CN112855414B - Power generation system based on piezoelectric-electromagnetic effect - Google Patents
Power generation system based on piezoelectric-electromagnetic effect Download PDFInfo
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- CN112855414B CN112855414B CN202110270380.0A CN202110270380A CN112855414B CN 112855414 B CN112855414 B CN 112855414B CN 202110270380 A CN202110270380 A CN 202110270380A CN 112855414 B CN112855414 B CN 112855414B
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- 238000010248 power generation Methods 0.000 title claims abstract description 90
- 230000000694 effects Effects 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
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- 230000000712 assembly Effects 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 3
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- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 238000006124 Pilkington process Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
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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
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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
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
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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
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Abstract
The invention discloses a power generation system based on piezoelectric-electromagnetic effect, comprising: the rainwater collecting device comprises at least one first power generation assembly, a water collecting assembly and a second power generation assembly, wherein the first power generation assembly is used for generating power by utilizing kinetic energy generated when raindrops fall down and comprises at least one water collecting pipe and a first pipeline, the water collecting pipe is used for collecting rainwater, the liquid inlet end of the first pipeline is communicated with the liquid outlet end of the water collecting pipe, and the liquid inlet end of the second power generation assembly is communicated with the liquid outlet end of the first pipeline and is used for generating power by utilizing the rainwater flowing through the second power generation assembly. The invention can solve the technical problem that a device for converting the energy in the rainwater into the electric energy to realize the efficient utilization of the energy is lacked in the prior art.
Description
Technical Field
The invention relates to the technical field of power generation devices, in particular to a power generation system based on a piezoelectric-electromagnetic effect.
Background
With the increasing demand of human society for energy, the shortage of energy has become a common problem in all countries of the world. At present, students in all countries in the world do a lot of research in the field of environmental energy capture, and get a happy result, and in areas with abundant rainfall, huge kinetic energy contained in rainfall becomes a novel green energy if the huge kinetic energy can be effectively utilized. From the perspective of the spatial distribution of rainfall in China, the coastal areas of southeast have large rainfall and have huge potential of generating electricity by utilizing rainfall. In addition, the defect that the power generation amount of the current mainstream photovoltaic power generation facilities is insufficient in rainy days can be overcome by utilizing rainfall for power generation.
For example, the invention patent of chinese with application number CN201210249090.9, named as a bistable double-cantilever piezoelectric power generation device, utilizes the direct piezoelectric effect of the piezoelectric material to convert the vibration kinetic energy in the surrounding environment into usable electric energy, and can capture the kinetic energy of raindrops falling and generate power by using the same.
Therefore, there is a need for an energy conversion system that can take full advantage of rain in regions with heavy rainfall and convert it into electrical energy.
Disclosure of Invention
In view of the above, there is a need to provide a power generation system based on piezoelectric-electromagnetic effect, which solves the technical problem that there may be no device for converting the energy in the rainwater into electric energy to realize efficient energy utilization in the prior art.
In order to achieve the above technical object, a power generation system based on a piezoelectric-electromagnetic effect according to an aspect of the present invention includes:
the first power generation assembly is used for generating power by utilizing kinetic energy generated when raindrops fall;
the rainwater collecting assembly comprises at least one water collecting pipe and a first pipeline, the water collecting pipe is used for collecting rainwater, and the liquid inlet end of the first pipeline is communicated with the liquid outlet end of the water collecting pipe;
and the liquid inlet end of the second power generation assembly is communicated with the liquid outlet end of the first pipeline and is used for generating power by utilizing rainwater flowing through the second power generation assembly.
Further, power generation system based on piezoelectricity-electromagnetism effect still includes the box, the inside hollow and open-top of box, place in the first power generation subassembly in the box, first power generation subassembly includes first backup pad, cantilever beam and at least one piezoelectric patch, first backup pad connect in the inner wall of box, cantilever beam level set up and its one end connect in first backup pad, the cantilever beam with the bottom inner wall interval of box sets up, the piezoelectric patch connect in the cantilever beam is followed the length direction setting of cantilever beam.
Furthermore, the first power generation assembly further comprises a second support plate, a first magnet and a second magnet, the second support plate is connected to the inner wall of the box body and arranged at an interval with the other end of the cantilever beam, the first magnet is connected to the other end of the cantilever beam, the second magnet is arranged opposite to the first magnet and connected to the second support plate, and the magnetic poles of the second magnet and the opposite side of the first magnet are oppositely arranged and used for driving the other ends of the first magnet and the cantilever beam to move in the direction perpendicular to the cantilever beam.
