A float and a catamaran type wave energy power generation device including the float

Abstract

The present invention discloses a float and a catamaran type wave energy power generation device including the float. The float includes a float body, a regulating cabin arranged in the float body, the regulating cabin includes a water inlet and an air inlet, and the water inlet is connected to a water pumping / pumping device. The catamaran type wave energy power generation device includes a float, a hull hinged to the float through a first hinge assembly, a permanent magnet generator hinged to the float and the hull, and a battery and a load controller installed on the hull, the battery is respectively connected to the permanent magnet generator and the load controller, and the rotor of the permanent magnet generator is hinged to the hull through a second hinge assembly. The wet area and center of gravity of the float of the present invention are adjustable. For the catamaran type wave energy power generation device including the float, the wet area of ​​the float, the position of the center of gravity of the float, and the resonance frequency can be adjusted according to different working locations and different wave conditions, and the device has the characteristics of high wave energy capture capability, strong maneuverability, strong adaptability to different sea areas and wave conditions, and strong self-power supply capability.

Description

Technical Field

[0001] The present invention relates to the field of new energy technology, and in particular to a float and a catamaran type wave energy power generation device comprising the float. Background Art

[0002] As we all know, with the implementation of the national marine strategy, the demand for offshore electricity is increasing. At the same time, the environmental problems caused by the frequent use of fossil energy are becoming more and more serious, which makes the development of clean new energy imminent. Ocean wave energy, as a green renewable resource, has the advantages of large reserves, wide distribution, and high energy flow density. It can effectively alleviate the energy shortage situation worldwide, improve environmental problems, and provide clean and lasting power for ocean observation and development.

[0003] At present, permanent magnet power generation technology is becoming more and more perfect, and has been successfully applied to mainstream wave power generation devices in China, Europe and the United States. For example, patent number CN103264765A discloses a wave power generation technology for catamarans, in which the power generation device is symmetrically distributed at the tail of the two hulls, and the generator and the bearing frame are fixed to the hull by bolts. The spherical float is connected to the swing rod to form a floating body mechanism, and the spherical float floats on the water surface to collect wave energy; the gears and gears form a gear mechanism, and there is an internal ratchet on the gear to ensure the unidirectional operation of the generator. The electric energy generated by the generator can be stored in the battery to realize the conversion of wave energy and electric energy.

[0004] However, the existing catamaran wave energy device based on oscillating float power generation technology cannot adjust the wetted area of ​​the float, and cannot self-regulate according to different working sea areas and wave conditions, which to a certain extent reduces the scope of its applicable sea areas and the width of the wave spectrum. Summary of the invention

[0005] The object of the present invention is to provide a float and a catamaran type wave energy power generation device comprising the float, wherein the wet area and the center of gravity position of the float can be adjusted according to different working sea areas and wave conditions, and the wave-to-electricity conversion efficiency of the catamaran type wave energy power generation device can be effectively improved.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] On the one hand, a float is provided, comprising a float body, a regulating chamber arranged in the float body, and a water pumping device, wherein the regulating chamber has a water inlet and an air inlet, and the water inlet is connected to the water pumping device.

[0008] As a preferred technical solution of the float, the float body is provided with a groove with an opening facing upward and a cover body for sealing the opening, and the water inlet and the air inlet are located on the cover body.

[0009] As a preferred technical solution of the float, there are a plurality of regulating chambers, and the plurality of regulating chambers are spaced apart from each other in the float body.

[0010] On the other hand, a catamaran wave energy power generation device is provided, comprising the float, a hull hinged to one side of the float through a first hinge assembly, a permanent magnet generator installed on the float and the hull, and a battery and a load controller installed on the hull, wherein the battery is respectively connected to the permanent magnet generator and the load controller, and the rotor of the permanent magnet generator is hinged to the hull through a second hinge assembly.

