CN115045792A

CN115045792A - Sea wave power generation device

Info

Publication number: CN115045792A
Application number: CN202210225351.7A
Authority: CN
Inventors: 于光远
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-09-13
Also published as: WO2023169169A1

Abstract

The application discloses a sea wave power generation device which comprises at least one power generation unit, wherein the power generation unit comprises a machine body; a floating box; a water tank having a drain pipe; the generator set is arranged on the drain pipe; the water pump is provided with blades, stress cambered surfaces are arranged on two sides of each blade, and the water pump has a forward rotation state and a reverse rotation state; the water flow pipeline comprises a forward rotation water channel and a reverse rotation water channel, seawater enters the water tank through the forward rotation water channel in a forward rotation state, and seawater enters the water tank through the reverse rotation water channel in a reverse rotation state. The blade rotates in two directions and corresponds the come-up process and the process of sinking of floating the case respectively, and wave power generation facility is provided with the water route of two intercommunication oceans, water pump and water tanks to this realizes that the water pump can one-way draw water from the ocean in the two-way homoenergetic of floating the case motion, has improved the work efficiency of water pump greatly, has improved the utilization ratio to wave energy, and then has improved the continuation and the generating quality of electricity generation.

Description

Sea wave power generation device

Technical Field

The application belongs to the technical field of wave power generation, and particularly relates to a wave power generation device.

Background

The power generation by utilizing the energy of wave fluctuation is a common power generation mode.

The wave power generation device generally includes a float and an energy conversion mechanism, and the wave pushes the float to float, so that the float is converted into mechanical energy of a generator through the energy conversion mechanism, and power generation is realized.

Generally, the sea wave power generation device is also provided with a water pumping device, namely, a floater drives the water pumping device to pump seawater, and the seawater is utilized to generate power. The common water pumping devices comprise a wheel type water pump, a piston water pump and the like, the water pumps can only work in a single way, namely when the sea pushes a floater to float upwards, the water pumps work to pump water, when the floater sinks, the wheel type water pump rotates reversely, the water pumps stop pumping water, even the water pumps reversely, and air enters the water pumps when the reverse suction force of the water pumps is easy, so that the working efficiency is influenced.

Therefore, the utilization rate of wave fluctuation energy of the existing wave power generation device is low, and the water pump only pumps water in one-way work of floating of the floater, so that the water pumping process cannot be continuous, further, the continuous and effective power generation cannot be realized, and the power generation efficiency and the power generation quality are influenced.

Disclosure of Invention

The present application provides a wave power plant to solve at least one of the above technical problems.

The technical scheme adopted by the application is as follows:

a wave power plant comprises at least one power generation unit, wherein the power generation unit comprises a machine body; the floating box can float up and down relative to the machine body under the buoyancy action of seawater; the water tank is provided with a drain pipe, the drain pipe is provided with a water inlet end and a drain end, and the position of the water inlet end is higher than that of the drain end; the generator set is arranged on the drain pipe; the water pump is provided with blades, and both sides of each blade in the rotation direction of the water pump are provided with inwards-concave stressed cambered surfaces so that the water pump is driven by the floating box to have a forward rotation state and a reverse rotation state; and the water flow pipeline comprises a forward rotation water path and a reverse rotation water path, the forward rotation water path and the reverse rotation water path are sequentially communicated with the sea, the water pump and the water tank, seawater enters the water tank through the forward rotation water path in the forward rotation state, and seawater enters the water tank through the reverse rotation water path in the reverse rotation state.

The water pump is provided with a forward rotation water inlet end and a reverse rotation water inlet end, the forward rotation water path comprises a first water pumping pipeline and a first water outlet pipeline, the first water pumping pipeline is communicated with the sea and the forward rotation water inlet end, the first water outlet pipeline is communicated with the reverse rotation water inlet end and the water tank, the reverse rotation water path comprises a second water pumping pipeline and a second water outlet pipeline, the second water pumping pipeline is communicated with the sea and the reverse rotation water inlet end, and the second water outlet pipeline is communicated with the forward rotation water inlet end and the water tank; the first water pumping pipeline, the first water outlet pipeline, the second water pumping pipeline and the second water outlet pipeline are all provided with a through/off valve, the forward rotation state is that the through/off valve arranged on the first water pumping pipeline is communicated with the through/off valve arranged on the first water outlet pipeline, and the reverse rotation state is that the through/off valve arranged on the second water pumping pipeline is communicated with the through/off valve arranged on the second water outlet pipeline.

The on-off valve arranged on the first water pumping pipeline and the on-off valve arranged on the second water pumping pipeline are both in a structure of one-way conduction from the sea to the water pump direction, and the on-off valve arranged on the first water outlet pipeline and the on-off valve arranged on the second water outlet pipeline are both in a structure of one-way conduction from the water pump to the water tank direction; the through-stop valves can be automatically opened and closed under the action of water pressure.

