CN112855418A - Array winding rope type double-floating-body wave energy power generation device - Google Patents
Array winding rope type double-floating-body wave energy power generation device Download PDFInfo
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- CN112855418A CN112855418A CN202110080315.1A CN202110080315A CN112855418A CN 112855418 A CN112855418 A CN 112855418A CN 202110080315 A CN202110080315 A CN 202110080315A CN 112855418 A CN112855418 A CN 112855418A
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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"
- F03B13/20—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" wherein both members, i.e. wom and rem are movable relative to the sea bed or shore
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4466—Floating structures carrying electric power plants for converting water energy into electric energy, e.g. from tidal flows, waves or currents
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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
Abstract
The invention discloses an array rolling rope type double-floating-body wave energy power generation device which comprises a power generation system and an anchoring system, wherein the power generation system comprises a power generation system and a power generation system; the power generation system comprises an upper floating body, a lower floating body and a rope winding rope, wherein the upper floating body is connected with the lower floating body through the rope winding rope arranged in a circumferential array; the upper floating body comprises an upper floating body shell, and an array type power generation module, a ballast adjusting module and an electric energy management module which are arranged in the upper floating body shell, wherein the electric energy management module is connected with the array type power generation module, and the array type power generation module is connected with the lower floating body through a rope winding rope; the anchoring system comprises a plurality of groups of buoys and ropes, the buoys are distributed around the upper floating body and are respectively connected with the upper floating body through the ropes, and the buoys are all connected with anchors. The wave energy is collected, the device generates electricity on the sea surface in a floating mode through the anchoring system and the power generation system, and the wave energy is collected under the condition that the ocean viability is guaranteed.
Description
Technical Field
The invention relates to the technical field of wave power generation, in particular to an array rolling rope type double-floating-body wave power generation device.
Background
China is long in coastline, island star-and-go chess is laid, ocean resources are abundant, and however, lack of electric power becomes a key problem restricting social and economic development of coastal island reefs. Many islands are far away from power plants, have extensive and rare land, have small total power consumption and other reasons, and long-distance erection of a power transmission network has poor economic benefit, especially, the early investment and the later maintenance cost for laying submarine cables are huge, and the cost is difficult to recover, so the power supply multipurpose diesel generator and the reduction gear box are provided, and the consumption of non-renewable energy can cause serious environmental pollution. For general coastal residential areas, the wave energy power generation device can be incorporated into a local power grid, provides stable electric energy, reduces environmental pollution, and can also be applied to the fields of marine emergency, aquaculture, meteorological detection, water exploitation and the like. For the island beach areas with strategic significance, the device can also be applied to supply energy to wireless communication equipment, Beidou satellite navigation locators and other equipment. In addition, aiming at the problem of scarcity of fresh water resources of coastal island reefs, wave energy power generation can be applied to seawater desalination, and the produced fresh water is used for crop irrigation and domestic water to construct a sustainable system of 'food-energy-water (F-E-W)' virtuous cycle.
The traditional wave energy power generation device can be divided into a point absorption type (oscillation float type), an oscillation water column type, a wave crossing type, a sea snake type, a pendulum type and the like. The point absorption type power generation device is most applied, and the traditional point absorption type wave energy device has wide development prospect but still has the defects. Point absorption wave energy converters have been developed in large numbers over the past decades. The first generation point absorber is a mono-body system that vibrates during heave. In order to obtain maximum absorbed power, the natural frequency of the oscillating mass needs to be matched to the frequency of the incident wave. However, in practical applications, this is often difficult to achieve, since the typical incident wave frequency is usually low (0.1Hz-0.2 Hz). Therefore, in order to match the natural frequency of the float to the incident wave frequency, the size of the float needs to be very large. According to calculation, the diameter of the submerged hemisphere needs to reach 52.4m to match the incident wave frequency of 0.1Hz, and the size of the floating body is not matched with the actual engineering, so that the floating body has no practical value.
