Tidal current energy power generation device and working method thereof

Abstract

The present invention relates to the technical field of tidal energy power generation, and discloses a tidal energy power generation device and a working method thereof, comprising: a power generation unit arranged between a first fixed pile and a second fixed pile, a plurality of energy-enhancing mechanisms can be arranged and respectively arranged on the first fixed pile and the second fixed pile, and the energy-enhancing mechanism can be in a trumpet shape for increasing the tidal flow velocity passing through the first fixed pile and the second fixed pile, thereby lowering the power generation threshold of the power generation unit, and at the same time, the middle power generation unit can be fixed by the first fixed pile and the second fixed pile on both sides, so as to avoid the pile foundation size being too large to affect the tidal flow velocity, thereby affecting the power generation efficiency of the power generation unit, and at the same time avoid the generation of eddy current areas, thereby causing the power generation unit, the first pile foundation and the second pile foundation to vibrate, threatening the safe operation of the tidal energy power generation device. The technical effect of improving power generation efficiency and making the overall unit safer and more solid is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of tidal current energy power generation, and in particular to a tidal current energy power generation device and a working method thereof. Background Art

[0002] Tidal energy is a renewable energy source, which mainly refers to the kinetic energy of seawater flow, and the energy brought by the periodic rise and fall of seawater on the earth's surface caused by the gravitational effects of the moon, the sun, etc. Its performance in the ocean is usually more stable and regular. Tidal energy is mainly concentrated in submarine waterways, straits and areas with regular seawater flow where the water flow is fast. The tidal velocity in these areas is relatively large. Generally, tidal energy with a maximum flow velocity of more than 2m / s has utilization value and is suitable for the development and utilization of tidal energy. The main way to utilize tidal energy is to generate electricity. As a clean and renewable energy source, tidal energy generation has the advantages of reducing carbon dioxide emissions and increasing the proportion of renewable energy. Tidal energy generation technology mainly includes two parts: unit type and foundation fixed type. At present, the three-blade horizontal axis tidal energy generation device is more common. The rotating axis of this type of device is parallel to the water surface, and its swept area is larger. The power generation power of the horizontal axis unit is higher than that of the vertical axis unit. Among the fixed types of tidal energy units, the pile-column foundation was developed the earliest and the technology is relatively mature. Generally, a single rock-embedded pile foundation is implanted on the seabed, and the tidal energy unit is installed on the pile foundation.

[0003] In the related technology, tidal currents with lower flow rates cannot generate electricity, resulting in a shorter power generation time for the unit. The power generation requirements can only be met for a short time, and the number of available hours is not high. At the same time, the pile foundation is large in size, which affects the tidal flow rate through the unit, further resulting in low power generation efficiency. In addition, after the tidal current passes through the unit and the pile foundation, it is easy to generate an eddy current zone, causing vibration of the unit and affecting the safe operation of the unit. Summary of the invention

[0004] The purpose of the present invention is to provide a tidal energy power generation device and a working method thereof, so as to solve the technical problems in the prior art of low power generation efficiency and influence on the movement safety of the unit.

[0005] In order to solve the above technical problems, the present invention provides a tidal energy power generation device, comprising: an energy boosting mechanism, a first fixed pile, a second fixed pile and a power generation unit;

[0006] The first fixed pile and the second fixed pile are arranged at intervals, the energy boosting mechanism is rotatably connected to the first fixed pile and the second fixed pile respectively, and the width of the energy boosting mechanism is arranged to decrease along the flow direction of the tidal current;

[0007] The power generation unit is disposed between the first fixing pile and the second fixing pile, and the power generation unit is connected to the first fixing pile and the second fixing pile respectively.

[0008] In an optional embodiment, the energy enhancement mechanism includes a first energy enhancement plate, a second energy enhancement plate, a third energy enhancement plate and a fourth energy enhancement plate;

[0009] The first energy enhancement plate and the second energy enhancement plate are respectively hinged to the first fixing pile, and the third energy enhancement plate and the fourth energy enhancement plate are respectively hinged to the second fixing pile.

[0010] In an optional embodiment, it also includes a fixed crossbeam and a driving member;

[0011] The fixed crossbeam is arranged at one side of the energy boosting mechanism, and the fixed crossbeam is respectively connected to the first fixed pile and the second fixed pile. The driving member is arranged on the fixed crossbeam and connected to the power generation unit, and the driving member drives the power generation unit to move towards or away from the fixed crossbeam.

