Wave energy collecting device, offshore power generation platform and floating type renewable energy source and cultivation integrated platform

Abstract

The invention discloses a wave energy collecting device, an offshore power generation platform and a floating renewable energy source and cultivation integrated platform. The wave energy collecting device comprises a duck type buoy, a connecting arm, a mechanical transmission device and a rectification power generation device; the duck type buoy is provided with a rotating shaft, a head and a tail, the section of the tail is a first arc with the rotating shaft as the circle center, and the section of the head is a curve formed by extending and intersecting the two ends of the first arc in the direction away from the rotating shaft. One end of the connecting arm is rotationally connected to a rotating shaft of the duck-type buoy, and the other end of the connecting arm is used for being connected with a floating platform so that the duck-type buoy can be hung on the floating platform; an installation space is defined by the connecting arms, the mechanical transmission device and the rectification power generation device are installed in the installation space, and the duck type buoy and the rectification power generation device are in transmission connection through the mechanical transmission device. According to the wave energy collecting device, the duck type floating barrels are hung on the floating platform, stabilization and oscillation reduction are facilitated, and the safety of the floating platform is improved.

Description

Technical Field

[0001] The present invention relates to the field of marine engineering technology, and in particular to a wave energy collection device, an offshore power generation platform and a floating renewable energy and aquaculture integrated platform. Background Art

[0002] Floating platform is a special structure platform used in marine engineering and other fields. The marine environment is complex and changeable. Under the influence of wind, waves and currents, the floating platform will experience large swaying motion, which seriously reduces the structural stability and safety of the floating platform in the marine environment. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a wave energy collection device that is conducive to reducing rolling and swaying and improving the safety of a floating platform.

[0004] The invention also provides an offshore power generation platform.

[0005] The present invention also proposes a floating renewable energy and aquaculture integrated platform.

[0006] A first aspect of the present invention provides a wave energy collection device, which includes a duck pontoon, a connecting arm, a mechanical transmission device and a rectifier power generation device; the duck pontoon has a rotating shaft, and the duck pontoon is configured so that waves push the duck pontoon to rotate around the rotating shaft; the duck pontoon has a connected head and tail; on a cross section perpendicular to the rotating shaft, the cross-sectional shape of the tail is a first arc with the rotating shaft as the center, and the cross-sectional shape of the head is a second directrix, and the second directrix is ​​a curve formed by the two ends of the first arc extending and converging in a direction away from the rotating shaft; one end of the connecting arm is rotatably connected to the rotating shaft of the duck pontoon, and the other end of the connecting arm is used to connect to a floating platform to hang the duck pontoon on the floating platform; the connecting arm encloses an installation space, and the mechanical transmission device and the rectifier power generation device are installed in the installation space, and the duck pontoon and the rectifier power generation device are connected through the mechanical transmission device.

[0007] In some embodiments, the second directrix is ​​configured as a second arc at an end away from the rotation axis; the first arc and the second arc protrude in directions away from each other.

[0008] In some embodiments, the duck float is constructed as a cylinder formed by extending the first arc and the second directrix in a direction parallel to the rotation axis and having an extension length of L; the diameter of the first arc is D1; ​​the diameter of the second arc is D2; wherein L=2*D1=4*D2.

[0009] In some embodiments, a first chamber is disposed in the head portion, and a second chamber is disposed in the tail portion; the first chamber is communicated with the second chamber to transport ballast material between the first chamber and the second chamber.

[0010] In some embodiments, the second directrix is ​​tangent to the first arc.

[0011] In some embodiments, the number of the connecting arms is two, and the duck float is hinged between the two connecting arms.

[0012] In some embodiments, the mechanical transmission device includes a driven wheel, an output wheel, an output shaft and a one-way transmission mechanism; the driven wheel is driven by the duck float and is used to drive the output wheel to rotate; the output wheel is sleeved on the output shaft, and the two are transmitted through the one-way transmission device; the output shaft is connected to the rectifier generator.

[0013] In some embodiments, the outer ring of the driven wheel has a first input gear and a second input gear spaced axially therefrom, and the diameters of the first input gear and the second input gear are different; the output wheels are two axially spaced apart from each other on the output shaft, and the outer ring of each output wheel has an output gear, one of which is the first output gear and the other is the second output gear; the mechanical transmission device also includes an intermediate gear; the first input gear is directly meshed with the first output gear for transmission, and the second input gear is spaced apart from the second output gear and both are meshed with the intermediate gear.

[0014] In some embodiments, the one-way transmission mechanism includes a first one-way transmission member arranged on the inner ring of the output wheel and a second one-way transmission member arranged on the output shaft; when the output wheel rotates in a first direction, the first one-way transmission member and the second one-way transmission member abut and cooperate in the circumferential direction of the output shaft to drive the output shaft to rotate; when the output gear rotates in a second direction opposite to the first direction, the first one-way transmission member and the second one-way transmission member disengage from the transmission cooperation.

[0015] In some embodiments, one of the first one-way transmission member and the second one-way transmission member is configured as a ratchet, and the other is configured as a pawl, the pawl being installed in a pawl cavity by an elastic member, and the elastic member being used to exert an elastic force to cause the pawl to extend out of the pawl cavity; when the first one-way transmission member rotates in the first direction, the ratchet and the pawl abut in the circumferential direction of the output shaft to drive the pawl to rotate; when the first one-way transmission member rotates in the second direction, the ratchet and the pawl abut in the radial direction of the output shaft to retract the pawl into the pawl cavity.

