CN111302423A - Solar water purifier based on interface solar photothermal conversion - Google Patents
Solar water purifier based on interface solar photothermal conversion Download PDFInfo
- Publication number
- CN111302423A CN111302423A CN202010106056.0A CN202010106056A CN111302423A CN 111302423 A CN111302423 A CN 111302423A CN 202010106056 A CN202010106056 A CN 202010106056A CN 111302423 A CN111302423 A CN 111302423A
- Authority
- CN
- China
- Prior art keywords
- solar
- water
- interface
- photothermal conversion
- water purifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 162
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 50
- 239000012153 distilled water Substances 0.000 claims abstract description 33
- 238000003860 storage Methods 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000004744 fabric Substances 0.000 claims abstract description 18
- 230000031700 light absorption Effects 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000001704 evaporation Methods 0.000 claims abstract description 9
- 239000012774 insulation material Substances 0.000 claims abstract description 9
- 230000008020 evaporation Effects 0.000 claims abstract description 8
- 238000013329 compounding Methods 0.000 claims abstract description 3
- 239000011521 glass Substances 0.000 claims description 32
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 claims description 31
- 239000006260 foam Substances 0.000 claims description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 239000000377 silicon dioxide Substances 0.000 claims description 14
- 229910052681 coesite Inorganic materials 0.000 claims description 13
- 229910052906 cristobalite Inorganic materials 0.000 claims description 13
- 229910052682 stishovite Inorganic materials 0.000 claims description 13
- 229910052905 tridymite Inorganic materials 0.000 claims description 13
- 238000002834 transmittance Methods 0.000 claims description 12
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 10
- -1 polyethylene Polymers 0.000 claims description 10
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 10
- 239000008213 purified water Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 229910002567 K2S2O8 Inorganic materials 0.000 claims description 3
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 239000013535 sea water Substances 0.000 abstract description 8
- 238000000746 purification Methods 0.000 abstract description 5
- 238000010612 desalination reaction Methods 0.000 abstract description 3
- 239000003651 drinking water Substances 0.000 abstract description 2
- 235000020188 drinking water Nutrition 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 15
- 239000006096 absorbing agent Substances 0.000 description 12
- 238000001914 filtration Methods 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 239000002384 drinking water standard Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 4
- 239000013505 freshwater Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 229960003280 cupric chloride Drugs 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229940048181 sodium sulfide nonahydrate Drugs 0.000 description 1
- WMDLZMCDBSJMTM-UHFFFAOYSA-M sodium;sulfanide;nonahydrate Chemical compound O.O.O.O.O.O.O.O.O.[Na+].[SH-] WMDLZMCDBSJMTM-UHFFFAOYSA-M 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/006—Methods of steam generation characterised by form of heating method using solar heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/30—Solar heat collectors for heating objects, e.g. solar cookers or solar furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/10—Details of absorbing elements characterised by the absorbing material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/20—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/60—Details of absorbing elements characterised by the structure or construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/60—Thermal insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/60—Details of absorbing elements characterised by the structure or construction
- F24S2070/62—Heat traps
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/211—Solar-powered water purification
-
- 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
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a solar water purifier based on interface solar photothermal conversion, which comprises a solar interface evaporator and a distilled water collector, wherein the solar interface evaporator comprises an open water storage disc and a light absorption body with high-efficiency photothermal conversion efficiency; the light absorption body is of a double-layer structure and is formed by compounding an upper layer of photo-thermal conversion material and a lower layer of thermal insulation material, and dust-free cloth is arranged between the upper layer of material and the lower layer of material; when the dust-free cloth is used, the dust-free cloth can be ensured to be continuously contacted with the liquid level in the water storage disc, so that enough water is conveyed to the surface of the light-absorbing body to ensure continuous evaporation. The device only utilizes solar energy as driving energy, does not need to consume other energy, simultaneously avoids the problem of replacing the filter element of the conventional water purifier, has the characteristics of portability, low price, high water purification efficiency and the like, and can be stably applied to seawater desalination, sewage treatment and outdoor drinking water purification for a long time.
Description
Technical Field
The invention belongs to the technical field of solar photo-thermal utilization and water purification, and particularly relates to a solar water purifier based on interface solar photo-thermal conversion.
Background
With the rapid development of economic society and the increasing environmental pollution, the demand of human beings on clean water resources is increasing. The water purification product on the existing market mainly adopts a filtering mode to separate and obtain purified water, and a filtering membrane mainly comprises: ion exchange membrane, RO reverse osmosis membrane and milipore filter. Filter membrane-cored cartridge components typically require replacement after a period of use (3-24 months). The water purifier adopting the filtering mode has the advantages that the filter element material is expensive, and meanwhile, the external electric energy is required for auxiliary work. Therefore, there is an urgent need for an environmentally friendly water purifier to meet the demand for pure drinking water in remote mountainous areas, independent islands, outdoor trips, and the like.
