CN107989739B - Wave energy power generation device and wave energy power generation system - Google Patents
Wave energy power generation device and wave energy power generation system Download PDFInfo
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- CN107989739B CN107989739B CN201711216697.6A CN201711216697A CN107989739B CN 107989739 B CN107989739 B CN 107989739B CN 201711216697 A CN201711216697 A CN 201711216697A CN 107989739 B CN107989739 B CN 107989739B
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- 238000010248 power generation Methods 0.000 title claims abstract description 74
- 238000007667 floating Methods 0.000 claims abstract description 31
- 238000004146 energy storage Methods 0.000 claims abstract description 29
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- 239000012530 fluid Substances 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 32
- 238000001514 detection method Methods 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 abstract description 8
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
- F03B13/1805—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem
- F03B13/181—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem for limited rotation
- F03B13/1815—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem for limited rotation with an up-and-down movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
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- H02J3/382—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention relates to a wave energy power generation technology, and particularly discloses a wave energy power generation device and a wave energy power generation system, wherein the power generation device comprises: the device comprises a base part, a rotating part, a swing arm, a floating body, a hydraulic energy storage part and a hydraulic power generation module, wherein the base part is positioned in a suitable sea area; the rotating piece is rotatably assembled on the base piece; the swing arm is rotatably connected to the rotating part at the middle part, two ends of the swing arm are respectively connected with the floating bodies, and the swing shaft of the swing arm is positioned on the water surface or slightly higher than the water surface; one end of the hydraulic energy storage part is connected to one side of the swing arm, the other end of the hydraulic energy storage part is connected to the rotating part, and the hydraulic energy storage part is connected to the hydraulic power generation module through a hydraulic pipeline; the waves drive the two floating bodies of the swing arm to move up and down, so that the swing arm is driven to swing in a reciprocating mode, the reciprocating swing of the swing arm presses the hydraulic energy storage piece, and high-pressure fluid is pumped to the hydraulic power generation module to generate power. The invention has simple and reliable structure and improves the energy conversion rate.
Description
Technical Field
The invention relates to a wave energy power generation technology in general, and particularly relates to a wave energy power generation device and a wave energy power generation system.
Background
In the aspect of ocean energy development and utilization, active exploration is carried out in various countries, the current wave energy power generation device is not completely commercialized, most of the wave energy power generation device is in a test stage, and the energy conversion efficiency is limited. In addition, because waves have unstable motion characteristics and destructiveness, the floating body can collect energy and work in a sea state with great change, and therefore, how to safely and efficiently capture and convert wave energy is a great problem faced by the wave energy power generation technology.
Disclosure of Invention
The invention has a main purpose of overcoming at least one of the defects of the prior art and providing a wave energy power generation device and a wave energy power generation system, so that the wave energy power generation device has high energy conversion rate and simple and reliable structure.
In order to achieve the purpose, the invention adopts the following technical scheme: a wave energy electric power generation device comprising: the device comprises a base part, a rotating part, a swing arm, a floating body, a hydraulic energy storage part and a hydraulic power generation module, wherein the base part is positioned in a suitable sea area; the rotating piece is rotatably assembled on the base piece; the swing arm is rotatably connected to the rotating part at the middle part, the floating bodies are respectively connected to two ends of the swing arm, and a swing shaft of the swing arm is positioned on the water surface or slightly higher than the water surface; one end of the hydraulic energy storage part is connected to one side of the swing arm, the other end of the hydraulic energy storage part is connected to the rotating part, and the hydraulic energy storage part is connected to the hydraulic power generation module through a hydraulic pipeline; the waves drive the two floating bodies of the swing arm to move up and down so as to drive the swing arm to swing in a reciprocating manner, and the reciprocating swing of the swing arm applies pressure to the hydraulic energy storage piece so as to pump high-pressure fluid to the hydraulic power generation module to generate power.
According to an embodiment of the present invention, an angle adjusting mechanism is disposed between the rotating member and the base member, and an angle of the swing arm with respect to a wave direction is controlled by the angle adjusting mechanism.
According to an embodiment of the present invention, the angle adjusting mechanism includes a driving portion and a driving coupling member, the driving portion is fixed to the rotating member or the base member, and the driving portion drives the rotating member to adjust the angle through the driving coupling member.
According to an embodiment of the present invention, the top of the base member has a supporting body, the rotating member is rotatably sleeved outside the supporting body through a bearing, and the rotating member and the supporting body are sleeved in a conical surface manner with a smaller upper part and a larger lower part; the angle adjusting mechanism is disposed between the rotating member and the supporting member.