[0016] In some embodiments, the mechanical transmission device further comprises an input wheel and a flexible transmission member; the input wheel is coaxially arranged with the duck float; the input wheel and the driven wheel rotate synchronously via the flexible transmission member.

[0017] In some embodiments, the rectifier-generator comprises a generator and an inertia wheel, and the generator is connected to the output shaft of the mechanical transmission device via the inertia wheel.

[0018] In some embodiments, the rectifier power generation device further includes a planetary gearbox, the generator is connected to the output shaft via the planetary gearbox, and the planetary gearbox is used to increase the rotation speed.

[0019] The second embodiment of the present invention provides an offshore power generation platform, which includes a floating platform and a wave energy collection device according to the first embodiment of the present invention, wherein the floating platform is provided with a plurality of columns and a plurality of connecting beams, and two adjacent columns are connected by the connecting beams; and a plurality of wave energy collection devices are installed on the connecting beams. The offshore power generation platform also includes a floating horizontal axis wind turbine, which is arranged on the column.

[0020] A third embodiment of the present invention provides a floating renewable energy and aquaculture integrated platform, comprising the offshore power generation platform of the second embodiment of the present invention, wherein an aquaculture net box is provided in the floating platform.

[0021] It can be seen from the technical solution that the embodiments provided by the present invention have the following advantages: (1) Under the action of waves, the dynamic pressure generated by the waves is first applied to the head of the duck float, causing the entire duck float to swing back and forth around the rotation axis, and the rectifier power generation device is connected to the duck float through the mechanical transmission device to generate electricity. In this process, the duck float converts wave energy into its own kinetic energy, the mechanical transmission device converts the kinetic energy of the duck float into mechanical energy, and the rectifier power generation device converts mechanical energy into electrical energy. The head is connected to the tail and extends in a direction away from the rotation axis. Through this structural setting, the force arm of wave energy applied to the duck buoy can be increased, and the primary conversion efficiency can be improved, that is, the duck buoy's absorption efficiency of wave energy can be improved; (2) The cross-sectional shape of the tail perpendicular to the rotation axis is a first arc with the rotation axis as the center, which reduces the reflection and transmission of waves, increases the absorption efficiency of wave energy, and plays a role in reducing rolling and swaying; (3) The wave energy collection device also includes a rectifier power generation device and a mechanical transmission device. The duck buoy and the rectifier power generation device are connected through the mechanical transmission device; each connecting arm encloses an installation space, and the mechanical transmission device and the rectifier power generation device are installed in the installation space. The rectifier power generation device and the mechanical transmission device are integrated in the connecting arm, so that the wave energy collection device realizes a modular design. In the assembly process of the wave energy collection device and the floating platform, after the wave energy collection device is assembled in advance, the other end of the connecting arm can be directly installed on the floating platform, which can simplify the assembly process, reduce the difficulty of assembly, and improve the flexibility of the system. When applied to a specific scenario of a floating platform, the wave energy collection device provided in this embodiment adopts a modular design, which can directly replace a faulty or damaged wave energy collection device, thereby reducing maintenance costs and improving the flexibility of the system; (4) The duck buoy is hung on the floating platform through a connecting arm. The duck buoy floats on the water surface, thereby increasing the overall waterline area of ​​the floating platform and improving the stability of the floating platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 is a schematic structural diagram of a wave energy collection device according to an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of the overall structure of a duck-type buoy according to an embodiment of the present invention;

[0025] Figure 3is a cross-sectional schematic diagram of a duck-type buoy according to an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of the structure of a duck-type buoy at different initial positions according to an embodiment of the present invention, and is also a schematic diagram of the duck-type buoy when it swings relative to the rotation axis;

[0027] Figure 5 is a schematic diagram of the assembly of a wave energy collection device, a mechanical transmission device and a rectifier power generation device according to an embodiment of the present invention;

[0028] Figure 6 is a schematic structural diagram of a mechanical transmission device according to an embodiment of the present invention;

[0029] Figure 7 is a schematic diagram of a partial structure of a mechanical transmission device according to an embodiment of the present invention;

[0030] Figure 8 is a schematic diagram of the cooperation between the ratchet and the pawl according to an embodiment of the present invention;

[0031] Fig. 9 is a structural schematic diagram of a rectifier power generation device according to an embodiment of the present invention;

[0032] Fig.10 is a schematic structural diagram of an offshore power generation platform according to an embodiment of the present invention at a viewing angle;

[0033] Fig.11 is a schematic structural diagram of an offshore power generation platform according to an embodiment of the present invention from another perspective;

[0034] Fig.12 Schematic diagram of the supporting structure of the duck-type buoy according to an embodiment of the present invention.