First water pumping pipeline first outlet conduit the second water pumping pipeline and the second outlet conduit has the installation cavity, the lead-to-no valve set up in the installation cavity, the lead-to-no valve includes mount, elastic component and shutoff piece, the shutoff piece passes through the elastic component connect in the mount, the shutoff piece can for the mount removes, so that the lead-to-no valve has the shutoff piece supports the top the closed condition of the inner wall of installation cavity, and the shutoff piece with the on-state that the inner wall of installation cavity breaks away from.

The water pump still has the pivot, the blade is a plurality of and centers on the pivot interval sets up, the blade has and is close to the near-end of pivot, and keeps away from the distal end of pivot, the width of near-end is less than the width of distal end.

One of the machine body and the floating box is provided with a rack extending along the vertical direction, the other of the machine body and the floating box is provided with a gear matched with the rack, the gear is matched with the rack so as to limit the movement of the floating box in the vertical direction, and the gear drives the blades to rotate.

The machine body further comprises a supporting column, an upper limiting part and a lower limiting part, the upper limiting part, the lower limiting part and the supporting column jointly enclose a floating space for the floating box to move, the floating box is arranged in the floating space, the gear or the rack is arranged on the supporting column, and an accommodating channel is arranged in the supporting column.

The lower limiting part is provided with a limiting opening, and when the floating box is in contact with the lower limiting part, part of the floating box is arranged in the limiting opening.

The floating box is internally provided with a containing cavity, and the bottom of the floating box is provided with a water inlet valve and a water drainage valve.

The wave power generation device comprises a plurality of power generation units, the power generation units are arranged in parallel, and the water tanks of the power generation units are communicated with each other.

Due to the adoption of the technical scheme, the beneficial effects obtained by the application are as follows:

1. this application is through right the water pump the blade carries out institutional advancement, all sets up in its both sides the atress cambered surface, thereby makes the blade can be in both sides atress, and then makes the blade can rotate in two directions, corresponds respectively float the come-up process and the process of sinking of case, for example work as when floating the case come-up the blade is in corotation state, works as when floating the case and sinking the blade is in reversal state. The sea wave power generation device is provided with two water ways communicated with the sea, the water pump and the water tank, when the blades rotate forwards, the forward rotation water way is communicated, the water pump pumps seawater to enter the water tank through the forward rotation water way, when the blades rotate backwards, the reverse rotation water way is communicated, and the water pump pumps seawater to enter the water tank through the reverse rotation water way. Therefore, the water pump can pump water from the sea in one way on both sides of the movement of the floating box, the working efficiency of the water pump is greatly improved, the utilization rate of wave energy is improved, and the continuity of power generation and the power generation quality are improved.

In addition, the water tank can be right the sea water of water pump extraction is collected, then utilizes the sea water in the water tank, continues steadily follow discharge in the drain pipe, utilizes the kinetic energy of difference in height increase sea water, and then drives generating set work electricity generation to this realization is continuously, generates electricity steadily, improves generating efficiency and power generation quality, reduces the influence of environmental factor to the electricity generation, because the water tank can store certain sea water, when the stormy waves is great, can store a large amount of sea water in the water tank to as long as there is water in the water tank, can generate electricity, avoid in the quiet weather environment of stormy waves the problem that power generation facility generating efficiency is low or can't generate electricity.

2. As a preferred embodiment of the present application, the water pump has a forward rotation water inlet end and a reverse rotation water inlet end, the forward rotation water path includes a first water pumping pipeline and a first water outlet pipeline, the first water pumping pipeline communicates with the ocean and the forward rotation water inlet end, the first water outlet pipeline communicates with the reverse rotation water inlet end and the water tank, the reverse rotation water path includes a second water pumping pipeline and a second water outlet pipeline, the second water pumping pipeline communicates with the ocean and the reverse rotation water inlet end, and the second water outlet pipeline communicates with the forward rotation water inlet end and the water tank; the first water pumping pipeline, the first water outlet pipeline, the second water pumping pipeline and the second water outlet pipeline are all provided with a through valve. When the floating box floats upwards to drive the blades to rotate forwards, the water pump generates suction force at the forward rotation water inlet end to pump water, seawater enters the water pump through the first water pumping pipeline, the water pump discharges water at the reverse rotation water inlet end, and the seawater in the water pump enters the water tank through the first water outlet pipeline; when the floating box sinks to drive the blades to rotate reversely, the water pump generates suction force at the reverse rotation water inlet end to pump water, seawater enters the water pump through the second water pumping pipeline, the water pump discharges water at the forward rotation water inlet end, and the seawater in the water pump enters the water tank through the second water outlet pipeline. The setting of logical check valve has guaranteed the water pump with the correspondence of rivers pipeline operating condition has improved the reliability of work, has guaranteed that the sea water is in orderly flow in the rivers pipeline, has avoided certain pipeline to cause the interference to other pipelines to and avoid the turbulent flow.