[0012] In an optional embodiment, it further includes a moving crossbeam;

[0013] The movable crossbeam is arranged on a side of the power generation unit away from the fixed crossbeam, the movable crossbeam is transmission-connected with the driving member, and the movable crossbeam is slidingly connected with the first fixed pile and the second fixed pile respectively.

[0014] In an optional embodiment, grooves are provided on both sides of the movable cross beam, guide rails are provided on the first fixed pile and the second fixed pile respectively, and the grooves are slidably connected to the guide rails.

[0015] In an optional embodiment, it also includes a screw and a sleeve;

[0016] The sleeve is connected to the movable crossbeam, the screw rod passes through the sleeve and is threadedly connected, the screw rod is rotationally connected to the fixed crossbeam, and one end of the screw rod is connected to the driving member.

[0017] In an optional embodiment, the power generation unit includes a first fan blade, a second fan blade and a generator motor, the generator motor is connected to the sleeve, the first fan blade and the second fan blade are arranged at intervals along the direction of the tide, and the first fan blade and the second fan blade are respectively connected to both ends of the generator motor.

[0018] In an optional embodiment, it further includes a driving rod;

[0019] The two ends of the driving rod are respectively hinged to the fixed crossbeam and the energy boosting mechanism.

[0020] In an optional embodiment, it further includes a measuring unit;

[0021] The measuring unit is arranged on a side of the fixed crossbeam close to the power generation unit, and the measuring unit is respectively connected with the driving rod and the power generation unit by electrical signals.

[0022] The present invention also provides a working method based on the tidal energy power generation device, comprising the following steps:

[0023] measuring the tidal current direction between the first fixed pile and the second fixed pile by a measuring unit;

[0024] The driving rod is used to adjust the angles of the first energy boosting plate, the second energy boosting plate, the third energy boosting plate and the fourth energy boosting plate respectively along the tidal direction, so that the distance between the energy boosting mechanisms on both sides of the tidal current that does not contact the power generation unit decreases gradually, and the energy boosting mechanisms on both sides of the tidal current after passing the power generation unit are parallel;

[0025] After the drive rod is adjusted, the measuring unit measures the tidal flow rate and selects the first or second blade to start rotating according to the tidal direction;

[0026] After the tidal flow velocity reaches the power generation standard, the generator motor starts to generate electricity;

[0027] After the generator motor starts to generate electricity, the driving member drives the screw to rotate, and the rotating screw drives the sleeve, the generator unit and the moving crossbeam to move relative to the first fixed pile through thread matching;

[0028] When the power generation unit is in motion, observe the power generation efficiency of the generator motor;

[0029] Select the position where the generator motor has the maximum power generation efficiency and fix it.

[0030] The present invention provides a tidal energy power generation device, comprising: a power generation unit arranged between a first fixed pile and a second fixed pile, a plurality of energy-boosting mechanisms can be arranged and respectively arranged on the first fixed pile and the second fixed pile, the energy-boosting mechanism can be in the shape of a trumpet to increase the tidal flow velocity passing through the first fixed pile and the second fixed pile, thereby lowering the power generation threshold of the power generation unit, and at the same time, the middle power generation unit can be fixed by the first fixed pile and the second fixed pile on both sides, so as to avoid the pile foundation behind the power generation unit being too large, thereby affecting the tidal flow velocity, thereby affecting the power generation efficiency, and at the same time avoiding the generation of eddy current areas, thereby causing the power generation unit, the first pile foundation and the second pile foundation to vibrate, threatening the safe operation of the tidal energy power generation device. The technical effect of improving power generation efficiency and making the overall unit safer and more solid is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the tidal energy power generation device mentioned in an embodiment of the present invention;

[0032] Figure 2is a top view of the tidal energy power generation device mentioned in an embodiment of the present invention;

[0033] Figure 3 It is a structural schematic diagram of a second fixing pile and an energy boosting mechanism of a tidal energy power generation device mentioned in an embodiment of the present invention;

[0034] Figure 4 It is a structural schematic diagram of a driving member, a sleeve, a screw, a moving crossbeam, a fixed crossbeam and a power generation unit of a tidal energy power generation device mentioned in an embodiment of the present invention.

