CN110776034A - Modularized solar distillation desalination device - Google Patents
Modularized solar distillation desalination device Download PDFInfo
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- CN110776034A CN110776034A CN201911140733.4A CN201911140733A CN110776034A CN 110776034 A CN110776034 A CN 110776034A CN 201911140733 A CN201911140733 A CN 201911140733A CN 110776034 A CN110776034 A CN 110776034A
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- 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
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- 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
- C02F1/043—Details
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a modular solar distillation desalination device, which comprises at least one photo-thermal evaporation module, wherein a partition plate with an opening at the upper part and a liquid distribution partition plate which are arranged in a box body of the photo-thermal evaporation module divide the space in the box body into a condensation chamber, an evaporation chamber and a heat storage chamber; the upper surface of the liquid distribution partition plate is provided with a photo-thermal conversion film, a condensing coil and a heat storage coil are arranged in the condensing chamber and the heat storage chamber, and the other end of the heat storage coil penetrates through the side plate to form a cooling water outlet; the phase-change heat storage material is arranged in the heat storage chamber, and the raw material water inlet is positioned on the side plate on the right side of the partition plate and above the liquid distribution partition plate provided with the photo-thermal conversion film; a concentrated water outlet is arranged on the side plate at the bottom of the evaporation chamber, and a fresh water outlet is arranged at the bottom of the condensation chamber; the invention can expand the photo-thermal evaporation module according to the requirements, meets different water requirements, has simple structure, reliable operation and high photo-thermal conversion efficiency, and is suitable for desalting seawater or brackish water in remote areas lacking fresh water and electric power.
Description
Technical Field
The invention belongs to the technical field of solar seawater desalination, and relates to a modular solar distillation desalination device.
Technical Field
With the increase of population and the continuous development of economic society, water resource shortage becomes a problem to be solved urgently in the current society, and desalination by using seawater or brackish water is one of important means for solving the shortage of fresh water. There are many methods for desalinating seawater or brackish water, and conventional methods for desalinating seawater include distillation, reverse osmosis, electrodialysis, and the like, which consume a large amount of fuel or electric power. With the rapid increase of the installed capacity of seawater desalination, a series of problems occur, and the most prominent problem is the problem of energy consumption. The solar energy is inexhaustible, and is the cleanest, safest and most abundant energy in the world. China is a country with abundant solar energy resources, and more than two thirds of regions have annual solar irradiation amount exceeding 5000MJ/m
2Especially in desert, island and other edge area, the average annual sunshine time is over 2300 hr and the average solar heat flow density is 600W/m
2In the above, the desalination technology of producing fresh water by solar distillation is more and more favored by people. The solar distillation desalination has the advantages of no pollution, low energy consumption, no limitation by steam, electric power and other conditions, no consumption of conventional energy sources such as petroleum, natural gas, coal and the like, and is particularly suitable for seawater desalination and brackish water desalination in desert, island, remote rural areas and other areas with power resource shortage.
The solar energy distillation seawater desalination utilizes the radiation heat energy of the sun to heat the seawater, so that the temperature of the seawater is raised and evaporated, and the steam is condensed to obtain fresh water. The solar distiller has the beneficial effects that the solar distiller has low running temperature, low water yield, low solar utilization efficiency, low unit water yield, high equipment investment and other non-utilization factors for a long time, so that the popularization and the application of the solar distiller are greatly limited. Under the optimal operation condition, the highest thermal efficiency is 35%, and the water yield per unit area is 3-4L/d, and one important reason is that the heat capacity of the seawater to be evaporated is too large, the photothermal conversion efficiency is low, and thus the driving force for evaporation is weakened. Researchers have proposed many effective passive strengthening measures for improving the performance of the solar still, such as adding dyes, charcoal, sponge, etc. to the seawater to reduce the heat capacity of the seawater in the device, designing multi-stage stacked plates, disposing circulating cooling water pipes around the evaporator to recover the latent heat of condensation of the steam, etc., but the water yield of the solar still is still not high, and the economic efficiency is still not ideal. The active solar seawater desalination system strengthens convection heat transfer, but the operating temperature of the system is increased due to the need of auxiliary equipment, or the heat and mass transfer processes in the system are improved, but the manufacturing cost of the system is increased due to the auxiliary equipment, the operating stability is reduced, and the auxiliary equipment is needed to assist. Therefore, only by improving the solar radiation absorption rate and the solar photo-thermal conversion efficiency, the water yield per unit area can be fundamentally improved, and the popularization and application of the solar distillation seawater desalination technology can be promoted.
