CN111022242A - Power generation device comprehensively utilizing wave energy and ocean current energy - Google Patents
Power generation device comprehensively utilizing wave energy and ocean current energy Download PDFInfo
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- CN111022242A CN111022242A CN201911333874.8A CN201911333874A CN111022242A CN 111022242 A CN111022242 A CN 111022242A CN 201911333874 A CN201911333874 A CN 201911333874A CN 111022242 A CN111022242 A CN 111022242A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/10—Stators
- F05B2240/13—Stators to collect or cause flow towards or away from turbines
- F05B2240/133—Stators to collect or cause flow towards or away from turbines with a convergent-divergent guiding structure, e.g. a Venturi conduit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a power generation device comprehensively utilizing wave energy and ocean current energy, which comprises a floater, a differential integration mechanism, an ocean current energy collecting mechanism, a wave energy collecting mechanism and a power generation mechanism, wherein the floater floats on the water surface, the power generation mechanism is arranged in the floater, the ocean current energy collecting mechanism and the wave energy collecting mechanism are sequentially arranged below the floater, the bottom of the floater is provided with a shell for mounting the differential integration mechanism, and the ocean current energy collecting mechanism and the wave energy collecting mechanism collect mechanical energy and transmit the mechanical energy to the power generation mechanism for power generation after being integrated by the differential integration mechanism; the ocean current energy collecting mechanism comprises an ocean current energy power shaft, a supporting frame and a one-way circulation surface, the ocean current energy power shaft is supported and installed on the lower portion of the shell through a bearing, and the ocean current energy power shaft is a hollow shaft for the wave energy collecting mechanism to transmit power from the wave energy collecting mechanism. The invention comprehensively utilizes wave energy and ocean current energy in the ocean and solves the problems of single working mode and low energy utilization rate of the traditional offshore power generation device.
Description
Technical Field
The invention belongs to the field of power generation equipment, relates to ocean power generation equipment, in particular to a power generation device comprehensively utilizing wave energy and ocean current energy, and particularly relates to a power generation device capable of utilizing the current energy of a wave horizontal plane and the potential energy in the vertical direction at the same time.
Background
The traditional energy is gradually exhausted, the problem of environmental pollution is worsened, and the development of new energy is imminent. Compared with wind energy and solar energy technologies, the wave energy power generation technology lags behind for more than ten years. However, the wave energy has the unique advantages that the energy density of the wave energy is high and is 4-30 times that of the wind energy; compared with solar energy, wave energy is not affected by weather. Most of the existing electric energy is generated by coal-fired power generation, the power generation mode has low efficiency and large air pollution, the annual average wave energy flux density of most of the global sea areas is more than 10kW/m, and the available wave energy reaches 20 hundred million kilowatts, which is equivalent to twice of the total power generation amount in the world at present.
At present, for the research of the utilization problem of wave energy, China also has a relatively advanced technology, the research of the wave energy is also advanced a lot in recent years, and the development and the utilization of the wave energy are very important for relieving the energy crisis and reducing the environmental pollution. The surging wave motion generates huge, permanent and environment-friendly energy, and if the kinetic energy of the waves and the wave energy of other water surfaces can be fully utilized, the world energy prospect can be quite wide and bright
The development direction and the target of the ocean energy in China ' 2011-2015 ' planning ' are clearly provided, the problem of electricity utilization of remote islands is mainly supported, ocean energy demonstration power stations are built in areas with abundant ocean energy resources, and construction work of tidal power stations of ten-kilowatt levels is carried out. The average theoretical power of coastal wave energy in China is 1.2854 multiplied by 107kW, which is about half of the power constant in China. However, the existing ocean energy power generation technology in China is relatively backward, and the existing ocean energy power generation device has many problems. Ocean energy power generation mainly exists: the devices can only singly collect ocean current energy or wave energy, the energy utilization rate is low, most of seawater power generation devices are early designed, the structure is heavy, the reliability is poor, the conversion efficiency is low and is about 10% -30%, and the like
Chinese patent application No. 2012105157202, this technique discloses a wave energy power generation device using the interaction of a cylinder, a rotor and an elastic plate, which comprises the design of a cylinder, a multi-stage rotor and a two-stage elastic plate. The design solves the problems that the loss of the device caused by vibration is large, regular maintenance is needed, the collection range is small and the like. However, the structure of the rotor and the elastic plate is adopted, so that the manufacturing and installation accuracy is required to be high, the price is high, the conversion rate is low, and the structure is heavy.
