CN110374786B - Swing type sea wave power generation device with extrusion pump and control method thereof - Google Patents
Swing type sea wave power generation device with extrusion pump and control method thereof Download PDFInfo
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- CN110374786B CN110374786B CN201910645787.XA CN201910645787A CN110374786B CN 110374786 B CN110374786 B CN 110374786B CN 201910645787 A CN201910645787 A CN 201910645787A CN 110374786 B CN110374786 B CN 110374786B
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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"
- F03B13/18—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" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
- F03B13/1805—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" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem
- F03B13/181—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" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem for limited rotation
- F03B13/182—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" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem for limited rotation with a to-and-fro movement
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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
- F03B15/00—Controlling
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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)
- 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 swing type sea wave power generation device with an extrusion pump and a control method thereof, which are characterized by comprising the following steps: a swing arm at least one end of the swing type sea wave power generation device is connected with a generator through an extrusion pump, an air storage tank and a pneumatic motor; the extrusion pump includes: the swing blade plate, the air bag, the fixing plate, the rotating shaft and the bracket; the rotating shaft is connected with the swing arm; the swing blade plate is fixed on the rotating shaft by taking the rotating shaft as a symmetrical shaft and is vertical to the axis of the rotating shaft; two ends of the rotating shaft respectively penetrate through rotating shaft holes with bearings of the support seats on the two sides and are erected on the support seats; the cross section of the fixing plate is X-shaped and is fixed on the support by taking the rotating shaft as a symmetry axis; the swing blade plate is limited between the crossing parts of the fixed plates by the fixed plates to form four relatively independent swing spaces; the number of the air bags is four, and the four air bags are respectively arranged in each swing space. The swing type wave power generation device reduces energy waste and loss, and greatly improves the performance of the existing swing type wave power generation device.
Description
Technical Field
The invention belongs to the field of new energy power generation equipment, and particularly relates to a swing type sea wave power generation device with an extrusion pump and a control method thereof.
Background
Chinese patent CN201711251476 proposes a swing type wave power generation device, which solves the problems of low power generation efficiency and low energy collection efficiency in surge power generation. However, the energy conversion mechanism provided by the scheme has certain defects: if a scheme of a piston pump or a double-blade rotary pump is adopted, the liquid or gas extrusion principle is that a piston and a sealing ring or double-blade and a sealing ring form a closed space with a cylinder body, and in reciprocating motion, the sealing ring can generate huge friction force with the inner wall of the cylinder body, so that energy loss and abrasion of devices are caused. However, if the flywheel is adopted, a large torque is required to start the flywheel, and the situation that the energy utilization efficiency is low due to the fact that the waves stop surging just before the flywheel rotates may occur.
Disclosure of Invention
Aiming at the defects in the prior art, the invention mainly provides a novel energy conversion mechanism scheme, which adopts a form of an extrusion pump to efficiently convert energy generated by the swing of a blade plate component of a swing type sea wave power generation device into air compression energy (or hydraulic energy) for storage and output for power generation.
The invention specifically adopts the following technical scheme:
the utility model provides a swing type wave power generation device with extrusion pump which characterized in that: a swing arm at least one end of the swing type sea wave power generation device is connected with a generator through an extrusion pump, an air storage tank and a pneumatic motor;
the extrusion pump includes: the swing blade plate, the air bag, the fixing plate, the rotating shaft and the bracket; the rotating shaft is connected with the swing arm; the swing blade plate is fixed on the rotating shaft by taking the rotating shaft as a symmetrical shaft and is vertical to the axis of the rotating shaft; two ends of the rotating shaft respectively penetrate through rotating shaft holes with bearings of the support seats on the two sides and are erected on the support seats; the cross section of the fixing plate is X-shaped and is fixed on the support by taking the rotating shaft as a symmetry axis; the swing blade plate is limited between the crossing parts of the fixed plates by the fixed plates to form four relatively independent swing spaces; the number of the air bags is four, the air bags are respectively arranged in each swing space, and two extrusion surfaces of each air bag are respectively fixed on the swing blade plate and the fixing plate; each air bag is provided with a one-way air inlet and a one-way air outlet;
setting any airbag as an airbag A, setting an adjacent airbag of the airbag A as an airbag B, setting the airbag of the airbag A taking a rotating shaft as a symmetry axis as an airbag C, and setting the adjacent airbag of the airbag C as an airbag D; the one-way air outlets of the air bags A and the air bags C are connected with a first one-way valve; the one-way air outlets of the air bags B and D are connected with a second one-way valve; the one-way air inlets of the air bags A and the air bags C are connected with a third one-way valve; the one-way air inlets of the air bags B and D are connected with a fourth one-way valve; the first one-way valve and the second one-way valve are connected with the air storage tank; and the third one-way valve and the fourth one-way valve are connected with an air filter.