In order to solve the problems encountered by the single float in the open sea area, the wave energy device is gradually developed from the single float to the multi-float. At present, a double-floating-body wave energy conversion device is mainly adopted, and an additional body is designed under a floating body to form a double-body wave energy converter. A double float point absorption wave energy converter is a promising and cost-effective design that uses the relative motion between the buoy and the submerged object to extract energy. Research shows that under the excitation of the same regular or irregular wave, when the nonlinear coefficient is unchanged, if the damping is smaller, the performance of the double-floating body is better than that of a single-floating body no matter the wave energy absorption bandwidth or the total benefit of the wave energy conversion efficiency; even if there is a large viscous damping, the energy absorption capacity of a double float system is significantly higher than that of a single float system due to the viscous effect of the submerged object if the submergence dimensions of the floats are properly designed, and the absorbed power is significantly increased. The maximum absorption power of the double-floating-body system after optimization can be more than twice of that of the single body system. Therefore, there has been a trend in the design of wave energy conversion devices to develop double float point absorption type wave energy converters, which can effectively improve energy conversion efficiency.
The traditional oscillating float type wave energy conversion device has low conversion efficiency because the energy is converted by wave energy, mechanical energy, hydraulic energy, electric energy and other multi-stage; the marine rigid transmission is seriously damaged by wave force in the sea, and the water resistance and corrosion resistance are poor, so that the marine viability is insufficient; the equipment is complex, which causes the problems of inconvenient transportation, installation and maintenance, high cost and the like. In the present stage, a simpler, efficient and reliable structure is urgently needed to convert and utilize wave energy.
Disclosure of Invention
The invention aims to solve the technical problem that the array winding rope type double-floating-body wave energy power generation device is provided for overcoming the defects in the prior art, so that the collection of wave energy is realized, the device generates power on the sea surface in a floating mode through an anchoring system and a power generation system, and the collection of the wave energy is realized under the condition of ensuring the ocean viability.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an array cable-winding type double-floating-body wave energy power generation device comprises a power generation system and an anchoring system; the power generation system comprises an upper floating body, a lower floating body and rope coiling ropes, wherein the upper floating body is connected with the lower floating body through the rope coiling ropes arranged in an array along the circumferential direction;
the upper floating body comprises an upper floating body shell, and an array type power generation module, a ballast adjusting module and an electric energy management module which are arranged in the upper floating body shell, wherein the electric energy management module is connected with the array type power generation module, and the array type power generation module is connected with the lower floating body through a rope winding rope; the anchoring system comprises a plurality of groups of buoys and ropes, the buoys are distributed around the upper floating body and are respectively connected with the upper floating body through the ropes, and the buoys are all connected with anchors.
According to the technical scheme, the upper floating body shell is internally provided with a baffle plate to separate an inner cavity of the upper floating body shell into a rope coiling cabin, a function cabin and a water inlet and drainage cabin, the array type power generation module and the electric energy management module are arranged in the function cabin, the joint of the rope coiling rope and the upper floating body is arranged in the rope coiling cabin, and the ballast adjusting module is arranged in the water inlet and drainage cabin.
According to the technical scheme, the number of the rope coiling cabins and the number of the function cabins are multiple, the water inlet and drainage cabins are arranged in the middle of the upper floating body shell, and the rope coiling cabins and the function cabins are distributed in an array mode at intervals along the circumferential direction of the water inlet and drainage cabins.
According to the technical scheme, the array type power generation module is composed of a plurality of groups of cable winding type power generation devices, the plurality of groups of cable winding type power generation devices are uniformly arranged in the upper floating body shell along the circumferential direction, each cable winding type power generation device comprises a spring, a transmission shaft, a winch, a one-way clutch, a reduction gear box and a power generator, one end of the transmission shaft is connected with the spring, the other end of the transmission shaft is connected with the power generator through the reduction gear box through the one-way clutch, the winch is arranged on the transmission shaft, and the winch; one end of the rope winding rope is wound on the winch, and the other end of the rope winding rope penetrates through the upper floating body shell to be connected with the lower floating body.
According to the technical scheme, the input shaft of the generator is provided with the physical inertia, the physical inertia is arranged between the one-way clutch and the reduction gear box, and the physical inertia is arranged in the functional cabin.
According to the technical scheme, the function cabin is located on two sides of the rope coiling cabin, the spring, the reduction gear box and the generator are respectively arranged in the function cabin on two sides of the rope coiling cabin, the winch is arranged in the rope coiling cabin, and the transmission shaft transversely penetrates through the rope coiling cabin.