Further, at least one water collecting hole is opened at the bottom of the box body, the water collecting pipe is arranged in one-to-one correspondence with the water collecting hole, one end of the water collecting pipe is inserted into the water collecting hole, the water collecting assembly further comprises at least one filtering piece, and the filtering piece is arranged in one-to-one correspondence with the water collecting pipe and is arranged at one end of the water collecting pipe.
Further, the inner wall of the one end of collector pipe is followed the annular groove has been seted up to the axis of collector pipe, the external screw thread has still been seted up to the outer wall of the one end of collector pipe, filter still includes filter bag, support frame and annular end cover, place in the filter bag annular groove and its open end can dismantle connect in the other end of collector pipe, place in the support frame can dismantle the open end and the butt of filter bag in the bottom of annular groove, the annular end cover is seted up there is the internal thread, annular end cover threaded connection in the external screw thread of the one end of collector pipe will the filter bag with the support frame is spacing in the annular groove.
Furthermore, the subassembly that catchments still includes at least one second pipeline, the second pipeline with the collector pipe one-to-one sets up, the feed liquor end of second pipeline with the collector pipe is linked together, the play liquid end of second pipeline is linked together with the sewer.
Further, the second power generation assembly comprises at least one water turbine, and the water turbine is communicated with the liquid outlet end of the first pipeline.
Further, the second power generation assembly further comprises a water tank, and the water tank is communicated with the liquid outlet end of the water turbine.
Furthermore, the power generation system based on the piezoelectric-electromagnetic effect further comprises a control assembly, wherein the control assembly is electrically connected with the first power generation assembly and the second power generation assembly and is used for realizing intelligent control of the first power generation assembly and the second power generation assembly.
Further, the power generation system based on the piezoelectric-electromagnetic effect also comprises a storage battery.
Compared with the prior art, the invention has the beneficial effects that: the rainwater collecting device is characterized in that at least one first power generation assembly is laid in an area with abundant rainfall and used for capturing kinetic energy of rainwater falling and utilizing the kinetic energy to generate power, a water collecting pipe of the water collecting assembly collects the rainwater falling and used for forming a stable water flow, the collected rainwater flows into a second power generation assembly along a first pipeline and is used for forming secondary kinetic energy of the collected rainwater, and the second power generation assembly is used for generating power again.
Drawings
FIG. 1 is a schematic structural diagram of a power generation system based on the piezoelectric-electromagnetic effect according to an embodiment of the present invention;
FIG. 2 is a schematic layout of a first power generation assembly provided by an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a first power generation assembly provided by an embodiment of the invention;
FIG. 4 is a schematic layout of a water collecting pipe, a first pipeline and a second pipeline provided by an embodiment of the present invention;
FIG. 5 is a schematic structural view of a filter element provided in accordance with an embodiment of the present invention;
FIG. 6 is an enlarged partial schematic view at A of FIG. 5;
fig. 7 is a schematic connection diagram of the first pipeline, the water turbine and the water tank according to the embodiment of the present invention.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Referring to fig. 1 and 2, the present invention provides a power generation system based on piezoelectric-electromagnetic effect, which is used for collecting rainwater in a region with abundant rainfall and converting kinetic energy generated by the rainwater into electric energy for energy utilization of civilian life, and specifically, the power generation system includes: at least one first electricity generation subassembly 1, subassembly 2 and the second electricity generation subassembly 3 catchments, first electricity generation subassembly 1 is used for utilizing the kinetic energy that produces when the raindrop falls to generate electricity, and subassembly 2 catchments includes at least one collector pipe 21 and first pipeline 22, and collector pipe 21 is used for collecting the rainwater, and the feed liquor end of first pipeline 22 communicates with the play liquid end of collector pipe 21, and the feed liquor end of the second electricity generation subassembly 3 communicates with the play liquid end of first pipeline 22 for utilize the rainwater through the second electricity generation subassembly 3 to generate electricity.
Further, in order to facilitate the collection and utilization of rainwater, the power generation system provided in the present embodiment is preferably disposed at a higher position, such as the top of a high-rise building, the top of a mountain, the top of various buildings 4, and the like, and for further convenience of description, the following usage scenarios will be described by taking the power generation system disposed at the top of the building 4 as an example.
