CN114893338A - Mooring device for outputting wave energy into stable electric energy based on hydraulic system - Google Patents

Mooring device for outputting wave energy into stable electric energy based on hydraulic system Download PDF

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Publication number
CN114893338A
CN114893338A CN202210468317.2A CN202210468317A CN114893338A CN 114893338 A CN114893338 A CN 114893338A CN 202210468317 A CN202210468317 A CN 202210468317A CN 114893338 A CN114893338 A CN 114893338A
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wave energy
hydraulic
power generation
suction anchor
mooring
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CN202210468317.2A
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CN114893338B (en
Inventor
杨立军
张西南
张一帆
韩益洲
朱玮晔
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12Adaptations 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
    • F03B13/14Adaptations 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
    • F03B13/16Adaptations 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"
    • F03B13/18Adaptations 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
    • F03B13/1885Adaptations 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 tied to the rem
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24Anchors
    • B63B21/26Anchors securing to bed
    • B63B21/27Anchors securing to bed by suction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/30Energy 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)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The invention provides a mooring device for outputting wave energy into stable electric energy based on a hydraulic system, which comprises a wave energy absorption device positioned at the top, a suction anchor positioned at the bottom and a floating box positioned in the middle, wherein the wave energy absorption device is fixedly connected with the suction anchor; the wave energy absorption device is used for absorbing and converting wave energy; a plurality of conversion and power generation devices are arranged in the wave energy absorption device, and each conversion and power generation device comprises a hydraulic motor and a power generator; the suction anchor is used for mooring; the conversion and power generation device penetrates through the suction anchor and is in transmission connection with the buoyancy tank. The mooring device and the power generation device are integrated, and the wave energy is stored in a potential energy mode, so that the occupation of the system on the ocean space is reduced, the mooring cost of the offshore platform is reduced, and the economy of the device is improved.

Description

Mooring device for outputting wave energy into stable electric energy based on hydraulic system
Technical Field
The invention relates to the technical field of ships and ocean engineering, in particular to a mooring device for outputting wave energy into stable electric energy based on a hydraulic system.
Background
The modern society develops rapidly, and the whole world increases the demand for energy, wherein the non-renewable energy occupies a large part, so that the global temperature rises year by year and the ecological environment is damaged. Therefore, the development of clean energy is not slow enough. In addition, as China has a large sea area and electricity utilization areas are concentrated in coastal economically developed areas in the east, the ocean contains abundant wave energy. Therefore, the development of wave energy power generation is vigorously carried out in China. However, wave energy is not stable, and converted electric energy is not easy to store, so that continuous power generation cannot be performed, and thus the wave energy is not well utilized. Furthermore, it is also a problem how to moor wave power plants safely and economically. In the aspect of new energy storage, a "gravity tower" energy storage device in switzerland provides a new idea for energy storage: the power generation is performed in a manner that a weight is lifted to a certain height by using unstable wind energy, and then the weight is released during power generation, so that gravitational potential energy is converted into electric energy.
The wave energy power generation device mainly depends on absorbing wave energy and converting the wave energy into electric energy for output, at present, part of patents adopt modes such as an oscillating water column type mode, an oscillating float type mode and a wave overtopping type mode to absorb the wave energy, and part of patents store the wave energy through modes such as hydraulic energy storage and reservoir water storage energy storage.
The prior Chinese patent with publication number CN113931786A discloses a hydraulic wave power generation device and an offshore wind wave power generation system, belonging to the field of renewable energy utilization, in order to solve the problem of full utilization of wave energy and further solve the problem of combined power generation of wind energy and wave energy, the key points are that each hydraulic buoy is horizontally arranged, the bottom surfaces of two adjacent hydraulic buoys are opposite, each group of hydraulic pumps are arranged in the hydraulic buoy positioned in the middle, the terminal of a plunger of one group of hydraulic pumps is connected to the bottom surface of the hydraulic buoy on the left side, the terminal of a plunger of the other group of hydraulic pumps is connected to the bottom surface of the hydraulic buoy on the right side, and the hydraulic output pipelines of the two groups of hydraulic pumps are connected to the pressure accumulator in different directions, one group of hydraulic output pipelines is connected to the pressure accumulator in the horizontal direction, and the other group of hydraulic output pipelines is connected to the pressure accumulator in the vertical direction.
