CN201813703U - Protected agriculture film rainwater-collecting gravitational trickle irrigation - Google Patents
Protected agriculture film rainwater-collecting gravitational trickle irrigation Download PDFInfo
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- CN201813703U CN201813703U CN2010202168589U CN201020216858U CN201813703U CN 201813703 U CN201813703 U CN 201813703U CN 2010202168589 U CN2010202168589 U CN 2010202168589U CN 201020216858 U CN201020216858 U CN 201020216858U CN 201813703 U CN201813703 U CN 201813703U
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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
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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
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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Abstract
The utility model relates to a protected agriculture film rainwater-collecting gravitational trickle irrigation, which belongs to the technical field of agricultural water saving. In order to reduce the exploitation of ground water, guarantee water supply for protected agriculture, reduce the investment on conventional collected rainwater utilization and promote agricultural water saving and the increase of the income of peasants, the system comprises a collected rainwater-filtering unit, a stored water-pumping unit and a gravitational trickle irrigation unit, wherein the collected rainwater-filtering unit comprises a collecting channel connected with a protected agriculture film and a sedimentation basin connected with the collecting channel; the stored water-pumping unit comprises a collected rainwater vault connected with the sedimentation basin and an immersible pump arranged on the bottom of the collected rainwater vault; and the gravitational trickle irrigation unit comprises a gravitational water reservoir connected with the immersible pump and a trickle irrigation pipeline connected with the gravitational water reservoir. The implementation of the technical scheme can avoid the capital investment on the construction of a collecting field, moreover, the rainwater-collecting efficiency is high, and the utility model has the functions of rainwater storage, water temperature regulation, water quality purification, trickle irrigation and fertilization, and can achieve the targets of high-efficient rainwater utilization and ground water exploitation reduction.
Description
Technical Field
The utility model belongs to the technical field of the agricultural water conservation, concretely relates to facility agriculture face collection rain gravity drip irrigation system.
Background
The existing rainwater collection, storage and utilization mainly refers to a miniature water conservancy project for building a rainwater collection field, a rainwater collection cellar, a reservoir and a matched water-saving irrigation facility, and the project relieves the drought conditions of part of arid and semi-arid regions to a certain extent and ensures the stable and high yield of crops. There are some disadvantages, however: firstly, an artificial rain collecting field is built, so that the investment of the project is increased, and the economic benefit of the project is influenced; secondly, the rainwater utilization project is unreasonable in matching, and the water production efficiency cannot be improved.
The existing rain collecting field construction technology comprises a tile house collecting surface, a concrete collecting surface, a soil mass collecting surface, a sheet (block) stone lining collecting surface and a plastic film seepage-proofing collecting surface, the permeability coefficient of the collecting surface is reduced through various manual measures, the collecting efficiency of the collecting surface is improved, and the purpose of efficiently collecting rainwater is achieved. However, the existing rain collecting field construction has the following defects: first, the current collection efficiency is not high. According to the current collecting efficiency test of 'rainwater collection and storage utilization technology and practice' published by the Chinese water conservancy and hydropower publishing company in 2001 on current collecting surfaces of different materials in Gansu, Ningxia and other places, the annual current collecting efficiency of the concrete material with the highest current collecting efficiency is only 0.73-0.80; secondly, the construction of a rain collecting field occupies the cultivated land area. In the construction of a field collecting field, cultivated land is required to be used as a collecting surface, so that the effective cultivation area is reduced.
The rain collecting cellar project in the prior art comprises a cellar, a dry well, a reservoir, a waterlogging pond, a pond dam and the like, wherein the cellar and the reservoir are applied more frequently. Due to different geological conditions and different easiness in obtaining building materials, the design specifications of the water cellar and the water storage tank are many, including a cuboid type, a spherical type, a cylindrical type and the like. The water cellar and the reservoir are mostly in a closed structure, so that the evaporation loss of water is reduced as much as possible, and various anti-seepage measures are adopted to reduce the leakage loss of water. However, the design of the existing rain collecting cellar has the major defects: the regulation and storage functions of the rain collecting cellar in dry and wet seasons are not fully considered, the requirement of irrigation water cannot be met if the volume of the rain collecting cellar is too small, and investment is wasted if the volume of the rain collecting cellar is too large.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The to-be-solved technical problem of the utility model is to avoid building the fund input problem that rain collecting place brought, solve rain cellar for storing things and build too big or undersize problem, improve and drip irrigation quality of water, realize the high-efficient utilization of rainwater and reduce the target of groundwater exploitation.
(II) technical scheme
In order to solve the technical problem, the utility model provides a facility agriculture film surface rain-collecting gravity drip irrigation system, which comprises a rain-collecting filter device, a water-storing and water-lifting device and a gravity drip irrigation device, wherein,
the rain collecting and filtering device comprises a collecting tank connected with the agricultural film surface of the facility and a sedimentation tank connected with the collecting tank;
the water storage and water lifting device comprises a rain collecting cellar connected with the sedimentation tank and a submersible pump arranged at the bottom of the rain collecting cellar;
the gravity drip irrigation device comprises a gravity reservoir connected with the submersible pump and a drip irrigation pipeline connected with the gravity reservoir.