Solar energy is an environment-friendly and sustainable energy source, and the problem of external electric energy can be effectively solved by applying the solar energy to the water purifier. The working principle of the solar water purifier in the current market mainly adopts a photovoltaic module and a storage battery to provide electric energy, and then is combined with a filtering membrane to purify water. The solar water purifier is different from the traditional water purifier in that external electric energy is replaced by photovoltaic power generation, and the solar water purifier can normally work only by adopting expensive filtering membranes, photovoltaic modules and storage batteries, and has high cost and complex structure.
The interface solar steam technology is a novel water treatment technology which is environment-friendly and does not need external energy, and has the characteristics of high photo-thermal conversion efficiency and low cost. Research on the interface solar steam technology in the field of seawater desalination shows that the efficiency of solar energy reaching the light absorption layer can be greatly reduced due to the phenomenon of water droplet atomization on the inner wall of the evaporator, so that the production efficiency of purified water is reduced. In addition, the existing interface solar evaporator mainly adopts carbon materials (carbon black, graphene and the like) as the photothermal conversion material, and the thermal radiance of the materials is close to 1.0, which means that solar energy absorbed by the photothermal conversion material is lost in the form of thermal radiation to a great extent, and the energy for evaporating water is correspondingly reduced, so that the photothermal conversion efficiency and the yield of distilled water are reduced.
Disclosure of Invention
The invention provides a solar water purifier based on interface solar photothermal conversion, aiming at solving the problems that a filtering membrane in the prior art needs to be replaced periodically, the electric energy consumption is high, the cost is high and the efficiency is low.
The invention relates to a solar water purifier based on interface solar photo-thermal conversion, which comprises a solar interface evaporator and a distilled water collector.
The solar interface evaporator comprises an open water storage tray and a light absorption body with high-efficiency photothermal conversion efficiency. The water storage tray is used for storing water to be purified; the light absorber is arranged in the water storage tray and is positioned on the surface of the water body to be purified (figure 1).
The distilled water collector is of a box structure with a cover, is formed by building a glass plate with high optical transmittance, and is coated with a layer of super-hydrophilic SiO2And (4) an anti-reflection film.
Transmittance of the glass plate>92% and the thickness is 1-2 mm; the super-hydrophilic SiO2Thickness of antireflection film<100nm, glass plate coated with SiO2Transmittance after antireflection film>98％。
When the solar interface evaporator works, the solar interface evaporator is placed in the distilled water collector and is supported by the bracket, so that the solar interface evaporator is not in contact with the top and the side wall of the distilled water collector. The height of the water storage tray of the solar interface evaporator is measured by h, the distance between the bottom of the water storage tray and the bottom of the distilled water collector is more than or equal to 1.5h, the height of the water body to be purified stored in the water storage tray is 0.5-0.9 h, and h is 10-20 cm.
A water inlet is formed in the water storage disc of the solar interface evaporator, and a water body to be purified is added into the water storage disc through a pipeline communicated with the water inlet; a water outlet is arranged at the bottom of the distilled water collector, and the purified water is collected through a pipeline communicated with the water outlet.
The cover plate of the distilled water collector is a movable turnover cover inclined cover plate, and the box body can be kept sealed when the cover plate is closed. The cover plate and the vertical back plate form an included angle of 45-60 degrees when being closed.
The light absorption body is of a double-layer structure and is formed by compounding an upper layer of photo-thermal conversion material and a lower layer of thermal insulation material, and dust-free cloth is arranged between the upper layer of material and the lower layer of material. When the dust-free cloth is used, the dust-free cloth can be ensured to be continuously contacted with the liquid level in the water storage tray, so that enough water is conveyed to the surface of the light-absorbing body to ensure continuous evaporation.
The photothermal conversion material in the light absorber is low-emissivity (<0.7) nano copper sulfide.
The thickness of the photothermal conversion material is 2-4 mm, and the thickness of the heat insulation material is 8-30 mm.
The photothermal conversion material is formed by directly growing nano copper sulfide on a foam copper substrate and then attaching a polyvinyl alcohol film. The photothermal conversion material is prepared by a method comprising the following steps:
step 1: immersing foamed copper into 1mol/L K2S2O8Reacting the solution at the temperature of 60-80 ℃ for 30 minutes, and taking out;
step 2: immersing the foamy copper obtained in the step 1 into 3mol/L Na2Reacting the S solution for 10 minutes at 50-65 ℃, and washing with deionized water to obtain black copper sulfide foam;
and step 3: and (3) soaking the copper sulfide foam obtained in the step (2) into a PVA solution, taking out the copper sulfide foam after 2 minutes, naturally airing the copper sulfide foam, and then putting the copper sulfide foam into a vacuum drying oven to age for 30 minutes at 100 ℃.