[0035] Reference numerals:

[0036] Offshore power generation platform 1000;

[0037] Wave energy power generation equipment 100, floating platform 200, floating horizontal axis wind turbine 300;

[0038] Duck pontoon 1, rotation axis 10, head 11, second alignment line 111, second arc 1111, first chamber 113, tail 12, first arc 121, second chamber 122, truss 15, connecting part 16;

[0039] Connecting arm 2;

[0040] Mechanical transmission device 3, input wheel 31, input wheel flange bearing 311, input wheel synchronization shaft 312, driven wheel 32, input gear 320, first input gear 321, second input gear 322, driven wheel flange bearing 323, driven wheel synchronization shaft 324, output wheel 33, output gear 330, first output gear 331, second output gear 332, ratchet 333, output wheel flange bearing 334, output shaft 34, ratchet 341, flexible transmission member 35, intermediate gear 36, intermediate gear flange bearing 361, intermediate gear synchronization shaft 362;

[0041] Rectification and power generation device 4, generator 41, inertia wheel 42, planetary gear box 43, finishing circuit box 44;

[0042] Column 5;

[0043] Connecting beam 6;

[0044] Heave plate 7;

[0045] Anchor chain 8;

[0046] A first initial position 1a and a second initial position 1b. DETAILED DESCRIPTION

[0047] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "clockwise", "counterclockwise", "axial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are 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, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of 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.

[0050] A floating platform is an offshore structure that floats on the sea surface and can locate and perform various tasks in the marine environment. For example, based on a floating platform, marine renewable energy utilization equipment can be installed on the floating platform and generate electricity at sea. For another example, aquaculture production activities can be carried out in the area surrounded by the floating platform.

[0051] However, the marine environment is complex and changeable. Under the combined effects of wind, waves and currents, the floating platform will experience large swaying motions, which seriously reduces the safety of the floating platform in the ocean. Therefore, how to reduce the motion response of the floating platform is an urgent technical issue.

[0052] In the related technology, marine renewable energy utilization equipment includes floating horizontal axial wind turbines and wave energy collection devices. The floating horizontal axis wind turbine is located at a high position on the floating platform, which will cause the overall center of gravity of the wind turbine and the platform to be too high, seriously reducing the safety of the floating platform in wind and waves. Due to its layout or mechanism of action, the wave energy collection device can only absorb less wave load, and the gain effect on the rolling and sway reduction of the floating platform is weak. Therefore, it is more urgent to improve the stability and safety of the floating platform on which the floating horizontal axial wind turbine is installed.

[0053] In order to solve the above problems, the present invention proposes a wave energy collection device 100, an offshore power generation platform 1000 and a floating renewable energy and aquaculture integrated platform.

[0054] Embodiment 1

[0055] like Figure 1 , Figure 5 and Fig.10 As shown, this embodiment provides a wave energy collection device 100 , which includes a duck-type buoy 1 , a connecting arm 2 , a mechanical transmission device 3 and a rectifier power generation device 4 .

[0056] The duck buoy 1 has a rotation axis 10 , and the duck buoy is configured so that waves push the duck buoy 1 to rotate around the rotation axis 10 .

[0057] The duck float 1 has a head 11 and a tail 12 connected to each other; in a cross section perpendicular to the rotation axis 10, the cross-sectional shape of the tail 12 is a first arc 121 with the rotation axis 10 as the center (such as Figure 2 As shown by the bold lines in FIG. 1 , the cross-sectional shape of the head 11 is a first directrix 111 , and the first directrix is ​​a curve formed by the two ends of the first arc 121 extending in a direction away from the rotation axis 10 and intersecting.

[0058] It should be further explained that the duck float 1 is constructed in the shape of a cam that rotates around the rotation axis 10 .

[0059] One end of the connecting arm 2 is rotatably connected to the duck-type pontoon 1 at the rotating shaft 10, and the other end of the connecting arm 2 is used to connect to the floating platform 200 so as to hang the duck-type pontoon 1 on the floating platform 200; the connecting arm 2 encloses an installation space, and the mechanical transmission device 3 and the rectifier power generation device 4 are installed in the installation space, and the duck-type pontoon 1 and the rectifier power generation device 4 are connected through the mechanical transmission device 3.

[0060] When waves act on the duck buoy, the duck buoy 1 rotates around the rotation axis 10, and the pressure of the waves causes the head of the duck buoy 1 to rise and sink reciprocatingly. The kinetic energy and potential energy are converted into mechanical energy through the mechanical transmission device in the connecting arm, and then converted into electrical energy through the rectifier generator 4.

[0061] It should be noted that the cross-sectional shape of the tail 12 is a first arc 121 with the rotation axis 10 as the center, which can reduce the reflection and transmission of waves, increase the absorption efficiency of wave energy, and play a role in reducing rolling and swaying. Therefore, if the duck pontoon 1 is to achieve the function of wave absorbing and wave relieving, the tail of the duck pontoon 1 needs to take the rotation axis 10 as the center of the first arc 121, and a rotating mechanism can be set at the rotation axis 10 to rotate with the connecting arm. In an optional specific embodiment, a flange bearing is provided at the rotation axis 10 of the duck pontoon 1, and the connecting arm can be pivotally connected to the duck pontoon 1 through the flange bearing. In another optional specific embodiment, the rotation axis of the duck pontoon 1 is a virtual axis, and the virtual axis includes a sleeve fixed on the duck pontoon 1, and the rotation of the duck pontoon 1 can be regarded as a rotation around the virtual axis.

[0062] During installation, the installer adjusts the installation position of the duck pontoon 1 so that the rotation axis 10 of the duck pontoon 1 is approximately perpendicular to the wave direction (wave direction, the direction from which the waves come), the head 11 is arranged to face the wave direction, and the tail 12 is arranged to face away from the wave direction.

