A ship energy storage system based on wave-slap type pneumatic turbine power generation and a ship

Abstract

The application provides a ship energy storage system based on wave beating type pneumatic turbine power generation, which comprises a pneumatic pipeline arranged through a ship body; a first end portion of the pneumatic pipeline is circumscribed by sea waves, and a second end portion of the pneumatic pipeline is in communication with external environment air; the sea waves reciprocally impact air in the pneumatic pipeline, and air flow is formed in the pneumatic pipeline; a turbine is arranged in the pneumatic pipeline, the turbine is driven to rotate by the air flow to convert air kinetic energy into mechanical energy; a gear box is engaged with the turbine through gear ratio change, and the mechanical energy is output after being increased; a generator is connected to an output end of the gear box, which is used for converting the mechanical energy output by the gear box into electric energy and outputting alternating current; a rectifying device is connected to an output end of the generator, which is used for converting the alternating current output by the generator into direct current; a storage battery is connected to the rectifying device, which is used for storing the electric energy output by the rectifying device. The system has the characteristics of reducing energy consumption and emission of a ship generator.

Description

Technical Field

[0001] This application relates to the field of ship design technology, and more specifically, to a ship energy storage system and a ship based on wave-driven aerodynamic turbine power generation. Background Technology

[0002] With the rapid development of social and economic construction and the increasing consumption of energy, energy conservation and emission reduction designs that meet environmental protection requirements are now receiving considerable attention. Therefore, the application of energy conservation and emission reduction technologies in ship design is also essential. As fossil fuels such as coal and oil become increasingly depleted, the development of renewable energy has become a research hotspot in many countries. The ocean is a vast energy reservoir, and wave energy carried by moving waves is an important renewable energy source. However, the application of energy conservation and emission reduction technologies in many aspects of ship design is not yet widespread; for example, there is no precedent for ship systems that utilize wave energy to generate electricity. Summary of the Invention

[0003] The purpose of this application is to provide a ship energy storage system and a ship based on wave-driven aerodynamic turbine power generation. The system uses the airflow caused by wave fluctuations to drive the turbine, which in turn drives the generator rotor to generate electricity. The generated electricity is stored in the ship's batteries. This system enables the ship to generate electricity and store it in the batteries by utilizing wave fluctuations while the ship is docked. It has the characteristics of reducing the energy consumption and emissions of conventional marine generators and achieving environmental protection.

[0004] Firstly, a ship energy storage system based on wave-driven aerodynamic turbine power generation is provided, comprising:

[0005] The pneumatic duct has an outlet at its first end that is positioned below the waterline of the ship and connected to the ocean waves, while the second end of the pneumatic duct is connected to the external ambient air. Ocean waves enter the pneumatic duct through the outlet at the first end, and the waves repeatedly impact the air inside the pneumatic duct, creating an airflow within the pneumatic duct.

[0006] A turbine is arranged inside the pneumatic duct, and the arrangement height of the turbine is always higher than the water level in the pneumatic duct. The turbine is driven to rotate by the airflow to convert the kinetic energy of the air into mechanical energy.

[0007] A gearbox meshes with the turbine via a gear ratio, the gearbox increases the turbine's rotational speed by a preset multiple, and outputs the increased mechanical energy;

[0008] A generator, connected to the output end of the gearbox, is used to convert the mechanical energy output by the gearbox into electrical energy and output alternating current.

[0009] A rectifier, connected to the output terminal of the generator, is used to convert the alternating current (AC) output by the generator into direct current (DC).

[0010] A storage battery, connected to the rectifier, is used to store the electrical energy of the DC power output by the rectifier.

[0011] In one embodiment, the pneumatic pipeline includes a side connector, a V-shaped pipe, and a deck connector. One end of the side connector is connected to the hull shell and extends beyond the hull shell by a predetermined length, while the other end is connected to the deck connector via the V-shaped pipe. The side connector is arranged in an upwardly inclined manner, and the side connector and the V-shaped pipe are connected by a straight pipe, which contains a ball valve.

[0012] In one embodiment, the system further includes a control unit. A float ball is provided inside the V-shaped tube, and a liquid level sensor is provided on the float ball. The control unit is communicatively connected to the liquid level sensor. The liquid level sensor acquires the liquid level height inside the V-shaped tube and sends the liquid level signal to the control unit. The control unit controls the opening and closing of the ball valve according to the liquid level signal.