Preferably, the airbag comprises a plurality of lower folding plates hinged through hinges, a plurality of side folding plates hinged through hinges and a flexible film; the flexible film is fixed on the inner sides of the lower folding plate and the side folding plate; the lower folding plate and the side folding plate on the edge are hinged with the swing leaf plate or the fixed plate through hinges.
Preferably, the hinge of the lower folded plate is fixed with a brace at intervals; the flattening length of the brace is less than that of all the lower folded plates; the brace is a carbon fiber rope or a stainless steel hinge.
Preferably, the rotating shaft is connected with a driving gear; the driving gear is meshed with at least two driven gears; each driven gear is connected with a rotating shaft of one extrusion pump through a clutch; the size of each of the extruder pumps is different.
Preferably, the air storage tank is connected with a pneumatic motor through a variable pressure stabilizing valve, and the variable pressure stabilizing valve is connected with a controller; the pneumatic motor is connected with a generator through a gearbox.
Preferably, the first one-way valve and the second one-way valve are connected with a fifth one-way valve through a diverter valve and a first pipeline and a second pipeline, and the fifth one-way valve is connected with the air storage tank; a big-small converter is connected in the second pipeline; the size converter comprises a large pneumatic cylinder and a small coaxial pneumatic cylinder; the outlet ends of the first one-way valve and the second one-way valve are connected with the inlet end of the small pneumatic cylinder, and the inlet end of the fifth one-way valve is connected with the outlet end of the large pneumatic cylinder, or the outlet ends of the first one-way valve and the second one-way valve are connected with the inlet end of the large pneumatic cylinder, and the inlet end of the fifth one-way valve is connected with the outlet end of the small pneumatic cylinder.
Preferably, two ends of the gas storage tank are respectively connected with a first heat exchanger and a second heat exchanger; the first heat exchanger and the second heat exchanger are respectively connected with a low-temperature medium storage tank and a high-temperature medium storage tank; the first heat exchanger is connected with the outlet ends of the first check valve and the second check valve, and the second heat exchanger is connected with the air inlet end of the pneumatic motor.
Preferably, at least one section of the air storage tank is provided with a pressure stabilizing bin; the surge bin includes: the device comprises an air inlet channel, a pressure stabilizing cabin body and an adjusting cavity; an outlet of the air inlet channel is provided with an air plug and an air nozzle which are matched with each other to communicate with the pressure stabilizing cabin body, and the air plug is sleeved on the movable rod; the adjusting cavity is sealed through an air film, and the movable rod penetrates through the air film and is connected with an output shaft of the stepping motor through an adjusting spring in the adjusting cavity; the pressure stabilizing cabin body is provided with an air outlet.
Preferably, the air reservoir is replaced with a hydraulic pump; the pneumatic motor is replaced by a hydraulic motor, and the air filter is replaced by an oil tank; the air bag is replaced by a liquid bag; the one-way air inlet and the one-way air outlet are replaced by a one-way liquid inlet and a one-way liquid outlet.
And one of the control methods of the swing type sea wave power generation device with the extrusion pump is characterized in that: the controller controls the variable pressure maintaining valve to output a given power stably in a given period of time.
And a second control method of the swing type sea wave power generation device with the extrusion pump is characterized in that: the controller controls the variable pressure stabilizing valve to improve the output power in the peak period of power utilization, reduce the output power in the valley period of power utilization, and control the total output power and the input power in unit time to keep balance.
The invention and the optimal scheme thereof provide a brand-new energy conversion and utilization idea, and a novel extrusion pump scheme is designed as a core device for energy conversion, so that the waste and the loss of energy are reduced, the performance of the conventional swing type sea wave power generation device is greatly improved, and the novel swing type sea wave power generation device has a very high application prospect and market value.