According to the technical scheme, the ballast adjusting module comprises a ballast pump, a water level sensor, a water inlet and outlet port and an electric control device, the ballast pump and the water level sensor are arranged in the water discharge cabin, the water inlet and outlet port is communicated with an inner cavity of the water discharge cabin through the ballast pump, the water inlet and outlet port is provided with a water valve, the outer part of the floating body is provided with a pressure sensor, and the electric control device is respectively connected with the ballast pump, the water level sensor, the pressure sensor and the water valve; the electric control device is connected with an acceleration sensor which is arranged on the upper floating body.
According to the technical scheme, the rope coiling cabin is communicated with the outside through a rope channel, and a channel guide wheel set is arranged at the inlet of the rope channel of the rope coiling cabin;
the channel guide wheel set comprises four channel guide wheels and a rope channel frame which are arranged in a double-layer mode, the four channel guide wheels are arranged on the rope channel frame in a square shape or a # -shape, the rope channel frame is fixedly arranged on the rope channel, and a rope winding rope penetrates through the middle of a square-shaped or a # -shaped structure formed by the four channel guide wheels and enters the rope channel and the rope winding cabin.
According to the technical scheme, the guide wheel and the guide wheel shaft are arranged in the rope coiling cabin, the guide wheel is arranged on one side of the winch, the guide wheel is sleeved on the guide wheel shaft, two ends of the guide wheel shaft are fixedly connected with the side wall of the rope coiling cabin, and the rope coiling rope is wound on the winch after passing through the guide wheel.
According to the technical scheme, the number of the buoys is multiple, a multi-point buoy anchoring system is formed, and the connecting points of the 3 buoy anchoring systems and the upper floating body are uniformly arranged along the circumferential direction of the upper floating body.
The invention has the following beneficial effects:
1. according to the invention, the distance between the upper floating body and the lower floating body is continuously changed along with the fluctuation of the wave, the rope is pulled, the wave energy is collected through the relative motion between the upper floating body and the lower floating body, then the wave energy is converted into electric energy through the power generation device, the collection of the wave energy is realized, the device generates power on the sea surface in a floating manner through the anchoring system and the power generation system, and the collection of the wave energy is realized under the condition of ensuring the ocean viability.
2. Through the rope winding ropes connected by the multiple groups of power generation modules, the wave energy in multiple directions is collected by the rope winding ropes between the upper floating body and the lower floating body, the energy utilization efficiency is improved, the multi-point anchoring is formed by the multiple groups of buoy anchoring modules, the capability of the floating body in resisting severe sea conditions is improved, and the service life of the device is prolonged.
Drawings
FIG. 1 is a schematic overall diagram of an array rope-rolling double-floater wave energy power generation device in an embodiment of the invention;
FIG. 2 is a schematic view showing the internal structure of the upper float in the embodiment of the present invention;
FIG. 3 is an elevational view of a spooled power generation unit in an embodiment of the invention;
fig. 4 is a schematic view of a lane guide wheel set in an embodiment of the present invention.
In the figure, 1-mooring system, 2-lower float, 3-upper float, 4-ballast pump, 5-water valve, 6-generator and reduction gear box, 7-physical inertia, 8-guide wheel, 9-rope, 10-spring housing, 11-motor support, 12-one-way clutch, 13-first bearing, 14-sealing structure, 15-transmission shaft, 16-winch, 17-spring, 18-spring support, 19-guide wheel shaft, 20-channel guide wheel group;
1-1-anchor, 1-2-buoy, 1-3-rope, 3-1-water inlet and outlet cabin, 3-2-functional cabin and 3-3-rope coiling cabin;
20-1-rope channel frame, 20-2-channel guide wheel, 20-3-channel guide wheel shaft and 20-4-second bearing.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 3, in one embodiment, the invention provides an array rope-rolling type double-floating-body wave energy power generation device, which comprises a power generation system and a mooring system 1; the power generation system comprises an upper floating body 3, a lower floating body 2 and a rope winding rope 9, wherein the upper floating body 3 and the lower floating body 2 are connected through the rope winding rope 9 arranged in an array along the circumferential direction;
the upper floating body 3 comprises an upper floating body shell, and an array type power generation module, a ballast adjusting module and an electric energy management module which are arranged in the upper floating body shell, wherein the electric energy management module is connected with the array type power generation module, and the array type power generation module is connected with the lower floating body 2 through a rope winding rope 9; the anchoring system 1 comprises a plurality of groups of buoys 1-2 and ropes 1-3, the plurality of groups of buoys 1-2 are distributed around the upper floating body 3 and are respectively connected with the upper floating body 3 through the ropes 1-3, the plurality of groups of buoys 1-2 are all connected with anchors 1-1, and each buoy 1-2 is connected with one anchor 1-1.