[0011] As a preferred solution of the catamaran type wave energy power generation device, the first hinge assembly also includes two first arc-shaped connecting parts, two second arc-shaped connecting parts and a hinge axis, the two first arc-shaped connecting parts are arranged at intervals on the side of the hull close to the float, the two second arc-shaped connecting parts are arranged at intervals on the side of the float close to the hull, the two second arc-shaped connecting parts are respectively arranged adjacent to one of the first arc-shaped connecting parts, the first arc-shaped connecting part and the second arc-shaped connecting part partially intersect, and the hinge axis passes through the hinge port on the intersecting part to connect the hull and the float.

[0012] As a preferred solution of the catamaran type wave energy power generation device, the two first arc-shaped connecting parts are respectively adjacent to two sides of the hull, and the two second arc-shaped connecting parts are respectively adjacent to two sides of the float.

[0013] As a preferred solution of the catamaran type wave energy power generation device, the second articulated assembly includes an articulated bracket and an articulated key located above the hull and adjacent to the float, the articulated bracket includes two vertical poles fixed at intervals above the hull and a connecting shaft fixedly connected to the upper ends of the vertical poles, the rotor is connected to the connecting shaft via the articulated key, and the float can drive the rotor to rotate around the connecting shaft.

[0014] As a preferred solution of the catamaran type wave energy power generation device, the hinge key includes a pivot ring and a screw fixedly connected to the outer periphery of the pivot ring, the axial direction of the pivot ring is perpendicular to the length direction of the screw, the pivot ring is sleeved on the connecting shaft, and the screw is threadedly connected to the screw hole at the end of the rotor.

[0015] As a preferred solution of the catamaran type wave energy power generation device, a mounting base is provided on the float, and the stator of the permanent magnet generator is fixed on the mounting base.

[0016] Beneficial effects of the present invention: The present invention adjusts the weight of the float by pumping different volumes of seawater into or out of the regulating cabin of the float, thereby changing the wet area and center of gravity of the float; when the water pump pumps out the seawater in the regulating cabin, the gas simultaneously flows into the regulating cabin through the air port, and when the seawater in the regulating cabin is emptied, the weight of the float is the lightest. When the float of the present invention is used as an energy-collecting float of a wave energy power generation device, the weight, wet area and center of gravity of the float can be adjusted according to different sea areas and wave conditions, so that the wave energy device can achieve the best power generation effect under the wave conditions. After the regulating cabin is emptied, the catamaran-type wave energy power generation device can sail quickly on the sea surface as needed. Compared with the prior art, the catamaran-type wave energy power generation device with a float with adjustable wet area and center of gravity position of the present invention has the characteristics of high maneuverability, high wave energy capture efficiency, and can adapt to different sea areas and wave conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural schematic diagram of a catamaran type wave energy power generation device according to an embodiment of the present invention.

[0019] Figure 2 It is a side view of a catamaran type wave energy power generation device according to an embodiment of the present invention.

[0020] In the figure:

[0021] 10. Float; 11. Float body; 12. Adjustment cabin; 20. First hinge assembly; 21. First arc-shaped connecting portion; 22. Second arc-shaped connecting portion; 23. Hinge shaft; 30. Hull; 40. Permanent magnet generator; 41. Rotor; 42. Stator; 50. Second hinge assembly; 51. Vertical pole; 52. Connecting shaft. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0023] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The shapes and structures of the float and the hull of this embodiment are not limited to the drawings, and the float 10 and the hull 30 in the drawings are only for illustration.

[0027] like Figure 1 and Figure 2 As shown, the float 10 in this embodiment includes a float body 11, a regulating cabin 12 disposed in the float body 11, and a water pumping device, wherein the regulating cabin 12 has a water inlet and an air inlet, and the water inlet is connected to the water pumping device. The water pumping device, the water inlet, and the air inlet are not shown in the figure.