[0063] It can be seen from the technical solution that the embodiment provided by the present invention has the following advantages: (1) Under the action of waves, the dynamic pressure generated by the waves is first applied to the head 11 of the duck pontoon 1, causing the entire duck pontoon 1 to swing back and forth around the rotation axis 10, and the rectifier generator 4 is connected to the duck pontoon 1 through the mechanical transmission device 3 to generate electricity. In this process, the duck pontoon 1 converts wave energy into its own kinetic energy, the mechanical transmission device 3 converts the kinetic energy of the duck pontoon 1 into mechanical energy, and the rectifier generator 3 converts mechanical energy into electrical energy. The head 11 is extended in a direction away from the rotation axis 10. Through this structural setting, the force arm of wave energy applied to the duck buoy 1 can be increased, and the primary conversion efficiency can be improved, that is, the absorption efficiency of the duck buoy 1 to wave energy can be improved; (2) The cross-sectional shape of the tail 12 is a first arc 121 with the rotation axis 10 as the center, which can reduce the reflection and transmission of waves, increase the absorption efficiency of wave energy, and play a role in reducing rolling and swaying; (3) The wave energy collection device 100 also includes a rectifier power generation device 4 and a mechanical transmission device 3. The duck buoy 1 and the rectifier power generation device 4 are connected by the mechanical transmission device 3; each connecting arm 2 encloses an installation space, and the mechanical transmission device 3 and the rectifier power generation device 4 are installed in the installation space. The rectifier power generation device 4 and the mechanical transmission device 3 are integrated in the connecting arm 2, so that the wave energy collection device 100 realizes a modular design. During the assembly process of the wave energy collection device 100 and the floating platform 200, after the wave energy collection device 100 is assembled in advance, the other end of the connecting arm 2 can be directly installed on the floating platform 200, which can simplify the assembly process, reduce the difficulty of assembly, and improve the flexibility of the system. When applied to the specific scenario of the floating platform 200, the wave energy collection device 100 provided in this embodiment adopts a modular design, which can directly replace the faulty or damaged wave energy collection device 100, reduce the maintenance cost, and improve the flexibility of the system; (4) The duck pontoon 1 is hung on the floating platform 200 through the connecting arm 2, and the duck pontoon 1 floats on the water surface, so that the overall waterline area of ​​the floating platform 200 is increased, and the stability of the floating platform 200 is improved.

[0064] like Figure 2 As shown, further, in the cross section perpendicular to the rotation axis 10, the cross-sectional shape of the head 11 is a second directrix 111 (as shown in FIG. Figure 2 The second directrix 111 is a curve formed by the two ends of the first arc 121 extending and intersecting in a direction away from the rotation axis 10. The second directrix 111 is configured as a second arc 1111 at the end away from the rotation axis 10. The first arc 121 and the second arc 1111 protrude in directions away from each other. The head 11 is configured as an arc surface on the side away from the rotation axis 10, which is conducive to reducing damage to the duck buoy 1 caused by wave impact and reducing stress concentration.

[0065] like Figure 2As shown, further, the duck pontoon 1 is constructed as a cylinder formed by extending the first arc 11 and the second directrix 111 in a direction parallel to the rotation axis 10, and the extension length is L; the diameter of the first arc 121 is D1; ​​the diameter of the second arc 1111 is D2; wherein, L=2*D1=4*D2. Such a setting can improve the absorption efficiency of wave energy. In theory, the primary conversion efficiency from wave energy to duck pontoon mechanical energy can reach 80%-90%. It should be noted that the duck pontoon 1 is improved and optimized based on the Salter duck pontoon, forming a new nodding duck shape, which can improve the primary conversion efficiency.

[0066] like Figure 3 and Figure 4 As shown, further, a first chamber 113 is provided in the head 11, and a second chamber 122 is provided in the tail; the first chamber 113 is connected to the second chamber 122 to transport ballast materials between the first chamber 113 and the second chamber 122, so as to switch the duck pontoon 1 between the first initial position 1a and the second initial position 1b; in the first initial position 1a, the ballast materials are located in the first chamber 113, and the head 11 is heavier than the tail 12, so that the head 11 is tilted downward relative to the tail 12; in the second initial position 1b, the ballast materials are located in the second chamber 122, so that the head 11 is tilted upward relative to the tail 12. In this way, the duck pontoon 1 can adjust its own posture and buoyancy according to the marine environment, and the overall moment of inertia of the duck pontoon 1 is changed by transporting ballast materials between the first chamber 113 and the second chamber 122, thereby changing the initial elevation angle of the duck pontoon 1.

[0067] According to the pool test result data of the duck buoy 1, when the duck buoy 1 is located at the first initial position 1a, the head is tilted downward relative to the tail, and the motion response of the duck buoy 1 is low. Therefore, when the floating platform 200 encounters severe sea conditions, the ballast material can be transported to the first chamber 113 to reduce the motion response of the duck buoy 1 and protect the duck buoy 1; when the duck buoy 1 is located at the second initial position 1b, the head is tilted upward relative to the tail, the movement of the duck buoy 1 is more violent, and the power generation performance is better, so the ballast material is arranged in the second chamber 122 by default to improve the power generation performance.

