CN117386549A - Wave energy power generation device and wind-power and water-power combined generator - Google Patents

Abstract

The application relates to a wave energy power generation device and a wind power and water power combined type generator, and relates to the field of natural energy power generation. The power generation cabin and the floating body are coaxially sleeved outside the main shaft and slide along the axial direction of the main shaft, the total buoyancy of the floating body and the power generation cabin is equal to the total weight of the floating body and the power generation cabin, the floating body, the power generation cabin and the main shaft are lifted relatively when waves come, the power transmission assembly converts kinetic energy generated by lifting into rotational kinetic energy, and then the rotational kinetic energy is converted into electric energy through the power generation unit, so that power generation is realized.

Description

Wave energy power generation device and wind-power and water-power combined generator

Technical Field

The invention relates to the field of natural energy power generation, in particular to a wave energy power generation device and a wind-power and water-power combined generator.

Background

Solar energy, water energy, wind energy, geothermal energy and the like are all common natural energy which can be used for generating electricity at present, and the corresponding types of generators convert the energy into electric energy for human production and life. Wave energy power generation is a kind of water energy power generation, and utilizes kinetic energy contained in ocean surface waves to drive a power generator to operate so as to realize power generation.

In the related technology, the basic principle of the wave energy related power generation equipment is to perform underwater operation, fix a main shaft on the seabed and apply pretension to the main shaft; the main shaft is provided with a liftable power generation cabin, the power generation cabin is lifted continuously by utilizing the height change caused by waves, the power generation cabin moves relatively to the main shaft in the lifting process, and the first gear rack and other structures are utilized to drive a power generator in the power generation cabin to operate, so that power generation is realized.

With respect to the related art described above, since the main shaft needs to be installed on the seabed and the power generation tanks need to contact waves at the sea surface, this is greatly limited by the ocean depth, and in some sea areas where the ocean depth is high, the main shaft length causes high overall cost and is thus not suitable for areas where the ocean depth is high.

Disclosure of Invention

In order to improve applicability, the application provides a wave energy power generation device and a wind-water power combined type generator.

In a first aspect, the present application provides a wave energy power generation device, which adopts the following technical scheme:

a wave energy power plant comprising:

a main shaft;

the power generation cabin is arranged outside the main shaft, a power transmission assembly is connected between the power generation cabin and the main shaft, and when the power generation cabin works, waves drive the power transmission assembly to slide along the axial direction of the main shaft;

the floating body is arranged outside the power generation cabin and used for enabling the power generation cabin to float on the sea surface, and the total buoyancy of the floating body and the power generation cabin is equal to or smaller than the total weight of the floating body and the power generation cabin;

the connecting part is connected between the power generation cabin and the floating body and used for limiting the floating body and the power generation cabin to synchronously lift;

the first power generation unit is connected between the main shafts and the power generation cabin and is used for converting the sliding kinetic energy of the power transmission assembly into electric energy.

By adopting the technical scheme, the wave is temporary, the power transmission assembly and the main shaft are lifted relatively, kinetic energy generated by lifting of the power transmission assembly is converted into electric energy through the first power generation unit to realize power generation, and as gravity of the power generation cabin is counteracted by means of buoyancy of the main shaft and buoyancy of the floating body, the main shaft only needs to be counteracted by the buoyancy of the main shaft and gravity, so that the main shaft is integrally floated on the sea surface, the main shaft is not required to be contacted with the sea bed, and therefore, the sea depth limit is avoided, and the applicability is improved.

Optionally, the float body is capable of swinging about a nacelle axis and is connected to the nacelle.

By adopting the technical scheme, when the floating body can swing around the axis of the power generation cabin, on the basis that the floating body can drive the power generation cabin to vertically move, the floating body can more comprehensively absorb wave energy, so that the main shaft hardly fluctuates or swings left and right along with waves.

Optionally, the floating body is annular, and connecting portion includes inner ring and two pivots, and inner ring and the coaxial setting of floating body, pivot all set up along the radial of inner ring, and two pivots mutually perpendicular, and one pivot rotates to be connected between inner ring and power generation cabin, and another pivot rotates to be connected with between inner ring and the floating body.

By adopting the technical scheme, the inner ring and the floating body can integrally rotate around the pivot between the inner ring and the power generation cabin, so that wave energy in the direction is captured, and meanwhile, the main shaft is not easy to excessively incline due to wave impact; the floating body can rotate around the pivot between the floating body and the inner ring in the same way, so that the floating body has wave energy capturing and inclination preventing capabilities in different directions, and the stability of the main shaft is higher.

Optionally, the floating body includes:

the floating columns are fixed on the outer side of the power generation cabin in a circumferential array, and loading chambers are formed in the floating columns;

the connecting pipes are respectively fixed between the adjacent floating columns and communicated with the adjacent loading chambers;

and a ballast valve provided to the connection pipe for changing an amount of water entering the ballast chamber.

Through adopting above-mentioned technical scheme, along with the fluctuation of rivers, can promote the vertical motion of a plurality of floating columns to drive the vertical motion of power generation cabin, realize converting wave energy into electric energy, in addition, because ballast room and ballast valve's setting, through the water yield that changes ballast room, can offset the float of horizontal plane, offset swing motion, in order to improve power generation facility's stability.

Optionally, a wils turbine is provided at the connection tube.

By adopting the technical scheme, when the water level in each ballast chamber rises or falls along with the movement of waves, the water level floats to push air from one ballast chamber to the other ballast chamber through the connecting pipe, and the Welst turbine rotates through the movement of the air between the chambers, so that the power generation efficiency is further improved.

Optionally, the power transmission assembly includes:

the first linear transmission part is parallel to the main shaft and synchronously ascends and descends along with the main shaft, and the middle position of the first linear transmission part is penetrated in the power generation cabin;

the first circumferential transmission part is positioned in the power generation cabin and synchronously ascends and descends along with the power generation cabin, the first circumferential transmission part is meshed with the first linear transmission part, and when the first linear transmission part moves relative to the first circumferential transmission part, the first circumferential transmission part rotates.

