TWI661120B - Negative pressure wave power generation device - Google Patents

Abstract

The negative pressure wave power generating device of the present invention includes a water current driving group and a power generating group which can be located in seawater. The water current driving group is provided with a plurality of venturi tubes, and the plurality of water tubes and the power generation set provided by the power generation group The culvert is connected. A generator set is set in the power generation culvert. When seawater passes through the venturi tube, a negative pressure is generated so that the seawater in the power generation culvert flows through the water pipe to the water flow drive group. A large pressure difference is formed between the pressure of the external sea water and the pressure of the back-end chamber, and driving the turbine enables the generator set to perform power generation operations, which has high power generation energy conversion efficiency, and is low in the water flow channel of the present invention. It is in a water pressure state, and it is not easy to burst and can reduce leakage. The overall structure is simple, pure and sturdy, and the maintenance cost during operation is low.

Description

Negative pressure wave power generation device

The invention relates to the field of continuous power generation of wave energy, in particular to a negative pressure wave power generation device.

At present, in the field of using the continuous power generated by waves for wave power generation, a variety of technologies have matured and have been tried for commercial operation or have been practically erected in the waters to test. In summary of the various power generation technologies used, including the use of Hydraulic type, Oscillating Water Column OWC, overtopping ... etc.

The hydraulic power generation technology uses a hydraulic system to convert wave energy into rotating mechanical energy and then generate electricity. The expected performance of the original design may still be achieved in the early stages of operation; however, the structure of the hydraulic system, including hydraulic cylinders and pistons, is a more sophisticated structure. The non-stop wave motion will cause wear and wear between the components that move with each other. In addition, because the hydraulic pressure in the pipeline is often in the high pressure range, leakage problems are also prone to occur between related components. Therefore, after this system is used for a period of time, the efficiency gradually decreases, and the system maintenance cost will also increase significantly.

When using the Oscillating Water Column OWC power generation technology, a wave of up and down oscillating water column is used in the pipe column to promote air flow and drive the generator to generate electricity. Although this kind of power generation technology has a simple structure, is not prone to failure, and the main equipment can be easily maintained without directly touching the seawater, it has the disadvantage that the energy conversion efficiency is lower because the air density is much lower than the seawater density.

Using overtopping power generation technology, it stores the waves that cross the ramp in a water tank floating on the sea surface, and maintains that the water level in the water tank must be more than three meters above the sea surface, and uses the water level difference to generate electricity. Although this power generation technology is not easy to be faulty and easy to maintain, but because it needs a wave height of more than three meters to achieve power generation benefits, there are not many sea areas that can reach this wave height for plant operation. Problems.

Furthermore, using the phase difference power generation technology of wave crest and trough, when the wave enters the power generation device, there will be a difference between high water level and low water level. When flowing from high water level to low water level, a unidirectional water flow will be formed to drive the power generation device to generate electricity. Although this power generation technology has a simple structure and low maintenance cost, it has the disadvantage that it can only use the wave potential energy of about half of the wave height to operate, and has a low energy conversion efficiency.

In view of the shortcomings of the foregoing prior art, the present invention redesigns a technology for generating electricity by using waves, which uses the power of waves to generate a large negative pressure and enables a large number of low-pressure water flows to continuously generate electricity through a generator set. The overall structure Simple and low maintenance costs during operation.

In order to achieve the foregoing object, the present invention uses a technical means to provide a negative pressure wave power generating device, which includes at least one water current driving group and a power generating group; the water current driving group includes a negative pressure mechanism and a frame body. And a float, the frame body interconnects the negative pressure mechanism with the float, the float has a buoyancy and can control the size of the buoyancy; the negative pressure mechanism includes a water inlet pipe, at least one water inlet branch pipe and at least one venturi tube, the One end of the water inlet branch pipe is connected to one end of the water inlet manifold, and the other end of the water inlet branch pipe is connected to the corresponding Venturi tube. The Venturi tube is longitudinally arranged; the Venturi tube is a hollow tube body having a throat portion. An upper nozzle and a lower nozzle, the upper nozzle and the lower nozzle are respectively located at two ends of the Venturi tube body, and the throat is formed in the Venturi tube and located at the upper nozzle and the Between the lower nozzles, the inner diameter of the throat is smaller than the inner diameter of the upper nozzle and the inner diameter of the lower nozzle. The throat and the water inlet branch pipe are connected to each other for conduction. The power generation unit includes at least one water pipe, one Power generation culvert, a central power station Platform and a generator set; one end of the water pipe is connected to the other end of the water inlet pipe of the negative pressure mechanism; the power generation culvert has a shell formed with a cavity, at least one perforation, a water flow part and a water inlet; the A cavity is formed inside the housing, each of the perforations is provided at the bottom of the housing, the other end of the water pipe is provided at the perforation and its end portion is in the cavity, the water flow part is formed in the middle of the housing, and the water inlet It is located above the shell and communicates with the chamber. The water flow part is between each end of the water pipe and the water inlet; the central power station platform and the power generation culvert are connected to each other, and the central power station platform has a buoyancy The buoyancy can be controlled. The generator set has a generator, a turbine and a drive shaft. The generator and the turbine form a power connection with the drive shaft. The generator is arranged on the platform of the central power station. At the water flow part of the power generation culvert.