In an optimal design scheme, the air compression energy in the air storage tank is controlled and output through the variable pressure stabilizing valve, so that the power generation of voltage stabilization output or peak clipping and valley filling output is realized, and the working range of the swing type sea wave power generation device is expanded.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic diagram of an overall application scenario of an embodiment of the present invention;
FIG. 2 is a perspective view of an embodiment of the present invention illustrating an overall structure of an extrusion pump;
FIG. 3 is a perspective view of the overall structure of the extrusion pump of the embodiment of the present invention, schematically shown in FIG. 2 (in a state where the bracket is not installed);
FIG. 4 is a perspective view of the overall structure of the extrusion pump of the embodiment of the present invention, schematically shown in FIG. 3 (in a state of mounting a bracket);
FIG. 5 is a schematic cross-sectional view of the overall structure of an extruder pump according to an embodiment of the present invention (with two different stations);
FIG. 6 is a schematic view of an air path connection of an extruder pump according to an embodiment of the present invention;
FIG. 7 is a schematic perspective view of a bladder configuration of an embodiment of the present invention, shown generally at 1;
FIG. 8 is a schematic perspective view of a bladder configuration according to an embodiment of the present invention, as shown in FIG. 2;
FIG. 9 is a perspective view of an airbag according to an embodiment of the present invention;
FIG. 10 is a schematic view of a brace mounting location according to an embodiment of the present invention;
FIG. 11 is an exploded view of the overall construction of an extruder pump according to an embodiment of the present invention;
FIG. 12 is a schematic view of a dual extruder pump according to an embodiment of the present invention;
FIG. 13 is a schematic diagram of the overall structure and connection relationship of the embodiment of the present invention;
FIG. 14 is a schematic diagram of a size converter according to an embodiment of the present invention;
FIG. 15 is a block diagram of a size converter according to an embodiment of the present invention, schematically shown in FIG. 2;
FIG. 16 is a block diagram of a size converter according to an embodiment of the present invention;
FIG. 17 is a schematic diagram of a heat exchanger according to an embodiment of the present invention;
FIG. 18 is a schematic structural diagram of a surge bin according to an embodiment of the present invention;
FIG. 19 is a schematic diagram of an overall application scenario of the embodiment of the present invention;
in the figure:
101-a louver assembly; 102-a buoyancy tank; 103-a cable; 104-gravity anchor;
200-an extrusion pump; 201-a scaffold; 202-a rotating shaft; 203-oscillating vane; 204-reinforcing frame; 205-fixing the sideboard; 206-an air bag; 207-a bearing; 208-a flexible membrane; 209-a first one-way valve; 210-a second one-way valve; 211-a third one-way valve; 212-a fourth one-way valve; 213-an air filter; 214-side flaps; 215-lower folded plate; 216-hinge; 217-a carbon fiber mesh; 218-rubber strips; 219-braces; 220-one-way air outlet; 221-one-way air inlet; 230-a drive gear; 231-a first driven gear; 232-a second driven gear; 233-a clutch; 240-pressing strips; 2061-A air bag; 2062-B air bag; 2063-C air bag; 2064-D air bag;
300-an air storage tank; 301-diverter valve; 302-a first conduit; 303-a second conduit; 304-a size converter; 305-a fifth one-way valve; 306-a variable pressure regulator valve; 307-a controller;
401-a pneumatic motor; 402-a generator; 403-a gearbox;
501-big cylinder piston; 502-small cylinder piston; 503-sliding bearings; 504-linkage shaft; 505-vat intake; 506-big cylinder air outlet; 507, a small cylinder air outlet; 508-small cylinder air inlet;
601-a first heat exchanger; 602-a second heat exchanger; 603-a low temperature medium storage tank; 604-high temperature medium storage tank;
701-air lock; 702-an air nozzle; 703-air film cushion; 704-gas film; 705-a surge bin body; 706-lower spring holder; 707-upper spring holder; 708-a nut; 709-screw rod; 710-an adjustment spring; 711-adjusting the cavity; 712-step motor.
Detailed Description
In order to make the features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail as follows:
as shown in fig. 1, it provides a new structure of a swing type wave power generation device, and its main components include: a blade plate assembly 101 for converting the kinetic energy of the sea waves into the kinetic energy of the swing of the blades; the bottom of the support for supporting the louver assemblies 101 is arranged on the floating box 102, the floating box 102 can sink through water absorption, and the drained water rises to adjust the actual height of the louver assemblies 101; the buoyancy tank 102 is secured at sea by gravity anchors via cables 103.
When the paddle assembly 101 swings back and forth, the swing arm drives the rotating shaft 202 of the squeeze pump 200 to complete the movement of the air bag 206.
For the embodiment of the invention, the most important improvement compared with the prior art is that the specific form of the energy conversion mechanism is adjusted, and the main structure comprises: at least one end of the swing type wave power generation device is provided with a swing arm which is connected with a generator 402 through an extrusion pump 200, an air storage tank 300 and an air motor 401.
As shown in fig. 2 to 5 and 10, the squeeze pump 200 includes: swing paddle 203, air bag 206, fixing plate, rotating shaft 202 and bracket 201.