Through adopting above-mentioned technical scheme, when wave arouses that the power generation cabin goes up and down, take place to go up and down relatively with sharp driving medium one, circumference driving medium one is rotatory under the meshing effect of sharp driving medium one, and then realizes the conversion of power generation cabin lift kinetic energy to rotational energy.

Optionally, the power transmission assembly includes:

the linear transmission part II is parallel to the main shaft, is positioned in the power generation cabin and synchronously rises and falls along with the generator;

and the second circumferential transmission part is positioned in the power generation cabin, synchronously ascends and descends along with the main shaft, is meshed with the second linear transmission part, and rotates when the linear transmission part moves relative to the second circumferential transmission part.

Through adopting above-mentioned technical scheme, when the wave arouses that the power generation cabin goes up and down, drive sharp driving medium two and go up and down, circumference driving medium two takes place the rotation under the meshing effect with sharp driving medium two, and then realizes the conversion of power generation cabin lift kinetic energy to rotational energy.

Optionally, the power generation cabin further comprises a plurality of anchor buoys, wherein the anchor buoys are distributed at equal intervals along the circumferential direction of the power generation cabin, and anchor chains are connected between the anchor buoys and the floating body.

Through adopting above-mentioned technical scheme, adopt the setting of a plurality of anchor buoys, can fix a position and sign power generation facility in the water to improve power generation facility's stability.

Optionally, the power generation cabin comprises a stabilizer, wherein the stabilizer is coaxial with the main shaft, is annular and extends towards the lower end of the main shaft.

Through adopting above-mentioned technical scheme, extend to stabilizer in the aquatic when increasing the whole drainage buoyancy of power generation cabin, can make the holistic focus of power generation cabin shift down, and then strengthen holistic stability.

In a second aspect, the present application provides a wind-hydraulic combined generator, which adopts the following technical scheme:

the wind power and water power combined generator comprises the wave power generation device and further comprises:

the wind energy capturing unit (8) is positioned above the power generation cabin (2), and the buoyancy of the main shaft (1) positioned at the underwater part is equal to the total weight force of the wind energy capturing unit (8) and the main shaft (1);

the connecting component (11) is connected between the main shaft (1) and the power transmission component (4) and is used for realizing the relative rotation of the main shaft (1) and the power generation cabin (2);

and the second power generation unit (6) is connected between the wind energy capturing unit (8) and the power generation cabin (2) and is used for converting wind energy into electric energy.

By adopting the technical scheme, the wind energy capturing unit is arranged on the water part of the main shaft, the wind energy above the ocean is captured by the wind energy capturing unit, the second power generation unit converts the wind energy into electric energy to realize power generation, and meanwhile, the power generation unit is matched with wave energy which is realized by relatively lifting the power generation cabin and the main shaft to realize wind power and water power combined power generation.

Optionally, the wind energy capturing unit is a vertical axis generator set, and the main shaft rotates synchronously with the wind energy capturing unit.

Through adopting above-mentioned technical scheme, the focus of vertical axis wind energy capture unit is located the main shaft, and factors such as centrifugal force that rotatory produced are difficult for causing the influence to the stability of main shaft, and then make whole more stable.

Optionally, the wind energy capturing unit is a horizontal shaft generator set;

the peripheral wall of the main shaft is fixed with a plurality of anchoring lines in a circumferential array;

and one end of the anchoring line, which is away from the main shaft, is fixed with an anchor pile for being buried into the seabed.

By adopting the technical scheme, the movement range of the main shaft can be limited by adjusting the tension of the anchoring line, and when wind power, waves, ocean currents and other factors in the ocean environment exert forces, the catenary anchoring system can bear the forces and enable the main shaft to keep a relatively stable position.

Optionally, the horizontal axis generator set includes:

the mast is coaxially fixed at the upper end of the main shaft;

the fairing is rotationally arranged on one side of the mast around the mast;

the cabin is rotationally connected to the upper end of the mast;

the wind wheel is rotatably arranged in the engine room and used for capturing wind energy.

Through adopting above-mentioned technical scheme, the radome fairing rotatable installation that sets up makes the radome fairing can adapt to the wind direction on the mast, reaches the turbulent flow that reduces the mast and follows.

Optionally, the second power generation unit includes:

the transmission shaft is rotationally connected to the engine room, and the axis of the wind wheel is fixed on the transmission shaft;

the driven shaft coaxially rotates in the mast;

the reversing transmission mechanism is connected between the transmission shaft and the driven shaft;

and the third generator is arranged in the engine room or the main shaft and is used for converting the rotation mechanical energy of the driven shaft into electric energy.

Through adopting above-mentioned technical scheme, the wind wheel drives the transmission shaft and rotates, and through switching-over drive mechanism switching-over, drive driven shaft synchronous rotation, the rethread third generator is with driven shaft pivoted mechanical energy conversion electric energy, has realized the conversion of wind energy and electric energy, and moves the power generation cabin of horizontal axle wind energy capture unit to power generation cabin or main shaft part by the upper end of mast, great reduction the load weight of mast, improved the stability of whole power generation facility operation.

Optionally, the ocean current energy capturing device further comprises an ocean current energy capturing unit coaxially surrounding the outer side of the main shaft and pushed by ocean current energy, the ocean current energy capturing unit can rotate relative to the main shaft, the second ocean current energy capturing unit of the power generation unit is connected between the ocean current energy capturing unit and the power generation cabin and used for converting ocean current energy into electric energy.

Through adopting above-mentioned technical scheme, ocean current energy capture unit cooperates wave energy power generation facility to catch ocean current energy when catching wave energy, and then improves the efficiency of energy capture to sea water flow, and then improves generating efficiency.