[0035] In the figure, 1, first fixed pile; 2, second fixed pile; 3, first energy enhancing plate; 4, second energy enhancing plate; 5, third energy enhancing plate; 6, fourth energy enhancing plate; 7, fixed crossbeam; 8, driving member; 9, moving crossbeam; 10, screw; 11, sleeve; 12, groove; 13, guide rail; 14, alarm; 15, first fan blade; 16, second fan blade; 17, generator motor; 18, driving rod; 19, measuring unit. DETAILED DESCRIPTION

[0036] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the related art, the inventors found that since a minimum value is set for the tidal flow velocity when the unit is generating electricity, a tidal flow with too low a velocity cannot be started for power generation, and a tidal flow with a higher velocity can only be maintained for a short time, resulting in a short power generation time and low power generation efficiency. At the same time, since the diameter of the pile foundation on one side of the unit is generally large, when the tidal flow passes through the unit and the pile foundation, the pile foundation affects the tidal flow velocity passing through the unit, further resulting in low power generation efficiency. In addition, after the tidal flow passes through the unit and the pile foundation, an eddy current zone is easily generated, causing vibration of the unit and the pile foundation, affecting the safe operation of the unit.

[0039] In view of this, if Figures 1 to 4As shown, some embodiments of the present invention provide a tidal energy power generation device, comprising: an energy boosting mechanism, a first fixed pile 1, a second fixed pile 2 and a power generation unit; the first fixed pile 1 and the second fixed pile 2 are arranged at intervals, the energy boosting mechanism is rotatably connected to the first fixed pile 1 and the second fixed pile 2 respectively, and the width of the energy boosting mechanism is arranged to decrease along the flow direction of the tidal current; the power generation unit is arranged between the first fixed pile 1 and the second fixed pile 2, and the power generation unit is connected to the first fixed pile 1 and the second fixed pile 2 respectively.

[0040] In some embodiments, the energy-boosting mechanism may be plate-shaped, and a plurality of energy-boosting mechanisms may be provided, so that at least one energy-boosting mechanism is provided on each of the first fixed pile 1 and the second fixed pile 2, and the plurality of energy-boosting mechanisms can rotate relative to the first fixed pile 1 and the second fixed pile 2 connected to each other, so as to adjust the angle between the energy-boosting mechanisms relatively provided on the first fixed pile 1 and the second fixed pile 2, and the distance between the relative energy-boosting mechanisms on one side of the tidal current flowing toward the power generation unit can be arranged in decreasing order along the flow direction of the tidal current, so that the energy-boosting mechanism can be trumpet-shaped, thereby increasing the flow rate of the tidal current flowing through the power generation unit, and thereby increasing the tidal current flow rate. , improve the power generation efficiency. Further, the power generation unit can be fixed between the first fixed pile 1 and the second fixed pile 2 by a connecting rod to avoid the power generation unit being set on one side of the pile foundation, so that the thicker pile foundation blocks the flow rate of the tidal current and reduces the power generation efficiency of the power generation unit. At the same time, the tidal current will generate an eddy current zone after passing through the pile foundation and the unit, causing the pile foundation and the unit to vibrate. The first fixed pile 1 and the second fixed pile 2 arranged at intervals avoid blocking the tidal current and effectively reduce the eddy current zone, thereby avoiding the vibration of the power generation unit, the first fixed pile 1 and the second fixed pile 2, extending the service life, reducing failures, and reducing safety hazards.

[0041] The first fixed pile 1 and the second fixed pile 2 are parallel to each other and arranged at intervals. The first fixed pile 1 and the second fixed pile 2 can be arranged at intervals of 15m to 20m. For example, the distance between the first fixed pile 1 and the second fixed pile 2 can be set to 16m, 17m, 18m, etc. The first fixed pile 1 and the second fixed pile 2 are arranged along the altitude direction respectively. The first fixed pile 1 and the second fixed pile 2 have the same shape and structure. Taking the first fixed pile 1 as an example, the first fixed pile 1 includes a foundation pile fixed on the seabed or riverbed, and also includes a support pile connected to the foundation pile. The foundation pile and the support pile can be integrally formed and are both made of metal or cement. The support pile and the foundation pile can be cylindrical. The diameter of the support pile is smaller than that of the foundation pile. The energy-boosting mechanism is rotatably connected to the support pile, thereby further reducing the influence of the support pile on the flow velocity of the tidal energy, and at the same time, the power generation unit is better fixed by the thicker foundation pile.