The existing chinese patent publication No. CN212535916U discloses a wave energy power generation system integrated on a floating wind power base, which includes a hydraulic power generation device, a control system, and a tension mooring device, wherein when a floating body of the floating wind power base moves in waves, a hydraulic cylinder of the hydraulic power generation device is moved as a piston by tensioning a mooring rope, so as to push hydraulic oil of the hydraulic cylinder to circularly flow in a loop of the hydraulic power generation device, thereby realizing power generation of a generator in the hydraulic power generation device.
The existing Chinese patent with publication number CN113847188A discloses a water tower type wave energy power generation device and a method, and the device comprises: the underwater piston unit, the piston motion driving unit and the high-level energy storage power generation unit; the high-level energy storage power generation unit comprises a high-level water tower, a water turbine generator set, a water conduit and a return conduit; the piston motion driving unit comprises a power take-off buoy; the underwater piston unit comprises a piston pump cylinder, a piston is arranged in the piston pump cylinder in a lifting sliding sealing mode, and the axis of the piston is fixed with one end of a piston lifting traction cable; the other end of the piston lifting traction cable penetrates through the top sealing cover of the piston pump cylinder body in a sealing mode and is coaxially installed on the axis of the power take-off buoy.
The inventor thinks that part of patents cannot generate power continuously for the unstable characteristic of wave energy period; due to the limitation of an energy storage mode, part of the patents can only work in a specific place, so that certain potential safety hazard exists and the patents cannot be popularized; although some patents are not affected by the above problems to a certain extent, the stored energy is too small, and continuous power generation cannot be realized; and the project amount of partial patents is large, and the cost is high. The inventors therefore have identified a need to provide a more structurally sound device.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a mooring device for outputting wave energy into stable electric energy based on a hydraulic system.
According to the mooring device for outputting wave energy into stable electric energy based on the hydraulic system, provided by the invention, the mooring device comprises: the wave energy absorption device is positioned at the top, the suction anchor is positioned at the bottom, and the buoyancy tank is positioned in the middle, and the wave energy absorption device is fixedly connected with the suction anchor; the wave energy absorption device is used for absorbing and converting wave energy; a plurality of conversion and power generation devices are arranged in the wave energy absorption device, and each conversion and power generation device comprises a hydraulic motor and a power generator; the suction anchor is used for mooring; the conversion and power generation device penetrates through the suction anchor and is in transmission connection with the buoyancy tank.
Preferably, the wave energy absorbing device floats on the surface of seawater.
Preferably, the wave energy absorption device comprises a hydraulic cylinder, and a cylinder barrel of the hydraulic cylinder converts wave energy into hydraulic energy through piston motion.
Preferably, a rectifier valve and a hydraulic pipeline are further arranged inside the wave energy absorption device; the hydraulic cylinder is communicated with the rectifier valve, and the rectifier valve is communicated with the hydraulic motor through the hydraulic pipeline.
Preferably, a plurality of the conversion and power generation devices are symmetrically distributed on the periphery side of the rectifier valve.
Preferably, the conversion and power generation device comprises a fixed pulley, a gearbox and a connecting rod; the fixed pulley is arranged on the connecting rod; two ends of the connecting rod are in transmission connection with the hydraulic motor and the gearbox through pawls respectively, and the gearbox is in transmission connection with the generator.
Preferably, a steel wire rope is arranged on the fixed pulley; the suction anchor comprises a fixed pulley block; and the steel wire rope sequentially passes through the fixed pulley and the fixed pulley block from the conversion and power generation device and is connected to the buoyancy tank.
Preferably, a sensor is arranged on the suction anchor and is electrically connected with the hydraulic motor.
Preferably, the suction anchor comprises a cylinder, and a drainer and an exhaust valve are arranged at the top of the cylinder.