The foamy copper is a commercial product, and the required aperture is 0.1-0.8 mm, the aperture ratio is more than 98%, the porosity is more than 60%, and the thickness is 2-3 mm.
The PVA solution with a concentration of 5 wt% was prepared by dissolving 1g of PVA (1750 type) in 19g of water, stirring the solution at 90 ℃ to dissolve the PVA, adding 1% glutaraldehyde, and carrying out a crosslinking reaction for 30 minutes.
The heat insulation material is any one of foamed polyethylene and foamed polypropylene, and has heat conductivity<0.04W.m-1.K-1Commercially available.
The super-hydrophilic SiO2The antireflection film is prepared by the method comprising the following steps of:
step 1: mixing 1mol of vinyltrimethoxysilane with 80mol of anhydrous methanol, stirring at 50 ℃, dropwise adding 0.01mol of hydrochloric acid solution (1mol/L), and finally adding 1 to 10-3Stirring the mol of F127 for 45 minutes;
step 2: immersing a glass plate into the mixed liquid obtained in the step (1), standing for 2 minutes, lifting the glass plate at a speed of 90mm/min by using a stepping motor, separating the glass plate from the liquid surface, and performing heat treatment at 400 ℃ for 1 hour in a muffle furnace to obtain the super-hydrophilic SiO with the transmittance of more than 98 percent and the contact angle of less than 5 DEG2And (4) an anti-reflection film.
The working principle (figure 2) of the solar water purifier based on interface solar photothermal conversion is as follows:
when sunlight irradiates on the inclined plane of the solar water purifier, the light absorption body of the solar interface evaporator absorbs a large amount of photons and then converts the photons into heat, on one hand, water in the hole of the photothermal conversion material is heated and evaporated, on the other hand, the heat is prevented by the heat insulation material at the lower layer of the light absorption body in the process of downward transmission, the heat is only kept in the thin layer light absorption body, and the water body to be purified at the bottom almost does not obtain heat energy and keeps lower temperature. After evaporation is generated, a layer of ultrathin water film is formed on the super-hydrophilic glass wall of the distilled water collector, so that the atomization phenomenon is avoided, the distilled water flows down along the glass wall under the action of gravity, and finally the distilled water is collected into a purified water storage tank through a water outlet. Along with the evaporation, the dust-free cloth conveys the water body to be purified to the photo-thermal conversion material from the bottom by means of capillary force so as to ensure that the evaporation on the surface is continuously carried out. When the liquid level in the water storage tray is reduced to 0.3h, the water to be purified is fed into the water inlet.
The solar water purifier based on interface solar photothermal conversion only utilizes solar energy as the only energy source, does not need a photovoltaic module and external electric energy assistance, does not need a filter element, and can be stably operated for a long time and has low maintenance cost, and the light absorber is periodically replaced and cleaned through the water inlet/outlet to keep the surface clean and stable photothermal conversion efficiency.
According to the solar water purifier based on interface solar photothermal conversion, after the inner wall of the distilled water collector is coated with the super-hydrophilic optical antireflection film, the transmittance of sunlight is increased, and the phenomenon of wall hanging and atomization of steam water drops is avoided, so that the utilization rate of the sunlight is effectively improved. More particularly, the invention adopts the copper sulfide foam with low emissivity (0.6) as the photo-thermal conversion material, which can effectively reduce the heat radiation loss, increase the heat energy for water evaporation and improve the yield of purified water.
Compared with the prior art, the invention has the beneficial effects that:
1. the solar water purifier disclosed by the invention adopts an interface evaporation principle, can stably run for a long time, has no scaling phenomenon on the surface of a light absorber, avoids the problem of regular replacement of a filter membrane in a conventional water purifier, has no material consumption for life, and is low in price and portable.
2. The solar water purifier adopts solar energy as the only energy source, does not need external energy source assistance, and does not need a photovoltaic module and a storage battery, the interface evaporator concentrates the absorbed solar energy on the surface of the light absorption layer to directly heat and evaporate surface water, thereby avoiding heat from diffusing to a water body at the bottom of the evaporator, having high photo-thermal conversion efficiency and improving the utilization efficiency of the solar energy.
3. The surface of the distilled water collector in the solar water purifier is coated with the super-hydrophilic antireflection film, so that the phenomenon of wall-hanging atomization of steam droplets is effectively avoided, and the transmittance of sunlight is greatly improved, so that the production efficiency of purified water and the utilization efficiency of solar energy are improved.