The negative pressure wave power generation device further includes a backstop group, which is disposed at the end of the water pipe and located in the chamber, and has a nozzle capable of opening and closing the water pipe. The utility model has a body. The body is composed of a plurality of wall surfaces into a hollow body. Each of the wall surfaces is provided with a plurality of meshes. A backstop piece is provided on the wall surface, and one end of the backstop piece can be abutted on the wall surface.

In the negative pressure wave power generation device, the power generation culvert is further provided with a fence and a plurality of guide plates, and the fence is installed between the water inlet of the shell of the power generation culvert and the bottom of the shell of the central power station platform. The fence has a plurality of water holes; each of the guide plates is arranged at intervals between the housing provided with a water inlet of the power generation culvert and the bottom of the housing of the central power station platform, and each of the guide plates is located inside the fence, at An ultrasonic component is provided on two adjacent guide plates, and an ultrasonic irradiation area is formed between the two guide plates.

In the above-mentioned negative pressure wave power generating device, the float has a cylinder body, the outside of which is connected to the frame body, and a partition plate is provided in the inside. The partition plate divides the inside of the cylinder body into a first chamber and a The second chamber is provided with an air compressor on the partition, the air compressor having an air valve function; at least one pumping and draining machine is provided below the cylinder, the pumping and draining machine has a water valve function, and the pumping and draining machine One end of the opening is provided with a pipe fitting, and the other end opening is communicated with the second container chamber; the central power station platform has a casing, a partition plate is provided inside the casing, and the interior of the casing is divided into a third container chamber and A fourth chamber is provided with an air compressor on the partition, the air compressor having an air valve function; at least one pumping and draining machine is provided below the casing, the pumping and draining machine has a water valve function, and the pumping and drainage An opening at one end of the machine is in communication with the fourth container.

In the above-mentioned negative pressure wave power generating device, a tube is provided on the tube of the float, and the tube is connected to the central power station platform by a cable. The tube can be rotated relative to the tube of the tube to adjust to For the desired direction of movement, the aforementioned control can be controlled and driven by the remote end by wireless remote control. The propeller is provided with a propeller capable of generating thrust to move the water current driving group to a set position.

In the negative pressure wave power generating device, a GPS positioning system is further provided on the top of the cylinder of the float, and a GPS positioning system and an antenna group are provided on the shell of the central power station platform. The antenna group has a cable. And a floating ball, one end of the cable is connected to the floating ball and an antenna receiving end is provided on the floating ball, and the other end of the cable is connected to a hoist.

In the negative pressure wave power generating device, the negative pressure mechanism is further provided with a plurality of Venturi tubes and a plurality of connecting rods, each of which is a rod body, and is connected between the tubes of two adjacent Venturi tubes. The two ends of the connecting rod are connected and fixed to each other. The two ends of the connecting rod are respectively fixed to the Venturi tube and the water inlet pipe, and each of the Venturi tubes is connected to the frame body.

In the negative-pressure wave power generating device, the frame body has a plurality of stabilizing plates, a plurality of main rods, and a plurality of side rods. Each of the main rods is longitudinally disposed, and the side rods are disposed between two adjacent main rods. The plate is arranged at an outer position of the main rod, and each of the main rods and the corresponding venturi tube are connected and fixed to each other.

The present invention is applied by the foregoing technical means. When the water flow driving group and the negative pressure mechanism provided by the invention move up and down the waves, the water flow will rapidly flow through the venturi tube, and a pressure difference will be generated in the throat. Large negative pressure, the negative pressure mechanism and the power generation culvert of the power generation unit are connected by water pipes, so that a large amount of seawater continuously enters the power generation culvert, and drives the generator set installed in the power generation culvert to generate electricity. Because the entire power generation process is simple and the Seawater drives the turbine directly, so energy conversion efficiency is high.

Because most of the structure has no rotating parts and structures that can cause friction with each other, it can reduce wear and have high reliability, and the overall structure is simple, pure and sturdy, and the maintenance cost during operation is low.

Furthermore, because the water pressure values in all water flow channels are low pressure, it is not easy for each equipment or water pipe to burst, and leakage can be reduced.

Referring to FIG. 1, the negative-pressure wave power generating device of the present invention includes at least one water current driving group 1 and a power generating group 2, and each of the water current driving group 1 is connected to the power generating group 2 respectively, as shown in the figure. One specific embodiment is provided with six water current driving groups 1 and one power generation group 2, wherein each of the water current driving groups 1 may be disposed around the power generation group 2.

As shown in FIG. 2, FIG. 3 and FIG. 4, the water flow driving group 1 includes a negative pressure mechanism 10, a frame 20 and a float 30.

The negative pressure mechanism 10 includes a water inlet pipe 11, at least one water inlet pipe 12, and at least one venturi pipe 13. One end of the water inlet pipe 12 is connected to one end of the water inlet pipe 11, and the other end of the water inlet pipe 12 is corresponding to The Venturi tubes 13 are connected; as shown in the specific embodiment, a plurality of water inlet tubes 12 and a plurality of Venturi tubes 13 are provided, wherein each of the Venturi tubes 13 is longitudinally and spaced from each other.