Disclosure of Invention
The invention aims to develop a power generation device comprehensively utilizing wave energy and ocean current energy aiming at the defects of the prior art. The device is a power generation device which can simultaneously utilize the flow energy and the potential energy in the vertical direction of the wave horizontal plane. The device mainly utilizes the characteristic that the wave height difference exists on the ocean surface and the seawater at a relatively deep position is relatively stable in the vertical direction, and accelerates the low-speed and high-energy waves in the vertical direction through the Venturi tube so as to push the turbine to rotate and realize the wave energy conversion; the ocean current energy close to the sea level is collected by utilizing the automatic opening and closing blades in the horizontal direction. Wave energy in different directions is integrated to an output shaft through a reverse differential mechanism, and power is output to a generator to generate electricity. Through the mode, the wave energy comprehensive utilization rate is improved to a certain extent, and therefore the power generation efficiency is improved.
Based on the characteristics of small fluctuation and large energy of wave energy, if the kinetic energy input into a turbine is lower due to the fact that waves directly impact the turbine, the problem is solved by adopting a Venturi tube structure. When seawater flows in from the inlet end of the speed increasing pipe and flows through the pipe body, the flow velocity of the seawater is gradually increased due to the gradual reduction of the section area of the pipe body according to the continuity principle, the turbine is connected with the outlet end of the speed increasing pipe, and the seawater has quite high flow velocity when reaching the outlet end, so that the kinetic energy input into the turbine is increased, and the power generation efficiency is improved. The speed increasing pipe has the advantages of simple structure, easy installation, convenient maintenance, stable performance, economy, durability, small head loss and capability of obviously improving the flow speed.
In addition, considering that the venturi tube floats up and down along with the fluctuation of waves, the flow direction of seawater in the venturi tube is changed, so that the power output direction of a shaft of the turbine cannot be determined, the invention adopts a gear speed regulation device: when processing anticlockwise input and clockwise input, the two ratchet wheel devices are respectively integrated on the same shaft. The steering gear is meshed with the input gear, the output shaft can rotate relatively, the ratchet wheel and the output shaft are relatively fixed, when the ratchet wheel and the pawl move reversely, the output shaft can be driven to rotate, and when the ratchet wheel moves forwards, the ratchet wheel cannot be driven to move. And the other ratchet wheel connected with the input gear is opposite in direction, so that the input gear can be converted into unidirectional rotation of the output shaft no matter the input gear rotates clockwise or anticlockwise, and full-wave output is realized.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the utility model provides a power generation facility of comprehensive utilization wave energy and ocean current energy, includes float, differential integration mechanism, ocean current energy collection mechanism, wave energy collection mechanism and power generation mechanism, its characterized in that: the wave energy collecting mechanism and the ocean current energy collecting mechanism are used for collecting mechanical energy and transmitting the mechanical energy to the power generation mechanism for power generation after being integrated by the differential integration mechanism; the ocean current energy collecting mechanism comprises an ocean current energy power shaft, a support frame and unidirectional circulation surfaces, the ocean current energy power shaft is supported and installed on the lower portion of the shell through a bearing, a plurality of pairs of unidirectional circulation surfaces are installed on the periphery of the ocean current energy power shaft through the support frame and rotate around the ocean current energy power shaft, the circulation directions of the pairs of unidirectional circulation surfaces are the same, and the ocean current energy power shaft is a hollow shaft for the wave energy collecting mechanism to transmit power from the ocean current energy power shaft.
