CA2950473A1 - Negative-pressure wave generator - Google Patents
Negative-pressure wave generator Download PDFInfo
- Publication number
- CA2950473A1 CA2950473A1 CA2950473A CA2950473A CA2950473A1 CA 2950473 A1 CA2950473 A1 CA 2950473A1 CA 2950473 A CA2950473 A CA 2950473A CA 2950473 A CA2950473 A CA 2950473A CA 2950473 A1 CA2950473 A1 CA 2950473A1
- Authority
- CA
- Canada
- Prior art keywords
- negative
- casing
- power station
- tube
- inner space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- F03B15/00—Controlling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/10—Stators
- F05B2240/13—Stators to collect or cause flow towards or away from turbines
- F05B2240/133—Stators to collect or cause flow towards or away from turbines with a convergent-divergent guiding structure, e.g. a Venturi conduit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/40—Use of a multiplicity of similar components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/10—Purpose of the control system
- F05B2270/18—Purpose of the control system to control buoyancy
-
- 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
Abstract
A negative-pressure wave generator has a flow-driven assembly (1) and a power-generating assembly (2) disposed in the sea. The flow-driven assembly (1) has multiple Venturi tubes (13) connected to a power generating culvert (50) of the power-generating assembly (2). When sea water passes, the Venturi tubes (13) generate negative pressure to make the water flow into the flow-driven assembly (1) from the power generating culvert (50). A large pressure difference is formed between outside sea water and a chamber (511), and the pressure difference drives a turbine (72) to drive a generator assembly (70) of the power generating culvert (50). The transferring efficiency is high and the water in all the flow channels is in low pressure to prevent the water pipes (40) from burst and leakage. The negative-pressure wave generator is simple in structure and solid, lowering the maintenance cost.
Description
2 BACKGROUND OF THE INVENTION
3 1. Field of the Invention
4 The present invention relates to a generator related to wave power, especially to a negative-pressure wave generator.
6 2. Description of the Prior Arts 7 In the field of generators powered by waves, many techniques have 8 been sophisticatedly developed. Those techniques also have been put into 9 commercial application or practically installed in the sea. Said generator techniques include various types, such as hydraulic, Oscillating Water Column 11 (OWC), overtopping, and so on.
12 The hydraulic generator technique adopts a hydraulic system, which 13 transfers the wave energy into rotation mechanism energy, and then the rotation 14 mechanism energy is used for power generation. The transferring efficiency may reach the expectation in the early stage. But the hydraulic system includes 16 dedicated actuating mechanism, such as hydraulic cylinders and pistons.
The 17 continuous and non-stop wave movements may cause wear to the mechanism.
18 In addition, since the hydraulic value in the tube often remains in a 19 high-pressure range, the components also may have leakage problems.
Therefore, after working for a period of time, the transferring efficiency 21 gradually drops, and the cost of maintenance is increased.
22 The Oscillating Water Column generates power by the wave oscillation, 23 which makes the water stream in a tube oscillating and pushing the air flow.
24 Advantages include that this type is simple in structure, rarely has a breakdown, 1 and the main equipments do not directly contact the seawater, thereby 2 facilitating ease in maintenance. However, since the air is lower than the sea 3 water in density, the transferring efficiency is lowered.
4 The overtopping generator generates power by storing the wave that is over a ramp in a tank floating on the sea. The water level of the tank must be 6 higher than the sea level by at least three meters, thereby generating power by 7 the difference in water level. This type of generator rarely breaks down, and is 8 easy in maintenance. However, the overtopping generator needs wave higher 9 than three meters to reach thc transferring efficiency, and there are very few sea areas that can regularly have such high waves.
1 1 In addition, another type of generator generates power by the 12 difference between the peaks and valleys. Water flows from high to low, 13 forming a one-way flow to drive the generator. This type is simple in structure 14 and has lowered maintenance cost. However, power can only bc generated by half of the height of the wave, that is, the transferring efficiency is low.
16 To overcome the shortcomings, the present invention provides a 17 negative-pressure wave generator to mitigate or obviate the aforementioned 18 problems.
One aspect of the present invention is to provide a negative-pressure 21 wave generator that makes the wave generate large negative-pressure and 22 makes the kinetic energy of large quantity of low-pressure water pass through 23 the generator assembly to keep generating power. The present invention is 24 simple in structure and has lowered cost in maintenance. The negative-pressure 1 wave generator has 2 a flow-driven assembly having 3 a negative pressure mechanism having 4 an inlet main tube;
at least one Venturi tube disposed vertically, each one of 6 the at least one Venturi tube being a hollow tube, and having 7 a top opening disposed in a top end of the Venturi 8 tube;
9 a bottom opening disposed in a bottom end of the Venturi tube; and 11 a throat formed between the top opening and the 12 bottom opening, and being smaller than the top opening and the bottom 13 opening in inner diameter; and 14 at least one inlet branch tube connected between and communicating with the inlet main tube and the throat of the at least one 16 Venturi tube;
17 a float having buoyancy and capable of controlling a magnitude 18 of the buoyancy; and 19 a frame connected between the negative pressure mechanism and the float; and 21 a power-generating assembly having 22 at least one water pipe connected to the inlet main tube;
23 a power generating culvert having a casing, and the casing 24 having 1 a chamber formed inside of the casing;
2 at least one through hole formed through a bottom of the 3 casing; an end of the at least one water pipe mounted through the at least one 4 = through hole and disposed in the chamber;
an inlet opening disposed above the casing and 6 communicating with the chamber; and 7 a flow part formed in a middle of the casing, and disposed 8 between the inlet opening and the end of the at least one water pipe;
9 a central power station platform connected to the power generating culvert, and having buoyancy and capable of controlling a 11 magnitude of the buoyancy; and 12 a generator assembly having 13 a generator mounted on the central power station platform;
14 a turbine disposed in the flow part of the power generating culvert; and 16 a driven shaft connected between the generator and the 17 turbine to make the turbine drive the generator.
18 When the flow-driven assembly and the negative pressure mechanism 19 is moved up and down by the wave, the water flows fast when passing through the Venturi tube, thereby generating negative pressure with larger pressure 21 difference in the throat. A water pipe communicates with the negative pressure 22 mechanism and the power generating culvert of the power-generating assembly, 23 such that large amount of the sea water keeps entering the power generating 24 culvert, and keeps driving the generating assembly in the power generating 1 culvert to generate power. Since the generating power is simply processed by 2 sea water driving the turbine, the transferring efficiency is high.
3 In addition, most part of the structure does not rotate, thereby 4 eliminating wear of the mechanism and enhancing the reliability.
Furthermore,
6 2. Description of the Prior Arts 7 In the field of generators powered by waves, many techniques have 8 been sophisticatedly developed. Those techniques also have been put into 9 commercial application or practically installed in the sea. Said generator techniques include various types, such as hydraulic, Oscillating Water Column 11 (OWC), overtopping, and so on.
12 The hydraulic generator technique adopts a hydraulic system, which 13 transfers the wave energy into rotation mechanism energy, and then the rotation 14 mechanism energy is used for power generation. The transferring efficiency may reach the expectation in the early stage. But the hydraulic system includes 16 dedicated actuating mechanism, such as hydraulic cylinders and pistons.
The 17 continuous and non-stop wave movements may cause wear to the mechanism.
18 In addition, since the hydraulic value in the tube often remains in a 19 high-pressure range, the components also may have leakage problems.
Therefore, after working for a period of time, the transferring efficiency 21 gradually drops, and the cost of maintenance is increased.
22 The Oscillating Water Column generates power by the wave oscillation, 23 which makes the water stream in a tube oscillating and pushing the air flow.
24 Advantages include that this type is simple in structure, rarely has a breakdown, 1 and the main equipments do not directly contact the seawater, thereby 2 facilitating ease in maintenance. However, since the air is lower than the sea 3 water in density, the transferring efficiency is lowered.
4 The overtopping generator generates power by storing the wave that is over a ramp in a tank floating on the sea. The water level of the tank must be 6 higher than the sea level by at least three meters, thereby generating power by 7 the difference in water level. This type of generator rarely breaks down, and is 8 easy in maintenance. However, the overtopping generator needs wave higher 9 than three meters to reach thc transferring efficiency, and there are very few sea areas that can regularly have such high waves.
1 1 In addition, another type of generator generates power by the 12 difference between the peaks and valleys. Water flows from high to low, 13 forming a one-way flow to drive the generator. This type is simple in structure 14 and has lowered maintenance cost. However, power can only bc generated by half of the height of the wave, that is, the transferring efficiency is low.
16 To overcome the shortcomings, the present invention provides a 17 negative-pressure wave generator to mitigate or obviate the aforementioned 18 problems.
