cap beam; 22 is the rear frame.

[0048] Figure 19 , Figure 20 Schematic diagram of the overall effect of the wave energy extraction and conversion device.

[0049] Figure 21 Schematic diagram of the wave-swallowing buoyancy breakwater effect. Detailed Implementation

[0050] The present invention will be further described below with reference to the accompanying drawings:

[0051] As attached Figure 1-21 As shown, a wave-swallowing energy extraction and conversion device comprises three parts: a wave-swallowing body 1, a telescopic hydraulic system 2, and a support frame 18. The wave-swallowing body 1 is a plate-type hinge structure that can extend and retract forward and backward. In the horizontal direction, under the impact of surging waves, the wave-swallowing body 1 can reciprocate forward and backward by folding and deforming its body, thereby converting wave energy into mechanical energy. The wave-swallowing body of the wave-swallowing device is composed of an energy-concentrating head 3, upper and lower hinge plates 4 and 5, wing plates 6, a tail box 7, and a sliding rail float box 8. The energy-concentrating head 3 of the wave-swallowing body is a trumpet-shaped structure with rollers 9 on both sides. It is located at the very front of the wave-swallowing body, and its function is to bear the surging impact of the waves and move linearly along the slide rail 10 under the impact of the waves; the upper and lower hinge plates 4 and 5 of the wave-swallowing body are two plate structures connected in the middle by hinge 11. The front ends of the upper and lower hinge plates 4 and 5 are hinged to the energy-concentrating head 3, and the rear ends are hinged to the tail box 7 of the wave-swallowing body. The upper and lower hinge plates 4 and 5 can be folded upward and downward respectively under the action of external force; the tail box 7 of the wave-swallowing body is a box structure that serves to fix the wave-swallowing body 1. The rear end of the tail box 7 is fixed to the rear frame 22 of the support frame 18; the wing plate 6 of the wave-swallowing body is located at the wave-swallowing body 1. On the left and right sides, the rear end of the wing plate 6 is fixed to the tail box 7 of the wave-swallowing body, and the front end is pulled together by multiple bolts and tie rods 12. The wing plate 6 and the tail box 7 together form a narrow groove to clamp and constrain the upper and lower hinge plates 4 and 5 of the wave-swallowing body. The slide rail float box 8 of the wave-swallowing body is located outside the wing plate 6 of the wave-swallowing body. Its rear end is fixed to the tail box 7 of the wave-swallowing body, and its front end is pulled together by bolts and tie rods 12. Its function is to float the wave-swallowing body 1 from the left and right sides, so that it floats on the water surface and maintains horizontal balance. At the same time, it also provides a linear slide rail 10 for the movement of the wave-swallowing body energy-concentrating head 3. The main body of the telescopic hydraulic system of the wave-swallowing wave energy extraction and conversion device is a telescopic fluid. Hydraulic cylinders 2 are distributed on the left and right sides of the wave swallower. The rear end of the hydraulic cylinder 2 is fixed to the tail box 7 of the wave swallower, and the front end is fixed to the energy-concentrating head 3 of the wave swallower through a hinge support. Its function is to convert the mechanical energy of the reciprocating motion of the energy-concentrating head 3 of the wave swallower into the hydraulic energy of the liquid for people to use. The support frame 18 of the wave swallower wave energy extraction and conversion device is a semi-submersible frame with a truss structure, consisting of a chassis 20, a guide wing wall 19, a cover beam 21 and a rear frame 22. Its function is to provide external skeletal support and protection for the wave swallower 1, enhance the wind and wave survival ability of the wave swallower 1, and also have the function of concentrating and guiding the wave swallower.

[0052] In this embodiment, the upper and lower hinge plates 4 and 5 of the wave-swallowing body of the wave-swallowing energy extraction and conversion device have windows. The window of the upper hinge plate 4 is open and close to the middle hinge. The window of the lower hinge plate 5 has a one-way flap 13. The opening and closing direction of the flap is opposite to the up and down folding movement direction of the lower hinge plate.

[0053] In this embodiment, the upper and lower hinge plates 4 and 5, the left and right wing plates 6, the energy-concentrating head 3, and the tail box 7 of the wave-swallowing body of the wave-swallowing energy extraction and conversion device together form a wave-swallowing body cavity 14. The volume of this cavity 14 will change due to the back-and-forth movement of the energy-concentrating head 3, which will cause the upper and lower hinge plates 4 and 5 to fold upward and downward respectively.