Optionally, the device further comprises an automatic clamping mechanism arranged in the power generation cabin and used for clamping the main shaft when the rotation speed of the main shaft exceeds a threshold value.

By adopting the technical scheme, in the running process of the wind energy capturing unit, when the wind speed exceeds the maximum rated wind speed and the rotating speed of the main shaft exceeds the threshold value, the automatic clamping mechanism can clamp the main shaft tightly, and as the rotating direction of the power generation cabin and the main shaft is opposite, the rotating speed of the main shaft can be gradually reduced after the automatic clamping mechanism clamps the main shaft, the seawater resistance is utilized to play a role of braking, and thus the power generation device is protected.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the floating body, the power generation cabin and the main shaft are lifted relatively when waves come, the power transmission assembly converts kinetic energy generated by lifting into rotational kinetic energy, and then the rotational kinetic energy is converted into electric energy through the power generation unit I to realize power generation, and the main shaft only needs to offset the self buoyancy and the gravity by the gravity of the power generation cabin and the buoyancy of the floating body, so that the main shaft floats on the sea surface integrally, the main shaft is not required to be in contact with the seabed, the limitation of ocean depth is avoided, and the applicability is improved;

2. the inner ring and the floating body can integrally rotate around the pivot between the inner ring and the power generation cabin, so that wave energy in the direction is captured, and meanwhile, the main shaft is not easy to excessively incline due to wave impact; the floating body can rotate around the pivot between the floating body and the inner ring in the same way, so that the floating body has wave energy capturing and inclination preventing capabilities in different directions, and the stability of the main shaft is higher;

3. the wind energy capturing unit captures wind energy above the ocean to drive the main shaft to rotate, the power generation unit II converts the rotation kinetic energy of the main shaft into electric energy to realize power generation, and meanwhile, the power generation unit II is matched with wave energy power generation realized by the relative lifting of the power generation cabin and the main shaft to realize wind power and hydraulic power combined power generation.

Drawings

Fig. 1 is a schematic view of the wave energy power unit of the present application.

Fig. 2 is a schematic cross-sectional view showing one of the power transmission assemblies.

Fig. 3 is a schematic cross-sectional view highlighting another power transmission assembly.

Fig. 4 is a schematic structural diagram of a wind-hydraulic combined generator using a vertical shaft generator set.

Fig. 5 is a schematic view of the internal structure of a power generation cabin of the wind-water power combined generator.

Fig. 6 is a schematic structural diagram of a wind-hydraulic combined generator using a horizontal shaft generator set.

Fig. 7 is a schematic diagram showing the relative positions of the mast and fairing.

Fig. 8 is a schematic diagram showing the position of the driven shaft.

Fig. 9 is a schematic view highlighting the mooring line and the position of the anchor pile.

FIG. 10 is a schematic diagram of a vertical axis generator set for use with ocean current energy power plants.

FIG. 11 is a schematic diagram of a power plant employing a horizontal axis generator set in combination with ocean current energy.

Fig. 12 is a schematic view showing a structure of a floating body using a floating column.

Reference numerals illustrate: 1. a main shaft; 11. a connection assembly; 111. a slip ring; 112. a roller; 12. a mooring line; 121. an anchor pile; 2. a power generation cabin; 21. a stabilizer; 3. a floating body; 31. a connection part; 311. an inner ring; 312. an outer ring; 313. a pivot; 32. a floating column; 321. a beam frame; 33. a connecting pipe; 331. a ballast valve; 332. a Welst turbine; 4. a power transmission assembly; 41. a first linear transmission part; 42. a first circumferential transmission member; 43. a second linear transmission part; 44. a second circumferential transmission member; 5. a first power generation unit; 6. a second power generation unit; 61. a second gear; 62. a second generator; 63. a third gear; 7. an anchor buoy; 71. an anchor chain; 8. a wind energy capturing unit; 81. a first blade; 82. a connecting rod; 83. a wind wheel; 84. a nacelle; 841. a transmission shaft; 842. a reversing transmission mechanism; 85. a mast; 851. a driven shaft; 86. a fairing; 861. a fixing ring; 87. a central shaft; 9. an ocean current energy capturing unit; 91. a second blade; 92. a connecting ring; 93. and (3) a bracket.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

In one aspect, embodiments of the present application disclose a wave energy power generation device.

Example 1:

referring to fig. 1, a wave power generation device comprises a main shaft 1 and a power generation cabin 2, wherein the main shaft 1 is long-column-shaped and vertically arranged on the sea surface, the lower end part of the main shaft 1 is submerged in water, and the upper end part of the main shaft extends out of the water surface; the whole power generation cabin 2 is of a cylindrical structure, is coaxially sleeved outside the part of the main shaft 1, which is positioned at the horizontal plane, a power transmission assembly 4 is connected between the power generation cabin 2 and the main shaft 1, and when waves occur, the waves drive the power generation cabin 2 and the power transmission assembly 4 to slide up and down outside the main shaft 1.

Referring to fig. 2, a first power generation unit 5 is installed in the power generation cabin 2, and converts kinetic energy of the up-and-down movement of the power generation cabin 2 into electric energy to generate power.

Referring to fig. 1, when wave energy is singly utilized to generate electricity, buoyancy generated by the water drainage volume of the underwater part of the main shaft 1 is equal to the gravity of the whole main shaft 1; the power generation cabin 2 is sleeved with the floating body 3 due to the large dead weight, the floating body 3 is annular in the embodiment, the connecting part 31 is connected between the power generation cabin 2 and the floating body 3, the floating body 3 is matched with the buoyancy of the power generation cabin 2 to offset the total gravity of the floating body 3 and the power generation cabin 2, and then the gravity applied to the main shaft 1 by the power generation cabin 2 is cancelled. By the arrangement, on one hand, the power generation cabin 2 can be smoothly and efficiently driven by waves to slide relative to the main shaft 1, and the power generation effect is guaranteed; on the other hand, the joint of the main shaft 1 and the power generation cabin 2 has smaller stress and longer service life.