The rotating shaft 202 is connected with the swing arm; the swing blade 203 is fixed on the rotating shaft 202 by taking the rotating shaft 202 as a symmetry axis and is vertical to the axis of the rotating shaft 202; two ends of the rotating shaft 202 respectively penetrate through rotating shaft 202 holes with bearings 207 of the supports at two sides and are erected on the supports; the fixing plate has an X-shaped cross section and is fixed on the support with the rotation shaft 202 as a symmetry axis, in this embodiment, the fixing plate is composed of an X-shaped reinforcing frame 204 and a fixing side plate 205 fixed on the reinforcing frame 204, and the reinforcing frame 204 is fixed on the support through screws and screw holes. The swing blades 203 are limited between the crossing parts of the fixed plates by the fixed plates to form four relatively independent swing spaces, and the range of the four swing spaces changes along with the swing of the swing blades 203. For one extrusion pump 200, the number of the air bags 206 is four, the four air bags are respectively arranged in each swing space, and two extrusion surfaces of each air bag 206 are respectively fixed on the swing blade plate 203 and the fixing plate; each air bag 206 is provided with a one-way air inlet 221 and a one-way air outlet 220, the one-way air inlet 221 and the one-way air outlet 220 are both arranged in the corresponding direction of the fixed side plate 205, and the fixed side plate 205 is also provided with a corresponding one-way air inlet 221 and a corresponding one-way air outlet 220.
With the structure of the squeeze pump 200, when the louver assembly 101 swings, the swing louver 203 pushes the pair of air bags 206 on one side to squeeze towards the fixed side plate 205, the medium in the air bags 206 is discharged from the one-way air outlet 220, while the pair of air bags 206 on the other side are correspondingly stretched, a negative pressure difference is generated in the air bags 206, and the medium enters the air bags 206 from the one-way air inlet 221; the situation is reversed when the swing paddle 203 swings in the opposite direction.
As shown in fig. 6, taking advantage of the above characteristics, let any airbag 206 be the a airbag 1206, the airbag 206 adjacent to the a airbag 1206 be the B airbag 2206, the airbag 206 of the a airbag 1206 having the rotation axis 202 as the symmetry axis be the C airbag 3206, and the airbag 206 adjacent to the C airbag 3206 be the D airbag 4206; the one-way air outlet 220 of the A air bag 1206 and the C air bag 3206 is connected with the first one-way valve 209; the one-way air outlet 220 of the B air bag 2206 and the D air bag 4206 is connected with the second one-way valve 210; the one-way air inlets 221 of the a airbag 1206 and the C airbag 3206 are connected with the third one-way valve 211; the one-way air inlets 221 of the B air bag 2206 and the D air bag 4206 are connected with a fourth one-way valve 212; the first check valve 209 and the second check valve 210 are connected with the air storage tank 300; the third check valve 211 and the fourth check valve 212 are connected to an air filter 213.
With the above arrangement, when the rotating shaft 202 swings clockwise, the upper portion of the swing vane 203 presses the B airbag 2206 toward the B fixing plate, the lower portion of the swing vane 203 presses the D airbag 4206 toward the D fixing plate, and the high-pressure gas in the B airbag 2206 and the D airbag 4206 respectively exits from the one-way gas outlets 220 of B and D and enters the gas tank 300 through the second one-way valve 210 for energy storage. Meanwhile, a negative pressure difference is generated in the A air bag 1206 connected with the upper swing blade plate 203 portion and the C air bag 3206 connected with the lower swing blade plate 203 portion, the A air bag 1206 sucks air from the outside through the A one-way air inlet 221, the C air bag 3206 sucks air from the outside through the C one-way air inlet 221, and the A, C air inlet sucks the water vapor-filtered clean air into the air filter 213 through the third one-way valve 211; when the rotating shaft 202 swings counterclockwise, the swing vane 203 located above presses the air bag 1206 a in the direction of the fixing plate a, the swing vane 203 located below presses the air bag 3206C in the direction of the fixing plate C, and high-pressure air in the air bag 1206 a and the air bag 3206C respectively flows out of the one-way air outlets 220 of the air bag a and the air bag C and enters the air storage tank 300 through the first one-way valve 209 to be stored with energy. At the same time, a negative pressure difference is generated in the B bladder 2206 connected to the upper swing louver 203 portion and the D bladder 4206 connected to the lower swing louver 203 portion, the B bladder 2206 sucks air through the B one-way air inlet 221, the D bladder 4206 sucks air through the D one-way air inlet 221, and the B, D one-way air inlet 221 sucks clean air filtered from water vapor to the air filter 213 through the fourth one-way valve 212.
In this embodiment, the air bags 206 on the upper and lower halves are symmetrical, so as to ensure the balance of the forces on the up-and-down swinging blades, and make the output of the high-pressure medium more stable. Therefore, gapless efficient cyclic work doing independent of the wave direction can be achieved.
It should be noted that, based on the solution of the present embodiment, although it is the most preferable solution to use air as the medium for energy storage, it still supports the equivalent replacement of the hydraulic solution, which replaces the air storage tank 300 with the hydraulic pump; the pneumatic motor 401 is replaced with a hydraulic motor and the air filter 213 is replaced with an oil tank; the balloon 206 is replaced with a liquid balloon; this can be accomplished by replacing the one-way air inlet 221 and one-way air outlet 220 with one-way liquid inlet and one-way liquid outlet.