Further, it can be understood that the first power generation assembly 1 is laid on the top of the building 4 for capturing and collecting kinetic energy generated when raindrops fall and for generating power by using rainwater flowing through the second power generation assembly 3, the water collection assembly 2 is used for collecting rainwater flowing through the first power generation assembly 1 and forming stable water flow to be discharged along the first pipe 22, the first pipe 22 is arranged in the height direction of the building 4 for forming a height difference and forming kinetic energy and potential energy, rainwater having kinetic energy flows through the second power generation assembly 3 for flowing rainwater through the first pipe 22 to generate secondary kinetic energy and generating power by using the secondary kinetic energy generated when the rainwater falls.
Further, the number of the first power generation assemblies 1 of the present invention may be one, two, three, four or more, as shown in fig. 2, a plurality of the first power generation assemblies 1 are uniformly arranged, and the water collection pipe 21 is laid below the first power generation assemblies 1, collects and merges rainwater, flows through the first pipe 22 for forming a relatively stable water flow, and is discharged along the water outlet end of the first pipe 22.
As shown in fig. 2 and 3, the power generation system based on the piezoelectric-electromagnetic effect further includes a box 5, the box 5 is hollow inside and has an open top, the first power generation assembly 1 is disposed in the box 5, the first power generation assembly 1 includes a first support plate 11, a cantilever beam 12 and at least one piezoelectric sheet 13, the first support plate 11 is connected to an inner wall of the box 5, the cantilever beam 12 is horizontally disposed, and one end of the cantilever beam is connected to the first support plate 11, the cantilever beam 12 is spaced from an inner wall of the bottom of the box 5, and the piezoelectric sheet 13 is connected to the cantilever beam 12 and is disposed along a length direction of the cantilever beam 12.
Further, it can be understood that, as shown in fig. 3, the first support plate 11, the cantilever beam 12 and the at least one piezoelectric sheet 13 constitute a minimum first power generation assembly 1 unit, and the plurality of first power generation assemblies 1 are arranged in the layout manner as shown in fig. 2, and are uniformly embedded in the box 5 and connected to the inner wall of the box 5.
Furthermore, in the invention, a first power generation assembly 1 comprises two piezoelectric patches 13, the two piezoelectric patches 13 are respectively connected to the upper and lower side surfaces of the cantilever beam 12 and are arranged along the length direction of the cantilever beam 12, rainwater falls on the cantilever beam 12 to cause the other end of the cantilever beam 12 to vibrate and drive the piezoelectric patches 13 to resonate, and vibration kinetic energy in the surrounding environment can be converted into usable electric energy due to the positive piezoelectric effect of the piezoelectric patches 13, so that the utilization of the kinetic energy of the rainwater is realized and the kinetic energy is converted into the electric energy.
Further, in order to achieve better effects, the material of the cantilever beam 12 should be selected from materials with strength and toughness, such as aluminum, copper, monocrystalline silicon, etc., the piezoelectric material is the prior art, has a simple structure, is green and environment-friendly, has a large energy density, has no electromagnetic interference, is easy to process, and realizes miniaturization and integration, has obvious advantages, and PZT and PVDF can be selected, which are not described herein too much.
Further, a motor and a lead are arranged on the cantilever beam 12, and are used for collecting the converted electric energy, and transmitting the electric energy to an electric energy storage device for further processing.
As shown in fig. 2 and 3, the first power generation assembly 1 further comprises a second support plate 14, a first magnet 15 and a second magnet 16, the second support plate 14 is connected to the inner wall of the box 5 and is arranged at a distance from the other end of the cantilever beam 12, the first magnet 15 is connected to the other end of the cantilever beam 12, the second magnet 16 is arranged opposite to the first magnet 15 and is connected to the second support plate 14, and the second magnet 16 is arranged opposite to the magnetic pole of the opposite side of the first magnet 15 and is used for driving the other ends of the first magnet 15 and the cantilever beam 12 to move in the direction vertical to the cantilever beam 12.
Further, the first magnet 15 and the second magnet 16 are fixedly connected to the free end of the cantilever beam 12 and the second support plate 14, respectively, and the first magnet 15 and the second magnet 16 always have repulsive forces repelling each other, so that the first magnet 15 always has a tendency to move in a direction perpendicular to the cantilever beam 12.
Further, it can be understood that, when the cantilever beam 12 vibrates, the repulsive force of the first magnet 15 and the second magnet 16 can expand the amplitude, time, etc. of the cantilever beam 12, so as to continuously drive the piezoelectric material on the surface of the cantilever beam 12 to deform, thereby generating electric energy.