Furthermore, a baffle plate is arranged in the upper floating body shell to partition the inner cavity of the upper floating body shell into a rope winding cabin 3-3, a function cabin 3-2 and a water inlet and outlet cabin 3-1, the array type power generation module and the electric energy management module are arranged in the function cabin 3-2, the connection part of the rope winding rope 9 and the upper floating body 3 is arranged in the rope winding cabin 3-3, and the ballast adjusting module is arranged in the water inlet and outlet cabin 3-1.
Furthermore, the number of the rope coiling cabins 3-3 and the number of the functional cabins 3-2 are multiple, the water inlet and drainage cabins 3-1 are arranged in the middle of the upper buoy shell, and the rope coiling cabins 3-3 and the functional cabins 3-2 are distributed at intervals along the circumferential direction of the water inlet and drainage cabins 3-1.
Furthermore, the array type power generation module is composed of a plurality of groups of cable winding type power generation devices, the plurality of groups of cable winding type power generation devices are uniformly arranged in the upper floating body shell along the circumferential direction, each cable winding type power generation device comprises a spring 17, a transmission shaft 15, a winch 16, a one-way clutch 12, a reduction gear box and a power generator, one end of the transmission shaft 15 is connected with the spring 17, the other end of the transmission shaft 15 is connected with the power generator through the reduction gear box through the one-way clutch 12, the winch 16 is arranged on the transmission shaft 15, and the winch 16 is fixedly arranged; one end of the rope winding rope 9 is wound on the winch 16, and the other end penetrates through the upper floating body shell to be connected with the lower floating body 2.
The number of the multiple groups of rope-wound power generation devices is 2, 3 or 4, wherein the optimal selection is that the number of the multiple groups of rope-wound power generation devices is 3.
Further, the input shaft of the generator is provided with a physical inertia 7, the physical inertia 7 is arranged between the one-way clutch 12 and the reduction gearbox, and the physical inertia 7 is arranged in the functional compartment 3-2.
Further, the anchoring system 1 comprises a plurality of groups of anchoring structures in a circumferential array, one group of anchoring structures comprises buoys 1-2, ropes 1-3 and anchors, the anchors are fixed with the seabed during work, the anchors are connected with the buoys 1-2 through the ropes 1-3, and the buoys 1-2 are connected with the upper buoy shell through the ropes 1-3.
Further, the function cabin 3-2 is located on two sides of the rope coiling cabin 3-3, the spring 17, the reduction gear box and the generator are respectively arranged in the function cabin 3-2 on two sides of the rope coiling cabin 3-3, the winch 16 is arranged in the rope coiling cabin 3-3, and the transmission shaft 15 transversely penetrates through the rope coiling cabin 3-3.
Furthermore, the ballast adjusting module comprises a ballast pump 4, a water level sensor, a water inlet and outlet port and an electric control device, the ballast pump 4 and the water level sensor are arranged in the water discharge tank, the water inlet and outlet port is communicated with an inner cavity of the water discharge tank through the ballast pump 4, the water inlet and outlet port is provided with a water valve 5, the outer part of the upper floating body is provided with a pressure sensor, and the electric control device is respectively connected with the ballast pump 4, the water level sensor, the pressure sensor and the water valve 5; the electric control device is connected with an acceleration sensor which is arranged on the upper floating body 3.
Further, the electronic control device includes a processor.
Further, the rope coiling cabin 3-3 is communicated with the outside through a rope channel, and a channel guide wheel set 20 is arranged at the entrance of the rope channel of the rope coiling cabin 3-3;
the channel guide wheel set 20 comprises four channel guide wheels 20-2 and a rope channel frame 20-1 which are arranged in a double-layer mode, the four channel guide wheels 20-2 are arranged on the rope channel frame 20-1 in a square shape or a groined shape, the rope channel frame 20-1 is fixedly arranged on the rope channel, and the rope coiling rope 9 passes through the middle part of a square or groined structure formed by the four channel guide wheels 20-2 and enters the rope channel and the rope coiling cabin 3-3.
