173results about "Kinetic-electric generator" patented technology

The invention provides a skin-core structure moisture power generation yarn, the yarn at least comprises a metal core layer, a wrap yarn layer and a conductive coating, the wrap yarn layer comprises lithium chloride doped polyvinyl alcohol fibers and tightly wraps the periphery of the metal core layer through conjugate electrostatic spinning, and the conductive coating is nano conductive silver paint. And the conductive coating is not in direct contact with the metal core layer. The preparation method comprises the following steps: firstly, adding lithium chloride powder into deionized water, stirring at normal temperature until complete dissolution, then adding polyvinyl alcohol powder, heating and stirring until complete dissolution, standing and defoaming to prepare a wrap yarn layer spinning solution; performing conjugate electrostatic spinning on the prepared skin layer spinning solution to form nanofiber wrap yarn on the outer layer of the metal core; nano conductive silver paint is sprayed on the surface of the wrap yarn layer, and the wrap yarn layer is dried in the air. The yarn has good flexibility, and has excellent surface waterproof and moisture permeable performance, stability and reusability while forming stable output current and voltage.

The invention discloses a three-dimensional bio-based hierarchical pore nanocarbon water photovoltaic power generation material as well as a preparation method and application of the three-dimensional bio-based hierarchical pore nanocarbon water photovoltaic power generation material. The specific technical scheme of the preparation method comprises the following steps: firstly, preparing an acetic acid solution containing chitosan, glucose and borax, and standing the solution at room temperature for 24 hours; then, freeze-drying the precursor solution, and pre-carbonizing xerogel in a drying oven for a certain time; and finally, adding a certain amount of water into the pre-carbonized dry gel, putting the pre-carbonized dry gel into a reaction kettle with a polytetrafluoroethylene lining, reacting for a certain time at a certain temperature, dialyzing the obtained wet gel, and drying at normal temperature and normal pressure to prepare the nano carbon aerogel with the hierarchical pore structure. The nano carbon aerogel has good hydrophilicity, abundant surface charges and a hierarchical pore structure, and is a low-cost and excellent water evaporation induced power generation material.

The invention provides a hydrogel-based radiation refrigeration moisture power generation material and a preparation method and application thereof, and belongs to the technical field of moisture power generation materials.The hydrogel-based radiation refrigeration moisture power generation material comprises a nano carbon black layer, a conductive hydrogel layer and a titanium dioxide layer which are sequentially stacked; the conductive hydrogel layer comprises a hydrogel matrix, a conductive filler and a temperature-sensitive material; the temperature-sensitive material comprises at least one of poly (N-isopropylacrylamide), a polyethylene glycol and polylactic acid copolymer and vanadium oxide; the cross section of the hydrogel-based radiation refrigeration moisture power generation material is of a W-shaped structure. The conductive hydrogel layer is of a three-dimensional network structure with conductivity and temperature-sensitive characteristics; the titanium dioxide layer realizes efficient sunlight reflection, the nano carbon black layer enhances heat conduction and conductivity, and the W-shaped structure promotes moisture flow and circulation; the multifunctional power generation device prepared based on the hydrogel-based radiation refrigeration moisture power generation material has good radiation refrigeration and moisture power generation performance, and is excellent in stability and durability.

The invention belongs to the technical field of renewable resource utilization and new energy, and relates to a wood-based water photovoltaic power generation material and a preparation method and application thereof.The wood-based water photovoltaic power generation material is prepared by taking natural wood as a raw material, performing chemical modification treatment and combining directional freeze drying and salting-out treatment. The wood-based water photovoltaic power generation material with relatively good mechanical strength is prepared by using the wood-based material as a raw material, the wood-based material has a highly-oriented porous structure, and under the conditions of 25 DEG C, standard atmospheric pressure and relative air humidity RH 30%, a 200-mesh copper mesh is used as an electrode, and the open-circuit voltage of a nano power generation device obtained by assembling in deionized water reaches 110 mV, and the short-circuit circuit reaches 0.74 mA. The material is simple in preparation process and wide in application scene, adopts natural high polymer materials as raw materials, has the environment-friendly advantages of reproducibility and biodegradability, and has a wide application prospect in the field of new energy materials.

