CN110671257A

CN110671257A - Offshore power generation device

Info

Publication number: CN110671257A
Application number: CN201910965613.1A
Authority: CN
Inventors: 李俊来
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-01-10
Anticipated expiration: 2039-10-12
Also published as: CN110671257B

Abstract

The invention belongs to the technical field of offshore power generation, and relates to an offshore power generation device. The wind power generation device comprises a floating body, wherein a support frame is arranged on the floating body, a wind power generation mechanism capable of converting wind energy into electric energy is arranged on the support frame, a plurality of floating barrels are arranged around the floating body, and a first rotating sleeve is arranged on the floating body; a telescopic mechanism is arranged between the first rotating sleeve and each buoy, and a second rotating sleeve is arranged on the supporting frame; a second connecting rod is arranged between the second rotating sleeve and each buoy; an internal gear is fixedly arranged on the second rotating sleeve, a first generator is further arranged on the floating body, and an output shaft of the first generator is in meshed connection with the internal gear through a transmission mechanism. The invention has the advantages that: the energy sources such as wind energy, wave energy and the like are effectively utilized to generate electricity, and meanwhile, the stability of the floating body is improved.

Description

Offshore power generation device

Technical Field

The invention belongs to the technical field of offshore power generation, and relates to an offshore power generation device.

Background

With the continuous development of economy, the development of land energy has failed to meet the demand of human beings for energy. In the sea where 71% of the surface of the ball is occupied, a large amount of novel energy is stored. The development and utilization of new ocean energy are receiving more and more extensive attention from international society. The energy sources such as wind energy, wave energy, tidal current energy and the like are inexhaustible as renewable new energy sources, and the development and utilization of the renewable new energy sources are widely concerned.

In the prior art, the application number is 201510066938.8, and the structure of the wave energy, wind energy and tidal current energy combined power generation device comprises a wind power generation device, a wave energy power generation device, a tidal current energy power generation device, a floating body and a battery pack; the wind power generation device, the wave energy power generation device and the battery pack are fixed on the floating body, the tidal current energy power generation device is connected with the floating body through a support rod, and the wind power generation device, the wave energy power generation device, the tidal current energy power generation device and the battery pack are electrically connected with an inverter rectifier fixed on the floating body through conducting wires. The wave energy, wind energy and tidal current energy combined power generation device captures wave energy, wind energy and tidal current energy, and sends the wave energy, the wind energy and the tidal current energy to the battery pack through rectification, or directly supplies the wave energy, the wind energy and the tidal current energy to loads such as a buoy, a submarine booster and the like for use, and achieves the functions of primary conversion from ocean energy to electric energy and self power generation of the device.

However, the wind will increase the lateral oscillation of the floating body, and the waves will make the floating body constantly float, which will reduce the power generation efficiency and even cause the floating body to overturn, causing serious damage to the equipment.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides an offshore power generation device, which aims to solve the technical problems that: how to utilize energy sources such as wind energy, wave energy and the like to generate electricity and improve the stability of the floating body.

The invention is realized by the following technical scheme: an offshore power generation device comprising a cylindrical float, further comprising:

the cylindrical support frame is coaxially arranged on the upper side surface of the floating body; the supporting frame is provided with a wind power generation mechanism capable of converting wind energy into electric energy;

the plurality of floating cylinders are arranged around the periphery of the floating body; the floating body is coaxially arranged and is rotatably connected with a first rotating sleeve; a telescopic mechanism is arranged between the first rotating sleeve and each buoy, the telescopic mechanism is provided with a telescopic piece and a cylinder body, the telescopic piece can extend out of and retract into the cylinder body, the outer end of the telescopic piece is always outside the cylinder body, the outer end of the telescopic piece is movably connected with the buoy through a first connecting rod, and the cylinder body is hinged on the first rotating sleeve; a second rotating sleeve is rotatably arranged on the supporting frame; a second connecting rod is arranged between the second rotating sleeve and each buoy; one end of the second connecting rod is hinged on the second rotating sleeve, and the other end of the second connecting rod is hinged on the floating barrel; an annular internal gear is fixedly arranged on the second rotating sleeve, and the internal gear and the floating body are coaxially arranged; the floating body is also provided with a first generator, and an output shaft of the first generator is meshed and connected with the internal gear through a transmission mechanism.

In the offshore power generation device, an installation cavity is formed in the floating body, an energy accumulator is arranged in the installation cavity, and the energy accumulator is electrically connected with the first power generator; the first generator is arranged in the mounting cavity; the axis of the output shaft of the first generator is parallel to the axis of the floating body; the transmission mechanism comprises a first gear, and the first gear is coaxially and fixedly arranged on an output shaft of the first generator; and a second gear is arranged between the first gear and the internal gear and is respectively meshed with the first gear and the internal gear.