[0054] In this embodiment, the wave-swallowing energy extraction and conversion device's wave-swallowing body energy-concentrating head 3 is engaged with the left and right side rollers 9 and rolls on the slide rail 10 of the side float box.

[0055] In this embodiment, the neck of the wave-swallowing energy-concentrating head of the wave-swallowing energy extraction and conversion device is provided with a water drain trough 15. The front end of the water drain trough 15 (near the horn of the energy-concentrating head) is narrow and the rear end (near the cavity of the wave-swallowing body) is wide, so that the water in the cavity 14 of the wave-swallowing body can be sprayed out.

[0056] In this embodiment, each part of the wave-swallowing wave energy extraction and conversion device has an appropriate buoyancy configuration 16. Through the configuration of the self-weight and buoyancy of each part, the wave-swallowing wave energy extraction and conversion device as a whole can maintain a horizontal balance in a semi-submerged state on the water surface.

[0057] In this embodiment, the wave-swallowing wave energy extraction and conversion device is a modular structure, and multiple units can be connected in parallel for application.

[0058] In this embodiment, the wave-swallowing wave energy extraction and conversion device can be installed and fixed on a fixed foundation on the shore or in shallow sea, or it can float on the sea surface in a semi-submersible form and be anchored to anchor piles in deep sea with anchor chains.

[0059] The application methods of the aforementioned wave-swallowing wave energy extraction and conversion device include the following:

[0060] On the sea surface, a wave-swallowing energy extraction and conversion device is positioned facing the direction of the wind and waves. When the wave crests surge and contact the energy-concentrating head 3 of the wave-swallowing body, the energy-concentrating head 3 will be pushed backward along the slide rail 10 under the impact of the wave crests. This will push the upper and lower hinge plates 4 and 5 to fold and deform upward and downward, respectively. As the upper and lower hinge plates 4 and 5 fold and deform, the volume of the wave-swallowing body cavity 14 will increase. At the same time, when the lower hinge plate 5 folds downward and backward in the water, seawater will rush through the flap gate 13 of the lower hinge plate and flow into the enlarged wave-swallowing body cavity 14. After the wave crest passes, the water level in the cavity 14 of the wave-swallowing body will be higher than the sea level and even higher than the water level of the subsequent wave trough due to the large amount of water that rushes in. At this time, the water in the cavity 14 of the wave-swallowing body will impact the energy-concentrating head in the opposite direction, pushing the energy-concentrating head back out and resetting it along the slide rail, ready to meet the impact of the next wave crest. As a result, the wave-swallowing body 1 will undergo a linear reciprocating motion. Under the repeated surging and impact of the waves, this linear reciprocating motion of the wave-swallowing body 1 will continue to occur repeatedly in the form of creep, thereby driving the telescopic hydraulic system 2 to continuously generate hydraulic energy for people to use.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wave-swallowing wave energy extraction and conversion device, characterized in that: The wave-swallowing energy extraction and conversion device consists of three parts: a wave-swallowing body, a telescopic hydraulic system, and a support frame. The wave-swallowing body is a plate-shaped hinged structure that can extend and retract forward and backward. In the horizontal direction, under the impact of surging waves, the wave-swallowing body can reciprocate by folding and deforming its body, thereby converting wave energy into mechanical energy. The wave-swallowing body is composed of an energy-concentrating head, upper and lower hinge plates, wing plates, a tail box, and a sliding rail float. The energy-concentrating head of the wave-swallowing body is a trumpet-shaped structure with rollers on both sides. At the very front, its function is to withstand the surging impact of waves and move linearly along the slide rail under the impact of the waves; the upper and lower hinge plates of the wave swallower are two plate structures connected by hinges in the middle. The front ends of the upper and lower hinge plates are hinged to the energy-concentrating head, and the rear ends are hinged to the tail box of the wave swallower. The upper and lower hinge plates can fold and deform upward and downward respectively under the action of external force; the tail box of the wave swallower is a box structure that serves to fix the wave swallower. The rear end of the tail box is fixed to the rear frame of the support frame; the wing plates of the wave swallower are located on the left and right sides of the wave swallower. The rear end of the wave-swallowing body is fixed to the tail box of the wave-swallowing body, and the front end is pulled together by multiple bolts and rods. The wing plates and the tail box together form a narrow groove to clamp and constrain the upper and lower hinge plates of the wave-swallowing body. The sliding rail pontoon of the wave-swallowing body is located on the outside of the wing plates of the wave-swallowing body. Its rear end is fixed to the tail box of the wave-swallowing body, and its front end is pulled together by bolts and rods. Its function is to float the wave-swallowing body from the left and right sides, so that it floats on the water surface and maintains horizontal balance. At the same time, it also provides a linear track for the movement of the wave-swallowing body's energy-concentrating head. The main body of the telescopic hydraulic system of the wave-swallowing wave energy extraction and conversion device is a telescopic hydraulic cylinder, which is distributed... On the left and right sides of the wave swallower, the rear end of the hydraulic cylinder is fixed to the tail box of the wave swallower, and the front end is fixed to the energy-concentrating head of the wave swallower through a hinge support. Its function is to convert the mechanical energy of the reciprocating motion of the energy-concentrating head of the wave swallower into the hydraulic energy of the liquid for people to use. The support frame of the wave swallower wave energy extraction and conversion device is a semi-submersible frame with a truss structure, consisting of a chassis, guide wing wall, cover beam and rear frame. Its function is to provide the outer skeleton support and protection for the wave swallower, enhance the wave swallower's wind and wave survivability, and also have the function of concentrating and guiding the wave swallower.