The invention is applicable to the technical field of new energy materials and water treatment, and provides solar-driven multifunctional composite hydrogel and a preparation method and application thereof, the multifunctional composite hydrogel comprises dual-network hydrogel, a nanofiber skeleton and functional particles; the double-network hydrogel is formed by interpenetrating and cross-linking a polyelectrolyte hydrogel and a temperature-sensitive hydrogel; the functional particles are loaded in a three-dimensional porous network structure formed by the double-network hydrogel and the nanofiber skeleton. When the device floats on the surface of a water body, efficient solar interface evaporation water production, stable power generation based on the water photovoltaic effect and efficient adsorption removal of nitrogen and phosphorus nutritive salt in the water body can be synchronously achieved under illumination, and therefore algae growth is inhibited. According to the invention, the integrated collaborative management of water collection, energy conversion and ecological restoration is realized, the preparation process is simple, the environmental adaptability is high, and an innovative scheme is provided for solving the distributed water-energy supply and ecological environment problems in coastal, island and other regions.

The application discloses a kind of efficient silicon-based water-voltage devices and preparation method thereof, the silicon-based water-voltage device is composed of positive electrode, hole selective transport layer, silicon nanostructure, silicon substrate and negative electrode from top to bottom, the top end part of the silicon nanostructure is embedded in the hole selective transport layer.This application introduces hole selective transport layer in the interface of silicon nanostructure / positive electrode, uses the internal electric field formed by high work function hole selective transport layer in interface to prevent the migration of electron to positive electrode, realizes the selective transport of hole, reduces interface recombination loss to improve charge separation and collection efficiency;At the same time, the hole selective transport layer introduced realizes the transition of silicon nanostructure and positive electrode from point contact to surface contact, reduces the contact resistance of positive electrode interface, further promotes the efficient transport of hole at interface, thereby increases the collection efficiency of electrode to hole, under the synergistic effect of the above, effectively improve the electrical properties of silicon-based water-voltage device.

The invention discloses an ionic gel moisture power generation and power supply system and a preparation method and application thereof, and belongs to the technical field of functional materials and waste gas monitoring. According to the system, dopamine, 1-vinyl imidazole, n-bromobutane and acrylic acid are used as raw materials, and an ionic gel moisture power generation material is prepared through an ultraviolet curing process; carbon cloth is used as an electrode to assemble a moisture power generation device, the device is integrated with a plastic pipe, and stable power support is provided for a waste gas monitoring sensor in the pipe. The ionic gel prepared by the invention has excellent cohesiveness, moisture responsiveness, ionic conductivity and mechanical stability, and the ultraviolet curing process is efficient and environment-friendly; the moisture power generation device can utilize environmental moisture to continuously generate power, solves the problem that a traditional waste gas monitoring sensor depends on an external power supply or frequently replaces a battery, is adaptive to a complex application scene of a plastic pipe, and has a wide industrial application prospect.

The invention discloses a droplet nanometer friction / photo-thermoelectric hybrid power generation device and a preparation method thereof. The hybrid power generation device comprises a liquid drop power generator part and a photo-thermal power generator part, wherein the liquid drop power generator part is mainly formed by integrating a capacitor and liquid drop friction power generation, and the photo-thermal power generator part is mainly composed of a temperature difference semiconductor. The preparation method of the device mainly comprises the following steps: carrying out surface treatment on a zinc sheet, so that a layer of candle ash is uniformly attached to the surface of the zinc sheet to obtain the treated zinc sheet; uniformly coating a layer of polydimethylsiloxane (PDMS) on the surface of the candle ash, and heating in an oven for two hours for curing and forming; fixing a copper electrode on the surface of the PDMS, and welding a lead on the copper electrode and the zinc sheet; the temperature difference semiconductor and the zinc sheet are combined together through heat-conducting silicone grease; a radiation cooling plate is attached to the cold end of the temperature difference semiconductor; and wires are respectively welded at the hot end and the cold end of the temperature difference semiconductor. The droplet nanometer friction / photo-thermoelectric hybrid power generation device provided by the invention is simple in structure and convenient to manufacture, can continuously and stably output direct current voltage without depending on single weather, and has a wide application prospect.

