CN203463220U - Overtopping wave energy convertor - Google Patents

Overtopping wave energy convertor Download PDF

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Publication number
CN203463220U
CN203463220U CN201320449251.9U CN201320449251U CN203463220U CN 203463220 U CN203463220 U CN 203463220U CN 201320449251 U CN201320449251 U CN 201320449251U CN 203463220 U CN203463220 U CN 203463220U
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China
Prior art keywords
wave energy
wet pit
unrestrained
water
water turbine
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Withdrawn - After Issue
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CN201320449251.9U
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Chinese (zh)
Inventor
刘臻
史宏达
韩治
郭云霞
徐照妍
王安忆
卢天鹤
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Ocean University of China
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Ocean University of China
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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
    • Y02E10/20—Hydro energy
    • 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 utility model relates to an overtopping wave energy convertor with high efficiency and reliability. The overtopping wave energy convertor comprises a wave energy collection system, a power generation system and an automatic start and stop electric control system. The wave energy collection system comprises a reservoir and a wave leading table, the wave leading table is fixedly connected on the outer side of the reservoir, the power generation system comprises a water outlet tank, a water turbine and a power generator, one end of the water outlet tank is positioned in a hollow structure at the bottom of the reservoir, the other end of the water outlet tank is positioned on the outer side of the reservoir, the water turbine is positioned in the water outlet tank, the power generator is positioned above the water turbine, the water turbine is connected with the power generator through a rotating shaft, the automatic start and stop electric control system is arranged on a working platform and comprises a counterweight, a valve and an electric control box, the electric control box comprises a power supply, a float switch and a lifting motor, and the lifting motor is connected with the valve through a pulley and a cable. Dynamic energy storage and stable power output of the overtopping wave energy convertor are initiatively realized, and wave energy utilization rate and conversion efficiency are greatly increased.

Description

More unrestrained formula Wave energy electric generator
Technical field
The utility model relates to the electricity generating device that utilizes wave energy, particularly a kind of more unrestrained formula Wave energy electric generator that has high efficiency and high reliability concurrently.
Background technique
At present, mainly there is following problem in more unrestrained formula wave energy generating set in use: safety reliability and wave energy conversion ratio can not be taken into account, and construction cost is higher, is subject to landform or sea conditions restriction stronger, can not realize well scale, commercial application; Be subject to the impact that wave is high larger, generate electricity unstable.
Application number a kind of floating cofferdam type wave generating set that has been 200810121813.0 Patent Application Publication, when it utilizes tiding, the potential energy of wave and kinetic energy, change into electric energy by hydraulic turbine generator.Its defect is: Wave energy electric generator parts are too complicated, and maintenance is inconvenient, and it floats on sea, poor reliability, and wave energy low conversion rate, is difficult to realize practical application.
Model utility content
For solving the problems of the technologies described above, the utility model provides the more unrestrained formula Wave energy electric generator of a kind of high efficiency, high reliability, power generation stabilization.
The technical solution of the utility model is: a kind of more unrestrained formula Wave energy electric generator, comprises wave energy collecting system, power generation system and certainly open and close automatical control system.
Described wave energy collecting system comprises wet pit and draws unrestrained platform, and wet pit outside is fixedly connected with draws unrestrained platform, and drawing unrestrained platform is that side is the wedge-shaped structure of right-angled triangle, and wave enters in wet pit along drawing unrestrained face of drawing of unrestrained platform.Draw Lang Tai top and be connected with top, wet pit side, draw Lang Tai bottom and tilt to extend to wet pit base plane, draw the unrestrained face gradient of drawing of unrestrained platform and be set to 2:3, be suitable for wave and climb and climb up and over.Wet pit top hollow, be water inlet A, centre is provided with working platform, and working platform is provided with water outlet A, and water outlet A is provided with the valve of controlling water outlet.
