CN112761855A - Structure and method for generating power by using seawater tidal energy - Google Patents
Structure and method for generating power by using seawater tidal energy Download PDFInfo
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- CN112761855A CN112761855A CN202110098801.6A CN202110098801A CN112761855A CN 112761855 A CN112761855 A CN 112761855A CN 202110098801 A CN202110098801 A CN 202110098801A CN 112761855 A CN112761855 A CN 112761855A
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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
- F03B13/26—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 tide energy
- F03B13/264—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 tide energy using the horizontal flow of water resulting from tide movement
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/06—Extensible conductors or cables, e.g. self-coiling cords
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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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- 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)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Oceanography (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention provides a structure and a method for generating power by using seawater tidal energy, which comprises a plurality of floating power generation devices, cables and a plurality of power generation equipment fixing devices, wherein the power generation equipment fixing devices are erected on a seabed, the floating power generation devices float on the sea level, the cables connect the floating power generation devices in series, two ends of the floating power generation devices are connected to the power generation equipment fixing devices, each floating power generation device comprises a plurality of hollow floating devices and a power generator, the hollow floating devices are uniformly and convexly arranged outside the power generator in a fan blade shape and are connected with rotors of the power generator, the hollow floating devices provide buoyancy for the power generator and receive the impact of tidal waves to drive the power generator to generate power, and the power generation equipment fixing devices are provided with cable expansion devices which automatically control the cables to release or tighten so as to ensure that the floating. The invention has low requirement on the fluctuation range of tide, does not need to build a dam at the sea, has short construction period, low cost, small environmental pollution and wider application range, and is suitable for most coastal areas.
Description
Technical Field
The invention relates to the field of seawater tidal energy power generation, in particular to a structure and a method for generating power by utilizing seawater tidal energy.
Background
The tidal energy is renewable energy, is clean and efficient, does not pollute the environment, does not influence the ecology, does not occupy land resources, is very stable and reliable energy, and has less capital investment compared with thermal water conservancy power generation and the like. At present, a common tidal power station usually builds a dam at the sea side to form a water storage area. At high tide, seawater enters the reservoir area and is stored in the reservoir area in the form of potential energy. When the tide falls, the seawater flows out of the reservoir area, and the water turbine is pushed to rotate by utilizing the high-low tide difference to drive the generator, so that the tidal potential energy is converted into electric energy. The method also requires certain conditions for tidal power generation, such as large fluctuation range of tide, coast landform which is suitable for storing a large amount of seawater and civil engineering, thereby greatly limiting the application of tidal power generation.
Therefore, the design of the structure and the method for generating power by using the seawater tidal energy are really necessary, and the structure has low requirement on the fluctuation range of the tide, does not need to build a dam at the sea, has short construction period, low cost, small environmental pollution and wider application range, and is suitable for most coastal areas.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a structure and a method for generating power by using seawater tidal energy.
In order to solve the technical problems, the invention adopts the following technical scheme: a power generation structure by using seawater tidal energy is arranged on a seabed beside a sea and floats on the sea level, and power generation is carried out by using tidal wave energy, and the power generation structure is characterized in that: the floating power generation device comprises a plurality of floating power generation devices, cables and a plurality of power generation device fixing devices, wherein the power generation device fixing devices are erected on a seabed, the floating power generation devices float on the sea level, the cables connect the floating power generation devices in series, and two ends of the floating power generation devices are connected to the power generation device fixing devices. The floating power generation device is a power generation unit, and a plurality of floating power generation devices are connected in series through cables, so that power generation is more stable.
Preferably, the floating power generation device comprises a plurality of hollow floating devices and a generator, and the hollow floating devices are uniformly arranged outside the generator in a protruding mode.
Preferably, the power generation equipment fixing device comprises a fixing support, a cable expansion device and a pulley, the fixing support is erected on the seabed, the cable expansion device is arranged in the fixing support, the pulley is arranged at the top end of the fixing support, the cable is connected with the cable expansion device through the pulley, and the cable expansion device releases or tightens the cable through rotation to ensure that the floating power generation device floats on the sea level. The power generation equipment fixing device controls the floating of the floating power generation device on the sea level through a cable.
