CN116537312B - Atmospheric water intake system and working method based on spectral modulation - Google Patents
Atmospheric water intake system and working method based on spectral modulationInfo
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- CN116537312B CN116537312B CN202310528448.XA CN202310528448A CN116537312B CN 116537312 B CN116537312 B CN 116537312B CN 202310528448 A CN202310528448 A CN 202310528448A CN 116537312 B CN116537312 B CN 116537312B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/28—Methods or installations for obtaining or collecting drinking water or tap water from humid air
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7776—Vanadates; Chromates; Molybdates; Tungstates
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- Hydrology & Water Resources (AREA)
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- Water Supply & Treatment (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
An atmospheric water taking system based on spectrum modulation and a working method thereof, wherein the system consists of a wet water absorbing particle tower, a fresh water desorption chamber, a particle pump, a dry water absorbing particle storage chamber and a solar condenser; according to the invention, the solar spectrum is regulated to the near infrared band with good water radiation performance by utilizing the effect of particles on solar spectrum modulation, so that the atmospheric water taking process driven by solar energy is realized. The spectrum modulation particles with core-shell structures are adopted, and the automatic separation of the spectrum modulation particles and the water absorption particles is realized by utilizing magnetism. And different distribution densities of spectrum modulation particles on the conveyor belt are selected to correspond to different solar radiation, so that the desorption process of water is ensured.
Description
Technical Field
The invention relates to the technical field of atmospheric water taking, in particular to an atmospheric water taking system based on spectrum modulation and a working method.
Background
The earth has 70% area covered by water, but fresh water resources are extremely limited. Based on the data concerned, the total global water resource storage is approximately 1386000000 km 3, whereas fresh water resources account for only 3% of it. At present, fresh water resources which are easier to be utilized by human beings comprise river water, fresh water lake water and shallow groundwater, and the fresh water resources only account for 0.3 percent of the world fresh water resources and are equivalent to 0.007 percent of the total water storage capacity of the world. Atmospheric water is an important component of the water circulation of the biosphere and stores a large amount of water vapor. Under the irradiation of the sun, vapor evaporated from the sea surface is conveyed into the continent by the airflow, and along with the continuous elevation of the altitude, clouds are collected to form rain. Rainwater is gathered in the river and flows to the ocean again.
Atmospheric fresh water is a vast renewable reservoir with a content wide enough to meet the needs of every human. In the face of shortage of fresh water resources, water capture from the atmosphere has gained widespread attention. The existing atmospheric water taking technology has the defects of small water yield, long water production period and the like, and the use requirement is difficult to realize.
Disclosure of Invention
In consideration of the limitations of small water yield, long water production period and the like of the existing atmospheric water taking technology, the invention aims to provide an atmospheric water taking system based on spectrum modulation and a working method thereof, which are to utilize a solar spectrum modulation technology to realize the rapid evaporation and desorption process of water in water absorption particles and obtain fresh water which can be directly used.
In order to achieve the above purpose, the invention adopts the following technical scheme:
An atmospheric water taking system based on spectrum modulation comprises a wet water absorbing particle tower 1, a fresh water desorption chamber 2, a particle pump 3, a dry water absorbing particle storage chamber 4 and a solar condenser 5.