The water inlet pipe 11 is a hollow pipe body, which can pass water flow, and two ends of the pipe body respectively have a nozzle.

The water inlet branch pipe 12 is a hollow pipe body through which water can pass, and the two ends of the pipe body respectively have a mouth opening. The mouth end of the water inlet branch pipe 12 and the mouth end of the water inlet main pipe 11 are connected to each other. As shown in FIG. 7, the shape of the nozzle of the water inlet branch pipe 12 is oval, and the shape of the cross section of the pipe body is oval, and the internal cross section of the pipe mouth is oval. The long axis of the pipe body is Located in the vertical position.

As shown in FIG. 5, the Venturi tube 13 is a hollow tube body, which can pass through the water flow caused by the upward and downward wave movement. The venturi 13 has a throat 131, an upper nozzle 132, and a lower nozzle 133. The upper nozzle 132 and the lower nozzle 133 are respectively located at both ends of the body of the venturi 13 and the throat 131 is formed in the venturi 13 and is located between the upper nozzle 132 and the lower nozzle 133, and the inner diameter of the 13 Chinese pipe 13 is smaller than the inner diameter of the upper 132 And smaller than the inner diameter of the lower nozzle 133. The Venturi 13 tube body is provided with a connection port 134 penetrating the wall surface of the tube, and the connection port 134 corresponds to the position of the throat portion 131 and communicates with the inside of the Venturi tube 13 body.

The inner pipe wall of the venturi tube 13 is smaller than the inner diameter of the upper nozzle 132 and the inner diameter of the lower nozzle 133 because the inner diameter of the throat portion 131 is smaller than the inner diameter of the upper nozzle 132 and the inner diameter of the lower nozzle 133. An inclined angle θ is formed between the center lines of the tubes, and the inclined angle θ is preferably 5 degrees to 7 degrees.

The underside of the frame body 20 and the negative pressure mechanism 10 are connected and fixed.

The float 30 and the upper part of the frame body 20 are connected and fixed to each other, and the water flow driving group 1 can be floated on the water surface by the float 30. The specific embodiment of the float 30 is a cylinder 300, which can be A hollow straight cylinder is connected to the outside of the cylinder 300.

The number of the water inlet branch pipes 12 provided in the present invention is the same as the number of the venturi pipes 13, and different numbers may also be provided. For example, two water inlet branch pipes 12 and one venturi tube 13 are connected to each other.

With reference to FIG. 5 and FIG. 6, the present invention can simultaneously drive the negative pressure mechanism 10 below the water surface to generate upward and downward displacements by wave up and down movements. At this time, water flow can be The body of the Venturi tube 13 flows rapidly, whether it flows from the upper nozzle 132 toward the lower nozzle 133 or from the lower nozzle 133 toward the upper nozzle 132. When water flows through the throat 131, Accelerated flow due to the change in the inner diameter of the tube will create a negative pressure at the junction of the throat 131 and the end of the inlet branch pipe 12, a considerable pressure between this negative pressure and a unit of atmospheric pressure (1 atm) at sea level. The pressure difference forces the seawater in the inlet main pipe 11 and each of the inlet branch pipes 12 to flow toward the connected Venturi pipe 13 and then flows into the sea through the upper or lower pipe opening 132 or 133.

Furthermore, because the negative pressure mechanism 10 is displaced with the same amplitude as the wave moves up and down, whether the float 30 moves up or down, the negative pressure mechanism 10 can generate negative pressure, and the float 30 moves up and down. The higher the frequency, the more negative the pressure will be.

As shown in FIG. 1, FIG. 2, and FIG. 3, the power generation unit 2 includes at least one water pipe 40, a power generation culvert 50, a central power station platform 60, and a power generation unit 70; The embodiment is provided with a plurality of water pipes 40.

The water pipe 40 is a long pipe body. A preferred embodiment of the long pipe body may be a hose body. One end of the water pipe 40 is connected to the other end of the water inlet pipe 11 of the negative pressure mechanism 10, and the other end of the water pipe 40 It is connected to the power generation culvert 50 so that each of the water flow driving group 1 and the power generation group 2 are connected to each other.

With reference to FIG. 8 and FIG. 9, the power generation culvert 50 is a hollow body. A preferred embodiment of the power generation culvert 50 is a circular hollow cylinder. The power generation culvert 50 has a casing 51 formed with a cavity 511, at least one perforation 512, a water flow portion 513, and a water inlet 514. The cavity 511 is formed inside the casing 51, each of which A perforation 512 is provided at the bottom of the casing 51, each of the water pipes 40 is disposed at each of the perforations 512 and its end portion is in the chamber 511, the water flow portion 513 is formed in the middle of the casing 51, and the water inlet 514 is located at The housing 51 is above the housing 51 and communicates with the chamber 511. The water flow portion 513 is located between the end of each of the water pipes 40 and the water inlet 514. In the embodiment shown in the figure, the water flow portion 513 can be formed into a neck shape in the middle portion of the casing 51.

The central power station platform 60 is a hollow body, so that the power generation group 2 can float on the water surface. The central power station platform 60 is connected and fixed to the power generation culvert 50, and the water inlet 514 of the power generation culvert 50 communicates with the external seawater. It can enter the chamber 511 through the water inlet 514.

