CN218817293U - Movable multi-degree-of-freedom wave power generation device - Google Patents
Movable multi-degree-of-freedom wave power generation device Download PDFInfo
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- CN218817293U CN218817293U CN202320031806.1U CN202320031806U CN218817293U CN 218817293 U CN218817293 U CN 218817293U CN 202320031806 U CN202320031806 U CN 202320031806U CN 218817293 U CN218817293 U CN 218817293U
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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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Abstract
The utility model provides a movable multi-degree-of-freedom wave energy power generation device, which comprises a spherical shell oscillating floater, a machine room, a plurality of hydraulic cylinder connecting arms and an oil path system, wherein the spherical shell oscillating floater is mounted in the machine room in a suspension manner by the plurality of hydraulic cylinder connecting arms, each hydraulic cylinder connecting arm is formed by connecting a spherical hinge and a flange type double-acting hydraulic cylinder, the other end of the spherical hinge is connected with the spherical shell oscillating floater, the other end of the flange type double-acting hydraulic cylinder is connected with the inner wall surface of the machine room, and the oil path system comprises a one-way valve, an energy accumulator, a hydraulic motor, a generator and an oil tank; it can be mounted on a moving hull or suspended solely on the sea surface, so that it is mobile, can capture wave energy far off shore, and can capture wave energy in multiple degrees of freedom.
Description
Technical Field
The utility model relates to an ocean energy utilization technical field, concretely relates to movable multi freedom wave energy power generation facility.
Background
With the problems of traditional energy shortage, environmental deterioration and global warming becoming more serious, the development and utilization of renewable energy becomes more important.
Wave energy is the kinetic energy and potential energy of ocean surface waves, is one of the most main ocean energy sources, has the advantages of cleanness, no pollution, large energy flow density, wide distribution and the like, and is an inexhaustible energy source which is convenient to directly utilize. In the research of ocean energy utilization, wave energy is widely concerned by countries in the world.
Wave motion exists in multiple degrees of freedom, most of existing wave energy utilization devices can only capture energy of wave energy in one degree of freedom, and the energy utilization rate is low; in addition, most of the existing wave energy capturing devices cannot be moved, or are fixed on the seabed or an offshore platform, and cannot enter deep sea to utilize wave energy. Therefore, the device for capturing wave energy in multiple degrees of freedom, which is movable, is urgently needed to be developed to solve the problem of insufficient utilization of wave energy.
SUMMERY OF THE UTILITY MODEL
Based on the above object, the utility model provides a movable multi freedom wave energy power generation facility, it can install at the hull that moves or suspend in the sea alone to catch the wave energy of keeping away from the coast in the removal process, and can catch the wave energy in the multiple degree of freedom.
The utility model adopts the technical scheme as follows: a movable multi-degree-of-freedom wave energy power generation device comprises a spherical shell oscillating floater, a machine room, a plurality of hydraulic cylinder connecting arms and an oil circuit system, wherein the spherical shell oscillating floater is mounted in the machine room in a hanging mode through the plurality of hydraulic cylinder connecting arms; the spherical hinge enables the angle of the hydraulic cylinder connecting arm to be variable, the flange type double-acting hydraulic cylinder enables the length of the hydraulic cylinder connecting arm to be variable, and therefore the multi-degree-of-freedom suspension of the spherical shell oscillating floater is supported in a machine room which is a room on a ship body or a hollow shell structure capable of floating on the sea surface, for example, the machine room is used as a shell of the ship body; the shape of the spherical shell oscillating floater can be adaptively adjusted according to the machine room.
The oil circuit system comprises a one-way valve, an energy accumulator, a hydraulic motor, a generator and an oil tank, wherein the cylinder body is divided into two cavities on two sides of the piston by an internal piston of the flange type double-acting hydraulic cylinder, hydraulic oil inlets of the two cavities on two sides of the piston are communicated with the oil tank through pipelines, the one-way valve is arranged on a hydraulic oil inlet pipeline, hydraulic oil outlets of the two cavities on two sides of the piston are communicated with the energy accumulator through pipelines, the one-way valve is also arranged on a hydraulic oil outlet pipeline, and the hydraulic oil can only flow in the direction from the oil tank to the energy accumulator through the one-way valve; the hydraulic motor is connected in series on a pipeline between the oil tank and the energy accumulator, and the hydraulic motor drives the generator to generate electricity when rotating.