Further, a winch 16 is arranged in the rope coiling cabin 3-3, a rope coiling rope 9 is wound on the winch 16 and is connected with the lower floating body 2 through a rope coiling channel by a guide wheel 8, a transmission shaft 15 transversely penetrates through the rope coiling cabin 3-3, and the transmission shaft 15 is sealed with the side wall of the rope coiling cabin 3-3 in a waterproof mode.
Furthermore, the number of the channel guide wheel sets 20 is 2, the channel guide wheels 20-2 are respectively arranged at the upper and lower inlets of the rope channel, the channel guide wheels 20-2 are cylindrical to form cylindrical guide wheels, the profile of the channel guide wheels 20-2 is arc-shaped, each channel guide wheel 20-2 is sleeved on the corresponding channel guide wheel shaft 20-3, and the channel guide wheel shafts 20-3 are fixed on the rope channel frame 20-1.
The channel guide wheel shaft 20-3 is connected with the rope channel frame 20-1 through a bearing, or a bearing is arranged between the channel guide wheel shaft 20-3 and the channel guide wheel.
Furthermore, a guide wheel 8 and a guide wheel shaft 19 are arranged in the rope coiling cabin 3-3, the guide wheel 8 is arranged on one side of the winch 16, the guide wheel 8 is sleeved on the guide wheel shaft 19, two ends of the guide wheel shaft 19 are fixedly connected with the side wall of the rope coiling cabin 3-3, and the rope coiling rope 9 is wound on the winch 16 after passing through the guide wheel 8.
Furthermore, the number of the buoys 1-2 is 3, so that a three-point buoy anchoring system is formed, and the connecting points of the 3 buoy anchoring systems and the upper buoy 3 are arranged along the circumferential direction of the upper buoy 3.
The working principle of the invention is as follows: the device is applied to the sea and generates electricity by using the energy of ocean waves; the distance between the upper floating body 3 and the lower floating body 2 changes constantly along with the fluctuation of the wave, when the distance between the upper floating body 3 and the lower floating body 2 becomes large and the rope 9 is pulled, the winch 16 drives the shaft to rotate in the forward direction to release the rope 9, so that the generator and the reduction gear box 6 generate electricity and store a part of energy through the spring 17, when the distance between the upper floating body 3 and the lower floating body 2 becomes small, the spring 17 releases a part of energy, the winch 16 is driven to rotate in the reverse direction through the shaft to recover the rope 9, the shaft is rotated in the two directions through the one-way clutch 12 to be converted into one-way rotation to be input to the generator and the reduction gear box 6, and the generator transmits the generated electric energy to the electric energy management module.
Its external structure view refers to fig. 1, including: the anchor 1-1 is fixedly arranged on the sea bottom and is connected with a pair of buoys 1-2 floating on the sea surface through a first section of rope 1-3 so as to complete the primary positioning of the device on the sea surface.
The buoy 1-2 is fixedly connected with two sections of ropes 1-3, the first section is connected with the anchor 1-1 and the buoy 1-2, the second section is connected with the upper floating body 3 and the buoy 1-2, and the positioning of the device is completed.
The anchoring system 1 is divided into a plurality of groups in order to ensure the balance of the upper floating body 3 on the sea surface, a plurality of anchors 1-2 are distributed on the sea bottom in a circumferential array, the length of each section of rope is the same, and each section of rope is connected to the upper floating body 3 in a circumferential array. The multi-point positioning ensures that the device does not drift with the waves when the device is subjected to waves in multiple directions or large tides.
The double-float structure referring to fig. 1, comprises: a lower float 2 and an upper float 3;
the lower floating body 2 is provided with a plurality of rope winding connecting holes, and the plurality of holes are distributed in an included angle circumferential array.
An upper floating body 3 and a plurality of sections of ropes 1-3 are fixedly connected on a rib plate on the outer side wall of the upper floating body 3. The upper floating body is divided into a floating body cover and a main floating body and is provided with seven cabins, 3 rope coiling cabins 3-3 and 3 functional cabins 3-2 which are distributed in a circumferential array, and a water inlet and drainage cabin 3-1 in the middle of the floating body.
