Disclosure of Invention
The invention provides a multi-body energy-gathering wave energy power generation device for solving the technical problems.
In order to solve the problems, the invention adopts the following technical scheme:
the multi-body energy-gathering wave energy power generation device comprises a wave-absorbing floating body, a matrix floating body, a transmission mechanism, a power generation system and a control system, wherein the wave-absorbing floating body is provided with an upper water section, a transition section and an underwater section, and the transition section is positioned between the upper water section and the underwater section; the water section is provided with a first convex curved surface, the transition section is provided with a concave curved surface, and the underwater section is provided with a second convex curved surface; the curvature of the second convex curved surface is larger than that of the first convex curved surface, the curvature of the concave curved surface is smaller than that of the second convex curved surface, and the curvature of the concave curved surface is larger than that of the first convex curved surface.
In the multi-body energy-gathering type wave power generation device provided by at least one embodiment of the present disclosure, the first convex curved surface, the second convex curved surface and the concave curved surface are all revolution surfaces.
In the multi-body energy-gathering type wave power generation device provided by at least one embodiment of the present disclosure, a maximum vertical distance between the first convex curved surface and the central axis of the wave-absorbing floating body is greater than a maximum vertical distance between the second convex curved surface and the central axis of the wave-absorbing floating body.
In the multi-body energy-gathering type wave power generation device provided by at least one embodiment of the present disclosure, a maximum vertical distance between the concave curved surface and the central axis of the wave-absorbing floating body is smaller than a maximum vertical distance between the second convex curved surface and the central axis of the wave-absorbing floating body.
In the multi-body energy-gathering type wave power generation device provided by at least one embodiment of the present disclosure, a main ballast cabin, an auxiliary ballast cabin and a drainage cabin are arranged in the wave-absorbing floating body; the wave absorbing floating body is internally provided with a first regulating valve and a second regulating valve, the main ballast cabin is connected with the auxiliary ballast cabin through the first regulating valve, and the main ballast cabin is connected with the drainage cabin through the second regulating valve; the wave-absorbing floating body is also provided with a drain valve, and the drain valve is connected with the drain cabin; and the wave-absorbing floating body is also provided with a water inlet valve, and the water inlet valve is connected with the main pressure cabin.
In the multi-body energy-gathering type wave power generation device provided in at least one embodiment of the present disclosure, the wave absorbing floating body further has: a first exhaust valve and a second exhaust valve; the first exhaust valve is used for exhausting the gas in the main pressure cabin into the auxiliary pressure cabin; and the second exhaust valve is used for exhausting the gas in the auxiliary pressure load cabin to the outside.
In the multi-body energy-gathering type wave power generation device provided by at least one embodiment of the present disclosure, the top surface and the bottom surface of the substrate floating body are perpendicular to the central axis of the wave-absorbing floating body, and at least part or all of the wave-absorbing floating body is located in the substrate floating body.
In the multi-body energy-gathering wave power generation device provided by at least one embodiment of the present disclosure, a first separator and a second separator are disposed in the wave-absorbing floating body, the first separator and the second separator are both fixedly connected with the wave-absorbing floating body, the main ballast tank is located between the first separator and the second separator, the auxiliary ballast tank is located above the first separator, the drainage tank is located below the second separator, and the main ballast tank and the auxiliary ballast tank are configured to be separated by the first separator, and the main ballast tank and the drainage tank are configured to be separated by the second separator.
In the multi-body energy-gathering type wave power generation device provided by at least one embodiment of the present disclosure, the first exhaust valve and the first regulating valve are both assembled on the first partition plate, and the second regulating valve is assembled on the second partition plate.
In the multi-body energy-gathering type wave power generation device provided by at least one embodiment of the present disclosure, the second exhaust valve is located at the top end of the wave-absorbing floating body, and the drain valve is located at the bottom end of the wave-absorbing floating body.
The beneficial effects of the invention are as follows: the wave-absorbing floating body is provided with a first convex curved surface, a concave curved surface and a second convex curved surface, so that the middle part of the wave-absorbing floating body is provided with a larger curvature mutation, and the outer contour is provided with a plurality of convex shapes, so that excellent hydrodynamic performance can be obtained.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only some embodiments, not all embodiments.