In the offshore power generation device, a cylindrical second shell is arranged on the lower side surface of the floating body, and the axis of the second shell is perpendicular to the axis of the floating body; the second shell is axially provided with a water flow channel, a water moving impeller capable of converting kinetic energy of flowing seawater into electric energy is arranged in the second shell, and the axis of the pivot of the water moving impeller is parallel to the axis of the second shell.

In the marine power generation device, an installation seat is fixedly arranged on the lower side surface of the floating body, a connection seat corresponding to the installation seat is fixedly arranged on the upper side surface of the second shell, a rotating shaft is arranged between the installation seat and the connection seat, one end of the rotating shaft is rotatably arranged on the installation seat, and the other end of the rotating shaft is fixedly arranged on the connection seat; the connecting seat is provided with at least one arc-shaped groove, the mounting seat is fixedly provided with an L-shaped limiting rod, and a cross rod of the L-shaped limiting rod is arranged in the groove in a sliding manner; and a guide plate is fixedly arranged on the lower side surface of the second shell.

In the offshore power generation device, the cylinder of the telescopic mechanism is a cylindrical shell, the telescopic part comprises a piston and a piston rod, and the piston is movably arranged in the cylindrical shell; one end of the piston rod is fixedly arranged on the piston, the other end of the piston rod extends out of the cylindrical shell, and the end part of the piston rod is hinged with the first connecting rod; the piston rod is sleeved with a return spring; one end of the reset spring is pressed against the inner wall of the cylindrical shell, and the other end of the reset spring is pressed against the piston.

In the offshore power generation device, the interior of the cylindrical shell is divided into two chambers by the piston, and the inner wall of each chamber is provided with the water inlet pipe and the first water discharge pipe; one end of the water inlet pipe extends out of the cylindrical shell, and a water inlet check valve is arranged on the water inlet pipe; a water collecting tank is arranged below each cylindrical shell and is connected with the cylindrical shells through two first drainage pipes; the two adjacent water collecting tanks are communicated through a connecting pipe; one of them be connected with the second drain pipe on the header tank, be provided with the drainage check valve on the second drain pipe, the water that the second drain pipe discharged spouts to hydrodynamic impeller.

In the offshore power generation device, each buoy is internally provided with a working cavity, a deflection disc is rotatably arranged in each working cavity, a heavy block is fixedly arranged on each deflection disc, a second power generator is further arranged in each working cavity, and an output shaft of each second power generator is in transmission connection with a pivot of each deflection disc.

In an above-mentioned marine power generation device, the annular water cavity has been seted up on the second casing, the annular water cavity is linked together with the second drain pipe, a plurality of water spray channel has been seted up on the inner wall in annular water cavity, a plurality of water spray channel encircles the second casing axis, and every water spray channel all has the water jet, every the water jet all faces hydrodynamic impeller.

In the marine power generation device, two fixed cutters are fixedly arranged on the inner wall of the second shell, a movable cutter rotating shaft is rotatably arranged in the second shell, the movable cutter rotating shaft is in meshing transmission with a pivot of the hydrodynamic impeller, two movable cutters are fixedly arranged on the movable cutter rotating shaft, and each movable cutter and the fixed cutters form a shearing structure.

In the offshore power generation device, the wind power generation mechanism comprises a cylindrical first shell, and the axis of the first shell is perpendicular to the axis of the floating body; the first shell is axially provided with an airflow channel, and a wind impeller capable of converting wind energy into electric energy is arranged in the first shell.

In the offshore power generation device, an air cavity is formed in the support frame, a water pipe is connected to the bottom of the air cavity, one end of the water pipe extends out of the support frame, and the end part of the water pipe is immersed in seawater; the inner wall of the air cavity is also respectively connected with an air inlet pipe and an air outlet pipe, and one end of the air inlet pipe extends out of the support frame; one end of the exhaust pipe extends out of the support frame, and exhaust gas at the end part is sprayed to the wind moving impeller; and the air inlet pipe and the exhaust pipe are respectively provided with an air inlet one-way valve and an exhaust one-way valve.

In the marine power generation device, the first shell is provided with an annular air cavity, the annular air cavity is communicated with the exhaust pipe, the inner wall of the annular air cavity is provided with a plurality of air injection channels, the air injection channels surround the axis of the first shell, each air injection channel is provided with an air injection port, and each air injection port faces the wind-driven impeller.

In the offshore power generation device, an installation seat is fixedly arranged at the upper end of the support frame, a connecting seat corresponding to the installation seat is fixedly arranged on the lower side surface of the first shell, a rotating shaft is arranged between the installation seat and the connecting seat, one end of the rotating shaft is rotatably arranged on the installation seat, and the other end of the rotating shaft is fixedly arranged on the connecting seat; the connecting seat is provided with at least one arc-shaped groove, the mounting seat is fixedly provided with an L-shaped limiting rod, and a cross rod of the L-shaped limiting rod is arranged in the groove in a sliding manner; and a guide plate is fixedly arranged on the upper side surface of the first shell.