Described power generation system comprises effluent trough, water turbine, generator.Effluent trough one end is positioned at wet pit lower hollow structure, and the other end is positioned at wet pit outside.The water inlet B of effluent trough is positioned at the water outlet A below of wet pit, and water turbine is positioned at effluent trough, and generator is positioned at water turbine top, and both connect by rotating shaft.Mode setting up and down can reduce the energy loss in transmission process to greatest extent, improves energy ground conversion efficiency.The water inlet B place of effluent trough arranges guide plate, and the height of guide plate is higher than water turbine, for increasing current potential difference.
Described generator outer installment stuffing box gland, stuffing box gland is fixed on the outside of wet pit.Arranging of stuffing box gland can be avoided the in use erosion of seawater to generator, to extend the working life of generator.
Described rotating shaft arranges axle sleeve outward.
Water outlet B place, described effluent trough bottom is provided with cross baffle plate, and cross baffle plate is provided with bearing, and rotating shaft is fixed by bearing.
Describedly from opening and closing automatical control system, be located on the working platform of wet pit, comprise counterweight, valve and electric control box.Electric control box is fixed on the working platform of wet pit, and counterweight and valve are positioned at electric control box casing, and electric control box top is provided with electrical control circuit.Electrical control circuit comprises power supply, switch and lifting motor, affixed pulley on the output shaft of lifting motor, and pulley is connected with valve by hawser.Electric control box bottom is provided with hole slot, for water inlet, hole slot shape preferred stripe shape.
Described opening and closing automatical control system is provided with position-limit mechanism certainly, comprises position-limited lever and spacing ball; Counterweight top is provided with longitudinal spacing bar, and both sides are provided with cross spacing bar, and hawser is connected with valve through longitudinal spacing bar, and longitudinal spacing bar below, hawser are provided with spacing ball; Counterweight and valve are all positioned at cross spacing bar inner side.Longitudinal spacing bar and spacing ball are for limiting counterweight motion in vertical direction, and cross spacing bar is for limiting counterweight and valve swing in the horizontal direction.
Described electric control box casing is provided with regulator hole, in order to regulate body inside and outside air pressure.
Wet pit not only can prevent that wave from climbing in process toward both sides landing, with the wave energy of catching as much as possible, and is conducive to wave and climbs in process and increase wave height.
Wet pit water outlet A diameter is 1/4 of wet pit water inlet A radial distance.
Described water turbine is axial flow paddle formula water turbine, comprises runner and blade, and its blade is installed on its runner perpendicular to the shaft axis of axial flow paddle formula water turbine, and blade quantity is 4-6 sheet.The axial flow paddle formula water turbine that the technical program provides can, in the poor lower operation of low water head, reduce the requirement of Wave energy electric generator to head.
The beneficial effects of the utility model are: (1) the utility model belongs to fixed Wave energy electric generator, and wave energy utilization ratio is high, and (2) wave energy conversion ratio is higher, go for different sea situations and depth condition, not affected by tidal range, can realize and commercially producing, reduce cost of electricity-generating; (3) water turbine can move under low water head, has reduced the requirement of Wave energy electric generator to head; (4) reliability is high, and the movable part of device is less, and global stability is high, and reliability is good, can take into account reliability of structure and wave energy conversion ratio; (5) can start voluntarily energy accumulation electricity generator according to SEA LEVEL VARIATION, increase power generation stabilization, the dynamic accumulation of energy of more unrestrained type electricity generating device and stable electric power output have been taken the lead in realizing, to more unrestrained formula electricity generating device, be once greatly to improve, make wave-energy power generation form more various, greatly improved wave energy utilization ratio and transformation efficiency.
Accompanying drawing explanation
Fig. 1 is one of overall structure schematic diagram of the present utility model;
Fig. 2 is two of overall structure schematic diagram of the present utility model;
Fig. 3 is fragmentary cross-sectional view of the present utility model;
Fig. 4 is the schematic diagram of power generation system in the utility model;
Fig. 5 is the schematic diagram of water turbine in the utility model;
Fig. 6 is from opening and closing one of structural representation of automatical control system in the utility model;
Fig. 7 be in the utility model from open and close automatical control system structural representation two;
Fig. 8 is from the circuit diagram that opens and closes automatical control system in the utility model.