[0068] Furthermore, the second directrix 111 is tangent to the first arc 121, which can reduce stress concentration of the duck pontoon 1 and improve the durability of the duck pontoon 1. The second directrix 111 includes a second arc 1111 and a transition line segment, the first arc 121 and the second arc 1111 are connected by a transition line segment, and the transition line segment is tangent to the first arc 121.

[0069] In a specific example, the transition line segments are tangent to the first arc 121 and the second arc 1111 .

[0070] like Figure 1 and Fig.10 As shown, further, there are two connecting arms 2, and the duck pontoon 1 is hinged between the two connecting arms 2. By arranging multiple connecting arms 2 on the rotating shaft side of the duck pontoon 1, the stability and reliability of the assembly between the duck pontoon 1 and the floating platform 200 can be improved.

[0071] Embodiment 2

[0072] In the related art, the Salter duck buoy structure adopts a hydraulic transmission device. However, the hydraulic transmission system is easy to damage and break. In terms of equipment maintenance, it is not only costly, but also difficult to implement.

[0073] like Figure 5 As shown, in order to solve this technical problem, this embodiment provides a mechanical transmission device 3. The mechanical transmission device 3 includes a driven wheel 32, an output wheel 33, an output shaft 34 and a one-way transmission mechanism. The driven wheel 32 is driven by the duck-type pontoon 1 and is used to drive the output wheel 33 to rotate. The output wheel 33 is sleeved on the output shaft 34, and the two are transmitted through the one-way transmission device. The output shaft 34 is connected to the rectifier generator 4. The reciprocating bidirectional swing of the duck-type pontoon 1 transmits a rotation in one direction to the rectifier generator 4 through the mechanical transmission device 3. This one-way transmission is conducive to protecting the rectifier generator 4 and avoiding reverse impact on the rectifier generator 4. At the same time, energy can be transported more stably.

[0074] like Figure 4 and Figure 8 As shown, further, the outer ring of the driven wheel 32 has a first input gear 321 and a second input gear 322 spaced apart along the axial direction thereof, and the diameters of the first input gear 321 and the second input gear 322 are different; the output wheels 33 are two axially spaced apart and arranged on the output shaft 34, and the outer ring of each output wheel 33 has an output gear 330, one of which is a first output gear 331 and the other is a second output gear 332; the mechanical transmission device also includes an intermediate gear 36; the first input gear 321 and the first output gear 331 are directly meshed for transmission, and the second input gear 322 and the second output gear 332 are spaced apart and both meshed with the intermediate gear 36. The first output gear 331 and the second output gear 332 rotate in opposite directions, one of which rotates in a clockwise direction and the other rotates in a counterclockwise direction, so that there is always an output gear 330 that can transmit unidirectionally to the output shaft 34, thereby improving energy utilization efficiency.

[0075] Furthermore, the one-way transmission mechanism includes a first one-way transmission member arranged on the inner ring of the output wheel 33 and a second one-way transmission member arranged on the output shaft 34; when the output wheel 33 rotates in a first direction, the first one-way transmission member and the second one-way transmission member abut and cooperate in the circumferential direction of the output shaft 34 to drive the output shaft 34 to rotate; when the output gear 330 rotates in a second direction opposite to the first direction, the first one-way transmission member and the second one-way transmission member disengage from the transmission cooperation.

[0076] like Figure 7 As shown, further, one of the first one-way transmission member and the second one-way transmission member is configured as a ratchet 333, and the other is configured as a pawl 341, and the pawl 341 is retractably installed in the pawl cavity. When the ratchet 333 rotates in a first direction, the ratchet 333 and the pawl 341 abut in the circumferential direction of the output shaft 34 to drive the pawl 341 to rotate, and when the ratchet 333 rotates in a second direction opposite to the first direction, the ratchet 333 and the pawl 341 abut in the radial direction of the output shaft to retract the pawl 341 into the pawl cavity. Specifically, a pawl sleeve is sleeved on the output shaft 34, and a pawl cavity is opened in the pawl sleeve, and the pawl is retractably arranged in the pawl cavity. The pawl is installed in the pawl cavity through an elastic member, and the elastic member is in a compressed state so that the pawl protrudes out of the pawl cavity.

[0077] In a specific example, Figure 5 and Figure 6 As shown, the mechanical transmission device 3 includes an input wheel 31, a driven wheel 32, an output wheel 33 and an output shaft 34. The input wheel 31 is coaxially arranged with the duck pontoon 1 to drive and connect the duck pontoon 1. The input wheel 31 rotates synchronously with the driven wheel 32. The output wheel 33 is sleeved on the output shaft 34 so that the output shaft 34 and the output wheel 33 rotate synchronously. The output shaft 34 is used to drive and connect the rectifier power generation device 4; the outer ring of the driven wheel 32 is configured as an input gear 320, and the outer ring of the output wheel 33 is configured as an output gear 330. The input gear 320 is connected to the output gear 330, and the diameter of the input gear 320 is larger than the diameter of the output gear 330, so as to realize a first-stage reduction between the input gear 320 and the output gear 330. This embodiment provides a mechanical transmission device 3 different from a hydraulic transmission device, which has lower maintenance costs and is more suitable for the specific scenario of the floating platform 200.