Referring to fig. 2, the floating body 3 may be made of a material or a structure having a small dead weight and a strong buoyancy, and in this embodiment, an air bag made of rubber is preferable.

Referring to fig. 1, the connecting portion 31 in this embodiment includes an inner ring 311 and two pivots 313, and the two pivots 313 are disposed along a radial direction of the inner ring 311. The inner ring 311 is coaxially arranged between the power generation cabin 2 and the floating body 3, and one pivot 313 is connected between the inner ring 311 and the power generation cabin 2. Preferably, the pivot 313 comprises two sections of transverse shafts which are respectively arranged on opposite sides of the lower part of the peripheral wall of the power generation cabin 2 and are coaxially arranged, and the power generation cabin 2 and/or the inner ring 311 are rotatably connected with the end parts of the transverse shafts, so that on one hand, when bearing waves in the direction perpendicular to the circumferential direction of the pivot 313, the inner ring 311 can swing along the axis of the pivot 313, thereby weakening the shaking caused by the waves and improving the stability; on the other hand, wave energy in the direction can be absorbed, and power generation is realized.

Referring to fig. 2, if the floating body 3 is made of a flexible material or structure such as a rubber bladder in the present embodiment, the connecting portion 31 further includes an outer ring 312, the outer ring 312 is coaxially fixed to the floating body 3, and the other pivot 313 is connected between the inner ring 311 and the outer ring 312, and the inner ring 311 is connected to the floating body 3 by means of the outer ring 312. Such an arrangement may improve stability and service life. Wherein the pivot 313 also comprises two sections of transverse shafts respectively positioned on opposite sides of the peripheral wall of the inner ring 311, and the outer ring 312 and/or the inner ring 311 are/is rotatably connected with the end parts of the transverse shafts so as to realize that the outer ring 312 and the floating body 3 can swing along the axis of the pivot 313. Further, the axes of the two pivots 313 are perpendicular to each other, so that under the cooperation of the two pivots 313, the floating body 3 can swing 360 degrees on the water surface.

Referring to fig. 2, the connection between the power generation cabin 2 and the floating body 3 is realized by using the connection portion 31, on one hand, the power generation cabin 2 can be driven to move vertically by absorbing waves, on the other hand, the floating body 3 can swing 360 degrees, wave energy in all directions can be received comprehensively, up-and-down fluctuation or left-and-right swing of the main shaft 1 caused by waves in all directions is greatly weakened, and the overall stability is further increased.

Alternatively, if the floating body 3 is made of a stable material or structure, such as hollow hard polyurethane, the pivot 313 between the inner ring 311 and the floating body 3 may be directly connected to the floating body 3.

In alternative embodiments, each pivot 313 includes a transverse axis, which also achieves the effect of a multi-angle oscillation of the floating body 3.

In addition, in other alternative embodiments, the floating body 3 may use a bolt or the like as the connection portion 31 to achieve a relatively fixed connection between the power generation compartment 2 and the floating body 3.

Referring to fig. 2, when the wave-induced power generation cabin 2 is lifted, kinetic energy generated by relative sliding of the power generation cabin 2 and the main shaft 1 is converted into rotational kinetic energy by the power transmission assembly 4, the power generation cabin 2 is internally provided with the power generation unit 1, the power generation unit 5 comprises a first power generator, and the first power generator converts the rotational kinetic energy converted by the power transmission assembly 4 into electric energy to realize power generation.

Referring to fig. 2, specifically, the power transmission assembly 4 includes a first linear driving member 41 and a first circumferential driving member 42, in this embodiment, the first linear driving member 41 adopts a rack, the first circumferential driving member 42 and the first linear driving member 41 correspondingly adopt a first gear, the first linear driving member 41 is parallel to the main shaft 1, and when power generation is performed by independently using wave energy, both the upper and lower ends of the first linear driving member 41 are fixed with the main shaft 1 and lift synchronously with the main shaft 1; the first circumferential transmission member 42 is located in the power generation cabin 2 and meshed with the first linear transmission member 41, and when waves drive the power generation cabin 2 to lift, the first circumferential transmission member 42 moves along the first linear transmission member 41 to rotate, so that lifting kinetic energy of the power generation cabin 2 is converted into rotational kinetic energy.

The input shaft of the first generator is coaxially connected with the first circumferential transmission member 42, and further, the rotational kinetic energy of the first circumferential transmission member 42 is utilized to convert the rotational kinetic energy into electric energy.

Referring to fig. 3, in another embodiment, the power transmission assembly 4 may be adjusted, where the power transmission assembly 4 includes a second linear driving member 43 and a second circumferential driving member 44, the second linear driving member 43 and the second circumferential driving member 44 may also be engaged with the first rack and pinion, the second linear driving member 43 is fixed in the power generation cabin 2, the second circumferential driving member 44 may be rotatably connected with the main shaft 1, and the rotation of the second circumferential driving member 44 may also be achieved during the lifting process of the power generation cabin 2, so as to drive the first power generation unit 5 to achieve electric energy conversion.

Wherein, alternatively, the first linear driving member 41/the second linear driving member 43 can adopt a chain or similar structure, and the corresponding sprocket wheel or the like of the first circumferential driving member 42/the second circumferential driving member 44 can also realize the conversion from the lifting kinetic energy to the rotating kinetic energy of the power generation cabin 2.

Referring to fig. 1, further, an anchor buoy 7 may be added to facilitate positioning of the whole in the body of water and to improve stability of the whole.

