CN110469451B - Tidal current energy conversion device for comprehensively utilizing linear rotary power generation - Google Patents
Tidal current energy conversion device for comprehensively utilizing linear rotary power generation Download PDFInfo
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- CN110469451B CN110469451B CN201910806770.8A CN201910806770A CN110469451B CN 110469451 B CN110469451 B CN 110469451B CN 201910806770 A CN201910806770 A CN 201910806770A CN 110469451 B CN110469451 B CN 110469451B
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- power generation
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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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
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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)
- Power Engineering (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 belongs to the field of tidal current energy power generation, and particularly relates to a tidal current energy conversion device for comprehensively utilizing linear rotary power generation. According to the invention, through the design of combining the hydraulic turbine generator and the linear generator, the overall energy capture efficiency of the power generation device is greatly improved, the kinetic energy of the residual water flow at the power generation part of the hydraulic turbine is fully utilized, and the transportation efficiency is improved. The invention adopts the design of double water turbines, and the design of left-right front-back asymmetry ensures the full conversion of tidal current energy, simultaneously makes the whole structure more compact, reduces the volume of the device, thereby more tidal current energy conversion devices can be arranged in the unit sea area to obtain more electric energy. The tidal current energy power generation device has good energy capture efficiency, and compared with the existing tidal current energy power generation device, the integration degree and the volume of the power generation device are more advantageous, and the tidal current energy power generation device has wide development prospect and popularization prospect.
Description
Technical Field
The invention belongs to the field of tidal current energy power generation, and particularly relates to a tidal current energy conversion device for comprehensively utilizing linear rotary power generation.
Background
With the increasing demand of human resources, the consumption of non-renewable resources such as petroleum, coal, natural gas and the like is increasing. Research and utilization of renewable resources are urgently needed for sustainable development of human beings. Ocean energy is the highest in energy density in the renewable energy field, and comprises wave energy, tidal energy, ocean current energy, seawater temperature difference energy, seawater salt difference energy and the like, and the ocean energy can be utilized due to the technical progress.
Wherein tidal current energy has great utilization advantages as one of ocean energies. Tidal current energy refers primarily to the relatively steady flow in subsea waterways and straits and the regular flow of seawater due to tides. And tidal current energy has little influence on the environment in the development process and exists in the form of mechanical energy, and is one of the highest-grade ocean energies. China coastal belongs to one of the areas with the largest tidal current energy power density in the world, and tidal current energy has wide development and use prospects. Offshore and offshore devices utilizing other ocean energy exist in the world, however, most of the power generation devices utilizing wave energy which are operated at present have the problems of low equipment reliability and unstable power generation efficiency; the power generation device utilizing the seawater temperature difference energy also has the problems of large heat exchange area, low heat energy extraction efficiency and high construction cost. The power generation conversion technology utilizing tidal current energy has the advantages of high development and application advantages and wide adaptability due to the advantages of large total reserve, environment-friendly operation and the like.
At present, the main form of utilizing tidal current energy to generate electricity is single large-scale water turbine electricity generation, however, the device has the disadvantages of overlarge volume and low energy capture efficiency.
Disclosure of Invention
The invention aims to provide a tidal current energy conversion device for comprehensively utilizing linear rotary power generation.
The purpose of the invention is realized by the following technical scheme: comprises a first section power generation part and a tail section power generation part; the first section of the power generation part comprises a water inlet channel shell, and hydraulic generators are respectively arranged on the front right side and the rear left side in the water inlet channel shell; the water inlet is arranged at the head end of the water inlet channel shell, and the water outlet is arranged above the tail part of the water inlet channel shell; the tail section power generation part is arranged at the tail end of the first section power generation part, a tension film for separating the inner spaces of the two power generation parts is arranged inside the joint of the tail section power generation part and the first section power generation part, and a linear generator connected with the tension film is arranged inside the tail section power generation part
The present invention may further comprise:
the linear generator comprises a linear generator stator and a linear engine rotor; the linear generator stator comprises a stator core; the upper end of the stator core is provided with an opening, and the tail end of the stator core is fixed at the tail end of the tail section power generation part; a cavity is formed in the stator core close to the bottom end, and a spring is installed in the cavity; the stator core is provided with a circular groove along the axis near the inside of the opening end, and a coil winding is arranged in the circular groove; the linear generator rotor comprises a straight shaft with a base, a magnetic yoke is sleeved on the straight shaft, magnetic poles are sleeved outside the magnetic yoke, and the magnetic poles are arranged adjacently in an opposite polarity; the upper end of the straight shaft is connected with the tension film, and the base of the straight shaft is connected with the spring in the cavity inside the stator core.
The upper end of the straight shaft is provided with a magnet, the magnet at the upper end of the straight shaft is connected with one side of the tension film, the other side of the tension film is also provided with a magnet, and the tension film is fixed between the magnets at the two sides.
The water inlet at the front end of the water inlet channel shell is a horn-shaped opening.