[0078] The duck float 1 is connected to the input wheel 31 in a transmission manner, and the reciprocating swing of the duck float 1 around the rotation axis is converted into the rotation of the input wheel 31. The input wheel 31 rotates synchronously with the driven wheel 32, and the input gear 320 of the outer ring of the driven wheel 32 is meshed with the output gear 330 of the outer ring of the output wheel 33, and the rotation of the driven wheel 32 can be converted into the rotation of the output wheel 33. The output wheel 33 drives the output shaft 34 to rotate, and the output shaft 34 is connected to the rectifier generator 4 in a transmission manner. As a result, the mechanical transmission device 3 can convert the reciprocating swing of the duck float 1 into the rotation of the output shaft 34 and finally transmit it to the rectifier generator 4. This embodiment provides a mechanical transmission device 3 that is different from a hydraulic transmission device, which has a lower maintenance cost and is more suitable for the specific scenario of the floating platform 200.

[0079] like Figure 5 and Figure 6 As shown, the mechanical transmission device 3 further includes a flexible transmission member 35, and the input wheel 31 and the driven wheel 32 rotate synchronously through the flexible transmission member 35. By adopting the flexible transmission member 35 for transmission, the unevenness of the rotation of the input wheel 31 can be reduced, and the rectifier generator 4 can be protected from overload.

[0080] like Figure 8 As shown, further, the input gear 320 includes a first input gear 321 and a second input gear 322 which are spaced apart on both sides of the axial direction of the driven wheel 32, and the output gear 330 includes a first output gear 331 and a second output gear 332 which are spaced apart on both sides of the axial direction of the output wheel 33; the mechanical transmission device 3 also includes an intermediate gear 36, the first input gear 321 and the first output gear 331 are directly meshed for transmission, the second input gear 322 and the second output gear 332 are spaced apart and both meshed with the intermediate gear 36, so the first output gear 331 and the second output gear 332 rotate in opposite directions, one of which rotates in a clockwise direction and the other rotates in a counterclockwise direction; similarly, the ratchet 333 of the first output gear 331 and the ratchet 333 of the second output gear 332 always rotate in opposite directions, one of which rotates in a clockwise direction and the other rotates in a counterclockwise direction, so that one of the two output gears can always transmit unidirectionally to the output shaft 34, thereby improving the stability and continuity of energy transportation.

[0081] like Figure 6 and Figure 8 As shown, further, the mechanical transmission device 3 includes a plurality of different flange bearings, and the input wheel 31, the driven wheel 32, the intermediate gear 36 and the output shaft 34 are installed in the installation space through corresponding flange bearings.

[0082] like Figure 6As shown, specifically, the input wheel 31 is fixedly connected to the input wheel synchronization shaft 312, the driven wheel 32 is fixedly connected to the driven wheel synchronization shaft 324, the intermediate gear 36 is fixedly connected to the intermediate gear synchronization shaft 362, and the input wheel synchronization shaft 312, the driven wheel synchronization shaft 324, the intermediate gear synchronization shaft 362 and the output shaft 34 are arranged in parallel; Figure 5 and Figure 8 As shown, the input wheel flange bearing 311 is rotatably connected to the axial sides of the input wheel synchronization shaft 312 and the input wheel synchronization shaft 312 is installed in the installation space; the driven wheel flange bearing 323 is rotatably connected to the axial sides of the driven wheel synchronization shaft 324 and the driven wheel synchronization shaft 324 is installed in the installation space; the intermediate gear flange bearing 361 is rotatably connected to the axial sides of the intermediate gear synchronization shaft 362 and the intermediate gear synchronization shaft 362 is installed in the installation space; the output wheel flange bearing 334 is rotatably connected to the axial sides of the output shaft 34 and the output shaft 34 is installed in the installation space.

[0083] Embodiment 3

[0084] This embodiment is basically the same as the first embodiment, and further defines the rectifying and generating device 4 .

[0085] like Fig. 9 As shown, further, the rectifier power generation device 4 includes a generator 41 and an inertia wheel 42, and the generator 41 is connected to the output shaft 34 of the mechanical transmission device 3 through the inertia wheel 42. By setting the inertia wheel 42, a mechanical energy storage device is added to maintain the continuity of rotation, and the functions of energy storage and energy release can be realized, which plays a role in peak shaving and valley filling. The device effectively protects the safety of the battery, the voltage stabilizing module and the power load, thereby improving the stability of power generation and reducing the fluctuation rate of voltage and electric power.

[0086] like Fig. 9 As shown, further, the rectifier generator 4 also includes a planetary gearbox 43, the generator 41 is connected to the output shaft 34 through the planetary gearbox 43, the planetary gearbox 43 is used to increase the rotation speed, and the planetary gearbox 43 increases the rotation speed to reach the rated speed of the generator 41.

[0087] like Fig. 9 As shown, further, the rectifying power generation device 4 also includes a sorting circuit box 44, and a filter is arranged in the sorting circuit box 44 to smooth the current pulsation and provide a stable direct current output.

[0088] Embodiment 4

[0089] like Figure 10-11As shown, the present invention further provides an offshore power generation platform 1000, which includes a floating platform 200, on which a plurality of columns 5 and a plurality of connecting beams 6 are provided, and two adjacent columns 5 are connected by connecting beams 6; a plurality of wave energy collection devices 100 are installed on the connecting beams 6. As a result, the overall water plane area of ​​the floating platform 200 is increased, so that the stability of the offshore power generation platform 1000 is improved.