Specifically, a plurality of anchor buoys 7 are circumferentially arranged in the power generation compartment 2, and three anchor buoys 7 are used in this embodiment, but the number is not limited to three, and four, five, etc. may be used. Each anchor buoy 7 is connected to an anchor chain 71, in this embodiment, one end of the anchor chain 71 close to the nacelle 2 is connected to the outer wall of the floating body 3. Thus, by arranging the plurality of anchor buoys 7, the power generation device can be positioned and identified in the water body, and the stability of the power generation device can be improved.

In other alternative embodiments, the anchor chain 71 may be attached to the outer wall of the nacelle 2, which may also achieve the effect of improving overall stability.

Referring to fig. 2, in order to enhance the buoyancy and stability of the power generation cabin 2, the power generation cabin 2 may be additionally provided with a stabilizer 21, the stabilizer 21 is located at the lower end portion of the power generation cabin 2, the stabilizer 21 is cylindrical and coaxially arranged with the main shaft 1, the stabilizer 21 stretches into the water, and then the stability of the power generation cabin 2 is improved in cooperation with the floating body 3. And in other embodiments the floating body 3 may be connected to the stabilizer 21.

The implementation principle of the wave energy power generation device in the embodiment of the application is as follows: when wave energy is independently utilized to generate electricity, buoyancy generated by the water drainage volume of the underwater part of the main shaft 1 is equal to the gravity of the whole main shaft 1; the floating body 3 is matched with the buoyancy of the power generation cabin 2 to offset the total gravity of the floating body 3 and the power generation cabin 2, so that the gravity of the power generation cabin 2 applied to the main shaft 1 is cancelled. By the arrangement, on one hand, the power generation cabin 2 can be smoothly and efficiently driven by waves to slide relative to the main shaft 1, and the power generation effect is guaranteed; on the other hand, the joint of the main shaft 1 and the power generation cabin 2 has smaller stress and longer service life. In addition, when the floating body 3 receives waves in a direction perpendicular to the circumferential direction of the pivot 313, the inner ring 311 can swing along the axis of the pivot 313, so that the shaking caused by the waves is reduced, and the stability is improved; on the other hand, wave energy in the direction can be absorbed, and power generation is realized.

The second aspect of the embodiment of the application also discloses a wind-force and water-force combined type generator. Which is formed mainly on the basis of the wave energy power generation device in the above-described embodiments by further combining the wind energy power generation devices. Described further below:

referring to fig. 4, a wind-power-water combined generator is to be noted, and the same parts as the wave power generator in the embodiment are not repeated. And further comprises a wind energy capturing unit 8 mounted on the upper end of the main shaft 1. Therefore, wind energy is captured through the wind energy capturing unit 8, wave energy is captured by matching with the wave energy generating device, and electric energy conversion is realized by matching with the power generation cabin 2, so that the hybrid power generation of wind energy and wave energy can be completed. And, the buoyancy of the underwater part of the main shaft 1 is equal to the total weight of the main shaft 1 and the wind energy capturing unit 8.

Since the wind energy capturing unit 8 can be further specifically divided into a vertical axis structure and a horizontal axis structure, the following specifically describes the structure of the power generating apparatus when two wind energy capturing units 8 are used, respectively, in combination with the specific embodiments:

example 2:

referring to fig. 4, the present embodiment specifically describes a power generation apparatus when the wind energy capturing unit 8 adopts a vertical axis structure.

The wind energy capturing unit 8 comprises a central shaft 87 and a plurality of first blades 81 which are arranged outside the central shaft 87 in a circumferential array, wherein the plurality of first blades 81 can be vertically arranged or kept to be arranged at a preset angle with the central shaft 87, and a connecting rod 82 is fixed between the plurality of blades and the central shaft 87 and used for ensuring the connection between the plurality of first blades 81 and the central shaft 87. The lower end of the central shaft 87 is coaxially fixed on the main shaft 1, and the main shaft 1 and the central shaft 87 can be integrally formed in the reworking process, and the first blade 81 can drive the main shaft 1 to rotate by capturing wind energy in the working state, so that the wind energy is converted into mechanical energy.

In order to resist the damage to the power generation device caused by the strong storm weather, the form of the first blade 81 or the connecting rod 82 may be changed in other embodiments of the present application, so that the first blade 81 may be folded or shrink towards the main shaft 1, so that when encountering the strong storm weather, the wind resistance may be reduced, and the structural stability of the wind energy capturing unit 8 may be improved, so as to improve the typhoon resistance of the whole power generation device.

Referring to fig. 1, in other embodiments of the present application, the installation of the central shaft 87 may be omitted, and the upper and lower ends of the plurality of first blades 81 may be fixed to each other by directly connecting the rods 82, and the upper end of the main shaft 1 may be fixed to the connecting rod 82 located at the lower side of the first blades 81. With this structure, the main shaft 1 can be driven to rotate by the rotation of the plurality of first blades 81, so that the wind energy can be converted into mechanical energy.

Referring to fig. 5, a second power generation unit 6 for converting wind energy into electric energy is provided in the power generation compartment 2. Specifically, the second power generation unit 6 includes a second gear 61, a second power generator 62, and a third gear 63, where the second gear 61 is coaxially fixed to the main shaft 1, the second power generator 62 is vertically fixed in the power generation compartment 2, the third gear 63 is fixed to a driving shaft of the second power generator 62, and the third gear 63 is meshed with the second gear 61.

With this arrangement, when wind energy is captured by the wind energy capturing unit 8 to drive the spindle 1 to rotate relative to the power generation cabin 2, the second gear 61 rotates synchronously with the spindle 1, so that the third gear 63 can be driven to rotate, and power generation of the second power generator 62 is realized.

Further, the combination of the second generator 62 and the third gear 63 may further be provided with multiple groups around the circumference of the second gear 61 for simultaneously matching with the second gear 61, so as to further improve the power generation efficiency, and balance the gravity of different parts of the power generation cabin 2 to improve the stability.