Wherein, 101-wet pit, 102-draw unrestrained platform, 103-draw unrestrained face, 104-water inlet A, 105-working platform, 106-water outlet A; 201-generator, 202-effluent trough, 203-rotating shaft, 204-water turbine, 205-guide plate, 206-cross baffle plate, 207-water outlet B, 208-water inlet B, 209-stuffing box gland, 210-blade, 211-runner; 301-electric control box, 302-valve, 303-counterweight, 304-hawser, 305-spacing ball, 306-longitudinal spacing bar, 307-cross spacing bar, 308-lifting motor, 309-switch, 310-pulley, 311-power supply, 312-electric control box top box plate, 313-hole slot, 314-regulator hole.
Embodiment
Below in conjunction with embodiment, illustrate the utility model.
Embodiment 1:
Referring to Fig. 1-Fig. 8, the utility model comprises wave energy collecting system, power generation system and certainly opens and closes automatical control system.Wave energy collecting system comprises wet pit 101 and draws unrestrained platform 102, draws the wedge-shaped structure that unrestrained platform 102 is right-angled triangle for side, and wave enters in wet pit 101 along drawing unrestrained face 103 of drawing of unrestrained platform 102.Wet pit 101 outsides are fixedly connected with draws unrestrained platform 102, drawing unrestrained platform 102 tops is connected with wet pit 101 tops, side, draw unrestrained platform 102 bottoms and tilt to extend to wet pit 101 base plane, draw unrestrained face 103 gradients of drawing of unrestrained platform 102 and be set to 2:3, be suitable for wave and climb and climb up and over.Wet pit 101 top hollows, be water inlet A 104, centre is provided with working platform 105, and working platform 105 is provided with water outlet A 106, and water outlet B 106 is provided with the valve 302 of controlling water outlet.Power generation system comprises effluent trough 202, water turbine 204, generator 201.Effluent trough 202 one end are positioned at wet pit 101 lower hollow structures, and the other end is positioned at wet pit 101 outsides.The water inlet B 208 of effluent trough 202 is positioned at water outlet A 106 belows of wet pit 101, and water turbine 204 is positioned at effluent trough 202, and generator 201 is positioned at water turbine 204 tops, and both connect by rotating shaft 203.Mode setting up and down can reduce the energy loss in transmission process to greatest extent, improves energy ground conversion efficiency.Water outlet B 207 places of effluent trough 202 arrange guide plate 205, and the height of guide plate 205 is higher than water turbine 204, for increasing current potential difference.Generator 201 outer installment stuffing box glands 209, stuffing box gland 209 is fixed on the outside of wet pit 101.Arranging of stuffing box gland 209 can be avoided the in use erosion of seawater to generator 201, to extend the working life of generator 201.The outer axle sleeve that arranges of rotating shaft 203.Effluent trough 202 bottom water outlet B 207 places are provided with cross baffle plate 206, and cross baffle plate 206 is provided with bearing, and rotating shaft 203 is fixed by bearing.From opening and closing automatical control system, be located on the working platform 105 of wet pit 101, comprise counterweight 303, valve 302 and electric control box 301.Electric control box 301 is fixed on the working platform 105 of wet pit 101, and counterweight 303, valve 302 are positioned at electric control box 301 casings, and electric control box 301 tops are provided with electrical control circuit.Electrical control circuit comprises power supply 311, switch 309 and lifting motor 308, affixed pulley 310 on the output shaft of lifting motor 308, and pulley 310 is connected with valve 302 by hawser 304.Electric control box 301 bottoms are provided with bar shaped hole slot 313, for water inlet.Electric control box 301 casings are provided with regulator hole 314, in order to regulate body inside and outside air pressure.
Wet pit 101 not only can prevent that wave from climbing in process toward both sides landing, with the wave energy of catching as much as possible, and is conducive to wave and climbs in process and increase wave height.