The invention provides an ion selective membrane, a preparation method thereof and a method for synchronously recovering resources and energy in neutralization reaction. The ion selective membrane takes a two-dimensional nano material as a main body skeleton, one-dimensional nano materials are doped in the main body skeleton, and the one-dimensional nano materials and the one-dimensional nano materials as well as the one-dimensional nano materials and the two-dimensional nano materials are cross-linked through a cross-linking agent; the two-dimensional nano material is MXene, graphene oxide, molybdenum disulfide, vermiculite, a two-dimensional metal organic framework material or a two-dimensional covalent organic framework material; the one-dimensional nano material is sodium carboxymethyl cellulose, sodium hydroxy propyl cellulose or aramid nano fiber. The ion selective membrane enables H < + > to selectively pass through and coexisting ions such as Na < + > and the like not to pass through, so that the ion selective membrane can be used for power generation in an acid-base neutralization reaction, chemical energy is converted into electric energy, water and a salt solution are respectively obtained in an acid chamber and an alkali chamber, and resources and energy are synchronously recycled.

This invention discloses a solar-driven integrated device for collecting freshwater and droplet energy, comprising: a photothermal evaporation mechanism including a seawater tank, a light-transmitting part disposed on the seawater tank, a middle-layer collection part disposed on the light-transmitting part, a high-layer collection part disposed on the light-transmitting part, a floating part disposed within the seawater tank, a flow guide part disposed on the seawater tank, and an isolation part disposed on the flow guide part; and a droplet power generation mechanism including a storage part disposed within the seawater tank, a protection part disposed within the storage part, a power generation part disposed on the protection part, and an adjustment part disposed on the light-transmitting part. This solar-driven integrated device for collecting freshwater and droplet energy combines a triboelectric nanogenerator with photothermal interfacial evaporation, enabling the simultaneous use of solar energy for seawater desalination and freshwater collection, while also collecting droplet energy, thus converting mechanical energy into electrical energy and improving energy utilization efficiency.

This invention discloses a self-powered, controllable, self-destructing microcapsule for monitoring intragastric pressure, belonging to the field of medical capsule technology. It aims to solve problems existing in current intragastric monitoring capsules, such as short power lifespan, uncontrollable gastric retention and expulsion, and bulky size and difficulty in swallowing due to modular design. The capsule includes a capsule shell, within which are sequentially arranged a retention unit, a circuit unit, and a primary battery unit. The retention unit ensures the capsule remains in the stomach, the circuit unit monitors intragastric pressure, and the primary battery unit supplies power to the circuit unit. This invention integrates self-powering, long battery life, controllable retention, and high miniaturization, providing a novel solution with significant clinical translational value for non-invasive, long-term, and safe monitoring of intragastric pressure.

The application discloses a kind of super-wetting regulation and control device and process of high-efficiency oil-water separation filter membrane, specifically relates to oil-water separation equipment technical field, including installation shell, the upper portion of the installation shell is provided with pretreatment module, the inner cavity middle part of the installation shell is provided with separation main body module, the inner cavity lower portion of the installation shell is provided with self-generating module, the lower portion of the outer surface of the installation shell is provided with battery, the upper portion of the battery is provided with electric heating regulation and control module fixedly installed on the outer surface of installation shell.The super-wetting regulation and control device of the high-efficiency oil-water separation filter membrane disclosed in the application can regulate the wettability of the separation membrane by changing the temperature of the separation membrane according to the separation requirements of oil-water mixture through the setting of electric heating regulation and control module and patterned super-amphiphobic / heat-responsive super-wetting droplet separation membrane, realize the efficient separation of different phase state oil-water, and improve the adaptability and separation efficiency of the device.