[0013] In one embodiment, the system further includes four reinforcing supports fixed to the first end of the pneumatic pipe. One end of each reinforcing support is connected to the pneumatic pipe, and the other end is fixedly supported on the longitudinal skeleton of the hull. The four reinforcing supports are arranged in an X-shape around the circumference of the pneumatic pipe.

[0014] In one embodiment, the system further includes a sensing unit, a braking unit, and a cooling unit. The sensing unit is used to sense the operating temperature rise of the gearbox and generator, the output voltage of the generator, the output speed of the turbine and gearbox, and the current and voltage of the battery. The cooling unit is disposed on the gearbox and generator for cooling the gearbox and generator. The braking unit is disposed at the input and output ends of the gearbox for braking the gearbox. The control unit is also communicatively connected to the sensing unit, braking unit, and cooling unit for adjusting the operating status of the turbine, braking unit, and cooling unit based on signals from the sensing unit.

[0015] In one embodiment, an adjustable sealing plate is also included, the sealing plate being disposed on the outlet of the first end, and the flow rate at the outlet of the first end is adjusted by adjusting the opening.

[0016] In one embodiment, the sealing plate is configured as two irregular triangular plates, which are symmetrically arranged. The two right-angled sides of the two irregular triangular plates are joined together, and the other two right-angled sides are arranged in a straight line. The hypotenuses of the two irregular triangular plates are arc-shaped sides, which are arranged below the right-angled sides of the straight line. The radius of the arc of the arc-shaped sides decreases from top to bottom. The irregular triangular plates can be rotated upwards by a preset angle around the right-angle vertex.

[0017] In one embodiment, the turbine includes blades and a shaft, the blades being driven by an airflow to rotate the shaft, and each blade being configured in a symmetrical shape.

[0018] In one implementation, the generator is an asynchronous generator.

[0019] According to a second aspect of this application, a ship is also provided, including a ship energy storage system based on wave-driven aerodynamic turbine power generation as described in any embodiment of the first aspect.

[0020] The beneficial effects of this application are:

[0021] 1. This application proposes a novel energy-saving and environmentally friendly ship design scheme based on wave-driven turbine power generation and energy storage. Based on the principle of pneumatic turbine drive, the turbine is driven by pneumatics, and the turbine drives the generator rotor to generate electricity. The generated electricity is stored in the ship's battery. The ship can generate electricity and store battery energy by utilizing the wave fluctuations while docked.

[0022] 2. This system integrates the principles of wind power generation, aerodynamic turbine machinery, and overall ship design. By utilizing wave-beating conditions, it avoids the need for ship batteries to consume fuel through generators for charging, thereby reducing fuel consumption, lowering oil fume emissions, and achieving energy-saving and environmentally friendly power generation and storage. This reduces the energy consumption and emissions of conventional marine generators, thus achieving environmental protection. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram illustrating the arrangement of a pneumatic pipe and a turbine according to an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of a pneumatic pipeline according to an embodiment of this application;

[0026] Figure 3 This is a schematic diagram illustrating the layout of a reinforcing bracket according to an embodiment of this application;

[0027] Figure 4 This is a schematic diagram illustrating the structure of a sealing plate when closed according to an embodiment of this application;

[0028] Figure 5 This is a schematic diagram illustrating the structure of a sealing plate when it is opened, according to an embodiment of this application.

[0029] 100. Hull; 110. Deck; 120. Side; 121. Hull shell; 122. Longitudinal reinforcement; 130. Air; 200. Pneumatic pipe; 210. First end; 211. Sealing plate; 2111. Irregular triangular plate; 220. Second end; 230. Side pipe; 240. V-tube; 241. Buoy; 250. Straight pipe; 251. Ball valve; 260. Reinforcing bracket; 300. Turbine; 400. Gearbox; 500. Generator; 600. Rectifier; 700. Battery. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0032] In a first aspect, this application provides a ship energy storage system based on wave-driven pneumatic turbine power generation, including a pneumatic pipe 200, a turbine 300, a gearbox 400, a generator 500, a rectifier 600, and a battery 700.