The internal structure of the upper floating body is shown in fig. 2, and comprises: the water supply and drainage device comprises a ballast pump 4, a water valve 5, a generator and reduction gear box 6, a physical inertia 7, a guide wheel 8, a rope winding rope 9, a spring shell 10, a motor support 11, a one-way clutch 12, a first bearing 13, a sealing structure 14, a transmission shaft 15, a winch 16, a spring 17 and a spring mounting support 18, wherein a filter screen is arranged at a water inlet and a water outlet of a water inlet and drainage tank;
and the ballast pump 4 is arranged in a water inlet and outlet tank 3-1 in the middle of the upper floating body. The water inlet and the water outlet of the ballast pump are hermetically connected with the upper hole of the shell at the bottom of the center of the upper floating body 3. The ballast pump is also matched with a pressure sensor which is arranged on the outer wall of the upper floating body. When the pressure sensor senses that the device is in a state of not storing water and the external pressure of the device exceeds a set critical value, the ballast pump 4 starts to inject water into the buoyancy adjusting cabin, the self weight of the device is increased, the floating body sinks, the stress of the ropes 1-3 is reduced, the device is guaranteed not to be destroyed when suffering from tide and tide or severe sea conditions, and the marine viability of the device is improved.
The filter screen is fixedly arranged at the water inlet and outlet of the water discharge cabin and filters and discharges solid substances in water when the ballast pump is used for water injection.
The generator and reduction gear box 6 is fixedly arranged on the motor support 11, and an output shaft of the generator and reduction gear box 6 is fixedly connected with one end of the physical inertia 7. The reduction gearbox and the motor are designed into a whole and are arranged at the right ends of the generator and the reduction gear box.
And the left end of the physical inertia 7 is fixedly connected with a one-way clutch 12, and the right end of the physical inertia is fixedly connected with the input shaft of the generator and the reduction gear box 6.
The guide wheel 8 is arranged on one side of the winch 16, the guide wheel is sleeved on the guide wheel shaft 19, two ends of the guide wheel shaft 19 are fixedly connected with the side wall of the rope coiling cabin 3-3, and the rope coiling rope 9 bypasses the guide wheel 8.
The rope winding rope 9, the rope winding rope upper end and 16 sleeve fixed connection of capstan winch, from last down around leading wheel 8, through the rope winding passageway and passageway rope winding guide pulley 20, the lower extreme links firmly with a plurality of rope winding connecting holes of lower body 2, under the wave action, goes up floating body 3 and lower floating body 2 and produces relative motion for the rope winding rope drives the capstan winch and rotates, accomplishes the conversion of wave energy.
And the motor bracket 11 is fixedly arranged in the functional cabin 3-2 of the upper floating body 3.
One-way clutch 12, one-way clutch install in physical inertia 7 left end blind hole, one-way clutch 12 outside links firmly with physical inertia 7 left end blind hole, and one-way clutch 12 is inside links firmly with the 15 right-hand members of transmission shaft. When the transmission shaft 15 rotates clockwise, the one-way clutch 12 is engaged, so that the physical inertia 7 and the transmission shaft 15 keep synchronous rotating speed. When the transmission shaft 15 rotates counterclockwise, the one-way clutch 12 is disengaged, and the physical inertia 7 keeps the transmission shaft 15 rotating by inertia.
The first bearings 13 are a pair of first bearings 13 and are symmetrically arranged in bearing holes on the outer walls of the two sides of the functional cabin 3-2 of the upper floating body 3, and the outer ring of the first bearings 13 is fixedly connected with the upper floating body shell. The inner ring of the first bearing 13 is in interference fit with the transmission shaft 15, the clamp spring groove is formed in the transmission shaft 15, and after the upper shaft is installed, the clamp spring is installed in the clamp spring groove, so that the shaft cannot transversely slide relative to the bearing, and the transmission stability is guaranteed.
And the sealing structure 14 is arranged on the inner wall of the power generation cabin (spring cabin) 3-2 of the upper floating body 3 and is matched with the transmission shaft 15, so that water in the rope coiling cabin 3-3 is prevented from entering other cabins, and a waterproof effect is achieved.