In the offshore power generation device, the middle part of the floating body is provided with a sliding chute with a rectangular cross section; the lower end of the support frame is fixedly provided with a sliding block with a rectangular cross section; the sliding block is arranged in the sliding groove in a sliding manner; and a spring is also arranged in the sliding groove, one end of the spring is propped against the bottom of the sliding groove, and the other end of the spring is propped against the sliding block.

Compared with the prior art, the device has the following advantages:

1. wind power is converted into electric energy through the wind power generation mechanism. In addition, the waves also drive the four buoys to rotate. The buoy drives the first rotating sleeve and the second rotating sleeve to rotate respectively through the first connecting rod, the telescopic mechanism and the second connecting rod. The first rotating sleeve drives an inner gear, and the inner gear drives a first generator to generate electricity through a transmission mechanism.

But the wind force and the waves easily cause the support frame and the floating body to swing and shake. At the moment, the support frame drives the floating cylinder to float up and down in the seawater through the second rotating sleeve and the second connecting rod, so that the buoyancy generated by the floating cylinder is changed. When the support frame swings rightwards, the support frame presses the buoy on the second connecting rod downwards through the second connecting rod on the right side, the drainage quantity of the buoy is increased, and therefore the buoyancy generated by the buoy is increased. The buoyancy generated by the buoy is reacted on the support frame through the second connecting rod, and the horizontal component of the buoyancy is opposite to the swinging direction of the support frame, so that the swinging amplitude of the support frame is reduced; meanwhile, the buoy has the trend of moving upwards under the action of buoyancy, the second connecting rod rotates upwards around a hinge point on the second rotating sleeve, the buoy is gradually far away from the buoy, the coverage area of the device on the water surface is increased, and the stability of the device is further improved. In addition, in the floating process of the buoy, the buoy drives the telescopic piece to extend out of and retract into the cylinder body through the first connecting rod, so that the telescopic mechanism absorbs energy generated by swinging and reduces the swinging amplitude.

Through the process, the device converts wind energy and wave energy into electric energy. Simultaneously, self-balancing of the device is realized through combined action of the buoy and the telescopic mechanism, and stability of the device is improved.

2. The seawater impacts the hydrodynamic impeller and drives the hydrodynamic impeller to rotate, so that the generator on the hydrodynamic impeller generates electricity. The structure converts tidal current energy into electric energy, and further improves the utilization of ocean energy.

3. The float drives the piston rod through the first connecting rod, and the piston rod drives the piston to move in the cylindrical shell, so that the reset spring is shortened and extended. The structure absorbs the energy generated by the swinging of the support frame and converts the energy into elastic potential energy, thereby reducing the swinging amplitude of the support frame.

4. When the piston moves, the volumes of two chambers in the cylindrical shell change, external seawater is sucked into each chamber through the water inlet pipe, and the seawater in the chambers is discharged into the water collecting tank through the first water discharge pipe. Because every header tank all communicates through the connecting pipe each other, the water in the header tank is finally discharged and is spouted hydrodynamic impeller through second drain pipe and drainage check valve, and the rotation of supplementary hydrodynamic impeller improves hydrodynamic impeller rotation efficiency.

5. When the wave is large, the seawater enters the air cavity through the water pipe and discharges the air in the air cavity from the exhaust pipe. The air is discharged from the exhaust pipe and then sprayed to the pneumatic impeller, so that the rotation of the pneumatic impeller is assisted, and the rotation efficiency of the pneumatic impeller is improved.

6. Seawater enters the air cavity, the weight of the support frame is increased, the support frame moves downwards, and the spring is compressed. The height of the support frame is reduced, the swing amplitude of the support frame is reduced, and the influence of wind power on the support frame is reduced; meanwhile, the gravity center of the device is lowered, the weight is increased, and the stability of the device in the environment of strong wind and waves is further improved by the structure.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a sectional view of the structure at a-a in fig. 1.

Fig. 3 is a partially enlarged view B of fig. 1.

Fig. 4 is a partial enlarged view of C in fig. 1.

Fig. 5 is an enlarged view of a portion D in fig. 1.

Fig. 6 is an enlarged view of a portion E of fig. 1.