In the embodiments, it should be understood that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "top", "right side", "left end", "above", "back", "middle", etc. are based on the directions or positional relationships shown in the drawings are merely for convenience of description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In addition, in the description of the present invention, unless explicitly stated and limited otherwise, terms such as mounting, connecting, and coupling, etc., should be construed broadly, and may be, for example, fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
At least one embodiment of the present disclosure provides a multi-body energy-gathering wave power generation device, including a wave-absorbing floating body, a matrix floating body, a transmission mechanism, a power generation system and a control system, wherein the wave-absorbing floating body has an upper water section, a transition section and a lower water section, and the transition section is positioned between the upper water section and the lower water section; the water section is provided with a first convex curved surface, the transition section is provided with a concave curved surface, and the underwater section is provided with a second convex curved surface; the curvature of the second convex curved surface is larger than that of the first convex curved surface, the curvature of the concave curved surface is smaller than that of the second convex curved surface, and the curvature of the concave curved surface is larger than that of the first convex curved surface. The wave-absorbing floating body has a first convex curved surface, a concave curved surface and a second convex curved surface, so that the middle part of the wave-absorbing floating body has larger curvature mutation, and the outer contour has a plurality of convex shapes, thereby obtaining excellent hydrodynamic performance
At least one embodiment of the present disclosure provides a multi-body energy-gathering type wave power generation device, where the first convex curved surface, the second convex curved surface and the concave curved surface are all revolution surfaces.
At least one embodiment of the present disclosure provides a multi-body energy-gathering type wave power generation device, wherein a maximum vertical distance between the first convex curved surface and the central axis of the wave-absorbing floating body is greater than a maximum vertical distance between the second convex curved surface and the central axis of the wave-absorbing floating body.
At least one embodiment of the present disclosure provides a multi-body energy-gathering type wave power generation device, wherein a maximum vertical distance between the concave curved surface and the central axis of the wave-absorbing floating body is smaller than a maximum vertical distance between the second convex curved surface and the central axis of the wave-absorbing floating body.
At least one embodiment of the present disclosure provides a multi-body energy-gathering wave power generation device, wherein a main ballast cabin, a secondary ballast cabin and a drainage cabin are arranged in the wave-absorbing floating body; the wave absorbing floating body is internally provided with a first regulating valve and a second regulating valve, the main ballast cabin is connected with the auxiliary ballast cabin through the first regulating valve, and the main ballast cabin is connected with the drainage cabin through the second regulating valve; the wave-absorbing floating body is also provided with a drain valve, and the drain valve is connected with the drain cabin; and the wave-absorbing floating body is also provided with a water inlet valve, and the water inlet valve is connected with the main pressure cabin.
At least one embodiment of the present disclosure provides a multi-body energy-gathering type wave power generation device, wherein the wave absorbing floating body further comprises: a first exhaust valve and a second exhaust valve; the first exhaust valve is used for exhausting the gas in the main pressure cabin into the auxiliary pressure cabin; and the second exhaust valve is used for exhausting the gas in the auxiliary pressure load cabin to the outside.
In at least one embodiment of the present disclosure, a multi-body energy-gathering type wave power generation device is provided, where the top surface and the bottom surface of the base body floating body are perpendicular to the central axis of the wave-absorbing floating body, and the wave-absorbing floating body is at least partially or completely located in the base body floating body.
In at least one embodiment of the present disclosure, a first separator and a second separator are disposed in the wave-absorbing floating body, the first separator and the second separator are both fixedly connected to the wave-absorbing floating body, the main ballast tank is located between the first separator and the second separator, the auxiliary ballast tank is located above the first separator, the drainage tank is located below the second separator, and the main ballast tank and the auxiliary ballast tank are configured to be separated by the first separator, and the main ballast tank and the drainage tank are configured to be separated by the second separator.
At least one embodiment of the present disclosure provides a multi-body energy-gathering type wave power generation device, wherein the first exhaust valve and the first regulating valve are both assembled on the first partition plate, and the second regulating valve is assembled on the second partition plate.
At least one embodiment of the present disclosure provides a multi-body energy-gathering type wave power generation device, wherein the second exhaust valve is located at the top end of the wave-absorbing floating body, and the drain valve is located at the bottom end of the wave-absorbing floating body.
The multi-body energy-gathering type wave power generation device according to the embodiment of the present disclosure will be generally described with reference to the accompanying drawings.