The transmission shaft 15 is provided with the generator and reduction gear box 6, the physical inertia 7, the one-way clutch 12, the clamp spring, the first bearing 13, the sealing structure 14, the winch 16, the sealing structure 14, the first bearing 13, the clamp spring and the spring 17 from left to right at one time.
The winch 16, the sleeve of which is fixedly connected with the transmission shaft 15, makes the winch 16 start to rotate when the rope is pulled, and simultaneously the transmission shaft 15 and the winch 16 keep synchronous rotating speed. The wave energy is converted into the angular momentum of the input shaft to complete the energy input. And the winch of the upper floating body rope winding cabin 3-3 is fixedly connected with the shaft and the rope winding rope, and can synchronously rotate with the shaft when the rope winding rope is pulled.
And the spring 17 is fixedly arranged in the clamping groove of the transmission shaft 15 through an inner hook of the spring 17. When the distance between the upper floating body 3 and the lower floating body 2 is increased, the rope winding rope 9 is pulled to drive the winch to enable the transmission shaft 15 to rotate clockwise, and the spring is tightened to accumulate energy; when the upper floating body 3 and the lower floating body 2 reach the maximum distance, the spring 17 starts to release energy and starts to rewind, so that the transmission shaft 15 rotates anticlockwise to drive the winch 16 to recover the rope winding rope 9 and return to the initial state. The spring inner hook is fixedly arranged in the clamping groove of the shaft, and the outer part of the spring inner hook is fixedly connected with the spring shell.
And a spring mounting bracket 18 which is fixedly mounted at the bottom of the functional compartment 3-2 of the upper floating body 3.
And the guide wheel shaft 19 is fixedly connected to the cabin wall of the rope coiling cabin 3-3 and is arranged at one side of the winch 16.
Referring to fig. 4, the external structure diagram of the channel guide wheel set 20 is that the channel guide wheel set 20 is divided into two layers, the two layers are vertically distributed in space, each layer is symmetrically distributed by two cylindrical guide wheels, the cylindrical guide wheels 20-2 are connected with a channel guide wheel shaft 20-3 by using a pair of second bearings 20-4, and the channel guide wheel shaft 20-3 is fixed on a guide wheel shaft outer frame 20-1. The outer frame of the channel guide wheel set 20 is fixed at the inlet and outlet of the cable channel of the upper floating body 3.
When the anchor is in work, the anchor is fixed with the seabed and is connected with the buoy through the rope, and the buoy is connected with the upper buoy shell through the rope. The device generates electricity on the sea surface in a floating way through the circumferential array type power generation system and the anchoring system, and realizes the collection of wave energy under the condition of ensuring the survival capability of the sea.
In conclusion, the double-floating-body wave energy power generation device comprises a multi-point positioning anchor and a double floating body, wherein a plurality of groups of power transmission mechanisms are arranged in the upper floating body, and the upper floating body and the lower floating body are connected by a plurality of groups of rope winding ropes. The power transmission mechanism is provided with a spring at one side far away from the motor, and the spring plays roles of storing energy and recovering a coiled cable; the wave energy collecting device can collect wave energy in multiple directions by adopting multiple groups of winding cables, so that the energy utilization efficiency is improved; the invention adopts the spring to solve the recovery problem of the rope winding rope; the motor rotates in a single direction through the cooperation of the one-way clutch and the physical inertia, so that mechanical rectification is realized, and the continuous and stable operation of the device is ensured; the invention uses multi-point anchoring, the capability of the floating body for resisting severe sea conditions is improved, and the service life of the device is prolonged.
The above is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereby, and therefore, the present invention is not limited by the scope of the claims.
Claims (10)
1. An array cable-winding type double-floating-body wave energy power generation device is characterized by comprising a power generation system and an anchoring system; the power generation system comprises an upper floating body, a lower floating body and cable winding ropes, wherein the upper floating body is connected with the lower floating body through the cable winding ropes arranged in a circumferential array;
the upper floating body comprises an upper floating body shell, and an array type power generation module, a ballast adjusting module and an electric energy management module which are arranged in the upper floating body shell, wherein the electric energy management module is connected with the array type power generation module, and the array type power generation module is connected with the lower floating body through a rope winding rope; the anchoring system comprises a plurality of groups of buoys and ropes, the buoys are distributed around the upper floating body and are respectively connected with the upper floating body through the ropes, and the buoys are all connected with anchors.