Preferably, the generator comprises a rotor, a stator shaft and a housing, the stator is sleeved on the stator shaft, the rotor is embedded in the housing and rotates around the stator, and the rotor is connected with the hollow floating device through the housing.
Preferably, the hollow floatation device is a hollow structure which generates sufficient buoyancy to float the generator on the sea surface
Preferably, the hollow floating device is in a fan blade shape, receives the impact of waves and drives the generator to rotate.
Preferably, the system further comprises a submarine cable, wherein the submarine cable is buried under the seabed, one end of the submarine cable is connected with a cable on the cable telescopic device, the other end of the submarine cable is connected with a transformer substation on the land, and the submarine cable transmits tidal power generation electric energy out and is converged into a power grid.
Preferably, a method of generating electricity using seawater tidal energy, comprising the steps of:
step 1, when tide rises, the floating power generation device is influenced by tide lifting, and the cable expansion device releases a cable wound on the cable expansion device, so that the floating power generation device floats on the sea level;
and 4, when the floating power generation device is influenced by the descending of tide in the tide falling process, the cable expansion device can tighten the cable wound on the cable expansion device, so that the floating power generation device floats on the sea level.
Preferably, the step 1 of generating power using seawater tidal energy further comprises the steps of:
and step 14, after releasing the cable, the floating power generation device continuously floats on the sea level, and the cable cannot be broken due to the pulling of buoyancy.
Preferably, the step 4 further comprises the steps of:
42, the cable transmits the pulling force of the floating power generation device with reduced buoyancy to the cable expansion device through the pulley;
43, automatically tightening and winding the cable wound on the cable expansion device according to the set buoyancy range;
after the cables are tightened, the floating power generation unit is tensioned by the cables, aligned and continues to float on the sea surface, step 44.
The invention has the beneficial effects that:
1) the invention does not need to build a dam at the seaside, has little influence on the environment, reduces the construction of earthwork and stone, shortens the construction period and reduces the manufacturing cost;
2) the requirement on the fluctuation range of the tide is not high, the application range is wider, and the method is suitable for coastal areas;
3) the hollow floating device is arranged on the shell of the generator, is connected with the rotor, is in a fan blade shape, provides buoyancy for the floating type generating device and can drive the rotor of the generator to rotate to generate electric energy;
4) the power generation equipment fixing device is provided with a cable telescopic device which enables the floating type power generation device to stably float on the sea surface by controlling the stretching of the cable.
5) The cable can be used as a transmission wire for power generation, and can be connected with and fixed on the floating power generation device.
Drawings
FIG. 1 is a schematic diagram of a structure for generating electricity using seawater tidal energy according to the present invention;
FIG. 2 is a schematic side view of the structure for generating electricity from seawater tidal energy according to the present invention;
FIG. 3 is a three-dimensional schematic diagram of a floating power plant utilizing a seawater tidal energy Power Generation Structure of the present invention;
FIG. 4 is a schematic cross-sectional view of a floating power plant of the present invention utilizing a seawater tidal energy generating structure;
FIG. 5 is a schematic view of a power plant fixture for a structure for generating electricity from seawater tidal energy in accordance with the present invention.
In the figure, 100 is a floating power generation device, 1 is a generator, 11 is a stator shaft, 12 is a stator, 13 is a rotor, 14 is a shell, 15 is a waterproof bearing, 2 is a hollow floating device, 3 is a cable, 4 is an instrument management platform, 41 is a fixed bracket, 42 is a cable expansion device, 43 is a pulley, and 5 is a submarine cable.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, the present invention provides a structure for generating power by using seawater and tidal energy, which is arranged on the seabed of the seaside and floats on the sea level, and generates power by using the energy of tidal waves, and is characterized in that: including a plurality of floating power generation devices 100, cable 3 and a plurality of power generation facility fixing device 4, power generation facility fixing device 4 erects on the seabed, floating power generation device 100 floats on the sea level, cable 3 concatenates a plurality of floating power generation devices 100 together, and its both ends are connected on power generation facility fixing device 4, and a plurality of floating power generation device 100 connects into one set ofly to it is perpendicular with morning and evening tides wave direction, makes its ability furthest accept the impact of wave, improves the generating efficiency.