3. As a preferred embodiment of this application, first water pumping pipeline first outlet pipe way the second water pumping pipeline and second outlet pipe way has the installation cavity, the logical stop valve set up in the installation cavity, the logical stop valve includes mount, elastic component and shutoff piece, the shutoff piece passes through the elastic component connect in the mount, the shutoff piece can for the mount removes, so that the logical stop valve has the shutoff piece supports the top the closed condition of the inner wall of installation cavity, and the shutoff piece with the on-state that the inner wall of installation cavity breaks away from. When the through-stop valve is pushed by water flow on one side of the plugging piece, the elastic piece is compressed, so that the plugging piece moves towards the fixing frame and further breaks away from the inner wall of the mounting cavity to conduct the pipeline, and when the water flow pushing force is smaller than the elastic force of the elastic piece, the plugging piece is pushed by the elastic piece to reset, and the plugging state is recovered. On the contrary, if the through/off valve is stressed on one side of the fixing frame, the through/off valve cannot be conducted due to the fixed position of the fixing frame. The one-way conduction and the automatic opening and closing of the through-stop valve are realized, the water flow is ensured to flow in the water flow pipeline along the preset water pumping direction all the time, and the seawater backflow is prevented. Moreover, labor force is saved, manual control of opening and closing of the through-stop valve is not needed, automation is improved, and use experience is improved.

4. As a preferred embodiment of this application, the organism still includes support column, last spacing portion and lower spacing portion, go up spacing portion down spacing portion and the support column encloses into the confession jointly the showy space that floats the case motion, spacing portion is provided with spacing opening down, when floating the case and sinking to the bottommost, the subregion of floating the case is arranged in spacing opening. The arrangement of the limit opening facilitates seawater to flow from the limit opening to the floating space and push the floating box from the bottom of the floating box, so that the floating box floats upwards under the action of vertical upward thrust, and the floating box is prevented from being deviated in position or influencing normal transmission of a transmission structure due to the fact that the floating box is subjected to larger horizontal thrust. On the other hand, when the floating box sinks to the bottom due to weather reasons, the limiting opening can form a limiting stop for the floating box, so that the position of the floating box is more stable, and the floating box is prevented from falling off or being damaged due to larger transverse impact force of sea waves.

5. As a preferred embodiment of the present application, the floating box has a cavity inside, and the bottom of the floating box is provided with a water inlet valve and a water discharge valve. When the weather condition is good, the drain valve is opened to discharge the seawater in the accommodating cavity, so that the floating box recovers the floating function.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of the power generation device according to an embodiment of the present application;

FIG. 2 is a schematic structural view of the power generation unit shown in FIG. 1;

FIG. 3 is a front view of the power generation unit of FIG. 2;

FIG. 4 is a right side view of the hair-point unit of FIG. 2;

fig. 5 is a schematic structural diagram of the water flow pipeline of the power generation unit according to an embodiment of the present application, wherein the forward rotation water path is in a conducting state;

FIG. 6 is a schematic diagram of the water flow line of the power generation unit according to an embodiment of the present application, wherein the reverse waterway is in a conducting state;

FIG. 7 is an enlarged view of area A of FIG. 5;

FIG. 8 is a schematic structural view of the power generation unit in accordance with another embodiment of the present application;

FIG. 9 is an enlarged view of area B of FIG. 8;

figure 10 is a cross-sectional view of the float tank and the lower retainer in one embodiment of the present application.

Wherein:

1 a power generation unit;

2, a machine body; 21 a support column; 22 gears; 221 fixing a gear; 222 drive a gear; a position-limiting section at 23; a lower limit portion of 24; 25 limiting the opening;

3, floating the box; 31 a rack; 32 a floating plane; 33 water diversion inclined plane; 34 a cavity;

4, a water tank; 41 drain pipes; 411 a water inlet end; 412 a drain end;

5, a water pump; 51 blades; 511 stress arc surface; 52 a rotating shaft; 53 positively rotating the water inlet end; 54 inverting the water inlet end;

6, a generator set; 61, a first-stage generator; 62 a secondary generator;

7, a positive rotation waterway; 71 a first water pumping pipeline; 72 a first outlet conduit; 73 mounting a cavity; 731 an elastic fitting part;

8, reversing the waterway; 81 a second water pumping pipeline; 82 a second water outlet line;

9, a through stop valve; 91 fixing a frame; 92 an elastic member; 93 a closure.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, references to the description of the terms "implementation," "embodiment," "one embodiment," "example" or "specific example" or the like are intended to mean 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 application. In this specification, the schematic representations of the terms used above are not necessarily intended to 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.