[0090] like Figure 10-11 As shown, further, a floating horizontal axis wind turbine 300 is installed on the column 5. The wave energy collection device 100 and the floating horizontal axis wind turbine 300 jointly generate electricity, realize the complementarity of wave energy and wind energy, further improve the stability of renewable energy power generation equipment, reduce the cost of electricity, and improve economic benefits. In addition, the wave energy collection device 100 installed on the periphery of the offshore power generation platform 1000 can also play the effect of reducing rolling and swaying, improve the overall wave resistance and safety of the offshore power generation platform 1000, and thus improve the wind energy conversion rate.

[0091] like Fig.10 As shown, the floating horizontal axis wind turbine 300 includes an impeller, a wind turbine rotatably connected to the impeller, and a tower for fixing the wind turbine. The tower extends in the height direction and is arranged at the top of the column 5.

[0092] It should be pointed out that the tower extends in the height direction, so that the impeller can collect wind energy at a high place, improving the collection efficiency, but correspondingly causing the center of gravity of the entire floating platform to be raised, so that the stability of the platform is affected. The offshore power generation platform 1000 in this embodiment is equipped with a wave energy collection device 100 on the periphery, wherein the duck-type buoy 1 can absorb the load imposed by the waves on the floating platform 200, which can play a role in reducing rolling and swaying, improving the overall seakeeping and safety of the offshore power generation platform 1000, and thus improving the wind energy conversion rate.

[0093] like Figure 10-11 As shown, further, a heave plate 7 is provided between the columns 5, and an anchor chain 8 for fixing is installed on each column 5.

[0094] Embodiment 6

[0095] The present invention also proposes a floating integrated renewable energy and aquaculture platform. Fishery aquaculture cages are arranged inside the floating platform 200, organically forming an integrated offshore power generation and aquaculture system. The wave energy collection device 100 acts as a wave breakwater, providing a calm marine environment for the internal waters of the floating platform 200, and can solve the problem of power supply for offshore aquaculture while breaking waves.

[0096] like Fig.12As shown, the duck type pontoon 1 is structurally supported by staggered trusses 15, thereby forming different first chambers 113 and second chambers 122. The duck type pontoon 1 is provided with connecting parts 16 on both axial sides, and the connecting parts 16 include flanges and connecting shafts. The input wheel synchronization shaft 312 is connected to the connecting shaft, and the connecting arm 2 is rotatably connected to the rotating shaft of the duck type pontoon 1 through the flange.

[0097] like Figure 1 and Figure 5 As shown, the connecting arm 2 is in an "inverted L-shape", and the connecting arm 2 includes a first extension portion arranged in the height direction and a second extension portion extending in the horizontal direction, the mechanical transmission device 3 is arranged in the first extension portion, the rectifying power generation device 4 is arranged in the second extension portion, and the second extension portion is used to fix the wave energy collection device 100 to the floating platform 200. The mechanical transmission device 3 and the wave energy collection device 100 are connected to the inside of the arm 2, and the watertightness is good.

[0098] It should be emphasized that the wave energy collection device 100 provided by the present invention is intended to effectively solve the challenges faced by existing offshore wave power generation devices by innovating the structural appearance, simplifying the installation process, reducing the cost of power generation, improving maintenance convenience and enhancing system flexibility. The wave energy collection device 100 provides excellent stability and adaptability by integrating the advanced duck buoy 1 design and modular structure, and can maintain a stable working state in a complex marine environment. The design of its connecting arm 2 not only reduces the dependence on the floating platform 200, but also makes the system have a higher anti-interference ability when encountering severe weather or wave conditions. The modular design allows flexible configuration and expansion according to actual needs and environmental conditions, thereby achieving optimized energy capture and utilization.

[0099] Other components and operations of the floating renewable energy and aquaculture integrated platform according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here. In the description of the present invention, "first feature" and "second feature" may include one or more of these features. The up-down direction, left-right direction and front-back direction are based on the up-down direction, left-right direction and front-back direction shown in the figure.

[0100] In the description of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0101] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0102] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wave energy collection device, characterized in that: It comprises a duck-type buoy (1), a connecting arm (2), a mechanical transmission device (3) and a rectifying and generating device (4); The duck-type buoy (1) has a rotation axis (10), and the duck-type buoy (1) is configured so that waves push the duck-type buoy (1) to rotate around the rotation axis (10); The duck-type buoy has a head (11) and a tail (12) connected to each other; In a cross section perpendicular to the rotation axis (10), the cross-sectional shape of the tail portion (12) is a first circular arc (121) with the rotation axis (10) as the center, and the cross-sectional shape of the head portion (11) is a second directrix (111), wherein the second directrix (111) is a curve formed by two ends of the first circular arc (121) extending in a direction away from the rotation axis (10) and intersecting with each other; One end of the connecting arm (2) is rotatably connected to the rotating shaft (10) of the duck-type buoy (1), and the other end of the connecting arm (2) is used to connect to a floating platform so as to hang the duck-type buoy (1) on the floating platform; The connecting arm (2) encloses an installation space, the mechanical transmission device (3) and the rectifying and generating device (4) are installed in the installation space, and the duck-type buoy (1) and the rectifying and generating device (4) are connected in transmission via the mechanical transmission device (3).