The invention relates to a passive driving microcapsule movement color development method, and belongs to the field of sensor detection. According to the method, sweat generated during movement of a human body drives a photovoltaic device to spontaneously generate electric potential, the electric potential directly acts on microcapsule dispersion liquid to drive directional movement of black and white particles in the microcapsule dispersion liquid, and visual color development response without an external power source is achieved. The method mainly comprises the steps of sweat induced power generation, particle electrophoresis driving and ion concentration associated color development. The problems that an existing sweat detection technology depends on an external power source, the equipment size is large, and real-time visual reading cannot be achieved are solved, and the device is mainly applied to the fields of real-time sweat electrolyte analysis in exercise physiological monitoring, autonomous color development change of wearable medical equipment, passive sensing display integrated systems based on ion concentration gradient and the like.

The application provides a double-feed reverse electrodialysis power generation system, which comprises a heat generation module, a working condition adjusting module and a concentration difference power generation module. The heat generation module converts heat energy into chemical potential energy between salt solutions with different concentrations. The working condition adjusting module adjusts the temperature, pressure, concentration and flow of the dilute solution and the concentrated solution according to the actual working condition. The concentration difference power generation module converts the chemical potential energy between the salt solutions into electric energy through a reverse electrodialysis process. The conversion from heat energy to electric energy is realized through the above three processes. The application has the advantages of simple and reliable structure, low control difficulty, low noise and high reliability.

The application discloses a method for improving ion tolerance of self-electrophoretic driving micro-nanomotor and application thereof, and belongs to the technical field of micro-nanomotor.The method is characterized in that a metal organic framework (MOF) pore structure material is used to modify the surface of a self-electrophoretic driving micro-nanomotor, so that the ion tolerance of the self-electrophoretic driving micro-nanomotor in a high-salt environment is significantly improved.Compared with a self-electrophoretic driving micro-nanomotor without the surface modification of the MOF pore structure material, the ion tolerance of the self-electrophoretic driving micro-nanomotor with the surface modification of the MOF pore structure material can be improved by 266 times, so that the self-electrophoretic driving micro-nanomotor can keep stable movement under an electrolyte concentration of up to 150 mM.The ion quenching problem of the micro-nanomotor driven by the electrophoresis mechanism in a high-salt solution is solved, and the driving efficiency is improved.

The application provides a two-dimensional confined ionic liquid hetero-composite membrane and a preparation method and application thereof, and belongs to the technical field of renewable energy utilization.The preparation method is as follows: two-dimensional nanosheets are dispersed in a solvent to prepare a two-dimensional nanosheet dispersion liquid; the two-dimensional nanosheet dispersion liquid is filtered on a porous substrate by a suction filtration method to prepare a two-dimensional nanosheet assembly membrane; an ionic liquid solution is coated on the surface of the two-dimensional nanosheet assembly membrane, the ionic liquid is confined in the two-dimensional nanosheet assembly membrane to form a two-dimensional confined ionic liquid composite membrane, and an ionic liquid layer is formed above; a hydrophilic polymer solution is coated on the side of the porous substrate far from the ionic liquid layer to prepare a hydrophilic layer, and a two-dimensional confined ionic liquid hetero-composite membrane is obtained.The prepared hetero-composite membrane has different functional layers, the application range of the material is widened through the design of the functional layers, the hetero-composite membrane has good environmental adaptability, and has great application potential in future moisture power generation technology.