[0033] Figure 1 This is a schematic diagram illustrating the arrangement of a pneumatic conduit and turbine according to an embodiment of this application. See also... Figure 1A pneumatic duct 200 is installed vertically through the hull 100. The first end 210 of the pneumatic duct 200 is located on the side of the ship's side 120, exposed to waves, and its outlet is below the waterline to ensure that waves always submerge the outlet of the first end 210. The second end 220 of the pneumatic duct 200 is located above the deck 110, communicating with the external ambient air. The first end 210 is equipped with an adjustable sealing plate 211. Waves enter the pneumatic duct 200 through the sealing plate 211, and the waves reciprocate, impacting the air 130 inside the duct, creating an airflow. The size of the airflow is adjusted by changing the opening of the sealing plate 211. During the ship's operation, the sealing plate 211 is closed, preventing waves from entering the pneumatic pipe 200 and stopping the system from generating electricity. The closure of the sealing plate 211 ensures a smooth hull line with less resistance. When the ship is moored, the sealing plate 211 can be opened to start generating electricity and storing energy.

[0034] The turbine 300 is installed inside the pneumatic pipe 200. The installation height of the turbine 300 is always higher than the water level inside the pneumatic pipe 200. The turbine 300 is driven to rotate by the airflow to convert the kinetic energy of the air into mechanical energy.

[0035] The gearbox 400 meshes with the turbine 300 via a gear ratio change. The gearbox 400 increases the speed of the turbine 300 by a preset multiple to ensure the effective rotation of the rotor in the generator 500 and outputs the increased mechanical energy.

[0036] The generator 500 is connected to the output end of the gearbox 400 to convert the mechanical energy output by the gearbox 400 into electrical energy and output alternating current; thus forming a pneumatic turbine generator.

[0037] The rectifier 600 is connected to the output terminal of the generator 500 to convert the AC power output by the generator 500 into DC power. It generates electricity by driving a pneumatic turbine. Even if the turbine speed is unstable, it can be rectified into DC power for battery storage. The subsequent AC power for the ship can be converted into DC power by the battery.

[0038] The battery 700 is connected to the rectifier 600 and is used to store the electrical energy of the DC power output by the rectifier 600.

[0039] In the above implementation process, when the ship is docked, the sealing plate of the hull is opened. The impact of the waves compresses the air in the pneumatic pipe, causing the air inside the pneumatic pipe to be exhausted to the outlet at the second end. When the waves recede, they pull the airflow in the opposite direction from the outlet at the first end of the pneumatic pipe, thus creating a continuous back-and-forth airflow. The airflow acts on the turbine, causing the turbine to rotate and drive the generator to generate electricity. That is, when the ship is docked, the wave surge propels the air back and forth in the pneumatic pipe, driving the turbine to rotate. After being accelerated by the gearbox, the air is transmitted to the generator, where it is converted into electricity through an excitation magnetic field. The generated electricity is then stored in the ship's batteries. This design represents a new design concept in ship design, integrating the mechanical principles of pneumatic turbines with the overall ship design. In the wave-swept state when the ship is docked, it avoids the need for the ship's batteries to consume fuel to charge through the generator, thus reducing fuel consumption, lowering oil fume emissions, and achieving energy-saving and environmentally friendly power generation and storage.

[0040] Figure 2 This is a schematic diagram of a pneumatic pipe structure according to an embodiment of this application. See also... Figure 2 The pneumatic piping 200 includes a side connector 230, a V-shaped pipe 240, and a deck connector. Figure 2 (Not shown in the image), one end of the side connector 230 is connected to the hull shell 121 and extends beyond the hull shell 121 by a predetermined length. The side connector 230 is welded to the hull shell 121, and the free end of the side connector 230 (i.e., the end extending beyond the hull shell) generally extends beyond the hull shell 121 by no more than 15mm. The other end is connected to the deck connector via a V-shaped pipe 240. The side connector 230 is arranged in an upward-sloping manner to effectively transmit wave loads. The side connector 230 and the V-shaped pipe 240 are connected by a straight pipe 250, and a ball valve 251 is installed inside the straight pipe 250. That is, the ball valve 251 is installed in the middle of the straight pipe 250, the left end is connected to the side connector 230, and the right end is connected to the V-shaped pipe 240. Under normal circumstances, the ball valve 251 is open to facilitate the entry of seawater from outside the hull, compress air, and provide kinetic energy. The connection method of side pipe 230, V-shaped pipe 240 and straight pipe 250 can facilitate the impact and retreat of waves in the pneumatic pipeline, while protecting the air flow in the pneumatic pipeline and ensuring the stable operation of the entire system.