As shown in FIG. 2, the generator set 70 includes a generator 71, a turbine 72, and a drive shaft 73. The generator 71 and the turbine 72 form a power connection with the drive shaft 73. A speed increaser 75 may be further provided on the shaft 73. The speed increaser 75 may increase the rotation speed of the turbine 72 and transmit the speed to the generator 71. This part of the generator set 70 is constructed in the prior art and will not be described in further detail. description. The generator 71 of the generator set 70 is disposed on the central power station platform 60. A casing 700 is provided in a housing 600 of the central power station platform 60, and the generator 700 can be installed inside the casing 700. A bearing 74 may be provided at the bottom of the body 600. The bearing 74 is watertight. The driving shaft 73 may be disposed through the bearing 74. The turbine 72 is located at the water flow part 513 of the power generation culvert 50, so that the seawater passes through the water inlet 514. The water flow part 513 enters the chamber 511 and then flows into the water pipes 40. When seawater passes through the turbine 72 located in the water flow part 513, the turbine 72 can be driven to rotate, so that the generator set 70 can generate electricity.

In actual application, since each of the water current driving groups is located in seawater and the negative pressure mechanism 10 is moved by the up and down movements of seawater waves, a negative is formed at the throat 131 in the venturi 13 At this time, the seawater in the water pipe 40, the water inlet pipe 11 and the water inlet branch pipe 12 will flow quickly in one direction toward the venturi pipe 13 and flow out of the sea from the upper pipe mouth 132 or the lower pipe mouth 133 to the sea. The chamber 511 of the power generation culvert 50 is connected to the water pipe 40, so that the seawater in the chamber 511 flows into the water pipe 40, and the external seawater enters the chamber 511 of the power generation culvert 50 through the water inlet 514. The turbine 72 can be driven to rotate, so that the generator set 70 can generate electricity. Therefore, negative pressure can be generated by the up and down movement of the seawater waves, and the power generation operation can be continuously performed.

The negative pressure mechanism 10 may further include a plurality of connecting rods 14, wherein each of the connecting rods 14 is a rod body, and the two connecting rods of the two venturi tubes 13 are connected and fixed to each other at both ends of the connecting rod 14. Or, two ends of the connecting rod 14 are respectively fixed to the venturi 13 and the water inlet pipe 11. As shown in FIG. 3 and FIG. 4, one specific embodiment of the present invention is provided with six Venturi tubes 13, and the connecting rods are respectively provided between two adjacent Venturi tubes 13 and above and below. 14. The connecting rod 14 is provided between the lower part of the venturi tube 13 and the water inlet pipe 11, and the water inlet pipe 11 is located at the central position of each of the venturi pipes 13, so that the overall outline is hexagonal;

The negative pressure mechanism 10 may further include a diversion cover 15. The diversion cover 15 has a cone shape and is disposed above the connection between the water inlet pipe 11 and each of the water inlet branch pipes 12.

A specific embodiment of the frame body 20 may include a plurality of stabilizer plates 21, a plurality of main rods 22, and a plurality of side rods 23. Each of the main rods 22 is longitudinally disposed, and the side rods are provided between two adjacent main rods 22. 23. A stabilizer plate 21 is provided at an outer position of each of the main rods 22. Each of the main rods 22 and the corresponding venturi tube 13 are connected and fixed to each other. As shown in FIG. 3 and FIG. 4, in the specific embodiment of the present invention, two lateral poles 23 are arranged between the adjacent two upright main poles 22 in the upper and lower positions and in a horizontal direction, and are arranged to cross each other.的 两 杆 23。 The two sides 23.

As shown in FIG. 2 and FIG. 3, a partition 301 is provided inside the cylinder 300 of the float 30. The partition 301 partitions the interior of the cylinder 300 with a first container 31 and a second container 32. As shown in the figure, the first receiving chamber 31 can be located above the second receiving chamber 32. An air compressor 33 is provided on the partition plate 301. The air compressor 33 has an air valve function. The structure of the air compressor 33 with the air valve function is the prior art and therefore will not be described in detail. The openings can communicate with the first storage chamber 31 and the second storage chamber 32, respectively. The air in the second storage chamber 32 can be transported and stored in the first storage chamber 31 after being pressurized, or the first storage chamber 31 can be provided. The high-pressure air inside is sent to the second container 32 under reduced pressure.

The float 30 is provided with at least one pumping and draining machine 34 below the cylinder 300. The pumping and draining machine 34 has a water valve function. The structure of the pumping and draining machine 34 with a water valve function is the prior art and therefore will not be described in detail. One end of the pumping and drainage machine 34 is provided with a pipe piece 341, and the other end of the opening is connected to the second container chamber 32. The pumping and drainage machine 34 can convey seawater into the second container chamber 32, or the second container chamber 32. The sea water is discharged.

