Wave energy inertial hydraulic differential power generation device

Abstract

The application discloses a wave energy inertia hydraulic differential power generation device which is composed of a floating body and an inertia hydraulic differential power generation system; the inertia hydraulic differential power generation system is composed of at least two inertia force hydraulic transformers, a pipeline generator, a pipeline and a check valve; a new power generation method is adopted to convert the fluctuation inertia force of sea waves into liquid pressure difference, to cause liquid circulation flow, and to drive the pipeline generator to generate power. The device can generate power without being connected with the coast or the sea bottom, and can generate power after being launched into water. Main power generation parts are wrapped in the floating body and are isolated from the marine environment, and the device has strong wind and wave resistance, strong corrosion resistance, low operation and maintenance cost, low manufacturing cost and high power generation efficiency. The device can reduce the cost of sea wave power generation and promote commercial application of sea wave power generation.

Description

Technical Field

[0001] The present invention relates to a device and method for generating electricity using wave energy, more specifically, utilizing the inertial force of undulating waves to convert into a liquid pressure difference, thereby driving the liquid to circulate and flow, and the liquid flow drives a pipeline generator to generate electricity. Background Technology

[0002] Oceans cover more than 70% of the Earth's surface and contain enormous energy. Humans have long been dedicated to utilizing wave energy for power generation. Currently, the main wave power generation technologies fall into three categories: mechanical, pneumatic, and hydraulic. Mechanical wave power uses waves to drive a floating body in reciprocating motion, converting mechanical motion into unidirectional rotational motion, which drives a generator. Pneumatic wave power uses waves to move air in an air chamber, which in turn drives a turbine to generate electricity. Hydraulic wave power uses waves to drive a floating body in reciprocating motion; the relative motion between the floating bodies or between the floating body and a base drives the movement of liquid within a piston, which in turn drives a generator via a hydraulic motor. Currently, there are a few commercial applications of wave power generation, but large-scale commercial application is not possible. Current wave power generation requires large investments, has low efficiency, and existing wave power generation devices have unsatisfactory wind and wave resistance and high maintenance costs, making the cost of wave power generation far greater than conventional power generation, thus preventing large-scale commercial application. The wave energy inertial hydraulic differential power generation device uses a new power generation method, converting the inertial force of wave undulations into a liquid pressure difference, causing liquid circulation, which drives a pipeline generator to generate electricity. Wave energy inertial hydraulic differential power generation devices can generate electricity without being connected to the coast or seabed, saving the cost of onshore or seabed connection bases and related equipment. The main power generation components are encased in a buoy, isolated from the marine environment, providing strong resistance to wind and waves, strong corrosion resistance, and low operation and maintenance costs. The main components of the wave energy inertial hydraulic differential power generation device, such as the buoy and pipes, can be made of inexpensive materials such as plastic or fiberglass. The required materials and parts are all mass-produced industrial products, saving manufacturing costs. High-density, high-flow-rate liquids or increasing the weight of inertial force pressure blocks can improve power generation efficiency, reduce the cost of wave power generation, and promote the commercial application of wave power generation. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the wave energy inertial hydraulic differential power generation device of the present invention has the following advantages: it adopts a new wave power generation method, has low manufacturing cost, high power generation efficiency, good wind and wave resistance, strong corrosion resistance, low operation and maintenance cost, low power generation cost, and can promote the commercial application of wave power generation.

[0004] This invention relates to a wave energy inertial hydraulic differential power generation device, comprising: a float and an inertial hydraulic differential power generation system. The float floats on the sea surface and oscillates around a horizontal or vertical axis with the waves. During oscillation, the two ends of the float undergo opposite acceleration movements in the vertical direction, and the acceleration directions of the two ends in the vertical direction are opposite. The inertial hydraulic differential power generation system consists of at least two inertial force hydraulic transformers, a pipeline generator, a pipeline, and a check valve. The inertial force hydraulic transformers are located at both ends of the float and pressurize or depressurize the liquid when subjected to inertial force. When one inertial force hydraulic transformer pressurizes and the other depressurizes, a pressure difference is generated in the liquid between the two inertial force hydraulic transformers, driving the liquid to flow in the pipeline. The pipeline generator is installed on the pipeline and drives the impeller inside the pipeline generator to rotate and generate electricity when the liquid flows in the pipeline. The pipeline connects the inertial force hydraulic transformers, the pipeline generator, and the check valve into a liquid circuit, allowing the liquid to circulate in a directional manner within the pipeline circuit. The check valve is used to adjust the initial flow direction of the liquid in the pipeline, so that the liquid circulates in a fixed direction.