The wet water-absorbing particle tower 1 comprises a water-absorbing particle water-collecting platform, a wet water-absorbing particle storage chamber, a control valve and related pipelines, wherein the water-absorbing particle water-collecting platform is obliquely arranged at the upper part at an inclination angle of 30 degrees with the horizontal direction, the top of the water-absorbing particle water-collecting platform is connected with a dry particle outlet pipeline of the dry water-absorbing particle storage chamber 4, and the bottom of the water-absorbing particle water-collecting platform is provided with a particle inlet control valve;
The fresh water desorption chamber 2 is characterized in that a main body of the fresh water desorption chamber is a closed triangular prism which is horizontally arranged, two side surfaces are a light side wall surface and a backlight side wall surface, the bottom surface is a product recovery surface, and the inside is a desorption space; the side wall surface of the light-oriented side is a radiation heating surface and is divided into an upper part and a lower part, wherein the upper part is opaque to light and is provided with an interface connected with a wet particle outlet pipeline, and the lower part is made of a transparent material and is used as a solar energy receiving window; the product recovery surface is provided with two outlets, the surface close to the backlight side wall is a fresh water outlet and is connected with a water collecting tank, the bottom of the water collecting tank is provided with a fresh water outlet, the surface close to the light side wall is provided with a water absorbing particle recovery port, and the particle dropping side of the conveyor belt is provided with a particle inlet of a dry water absorbing particle storage chamber 4 through a pipeline with a particle conveying pump;
The particle inlet of the dry water-absorbing particle storage chamber 4 is connected with the water-absorbing particle recovery port of the fresh water desorption chamber 2 through a pipeline, and the water-absorbing particle outlet is connected with the water-absorbing particle water collecting platform of the wet water-absorbing particle tower 1 through a pipeline;
The solar condenser 5 directs the condensing projection direction to the solar receiving window of the fresh water desorption chamber 2.
An atmospheric water taking system and method based on spectrum modulation concretely comprises the following steps:
Step 1, taking water at night
The dry water-absorbing particle storage chamber 4 releases dry water-absorbing particles to the water-absorbing particle water-collecting platform of the wet water-absorbing particle tower 1, after water condensed by the water-absorbing particle water-collecting platform is absorbed, a particle inlet control valve is opened, and the wet water-absorbing particles are sent into the wet water-absorbing particle storage chamber for temporary storage;
Step 2, solar-driven fresh water evaporation
The particle outlet valve of the wet water-absorbing particle tower 1 is opened to release the wet water-absorbing particles to enter the fresh water desorption chamber 2, solar radiation is absorbed in the falling process of the wet water-absorbing particles, the temperature is increased, when the wet water-absorbing particles are close to the upper particle conveyor belt, the temperature is increased again, the water in the wet water-absorbing particles absorbs the near infrared heat radiation emitted by spectrum modulation particles and begins to evaporate to the environment, and leaves the water-absorbing particles;
Step 3, recovering the water absorbing particles
The dry water absorbing particles are conveyed by a lower layer particle conveyor belt to fall into a water absorbing particle recovery port and are returned to the dry water absorbing particle storage chamber 4 by the particle pump 3.
The surface radiation characteristic of the water-absorbing particle water collecting platform of the wet water-absorbing particle tower 1 is that the emissivity of a band facing the atmosphere window is more than 0.98, and the absorptivity of a band not facing the atmosphere window is less than 0.1.
The control valve of the wet water absorption particle tower 1 adopts time pulse to control the opening and closing state, so as to release the wet water absorption particles into the wet water absorption particle storage chamber.
The fresh water desorption chamber 2 adopts a glass material with the light transmittance of more than 0.95 towards the solar energy receiving window on the light side wall surface.
The surface of the backlight side wall surface of the fresh water desorption chamber 2 is coated with a radiation heat dissipation coating, the thickness range is 0.1 mm-0.5 mm, the heat radiation emissivity of the coating surface is more than 0.95, and the reflectivity is more than 0.9.
The bottom layer conveying chain of the particle conveying belt of the fresh water desorption chamber 2 adopts surface-coated oxidation-resistant iron. The upper surface of upper granule conveyer belt rotates to keeping away from the granule recovery mouth direction that absorbs water, and the upper surface of lower floor's granule conveyer belt rotates to being close to the granule recovery mouth direction that absorbs water, and lower floor's granule conveyer belt relies on magnetism to closely attract spectrum modulation granule to guarantee that it is hugged closely lower floor's granule conveyer belt all the time and is not dropped.
The spectrum modulation particles in the fresh water desorption chamber 2 are of a core-shell structure, the particle size is 0.1-1000 mu m, the distribution density is 0-1, the inner core is neodymium-iron-boron, the shell side is a nano coating with Dy 3+、Yb3+、Li8Bi2(MoO4)7 doping concentration of (0.01-0.1)%: 1, the spectrum modulation particles adjust the visible spectrum of solar energy to a near infrared band (900-1200 nm), and the radiation absorption performance of water in the band is good.
