CN114352463B - Small-temperature-difference micro heat engine combined with friction power generation - Google Patents
Small-temperature-difference micro heat engine combined with friction power generation Download PDFInfo
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- CN114352463B CN114352463B CN202111508265.9A CN202111508265A CN114352463B CN 114352463 B CN114352463 B CN 114352463B CN 202111508265 A CN202111508265 A CN 202111508265A CN 114352463 B CN114352463 B CN 114352463B
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- 238000010248 power generation Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000004146 energy storage Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000005611 electricity Effects 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 34
- 229910052802 copper Inorganic materials 0.000 claims description 34
- 239000010949 copper Substances 0.000 claims description 34
- 239000000758 substrate Substances 0.000 claims description 17
- 230000000087 stabilizing effect Effects 0.000 claims description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical group CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 15
- 229920001721 polyimide Polymers 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 8
- 229920006395 saturated elastomer Polymers 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
- F04B19/20—Other positive-displacement pumps
- F04B19/24—Pumping by heat expansion of pumped fluid
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to a small-temperature-difference micro heat engine combined with friction power generation, which comprises an upper container and a lower container; the lower container is internally provided with a liquid working medium, a first pipeline and a second pipeline which are communicated are respectively arranged between the upper container and the lower container, the first pipeline is provided with a miniature impeller for generating mechanical energy, and the liquid working medium flows through the miniature impeller through the first pipeline; the second pipeline is provided with an electromagnetic valve for balancing the internal vapor pressure; one side of the miniature impeller is provided with a miniature friction generator for converting mechanical energy into electric energy, and a transmission shaft of the miniature impeller is connected with a rotating shaft of the miniature friction generator through a transmission speed increasing mechanism; one side of the miniature friction generator is connected with an energy storage device for storing electric energy. The upper container is a condensing end, the liquid working medium in the upper container reciprocates up and down under the action of steam pressure difference, and the micro impeller drives the micro friction generator to generate electricity and store the electricity, so that the kinetic energy of the liquid working medium is converted into electric energy to store.
Description
Technical Field
The invention belongs to a small-temperature-difference micro heat engine, and particularly relates to a small-temperature-difference micro heat engine combined with friction power generation.
Background
The recovery and utilization of low-grade heat energy are important research subjects at present, the low-grade heat energy mainly comprises industrial waste heat, waste heat and the like, and as the difference between the temperature of a heat source and the room temperature is small, the energy grade is low, and how to effectively utilize the mechanical energy contained in the low-grade heat energy brings long challenges to the development of energy-saving technology. In recent years, micro energy collection technology has been greatly developed, and the main purpose of micro energy collection is to collect and convert weak mechanical energy in the environment into electric energy, so that an electronic system can self-maintain operation for a long time. Currently the main micro-energy harvesting includes thermoelectric conversion, photoelectric conversion, piezoelectric conversion, and turbine power generation technologies, etc. Conventionally, a circulating heat engine mode is mainly adopted by utilizing low-grade heat energy, but the circulating heat engine of a traditional cylinder needs a certain starting condition and cannot be performed under a small temperature difference, so that how to combine the circulating heat engine with a micro-energy acquisition technology becomes a problem to be researched and solved.
Disclosure of Invention
The invention aims to: the invention aims to provide a small-temperature-difference micro heat engine which converts heat energy of a heat source into electric energy by utilizing the pressure difference effect of saturated steam.
The technical scheme is as follows: the invention relates to a small-temperature-difference micro heat engine combined with friction power generation, which comprises an upper container and a lower container; the lower container is internally provided with a liquid working medium, a first pipeline and a second pipeline which are communicated are respectively arranged between the upper container and the lower container, a miniature impeller for generating mechanical energy is arranged on the first pipeline, and the liquid working medium flows through the miniature impeller through the first pipeline; the second pipeline is provided with an electromagnetic valve for balancing internal vapor pressure; one side of the miniature impeller is provided with a miniature friction generator for converting mechanical energy into electric energy, and a transmission shaft of the miniature impeller is connected with a rotating shaft of the miniature friction generator through a transmission speed increasing mechanism; one side of the miniature friction generator is connected with an energy storage device for storing electric energy.
Further, a heat source for heating the liquid working medium is arranged under the lower container, and a water spraying water tank for cooling is arranged right above the upper container; two ends of the first pipeline are respectively connected with the bottoms of the side surfaces of the upper container and the lower container, and two ends of the second pipeline are respectively connected with the tops of the upper container and the lower container.