The application belongs to the field of electrochemical detection, and particularly relates to a water-vapor self-powered sensor for lincomycin detection and a preparation method thereof. A glass substrate is used as a substrate, a copper foil tape is used as a positive electrode and a negative electrode, a ZnO nanowire array and Ce-MOF are used as power generation materials to prepare a water-vapor generator, and a lincomycin aptamer is assembled to construct a light-assisted water-vapor self-powered sensor. The power generation material is a composite material of the ZnO nanowire array and the Ce-MOF. The light assistance is combined into the water-vapor self-powered sensor, and the water-vapor self-powered sensor significantly improves the generated electric output under the light assistance. The application widens the application of the ZnO nanowire array and the Ce-MOF in water-vapor induced power generation, and provides a new strategy for electrochemical detection. The constructed light-assisted water-vapor self-powered sensor has a wide detection range, high sensitivity, low detection limit and low detection cost.

The application provides an ionic thermoelectric film, a preparation method thereof and an ionic thermoelectric power generation device, and belongs to the technical field of thermoelectric materials. The material of the ionic thermoelectric film is graphene oxide nanosheet or vermiculite nanosheet. The height of the ion transmission channel of the ionic thermoelectric film is sub-nanometer, so that the ionic thermoelectric film has nanometer ionic capillary condensation effect, and the thermoelectric potential and output power density of the ionic thermoelectric power generation film can be greatly improved.

The invention relates to the field of new energy power generation, and discloses a closed water evaporation power generation device and a preparation method thereof. The defects that an existing water evaporation power generation device is prone to being interfered by the external environment and consumes water continuously due to the open design are overcome by adopting a closed container and a heterogeneous wettability composite structure composed of a water evaporation power generation material and a layered material. The preparation method comprises the following steps: assembling the surface-modified evaporation power generation material and the layered material on a substrate subjected to hydrophilic treatment, and packaging in a closed container. The closed water evaporation power generation device has the remarkable advantages of being high in electrical performance, free of interference of weather conditions and environment humidity factors, free of extra water resource consumption and the like, and has wide application prospects in the fields of extreme environment power supply and the like.

The invention discloses an all-weather and stretchable ionic liquid gel-based moisture power generation device and a preparation method thereof.The device is of a sandwich structure and comprises an ionic liquid gel moisture power generation functional layer, and a moisture-permeable top electrode and a moisture-resistant bottom electrode are arranged on the two sides of the ionic liquid gel moisture power generation functional layer respectively; the components of the ionic liquid gel moisture power generation functional layer comprise a polymer skeleton with electronegativity and a hygroscopic ionic liquid dispersion medium coupled with the polymer skeleton. Wherein the contact interface of the electrode and the functional layer has a charge adsorption effect generated by a weak oxidation-reduction reaction. The material components of the polymer network and the ionic liquid dispersion medium are regulated and controlled through gel molecular engineering, so that the functional layer has excellent mechanical properties and multifunctional characteristics; and meanwhile, a built-in electric field is introduced into an electrode / gel interface, so that the migration behavior of carriers generated by moisture can be effectively regulated and controlled, and the dependency of a moisture power generation technology on a high-humidity environment is reduced.

Embodiments of the present disclosure are directed to an electro-hydrodynamic air mover apparatus that includes a pair of isolators, a collector electrode, an emitter electrode, and a pair of conductive metal terminals. Each end of the collector electrode and each end of the emitter electrode are attached to a respective isolator of the pair of isolators. Each conductive metal terminal is placed in a slot of the respective isolator and is electrically connected to the emitter electrode. Each conductive metal terminal is configured for applying a respective voltage of a power supply. A distance from the emitter electrode to the collector electrode along an outer surface of each isolator is equal to or greater than a threshold distance set to prevent an electrical arcing between the collector electrode and the emitter electrode.

The invention is applicable to the technical field of energy conversion, and provides a multifunctional flexible ionic gel generator and a preparation method thereof, and the multifunctional flexible ionic gel generator comprises an upper layer carbon electrode, a flexible ionic gel layer and a lower layer carbon electrode which are sequentially connected from top to bottom. The preparation method of the flexible ionic gel layer comprises the following steps: mixing a matrix material, a thermoelectric response material, a moisture absorption material and deionized water, carrying out a cross-linking reaction, and standing in a mold to obtain the flexible ionic gel layer. Lithium chloride, sodium polystyrenesulfonate and other materials are introduced into an acrylamide and carboxymethyl cellulose hydrogel matrix, simple crosslinking is performed to form flexible ionic gel, and meanwhile low-grade heat energy and moisture energy are collected and converted into electric energy. On the basis of cooperation of thermoelectricity and moisture power generation, collection of chemical energy and response to pressure are completed, and multiple functions are achieved.