The water-absorbing particles in the fresh water desorption chamber 2 are prepared from water-absorbing resin, and the particle size range is 1-10mm.
Compared with the prior art, the invention has the following advantages:
According to the invention, the solar spectrum is regulated to the near infrared band with good water radiation performance by utilizing the effect of particles on solar spectrum modulation, so that the atmospheric water taking process driven by solar energy is realized. The spectrum modulation particles with core-shell structures are adopted, and the automatic separation of the spectrum modulation particles and the water absorption particles is realized by utilizing magnetism. And different distribution densities of spectrum modulation particles on the conveyor belt are selected to correspond to different solar radiation, so that the desorption process of water is ensured.
Drawings
FIG. 1 is a schematic diagram of an atmospheric water intake system based on spectral modulation according to the present invention.
Fig. 2 is a schematic of a spectrally modulated particle.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1, an atmospheric water intake system based on spectrum modulation is composed of a wet water absorbing particle tower 1, a fresh water desorption chamber 2, a particle pump 3, a dry water absorbing particle storage chamber 4 and a solar concentrator 5.
The wet water-absorbing particle tower 1 comprises a water-absorbing particle water-collecting platform, a wet water-absorbing particle storage chamber, a control valve and related pipelines, wherein the water-absorbing particle water-collecting platform is obliquely arranged at the upper part at an inclination angle of 30 degrees with the horizontal direction, the top of the water-absorbing particle water-collecting platform is connected with a dry particle outlet pipeline of the dry water-absorbing particle storage chamber 4, and the bottom of the water-absorbing particle water-collecting platform is provided with a particle inlet control valve;
The fresh water desorption chamber 2 is characterized in that a main body is a closed triangular prism body which is horizontally arranged, two side surfaces are a light side wall surface and a backlight side wall surface, the bottom surface is a product recovery surface, and the inside is a desorption space. The side wall surface of the light-oriented side is a radiation heating surface and is divided into an upper part and a lower part, wherein the upper part is opaque to light and is provided with an interface connected with a wet particle outlet pipeline, and the lower part is made of a transparent material and is used as a solar energy receiving window; the product recovery surface is provided with two outlets, the surface close to the backlight side wall is a fresh water outlet and is connected with a water collecting tank, the bottom of the water collecting tank is provided with a fresh water outlet, the surface close to the light side wall is provided with a water absorbing particle recovery port, and the particle dropping side of the conveyor belt is provided with a particle inlet of a dry water absorbing particle storage chamber 4 through a pipeline with a particle conveying pump;
The particle inlet of the dry water-absorbing particle storage chamber 4 is connected with the water-absorbing particle recovery port of the fresh water desorption chamber 2 through a pipeline, and the water-absorbing particle outlet is connected with the water-absorbing particle water collecting platform of the wet water-absorbing particle tower 1 through a pipeline;
The solar condenser 5 directs the condensing projection direction to the solar receiving window of the fresh water desorption chamber 2.
Implementation case:
As shown in fig. 1, the working method of the atmospheric water intake system based on spectrum modulation specifically comprises the following steps:
Step 1, taking water at night
The dry water-absorbing particle storage chamber 4 releases dry water-absorbing particles to the water-absorbing particle water-collecting platform of the wet water-absorbing particle tower 1, the temperature difference between the surface of the water-absorbing particle water-collecting platform and the environment is 10-15 ℃, after water condensed by the water-absorbing particle water-collecting platform is adsorbed, a particle inlet control valve is opened, the flow is 0.1kg/s, and the wet water-absorbing particles are sent into the wet water-absorbing particle storage chamber for temporary storage;
Step 2, solar-driven fresh water evaporation
The particle outlet valve of the wet water absorbing particle tower 1 is opened, the wet water absorbing particles enter the fresh water desorption chamber 2, solar radiation is absorbed in the falling process of the wet water absorbing particles, the temperature is increased to about 50 ℃, when the wet water absorbing particles are close to an upper particle conveyor belt, the temperature is increased to about 70 ℃ again by near infrared heat radiation (900-1200 nm) emitted by water absorption spectrum modulation particles (the distribution density is 0.3) in the wet water absorbing particles, the evaporation starts to the environment and leaves the water absorbing particles, the water absorbing particles fall onto the upper particle conveyor belt, the water absorbing particles continue to fall downwards through the process, the temperature is increased to 90 ℃ continuously, the water absorbing particles fall onto the lower particle conveyor belt, the desorption of fresh water is completed, the water absorbing particles are converted into dry water absorbing particles, the evaporated water vapor moves to the side wall surface of a backlight to meet condensation junction, and falls into the water collecting tank of the fresh water desorption chamber 2 along the wall surface;
Step 3, recovering the water absorbing particles
The dry water absorbing particles are conveyed by a lower layer particle conveyor belt to fall into a water absorbing particle recovery port and are returned to the dry water absorbing particle storage chamber 4 by the particle pump 3.