In the figure, 1, a floating body; 11. a mounting cavity; 12. a chute; 13. a first rotating sleeve; 14. an anchor; 15. a mounting seat; 151. a rotating shaft; 152. an L-shaped limiting rod; 2. a support frame; 21. an air cavity; 22. an air inlet pipe; 221. an air inlet check valve; 23. an exhaust pipe; 231. an exhaust check valve; 24. a water pipe; 25. a slider; 26. a spring; 27. a second rotating sleeve; 3. a first housing; 31. a wind driven impeller; 32. a fan housing; 33. an annular air cavity; 331. an air jet; 332. an air injection passage; 34. an air flow channel; 4. a float bowl; 41. a first link; 42. a second link; 43. a working chamber; 5. a cylindrical housing; 51. a piston; 52. a piston rod; 521. a return spring; 53. a water inlet pipe; 531. a water inlet one-way valve; 54. a first drain pipe; 55. a water collection tank; 56. a connecting pipe; 57. a second drain pipe; 751. a drain check valve; 6. a first generator; 61. a first gear; 62. a second gear; 63. an internal gear; 7. a second housing; 71. a hydrodynamic impeller; 72. an annular water chamber; 721. a water jet; 722. a water spray channel; 73. a baffle; 74. a connecting seat; 741. a groove; 75. fixing a cutter; 76. a movable blade rotating shaft; 77. moving a knife; 78. a water flow channel; 8. a second generator; 81. a deflection disc; 82. a weight block; 9. an accumulator.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Referring to fig. 1 and 2, an offshore power generation device comprises a cylindrical floating body 1, the floating body 1 being fixed by at least two anchors 14; and further comprising:

a cylindrical support frame 2 coaxially arranged on the upper side surface of the floating body 1; the supporting frame 2 is provided with a wind power generation mechanism capable of converting wind energy into electric energy;

the four floating cylinders 4 are uniformly arranged around the periphery of the floating body 1; the floating body 1 is coaxially arranged and is rotationally connected with a first rotating sleeve 13; a telescopic mechanism is arranged between the first rotating sleeve 13 and each buoy 4, the telescopic mechanism is provided with a telescopic piece and a cylinder body, the telescopic piece can extend out of and retract into the cylinder body, the outer end of the telescopic piece is always outside the cylinder body, the outer end of the telescopic piece is movably connected with the buoy 4 through a first connecting rod 41, and the cylinder body is hinged on the first rotating sleeve 13; a second rotating sleeve 27 is rotatably arranged on the support frame 2; a second connecting rod 42 is arranged between the second rotating sleeve 27 and each buoy 4; one end of the second connecting rod 42 is hinged on the second rotating sleeve 27, and the other end is hinged on the buoy 4; an annular internal gear 63 is fixedly arranged on the second rotating sleeve 27, and the internal gear 63 is coaxially arranged with the floating body 1; the floating body 1 is also provided with a first generator 6, and an output shaft of the first generator 6 is meshed and connected with an internal gear 63 through a transmission mechanism.

The floating body 1 and the four floating barrels 4 float on the sea surface, and wind power is converted into electric energy through the wind power generation mechanism. In addition, the waves also drive the four pontoons 4 to rotate. The buoy 4 drives the first rotating sleeve 13 and the second rotating sleeve 27 to rotate respectively through the first connecting rod 41, the telescopic mechanism and the second connecting rod 42. The first rotating sleeve 13 drives the internal gear 63, and the internal gear 63 drives the first generator 6 to generate electricity through a transmission mechanism.

But the wind force and the waves easily cause the support frame 2 and the floating body 1 to swing and shake. At this time, the supporting frame 2 drives the floating pontoon 4 to float up and down in the seawater through the second rotating sleeve 27 and the second connecting rod 42, so as to change the buoyancy generated by the floating pontoon 4. When the support frame 2 swings to the right, the support frame 2 presses the pontoon 4 on the second connecting rod 42 through the second connecting rod 42 on the right side, the displacement of the pontoon 4 is increased, and the buoyancy generated by the pontoon 4 is increased. The buoyancy generated by the buoy 4 is reacted on the support frame 2 through the second connecting rod 42, and the horizontal component of the buoyancy is opposite to the swinging direction of the support frame 2, so that the swinging amplitude of the support frame 2 is reduced; meanwhile, the buoy 4 has a tendency of moving upwards under the action of buoyancy, so that the second connecting rod 42 rotates upwards around a hinge point on the second rotating sleeve 27, the buoy 4 is gradually far away from the floating body 1, the coverage area of the device on the water surface is increased, and the stability of the device is further improved. In addition, in the floating process of the buoy 4, the buoy 4 drives the telescopic member to extend out of and retract into the cylinder body through the first connecting rod 41, so that the telescopic mechanism absorbs energy generated by swinging, and the swinging amplitude is reduced.

Through the process, the device converts wind energy and wave energy into electric energy. Simultaneously, the self-balancing of the device is realized through the combined action of the buoy 4 and the telescopic mechanism, the damage of wind power and waves to the device is reduced, and the stability of the device is improved.