[0042] Some embodiments of the present invention provide a tidal energy power generation device, including: a power generation unit arranged between a first fixed pile 1 and a second fixed pile 2, a plurality of energy-boosting mechanisms can be provided and respectively arranged on the first fixed pile 1 and the second fixed pile 2, the energy-boosting mechanism can be in the shape of a trumpet to increase the tidal flow velocity passing through the first fixed pile 1 and the second fixed pile 2, thereby lowering the power generation threshold of the power generation unit, and at the same time, the middle power generation unit can be fixed by the first fixed pile 1 and the second fixed pile 2 on both sides, so as to avoid the pile foundation behind the power generation unit from being too large, thereby affecting the tidal flow velocity and thus affecting the power generation efficiency, and at the same time, avoid the generation of eddy current areas, thereby causing the power generation unit, the first pile foundation and the second pile foundation to vibrate, and reduce the strength of the tidal energy power generation device. The technical effect of improving power generation efficiency and making the overall unit safer and more solid is achieved.

[0043] In an optional embodiment, the energy enhancing mechanism includes a first energy enhancing plate 3, a second energy enhancing plate 4, a third energy enhancing plate 5 and a fourth energy enhancing plate 6; the first energy enhancing plate 3 and the second energy enhancing plate 4 are respectively hinged to the first fixed pile 1, and the third energy enhancing plate 5 and the fourth energy enhancing plate 6 are respectively hinged to the second fixed pile 2.

[0044] In the above embodiment, the first energy enhancing plate 3, the second energy enhancing plate 4, the third energy enhancing plate 5 and the fourth energy enhancing plate 6 have the same shape, and are all in the shape of a plate with a rectangular cross section. The first energy enhancing plate 3 and the second energy enhancing plate 4 are respectively fixed on the supporting piles of the first fixing pile 1, and the third energy enhancing plate 5 and the fourth energy enhancing plate 6 are respectively fixed on the supporting piles of the second fixing pile 2. The first energy enhancing plate 3, the second energy enhancing plate 4, the third energy enhancing plate 5 and the fourth energy enhancing plate 6 are respectively arranged parallel to the length direction of the first fixing pile 1 and the second fixing pile 2, wherein, at the first fixing pile 1 Two grooves are arranged at intervals on the support pile, and the two grooves are arranged at intervals along the length direction of the support pile of the first fixed pile 1, and each groove surrounds the circumference of the support pile. Two rings are respectively arranged on one side of the first energy enhancing plate 3 and the second energy enhancing plate 4, and the two rings are arranged at intervals and the interval is equal to the interval between the two grooves. When the first energy enhancing plate 3 and the second energy enhancing plate 4 are connected to the support pile, the two rings on the first energy enhancing plate 3 can be connected to the two grooves on the support column respectively, so that the first energy enhancing plate 3 is rotatably connected to the support column, and as Figure 3 In the direction shown, the two circular rings of the second energy enhancing plate 4 can be respectively arranged above the two circular rings of the first energy enhancing plate 3. At the same time, in order to satisfy that two circular rings can be accommodated in each groove, the width of each groove is not less than the width of the two circular rings.

[0045] Optionally, the first energy booster plate 3, the second energy booster plate 4, the third energy booster plate 5 and the fourth energy booster plate 6 can all be made of metal, and the first energy booster plate 3, the second energy booster plate 4, the third energy booster plate 5 and the fourth energy booster plate 6 can all be provided with zinc blocks for rust prevention by using a sacrificial anode method to prevent rust.

[0046] Among them, the connection method between the ring and the groove may include: the ring is formed by connecting two semicircular products, one semicircular product is connected to the energy enhancement mechanism and inserted into the groove, and the other semicircular product is connected through the outer groove to form a closed ring and is mounted on the groove.

[0047] In an optional embodiment, it also includes a fixed crossbeam 7 and a driving member 8; the fixed crossbeam 7 is arranged on one side of the energy boosting mechanism, and the fixed crossbeam 7 is respectively connected to the first fixed pile 1 and the second fixed pile 2, and the driving member 8 is arranged on the fixed crossbeam 7 and connected to the power generation unit, and the driving member 8 drives the power generation unit to move towards or away from the fixed crossbeam 7.