Drawings
Fig. 1 is a front view of an interface solar evaporator structure.
Wherein, A is a photo-thermal conversion material, B is a dust-free cloth, and C is a heat insulation material.
Fig. 2 is a left side view of the solar water purifier.
The system comprises a solar interface evaporator 1, a distilled water collector 2, a light absorber 3, a water body to be purified 4, a water inlet 5, a water outlet 6 and a water storage tray h.
Fig. 3 shows ion concentrations before and after seawater desalination in the solar water purifier. As can be seen from fig. 3, the ion concentration of the purified water collected by the solar water purifier is lower than the concentration of the drinking water standard of the World Health Organization (WHO), and the solar water purifier is suitable for the daily life water source of human beings.
Detailed Description
The water purifying effect of the solar water purifier mainly depends on the light absorber and the super-hydrophilic SiO2The antireflection film is obtained by the following examples and comparative examples in order to show the effects of the both on water purification effects.
The invention discloses a preparation method of a light absorber of a solar water purifier, which comprises the following steps: first, a copper foam having a pore size of 0.5mm was immersed in 1mol/L K2S2O8Reacting the solution at 60 ℃ for 30 minutes, and taking out; then immersed in 3mol/L Na2Reacting in the S solution at 55 ℃ for 10 minutes to obtain black copper sulfide (CuS) foam, and washing for 2 times by deionized water; finally immersing the mixture into 5 percent PVA solution, taking out the mixture after 2 minutes, naturally airing the mixture for 10 hours, and then putting the mixture into a vacuum drying oven to age for 30 ℃ at 100 DEG CAnd (3) minutes. Secondly, wrapping the foamed polyethylene by using dust-free cloth, and placing the copper sulfide foam above the dust-free cloth.
The invention discloses a preparation method of a distilled water collector of a solar water purifier, which comprises the following steps: the glass plate is coated with a layer of super-hydrophilic SiO by dip coating2The antireflection film is prepared by soaking glass plate in SiO2In the colloidal solution, after being pulled, the glass fiber is thermally treated at 400 ℃, and finally, the glass fiber is bonded and sealed according to the structure in the design scheme.
The SiO2The formula of the colloidal solution is as follows: mixing vinyl trimethoxy silane and methanol at a molar ratio of 1:80, dropwise adding 1% diluted hydrochloric acid (1mol/L) and 0.1% F127, mixing, and stirring at 50 deg.C for 45min to obtain transparent Solution (SiO)2And (4) coating liquid.
In order to compare the performance of the light absorber of the invention, a preparation method of nano copper sulfide (CuS) sponge as a light absorber comprises the following steps: dispersing CuS nano particles in a polyvinyl alcohol (PVA) aqueous solution, and performing ultrasonic treatment to form uniform slurry with a certain viscosity. Uniformly adsorbing the slurry on melamine sponge, drying at room temperature for 24h, and then aging in a vacuum oven at 100 ℃ for 1h to form stable and flexible CuS photo-thermal sponge; and then the mixture is placed above the foamed polyethylene wrapped by the dust-free cloth. The synthesis process of the nano copper sulfide comprises the following steps: 80mL of sodium sulfide nonahydrate (0.32mol/L) was added dropwise to 100mL of cupric chloride dihydrate solution (0.26mol/L) under magnetic stirring (5 min). The solution was then transferred to a 90 ℃ water bath and stirred for 45 min. And finally, cooling the solution to room temperature, washing the obtained dark green precipitate for 3 times by using deionized water and ethanol, and drying the washed dark green precipitate for 4 hours in a vacuum drying oven at the temperature of 75 ℃ to obtain the required superfine nano CuS sample.
The conventional distilled water collector is made of common glass, the transmittance of the glass is 90-92%, and the thickness of the glass is 2 mm.
In the following embodiment, the working conditions of the solar water purifier are as follows: a xenon lamp is adopted as a simulated solar light source, and the power density is 1000W/m2The environmental temperature is 25 ℃, and the continuous working time is 4 hours as the basis for calculating the efficiency. The liquid level in the water storage tray is 10cm, and the liquid to be separated is seawater (east)Sea, mansion sea area).
Example 1: nano CuS sponge as photo-thermal conversion material and distilled water collector made of common glass
Placing nanometer copper sulfide sponge (10 × 0.3cm) on foamed polyethylene surface wrapped by dust-free cloth to form light absorbing body, placing into water storage tray, forming distilled water collector with common glass, and sealing the inclined cover plate. Simulating solar light to continuously work on the inclined cover plate for 4 hours, generating fog formed by a large amount of fine water vapor on the glass wall of the collector, greatly reducing the transmittance of the sunlight, calculating the yield by using the purified water collected by the water outlet, and controlling the yield of desalinated seawater to be 0.91kg/m2And h, the ion concentration of the produced fresh water meets the drinking water standard of the World Health Organization (WHO), and the photothermal conversion efficiency reaches 61 percent.