According to an embodiment of the invention, the swing arm is aligned with the direction of the waves of the applicable waters.
According to an embodiment of the invention, the swing arm has at least two parallel shafts, the two shafts are symmetrically positioned at two sides of the rotating piece, the two shafts are connected to the rotating piece through a bearing piece, and two ends of the two shafts are connected to the floating body.
According to an embodiment of the present invention, wherein the shaft is of a truss structure.
According to an embodiment of the present invention, the swing arm is an extendable structure, and the swing arm is further provided with a telescopic driving mechanism to adjust the length of the swing arm according to the wavelength change of the applicable sea wave.
According to an embodiment of the present invention, the swing arm is a telescopic extendable structure, and the telescopic driving mechanism is disposed inside the telescopic extendable structure of the swing arm.
According to another aspect of the invention, a wave energy power generation system is further provided, which comprises a plurality of wave energy power generation devices as described above, at least one detection device and a control system, wherein the plurality of wave energy power generation devices are arranged in a power generation sea area at intervals, the detection device is used for measuring wave parameters and environmental parameters of the power generation sea area, and the control system is used for receiving the wave parameters and the environmental parameters.
According to the technical scheme, the wave energy power generation system and the power generation device thereof have the advantages and positive effects that: the swing arm can rotate in any direction by arranging the rotating part, so that the swing arm is consistent with the advancing direction of waves, the wave energy utilization range is greatly improved, the device runs stably, and the device can adapt to larger sea conditions. The floating bodies are arranged at the two ends of the swing arm, so that the swing arm can be fluctuated twice by the fluctuation of one wave, and the efficiency of energy conversion is improved. The invention has simple principle and simple and reliable structure, effectively reduces the use and maintenance cost and can effectively improve the service life of the invention.
Drawings
Various objects, features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:
fig. 1 is a schematic perspective view of a wave energy power generation device according to an exemplary embodiment.
Fig. 2 is a schematic front view of a wave energy power generation assembly according to an exemplary embodiment.
Fig. 3 is an enlarged, partially cut-away, schematic illustration of a wave energy power plant according to an exemplary embodiment.
Fig. 4 is a schematic view of the overall structure of a base member of a wave energy power generation device according to an exemplary embodiment.
Fig. 5 is a schematic top view of a wave energy power generation assembly according to an exemplary embodiment.
Fig. 6 is a schematic, partly in section, of a wave energy power plant according to another exemplary embodiment.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
The invention provides a wave power generation device, comprising: the hydraulic power generation device comprises a base part 1, a rotating part 2, a swing arm 3, a floating body 4, a hydraulic energy storage part 5 and a hydraulic power generation module (not shown in the figure).
Fig. 1 is a schematic perspective view of a wave energy power generation device according to an exemplary embodiment. Fig. 2 is a schematic front view of a wave energy power generation assembly according to an exemplary embodiment.
As shown in fig. 1 and 2, the foundation member 1 can be positioned in a suitable sea area. The base member 1 may be provided in a cylindrical shape, and the inside thereof may be used to house a hydraulic power generation module (not shown in the drawings). The top part 11 of the foundation element 1 can be used for mounting the rotor 2 and the bottom part 12 can be arranged in a fixed manner on the seabed in the manner of a pile. Of course, the specific form of the base member 1 is not limited thereto, and for example, it may be provided in the form of a truss, and the hydraulic power generating module has a sealed housing, and the housing is fixedly mounted on the base member 1, so that it can be understood by those skilled in the art that the base member may be modified in many ways as long as it can provide fixing conditions for the rotating member and the hydraulic power generating module, and the base member and the hydraulic power generating module are within the technical scope of the present disclosure.
As shown, the rotation member 2 is rotatably assembled to the base member. The rotating member 2 may be arranged in a sleeve type corresponding to the base member 1, and is rotatably sleeved on the base member 1. In use, the rotor 2 may be wholly or partially above the water surface, and the invention is not limited thereto. It will be understood by those skilled in the art that the rotating member 2 is not limited thereto, as long as the rotating member can be rotatably connected to the base member 1 and the swing arm 3 can be provided.