Referring to fig. 1, further, an installation cavity 11 is formed in the floating body 1, an energy accumulator 9 is arranged in the installation cavity 11, and the energy accumulator 9 is electrically connected with the first generator 6 and the wind power generation mechanism respectively; the first generator 6 is arranged in the mounting cavity 11; the axis of the output shaft of the first generator 6 is parallel to the axis of the floating body 1; the transmission mechanism comprises a first gear 61, and the first gear 61 is coaxially and fixedly arranged on the output shaft of the first generator 6; a second gear 62 is arranged between the first gear 61 and the internal gear 63, and the second gear 62 is respectively connected with the first gear 61 and the internal gear 63 in a meshing manner.

The internal gear 63 drives the second gear 62 when rotating, and the second gear 62 drives the first generator 6 to generate electricity through the first gear 61. The electrical energy generated by the first generator 6 and the wind power plant is stored in an accumulator 9.

Referring to fig. 1 and 4, in particular, a cylindrical second shell 7 is arranged on the lower side of the floating body 1, and the axis of the second shell 7 is perpendicular to the axis of the floating body 1; the second housing 7 has a water passage 78 in the axial direction, and a hydrodynamic impeller 71 capable of converting the kinetic energy of the flowing seawater into electric energy is disposed in the second housing 7, and the axis of the pivot of the hydrodynamic impeller 71 is parallel to the axis of the second housing 7.

The seawater impacts the hydrodynamic impeller 71 and drives the hydrodynamic impeller 71 to rotate, thereby generating electricity by the generator on the hydrodynamic impeller 71. The structure converts tidal current energy into electric energy, and further improves the utilization of ocean energy.

Preferably, the generator on the water driven impeller 71 is electrically connected to the accumulator 9.

Which stores the generated electrical energy in an accumulator 9.

Referring to fig. 1 and 4, further, a mounting seat 15 is fixedly arranged on the lower side surface of the floating body 1, a connecting seat 74 corresponding to the mounting seat 15 is fixedly arranged on the upper side surface of the second housing 7, a rotating shaft 151 is arranged between the mounting seat 15 and the connecting seat 74, one end of the rotating shaft 151 is rotatably arranged on the mounting seat 15, and the other end of the rotating shaft 151 is fixedly arranged on the connecting seat 74; at least one arc-shaped groove 741 is formed in the connecting seat 74, an L-shaped limiting rod 152 is fixedly arranged on the mounting seat 15, and a cross rod of the L-shaped limiting rod 152 is slidably arranged in the groove 741; a guide plate 73 is fixedly arranged on the lower side surface of the second shell 7.

The seawater impacts the deflector 73, changing the direction of the deflector 73 as the direction of the seawater flow changes. The guide plate 73 drives the second housing 7, the second housing 7 rotates via the rotating shaft 151, and the L-shaped limiting rod 152 slides in the groove 741. With this configuration, the hydrodynamic impeller 71 is always oriented in a direction perpendicular to the flow direction of the seawater, thereby improving the power generation efficiency of the hydrodynamic impeller 71. The L-shaped limiting rod 152 and the groove 741 are disposed to help limit the rotation angle of the rotating shaft 151.

Referring to fig. 1, 2 and 5, specifically, the cylinder of the telescopic mechanism is a cylindrical shell 5, the telescopic member includes a piston 51 and a piston rod 52, and the piston 51 is movably arranged in the cylindrical shell 5; one end of the piston rod 52 is fixedly arranged on the piston 51, the other end of the piston rod extends out of the cylindrical shell 5, and the end part of the piston rod is hinged with the first connecting rod 41; the piston rod 52 is sleeved with a return spring 521; one end of the return spring 521 is pressed against the inner wall of the cylindrical housing 5, and the other end is pressed against the piston 51.

The buoy 4 drives the piston rod 52 via the first connecting rod 41, and the piston rod 52 drives the piston 51 to move in the cylindrical housing 5, so that the return spring 521 shortens and lengthens. The structure absorbs the energy generated by the swing of the support frame 2 and converts the energy into elastic potential energy, thereby reducing the swing amplitude of the support frame 2.

Referring to fig. 1, 2 and 5, in particular, the interior of the cylindrical housing 5 is divided into two chambers by a piston 51, and a water inlet pipe 53 and a first water outlet pipe 54 are arranged on the inner wall of each chamber; one end of the water inlet pipe 53 extends out of the cylindrical shell 5, and a water inlet check valve 531 is arranged on the water inlet pipe 53; a water collecting tank 55 is arranged below each cylindrical shell 5, and the water collecting tank 55 is connected with the cylindrical shells 5 through two first drainage pipes 54; two adjacent water collecting tanks 55 are communicated through a connecting pipe 56; one of the water collecting tanks 55 is connected to a second water discharging pipe 57, a water discharging check valve 571 is disposed on the second water discharging pipe 57, and water discharged from the second water discharging pipe 57 is sprayed to the hydrodynamic impeller 71.