As shown in fig. 4, at least one water collecting hole is formed at the bottom of the box body 5, the water collecting pipes 21 are arranged in one-to-one correspondence with the water collecting holes, one end of each water collecting pipe 21 is inserted into the water collecting hole, the water collecting assembly 2 further comprises at least one filtering piece 23, and the filtering pieces 23 are arranged in one-to-one correspondence with the water collecting pipes 21 and are arranged at one end of the water collecting pipes 21.
Further, the number of the water collecting holes in the present invention may be one, two, three, four or more, specifically, the number here is eight, the number of the water collecting pipes 21 and the number of the filtering pieces 23 are respectively arranged corresponding to the water collecting holes, and the eight water collecting holes are uniformly arranged along the circumferential direction of the bottom of the case 5 and communicate with the inside of the case 5.
Further, it can be understood that the water collecting pipes 21 are obliquely arranged relative to the plane of the bottom of the box body 5, the water collecting pipes 21 are communicated with the first water pipe, the water inside the box body 5 is collected and converged, a stable water flow is formed, and the filtering piece 23 is arranged between the box body 5 and the water collecting pipes 21, is used for filtering impurities, leaves and the like, and avoids blockage.
As shown in fig. 5 and 6, an annular groove 211 is formed in the inner wall of one end of the water collecting pipe 21 along the axis of the water collecting pipe 21, an external thread is further formed in the outer wall of one end of the water collecting pipe 21, the filter piece 23 further comprises a filter bag 231, a support frame 232 and an annular end cover 233, the filter bag 231 is placed in the annular groove 211, the opening end of the filter bag 231 is detachably connected to the other end of the water collecting pipe 21, the support frame 232 is detachably placed in the opening end of the filter bag 231 and abuts against the bottom of the annular groove 211, an internal thread is formed in the annular end cover 233, and the annular end cover 233 is in threaded connection with the external thread of one end of the water collecting pipe 21 and limits the filter bag 231 and the support frame 232 to the annular groove 211.
Further, the filter bag 231 and the support frame 232 can be disassembled and placed in the annular groove 211 of the water collecting pipe 21, the annular end cover 233 is connected to the water collecting pipe 21 in a threaded mode, the support frame 232 is used for expanding the filter bag 231 and is matched with the annular groove 211 to limit the filter bag 231 in the annular groove 211, impurities, leaves and the like can be filtered, other detachable structures can be used for replacement, and the illustration is omitted.
As shown in fig. 4, the water collecting assembly 2 further comprises at least one second pipeline 24, the second pipeline 24 is arranged corresponding to the water collecting pipe 21, the liquid inlet end of the second pipeline 24 is communicated with the water collecting pipe 21, and the liquid outlet end of the second pipeline 24 is communicated with the sewer of the building 4.
Further, it can be understood that the second pipes 24 are disposed in one-to-one correspondence with the water collecting pipes 21 and communicated with the water collecting pipes 21, and the second pipes 24 are provided with valves for diverting rainwater flowing through the water collecting pipes 21 in the peak period of a rainy season to perform a draining function, so as to prevent the rainwater from being blocked in the box 5 due to the limited flow of the first pipe 22 and affecting the normal operation of the first power generation assembly 1.
As shown in fig. 7, the second power generation module 3 includes at least one hydraulic turbine 31, and the hydraulic turbine 31 is communicated with the outlet end of the first pipe 22.
Further, the turbine 31 is a conventional turbine, and specifically, the present invention employs a through-flow turbine generator, four through-flow turbine generators are connected in series to form a generator set, and rainwater flows along the first pipeline 22 and sequentially flows through the four through-flow turbine generators.
Furthermore, water flow is guided to enter a volute of the water turbine 31 to form a circulating flow at first, then is divided by the seat ring fixed guide vanes and then uniformly enters the movable guide vanes, the water flow of the rotating wheel is adjusted by the opening degree of the movable guide vanes, the rotating wheel rotates under the action of the pressure and the speed of water to convert water energy (kinetic energy and potential energy) into mechanical energy, the water flow at the outlet of the rotating wheel is discharged through a draft tube, the rotating torque of the rotating wheel is transmitted to a generator rotor connected with a large shaft of the water turbine 31 by a large shaft of the water turbine 31 to drive the generator rotor to rotate, and when direct current is introduced into a rotor winding of the generator, a magnetic field is formed and the rotor rotates to generate a rotating magnetic field.