As shown in the figure, the swing arm 3 is rotatably connected to the rotating member 2 at the middle part, the floating bodies 4 are respectively connected to the two ends of the swing arm 3, and the swing shaft 31 of the swing arm 3 is positioned on the water surface or slightly higher than the water surface; one end of the hydraulic energy storage part 5 is connected to one side of the swing arm 3, the other end of the hydraulic energy storage part is connected to the rotating part 2, and the hydraulic energy storage part 5 is connected to the hydraulic power generation module through a hydraulic pipeline; the waves drive the two floating bodies 4 of the swing arm 3 to move up and down, so that the swing arm 3 is driven to swing in a reciprocating mode, the reciprocating swing of the swing arm presses the hydraulic energy storage part 5, and high-pressure fluid is pumped to the hydraulic power generation module to generate power. Specifically, the swing arm 3 may be mounted on the rotating member 2 through the swing shaft 31, and the swing shaft 31 may be located in the middle of the entire swing arm 3, but the present invention is not limited thereto, and in some special seas, the swing shaft 31 may also be disposed at a position other than the middle of the swing arm 3, that is, the lengths of the swing arm 3 relative to the two sides of the base member 1 are not equal, so that the present invention may be adapted to more special seas, so as to improve the applicability of the present invention. The swing shaft 31 may be located on the water surface or slightly above the water surface, and the specific setting mode may refer to parameters such as the height of the sea waves and the traveling speed, and the like, and those skilled in the art may adjust the swing shaft according to the actual application scenario, which is not limited to this.
The floating body 4 can be a hollow cylindrical structure formed by splicing steel plates, and a plurality of reinforcing frameworks which are arranged in a criss-cross mode can be selected to be arranged in the large-size floating body 4. The floating bodies 4 are respectively arranged at two ends of the swing arm 3, and the concrete connection mode of the floating bodies and the swing arm can be realized in a detachable or welded mode so that the floating bodies 4 can be replaced. The floating body 4 can also be made of a small material with lower filling density so as to prevent the floating body 4 from entering water. The floating body 4 adopts a cylindrical structure, which is beneficial to the wave to facilitate the water flow to continue flowing after the wave applies work to the floating body 4. However, it should be noted that the floating body 4 may be variously modified and fall within the technical scope of the present invention. The hydraulic energy storage members 5 may be specifically two and are respectively disposed on two sides of the base member 1, but the present invention is not limited to the specific number thereof, and a plurality of hydraulic energy storage members may be respectively disposed on two sides of the base member 1, or may be disposed on one side of the base member 1, and those skilled in the art can adjust the hydraulic energy storage members according to the actual application environment. In an embodiment of the present invention, the hydraulic energy storage member 5 may be a hydraulic cylinder, an end of a telescopic rod of the hydraulic energy storage member is pivotally connected to the swing arm 3, an end of a cylinder body is pivotally connected to the rotating member 2, and the hydraulic energy storage member 5 is detachably connected to the swing arm 3 and the rotating member 2, so as to facilitate subsequent maintenance and repair operations.
In actual use, the wave can drive two bodies 4 of the swing arm 3 to move up and down, so that the swing arm 3 is driven to swing back and forth, the hydraulic energy storage piece 5 is pressed by the back and forth swing of the swing arm 3, high-pressure fluid is pumped to the hydraulic power generation module to generate power, and the hydraulic power generation module can be a hydraulic power generator. Because the swing arm 3 is arranged along the wave advancing mode, the hydraulic energy storage parts 5 on two sides of the base part 1 can be driven by one wave to do work twice, the utilization rate of wave energy is high, the structure is simple, the use and maintenance cost is greatly saved, and the energy conversion rate is also improved. In addition, the rotating piece 2 is arranged, so that the dynamic adjustment can be carried out according to the advancing direction of the waves, the arrangement mode of the swing arm 3 is always consistent with the advancing direction of the waves, the energy conversion efficiency is further improved, and the economic benefit is further improved.
In the embodiment of the invention, the swing arm 3 and the floating body 4 are preferably arranged in a symmetrical mode, so that wave loads borne by two ends of the swing arm 3 can be offset, the load action borne by the base part 1 is reduced, the service life of equipment is prolonged, and long-term deployment in a sea area can be ensured. Compared with the wave energy power generation device with an asymmetric floating body structure in the prior art, the wave energy power generation device can be only deployed on one side of a near-shore or large-scale platform.
Fig. 3 is an enlarged, partially cut-away, schematic illustration of a wave energy power plant according to an exemplary embodiment. Fig. 4 is a schematic view of the overall structure of a base member of a wave energy power generation device according to an exemplary embodiment.