[0048] In the above embodiment, if Figure 1 As shown, the fixed crossbeam 7 is arranged on the side of the supporting pile away from the foundation pile, and the two sides of the fixed crossbeam 7 are respectively connected to the first fixed pile 1 and the second fixed pile 2, and the fixed crossbeam 7 can be arranged perpendicular to the length direction of the first fixed pile 1, and the fixed crossbeam 7 is arranged at one end of the energy enhancement mechanism. A driving member 8 is arranged on the side of the fixed crossbeam 7 away from the foundation pile. The driving member 8 is connected to the fixed crossbeam 7 and is transmission-connected to the power generation unit. The driving member 8 can drive the power generation unit to move closer to or away from the fixed crossbeam 7, so that the power generation unit can make adaptive adjustments in tides of different heights, thereby meeting the power generation needs of the power generation unit at different tide heights and improving the power generation efficiency.

[0049] Optionally, a warning device 14 is provided on the side of the fixed crossbeam 7 away from the foundation pile. The warning device 14 can be connected to the driving member 8, and can also be connected to the end of the energy boosting mechanism away from the seabed or riverbed. The warning device 14 is used to indicate the position of the energy boosting mechanism and the height of the driving member 8, and warn passing ships to avoid it.

[0050] Optionally, the driving member 8 may be a motor or a lift or other component that can drive the power generation unit to move.

[0051] In an optional embodiment, a movable crossbeam 9 is further included; the movable crossbeam 9 is arranged on a side of the power generation unit away from the fixed crossbeam 7, the movable crossbeam 9 is transmission-connected to the driving member 8, and the movable crossbeam 9 is slidingly connected to the first fixed pile 1 and the second fixed pile 2 respectively.

[0052] In the above embodiment, the movable crossbeam 9 is arranged between the first fixed pile 1 and the second fixed pile 2, the movable crossbeam 9 is arranged between the fixed crossbeam 7 and the seabed or riverbed, the movable crossbeam 9 is connected to the driving member 8 through a transmission connection, and the movable crossbeam 9 is connected to the power generation unit, so that the driving member 8 can drive the power generation unit to reciprocate along the length direction parallel to the first fixed pile 1 through the movable crossbeam 9, wherein, when the movable crossbeam 9 drives the power generation unit to move closer to or away from the fixed crossbeam 7, since the left and right ends of the movable crossbeam 9 are respectively slidably connected to the first fixed pile 1 and the second fixed pile 2, the movable crossbeam 9 is always parallel to the fixed crossbeam 7 during the movement, thereby preventing the movable crossbeam 9 from causing the power generation unit to flip during the movement, resulting in the power generation unit being unable to generate electricity.

[0053] In an optional embodiment, grooves 12 are provided on both sides of the movable cross beam 9 , guide rails 13 are provided on the first fixed pile 1 and the second fixed pile 2 , respectively, and the grooves 12 are slidably connected to the guide rails 13 .

[0054] In the above embodiment, rectangular grooves 12 are provided on both sides of the movable cross beam 9 and penetrate along the thickness direction of the movable cross beam 9. The two grooves 12 are respectively provided with an opening facing the first fixed pile 1 and the second fixed pile 2. Correspondingly, two guide rails 13 are provided on the side where the first fixed pile 1 and the second fixed pile 2 are close to each other. The two guide rails 13 are arranged on the same plane and correspond to the two grooves 12 respectively, so that each groove 12 can be stuck in a guide rail 13, so as to prevent the movable cross beam 9 from rotating during the movement of the movable cross beam 9, resulting in the power generation angle of the power generation unit not being the optimal angle, and at the same time, it can ensure that the movable cross beam 9 moves more smoothly. Furthermore, a limit block is provided at one end of each guide rail 13 close to the riverbed or seabed, and the limit block is convexly arranged on the guide rail 13. The limit block is used to abut the movable cross beam 9 to prevent the movable cross beam 9 from separating on the guide rail 13 when it moves close to the riverbed or seabed.