Specifically, the hydraulic cylinder connecting arms include three, and the three hydraulic cylinder connecting arms suspend the spherical shell oscillating floater in the machine room in a 90-degree manner (i.e., according to the position relationship of XYZ coordinate axes in a cartesian coordinate system).
Furthermore, the oil circuit system further comprises a pressure control valve, the pressure control valve is connected between the hydraulic motor and the energy accumulator in series, and the pressure control valve is opened after hydraulic oil in the energy accumulator reaches a set pressure. The oil circuit system further comprises an overflow valve, the overflow valve is connected with the hydraulic motor in parallel through a pipeline, the overflow valve controls the hydraulic oil pressure to be lower than the pressure threshold of the oil circuit, and the overpressure hydraulic oil directly flows back to the oil tank from the overflow valve to avoid damaging the oil circuit.
Furthermore, a pressure gauge is arranged at the upstream of the energy accumulator so as to conveniently observe the pressure of the oil way in real time.
One end part of the spherical hinge is provided with a spherical hinge flange plate which is used for being fixedly connected to the spherical shell oscillating floater, the other end of the spherical hinge is fixedly connected with a hydraulic cylinder piston rod of the flange type double-acting hydraulic cylinder, specifically, an internal thread hole is formed in a spherical head rod of the spherical hinge, an external thread is formed at the end part of the hydraulic cylinder piston rod, and the hydraulic cylinder piston rod extends into the internal thread hole of the spherical head rod to connect the spherical head rod and the hydraulic cylinder piston rod through thread matching; and one end of the flange type double-acting hydraulic cylinder, which is far away from the spherical hinge, is provided with a hydraulic cylinder flange plate, and the machine room is fixedly connected with the flange type double-acting hydraulic cylinder through the hydraulic cylinder flange plate.
Further, the spherical shell oscillating floater is of an eccentric structure, namely the gravity center of the spherical shell oscillating floater is not coincident with the geometric center of the spherical shell oscillating floater, and the wave energy capture amount of the spherical shell oscillating floater on three rotational degrees of freedom can be increased through the eccentric structure.
According to the utility model provides a technical scheme can gain following advantage at least: the device can be mounted on a movable ship body or independently suspended on the sea surface, and provides long-term stable electric energy for the mankind to sail in the sea; the life comfort of a crew is improved, after the hydraulic cylinder captures the energy of the relative motion of the floater and the ship body, the shaking amplitude of the floater is smaller than that of the ship body relative to the sea surface, the space in the floater is more stable, and the space in the floater is used as a life space and has small shaking feeling; the structure is simple, and the three hydraulic cylinders can absorb the motion energy of the ship body in six degrees of freedom; the energy conversion efficiency is high, the mechanical energy of the machine room in six degrees of freedom can be captured, and in addition, the hydraulic transmission efficiency is higher than the mechanical transmission efficiency; the installation is flexible, the room of the ship body is used as a machine room, and the size and the shape of the floater are adjusted along with the room of the ship body.
Drawings
Fig. 1 is a schematic structural view of a main body of the movable multi-degree-of-freedom wave power generation device;
fig. 2 is a schematic diagram of a hydraulic oil circuit of the movable multi-degree-of-freedom wave power generation device;
fig. 3 is a schematic structural view of a hydraulic cylinder connecting arm of the movable multi-degree-of-freedom wave power generation device of the present invention;
fig. 4 is a schematic diagram of the overall profile structure of the movable multi-degree-of-freedom wave power generation device of the present invention;
in the figure: 1. the device comprises a spherical shell oscillating floater, 2, a spherical hinge, 3, a flange type double-acting hydraulic cylinder, 4, a machine room, 5, a one-way valve, 6, a pressure gauge, 7, an energy accumulator, 8, a pressure control valve, 9, an overflow valve, 10, a hydraulic motor, 11, a generator, 12 and an oil tank, wherein the spherical shell oscillating floater is connected with the oil tank;
21. a spherical hinge flange plate;
31. a hydraulic cylinder piston rod 32 and a hydraulic cylinder flange.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may cause confusion as to the understanding of the present invention. And the shapes, sizes and positional relationships of the components in the drawings do not reflect the actual sizes, proportions and actual positional relationships. In addition, in the present invention, any reference signs placed between parentheses shall not be construed as limiting the present invention.