The water outlet of the water inlet channel shell is provided with a cluster guide plate.
The hydraulic generator comprises a hydraulic generator stator and a hydraulic turbine sleeved on the hydraulic generator stator; two ends of the hydraulic generator stator are respectively fixed on two side walls of the water inlet channel shell, and a coil winding is arranged on the hydraulic generator stator; a semi-annular permanent magnet is attached to the inside of the water turbine; and the water inlet channel shell is provided with a water turbine outer cover.
The invention has the beneficial effects that:
according to the invention, through the design of combining the hydraulic turbine generator and the linear generator, the overall energy capture efficiency of the power generation device is greatly improved, the kinetic energy of the residual water flow at the power generation part of the hydraulic turbine is fully utilized, and the transportation efficiency is improved. The invention adopts the design of double water turbines, and the design of left-right front-back asymmetry ensures the full conversion of tidal current energy, simultaneously makes the whole structure more compact, reduces the volume of the device, thereby more tidal current energy conversion devices can be arranged in the unit sea area to obtain more electric energy. The tidal current energy power generation device has good energy capture efficiency, and compared with the existing tidal current energy power generation device, the integration degree and the volume of the power generation device are more advantageous, and the tidal current energy power generation device has wide development prospect and popularization prospect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of a hydro-generator stator of the present invention.
Fig. 3 is a schematic view of a hydro-generator mover of the present invention.
Fig. 4 is a sectional view of a hydro-generator mover of the present invention.
Fig. 5 is a schematic view of the turbine housing of the present invention.
Fig. 6 is a schematic view of a tension film of the present invention.
Fig. 7 is a cross-sectional view of a linear generator of the present invention.
Fig. 8 is a schematic view of a mover of a linear generator according to the present invention.
Fig. 9 is a cross-sectional view of a linear generator stator of the present invention.
FIG. 10 is a schematic diagram of a strong magnet according to the present invention.
FIG. 11 is a schematic diagram of a tail section power generation section of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 11, the present invention provides a technical solution: a tidal current energy conversion device comprehensively utilizing linear rotary power generation comprises a first-section power generation part 1 and a tail-section power generation part 2, wherein the rear end of the first-section power generation part 1 is in seamless butt joint with the front end of the tail-section power generation part 2; the first section of the power generation part 1 comprises a water inlet channel shell 11, a hydraulic generator 12, a cluster guide plate 13, a hydraulic turbine housing 14 and a water outlet 15, wherein the hydraulic generator 12 is asymmetrically distributed on two sides inside the water inlet channel shell 11 and is respectively distributed on the right front side and the left rear side of the water inlet channel shell 11, and the cluster guide plate 13 is installed at the water outlet 15 and is bent towards the inside of the water inlet channel shell 11; the tail section power generation part comprises a tail section power generation part shell 21, a linear generator 22, a tension film 23 and a strong magnet 24, the outermost end surface of the tension film 23 and the end surface of the tail section power generation part shell 21 are in the same plane, the axis of the linear generator 22 is perpendicular to the plane of the tension film 23, a linear generator rotor 221 is connected with the tension film 23, and a linear generator stator 222 is connected with the bottom in the tail section power generation part shell 21;
the front half part of the water inlet channel shell 11 is horn-shaped, the rear half part is cuboid-shaped, and the right front side and the left rear side of the cuboid-shaped rear half part of the water inlet channel shell 11 are respectively provided with a large opening to provide an installation space for the hydraulic generator 12.
The hydro-generator 12 includes a hydro-generator mover 121 and a hydro-generator stator 122, a semi-annular permanent magnet 1211 is attached inside the hydro-generator mover 121, a hydro-generator coil winding 1221 is installed on the hydro-generator stator, and the axis of the hydro-generator stator 122 is fixed on two side walls of the water inlet channel housing 11.
The section of the cluster guide plate 13 is in a half-moon tooth shape and is symmetrically arranged at the water outlet 15 at the rearmost end of the water inlet channel shell 11.
The water outlet 15 is a square opening symmetrically distributed on the side wall of the tail part of the water inlet channel shell 11.
The linear generator 22 comprises a linear generator rotor 221, a linear generator stator 222, a rotor bottom spring 223 and a coil winding 224, wherein the linear generator stator comprises a stator iron core 222; the stator core 222 is provided with circular grooves 2221 at equal intervals along the axial line near the opening end, a plurality of coil windings are arranged in the circular grooves, a cylindrical cavity 2222 is formed inside the stator core near the bottom end, a mover bottom spring 223 is placed in the cavity, and a long and thin cylindrical groove 2223 for the mover to reciprocate is formed in the whole stator core 222 along the central axial line; the linear generator rotor 221 is mainly a slender straight shaft 2211, a magnetic yoke 2212 is sleeved on the straight shaft, a circular magnetic pole 2213 is sleeved on the magnetic yoke, the magnetic poles are arranged adjacently in an opposite manner, a cylindrical base 2214 is arranged at the bottom of the linear generator rotor 221, and the base is fixedly connected with a rotor bottom spring 223.