[0005] Once the liquid flow direction is normal, it can maintain a fixed flow direction in the pipeline due to its own inertia. The check valve can stop working or be canceled. The check valve can be integrated into the pipeline generator, meaning that the pipeline generator can only rotate in one direction and cannot rotate in the opposite direction.

[0006] When the liquid within the inertial hydraulic differential power generation system rises and falls with the waves, it is affected by the change in its own gravitational potential energy, causing a pressure difference. However, compared to the pressure difference generated by the inertial force hydraulic transformer, the pressure difference caused by the change in gravitational potential energy is much smaller. When the pressure difference caused by the change in gravitational potential energy is in the same direction as the pressure difference generated by the inertial force hydraulic transformer, it is beneficial for power generation; when the pressure difference caused by the change in gravitational potential energy is in the opposite direction to the pressure difference generated by the inertial force hydraulic transformer, it is detrimental to power generation. The liquid in the pipeline can be water or a high-density liquid; using a high-density, highly fluid liquid can improve power generation efficiency. Injecting foam material into the gap between the float and the inertial hydraulic differential power generation system isolates the inertial hydraulic differential power generation system from the marine environment, improving corrosion resistance and overall structural strength.

[0007] The inertial force hydraulic transformer consists of a shell, a liquid capsule, and an inertial force applying block. The shell is located outside the liquid capsule and the inertial force applying block, which can move up and down relative to the shell. The liquid capsule contains liquid and can contract and expand. Its outer surface is corrugated to make the contraction and expansion response more sensitive. The inertial force applying block has a certain mass and presses on the upper part of the liquid capsule, applying gravity and inertial force to the liquid capsule.

[0008] When the inertial force applying block is subjected to an upward inertial force, the pressure exerted by the block on the liquid capsule equals its weight minus the inertial force. In this case, the liquid pushes the block upward, doing work. When the inertial force applying block is subjected to a downward inertial force, the pressure exerted by the block equals its weight plus the inertial force. In this case, the block pushes the liquid downward, doing work. The periodic changes in pressure exerted by the inertial force applying block on the liquid capsule, and the periodic changes in liquid pressure caused by the liquid's own inertia, result in periodic changes in the liquid pressure inside the capsule. When the inertial force applying block is made of steel, its density is much greater than that of the liquid, saving space. When the inertial force applying block is made of the same liquid, it can be placed inside the liquid capsule and integrated. Increasing the weight of the inertial force applying block can improve power generation efficiency. Liquid injection ports can be pre-installed on the pipes or the liquid capsule for convenient liquid injection and maintenance.

[0009] The float contains a connecting plate that links the inertial hydraulic differential power generation system to the float. A counterweight at the bottom of the float adjusts the center of gravity of the wave energy inertial hydraulic differential power generation device, allowing it to automatically recover its normal posture after capsizing in severe sea conditions. The float has several inspection covers for assembling and maintaining the wave energy inertial hydraulic differential power generation device. The counterweight can be replaced with a battery. Inside the float is a submersible tank or water bag. In extremely rough sea conditions, seawater is pumped into the tank or bag, allowing the float to submerge and avoid the waves. Once the waves subside, the seawater is expelled from the tank or bag, and the float resurfaces to generate electricity.

[0010] The floating body in question is a ship, meaning that an inertial hydraulic differential power generation system is installed on the ship to generate electricity, which can also reduce the ship's rolling.

[0011] Batteries and propulsion systems are installed on the floating hull, which is used as an unmanned vessel with long endurance at sea.

[0012] Solar panels or small wind turbines are installed on the floating body to make power generation more stable.