Similarly, in the previous description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. Reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer 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.
Referring to fig. 1 and fig. 4, a schematic diagram of a main structure of the movable multi-degree-of-freedom wave power generation device of the present invention and a schematic diagram of an overall outline structure of the movable multi-degree-of-freedom wave power generation device of the present invention are shown respectively; the movable multi-degree-of-freedom wave power generation device comprises a spherical shell oscillating floater 1, a machine room 4, a plurality of hydraulic cylinder connecting arms and an oil circuit system, wherein the machine room 4 is a room on a ship body or a hollow shell structure capable of floating on the sea surface, the spherical shell oscillating floater 1 is a hollow spherical shell and is arranged in the machine room 4 in a hanging mode through the hydraulic cylinder connecting arms, one ends of the hydraulic cylinder connecting arms are fixedly connected with the inner wall surface of the machine room 4, the other ends of the hydraulic cylinder connecting arms are fixedly connected with the outer surface of the spherical shell oscillating floater 1, and the oil circuit system provides oil circuit circulation of hydraulic oil for hydraulic cylinders in the hydraulic cylinder connecting arms.
Fig. 1 and 4 show an embodiment of three hydraulic cylinder connecting arms, which are used for installing a spherical shell oscillating floater 1 inside a machine room 4 in a suspended manner in a 90-degree manner (i.e. according to the position relationship of XYZ coordinate axes in a cartesian coordinate system), and each hydraulic cylinder connecting arm is composed of a spherical hinge 2 and a flange-type double-acting hydraulic cylinder 3, and referring to fig. 3, the hydraulic cylinder connecting arm structure of the movable multi-degree-of-freedom wave power generation device of the present invention is schematically illustrated, a spherical hinge flange 21 is arranged at one end of the spherical hinge 2, the spherical hinge flange 21 is used for being fixedly connected to the spherical shell oscillating floater 1, the other end of the spherical hinge 2 is fixedly connected to a hydraulic cylinder piston rod 31 of the flange-type double-acting hydraulic cylinder 3, specifically, a spherical head rod of the spherical hinge 2 is fixedly connected to an end of the hydraulic cylinder piston rod 31, or an internal threaded hole is arranged inside the spherical head rod of the spherical hinge 2, an external thread is arranged at an end of the hydraulic cylinder piston rod 31, and the internal threaded hole is screwed into the internal threaded hole of the spherical head rod, and the overall length of the entire hydraulic cylinder connecting arm can be adjusted by a thread; the bottom of the flange type double-acting hydraulic cylinder 3 is provided with a hydraulic cylinder flange 32, and the machine room 4 is fixedly connected with the flange type double-acting hydraulic cylinder 3 through the hydraulic cylinder flange 32.
Fig. 2 is the utility model discloses movable multi freedom wave energy power generation facility's hydraulic pressure oil circuit schematic diagram, and it shows simultaneously oil piping system's part is constituteed, for directly perceived clear show oil circuit circulation process, has marked three spherical shell vibration float 1 in fig. 2, and its essence is same float, and the equal fixed connection of tip of three flange formula double-acting hydraulic cylinder 3 is on same spherical shell vibration float 1. Referring to fig. 2, the oil path system includes a check valve 5, an energy accumulator 7, a hydraulic motor 10, a generator 11, an oil tank 12 and a pressure control valve 8, hydraulic oil inlets of cavities on both sides of a piston of the flange-type double-acting hydraulic cylinder 3 are both communicated with the oil tank 12 through pipelines, the check valve 5 is arranged on a hydraulic oil inlet pipeline, hydraulic oil outlets of cavities on both sides of the piston of the flange-type double-acting hydraulic cylinder 3 are both communicated with the energy accumulator 7 through pipelines, the check valve 5 is also arranged on a hydraulic oil outlet pipeline, and the check valve 5 is used for enabling hydraulic oil to flow only in the direction from the oil tank 12 to the energy accumulator 7; the hydraulic motor 10 is connected in series on a pipeline between the oil tank 12 and the energy accumulator 7, a pressure control valve 8 is arranged between the hydraulic motor 10 and the energy accumulator 7, the pressure control valve 8 can adopt a safety valve with set opening pressure or a stop valve which is electrically controlled to open and close, so that the hydraulic oil pressure in the energy accumulator 7 is opened after reaching a set value, an oil way between the energy accumulator 7 and the hydraulic motor 10 is communicated, and in the process that the hydraulic oil in the energy accumulator 7 flows back to the oil tank 12, the hydraulic oil pressure difference drives the hydraulic motor 10 to rotate, thereby driving the generator 11 to work and generate electricity. When the piston of the flange type double-acting hydraulic cylinder 3 extrudes one cavity to discharge oil, the other cavity is stretched to absorb oil from the oil tank 12, and oil circuit circulation is realized.