Claims (7)
1. The atmosphere water taking system based on spectrum modulation is characterized by comprising a wet water absorbing particle tower (1), a fresh water desorption chamber (2), a particle pump (3), a dry water absorbing particle storage chamber (4) and a solar concentrator (5);
The wet-state water-absorbing particle tower (1) comprises a water-absorbing particle water-collecting platform, a wet-state water-absorbing particle storage chamber, a control valve and related pipelines, wherein the water-absorbing particle water-collecting platform is obliquely arranged at the upper part at an inclination angle of 30 degrees with the horizontal direction, the top of the water-absorbing particle water-collecting platform is connected with a dry-state particle outlet pipeline of the dry-state water-absorbing particle storage chamber (4), the bottom of the water-absorbing particle water-collecting platform is provided with the particle inlet control valve, the wet-state water-absorbing particle storage chamber is positioned below the water-absorbing particle water-collecting platform and is closely connected with the water-absorbing particle water-collecting platform, and the bottom of the wet-state water-absorbing particle storage chamber is provided with the wet-state particle outlet pipeline and the wet-state particle valve;
The fresh water desorption chamber (2) is characterized in that a main body of the fresh water desorption chamber is a closed triangular prism which is horizontally arranged, two side surfaces are a light side wall surface and a backlight side wall surface, the bottom surface is a product recovery surface, and the inside is a desorption space; the device comprises a light side wall surface, a product recovery surface, a particle conveyor belt, a particle storage chamber (4) and a particle conveyor belt, wherein the light side wall surface is a radiation heating surface and is divided into an upper part and a lower part, the upper part is opaque to light and is provided with an interface which is connected with a wet particle outlet pipeline, and the lower part is made of transparent materials;
The particle inlet of the dry water-absorbing particle storage chamber (4) is connected with the water-absorbing particle recovery port of the fresh water desorption chamber (2) through a pipeline, and the water-absorbing particle outlet is connected with the water-absorbing particle water collection platform of the wet water-absorbing particle tower (1) through a pipeline;
The solar condenser (5) directs the condensing projection direction to a solar receiving window of the fresh water desorption chamber (2);
The upper surface of the upper layer particle conveyer belt rotates in the direction away from the water absorption particle recovery port, the upper surface of the lower layer particle conveyer belt rotates in the direction close to the water absorption particle recovery port, and the lower layer particle conveyer belt closely attracts spectrum modulation particles by magnetism so as to ensure that the particles are always clung to the lower layer particle conveyer belt and do not fall off;
The spectrum modulation particles in the fresh water desorption chamber (2) are of a core-shell structure, the particle size is 0.1-1000 mu m, the inner core is neodymium iron boron, the shell side is a nano coating with Dy 3+、Yb3+、Li8Bi2(MoO4)7 doping concentration of (0.01-0.1)% (0.005-0.03)% (1), the spectrum modulation particles adjust the visible spectrum of solar energy to 900-1200nm in the near infrared band, and the radiation absorption performance of the water in the band is good.
2. The atmospheric water intake system based on spectrum modulation of claim 1, wherein the surface radiation characteristic of the water-absorbing particle water collecting platform of the wet-state water-absorbing particle tower (1) is that the emissivity of the band facing the atmospheric window is more than 0.98, and the absorptivity of the band not facing the atmospheric window is less than 0.1.