[0041] In one embodiment, a control unit is also included. A float 241 is provided inside the V-tube 240, and a liquid level sensor is mounted on the float 241. The control unit is communicatively connected to the liquid level sensor. The liquid level sensor acquires the liquid level height inside the V-tube 240 and sends the liquid level signal to the control unit. The control unit controls the opening and closing of the ball valve 251 based on the liquid level signal. That is, when the liquid level inside the V-tube 240 drops to its lowest level, the sensor on the float 241 can send a signal, and the control unit controls the ball valve 251 to close, preventing gas from escaping from the right end of the V-tube 240.

[0042] In one embodiment, four reinforcing supports 260 are also included, see [link to relevant documentation]. Figure 2 and Figure 3 Four reinforcing brackets 260 are fixed to the first end of the pneumatic pipe 200. One end of each reinforcing bracket 260 is connected to the pneumatic pipe 200, and the other end is fixedly supported on the longitudinal skeleton 122 of the hull 100. The four reinforcing brackets 260 are distributed in an X-shape around the circumference of the side connector 230. The side connector 230 in the pneumatic pipe 200 is supported and fixed to the longitudinal skeleton 122 of the hull by the four reinforcing brackets 260. The four reinforcing brackets 260 adopt an "X" shape, which provides support in all directions.

[0043] In one embodiment, the system further includes a sensing unit, a braking unit, and a cooling unit. The sensing unit detects the operating temperature rise of the gearbox 400 and generator 500, the output voltage of the generator 500, the output speed of the turbine 300 and gearbox 400, and the current and voltage of the battery 700. The cooling unit is located on the gearbox 400 and generator 500 to cool them down, preventing excessive temperature rise after prolonged operation. The braking unit is located at the input and output ends of the gearbox 400 to brake the gearbox, employing methods such as shaft-clamping brakes to prevent abnormal conditions during shaft operation. The control unit is also communicatively connected to the sensing unit, braking unit, and cooling unit to adjust the operating status of the turbine 300, braking unit, and cooling unit based on signals from the sensing unit. This includes automatically adjusting the opening degree of the sealing plate 211 to regulate input and output quantities, ensuring safe and effective system operation.

[0044] In one implementation scheme, see Figure 4 and Figure 5 The sealing plate 211 includes two irregular triangular plates 2111, which are symmetrically arranged with their right-angled sides joined together. The other two right-angled sides are arranged in a straight line. The hypotenuses of the two irregular triangular plates 2111 are curved sides, located below the straight sides of the straight lines. The radius of the curved sides decreases from top to bottom. The irregular triangular plates 2111 can rotate upwards by a preset angle around the right-angle vertex. The direction of rotation of the irregular triangular plates is as follows: Figure 5As indicated by the middle arrow. When the irregular triangular plate 2111 conforms to the hull lines and the right-angled sides of the two irregular triangular plates are joined together, it is in the closed state, consistent with the hull design, ensuring a smooth hull outer plate line with minimal resistance. After the two irregular triangular plates are rotated upwards by a preset angle, they are in the open state. This allows waves to enter the pneumatic duct, activating power generation and energy storage. Furthermore, even when the irregular triangular plates are open, the upper structure's span remains greater than the lower structure, reducing resistance and increasing the service life of the sealing plate.

[0045] In one embodiment, the turbine 300 includes blades and a shaft. The blades are driven by the airflow to rotate the shaft, converting aerodynamic kinetic energy into mechanical energy, thus creating a rotating shaft. Each blade is designed with a symmetrical shape. The turbine blades can be symmetrical to ensure that the turbine always rotates in one direction, resulting in more stable rotation. The rectifier battery energy storage design in this application can also use asymmetrical blades.

[0046] In one embodiment, generator 500 is an asynchronous generator. The asynchronous generator converts mechanical energy into electrical energy. The rotor of generator 500 is connected to the output terminal of gearbox 400, and the rotation of the rotor converts the electrical energy through an excitation magnetic field, which is then output by the stator.

[0047] Secondly, this application also provides a vessel including a ship energy storage system based on wave-driven aerodynamic turbine power generation as described in any embodiment of the first aspect.