Further, the generator stator winding generates an alternating induced potential in the generator three-phase stator winding due to the rotating magnetic field cutting the rotor. When an output circuit of a three-phase stator winding of the generator is connected with a load, alternating three-phase current is generated, a magnetic field generated by the alternating current forms a rotating magnetic field at a stator and a rotor of the generator, the rotating magnetic field generated by the stator winding and the rotating magnetic field of a rotor of the generator are in the same direction and the same speed, when the number p of pole pairs of the rotor of the generator is fixed, the rotating speed n of the generator has a strict invariable relation with the frequency f of potential, namely a synchronous relation, and f = p × n/60; wherein f is the frequency of the synchronous generator potential (Hz); p is the magnetic pole pair number of the synchronous generator; and n is the rotating speed (r/min) of the rotor of the synchronous generator.
As shown in fig. 7, the second power generation module 3 further includes a water tank 32, and the water tank 32 is communicated with the outlet end of the water turbine 31.
Further, the water tank 32 is used for collecting and storing the rainwater generated after power generation, so that the rainwater is convenient to use subsequently.
As shown in fig. 1, the power generation system based on the piezoelectric-electromagnetic effect further comprises a control assembly 6, wherein the control assembly 6 is connected to the building 4 and electrically connected to the first power generation assembly 1 and the second power generation assembly 3, and is used for controlling and storing the electric energy of the first power generation assembly 1 and the second power generation assembly 3.
Furthermore, an LT4320 ideal rectifier bridge is adopted as a control component of the system, so that process loss is reduced, and energy utilization efficiency is improved. In order to ensure the charging efficiency, the boost charging circuit adopts the idea of boosting after reaching a voltage threshold value to charge, and can ensure higher charging efficiency under the condition of small rainfall capacity. The electric quantity distribution intelligent control measures the electric quantity of the battery by adopting the corresponding HAL library in the program design of the single chip microcomputer, and the purpose of collecting the real-time electric quantity is achieved. Meanwhile, the floor monitoring equipment is controlled through the wireless WIFI module, the wireless communication module and the like in cooperation with the mobile phone APP, so that the effects of distributing and adjusting the electric quantity in the floor are achieved.
Further, the programming of the modules of the control module 6 uses STM32F103C8T6 as a central controller, and the modules will perform on and off operations according to information commands given from the controller.
As shown in fig. 1, the present invention further includes a storage battery 7, and the storage battery 7 is charged by a float method, i.e., an intermittent storage battery 7, which can reduce the gassing rate of the storage battery 7 and prevent overcharge. Meanwhile, the storage battery 7 has larger current at the moment of discharging the equipment, so that the voltage of the power supply system is killed, and the electric equipment works normally. The regular equalizing charge is used for solving the phenomenon of insufficient charge during charging, and the service life of the battery is prolonged. An overcharge scheme based on a power UPS is designed, which can effectively ensure that each battery can be fully charged, and the rated voltage of the whole group can be judged.
According to the specific working process, the first power generation assembly 1 is uniformly paved on the top of the building 4, the first power generation assembly 1 comprises a cantilever arm and a piezoelectric material sleeve and is used for absorbing and capturing falling kinetic energy of raindrops and converting the kinetic energy into electric energy and electromagnetic energy, a water collection assembly 2 is arranged below the first power generation assembly 1, the raindrops flow through the first power generation assembly 1 and then flow together through a water collection pipe 21 and flow along the arrangement direction of a first pipeline 22, and a water turbine 31 is arranged at the bottom of the building 4 and communicated with the first pipeline 22 and is used for forming a height difference to enable the rainwater to generate kinetic energy and drive the water turbine 31 to generate power and finally collect the rainwater.
When the system is used by a user, the first power generation assembly 1 of the system is laid on the top of the building 4, the water collecting assembly 2 is arranged below the first power generation assembly 1, the second power generation assembly 3 is arranged at the bottom of the building 4, and the first pipeline 22 is communicated with the water turbine 31.
