CN103225330B - Method for getting water from air through phase change caused by light and using water for cultivation - Google Patents
Method for getting water from air through phase change caused by light and using water for cultivation Download PDFInfo
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- CN103225330B CN103225330B CN201310140916.2A CN201310140916A CN103225330B CN 103225330 B CN103225330 B CN 103225330B CN 201310140916 A CN201310140916 A CN 201310140916A CN 103225330 B CN103225330 B CN 103225330B
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Abstract
The invention relates to a method for getting water from air through phase change caused by light and using the water for cultivation. Mainly through irradiation of sunlight in the daytime, a material with a special structure is enabled to have hydrophilicity to absorb water in the air under the sunlight in the daytime; and at night without light, phase change is caused, the material is enabled to have hydrophobicity, the water is separated from the material and flows out to serve as drinking water for people or be used for plant cultivation.
Description
Technical field
Illumination phase transformation air water-intaking technical field for cultivating belongs to physical phase transition field and field of agricultural cultivation, mainly by sunlight on daytime, makes the material with special construction, when having illumination by day, there is hydrophily, absorb the water in air, when there is no illumination to evening, undergo phase transition, make material have hydrophobicity, water departs from material, makes current out, drink for people, or for plant culture.
Background technology
Tellurian fresh water content only accounts for 2.53% of global total Water, and wherein 68.7% belongs to solid glacier, and be distributed in the high mountain and polar regions that are difficult to utilize, part fresh water is buried in underground, is difficult to exploitation.At present, the fresh water that the mankind can directly utilize takes from underground water, lake fresh water and river bed water, and along with going from bad to worse of environment, these freshwater resources are just becoming more and more rare, especially in desert and Island.Earth surface has the desert area of 15% and the area, ocean of 70%, and wherein desert area population has 6.28 hundred million, and the population that on island and coastal area lacks fresh water is more.The conventional method solving the water supply problem in above-mentioned area comprises communications and transportation and desalinization two kinds of approach.Communications and transportation cost is higher, and desalinization is inapplicable to the area of salt solution rareness, and due to its technology and cost restriction, equipment large-scale, be not suitable for widely using.Therefore, people start to find other method acquisition freshwater resources.Be rich in fresh water in air, and do not limit by region, especially in island and coastal area, air humidity is higher, it is estimated, the steam containing about 14 000 km3 in air, and the fresh water total amount on earth's surface only has 1200 km3 [1].Up to the present, almost nil to the utilization rate of fresh water in air.In sum, air water-intaking technology contains the great potential solving fresh water scarcity problem, and allow the most effectual way of desert afforestation, plant can be made not need to irrigate plantation, and the method for present air water-intaking has following several: 1 dew condensation method, 2 separating and condensing methods, dew condensation method is exactly make the moisture in air condense out by pressurizeing or lowering the temperature, this method complex structure, inefficiency, is difficult to universal.Separating and condensing method is exactly by molecular sieve or silica gel and some composite materials, the adsorbent of some liquid also had, make Water Molecular Adsorption arrive above, then by solar energy or other energy, hydrone is evaporated, then steam is allowed to cool, obtain water, these are more a lot of than dew condensation method, but also there is complex structure, inefficiency, is difficult to universal.
Summary of the invention
Analyze 2 kinds of methods above, the general principle of dew condensation method allows air cooling-down arrive certain temperature, water will condense out, because moisture in atmosphere temperature height time concentration large, the scheme of the basic natural phenomena design that concentration is little when temperature is low, the general principle of separating and condensing method is that adsorbent absorbs large quantity of moisture in atmosphere, then by the method heated up, hydrone is allowed to absorb energy, depart from the absorption of adsorbent, then cooling becomes water, the technology of our invention, principle and titanium dioxide have identical character in fact, when there being illumination, hydrophily is larger, very little with regard to hydrophily when there is no illumination, our material is through the product of particular design and processing, Performance Ratio titanium dioxide is a lot of by force, it is characterized in that, the adsorbent material that we make is fetched water according to following methods, when there being illumination, material has hydrophily, moisture during simultaneous temperature height in air is also many, hydrone is connected on adsorbent by the effect of chemical bond, when there is no light irradiation, adsorbent material will become hydrophobicity, hydrone will depart from adsorbent, water just along flow of material out.If with the material of adsorbent as outside, make a basin, the earth inside basin and basin insulation open, the water got directly is stored in basin earth, then on this earth planting plants, this plant can will be watered never.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram of illumination phase transformation air water-intaking, and 1 represents sunshine, 2 adsorbents representing new material, and 3 represent the hydrophobic diversion passage of adsorbent, and 4 pores representing adsorbent, 5 represent delivery port, 6. represent the fixed mount of outside.