In a more specific design of this embodiment, as shown in fig. 7-9, the air bag 206 is formed by a plurality of lower flaps 215 hinged by hinges 216, a plurality of side flaps 214 hinged by hinges 216, and a flexible membrane 208.
The flexible membrane 208 is formed by mixing a high-strength flexible net and the flexible membrane 208, and is reinforced by a carbon fiber net 217 and a rubber strip 218, so that the flexible membrane 208 is tensile and compressive, but does not expand and deform. The flexible film 208 is adhered to the inside of the lower flap 215 and the side flap 214. The lower folding plates 215 are hinged together, and two sides of the lower folding plates 215 are respectively hinged with the bottom edges of the swinging leaf plates 203 and the fixed edge plates 205; a plurality of side flaps 214 are hinged together, and both sides of the side flaps 214 are hinged with the swing leaf panel 203 and the fixed side panel 205 respectively. The lower flap 215 and the side flaps 214 serve as a skeleton for the overall structure of the airbag 206, so that the airbag 206 does not bulge or deform when being squeezed, and does not indent when being unfolded and stretched, thereby forming a rigid cavity and sucking in a medium. Among other things, the solution in which the flexible film 208 adheres inside the lower flap 215 and the side flap 214 is better than the solution adhering outside: when the airbag 206 is unfolded, the negative pressure difference formed in the flexible film 208 generates suction on four sides of the airbag 206, air or hydraulic pressure is sucked to the outside, and the flexible film 208 is adhered to the flap plate to sufficiently resist the suction of the negative pressure difference. While when the bladder 206 is squeezed, the flexible membrane 208 expands outwardly, the lower flap 215, the side flap 214, the fixed side panel 205 and the swing leaf panel 203 are hinged together to form a rigid chamber, and the flexible membrane 208 is confined within the rigid chamber, such that the combination of the rigidity and the flexibility of the flexible membrane 208 can be squeezed outwardly to a greater pressure. Compared with a piston type hydraulic pump, the piston type hydraulic pump has the advantages that heat and energy loss can be generated due to friction between the piston type sealing ring and the cylinder wall, the extrusion pump 200 is directly extruded without the construction of the sealing ring and the piston cylinder, and the heat generated due to the loss and the friction can be reduced.
As shown in fig. 8, in order to increase the adhesion between the air bag 206 and the flap, the swing flap 203 and the fixing side panel 205, a strip 240 may be pressed into the air bag 206 and fixed by screws.
As shown in fig. 10, the hinges 216 of the lower flaps 215 are fixed with braces at intervals; the length of the stay is smaller than the length of the entire lower flap 215, so that the lower flap 215 is always folded and bent inward, and the airbag 206 is more easily folded as a whole when the swing flap 203 swings toward the fixed side panel 205. The brace can be made of carbon fiber rope or two sections of stainless steel hinges, and the example of the embodiment adopts the example of the stainless steel hinges, two ends of each section of the stainless steel hinges are respectively connected with the hinges 216 bent outwards of the lower folding plate 215, and when the lower folding plate 215 is folded, the brace is folded outwards.
As shown in fig. 12, in the present embodiment, in view of achieving more superior energy conversion performance, a double extrusion pump 200 is provided for energy conversion, in which a rotating shaft 202 is connected to a driving gear 230; the driving gear 230 is engaged with and connected with a first driven gear 231 and a second driven gear 232; the two driven gears are respectively connected with a rotating shaft 202 of one extrusion pump 200 through a clutch 233; the two extruder pumps 200 are sized one large and one small.
This configuration ensures a greater operating range by the control of clutch 233: when the wave is maximum, the two squeeze pumps 200 work simultaneously, when the wave is medium, only the large squeeze pump 200 works, and when the wave is minimum, the small squeeze pump 200 works. This embodiment is not limited to the case of two extrusion pumps 200, and the number thereof can be increased by the number of driven gears.
As shown in fig. 13, in the complete energy transfer gas path structure of the present embodiment, the gas storage tank 300 is connected to the pneumatic motor 401 through the variable pressure maintaining valve 306, and the variable pressure maintaining valve 306 is connected to the controller 307; the pneumatic motor 401 is connected to a generator 402 via a gearbox 403. The first check valve 209 and the second check valve 210 are connected with a fifth check valve 305 through a diverter valve 301, a first pipeline 302 and a second pipeline 303, and the fifth check valve 305 is connected with the air storage tank 300; a size converter 304 is connected to the second pipe 303.
As shown in fig. 14-16, the size converter 304 includes a large pneumatic cylinder and a small pneumatic cylinder that are coaxial; the large cylinder piston 501 and the small cylinder piston 502 are connected through a linkage shaft 504, and a sliding bearing 503 is sleeved outside the linkage shaft 504 to reduce friction force.