Example 2: the CuS foam is used as a photo-thermal conversion material, and a distilled water collector is formed by common glass
CuS foam (10 × 0.3cm) is placed on the surface of foamed polyethylene wrapped by dust-free cloth to form a light absorber, then the light absorber is placed in a water storage tray, a distilled water collector is formed by common glass, and an inclined cover plate is sealed. Simulated solar light irradiates on the inclined cover plate to continuously work for 4 hours, a great amount of fog formed by fine water vapor appears on the glass wall of the collector, and the transmittance of the sunlight is greatly reduced. The yield of the desalinated seawater is 0.97kg/m2And h, the ion concentration of the produced fresh water meets the WHO drinking water standard, and the photo-thermal conversion efficiency reaches 65 percent.
Example 3: nano CuS sponge as light-heat conversion material and SiO2Distilled water collector made of anti-reflection film glass
Placing nanometer CuS sponge (10 × 0.3cm) on foamed polyethylene surface wrapped by dust-free cloth to form light absorbing body, placing into water storage tray, and adding SiO2The anti-reflection film glass forms a distilled water collector and seals the inclined plane cover plate. The simulated solar light irradiates on the inclined cover plate to continuously work for 4 hours, and no obvious fog phenomenon exists on the glass wall of the collector. The yield of the desalinated seawater is 1.15kg/m2And h, the ion concentration of the produced fresh water meets the WHO drinking water standard, and the photo-thermal conversion efficiency reaches 78%.
Example 4: the CuS foam is used as a photo-thermal conversion material and is made of SiO2Distilled water collector made of anti-reflection film glass
Placing CuS foam (10 × 0.3cm) on foamed polyethylene surface wrapped by dust-free cloth to form light absorber, placing into water storage tray, and filling with SiO2The anti-reflection film glass forms a distilled water collector and seals the inclined plane cover plate. Simulating continuous working of solar light irradiation on the inclined plane cover plate for 4 hours, wherein no obvious fog phenomenon exists on the glass wall of the collector, the yield is calculated by using purified water collected by the water outlet, and the yield of desalinated seawater is 1.25kg/m2And/h, the ion concentration of the produced fresh water meets the WHO drinking water standard (figure 3), and the photothermal conversion efficiency reaches 84%.
Claims (9)
1. The utility model provides a solar water purifier based on interface solar photothermal conversion which characterized in that:
the solar water purifier comprises a solar interface evaporator and a distilled water collector;
the solar interface evaporator comprises an open water storage tray and a light absorption body with high-efficiency photothermal conversion efficiency, wherein the water storage tray is used for storing the water body to be purified, and the light absorption body is arranged in the water storage tray and positioned on the surface of the water body to be purified; the light absorption body is of a double-layer structure and is formed by compounding an upper layer of photo-thermal conversion material and a lower layer of thermal insulation material, and dust-free cloth is arranged between the upper layer of material and the lower layer of material; when the dust-free cloth is used, the dust-free cloth can be ensured to be continuously contacted with the liquid level in the water storage disc so as to ensure that enough water is transported to the surface of the light-absorbing body to ensure continuous evaporation;
the distilled water collector is of a box body structure with a cover, and is constructed by a glass plate with high optical transmittance, and the thickness of the glass plate is 1-2 mm;
a water inlet is formed in the water storage disc of the solar interface evaporator, and a water body to be purified is added into the water storage disc through a pipeline communicated with the water inlet; a water outlet is arranged at the bottom of the distilled water collector, and the purified water is collected through a pipeline communicated with the water outlet.
2. The solar water purifier based on interface solar photothermal conversion according to claim 1, wherein:
super-hydrophilic SiO (silicon dioxide) coated on surface of glass plate for building distilled water collector2An anti-reflection film of the super hydrophilic SiO2Thickness of antireflection film<100nm, coated with super hydrophilic SiO2Transmittance of glass plate behind antireflection film>98％。
3. The solar water purifier based on interface solar photothermal conversion according to claim 1, wherein:
the photothermal conversion material is formed by directly growing nano copper sulfide on a foam copper substrate and then attaching a polyvinyl alcohol film; the aperture of the copper foam is 0.1-0.8 mm, the aperture ratio is more than 98%, the porosity is more than 60%, and the thickness is 2-3 mm.
