CN110417295A - A kind of power generating device based on liquid evaporation - Google Patents
A kind of power generating device based on liquid evaporation Download PDFInfo
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- CN110417295A CN110417295A CN201910663665.3A CN201910663665A CN110417295A CN 110417295 A CN110417295 A CN 110417295A CN 201910663665 A CN201910663665 A CN 201910663665A CN 110417295 A CN110417295 A CN 110417295A
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- liquid
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N3/00—Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom
Abstract
A kind of power generating device based on liquid evaporation, belongs to power generator technical field.The device relies on the capillary phenomenon of liquid, produces electricl energy it in carbon nano-structured middle displacement.In order to maintain carbon nano-structured enough hydrophilies and evaporation efficiency, which is made and one piece of clean cloth is impregnated and dried in carbon black ink repeatedly.Cloth fiber is used to enhance the capillarity of liquid, and the carbon nano-particle in carbon black ink is deposited on fiber surface and liquid is made displacement and to generate voltage in the fibre.Relative to traditional pure carbon nano-structured, which also considerably reduces manufacture difficulty and cost while improving generating efficiency.The device when in use hangs down one end of the cloth of leaching ink in liquid naturally, after liquid climbs along fiber and to stablize, there is maximum generating efficiency near dry and wet line.The advantages that present invention has production simply, low in cost, environmental-friendly, reusable, supplies without outside resources.
Description
Technical field
It is the present invention relates to a kind of device that the natural characteristic using water isopolarity liquid generates electricity, in particular to a kind of to utilize pole
Property liquid generating larger voltage having the carbon nano-structured surface orientation of enhancing capillarity mobile, and low in cost, system
Standby simple power generator.
Background technique
In 2001, Kr á l et al. theoretical prediction for the first time water or polar liquid when carbon nano tube surface is mobile had electricity
Pressure is led to a phenomenon, and mechanism is considered as the phonon driving phenomenon similar to electronics in thermoelectric power generation.Polar liquid is in carbon nanometer
Flowing will drive the electron cloud displacement in carbon structure in structure, and generate potential difference and electric current, and the ion in liquid can
To enhance this effect (P. Kr á l et al., Phys. Rev. Lett., 2001, vol 86, pp131-134).And
Afterwards, Ghosh et al. was tested for the first time using carbon nanotube in 2003 and is confirmed the theory of Kr á l et al., produced about 30 mV's
Voltage, and it is larger to the flow velocity of liquid, polarity and ion concentration dependence to have summed up the voltage generated, to the viscosity of liquid according to
The weaker conclusion of bad property (S. Ghosh et al., Science, 2003, vol 299, pp1042-1044).Hereafter ten
The various liquid that many people have studied water and take water as a solvent in several years are carbon nano-structured in carbon nanotube, graphene etc.
Surface flow and the test for generating voltage and current.And in 2017, Xue et al. is the substrate of water flowing using ethyl alcohol carbon black,
Its surface is subjected to oxygen plasma treatment to enhance capillarity, finally produces the voltage of about 1 V and the electricity of about 100 nA
Stream, be added significantly to this phenomenon actual application prospect (G. Xue et al., Nat. Nanotechnol., 2017, vol
12, pp317-321).But there is device, the assembly process is complicated, carbon film application temperature is high and base material is limited big etc. ask
Topic.
Summary of the invention
In order to overcome carbon nanomaterial to make the hydrophobic disadvantage of high cost and carbon material naturally, we use common
Cloth is substrate, and hydrophilic fibers are natural hydrophilic skeleton in cloth, the capillarity of material substrate is added significantly to, so liquid
Carbon nano-structured surface also can be more quickly flowed across with bigger flow, thus with very simple and cheap mode improves
Generated output.
The technical solution adopted by the present invention are as follows: a kind of power generating device based on liquid evaporation, the power generating device are to impregnate
Carbon black ink and the leaching ink cloth dried, soaking the substrate that black cloth uses is the woven cloth of hydrophilic fibers.