The outlets of the first one-way valve 209 and the second one-way valve 210 are connected with the small cylinder air inlet 508 and the inlet of the fifth one-way valve 305 is connected with the large cylinder air outlet 506, or the outlets of the first one-way valve 209 and the second one-way valve 210 are connected with the large cylinder air inlet 505 and the inlet of the fifth one-way valve 305 is connected with the small cylinder air outlet 507.
The significance of this structure is that, for example, when the wave exceeds the usual wind and wave, in order to expand the energy range of the wave energy, the outlet ends of the first check valve 209 and the second check valve 210 are connected with the small cylinder inlet 508, the high-pressure gas enters the small cylinder to push the small cylinder piston 502, the small cylinder piston 502 pushes the large cylinder piston 501 through the linkage shaft 504, and the large cylinder piston 501 extrudes the high-pressure gas with more flow to the large cylinder outlet 506 and inputs the high-pressure gas into the gas storage tank 300 through the inlet end of the fifth check valve 305. The same small-stroke pneumatic cylinder needs larger power to push the large pneumatic cylinder, so the large-stroke pneumatic cylinder also acts on the extrusion pump 200 mechanism to increase the swinging resistance of the swinging vane plate 203 of the extrusion pump mechanism so as to protect the operation safety of the whole mechanism; when the wave is lower than the usual power generation wind wave, on the same principle, the outlet ends of the first check valve 209 and the second check valve 210 are connected with the large cylinder air inlet 505, the small cylinder air outlet 507 is connected with the inlet end of the fifth check valve 305 and is connected to the inlet end of the air storage tank 300, the large air cylinder pushes the small air cylinder to reduce the power in the same stroke, the output power of the large air cylinder reacting on the extrusion pump 200 is reduced, the wind wave lower than the usual power generation can also do work, and therefore the utilization range of the wave energy is greatly expanded.
As shown in fig. 17, in order to improve energy utilization efficiency (a part of energy is converted into heat energy during air compression), in this embodiment, a first heat exchanger 601 and a second heat exchanger 602 are respectively connected to two ends of the air storage tank 300; the first heat exchanger 601 and the second heat exchanger 602 are connected to a low-temperature medium tank 603 and a high-temperature medium tank 604, respectively. The first heat exchanger 601 is connected to the outlet ends of the first check valve 209 and the second check valve 210, and the second heat exchanger 602 is connected to the air inlet end of the air motor 401. Through the device, the generated heat energy is stored in the high-temperature medium storage tank 604 through the heat exchanger; when the gas storage tank 300 outputs high-pressure gas, the output power can be increased by heating the gas, the power of the output gas is improved by outputting heat energy through the high-temperature medium storage tank 604, the output end becomes a low-temperature medium after heat exchange and flows back to the low-temperature medium storage tank 603, the medium of the low-temperature medium storage tank 603 exchanges and flows back the high-temperature gas at the inlet end to the high-temperature medium storage tank 604 through the heat exchanger, and therefore the circulating process is achieved.
As shown in fig. 18, in order to further improve the stability of the air pressure in the air tank 300, in the present embodiment, at least a portion of the air tank 300 is provided as a surge tank (preferably, at an air inlet or an air outlet). Wherein, steady voltage storehouse includes: an air inlet channel, a pressure stabilizing cabin body 705 and an adjusting cavity body 711.
Wherein, the outlet of the air inlet channel is provided with an air plug 701 and an air nozzle 702 which are matched with each other to communicate with a pressure stabilizing cabin body 705, and the air plug is sleeved on a movable rod which can perform horizontal displacement; the adjusting cavity 711 is sealed by an air film 704 and is further fixed by an air film pad 703, the movable rod penetrates through the air film 704 and is connected with an output shaft of a stepping motor 712 in the adjusting cavity 711 through an adjusting spring 710, the output shaft of the stepping motor 712 is in a screw 709 shape and is matched with a nut 708, the adjusting spring 415 is fixed by an upper spring disc 707, the other end of the adjusting spring 710 is fixed with the movable rod through a lower spring disc 706, and the lower spring disc 706 is fixed on the air film pad 703; the pressure stabilizing cabin body 705 is provided with an air outlet.
Through the device, when the pressure in the pressure stabilizing cabin body 705 exceeds a preset air pressure value, the air film 704 bulges towards the direction of the adjusting cavity 711, so that the air plug 701 is driven to move towards the direction of the adjusting cavity 711, and the air outlet of the air nozzle 702 is reduced until the air outlet is closed. When the pressure stabilizing cabin 705 outputs high-pressure gas through the gas outlet, the pressure in the pressure stabilizing cabin 705 decreases, the gas film 704 retracts toward the pressure stabilizing cabin 705, so as to drive the gas plug 701 to retract, the gas nozzle 702 is opened, and the high-pressure gas in the gas storage tank 300 or the one-way valve 207 can enter the pressure stabilizing cabin 705 through the gas nozzle 702. The stepping motor 712 is used for rotating the nut 708 through the screw 709 to lift the upper spring disc 707, and performing fine adjustment control on the adjusting spring 415 so as to adjust the air pressure threshold value in the pressure stabilizing cabin body 705.
