CN110206678B - Piston type wave energy still water layer power generation device - Google Patents
Piston type wave energy still water layer power generation device Download PDFInfo
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- CN110206678B CN110206678B CN201910442490.3A CN201910442490A CN110206678B CN 110206678 B CN110206678 B CN 110206678B CN 201910442490 A CN201910442490 A CN 201910442490A CN 110206678 B CN110206678 B CN 110206678B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 259
- 238000010248 power generation Methods 0.000 title claims abstract description 63
- 238000007667 floating Methods 0.000 claims abstract description 62
- 230000003068 static effect Effects 0.000 claims abstract description 9
- 239000008400 supply water Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 11
- 230000009471 action Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/22—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the flow of water resulting from wave movements to drive a motor or turbine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4466—Floating structures carrying electric power plants for converting water energy into electric energy, e.g. from tidal flows, waves or currents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a piston type wave energy static water layer power generation device which comprises a piston cylinder, wherein the piston cylinder comprises a cylinder body, a piston and a piston rod, the piston rod is a hollow pipe, the lower end of the piston rod is communicated with a lower cavity of the piston cylinder, the upper end of the piston rod is connected with a power generation seat, an impeller and a power generator through a rigid water pipe, a floating module consisting of an upper floating body, a water absorption module and a lower floating body is fixed below the power generation seat on the rigid water pipe, a static water plate is transversely arranged at the lower end of the cylinder body, an anti-rotation plate is longitudinally arranged at the lower end of the cylinder body, a first one-way valve for opening water supply to flow into the lower cavity when the piston is pulled up is arranged at the bottom of the cylinder body, a second one-way valve for opening water supply to flow into the upper cavity when the piston is pulled down is arranged at the top of the cylinder rod, a third one-way valve for opening water in the upper cavity of the piston cylinder when the piston is pulled down is arranged above the piston rod, and the floating module is lifted up and used for driving the impeller to rotate to generate power through the upper and lower fluctuation of the piston in the wave.
Description
[ field of technology ]
The invention relates to a piston type wave energy still water layer power generation device.
[ background Art ]
The ocean occupies about 71% of the earth's surface area, and the continental coastline is also very wide, and the ocean contains a great deal of wave energy, which is renewable energy and is vivid. At present, the research and the utilization of wave energy are increasingly valuable due to the increasingly-shortage of conventional energy and the increasingly-sharp contradiction between environmental protection and economic development.
The present invention has been made based on this situation.
[ invention ]
The invention aims to solve the technical problem of providing a piston type wave energy still water layer power generation device with simple structure and high wave energy conversion rate.
In order to solve the technical problems, the invention relates to a piston type wave energy still water layer power generation device, which is characterized in that: comprises a piston cylinder 1, the piston cylinder 1 comprises a cylinder body 10, a piston 11 and a piston rod 12, the piston 11 is positioned in the cylinder body 10 and divides the cylinder body 10 into an upper cavity 101 and a lower cavity 102, the lower end of the piston rod 12 is connected with the piston 11, the upper end of the piston rod penetrates out of the upper part of the cylinder body 10, the piston rod 12 is of a hollow tubular structure, the lower end of the piston rod 12 is communicated with the lower cavity 102, the upper end of the piston rod 12 is connected with a rigid water pipe 2 communicated with the piston rod 12, the upper end of the rigid water pipe 2 is connected with a power generation seat 3, the upper end of the power generation seat 3 is provided with a concave impeller cavity 31, the upper end of the power generation seat 3 is detachably connected with a cover plate 4 capable of covering the impeller cavity 31 from the upper end, the bottom of the cover plate 4 is provided with an impeller 41 arranged in the impeller cavity 31, the top of the cover plate 4 is provided with a power generator 42 capable of generating power when the impeller 41 rotates, the