[0013] Monitoring equipment, navigation lights, rescue equipment, or communication equipment are installed on the floating hull for unmanned maritime operations, navigation, maritime rescue duty, or maritime communication services.

[0014] Multiple wave energy inertial hydraulic differential power generation devices are connected in series or in parallel to form a wave power plant.

[0015] The floating body serves as the floating base for the offshore platform, which is to install an inertial hydraulic differential power generation system to generate electricity on the offshore platform.

[0016] The beneficial effects of the present invention through the above technical solution are: it adopts a new wave power generation method, has low manufacturing cost, high power generation efficiency, good wind and wave resistance, strong corrosion resistance, low operation and maintenance cost, low power generation cost, and can promote the commercial application of wave power generation. Attached Figure Description

[0017] To illustrate the present invention more clearly, the following description will be based on a schematic diagram of a wave energy inertial hydraulic differential power generation device. The accompanying drawings are merely embodiments of the present invention. Those skilled in the art can obtain other drawings based on the provided drawings without any creative effort.

[0018] Figure 1 Schematic diagram of a wave energy inertial hydraulic differential power generation device:

[0019] Float 1, Inspection cover 11;

[0020] Figure 2 A partial cross-sectional schematic diagram of a wave energy inertial hydraulic differential power generation device:

[0021] 1. Float; 2. Inertial hydraulic differential power generation system; 3. Connecting plate; 4. Counterweight;

[0022] Figure 3 Schematic diagram of an inertial hydraulic differential power generation system:

[0023] 2. Inertial hydraulic differential power generation system; 21. Inertial force hydraulic transformer; 22. Pipeline generator; 23. Pipeline; 24. Check valve;

[0024] Figure 4 Schematic diagram of a cross-section of an inertial force hydraulic transformer:

[0025] 21. Inertial force hydraulic transformer, 211. Shell, 212. Liquid capsule, 213. Inertial force pressure block. Implementation

[0026] Example 1, as Figure 1 , Figure 2 and Figure 3The wave energy inertial hydraulic differential power generation device of the present invention includes: a float 1 and an inertial hydraulic differential power generation system 2. The float 1 floats on the sea surface and oscillates around a horizontal or vertical axis with the waves. When the float 1 oscillates, its two ends undergo opposite accelerations in the vertical direction, and the accelerations of the two ends in the vertical direction are opposite. The inertial hydraulic differential power generation system 2 consists of at least two inertial force hydraulic transformers 21, a pipeline generator 22, a pipeline 23, and a check valve 24. The inertial force hydraulic transformers 21 are located at both ends of the float 1. When subjected to inertial force, they pressurize or depressurize the liquid. When two inertial force hydraulic transformers 21 are subjected to inertial force, the liquid pressure is increased or decreased. When one of the inertial force hydraulic transformers 21 pressurizes while the other depressurizes, a pressure difference is generated in the liquid between the two inertial force hydraulic transformers 21, which drives the liquid to flow in the pipe 23. The pipe generator 22 is installed on the pipe 23. When the liquid flows in the pipe 23, it drives the impeller in the pipe generator 22 to rotate and generate electricity. The pipe 23 connects the inertial force hydraulic transformer 21, the pipe generator 22 and the check valve 24 into a liquid circuit, and the liquid can circulate in a directional manner within the pipe 23 circuit. The check valve 24 is used to adjust the initial flow direction of the liquid in the pipe 23, so that the liquid circulates in a fixed direction.

[0027] Example 2, as Figure 3 The wave energy inertial hydraulic differential power generation device of the present invention, after the liquid flow direction is normal, can maintain a fixed flow direction in the pipe 23 by relying on the inertia of the liquid itself, and the check valve 24 can stop working or be cancelled; the check valve 24 can be integrated into the pipe generator 22, that is, the pipe generator 22 can only rotate in one direction and cannot be reversed.