In an embodiment of the present invention, an angle adjusting mechanism 6 is disposed between the rotating member 2 and the base member 1, and the angle of the swing arm 3 relative to the wave direction is controlled by the angle adjusting mechanism 6. As shown in fig. 3, the angle adjusting mechanism 6 may be two or more and oppositely disposed inside the base member 1. The angle adjusting mechanism 6 is in transmission connection with the rotating part 2 to drive and adjust the angle of the rotating part 2, so that the wave advancing modes of the swing arm and the water area are kept consistent. By arranging the angle adjusting mechanism 6, the invention can realize automatic adjustment of the angle of the swing arm 3, so that the swing arm 3 can freely rotate within the range of 360 degrees, wave energy in any direction can be fully utilized, the utilization rate of ocean energy is improved, and the automatic control of the invention is realized.
However, the present invention is not limited to the specific number and installation manner of the angle adjusting mechanisms 6, and various modifications of the angle adjusting mechanisms are possible and are included in the technical scope of the present invention. For example, only one angle adjustment mechanism may be provided, and the angle of the rotating member may be adjusted on both the inner side and the outer side of the base member, which is not described herein.
In an embodiment of the present invention, the angle adjusting mechanism 6 includes a driving part 61 and a driving coupling part 62, the driving part 61 is fixed to the rotating part 2 or the base part 1, and the driving part 61 drives the rotating part 2 to adjust the angle through the driving coupling part 62. As shown in fig. 3, the driving part 61 may be specifically an electric motor, which may be fixedly disposed inside the base member 1, and a gear is disposed on an output shaft of the driving part 61, and the gear is partially exposed outside the base member 1 and is in transmission connection with the driving coupling member 62. The corresponding driving coupling element 62 may be a circular rack, and is fixedly disposed on the inner wall of the rotating element 2 along the circumferential direction, or the driving coupling element 62 may be integrally formed on the inner wall of the rotating element 2, and the driving portion 61 and the driving coupling element 62 adjust the angle of the rotating element 2 by means of gear engagement. However, the present invention is not limited to the above-described mounting and driving method, and the driving portion and the driving coupling may be variously modified and are included in the technical scope of the present invention.
In an embodiment of the present invention, the top 11 of the base member 1 has a supporting body 13, the rotating member 2 is rotatably sleeved outside the supporting body 13 through a bearing 21, and the two are sleeved in a conical surface manner with a small upper part and a big lower part; the angle adjustment mechanism 6 is disposed between the rotor 2 and the support body 13. As shown in fig. 3-4, the top 11 of the base member 1 has a tapered support 13 with a small top and a large bottom, which can be formed integrally with the base member 1, or can be a split design, and the invention is not limited thereto. The rotating member 2 is designed corresponding to the shape of the supporting member 13, and is sleeved outside the supporting member 13, and bearings 21 may be disposed at the top and the bottom of the inside of the rotating member 2, and the bearings 21 may be selected as sliding bearings. The angle adjusting mechanism 6 may be provided in the supporting body 13 to adjust the angle of the rotation member 2. However, the present invention is not limited to the specific installation position of the angle adjustment mechanism, and may be installed between the rotating member and the supporting body 13.
Fig. 5 is a schematic top view of a wave energy power generation assembly according to an exemplary embodiment.
In an embodiment of the present invention, the swing arm 3 may be optionally provided with at least two parallel rods 33, the two rods 33 are symmetrically located at both sides of the rotating member 2, both the rods 33 are connected to the rotating member 2 through a bearing member 32, and both ends of both the rods 33 are connected to the floating body 4. In addition, the two shafts 33 of the swing arm 3 may also be respectively located at the upper and lower sides of the rotating member 2, and the middle portion of the swing arm may be fixedly connected to the bearing member 32, and the specific connection manner may be welding or screwing, and the like. A reinforcing bar 34 may be further provided between the two shafts 33 for reinforcing the strength of the swing arm 3. The two reinforcing rods 34 are respectively arranged on two sides of the rotating part 2, and not only can be used for reinforcing the strength of the swing arm 3, but also the end part of the hydraulic energy storage part 5 can be connected to the reinforcing rods 34. Two floats 4 set up respectively in the both ends of controlling of two poles of the body, and the both ends of two poles of the body 33 all are connected in float 4, further strengthen the bulk strength of swing arm. It should be noted that the swing arm 3 may have various modifications, and all fall within the technical scope of the present invention. The swing arm is provided with two or more rod bodies, so that the weight of the swing arm can be effectively reduced, and the strength of the swing arm can be improved.