[0028] Among them, the water pumping / pumping device can be, for example, a bidirectional rotating water pump disclosed in CN207701389U, which can realize bidirectional water pumping. Through the water pump, different volumes of seawater can be pumped into the regulating cabin 12 through the water inlet to adjust the weight of the float 10, thereby changing the wet area and center of gravity of the float 10; when the water pump extracts the seawater in the regulating cabin 12, the gas flows into the regulating cabin 12 through the gas inlet. When the seawater in the regulating cabin 12 is emptied, the weight of the float 10 is the lightest, the wet area decreases, and the center of gravity rises. When the float 10 of this embodiment is used as an energy-generating float of the wave energy power generation device, the weight of the float 10 can be adjusted according to different wave conditions so that the float 10 can achieve the best motion response under the wave conditions, thereby obtaining the most electrical energy output. In addition, after the regulating cabin 12 is emptied, the catamaran-type wave energy power generation device can sail quickly on the sea surface as needed.

[0029] The float body 11 is provided with a groove with an opening facing upward and a cover for sealing the opening, and the water inlet and the air inlet are located on the cover. The float body 11 can be a solid structure or a hollow structure. When the float body 11 is a solid structure, a groove is directly dug above the float body 11, and then a cover with a water inlet and an air inlet is used to seal the water inlet; when the float body 11 is a hollow structure, a columnar wall is provided in the float body 11, and a groove is formed between the columnar wall and the float body 11, and the upper part of the float body 11 located in the groove is the cover.

[0030] Furthermore, there are a plurality of regulating chambers 12, and the plurality of regulating chambers 12 are arranged at intervals in the buoy body 11. The purpose of setting a plurality of regulating chambers 12 is to adjust the volume of seawater in the regulating chambers 12 at different positions according to the wave conditions, so that the movement under the wave conditions is optimal, thereby further obtaining the optimal energy absorption efficiency of wave energy. The number of regulating chambers 12 is not limited and is determined according to actual conditions.

[0031] like Figure 1 As shown, the float body 11 is provided with six regulating chambers 12 arranged at intervals. During operation, different volumes of seawater can be pumped into or out of the water inlet of the regulating chamber 12 by a water pumping / water pumping device to change the weight of the regulating chamber 12, thereby changing the wet area and center of gravity (center of mass) of the float 10 used for energy acquisition.

[0032] This embodiment also provides a catamaran type wave energy power generation device, comprising the float 10 described in the above embodiment, a hull 30 hinged to one side of the float 10 through a first hinge assembly 20, a permanent magnet generator 40 installed on the float 10 and the hull 30, and a battery and a load controller installed on the hull 30, wherein the battery is connected to the permanent magnet generator 40 and the load controller respectively, and the rotor 41 of the permanent magnet generator 40 is hinged to the hull 30 through a second hinge assembly 50. Among them, the battery and the load controller are not shown in the figure. After the hull 30 and the float 10 are hinged by the first hinge assembly 20, they can rotate simultaneously. When the hull 30 and the float 10 rotate, the rotor 41 of the permanent magnet generator 40 can be driven to rotate relative to the stator 42, thereby converting wave energy into electrical energy and storing it in the battery. The catamaran-type wave energy power generation device of the present embodiment is provided with an adjustable energy-harvesting float. Under the premise of ensuring high maneuverability, the wetted area and the center of gravity of the float 10 can be adjusted according to the wave conditions in different sea areas to obtain the best energy capture capability. The device can quickly sail to a new working sea area or sail back to the port to avoid extreme wave conditions, thus being suitable for operations in different sea areas. This effectively solves the problem of the traditional wave energy catamaran-type wave energy power generation device having insufficient adaptability to different working conditions due to the inability to adjust the wetted area and the center of gravity of the float 10.