The floating power generation device 100 is a power generation unit, a plurality of floating power generation devices 100 are connected in series through cables 3, the cable 3 connects the power generation output ends of the floating power generation devices 100 in parallel, the time and the direction of the plurality of floating power generation devices 100 in one group, which are impacted by waves, are different, the electric energy generated by a single floating power generation device is not balanced, and a plurality of floating power generation devices are connected in parallel, so that the power generation is more stable and continuous. The cable 2 comprises a plurality of power transmission wires for transmitting power generation electric quantity, flexible supporting materials are wrapped between the power transmission wires and are insulators, certain strength and toughness are achieved, the internal power transmission wires are protected from being broken safely, the power transmission wires are prevented from being corroded by seawater, meanwhile, the flexibility and the strength of the cable 2 are enhanced, and the cable 2 plays a role in connection and fixation of the floating power generation device 100 when serving as a power transmission line.
Referring to fig. 3 and 4, the floating power generation device 100 comprises a plurality of hollow floating devices 2 and a power generator 1, wherein the hollow floating devices 2 are uniformly arranged outside the power generator 1 in a protruding manner, and the interior of the hollow floating devices 2 is a hollow structure to provide sufficient buoyancy for the floating power generation device 100 to ensure that the power generator 1 floats on the sea level; the hollow floating device 2 is in a fan blade shape and receives wave impact and drives the generator 1 to rotate.
The generator 1 comprises a rotor 13, a stator 12, a stator shaft 11 and a shell 14, wherein the stator 12 is sleeved on the stator shaft 11, the rotor 13 is embedded in the shell 14 and rotates around the stator 12, and the rotor 13 is connected with the hollow floating device 2 through the shell 14. The stator shaft 11 and the stator 12 are fixed and do not rotate, the cable 2 is connected to the stator shaft 11, the stator 12 and the rotor 13 are wrapped in the shell 14, two ends of the stator shaft 11 protrude out of the shell 11 through the waterproof bearings 15, the waterproof bearings 15 enable the stator 12 and the rotor 13 inside not to be corroded by seawater, and the shell 14 is enabled to rotate flexibly. When waves impact the floating power generation device 100, the fan-blade-shaped hollow floating devices 2 are pushed, and the waves sequentially push the hollow floating devices 2 on the shell 14 to rotate, so that the shell 14 and the rotor 13 inside the shell are driven to rotate, and the rotation between the rotor 13 and the stator 12 generates a potential difference, so that the generator 1 generates electric energy.
Referring to fig. 1 and 5, the power generating equipment fixing device 4 includes a fixing bracket 41, a cable retractor 42 and a pulley 43, the fixing bracket 41 is erected at the bottom and fixed on the seabed, the height of the fixing bracket 41 is determined according to the actual installation condition, the cable retractor 42 is arranged in the fixing bracket 41, the pulley 43 is arranged at the top end of the fixing bracket 41, and the cable 2 is connected with the cable retractor 42 through the pulley 43. The cable 2 is wound on the cable expansion device 42, the cable 2 can be released or tightened through rotation, the power generation device fixing device 4 fixes the floating power generation device 100 through the cable 2, when tide rising or tide falling occurs, the cable expansion device 42 automatically adjusts, the cable 2 is released or tightened, and a plurality of floating power generation devices 100 in the same group are ensured to float on the sea level in a row.