The wave energy collecting mechanism comprises a wave energy power shaft, a Venturi tube and turbine blades, the turbine blades are mounted at the waist of the Venturi tube, the Venturi tube is arranged in the vertical direction, the lower end of the wave energy power shaft is connected with the turbine blades through a steering integration mechanism, the upper end of the wave energy power shaft penetrates through the hollow part of the ocean current energy power shaft and then is connected to a differential integration mechanism, and the wave energy power shaft is mounted and supported in the ocean current energy power shaft through a bearing.
As an improvement, the venturi tube is divided into two sections at the waist-closing part, and the two sections are connected through a flange.
As an improvement, fin-shaped blades for improving the stability of the venturi tube are arranged on the periphery of the outer part of the venturi tube.
As an improvement, a stabilizing frame is arranged in the Venturi tube and is installed on the wave energy power shaft through a bearing.
As an improvement, the differential integration mechanism comprises an integration support, a power output shaft, a middle planetary bevel gear, a first bevel gear coaxially arranged at the top of the ocean current energy power shaft and a second bevel gear coaxially arranged at the top of the wave energy power shaft, the power output shaft is coaxially fixed at the top of the integration support and is arranged in the shell through a bearing, the middle planetary bevel gear is arranged at the side part of the integration support, the upper side and the lower side of the middle planetary bevel gear are respectively meshed with the second bevel gear and the first bevel gear, the ocean current energy power shaft, the wave energy power shaft and the integration support are coaxially arranged, and the power output shaft is connected with the input of the power generation mechanism.
As an improvement, the one-way circulation surface comprises an opening and closing blade and a radial limiting sliding groove arranged on the support frame, the limiting sliding groove is divided into two sections, the opening and closing blade comprises an opening and closing blade A, an opening and closing blade B and a hinge, the opening and closing blade A and the opening and closing blade B are connected through the hinge, the outer side of the opening and closing blade A is installed in the limiting sliding groove in the outer side through a cylindrical boss A, the inner side of the opening and closing blade B is installed in the limiting sliding groove in the inner side through the cylindrical boss B, and the opening and closing blade A and the opening and closing blade B cannot be completely closed and unfolded by selecting the distance between the.
As an improvement, the steering integration mechanism comprises a turbine power input shaft, a large gear, a first intermediate gear, a second intermediate gear, a ratchet wheel A, a ratchet wheel B, a third intermediate gear and a fourth intermediate gear, the turbine power input shaft is connected with the turbine blade shaft, the large gear is fixed to the top of the turbine power input shaft, the ratchet wheel A and the ratchet wheel B are simultaneously installed on the wave energy power shaft, the directions of the ratchet wheel A and the ratchet wheel B are opposite, the first intermediate gear and the second intermediate gear are coaxially and fixedly connected, the third intermediate gear and the fourth intermediate gear are coaxially and fixedly connected, the first intermediate gear and the third intermediate gear are simultaneously meshed with the large gear, the second intermediate gear is meshed with the ratchet wheel B, and the fourth intermediate gear is meshed with the ratchet wheel A.
The floater mechanism is a conical surface floater, the floater is connected with a lower Venturi tube through a central shaft, the floater floats on the sea level, the conical floater absorbs wave energy in the vertical direction, the wave energy in the vertical direction is absorbed and converted into power for the floater and the lower Venturi tube to move vertically, and the wave energy in the horizontal direction is smaller than that in the vertical direction and is ignored; venturi mechanism includes two relative accelerating tubes, wing form blade, two relative accelerating tubes external connection wing form blades are used for guaranteeing the stability of device up-and-down motion, and the venturi middle part is mutually supported with the turbine, and venturi accelerates the rivers that come from two upper and lower directions respectively.
The steering integration mechanism comprises two ratchet wheel devices, three gear transmission mechanisms and a power transmission shaft, the two ratchet wheels are respectively meshed with the three gears, the whole device is fixed through the middle power transmission shaft, the steering gear is meshed with the input gear and can enable the output shaft to rotate relatively, the ratchet wheels and the output shaft are fixed relatively, when the ratchet wheels and the pawls move reversely, the output shaft can be driven to rotate, and when the ratchet wheels move forwards, the ratchet wheels cannot be driven to move. The other ratchet wheel connected with the input gear is opposite in direction, so that the input gear can be converted into unidirectional rotation of the output shaft no matter clockwise or anticlockwise rotation is performed, full-wave output is realized, and anticlockwise and clockwise power input is integrated on the same shaft through the two ratchet wheel devices respectively for output.