When the piston 51 moves, the volumes of the two chambers inside the cylindrical housing 5 change, each chamber sucks in the external seawater through the inlet pipe 53, and the seawater in the chamber is discharged to the water collecting tank 55 through the first discharge pipe 54. Since each of the water collecting tanks 55 is communicated with each other through the connection pipe 56, the water in the water collecting tanks 55 is finally discharged through the second water discharge pipe 57 and the discharge check valve 571 and sprayed toward the hydrodynamic impeller 71, thereby assisting the hydrodynamic impeller 71 to rotate and increasing the rotation efficiency of the hydrodynamic impeller 71. This configuration contributes to the improvement in the power generation efficiency of the generator on the hydrodynamic impeller 71.

Referring to fig. 1, 2 and 6, specifically, each buoy 4 has a working cavity 43 therein, a deflection plate 81 is rotatably disposed in the working cavity 43, a weight 82 is fixedly disposed on the deflection plate 81, a second generator 8 is further disposed in the working cavity 43, and an output shaft of the second generator 8 is in pivot transmission connection with the deflection plate 81.

As the buoy 4 floats, the center of gravity of the weight 82 changes, which causes the weight 82 to rotate the deflector plate 81, and the pivot of the deflector plate 81 drives the second generator 8 to generate electricity. The mechanism further utilizes wave energy to generate electricity, and the utilization rate of the wave energy is improved.

Preferably, the second generator 8 is electrically connected with an accumulator 9.

The electric energy generated by the second generator 8 is stored in an accumulator 9.

Referring to fig. 1 and 4, in detail, an annular water cavity 72 is formed on the second housing 7, the annular water cavity 72 is communicated with the second water discharging pipe 57, a plurality of water spraying channels 722 are formed on an inner wall of the annular water cavity 72, the plurality of water spraying channels 722 surround an axis of the second housing 7, each water spraying channel 722 is provided with a water spraying opening 721, and each water spraying opening 721 faces the water driven impeller 71.

The seawater discharged from the second water discharge pipe 57 enters the annular water chamber 72, and the seawater in the annular water chamber 72 is finally guided through the water spray passage 722 and the water spray opening 721 to impact the hydrodynamic impeller 71, thereby assisting the hydrodynamic impeller 71 to rotate.

Referring to fig. 1 and 4, further, two fixed knives 75 are fixedly arranged on the inner wall of the second housing 7, a moving knife rotating shaft 76 is rotatably arranged in the second housing 7, the moving knife rotating shaft 76 is in meshing transmission with the pivot of the water-driven impeller 71, two moving knives 77 are fixedly arranged on the moving knife rotating shaft 76, and each moving knife 77 and the fixed knives 75 form a shearing structure.

When the water-driven impeller 71 rotates, the water-driven impeller 71 drives the movable blade 77 to rotate through the movable blade rotating shaft 76, so that the movable blade 77 and the fixed blade 75 form a shearing structure. The shearing structure effectively shears objects such as marine garbage and fishing nets entering the second shell 7, and avoids the hydrodynamic impeller 71 from being stuck and damaged.

Referring to fig. 1 and 3, in particular, the wind power generation mechanism comprises a cylindrical first housing 3, wherein the axis of the first housing 3 is perpendicular to the axis of the floating body 1; the first housing 3 has an air flow passage 34 in an axial direction, and a wind-driven impeller 31 capable of converting wind energy into electric energy is provided in the first housing 3.

Wind enters the airflow channel 34 and drives the wind driven impeller 31 to rotate, and the wind driven impeller 31 drives the generator on the wind driven impeller 31 to generate power. The structure converts wind energy into electric energy.

Preferably, the generator on the wind rotor 31 is electrically connected to the accumulator 9.

The electrical energy generated by the generator on the wind rotor 31 is stored in the accumulator 9.

Furthermore, a horn-shaped wind cover 32 is coaxially and fixedly arranged on one end edge of the first housing 3.

The wind shield 32 helps to increase the flow rate of air in the airflow channel 34, thereby helping to increase the rotation rate of the wind turbine 31 and increasing the power generation efficiency of the generator on the wind turbine 31.

Referring to fig. 1 and 3, specifically, an air cavity 21 is formed in the support frame 2, a water pipe 24 is connected to the bottom of the air cavity 21, one end of the water pipe 24 extends out of the support frame 2, and the end part of the water pipe is immersed in seawater; the inner wall of the air cavity 21 is also respectively connected with an air inlet pipe 22 and an air outlet pipe 23, and one end of the air inlet pipe 22 extends out of the support frame 2; one end of the exhaust pipe 23 extends out of the support frame 2 and exhaust gas at the end part is sprayed to the wind moving impeller 31; the intake pipe 22 and the exhaust pipe 23 are provided with an intake check valve 221 and an exhaust check valve 231, respectively.