[0028] When the liquid in the inertial hydraulic differential power generation system 2 rises and falls with the waves, it is affected by the change in its own gravitational potential energy, causing a liquid pressure difference. However, compared with the liquid pressure difference generated by the inertial force hydraulic transformer 21, the liquid pressure difference caused by the change in liquid gravitational potential energy is much smaller. When the liquid pressure difference caused by the change in liquid gravitational potential energy is in the same direction as the liquid pressure difference generated by the inertial force hydraulic transformer 21, it is beneficial for power generation; when the liquid pressure difference caused by the change in liquid gravitational potential energy is in the opposite direction to the liquid pressure difference generated by the inertial force hydraulic transformer 21, it is not beneficial for power generation. The liquid in the pipe 23 can be water or a high-density liquid; when a high-density, high-flow-rate liquid is used, the power generation efficiency can be improved. Foam material is injected into the gap between the float 1 and the inertial hydraulic differential power generation system 2 to isolate the inertial hydraulic differential power generation system 2 from the marine environment, improving corrosion resistance and overall structural strength.

[0029] Example 3, as Figure 4The wave energy inertial hydraulic differential power generation device of the present invention is shown. The inertial force hydraulic transformer 21 is composed of a shell 211, a liquid capsule 212, and an inertial force applying block 213. The shell 211 is outside the liquid capsule 212 and the inertial force applying block 213, and the liquid capsule 212 and the inertial force applying block 213 can move up and down relative to the shell 211. The liquid capsule 212 contains liquid and can contract and expand. The outer surface is corrugated to make the contraction and expansion response more sensitive. The inertial force applying block 213 has a certain mass and presses on the upper part of the liquid capsule 212, applying gravity and inertial force to the liquid capsule 212.

[0030] When the inertial force applying block 213 is subjected to an upward inertial force, the pressure exerted by the inertial force applying block 213 on the liquid capsule 212 is equal to its weight minus the inertial force. At this time, the liquid propels the inertial force applying block 213 upward, doing work. When the inertial force applying block 213 is subjected to a downward inertial force, the pressure exerted by the inertial force applying block 213 on the liquid capsule 212 is equal to its weight plus the inertial force. At this time, the inertial force applying block 213 propels the liquid downward, doing work. The periodic change in pressure exerted by the inertial force applying block 213 on the liquid capsule 212, and the periodic change in liquid pressure caused by the liquid's own inertia, cause periodic changes in the liquid pressure inside the liquid capsule 212. When the inertial force applying block 213 is made of steel, its density is much greater than the density of the liquid, saving space. When the inertial force applying block 213 is made of the same liquid, it can be placed inside the liquid capsule 212 and integrated together. Increasing the weight of the inertial force applying block 213 can improve power generation efficiency. Liquid injection ports can be reserved on pipe 23 or liquid capsule 212 to facilitate liquid injection and maintenance.

[0031] Example 4, as Figure 2 The wave energy inertial hydraulic differential power generation device of the present invention includes a connecting plate 3 inside the float 1, which connects the inertial hydraulic differential power generation system 2 and the float 1 together. A counterweight 4 is located at the bottom of the float 1 to adjust the center of gravity of the wave energy inertial hydraulic differential power generation device, allowing it to automatically recover its normal posture after capsizing in severe sea conditions. The float 1 has several inspection covers 11 for assembling and maintaining the wave energy inertial hydraulic differential power generation device. The counterweight 4 can be replaced by a battery. Inside the float 1 is a submersible tank or water bag. In extremely severe sea conditions, seawater is injected into the tank or water bag, allowing the device to submerge and avoid the waves. When the waves subside, the seawater is expelled from the tank or water bag, allowing the device to surface and generate electricity.

[0032] Example 5, as Figure 1 and Figure 2 The wave energy inertial hydraulic differential power generation device of the present invention is shown in the figure. The floating body 1 is a ship, that is, the inertial hydraulic differential power generation system 2 is installed on the ship to generate electricity, which can also reduce the swaying of the ship.

[0033] Example 6, as Figure 1 and Figure 2 The wave energy inertial hydraulic differential power generation device of the present invention is shown. A battery and a propulsion system are installed on the floating body 1, which is used as an unmanned vessel with long-endurance at sea.

[0034] Example 7, as Figure 1 The wave energy inertial hydraulic differential power generation device of the present invention is shown in the figure. A solar panel or a small wind turbine is installed on the float 1 to make the power generation more stable.