As shown in fig. 1 to 10, a wave power generating device includes at least one power generating unit 1, the power generating unit 1 includes a body 2; the floating box 3 can float up and down relative to the machine body 2 under the buoyancy action of seawater; a water tank 4, wherein the water tank 4 is provided with a drain pipe 41, the drain pipe 41 is provided with a water inlet end 411 and a water outlet end 412, and the water inlet end 411 is positioned at a higher height than the water outlet end 412; the generator set 6, the said generator set 6 is set up in the said drain pipe 41; the water pump 5 is provided with blades 51, and two sides of each blade 51 in the rotation direction of the blade 51 are provided with inwards concave stress arc surfaces 511, so that the water pump 5 is driven by the floating box 3 to have a forward rotation state and a reverse rotation state; and the water flow pipeline comprises a forward rotation water channel 7 and a reverse rotation water channel 8, the forward rotation water channel 7 and the reverse rotation water channel 8 are sequentially communicated with the sea, the water pump 5 and the water tank 4, in the forward rotation state, seawater enters the water tank 4 through the forward rotation water channel 7, and in the reverse rotation state, seawater enters the water tank 4 through the reverse rotation water channel 8.

In use, the bottom of the power generation unit 1 is fixed to the sea floor such that a part of the power generation unit 1 is located below the sea level and a part of the power generation unit 1 is located above the sea level, and preferably, the power generation unit 1 has a lower stopper portion 24 for restricting the lowest position of the floating box 3, and the lower stopper portion 24 is flush with the sea level.

It should be noted that, in the present application, the number of the power generation units 1 is not specifically limited, and in a preferred embodiment, as shown in fig. 1, the wave power generation device includes a plurality of power generation units 1 (two power generation units 1 are shown in fig. 1, and other numbers are also possible), the power generation units 1 are arranged in parallel, and the water tanks 4 of the power generation units 1 are communicated with each other.

The water pump 5 of each power generation unit 1 pumps seawater into the water tank 4, stores the seawater in the water tank 4 in a concentrated manner, and generates power continuously and uninterruptedly by using a stable water flow in the water tank 4. The water storage capacity is improved, more seawater is stored, and the seawater stored in the water tank 4 is conveniently used for power generation in the calm environment.

The arrangement mode of the power generation units 1 is not specifically limited, and the power generation units 1 can be combined at will according to the environment conditions of the installed water area, for example, in the water area with large wind power and severe environment, the power generation units 1 are arranged in parallel and at intervals to reduce wind resistance, relieve the transverse thrust applied to the power generation device, and prevent the power generation device from tipping. In a water area with small wind power, the power generation units 1 can be arranged in parallel and closely adjacent to each other, so that the structural integrity is improved, and the assembly and disassembly are convenient.

The blade of current water pump 5 is cambered surface opposite side for the cambered surface opposite side usually for the blade can only receive rivers to promote and take place to rotate in cambered surface one side, and this application is through right water pump 5 blade 51 carries out construction improvement, all sets up in its both sides atress cambered surface 511, thereby makes blade 51 can be in both sides atress, and then makes blade 51 can rotate in two directions, corresponds respectively float the process and the process of sinking of floating case 3, for example when floating case 3 floats water pump 5 is in corotation state, when floating case 3 sinks water pump 5 is in the reversal state. The sea wave power generation device is provided with two water paths for communicating the sea, the water pump 5 and the water tank 4, when the water pump 5 rotates forwards, the forward rotation water path 7 is conducted, the water pump 5 pumps seawater to enter the water tank 4 through the forward rotation water path 7, when the water pump 5 rotates backwards, the reverse rotation water path 8 is conducted, and the water pump 5 pumps seawater to enter the water tank 4 through the reverse rotation water path 8. With this realization water pump 5 is in the two-way homoenergetic of 3 motions of floating box can one-wayly draw water from the ocean, and two water routes alternative switch on, and when one of them water route switched on, another water route was sealed to during operation mutual noninterference has guaranteed that the rivers route is orderly reliable, avoids the turbulent flow, has improved greatly water pump 5's work efficiency has improved the utilization ratio to the wave energy, and then has improved the continuation and the generating quality of electricity generation.

The water tank 4 can collect the seawater pumped by the water pump 5, then the seawater in the water tank 4 is used for continuously and stably discharging the seawater from the drain pipe 41, the potential energy of the seawater is increased by using the height difference, and the generator set 6 is driven to work and generate electricity, so that the continuous and stable electricity generation is realized, the electricity generation efficiency and the electricity generation quality are improved, and the influence of environmental factors on the electricity generation are reduced.

In a preferred embodiment, drain pipe 41 includes first drain pipe and second drain pipe, just first drain pipe with the second drain pipe all is provided with generating set 6, first drain pipe set up in the bottom of water tank 4, the second drain pipe set up in the third department of water tank 4 height, still be provided with level sensor in the water tank 4, work as sea water in the water tank 4 triggers during level sensor, it reaches spacing height to show the liquid level, usable automatic control device control this moment the second drain pipe switches on, this moment first drain pipe with the common drainage of second drain pipe, set up in first drain pipe generating set 6 with set up in the second drain pipe generating set 6 is all worked, generates electricity jointly. When the liquid level in the water tank 4 drops below the second drain pipe, the automatic control device controls the second drain pipe to be closed, only the first drain pipe is conducted at the moment, and the generator set 6 arranged on the first drain pipe is utilized to generate electricity.