A kind of preparation method of the power generating device based on liquid evaporation, comprising the following steps:
(1) cloth is cut into cloth, cleans and dries；
(2) above-mentioned cloth was completely submerged in carbon black ink after 3-5 hours and takes out naturally dry；
(3) black cloth must be soaked more than four times, after drying by repeating step 2.
Carbon black ink is common commercial inks, and hydrophilic fibers have parent well using natural fibers such as cotton, fiber crops
Aqueous energy.
The present invention is attached to cloth fiber surface to make using immersing the cloth cut in carbon black ink repeatedly
It is carbon nano-structured.
The present invention uses the leaching Mo Buwei device for repeatedly impregnating carbon black ink using cloth for substrate and drying, and utilizes liquid
Spontaneous diffusion forms the concentration gradient of liquid in soaking black cloth with evaporation, and is generated electricity with this.Liquid can be pure water or other
Using polar molecule liquid as the solion of solvent, and its capillary phenomenon can be enhanced via cloth fiber and accelerate to spread.
By repeatedly soaking ink and drying to be formed and wrap the carbon nano-structured of cloth fiber, and liquid is enhanced with this
It is carbon nano-structured to generate electricity that capillary phenomenon flows through the spontaneous diffusion of liquid.
Carbon black ink is the carbon black ink for being dispersed in water carbon nano-particles.
Soak black cloth be will cloth cut molding after immersed in carbon black ink repeatedly and the process of naturally dry, formation wrap
Cloth fiber it is carbon nano-structured.
Fluid gradient G is the concentration gradient that liquid spreads in soaking black cloth and maintained by the evaporation of liquid, Jin Erfa
Electricity.
The principle of the present invention: since measuring fiber enhances the capillarity of water isopolarity liquid, so liquid can be with more
Big flow also more quickly flows across carbon nano-structured surface, thus with very simple and cheap mode improves power generation function
Rate., using for common burlap, numb material fiber is natural hydrophilic skeleton, is added significantly to the hair of material substrate for we
Spy uses, and increases the flow velocity and flow of liquid with this.And by infiltrating and drying in carbon black ink repeatedly by burlap, thus shape
At the nanometer carbon black structure for being wrapped in flaxen fiber, allow liquid flowed through while flowing in flaxen fiber it is carbon nano-structured from
And it produces electricl energy.Cause liquid flowing to generate potential difference using capillarity of the water isopolarity liquid in measuring fiber.It is logical
Black cloth will be soaked by crossing hangs in the liquid that hangs down vertically, maintains the liquid on soaking black cloth vertical direction using the evaporation and gravity of liquid
Concentration gradient, to maintain potential difference.It is found through experiment that it can be significantly increased when there is the ion of higher concentration in liquid
Generated output.
Since air humidity is excessively high or excessive use so that soaking is caused after black cloth surface liquid concentration gradient difference becomes smaller
Generated output declines phenomenon, can restore original generating capacity by the way that drying or again leaching are black, so the present invention can be multiple
It reuses.The voltage that single power generating device of the invention generates can achieve nearly 1 volt, and electric current can achieve nearly 10 microamperes,
And it can also continue to improve with electric current by the more power generating devices of serial or parallel connection its voltage.
The invention has the benefit that in order to maintain carbon nano-structured enough hydrophilies and evaporation efficiency, the device is logical
It crosses and one piece of clean cloth is impregnated in carbon black ink repeatedly and is dried and is made.The capillary that cloth fiber is used to enhance liquid is made
Being deposited on fiber surface with, the carbon nano-particle in carbon black ink makes liquid displacement and generate voltage in the fibre.Phase
For traditional pure carbon nano-structured, the device also considerably reduced while improving generating efficiency manufacture difficulty at
This.It is tested by experiment, the black burlap (size is about the cm of 25 cm × 3) of every piece of leaching can produce nearly 1 volt in deionized water
Special open-circuit voltage and several microamperes of short circuit current.The device can maintain the stable electric generation efficiency of at least one month, and
Ink can be soaked after failure again and is dried and restores original generating efficiency and repeatedly uses.It is received with traditional surface treated carbon
Rice structural material compares, the high 1-2 order of magnitude of the generated output of this device.Environment temperature gets over high humility for aqueous solution
More low then generating efficiency is higher, and in certain density NaCl aqueous solution, generated output can also improve at least 2 times again.While I
The power generating device that designs provide energy input without the external world, electric energy is generated by the spontaneous diffusion of liquid completely, by liquid
Spontaneous evaporation maintains and driving.