[0033] Further, the first hinge assembly 20 further includes two first arc-shaped connecting parts 21, two second arc-shaped connecting parts 22 and a hinge shaft 23, the two first arc-shaped connecting parts 21 are arranged at intervals on the side of the hull 30 close to the float 10, the two second arc-shaped connecting parts 22 are arranged at intervals on the side of the float 10 close to the hull 30, the two second arc-shaped connecting parts 22 are respectively arranged adjacent to one of the first arc-shaped connecting parts 21, the first arc-shaped connecting parts 21 and the second arc-shaped connecting parts 22 are partially crossed, and the hinge shaft 23 passes through the hinge port on the crossing part to connect the hull 30 and the float 10. The hull 30 and the float 10 rotate around the hinge shaft 23 respectively under the action of the waves. Specifically, when the hull 30 rotates counterclockwise around the hinge shaft 23, the buoy 10 rotates clockwise around the hinge shaft 23, or when the hull 30 rotates clockwise around the hinge shaft 23, the buoy 10 rotates counterclockwise around the hinge shaft 23, and at the same time, the rotor 41 moves relative to the stator 42 along the length direction of the stator 42, thereby converting wave energy into electrical energy.

[0034] The first arc-shaped connecting portion 21 and the second arc-shaped connecting portion 22 have simple structures and are easy to install.

[0035] Furthermore, in order to prevent the hinge shaft 23 from being separated from the hinge port when the hull 30 and the float 10 rotate around the hinge shaft 23, a limit pin (not shown in the figure) is respectively provided at both ends of the hinge shaft 23 after the hinge shaft 23 passes through the two hinge ports.

[0036] Furthermore, the two first arc-shaped connecting parts 21 are respectively adjacent to the two sides of the hull 30 , and the two second arc-shaped connecting parts 22 are respectively adjacent to the two sides of the float 10 , thereby improving the connection stability between the hinge port and the hinge shaft 23 .

[0037] Further, the second hinge assembly 50 includes a hinge bracket and a hinge key located above the hull 30 and adjacent to the float 10, the hinge bracket includes two vertical poles 51 fixed above the hull 30 at intervals and a connecting shaft 52 fixedly connected to the upper end of the vertical pole 51, the rotor 41 is connected to the connecting shaft 52 through the hinge key, and the float 10 can drive the rotor 41 to rotate around the connecting shaft 52. In this embodiment, the connecting shaft 52 is arranged at a position of the hull 30 adjacent to the float 10, which can effectively shorten the transmission path and improve the motion response efficiency.

[0038] Specifically, the hinge key includes a pivot ring and a screw rod fixedly connected to the outer periphery of the pivot ring, the axial direction of the pivot ring is perpendicular to the length direction of the screw rod, the pivot ring is sleeved on the connecting shaft 52, and the screw rod is threadedly connected to the screw hole at the end of the rotor 41. In this embodiment, the hinge key is not shown in the figure.

[0039] In this embodiment, a mounting base 60 is provided on the float 10, and the stator 42 of the permanent magnet generator 40 is fixed on the mounting base 60. The mounting base 60 is fixed on the float 10 adjacent to the hull 30, so as to facilitate the fixing of the permanent magnet generator 40.

[0040] In another embodiment of the present invention, it is basically the same as the above embodiment (refer to the drawings in the above embodiment, and the same component names can be marked with the same reference numerals), and the difference lies in the structure of the first hinge assembly 20. Specifically, the first hinge assembly 20 includes two first connection ear plates, two second connection ear plates and a hinge shaft 23, the two first connection ear plates are arranged at intervals on the side of the hull 30 close to the float 10, the two second connection ear plates are arranged at intervals on the side of the float 10 close to the hull 30, and the two second connection ear plates are respectively adjacent to one of the first connection ear plates, the first connection ear plate is provided with a first through hole, the second connection ear plate is provided with a second through hole, the first connection ear plate and the second connection ear plate are partially overlapped so that the first through hole and the second through hole are completely overlapped, and the hinge shaft 23 is hinged to the first through hole and the second through hole respectively.