[0035] Example 8, as Figure 1 The wave energy inertial hydraulic differential power generation device of the present invention is shown. The floating body 1 is equipped with monitoring equipment, navigation lights, rescue equipment or communication equipment for unmanned operation at sea, navigation, maritime rescue duty or maritime communication services.

[0036] Example 9, as Figure 1 The wave energy inertial hydraulic differential power generation device shown in this invention can be connected in series or in parallel to form a wave power plant.

[0037] Example 10, as Figure 1 The wave energy inertial hydraulic differential power generation device of the present invention is shown in the figure. The float 1 serves as the floating base of the offshore platform, that is, the inertial hydraulic differential power generation system 2 is installed on the offshore platform to generate electricity.

[0038] The beneficial effects of the present invention through the above technical solution are: it adopts a new wave power generation method, has low manufacturing cost, high power generation efficiency, good wind and wave resistance, strong corrosion resistance, low operation and maintenance cost, low power generation cost, and can promote the commercial application of wave power generation.

[0039] Any person skilled in the art can make changes or modifications to the above-disclosed technical content without departing from the technical solution of this invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of this invention without departing from the technical solution of this invention shall still fall within the scope of the technical solution of this invention.

Claims

1. A wave energy inertial hydraulic differential power generation device, characterized in that, include: A floating body (1) and an inertial hydraulic differential power generation system (2) are used. The floating body (1) floats on the sea surface and sways around the horizontal or vertical axis with the waves. When the floating body (1) sways, its two ends move in opposite directions in the vertical direction, and the acceleration directions of the two ends in the vertical direction are opposite. The inertial hydraulic differential power generation system (2) consists of at least two inertial force hydraulic transformers (21), a pipeline generator (22), a pipeline (23), and a check valve (24). The inertial force hydraulic transformers (21) are located at both ends of the floating body (1). When subjected to inertial force, they pressurize or depressurize the liquid. When one of the two inertial force hydraulic transformers (21) pressurizes and the other depressurizes, the liquid between the two inertial force hydraulic transformers (21) is depressurized. The liquid generates a pressure difference, which drives the liquid to flow in the pipe (23); the pipe generator (22) is installed on the pipe (23), and when the liquid flows in the pipe (23), it drives the impeller in the pipe generator (22) to rotate and generate electricity; the pipe (23) connects the inertial force hydraulic transformer (21), the pipe generator (22) and the check valve (24) into a liquid circuit, and the liquid circulates in a directional manner inside the pipe (23) circuit; the check valve (24) is used to adjust the initial flow direction of the liquid in the pipe (23) so that the liquid circulates in a fixed direction; after the liquid flow direction is normal, it relies on the inertia of the liquid itself to maintain a fixed flow direction in the pipe (23), and the check valve (24) stops working or is canceled.

2. The wave energy inertial hydraulic differential power generation device according to claim 1, characterized in that, The floating body (1) mentioned is a ship, that is, an inertial hydraulic differential power generation system (2) is installed on the ship to generate electricity.

3. The wave energy inertial hydraulic differential power generation device according to claim 1, characterized in that, Batteries and propulsion systems are installed on the floating body (1) for use as an unmanned vessel with long endurance at sea.

4. The wave energy inertial hydraulic differential power generation device according to claim 1, characterized in that, Solar panels or small wind turbines are installed on the floating body (1) to make power generation more stable.

5. The wave energy inertial hydraulic differential power generation device according to claim 1, characterized in that, Monitoring equipment, navigation lights, rescue equipment or communication equipment are installed on the floating body (1) for unmanned maritime duty, navigation, maritime rescue duty or maritime communication services.

6. The wave energy inertial hydraulic differential power generation device according to claim 1, characterized in that, Multiple wave energy inertial hydraulic differential power generation devices are connected in series or in parallel to form a wave power plant.

7. The wave energy inertial hydraulic differential power generation device according to claim 1, characterized in that, The floating body (1) serves as the floating base of the offshore platform, that is, the inertial hydraulic differential power generation system (2) is installed on the offshore platform to generate electricity.

Images