Preferably, the top of the cylinder body is sequentially provided with a retaining ring, a lifting hook and a tension rope;
the suction anchor is fixedly connected with the bottom surface of the platform of the wave energy absorption device through the tension rope.
Compared with the prior art, the invention has the following beneficial effects:
1. the mooring device and the power generation device are integrated, and the wave energy is stored in a potential energy mode, so that the occupation of the system on the ocean space is reduced, the mooring cost of the offshore platform is reduced, and the economy of the device is improved.
2. The invention moors by using the suction anchor, stores energy by using the buoyancy tank, and is beneficial to improving the application range of the device, thereby being beneficial to preventing the energy storage from being influenced by places.
3. The conversion and power generation devices are divided into two groups to alternately work, so that the overall working efficiency of the device is improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic view of the overall structure of a mooring device mainly embodying the present invention for outputting wave energy into stable electric energy based on a hydraulic system;
fig. 2 is a front view of a structure of a mooring device without a wave energy absorbing device embodying the present invention for outputting wave energy as stable electric energy based on a hydraulic system;
fig. 3 is a schematic view of the overall structure of a mooring device without a wave energy absorbing device, which mainly embodies the invention based on a hydraulic system to output wave energy as stable electric energy;
FIG. 4 is a schematic structural diagram of a hydraulic system embodying the present invention;
FIG. 5 is a schematic view of the overall structure of a power conversion and generation device according to the present invention;
FIG. 6 is a schematic view of the overall structure of a suction anchor embodying the present invention;
FIG. 7 is a schematic view of a connecting structure of a connecting rod and a hydraulic motor according to the present invention;
fig. 8 is a schematic view of a connecting structure of a connecting rod and a gearbox according to the present invention.
Shown in the figure:
wave energy absorption device 1 conversion and power generation device 2 suction anchor 3
Hydraulic pipeline 6 of float tank 4 rectifier valve 5
Fixed pulley 7 steel wire rope 8 hydraulic motor 9
Generator 10 gearbox 11 connecting rod 12
Pawl 13 drainer 14 exhaust valve 15
Retaining ring 16 fixed pulley block 17 cylinder 18
Hook 19 pull cord 20
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1 to 4, the mooring device for outputting wave energy into stable electric energy based on a hydraulic system provided by the invention comprises: the wave energy absorption device comprises a wave energy absorption device 1 positioned at the top, a suction anchor 3 positioned at the bottom and a buoyancy tank 4 positioned in the middle, wherein the wave energy absorption device 1 is fixedly connected with the suction anchor 3; the wave energy absorption device 1 is used for absorbing and converting wave energy; a plurality of conversion and power generation devices 2 are arranged in the wave energy absorption device 1, and any one conversion and power generation device 2 comprises a hydraulic motor 9 and a power generator 10; the suction anchor 3 is used for mooring; the conversion and power generation device 2 is in transmission connection with the buoyancy tank 4 through the suction anchor 3.
This application uses suction anchor 3 to moor, uses flotation tank 4 to carry out the energy storage, is applicable to various offshore platforms for the energy storage is not influenced by the place. The buoyancy potential energy provided by the seawater is used as an energy storage form, the characteristics of working in the sea are fully utilized, the cost is saved, and the extra buoyancy is provided for the whole device. The mooring device and the power generation device are combined into a whole, so that the occupation of the system to the ocean space is reduced, the mooring cost of the offshore platform can be effectively reduced, and the economy of the device is improved.
The wave energy absorption device 1 floats on the surface of seawater. The wave energy absorption device 1 floats on the seawater surface according to the design requirement, and the upper surface of the wave energy absorption device is slightly higher than the seawater surface. The platform can stably work in a sea area with wave energy distributed in a concentrated mode, and the wave energy can be absorbed as far as possible.
The wave energy absorption device 1 is internally provided with a plurality of conversion and power generation devices 2, a rectifier valve 5 and a hydraulic pipeline 6. The hydraulic motor 9 and the generator 10 are both arranged in the wave energy absorption device 1, so that the erosion of seawater and the impact of waves are reduced, and the wave energy absorption device is not easy to damage.