Finally, as shown in fig. 19, this embodiment finally provides an application scenario suitable for the device of this embodiment, that is, a solution for combining the device of this embodiment with an offshore wind turbine: the support of the wave power generation equipment is a floating box type, the support can be connected to a cylinder of an offshore wind turbine, and a connecting piece connected with the cylinder can slide up and down, rotate 360 degrees and has the functions of angle locking and height locking. The wave is different along with the season, and wave wobbling direction can become, and wave power generation equipment can be according to wave wobbling direction adjustment optimum working angle, can lock the position of fixing wave power generation equipment after adjusting. The matching can simultaneously utilize the energy of wind power and waves at sea to generate electricity.
In this embodiment, two control schemes for energy output are provided, one of which is: the controller 307 controls the variable pressure maintaining valve 306 to stably output a given power for a given period of time.
The pressure condition in the gas storage tank 300 can be monitored in real time through devices such as a pressure sensing sensor, and the input quantity of high-pressure gas in each time unit can be calculated through the controller 307 by combining the gas pressure condition data and the tank volume of the gas storage tank 300. Then, the volume of the tank body and the flow rate of the gas output by the variable pressure stabilizing valve 306 are combined through the change of the signals of the air pressure unit, so that the gas input quantity of 300 gas storage tanks in each time unit is obtained; then, the output can be averaged according to the set time window; if the time window is 4 hours, the output amount per hour is evenly distributed according to the total input amount of gas of 4 hours. Assuming 4 hours of input power of 4MW, the average hour is 1MW, and the variable pressure maintaining valve 306 outputs power stably at 1MW per hour. The mode is similar to the principle of bank zero-deposit and integral-taking and is also like a water pool, water input from the upper part is input sometimes or not, sometimes, the water is input unstably, and the output of the water outlet at the lower part is not influenced. Meanwhile, as the air has vibration absorption and damping effects, the vibration wave type energy input can be eliminated, and the effect of better stable output can be realized through one-step adjustment of the variable pressure stabilizing valve 306.
The second is that: the controller 307 controls the variable pressure stabilizing valve 306 to increase the output power during the peak period of the power consumption, decrease the output power during the valley period of the power consumption, and control the total output power per unit time to be balanced with the input power.
The peak-valley output power can be set, and the peak-valley output power is distributed according to the 24-hour input quantity; the average output per hour of 24-hour high, medium and low three sections can be 8 hours, the low section is pure energy storage, the middle section is 4 hours total input to flatten the average output per hour, and the high section is the low section and increases the peak total average output per hour. Thus, the peak electricity selling and the valley storage are ensured, and the average output of the middle peak can not give too much pressure to the gas storage tank 300.
The present invention is not limited to the above-mentioned preferred embodiments, and any other swing type wave power generating device with a squeeze pump and its control method can be obtained according to the teaching of the present invention.
Claims (10)
1. The utility model provides a swing type wave power generation device with extrusion pump which characterized in that: a swing arm at least one end of the swing type sea wave power generation device is connected with a generator through an extrusion pump, an air storage tank and a pneumatic motor;
the extrusion pump includes: the swing blade plate, the air bag, the fixing plate, the rotating shaft and the bracket; the rotating shaft is connected with the swing arm; the swing blade plate is fixed on the rotating shaft by taking the rotating shaft as a symmetrical shaft and is vertical to the axis of the rotating shaft; two ends of the rotating shaft respectively penetrate through rotating shaft holes with bearings of the support seats on the two sides and are erected on the support seats; the cross section of the fixing plate is X-shaped and is fixed on the support by taking the rotating shaft as a symmetry axis; the swing blade plate is limited between the crossing parts of the fixed plates by the fixed plates to form four relatively independent swing spaces; the number of the air bags is four, the air bags are respectively arranged in each swing space, and two extrusion surfaces of each air bag are respectively fixed on the swing blade plate and the fixing plate; each air bag is provided with a one-way air inlet and a one-way air outlet;
setting any airbag as an airbag A, setting an adjacent airbag of the airbag A as an airbag B, setting the airbag of the airbag A taking a rotating shaft as a symmetry axis as an airbag C, and setting the adjacent airbag of the airbag C as an airbag D; the one-way air outlets of the air bags A and the air bags C are connected with a first one-way valve; the one-way air outlets of the air bags B and D are connected with a second one-way valve; the one-way air inlets of the air bags A and the air bags C are connected with a third one-way valve; the one-way air inlets of the air bags B and D are connected with a fourth one-way valve; the first one-way valve and the second one-way valve are connected with the air storage tank; and the third one-way valve and the fourth one-way valve are connected with an air filter.
