CN111472920A - A float and catamaran-type wave energy power generation device comprising the float - Google Patents

Abstract

The invention discloses a float and a catamaran-type wave energy generating device including the float. Wherein, the float includes a float body and an adjustment cabin arranged in the float body. The adjustment cabin contains a water port and an air port, and the water port is connected with a water pumping/pumping device. The catamaran-type wave energy power generation device includes a float, a hull hinged with the float through a first hinge assembly, a permanent magnet generator hinged on the float and the hull, and a battery and a load controller installed on the hull. The battery is connected to the permanent magnet respectively. The generator is connected with the load controller, and the rotor of the permanent magnet generator is hinged with the hull through the second hinge assembly. The float wet area and the center of gravity of the present invention can be adjusted, and for the catamaran-type wave energy power generation device including the float, the float wet area, the position of the center of gravity of the float, and the resonance frequency can be adjusted according to different working locations and different wave conditions, and the wave energy can be captured. It has the characteristics of high ability, strong maneuverability, strong adaptability to different sea areas and wave conditions, and strong self-supplying ability.

Description

A float and catamaran-type wave energy power generation device comprising the float

technical field

The invention relates to the technical field of new energy, in particular to a float and a catamaran-type wave energy power generation device including the float.

Background technique

As we all know, with the implementation of the national marine strategy, the demand for offshore electricity is increasing day by day. At the same time, the environmental problems caused by the frequent use of fossil energy are becoming more and more serious, which makes it urgent to develop clean new energy. As a green renewable resource, ocean wave energy has the advantages of large reserves, wide distribution, and high energy flow density. It can effectively alleviate the worldwide energy shortage, improve environmental problems, and provide clean and lasting power for ocean observation and development.

At present, permanent magnet power generation technology is becoming more and more perfect, and it has been successfully applied in mainstream wave power generation devices in China, Europe and the United States. For example, Patent No. CN103264765A discloses a catamaran wave energy power generation technology. The power generation devices are symmetrically distributed at the tail of the two hulls, the generator and the bearing frame are fixed on the hull by bolts, and the spherical float is connected with the pendulum rod to form a floating body mechanism, the spherical float floats on the water surface to collect wave energy; gears and gears form a gear mechanism, and there is an inner ratchet on the gears, which ensures the one-way operation of the generator, and the electric energy generated by the generator can be stored in the battery to realize wave energy. and conversion of electrical energy.

However, the existing catamaran-type wave energy device based on the oscillating float power generation technology cannot control the wet area of the float, nor can it self-regulate according to different working sea areas and wave conditions, which reduces its applicable sea area and wave spectrum to a certain extent. width.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a float and a catamaran-type wave energy power generation device including the float. The wet area and the position of the center of gravity of the float can be adjusted according to different working sea areas and wave conditions, which can effectively improve the catamaran-type wave The wave-to-electricity conversion efficiency of a power-generating device.

For this purpose, the present invention adopts the following technical solutions:

In one aspect, a float is provided, comprising a float body, an adjustment chamber disposed in the float body, and a water pumping/pumping device, the adjustment chamber having a water port and an air port, the water port and the water pumping/pumping device connect.

As a preferred technical solution of the float, the float body is provided with a groove with an upward opening and a cover for blocking the opening, and the water port and the air port are located on the cover.

As a preferred technical solution of the float, the number of the adjustment cabins is several, and the intervals of the adjustment cabins are arranged in the float body.

In another aspect, a catamaran-type wave energy power generation device is provided, comprising the float, a hull hinged with one side of the float through a first hinge assembly, and a permanent magnet installed on the float and the hull A generator, a battery and a load controller installed on the hull, the battery is respectively connected to the permanent magnet generator and the load controller, and the rotor of the permanent magnet generator is connected to the permanent magnet generator through a second hinge assembly. The hull is hinged.

