CN114892759B - Desert shallow water storage technology utilizing pot cover effect - Google Patents
Desert shallow water storage technology utilizing pot cover effect Download PDFInfo
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- CN114892759B CN114892759B CN202210176977.3A CN202210176977A CN114892759B CN 114892759 B CN114892759 B CN 114892759B CN 202210176977 A CN202210176977 A CN 202210176977A CN 114892759 B CN114892759 B CN 114892759B
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- water
- metal plate
- desert
- pot cover
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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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- 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
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
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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
- Y02A20/108—Rainwater harvesting
Abstract
The pot cover effect of the soil body refers to the phenomenon that moisture in the deep soil body migrates from a high-temperature underground region to a low-temperature ground surface region in the form of water vapor and condenses into water or sublimates into ice under a waterproof covering layer, so that the moisture is accumulated under the covering layer. The invention provides a desert shallow water storage technology utilizing a pot cover effect, and belongs to the technical field of unsaturated soil in geotechnical engineering. The invention lays a layer of metal plate on the desert surface as a gas-tight and water-tight covering layer, which is similar to a pot cover. The metal plate is provided with a rainwater port for collecting atmospheric precipitation, and a breathable and waterproof geotextile and a non-breathable and waterproof metal plate are laid at a position about 50cm below the surface layer of the desert, and the metal plate is connected with the water tank through a water pipe. By utilizing the characteristic of large day-night temperature difference in northwest desert areas, water generated by the pot cover effect and external rainwater are finally collected into the water tank and stored for later use, and ecological environment-friendly targets such as desert green plant irrigation, wind prevention and sand fixation are achieved.
Description
Technical Field
The invention relates to a desert shallow water storage technology utilizing a pot cover effect, which can collect condensed or desublimated water of the pot cover effect under a metal plate and can also collect atmospheric precipitation to store the water for later use, and belongs to the technical field of unsaturated soil in geotechnical engineering.
Background
The climate characteristics of the northwest desert area of China are large day and night temperature difference, drought and little rain, and the underground water level is deep. The inventor proposes that the water is collected by utilizing the pot cover effect principle, and the aim of providing water for the living production and the survival and the growth of animals and plants of people is fulfilled.
The Chinese patent of application No. 201510455311.1 is based on the pot cover effect principle, and prevents and treats frost heaving and disaster caused by the road surface of the pot cover effect by arranging the air barrier layer, but does not collect water by utilizing the pot cover effect principle, thereby providing service for production and life of people.
Disclosure of Invention
The invention utilizes the principle of pot cover effect to automatically collect water in arid desert areas.
The technical scheme adopted by the invention is as follows: a water storage technology for desert shallow layer by using pot cover effect features that the water generated by condensation and desublimation is obtained by using "pot cover effect". The invention realizes the automatic collection function of pot cover effect condensation (desublimation) water and atmospheric precipitation by arranging the metal plate, the air-permeable and water-impermeable geotextile and the water tank, and is characterized in that: the surface metal plate is provided with a rainwater inlet; the air-permeable and water-impermeable geotextile is lapped with the metal plate by 6cm; the metal plate lapped with the geotextile is longitudinally provided with a 2% gradient, and a water collecting pipe is arranged at the center of the lowest point; water is collected into the water tank through the water collecting pipe, and automatic collection and storage of water are achieved.
The advantages and the beneficial effects of the invention are as follows:
1. the invention can collect the water generated by the pot cover effect and the external rainwater for later use.
2. The pot cover effect is applied to production practice, and ecological and economic benefits are generated.
Drawings
Fig. 1 is a schematic cross-sectional view illustrating a desert shallow water storage technology utilizing a pot cover effect according to an embodiment of the present application.
Fig. 2 isbase:Sub>A schematic cross-sectional viewbase:Sub>A-base:Sub>A ofbase:Sub>A desert shallow water storage technology usingbase:Sub>A pot cover effect according to an embodiment of the present application.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
a desert shallow water storage technology utilizing a pot cover effect comprises the following steps: and paving a metal plate with a rainwater port on the surface of the sandy soil, and paving a breathable and waterproof geotextile and a breathable and waterproof metal plate 50cm below the surface of the sandy soil. The moisture in the deep layer of the sandy soil is upwards transferred in the form of water vapor under the action of temperature gradient, and is condensed into water or is sublimated into ice on the lower surface of the metal plate, and the condensed water (or the water melted by the sublimated ice) finally flows into the water tank through the geotextile and the metal plate. Rainwater can also be collected into the water tank through a rainwater port on the metal plate.