2. The wave-swallowing wave energy extraction and conversion device according to claim 1, characterized in that: The upper and lower hinge plates of the wave-swallowing body have openings. The openings on the upper hinge plate are open and close to the middle hinge. The openings on the lower hinge plate have one-way flaps, and the opening and closing direction of the flaps is opposite to the up-and-down folding movement direction of the lower hinge plate.

3. The wave-swallowing wave energy extraction and conversion device according to claim 1, characterized in that: The upper and lower hinge plates, left and right wing plates, energy-concentrating head, and tail box of the wave-swallowing body together form a wave-swallowing body cavity. The volume of this cavity will change due to the forward and backward movement of the energy-concentrating head, which will cause the upper and lower hinge plates to fold and deform upward and downward respectively.

4. The wave-swallowing wave energy extraction and conversion device according to claim 1, characterized in that: The energy-concentrating head of the wave-swallowing body is engaged with the slide rail of the slide rail pontoon by rollers on the left and right sides, and rolls along the slide rail.

5. The wave-swallowing wave energy extraction and conversion device according to claim 3, characterized in that: The energy-concentrating head of the wave swallower has a water drainage channel at its neck. The front end of this drainage channel, which is near the horn of the energy-concentrating head, is narrow, while the rear end, which is near the cavity of the wave swallower, is wide, so that the water inside the cavity of the wave swallower can gush out in a certain direction.

6. The wave-swallowing wave energy extraction and conversion device according to claim 1, characterized in that: The wave-swallowing energy extraction and conversion device has appropriate buoyancy configurations on each part. Through the configuration of the self-weight and buoyancy of each part, the wave-swallowing energy extraction and conversion device as a whole can maintain a horizontal balance in a semi-submerged state on the water surface.

7. The wave-swallowing wave energy extraction and conversion device according to claim 1, characterized in that: The wave-swallowing energy extraction and conversion device is a modular unit structure, with multiple modular units connected in parallel for application.

8. The wave-swallowing wave energy extraction and conversion device according to claim 1, characterized in that: Wave-swallowing energy extraction and conversion devices can be installed and fixed on a fixed foundation on the shore or in shallow sea, or they can float on the sea surface in a semi-submersible form and be anchored to anchor piles in deep sea with anchor chains.

9. The application method of the wave-swallowing wave energy extraction and conversion device according to claim 1, characterized in that: On the sea surface, a wave-swallowing energy extraction and conversion device is positioned facing the direction of the wind and waves. When the wave crest contacts the energy-concentrating head of the wave-swallowing body, the energy-concentrating head is pushed backward along the slide rail by the impact of the wave crest. This causes the upper and lower hinge plates to fold and deform upward and downward, respectively. As the upper and lower hinge plates fold and deform, the cavity of the wave-swallowing body expands. At the same time, when the lower hinge plate folds downward in the water, seawater rushes through the flap gate of the lower hinge plate and into the enlarged cavity of the wave-swallowing body. When the wave crest passes... Later, due to the influx of a large amount of water into the wave-swallowing body, the water level will be higher than the sea level, and even higher than the water level of the subsequent wave trough. At this time, the water in the wave-swallowing body will impact the energy-concentrating head in the opposite direction, pushing the energy-concentrating head back to its original position along the slide rail to meet the impact of the next wave crest. As a result, the wave-swallowing body will undergo a linear reciprocating motion. Under the repeated surging and impact of the waves, this linear reciprocating motion of the wave-swallowing body will continue to occur repeatedly in the form of creep, thereby driving the telescopic hydraulic system to generate hydraulic energy for people to use.

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