Preferably, as shown in fig. 1 to 4, the generator set 6 includes a first-stage generator 61 and a second-stage generator 62 arranged in sequence from top to bottom, so that when the water flow is discharged from the water discharge pipe 41, the water flow passes through the first-stage generator 61 and the second-stage generator 62 in sequence, and power generation is performed twice, so as to maximize the energy of the water, improve the conversion rate of electric energy, and further improve the stability of power generation.

In a preferred embodiment of the present application, as shown in fig. 5 to 6, the water pump 5 has a forward rotation water inlet end 53 and a reverse rotation water inlet end 54, the forward rotation water circuit 7 includes a first water pumping circuit 71 and a first water outlet circuit 72, the first water pumping circuit 71 communicates the sea with the forward rotation water inlet end 53, the first water outlet circuit 72 communicates the reverse rotation water inlet end 54 with the water tank 4, the reverse rotation water circuit 8 includes a second water pumping circuit 81 and a second water outlet circuit 82, the second water pumping circuit 81 communicates the sea with the reverse rotation water inlet end 54, and the second water outlet circuit 82 communicates the forward rotation water inlet end 53 with the water tank 4; the first water suction pipe 71, the first water outlet pipe 72, the second water suction pipe 81, and the second water outlet pipe 82 are all provided with an on-off valve 9, the on-off valve 9 provided in the first water suction pipe 71 and the on-off valve 9 provided in the first water outlet pipe 72 are turned on in the forward rotation state, and the on-off valve 9 provided in the second water suction pipe 81 and the on-off valve 9 provided in the second water outlet pipe 82 are turned on in the reverse rotation state.

For example, as shown in fig. 5, the left side is the forward rotation water inlet end 53 of the water pump 5, the right side is the reverse rotation water inlet end 54 of the water pump 5, the vane 51 is rotated counterclockwise to the normal rotation state, rotated clockwise to the reverse rotation state, when the floating box 3 floats upwards to drive the blades 51 to rotate forwards (anticlockwise rotation in fig. 5), at this time, the first water pumping pipeline 71 and the through valve 9 on the first water outlet pipeline 72 are communicated, the water pump 5 generates a suction force at the forward rotation water inlet end 53 (left side in fig. 5) to pump water, seawater enters the water pump 5 from the forward rotation water inlet end 53 (left side in fig. 5) through the first water pumping pipeline 71, at this time, the water pump 5 discharges water at the reverse rotation water inlet end 54 (right side in fig. 5), and seawater in the water pump 5 enters the water tank 4 through the first water outlet pipeline 72;

similarly, as shown in fig. 6, when the floating box 3 sinks to drive the blades 51 to rotate reversely (clockwise rotation in fig. 6), the second water pumping pipeline 81 and the open/close valve 9 of the second water outlet pipeline 82 are connected, the water pump 5 generates suction force at the reverse rotation water inlet end 54 (right side in fig. 6) to pump water, seawater enters the water pump 5 through the second water pumping pipeline 81, the water pump 5 discharges water at the forward rotation water inlet end 53 (left side in fig. 6), and seawater in the water pump 5 enters the water tank 4 through the second water outlet pipeline 82. The setting of logical check valve 9 has guaranteed water pump 5 with the correspondence of rivers pipeline operating condition has improved the reliability of work, has guaranteed that the sea water is in orderly flow in the rivers pipeline, has avoided certain pipeline to cause the interference to other pipelines to and avoid the turbulent flow.

In the present embodiment, the type of the open/close valve 9 is not particularly limited as long as the open/close of the corresponding water path can be realized, and for example, the open/close valve 9 may be an electromagnetic valve whose open/close is controlled by electric control. In a preferred embodiment, as shown in fig. 5 to 6, the open/close valve 9 provided in the first pumping line 71 and the open/close valve 9 provided in the second pumping line 81 are both configured to be in one-way communication from the sea toward the water pump 5, and the open/close valve 9 provided in the first water outlet line 72 and the open/close valve 9 provided in the second water outlet line 82 are both configured to be in one-way communication from the water pump 5 toward the water tank 4; the through-stop valves 9 can be opened and closed automatically under the action of water pressure.

The check valve 9 is set to be of a one-way valve structure, so that water flow in each pipeline flows along a preset flow direction all the time, the situation that the water pump 5 reversely pumps water in the water tank 4 is avoided on the one hand, and on the other hand, the situation that the water flow flowing in two directions collides in the pipelines, so that turbulence is caused and normal water pumping operation is influenced is avoided.