One aspect of the present invention is to provide a negative-pressure 21 wave generator that makes the wave generate large negative-pressure and 22 makes the kinetic energy of large quantity of low-pressure water pass through 23 the generator assembly to keep generating power. The present invention is 24 simple in structure and has lowered cost in maintenance. The negative-pressure 1 wave generator has 2 a flow-driven assembly having 3 a negative pressure mechanism having 4 an inlet main tube;
at least one Venturi tube disposed vertically, each one of 6 the at least one Venturi tube being a hollow tube, and having 7 a top opening disposed in a top end of the Venturi 8 tube;
9 a bottom opening disposed in a bottom end of the Venturi tube; and 11 a throat formed between the top opening and the 12 bottom opening, and being smaller than the top opening and the bottom 13 opening in inner diameter; and 14 at least one inlet branch tube connected between and communicating with the inlet main tube and the throat of the at least one 16 Venturi tube;
17 a float having buoyancy and capable of controlling a magnitude 18 of the buoyancy; and 19 a frame connected between the negative pressure mechanism and the float; and 21 a power-generating assembly having 22 at least one water pipe connected to the inlet main tube;
23 a power generating culvert having a casing, and the casing 24 having 1 a chamber formed inside of the casing;
2 at least one through hole formed through a bottom of the 3 casing; an end of the at least one water pipe mounted through the at least one 4 = through hole and disposed in the chamber;
an inlet opening disposed above the casing and 6 communicating with the chamber; and 7 a flow part formed in a middle of the casing, and disposed 8 between the inlet opening and the end of the at least one water pipe;
9 a central power station platform connected to the power generating culvert, and having buoyancy and capable of controlling a 11 magnitude of the buoyancy; and 12 a generator assembly having 13 a generator mounted on the central power station platform;
14 a turbine disposed in the flow part of the power generating culvert; and 16 a driven shaft connected between the generator and the 17 turbine to make the turbine drive the generator.
18 When the flow-driven assembly and the negative pressure mechanism 19 is moved up and down by the wave, the water flows fast when passing through the Venturi tube, thereby generating negative pressure with larger pressure 21 difference in the throat. A water pipe communicates with the negative pressure 22 mechanism and the power generating culvert of the power-generating assembly, 23 such that large amount of the sea water keeps entering the power generating 24 culvert, and keeps driving the generating assembly in the power generating 1 culvert to generate power. Since the generating power is simply processed by 2 sea water driving the turbine, the transferring efficiency is high.
3 In addition, most part of the structure does not rotate, thereby 4 eliminating wear of the mechanism and enhancing the reliability.
Furthermore,
5 the present invention is simple in structure and is solid, so the maintenance cost
6 is lowered.
7 . Besides, since the water in all the flow channels are in low pressure,
8 the equipment or the water pipes are not prone to burst, thereby eliminating the
9 leakage.
Other advantages and novel features of the invention will become more 11 apparent from the following detailed description when taken in conjunction 12 with the accompanying drawings.
14 Fig. 1 is a perspective view of a negative-pressure wave generator in accordance with the present invention;
16 Fig. 2 is a front view in partial section of the negative-pressure wave 17 generator in Fig. 1;
18 Fig. 3 is a perspective view of a flow-driven assembly of the 19 negative-pressure wave generator in Fig. 1;
Fig. 4 is an exploded perspective view of the flow-driven assembly of =
21 the negative-pressure wave generator in Fig. 1;
22 Fig. 5 is an operational front view of a negative pressure mechanism of 23 the flow-driven assembly of the negative-pressure wave generator in Fig.
1, 24 showing a water flow when floating upward;
1 Fig. 6 is an operational front view of the negative pressure mechanism 2 of the flow-driven assembly of the negative-pressure wave generator in Fig. 1, 3 showing the water flow when diving downward;
4 Fig. 7 is a side view in partial section of an inlet branch along line 7-of Fig. 5;
6 Fig. 8 is a perspective view in partial section of a power-generating 7 assembly of the negative-pressure wave generator in Fig. 1;
8 Fig. 9 is a perspective view of a power generating culvert of the 9 negative-pressure wave generator in Fig. 1;
Fig. 10 is a perspective view of the negative-pressure wave generator in 11 Fig. 1, showing water flowing into the power generating culvert;
12 Fig. 11 is a perspective view of the negative-pressure wave generator in 13 Fig. 1, showing an ultrasound irradiation area in the power generating culvert;
14 Fig. 12 is a perspective view of a backflow barrier of the negative-pressure wave generator in Fig. 1;
16 Fig. 13 is a front view of the negative-pressure wave generator in Fig.
1, 17 showing water flow between a water pipe and the backflow barrier;
18 Fig. 14 is another front view of the negative-pressure wave generator in 19 Fig. 1, showing water flow between the water pipe and the backflow barrier;
Fig. 15 is a front view of the negative-pressure wave generator in Fig. 1, 21 shown diving in the water; and 22 Fig. 16 is a front view of the negative-pressure wave generator in Fig.
1, 23 shown floating in the water.
2 With reference to Fig. 1, a negative-pressure wave generator in 3 accordance with the present invention comprises at least one flow-driven 4 assembly 1 and a power-generating assembly 2. Each one of the at least one flow-driven assembly 1 is connected to the power-generating assembly 2. In a 6 preferred embodiment as shown in the figures, the negative-pressure wave 7 generator comprises six flow-driven assemblies 1, which are disposed around 8 the power-generating assembly 2.
9 With reference to Figs. 2 to 4, the flow-driven assembly 1 has a negative pressure mechanism 10, a frame 20 and a float 30.
11 = The negative pressure mechanism 10 has an inlet main tube 11, at least 12 one inlet branch tube 12, and at least one Venturi tube 13. One end of the inlet 13 branch tube 12 is connected to one end of the inlet main tube 11. The other end 14 of the inlet branch tube 12 is connected to the corresponding Venturi tube 13.
In a preferred embodiment as shown in the figures, the negative pressure 16 mechanism 10 has multiple inlet branch tubes 12 and multiple Venturi tubes 13.
17 The Venturi tubes 13 are disposed vertically, and are arranged apart from each 18 other.
19 The inlet main tube 11 is a hollow tube for water to pass through, and the inlet main tube 11 has two end openings.
21 The inlet branch tube 12 is a hollow tube for water to pass through, and 22 the inlet branch tube 12 has two end openings. One of the end openings of the 23 inlet branch tube 12 is connected to one of the end openings.of the inlet main 24 tube 11. The inlet branch tube 12 and its two end openings are all oval in cross 1 section as shown in Fig. 7. A longitudinal axis of the inlet branch tube 12 is 2 disposed vertically.
3 With reference to Fig. 5, the Venturi tube 13 is a hollow tube for water, 4 which is moved by the up-and-down movement of the wave, to pass through.
5 The Venturi tube 13 has a throat 131, a top opening 132 and a bottom opening 6 133. The top opening 132 and the bottom opening 133 are respectively in the 7 two ends of the Venturi tube 13. The throat 131 is forrned inside of the Venturi 8 tube 13, and is formed between the top opening 132 and the bottom opening 9 133. The throat 131 is smaller than the top opening 132 in inner diameter, and
Other advantages and novel features of the invention will become more 11 apparent from the following detailed description when taken in conjunction 12 with the accompanying drawings.
14 Fig. 1 is a perspective view of a negative-pressure wave generator in accordance with the present invention;
16 Fig. 2 is a front view in partial section of the negative-pressure wave 17 generator in Fig. 1;
18 Fig. 3 is a perspective view of a flow-driven assembly of the 19 negative-pressure wave generator in Fig. 1;
Fig. 4 is an exploded perspective view of the flow-driven assembly of =
21 the negative-pressure wave generator in Fig. 1;
22 Fig. 5 is an operational front view of a negative pressure mechanism of 23 the flow-driven assembly of the negative-pressure wave generator in Fig.
1, 24 showing a water flow when floating upward;
1 Fig. 6 is an operational front view of the negative pressure mechanism 2 of the flow-driven assembly of the negative-pressure wave generator in Fig. 1, 3 showing the water flow when diving downward;
4 Fig. 7 is a side view in partial section of an inlet branch along line 7-of Fig. 5;
6 Fig. 8 is a perspective view in partial section of a power-generating 7 assembly of the negative-pressure wave generator in Fig. 1;
8 Fig. 9 is a perspective view of a power generating culvert of the 9 negative-pressure wave generator in Fig. 1;
Fig. 10 is a perspective view of the negative-pressure wave generator in 11 Fig. 1, showing water flowing into the power generating culvert;
12 Fig. 11 is a perspective view of the negative-pressure wave generator in 13 Fig. 1, showing an ultrasound irradiation area in the power generating culvert;
14 Fig. 12 is a perspective view of a backflow barrier of the negative-pressure wave generator in Fig. 1;
16 Fig. 13 is a front view of the negative-pressure wave generator in Fig.
1, 17 showing water flow between a water pipe and the backflow barrier;
18 Fig. 14 is another front view of the negative-pressure wave generator in 19 Fig. 1, showing water flow between the water pipe and the backflow barrier;
Fig. 15 is a front view of the negative-pressure wave generator in Fig. 1, 21 shown diving in the water; and 22 Fig. 16 is a front view of the negative-pressure wave generator in Fig.
1, 23 shown floating in the water.
2 With reference to Fig. 1, a negative-pressure wave generator in 3 accordance with the present invention comprises at least one flow-driven 4 assembly 1 and a power-generating assembly 2. Each one of the at least one flow-driven assembly 1 is connected to the power-generating assembly 2. In a 6 preferred embodiment as shown in the figures, the negative-pressure wave 7 generator comprises six flow-driven assemblies 1, which are disposed around 8 the power-generating assembly 2.