[0055] Optionally, the groove 12 can be in the shape of an arc, and the diameter of the arc of the groove 12 is consistent with the outer diameter of the supporting pile outside the first fixed pile 1. The movable crossbeam 9 can be slidably connected to the outer diameter of the supporting pile of the first fixed pile 1 and the outer diameter of the supporting column of the second fixed pile 2 through the arc grooves 12 on both sides.

[0056] In an optional embodiment, it also includes a screw rod 10 and a sleeve 11; the sleeve 11 is connected to the movable crossbeam 9, the screw rod 10 passes through the sleeve 11 and is threadedly connected, the screw rod 10 is rotationally connected to the fixed crossbeam 7, and one end of the screw rod 10 is connected to the driving member 8.

[0057] In the above embodiment, the length direction of the screw 10 can be set parallel to the first fixed pile 1, and the distance between the screw 10 and the first fixed pile 1 and the second fixed pile 2 can be set equally. One end of the screw 10 passes through the fixed beam 7 and is rotatably connected to the fixed beam 7 through a bearing. The end of the screw 10 that passes through the fixed beam 7 is connected to the driving member 8, so that the driving member 8 directly drives the screw 10 to rotate, and the screw 10 rotates relative to the fixed beam 7 through the bearing. Further, the side of the screw 10 away from the driving member 8 is threadedly connected to the sleeve 11, and the sleeve 11 is fixedly connected to the fixed beam 7, and the sleeve 11 is hollow inside and passes through the moving beam 9, and the power generation unit is arranged on the sleeve 11 and connected to the sleeve 11. The rotation of the screw 10 is driven by the driving member 8, and the sleeve 11 is threadedly connected to the screw 10 to drive the power generation unit and the moving beam 9 to reciprocate through the sleeve 11.

[0058] In an optional embodiment, the power generation unit includes a first fan blade 15, a second fan blade 16 and a generator motor 17, the generator motor 17 is connected to the sleeve 11, the first fan blade 15 and the second fan blade 16 are arranged at intervals along the direction of the tide, and the first fan blade 15 and the second fan blade 16 are respectively connected to the two ends of the generator motor 17.

[0059] In this embodiment, the generator motor 17 can be rectangular, the connecting line of the first blade 15 and the second blade 16 can be arranged perpendicular to the plane where the first fixed pile 1 and the second fixed pile 2 are located, the axes of the first blade 15 and the second blade 16 can coincide, the sizes of the first blade 15 and the second blade 16 can be consistent, and both can adopt a constant propeller and non-yaw setting. The first blade 15 and the second blade 16 can both adopt a three-blade horizontal axis setting. The diameter of each impeller can be 20m, the starting flow rate can be 0.6m / s, the rated maximum flow rate is 2m / s, and the rated power generation range is 600kW, so that when facing tides in different directions, the first blade 15 or the second blade 16 can be adaptively selected for power generation. The first blade 15 and the second blade 16 are respectively facing the direction of rising tide and the direction of falling tide, so as to realize two-way power generation of rising and falling tides.

[0060] Optionally, the diameter of the first blade 15 and the second blade 16 can be close to the length of the first energy enhancing plate 3, or the length of the first energy enhancing plate 3 is greater than the length of the first blade 15, so that when the height of the generator motor 17 is adjusted, the energy enhancing mechanism can still have a converging effect on the tidal current, thereby improving the power generation efficiency.

[0061] Optionally, two generator motors 17 can be provided, that is, the first fan blade 15 is connected to one generator motor 17, and the second fan blade 16 is connected to the other generator motor 17. The front and rear power generation units are independent of each other and have independent gear boxes and generator motors 17 to reduce structural failures caused by complex structures. When power generation is needed, only one power generation unit is operated. For example, at high tide, the power generation unit facing the direction of high tide operates to generate electricity, and the other remains stationary. At low tide, the power generation unit facing the direction of low tide operates to generate electricity, and the other remains stationary.

[0062] Optionally, the power generation unit may include a variable-paddle non-yaw generator motor 17 and fan blades, and when the tidal direction changes, the purpose of bidirectional power generation at high and low tides is achieved by changing the angle of attack of the fan blades.

[0063] In an optional embodiment, a driving rod 18 is further included; both ends of the driving rod 18 are respectively hinged to the fixed crossbeam 7 and the energy-increasing mechanism.