Further, in order to strengthen the cooling effect of the upper container, the upper end face of the upper container is embedded with a plurality of heat pipes for accelerating heat dissipation and cooling, the heat pipes are vertically placed, the evaporation section of the heat pipes is positioned inside the upper container, and the condensation section of the heat pipes is placed in an air environment.
Further, the miniature friction generator comprises a movable disc connected with the transmission speed increasing mechanism and a static disc fixedly arranged on one side of the movable disc; the movable disc comprises an upper substrate disc and an upper copper grating disc arranged in the upper substrate disc, and the upper copper grating disc is connected with the output end of the transmission speed increasing mechanism; the static disc comprises a lower substrate disc, a lower copper grating disc and a polyimide film, wherein the lower copper grating disc is fixed in the lower substrate disc, the circle centers of the lower copper grating disc and the upper copper grating disc are coaxial, the polyimide film is arranged on the surface, opposite to the upper copper grating disc, of the lower copper grating disc, and the upper copper grating disc rubs with the polyimide film when rotating along with the transmission speed increasing mechanism.
Further, the transmission speed increasing mechanism comprises a driving wheel and a driven wheel for increasing speed, the driving wheel is meshed with the driven wheel, the driving wheel is coaxially connected with the miniature impeller, and the driven wheel is coaxially connected with the upper copper grid plate of the miniature friction generator.
Further, the energy storage device comprises a rectifying unit, an energy storage unit, a voltage stabilizing unit and a charging unit; the input end of the rectifying unit is connected with the miniature friction generator through a wire and is used for integrating alternating current generated by the generator into direct current; the output end of the rectifying unit is sequentially and electrically connected with the energy storage unit, the voltage stabilizing unit and the charging unit, the energy storage unit is used for primary storage of direct current, the voltage stabilizing unit is used for reintegrating the primary stored electric energy, and the charging unit is used for storing the integrated direct current. The rectification unit is a rectifier, the energy storage unit is a capacitor, the capacitor has the functions of filtering and coupling to enable the circulating current of a load to be more stable, the voltage stabilizing unit is a voltage stabilizing diode, and the current processed by the capacitor is rectified again to ensure that stable direct current is output; the charging unit is a storage battery and stores the integrated direct current.
Further, the liquid working medium is diethyl ether or R11 working medium, and the diethyl ether or R11 working medium and the diethyl ether are working medium with saturated vapor pressure sensitive to temperature change so as to improve the reciprocating frequency of the liquid working medium of the first pipeline.
Further, the upper container and the lower container are made of high-heat-conductivity metal materials.
Further, the upper container and the lower container are in airtight connection with the first pipeline and the second pipeline.
In the invention, the electromagnetic valve is arranged on a second pipeline, the second pipeline is a steam pipeline, when the liquid level of the upper container reaches a certain height, the electromagnetic valve is connected, the upper container and the lower container are communicated, so that the internal steam pressure reaches balance, and the liquid of the upper container falls back into the lower container under the action of gravity through the first pipeline; the miniature impeller is arranged on the first liquid pipeline, the liquid reciprocates up and down to cause the impeller to rotate clockwise and anticlockwise, and low-frequency kinetic energy is output through the transmission shaft, so that the miniature friction generator is indirectly driven to generate electricity, and the power of the miniature friction generator is determined by the speed and frequency of the liquid reciprocating up and down; the transmission speed increasing mechanism comprises a driving wheel and a speed increasing driven wheel, and can convert the low-frequency kinetic energy into high-frequency kinetic energy and output the high-frequency kinetic energy through a transmission shaft; the miniature friction generator continuously converts high-frequency mechanical energy into alternating current; the rectification unit is connected with the lead-out wire of the miniature friction generator and integrates alternating current generated by the generator into direct current; the energy storage unit is used for primary storage of direct current which is not directly available and is unstable; the voltage stabilizing unit integrates the electric energy into stable and usable electric energy; the storage battery in the charging unit is connected with the voltage stabilizing unit and stores the output direct current into the storage battery.