2. The oscillating wave power generation device with the squeeze pump according to claim 1, wherein: the air bag comprises a plurality of lower folded plates hinged through hinges, a plurality of side folded plates hinged through hinges and a flexible film; the flexible film is fixed on the inner sides of the lower folding plate and the side folding plate; the lower folding plate and the side folding plate on the edge are hinged with the swing leaf plate or the fixed plate through hinges.
3. The oscillating wave power generation device with the squeeze pump according to claim 2, wherein: the hinges of the lower folding plates are fixed with braces at intervals; the flattening length of the brace is less than that of all the lower folded plates; the brace is a carbon fiber rope or a stainless steel hinge.
4. The oscillating wave power generation device with the squeeze pump according to claim 1, wherein: the rotating shaft is connected with a driving gear; the driving gear is meshed with at least two driven gears; each driven gear is connected with a rotating shaft of one extrusion pump through a clutch; the size of each of the extruder pumps is different.
5. The oscillating wave power generation device with the squeeze pump according to claim 1, wherein: the air storage tank is connected with the pneumatic motor through a variable pressure stabilizing valve, and the variable pressure stabilizing valve is connected with the controller; the pneumatic motor is connected with a generator through a gearbox.
6. The oscillating wave power generation device with the squeeze pump according to claim 1, wherein: the first one-way valve and the second one-way valve are connected with a fifth one-way valve through a diverter valve, a first pipeline and a second pipeline, and the fifth one-way valve is connected with the gas storage tank; a big-small converter is connected in the second pipeline; the size converter comprises a large pneumatic cylinder and a small coaxial pneumatic cylinder; the outlet ends of the first one-way valve and the second one-way valve are connected with the inlet end of the small pneumatic cylinder, and the inlet end of the fifth one-way valve is connected with the outlet end of the large pneumatic cylinder, or the outlet ends of the first one-way valve and the second one-way valve are connected with the inlet end of the large pneumatic cylinder, and the inlet end of the fifth one-way valve is connected with the outlet end of the small pneumatic cylinder.
7. The oscillating wave power generation device with the squeeze pump according to claim 1, wherein: two ends of the gas storage tank are respectively connected with a first heat exchanger and a second heat exchanger; the first heat exchanger and the second heat exchanger are respectively connected with a low-temperature medium storage tank and a high-temperature medium storage tank; the first heat exchanger is connected with the outlet ends of the first check valve and the second check valve, and the second heat exchanger is connected with the air inlet end of the pneumatic motor.
8. The oscillating wave power generation device with the squeeze pump according to claim 1, wherein: at least one section of the air storage tank is provided with a pressure stabilizing bin; the surge bin includes: the device comprises an air inlet channel, a pressure stabilizing cabin body and an adjusting cavity; an outlet of the air inlet channel is provided with an air plug and an air nozzle which are matched with each other to communicate with the pressure stabilizing cabin body, and the air plug is sleeved on the movable rod; the adjusting cavity is sealed through an air film, and the movable rod penetrates through the air film and is connected with an output shaft of the stepping motor through an adjusting spring in the adjusting cavity; the pressure stabilizing cabin body is provided with an air outlet.
9. The oscillating wave power generation device with the squeeze pump according to claim 1, wherein: the air storage tank is replaced by a hydraulic pump; the pneumatic motor is replaced by a hydraulic motor, and the air filter is replaced by an oil tank; the air bag is replaced by a liquid bag; the one-way air inlet and the one-way air outlet are replaced by a one-way liquid inlet and a one-way liquid outlet.
10. The swing type ocean wave power plant with the squeeze pump according to claim 5, wherein: the controller controls the variable pressure stabilizing valve to stably output given power in a given time period; the controller controls the variable pressure stabilizing valve to improve the output power in the peak period of power utilization, reduce the output power in the valley period of power utilization, and control the total output power and the input power in unit time to keep balance.
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| SU1566071A1 (en) * | 1988-08-01 | 1990-05-23 | Войсковая Часть 25840 | Hydraulic compressor |
| CN2317331Y (en) * | 1996-12-17 | 1999-05-05 | 郑信舟 | Airbag seawave breakwater power generator |
| CN103306952A (en) * | 2013-06-18 | 2013-09-18 | 颜可根 | Film folded type refrigeration compressor |
| CN103696901B (en) * | 2013-12-16 | 2016-08-24 | 深圳市优美环境治理有限公司 | A kind of Wave power generation device |
| CN107956630B (en) * | 2017-12-01 | 2020-08-25 | 福建智盛能源科技有限公司 | Oscillating sea wave power generation device |
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