As shown in fig. 1 to 7, a multi-body energy-gathering type wave power generating apparatus according to at least one embodiment of the present disclosure includes a wave absorbing float 10, a base float 20, a transmission mechanism 30, a power generating system 40, and a control system (not shown); the wave-absorbing floating body 10 is provided with an upper water section 11, a transition section 12 and a lower water section 13, wherein the transition section 12 is positioned between the upper water section 11 and the lower water section 13; wherein the water upper section 11 has a first convex curved surface 111, the transition section 12 has a concave curved surface 121, and the underwater section 13 has a second convex curved surface 131; wherein the curvature of the second convex curved surface 131 is greater than the curvature of the first convex curved surface 111, the curvature of the concave curved surface 121 is less than the curvature of the second convex curved surface 131, and the curvature of the concave curved surface 121 is greater than the curvature of the first convex curved surface 111.
In the present embodiment, the first convex curved surface 111, the second convex curved surface 131, and the concave curved surface 121 are all revolution surfaces.
In this embodiment, the maximum vertical distance between the surface of the first convex curved surface 111 and the central axis of the wave-absorbing floating body 10 is greater than the maximum vertical distance between the surface of the second convex curved surface 131 and the central axis of the wave-absorbing floating body 10. The maximum vertical distance between the surface of the concave curved surface 121 and the central axis of the wave-absorbing floating body 10 is smaller than the maximum vertical distance between the surface of the second convex curved surface 131 and the central axis of the wave-absorbing floating body 10.
In the present embodiment, the wave-absorbing floating body 10 has a main ballast tank 50, a sub-ballast tank 60, a drainage tank 70, a first exhaust valve 80 and a second exhaust valve 90 inside; the wave-absorbing floating body 10 is internally provided with a first regulating valve 14 and a second regulating valve 15, the main ballast tank 50 and the auxiliary ballast tank 60 are connected through the first regulating valve 14, and the main ballast tank 50 and the drain tank 70 are connected through the second regulating valve 15; wherein, the drainage pump 16 is arranged in the drainage cabin 70, the wave-absorbing floating body 10 is also provided with a drainage valve 19, and the drainage valve 19 is connected with the drainage cabin 70; wherein, the wave-absorbing floating body 10 is also provided with a water inlet valve which is connected with the main pressure cabin 50;
the first exhaust valve 80 is used for exhausting the gas in the main ballast tank 50 into the auxiliary ballast tank 60; the second exhaust valve 90 is used for exhausting the gas in the sub-ballast tank 60 to the outside.
The top surface and the bottom surface of the substrate floating body 20 are perpendicular to the central axis of the wave-absorbing floating body 10, and part of the wave-absorbing floating body 10 is positioned in the substrate floating body 20.
The wave-absorbing floating body 10 is internally provided with a first partition plate 17 and a second partition plate 18, the first partition plate 17 and the second partition plate 18 are fixedly connected with the wave-absorbing floating body 10, the main ballast tank 50 is positioned between the first partition plate 17 and the second partition plate 18, the auxiliary ballast tank 60 is positioned above the first partition plate 17, the water discharge tank 70 is positioned below the second partition plate 18, the main ballast tank 50 and the auxiliary ballast tank 60 are configured to be separated by the first partition plate 17, and the main ballast tank 50 and the water discharge tank 70 are configured to be separated by the second partition plate 18.
The first exhaust valve 80 and the first regulating valve 14 are both mounted on the first partition 17, and the second regulating valve 15 is mounted on the second partition 18.
The second exhaust valve 90 is positioned at the top end of the wave-absorbing floating body 10, and the drain valve 19 is positioned at the bottom end of the wave-absorbing floating body 10.
In the present embodiment, the transmission mechanism 30 includes a first vertical shaft 31, a first linkage shaft 32, a connecting rod 33, a second vertical shaft 34, and a second linkage shaft 35.
In this embodiment, the base body floating body 20 includes three cylindrical buoyancy tanks 21, an upper deck 22 and a supporting foundation 23, and the buoyancy tanks 21 are fixedly arranged on the supporting foundation 23 in a triangular distribution; the upper deck 22 is provided with three mounting holes (not shown), and the buoyancy chamber 21 passes through the mounting holes provided in the upper deck 22 and is fixedly connected with the upper deck 22; the buoyancy tank 21 has a hollow structure and is provided with an adjustment port (not shown) for adjusting the draft of the body float 20 by pumping/discharging ballast water into/from the buoyancy tank 21. A support column 24 is arranged between the support foundation 23 and the upper deck 22, two ends of the support column 24 are fixedly connected with the support foundation 23 and the upper deck 22 respectively, a through hole (not shown) is arranged on the upper deck 22, and a linear bearing 221 is assembled in the through hole. The upper deck 22 is provided with standoffs 222.