Referring to fig. 1, the submarine cable 5 is further provided, and the submarine cable 5 is buried under the seabed, has one end connected to the cable 2 on the cable expansion device 42 and the other end connected to a substation on the land, and transmits tidal power to the power grid.
The invention also provides a method for generating power by using the seawater tidal energy, which comprises the following steps:
step 1, when tide rises, the floating power generation device is influenced by tide lifting, and the cable expansion device releases a cable wound on the cable expansion device, so that the floating power generation device floats on the sea level;
And 4, when the floating power generation device is influenced by the descending of tide in the tide falling process, the cable expansion device can tighten the cable wound on the cable expansion device, so that the floating power generation device floats on the sea level.
Preferably, the step 1 of generating power using seawater tidal energy further comprises the steps of:
Preferably, the step 4 further comprises the steps of:
42, transmitting the reduced buoyancy pulling force of the floating power generation device 100 to a cable expansion device 42 by the cable 2 through a pulley 43;
43, automatically tightening and winding the cable 2 wound on the cable expansion device 42 according to the set buoyancy range;
after the cable 2 is tightened, step 44, the cable 2 tensions the floating power plant 100 so that it is aligned and continues to float on the sea surface, keeping the optimal position facing the tidal waves.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A power generation structure by using seawater tidal energy is arranged on a seabed beside a sea and floats on the sea level, and power generation is carried out by using tidal wave energy, and the power generation structure is characterized in that: the floating power generation device comprises a plurality of floating power generation devices, cables and a plurality of power generation device fixing devices, wherein the power generation device fixing devices are erected on a seabed, the floating power generation devices float on the sea level, the cables connect the floating power generation devices in series, and two ends of the floating power generation devices are connected to the power generation device fixing devices.
2. A structure for generating electricity using tidal energy of seawater according to claim 1, wherein: the floating power generation device comprises a plurality of hollow floating devices and a power generator, and the hollow floating devices are uniformly and convexly arranged outside the power generator.
3. A structure for generating electricity using tidal energy of seawater according to claim 1, wherein: the power generation equipment fixing device comprises a fixing support, a cable expansion device and a pulley, wherein the fixing support is erected on the seabed, the cable expansion device is arranged in the fixing support, the pulley is arranged at the top end of the fixing support, the cable is connected with the cable expansion device through the pulley, and the cable expansion device releases or tightens the cable through rotation to ensure that the floating power generation device floats on the sea level.
4. A structure for generating electricity using tidal energy of seawater according to claim 2, wherein: the generator comprises a rotor, a stator shaft and a shell, wherein the stator is sleeved on the stator shaft, the rotor is embedded in the shell and rotates around the stator, and the rotor is connected with the hollow floating device through the shell.
5. A structure for generating electricity using tidal energy of seawater according to claim 2, wherein: the hollow floating device is of a hollow structure, so that the generator floats on the sea level.
6. A structure for generating electricity using tidal energy of seawater according to claim 2, wherein: the hollow floating device is in a fan blade shape, receives wave impact and drives the generator to rotate.
7. A structure for generating electricity using tidal energy of seawater according to claim 3, wherein: the submarine power cable is buried under the seabed, one end of the submarine power cable is connected with the cable on the cable telescopic device, and the tidal power generation electric energy is transmitted out.
8. A method for generating power by using seawater tidal energy is characterized in that: the method comprises the following steps:
step 1, when tide rises, the floating power generation device is influenced by tide lifting, and the cable expansion device releases a cable wound on the cable expansion device, so that the floating power generation device floats on the sea level;
step 2, when the forward waves pass through the floating type power generation device, the hollow floating device is pushed to rotate, and the generator is driven to generate power to generate electric energy;
step 3, when the forward waves are removed, the floating power generation device is reversed, the generator automatically idles and does not generate electric energy, and the generator rotates to generate electric energy again after the forward waves of the next wave pass through;
and 4, when the floating power generation device is influenced by the descending of tide in the tide falling process, the cable expansion device can tighten the cable wound on the cable expansion device, so that the floating power generation device floats on the sea level.