9 With reference to Figs. 2 to 4, the flow-driven assembly 1 has a negative pressure mechanism 10, a frame 20 and a float 30.
11 = The negative pressure mechanism 10 has an inlet main tube 11, at least 12 one inlet branch tube 12, and at least one Venturi tube 13. One end of the inlet 13 branch tube 12 is connected to one end of the inlet main tube 11. The other end 14 of the inlet branch tube 12 is connected to the corresponding Venturi tube 13.
In a preferred embodiment as shown in the figures, the negative pressure 16 mechanism 10 has multiple inlet branch tubes 12 and multiple Venturi tubes 13.
17 The Venturi tubes 13 are disposed vertically, and are arranged apart from each 18 other.
19 The inlet main tube 11 is a hollow tube for water to pass through, and the inlet main tube 11 has two end openings.
21 The inlet branch tube 12 is a hollow tube for water to pass through, and 22 the inlet branch tube 12 has two end openings. One of the end openings of the 23 inlet branch tube 12 is connected to one of the end openings.of the inlet main 24 tube 11. The inlet branch tube 12 and its two end openings are all oval in cross 1 section as shown in Fig. 7. A longitudinal axis of the inlet branch tube 12 is 2 disposed vertically.
3 With reference to Fig. 5, the Venturi tube 13 is a hollow tube for water, 4 which is moved by the up-and-down movement of the wave, to pass through.
5 The Venturi tube 13 has a throat 131, a top opening 132 and a bottom opening 6 133. The top opening 132 and the bottom opening 133 are respectively in the 7 two ends of the Venturi tube 13. The throat 131 is forrned inside of the Venturi 8 tube 13, and is formed between the top opening 132 and the bottom opening 9 133. The throat 131 is smaller than the top opening 132 in inner diameter, and
10 is smaller than the bottom opening 133 in inner diameter. The Venturi tube 13
11 has a connecting opening 134 formed through a tube wall of the Venturi tube
12 13, and the connecting opening 134 corresponds to the throat 131 in position.
= 13 The connecting opening 134 communicates with the inside of the Venturi tube 14 13.
15 Inside the Venturi tube 13, since the throat 131 is smaller than the top 16 opening 132 and the bottom opening 133 in inner diameter, there is an inclined 17 angle 0 between an inner wall of the Venturi tube 13 and the central axis of the 18 Venturi tube 13, and the angle 0 is preferably from 5 to 7 degrees.
19 A bottom of the frame 20 is securely connected to the negative pressure 20 mechanism 10.
21 The float 30 is securely connected to a top of the frame 20, such that 22 the flow-driven assembly 1 is capable of floating in the water. The float 30 has 23 buoyancy, and a magnitude of the buoyancy is controllable. In a prefen-ed 24 embodiment, the float 30 has a container 300, which is hollow and disposed 1 vertically. An outer wall of the container 300 is connected to the frame 20.
2 The inlet branch tube 12 is equal to the Venturi tube 13 in number.
3 However, in other preferred embodiments, the inlet branch tube 12 may be 4 different from the Venturi tube 13 in number. For example, two inlet branch 5 tubes 12 are connected to one single Venturi tube 13.
= 6 With reference to Figs. 5 and 6, the up-and-down movement of the 7 wave moves the negative pressure mechanism 10 under the water up and down 8 as well. At this time, the water flow moves fast in the Venturi tubes 13.
9 Regardless that the water flow moves from the top opening 132 to the bottom 10 opening 133, or from the bottom opening 133 to the top opening 132, the water = 11 flow is accelerated due to the variation of the inner diameter when passing 12 through the throat 131. Therefore, a negative press status is formed in the
= 13 The connecting opening 134 communicates with the inside of the Venturi tube 14 13.
15 Inside the Venturi tube 13, since the throat 131 is smaller than the top 16 opening 132 and the bottom opening 133 in inner diameter, there is an inclined 17 angle 0 between an inner wall of the Venturi tube 13 and the central axis of the 18 Venturi tube 13, and the angle 0 is preferably from 5 to 7 degrees.
19 A bottom of the frame 20 is securely connected to the negative pressure 20 mechanism 10.
21 The float 30 is securely connected to a top of the frame 20, such that 22 the flow-driven assembly 1 is capable of floating in the water. The float 30 has 23 buoyancy, and a magnitude of the buoyancy is controllable. In a prefen-ed 24 embodiment, the float 30 has a container 300, which is hollow and disposed 1 vertically. An outer wall of the container 300 is connected to the frame 20.
2 The inlet branch tube 12 is equal to the Venturi tube 13 in number.
3 However, in other preferred embodiments, the inlet branch tube 12 may be 4 different from the Venturi tube 13 in number. For example, two inlet branch 5 tubes 12 are connected to one single Venturi tube 13.
= 6 With reference to Figs. 5 and 6, the up-and-down movement of the 7 wave moves the negative pressure mechanism 10 under the water up and down 8 as well. At this time, the water flow moves fast in the Venturi tubes 13.
9 Regardless that the water flow moves from the top opening 132 to the bottom 10 opening 133, or from the bottom opening 133 to the top opening 132, the water = 11 flow is accelerated due to the variation of the inner diameter when passing 12 through the throat 131. Therefore, a negative press status is formed in the
13 junction between the throat 131 and the end of the inlet branch tube 12, and
14 then a considerable pressure difference between the negative pressure and one
15 atmosphere (1 atm) on the sea is formed. Said pressure difference makes the
16 sea water in the inlet main tube 11 and the inlet branch tubes 12 flow into the
17 Venturi tube 13, and then flow out to the sea from the top opening 132 or the
18 bottom opening 133.
19 The negative pressure mechanism 10 moves equidistantly along the
20 up-and-down movement of the wave, such that the negative pressure
21 mechanism 10 can form negative pressure regardless that the float 30 is moved
22 upward or downward. in addition, the higher up-and-down movement
23 frequency the float 30 has, the more intense the negative pressure status is.
24 With reference to Figs. 1 to 3, the power-generating assembly 2 has at 1 least one water pipe 40, a power generating culvert 50, a central power station 2 platform 60, and a generator assembly 70. In a preferred embodiment as shown 3 in the figures, the power-generating assembly 2 has multiple water pipes 40.
4 The water pipe 40 is an elongated tube, and is preferably a soft tube.
5 One of two ends of the water pipe 40 is connected to the other end of the inlet 6 main tube 11. The other end of the water pipe 40 is connected to the power 7 generating culvert 50. Thus, the flow-driven assemblies 1 are connected to the 8 power-generating assembly 2.
9 With reference to Figs. 8 and 9, the power generating culvert 50 is 10 hollow, and is preferably a cylindrical and hollow post as shown in the figures.
11 The power generating culvert 50 has a casing 51, and the casing 51 has a 12 chamber 511, at least one through hole 512, a flow part 513 arid an inlet 13 opening 514. The chamber 511 is formed inside of the casing 51. Each through 14 hole 512 is formed through a bottom of the casing 51. The water pipes 40 are respectively mounted through the through holes 512 and an end of the water 16 pipe 40 is disposed in the chamber 511. The flow part 513 is formed in a 17 middle of the casing 51. The inlet opening 514 is disposed above the casing 51 18 and communicates with the chamber 511. The flow part 513 is disposed 19 between the inlet opening 514 and the end of the water pipes 40. In a preferred embodiment as shown in the figures, the flow part 513 is formed as a tapered 21 neck in the middle of the casing 51.
27 The central power station platform 60 is hollow, such that the 23 = power-generating assembly 2 is capable of floating in the water. The central 24 power station platfomi 60 has buoyancy, and a magnitude of the buoyancy is =
1 controllable. A bottom of the central power station platform 60 is connected to 2 the power generating culvert 50. The inlet opening 514 of the power generating 3 culvert 50 communicates to the sea, and thus sea water flows into the chamber 4 511 from the inlet opening 514.
With reference to Fig. 2, the generator assembly 70 has a generator 71, 6 a turbine 72, and a driven shaft 73. The driven shaft 73 is connected between 7 the generator 71 and the turbine 72 to make the turbine 72 drive the generator 8 71. An accelerator 75 may be mounted on the driven shaft 73 to accelerate the 9 rotation from the turbine 72 to the generator 71. This part of the generator assembly 70 is a conventional technique, and detail thereof is omitted.
11 The generator 71 of the generator assembly 70 is mounted on the 12 central power station platform 60. A surrounder 700 is mounted in a casing 600 13 of the central power station platform 60, and has an inner space for the 14 generator 71 to be installed. A bearing 74 is mounted on a bottom of the casing 600, and is water-sealed. The driven shaft 73 is mounted through the bearing 74.
16 The turbine 72 is mounted in the flow part 513 of the power generating culvert 17 50. Thus, sea water flows into the chamber 511 from the inlet opening 514 and 18 the flow part 513, and then flows into the water pipes 40. When the sea water 19 passes through the turbine 72 in the flow part 513, the water flow drives and -rotates the turbine 72, thereby making the generator assembly 70 generate 21 power. "
22 When the negative-pressure wave generator as described is in use, the 23 flow-driven assembly 1 is disposed in the sea, and the negative pressure 24 mechanism 10 is moved along with the up-and-down movement of the wave.