power generation seat 3 is provided with a water inlet 32 which can feed water from the side surface into the impeller cavity 31 and impel the impeller 41 to rotate, and a water outlet 35 which can enable water in the impeller cavity 31 to flow out, the bottom of the power generation seat 3 is provided with a connecting port 33 connected with the upper end of the rigid water pipe 2, the power generation seat 3 is internally provided with a water flow channel 34 used for communicating the connecting port 33 and the water inlet 32, the rigid water pipe 2 is positioned below the power generation seat 3 and is sequentially provided with an upper floating body 51, a water absorption module 52 and a lower floating body 53 from top to bottom, the upper floating body 51 is used for floating on the water surface, the water absorption module 52 is used for immersing in water to automatically absorb water, the lower floating body 53 is used for providing buoyancy when immersing the power generation device is put on the static water surface, the water surface is kept between the combined horizontal surfaces of the upper floating body 51 and the water absorption module 52, the lower end of the cylinder 10 is transversely provided with a static water plate 103 used for preventing the cylinder 10 from floating up and down in the water, the stationary water plate 103 is provided with a plurality of anti-rotation plates 104 which are longitudinally arranged and used for preventing the cylinder body 10 from rotating in water, the anti-rotation plates 104 are uniformly arranged around the circumference of the cylinder body 10, the bottom of the cylinder body 10 is provided with a first one-way valve 6 which is opened when the piston 11 is pulled up to enable water to flow into the lower cavity 102 from the bottom of the cylinder body 10, the top of the cylinder body 10 is provided with a second one-way valve 7 which is opened when the piston 11 is pressed down to enable water to flow into the upper cavity 101 from the top of the cylinder body 10, and the piston rod 12 is arranged above the piston 11 and is provided with a third one-way valve 8 which is opened when the piston 11 is pulled up to enable water in the upper cavity 101 to flow into the piston rod 12 and is closed when the piston 11 is pressed down.
The piston type wave energy still water layer power generation device is characterized in that: a plurality of water baffles 531 are longitudinally arranged around the circumference on the side surface of the lower floating body 53 and used for preventing the lower floating body 53 from rotating in water.
The piston type wave energy still water layer power generation device is characterized in that: the water absorbing module 52 adopts a water tank with water inlet and outlet holes at the upper and lower parts.
The piston type wave energy still water layer power generation device is characterized in that: the first check valve 6 comprises a bottom water inlet hole 61 formed in the bottom of the cylinder body 10 and a first rubber mat 62 connected to the inner bottom of the lower cavity 102, wherein the middle part of the first rubber mat 62 is fixedly connected with the bottom of the lower cavity 102, and the bottom water inlet hole 61 is multiple and is located between the middle part and the outer edge of the first rubber mat 62.
The piston type wave energy still water layer power generation device is characterized in that: the cylinder body 10 comprises a cylinder 105 and a cylinder cover 106, a rod hole 107 for the piston rod 12 to pass through is formed in the cylinder cover 106, the second one-way valve 7 comprises a top water inlet hole 71 formed in the cylinder cover 106 and a second rubber pad 72 which is connected to the inner top of the cylinder cover 106 and sleeved on the annular structure outside the piston rod 12, the inner edge of the second rubber pad 72 is fixedly connected with the inner top of the cylinder cover 106, and a plurality of top water inlet holes 71 are formed between the inner edge and the outer edge of the second rubber pad 72.
The piston type wave energy still water layer power generation device is characterized in that: the third one-way valve 8 comprises a side water inlet hole 81 formed in the side surface of the piston rod 12 and a third rubber pad 82 arranged in the piston rod 12 and used for blocking the side water inlet hole 81, wherein the lower part of the third rubber pad 82 is fixed below the side water inlet hole 81, and the middle part and the upper part are freely arranged.
The piston type wave energy still water layer power generation device is characterized in that: the water inlet 32 is arranged eccentrically.
The piston type wave energy still water layer power generation device is characterized in that: the side edges of the vanes 411 are adjacent to the side walls of the impeller chamber 31.