Referring to fig. 1 and 5, in an embodiment of the present invention, the shaft 33 may have a truss structure. Specifically, the shaft 33 may include a first shaft 331 and a second shaft 332. The first rods 331 may be four rods arranged in parallel between the bearing member 32 and the floating body 4, and the cross-sectional shape of the first rods may be a rectangular structure or other structures, which is not limited in the present invention. The second rod 332 may be disposed between two adjacent first rods 331, and may be perpendicular to the first rods 331 or at an angle with respect to the first rods 331, which is not limited in the present invention. The bar body 33 adopts a truss structure, so that the swing arm 3 can bear larger axial tension or pressure, the strength of materials can be fully utilized, the materials can be saved when the span of the swing arm 3 is larger, the self weight of the swing arm 3 can be reduced, and the rigidity can be increased.
In one embodiment of the present invention, the first rod 331 and the second rod 332 may be made of steel, preferably seamless tubular structure made of 20# or 10# material, but may be made of other materials with sufficient strength. The first rod 331 and the second rod 332 are preferably tubular in shape, and may be, for example, square tubes, circular tubes, or elliptical tubular structures. In a preferred embodiment of the present invention, the tube diameter of the second rod 332 is smaller than that of the first rod 331, so as to further save materials and reduce the self weight of the swing arm 3. It should be understood that the present invention is not limited to the specific material and shape of the first rod 331 and the second rod 332, as long as the setting conditions of strength, corrosion resistance, etc. can be satisfied, and those skilled in the art can adjust the material and shape according to the actual situation.
Fig. 6 is a schematic, partly in section, of a wave energy power plant according to another exemplary embodiment.
In an embodiment of the present invention, the swing arm 3 is an extendable structure, and the swing arm 3 is further provided with a telescopic driving mechanism 37 to adjust the length of the swing arm 3 according to the wavelength change of the applicable sea wave. The telescopic driving mechanism 37 may be implemented by a rack gear or a hydraulic cylinder to adjust the length of the swing arm 3, and may be disposed inside the swing arm 3, but the present invention is not limited thereto, and those skilled in the art may adjust the length according to actual situations. The main purpose of designing the telescopic driving mechanism is that when the sea state changes (namely the wave wavelength changes), the length of the swing arm can be adjusted by adjusting the telescopic driving mechanism so as to adapt to different sea states and optimize the energy conversion efficiency. The length of the swing arm 3 is controlled to avoid the same wavelength as the waves in the applicable water area.
In an embodiment of the present invention, the swing arm 3 may be a telescopic extendable structure, and the telescopic driving mechanism 37 is disposed inside the telescopic extendable structure of the swing arm 3. As shown in fig. 6, the swing arm 3 may include a support arm 35 and two telescopic arms 36. The middle part of the supporting arm 35 is rotatably connected to the rotary member 2 via the swing shaft 31, part or all of the two telescopic arms 36 can be inserted into the supporting arm 35, and the exposed end part thereof is connected to the floating body 4. The telescopic driving mechanism 37 is disposed inside the support arm 35 and the telescopic arm 36, and both ends thereof are connected to the inner walls of the support arm 35 and the telescopic arm 36, respectively. The telescopic driving mechanism 37 may be a hydraulic cylinder, and the hydraulic power thereof may be provided by a hydraulic oil pump disposed in the swing arm 3, which will not be described herein. Adopt above-mentioned design, not only can realize the adjustment of swing arm length, moreover because the inside hollow structure that is of swing arm, can also effectively reduce the dead weight of swing arm, still can provide installation space for telescopic drive mechanism 37 when save material, its structural design is simple reasonable.
In an embodiment of the present invention, there is also provided a wave energy power generation system, which may have a plurality of wave energy power generation devices according to the above embodiments, at least one detection device and a control system, wherein the plurality of wave energy power generation devices are arranged in a power generation sea area at intervals, the detection device measures wave parameters and environmental parameters of the power generation sea area, and the control system receives the wave parameters and the environmental parameters. Particularly, in a certain sea area, can arrange a plurality of this wave power generation set, realize the cogeneration, when arranging wave power generation set, detection device specifically can be a buoy, surveys the propagation direction of wave through the buoy, and detection device transmits the wave signal to control system on the shore, and the managers on the shore carries out the position adjustment to a plurality of wave power generation set simultaneously through control system according to the wave signal. Of course, the orientation adjustment may be automatically controlled by the controller according to a program, and the variation of the power generation amount of the power generation device may be used as reference data for the automatic control by the controller.