In addition, one side of the through-stop valve 9 is provided with a stress surface, so that when the side is subjected to the pushing force of water flow, the side can be pushed to be conducted, and when the pushing force of the water flow is smaller, the through-stop valve 9 is reset to close a corresponding pipeline. When the other side of the through-stop valve 9 is stressed, no matter how water flow pushes the through-stop valve 9, the through-stop valve 9 cannot be conducted, so that one-way conduction is achieved, the through-stop valve 9 can automatically complete switching between conduction and closed states under the water flow pushing effect, manual control is not needed, automation of the power generation device is improved, the whole power generation process is automatically carried out, and use experience is improved.

Specifically, as shown in fig. 5 to 7, the first pumping line 71, the first water outlet line 72, the second pumping line 81 and the second water outlet line 82 have a mounting cavity 73, the open-close valve 9 is disposed in the mounting cavity 73, the open-close valve 9 includes a fixing frame 91, an elastic member 92 and a blocking member 93, the blocking member 93 is connected to the fixing frame 91 through the elastic member 92, the blocking member 93 is movable relative to the fixing frame 91, so that the open-close valve 9 has a closed state in which the blocking member 93 abuts against an inner wall of the mounting cavity 73, and a communication state in which the blocking member 93 is separated from the inner wall of the mounting cavity 73.

Preferably, as shown in fig. 7, the installation cavity 73 is provided at the water inlet thereof with an elastic fitting portion 731 fitted with the blocking piece 93, and the elastic fitting portion 731 abuts against the blocking piece 93 to completely seal the water inlet of the installation cavity 73.

Preferably, as shown in fig. 7, the force-bearing surface of the blocking piece 93 faces a preset water flow direction, so that the water flow can easily push the blocking piece 93 to move. When the plugging piece 93 is abutted against the inner wall of the installation cavity 73, the corresponding pipeline is plugged. The blocking piece 93 may be made of an elastic material, so that after the blocking piece abuts against the inner wall of the installation cavity 73, the blocking piece elastically deforms to block the corresponding pipeline, and the sealing effect is improved. Of course, the blocking member 93 may also be made of a hard material and provided with a layer of elastic sealing member on its stressed surface to achieve abutting sealing.

When the through-stop valve 9 is pushed by water flow on one side of the blocking piece 93, the elastic piece 92 is compressed, so that the blocking piece 93 moves towards the fixing frame 91 and further separates from the inner wall of the mounting cavity 73 to conduct the pipeline, and when the water flow pushing force is smaller than the elastic force of the elastic piece 92, the blocking piece 93 is pushed by the elastic piece 92 to reset, and the blocking state is recovered. On the other hand, if the opening/closing valve 9 is pressed against the fixing frame 91, the fixing frame 91 is fixed in position and cannot be opened. The one-way conduction and the automatic opening and closing of the through-stop valve 9 are realized, the water flow is ensured to flow in the water flow pipeline along the preset water pumping direction all the time, and the seawater backflow is prevented. Moreover, labor force is saved, the opening and closing of the through-stop valve 9 are not required to be controlled manually, the automation is improved, and the use experience is improved.

As a preferred embodiment of the present application, as shown in fig. 5 to 6, the water pump 5 further has a rotating shaft 52, the plurality of blades 51 are arranged around the rotating shaft 52 at intervals, the blades 51 have a proximal end close to the rotating shaft 52 and a distal end far from the rotating shaft 52, and the width of the proximal end is smaller than that of the distal end.

Specifically, as shown in fig. 5 to 6, the blade 51 has a fan shape.

The width of the near end is small, so that on one hand, the gap between every two adjacent blades 51 is increased, the water pumping amount of the water pump 5 is increased, more seawater can be stored between every two adjacent blades 51, and the water pumping efficiency is improved. On the other hand, the gap between two adjacent blades 51 is gradually increased from the far end to the near end, so that water flows to the center of the rotating shaft 52 through the guiding of the stressed arc 511, and the water pump 5 has a certain water storage capacity, when the water pump 5 normally works, it is necessary to ensure that water is always in the water pump, otherwise the water pump 5 sucks air into the water pump, which affects the pumping efficiency, since the floating box 3 frequently floats up and down under the pushing of sea waves, and then the water pump 5 is frequently switched between the forward rotation state and the reverse rotation state, when the water pump 5 rotates, a part of water is left between two adjacent blades 51, so that when the water pump 5 switches the rotation direction, it is ensured that water is always in the water pump 5, so that the water pump 5 maintains good working performance, and air is prevented from entering the water pump 5, affecting the normal operation of the water pump 5.

The number of the blades 51 is not specifically limited in the present application, and may be 4 blades as shown in fig. 5 to 6, or may be set to other numbers according to actual use requirements.