The wave energy absorption device 1 comprises a hydraulic cylinder, and a cylinder barrel of the hydraulic cylinder absorbs and converts wave energy into hydraulic energy through piston motion. The hydraulic cylinder of the wave energy absorption device 1 is communicated with the rectifier valve 5, and the rectifier valve 5 is communicated with the hydraulic motor 9 of the conversion and power generation device 2 through a hydraulic pipeline 6. When the cylinder barrel of the hydraulic cylinder does piston motion, hydraulic oil enters the rectifier valve 5 through the motion of the hydraulic cylinder and then enters each hydraulic motor 9 through the hydraulic pipeline 6.
As shown in fig. 5 and 6, the conversion and power generation device 2 comprises a fixed pulley 7, a gearbox 11 and a connecting rod 12; the fixed pulley 7 is arranged on the connecting rod 12; two ends of the connecting rod 12 are respectively in transmission connection with the hydraulic motor 9 and the gearbox 11 through the pawl 13, and the gearbox 11 is in transmission connection with the generator 10. A steel wire rope 8 is arranged on the fixed pulley 7; the suction anchor 3 comprises a fixed pulley block 17; the steel wire rope 8 is connected to the buoyancy tank 4 through the fixed pulley 7 and the fixed pulley block 17 in sequence from the conversion and power generation device 2.
The application adopts the suction anchor 3 to moor to be connected with power generation facility through the crown block 17 and wire rope 8. The mooring device and the power generation device are combined into a whole, so that the mooring cost of the offshore platform can be effectively reduced.
The pressing-down process of the buoyancy tank 4 is completed by the driving of the conversion and power generation device 2. When viewed from the right, the hydraulic motor 9 rotates the connecting rod 12 clockwise, so that the fixed pulley 7 rotates and the buoyancy tank 4 moves downward. At this time, the pawl 13 at the right end of the connecting rod 12 rotates around the shaft of the gearbox 11 and does not drive the generator 10 to rotate.
This application comes to store the wave energy that is difficult for the saving through the buoyancy potential energy of flotation tank 4, can effectual increase stored energy. The wave energy is stored in a potential energy mode and is released at a constant speed during power generation, so that the generator 10 is driven to realize the purpose, and the power generation is kept stable.
As shown in fig. 7 and 8, further, the power generation process is also performed by the conversion and power generation device 2. The suction anchor 3 is provided with a sensor which is electrically connected with the hydraulic motor 9. When the buoyancy tank 4 moves down to the lowest point, the sensor mounted on the suction anchor 3 sends a signal to stop the operation of the hydraulic motor 9, and the pawl 13 at the left end of the connecting rod 12 rotates by a certain angle so as not to contact the gear of the hydraulic motor 9. At this time, due to the effect of buoyancy, the buoyancy tank 4 moves upwards, the fixed pulley 7 is driven to rotate through the steel wire rope 8, and the connecting rod 12 rotates anticlockwise when being seen from the right side. When the connecting rod 12 rotates counterclockwise, the pawl 13 at the right end of the connecting rod 12 can drive the gearbox 11 to rotate, and the generator 10 generates electricity. The left pawl 13 rotates around the hydraulic motor 9 shaft and does not rotate in reverse.
The plurality of conversion and power generation devices 2 are symmetrically distributed on the periphery side of the rectifier valve 5. This application takes eight conversion and power generation facility 2 as an example, and eight conversion and power generation facility 2 divide into two sets on average, and a set of four, four conversion and power generation facility 2 are close to rectifier valve 5 and set up, and four conversion and power generation facility 2 keep away from rectifier valve 5 and set up. When four conversion and power generation devices 2 at the periphery perform the power generation process, the rectifier valve 5 provides power for the four conversion and power generation devices 2 at the middle part, so that the buoyancy tank 4 performs the pressing-down process. Similarly, when the middle four conversion and power generation devices 2 perform the power generation process, the rectifier valve 5 provides power for the four conversion and power generation devices 2 at the periphery, so that the buoyancy tank 4 performs the pressing-down process. Two sets of work in turn can avoid appearing the problem of wave energy electricity generation "empty window period", has reduced the waste of wave energy.