Compared with the prior art, the invention has the following advantages:
1. by placing the still water plate 103 and the anti-rotation plate 104 in the still water layer D, the upper floating body 51 floats on the water surface C, the lower floating body 53 is immersed under the water surface C and is completely immersed in water, the power generation device floats after balance is achieved, the water absorption module 52 positioned between the upper floating body 51 and the lower floating body 53 is immersed in water and absorbs water automatically to increase the balance weight of the floating module consisting of the upper floating body 51, the water absorption module 52 and the lower floating body 53, the floating module rises and falls along with the fluctuation of waves, and the cylinder 10 floats very little under the action of the still water plate 103 positioned in the still water layer D; when the floating module falls, the piston rod 12 and the piston 11 are pressed down through the rigid water pipe 2, the piston 11 is pressed down in the cylinder body 10, the first one-way valve 6 is closed, water in the lower cavity 102 enters the piston rod 12 from the lower end of the piston rod 12, the water pressure in the piston rod 12 is increased, the third one-way valve 8 is closed, the water flow ascends along the piston rod 12 and the rigid water pipe 2 and enters the power generation seat 3, and rushes into the impeller cavity 31 through the water inlet 32, the impulse impeller 41 rotates and flows out from the water outlet 35, and the power generator 42 is driven to generate power when the impeller 41 rotates. In addition, the piston 11 moves downward, the upper chamber 101 becomes large, and the second check valve 7 opens for external water to flow into the upper chamber 101 from the top of the cylinder 10; when the floating module is lifted, the piston 11 is lifted upwards in the cylinder body 10, the first one-way valve 6 is opened to enable water in the water static layer to flow into the lower cavity 102, the water pressure in the upper cavity 101 is raised, the second one-way valve 7 is closed, the third one-way valve 8 is opened to enable water in the upper cavity 101 to flow into the piston rod 12, meanwhile, the water flow pushes the middle part and the upper part of the third rubber pad 82 to turn over and block in the piston rod 12 to block the interior of the piston rod 12, water in the upper cavity 101 is prevented from flowing into the lower cavity 102 through the side water inlet 81, water in the upper cavity 101 is enabled to enter the power generation seat 3 through the side water inlet 81 and then ascend along the piston rod 12 and the rigid water pipe 2, and is enabled to flow into the impeller cavity 31 through the water inlet 32, the impeller 41 is enabled to rotate and flows out of the water outlet 35, the generator 42 is driven to generate power when the impeller 41 rotates, the floating module is enabled to push the impeller 41 to rotate in the processes of floating and falling, and the stability of power generation and the utilization rate of wave energy are improved.
2. The anti-rotation plate 104 is provided to effectively block water in the transverse direction in order to prevent the cylinder 10 from rotating in water; the side of the lower floating body 53 is provided with a plurality of longitudinally arranged water baffle plates 531 around the circumference, and the transverse water baffle plates 531 can improve the resistance of the floating module rotating in water and effectively prevent the floating module from rotating in water. By preventing the cylinder body 10 and the floating module from rotating in the water, respectively, the piston cylinder 1 can perform a better piston movement when the floating module floats with the fluctuation of waves.
3. The piston type wave energy still water layer power generation device has the advantages of simple structure, convenient manufacture, automatic pumping and power generation along with fluctuation of waves, convenient use and contribution to popularization.
[ description of the drawings ]
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of a piston type wave energy still water layer power generation device;
FIG. 2 is an exploded view of a piston type wave energy still water power generation device of the present invention;
FIG. 3 is a top view of the mating structure of the impeller and impeller cavity of a piston type wave energy still water layer power generation device of the present invention when the cover plate and generator are removed;
FIG. 4 is a cross-sectional view of a piston-type wave energy still water layer power generation apparatus of the present invention taken along the direction A-A in FIG. 3 in a state of pulling up the piston;
fig. 5 is a partial enlarged view B in fig. 4;
FIG. 6 is a cross-sectional view of a piston-type wave energy still water layer power generation apparatus of the present invention taken along the direction A-A in FIG. 3 in a depressed piston state;
fig. 7 is a view showing a state of use of a piston type wave energy still water layer power generation device according to the present invention.