The linear generator mover 221 has a screw 22111 attached to the top end of the straight shaft 2211 and engaged with the screw hole 242 of the lower portion 243 of the ferromagnetic member, and the tension film 23 is fixed to the straight shaft 2211 of the mover 221 by the magnetic force between the upper portion 241 and the lower portion 243 of the ferromagnetic member 24.
The strong magnet 24 is divided into an upper portion 241 and a lower portion 243, wherein a lower end surface of the lower portion is opened inward at a central axis with a screw hole 242, and the tension film 23 is fixed between the upper portion 241 and the lower portion 243.
The working principle of the invention is as follows: firstly, the tidal current enters the water inlet channel through the front end of the horn-shaped water inlet channel shell 11, then the tidal current sequentially passes through the hydraulic generators 12 on the right front side and the left rear side, the tidal current energy is converted into kinetic energy of the hydraulic generator rotor 121, and the coils on the hydraulic generator stator 122 cut magnetic induction lines to generate electric energy. The residual water flow after passing through the two water turbines impacts the tension film 23 of the tail section power generation part, the tension film 23 deforms to drive the rotor 221 of the linear generator 22 to move axially, so that the linear generator 22 works to generate electric energy, the impacted water flow flows out through the water outlet 15, and the power generation work repeats the process along with the arrival of the next tide.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through the design of combining the hydraulic turbine generator and the linear generator, the overall energy capture efficiency of the power generation device is greatly improved, and the kinetic energy of the residual water flow of the power generation part of the hydraulic turbine is fully utilized. The transportation efficiency is improved, and the method has wide market prospect and application prospect.
The invention adopts the design of double water turbines, and the design of left-right front-back asymmetry ensures the full conversion of tidal current energy, simultaneously makes the whole structure more compact, reduces the volume of the device, thereby more tidal current energy conversion devices can be arranged in the unit sea area to obtain more electric energy.
The tidal current energy power generation device has good energy capture efficiency, and compared with the existing tidal current energy power generation device, the integration degree and the volume of the power generation device are more advantageous, and the tidal current energy power generation device has wide development prospect and popularization prospect.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The utility model provides a tidal current energy conversion equipment who utilizes straight line formula rotation type electricity generation comprehensively which characterized in that: comprises a first section power generation part and a tail section power generation part; the first section of the power generation part comprises a water inlet channel shell, and hydraulic generators are respectively arranged on the front right side and the rear left side in the water inlet channel shell; the water inlet is arranged at the head end of the water inlet channel shell, and the water outlet is arranged above the tail part of the water inlet channel shell; the tail section power generation part is arranged at the tail end of the first section power generation part, a tension film for separating the internal spaces of the two power generation parts is arranged in the connection part of the tail section power generation part and the first section power generation part, and a linear generator connected with the tension film is arranged in the tail section power generation part; the linear generator comprises a linear generator stator and a linear engine rotor; the linear generator stator comprises a stator core; the upper end of the stator core is provided with an opening, and the tail end of the stator core is fixed at the tail end of the tail section power generation part; a cavity is formed in the stator core close to the bottom end, and a spring is installed in the cavity; the stator core is provided with a circular groove along the axis near the inside of the opening end, and a coil winding is arranged in the circular groove; the linear generator rotor comprises a straight shaft with a base, a magnetic yoke is sleeved on the straight shaft, magnetic poles are sleeved outside the magnetic yoke, and the magnetic poles are arranged adjacently in an opposite polarity; the upper end of the straight shaft is connected with the tension film, and the base of the straight shaft is connected with the spring in the cavity inside the stator core; the upper end of the straight shaft is provided with a magnet, the magnet at the upper end of the straight shaft is connected with one side of the tension film, the other side of the tension film is also provided with a magnet, and the tension film is fixed between the magnets at the two sides; the water inlet at the head end of the water inlet channel shell is a horn-shaped opening; a cluster guide plate is arranged at the water outlet of the water inlet channel shell; the hydraulic generator comprises a hydraulic generator stator and a hydraulic turbine sleeved on the hydraulic generator stator; two ends of the hydraulic generator stator are respectively fixed on two side walls of the water inlet channel shell, and a coil winding is arranged on the hydraulic generator stator; a semi-annular permanent magnet is attached to the inside of the water turbine; and the water inlet channel shell is provided with a water turbine outer cover.
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| CN201910806770.8A CN110469451B (en) | 2019-08-29 | 2019-08-29 | Tidal current energy conversion device for comprehensively utilizing linear rotary power generation |
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| CN201910806770.8A CN110469451B (en) | 2019-08-29 | 2019-08-29 | Tidal current energy conversion device for comprehensively utilizing linear rotary power generation |
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| CN110469451B true CN110469451B (en) | 2021-08-20 |
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