And a grid is arranged at the joint of the water collecting groove and the water inlet of the sedimentation tank.
The system also comprises a first connecting pipe which is connected between the water outlet of the sedimentation tank and the water inlet of the rain collecting cellar.
The first connecting pipe is provided with a detachable filter screen.
The system also includes a second connecting tube connected between the submersible pump and the water inlet of the gravity reservoir.
The drip irrigation pipeline comprises a water distribution branch pipe connected with a water outlet of the gravity reservoir and a drip irrigation pipe connected with the water distribution branch pipe.
The water distribution branch pipe is a PE pipe with the pipe wall having elasticity phi 50.
The membrane surface and the gravity reservoir are arranged on the ground, and the bottom of the gravity reservoir is positioned at a position more than 1m above the ground;
the water collecting groove, the sedimentation tank and the rainwater collecting cellar are arranged under the ground, and the submersible pump is used for pumping stored water into the gravity reservoir from the rainwater collecting cellar.
An overflow port and an inspection well are arranged in the rain collecting cellar.
(III) advantageous effects
Contrast prior art, the utility model discloses technical scheme possesses following advantage:
(1) the facility agricultural film surface is used as a rain collecting surface, so that the capital investment for constructing a collecting field is avoided, the rain collecting efficiency is high, and the effective runoff can be formed by rainfall over 3 mm;
(2) the rainwater collecting, precipitating and filtering device is arranged, so that the effects of filtering rainwater and purifying water quality are achieved;
(3) the rain collecting cellar and the gravity reservoir play roles in regulating and storing rainwater, adjusting water temperature, purifying water quality and dissolving fertilizer for drip irrigation and fertilization;
(4) the crop water and nutrient are supplied for a small amount of times through the gravity reservoir and the drip irrigation pipeline, the crop yield and quality can be improved, and the aims of efficiently utilizing rainwater and reducing underground water exploitation are fulfilled.
Drawings
Fig. 1 is a schematic structural diagram of a system provided in the technical solution of the present invention;
FIG. 2 is a schematic cross-sectional view of a collecting tank according to an embodiment of the present invention;
fig. 3 is a schematic longitudinal section view of a collecting tank in the technical solution of the present invention;
fig. 4 is a schematic view of the average monthly rainfall in beijing area for many years provided in the embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a standard sunlight greenhouse in Beijing area according to an embodiment of the present invention;
FIG. 6 is a schematic view of typical monthly water consumption of planting crops in Beijing area according to an embodiment of the present invention;
fig. 7 is a schematic diagram of the simulation calculation for calculating the reasonable volume of the water collecting cellar in the embodiment of the present invention.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following description will make a detailed description of embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The present embodiment specifically describes the structural features of the facility agriculture membrane rain-collecting gravity drip irrigation system provided by the technical solution of the present invention.
As shown in fig. 1, the system comprises a rain collecting and filtering device, a water storing and lifting device and a gravity drip irrigation device; wherein,
the rain collecting and filtering device comprises a collecting tank 2 connected with a facility agricultural film surface 1 and a sedimentation tank 4 connected with the collecting tank;
the water storage and water lifting device comprises a rain collecting cellar 6 connected with the sedimentation tank 4 and a submersible pump 7 arranged at the bottom of the rain collecting cellar 6;
the gravity drip irrigation device comprises a gravity reservoir 9 connected with the submersible pump 7 and a drip irrigation pipeline connected with the gravity reservoir 9.
A grille 3 is arranged at the joint of the tail end of the rainwater collecting groove 2 and the water inlet of the sedimentation tank 4, and the grille 3 is used for intercepting large sundries in rainwater;
The system also comprises a first connecting pipe 5, and the water outlet of the sedimentation tank 4 is connected with the water inlet of the rain collecting cellar 6 through the first connecting pipe 5.
The first connecting pipe 5 is provided with a detachable filter screen.
The system further comprises a second connecting tube 8;
the gravity reservoir 9 is provided with a water inlet and a water outlet;
the submersible pump 7 is connected with a water inlet of the gravity reservoir 9 through a water outlet of the rain collecting cellar 6 and a second connecting pipe 8;
the drip irrigation pipeline comprises a water distribution branch pipe 10 connected with a water outlet of the gravity reservoir 9 and a drip irrigation pipe 11 connected with the water distribution branch pipe 10;
the gravity water reservoir 9 is connected with the water distribution branch pipe 10 through a DN40 steel pipe and a phi 50PVC pipe, a valve and a net filter are arranged on the PVC pipe, the valve is used for controlling the opening and closing of a water outlet of the gravity water reservoir 9 and a drip irrigation pipeline, and the net filter is used for filtering drip irrigation water;
the water distribution branch pipe 10 is a PE pipe with elastic phi 50 pipe wall;
the drip irrigation pipe 11 is vertically connected with the water distribution branch pipe through a bypass;
the facility agricultural film surface 1 and the gravity reservoir 9 are arranged on the ground, the bottom of the gravity reservoir 9 is positioned above the ground, and the distance from the ground is at least 1 m;
the water collecting groove 2, the grating 3, the sedimentation tank 4 and the rain collecting cellar 6 are arranged under the ground, and the submersible pump 7 is used for pumping the stored water into the gravity reservoir 9 from the rain collecting cellar 6;
the facility agriculture film surface 1 is a PE film with the thickness of 0.1mm or 0.12 mm;
an overflow port and an inspection well are arranged in the rain collecting cellar 6.