The application discloses an enhanced water-vapor power generation device and a preparation method thereof, and belongs to the technical field of water evaporation power generation. The enhanced water-vapor power generation device comprises a substrate and reduced graphene oxide fibers loaded on the substrate, and the two ends of the substrate are connected with conductive parts; wherein the reduced graphene oxide fibers are compounded with a high-molecular conductive polymer, and the high-molecular conductive polymer is made of a poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) solution with enhanced conductive performance. The enhanced water-vapor power generation device can effectively improve the structural stability of the reduced graphene oxide material under long-term hydration, avoid or reduce the occurrence of structural expansion or peeling, and enhance the stability of the material structure. The poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) and the reduced graphene oxide form a three-dimensional continuous conductive path, reduce the interface contact impedance, accelerate the electron migration rate of the water-vapor power generation device, and thus improve the power generation performance of the device.

The invention provides a radiation refrigeration-hydrogel power generation composite material and a preparation method and application thereof, and belongs to the technical field of crossing of novel energy materials and intelligent temperature control materials, the radiation refrigeration-hydrogel power generation composite material comprises a radiation refrigeration layer and a hydrogel power generation layer, the radiation refrigeration layer comprises a PVDF / PPy porous membrane, and the surface of the PVDF / PPy porous membrane is provided with a PPy coating; the hydrogel power generation layer comprises chitosan / acrylic acid hydrogel, lithium chloride and nano carbon black. Through the design of a double-layer heterogeneous structure and the construction of a porous conductive network, radiation refrigeration and moisture power generation are vertically coupled, and an energy closed loop of passive heat dissipation and active power generation is achieved. Meanwhile, core support is provided for construction of a zero-carbon refrigeration technical system, a brand new technical path is provided in the fields of building energy conservation, cold-chain logistics, intelligent wearable equipment and the like, fossil energy consumption is reduced, continuous energy supply is achieved through environmental energy collection, and the requirements for global energy transformation and sustainable development are met.

The invention discloses a gravity-driven self-cleaning solar water-electricity co-production interface evaporation device which comprises an evaporation unit and a mechanical supporting unit. The mechanical supporting unit comprises a base and a rotating shaft, the central area in the length direction of the evaporation unit is connected to the rotating shaft, the hydrophobic photo-thermal surface faces upwards, and the single side of the evaporation unit is immersed in a solution; the evaporation unit is a delignification balsa wood sheet, one side of the evaporation unit is provided with a hydrophobic photo-thermal surface, the hydrophobic photo-thermal surface is obtained by mixing and spraying a carbon nanotube (CNT), polydimethylsiloxane (PDMS), 1H, 1H, 2H, 2H-perfluorooctyltrichlorosilane and n-hexane, and the two ends of the hydrophobic photo-thermal surface are provided with copper nets. The core of the invention lies in the unique seesaw type self-cleaning structure and the integrated photovoltaic power generation module. Under continuous solar driving, the SWE-SIE can automatically turn over to be immersed into saline water to be dissolved when the evaporation surface reaches a supersaturated state through periodic dynamic inclination, so that attenuation of evaporation performance caused by salt scaling is effectively inhibited, and long-term stable operation of a device is ensured. And meanwhile, synchronous water photovoltaic power generation is realized by virtue of a fluid pump effect formed by evaporation.