As shown in FIG. 8, a preferred embodiment of the central power station platform 60 is a circular hollow disk body having a shell 600. A partition plate 601 is provided inside the shell 600. The housing 600 is internally partitioned with a third container chamber 61 and a fourth container chamber 62. The third container chamber 61 may be located above the fourth container chamber 62 as shown in the figure. An air compressor 63 is provided on the partition plate 601. The air compressor 63 has an air valve function. The structure of the air compressor 63 with the air valve function is the prior art and therefore will not be described in detail. The openings can communicate with the third storage chamber 61 and the fourth storage chamber 62, respectively. The air in the fourth storage chamber 62 can be transported and stored in the third storage chamber 61 after being pressurized, or a third storage chamber 61 can be provided. The high-pressure air inside is sent to the fourth container 62 under reduced pressure.

The central power station platform 60 is provided with at least one pumping and draining machine 64 below the casing 600. The pumping and draining machine 64 has a water valve function. The structure of the pumping and draining machine 64 with a water valve function is a prior art and therefore will not be described in detail. It is described that one end of the pumping and draining machine 64 communicates with the fourth container 62, and the pumping and draining machine 64 can transport seawater into the fourth container 62 or discharge the seawater in the fourth container 62 to the sea. .

As shown in FIG. 16, when the field set by the present invention is in a general climate, the float 30 of each of the water current driving group 1 and the central power station platform 60 of the power generating group 2 can be floated on the sea surface, Electricity is generated by sea water waves.

As shown in FIG. 15, if the climate of the field where the present invention is installed is in a bad state, at this time, the air compressor 33 of the float 30 can be activated to store the air in the second chamber 32 in the first chamber in a smaller space. 31, and the air compressor 63 of the central power station platform 60 is activated to store the air in the fourth container chamber 62 in the third container chamber 61 in a relatively small space, and the external seawater is pumped in by a drainage pump 34 It is located in the second container chamber 32, and the external seawater is pumped into the fourth container chamber 62 by a pumping and drainage machine 64. Since the buoyancy generated by the float 30 and the central power station platform 60 is reduced, borrowing Due to the weight of the power generating device of the present invention, it can be dived to a certain depth in the sea, for example, at a water depth of 40 to 60 meters, so that the unit of the present invention will not be damaged by severe weather; specifically, the present invention can be installed The gyroscope and sonar ranging system and other equipment, combined with computer calculations, can calculate the dive depth of the present invention and the water displacement required to maintain that depth. The details of the aforementioned structure and the use methods are all It is the prior art and will not be described in detail Detailed description.

After the climate of the field set by the present invention is restored, the pumping and drainage machine 34 can be started to discharge the seawater in the second container 32 to the sea, and the air compressor 33 can be started to allow the air in the first container 31 to enter the second container. In the chamber 32, at this time, the buoyancy formed by the second container 32 of the float 30 can cause the water current driving group 1 to float, and the pumping and drainage machine 64 is started to discharge the seawater in the fourth container 62 to the sea, and The air compressor 63 is activated to allow the air in the third storage chamber 61 to enter the fourth storage chamber 62. At this time, the buoyancy formed by the hollow casing 600 of the central power station platform 60 can cause the power generation group 2 to float to the power generation operation. position. As shown in Figure 16.

With reference to FIG. 8 and FIG. 9, the present invention further provides a fence 52 around the water inlet 514 of the casing 51 of the power generation culvert 50, and the fence 52 is installed between the casing 51 and the central power station platform 60. Between the bottom of the housing 600, the fence 52 has a plurality of water holes 521, so that large-scale water debris or organisms can be blocked to prevent being drawn into the power generation culvert 50, and seawater can pass through the water holes 521 through the water inlet 514 flows into the chamber 511, and because the moving rhythm of the exposed structure of the present invention is synchronized with the undulations of waves, it will not cause harm to marine life.

With reference to FIGS. 10 and 11, the present invention may further include a plurality of guide plates 53 spaced apart from each other at the housing 51 provided with the water inlet 514, and two adjacent guide plates 53 may be provided with ultrasonic waves. Component 54. The ultrasonic component 54 is a prior art and therefore will not be further described. Thereby, an ultrasonic irradiation area 530 is formed between the two guide plates 53, and the water hole 521 flows into and passes through the seawater of the ultrasonic irradiation area 530. The sea creatures or their spores interfere with their physiological functions by the ultrasonic shock waves emitted by the ultrasonic component 54, causing temporary disability, unable to attach to the wall surface of the water flow channel, and will be discharged with the water flow.

As shown in FIG. 8, the present invention further includes a plurality of support rods 55, each of which is connected between the exterior of the housing 51 of the power generation culvert 50 and the bottom of the housing 600 of the central power station platform 60. The supporting rod 55 is provided with a reinforcing function, which can increase the overall strength of the power generation group 2.

With reference to FIG. 12 and FIG. 13, the present invention further provides a backstop group 41 at the end of each of the water pipes 40. The backstop group 41 is located in the chamber 511 of the power generation culvert 50 and the end of the water pipe 40.部 连接。 Connection. One specific embodiment is that the backstop group 41 has a body 411, which is composed of a plurality of wall surfaces as a hollow body. Each of the wall surfaces is provided with a plurality of mesh holes 412, and a backstop piece 413 is provided on the wall surface. One end of the check piece 413 is connected to the wall surface and can be abutted. When the seawater in the chamber 511 flows in through the mesh 412 of the body 411, the water flow can push away the check piece 413, and when the water flows in the reverse direction, It is blocked by the check piece 413 and cannot flow out. As shown in FIG. 14, the seawater in the water pipe 40 can maintain a unidirectional flow. Furthermore, since the check group 41 provided at the end of each water pipe 40 has a valve function, when any leakage occurs in any one of the water pipes 40 or the negative pressure mechanism 10, the pressure change in the water flow channel can be used to change the water pipe 40. It should be closed by itself to maintain the normal operation of the overall power generation device of the present invention.