Compared with the prior art, the invention has the following advantages:
this work has utilized wave energy and ocean current energy in the ocean comprehensively through novel reverse differential mechanism structure, has solved the problem that traditional marine power generation facility working method is single, energy utilization is lower, has improved marine power generation equipment's work efficiency. The integral structure is simple, the manufacturing cost and the maintenance cost are low, the advantages of small limitation on the installation position, strong offshore adaptability, high power generation efficiency and the like are achieved, the installation scale is not limited, and the device can be used in offshore and deep sea. The method has a wide development prospect in the aspects of offshore operation power supply, coastal resident power consumption and the like.
Drawings
FIG. 1 is a schematic overall view of a power generation plant for comprehensively utilizing wave energy and ocean current energy according to the invention;
FIG. 2 is a schematic structural view of a ocean current energy collecting mechanism;
FIG. 3 is a schematic view of the opening and closing vanes and the limiting runner;
FIG. 4 is an exploded schematic view of the wave energy collecting mechanism;
FIG. 5 is a schematic view of a steering integration mechanism;
FIG. 6 is a schematic view of a steering integration mechanism;
FIG. 7 is a schematic view of a differential integration mechanism;
in the figure, I-floater, II-differential integration mechanism, III-ocean current energy collection mechanism, IV-wave energy collection mechanism, 1-support frame, 2-opening and closing blades A, 3-opening and closing blades B, 4-hinge, 5-ocean current energy power shaft, 6-limit chute, 7-cylindrical boss A, 8-cylindrical boss B, 9-stabilizing frame, 10-fin blades, 11-turbine blades, 12-Venturi tube, 13-wave energy power shaft, 14-turbine power input shaft, 15-ratchet wheel A, 16-ratchet wheel B, 17-middle planetary bevel gear, 18-power output shaft, 19-shell, 20-integration bracket, 21-first bevel gear, 22-second bevel gear, 23-big gear, 24-first intermediate gear, 25-second intermediate gear, 26-third intermediate gear, 27-fourth intermediate gear.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
As shown in fig. 1-7, the power generation device comprehensively utilizing wave energy and ocean current energy comprises a floater I, a differential integration mechanism II, an ocean current energy collection mechanism III, a wave energy collection mechanism IV and a power generation mechanism, wherein the floater I floats on the water surface and is used for supporting the whole device so that the whole device floats on the sea surface, the power generation mechanism is arranged in the floater I and is used for converting mechanical energy into electric energy, the ocean current energy collection mechanism III and the wave energy collection mechanism IV are sequentially arranged below the floater I, a shell 19 used for mounting the differential integration mechanism II is arranged at the bottom of the floater I, and the ocean current energy collection mechanism III and the wave energy collection mechanism IV collect mechanical energy and transmit the mechanical energy to the power generation mechanism for power generation after being integrated through the differential integration mechanism II; the ocean current energy collecting mechanism III comprises an ocean current energy power shaft 5, a support frame 1 and unidirectional circulation surfaces, the ocean current energy power shaft 5 is supported and installed on the lower portion of the shell 19 through a bearing, a plurality of pairs of unidirectional circulation surfaces (two pairs in the embodiment) are installed on the periphery of the ocean current energy power shaft 5 through the support frame 1, the circulation directions of the plurality of pairs of unidirectional circulation surfaces are the same around the rotation direction of the ocean current energy power shaft 5, and the ocean current energy power shaft 5 is a hollow shaft for the wave energy collecting mechanism IV to transmit power from the ocean current energy power shaft. The power generation mechanism comprises a generator and a storage battery.