3. The atmospheric water intake system based on spectrum modulation of claim 1, wherein the control valve of the wet water absorbing particle tower (1) adopts time pulse to control the opening and closing state, thereby releasing the wet water absorbing particles into the wet water absorbing particle storage chamber.
4. The atmospheric water intake system based on spectrum modulation according to claim 1, wherein the fresh water desorption chamber (2) adopts glass material with light transmittance of more than 0.95 towards the solar energy receiving window on the side wall surface of the light.
5. The atmospheric water intake system based on spectrum modulation of claim 1, wherein the surface of the backlight side wall of the fresh water desorption chamber (2) is coated with a radiation heat dissipation coating, the thickness range is 0.1 mm-0.5 mm, the thermal radiation emissivity of the coating surface is >0.95, and the reflectivity is > 0.9.
6. The atmospheric water intake system based on spectrum modulation according to claim 1, wherein the water absorption particles in the fresh water desorption chamber (2) are prepared from water absorption resin, and the particle size range is 1-10mm.
7. A method of operating an atmospheric water intake system based on spectral modulation as defined in any one of claims 1 to 6, comprising the steps of:
Step 1, taking water at night
The dry water-absorbing particle storage chamber (4) releases dry water-absorbing particles to a water-absorbing particle water-collecting platform of the wet water-absorbing particle tower (1), after water condensed by the water-absorbing particle water-collecting platform is absorbed, a particle inlet control valve is opened, and the wet water-absorbing particles are sent into the wet water-absorbing particle storage chamber for temporary storage;
Step 2, solar-driven fresh water evaporation
The particle outlet valve of the wet water absorption particle tower (1) is opened, the wet water absorption particles are released to enter the fresh water desorption chamber (2), solar radiation is absorbed in the falling process of the wet water absorption particles, the temperature is increased, when the wet water absorption particles are close to the upper particle conveyor belt, the temperature is increased again, the water absorption particles are evaporated to the environment and leave the water absorption particles, the water absorption particles fall onto the upper particle conveyor belt, are conveyed to continuously fall downwards and are subjected to the process again, the temperature is continuously increased, the water absorption particles fall onto the lower particle conveyor belt, the wet water absorption particles complete fresh water desorption and are converted into dry water absorption particles, the evaporated water vapor moves to the side wall surface of the backlight to meet condensation, and falls to the water collection tank of the fresh water desorption chamber (2) along the wall surface;
Step 3, recovering the water absorbing particles
The dry water-absorbing particles are conveyed by a lower layer particle conveyor belt to fall into a water-absorbing particle recovery port and are returned to a dry water-absorbing particle storage chamber (4) through a particle pump (3).
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| CN103895140A (en) * | 2012-12-26 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Device for manufacturing fluorescent powder film and method of manufacturing the fluorescent powder film by utilization of the device |
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| EP2969228A4 (en) * | 2013-03-15 | 2016-08-24 | Univ Case Western Reserve | SYSTEM AND METHOD FOR REMOVING METALS FROM A SOLUTION |
| WO2018118377A1 (en) * | 2016-12-20 | 2018-06-28 | Massachusetts Institute Of Technology | Sorption-based atmospheric water harvesting device |
| CN110499805A (en) * | 2019-08-25 | 2019-11-26 | 西北工业大学 | A device for taking fresh water from the sea |
| CN111675417B (en) * | 2020-05-11 | 2022-10-18 | 江苏净钻环保科技有限公司 | A magnetic adsorption-assisted photoelectric catalytic oxidation water treatment system and water treatment method |
| CN113718898B (en) * | 2021-10-13 | 2022-06-14 | 山东大学 | A portable device and working method for obtaining fresh water all-weather |
| CN115973998A (en) * | 2023-01-17 | 2023-04-18 | 西安交通大学 | Solar-driven photo-thermal seawater desalination coupling photocatalytic hydrogen production device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103895140A (en) * | 2012-12-26 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Device for manufacturing fluorescent powder film and method of manufacturing the fluorescent powder film by utilization of the device |
| CN103452164A (en) * | 2013-07-24 | 2013-12-18 | 杭州电子科技大学 | Novel automatic solar device for obtaining water from air |
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