4. The solar water purifier based on interface solar photothermal conversion according to claim 3, wherein the photothermal conversion material is prepared by a method comprising the steps of:
step 1: immersing foamed copper into 1mol/L K2S2O8Reacting the solution at the temperature of 60-80 ℃ for 30 minutes, and taking out;
step 2: immersing the foamy copper obtained in the step 1 into 3mol/L Na2Reacting the S solution for 10 minutes at 50-65 ℃, and washing with deionized water to obtain black copper sulfide foam;
and step 3: and (3) soaking the copper sulfide foam obtained in the step (2) into a 5 wt% PVA solution, taking out the copper sulfide foam after 2 minutes, naturally airing the copper sulfide foam, and then putting the copper sulfide foam into a vacuum drying oven to age for 30 minutes at 100 ℃.
5. The solar water purifier based on interface solar photothermal conversion according to claim 1, wherein:
the heat insulation material is any one of foamed polyethylene and foamed polypropylene, and has heat conductivity<0.04W.m-1.K-1。
6. The solar water purifier based on interface solar photo-thermal conversion according to claim 1, 3, 4 or 5, characterized in that:
the thickness of the photothermal conversion material is 2-4 mm, and the thickness of the heat insulation material is 8-30 mm.
7. The solar water purifier based on interface solar photothermal conversion according to claim 1, wherein the super-hydrophilic SiO is2The antireflection film is prepared by the method comprising the following steps of:
step 1: mixing 1mol of vinyltrimethoxysilane with 80mol of anhydrous methanol, stirring at 50 ℃, dropwise adding 0.01mol of hydrochloric acid, and finally adding 1 x 10-3Stirring the mol of F127 for 45 minutes;
step 2: immersing a glass plate into the mixed liquid obtained in the step (1), standing for 2 minutes, lifting the glass plate at a speed of 90mm/min by using a stepping motor, separating the glass plate from the liquid surface, and performing heat treatment at 400 ℃ for 1 hour in a muffle furnace to obtain the super-hydrophilic SiO with the transmittance of more than 98 percent and the contact angle of less than 5 DEG2And (4) an anti-reflection film.
8. The solar water purifier based on interface solar photothermal conversion according to claim 1, wherein:
the cover plate of the distilled water collector is a movable flip inclined cover plate, and the box body can be kept sealed when the cover plate is closed; the cover plate and the vertical back plate form an included angle of 45-60 degrees when being closed.
9. The solar water purifier based on interface solar photothermal conversion according to claim 1, wherein:
when the solar interface evaporator works, the solar interface evaporator is placed in the distilled water collector and is supported by the bracket, so that the solar interface evaporator is not in contact with the top and the side wall of the distilled water collector; the height of the water storage tray of the solar interface evaporator is measured by h, the distance between the bottom of the water storage tray and the bottom of the distilled water collector is more than or equal to 1.5h, the height of the water body to be purified stored in the water storage tray is 0.5-0.9 h, and h is 10-20 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010106056.0A CN111302423B (en) | 2020-02-20 | 2020-02-20 | Solar water purifier based on interface solar photothermal conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010106056.0A CN111302423B (en) | 2020-02-20 | 2020-02-20 | Solar water purifier based on interface solar photothermal conversion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111302423A true CN111302423A (en) | 2020-06-19 |
| CN111302423B CN111302423B (en) | 2022-06-21 |
Family
ID=71158527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010106056.0A Active CN111302423B (en) | 2020-02-20 | 2020-02-20 | Solar water purifier based on interface solar photothermal conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111302423B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998546A (en) * | 2020-08-13 | 2020-11-27 | 中原工学院 | Solar energy heat-water purification integrated device |
| CN112357992A (en) * | 2020-10-26 | 2021-02-12 | 哈尔滨工业大学 | Method for solving salt deposition of conical evaporator |
| CN112426734A (en) * | 2020-12-03 | 2021-03-02 | 西安交通大学 | Thermoelectric-driven interface evaporation device |
| CN112897618A (en) * | 2021-01-25 | 2021-06-04 | 浙江大学 | Three-dimensional photothermal conversion material capable of efficiently treating saline water and wastewater, device and method |
| CN112968657A (en) * | 2021-02-05 | 2021-06-15 | 浙江工商大学 | Photo-thermal coupling system and application |