The operation method comprises the following steps:
a. selecting sandy soil with the length and the width of 3m and the height of 1.2m as a unit, digging out the position of a water tank according to figures 1 and 2, arranging the water tank at the position with the depth of 1.1m, and longitudinally centering the water tank. As shown in figure 1, the diameter of the vertical water pipe of the connecting water tank is 3cm, the length of the vertical water pipe is 7.9cm, sand and soil are continuously backfilled, a transverse water pipe is arranged, the diameter of the transverse water pipe is 3cm, the length of the transverse water pipe is 213.6cm, three vertical water pipes are arranged according to a schematic diagram, the diameter of each vertical water pipe is 2cm, the length of each vertical water pipe is 7cm, and a filter screen is arranged at the uppermost end of each water pipe to prevent sand from entering the water pipes.
b. And backfilling sandy soil to a depth of 50cm, and paving a metal plate connected with the vertical water pipe according to the size shown in the figure, wherein the section of the metal plate is trapezoidal, the upper width of the metal plate is 51cm, the lower width of the metal plate is 20cm, and the height of the metal plate is 12cm. And sand is backfilled between the adjacent metal plates to form an arch, the chord length is 49cm, the arch-forming height is 4.8cm, air-permeable and water-impermeable geotextile is laid on the surface of the sand, and the lap joint length of the geotextile and the metal plates is 6cm.
c. According to the size shown in the figure, the sandy soil is backfilled to the depth with the elevation of 0, a metal plate is laid on the surface of the sandy soil, the shape of the metal plate is composed of an arc part and a trapezoid part, the size of the trapezoid part is the same as that of the section of the metal plate b, the arching height of the arc part is 3cm, and the chord length is 49cm.
d. A gully is arranged at the center of the bottom edge of the trapezoidal area of the metal plate, as shown in figure 1, the diameter of an opening of the gully is 3cm, and the longitudinal clear distance is 7cm.
e. The construction steps of the above one unit can be referred to, and the desert surface can be freely expanded.
Claims (2)
1. A water storage method for a shallow desert layer by utilizing a pot cover effect, which obtains condensed water and desublimated water through the pot cover effect, realizes the automatic water collection function of the shallow desert layer by arranging a metal plate which is air-tight and water-tight on the surface of sandy soil and a geotextile which is air-tight and water-tight and is air-tight and water-tight at a position which is about 50cm below the surface of the sandy soil, and is characterized in that: the main part of the water collection comprises a metal plate, a breathable impervious layer, a rainwater port and a water tank, wherein the metal plate is laid on the surface of the sandy soil, the rainwater port is arranged on the metal plate to collect rainwater, and simultaneously, water vapor migrating in the deep layer of the sandy soil is condensed or desublimated on the lower surface of the metal plate to realize the water collection function; laying air-permeable and water-impermeable geotextile and a metal plate 50cm below sandy soil, and lapping the air-permeable and water-impermeable geotextile and the metal plate by 6cm; the metal plate lapped with the geotextile is longitudinally provided with a 2% gradient, and a water collecting pipe is arranged at the center of the lowest point; water is collected into the water tank through the water collecting pipe, and water vapor migration and water collection are achieved.
2. The method of claim 1, wherein: the facility is arranged in the desert area, the automatic collection and storage of water are realized by utilizing the climate and soil property characteristics of the desert area, the facility is used for storing water in a shallow desert layer, atmospheric rainfall is collected to the position of a rainwater port through a metal plate and seeps down through the rainwater port and finally flows into a water tank, the diameter of the rainwater port is 3cm, and the net distance is 7cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210176977.3A CN114892759B (en) | 2022-02-25 | 2022-02-25 | Desert shallow water storage technology utilizing pot cover effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210176977.3A CN114892759B (en) | 2022-02-25 | 2022-02-25 | Desert shallow water storage technology utilizing pot cover effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114892759A CN114892759A (en) | 2022-08-12 |
| CN114892759B true CN114892759B (en) | 2023-03-21 |
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| CN202210176977.3A Active CN114892759B (en) | 2022-02-25 | 2022-02-25 | Desert shallow water storage technology utilizing pot cover effect |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110169289A (en) * | 2019-06-21 | 2019-08-27 | 四川大学 | A kind of greenhouse condensation vapor irrigation system based on radiation refrigeration principle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002966B (en) * | 2010-10-26 | 2011-12-28 | 敦煌研究院 | Device for getting water in water-retention well |
| CN105088911B (en) * | 2015-07-29 | 2017-06-30 | 北京航空航天大学 | One kind preventing and treating " pot cover effect " causes the new road based structures of disaster |
| CN107842057A (en) * | 2016-09-19 | 2018-03-27 | 陈瑞文 | Make water system in desert |
| JP2020065526A (en) * | 2018-10-26 | 2020-04-30 | 恵吉 栗山 | Tool for naturally recovering water in soil (trade name: master of makeup water) |
| CN109610562B (en) * | 2018-12-19 | 2020-09-22 | 北京航空航天大学 | Method for collecting water generated by pot cover effect |
| CN111364304A (en) * | 2020-03-10 | 2020-07-03 | 广东省交通规划设计研究院股份有限公司 | Roadbed structure suitable for water vapor migration prevention and control |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110169289A (en) * | 2019-06-21 | 2019-08-27 | 四川大学 | A kind of greenhouse condensation vapor irrigation system based on radiation refrigeration principle |
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