Simultaneously it also have the advantage that production very simple and low in cost；It in a natural environment can be normal
Work；The liquid used is simple and easy to get, and effect is more preferable in the liquid of higher ion；The system can be with long-time stable
Work；The device no pollution to the environment, can be used repeatedly.
Detailed description of the invention
Fig. 1 is the schematic diagram of the power generating device.
Specific embodiment
Specific implementation method of the present invention is as follows:
Only being introduced below using burlap is substrate, and water is this kind of embodiment example for flowing polar liquid, can not be with this
It limits the scope of the invention.
Embodiment 1
(1) single power generating device preparation process is as follows:
Burlap is cut into growth 25 centimetres, wide 3 centimetres of cloth, cleans and dries.Above-mentioned cloth is completely submerged in 15 milliliters
Naturally dry is taken out in carbon black ink after a few hours, and is repeated the above steps four times altogether.Carbon black ink is common commercially available English
Male carbon black ink.
Different liquid is since the difference of the conditions such as charge species therein, charge density has a little bit different, in this example
By taking deionized water as an example.
(2) the leaching ink burlap item of above-mentioned drying is hung down vertically and is filled in deionized water in glass dish, submerge cloth height
About 2 centimetres.Deionized water will pass quickly through burlap and diffuse up, and higher output voltage will be generated in diffusion process, to
After diffusion is stablized, voltage will maintain a certain particular value fuctuation within a narrow range (several millivolts).
(3) often use multimeter or digital sourcemeter that can monitor its voltage and electric current using laboratory, the position of electrode may
It will affect its monitoring result.
Due to that will have dry/hygroscopic water boundary line (the calling waterline in the following text) an of cloth after water is stablized along the diffusion of cloth, close
Waterline close beneath by be water the maximum position of concentration gradient, by electrode both ends across waterline up and down at a distance of about 5 centimetres placement
Preferable monitoring result is usually had, single power generating device can produce about 0.3 volt of voltage and about 5 microamperes of electric current.It is right
For series and parallel power generating device group, only each power generating device need to be carried out as desired corresponding series-parallel.The present invention
It is generated electricity using the evaporation of water with flowing, does not need the input of any extra power, by series and parallel can be with to multiple device cells
Its power is significantly improved, is very useful power supply.
Embodiment 2
(1) single power generating device preparation process is as follows:
Burlap is cut into growth 25 centimetres, wide 3 centimetres of cloth, cleans and dries.Above-mentioned cloth is completely submerged in 15 milliliters
Naturally dry is taken out in carbon black ink after a few hours, and is repeated the above steps four times altogether.
Different liquid is since the difference of the conditions such as charge species therein, charge density has a little bit different, in this example
By taking concentration is the NaCl aqueous solution of 36.27 g/L as an example, wherein solvent is deionized water.
(2) the black burlap item of the leaching of above-mentioned drying is hung down vertically in the glass dish for filling NaCl aqueous solution, submergence cloth is high
About 2 centimetres of degree, NaCl aqueous solution will pass quickly through burlap and diffuse up.
(3) often use multimeter or digital sourcemeter that can monitor its voltage and electric current using laboratory, the position of electrode may
It will affect its monitoring result.
The electrode both ends of common multimeter or digital sourcemeter, up and down at a distance of about 5 centimetres of placements, carry out just pressing volume across waterline,
Single power generating device can produce about 0.6 volt of voltage and about 8 microamperes of electric current.It can be seen that for higher ion
Liquid, the present invention can obtain the electric energy of higher power.
Described above is only the citing to a kind of embodiment of the invention, can not be limited the scope of the invention with this,
It, all should be comprising within scope of the present invention to any variation made according to the present invention.
Claims (2)
1. a kind of power generating device based on liquid evaporation, it is characterised in that: the power generating device is to impregnate carbon black ink and dry
Leaching ink cloth, it is described that soak the substrate that black cloth uses be the woven cloth of hydrophilic fibers.