Wet pit water outlet A 106 diameters are 1/4 of wet pit water inlet A 104 radial distances.
Working procedure is as follows:
Wave enters wet pit 101 along drawing unrestrained face 103 of drawing of unrestrained platform 102, and enters electric control box 301 inside by the hole slot 313 of electric control box 301 bottoms, and water level rises gradually, and when water level reaches designated water level, switch 309 is communicated with, lifting motor 308 energisings.The output shaft band movable pulley 310 of lifting motor 308 rotates, and pulley 310 is by hawser 304 poppets 302, and the water outlet A 106 of wet pit 101 is opened water outlet.In this process, more unsettled incident wave energy is converted to the potential energy of wet pit 101 interior water bodys.
Water outlet acts on water turbine 204 through the guide plate 205 of effluent trough 202, and water turbine 204 work drive rotating shaft 203 to rotate, final drive generator 201 generatings of rotating shaft 203.Water is discharged through the water outlet B 207 of effluent trough 202.Current from top to bottom impact on the blade 210 of water turbine 204, and under the effect of water flow impact pressure, blade 210 rotations, drive the rotating shaft 203 being attached thereto to rotate together, thereby drive generator 201 work, finally convert electric energy to, and water is discharged along water outlet B 207.
When hawser 304 is promoted to spacing ball 305 and contacts with longitudinal spacing bar 306, hawser 304 drives counterweight 303 to rise simultaneously, until rise to longitudinal spacing bar 306, contacts with electric control box top box plate 312.
After wet pit 101 water outlets, water level declines, water level drop to setting close water level time, switch 309 disconnects, lifting motor 308 power-off.Water level decline buoyancy reduces, and counterweight 303 falls after rise under the effect of gravity, and meanwhile, valve 302 is followed counterweight 303 and fallen after rise under the effect of spacing ball 305, until close wet pit 101 water outlet A 106.
If wave continues water inlet, in wet pit 101, keep high water level, water turbine 204 continues generating always, when wet pit 101 water inlets are when less, electricity generating device can suspend generating under the control that certainly opens and closes automatical control system, until the interior water level of wet pit 101 reaches setting numerical value.
Embodiment 2:
Outside lower difference, other are with embodiment 1.
Referring to Fig. 5, water turbine 204 is axial flow paddle formula water turbine, comprises runner 211 and blade 210, and its blade 210 is installed on its runner 211 perpendicular to the shaft axis of axial flow paddle formula water turbine, and blade 210 quantity are 4-6 sheet.The axial flow paddle formula water turbine 204 that the technical program provides can, in the poor lower operation of low water head, reduce the requirement of Wave energy electric generator to head.

Claims (9)

1. a more unrestrained formula Wave energy electric generator, is characterized in that, comprises wave energy collecting system, power generation system and certainly opens and closes automatical control system;
Its intermediate wave energy collecting system comprises wet pit (101) and draws unrestrained platform (102), wet pit (101) outside is fixedly connected with draws unrestrained platform (102), draw the wedge-shaped structure that unrestrained platform (102) is right-angled triangle for side, drawing unrestrained platform (102) top is connected with wet pit (101) top, side, draw unrestrained platform (102) bottom and tilt to extend to wet pit (101) base plane, wet pit (101) top hollow, for water inlet A (104), centre is provided with working platform (105), working platform (105) is provided with water outlet A (106), water outlet A (106) is provided with valve (302),
Described power generation system comprises effluent trough (202), water turbine (204) and generator (201); Effluent trough (202) one end is positioned at the lower hollow structure of described wet pit (101), and the other end is positioned at wet pit (101) outside; The water inlet B of effluent trough (208) is positioned at water outlet A (106) below of described wet pit (101), water turbine (204) is positioned at effluent trough (202), generator (201) is positioned at water turbine (204) top, both connect by rotating shaft (203), the water inlet B (208) of effluent trough (202) locates to arrange guide plate (205), and the height of guide plate (205) is higher than water turbine (204);
Described upper from the working platform (105) that opens and closes automatical control system and be located at wet pit (101), comprise counterweight (303), valve (302) and electric control box (301); Described electric control box (301) is fixed on the working platform (105) of described wet pit (101), counterweight (303) and valve (302) are positioned at electric control box (301) casing, electric control box (301) top is provided with electrical control circuit, electrical control circuit comprises power supply (311), switch (309) and lifting motor (308), affixed pulley (310) on the output shaft of described lifting motor (308), pulley (310) is connected with described valve (302) by hawser (304), and electric control box (301) bottom is provided with hole slot (313).