In this embodiment, the middle part of the upper end surface of the wave-absorbing floating body is fixedly connected with a first vertical shaft 31, and the first vertical shaft 31 passes through a linear bearing 221 and can vertically reciprocate relative to the upper deck 22. The first coupling shaft 32 is radially penetrating through the upper end of the first vertical shaft 31, and the first coupling shaft 32 is rotatable around its own axis within the first vertical shaft 31. The connecting rod 33 is provided with a groove 331; the first coupling shaft 32 is connected to the link 33 through a groove 331, and is slidably provided in the groove 331. The hydraulic cylinder of the power generation system 40 is arranged on the upper deck 22, the upper end of a piston rod of the hydraulic cylinder is fixedly connected with the second vertical shaft 34, and the second vertical shaft 34 can vertically reciprocate in a plane under the limit of the piston rod of the hydraulic cylinder. The second coupling shaft 35 radially penetrates through the upper end of the second vertical shaft 34, and is rotatable about its own axis within the second vertical shaft 34. The second coupling shaft 35 is connected to the link 33 through a groove 331, and the second coupling shaft 35 is slidable in the groove 331. The support 222 is fixedly attached to the upper deck 22. The link 33 is hinged to the support 222 and is rotatable about a hinge point with respect to the support 222.
In a further embodiment, not shown, the drain opening of the drain pump 16 is connected to the drain valve 19 by a pipe (not shown).
In yet another embodiment, not shown, the power generation system 40 is a mechanical-hydraulic PTO system, which illustratively includes a hydraulic cylinder, a check valve, a spill valve, a solenoid control valve, an energy storage mechanism (not shown), a hydraulic motor, and a generator. The connecting rod can convert the first vertical axial vertical linear motion into the second vertical axial vertical linear motion. The second vertical shaft is fixedly connected with a piston rod of the hydraulic cylinder, so that the mechanical energy of the vertical shaft is converted into the pressure energy of hydraulic oil. The hydraulic motor and the generator can convert pressure energy into electric energy, and then grid-connected power generation is realized through an external cable.
When in operation, the device comprises:
under the action of waves, the wave-absorbing floating body moves up/down relative to the base floating body 20, driving the first vertical shaft 31 fixedly connected with the wave-absorbing floating body to move up/down. The first linkage shaft 32 moves up/down following the first vertical shaft 31. The first linkage shaft 32 drives the link 33 in a clockwise/counterclockwise rotational movement about the hinge point. The clockwise/counterclockwise rotation of the link 33 moves the second link shaft 35 upward/downward, and the second link shaft 35 moves the second vertical shaft 34 upward/downward. The second vertical shaft 34 drives the piston rod of the hydraulic cylinder 41 fixedly connected with the second vertical shaft to move upwards/downwards. Hydraulic oil is pumped into the accumulator. The mechanical transmission device formed by the first vertical shaft 31, the first linkage shaft 32, the connecting rod 33, the second linkage shaft 35, the second vertical shaft 34, the hydraulic cylinder 41 and the support 222 converts the mechanical energy of the reciprocating heave motion of the wave-absorbing floating body into the hydraulic energy of the hydraulic system, and amplifies the wave load borne by the wave-absorbing floating body based on the lever principle, so that the device can drive the hydraulic power generation system to work under small waves.
Through the wave-absorbing floating body with the optimized appearance, the wave-absorbing floating body motion is matched with the wave motion as much as possible to form an energy-gathering/resonance effect, so that the energy conversion efficiency is greatly improved. Based on the lever principle, the wave load is amplified, so that the device can drive the hydraulic power generation system to work under small waves, and the wave energy capturing range is improved. The control strategy of combined power generation of three groups of hydraulic circuits is adopted, and the problem of intermittent power generation of a power generation system under the condition of small waves is solved.
In the description of the present specification, a description referring to the terms "present embodiment," "some embodiments," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, the scope of the present invention is not limited thereto, and any changes or substitutions that do not undergo the inventive effort are intended to be included within the scope of the present invention; no element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such.