2. The wave energy collection device according to claim 1, characterized in that: The second directrix (111) is configured as a second circular arc (1111) at an end away from the rotation axis (10); The first circular arc (121) and the second circular arc (1111) protrude in directions away from each other.

3. The wave energy collection device according to claim 2, characterized in that: The duck float (1) is constructed as a cylinder formed by extending the first arc (121) and the second directrix (111) in a direction parallel to the rotation axis (10), and the extension length is L; The diameter of the first circular arc (121) is D1; The diameter of the second circular arc (1111) is D2; Among them, L=2*D1=4*D2.

4. The wave energy collection device according to claim 2, characterized in that: A first chamber (113) is provided in the head portion (11), and a second chamber (122) is provided in the tail portion (12); The first chamber (113) is in communication with the second chamber (122) so as to transport ballast material between the first chamber (113) and the second chamber (122).

5. The wave energy collection device according to claim 2, characterized in that: The second directrix (111) is tangent to the first arc (121).

6. The wave energy collection device according to claim 1, characterized in that: The number of the connecting arms (2) is two, and the duck float (1) is hinged between the two connecting arms (2).

7. The wave energy collection device according to claim 1, characterized in that: The mechanical transmission device (3) comprises a driven wheel (32), an output wheel (33), an output shaft (34) and a one-way transmission mechanism; The driven wheel (32) is driven by the duck float (1) and is used to drive the output wheel (33) to rotate; The output wheel (33) is sleeved on the output shaft (34), and transmission is transmitted between the two via the one-way transmission mechanism; The output shaft (34) is drivingly connected to the rectifying and generating device (4).

8. The wave energy collection device according to claim 7, characterized in that: The outer ring of the driven wheel (32) has a first input gear (321) and a second input gear (322) spaced apart along its axial direction, and the first input gear (321) and the second input gear (322) have different diameters; The output wheels (33) are two wheels axially spaced apart from each other on the output shaft (34), and the outer ring of each output wheel (33) has an output gear (330), one of which is a first output gear (331) and the other is a second output gear (332); The mechanical transmission device also includes an intermediate gear (36); The first input gear (321) is directly meshed with the first output gear (331) for transmission, and the second input gear (322) and the second output gear (332) are spaced apart and both mesh with the intermediate gear (36).

9. The wave energy collection device according to claim 7 or 8, characterized in that: The one-way transmission mechanism comprises a first one-way transmission member arranged on the inner ring of the output wheel (33) and a second one-way transmission member arranged on the output shaft (34); When the output wheel (33) rotates in a first direction, the first one-way transmission member and the second one-way transmission member abut against each other in the circumferential direction of the output shaft (34) to drive the output shaft (34) to rotate; When the output wheel (33) rotates in a second direction opposite to the first direction, the first one-way transmission member and the second one-way transmission member are disengaged from the transmission engagement.

10. The wave energy collection device according to claim 9, characterized in that: One of the first one-way transmission member and the second one-way transmission member is configured as a ratchet (333), and the other is configured as a pawl (341); the pawl (341) is installed in a pawl cavity via an elastic member, and the elastic member is used to exert an elastic force that causes the pawl to extend out of the pawl cavity; When the first one-way transmission member rotates in the first direction, the ratchet wheel (333) abuts against the pawl (341) in the circumferential direction of the output shaft (34) to drive the pawl (341) to rotate; When the first one-way transmission member rotates in the second direction, the ratchet wheel (333) abuts against the pawl (341) in the radial direction of the output shaft (34) so ​​that the pawl (341) retracts into the pawl cavity.

11. The wave energy collection device according to claim 7, characterized in that: The mechanical transmission device further comprises an input wheel (31) and a flexible transmission member (35); The input wheel (31) is coaxially arranged with the duck float (1); The input wheel (31) and the driven wheel (32) rotate synchronously via a flexible transmission member (35).

12. The wave energy collection device according to claim 8, characterized in that: The diameter of the driven wheel (32) is smaller than the diameter of the output wheel (33).

13. The wave energy collection device according to claim 1, characterized in that: The rectifying power generation device (4) comprises a generator (41) and an inertia wheel (42); the generator (41) is connected to an output shaft (34) of the mechanical transmission device (3) via the inertia wheel (42).

14. The wave energy collection device according to claim 13, characterized in that: The rectifying power generation device (4) further comprises a planetary gearbox (43), the generator (41) and the output shaft (34) are connected via the planetary gearbox (43), and the planetary gearbox (43) is used to increase the rotation speed.

15. An offshore power generation platform, characterized in that: include: A floating platform (200), wherein a plurality of columns (5) and a plurality of connecting beams (6) are provided on the floating platform (200), and two adjacent columns (5) are connected via the connecting beams (6); A plurality of wave energy collection devices (100) according to any one of claims 1 to 13, hung on the connecting beam (6) of the floating platform (200) via the connecting arm (2); A floating horizontal axis fan (300) is arranged on the column (5).

16. A floating renewable energy and aquaculture integrated platform, characterized in that: Comprising an offshore power generation platform (1000) according to claim 15; A breeding net box is provided inside the floating platform (200).

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