As shown in fig. 4, the wave energy collecting mechanism iv includes a wave energy power shaft 13, a venturi tube 12 and turbine blades 11, the turbine blades 11 are installed at a waist-closing position of the venturi tube 12, the venturi tube 12 is arranged in the vertical direction, the lower end of the wave energy power shaft 13 is connected with the turbine blades 11 through a steering integration mechanism, the upper end of the wave energy power shaft passes through a hollow portion of the ocean current energy power shaft 5 and then is connected to a differential integration mechanism ii, the wave energy power shaft 13 is installed and supported in the ocean current energy power shaft 5 through a bearing, the venturi tube 12 is divided into two sections at the waist-closing position and connected through a flange, fin-shaped blades 10 for improving the stability of the venturi tube 12 are arranged around the outside of the venturi tube 12, a stabilizing frame 9 is arranged in the venturi tube 12, and.
As shown in fig. 7, the differential integration mechanism ii comprises an integration bracket 20, a power output shaft 18, an intermediate planetary bevel gear 17, a first bevel gear 21 coaxially arranged on the top of the ocean current energy power shaft 5 and a second bevel gear 22 coaxially arranged on the top of the wave energy power shaft 13, the power output shaft 18 is coaxially fixed on the top of the integration bracket 20 and is installed in a housing 19 through a bearing, the intermediate planetary bevel gear 17 is installed on the side portion of the integration bracket 20, the upper side and the lower side of the intermediate planetary bevel gear 17 are respectively engaged with the second bevel gear 22 and the first bevel gear 21, the ocean current energy power shaft 5, the wave energy power shaft 13 and the integration bracket 20 are coaxially arranged, and the power output shaft 18 is connected with the input of the power generation mechanism (i.e. connected with. The ocean current energy power shaft 5 and the wave energy power shaft 13 are concentric and homodromous and have different speeds, wherein the ocean current energy power shaft 5 is a hollow shaft, the wave energy power shaft 13 penetrates through the ocean current energy power shaft 5 to transmit power, the two power shafts integrate the power through an intermediate planetary bevel gear 17, the planetary gear revolves due to rotation speed difference eliminated by rotation to output the power to a power output shaft 18 through an integration bracket 20, the power output shaft 18 is connected with a generator of a power generation mechanism to generate power, and the power generated by the generator exists through a storage battery or is transmitted through a power grid.
As shown in fig. 3, the one-way circulation surface comprises an opening and closing blade and a radial limiting chute 6 arranged on the support frame 1, the limiting chute 6 is divided into two sections, the opening and closing blade comprises an opening and closing blade A2, an opening and closing blade B3 and a hinge 4, the opening and closing blade A2 is connected with the opening and closing blade B3 through the hinge 4, the outer side of the opening and closing blade A2 is installed in the limiting chute 6 at the outer side through a cylindrical boss a7, and when the inflow side of the opening and closing blade is impacted by ocean current, the two opening and closing blades are unfolded, so that the stress area is increased; the back flow side tends to close under the impact of ocean current, the inner side of the opening and closing blade B3 is arranged in the limiting sliding groove 6 on the inner side through the cylindrical boss B8, the distance between the two sections of limiting sliding grooves 6 is selected to ensure that the opening and closing blade A2 and the opening and closing blade B3 cannot be completely closed and unfolded, the opening and closing blade included angle is prevented from entering two dead points of 0 degree and 180 degrees, the water flow is unfolded from the forward flow, and the reverse flow is folded.