The working principle of the invention is as follows: after the liquid working medium in the lower container is heated by the heat source, the internal vapor pressure becomes larger, and a pressure difference is formed between the liquid working medium and the vapor pressure in the upper container, so that the liquid working medium in the lower container is forced to rise into the upper container along the first liquid pipeline, and the liquid working medium further rises into the upper container along the first pipeline; the liquid level in the lower container is reduced to a certain height, the liquid level in the upper container is increased to a certain height, the electromagnetic valve in the second steam pipeline is opened, so that the upper container and the lower container are communicated, the internal steam pressure is balanced, and at the moment, the liquid working medium which is increased to the upper container falls back to the lower container, so that the working medium moves from top to bottom; in the process of the up-down reciprocating motion of the first pipeline, the liquid working medium excites the miniature impeller arranged on the first liquid pipeline to generate clockwise and anticlockwise rotary motion, the low-frequency rotary motion is converted into high-frequency rotary motion through the transmission speed increasing mechanism, the generator is driven to generate current, and after rectification treatment of the rectifier, electric energy is stored in the storage battery to convert reciprocating mechanical energy into electric energy.
The beneficial effects are that: compared with the prior art, the invention has the following remarkable advantages: the invention utilizes the principle of low saturated vapor pressure difference of the system, the lower container is a heat source end, the upper container is a condensation end, liquid working medium and steam in the upper container work reciprocally through a first pipeline and a second pipeline at the heat source end and the condensation end, so that the liquid continuously impacts the miniature impeller generator, mechanical energy is converted into electric energy through reciprocal swing of the blades of the generator, and the electric energy is stored through a storage battery.
Drawings
FIG. 1 is a schematic view of a micro heat engine of the present invention;
FIG. 2 is a schematic illustration of the operation of the micro heat engine of the present invention;
FIG. 3 is a schematic diagram of a miniature triboelectric power generation according to the present invention;
FIG. 4 is a schematic representation of the stored energy of the present invention;
fig. 5 is a schematic structural diagram of a miniature friction generator according to the present invention.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 4, the small temperature difference micro heat engine combined with friction power generation comprises an upper container 1, a lower container 2, a water spraying tank 3, a heat source 4, an electromagnetic valve 5, a micro impeller 6, a first pipeline 7 and a second pipeline 8. The upper container 1 and the lower container 2 are communicated through a first pipeline 7 and a second pipeline 8, two ends of the first pipeline 7 are respectively connected with the bottoms of the side surfaces of the upper container 1 and the lower container 2, and two ends of the second pipeline 8 are respectively connected with the tops of the upper container 1 and the lower container 2 and are in airtight connection with each other; the upper container 1 and the lower container 2 are cubic, and the upper container 1 is slightly smaller than the lower container 2, and are formed by welding high-heat-conductivity metal materials.
The upper end face of the upper container 1 is provided with a heat pipe 101, an evaporation section of the heat pipe is embedded in the upper container 1, a condensation section is arranged above the upper end face of the upper container 1 and exposed in the air, a water spraying water tank 3 is arranged right above the upper container 1 and the heat pipe 101, the water spraying water tank 3 is arranged right above the condensation section and sprays water, and cooling of the condensation section is accelerated; a heat source 4 is arranged right below the lower container 2; in the whole system, the lower container 2 is an evaporation end, the upper container 1 is a condensation end, and the heat pipe 101 has the function of accelerating cooling; the lower container 2 is internally provided with diethyl ether with a certain height.
The second pipeline 8 is provided with an electromagnetic valve 5, after the liquid working medium in the lower container 2 is heated by the heat source 4, the saturated vapor pressure in the lower container 2 can be increased, and the liquid working medium is forced to flow through the first pipeline 7 and the miniature impeller 6 arranged on the pipeline to reach the inside of the upper container 1 under the action of the vapor pressure; the lower container 2 is continuously heated, working medium continuously flows into the upper container, when the vapor pressure in the upper container and the lower container reaches a certain value, the electromagnetic valve 5 is connected, the upper container and the lower container are communicated, the vapor pressure difference in the system disappears, the liquid working medium falls back to the lower container 2 again through the first pipeline 7, and the system completes a cycle.
The miniature impeller 6 is arranged at the corner below the first pipeline 7, and the liquid working medium moves from bottom to top along the liquid pipeline under the action of saturated steam pressure difference in the system to drive the miniature impeller 6 to rotate forward and backward; the transmission speed increasing mechanism comprises a driving wheel 9 and a driven wheel 10, the driving wheel 9 is meshed with the driven wheel 10, the driving wheel 9 is connected with the output end of a transmission shaft of the miniature blade 6, and then the low-frequency kinetic energy on the miniature blade 6 is converted into high-frequency mechanical energy through the driven wheel 10 and is output, the high-frequency mechanical energy is used for generating electricity by a miniature friction generator 11, and the speed and the frequency of the reciprocating motion of a liquid working medium in the system are decisive factors of the generating power of the generator.