The present application does not specifically limit the transmission manner between the floating box 3 and the water pump 5, and in a preferred embodiment, as shown in fig. 2, 3 and 8, one of the machine body 2 and the floating box 3 is provided with a rack 31 extending in a vertical direction, and the other of the machine body 2 and the floating box 3 is provided with a gear 22 engaged with the rack 31, the gear 22 is engaged with the rack 31 to limit the movement of the floating box 3 in the vertical direction, and the gear 22 drives the blade 51 to rotate.

The rack 31 and the gear 22 are matched to guide the floating box 3, so that the floating box 3 always moves in the vertical direction, the movement reliability and the power generation efficiency are improved, and meanwhile, the gear 22 and the rack 31 have large transmission force and ensure the transmission efficiency.

Preferably, as shown in fig. 1 to 2, each floating box 3 is provided with four sets of gears 22 and racks 31 which are mutually matched, and each set of the gears 22 and the racks 31 is provided with one water pump 5.

In the present embodiment, the arrangement positions of the gear 22 and the rack 31 are not particularly limited, and may be one of the following embodiments:

example 1: in the present embodiment, as shown in fig. 8 to 9, the rack 31 is provided to the body 2, and the gear 22 is provided to the float tank 3.

In this embodiment, the gear 22 may drive the water pump 5 to rotate through a shaft rod capable of extending and retracting.

Preferably, as shown in fig. 8 to 9, the machine body 2 includes a plurality of support columns 21, the support columns 21 surround the floating box 3 at intervals, each support column 21 is provided with the rack 31, and the floating box 3 is correspondingly provided with a plurality of gears 22, so that a matching structure of the rack and the gear is formed in each circumferential region of the floating box 3, the guiding effect on the movement of the floating box 3 is improved, the movement of the floating box 3 is more stable, and the inclination is prevented.

Example 2: in the present embodiment, as shown in fig. 2 to 3, the rack 31 is disposed on the floating box 3, and the gear 22 is disposed on the machine body 2.

In this embodiment, the gear 22 is fixed to the machine body 2, so that the gear 2 only rotates around the axis and does not move relative to the machine body 2, the stability of the relative position between the gear 22 and the machine body 2 is improved, the gear 22 and the water pump 5 can be coaxially arranged, and the rotation of the gear 22 is utilized to drive the water pump 5 to rotate.

Preferably, as shown in fig. 3, the machine body 2 is provided with a fixed gear 221 and a driving gear 222, the rack 31 is a double-sided rack, the fixed gear 221 and the driving gear 222 are respectively located on both sides of the rack 31 and are both engaged with the rack 31, and the fixed gear 221 and the driving gear 222 are both fixed in position relative to the machine body 2 and can only rotate.

The fixed gear 221 serves to guide the movement of the rack 31 and the floating box 3 and serves as a limit so that the rack 31 and the floating box move in the extension direction of the engaged teeth, and the driving gear 222 serves to drive the water pump 5 to rotate.

Further, as shown in fig. 2 to 3, the machine body 2 further includes a supporting column 21, an upper limiting portion 23, and a lower limiting portion 24, the upper limiting portion 23, the lower limiting portion 24, and the supporting column 21 together enclose a floating space for the floating box 3 to move, the floating box 3 is disposed in the floating space, the gear 22 or the rack 31 is disposed on the supporting column 21, and an accommodating channel is disposed inside the supporting column 21.

The support column 21, the upper limit portion 23 and the lower limit portion 24 together enclose the floating space, so as to limit the movement range of the floating box 3 in the floating space, and at the same time, the support column 21 also plays a role in supporting and guiding the floating box 3 to move, as shown in fig. 2, the water tank 4 is disposed at the top of the machine body 2, so as to raise the water tank 4, so that water flows down to drive the generator set 6 to run and generate power by using a height difference, and the support column 21 supports the water tank 4 to keep stable.

The supporting column 21 is internally provided with the accommodating channel, so that various pipelines can be conveniently arranged in the accommodating channel 21, the supporting column 21 can protect the pipelines, and the pipelines are prevented from being exposed to the outside and damaged to cause water leakage. And meanwhile, the arrangement of pipelines is optimized, and the structural compactness is improved.

Further, as shown in fig. 2 and 10, the lower retainer 24 is provided with a retainer opening 25, and when the floating box 3 contacts the lower retainer 24, a partial region of the floating box 3 is placed in the retainer opening 25.

The arrangement of the limit opening 25 facilitates seawater to flow up to the floating space from the limit opening 25, and pushes the floating box 3 from the bottom of the floating box 3, so that the floating box 3 floats by vertical upward thrust, and the floating box 3 is prevented from being deviated or normal transmission of a transmission structure is prevented from being influenced by large horizontal thrust, which causes the position of the floating box 3. On the other hand, when the floating box 3 sinks to the bottom due to weather, the limit opening 25 can form a limit stop for the floating box 3, so that the position of the floating box 3 is more stable, and the floating box is prevented from falling off or being damaged due to larger transverse impact force of sea waves.