2. a kind of preparation method of power generating device based on liquid evaporation according to claim 1, which is characterized in that including
Following steps:
(1) cloth is cut into cloth, cleans and dries；
(2) above-mentioned cloth was completely submerged in carbon black ink after 3-5 hours and takes out naturally dry；
(3) black cloth must be soaked more than four times, after drying by repeating step 2.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496964A (en) * | 2020-04-28 | 2020-08-07 | 东南大学 | Moisture absorption power generation material based on ink and corn straw and preparation method thereof |
| CN111600508A (en) * | 2020-01-09 | 2020-08-28 | 盐城师范学院 | Preparation method of gradient titanium dioxide-based photovoltaic device |
| CN111682800A (en) * | 2020-06-12 | 2020-09-18 | 东南大学 | Humidity micro-power generation device based on dust-free paper and ink and preparation method and application thereof |
| CN113114070A (en) * | 2021-05-17 | 2021-07-13 | 哈尔滨工业大学 | Biomass dehumidification power generation device based on wet-photovoltaic power generation principle |
| CN114915212A (en) * | 2022-04-29 | 2022-08-16 | 扬州大学 | Evaporation and power generation device based on spray type CB/PVDF material |
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| CN105591166A (en) * | 2014-10-24 | 2016-05-18 | 华中科技大学 | Power generation device based on carbon material and manufacturing method thereof |
| CN106208810A (en) * | 2015-04-29 | 2016-12-07 | 华中科技大学 | A kind of preparation method of the electrification component for evaporating generating |
| CN108285177A (en) * | 2017-12-20 | 2018-07-17 | 东莞理工学院 | Water evaporation power generating device based on LDHs and preparation method |
| CN109975365A (en) * | 2019-03-12 | 2019-07-05 | 复旦大学 | A kind of wearable liquid sensor and preparation method thereof |
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2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07180649A (en) * | 1993-12-21 | 1995-07-18 | Masahisa Shimizu | Generating mechanism by gasifying engine |
| CN105591166A (en) * | 2014-10-24 | 2016-05-18 | 华中科技大学 | Power generation device based on carbon material and manufacturing method thereof |
| CN106208810A (en) * | 2015-04-29 | 2016-12-07 | 华中科技大学 | A kind of preparation method of the electrification component for evaporating generating |
| CN108285177A (en) * | 2017-12-20 | 2018-07-17 | 东莞理工学院 | Water evaporation power generating device based on LDHs and preparation method |
| CN109975365A (en) * | 2019-03-12 | 2019-07-05 | 复旦大学 | A kind of wearable liquid sensor and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600508A (en) * | 2020-01-09 | 2020-08-28 | 盐城师范学院 | Preparation method of gradient titanium dioxide-based photovoltaic device |
| CN111600508B (en) * | 2020-01-09 | 2024-01-12 | 盐城师范学院 | Preparation method of gradient titanium dioxide-based photovoltaic device |
| CN111496964A (en) * | 2020-04-28 | 2020-08-07 | 东南大学 | Moisture absorption power generation material based on ink and corn straw and preparation method thereof |
| CN111682800A (en) * | 2020-06-12 | 2020-09-18 | 东南大学 | Humidity micro-power generation device based on dust-free paper and ink and preparation method and application thereof |
| CN111682800B (en) * | 2020-06-12 | 2023-12-01 | 东南大学 | Humidity micro-power generation device based on dust-free paper and ink, and preparation method and application thereof |
| CN113114070A (en) * | 2021-05-17 | 2021-07-13 | 哈尔滨工业大学 | Biomass dehumidification power generation device based on wet-photovoltaic power generation principle |
| CN114915212A (en) * | 2022-04-29 | 2022-08-16 | 扬州大学 | Evaporation and power generation device based on spray type CB/PVDF material |
| CN114915212B (en) * | 2022-04-29 | 2023-10-31 | 扬州大学 | Evaporation and power generation device based on sprayable CB/PVDF material |
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Application publication date: 20191105 |