Referring to fig. 5, the micro friction generator 11 includes a movable disk and a stationary disk fixedly provided at one side of the movable disk; the movable disc comprises an upper substrate disc 111 and an upper copper grating disc 112 arranged in the upper substrate disc 111, and as can be seen from the illustration, the upper substrate disc 111 is close to the outer side, the upper copper grating disc 112 is arranged on the inner side, and the upper copper grating disc 112 is connected with the output end of the transmission speed increasing mechanism; the static plate comprises a lower substrate plate 113, a lower copper grid plate 114 and a polyimide film 115, wherein the lower substrate plate 113 is arranged on the outer side, the lower copper grid plate 114 is arranged in the middle, and the polyimide film 115 is fixed on the inner side; the lower copper grating disk 114 is fixed in the lower substrate disk 113, the center of the lower copper grating disk 114 is coaxial with the center of the upper copper grating disk 112, the polyimide film 115 is arranged on the surface of the lower copper grating disk 113, which is opposite to the upper copper grating disk 112, and the upper copper grating disk 112 rubs with the polyimide film 115 when rotating along with the transmission speed increasing mechanism. The upper substrate plate 111 and the lower substrate plate 113 are made of acrylic. The miniature friction generator is used for driving the movable disc to rotate at a high speed after receiving high-frequency mechanical energy output by the output end of the driven wheel, the static disc is fixed on the substrate to keep static, at the moment, the copper grid of the movable disc rotates at a high speed along with the transmission shaft and rubs with a film fixed on the surface of the static disc, electrons are transferred between the copper grid and the film due to different binding capacities of different materials on electrons, and the generated charges are led out by copper wires and stored by the energy storage device.
The energy storage device comprises a rectifying unit 12, an energy storage unit 13, a voltage stabilizing unit 14 and a charging unit 15, wherein the rectifying unit 12 can convert disordered alternating current into direct current through a rectifier, the direct current is preliminarily stored through a capacitor of the storage unit 13, and after voltage stabilizing rectification is carried out again through a voltage stabilizing diode in the voltage stabilizing unit 14, stable available electric energy is stored in a storage battery of the charging unit 15.
The miniature impeller is connected to the first pipeline to obtain mechanical energy, and is accelerated by the transmission acceleration mechanism, and is connected with the miniature friction generator through the transmission shaft, the rear of the miniature friction generator is connected with the energy storage device, and the electric energy is stored in the storage battery after rectification, filtering and boosting.
Claims (10)
1. The utility model provides a little difference in temperature micro heat engine that combines together with friction electricity generation which characterized in that: comprises an upper container (1) and a lower container (2); the liquid working medium is filled in the lower container (2), a first pipeline (7) and a second pipeline (8) which are communicated are respectively arranged between the upper container (1) and the lower container (2), a miniature impeller (6) for generating mechanical energy is arranged on the first pipeline (7), and the liquid working medium flows through the miniature impeller (6) through the first pipeline (7); the second pipeline (8) is provided with an electromagnetic valve (5) for balancing internal vapor pressure; one side of the miniature impeller (6) is provided with a miniature friction generator (11) for converting mechanical energy into electric energy, and a transmission shaft of the miniature impeller (6) is connected with a rotating shaft of the miniature friction generator (11) through a transmission speed increasing mechanism; one side of the miniature friction generator (11) is connected with an energy storage device for storing electric energy;
a heat source (4) for heating the liquid working medium is arranged under the lower container (2), after the liquid working medium in the lower container (2) is heated by the heat source (4), the internal saturated vapor pressure becomes large, and a pressure difference is formed between the internal saturated vapor pressure and the vapor pressure in the upper container (1), so that the liquid working medium in the lower container (2) is forced to rise to the upper container (1) along a first pipeline (7); the electromagnetic valve (5) is opened, so that the upper container and the lower container are communicated, the internal steam pressure is balanced, and the liquid working medium rising to the upper container (1) falls back to the lower container (2) along the first pipeline (7) by means of gravity; in the process of up-and-down reciprocating motion of the first pipeline (7), the liquid working medium excites the micro impeller (6) to rotate clockwise and anticlockwise.