When the waves are large, seawater enters the air cavity 21 through the water pipe 24 and exhausts the air in the air cavity 21 from the exhaust pipe 23. The air is discharged from the exhaust pipe 23 and then is sprayed to the wind-driven impeller 31, so that the wind-driven impeller 31 is assisted to rotate, the rotating efficiency of the wind-driven impeller 31 is improved, and the power generation efficiency of a generator on the wind-driven impeller 31 is improved; after the waves calm down, the seawater in the air cavity 21 is discharged through the water pipe 24, and the outside air enters the air cavity 21 through the air inlet pipe 22 and the air inlet check valve 221.

Referring to fig. 1 and 3, specifically, an annular air cavity 33 is formed in the first housing 3, the annular air cavity 33 is communicated with the exhaust pipe 23, a plurality of air injection channels 322 are formed in the inner wall of the annular air cavity 33, the plurality of air injection channels 322 surround the axis of the first housing 3, each air injection channel 322 has an air injection port 331, and each air injection port 331 faces the wind turbine blade 31.

The air discharged from the air discharge pipe 23 enters the annular air chamber 33, and the air in the annular air chamber 33 is finally guided by the air discharge ports 331 through the air discharge passages 322 to impact the air-driven impeller 31, thereby assisting the air-driven impeller 31 in rotating.

Referring to fig. 1 and 3, further, an installation seat 15 is fixedly arranged at the upper end of the support frame 2, a connection seat 74 corresponding to the installation seat 15 is fixedly arranged on the lower side surface of the first housing 3, a rotation shaft 151 is arranged between the installation seat 15 and the connection seat 74, one end of the rotation shaft 151 is rotatably arranged on the installation seat 15, and the other end of the rotation shaft 151 is fixedly arranged on the connection seat 74; at least one arc-shaped groove 741 is formed in the connecting seat 74, an L-shaped limiting rod 152 is fixedly arranged on the mounting seat 15, and a cross rod of the L-shaped limiting rod 152 is slidably arranged in the groove 741; a guide plate 73 is fixedly arranged on the upper side surface of the first shell 3.

The structure enables the wind driven impeller 31 to be consistent with the wind direction all the time, thereby effectively improving the rotating efficiency of the wind driven impeller 31.

Referring to fig. 1, specifically, a chute 12 with a rectangular cross section is formed in the middle of the floating body 1; a sliding block 25 with a rectangular cross section is fixedly arranged at the lower end of the support frame 2; the sliding block 25 is arranged in the sliding groove 12 in a sliding manner; a spring 26 is further arranged in the sliding chute 12, one end of the spring 26 is pressed against the bottom of the sliding chute 12, and the other end of the spring 26 is pressed against the sliding block 25.

When the wave is large, seawater enters the air cavity 21, the weight of the support frame 2 is increased, the support frame 2 moves downwards, and the spring 26 is compressed. The height of the support frame 2 is reduced, the swing amplitude of the support frame 2 is reduced, and the influence of wind power on the support frame 2 is reduced; meanwhile, the gravity center of the device is lowered, the weight is increased, and the stability of the device in the environment of strong wind and waves is further improved by the structure.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. An offshore power generation device comprising a cylindrical floating body (1), characterized by further comprising:

a cylindrical support frame (2) which is coaxially arranged on the upper side surface of the floating body (1); the supporting frame (2) is provided with a wind power generation mechanism capable of converting wind energy into electric energy;

the plurality of buoys (4) are arranged around the periphery of the floating body (1); the floating body (1) is coaxially arranged and is rotationally connected with a first rotating sleeve (13); a telescopic mechanism is arranged between the first rotating sleeve (13) and each buoy (4), the telescopic mechanism is provided with a telescopic piece and a cylinder body, the telescopic piece can extend out of and retract into the cylinder body, the outer end of the telescopic piece is always outside the cylinder body, the outer end of the telescopic piece is movably connected with the buoy (4) through a first connecting rod (41), and the cylinder body is hinged to the first rotating sleeve (13); a second rotating sleeve (27) is rotatably arranged on the supporting frame (2); a second connecting rod (42) is arranged between the second rotating sleeve (27) and each buoy (4); one end of the second connecting rod (42) is hinged on the second rotating sleeve (27), and the other end is hinged on the buoy (4); an annular internal gear (63) is fixedly arranged on the second rotating sleeve (27), and the internal gear (63) and the floating body (1) are coaxially arranged; the floating body (1) is further provided with a first generator (6), and an output shaft of the first generator (6) is meshed and connected with the internal gear (63) through a transmission mechanism.