Referring to fig. 5, in order to ensure that the main shaft 1 rotates and the power generation cabin 2 lifts and lowers to convert and utilize wave energy, the embodiment further includes a connection assembly 11, the connection assembly 11 adopts a slip ring 111 coaxially fixed on the main shaft 1, the first linear driving member 41 or the second circumferential driving member 44 can be movably connected with the slip ring 111 by using a roller 112, and the kinetic energy transmission effect of the power transmission assembly 4 is ensured while the main shaft 1 rotates.

Example 3:

referring to fig. 5 and 6, this embodiment specifically describes differences from embodiment 1 in the configuration of the power generation device when the wind energy capturing unit 8 adopts a horizontal axis structure.

When the wind energy capturing unit 8 is configured as a horizontal axis structure, it comprises: the mast 85, the nacelle 84 provided on the mast 85, and the wind wheel 83 provided at the front end of the nacelle 84, wherein the mast 85 is vertically provided and coaxially fixed to the upper end of the main shaft 1, and in other embodiments of the present application, the mast 85 and the main shaft 1 may be integrally formed. The nacelle 84 is horizontally disposed and rotatably connected to an upper end of the mast 85, and a second generator 62 (not shown) is fixed in the nacelle 84, and an output shaft of the second generator 62 extends out of one end of the nacelle 84. The wind wheel 83 is formed of a plurality of blades in a circumferential array, and the axial center position of the wind wheel 83 is fixed to one end of the second generator 62 extending out of the nacelle 84. In operation, the wind wheel 83 captures external wind force, drives the wind wheel 83 to rotate, and then the second generator 62 converts mechanical energy generated by the rotation of the wind wheel 83 into electrical energy.

To facilitate rotation of the nacelle 84 such that the wind rotor 83 is always facing the wind, a yaw device may be provided between the nacelle 84 and the mast 85 for controlling rotation of the nacelle 84.

In order to improve the typhoon resistance of the power generation device, the blades of the wind wheel 83 may be configured in a foldable manner, that is, when the wind wheel 83 encounters strong typhoon weather, the blades of the wind wheel 83 may be folded to adjust the angle of the blades, reduce wind resistance, and improve structural stability of the wind turbine to improve typhoon resistance.

Referring to fig. 7, in order to reduce turbulence caused by the mast 85, a fairing 86 may be provided on the mast 85, the fairing 86 being provided on one side of the mast 85 in the axial direction of the mast 85, the fairing 86 being formed of two side plates extending in the tangential direction of the mast 85 toward the side of the mast 85 to meet each other and sealing plates fixed to the upper and lower ends of the side plates, so that the fairing 86 has a triangular cross section. The fairing 86 is provided with a plurality of fixed rings 861 along the length direction thereof towards one side of the mast 85, and each fixed ring 861 is sleeved on the mast 85 and rotates with the mast 85, so that the fairing 86 can rotate around the mast 85 to reduce friction between the fairing 86 and the mast 85.

Further, the fixing ring 861 may be replaced with a ring bearing. In this manner, the fairing 86 is mounted on an annular bearing or retaining ring 861 to allow the fairing 86 to accommodate wind direction to reduce turbulence trailing the mast 85.

Referring to fig. 8, further, to improve stability and avoid overall rotation, a catenary anchoring system may be added, that is, a plurality of anchoring lines 12 are fixed in a circumferential array around the underwater portion of the main shaft 1, and three anchoring lines 12 are used in this embodiment, but not limited to three anchoring lines, but four anchoring lines, five anchoring lines, and the like may also be used. Anchor piles 121 are fixed to the end of the mooring line 12, and the anchor piles 121 are buried in the seabed.

In this way, the range of motion of the main shaft 1 is limited by adjusting the tension of the mooring line 12. The catenary mooring system is capable of withstanding forces when these forces are exerted by wind, wave and ocean currents in the marine environment and maintains the main shaft 1 in a relatively stable position.

Example 4: the present embodiment provides another wind energy capturing unit 8 of a horizontal axis structure, which differs from embodiment 3 described above in that:

referring to fig. 5 and 8, a transmission shaft 841 disposed along the length direction of the nacelle 84 is rotatably connected to the nacelle 84, one end of the transmission shaft 841 extends out of the nacelle 84, the axial center position of the wind wheel 83 is fixed at one end of the transmission shaft 841 extending out of the nacelle 84, a vertically disposed driven shaft 851 is rotatably connected to the mast 85, the upper end of the driven shaft 851 extends into the nacelle 84, a reversing transmission mechanism 842, such as a bevel gear reversing mechanism, a worm gear reversing mechanism, etc., is further disposed in the nacelle 84, that is, the driven shaft 851 can be driven to rotate synchronously through rotation of the transmission shaft 841, and a speed change function can be added on the basis of the reversing transmission mechanism 842, for example, a reversing gearbox can be directly adopted to connect between the driven shaft 851 and the transmission shaft 841.

Meanwhile, a third power generation unit (a third power generator (not shown in the figure)) is further disposed in the power generation cabin 2, the third power generator is fixed in the power generation cabin 2, the lower end of the driven shaft 851 extends to the position of the power generation cabin 2, and a reversing mechanism formed by gear transmission is also connected between the driving shaft of the third power generator and the lower end of the driven shaft 851, and is used for transmitting the rotation of the driven shaft 851 to the driving shaft of the third power generator, so that power generation is realized through the third power generator.

Referring to fig. 5 and 7, in other embodiments of the present application, the second power generation unit 6 may be disposed in the main shaft 1, that is, in the lower portion of the mast 85, and then the main shaft 1 and the drive shaft of the third power generator may be connected by the reversing mechanism, so that the operation of the third power generator may be similarly achieved.

By adopting the scheme, the power generation cabin 2 is moved to the power generation cabin 2 or the main shaft 1 part from the upper end of the mast 85, so that the load weight of the mast 85 is greatly reduced, and the running stability of the whole power generation device is improved.