According to the technical scheme, the wave energy power generation system and the power generation device thereof have the advantages and positive effects that: the swing arm can rotate in any direction by arranging the rotating part, so that the swing arm is consistent with the advancing direction of waves, the wave energy utilization range is greatly improved, the device runs stably, and the device can adapt to larger sea conditions. The floating bodies are arranged at the two ends of the swing arm, so that the swing arm can be fluctuated twice by the fluctuation of one wave, and the efficiency of energy conversion is improved. The invention has simple principle and simple and reliable structure, effectively reduces the use and maintenance cost and can effectively improve the service life of the invention.
It is to be understood that the various examples described above may be utilized in various orientations (e.g., inclined, inverted, horizontal, vertical, etc.) and in various configurations without departing from the principles of the present invention. The embodiments illustrated in the drawings are shown and described merely as examples of useful applications of the principles of the invention, which is not limited to any specific details of these embodiments.
Of course, once the above description of representative embodiments is considered in great detail, those skilled in the art will readily appreciate that many modifications, additions, substitutions, deletions, and other changes may be made to these specific embodiments, and such changes are within the scope of the principles of the present invention. Therefore, the foregoing detailed description is to be clearly understood as being given by way of illustration and example only, the spirit and scope of the present invention being limited solely by the appended claims and their equivalents.
Claims (7)
1. A wave energy electric power generation device, comprising: a base part, a rotating part, a swing arm, a floating body, a hydraulic energy storage part and a hydraulic power generation module,
the foundation member is positioned in a suitable sea area;
the rotating piece is rotatably assembled on the base piece;
the swing arm is rotatably connected to the rotating part at the middle part, the floating bodies are respectively connected to two ends of the swing arm, and a swing shaft of the swing arm is positioned on the water surface or slightly higher than the water surface;
one end of the hydraulic energy storage part is connected to one side of the swing arm, the other end of the hydraulic energy storage part is connected to the rotating part, and the hydraulic energy storage part is connected to the hydraulic power generation module through a hydraulic pipeline;
the waves drive the two floating bodies of the swing arm to move up and down so as to drive the swing arm to swing in a reciprocating manner, and the reciprocating swing of the swing arm applies pressure to the hydraulic energy storage piece so as to pump high-pressure fluid to the hydraulic power generation module to generate power;
an angle adjusting mechanism is arranged between the rotating part and the base part, the angle of the swing arm relative to the wave direction is controlled through the angle adjusting mechanism, the angle adjusting mechanism comprises a driving part and a driving connecting part, the driving part is fixed on the rotating part or the base part, and the driving part drives the rotating part to adjust the angle through the driving connecting part;
the top of the basic part is provided with a supporting body, the rotating part is rotatably sleeved outside the supporting body through a bearing, and the rotating part and the supporting body are sleeved in a conical surface matching mode with a small upper part and a big lower part; the angle adjusting mechanism is disposed between the rotating member and the supporting member.
2. The wave energy power generation device of claim 1, wherein the swing arm is aligned with the applicable water area wave direction.
3. The wave energy generation device of claim 1, wherein the swing arm has at least two parallel shafts, two of the shafts being symmetrically located on either side of the rotating member, both of the shafts being connected to the rotating member by a bearing member, both of the shafts being connected at both ends to the float.
4. The wave energy power generation device of claim 3, wherein the shaft is of truss-like construction.
5. The wave energy power generation device of claim 1, wherein the swing arm is of an extendable structure and is further provided with a telescopic drive mechanism to adjust the length of the swing arm according to changes in the wave wavelength of the applicable sea area.
6. The wave energy power generation device of claim 5, wherein the swing arm is of telescopic extendible construction, the telescopic drive mechanism being disposed within the telescopic extendible construction of the swing arm.
7. A wave energy power generation system having a plurality of wave energy power generation devices according to any one of claims 1 to 6, at least one detection device and a control system, the plurality of wave energy power generation devices being spaced apart in a power generation sea area, the detection device determining wave parameters and environmental parameters of the power generation sea area, and the control system receiving the wave parameters and environmental parameters.
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| CN101725453B (en) * | 2010-01-14 | 2012-07-04 | 杭州海聚动力科技有限公司 | Novel wave energy generating system |
| CN102128126A (en) * | 2010-01-19 | 2011-07-20 | 王谢林 | Device capable of converting lumpy high-low water head potential energy difference into mechanical kinetic energy |
| CN102168642B (en) * | 2011-06-02 | 2012-10-10 | 山东大学 | Oscillatory type tidal power generation device |
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