As a preferred solution of the catamaran-type wave energy power generation device, the first hinge assembly further includes two first arc-shaped connecting parts, two second arc-shaped connecting parts, and a hinge shaft. An arc-shaped connecting portion is spaced on the side of the hull close to the float, two second arc-shaped connecting portions are spaced on the side of the float close to the hull, and the two second arc connecting portions are spaced on the side of the float close to the hull. The arc-shaped connecting parts are respectively disposed adjacent to one of the first arc-shaped connecting parts, the first arc-shaped connecting part partially intersects with the second arc-shaped connecting part, and the hinge shaft passes through the hinge port on the intersecting part to Connect the hull and the float.

As a preferred solution of the catamaran-type wave energy power generation device, the two first arc-shaped connecting parts are respectively adjacent to both sides of the hull, and the two second arc-shaped connecting parts are respectively adjacent to the floats. sides.

As a preferred solution of the catamaran-type wave energy power generation device, the second hinge assembly includes a hinge bracket and a hinge key located above the hull and adjacent to the float, and the hinge bracket includes two spaced and fixed on The vertical rod above the hull and the connecting shaft fixedly connected with the upper end of the vertical rod, the rotor is connected with the connecting shaft through the hinge key, and the float can drive the rotor to rotate around the connecting shaft.

As a preferred solution of the catamaran-type wave energy power generation device, the hinge key includes a pivot ring and a screw rod fixedly connected to the outer periphery of the pivot ring, and the axial direction of the pivot ring is perpendicular to the screw rod In the longitudinal direction of the rotor, the pivot ring is sleeved on the connecting shaft, and the screw is screwed to the screw hole at the end of the rotor.

As a preferred solution of the catamaran-type wave energy power generation device, a mounting base is provided on the float, and the stator of the permanent magnet generator is fixed on the mounting base.

Beneficial effects of the present invention: the present invention adjusts the weight of the float by pumping or extracting seawater of different volumes into the adjusting chamber of the float, thereby changing the wet area and center of gravity of the float; when the water pump pumps out the seawater in the adjusting chamber, the gas At the same time, it flows into the adjustment cabin through the air port. When the seawater in the adjustment cabin is emptied, the weight of the float is the lightest. When the float of the present invention is used as the energy harvesting float of the wave energy power generation device, the weight, wet area and gravity center of the float can be adjusted according to different sea areas and wave conditions, so that the wave energy device can achieve the best power generation effect under the wave conditions. When the conditioning cabin is emptied, the catamaran-type wave energy power generation device can sail quickly on the sea surface as required. Compared with the prior art, the catamaran-type wave energy power generation device with floats that can adjust the wet area and the position of the center of gravity of the present invention has the characteristics of high mobility, high wave energy capture efficiency, and adaptability to different sea areas and wave conditions. .

Description of drawings

In order to describe the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a catamaran-type wave energy power generation device according to an embodiment of the present invention.

FIG. 2 is a side view of a catamaran-type wave energy power generation device according to an embodiment of the present invention.

In the picture:

10. Float; 11. Float body; 12. Adjustment cabin; 20. First hinge assembly; 21. First arc-shaped connecting part; 22. Second arc-shaped connecting part; 23. Hinged shaft; 30. Hull; 40, Permanent magnet generator; 41, rotor; 42, stator; 50, second hinge assembly; 51, upright rod; 52, connecting shaft.

Detailed ways

The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

Among them, the accompanying drawings are only used for exemplary description, and they are only schematic diagrams, not physical drawings, and should not be construed as restrictions on this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings will be omitted, The enlargement or reduction does not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left" and "right" appear The orientation or positional relationship indicated by , "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must be It has a specific orientation, is constructed and operated in a specific orientation, so the terms describing the positional relationship in the accompanying drawings are only used for exemplary illustration, and should not be construed as a limitation on this patent. situation to understand the specific meaning of the above terms.

In the description of the present invention, unless otherwise expressly specified and limited, if the term "connection" or the like appears to indicate a connection relationship between components, the term should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection It can be connected or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal connection between two components or an interaction relationship between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The shapes and structures of the float and the hull of the present embodiment are not limited to the drawings, and the float 10 and the hull 30 in the drawings are only for illustration.