[ detailed description ] of the invention
The invention is further described below with reference to the accompanying drawings:
a piston type wave energy still water layer power generation device as shown in fig. 1 to 6 comprises a piston cylinder 1, wherein the piston cylinder 1 comprises a cylinder body 10, a piston 11 and a piston rod 12, the piston 11 is positioned in the cylinder body 10 and divides the cylinder body 10 into an upper cavity 101 and a lower cavity 102, the lower end of the piston rod 12 is connected with the piston 11, the upper end of the piston rod passes through the upper part of the cylinder body 10, the piston rod 12 is of a hollow tubular structure, the lower end of the piston rod 12 is communicated with the lower cavity 102, the upper end of the piston rod 12 is connected with a rigid water pipe 2 communicated with the piston rod 12, the upper end of the rigid water pipe 2 is connected with a power generation seat 3, the upper end of the power generation seat 3 is provided with a concave impeller cavity 31, the upper end of the power generation seat 3 is detachably connected with a cover plate 4 capable of covering the impeller cavity 31 from the upper end, the bottom of the cover plate 4 is provided with an impeller 41 which is arranged in the impeller cavity 31, the top of the cover plate 4 is provided with a generator 42 which can generate electricity when the impeller 41 rotates, the power generation seat 3 is provided with a water inlet 32 which can feed water into the impeller cavity 31 from the side and impel the impeller 41 to rotate, and a water outlet 35 which can flow out of the water in the impeller cavity 31, the bottom of the power generation seat 3 is provided with a connecting port 33 connected with the upper end of a rigid water pipe 2, the power generation seat 3 is internally provided with a water flow channel 34 which is used for communicating the connecting port 33 and the water inlet 32, the rigid water pipe 2 is positioned below the power generation seat 3, an upper floating body 51, a water absorption module 52 and a lower floating body 53 are sequentially fixed on the rigid water pipe 2 from top to bottom, the upper floating body 51 is used for floating on the water surface, the water absorption module 52 is used for immersing in water to automatically absorb water, the lower floating body 53 is used for providing buoyancy under the water surface and keeping the water surface between the combined horizontal planes of the upper floating body 51 and the water absorption module 52 when the power generation device is put on the static water surface, the lower end of the cylinder body 10 is transversely provided with a still water plate 103 for preventing the cylinder body 10 from floating up and down in water, the still water plate 103 is provided with a plurality of anti-rotation plates 104 which are longitudinally arranged and used for preventing the cylinder body 10 from rotating in water, the anti-rotation plates 104 are uniformly arranged around the circumference of the cylinder body 10, the bottom of the cylinder body 10 is provided with a first one-way valve 6 which is opened when the piston 11 is pulled up to enable water to flow into the lower cavity 102 from the bottom of the cylinder body 10, the top of the cylinder body 10 is provided with a second one-way valve 7 which is opened when the piston 11 is pressed down to enable water to flow into the upper cavity 101 from the top of the cylinder body 10, the piston rod 12 is arranged above the piston 11, and the piston rod 12 is provided with a third one-way valve 8 which is opened when the piston 11 is pulled up to enable water in the upper cavity 101 to flow into the piston rod 12 and is closed when the piston 11 is pressed down.
In use, as shown in fig. 7, the still water plate 103 and the anti-rotation plate 104 are placed in the still water layer D, the lower floating body 53 is immersed under the water surface C, the water absorbing module 52 positioned between the upper floating body 51 and the lower floating body 53 is immersed in water and automatically absorbs water, and then is immersed in water, the upper floating body 51 floats on the water surface C, the power generating device floats after equilibrium is achieved, and when the water surface is stationary, the water surface is kept between the combined water levels of the upper floating body 51 and the water absorbing module 52, the weight of the floating module composed of the upper floating body 51, the water absorbing module 52 and the lower floating body 53 is increased after the water absorbing module 52 absorbs water, preferably, the water absorbing module 52 adopts a water tank with water inlet and outlet holes. In waves, when the upper float 51 falls into the water, the buoyancy increases, providing an upward pulling force of the piston rod 12; when the water absorption module 52 breaks through the water surface and is exposed to the water surface, the weight of the water absorption module 52 increases, so that the floating module is sunk downwards, and the piston rod 12 is provided with a downward pressure.