| CN112960719A (en) * | 2021-02-22 | 2021-06-15 | 北京九泉科技有限公司 | Water purification system of high-efficient water purification |
| CN113149114A (en) * | 2021-04-06 | 2021-07-23 | 清华大学 | Solar water evaporation material |
| CN113184940A (en) * | 2021-04-22 | 2021-07-30 | 江南大学 | Photo-thermal conversion material and application thereof in seawater desalination and salt recovery |
| CN113401965A (en) * | 2021-06-08 | 2021-09-17 | 孔令斌 | Flip formula solar energy sea water desalination device |
| CN113499483A (en) * | 2021-06-28 | 2021-10-15 | 福州大学 | Nano copper sulfide coating modified memory alloy esophageal stent and preparation method thereof |
| WO2022055703A3 (en) * | 2020-09-08 | 2022-05-05 | Northeastern University | Photothermal evaporator for a desalination system and method of manufacture |
| CN114477341A (en) * | 2022-01-27 | 2022-05-13 | 河南工业大学 | Preparation method and application of solar photo-thermal conversion composite film |
| CN115432763A (en) * | 2022-10-19 | 2022-12-06 | 辽宁大学 | Solar interface evaporation water purifier for seawater desalination |
| CN115491805A (en) * | 2022-09-23 | 2022-12-20 | 天津工业大学 | Photothermal conversion composite fabric and solar drinking water generation device thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104418511A (en) * | 2013-08-28 | 2015-03-18 | 中国科学院理化技术研究所 | Method for forming super-hydrophilic anti-reflective composite coating on glass substrate |
| US20150353385A1 (en) * | 2014-06-09 | 2015-12-10 | King Abdullah University Of Science And Technology | Hydrophobic photothermal membranes, devices including the hydrophobic photothermal membranes, and methods for solar desalination |
| CN107235591A (en) * | 2017-06-28 | 2017-10-10 | 中国科学院合肥物质科学研究院 | A kind of application of photothermal deformation copper sulfide laminated film in water process |
| CN108569811A (en) * | 2018-04-26 | 2018-09-25 | 清华大学 | The device of sewage purification is carried out using solar energy based on optical-thermal conversion material |
| CN110330067A (en) * | 2019-07-18 | 2019-10-15 | 华北电力大学 | A kind of vapo(u)rization system absorbing solar energy based on foam metal body |
| CN110563064A (en) * | 2019-09-30 | 2019-12-13 | 天津大学 | Solar distillation device with interface heating function |
| CN110746631A (en) * | 2019-11-26 | 2020-02-04 | 河南工业大学 | Solar photo-thermal conversion composite film and preparation method thereof |
-
2020
- 2020-02-20 CN CN202010106056.0A patent/CN111302423B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104418511A (en) * | 2013-08-28 | 2015-03-18 | 中国科学院理化技术研究所 | Method for forming super-hydrophilic anti-reflective composite coating on glass substrate |
| US20150353385A1 (en) * | 2014-06-09 | 2015-12-10 | King Abdullah University Of Science And Technology | Hydrophobic photothermal membranes, devices including the hydrophobic photothermal membranes, and methods for solar desalination |
| CN107235591A (en) * | 2017-06-28 | 2017-10-10 | 中国科学院合肥物质科学研究院 | A kind of application of photothermal deformation copper sulfide laminated film in water process |
| CN108569811A (en) * | 2018-04-26 | 2018-09-25 | 清华大学 | The device of sewage purification is carried out using solar energy based on optical-thermal conversion material |
| CN110330067A (en) * | 2019-07-18 | 2019-10-15 | 华北电力大学 | A kind of vapo(u)rization system absorbing solar energy based on foam metal body |
| CN110563064A (en) * | 2019-09-30 | 2019-12-13 | 天津大学 | Solar distillation device with interface heating function |
| CN110746631A (en) * | 2019-11-26 | 2020-02-04 | 河南工业大学 | Solar photo-thermal conversion composite film and preparation method thereof |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998546B (en) * | 2020-08-13 | 2022-01-11 | 中原工学院 | Solar energy heat-water purification integrated device |
| CN111998546A (en) * | 2020-08-13 | 2020-11-27 | 中原工学院 | Solar energy heat-water purification integrated device |
| WO2022055703A3 (en) * | 2020-09-08 | 2022-05-05 | Northeastern University | Photothermal evaporator for a desalination system and method of manufacture |
| CN112357992A (en) * | 2020-10-26 | 2021-02-12 | 哈尔滨工业大学 | Method for solving salt deposition of conical evaporator |
| CN112426734B (en) * | 2020-12-03 | 2021-09-28 | 西安交通大学 | Thermoelectric-driven interface evaporation device |
| CN112426734A (en) * | 2020-12-03 | 2021-03-02 | 西安交通大学 | Thermoelectric-driven interface evaporation device |
| CN112897618A (en) * | 2021-01-25 | 2021-06-04 | 浙江大学 | Three-dimensional photothermal conversion material capable of efficiently treating saline water and wastewater, device and method |
| CN112968657A (en) * | 2021-02-05 | 2021-06-15 | 浙江工商大学 | Photo-thermal coupling system and application |