As shown in fig. 5 and 6, the steering integration mechanism comprises a turbine power input shaft 14, a large gear 23, a first intermediate gear 24, a second intermediate gear 25, a ratchet wheel a15, a ratchet wheel B16, a third intermediate gear 26 and a fourth intermediate gear 27, wherein the turbine power input shaft 14 is connected with the turbine blade 11 shaft, the large gear 23 is fixed at the top of the turbine power input shaft 14, the ratchet wheel a15 and the ratchet wheel B16 are simultaneously installed on the wave power shaft 13, the directions of the ratchet wheel a15 and the ratchet wheel B16 are opposite, the first intermediate gear 24 and the second intermediate gear 25 are coaxially and fixedly connected, the third intermediate gear 26 and the fourth intermediate gear 27 are coaxially and fixedly connected, the first intermediate gear 24 and the third intermediate gear 26 are simultaneously meshed with the large gear 23, the second intermediate gear 25 is meshed with the ratchet wheel B16, and the fourth intermediate gear 27 is meshed with the ratchet wheel a 15. The turbine power input shaft 14 is connected with the turbine blades 11 (shaft connection), and the wave energy power shaft 13 is connected with the differential speed integration mechanism II. When the turbine blade 11 rotates clockwise, the ratchet wheel A15 is engaged and transmits power, and the ratchet wheel B16 is released and idles, so that the shaft and the turbine blade 11 rotate in the same direction. When the turbine blade 11 rotates anticlockwise, the ratchet wheel B16 is engaged and transmits power, and the ratchet wheel A15 is loosened and idles, so that the shaft and the turbine blade 11 rotate reversely.
When the power generation device comprehensively utilizing wave energy and ocean current energy works: firstly, for ocean current energy, the ocean current in the horizontal direction pushes the opening and closing blades A2 and the opening and closing blades B3 to open and rotate around the shaft center of the shell 19, when the ocean current energy is pushed reversely, the opening and closing blades are closed, and the opening and closing blades are symmetrically distributed around the ocean current energy power shaft 5 in pairs, so that no matter which direction of ocean current energy comes, the opening and closing blades on one side are unfolded, the closing on one side generates a torque, the opening and closing blades are pushed to continuously rotate around the shaft center of the ocean current energy power shaft 5, the cylindrical boss A7 and the cylindrical boss B8 are used for ensuring that the opening and closing blades and the opening and closing blades do not enter dead points, and the support frame 1 transmits power to the ocean current energy power shaft 5. For wave energy in the vertical direction, the floater I absorbs the wave energy and converts the wave energy into vertical fluctuation, the wave energy power shaft 13 drives the whole device to float up and down, when the device sinks, seawater enters the Venturi tube 12 from the lower part, the seawater is accelerated to the maximum when reaching the middle part to drive the turbine blades 11 after passing through the Venturi tube 12, the turbine blades 11 are driven to rotate, power is output in the same direction (for example, the clockwise direction) through the wave energy power shaft 13 through the steering integration mechanism, when the device rises, the turbine blades 11 are driven to rotate in the reverse direction, and the speed is regulated by the steering integration mechanism to be changed into the. The wave energy power shaft 13 and the ocean current energy power shaft 5 respectively input power with different speeds, the generated torques are different, differential integration is carried out through the middle planetary bevel gear 17, and the integrated power is transmitted to the generator through the power output shaft 18 to generate power. According to the invention, through the novel reverse differential mechanism structure, the wave potential energy and ocean current energy in the ocean are comprehensively utilized, and the working efficiency of the offshore power generation equipment is improved. The integral structure is simple, the manufacturing cost and the maintenance cost are low, the advantages of small limitation on the installation position, strong offshore adaptability, high power generation efficiency and the like are achieved, the installation scale is not limited, and the device can be used in offshore and deep sea. The method has a wide development prospect in the aspects of offshore operation power supply, coastal resident power consumption and the like.
Claims (8)
1. The utility model provides a power generation facility of comprehensive utilization wave energy and ocean current energy, includes float, differential integration mechanism, ocean current energy collection mechanism, wave energy collection mechanism and power generation mechanism, its characterized in that: the wave energy collecting mechanism and the ocean current energy collecting mechanism are used for collecting mechanical energy and transmitting the mechanical energy to the power generation mechanism for power generation after being integrated by the differential integration mechanism; the ocean current energy collecting mechanism comprises an ocean current energy power shaft, a support frame and unidirectional circulation surfaces, the ocean current energy power shaft is supported and installed on the lower portion of the shell through a bearing, a plurality of pairs of unidirectional circulation surfaces are installed on the periphery of the ocean current energy power shaft through the support frame and rotate around the ocean current energy power shaft, the circulation directions of the pairs of unidirectional circulation surfaces are the same, and the ocean current energy power shaft is a hollow shaft for the wave energy collecting mechanism to transmit power from the ocean current energy power shaft.