Therefore, rainwater piezoelectric power generation is taken as a core, rainwater collection and confluence power generation are combined, the height difference between the top and the bottom of the building 4 is utilized, and the energy of rainwater is secondarily utilized, so that the technical problems that an energy conversion system is needed urgently in the prior art, rainwater in an area with abundant rainfall is possibly fully utilized and converted into electric energy are possibly solved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (7)
1. A power generation system based on the piezoelectric-electromagnetic effect, comprising:
the box body is hollow, the top of the box body is open, and the bottom of the box body is provided with at least one water collecting hole;
the first power generation assembly comprises a first supporting plate, a cantilever beam, at least one piezoelectric sheet, a second supporting plate, a first magnet and a second magnet, wherein the first supporting plate is connected to the inner wall of the box body, one end of the cantilever beam is horizontally arranged and connected to the first supporting plate, the cantilever beam and the inner wall of the bottom of the box body are arranged at intervals, the piezoelectric sheet is connected to the cantilever beam and arranged along the length direction of the cantilever beam, the second supporting plate is connected to the inner wall of the box body and arranged at intervals with the other end of the cantilever beam, the first magnet is connected to the other end of the cantilever beam, the second magnet is arranged opposite to the first magnet and connected to the second supporting plate, and the magnetic poles of the second magnet and the opposite side of the first magnet are arranged in opposite directions and used for driving the other ends of the first magnet and the cantilever beam to move in the direction vertical to the cantilever beam so as to generate power by utilizing kinetic energy generated when raindrops fall;
the water collecting assembly comprises at least one water collecting pipe, a first pipeline and at least one filtering piece, the water collecting pipe and the water collecting hole are arranged in a one-to-one correspondence mode, one end of the water collecting pipe is inserted into the water collecting hole, the water collecting pipe is laid below the first power generation assembly and used for collecting and converging rainwater, the liquid inlet end of the first pipeline is communicated with the liquid outlet end of the water collecting pipe, rainwater flowing through the first pipeline is used for forming relatively stable water flow and is discharged along the liquid outlet end of the first pipeline, and the filtering piece and the water collecting pipe are arranged in one-to-one correspondence mode and are arranged at one end of the water collecting pipe;
and the liquid inlet end of the second power generation assembly is communicated with the liquid outlet end of the first pipeline and is used for generating power by utilizing rainwater flowing through the second power generation assembly.
2. The piezoelectric-electromagnetic effect based power generation system according to claim 1, wherein an inner wall of one end of the water collection pipe is provided with an annular groove along an axis of the water collection pipe, an outer wall of one end of the water collection pipe is further provided with an external thread, the filter element further comprises a filter bag, a support frame and an annular end cover, the filter bag is placed in the annular groove, an open end of the filter bag is detachably connected to the other end of the water collection pipe, the support frame is detachably placed in the open end of the filter bag and abuts against a bottom of the annular groove, the annular end cover is provided with an internal thread, and the annular end cover is in threaded connection with the external thread of one end of the water collection pipe and limits the filter bag and the support frame in the annular groove.
3. The piezoelectric-electromagnetic effect based power generation system according to claim 1, wherein the water collection assembly further comprises at least one second pipeline, the second pipeline is arranged in one-to-one correspondence with the water collection pipe, a liquid inlet end of the second pipeline is communicated with the water collection pipe, and a liquid outlet end of the second pipeline is communicated with a sewer.
4. The piezoelectric-electromagnetic effect based power generation system according to claim 1, wherein the second power generation assembly comprises at least one hydraulic turbine, and the hydraulic turbine is communicated with the liquid outlet end of the first pipeline.
5. The piezoelectric-electromagnetic effect based power generation system according to claim 4, wherein the second power generation assembly further comprises a water tank, and the water tank is communicated with the outlet end of the water turbine.
6. The piezo-electromagnetic effect based power generation system according to claim 1, further comprising a control component electrically connected to both the first power generation component and the second power generation component for intelligent control of the first power generation component and the second power generation component.
7. The piezo-electromagnetic effect based power generation system according to claim 1, further comprising a battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110270380.0A CN112855414B (en) | 2021-03-12 | 2021-03-12 | Power generation system based on piezoelectric-electromagnetic effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110270380.0A CN112855414B (en) | 2021-03-12 | 2021-03-12 | Power generation system based on piezoelectric-electromagnetic effect |
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| CN111851706A (en) * | 2020-07-15 | 2020-10-30 | 浙江恒昌建设有限公司 | Municipal drainage pipeline and construction method thereof |
| CN212491832U (en) * | 2020-06-11 | 2021-02-09 | 长春联创水质工程有限公司 | Water treatment device with filter plate capable of being cleaned and disassembled |
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| US7479727B1 (en) * | 2005-07-20 | 2009-01-20 | Winston Grace | Apparatus and method for pyroelectric and piezoelectric power generation and thermoelectric heat transfer |
| WO2011115325A1 (en) * | 2010-03-17 | 2011-09-22 | (주)신비앤썬 | Environment-friendly power generator using piezoelectric element |
| CN103343725A (en) * | 2013-07-22 | 2013-10-09 | 哈尔滨工业大学 | Composite rainwater power generation device based on mini water bucket and PVDF film piezoelectric technology |
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