The suction anchor 3 comprises a cylinder 18, and a drainer 14 and an exhaust valve 15 are arranged on the top of the cylinder 18. The top of the cylinder 18 is sequentially provided with a retaining ring 16, a lifting hook 19 and a tension rope 20; the suction anchor 3 is fixedly connected with the bottom surface of the platform of the wave energy absorption device 1 through a tension rope 20.
Firstly, lifting the suction anchor 3, putting the suction anchor into water, and exhausting the water through the exhaust valve 15; after the suction anchor 3 reaches the seabed, the gravity anchor starts to penetrate under the action of the gravity. After the self-weight penetration is finished, the exhaust valve 15 is closed, water is drained outwards through the drainer 14, pressure difference is formed between the inside and the outside of the suction anchor 3, water pressure generated by the pressure difference acts on the anchor top, the suction anchor 3 is pressed into the sea bottom to a set depth, and mooring is finished.
This application utilizes flotation tank 4 to convert the wave energy into the mode of buoyancy potential energy and carries out the energy storage, has increased the stored energy to can realize the electricity generation of longer time, enable the stable output of electric energy. The mooring device is combined with the power generation device, so that the occupation of ocean space is reduced, the cost of the device is lower, and the device is more economical. Through the buoyancy effect of the seawater, the buoyancy tank 4 is used for storing energy, compared with gravity energy storage, the device is lower in cost, and a certain buoyancy support is provided for the whole system;
principle of operation
The wave energy absorption device 1 comprises a hydraulic cylinder, and a cylinder barrel of the hydraulic cylinder absorbs and converts wave energy into hydraulic energy through piston motion. The hydraulic cylinder of the wave energy absorption device 1 is communicated with the rectifier valve 5, and the rectifier valve 5 is communicated with the hydraulic motor 9 of the conversion and power generation device 2 through a hydraulic pipeline 6. When the cylinder barrel of the hydraulic cylinder does piston motion, hydraulic oil enters the rectifier valve 5 through the motion of the hydraulic cylinder and then enters each hydraulic motor 9 through the hydraulic pipeline 6. The pressing-down process of the buoyancy tank 4 is completed by the driving of the conversion and power generation device 2. When viewed from the right, the hydraulic motor 9 rotates the connecting rod 12 clockwise, so that the fixed pulley 7 rotates and the buoyancy tank 4 moves downward. At this time, the pawl 13 at the right end of the connecting rod 12 rotates around the shaft of the gearbox 11 and does not drive the generator 10 to rotate. Further, the power generation process is also completed by the conversion and power generation device 2. The suction anchor 3 is provided with a sensor which is electrically connected with the hydraulic motor 9. When the buoyancy tank 4 moves down to the lowest point, the sensor mounted on the suction anchor 3 sends a signal to stop the operation of the hydraulic motor 9, and the pawl 13 at the left end of the connecting rod 12 rotates by a certain angle so as not to contact the gear of the hydraulic motor 9. At this time, due to the effect of buoyancy, the buoyancy tank 4 moves upwards, the fixed pulley 7 is driven to rotate through the steel wire rope 8, and the connecting rod 12 rotates anticlockwise when being seen from the right side. When the connecting rod 12 rotates counterclockwise, the pawl 13 at the right end of the connecting rod 12 can drive the gearbox 11 to rotate, and the generator 10 generates electricity. The left pawl 13 rotates around the hydraulic motor 9 shaft and does not rotate in reverse.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. A mooring device for outputting wave energy as stable electric energy based on a hydraulic system, comprising: the wave energy absorption device comprises a wave energy absorption device (1) positioned at the top, a suction anchor (3) positioned at the bottom and a buoyancy tank (4) positioned in the middle, wherein the wave energy absorption device (1) is fixedly connected with the suction anchor (3);
the wave energy absorption device (1) is used for absorbing and converting wave energy;
a plurality of conversion and power generation devices (2) are arranged in the wave energy absorption device (1), and any one of the conversion and power generation devices (2) comprises a hydraulic motor (9) and a power generator (10);
the suction anchor (3) is used for mooring;
the conversion and power generation device (2) penetrates through the suction anchor (3) and is in transmission connection with the buoyancy tank (4).