[0048] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A ship energy storage system based on wave-driven aerodynamic turbine power generation, characterized in that, include: The pneumatic duct has an outlet at its first end that is positioned below the waterline of the ship and connected to the ocean waves, while the second end of the pneumatic duct is connected to the external ambient air. Ocean waves enter the pneumatic duct through the outlet at the first end, and the waves repeatedly impact the air inside the pneumatic duct, creating an airflow within the pneumatic duct. A turbine is arranged inside the pneumatic duct, and the arrangement height of the turbine is always higher than the water level in the pneumatic duct. The turbine is driven to rotate by the airflow to convert the kinetic energy of the air into mechanical energy. A gearbox meshes with the turbine via a gear ratio, the gearbox increases the turbine's rotational speed by a preset multiple, and outputs the increased mechanical energy; A generator, connected to the output end of the gearbox, is used to convert the mechanical energy output by the gearbox into electrical energy and output alternating current. A rectifier, connected to the output terminal of the generator, is used to convert the alternating current (AC) output by the generator into direct current (DC). A storage battery, connected to the rectifier, is used to store the electrical energy of the DC power output by the rectifier. The pneumatic pipeline includes a side connector, a V-shaped tube, and a deck connector. One end of the side connector is connected to the hull shell and extends beyond the hull shell by a predetermined length. The other end is connected to the deck connector through the V-shaped tube. The side connector is arranged in an upward inclined manner. The side connector and the V-shaped tube are connected by a straight tube, and a ball valve is installed inside the straight tube. It also includes a control unit. A float ball is provided inside the V-shaped tube, and a liquid level sensor is provided on the float ball. The control unit is communicatively connected to the liquid level sensor. The liquid level sensor obtains the liquid level height in the V-shaped tube and sends the liquid level signal to the control unit. The control unit controls the opening and closing of the ball valve according to the liquid level signal.

2. The ship energy storage system based on wave-driven aerodynamic turbine power generation according to claim 1, characterized in that, It also includes four reinforcing supports, which are fixed to the first end of the pneumatic pipe. One end of each reinforcing support is connected to the pneumatic pipe, and the other end is fixedly supported on the longitudinal skeleton of the hull. The four reinforcing supports are arranged in an X-shape around the circumference of the pneumatic pipe.

3. The ship energy storage system based on wave-driven aerodynamic turbine power generation according to claim 1, characterized in that, It also includes a sensing unit, a braking unit, and a cooling unit. The sensing unit is used to sense the operating temperature rise of the gearbox and generator, the output voltage of the generator, the output speed of the turbine and gearbox, and the current and voltage of the battery. The cooling unit is arranged on the gearbox and generator to cool them down. The braking unit is arranged at the input and output ends of the gearbox to brake it. The control unit is also communicatively connected to the sensing unit, braking unit, and cooling unit to adjust the operating status of the turbine, braking unit, and cooling unit according to the signals from the sensing unit.

4. The ship energy storage system based on wave-driven aerodynamic turbine power generation according to claim 1, characterized in that, It also includes an adjustable sealing plate, which is disposed on the outlet of the first end, and the flow rate at the outlet of the first end is adjusted by adjusting the opening.

5. The ship energy storage system based on wave-driven aerodynamic turbine power generation according to claim 4, characterized in that, The sealing plate is composed of two irregular triangular plates, which are symmetrically arranged. The two right-angled sides of the two irregular triangular plates are joined together, and the other two right-angled sides are arranged in a straight line. The hypotenuses of the two irregular triangular plates are arc-shaped sides, which are arranged below the right-angled sides of the straight line. The radius of the arc of the arc-shaped sides decreases from top to bottom. The irregular triangular plates can be rotated upwards by a preset angle around the right-angle vertex.

6. The ship energy storage system based on wave-driven aerodynamic turbine power generation according to claim 1, characterized in that, The turbine includes blades and a shaft. The blades are driven by the airflow to rotate the shaft, and each blade is designed to be symmetrical.

7. The ship energy storage system based on wave-driven aerodynamic turbine power generation according to claim 1, characterized in that, The generator is an asynchronous generator.

8. A ship, characterized in that, Including the ship energy storage system based on wave-driven aerodynamic turbine power generation as described in any one of claims 1 to 7.

Images