9. A method for generating power by using seawater tidal energy is characterized in that: the step 1 further comprises the following steps:
step 11, when tide rises, the floating power generation device is influenced by the tide to generate an upward lifting trend, and the generated buoyancy is transmitted to the cable;
step 12, the cable transmits the lifting buoyancy generated by the floating power generation device to the cable expansion device through the pulley;
step 13, automatically releasing the cable wound on the cable expansion device according to the set buoyancy range;
and 14, after releasing the cable, continuously floating the floating power generation device on the sea level.
10. A method for generating power by using seawater tidal energy is characterized in that: the step 4 further comprises the following steps:
step 11, when the tide is ebb, the floating power generation device is influenced by the tide to generate a descending trend, and the buoyancy pulling force borne by the cable is reduced;
step 12, the cable transmits the pulling force of the floating power generation device with reduced buoyancy to the cable expansion device through a pulley;
step 13, automatically tightening and winding the cable on the cable expansion device according to the set buoyancy range;
step 14, after the cable is tightened, the floating power generation device is tensioned by the cable, so that the floating power generation device is arranged in a line and continuously floats on the sea level.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110098801.6A CN112761855A (en) | 2021-01-25 | 2021-01-25 | Structure and method for generating power by using seawater tidal energy |
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| CN202110098801.6A CN112761855A (en) | 2021-01-25 | 2021-01-25 | Structure and method for generating power by using seawater tidal energy |
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| CN202110098801.6A Pending CN112761855A (en) | 2021-01-25 | 2021-01-25 | Structure and method for generating power by using seawater tidal energy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022197353A1 (en) * | 2021-03-19 | 2022-09-22 | Dolenc Theodore | Apparatus for converting the energy of ocean waves |
| CN116344105A (en) * | 2023-04-06 | 2023-06-27 | 温州新印像电气有限公司 | High-altitude swing-reducing cable |
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| CN1948745A (en) * | 2006-12-01 | 2007-04-18 | 曹庆伟 | Float rotation power generation |
| CN102345549A (en) * | 2010-08-03 | 2012-02-08 | 杨春义 | Floating wheel type water turbine |
| JP2015017550A (en) * | 2013-07-11 | 2015-01-29 | 株式会社 エンチ | Ocean flow power generator |
| CN107642453A (en) * | 2017-04-28 | 2018-01-30 | 李广明 | A kind of power generation module group and TRT, the generating set using the power generation module group |
| CN109723599A (en) * | 2019-01-09 | 2019-05-07 | 中国石油大学(华东) | A kind of float-type Wave energy electric generator of remote controlled lifting |
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2021
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1948745A (en) * | 2006-12-01 | 2007-04-18 | 曹庆伟 | Float rotation power generation |
| CN102345549A (en) * | 2010-08-03 | 2012-02-08 | 杨春义 | Floating wheel type water turbine |
| JP2015017550A (en) * | 2013-07-11 | 2015-01-29 | 株式会社 エンチ | Ocean flow power generator |
| CN107642453A (en) * | 2017-04-28 | 2018-01-30 | 李广明 | A kind of power generation module group and TRT, the generating set using the power generation module group |
| CN109723599A (en) * | 2019-01-09 | 2019-05-07 | 中国石油大学(华东) | A kind of float-type Wave energy electric generator of remote controlled lifting |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022197353A1 (en) * | 2021-03-19 | 2022-09-22 | Dolenc Theodore | Apparatus for converting the energy of ocean waves |
| US11542911B2 (en) | 2021-03-19 | 2023-01-03 | Theodore Dolenc | Apparatus for converting the energy of ocean waves |
| CN116344105A (en) * | 2023-04-06 | 2023-06-27 | 温州新印像电气有限公司 | High-altitude swing-reducing cable |
| CN116344105B (en) * | 2023-04-06 | 2024-01-09 | 固达电线电缆(集团)有限公司 | High-altitude swing-reducing cable |
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