As shown in FIG. 2 and FIG. 8, the present invention further includes a GPS positioning system 302 on the top of the cylinder 300 of the float 30, and a GPS positioning system 602 and an antenna group on the housing 600 of the central power station platform 60. 603, wherein the structure and control of the GPS positioning system 302, the GPS positioning system 602, and the antenna group 603 are existing technologies and will not be described further. Therefore, the GPS positioning system 302 and the GPS positioning system 602 can be remotely controlled. Observe where the field is set by the present invention.

As shown in FIG. 15, the antenna group 603 includes a cable and a floating ball. One end of the cable is connected to the floating ball and an antenna receiving end is provided on the floating ball. The other end of the cable is connected to a hoist. The structures are all prior art and therefore will not be described in detail. When power generation unit 2 and its central power station platform 60 descend to the surface, the hoist will release the cable and use the float to move the receiving end of the antenna to the water surface. When power generation unit 2 and its central power station platform 60 descend, When floating, the hoist winds up the cable. At this time, the antenna receiving end of the antenna group is located on the housing 600 of the central power station platform 60, so that the signal between the present invention and the far end can be kept connected at any time and carried out. control.

A propeller 35 may be provided on the pipe member 341 of the float 30. The propeller 35 is interconnected with the central power station platform 60 by a cable. The propeller 35 may be controlled by a control mechanism so that the propeller 35 may be opposed to the propeller 35. The tube 341 of the float 30 is rotated to control and adjust to the desired moving direction. The aforementioned control mechanisms can be controlled and driven by the remote control by wireless remote control. Furthermore, the propeller 35 is provided with a propeller capable of generating thrust, so as to float upward. The water current driving group 1 moves to the set direction position, and the structure of the propeller 35 and the control mechanism for driving the propelling direction of the propeller 35 are the prior art, so they will not be described in detail. When each of the water current driving groups 1 of the present invention observes a deviation from a set area via the GPS positioning system 302, the remote control can start and control the operation of the thruster 35 by a wireless remote control, thereby deviating the water current driving groups 1 from a predetermined position. Moving to the set position can also ensure that the distance between each of the water current driving groups 1 or the distance from the power generating group 2 can be ensured to be located in an appropriate working space without causing mutual interference.

The power required by each device or control device of the present invention can be supplied by the power generated by itself; in addition, the power required by all the devices on the float 30 of the water current driving group 1 and the central power station platform 60 The signal transmission is connected by cables.

The number of the negative pressure mechanisms 10 of the water flow driving group 1 according to the present invention can be expanded as needed, and there is no limit on the number. When the number of the negative pressure mechanisms 10 provided is greater, the number of units flowing through the power generation culvert 50 The flow to the water flow will increase, at this time the smaller the pulsation and the more stable the flow. In addition, because the unidirectional water flow flowing through the power generation culvert 50 uses a unit of atmospheric pressure at sea level and the negative pressure generated by the negative pressure mechanism 10 to drive, the short-term frequency is high and the wave height is driven. Intermediate waves of about 2 to 3 meters will be suitable for the power generation use of the present invention, so that the present invention can set more fields, that is, there can be more choices for setting up the factory sea area.

According to one specific embodiment of the present invention, data obtained through a hydraulic model experiment shows that when the flow rate of the throat portion 131 of the venturi 13 reaches approximately 15 m / sec, the water pressure value of the throat portion 131 is approximately 0.182 bar. Indicates that the throat 131 generates a negative pressure of about 0.8313 bar lower than the atmospheric pressure (1.0133 bar) at sea level. According to the actual measurement, this pressure difference of 0.8313 bar can completely overcome the seawater flow from the water inlet 514 through the water flow section 513, the water pipe 40, the water inlet pipe 11, and the water inlet pipe 12 inside the power generation culvert 50. In addition to the frictional resistance, there is still enough force to keep the water flow velocity of the water flow portion 513 above about 2 m / sec, which meets the requirement of continuously pushing the turbine 72.

Furthermore, it is known through hydraulic model experiments that as long as the wave height reaches about 0.8m and the period is between about 1.2 seconds and 4 seconds, the water flow resistance on the inner wall of the venturi 13 can be completely overcome, and the throat 131 The flow velocity is maintained above about 15 m / sec.

In a specific embodiment of the present invention, when the size of the venturi tube 13 is as shown in FIG. 17 and FIG. 18, the inner diameter of the throat portion 131 is ψ100㎝, the upper nozzle 132 and the bottom The inner diameter of the nozzle 133 is ψ500㎝, the inner diameter of the inlet manifold 11 is ψ100㎝, the inner diameter of the branch pipe 12 is 36㎝, the short axis is 100㎝, and the venturi 13 is The length is 4500 在. When the venturi effect is applied, the flow velocity in the tube can be increased from the initial flow velocity of the upper nozzle 132 and the lower nozzle 133 to about 1 m / sec, and the fastest flow velocity at the throat 131 is about 15 m / sec.