The first check valve 6 comprises a bottom water inlet hole 61 formed in the bottom of the cylinder body 10 and a first rubber mat 62 connected to the inner bottom of the lower cavity 102, wherein the middle part of the first rubber mat 62 is fixedly connected with the bottom of the lower cavity 102, the bottom water inlet holes 61 are multiple and are positioned between the middle part and the outer edge of the first rubber mat 62, and the first rubber mat 62 is automatically covered on the bottom water inlet holes 61 or separated from the bottom water inlet holes 61 through water pressure change so as to open or close the water inlet function of the bottom water inlet holes 61.
The cylinder body 10 comprises a cylinder 105 and a cylinder cover 106, a rod hole 107 for the piston rod 12 to pass through is arranged on the cylinder cover 106, the second one-way valve 7 comprises a top water inlet hole 71 arranged on the cylinder cover 106 and a second rubber mat 72 which is connected to the inner top of the cylinder cover 106 and sleeved on the annular structure outside the piston rod 12, the inner edge of the second rubber mat 72 is fixedly connected with the inner top of the cylinder cover 106, a plurality of top water inlet holes 71 are arranged between the inner edge and the outer edge of the second rubber mat 72, and the second rubber mat 72 is automatically covered on the top water inlet holes 71 or separated from the top water inlet holes 71 through water pressure change so as to open or close the water inlet function of the top water inlet holes 71.
The third check valve 8 comprises a side water inlet hole 81 formed in the side surface of the piston rod 12 and a third rubber pad 82 arranged in the piston rod 12 and used for blocking the side water inlet hole 81, the lower part of the third rubber pad 82 is fixed below the side water inlet hole 81, the middle part and the upper part of the third rubber pad are freely arranged, and the third rubber pad 82 is automatically covered on the side water inlet hole 81 or separated from the side water inlet hole 81 through water pressure change so as to open or close the water inlet function of the side water inlet hole 81. Meanwhile, when the piston rod 12 is pulled up, under the action of water pressure, after the water inlet hole 81 is opened, the middle and upper parts of the third rubber pad 82 are turned back and forth until the upper part of the third rubber pad 82 is blocked on the side surface of the water inlet hole 81 on the opposite side of the piston rod 12, and the internal channel of the piston rod 12 is blocked from below the water inlet hole 81. And the piston rod 12 is composed of a square short pipe 120 at the lower part and a round pipe at the middle upper part, the side water inlet hole 81 and the third rubber pad 82 are arranged on the same side surface of the square short pipe 120, and the side water inlet hole 81 and the third rubber pad 82 are simple in installation structure and convenient to manufacture as the side surface of the square short pipe 120 is a plane, and the stability of the opening and closing fit of the side water inlet hole 81 and the third rubber pad 82 is good.
The floating module rises and falls along with the fluctuation of waves, as shown in fig. 6, when the floating module falls, the piston rod 12 and the piston 11 are pressed down through the rigid water pipe 2, the cylinder body 10 floats very little under the action of the still water plate 103 positioned in the still water layer D, the piston 11 falls downwards in the cylinder body 10, the first one-way valve 6 is closed, water in the lower cavity 102 enters the piston rod 12 from the lower end of the piston rod 12, the water pressure in the piston rod 12 rises, the third one-way valve 8 is closed, water flows along the piston rod 12 and the rigid water pipe 2 to enter the power generation seat 3 and is flushed into the impeller cavity 31 through the water inlet 32, the impulse impeller 41 rotates and flows out from the water outlet 35, and the generator 42 is driven to generate power when the impeller 41 rotates. In addition, the piston 11 moves downward, the upper chamber 101 becomes large, and the second check valve 7 opens for external water to flow into the upper chamber 101 from the top of the cylinder 10.