2. The power generation plant for comprehensively utilizing wave energy and ocean current energy as claimed in claim 1, wherein: the wave energy collecting mechanism comprises a wave energy power shaft, a Venturi tube and turbine blades, the turbine blades are mounted at the waist part of the Venturi tube, the Venturi tube is arranged in the vertical direction, the lower end of the wave energy power shaft is connected with the turbine blades through a steering integration mechanism, the upper end of the wave energy power shaft penetrates through the hollow part of the ocean current energy power shaft and then is connected to a differential integration mechanism, and the wave energy power shaft is mounted and supported in the ocean current energy power shaft through a bearing.
3. The power generation plant for comprehensively utilizing wave energy and ocean current energy as claimed in claim 2, wherein: the venturi tube is divided into two sections at the waist-closing part, and the two sections are connected through a flange.
4. The power generation plant for comprehensively utilizing wave energy and ocean current energy as claimed in claim 2, wherein: and fin-shaped blades for improving the stability of the Venturi tube are arranged on the periphery of the outer part of the Venturi tube.
5. The power generation plant for comprehensively utilizing wave energy and ocean current energy as claimed in claim 2, wherein: a stabilizing frame is arranged in the Venturi tube and is installed on the wave energy power shaft through a bearing.
6. The power generation plant for comprehensively utilizing wave energy and ocean current energy as claimed in claim 2, wherein: the differential integration mechanism comprises an integration support, a power output shaft, a middle planetary bevel gear, a first bevel gear and a second bevel gear, the first bevel gear is coaxially arranged at the top of the ocean current energy power shaft, the second bevel gear is coaxially arranged at the top of the wave energy power shaft, the power output shaft is coaxially fixed at the top of the integration support and is arranged in the shell through a bearing, the middle planetary bevel gear is arranged on the side of the integration support, the upper side and the lower side of the middle planetary bevel gear are respectively meshed with the second bevel gear and the first bevel gear, the ocean current energy power shaft, the wave energy power shaft and the integration support are coaxially arranged, and the power output shaft is.
7. The power generation plant for comprehensively utilizing wave energy and ocean current energy as claimed in claim 1, 2 or 6, wherein: the unidirectional circulation surface comprises opening and closing blades and radial limiting sliding grooves arranged on the support frame, the limiting sliding grooves are divided into two sections, each opening and closing blade comprises an opening and closing blade A, an opening and closing blade B and a hinge, the opening and closing blade A and the opening and closing blade B are connected through the hinge, the outer sides of the opening and closing blades A are installed in the limiting sliding grooves in the outer sides through cylindrical bosses A, the inner sides of the opening and closing blades B are installed in the limiting sliding grooves in the inner sides through the cylindrical bosses B, and the opening and closing blades A and the opening and closing blades B cannot be completely closed and unfolded by selecting the distance between the two sections of limiting sliding grooves.
8. The power generation plant for comprehensively utilizing wave energy and ocean current energy as claimed in claim 1, 2 or 6, wherein: the steering integration mechanism comprises a turbine power input shaft, a large gear, a first intermediate gear, a second intermediate gear, a ratchet wheel A, a ratchet wheel B, a third intermediate gear and a fourth intermediate gear, the turbine power input shaft is connected with a turbine blade shaft, the large gear is fixed to the top of the turbine power input shaft, the ratchet wheel A and the ratchet wheel B are installed on the wave energy power shaft at the same time, the direction of the ratchet wheel A is opposite to that of the ratchet wheel B, the first intermediate gear and the second intermediate gear are coaxially and fixedly connected, the third intermediate gear and the fourth intermediate gear are coaxially and fixedly connected, the first intermediate gear and the third intermediate gear are meshed with the large gear at the same time, the second intermediate gear is meshed with the ratchet wheel B, and the fourth intermediate gear is meshed with the ratchet wheel A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911333874.8A CN111022242B (en) | 2019-12-23 | 2019-12-23 | Power generation device comprehensively utilizing wave energy and ocean current energy |
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