Disclosure of Invention
The invention aims to overcome the defects of low photo-thermal conversion efficiency, low evaporation rate and low fresh water yield in the prior art, and provides a modular solar distillation desalination device.
The technical scheme of the invention is summarized as follows:
the utility model provides a modularization solar energy distillation desalination device, includes at least one light and heat evaporation module, light and heat evaporation module includes the box of compriseing roof, bottom plate 12 and curb plate 8, and the roof comprises light-tight board 3 and light-passing board 7, and the upper portion open-ended baffle 4 that sets up in the box separates into the box inner space with cloth liquid baffle 11: a condensing chamber 23 located at the left side, an evaporating chamber 22 at the upper part of the right side, and a heat storage chamber 24 at the lower part of the right side; the upper surface of the liquid distribution partition plate 11 is provided with a photo-thermal conversion film 6, a condensing coil 2 is arranged in a condensing chamber, one end of the condensing coil penetrates through the side plate to be a cooling water inlet 1, the other end of the condensing coil penetrates through the partition plate to be connected with one end of a heat storage coil 26 in the heat storage chamber, and the other end of the heat storage coil 26 penetrates through the side plate to be a cooling water outlet 10; the phase-change heat storage material 25 is arranged in the heat storage chamber, and the raw material water inlet 5 is positioned on the side plate on the right side of the partition plate and above the liquid distribution partition plate 11 provided with the photo-thermal conversion film; a concentrated water outlet 9 is arranged on the side plate at the bottom of the evaporation chamber, and a fresh water outlet 14 is arranged at the bottom of the condensation chamber; the liquid distribution partition plate 11 is a corrugated plate, a circular convex array plate, a rectangular convex array plate or a polygonal convex array plate.
The end of the condensation chamber of the box body is inclined upwards, so that the included angle between the bottom plate of the box body and the horizontal plane is 30-65 degrees.
The photo-thermal conversion film is made of black polymer fiber cloth, black carbon fiber cloth, black cotton cloth or black water-absorbing sponge.
The phase-change heat storage material is paraffin, palmitic acid, myristic acid, lauric acid or 2-hydroxy-methyl octadecanoate.
The invention has the beneficial effects that: compared with the traditional solar distiller, the seawater is uniformly distributed on the concave surface of the liquid distribution clapboard of the modular solar distillation desalination device, as the photothermal conversion film is laid on the upper surface of the liquid distribution clapboard, the seawater is rapidly diffused to the convex surface side to form a liquid film, the high-temperature liquid film is rapidly evaporated under solar radiation, the steam evaporated from the raw material water enters the condensing chamber from the opening of the evaporating chamber and the condensing chamber upwards in the evaporating chamber, the heat exchange is carried out between the condensing chamber and the cooling water, the fresh water is obtained by condensation of the condensing coil pipe, the temperature of the cooling water is raised after the heat exchange and enters the heat storage chamber to heat the phase-change heat storage material, one function is to cool the cooling water for recycling, the other function is to recover the condensation latent heat of the steam, the heat is transferred to the raw material water through the liquid distribution clapboard, the temperature of the raw material water is improved, the raw material water, the invention has the advantages of high photo-thermal conversion efficiency, high evaporation rate, relatively improved fresh water yield, capability of forming arrays by the photo-thermal evaporation module in a transverse and longitudinal expansion mode according to water requirements, standardized quick connectors and simple and convenient installation.
Drawings
Fig. 1 is a schematic structural diagram of a photothermal evaporation module in a modular solar distillation desalination device.
Fig. 2 is a schematic structural view of the liquid distribution partition plate being a polygonal protrusion array plate (octagonal), wherein a is a front view of the polygonal protrusion array plate, and b is a top view of the polygonal protrusion array plate.
FIG. 3 is a schematic diagram of a modular solar distillation desalination unit (with four photothermal evaporation modules).
Detailed Description
The invention is further illustrated by the following figures.
A modularized solar distillation desalination device comprises four photothermal evaporation modules (shown in figure 3) which are transversely arranged to form a transverse array.
Every light and heat evaporation module includes the box of compriseing roof, bottom plate 12 and curb plate 8, and the roof comprises light-tight board 3 and light-passing board 7, and the upper portion open-ended baffle 4 that sets up in the box separates into the box inner space with cloth liquid baffle 11: a condensing chamber 23 located at the left side, an evaporating chamber 22 at the upper part of the right side, and a heat storage chamber 24 at the lower part of the right side; the upper surface of the liquid distribution partition plate 11 is provided with a photo-thermal conversion film 6, a condensing coil 2 is arranged in a condensing chamber, one end of the condensing coil penetrates through the side plate to be a cooling water inlet 1, the other end of the condensing coil penetrates through the partition plate to be connected with one end of a heat storage coil 26 in the heat storage chamber, and the other end of the heat storage coil 26 penetrates through the side plate to be a cooling water outlet 10; the phase-change heat storage material 25 is arranged in the heat storage chamber, and the raw material water inlet 5 is positioned on the side plate on the right side of the partition plate and above the liquid distribution partition plate 11 provided with the photo-thermal conversion film; a concentrated water outlet 9 is arranged on the side plate at the bottom of the evaporation chamber, and a fresh water outlet 14 is arranged at the bottom of the condensation chamber; the liquid distribution partition plate 11 is a corrugated plate, a circular convex array plate, a rectangular convex array plate or a polygonal convex array plate, as shown in fig. 2.
The condensation chamber end of the box body is inclined upwards, so that the included angle between the bottom plate of the box body and the horizontal plane is any one of 30-65 degrees, such as 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees and 65 degrees.
The photo-thermal conversion film is made of black polymer fiber cloth, black carbon fiber cloth, black cotton cloth or black water-absorbing sponge.
The phase-change heat storage material is paraffin, palmitic acid, myristic acid, lauric acid or 2-hydroxy-methyl octadecanoate.
The photothermal conversion film is made of a material with extremely high light absorption and hydrophilicity, raw seawater is uniformly distributed on the surface of the photothermal conversion film, and is rapidly diffused to form a seawater liquid film, and the seawater liquid film is subjected to solar radiation to form a hot spot and is rapidly evaporated, so that the photothermal conversion efficiency is improved, and the photothermal conversion film is replaceable.
The liquid distribution partition plate 11 is made of stainless steel, copper or titanium.
The light-transmitting plate 7 is made of glass, polycarbonate, polyvinyl chloride or polymethyl methacrylate, and can be opened and replaced.
When the liquid distribution partition 11 is a convex array plate, the convex surface of the convex array plate faces the side of the evaporation chamber light-transmitting plate, and the convex surface may be circular, rectangular or polygonal.
The outer surfaces of the light-tight plate, the side plates and the bottom plate are preferably wrapped with heat-insulating materials, and the heat-insulating materials are rock wool, foamed polystyrene plastic, foamed rubber or foamed polyurethane plastic and the like.
The modular solar distillation desalination device also comprises a raw material water tank 15, a concentrated water tank 17, a fresh water tank 18 and a cooling water tank 19.
The raw material water tank 15 is connected with raw material water inlet valves 13-1, 13-2, 13-3 and 13-4 through pipelines and then is respectively connected with a raw material water inlet 5 of each photo-thermal evaporation module;
the concentrated water tank 17 is connected with the concentrated water outlet 9 of each photothermal evaporation module through a pipeline.
The fresh water tank 18 is respectively connected with the fresh water outlet 14 of each photothermal evaporation module through a pipeline.
The cooling water tank 19 is connected with the cooling water outlet 10 of each photo-thermal evaporation module through a pipeline, the cooling water tank 19 is divided into two paths after being connected with the circulating water pump 20 through a pipeline, and one path is respectively connected with the cooling water inlet 1 of each photo-thermal evaporation module; and the other path is connected with a water replenishing valve 21 and then is connected with a raw material water tank 15.
The process of using the device of the invention to desalt the sea water is as follows:
raising the raw material water tank 15, and enabling the water outlet of the raw material water tank 15 to be higher than the water inlet 5 of the raw material water, and enabling the positions of the fresh water outlet 14, the concentrated water outlet 9 and the cooling water outlet 10 to be higher than the positions of the fresh water tank 18, the concentrated water tank 17 and the cooling water tank 19; filling a cooling water tank 19 with raw material water, starting a circulating water pump 20, valves of a cooling water inlet 1 and a cooling water outlet 10 of each photo-thermal evaporation module to perform cooling water circulation, enabling the cooling water to exchange heat with steam in the photo-thermal evaporation module through a condensing coil 2, enabling the temperature of the steam to rise after the steam is condensed, enabling the steam to enter a heat storage chamber to exchange heat with a phase-change heat storage material 25 through a heat storage coil 26, transferring the heat to the phase-change heat storage material 25, opening a water replenishing valve 21 to a certain opening degree, enabling the heated cooling water to enter a raw material water tank 15, opening raw material water inlet valves 13-1, 13-2, 13-3 and 13-4 of each photo-thermal evaporation module, controlling the water inlet flow rate, enabling the raw material water to slowly enter a raw material water inlet 5 of an evaporation chamber 22, enabling the raw material water to be uniformly distributed along grooves of a liquid distribution partition plate 11, and enabling a photo-thermal conversion film, raw material water is uniformly diffused to the convex part of the liquid distribution clapboard 11 to form a liquid film, the liquid film of the raw material water is rapidly heated and evaporated after being subjected to the strong light absorption of the photo-thermal conversion film 6 after being irradiated by the sun to form steam which upwards enters the condensing chamber 23, the fresh water is condensed into fresh water on the outer wall of the condensing coil 2, the fresh water is collected at the bottom of the condensing chamber 23 and then discharged from the fresh water outlet 14, the fresh water enters the fresh water tank 18, the non-evaporated concentrated water is discharged from the concentrated water outlet 9 to the concentrated water tank 17, the cooling water enters the heat storage chamber 24 after exchanging heat with the steam in the condensing chamber 23, exchanges heat with the phase-change heat storage material 25, continuously heats the phase-change heat storage material 25, when the evaporative vapor is not sufficiently heated by heat exchange with the cooling water due to the reduction in the intensity of solar radiation to heat the phase change heat storage material 25, the phase-change heat storage material 25 continuously provides heat energy for the raw material water through the liquid distribution partition plate 11, the raw material water can be continuously evaporated, the evaporation time is prolonged, and the water yield is increased.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The utility model provides a modularization solar energy distillation desalination device, includes at least one light and heat evaporation module, light and heat evaporation module includes the box of compriseing roof, bottom plate (12) and curb plate (8), characterized by the roof comprises light-tight board (3) and light-tight board (7), and upper portion open-ended baffle (4) and cloth liquid baffle (11) that set up in the box separate into the box inner space: a condensing chamber (23) positioned on the left side, an evaporating chamber (22) positioned on the upper part of the right side and a heat storage chamber (24) positioned on the lower part of the right side; a photo-thermal conversion film (6) is arranged on the upper surface of the liquid distribution partition plate (11), a condensing coil (2) is arranged in the condensing chamber, one end of the condensing coil penetrates through the side plate to form a cooling water inlet (1), the other end of the condensing coil penetrates through the partition plate to be connected with one end of a heat storage coil (26) in the heat storage chamber, and the other end of the heat storage coil (26) penetrates through the side plate to form a cooling water outlet (10); a phase-change heat storage material (25) is arranged in the heat storage chamber, and a raw material water inlet (5) is positioned on a side plate on the right side of the partition plate and above the liquid distribution partition plate (11) provided with the photo-thermal conversion film; a concentrated water outlet (9) is arranged on the side plate at the bottom of the evaporation chamber, and a fresh water outlet (14) is arranged at the bottom of the condensation chamber; the liquid distribution partition plate (11) is a corrugated plate, a circular convex array plate, a rectangular convex array plate or a polygonal convex array plate.
2. The apparatus of claim 1, wherein the condensation chamber end of the housing is upwardly inclined such that the floor of the housing is at an angle of 30-65 degrees to the horizontal.
3. The device of claim 1, wherein the photo-thermal conversion film is made of black polymer fiber cloth, black carbon fiber cloth, black cotton cloth or black absorbent sponge.
4. The device of claim 1, wherein the phase change heat storage material is paraffin, palmitic acid, myristic acid, lauric acid, or methyl 2-hydroxy-octadecanoate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911140733.4A CN110776034A (en) | 2019-11-20 | 2019-11-20 | Modularized solar distillation desalination device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911140733.4A CN110776034A (en) | 2019-11-20 | 2019-11-20 | Modularized solar distillation desalination device |
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| CN110776034A true CN110776034A (en) | 2020-02-11 |
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| CN201911140733.4A Pending CN110776034A (en) | 2019-11-20 | 2019-11-20 | Modularized solar distillation desalination device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028158A (en) * | 2020-08-03 | 2020-12-04 | 桂林电子科技大学 | Solar-driven water treatment device |
| CN112250128A (en) * | 2020-09-14 | 2021-01-22 | 保定风帆精密机械科技有限公司 | Seawater desalination device |
| CN113699686A (en) * | 2021-09-18 | 2021-11-26 | 浙江理工大学 | Photo-thermal conversion composite carbon nanofiber membrane and preparation method thereof |
| CN114349099A (en) * | 2021-12-28 | 2022-04-15 | 郑州大学 | Solar phase-change heat storage seawater desalination system |
| CN114620793A (en) * | 2022-03-21 | 2022-06-14 | 北京科技大学 | All-weather water taking device and water taking method |
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| CN2148072Y (en) * | 1993-01-13 | 1993-12-01 | 张学义 | Solar seawater desalting device |
| JP2001070929A (en) * | 1999-09-07 | 2001-03-21 | Kawasaki Heavy Ind Ltd | Solar heat-photocell hybrid type desalination apparatus |
| CN103708573A (en) * | 2013-12-24 | 2014-04-09 | 国家海洋局天津海水淡化与综合利用研究所 | Reinforced convection heat transfer type solar distillation sea water desalting device |
| CN105565412A (en) * | 2016-03-03 | 2016-05-11 | 国家海洋局天津海水淡化与综合利用研究所 | External condensation-style inclined core-type solar seawater distillation and desalination device |
| US20160146507A1 (en) * | 2014-11-23 | 2016-05-26 | Richard Lee Johnson | Solid state solar thermal energy collector |
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2019
- 2019-11-20 CN CN201911140733.4A patent/CN110776034A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2148072Y (en) * | 1993-01-13 | 1993-12-01 | 张学义 | Solar seawater desalting device |
| JP2001070929A (en) * | 1999-09-07 | 2001-03-21 | Kawasaki Heavy Ind Ltd | Solar heat-photocell hybrid type desalination apparatus |
| CN103708573A (en) * | 2013-12-24 | 2014-04-09 | 国家海洋局天津海水淡化与综合利用研究所 | Reinforced convection heat transfer type solar distillation sea water desalting device |
| US20160146507A1 (en) * | 2014-11-23 | 2016-05-26 | Richard Lee Johnson | Solid state solar thermal energy collector |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028158A (en) * | 2020-08-03 | 2020-12-04 | 桂林电子科技大学 | Solar-driven water treatment device |
| CN112250128A (en) * | 2020-09-14 | 2021-01-22 | 保定风帆精密机械科技有限公司 | Seawater desalination device |
| CN113699686A (en) * | 2021-09-18 | 2021-11-26 | 浙江理工大学 | Photo-thermal conversion composite carbon nanofiber membrane and preparation method thereof |
| CN113699686B (en) * | 2021-09-18 | 2023-09-01 | 浙江理工大学 | Photo-thermal conversion composite nano carbon fiber membrane and preparation method thereof |
| CN114349099A (en) * | 2021-12-28 | 2022-04-15 | 郑州大学 | Solar phase-change heat storage seawater desalination system |
| CN114620793A (en) * | 2022-03-21 | 2022-06-14 | 北京科技大学 | All-weather water taking device and water taking method |
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Application publication date: 20200211 |