Referring to fig. 10, to enhance the capture utilization of the kinetic energy of sea water, further ocean current energy capture units 9 may also be combined. Described further below:

it should be noted that the same parts related to the wind energy and wave energy generating device are not repeated. In addition, the ocean current energy capturing unit 9 is arranged at the underwater part of the main shaft 1, the ocean current energy capturing unit 9 captures ocean current energy, and the power generation cabin 2 is matched to realize the conversion of electric energy, so that the hybrid power generation of wave energy, wind energy and ocean current energy can be completed.

In addition, the ocean current energy capturing unit 9 may be adjusted to offset the weight of the power generation compartment 2 by buoyancy generated by the drainage volume of the ocean current energy capturing unit 9. At this time, the buoyancy of the main shaft 1 only needs to be used for counteracting the gravity of the wind energy capturing unit 8 on the water surface, so that the stress on the rotating part of the main shaft 1 and the power generation cabin 2 in the vertical direction can be reduced to be almost zero, the abrasion is reduced, and the cost is greatly reduced.

Referring to fig. 10, the ocean current energy capturing unit 9 includes a plurality of second blades 91, the plurality of second blades 91 are vertically arranged on the periphery of the main shaft 1 in a circumferential array, a connection structure is provided between the plurality of second blades 91 for maintaining the relative positions of the second blades 91, in this embodiment, the connection structure employs a plurality of connection rings 92, the plurality of connection rings 92 are arranged along the axial direction of the main shaft 1 and are coaxially arranged with the main shaft 1, and each second blade 91 is fixed to the connection ring 92. The upper ends of the plurality of second blades 91 are connected with a bracket 93, and the bracket 93 is fixed to the power generation compartment 2.

Referring to fig. 10, the power generation cabin 2 is rotatably connected to the main shaft 1 through a bearing, so that the power generation cabin 2 can be driven to rotate through capturing ocean current energy by the second blade 91, and conversion of the ocean current energy into mechanical energy is realized. The second power generation unit 6 in the power generation cabin 2 can convert the power of the relative motion of the main shaft 1 and the power generation cabin 2 into electric energy.

In addition, when the wind speed exceeds the maximum rated wind speed of the vertical axis wind capture device, the main shaft 1 may rotate too fast to cause runaway and cause a galloping phenomenon, so a brake device may be further arranged in the power generation cabin 2 to avoid the galloping phenomenon.

The braking device may adopt an automatic clamping mechanism (not shown in the figure), that is, when the wind speed exceeds the safety range, the main shaft 1 rotates too fast to exceed the threshold value, the automatic clamping mechanism may gradually clamp the main shaft 1, and since the power generation cabin 2 rotates along with the capture of ocean energy by the second blade 91, that is, the power generation cabin 2 rotates in the opposite direction to the main shaft 1, when the automatic clamping mechanism clamps the main shaft 1, the operation gradually reduces the rotation speed of the main shaft 1, and the function of braking is achieved by using the sea water resistance, thereby protecting the equipment.

Referring to fig. 11, the wave energy, wind energy and ocean current energy combined power generation device may also employ a wind energy capturing unit 8 of a horizontal axis structure.

Example 5:

referring to fig. 12, the present embodiment is mainly different from embodiment 1 in that: the floating body 3 adopts floating columns 32, specifically, a plurality of floating columns 32 are vertically arranged on the outer side of the power generation cabin 2 in a circumferential array, ballast chambers are formed in each floating column 32, and in this embodiment, the number of the floating columns 32 is three, but not limited to three, four, five, etc. can also be adopted.

Connecting pipes 33 are fixed between the adjacent floating columns 32, the connecting pipes 33 can keep the relative positions of the adjacent floating columns 32, the connecting pipes 33 can be communicated with the ballast chambers of the adjacent floating columns 32, and beam frames 321 are fixed between each floating column 32 and the power generation cabin 2 and used for keeping the relative positions of the floating columns 32 and the power generation cabin 2.

The middle parts of the connecting pipes 33 are also fixed with ballast valves 331, and when the plurality of floating columns 32 float above the water surface to drive the power generation tank 2 to vertically move, the ballast valves 331 can be opened or closed to change the water amount entering the ballast chambers. Thereby counteracting the swinging movement and improving the stability of the power generation device.

The principle of this embodiment is: by adopting the technical scheme, along with the fluctuation of water flow, the floating columns 32 can be pushed to move vertically, so that the power generation cabin 2 is driven to move vertically, the conversion of wave energy into electric energy is realized, in addition, due to the arrangement of the ballast chamber and the ballast valve 331, the floating of the horizontal plane can be counteracted, and the swinging movement can be counteracted by changing the water quantity of the ballast chamber, so that the stability of the power generation device is improved.

Example 6:

referring to fig. 12, the difference between this embodiment and embodiment 5 is that: the middle part of the connecting pipe 33 is also fixed with a wils turbine 332, when the water level in each ballast chamber rises or falls along with the movement of waves, the water level floats to push air from one ballast chamber to the other ballast chamber through the connecting pipe 33, and the wils turbine 332 rotates through the movement of air between the chambers, so that power is generated, and the power generation efficiency is further improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (16)

1. A wave energy power plant, comprising:

a main shaft (1);

the power generation cabin (2) is arranged outside the main shaft (1), a power transmission assembly (4) is connected between the power generation cabin (2) and the main shaft (1), and when the power generation cabin works, waves drive the power transmission assembly (4) to slide along the axial direction of the main shaft (1);

the floating body (3) is arranged outside the power generation cabin (2) and is used for enabling the power generation cabin (2) to float on the sea surface, and the total buoyancy of the floating body (3) and the power generation cabin (2) is equal to or smaller than the total weight force of the floating body (3) and the power generation cabin (2);

the connecting part (31) is connected between the power generation cabin (2) and the floating body (3) and used for limiting the floating body (3) and the power generation cabin (2) to synchronously lift;

the first power generation unit (5) is connected between the main shaft (1) and the power generation cabin (2) and is used for converting the sliding kinetic energy of the power transmission assembly (4) into electric energy.