2. Mooring device for outputting wave energy as stable electrical energy based on a hydraulic system according to claim 1, characterized in that the wave energy absorbing device (1) floats on the surface of the sea water.
3. Mooring device for outputting wave energy as stable electrical energy based on a hydraulic system according to claim 1, characterized in that the wave energy absorbing device (1) comprises a hydraulic cylinder, the cylinder of which converts wave energy into hydraulic energy by piston motion.
4. Mooring device for outputting wave energy as stable electric energy based on a hydraulic system according to claim 3, characterized in that the wave energy absorbing device (1) is internally provided with a rectifier valve (5) and a hydraulic conduit (6);
the hydraulic cylinder is communicated with the rectifier valve (5), and the rectifier valve (5) is communicated with the hydraulic motor (9) through the hydraulic pipeline (6).
5. Mooring device for outputting wave energy as stabilised electrical energy based on a hydraulic system, according to claim 4, characterised in that a plurality of said conversion and power generation means (2) are symmetrically distributed around the side of said rectifying valve (5).
6. Mooring device for outputting wave energy as stabilised electrical energy based on a hydraulic system according to claim 1, characterised in that the conversion and power generation device (2) comprises a fixed pulley (7), a gearbox (11) and a connecting rod (12);
the fixed pulley (7) is arranged on the connecting rod (12);
two ends of the connecting rod (12) are in transmission connection with the hydraulic motor (9) and the gearbox (11) through pawls (13), and the gearbox (11) is in transmission connection with the generator (10).
7. Mooring device for outputting wave energy as stable electrical energy based on a hydraulic system according to claim 1, characterized in that a wire rope (8) is arranged on the fixed pulley (7);
the suction anchor (3) comprises a fixed pulley block (17);
and the steel wire rope (8) sequentially passes through the fixed pulley (7) and the fixed pulley block (17) from the conversion and power generation device (2) and is connected to the buoyancy tank (4).
8. Mooring device for outputting wave energy as stabilised electrical energy based on a hydraulic system, according to claim 1, characterised in that the suction anchor (3) is provided with a sensor, which is electrically connected to the hydraulic motor (9).
9. Mooring device for outputting wave energy as stabilised electrical energy based on a hydraulic system, according to claim 1, characterised in that the suction anchor (3) comprises a cylinder (18), the top of the cylinder (18) being provided with a drainer (14) and a vent valve (15).
10. Mooring device for outputting wave energy as stabilised power, according to claim 9, characterised in that the top of the cylinder (18) is provided in sequence with a retaining ring (16), a hook (19) and a tension rope (20);
the suction anchor (3) is fixedly connected with the bottom surface of the platform of the wave energy absorption device (1) through the tension rope (20).
CN202210468317.2A 2022-04-29 2022-04-29 Mooring device for outputting wave energy into stable electric energy based on hydraulic system Active CN114893338B (en)

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CN104061115A (en) * 2014-07-03 2014-09-24 国家海洋技术中心 Floating type multi-floater wave power generation device
CN209687648U (en) * 2019-01-03 2019-11-26 赵振同 A kind of Wave power generation device of popular style
CN111810348A (en) * 2020-07-28 2020-10-23 明阳智慧能源集团股份公司 Wave energy power generation system integrated on floating type wind power foundation and working method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2009213031A1 (en) * 2009-09-10 2011-03-24 Kingston, William Mr Tideway anchor
TW201116711A (en) * 2009-11-09 2011-05-16 Anadarko Petroleum Corp Fin-ring propeller for a water current power generation system
CN104061115A (en) * 2014-07-03 2014-09-24 国家海洋技术中心 Floating type multi-floater wave power generation device
CN209687648U (en) * 2019-01-03 2019-11-26 赵振同 A kind of Wave power generation device of popular style
CN111810348A (en) * 2020-07-28 2020-10-23 明阳智慧能源集团股份公司 Wave energy power generation system integrated on floating type wind power foundation and working method thereof

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