The application discloses a self-powered flexible water content sensor based on water immersion effect and a preparation method and application thereof, and the sensor comprises a stretchable flexible substrate and a composite functional layer on the substrate, and the composite functional layer is provided with positive and negative electrodes and an encapsulation layer. The method comprises the following steps: step 1, preparing the stretchable flexible substrate on a rigid substrate; step 2, preparing the composite functional layer on the stretchable flexible substrate; step 3, preparing the positive and negative electrodes on the composite functional layer; step 4, preparing the encapsulation layer on the composite functional layer; and step 5, peeling off the stretchable flexible substrate. The sensor can be used for real-time monitoring of plant water information in the process of plant growth. The application can realize high-precision in-situ nondestructive sustainable monitoring of plant water information, and opens up a new direction for the development of intelligent agriculture.

The invention relates to the technical field of photosynthesis power generation, and discloses a device and a method for realizing photosynthesis power generation based on a liquid metal-semiconductor junction. The negative electrode comprises a metal-semiconductor junction (MSJs) consisting of liquid metal and a silicon wafer; the thylakoid suspension is positioned between the positive electrode and the negative electrode and is extracted from spinach. The liquid metal is eGaInSn room temperature liquid metal. The method comprises the following steps: extracting crushed chloroplasts and thylakoid which are rich in photosynthetic devices such as a photosystem I (PSI), a photosystem II (PS) and the like in spinach leaves by using a salt solution separation method; in combination with flexible transparent indium tin oxide (ITO), the photosynthesis power generation device with the structure of Si / LMs / BBY / ITO is manufactured. The liquid metal and the silicon wafer are combined to obtain the MSJs as the negative electrode, the electron transfer efficiency of the power generation device is enhanced, the preparation is simple, the performance is excellent, and green power generation is realized.

The utility model provides a self-powered floor heating water temperature gauge based on water friction nanometer power generation, which relates to the field of micro energy collection in intelligent buildings and comprises an energy storage module and an energy conversion module which are positioned in the floor heating water temperature gauge, and an energy collection module which is arranged on a floor heating pipeline, the energy collection module is a pipeline water energy collection device based on a triboelectric nano-generator, the triboelectric nano-generator comprises a PTFE pipeline and an annular conductive metal electrode, the energy collection module is connected with the energy storage module through the energy conversion module, and the energy storage module is used for providing electric energy for operation of the floor heating water temperature gauge. According to the utility model, household floor heating water energy can be fully utilized and converted into energy of the floor heating water temperature gauge to be provided, so that the self-power-supply effect is achieved.

The invention relates to the technical field of engines, in particular to a magnetofluid-water ramjet mixed cross-medium engine which comprises a mounting protective cover, a magnetofluid power generation propelling system, a conveying spray pipe, a water ramjet engine system, a first adjusting nozzle and a first motor. The conveying spray pipe and the water ramjet engine system are arranged in the installation protective cover, and the water ramjet engine system is connected to the upper end of the conveying spray pipe. Metal fuel powder arranged in the water ramjet engine system can be timely and sufficiently supplemented, so that the water ramjet engine system can stably run, the fuel powder in the water ramjet engine system can be fully contacted and reacted with clear water in the running process, the contact mixing reaction efficiency is high, and the service life of the water ramjet engine system is prolonged. The aircraft is simple in structure, rapid and thorough in response, capable of providing sufficient power in water and capable of assisting in providing power when flying in the air, so that the aircraft flies stably and has a longer flight stroke.

The invention relates to an AlGaN deep ultraviolet LED waste heat recovery system based on water evaporation power generation. The AlGaN deep ultraviolet LED waste heat recovery system is characterized in that a heat source module is formed by welding and packaging AlGaN deep ultraviolet LED chips arranged in an array on a metal substrate; a thermoelectric generator of the thermoelectric conversion module is connected with the metal substrate through a heat conduction material; a porous radiator of the heat dissipation and evaporation power generation module is connected with the cold end of the thermoelectric generator; the energy collection circuit is electrically connected with the thermoelectric generator and the water evaporation power generation module. The problem of thermal failure of the deep ultraviolet LED under a high-power working condition is perfectly solved, and an innovative solution with efficient thermal management and energy recovery is provided for electronic equipment in an extreme environment.