Specific implementation method
The material of novel research and development, make slices, then with one, outside framework to fixing, material is allowed to be shined upon as much as possible, daytime is under the irradiation of the sun, some molecular links inside adsorbent change, will from hydrophobic state slowly become hydrophilic state, the hydrone in air will be absorbed, when there is no sunlight to evening, some molecular links inside adsorbent will get back to original state, will from hydrophilic state slowly become hydrophobic state, hydrone will depart from from above, flow down along hydrophobic channel, then collected by delivery port, operation so repeatedly, ceaselessly water processed.If with the material of adsorbent as outside, make a basin, the earth inside basin and basin insulation open, the water got directly is stored in basin earth, then on this earth planting plants, this plant can will be watered never.
Claims (2)
1. an illumination phase transformation air water-intaking method for cultivating, it is characterized in that, adsorbent material is fetched water according to following methods, when there being illumination, material has hydrophily, and moisture during simultaneous temperature height in air is also many, and hydrone is connected on adsorbent by the effect of chemical bond, when there is no light irradiation, adsorbent material will become hydrophobicity, and hydrone will depart from adsorbent, and water just along flow of material out.
2. method according to claim 1, it for the method for cultivating be, using the material of adsorbent as outside, make a basin, earth inside basin and basin insulation are left, the water got directly is stored in basin earth, then on this earth planting plants, this plant can will be watered never.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310140916.2A CN103225330B (en) | 2013-04-23 | 2013-04-23 | Method for getting water from air through phase change caused by light and using water for cultivation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310140916.2A CN103225330B (en) | 2013-04-23 | 2013-04-23 | Method for getting water from air through phase change caused by light and using water for cultivation |
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| Publication Number | Publication Date |
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| CN103225330A CN103225330A (en) | 2013-07-31 |
| CN103225330B true CN103225330B (en) | 2015-01-28 |
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| CN201310140916.2A Expired - Fee Related CN103225330B (en) | 2013-04-23 | 2013-04-23 | Method for getting water from air through phase change caused by light and using water for cultivation |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106804319A (en) * | 2017-01-16 | 2017-06-09 | 杭州满庭芳生物科技有限公司 | Water guide material in flowerpot capable of storing water |
| TWI680288B (en) * | 2018-11-12 | 2019-12-21 | 國立交通大學 | A device for extracting water droplet from ambient air |
| DE102018222130A1 (en) * | 2018-12-18 | 2020-06-18 | Robert Bosch Gmbh | Irrigation device and method for watering plants |
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| CN101492153A (en) * | 2009-03-13 | 2009-07-29 | 北京化工大学 | Hydrotalcite-like film with reversible change-over photoresponse soakage capability and method of producing the same |
| CN202047555U (en) * | 2011-04-16 | 2011-11-23 | 江阴华泓建材工业有限公司 | Light catalyst self-cleaning artificial sandstone plate |
| CN202045937U (en) * | 2011-04-16 | 2011-11-23 | 江阴华泓建材工业有限公司 | Photocatalyst self-cleaning aluminum-plastic composite board |
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Effective date of registration: 20171123 Address after: 350300 one Fu Street, Fuqing City, Fuzhou, Fujian Province, No. 114 Patentee after: Fuqing science and technology innovation and Development Service Center Address before: 325100 Yongjia City, Wenzhou Province on the town of Zhongxing Village Center Road, No. 35 Patentee before: Hu Mingjian |
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Granted publication date: 20150128 Termination date: 20190423 |