2. The wave power unit according to claim 1, characterized in that: the floating body (3) can swing around the axis of the power generation cabin (2) and is connected with the power generation cabin (2).

3. The wave power unit according to claim 2, characterized in that: the floating body (3) is annular, the connecting portion (31) comprises an inner ring (311) and two pivots (313), the inner ring (311) and the floating body (3) are coaxially arranged, the pivots (313) are all arranged along the radial direction of the inner ring (311), the two pivots (313) are mutually perpendicular, one pivot (313) is rotationally connected between the inner ring (311) and the power generation cabin (2), and the other pivot (313) is rotationally connected between the inner ring (311) and the floating body (3).

4. Wave power unit according to claim 2, characterized in that the floating body (3) comprises:

a plurality of floating columns (32) which are fixed on the outer side of the power generation cabin (2) in a circumferential array, and loading chambers are formed in the floating columns (32);

a plurality of connecting pipes (33) which are respectively fixed between the adjacent floating columns (32) and are communicated with the adjacent loading chambers;

and a ballast valve (331) provided in the connection pipe (33) for changing the amount of water entering the ballast chamber.

5. The wave power unit of claim 4, further comprising: and a Welst turbine (332), wherein the Welst turbine (332) is arranged on the connecting pipe (33).

6. The wave power unit according to claim 1, characterized in that: the power transmission assembly (4) includes:

the first linear transmission part (41) is parallel to the main shaft (1) and synchronously ascends and descends along with the main shaft (1), and the middle position of the first linear transmission part (41) is penetrated in the power generation cabin (2);

the first circumferential transmission part (42) is positioned in the power generation cabin (2) and synchronously ascends and descends along with the power generation cabin (2), the first circumferential transmission part (42) is meshed with the first linear transmission part (41), and when the first linear transmission part (41) moves relative to the first circumferential transmission part (42), the first circumferential transmission part (42) rotates.

7. The wave power unit according to claim 1, characterized in that: the power transmission assembly (4) includes:

the linear transmission part II (43) is parallel to the main shaft (1), is positioned in the power generation cabin (2) and synchronously rises and falls along with the generator;

the second circumferential transmission part (44) is positioned in the power generation cabin (2) and synchronously ascends and descends along with the main shaft (1), the second circumferential transmission part (44) is meshed with the second linear transmission part (43), and when the second linear transmission part (43) moves relative to the second circumferential transmission part (44), the second circumferential transmission part (44) rotates.

8. The wave power unit according to claim 1, characterized in that: the power generation system further comprises a plurality of anchor buoys (7), wherein the anchor buoys (7) are distributed along the circumferential direction of the power generation cabin (2), and anchor chains (71) are connected between the anchor buoys (7) and the floating body (3) or the power generation cabin (2).

9. The wave power unit according to claim 1, characterized in that: the power generation cabin (2) comprises a stabilizer (21), and the stabilizer (21) is in an annular shape coaxial with the main shaft (1) and extends towards the lower end part of the main shaft (1).

10. A wind-water power combined generator comprising the wave energy power generation device according to any one of claims 1 to 9, further comprising:

the wind energy capturing unit (8) is positioned above the power generation cabin (2), and the buoyancy of the main shaft (1) positioned at the underwater part is equal to the total weight force of the wind energy capturing unit (8) and the main shaft (1);

the connecting component (11) is connected between the main shaft (1) and the power transmission component (4) and is used for realizing the relative rotation of the main shaft (1) and the power generation cabin (2);

and the second power generation unit (6) is connected between the wind energy capturing unit (8) and the power generation cabin (2) and is used for converting wind energy into electric energy.

11. The wind-water power combined generator of claim 10 wherein: the wind energy capturing unit (8) is a vertical axis generator set, and the main shaft (1) synchronously rotates along with the wind energy capturing unit (8).

12. The wind-water power combined generator of claim 10 wherein: the wind energy capturing unit (8) is a horizontal shaft generator set;

a plurality of anchoring lines (12) are fixed on the peripheral wall of the main shaft (1) in a circumferential array;

and one end of the anchoring line (12) away from the main shaft (1) is fixedly provided with an anchor pile (121) for being buried into the seabed.

13. The wind-water power combined generator of claim 12 wherein: the horizontal axis generator set includes:

the mast (85) is coaxially fixed at the upper end of the main shaft (1);

a fairing (86) rotatably arranged around the mast (85) and on one side of the mast (85);

a nacelle (84) rotatably connected to the upper end of the mast (85);

a wind wheel (83) rotatably arranged in the nacelle (84) for capturing wind energy.

14. Wind-water combined generator according to claim 13, characterized in that the second power generation unit (6) comprises:

a transmission shaft (841) rotatably connected to the nacelle (84), and the axis of the wind wheel (83) is fixed to the transmission shaft (841);

a driven shaft (851) coaxially rotated within the mast (85);

a reversing transmission mechanism (842) connected between the transmission shaft (841) and the driven shaft (851);

and a third generator, which is arranged in the engine room (84) or the main shaft (1), and is used for converting the rotation mechanical energy of the driven shaft (851) into electric energy.

15. Wind-water power combined generator according to any of claims 10-14, characterized in that it further comprises ocean current energy capturing units (9) coaxially surrounding the outside of the main shaft (1), which ocean current energy capturing units (9) are capable of rotating relative to the main shaft (1), and the second ocean current energy capturing units (9) are connected between the ocean current energy capturing units (9) and the power generation tanks (4) for converting ocean current energy into electric energy.

16. The wind-water power combined generator of claim 15 wherein: the automatic clamping mechanism is arranged in the power generation cabin (4) and used for clamping the main shaft (11) when the rotating speed of the main shaft (11) exceeds a threshold value.