Referring to fig. 2, the oil circuit system further includes an overflow valve 9, which is connected in parallel with the hydraulic motor 10 through a pipeline, the overflow valve 9 controls the hydraulic oil pressure to be lower than the oil circuit pressure threshold, and the overpressure hydraulic oil directly flows back to the oil tank 12 from the overflow valve 9, so as to avoid damaging the oil circuit; the accumulator 7 stores high-pressure hydraulic oil with unstable pressure and flow which flows out of the flange type double-acting hydraulic cylinder 3, supplies the hydraulic oil with stable pressure to the hydraulic motor 10 after accumulating to set pressure, and ensures that the hydraulic motor 10 rotates stably. Further, a pressure gauge 6 is arranged on the upstream of the energy accumulator 7, so that the pressure of the oil way can be conveniently observed in real time.
According to the above embodiment, the utility model discloses wave energy power generation facility's theory of operation is: in the process of sailing of the ship, the ship body is collided by waves and has motions of three translational degrees of freedom of swaying, surging and heaving and three rotational degrees of freedom of yawing, rolling and surging; the machine room is a room on the ship body, the machine room 4 and the ship body move together, and the spherical shell oscillating floater 1 has inertia and moves relative to the machine room; when the spherical shell oscillating floater and the machine room generate relative motion in any degree of freedom, the spherical shell oscillating floater 1 converts wave energy captured by the machine room into mechanical energy of self motion, so as to drive a piston rod of the flange type double-acting hydraulic cylinder 3 to move, the piston pressurizes hydraulic oil in a cylinder body to generate high-pressure hydraulic oil, and the mechanical energy is converted into pressure potential energy; high-pressure hydraulic oil is continuously accumulated in the energy accumulator 7, after a certain amount of energy is accumulated, the pressure control valve 8 is opened, the hydraulic oil flows to push the hydraulic motor 10 to rotate, and therefore the generator 11 is driven to generate electricity.
In another embodiment, the machine room 4 is directly used as a part operating on the sea surface, the spherical shell oscillating floater 1 can be used as a living space, the relative motion of the machine room 4 and the spherical shell oscillating floater 1 is used as a wave energy power generation foundation, and the power generation principle is as shown in fig. 2.
According to the technical scheme of the utility model, can realize following practical effect at least: the device can be mounted on a movable ship body or independently suspended on the sea surface, and provides long-term stable electric energy for the mankind to sail in the sea; the life comfort of the crew is improved, after the hydraulic cylinder captures the energy of the relative motion of the spherical shell oscillating floater and the ship body, compared with the sea surface, the shaking amplitude of the spherical shell oscillating floater is smaller than that of the ship body, the space in the floater is more stable, the internal space of the floater can also be used as the living space of the crew, the crew can feel more stable relative to the ship body, and the bumping feeling of the crew is reduced; the structure is simple, and the three hydraulic cylinders can absorb the motion energy of the ship body in six degrees of freedom; the energy conversion efficiency is high, the mechanical energy of the machine room in six degrees of freedom can be captured, and in addition, the hydraulic transmission efficiency is higher than the mechanical transmission efficiency; the installation is flexible, the room of the ship body is used as a machine room, and the size and the shape of the floater are adjusted along with the room of the ship body.