As shown in FIGS. 1 and 2 , the float 10 in this embodiment includes a float body 11 , an adjustment chamber 12 disposed in the float body 11 , and a water pumping/pumping device, the adjustment chamber 12 having a water port and an air port , the nozzle is connected to the water pumping/pumping device. Wherein, the water pumping/pumping device, the water port and the air port are not shown in the figure.

Wherein, the water pumping/pumping device can be, for example, a bidirectional rotating water pump disclosed in CN207701389U, which can realize bidirectional water pumping, and through the water pump, different volumes of seawater can be pumped into the adjustment chamber 12 through the water port to adjust the weight of the float 10, thereby changing the float Wet area and center of gravity of 10; when the water pump draws out the seawater in the adjustment chamber 12, the gas flows into the adjustment chamber 12 through the air port, and when the seawater in the adjustment chamber 12 is emptied, the weight of the float 10 is the lightest, and the wet area decreases, The center of gravity rises. When the float 10 of this embodiment is used as the energy harvesting float of the wave power generation device, the weight of the float 10 can be adjusted according to different wave conditions, so that the float 10 achieves the optimal motion response under the wave conditions, thereby obtaining the maximum power output. In addition, after the adjustment cabin 12 is emptied, the catamaran-type wave energy power generation device can sail quickly on the sea surface as required.

Wherein, the float body 11 is provided with a groove with an upward opening and a cover for blocking the opening, and the water port and the air port are located on the cover. The float body 11 can be a solid structure or a hollow structure. When the float body 11 is a solid structure, a groove is directly dug above the float body 11, and then a cover body with a water port and an air port is used to seal the water port; when the float body 11 When it is a hollow structure, a column-shaped surrounding wall is arranged in the float body 11, a groove is formed between the column-shaped surrounding wall and the float body 11, and the float body 11 is located at the upper part of the groove, that is, the cover body.

Further, the number of the adjustment cabins 12 is several, and the adjustment cabins 12 are arranged in the float body 11 at intervals. The function of arranging several adjustment cabins 12 is to adjust the volume of seawater in the adjustment cabins 12 at different positions according to the wave conditions, so as to optimize the movement under the wave conditions, thereby further obtaining the best energy absorption efficiency of wave energy. The number of the adjustment cabins 12 is not limited, which is determined according to the actual situation.

As shown in FIG. 1 , the float body 11 is provided with six adjustment chambers 12 arranged at intervals. During operation, the weight of the adjustment tank 12 can be changed by pumping or pumping different volumes of seawater to the water port of the adjustment tank 12 through the water pumping/pumping device, thereby changing the wet area and the center of gravity (center of mass) of the float 10 used for energy harvesting .

This embodiment also provides a catamaran-type wave energy power generation device, which includes the float 10 described in the above embodiment, a hull 30 hinged to one side of the float 10 through a first hinge assembly 20 , and a hull 30 mounted on the float 10 . and the permanent magnet generator 40 on the hull 30, as well as the battery and load controller installed on the hull 30, the battery is respectively connected with the permanent magnet generator 40 and the load controller, the permanent magnet generator 40 and the load controller are respectively connected. The rotor 41 of the generator 40 is hinged with the hull 30 through the second hinge assembly 50 . Among them, the battery and load controller are not shown in the figure. The hull 30 and the float 10 can rotate simultaneously after being hinged by the first hinge assembly 20. When the hull 30 and the float 10 rotate, they can drive the rotor 41 of the permanent magnet generator 40 to rotate relative to the stator 42, thereby converting the wave energy into electrical energy and storing it in the battery. middle. The catamaran-type wave energy power generation device of this embodiment is provided with an adjustable energy harvesting float. On the premise of ensuring high mobility, the wet area and center of gravity of the float 10 can be adjusted according to the wave conditions in different sea areas to obtain the best energy capture. It can quickly sail to a new working sea area or return to the port to avoid extreme wave conditions, so it is suitable for operations in different sea areas, effectively solving the problem that the traditional wave energy catamaran type wave energy power generation device cannot control the wet area and the center of gravity of the float 10 Therefore, there is a problem of insufficient adaptability to different working conditions.