In a specific embodiment of the present invention, when the diameter of the internal turbine 72 is set to ψ400ψ in the power generation culvert 50, the inner diameter of the narrowest part of the power generation culvert 50 needs to be ㎝410㎝, and its cross-sectional area is about 131959㎝ ² . When the inner diameter of each pipe 40 is set to ψ100㎝, in terms of the cross-sectional area of about 40 7850㎝ pipe ^2, in order to allow rapid discharge of water flowing through the power Conduit 50, there must be a sufficient number of support pipe 40 through the water. Calculate the number of water pipes 40 installed. The formula is: the cross-sectional area of the narrowest part of the power generation culvert 50 is 131959㎝ ² / the cross-sectional area of each water pipe 40 is 7850㎝ ² ≒ 16.81, so the number of water pipes 40 is calculated to be about 17 It is fully operational. However, in order to reduce the pulsation of the water flow and improve the quality of power generation, it has been learned through multiple experiments that a configuration that doubles the number of water pipes 40 and the negative pressure mechanism 10 in 34 groups is the most cost effective.

1‧‧‧Water Drive Group

2‧‧‧ Power Generation Unit

10‧‧‧ Negative pressure mechanism

11‧‧‧ Water inlet main

12‧‧‧ water inlet pipe

13‧‧‧ Venturi

131‧‧‧throat

132‧‧‧Upper nozzle

133‧‧‧lower nozzle

134‧‧‧Connector

14‧‧‧ connecting rod

15‧‧‧ Diversion cover

20‧‧‧frame

21‧‧‧Stabilizing plate

22‧‧‧ Main Pole

23‧‧‧Side lever

30‧‧‧ float

300‧‧‧ cylinder

301‧‧‧ partition

302‧‧‧GPS positioning system

31‧‧‧First Room

32‧‧‧Second Room

33‧‧‧air compressor

34‧‧‧Extractor

341‧‧‧Pipe Fittings

35‧‧‧ Thruster

40‧‧‧ water pipe

41‧‧‧Anti-stop group

411‧‧‧Body

412‧‧‧ mesh

413‧‧‧Backstop

50‧‧‧Power generation culvert

51‧‧‧shell

511‧‧‧ chamber

512‧‧‧perforation

513‧‧‧Water Department

514‧‧‧Inlet

52‧‧‧ Fence

521‧‧‧Water Hole

53‧‧‧Guide

530‧‧‧ Ultrasonic irradiation area

54‧‧‧ Ultrasonic components

55‧‧‧ pole

60‧‧‧ Central Power Station Platform

600‧‧‧shell

601‧‧‧ partition

602‧‧‧GPS positioning system

603‧‧‧antenna group

61‧‧‧Third Room

62‧‧‧Fourth chamber

63‧‧‧air compressor

64‧‧‧Extractor

70‧‧‧Generator

71‧‧‧ Generator

72‧‧‧ Turbine

73‧‧‧Drive shaft

74‧‧‧bearing

75‧‧‧Speed Increaser

700‧‧‧ perimeter

FIG. 1 is a schematic diagram of an embodiment of the present invention. FIG. 2 is a schematic sectional view of an embodiment of the present invention. FIG. 3 is an external perspective view of a water flow driving group according to the present invention. FIG. 4 is an exploded perspective view of a water flow driving group of the present invention. FIG. 5 is a schematic diagram of the water flow when the negative pressure mechanism of the water flow driving group of the present invention is floating. FIG. 6 is a schematic diagram of a water flow operation when a negative pressure mechanism of a water flow driving group of the present invention sinks. Fig. 7 is a sectional view of a water inlet branch pipe according to the present invention. FIG. 8 is a schematic perspective cross-sectional view of a power generating unit according to the present invention. FIG. 9 is a schematic diagram of the appearance of a power generation culvert according to the present invention. FIG. 10 is a schematic diagram of a water flow entering a power generation culvert according to the present invention. FIG. 11 is a schematic diagram of an ultrasonic irradiation area provided on a power generation culvert according to the present invention. FIG. 12 is a schematic diagram of the appearance of a backstop group according to the present invention. FIG. 13 is a schematic diagram of water flow in a water pipe and a backstop group according to the present invention. FIG. 14 is another schematic view of water flow in a water pipe and a backstop group according to the present invention. FIG. 15 is a schematic diagram of a state of sinking in the present invention. FIG. 16 is a schematic diagram of a floating surface state of the present invention. FIG. 17 is a schematic diagram of a negative pressure mechanism with dimensions indicated in the present invention. FIG. 18 is a schematic diagram showing dimensions of a water inlet branch pipe according to the present invention.