Claims (9)
1. A movable multi-degree-of-freedom wave power generation device is characterized by comprising a spherical shell oscillating floater, a machine room, a plurality of hydraulic cylinder connecting arms and an oil circuit system, wherein the spherical shell oscillating floater is mounted in the machine room in a suspended mode through the plurality of hydraulic cylinder connecting arms;
the oil circuit system comprises a one-way valve, an energy accumulator, a hydraulic motor, a generator and an oil tank, wherein the cylinder body is divided into two cavities on two sides of the piston by an internal piston of the flange type double-acting hydraulic cylinder, hydraulic oil inlets of the two cavities on two sides of the piston are communicated with the oil tank through pipelines, the one-way valve is arranged on a hydraulic oil inlet pipeline, hydraulic oil outlets of the two cavities on two sides of the piston are communicated with the energy accumulator through pipelines, the one-way valve is also arranged on a hydraulic oil outlet pipeline, and the hydraulic oil can only flow in the direction from the oil tank to the energy accumulator through the one-way valve; the hydraulic motor is connected in series on a pipeline between the oil tank and the energy accumulator, and drives the generator to generate electricity when rotating.
2. The movable multi-degree-of-freedom wave energy power generation device according to claim 1, further characterized in that the three hydraulic cylinder connecting arms are used for installing a spherical shell oscillating floater in a suspended manner in a machine room in a manner of forming an angle of 90 degrees with each other.
3. The movable type multi-degree-of-freedom wave energy power generation device according to claim 1, further characterized in that the oil circuit system further comprises a pressure control valve, the pressure control valve is connected in series between the hydraulic motor and the accumulator, and the pressure control valve is opened after hydraulic oil in the accumulator reaches a set pressure.
4. The movable multi-degree-of-freedom wave energy power generation device according to claim 3, further characterized in that the oil circuit system further comprises an overflow valve which is connected in parallel with the hydraulic motor through a pipeline, the overflow valve controls hydraulic oil pressure to be lower than an oil circuit pressure threshold value, and overpressure hydraulic oil directly flows back to an oil tank from the overflow valve.
5. The movable type multi-degree-of-freedom wave energy power generation device according to claim 3 or 4, further characterized in that a pressure gauge is further arranged upstream of the accumulator.
6. The movable multi-degree-of-freedom wave energy power generation device according to claim 1, further characterized in that the machine room is a room on a ship hull or a hollow shell structure capable of floating on the sea surface.
7. The movable multi-degree-of-freedom wave power generation device according to claim 1 or 2, further characterized in that a spherical hinge flange is arranged at one end of the spherical hinge and is fixedly connected to the spherical shell oscillating floater, the other end of the spherical hinge is fixedly connected with a hydraulic cylinder piston rod of the flange type double-acting hydraulic cylinder, a hydraulic cylinder flange is arranged at one end, far away from the spherical hinge, of the flange type double-acting hydraulic cylinder, and the machine room is fixedly connected with the flange type double-acting hydraulic cylinder through the hydraulic cylinder flange.
8. The movable multi-degree-of-freedom wave energy power generation device according to claim 7, further characterized in that an internal threaded hole is formed in a ball head rod of the ball hinge, external threads are formed in the end portion of a piston rod of the hydraulic cylinder, and a piston rod of the hydraulic cylinder extends into the internal threaded hole of the ball head rod to connect the ball head rod and the hydraulic cylinder through threaded fit.
9. The movable multiple degree of freedom wave energy power generation device according to claim 1 or 2, further characterized in that the center of gravity of the spherical shell oscillating floater and the geometric center thereof are not coincident.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320031806.1U CN218817293U (en) | 2023-01-06 | 2023-01-06 | Movable multi-degree-of-freedom wave power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320031806.1U CN218817293U (en) | 2023-01-06 | 2023-01-06 | Movable multi-degree-of-freedom wave power generation device |
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| Publication Number | Publication Date |
|---|---|
| CN218817293U true CN218817293U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320031806.1U Active CN218817293U (en) | 2023-01-06 | 2023-01-06 | Movable multi-degree-of-freedom wave power generation device |
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|---|---|
| CN (1) | CN218817293U (en) |
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2023
- 2023-01-06 CN CN202320031806.1U patent/CN218817293U/en active Active
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