2. A small temperature difference micro heat engine combined with friction electricity generation according to claim 1, characterized in that: a water spraying water tank (3) for cooling is arranged right above the upper container (1); two ends of the first pipeline (7) are respectively connected with the bottoms of the side surfaces of the upper container (1) and the lower container (2), and two ends of the second pipeline (8) are respectively connected with the tops of the upper container (1) and the lower container (2).
3. A small temperature difference micro heat engine combined with friction electricity generation according to claim 2, characterized in that: the upper end face of the upper container (1) is embedded with a plurality of heat pipes (101), the heat pipes (101) are vertically arranged, an evaporation section of each heat pipe (101) is positioned inside the upper container (1), and a condensation section of each heat pipe (101) is arranged in an air environment.
4. A small temperature difference micro heat engine combined with friction electricity generation according to claim 1, characterized in that: the miniature friction generator (11) comprises a movable disc connected with the transmission speed increasing mechanism and a static disc fixedly arranged on one side of the movable disc; the movable disc comprises an upper substrate disc (111) and an upper copper grating disc (112) arranged in the upper substrate disc (111), and the upper copper grating disc (112) is connected with the output end of the transmission speed increasing mechanism; the static disc comprises a lower substrate disc (113), a lower copper grating disc (114) and a polyimide film (115), wherein the lower copper grating disc (114) is fixed in the lower substrate disc (113), the lower copper grating disc (114) is coaxial with the circle center of the upper copper grating disc (112), the polyimide film (115) is arranged on the surface of the lower copper grating disc (113) opposite to the upper copper grating disc (112), and the upper copper grating disc (112) rubs with the polyimide film (115) when rotating along with the transmission speed increasing mechanism.
5. A small temperature difference micro heat engine combined with friction electricity generation according to claim 1 or 4, characterized in that: the transmission speed increasing mechanism comprises a driving wheel (9) and a driven wheel (10) for increasing speed, the driving wheel (9) is meshed with the driven wheel (10), the driving wheel (9) is coaxially connected with the miniature impeller (6), and the driven wheel (10) is coaxially connected with an upper copper grid plate (112) of the miniature friction generator (11).
6. A small temperature difference micro heat engine combined with friction power generation according to claim 1, characterized in that: the energy storage device comprises a rectifying unit (12), an energy storage unit (13), a voltage stabilizing unit (14) and a charging unit (15); the input end of the rectifying unit (12) is connected with the miniature friction generator (11) through a wire and is used for integrating alternating current generated by the generator into direct current; the output end of the rectifying unit (12) is sequentially and electrically connected with the energy storage unit (13), the voltage stabilizing unit (14) and the charging unit (15), the energy storage unit (13) is used for primary storage of direct current, the voltage stabilizing unit (14) is used for integrating the primary stored electric energy again, and the charging unit (15) is used for storing the integrated direct current.
7. A small temperature differential micro heat engine in combination with triboelectric power generation as claimed in claim 6, wherein: the rectifying unit (12) is a rectifier, the energy storage unit (13) is a capacitor, the voltage stabilizing unit (14) is a voltage stabilizing diode, and the charging unit (15) is a storage battery.
8. A small temperature difference micro heat engine combined with friction power generation according to claim 1, characterized in that: the liquid working medium is diethyl ether or R11 working medium.
9. A small temperature difference micro heat engine combined with friction power generation according to claim 1, characterized in that: the upper container (1) and the lower container (2) are made of high-heat-conductivity metal materials.
10. A small temperature difference micro heat engine combined with friction power generation according to claim 1, characterized in that: the upper container (1) and the lower container (2) are connected with the first pipeline (7) and the second pipeline (8) in a sealing way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111508265.9A CN114352463B (en) | 2021-12-10 | 2021-12-10 | Small-temperature-difference micro heat engine combined with friction power generation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111508265.9A CN114352463B (en) | 2021-12-10 | 2021-12-10 | Small-temperature-difference micro heat engine combined with friction power generation |
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| Publication Number | Publication Date |
|---|---|
| CN114352463A CN114352463A (en) | 2022-04-15 |
| CN114352463B true CN114352463B (en) | 2024-03-26 |
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| CN202111508265.9A Active CN114352463B (en) | 2021-12-10 | 2021-12-10 | Small-temperature-difference micro heat engine combined with friction power generation |
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2021
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