Preferably, as shown in fig. 10, the bottom surface of the floating box 3 has a floating plane 32 and water diversion slopes 33, the water diversion slopes 33 are located on both sides of the floating plane 32, so that the bottom surface of the floating box 3 is similar to a ship shape, which is more beneficial to the floating movement and the smoothness of the movement of the floating box 3, the water diversion slopes 33 guide part of the seawater to the outside, part of the seawater is in contact with the floating plane 32 and pushes the floating box 3 vertically upwards, and the seawater in contact with the water diversion slopes 33 also forms inward pushing forces on both sides of the floating box 3, thereby clamping the floating box 3 to float up and down in a stable posture and avoiding tipping. Meanwhile, the resistance of the floating box 3 to sea waves can be reduced, and the up-and-down floating efficiency of the floating box 3 is improved.

Further, as shown in fig. 10, the opening area of the limiting opening 25 is larger than the area of the floating plane 32 and smaller than the area of the projection of the floating plane 32 and the water diversion slope 33 on the horizontal plane, that is, the projection of the limiting opening 25 toward the floating box 3 covers the floating plane 32 and a part of the water diversion slope 33. So that when the floating box 3 sinks to the bottom, the floating box 3 does not completely pass through the limit opening 25, and only a partial area of the floating box 3 passes through the limit opening 25, so that the inner circumference of the limit opening 25 stops the floating box 3 to limit the floating box.

As a preferred embodiment of the present application, as shown in fig. 10, the floating box 3 has a receiving cavity 34 inside, and a water inlet valve and a water discharge valve are provided at the bottom of the floating box 3.

When the weather is typhoon, the water inlet valve can be opened, so that the floating box 3 is filled with seawater and sinks below the sea level, the floating box 3 is prevented from being damaged due to typhoon attack, and when the weather condition is good, the water discharge valve is opened to discharge the seawater in the accommodating cavity 34, so that the floating function is recovered, the service life of the floating box 3 is prolonged, the capacity of the power generation device for dealing with complex weather environments is improved, and the applicability is improved.

Where not mentioned in this application, can be accomplished using or referencing existing technology.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A wave power plant comprising at least one power generating unit, characterized in that the power generating unit comprises:

a body;

the floating box can float up and down relative to the machine body under the buoyancy action of seawater;

the water tank is provided with a drain pipe, the drain pipe is provided with a water inlet end and a water outlet end, and the position of the water inlet end is higher than that of the water outlet end;

the generator set is arranged on the drain pipe;

the water pump is provided with blades, and both sides of each blade in the rotation direction of the water pump are provided with inwards-concave stressed cambered surfaces so that the water pump is driven by the floating box to have a forward rotation state and a reverse rotation state; and

the water flow pipeline comprises a forward rotation water path and a reverse rotation water path, the forward rotation water path and the reverse rotation water path are sequentially communicated with the sea, the water pump and the water tank, in the forward rotation state, seawater enters the water tank through the forward rotation water path, and in the reverse rotation state, seawater enters the water tank through the reverse rotation water path.

2. A wave power plant as set forth in claim 1,

the water pump is provided with a forward rotation water inlet end and a reverse rotation water inlet end, the forward rotation water path comprises a first water pumping pipeline and a first water outlet pipeline, the first water pumping pipeline is communicated with the sea and the forward rotation water inlet end, the first water outlet pipeline is communicated with the reverse rotation water inlet end and the water tank, the reverse rotation water path comprises a second water pumping pipeline and a second water outlet pipeline, the second water pumping pipeline is communicated with the sea and the reverse rotation water inlet end, and the second water outlet pipeline is communicated with the forward rotation water inlet end and the water tank;

the first water pumping pipeline, the first water outlet pipeline, the second water pumping pipeline and the second water outlet pipeline are all provided with a through-off valve, the through-off valve arranged on the first water pumping pipeline is communicated with the through-off valve arranged on the first water outlet pipeline in the forward rotation state, and the through-off valve arranged on the second water pumping pipeline is communicated with the through-off valve arranged on the second water outlet pipeline in the reverse rotation state.

3. A wave power plant as set forth in claim 2,

the on-off valve arranged on the first water pumping pipeline and the on-off valve arranged on the second water pumping pipeline are both in one-way conduction from the sea to the water pump direction, and the on-off valve arranged on the first water outlet pipeline and the on-off valve arranged on the second water outlet pipeline are both in one-way conduction from the water pump to the water tank direction; the through-stop valves can be automatically opened and closed under the action of water pressure.

4. A wave power plant as set forth in claim 3,

5. A wave power plant as set forth in claim 1,

6. A wave power plant as set forth in claim 1,

7. A wave power plant as set forth in claim 6,

8. A wave power plant as set forth in claim 7,

9. A wave power plant as set forth in claim 1,

10. A wave power plant as set forth in claim 1,