1 Therefore, a negative press status is formed in the throat 131 of the Venturi 2 tube 13. At this time, sea water in the water pipes 40, the inlet main tube 11, 3 and the inlet branch tubes 12 flows fast into the Venturi tube 13 unidirectionally, 4 and then flows out to the sea from the top opening 132 or the bottom opening 133. Since the chamber 511 of the power generating culvert 50 is connected to 6 the water pipes 40, the water in the chamber 511 flows into the water pipes 40, 7 and then the sea water flows into the chamber 511 from the inlet opening 514, 8 thereby rotating the turbine 72 to make the generator assembly 70 generate 9 power. As a result, both the upward movement and the downward movement of the wave can fonn negative pressure, and thus the power generation can 11 proceed continuously.
12 The negative pressure mechanism 10 further has multiple connecting 13 rods 14. Two ends of each connecting rod 14 are securely connected between 14 two adjacent Venturi tubes 13 respectively, or two ends of each connecting rod 14 are securely connected between one Venturi tube 13 and the inlet main tube 16 11 respectively. In a preferred embodiment as shown in Figs. 3 and 4, the 17 negative pressure mechanism 10 has six Venturi tubes 13. Each two adjacent 18 Venturi tubes 13 have a respective pair of the connecting rods 14 mounted 19 therebetween. Said pair of the connecting rods 14 are spaced apart from each other. There is one connecting rod 14 mounted between one of the Venturi 21 tubes 13 and the inlet main tube 11. The inlet main tube 11 is disposed in a 22 center between the six Venturi tubes 13, and the six Venturi tubes 13 form a 23 hexagon.
24 The negative pressure mechanism 10 further has a guiding cover 15.
1 The guiding cover 15 is conical, and is mounted above a junction between the 2 inlet main tube 11 and the inlet branch tubes 12.
3 In a preferred embodiment, the frame 20 has multiple stabilizing panels 4 21, multiple main rods 22, and multiple side rods 23. The main rods 22 are disposed vertically, and are connected to the Venturi tubes 13. Each side rod 6 is mounted between two adjacent main rods 22. The stabilizing panels 21 are 7 mounted on outer walls of the main rods 22. In a preferred embodiment as 8 shown in Figs. 3 and 4, between two vertical main rods 22, there are two side 9 rods 23 disposed transversely and spaced vertically apart from each other and another two side rods 23 intersecting each other.
11 With reference to Figs. 2 and 3, the float 30 further has a partition 12 panel 301 mounted inside of thc container 300 and separating an inner space of 13 the container 300 into a first inner space 31 and a second inner space 32. The 14 first inner space 31 maybe disposed above the second inner space 32 as shown in the figures. The float 30 further has an air compressor 33 mounted on the 16 partition panel 301 and the air compressor 33 is capable of functioning as a gas 17 valve. The air compressor 33 is a conventional technique, and detail thereof is 18 omitted. Two openings of the air compressor 33 respectively communicate with 19 the first inner space 31 and the second inner space 32. The air compressor 33 can pressurize and transport the air in the second inner space 32 to the first 21 inner space 31, or can depressurize and transport the air in the first inner space 22 31 to the second inner space 32.
23 The float 30 has at least one pumping drainage machine 34 disposed 24 below the container 300. The pumping drainage machine 34 is capable of 1 functioning as a water valve. The pumping drainage machine 34 is a 2 conventional technique, and detail thereof is omitted. A tube 341 is mounted on 3 one of two end openings of the pumping drainage machine 34, and the other 4 end opening of the pumping drainage machine 34 communicates with the second inner space 32. The pumping drainage machine 34 can transport the sea 6 water into the second inner space 32, or can transport the sea water out of the 7 second inner space 32 to the sea.
8 In a preferred embodiment as shown in Fig. 8, the central power station 9 platform 60 is a circular and hollow plate. The central power station platform 60 has a casing 601 and a partition panel 602. The partition panel 602 is 11 mounted inside of the casing 601 and separating an inner space of the casing 12 601 into a third inner space 61 and a fourth inner space 62. The third inner 13 space 61 may be disposed above the fourth inner space 62 as shown in the 14 figures. The central power station platform 60 has an air compressor 63 mounted on the partition panel 602 and the air compressor 63 is capable of 16 functioning as a gas valve. The air compressor 63 is a conventional technique, 17 and detail thereof is omitted. Two openings of the air compressor 63 18 respectively communicate with the third inner space 61 and the fourth inner 19 space 62. The air compressor 63 can pressurize and transport the air in the fourth inner space 62 to the third inner space 61, or can depressurize and 21 transport the air in the third inner space 61 to the fourth inner space 62.
22 The central power station platform 60 has at least one pumping 23 drainage machine 64 disposed below the casing 600. The pumping drainage 24 machine 64 is capable of functioning as a water valve. The pumping drainage 1 machine 64 is a conventional technique, and detail thereof is omitted.
One of 2 two end openings of the pumping drainage machine 64 communicates with the 3 fourth inner space 62. The pumping drainage machine 64 can transport the sea =
4 water into the fourth irmer space 62, or can transport the sea water out of the 5 fourth inner space 62 to the sea.
6 With reference to Fig. 16, when the negative-pressure wave generator 7 is used in a nonnal weather condition, the float 30 of the flow-driven assembly 8 1 and the central power station platform 60 of the power-generating assembly 2 9 float on the sea, and the negative-pressure wave generator generates power by 10 the wave.
11 With reference to Fig. 15, when the negative-pressure wave generator = 12 is used in a severe weather condition, the air compressor 33 in the float 30 is 13 actuated to store the air of the second inner space 32 in the smaller-volume first 14 inner space 31, and the air compressor 63 in the central power station platform 15 60 is actuated to store the air of the fourth inner space 62 in the smaller-volume 16 third inner space 61. In addition, the pumping drainage machine 34 pumps the 17 sea water into the second inner space 32, and the pumping drainage machine 64 18 pumps the sea water into the fourth inner space 62. The buoyancies generated 19 by the float 30 and the central power station platform 60 are decreased, such 20 that the negative-pressure wave generator dives into the sea for a distance about 21 40 to 60 meters by its weight, thereby preventing the negative-pressure wave 22 generator from damage from the bad weather condition. To be specific, the 23 negative-pressure wave generator can be installed with a gyroscope and sonar 24 detecting system. The computer can calculate the diving distance and the 1 amount of the discharged water to keep the negative-pressure wave generator 2 stay in said diving distance. The aforementioned devices are conventional 3 techniques, and details thereof are omitted.
4 When the weather condition returns to the normal condition, the pumping drainage machine 34 is actuated to discharge the water in the second 6 inner space 32 to the sea, and the air compressor 33 is actuated to transport the 7 air in the first inner space 31 back to the second inner space 32. At this time, 8 the buoyancy generated by the second inner space 32 makes the flow-driven 9 assembly 1 float upward. In addition, the pumping drainage machine 64 is actuated to discharge the water in the fourth inner space 62 to the sea, and the 11 air compressor 63 is actuated to transport the air in the third inner space 61 12 back to the fourth inner space 62. At this time, the buoyancy generated by the =
13 hollow casing 600 of the central power station platform 60 makes the 14 power-generating assembly 2 float upward as shown in Fig. 16.
With reference to Figs. 8 and 9, the power generating culvert 50 further 16 has a fence 52 mounted on and surrounding the inlet opening 514 of the casing 17 51. The fence 52 is mounted between the casing 51 and a bottom of the casing 18 600 of the central power station platform 60, and the fence 52 has multiple 19 flow holes 521, thereby preventing huge objects and marine creatures from entering the inlet opening 514, while the sea water still can enter the inlet 21 opening 514 from the flow holes 521. Since the negative-pressure wave 22 generator is moved up and down as the wave, the negative-pressure wave 23 generator does not affect the marine creatures.
24 With reference to Figs. 10 and 11, the power generating culvert 50 1 further has multiple guiding plates 53 mounted on the inlet opening 514 of the 2 casing 51. The guiding plates 53 are arranged apart from each other, and are 3 disposed at an inner side of the fence 52. The power generating culvert 4 further has multiple ultrasound assemblies 54. Each two adjacent guiding plates 53 have a respective one of the ultrasound assemblies 54 mounted 6 therebetween, thereby forming an ultrasound in=adiation area 530 between said 7 two adjacent guiding plates 53. Marine creatures and spores, which flow 8 through the flow holes 521 and pass through the ultrasound irradiation area 530, 9 are affected physiologically by the ultrasound shock wave. Therefore, the marine creatures and the spores cannot attach to an inner wall of the flow 1 I channels and flow out along with the water flow. The ultrasound assembly 54 is 12 a conventional technique, and detail thereof is omitted.
13 With reference to Fig. 8, the power generating culvert 50 further has 14 multiple branch rods 55 connected between the casing 51 of the power generating culvert 50 and the bottom of the casing 600 of the central power 16 station platform 60. The branch rods 55 can strengthen the structure of the 17 power-generating assembly 2.
18 With reference to Figs. 12 and 13, the negative-pressure wave 19 generator further has multiple backflow barriers 41 respectively mounted on the ends of the water pipes 40. The backflow barrier 41 is disposed in the 21 chamber 511 of the power generating culvert 50. In one of the preferred 22 embodiments, the backflow barrier 41 has a main body 411. The main body 23 411 is hollow and has an inner space and multiple side walls. Some of the side 24 walls have multiple meshes 412 formed therethrough, and each one of said side 1 walls has a backflow barrier plate 413. One side of the backflow barrier plate 2 413 is connected to the inner wall of the main body 411, and the backflow 3 barrier plate 413 is capable of being attached to and sealing the meshes 412.
4 When the sea water in the chamber 511 flows into the main body 411 from the meshes 412, the water flow can push away the backflow barrier plate 413.
6 When the water in the main body 411 flows into the chamber 511, the water is 7 blocked by the backflow barrier plate 413 as shown in Fig. 14, thereby keeping 8 the water flowing unidirectionally. Furthermore, the backflow barrier 41 has 9 the function of a valve, such that the backflow barrier 41 can automatically seal the water pipe 40 by the pressure variation in the flow channels when any water 11 pipe 40 or the negative pressure mechanism 10 has leakage. Therefore, the 12 backflow barrier 41 can keep the negative-pressure wave generator working 13 normally.
14 With reference to Figs. 2 and 8, the float 30 has a global positioning system (GPS) 302 mounted on a top of the container 300. The central power 16 station platform 60 has a global positioning system 602 and an antenna 17 assembly 603 both mounted on the casing 600. The two global positioning 18 systems 302, 602 and the antenna assembly 603 are conventional techniques, 19 and details thereof are omitted. The two global positioning systems 302, and the antenna assembly 603 enable the user to control and observe the 21 position of the negative-pressure wave generator remotely.
22 With reference to Fig. 15, the antenna assembly 603 has a cable and a 23 float unit. One end of the cable is connected to the float unit, and the float unit 24 has an antenna receiving end. The other end of the cable is connected to a 1 winch. Theses parts of the structure are conventional techniques, and details 2 thereof are omitted. When the power generating assembly 2 and the central 3 power station platform 60 dive into the sea, the winch releases the cable and 4 the float unit moves the antenna receiving end upward to the water surface.
When the power-generating assembly 2 and the central power station platform 6 60 float upward, the winch recoils the cable. At this time, the antenna receiving 7 end of the antenna assembly is disposed on the casing 600 of the central power 8 =station platform 60. Therefore, the negative-pressure wave generator can keep 9 in connection with the remote signal, and thus can be remotely controlled.
The float 30 further has a propeller 35 mounted on the tube 341. The 11 propeller 35 is connected to the central power station platform 60 via a cable.
12 The propeller 35 is controlled by a control mechanism, such that the propeller 13 35 is rotatable relative to the tube 341 of the float 30 to adjust and control the 14 propelling direction of the propeller 35. The aforementioned control mechanism can be wirelessly controlled remotely. The propeller 35 is a 16 conventional technique, and detail thereof is omitted. When the global 17 positioning system 302 of the flow-driven assembly 1 detects that its position is 18 away from a predetermined position, the propeller 35 can be actuated by 19 remote control to move the flow-driven assembly 1 to the predetermined position. In addition, the distance between the flow-driven assemblies 1 or the 21 distance between flow-driven assembly 1 and the power-generating assembly 2 22 also can be controlled by the global positioning system 302 and the propeller 23 35 to prevent the flow-driven assembly 1 and the power-generating assembly 2 24 from disturbing each other.
1 All the control devices and equipments can be powered by the 2 generator 71. In addition, the power transmission to the float 30 of the 3 flow-driven assembly 1 and the signal transmission to the central power station 4 platform 60 can be achieved via cables.
5 The amount of the negative pressure mechanism 10 of the flow-driven 6 assembly 1 can be increased depending on demand and is not limited. When 7 the flow-driven assembly 1 has more negative pressure mechanisms 10, the 8 more unidirectional water flow passes through the power generating culvert 50.
9 At this time, the pulsation is less and the water flow is more stable.
Besides, the 10 unidirectional water flow passing through the power generating culvert 50 is 11 pushed by the pressure difference between the negative pressure generated in 12 the negative pressure mechanism 10 and one atmosphere (1 atm) on the sea.
13 Thus, the middle-level wave, which has short period, high frequency, and wave 14 height in two to three meters, is suitable for the present invention to generate 15 power. As a result, the present invention is applicable in many sea areas.
16 Even though numerous characteristics and advantages of the present = 17 invention have been set forth in the foregoing description, together with details 18 of the structure and features of the invention, the disclosure is illustrative only.
19 Changes may be made in the details, especially in matters of shape, size, and 20 arrangement of parts within the principles of the invention to the full extent 21 indicated by the broad general meaning of the terms in which the appended 22 claims are expressed.
4 The water pipe 40 is an elongated tube, and is preferably a soft tube.
5 One of two ends of the water pipe 40 is connected to the other end of the inlet 6 main tube 11. The other end of the water pipe 40 is connected to the power 7 generating culvert 50. Thus, the flow-driven assemblies 1 are connected to the 8 power-generating assembly 2.
9 With reference to Figs. 8 and 9, the power generating culvert 50 is 10 hollow, and is preferably a cylindrical and hollow post as shown in the figures.
11 The power generating culvert 50 has a casing 51, and the casing 51 has a 12 chamber 511, at least one through hole 512, a flow part 513 arid an inlet 13 opening 514. The chamber 511 is formed inside of the casing 51. Each through 14 hole 512 is formed through a bottom of the casing 51. The water pipes 40 are respectively mounted through the through holes 512 and an end of the water 16 pipe 40 is disposed in the chamber 511. The flow part 513 is formed in a 17 middle of the casing 51. The inlet opening 514 is disposed above the casing 51 18 and communicates with the chamber 511. The flow part 513 is disposed 19 between the inlet opening 514 and the end of the water pipes 40. In a preferred embodiment as shown in the figures, the flow part 513 is formed as a tapered 21 neck in the middle of the casing 51.
27 The central power station platform 60 is hollow, such that the 23 = power-generating assembly 2 is capable of floating in the water. The central 24 power station platfomi 60 has buoyancy, and a magnitude of the buoyancy is =
1 controllable. A bottom of the central power station platform 60 is connected to 2 the power generating culvert 50. The inlet opening 514 of the power generating 3 culvert 50 communicates to the sea, and thus sea water flows into the chamber 4 511 from the inlet opening 514.
With reference to Fig. 2, the generator assembly 70 has a generator 71, 6 a turbine 72, and a driven shaft 73. The driven shaft 73 is connected between 7 the generator 71 and the turbine 72 to make the turbine 72 drive the generator 8 71. An accelerator 75 may be mounted on the driven shaft 73 to accelerate the 9 rotation from the turbine 72 to the generator 71. This part of the generator assembly 70 is a conventional technique, and detail thereof is omitted.
11 The generator 71 of the generator assembly 70 is mounted on the 12 central power station platform 60. A surrounder 700 is mounted in a casing 600 13 of the central power station platform 60, and has an inner space for the 14 generator 71 to be installed. A bearing 74 is mounted on a bottom of the casing 600, and is water-sealed. The driven shaft 73 is mounted through the bearing 74.
16 The turbine 72 is mounted in the flow part 513 of the power generating culvert 17 50. Thus, sea water flows into the chamber 511 from the inlet opening 514 and 18 the flow part 513, and then flows into the water pipes 40. When the sea water 19 passes through the turbine 72 in the flow part 513, the water flow drives and -rotates the turbine 72, thereby making the generator assembly 70 generate 21 power. "
22 When the negative-pressure wave generator as described is in use, the 23 flow-driven assembly 1 is disposed in the sea, and the negative pressure 24 mechanism 10 is moved along with the up-and-down movement of the wave.
1 Therefore, a negative press status is formed in the throat 131 of the Venturi 2 tube 13. At this time, sea water in the water pipes 40, the inlet main tube 11, 3 and the inlet branch tubes 12 flows fast into the Venturi tube 13 unidirectionally, 4 and then flows out to the sea from the top opening 132 or the bottom opening 133. Since the chamber 511 of the power generating culvert 50 is connected to 6 the water pipes 40, the water in the chamber 511 flows into the water pipes 40, 7 and then the sea water flows into the chamber 511 from the inlet opening 514, 8 thereby rotating the turbine 72 to make the generator assembly 70 generate 9 power. As a result, both the upward movement and the downward movement of the wave can fonn negative pressure, and thus the power generation can 11 proceed continuously.
12 The negative pressure mechanism 10 further has multiple connecting 13 rods 14. Two ends of each connecting rod 14 are securely connected between 14 two adjacent Venturi tubes 13 respectively, or two ends of each connecting rod 14 are securely connected between one Venturi tube 13 and the inlet main tube 16 11 respectively. In a preferred embodiment as shown in Figs. 3 and 4, the 17 negative pressure mechanism 10 has six Venturi tubes 13. Each two adjacent 18 Venturi tubes 13 have a respective pair of the connecting rods 14 mounted 19 therebetween. Said pair of the connecting rods 14 are spaced apart from each other. There is one connecting rod 14 mounted between one of the Venturi 21 tubes 13 and the inlet main tube 11. The inlet main tube 11 is disposed in a 22 center between the six Venturi tubes 13, and the six Venturi tubes 13 form a 23 hexagon.
24 The negative pressure mechanism 10 further has a guiding cover 15.
1 The guiding cover 15 is conical, and is mounted above a junction between the 2 inlet main tube 11 and the inlet branch tubes 12.
3 In a preferred embodiment, the frame 20 has multiple stabilizing panels 4 21, multiple main rods 22, and multiple side rods 23. The main rods 22 are disposed vertically, and are connected to the Venturi tubes 13. Each side rod 6 is mounted between two adjacent main rods 22. The stabilizing panels 21 are 7 mounted on outer walls of the main rods 22. In a preferred embodiment as 8 shown in Figs. 3 and 4, between two vertical main rods 22, there are two side 9 rods 23 disposed transversely and spaced vertically apart from each other and another two side rods 23 intersecting each other.
11 With reference to Figs. 2 and 3, the float 30 further has a partition 12 panel 301 mounted inside of thc container 300 and separating an inner space of 13 the container 300 into a first inner space 31 and a second inner space 32. The 14 first inner space 31 maybe disposed above the second inner space 32 as shown in the figures. The float 30 further has an air compressor 33 mounted on the 16 partition panel 301 and the air compressor 33 is capable of functioning as a gas 17 valve. The air compressor 33 is a conventional technique, and detail thereof is 18 omitted. Two openings of the air compressor 33 respectively communicate with 19 the first inner space 31 and the second inner space 32. The air compressor 33 can pressurize and transport the air in the second inner space 32 to the first 21 inner space 31, or can depressurize and transport the air in the first inner space 22 31 to the second inner space 32.
23 The float 30 has at least one pumping drainage machine 34 disposed 24 below the container 300. The pumping drainage machine 34 is capable of 1 functioning as a water valve. The pumping drainage machine 34 is a 2 conventional technique, and detail thereof is omitted. A tube 341 is mounted on 3 one of two end openings of the pumping drainage machine 34, and the other 4 end opening of the pumping drainage machine 34 communicates with the second inner space 32. The pumping drainage machine 34 can transport the sea 6 water into the second inner space 32, or can transport the sea water out of the 7 second inner space 32 to the sea.
8 In a preferred embodiment as shown in Fig. 8, the central power station 9 platform 60 is a circular and hollow plate. The central power station platform 60 has a casing 601 and a partition panel 602. The partition panel 602 is 11 mounted inside of the casing 601 and separating an inner space of the casing 12 601 into a third inner space 61 and a fourth inner space 62. The third inner 13 space 61 may be disposed above the fourth inner space 62 as shown in the 14 figures. The central power station platform 60 has an air compressor 63 mounted on the partition panel 602 and the air compressor 63 is capable of 16 functioning as a gas valve. The air compressor 63 is a conventional technique, 17 and detail thereof is omitted. Two openings of the air compressor 63 18 respectively communicate with the third inner space 61 and the fourth inner 19 space 62. The air compressor 63 can pressurize and transport the air in the fourth inner space 62 to the third inner space 61, or can depressurize and 21 transport the air in the third inner space 61 to the fourth inner space 62.
22 The central power station platform 60 has at least one pumping 23 drainage machine 64 disposed below the casing 600. The pumping drainage 24 machine 64 is capable of functioning as a water valve. The pumping drainage 1 machine 64 is a conventional technique, and detail thereof is omitted.
One of 2 two end openings of the pumping drainage machine 64 communicates with the 3 fourth inner space 62. The pumping drainage machine 64 can transport the sea =
4 water into the fourth irmer space 62, or can transport the sea water out of the 5 fourth inner space 62 to the sea.
6 With reference to Fig. 16, when the negative-pressure wave generator 7 is used in a nonnal weather condition, the float 30 of the flow-driven assembly 8 1 and the central power station platform 60 of the power-generating assembly 2 9 float on the sea, and the negative-pressure wave generator generates power by 10 the wave.
11 With reference to Fig. 15, when the negative-pressure wave generator = 12 is used in a severe weather condition, the air compressor 33 in the float 30 is 13 actuated to store the air of the second inner space 32 in the smaller-volume first 14 inner space 31, and the air compressor 63 in the central power station platform 15 60 is actuated to store the air of the fourth inner space 62 in the smaller-volume 16 third inner space 61. In addition, the pumping drainage machine 34 pumps the 17 sea water into the second inner space 32, and the pumping drainage machine 64 18 pumps the sea water into the fourth inner space 62. The buoyancies generated 19 by the float 30 and the central power station platform 60 are decreased, such 20 that the negative-pressure wave generator dives into the sea for a distance about 21 40 to 60 meters by its weight, thereby preventing the negative-pressure wave 22 generator from damage from the bad weather condition. To be specific, the 23 negative-pressure wave generator can be installed with a gyroscope and sonar 24 detecting system. The computer can calculate the diving distance and the 1 amount of the discharged water to keep the negative-pressure wave generator 2 stay in said diving distance. The aforementioned devices are conventional 3 techniques, and details thereof are omitted.
4 When the weather condition returns to the normal condition, the pumping drainage machine 34 is actuated to discharge the water in the second 6 inner space 32 to the sea, and the air compressor 33 is actuated to transport the 7 air in the first inner space 31 back to the second inner space 32. At this time, 8 the buoyancy generated by the second inner space 32 makes the flow-driven 9 assembly 1 float upward. In addition, the pumping drainage machine 64 is actuated to discharge the water in the fourth inner space 62 to the sea, and the 11 air compressor 63 is actuated to transport the air in the third inner space 61 12 back to the fourth inner space 62. At this time, the buoyancy generated by the =
13 hollow casing 600 of the central power station platform 60 makes the 14 power-generating assembly 2 float upward as shown in Fig. 16.
With reference to Figs. 8 and 9, the power generating culvert 50 further 16 has a fence 52 mounted on and surrounding the inlet opening 514 of the casing 17 51. The fence 52 is mounted between the casing 51 and a bottom of the casing 18 600 of the central power station platform 60, and the fence 52 has multiple 19 flow holes 521, thereby preventing huge objects and marine creatures from entering the inlet opening 514, while the sea water still can enter the inlet 21 opening 514 from the flow holes 521. Since the negative-pressure wave 22 generator is moved up and down as the wave, the negative-pressure wave 23 generator does not affect the marine creatures.
24 With reference to Figs. 10 and 11, the power generating culvert 50 1 further has multiple guiding plates 53 mounted on the inlet opening 514 of the 2 casing 51. The guiding plates 53 are arranged apart from each other, and are 3 disposed at an inner side of the fence 52. The power generating culvert 4 further has multiple ultrasound assemblies 54. Each two adjacent guiding plates 53 have a respective one of the ultrasound assemblies 54 mounted 6 therebetween, thereby forming an ultrasound in=adiation area 530 between said 7 two adjacent guiding plates 53. Marine creatures and spores, which flow 8 through the flow holes 521 and pass through the ultrasound irradiation area 530, 9 are affected physiologically by the ultrasound shock wave. Therefore, the marine creatures and the spores cannot attach to an inner wall of the flow 1 I channels and flow out along with the water flow. The ultrasound assembly 54 is 12 a conventional technique, and detail thereof is omitted.
13 With reference to Fig. 8, the power generating culvert 50 further has 14 multiple branch rods 55 connected between the casing 51 of the power generating culvert 50 and the bottom of the casing 600 of the central power 16 station platform 60. The branch rods 55 can strengthen the structure of the 17 power-generating assembly 2.
18 With reference to Figs. 12 and 13, the negative-pressure wave 19 generator further has multiple backflow barriers 41 respectively mounted on the ends of the water pipes 40. The backflow barrier 41 is disposed in the 21 chamber 511 of the power generating culvert 50. In one of the preferred 22 embodiments, the backflow barrier 41 has a main body 411. The main body 23 411 is hollow and has an inner space and multiple side walls. Some of the side 24 walls have multiple meshes 412 formed therethrough, and each one of said side 1 walls has a backflow barrier plate 413. One side of the backflow barrier plate 2 413 is connected to the inner wall of the main body 411, and the backflow 3 barrier plate 413 is capable of being attached to and sealing the meshes 412.
4 When the sea water in the chamber 511 flows into the main body 411 from the meshes 412, the water flow can push away the backflow barrier plate 413.
6 When the water in the main body 411 flows into the chamber 511, the water is 7 blocked by the backflow barrier plate 413 as shown in Fig. 14, thereby keeping 8 the water flowing unidirectionally. Furthermore, the backflow barrier 41 has 9 the function of a valve, such that the backflow barrier 41 can automatically seal the water pipe 40 by the pressure variation in the flow channels when any water 11 pipe 40 or the negative pressure mechanism 10 has leakage. Therefore, the 12 backflow barrier 41 can keep the negative-pressure wave generator working 13 normally.