Further, the first hinge assembly 20 further includes two first arc-shaped connecting parts 21 , two second arc-shaped connecting parts 22 and a hinge shaft 23 , and the two first arc-shaped connecting parts 21 are spaced apart at the The side of the hull 30 close to the float 10 , the two second arc-shaped connecting parts 22 are arranged at intervals on the side of the float 10 close to the hull 30 , and the two second arc-shaped connecting parts 22 are respectively adjacent to each other. One of the first arc-shaped connecting parts 21 is provided, the first arc-shaped connecting part 21 and the second arc-shaped connecting part 22 are partially intersected, and the hinge shaft 23 passes through the hinge port on the intersecting part to connect The hull 30 and the float 10 . The hull 30 and the float 10 are respectively rotated around the hinge shaft 23 under the action of sea waves. Specifically, when the hull 30 rotates counterclockwise around the hinge shaft 23, the float 10 rotates clockwise around the hinge shaft 23 or when the hull 30 rotates clockwise around the hinge shaft 23, the float 10 rotates counterclockwise around the hinge shaft 23, while the rotor 41 The relative stator 42 moves along the length of the stator 42, thereby converting wave energy into electrical energy.

The first arc-shaped connecting portion 21 and the second arc-shaped connecting portion 22 have simple structures and are easy to install.

Further, in order to prevent the hinge shaft 23 from separating from the hinge port during the rotation of the hull 30 and the float 10 around the hinge shaft 23, after the hinge shaft 23 passes through the two hinge ports, two ends of the hinge shaft 23 are respectively provided with a limiter. Position pins (not shown in the figure).

Further, the two first arc-shaped connecting parts 21 are respectively adjacent to both sides of the hull 30, and the two second arc-shaped connecting parts 22 are respectively adjacent to both sides of the float 10, which improves the hinge interface and the The connection stability between the hinge shafts 23.

Further, the second hinge assembly 50 includes a hinge bracket and a hinge key located above the hull 30 and adjacent to the float 10 , and the hinge bracket includes two vertical rods 51 fixed at intervals above the hull 30 The rotor 41 is connected with the connecting shaft 52 through the hinge key, and the float 10 can drive the rotor 41 to rotate around the connecting shaft 52 . In this embodiment, the connecting shaft 52 is arranged at the position of the hull 30 adjacent to the float 10, which can effectively shorten the transmission path and improve the motion response efficiency.

Specifically, the hinge key includes a pivot ring and a screw rod fixedly connected to the outer circumference of the pivot ring, the axial direction of the pivot ring is perpendicular to the length direction of the screw rod, and the pivot ring is sleeved on the On the connecting shaft 52 , the screw is screwed to the screw hole at the end of the rotor 41 . In this embodiment, the hinge key is not shown in the figure.

In this embodiment, the float 10 is provided with a mounting base 60 , and the stator 42 of the permanent magnet generator 40 is fixed on the mounting base 60 . Wherein, the installation base 60 is fixed on the float 10 adjacent to the hull 30 , so as to facilitate the fixing of the permanent magnet generator 40 .

In another embodiment of the present invention, it is basically the same as the above-mentioned embodiment (refer to the drawings in the above-mentioned embodiment, and the same component names can be used with the same reference numerals), and the difference lies in the structure of the first hinge assembly 20 . Specifically, the first hinge assembly 20 includes two first connection lugs, two second connection lugs and a hinge shaft 23 , and the two first connection lugs are arranged at intervals between the hull 30 and the float 10 . On one side, two second connecting lugs are arranged at intervals on the side of the float 10 close to the hull 30, and the two second connecting lugs are respectively adjacent to one of the first connecting lugs, and the first connecting lugs are A first through hole is provided, and a second through hole is provided on the second connecting lug plate. The first connecting lug plate and the second connecting lug plate are partially overlapped so that the first through hole and the second through hole are completely overlapped, and the hinge shafts 23 are respectively Hinged with the first through hole and the second through hole.