Claims (9)

A negative pressure wave power generating device includes at least one water current driving group and a power generating group. The water current driving group includes a negative pressure mechanism, a frame body and a float, and the frame mutually connects the negative pressure mechanism and the float. Connected, the float has a buoyancy; the negative pressure mechanism includes a water inlet pipe, at least one water inlet pipe and at least one venturi tube, one end of the water inlet pipe is connected to one end of the water inlet pipe, and the other end of the water inlet branch pipe is corresponding to the corresponding The venturi is connected in a longitudinal direction; the venturi is a hollow tube body having a throat, an upper nozzle and a lower nozzle, and the upper nozzle and the lower nozzle are respectively located at At both ends of the Venturi tube body, the throat is formed in the Venturi tube and is located between the upper nozzle and the lower nozzle, and the inner diameter of the throat is smaller than the inner diameter of the upper nozzle and the The inner diameter of the lower pipe mouth, the throat and the water inlet branch pipe are interconnected and conducted; the power generation unit includes at least one water pipe, a power generation culvert, a central power station platform and a generator set; one end of the water pipe and the negative pressure mechanism The other end of the water inlet pipe is connected; the The electric culvert has a casing, the casing is formed with a cavity, at least one perforation, a water flow part and a water inlet; the cavity is formed inside the casing, and each of the perforations is provided at the bottom of the casing, and the water tube The other end is arranged in the perforation and the end part is in the chamber. The water flow part is formed in the middle section of the shell. The water inlet is located above the shell and communicates with the chamber. The water stream part is at the end of each water pipe. The central power station platform and the power generation culvert are connected to each other, the central power station platform has a buoyancy; the generator set has a generator, a turbine and a drive shaft, the generator and the turbine A power connection is formed by the drive shaft, the generator is arranged on the platform of the central power station, and the turbine is located at the water flow part of the power generation culvert. The negative pressure wave power generating device according to claim 1, further comprising a backstop group, the backstop group is disposed at an end of the water pipe and located in the chamber, and has a nozzle capable of opening and closing the water pipe, The backstop group has a body, which is composed of a plurality of wall surfaces as a hollow body. Each of the wall surfaces is provided with a plurality of mesh holes, and a backstop plate is provided on the wall surface. . The negative pressure wave power generating device according to claim 1, wherein the power generation culvert is further provided with a fence and a plurality of guide plates, the fence is installed at the water inlet of the shell of the power generation culvert and the bottom of the shell of the central power station platform In between, the fence has a plurality of water holes; each of the guide plates is arranged at intervals between the shell of the power generation culvert with a water inlet and the bottom of the shell of the central power station platform, and each of the guide plates is located in the fence Inside, an ultrasonic component is provided on two adjacent guide plates, and an ultrasonic irradiation area is formed between the two guide plates. The negative pressure wave power generating device according to claim 2, further provided with a fence and a plurality of guide plates, the fence is installed between the water inlet of the shell and the bottom of the shell of the central power station platform, and the fence has A plurality of water holes; each of the guide plates is arranged at intervals between the shell of the power generation culvert with a water inlet and the bottom of the shell of the central power station platform, and each of the guide plates is located inside the fence and in two phases An ultrasonic component is arranged on the adjacent guide plate, and an ultrasonic irradiation area is formed between the two guide plates. The negative pressure wave power generating device according to any one of claims 1 to 4, wherein the float has a cylinder body, the outside of which is connected to the frame body, and a partition plate is provided in the inside, and the partition body is a part of the cylinder body. The partition has a first storage chamber and a second storage chamber. An air compressor is provided on the partition, and the air compressor has an air valve function. At least one pumping and draining machine is arranged below the cylinder. With a water valve function, one end of the pumping and drainage machine is provided with a pipe fitting, and the other end opening is in communication with the second container chamber; the central power station platform has a casing, a partition plate is provided inside the casing, and the casing Partial partition has a third storage chamber and a fourth storage chamber. An air compressor is provided on the partition, and the air compressor has an air valve function. At least one pumping and draining machine is arranged below the casing, and the pumping and draining The machine has a water valve function, and one end of the pumping and draining machine is in communication with the fourth chamber. The negative pressure wave power generating device according to claim 5, wherein a tube of the float is provided with a thruster, and the thruster is connected to the central power station platform by a cable, and the thruster can rotate relative to the tube of the float The control is adjusted to a desired moving direction. The foregoing control can be controlled and driven by a remote control by a remote control. The thruster is provided with a propeller capable of generating thrust to move the water current driving group to a set position. The negative pressure wave power generating device according to claim 6, wherein a GPS positioning system is further provided on the top of the cylinder of the float, and a GPS positioning system and an antenna group are provided on the casing of the central power station platform. The antenna The group has a cable and a floating ball, one end of the cable is connected to the floating ball and an antenna receiving end is provided on the floating ball, and the other end of the cable is connected to a hoist. The negative pressure wave power generating device according to claim 1, wherein the negative pressure mechanism is further provided with a plurality of Venturi tubes and a plurality of connecting rods, each of which is a rod body, and the tube body of two adjacent Venturi tubes is The two ends of the connecting rod are connected and fixed to each other. The two ends of the connecting rod are respectively fixed to the venturi tube and the water inlet pipe, and each of the venturi tubes is connected to the frame body. The negative pressure wave power generating device according to claim 8, wherein the frame body has a plurality of stabilizing plates, a plurality of main rods, and a plurality of side rods, each of the main rods is longitudinally disposed, and the side rods are disposed on two adjacent main rods In the meantime, the stabilizing plate is disposed at an outer position of the main rod, and each of the main rods and the corresponding venturi are connected and fixed.