14 With reference to Figs. 2 and 8, the float 30 has a global positioning system (GPS) 302 mounted on a top of the container 300. The central power 16 station platform 60 has a global positioning system 602 and an antenna 17 assembly 603 both mounted on the casing 600. The two global positioning 18 systems 302, 602 and the antenna assembly 603 are conventional techniques, 19 and details thereof are omitted. The two global positioning systems 302, and the antenna assembly 603 enable the user to control and observe the 21 position of the negative-pressure wave generator remotely.
22 With reference to Fig. 15, the antenna assembly 603 has a cable and a 23 float unit. One end of the cable is connected to the float unit, and the float unit 24 has an antenna receiving end. The other end of the cable is connected to a 1 winch. Theses parts of the structure are conventional techniques, and details 2 thereof are omitted. When the power generating assembly 2 and the central 3 power station platform 60 dive into the sea, the winch releases the cable and 4 the float unit moves the antenna receiving end upward to the water surface.
When the power-generating assembly 2 and the central power station platform 6 60 float upward, the winch recoils the cable. At this time, the antenna receiving 7 end of the antenna assembly is disposed on the casing 600 of the central power 8 =station platform 60. Therefore, the negative-pressure wave generator can keep 9 in connection with the remote signal, and thus can be remotely controlled.
The float 30 further has a propeller 35 mounted on the tube 341. The 11 propeller 35 is connected to the central power station platform 60 via a cable.
12 The propeller 35 is controlled by a control mechanism, such that the propeller 13 35 is rotatable relative to the tube 341 of the float 30 to adjust and control the 14 propelling direction of the propeller 35. The aforementioned control mechanism can be wirelessly controlled remotely. The propeller 35 is a 16 conventional technique, and detail thereof is omitted. When the global 17 positioning system 302 of the flow-driven assembly 1 detects that its position is 18 away from a predetermined position, the propeller 35 can be actuated by 19 remote control to move the flow-driven assembly 1 to the predetermined position. In addition, the distance between the flow-driven assemblies 1 or the 21 distance between flow-driven assembly 1 and the power-generating assembly 2 22 also can be controlled by the global positioning system 302 and the propeller 23 35 to prevent the flow-driven assembly 1 and the power-generating assembly 2 24 from disturbing each other.
1 All the control devices and equipments can be powered by the 2 generator 71. In addition, the power transmission to the float 30 of the 3 flow-driven assembly 1 and the signal transmission to the central power station 4 platform 60 can be achieved via cables.
5 The amount of the negative pressure mechanism 10 of the flow-driven 6 assembly 1 can be increased depending on demand and is not limited. When 7 the flow-driven assembly 1 has more negative pressure mechanisms 10, the 8 more unidirectional water flow passes through the power generating culvert 50.
9 At this time, the pulsation is less and the water flow is more stable.
Besides, the 10 unidirectional water flow passing through the power generating culvert 50 is 11 pushed by the pressure difference between the negative pressure generated in 12 the negative pressure mechanism 10 and one atmosphere (1 atm) on the sea.
13 Thus, the middle-level wave, which has short period, high frequency, and wave 14 height in two to three meters, is suitable for the present invention to generate 15 power. As a result, the present invention is applicable in many sea areas.
16 Even though numerous characteristics and advantages of the present = 17 invention have been set forth in the foregoing description, together with details 18 of the structure and features of the invention, the disclosure is illustrative only.
19 Changes may be made in the details, especially in matters of shape, size, and 20 arrangement of parts within the principles of the invention to the full extent 21 indicated by the broad general meaning of the terms in which the appended 22 claims are expressed.
Claims (18)
1. A negative-pressure wave generator comprising:
a flow-driven assembly having a negative pressure mechanism having an inlet main tube;
at least one Venturi tube disposed vertically, each one of the at least one Venturi tube being a hollow tube, and having a top opening disposed in a top end of the Venturi tube;
a bottom opening disposed in a bottom end of the Venturi tube; and a throat formed between the top opening and the bottom opening, and bcing smaller than the top opening and the bottom opening in inner diameter; and at least one inlet branch tube connected between and communicating with the inlet main tube and the throat of the at least one Venturi tube;
a float having buoyancy and capable of controlling a magnitude of the buoyancy; and a frame connected between the negative pressure mechanism and the float; and a power-generating assembly having at least one water pipe connected to the inlet rnain tube;
a power generating culvert having a casing, and the casing having a charnber formed inside of the casing;
at least one through hole formed through a bottorn of the casing; an end of the at least one water pipe rnounted through the at least one through hole and disposed in the chamber;
an inlet opening disposed above the casing and communicating with the chamber; and a flow part formed in a middle of the casing, and disposed between the inlet opening and the end of the at least one water pipe;
a central power station platform connected to the power generating culvert, and having buoyancy and capable of controlling a magnitude of the buoyancy; and a generator assernbly having a generator mounted on the central power station platform;
a turbine disposed in the flow part of the power generating culvert; and a driven shaft connected between the generator and the turbine to rnake the turbine drive the generator.
a flow-driven assembly having a negative pressure mechanism having an inlet main tube;
at least one Venturi tube disposed vertically, each one of the at least one Venturi tube being a hollow tube, and having a top opening disposed in a top end of the Venturi tube;
a bottom opening disposed in a bottom end of the Venturi tube; and a throat formed between the top opening and the bottom opening, and bcing smaller than the top opening and the bottom opening in inner diameter; and at least one inlet branch tube connected between and communicating with the inlet main tube and the throat of the at least one Venturi tube;
a float having buoyancy and capable of controlling a magnitude of the buoyancy; and a frame connected between the negative pressure mechanism and the float; and a power-generating assembly having at least one water pipe connected to the inlet rnain tube;
a power generating culvert having a casing, and the casing having a charnber formed inside of the casing;
at least one through hole formed through a bottorn of the casing; an end of the at least one water pipe rnounted through the at least one through hole and disposed in the chamber;
an inlet opening disposed above the casing and communicating with the chamber; and a flow part formed in a middle of the casing, and disposed between the inlet opening and the end of the at least one water pipe;
a central power station platform connected to the power generating culvert, and having buoyancy and capable of controlling a magnitude of the buoyancy; and a generator assernbly having a generator mounted on the central power station platform;
a turbine disposed in the flow part of the power generating culvert; and a driven shaft connected between the generator and the turbine to rnake the turbine drive the generator.
2. The negative-pressure wave generator as clairned in claim 1 further comprising at least one backflow barrier mounted on the end of the at least one water pipe, selectively closing an opening of the end, disposed in the chamber, and each one of the at least one backflow barrier having a main body having an inner space;
a side wall; and multiple meshes forrned on the side wall; and a backflow barrier plate selectively attached to and sealing the meshes.
a side wall; and multiple meshes forrned on the side wall; and a backflow barrier plate selectively attached to and sealing the meshes.
3. The negative-pressure wave generator as claimed in claim 1, wherein the power generating culvert has a fence mounted between the inlet opening of the casing of the power generating culvert and a bottom of the central power station platform, and having multiple flow holes;
multiple guiding plates mounted between the inlet opening of the casing of the power generating culvert and the bottom of the central power station platforrn, arranged apart from each other, and disposed at an inner side of the fence;
multiple ultrasound assemblies, and each two adjacent guiding plates having a respective one of the ultrasound assemblies mounted therebetween;
and multiple ultrasound irradiation areas, and each two adjacent guiding plates having a respective one of the ultrasound irradiation areas formed therebetween.
multiple guiding plates mounted between the inlet opening of the casing of the power generating culvert and the bottom of the central power station platforrn, arranged apart from each other, and disposed at an inner side of the fence;
multiple ultrasound assemblies, and each two adjacent guiding plates having a respective one of the ultrasound assemblies mounted therebetween;
and multiple ultrasound irradiation areas, and each two adjacent guiding plates having a respective one of the ultrasound irradiation areas formed therebetween.
4. The negative-pressure wave generator as claimed in clairn 2, wherein the power generating culvert has a fence rnounted between the inlet opening of the casing of the power generating culvert and a bottom of the central power station platform, and having rnultiple flow holes;
rnultiple guiding plates mounted between the inlet opening of the casing of the power generating culvert and the bottom of the central power station platforrn, arranged apart from each other, and disposed at an inner side of the fence;
multiple ultrasound assemblies, and each two adjacent guiding plates having a respective one of the ultrasound assernblies mounted therebetween;
and multiple ultrasound irradiation areas, and each two adjacent guiding plates having a respective one of the ultrasound irradiation areas formed therebetween.
rnultiple guiding plates mounted between the inlet opening of the casing of the power generating culvert and the bottom of the central power station platforrn, arranged apart from each other, and disposed at an inner side of the fence;
multiple ultrasound assemblies, and each two adjacent guiding plates having a respective one of the ultrasound assernblies mounted therebetween;
and multiple ultrasound irradiation areas, and each two adjacent guiding plates having a respective one of the ultrasound irradiation areas formed therebetween.
5. The negative-pressure wave generator as claimed in clairn 1, wherein the float has a container connected to the frame;
a partition panel rnounted inside of the container and dividing an inner space of the container into a first inner space and a second inner space;
an air compressor mounted on the partition panel and capable of functioning as a gas valve;
at least one purnping drainage rnachine disposed below the container, and capable of functioning as a water valve; one of two end openings of the at least one purnping drainage machine communicating with the second inner space; and a tube mounted on the other end opening of the pumping drainage machine; and thc central power station platform has a casing;
a partition panel mounted inside of the casing of the central power station platform and dividing an inner space of the casing of the central power station platform into a third inner space and a fourth inner space;
an air compressor mounted on the partition panel and capable of functioning as a gas valve; and at least one pumping drainage rnachine disposed below the casing of the central power station platform, and capable of fimetioning as a water valve; one of two end openings of the at least one pumping drainage machine of the central power station platform communicating with the fourth inner space.
a partition panel rnounted inside of the container and dividing an inner space of the container into a first inner space and a second inner space;
an air compressor mounted on the partition panel and capable of functioning as a gas valve;
at least one purnping drainage rnachine disposed below the container, and capable of functioning as a water valve; one of two end openings of the at least one purnping drainage machine communicating with the second inner space; and a tube mounted on the other end opening of the pumping drainage machine; and thc central power station platform has a casing;
a partition panel mounted inside of the casing of the central power station platform and dividing an inner space of the casing of the central power station platform into a third inner space and a fourth inner space;
an air compressor mounted on the partition panel and capable of functioning as a gas valve; and at least one pumping drainage rnachine disposed below the casing of the central power station platform, and capable of fimetioning as a water valve; one of two end openings of the at least one pumping drainage machine of the central power station platform communicating with the fourth inner space.
6. The negative-pressure wave generator as claimed in claim 4, wherein the float has a container connected to the frame;
a partition panel mounted inside of the container and dividing an inner space of the container into a first inner space and a second inner space;
an air compressor mounted on the partition panel and capable of functioning as a gas valve;
at least one pumping drainage machine disposed below the container, and capable of functioning as a water valve; one of two end openings of the at least onc pumping drainage machine communicating with the second inner space; and a tube mounted on the other end opening of the pumping drainage machine; and the central power station platform has a casing;
a partition panel rnounted inside of the casing of the central power station platforrn and separating an inner space of the casing of the central power station platform into a third inner space and a fourth inner space;
an air cornpressor mounted on the partition panel and capable of functioning as a gas valve; and at least one pumping drainage machine disposed below the casing of the central power station platform, and capable of functioning as a water valve; one of two end openings of the at least one pumping drainage machine of the central power station platform communicating with the fourth inner space.
a partition panel mounted inside of the container and dividing an inner space of the container into a first inner space and a second inner space;
an air compressor mounted on the partition panel and capable of functioning as a gas valve;
at least one pumping drainage machine disposed below the container, and capable of functioning as a water valve; one of two end openings of the at least onc pumping drainage machine communicating with the second inner space; and a tube mounted on the other end opening of the pumping drainage machine; and the central power station platform has a casing;
a partition panel rnounted inside of the casing of the central power station platforrn and separating an inner space of the casing of the central power station platform into a third inner space and a fourth inner space;
an air cornpressor mounted on the partition panel and capable of functioning as a gas valve; and at least one pumping drainage machine disposed below the casing of the central power station platform, and capable of functioning as a water valve; one of two end openings of the at least one pumping drainage machine of the central power station platform communicating with the fourth inner space.
7. The negative-pressure wave generator as claimed in claim 5, wherein the float has a propeller mounted on the tube of the float, connected to the central power station platform via a cable, and being rotatable relative to the tube of the float to adjust and control the propelling direction of the propeller.
8. The negative-pressure wave generator as claimed in claim 6, wherein the float has a propeller mounted on the tube of the float, connected to the central power station platform via a cable, and being rotatable relative to the tube of the float to adjust and control the propelling direction of the propeller.
9. The negative-pressure wave generator as claimed in clairn 7, wherein in the float, the propeller is controlled and driven by wireless rernote control.
10. The negative-pressure wave generator as claimed in claim 8, wherein in the float, the propeller is controlled and driven by wireless remote control.
11. The negative-pressure wave generator as claimed in clairn 7, wherein the float has a global positioning system mounted on a top of the container;
and the central power station platform has a global positioning system mounted on the casing of the central power station platform; and an antenna assembly mounted on the casing of the central power station platform, and having a float unit having an antenna receiving end;
a winch; and a cable connected between the float unit and the winch.
and the central power station platform has a global positioning system mounted on the casing of the central power station platform; and an antenna assembly mounted on the casing of the central power station platform, and having a float unit having an antenna receiving end;
a winch; and a cable connected between the float unit and the winch.
12. The negative-pressure wave generator as claimed in claim 10, wherein the float has a global positioning system mounted on a top of the container;
and the central power station platform has a global positioning system mounted on the casing of the central power station platform; and an antenna assembly mounted on the casing of the central power station platforrn, and having a float unit having an antenna receiving end;
a winch; and a cable connected between the float unit and the winch.
and the central power station platform has a global positioning system mounted on the casing of the central power station platform; and an antenna assembly mounted on the casing of the central power station platforrn, and having a float unit having an antenna receiving end;
a winch; and a cable connected between the float unit and the winch.
13. The negative-pressure wave generator as claimed in clairn 1, wherein the at least one Venturi tube is multiple Venturi tubes, and the rnultiple Venturi tubes are connected to the frame; and the negative pressure mechanism has multiple connecting rods, each one of the connecting rods connected between two adjacent ones of the multiple Venturi tubes.
14. The negative-pressure wave generator as claimed in claim 12, wherein at least one Venturi tube is multiple Venturi tubes, and the multiple Venturi tubes are connected to the frame; and the negative pressure mechanism has multiple connecting rods, each one of the connecting rods connected between two adjacent ones of the multiple Venturi tubes.
15. The negative-pressure wave generator as claimed in claim 13, wherein the frame has multiple main rods disposed vertically and connected to the Venturi tubes;
multiple side rods rnounted between two adjacent ones of the multiple main rods; and rnultiple stabilizing panels rnounted on outer walls of the main rods.
multiple side rods rnounted between two adjacent ones of the multiple main rods; and rnultiple stabilizing panels rnounted on outer walls of the main rods.
16. The negative-pressure wave generator as claimed in clairn 14, wherein the frarne has multiple main rods disposed vertically and connected to the Venturi tubes;
multiple side rods mounted between two adjacent ones of the multiple main rods; and rnultiple stabilizing panels mounted on outer walls of the main rods.
multiple side rods mounted between two adjacent ones of the multiple main rods; and rnultiple stabilizing panels mounted on outer walls of the main rods.
17. The negative-pressure wave generator as claimed in claim 1, wherein in the negative pressure mechanism, the at least one inlet branch tube is oval in cross section.
18. The negative-pressure wave generator as claimed in claim 16, wherein in the negative pressure mechanism, the at least one inlet branch tube is oval in cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2950473A CA2950473C (en) | 2016-12-02 | 2016-12-02 | Negative-pressure wave generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2950473A CA2950473C (en) | 2016-12-02 | 2016-12-02 | Negative-pressure wave generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2950473A1 true CA2950473A1 (en) | 2018-06-02 |
| CA2950473C CA2950473C (en) | 2018-10-23 |
Family
ID=62239809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2950473A Active CA2950473C (en) | 2016-12-02 | 2016-12-02 | Negative-pressure wave generator |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2950473C (en) |
-
2016
- 2016-12-02 CA CA2950473A patent/CA2950473C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA2950473C (en) | 2018-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7980832B2 (en) | Wave energy converter | |
| EP1915528B1 (en) | Free floating wave energy converter | |
| US6930406B2 (en) | Tide compensated swell powered generator | |
| JP4444279B2 (en) | production equipment | |
| EP2440775B1 (en) | Wave energy electrical power generation | |
| US7834475B1 (en) | Apparatus for converting wave energy | |
| US9127639B2 (en) | System and method for water expulsion from underwater hydropower plant and hydropower plant associated therewith | |
| US20070130929A1 (en) | Wave power generator | |
| CN108603481B (en) | Wide wave spectrum wave energy recovery device | |
| JP4628844B2 (en) | Wave energy utilization device | |
| CN109209741A (en) | A kind of wave-power device float | |
| US20100059999A1 (en) | Sea Floor Pump Tailrace Hydraulic Generation System | |
| US9657708B2 (en) | Pumped-storage system | |
| JP2016517923A (en) | Submersible hydroelectric generator device and method for draining water from such device | |
| US10415538B2 (en) | Negative-pressure wave generator | |
| EP2113657A2 (en) | Wave power plant | |
| US20130009401A1 (en) | Offshore hydro power station | |
| CA2950473A1 (en) | Negative-pressure wave generator | |
| EP3333415A1 (en) | Negative-pressure wave power converter | |
| TWI661120B (en) | Negative pressure wave power generation device | |
| WO2000017518A1 (en) | Apparatus for harnessing wave energy | |
| JP2017141799A (en) | Power generating system | |
| CN103089530A (en) | Wave energy conversion device and system | |
| CN111550357A (en) | Wave energy power generation equipment | |
| CN111550356A (en) | Wave energy power generation equipment |