| CN112960719A (en) * | 2021-02-22 | 2021-06-15 | 北京九泉科技有限公司 | Water purification system of high-efficient water purification |
| CN112960719B (en) * | 2021-02-22 | 2021-11-12 | 北京九泉科技有限公司 | Water purification system of high-efficient water purification |
| CN113149114A (en) * | 2021-04-06 | 2021-07-23 | 清华大学 | Solar water evaporation material |
| CN113149114B (en) * | 2021-04-06 | 2022-05-24 | 清华大学 | Solar water evaporation material |
| CN113184940A (en) * | 2021-04-22 | 2021-07-30 | 江南大学 | Photo-thermal conversion material and application thereof in seawater desalination and salt recovery |
| CN113401965A (en) * | 2021-06-08 | 2021-09-17 | 孔令斌 | Flip formula solar energy sea water desalination device |
| CN113499483A (en) * | 2021-06-28 | 2021-10-15 | 福州大学 | Nano copper sulfide coating modified memory alloy esophageal stent and preparation method thereof |
| CN113499483B (en) * | 2021-06-28 | 2022-05-24 | 福州大学 | Nano copper sulfide coating modified memory alloy esophageal stent and preparation method thereof |
| CN114477341A (en) * | 2022-01-27 | 2022-05-13 | 河南工业大学 | Preparation method and application of solar photo-thermal conversion composite film |
| CN114477341B (en) * | 2022-01-27 | 2023-12-29 | 河南工业大学 | Preparation method and application of solar photo-thermal conversion composite film |
| CN115491805A (en) * | 2022-09-23 | 2022-12-20 | 天津工业大学 | Photothermal conversion composite fabric and solar drinking water generation device thereof |
| CN115491805B (en) * | 2022-09-23 | 2023-11-17 | 天津工业大学 | Photo-thermal conversion composite fabric and solar drinking water generation device thereof |
| CN115432763A (en) * | 2022-10-19 | 2022-12-06 | 辽宁大学 | Solar interface evaporation water purifier for seawater desalination |
| CN115432763B (en) * | 2022-10-19 | 2023-12-29 | 辽宁大学 | Solar energy interface evaporation water purifier for sea water desalination |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111302423B (en) | 2022-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111302423B (en) | Solar water purifier based on interface solar photothermal conversion | |
| CN103739029B (en) | Solar concentrating distillation seawater desalination device | |
| CN107879405A (en) | A kind of solar energy water evaporation purifying and decomposer | |
| CN108925309B (en) | Self-water supply system for agricultural greenhouse | |
| CN113184940A (en) | Photo-thermal conversion material and application thereof in seawater desalination and salt recovery | |
| CN113023809B (en) | Preparation method of membrane material for solar interface evaporation seawater desalination | |
| CN108558100B (en) | Portable solar photo-thermal conversion water treatment purification device | |
| CN109292869B (en) | Solar seawater desalination device based on gas-liquid interface heating and application | |
| CN112978834B (en) | Solar seawater desalination device of water surface floating type condenser | |
| CN113321256B (en) | Active salt-resistant solar evaporator and application thereof | |
| CN110510689A (en) | A kind of photo-thermal sea water desalination material of multilevel structure and its preparation method and application | |
| CN109603596A (en) | A kind of metal-organic framework material photo-thermal sea water desalination membrane | |
| CN111547802A (en) | Multistage ladder-shaped distiller and method for solar photo-thermal evaporation seawater desalination | |
| Ma et al. | Orientational seawater transportation through Cu (TCNQ) nanorod arrays for efficient solar desalination and salt production | |
| CN104383902A (en) | Titanate nanosheet photocatalytic membrane material, as well as preparation method and application thereof | |
| CN113896269A (en) | High-efficient solar energy sea water desalination device based on interface evaporation | |
| CN115215402A (en) | Solar photo-thermal evaporation steam collecting device | |
| CN112707391A (en) | Self-water-supply type light hot water evaporation device based on composite hydrogel | |
| CN112960719B (en) | Water purification system of high-efficient water purification | |
| CN215439745U (en) | Sunshine room water purification device based on plumbous drawing optothermal evaporator | |
| He et al. | Photocorrosion-based BiOCl photothermal materials for synergistic solar-driven desalination and photoelectrochemistry energy storage and release | |
| CN100581989C (en) | Method for producing hydrogen gas and methanol using solar energy | |
| CN116239078B (en) | Hydrogen production device and method by photolysis of water | |
| CN107937969A (en) | A kind of GN Sb2Se3The preparation method of laminated film | |
| CN110407273A (en) | A kind of design of the photo-thermal surface water evaporation device based on lanthanum hexaboride nanoparticle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |