CN114620793A - All-weather water taking device and water taking method - Google Patents

All-weather water taking device and water taking method Download PDF

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Publication number
CN114620793A
CN114620793A CN202210299714.1A CN202210299714A CN114620793A CN 114620793 A CN114620793 A CN 114620793A CN 202210299714 A CN202210299714 A CN 202210299714A CN 114620793 A CN114620793 A CN 114620793A
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water
seawater
storage chamber
change heat
weather
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CN114620793B (en
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王存海
陈姿颖
董明宇
李霁野
韩璐阳
吴文俊
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University of Science and Technology Beijing USTB
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University of Science and Technology Beijing USTB
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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
    • 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
    • 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
    • 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
    • Y02A20/212—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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

The invention discloses an all-weather water taking device and a water taking method. The method comprises the following steps: in the daytime, under the action of sunlight, seawater is changed into water vapor from a liquid state, the water vapor is liquefied into water, and energy in the sunlight is stored in the phase-change heat storage material; at night, the energy stored by the phase-change heat storage material is rapidly led out, the seawater absorbs the led-out energy and is changed into water vapor from liquid seawater, the water vapor is liquefied into water, and meanwhile, the radiation refrigeration coating generates cold energy to condense the water vapor in the air on the surface of the coating, so that water is taken from the air. The device can realize continuous water taking at day and night, and has the advantages of high heat utilization rate, high seawater desalination efficiency, strong stability, good economy and environmental friendliness.

Description

All-weather water taking device and water taking method
Technical Field
The invention relates to the technical field of water taking devices, in particular to an all-weather water taking device and a water taking method.
Background
Over the past decades, due to the continuous increase in demand for fresh water resources, shortage of fresh water resources has become one of the important threats for human beings to realize a sustainable development road. And nearly 97.5% of the total water resources in the world are saline water resources such as seawater, so that seawater desalination is considered as the most practical method for continuously providing a fresh water source.
The traditional seawater desalination technology needs to be driven by burning fossil energy, which greatly increases the emission of greenhouse gases, and the solar seawater desalination has the advantages of low cost, environmental friendliness and the like, and is a clean and renewable water treatment technology.
The working process of the existing solar interface photothermal evaporation seawater is roughly as follows. Incident sunlight is absorbed by a photo-thermal absorption layer of the interface photo-thermal evaporator and is converted into heat energy, and then the photo-thermal absorption layer heats water in a surface water layer and evaporates the water into steam. Along with the continuous absorption sunlight of light and heat absorbed layer, the water in surface water layer evaporates gradually, and the impurity of aquatic is detained in light and heat absorbed layer to the collection of vapor has been realized. However, the existing interface photo-thermal evaporation unit mainly absorbs and utilizes solar energy to take water in daytime, cannot work continuously, and cannot take water in all weather.
Disclosure of Invention
The invention provides an all-weather water taking device and an all-weather water taking method.
To solve the above technical problem, an embodiment of the present invention provides the following solutions:
in one aspect, an embodiment of the invention provides an all-weather water taking device, which includes a machine body having a skeleton structure formed by double-layer glass, a seawater storage chamber and a fresh water storage chamber are arranged in the machine body, a phase-change heat storage unit is arranged at the bottom in the seawater storage chamber, an interface photothermal evaporation unit floats on the surface of seawater in the seawater storage chamber, and the top of the machine body is inclined downwards from the seawater storage chamber to the fresh water storage chamber.
Preferably, the phase change heat storage units are arranged in a zigzag structure at the outer part, are arranged at the bottom in the seawater storage chamber in a staggered mode, and form a flow-dividing seawater channel among the phase change heat storage units.
Preferably, the phase change heat storage unit comprises a shell, wherein reinforcing ribs are arranged in the shell, phase change materials are filled in the shell, and the shell is connected with the end cover.
Preferably, the shell and the end cover are made of copper alloy; the reinforcing ribs are made of stainless steel.
Preferably, a radiation cooling coating is provided on the top of the housing.
Preferably, the radiation-cooling coating comprises, from outside to inside, 20um thick fluorine-containing resin, 50um thick polyethylene terephthalate, 20nm thick indium tin oxide and 30nm thick silver.
Preferably, the interface photothermal evaporation unit comprises a black sponge, a surface water layer is arranged at the top of the black sponge, a glass tube is arranged at the bottom of the black sponge, absorbent cotton is filled in the glass tube, a foam plate is penetrated through the bottom of the glass tube, and the foam plate, the bottom of the glass tube and the absorbent cotton inside the glass tube are contacted with seawater in the seawater storage chamber.
Preferably, the device further comprises a radiation refrigeration condensation fresh water chamber, and the radiation refrigeration condensation fresh water chamber is arranged in the machine body and positioned on the side face of the fresh water storage chamber.
Preferably, a seawater storage chamber water inlet electromagnetic valve is arranged at a water inlet of the seawater storage chamber, and an ultrafiltration membrane is arranged in the seawater storage chamber water inlet electromagnetic valve.
In another aspect, an embodiment of the present invention provides an all-weather water getting method, where the method utilizes the all-weather water getting apparatus, and the method includes:
in the daytime, under the action of sunlight, seawater is changed into water vapor from liquid seawater, and the water vapor is liquefied into water; the phase-change heat storage unit absorbs sunlight, and energy in the sunlight is stored in the phase-change heat storage material;
at night, when the temperature is lower than the phase change temperature of the phase change heat storage unit, the energy stored by the phase change heat storage material is quickly led out through the phase change heat storage unit, the seawater absorbs the led-out energy and is changed into water vapor from liquid seawater, the water vapor is liquefied into water, and meanwhile, the radiation refrigeration coating generates cold energy to condense the water vapor in the air on the surface of the coating, so that the water taking from the air is realized.
The scheme of the invention at least comprises the following beneficial effects:
in the scheme, in the all-weather water taking device, in the daytime, under the action of sunlight, seawater is changed into water vapor from liquid seawater, the water vapor is liquefied into water, the phase-change heat storage unit absorbs the sunlight, and energy in the sunlight is stored in the phase-change heat storage material; at night, the energy stored by the phase-change heat storage material is quickly led out through the phase-change heat storage unit, the led-out energy is absorbed by seawater in a seawater storage chamber, the seawater is changed into water vapor from liquid seawater, the water vapor is liquefied into water, and meanwhile, the refrigeration coating is radiated to generate cold energy so that the water vapor in the air is condensed on the surface of the coating; continuous water taking in the day and at night and all-weather water taking are realized; the double-layer glass is used as a framework structure of an all-weather water taking device, the excellent heat insulation performance of the double-layer glass can enable the interior of the device to generate a greenhouse effect, and the temperature in the device is increased to promote the evaporation of seawater; the phase-change material absorbs heat in the daytime, and the heat of the phase-change material is directly transferred to seawater at night, so that the utilization rate of the heat is high, the efficiency of interface photothermal evaporation seawater desalination is improved, the stability is high, the solar energy is driven, the economy is good, and the characteristics of low price and environmental friendliness are achieved;
the all-weather water taking method can realize continuous water taking in daytime and at night, can take water in all weather, has high heat utilization rate, improves the efficiency of interface photothermal evaporation seawater desalination, and has strong stability, solar drive, good economical efficiency, low price and environmental friendliness.
Drawings
FIG. 1 is a side sectional view of an all-weather water intake device according to the present invention;
FIG. 2 is a front sectional view of the all-weather water intake device of the present invention;
FIG. 3 is a top sectional view of the all-weather water intake apparatus of the present invention;
FIG. 4 is a schematic structural diagram of an electromechanical control box of the all-weather water taking device of the invention;
FIG. 5 is a schematic structural view of an interface photothermal evaporation unit of the all-weather water intake device of the present invention;
FIG. 6 is a schematic structural view of a serrated plate shunt channel heat storage module of the all-weather water intake device of the present invention;
FIG. 7 is a flow chart of the all-weather water intake method of the present invention.
Reference numerals:
1. a radiation-cooled coating; 2. double-layer glass; 3. an interface photothermal evaporation unit; 4. a rear window; 5. a seawater storage chamber; 6. a phase change heat storage unit; 7. a seawater storage chamber water inlet electromagnetic valve; 8. a steering wheel; 9. a glass separator; 10. a top plate rotating shaft; 11. a fresh water storage chamber; 12. a radiation refrigeration condensation fresh water chamber; 13. the water outlet electromagnetic valve of the radiation refrigeration condensation fresh water chamber; 14. the fresh water storage chamber is provided with a water outlet electromagnetic valve; 15. a water outlet electromagnetic valve of the seawater storage chamber; 16. a light source tracker; 17. a solar panel; 18. a three-degree-of-freedom mobile platform; 19. a lithium battery; 20. a main control board; 21. a surface water layer; 22. black sponge; 23. a glass tube; 24. absorbent cotton; 25. a foam board.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example one
As shown in fig. 1 to 6, the present embodiment provides an all-weather water intake device, which includes a body having a skeleton structure formed by double glass 2, a seawater storage chamber 5 and a fresh water storage chamber 11 disposed in the body, a phase change heat storage unit 6 disposed at the bottom of the seawater storage chamber 5, an interface photothermal evaporation unit 3 floating on the surface of seawater in the seawater storage chamber 5, and a top of the body inclined downward from the seawater storage chamber 5 to the fresh water storage chamber 11. In the embodiment of the invention, in the daytime, seawater enters the seawater storage chamber 5, the interface photo-thermal evaporation unit 3 transports the seawater from the lower end to the upper end, and the seawater is changed into water vapor from liquid seawater under the action of sunlight; the phase-change heat storage unit 6 absorbs sunlight, the phase-change heat storage material of the phase-change heat storage unit 6 is converted from a solid state to a liquid state, energy in the sunlight is stored in the phase-change heat storage material, and water vapor is liquefied into water when encountering the double-layer glass 2 and flows into the fresh water storage chamber 11 along the top of the machine body for storage; at night, when the temperature is lower than the phase change temperature of the phase change heat storage unit 6, the phase change heat storage material is converted from a liquid state to a solid state, the energy stored by the phase change heat storage material is rapidly led out through the phase change heat storage unit 6, the led-out energy is absorbed by seawater in the seawater storage chamber 5, the seawater is converted from liquid seawater to vapor, and the vapor is liquefied into water when meeting the double-layer glass 2 and flows into the fresh water storage chamber 11 along the top of the machine body for storage. The all-weather water intaking device of this embodiment can realize utilizing solar energy water intaking daytime, and 6 heat absorptions daytime in the phase change heat-retaining unit, and 6 heat dissipations are gone up to night in the phase change heat-retaining unit, realize the water intaking night, can realize daytime, night continuous water intaking, have realized all-weather water intaking. The double-layer glass 2 of the embodiment is used as a framework structure of an all-weather water taking device, and the excellent heat insulation performance of the double-layer glass can generate a greenhouse effect in the device and raise the temperature in the device to promote the evaporation of seawater. The all-weather water intake device of this embodiment, phase change material heat absorption daytime, the absorptive is the heat of sea water, and phase change material's heat direct transfer does not pass through the solar evaporation surface for the sea water evening, heat transfer process, and heat utilization rate is high, has improved interface light and heat evaporation sea water desalination's efficiency, and stability is strong, can move all-weather earlier, solar drive, and economic nature is good, and possesses low price, environment-friendly characteristics.
As shown in fig. 6, the phase change heat storage units 6 of the present embodiment are in a zigzag structure, and the phase change heat storage units 6 are arranged at the bottom of the seawater storage chamber 5 in a staggered manner, a split seawater channel is formed between the phase change heat storage units 6, and seawater flows in the split seawater channel. The phase-change heat storage unit comprises a shell, reinforcing ribs are arranged in the shell, phase-change materials are filled in the shell, and the shell is connected with an end cover. The shell and the end cover are made of copper alloy; the reinforcing ribs are made of stainless steel. The phase change heat storage unit 6 comprises a shell and an end cover obtained by stamping, a steel reinforcing rib is arranged in the shell, and a phase change material Na is filled in the shell2HPO4·12H2And O, compacting the material inlet by a crimping punch, covering the shell and the end cover, and welding an end cover seam by argon arc welding to obtain the phase change heat storage unit 6. The shell and the end cover are packaged by copper alloy, and stainless steel is used for internal support, so that the temperature distribution is more uniform, and the problem of local stress concentration is relieved; the phase change heat storage unit 6 adopts a sawtooth plate shunting channel heat storage module structure. The phase-change material of the phase-change heat storage unit 6 is Na2HPO4·12H2And O, taking the expanded graphite matrix as a framework, and embedding and wrapping the phase change material by utilizing the microstructure of the matrix, wherein the phase change temperature is 40 ℃, and the phase change latent heat is 279.6 kJ/kg.
This embodiment is provided with a radiation cooling coating 1 on top of the housing. The radiation refrigeration coating 1 comprises, from outside to inside, 20um thick fluorine-containing resin, 50um thick polyethylene terephthalate, 20nm thick indium tin oxide and 30nm thick silver. At night, the radiation refrigeration coating 1 emits infrared radiation of 8-13 μm to the outer space, the surface temperature of the coating is reduced, water vapor in the air around the coating is condensed, and condensed water flows into the radiation refrigeration condensation fresh water chamber 12 along the double-layer glass 2 at the top of the machine body to be stored.
The device of the embodiment also comprises a radiation refrigeration condensation fresh water chamber 12, and the radiation refrigeration condensation fresh water chamber 12 is arranged in the machine body and is positioned at the side surface of the fresh water storage chamber 11. The machine body is provided with a rear window 4 which is convenient for taking out the interface photo-thermal evaporation unit 3 for material replacement, repair and other operations after being opened. The top of the machine body is provided with a top plate rotating shaft 10, and the top of the machine body can be lifted along the top plate rotating shaft 10, so that the inside of the device is convenient to clean. A glass partition 9 is installed between the fresh water storage chamber 11 and the seawater storage chamber 5. A steering wheel 8 is arranged below the machine body, and the steering wheel 8 is responsible for controlling the device to face the sun all the time.
As shown in fig. 5, the interfacial photothermal evaporation unit 3 of the present embodiment comprises a surface water layer 21, a black sponge 22, a glass tube 23, a piece of absorbent cotton 24 and a foam board 25, which are sequentially arranged, specifically, the surface water layer 21 is arranged on the top of the black sponge 22, the glass tube 23 is arranged on the bottom, the absorbent cotton 24 is filled in the glass tube 23, the foam board 25 is penetrated through the bottom of the glass tube 23, and the foam board 25, the glass tube 23 and the absorbent cotton 24 inside the glass tube 23 contact the seawater in the seawater storage chamber 5. The black sponge 22 absorbs the water in the solar photo-thermal evaporation surface water layer 21, the lower end of the glass tube 23 is immersed in the seawater, so that the absorbent cotton 24 absorbs the water and transports the water to the surface water layer 21, and the foam plate 25 enables the interface photo-thermal evaporation unit to float on the water surface as a whole. The absorbent cotton 24 stores the adsorbed water as a water reservoir. The all-weather water taking device of the embodiment converts collected solar radiation energy into heat energy and then limits the heat energy to the thin surface water layer 21 instead of heating the whole water body, so that the heat energy can be directly and effectively absorbed and utilized by the surface water layer 21, the heat loss of the heat energy in the water body and the surrounding environment is greatly reduced, and the photo-thermal conversion efficiency is integrally improved. Double glazing 2 adopts to have antifog coating to spout inside double glazing 2, makes the hydrone form even water film on its surface, can't form haze on the surface, greatly reduced water smoke to the influence that interface light thermal evaporation unit 3 absorbed the sunlight, solved when seawater evaporates that double glazing 2 goes up the fog phenomenon serious, influenced glass's transmittance and then be unfavorable for the problem that the surface of thermal evaporation fully absorbed sunshine. Moreover, the light transmittance of the antifogging spray can reach 90%, and the influence of water mist on sunlight absorption of the black sponge 22 is reduced.
The inlet of the seawater storage chamber 5 is provided with a seawater storage chamber inlet electromagnetic valve 7, and an ultrafiltration membrane is arranged in the seawater storage chamber inlet electromagnetic valve 7 and is used for primarily filtering and purifying seawater. A seawater storage chamber water outlet electromagnetic valve 15 is arranged at a water outlet of the seawater storage chamber 5; a water outlet electromagnetic valve 14 of the fresh water storage chamber is arranged at a water outlet of the fresh water storage chamber 11; a fresh water storage chamber water outlet electromagnetic valve 14 is arranged at the water outlet of the radiation refrigeration condensation fresh water chamber 12;
as shown in fig. 4, the all-weather water intake device of the present embodiment utilizes an electromechanical control box to realize control, and the electromechanical control box is installed beside the all-weather water intake device. The electromechanical control box comprises a light source tracker 16, a solar cell panel 17, a three-degree-of-freedom mobile platform 18, a lithium battery 19 and a main control board. The light source tracker 16 can enable the whole device and the solar cell panel 17 to always point to the sun in the daytime so as to achieve the best efficiency, the solar cell panel 17 provides power for all devices needing power on the device, the three-degree-of-freedom moving platform 18 enables the solar cell panel 17 to point to the sun in the daytime so as to maintain the maximum power state, the lithium battery 19 supplies power for all devices at night, the solar cell panel 17 is used for charging in the daytime, and the STM32 main control panel 20 controls all devices needing program control. The main control board controls the seawater storage chamber water inlet electromagnetic valve 7, the seawater storage chamber water outlet electromagnetic valve 15, the fresh water storage chamber water outlet electromagnetic valve 14 and the fresh water storage chamber water outlet electromagnetic valve 14.
Example two
As shown in fig. 7, the present embodiment provides an all-weather water intake method, which utilizes an all-weather water intake device, and the method includes:
s100, in the daytime, seawater enters the seawater storage chamber 5 through the seawater storage chamber water inlet electromagnetic valve 7, the black sponge 22 absorbs sunlight, the absorbent cotton 24 transports the seawater in the absorbent cotton 24 from the lower end to the upper end, the seawater is changed into water vapor from liquid seawater under the action of the sunlight, and the water vapor is liquefied into water when meeting the double-layer glass 2 and flows into the fresh water storage chamber 11 along the top of the machine body for storage; the phase-change heat storage unit 6 absorbs sunlight, the phase-change heat storage material of the phase-change heat storage unit 6 is converted from a solid state to a liquid state, and energy in the sunlight is stored in the phase-change heat storage material;
s200, at night, when the temperature is lower than the phase change temperature of the phase change heat storage unit 6, the phase change heat storage material is converted from a liquid state to a solid state, the energy stored by the phase change heat storage material is rapidly led out through the phase change heat storage unit 6, the led-out energy is absorbed by seawater in the seawater storage chamber 5, the seawater is converted from liquid seawater to vapor, and the vapor is liquefied into water when meeting the double-layer glass 2 and flows into the fresh water storage chamber 11 along the top of the machine body to be stored.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The all-weather water taking device is characterized by comprising a machine body with a framework structure formed by double-layer glass, wherein a seawater storage chamber and a fresh water storage chamber are arranged in the machine body, a phase-change heat storage unit is arranged at the bottom in the seawater storage chamber, an interface photo-thermal evaporation unit floats on the seawater surface in the seawater storage chamber, and the top of the machine body is downwards inclined from the seawater storage chamber to the fresh water storage chamber.
2. The all-weather water taking device according to claim 1, wherein the phase change heat storage units are arranged in a zigzag structure on the outside, and a plurality of phase change heat storage units are arranged at the bottom in the seawater storage chamber in a staggered manner, and a flow-dividing seawater channel is formed among the plurality of phase change heat storage units.
3. The all-weather water taking device according to claim 2, wherein the phase-change heat storage unit comprises a shell, reinforcing ribs are arranged in the shell, phase-change materials are filled in the shell, and the shell is connected with an end cover.
4. The all-weather water intake apparatus of claim 3, wherein the housing and the end cap are made of copper alloy; the reinforcing ribs are made of stainless steel.
5. The all-weather water intake apparatus of claim 1, wherein a radiant cooling coating is provided on the top of the housing.
6. The all-weather water intake apparatus of claim 4, wherein the radiation-cooling coating comprises, from outside to inside, 20um thick fluororesin, 50um thick polyethylene terephthalate, 20nm thick indium tin oxide, and 30nm thick silver.
7. The all-weather water intake apparatus according to claim 1, wherein the interface photothermal evaporation unit comprises a black sponge, a surface water layer is provided on the top of the black sponge, a glass tube is provided on the bottom of the black sponge, absorbent cotton is filled in the glass tube, the bottom of the glass tube passes through a foam board, and the foam board and the bottom of the glass tube and the absorbent cotton inside the glass tube contact the seawater in the seawater storage chamber.
8. The all-weather water extraction apparatus of claim 1, further comprising a radiation cooling condensate fresh water chamber disposed within the housing laterally of the fresh water storage chamber.
9. The all-weather water intake device according to claim 1, wherein a seawater storage chamber inlet solenoid valve is provided at a water inlet of the seawater storage chamber, and an ultrafiltration membrane is disposed in the seawater storage chamber inlet solenoid valve.
10. An all-weather water intake method using the all-weather water intake apparatus according to any one of claims 1 to 9, the method comprising:
in the daytime, under the action of sunlight, seawater is changed into water vapor from liquid seawater, and the water vapor is liquefied into water; the phase-change heat storage unit absorbs sunlight, and energy in the sunlight is stored in the phase-change heat storage material;
at night, when the temperature is lower than the phase change temperature of the phase change heat storage unit, the energy stored by the phase change heat storage material is quickly led out through the phase change heat storage unit, the seawater absorbs the led-out energy and is changed into water vapor from liquid seawater, the water vapor is liquefied into water, and meanwhile, the radiation refrigeration coating generates cold energy to condense the water vapor in the air on the surface of the coating, so that the water taking from the air is realized.
CN202210299714.1A 2022-03-21 2022-03-21 All-weather water taking device and water taking method Active CN114620793B (en)

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