During the power generation operation of the catamaran-type wave energy power generation device in this embodiment, the hull 30 and the float 10 rotate with the hinge shaft 23 as the axis. When the hull 30 rotates counterclockwise around the hinge shaft 23, the float 10 rotates clockwise around the hinge shaft 23. At this time, the motion state of the stator 42 of the permanent magnet generator 40 is the same as that of the float 10, while the motion state of the rotor 41 is affected by the hull 30 and rotates around the connecting shaft 52. The hull 30 and the float 10 follow the waves The movement is converted into the relative movement of the rotor 41 and the stator 42 of the permanent magnet generator 40 along the length direction of the stator 42, thereby generating electricity.

The traditional catamaran-type wave energy power generation device cannot move with the waves like the dual-body valve device, and it is easy to be pulled away and crashed back to the sea surface when the waves are large, which damages the stability and service life of the device. The catamaran-type wave energy power generation device of the present invention adopts a catamaran articulation method, the wet area and the center of gravity of the float 10 in the catamaran can be adjusted, and has a higher capture width ratio, which is similar to the traditional catamaran articulation method. than has a higher conversion efficiency. The catamaran-type wave energy power generation device of the invention can supply water and power to off-grid islands and coastal areas, and has the characteristics of high mobility, high wave energy capture efficiency, and suitability for different sea areas and wave conditions.

It should be stated that the above-mentioned specific embodiments are only preferred embodiments of the present invention and applied technical principles. It should be understood by those skilled in the art that various modifications, equivalent substitutions, changes and the like can also be made to the present invention. However, as long as these transformations do not depart from the spirit of the present invention, they should all fall within the protection scope of the present invention. In addition, some terms used in the specification and claims of the present application are not limiting, but are only for convenience of description.

Claims (9)

1. A float is characterized by comprising a float body, an adjusting cabin arranged in the float body and a water pumping/pumping device, wherein the adjusting cabin is provided with a water opening and a gas opening, and the water opening is connected with the water pumping/pumping device.

2. The float according to claim 1, wherein a groove having an upward opening portion and a cover for closing the opening portion are provided in the float body, and the water port and the air port are provided in the cover.

3. The float of claim 1, wherein the number of said chambers is a plurality, and a plurality of said chambers are spaced apart within the float body.

4. A catamaran wave energy power generation device, which is characterized by comprising a floater as defined in any one of claims 1 to 3, a ship body hinged with the floater through a first hinge assembly, permanent magnet generators mounted on the floater and the ship body, and a storage battery and a load controller mounted on the ship body, wherein the storage battery is respectively connected with the permanent magnet generators and the load controller, and a rotor of each permanent magnet generator is hinged with the ship body through a second hinge assembly.

5. The catamaran wave energy power generation device according to claim 4, wherein the first hinge assembly further includes two first arcuate connecting portions spaced apart from one side of the hull adjacent to the float, two second arcuate connecting portions spaced apart from one side of the float adjacent to the hull, and two second arcuate connecting portions disposed adjacent to one of the first arcuate connecting portions, the first arcuate connecting portions partially crossing the second arcuate connecting portions, and a hinge shaft passing through a hinge joint on the crossing portion to connect the hull and the float.

6. The catamaran wave energy generation assembly of claim 5, wherein two of the first arcuate connection portions are adjacent respective sides of the hull, and two of the second arcuate connection portions are adjacent respective sides of the float.

7. The catamaran wave energy power generation device according to claim 4, wherein the second hinge assembly comprises a hinge bracket and a hinge key, the hinge bracket is located above the hull and is adjacent to the floater, the hinge bracket comprises two vertical rods fixed above the hull at intervals and a connecting shaft fixedly connected with upper ends of the vertical rods, the rotor is connected with the connecting shaft through the hinge key, and the floater can drive the rotor to rotate around the connecting shaft.

8. The catamaran wave energy power generation device according to claim 7, wherein the hinge key comprises a pivot ring and a screw fixedly connected with the periphery of the pivot ring, the axial direction of the pivot ring is perpendicular to the length direction of the screw, the pivot ring is sleeved on the connecting shaft, and the screw is in threaded connection with a screw hole at the end of the rotor.

9. The catamaran wave energy power generation device according to claim 4, wherein the floater is provided with a mounting base, and a stator of the permanent magnet generator is fixed on the mounting base.

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