[0064] In this embodiment, the driving rod 18 can be a hydraulic oil rod, and four driving rods 18 can be provided, that is, the first energy enhancing plate 3, the second energy enhancing plate 4, the third energy enhancing plate 5 and the fourth energy enhancing plate 6 can be connected to the fixed crossbeam 7 through a driving rod 18 respectively. When it is necessary to drive the first energy enhancing plate 3, the second energy enhancing plate 4, the third energy enhancing plate 5 and the fourth energy enhancing plate 6 to rotate, the first energy enhancing plate 3, the second energy enhancing plate 4, the third energy enhancing plate 5 and the fourth energy enhancing plate 6 are driven to rotate through the driving rods 18 connected to each other, so as to complete the adjustment of the angles of the first energy enhancing plate 3, the second energy enhancing plate 4, the third energy enhancing plate 5 and the fourth energy enhancing plate 6.

[0065] Optionally, the driving rod 18 may adjust the rotation angle of the first energy enhancing plate 3 , the second energy enhancing plate 4 , the third energy enhancing plate 5 and the fourth energy enhancing plate 6 to a range of 0 to 90°.

[0066] In an optional embodiment, a measuring unit 19 is further included; the measuring unit 19 is arranged on a side of the fixed cross beam 7 close to the power generation unit, and the measuring unit 19 is respectively connected to the driving rod 18 and the power generation unit by electrical signals.

[0067] In this embodiment, the measuring unit 19 is arranged on a side of the fixed crossbeam 7 close to the power generation unit and is fixedly connected to the fixed crossbeam 7. A plurality of measuring units 19 may be provided, and the plurality of measuring units 19 are arranged at intervals along the length direction of the fixed crossbeam 7. The measuring unit 19 may be used to measure information such as the flow velocity, flow direction, and water depth of the tidal current. The measuring unit 19 transmits the measurement signal to each driving rod 18 and driving member 8. Each driving rod 18 and driving member 8 moves according to the signal transmitted by the measuring unit 19 to adjust the water depth of the power generation unit and the rotation angle of the first energy enhancing plate 3, the second energy enhancing plate 4, the third energy enhancing plate 5, and the fourth energy enhancing plate 6, thereby improving the power generation efficiency.

[0068] Optionally, in sea areas with a water depth of 30 meters, the power generation unit is intended to make full use of the tidal energy resources in the tidal flow velocity range of 0.4m / s to 0.6m / s under the condition of a starting flow velocity of 0.6m / s, so that the power generation unit can also be started and generate electricity within this tidal flow velocity range.

[0069] Optionally, a battery for storing electricity is also provided on the fixed crossbeam 7, and the battery is respectively connected to the generator motor 17, the measuring unit 19, the driving member 8 and the driving rod 18 by electrical signals. The generator motor 17 can charge the battery, and the battery can supply power to the driving member 8, the driving rod 18 and the measuring unit 19.