As shown in fig. 4 and 5, when the floating module is lifted, the piston rod 12 and the piston 11 are pulled by the rigid water pipe 2 to lift, the cylinder 10 floats very little under the action of the still water plate 103 positioned in the still water layer D, the piston 11 is lifted upwards in the cylinder 10, the first one-way valve 6 is opened to supply water in the still water layer to the lower cavity 102, the water pressure in the upper cavity 101 is lifted, the second one-way valve 7 is closed, the third one-way valve 8 is opened to supply water in the upper cavity 101 to the piston rod 12, meanwhile, the water flow pushes the middle part and the upper part of the third rubber cushion 82 to turn over and block in the piston rod 12, the inside of the piston rod 12 is blocked, the water in the upper cavity 101 is prevented from flowing into the lower cavity 102 through the side water inlet hole 81, the water in the upper cavity 101 is enabled to flow into the power generation seat 3 along the piston rod 12 and the rigid water pipe 2 after flowing into the side water inlet hole 81, and flows into the impeller cavity 31 through the water inlet 32, the impeller 41 rotates and flows out of the water outlet 35, the generator 42 is driven to generate power when the impeller 41 rotates, the floating module pushes the impeller 41 to rotate in the up and down process, and the stability of power generation and the energy utilization rate of wave are improved.
The anti-rotation plate 104 is provided to effectively block water in the transverse direction in order to prevent the cylinder 10 from rotating in water; the side of the lower floating body 53 is provided with a plurality of longitudinally arranged water baffle plates 531 around the circumference, and the transverse water baffle plates 531 can improve the resistance of the floating module rotating in water and effectively prevent the floating module from rotating in water. By preventing the cylinder 10 and the float module, respectively, from rotating in the water, the piston cylinder 1 is better able to perform a piston movement when the float module floats in the wave.
The water inlet 32 is eccentrically arranged and laterally fed so as to better utilize the kinetic energy of the water to drive the impeller 41 to rotate.
The side edges of the blades 411 of the impeller 41 are close to the side wall of the impeller chamber 31, so that water which is flushed into the impeller chamber 31 is better gathered between two adjacent blades 411 and the inner wall of the impeller chamber 31, and flows out again when the two blades 411 rotate to the water outlet 35, so that the water pumped by the piston cylinder 1 is more fully utilized.
Claims (8)
1. A piston type wave energy still water layer power generation device is characterized in that: including piston cylinder (1), piston cylinder (1) includes cylinder body (10), piston (11) and piston rod (12), piston (11) are arranged in cylinder body (10) and divide into upper chamber (101) and lower chamber (102) with cylinder body (10), piston rod (12) lower extreme is connected with piston (11), and the upper end wears out in cylinder body (10) top, piston rod (12) are hollow tubular structure and lower extreme and lower chamber (102) are linked together, piston rod (12) upper end is connected with rigid water pipe (2) that are linked together with piston rod (12), rigid water pipe (2)'s upper end is connected with power generation seat (3), power generation seat (3) upper end is equipped with concave impeller chamber (31), power generation seat (3) upper end can be dismantled and be connected with and can cover impeller chamber (31) apron (4) from the upper end, apron (4) bottom is equipped with impeller (41) of packing into in impeller chamber (31), impeller (4) top is equipped with when impeller (41) are rotated and is linked together with generator (41) and can supply water inlet (41) to impeller (31) in order to rotate in impeller (41) and to flow out water inlet (32), the utility model provides a hydraulic power generation device, which is characterized in that a connecting port (33) connected with the upper end of a rigid water pipe (2) is arranged at the bottom of the power generation seat (3), a water flow channel (34) used for communicating the connecting port (33) with a water inlet (32) is arranged in the power generation seat (3), an upper floating body (51), a water absorbing module (52) and a lower floating body (53) are sequentially fixed below the power generation seat (3) from top to bottom