[0041] When the catamaran wave energy power generation device in this embodiment is generating electricity, the hull 30 and the float 10 rotate with the wave movement around the hinge shaft 23. When the hull 30 rotates counterclockwise around the hinge shaft 23, the float 10 rotates clockwise around the hinge shaft 23. At this time, the motion state of the stator 42 of the permanent magnet generator 40 is the same as that of the float 10, and the motion state of the rotor 41 rotates around the connecting shaft 52 under the influence of the hull 30. The motion of the hull 30 and the float 10 with the wave is converted into a relative motion between the rotor 41 and the stator 42 of the permanent magnet generator 40 along the length direction of the stator 42, thereby generating electricity.

[0042] Traditional catamaran-type wave energy power generation devices cannot move with the waves like catamaran valve-type devices, and are easily pulled away and crashed back into the sea surface in large wave conditions, which damages the stability and service life of the device. The catamaran-type wave energy power generation device of the present invention adopts a catamaran-hinged method. The wetted area and center of gravity of the float 10 in the catamaran are adjustable, and it has a higher capture width ratio and higher conversion efficiency compared with the traditional catamaran-hinged method. The catamaran-type wave energy power generation device of the present invention can supply water and electricity to off-grid islands and coastal areas, and has the characteristics of high maneuverability, high wave energy capture efficiency, and suitability for different sea areas and wave conditions.

[0043] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A catamaran type wave energy power generation device, characterized in that: The invention comprises a float, a hull hinged to the float through a first hinge assembly, a permanent magnet generator installed on the float and the hull, and a battery and a load controller installed on the hull, wherein the battery is connected to the permanent magnet generator and the load controller, and the rotor of the permanent magnet generator is hinged to the hull through a second hinge assembly. The float comprises a float body, a regulating cabin arranged in the float body, and a water pumping / pumping device, wherein the regulating cabin has a water inlet and an air inlet, and the water inlet is connected to the water pumping / pumping device.

2. The catamaran type wave energy power generation device according to claim 1, characterized in that: The float body is provided with a groove with an opening facing upward and a cover body for sealing the opening, and the water inlet and the air inlet are located on the cover body.

3. The catamaran type wave energy power generation device according to claim 1, characterized in that: The regulating chambers are in a plurality of numbers, and the plurality of regulating chambers are arranged in the float body at intervals.

4. The catamaran type wave energy power generation device according to claim 1, characterized in that: The first hinge assembly also includes two first arc-shaped connecting parts, two second arc-shaped connecting parts and a hinge axis, the two first arc-shaped connecting parts are arranged at intervals on a side of the hull close to the float, the two second arc-shaped connecting parts are arranged at intervals on a side of the float close to the hull, the two second arc-shaped connecting parts are respectively arranged adjacent to one of the first arc-shaped connecting parts, the first arc-shaped connecting part and the second arc-shaped connecting part partially intersect, and the hinge axis passes through a hinge port on the intersecting part to connect the hull and the float.

5. The catamaran type wave energy power generation device according to claim 4, characterized in that: The two first arc-shaped connecting parts are respectively adjacent to two sides of the hull, and the two second arc-shaped connecting parts are respectively adjacent to two sides of the float.

6. The catamaran type wave energy power generation device according to claim 1, characterized in that: The second articulated assembly includes an articulated bracket and an articulated key located above the hull and adjacent to the float, the articulated bracket includes two vertical poles fixed above the hull at intervals and a connecting shaft fixedly connected to the upper ends of the vertical poles, the rotor is connected to the connecting shaft via the articulated key, and the float can drive the rotor to rotate around the connecting shaft.

7. The catamaran type wave energy power generation device according to claim 6, characterized in that: The hinge key includes a pivot ring and a screw rod fixedly connected to the outer periphery of the pivot ring, the axial direction of the pivot ring is perpendicular to the length direction of the screw rod, the pivot ring is sleeved on the connecting shaft, and the screw rod is threadedly connected to the screw hole at the end of the rotor.

8. The catamaran type wave energy power generation device according to claim 1, characterized in that: The float is provided with a mounting base, and the stator of the permanent magnet generator is fixed on the mounting base.

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