2. more unrestrained formula Wave energy electric generator according to claim 1, is characterized in that, described opening and closing automatical control system is provided with position-limit mechanism certainly, comprises position-limited lever and spacing ball (305); Described counterweight (303) top is provided with longitudinal spacing bar (306), both sides are provided with cross spacing bar (307), described hawser (304) is connected with valve (302) through longitudinal spacing bar (306), described longitudinal spacing bar (306) below, hawser (304) are provided with spacing ball (305), and counterweight (303) and valve (302) are all positioned at cross spacing bar (307) inner side.
3. more unrestrained formula Wave energy electric generator according to claim 1, it is characterized in that, described effluent trough (202) bottom water outlet B (207) locates to be provided with cross baffle plate (206), and cross baffle plate (206) is provided with bearing, and rotating shaft (203) is fixed by bearing.
4. more unrestrained formula Wave energy electric generator according to claim 1, is characterized in that, described generator (201) outer installment stuffing box gland (209), and stuffing box gland (209) is fixed on the outside of wet pit (101).
5. more unrestrained formula Wave energy electric generator according to claim 1, is characterized in that, the outer axle sleeve that arranges of described rotating shaft (203).
6. more unrestrained formula Wave energy electric generator according to claim 1, it is characterized in that, described water turbine (204) is axial flow paddle formula water turbine, comprise runner (211) and blade (210), its blade (210) is installed on its runner (211) above perpendicular to the shaft axis of water turbine (204), and blade (210) quantity is 4-6 sheet.
7. more unrestrained formula Wave energy electric generator according to claim 1, is characterized in that, described hole slot (313) is shaped as bar shaped.
8. more unrestrained formula Wave energy electric generator according to claim 1, is characterized in that, described wet pit water outlet A (106) diameter is 1/4 of wet pit water inlet A (104) radial distance.
9. more unrestrained formula Wave energy electric generator according to claim 1, is characterized in that, described electric control box (301) casing is provided with regulator hole (314).
CN201320449251.9U 2013-07-26 2013-07-26 Overtopping wave energy convertor Withdrawn - After Issue CN203463220U (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103343727A (en) * 2013-07-26 2013-10-09 中国海洋大学 Overtopping wave energy power generation device
CN105257467A (en) * 2015-11-26 2016-01-20 天津大学前沿技术研究院有限公司 Wave-overtopping type wave power generation buoy
CN107191316A (en) * 2017-05-22 2017-09-22 上海交通大学 Tuning for Controllable Pitch Propeller turbine wave transducer system
CN109109730A (en) * 2018-08-22 2019-01-01 河海大学常州校区 A kind of caravan wave resistance water tank of included power generator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103343727A (en) * 2013-07-26 2013-10-09 中国海洋大学 Overtopping wave energy power generation device
CN103343727B (en) * 2013-07-26 2015-05-20 中国海洋大学 Overtopping wave energy power generation device
CN105257467A (en) * 2015-11-26 2016-01-20 天津大学前沿技术研究院有限公司 Wave-overtopping type wave power generation buoy
CN107191316A (en) * 2017-05-22 2017-09-22 上海交通大学 Tuning for Controllable Pitch Propeller turbine wave transducer system
CN109109730A (en) * 2018-08-22 2019-01-01 河海大学常州校区 A kind of caravan wave resistance water tank of included power generator
CN109109730B (en) * 2018-08-22 2021-04-06 河海大学常州校区 Wave-proof water tank of motor home with power generation device

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