on the rigid water pipe (2), the upper floating body (51) is used for floating on the water surface, the water absorbing module (52) is used for immersing in water to automatically absorb water, the lower floating body (53) is used for providing buoyancy under the water surface and enabling the water surface to be kept between the upper floating body (51) and the water absorbing module (52) when the power generation device is put on the static water surface, a static water plate (103) used for preventing the cylinder body (10) from floating up and down in the water is transversely arranged at the lower end of the cylinder body (10), a plurality of rotary-preventing plates (104) which are longitudinally arranged and used for preventing the cylinder body (10) from rotating in the water are arranged on the static water plate (103), a plurality of rotary-preventing plates (104) are arranged on the cylinder body (10) and are provided with a plurality of rotary-preventing piston plates (102) which are arranged on the bottom (10) in a circumferential direction, when a piston (10) and a bottom opening valve (11) is arranged on the bottom (10), the top of the cylinder body (10) is provided with a second one-way valve (7) which is opened when the piston (11) is pressed down to supply water to flow into the upper cavity (101) from the top of the cylinder body (10), the piston rod (12) is arranged above the piston (11), and a third one-way valve (8) which is opened when the piston (11) is pulled up to flow into the piston rod (12) in the upper cavity (101) and is closed when the piston (11) is pressed down is arranged on the piston rod (12).
2. The piston type wave energy still water layer power generation device according to claim 1, wherein: a plurality of water baffles (531) which are longitudinally arranged and used for preventing the lower floating body (53) from rotating in water are arranged on the side surface of the lower floating body (53) around the circumference.
3. The piston type wave energy still water layer power generation device according to claim 1, wherein: the water absorbing module (52) adopts a water tank with water inlet and outlet holes at the upper and lower parts.
4. The piston type wave energy still water layer power generation device according to claim 1, wherein: the first one-way valve (6) comprises a bottom water inlet hole (61) formed in the bottom of the cylinder body (10) and a first rubber pad (62) connected to the inner bottom of the lower cavity (102), the middle part of the first rubber pad (62) is fixedly connected with the bottom of the lower cavity (102), and the bottom water inlet hole (61) is multiple and is located between the middle part and the outer edge of the first rubber pad (62).
5. The piston type wave energy still water layer power generation device according to claim 1, wherein: the cylinder body (10) comprises a cylinder barrel (105) and a cylinder cover (106), a rod hole (107) for a piston rod (12) to pass through is formed in the cylinder cover (106), the second one-way valve (7) comprises a top water inlet hole (71) formed in the cylinder cover (106) and a second rubber pad (72) which is connected to the inner top of the cylinder cover (106) and sleeved on the annular structure outside the piston rod (12), the inner edge of the second rubber pad (72) is fixedly connected with the inner top of the cylinder cover (106), and the top water inlet hole (71) is multiple and located between the inner edge and the outer edge of the second rubber pad (72).
6. The piston type wave energy still water layer power generation device according to claim 1, wherein: the third one-way valve (8) comprises a side water inlet hole (81) formed in the side face of the piston rod (12) and a third rubber pad (82) arranged in the piston rod (12) and used for blocking the side water inlet hole (81), wherein the lower part of the third rubber pad (82) is fixed below the side water inlet hole (81), and the middle part and the upper part are arranged freely.
7. The piston type wave energy still water layer power generation device according to claim 1, wherein: the water inlet (32) is eccentrically arranged.
8. The piston type wave energy still water layer power generation device according to claim 1, wherein: the side edges of the blades (411) are adjacent to the side walls of the impeller chamber (31).
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| CN110905753B (en) * | 2019-12-03 | 2024-06-07 | 浙江海洋大学 | Marine pumping device |
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