[0070] Some embodiments of the present invention also provide a working method of a tidal energy power generation device based on the present invention, comprising the following steps: measuring the tidal current direction between the first fixed pile 1 and the second fixed pile 2 by means of a measuring unit 19, and transmitting the tidal current direction information to a driving rod 18; after the driving rod 18 receives the tidal current information, a plurality of driving rods 18 respectively adjust the angles of the first energy enhancing plate 3, the second energy enhancing plate 4, the third energy enhancing plate 5 and the fourth energy enhancing plate 6, so that the distance between the energy enhancing mechanisms on both sides of the tidal current that does not contact the power generation unit side decreases along the tidal current direction, and the energy enhancing mechanisms on both sides of the tidal current after the power generation unit are arranged in parallel with each other, so as to avoid the tidal current energy after the power generation unit from generating an eddy current zone; the driving rod 18 After the adjustment is completed, the measuring unit 19 measures the tidal flow velocity, and selects the first blade 15 or the second blade 16 according to the tidal direction to start rotating and generating electricity, wherein the blade that preferentially contacts the tidal side is selected for generating electricity; after the tidal flow velocity reaches the power generation standard, the generator motor 17 starts to generate electricity; after the generator motor 17 starts to generate electricity, the screw 10 is driven to rotate by the driving member 8, and the rotating screw 10 drives the sleeve 11, the generator unit and the movable crossbeam 9 to move relative to the first fixed pile 1 through threaded cooperation; when the generator unit moves, the power generation efficiency of the generator motor 17 is observed in real time, and the position of the maximum power generation efficiency of the generator motor 17 is selected and fixed to maximize the working efficiency of the generator motor 17.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tidal current energy power generation device, characterized in that: include: An energy boosting mechanism, a first fixed pile (1), a second fixed pile (2), and a power generation unit; The first fixing pile (1) and the second fixing pile (2) are arranged at intervals, and the energy boosting mechanism is rotatably connected to the first fixing pile (1) and the second fixing pile (2) respectively; The power generation unit is arranged between the first fixed pile (1) and the second fixed pile (2), and the power generation unit is connected to the first fixed pile (1) and the second fixed pile (2) respectively; The energy enhancement mechanism comprises a first energy enhancement plate (3), a second energy enhancement plate (4), a third energy enhancement plate (5) and a fourth energy enhancement plate (6); The first energy enhancement plate (3) and the second energy enhancement plate (4) are respectively hinged to the first fixing pile (1), and the third energy enhancement plate (5) and the fourth energy enhancement plate (6) are respectively hinged to the second fixing pile (2); It also includes a fixed crossbeam (7) and a driving member (8); The fixed crossbeam (7) is arranged on one side of the energy boosting mechanism, the fixed crossbeam (7) is respectively connected to the first fixed pile (1) and the second fixed pile (2), the driving member (8) is arranged on the fixed crossbeam (7) and is connected to the power generation unit, and the driving member (8) drives the power generation unit to move in a direction close to or away from the fixed crossbeam (7); Also includes a moving crossbeam (9); The movable crossbeam (9) is arranged on a side of the power generation unit away from the fixed crossbeam (7), the movable crossbeam (9) is transmission-connected to the driving member (8), and the movable crossbeam (9) is slidingly connected to the first fixed pile (1) and the second fixed pile (2) respectively; It also includes a screw (10) and a sleeve (11); The sleeve (11) is connected to the movable crossbeam (9), the screw rod (10) passes through the sleeve (11) and is threadedly connected, the screw rod (10) is rotationally connected to the fixed crossbeam (7), and one end of the screw rod (10) is connected to the driving member (8); The power generation unit comprises a first fan blade (15), a second fan blade (16) and a generator motor (17); the generator motor (17) is connected to the sleeve (11); the first fan blade (15) and the second fan blade (16) are arranged at intervals along the direction of the tidal current; the first fan blade (15) and the second fan blade (16) are respectively connected to two ends of the generator motor (17); Also includes a drive rod (18); Both ends of the driving rod (18) are respectively hinged to the fixed crossbeam (7) and the energy boosting mechanism; Also included is a measuring unit (19); The measuring unit (19) is arranged on a side of the fixed crossbeam (7) close to the power generation unit, and the measuring unit (19) is respectively connected to the driving rod (18) and the power generation unit by electrical signals; The working method of the tidal energy power generation device comprises the following steps: measuring the tidal current direction between the first fixed pile and the second fixed pile by a measuring unit; The driving rod is used to adjust the angles of the first energy boosting plate, the second energy boosting plate, the third energy boosting plate and the fourth energy boosting plate respectively along the tidal direction, so that the distance between the energy boosting mechanisms on both sides of the tidal current that does not contact the power generation unit decreases gradually, and the energy boosting mechanisms on both sides of the tidal current after passing the power generation unit are parallel; After the drive rod is adjusted, the measuring unit measures the tidal flow velocity and selects the first blade or the second blade to start rotating according to the tidal direction; After the tidal flow velocity reaches the power generation standard, the generator motor starts to generate electricity; After the generator motor starts to generate electricity, the driving member drives the screw to rotate, and the rotating screw drives the sleeve, the generator unit and the moving crossbeam to move relative to the first fixed pile through thread matching; When the power generation unit is in motion, observe the power generation efficiency of the generator motor; Select the position where the generator motor has the maximum power generation efficiency and fix it.

2. The tidal current energy power generation device according to claim 1, characterized in that: Grooves (12) are provided on both sides of the movable crossbeam (9), guide rails (13) are provided on the first fixed pile (1) and the second fixed pile (2), respectively, and the grooves (12) are slidably connected to the guide rails (13).

Images