2. The array rope winding type double-floater wave energy power generation device according to claim 1, wherein a baffle is arranged in the upper floater shell to separate an inner cavity of the upper floater shell into a rope winding cabin, a function cabin and a water inlet and outlet cabin, the array type power generation module and the electric energy management module are arranged in the function cabin, the joint of the rope winding rope and the upper floater is arranged in the rope winding cabin, and the ballast adjusting module is arranged in the water inlet and outlet cabin.
3. The array rope winding type double-floater wave energy power generation device according to claim 2, characterized in that the number of the rope winding cabins and the number of the function cabins are multiple, the water inlet and outlet cabins are arranged in the middle of the upper floater shell, and the rope winding cabins and the function cabins are distributed at intervals in the circumferential direction of the water inlet and outlet cabins.
4. The array rope winding type double-floating-body wave energy power generation device of claim 2, characterized in that the array power generation module is composed of a plurality of groups of rope winding type power generation devices, the plurality of groups of rope winding type power generation devices are uniformly arranged in the upper floating-body shell along the circumferential direction, each rope winding type power generation device comprises a spring, a transmission shaft, a winch, a one-way clutch, a reduction gear box and a generator, one end of the transmission shaft is connected with the spring, the other end of the transmission shaft is connected with the generator through the reduction gear box through the one-way clutch, the winch is arranged on the transmission shaft, and the winch is fixedly arranged; one end of the rope winding rope is wound on the winch, and the other end of the rope winding rope penetrates through the upper floating body shell to be connected with the lower floating body.
5. The array rope type double-floater wave energy power generation device as claimed in claim 4, wherein the input shaft of the generator is provided with a physical inertia, the physical inertia is arranged between the one-way clutch and the reduction gearbox, and the physical inertia is arranged in the functional cabin.
6. The array rope winding type double-floater wave energy power generation device according to claim 4, wherein the function cabins are arranged on two sides of the rope winding cabin, the spring, the reduction gear box and the generator are respectively arranged in the function cabins on two sides of the rope winding cabin, the winch is arranged in the rope winding cabin, and the transmission shaft transversely penetrates through the rope winding cabin.
7. The array rope-rolling type double-floater wave energy power generation device according to claim 2, characterized in that the ballast adjusting module comprises a ballast pump, a water level sensor, a water inlet and outlet port and an electric control device, the ballast pump and the water level sensor are arranged in the water outlet tank, the water inlet and outlet port is communicated with an inner cavity of the water outlet tank through the ballast pump, the water inlet and outlet port is provided with a water valve, the outer part of the upper floater is provided with a pressure sensor, and the electric control device is respectively connected with the ballast pump, the water level sensor, the pressure sensor and the water valve; the electric control device is connected with an acceleration sensor which is arranged on the upper floating body.
8. The array rope-rolling type double-floater wave energy power generation device according to claim 4, wherein the rope-rolling cabin is communicated with the outside through a rope channel, and a channel guide wheel set is arranged at the inlet of the rope channel of the rope-rolling cabin;
the channel guide wheel set comprises four channel guide wheels and a rope channel frame which are arranged in a double-layer mode, the four channel guide wheels are arranged on the rope channel frame in a square shape or a # -shape, the rope channel frame is fixedly arranged on the rope channel, and a rope winding rope penetrates through the middle of a square-shaped or a # -shaped structure formed by the four channel guide wheels and enters the rope channel and the rope winding cabin.
9. The array rope winding type double-floater wave energy power generation device according to claim 4, wherein a guide wheel and a guide wheel shaft are arranged in the rope winding cabin, the guide wheel is arranged on one side of the winch, the guide wheel is sleeved on the guide wheel shaft, two ends of the guide wheel shaft are fixedly connected with the side wall of the rope winding cabin, and the rope winding rope is wound on the winch after passing through the guide wheel.
10. The array rope-reeling type double-floater wave energy power generation device according to claim 1, wherein the number of the buoys is multiple, so that a multi-point buoy anchoring system is formed, and the connection points of the multiple buoy anchoring systems and the upper floater are uniformly arranged along the circumferential direction of the upper floater.
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| CN112855418B (en) | 2023-02-03 |
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