2. An offshore power generation device, according to claim 1, characterized in that a cylindrical second hull (7) is provided on the lower side of the floating body (1), the second hull (7) axis being perpendicular to the floating body (1) axis; the second shell (7) is provided with a water flow channel (78) in the axial direction, a water impeller (71) capable of converting the kinetic energy of the flowing seawater into electric energy is arranged in the second shell (7), and the axis of the pivot of the water impeller (71) is parallel to the axis of the second shell (7).

3. An offshore unit, according to claim 2, characterized in that said cylinder of said telescopic mechanism is a cylindrical shell (5), the telescopic member comprising a piston (51) and a piston rod (52), said piston (51) being movably arranged inside said cylindrical shell (5); one end of the piston rod (52) is fixedly arranged on the piston (51), the other end of the piston rod extends out of the cylindrical shell (5), and the end part of the piston rod is hinged with the first connecting rod (41); a return spring (521) is sleeved on the piston rod (52); one end of the return spring (521) is pressed against the inner wall of the cylindrical shell (5), and the other end of the return spring is pressed against the piston (51).

4. An offshore unit, according to claim 3, characterized in that said cylindrical shell (5) is internally divided by a piston (51) into two chambers, each of said chambers being provided on its internal wall with a water inlet pipe (53) and a first water outlet pipe (54); one end of the water inlet pipe (53) extends out of the cylindrical shell (5), and a water inlet check valve (531) is arranged on the water inlet pipe (53); a water collecting tank (55) is arranged below each cylindrical shell (5), and the water collecting tank (55) is connected with the cylindrical shells (5) through two first drainage pipes (54); two adjacent water collecting tanks (55) are communicated through a connecting pipe (56); one of the water collecting tanks (55) is connected with a second water discharging pipe (57), a water discharging check valve (571) is arranged on the second water discharging pipe (57), and water discharged by the second water discharging pipe (57) is sprayed to the hydrodynamic impeller (71).

5. An offshore power generation device according to claim 4, characterized in that each buoy (4) has a working chamber (43), a deflection disc (81) is rotatably arranged in the working chamber (43), a weight (82) is fixedly arranged on the deflection disc (81), a second generator (8) is further arranged in the working chamber (43), and an output shaft of the second generator (8) is in transmission connection with a pivot of the deflection disc (81).

6. Marine generator according to claim 5, characterised in that said second casing (7) is provided with an annular water chamber (72), said annular water chamber (72) being in communication with said second water discharge pipe (57), said annular water chamber (72) being provided on its inner wall with a plurality of water spraying channels (722), said plurality of water spraying channels (722) surrounding the axis of said second casing (7), each water spraying channel (722) having a water jet (721), each water jet (721) facing the water driven impeller (71).

7. An offshore unit, according to any of the claims 1-6, characterized in that said wind power unit comprises a first cylindrical hull (3), the axis of said first hull (3) being perpendicular to the axis of the floating body (1); the wind driven generator is characterized in that the first shell (3) is provided with an airflow channel (34) in the axial direction, and a wind driven impeller (31) capable of converting wind energy into electric energy is arranged in the first shell (3).

8. An offshore power generation device according to claim 7, characterized in that an air cavity (21) is formed in the support frame (2), a water pipe (24) is connected to the bottom of the air cavity (21), one end of the water pipe (24) extends out of the support frame (2) and the end is submerged in seawater; the inner wall of the air cavity (21) is also respectively connected with an air inlet pipe (22) and an air outlet pipe (23), and one end of the air inlet pipe (22) extends out of the support frame (2); one end of the exhaust pipe (23) extends out of the support frame (2) and exhaust gas at the end part is sprayed to the wind moving impeller (31); and the air inlet pipe (22) and the air outlet pipe (23) are respectively provided with an air inlet one-way valve (221) and an air outlet one-way valve (231).

9. An offshore power generation device according to claim 8, characterized in that the first casing (3) is provided with an annular air cavity (33), the annular air cavity (33) is communicated with the exhaust pipe (23), the inner wall of the annular air cavity (33) is provided with a plurality of air injection channels (322), the plurality of air injection channels (322) surround the axis of the first casing (3), each air injection channel (322) is provided with an air injection port (331), and each air injection port (331) faces the wind turbine impeller (31).

10. An offshore power generation unit according to claim 9, characterized in that the floating body (1) is provided with a chute (12) in the middle with a rectangular cross section; a sliding block (25) with a rectangular cross section is fixedly arranged at the lower end of the support frame (2); the sliding block (25) is arranged in the sliding groove (12) in a sliding manner; a spring (26) is further arranged in the sliding groove (12), one end of the spring (26) is pressed against the bottom of the sliding groove (12), and the other end of the spring (26) is pressed against the sliding block (25).