The following describes in detail the case where the technical solution of the present embodiment is used in a greenhouse environment, taking a greenhouse planting environment as an example, where the greenhouse has a length of 50m and a width of 8 m.
In a greenhouse environment, the technical scheme of the embodiment is that facility agriculture membrane surface flow collection, rain collecting cellar water storage, gravity drip irrigation and water and fertilizer integration are integrated, rainwater is collected by the facility agriculture membrane surface 1, or fine ground surface water flow is collected, the collected water passes through a flow collection groove 2 and a grid 3, is precipitated by a precipitation tank 4 and filtered by a filter screen of a first connecting pipe 5, flows into a rain collecting cellar 6 for accumulation and storage, stored water is pumped into a gravity reservoir 9 from the rain collecting cellar 6 through a second connecting pipe 8 by a submersible pump 7, and after a valve is opened, water is filtered by a net filter under the action of gravity and then flows automatically through a water distribution branch pipe 10 and a drip irrigation pipe 11 for gravity drip irrigation. When fertilizer is needed to be applied, self-made drip irrigation fertilizer or special drip irrigation fertilizer is selected and dissolved in the gravity reservoir 9 for drip irrigation and fertilization, namely, water and fertilizer integration.
As shown in fig. 2 and fig. 3, fig. 2 is a schematic cross-sectional view of the collecting tank, and fig. 3 is a schematic longitudinal-sectional view of the collecting tank; the water collecting groove can be made of bricks or concrete and cast into a gutter which has the same length with the longitudinal direction of the greenhouse and a certain slope (the height difference is 2 per mill) and is 50m long. The end of the collecting tank close to the sedimentation tank is low, and the other end is high. When the collecting groove is built, the width of the collecting groove is 24cm and the depth of the collecting groove is 15cm at the beginning according to the length of the greenhouse, the collecting groove is gradually deepened along with the closer distance to the sedimentation tank, and the width of the collecting groove at the inlet of the sedimentation tank is 24cm and the depth of the collecting groove is 24 cm. One side of the collecting groove, which is connected with the agricultural film surface of the facility, has a certain gradient, which is beneficial to the collection of the rainwater runoff.
Wherein, the grid 3 is an iron screen with the aperture of 5cm multiplied by 5 cm.
The sedimentation tank 4 is a small water tank with the length of 1m, the width of 40cm and the depth of 50cm, the water inlet is an open channel with the length of 24cm multiplied by 24cm, the water outlet is a cement pipe with the diameter of 30cm and is positioned at the tail end of the water collecting tank 2, the tail end of the water collecting tank 2 is connected with the water inlet of the sedimentation tank 4 through a grating 3, and the sedimentation tank 4 is connected with a rainwater collecting cellar 6 through a first connecting pipe 5. The first connecting pipe 5 is provided with a filter screen which is a plum blossom-shaped hole iron trash rack with the aperture of 3cm, and the first connecting pipe 5 and the water outlet of the sedimentation tank 4 are the same as a cement pipe with the diameter of 30cm and the length of 1 m. The bottom of the water outlet of the sedimentation tank 4 is 2-3 cm higher than the bottom of the water inlet, and the function of purifying and filtering rainwater is achieved.
The rain collecting cellar 6 is constructed in a region below the ground water level of 3m and is constructed between 0.5m and 3.0m underground, the rain collecting cellar 6 is a brick-laid and concrete-poured square cellar, the volume is designed and determined according to local rainfall conditions, rain collecting surface area, rainwater collecting rate, crop water consumption and other data, the water storage capacity of the rain collecting cellar 6 basically meets the annual drip irrigation water demand of greenhouse crops, and the standard of constructing zero-use underground water is basically realized. The rain collecting cellar 6 has an anti-seepage function, and in order to prevent the rain collecting cellar 6 from being frozen and cracked in winter, a soil layer of 50cm is covered above the rain collecting cellar 6, and vegetables or lawns can be planted on the rain collecting cellar.
Wherein the submersible pump 7 is QDX3-20-0.55 with flow rate of 3m3The delivery lift is 20m, and the matched power is 0.55 kW.
Wherein the gravity reservoir 9 has a volume of 2-3 m3The rectangular closed water pool (or water storage bucket) is characterized in that the distance between the bottom of the pool and the ground is more than 1m, the length of the container is 2m, the width of the container is 1-1.5 m, the height of the container is 1m, a water inlet is a DN40 steel pipe, a water outlet is a DN40 steel pipe, the container is connected with a water distribution branch pipe (phi 50PE pipe) through a phi 50PVC pipe, a valve and a net type filter are arranged on the PVC pipe, a gravity water storage pool is built inside a greenhouse, high-degree self-flow water supply can be utilized to the maximum extent, and the effects of purifying rainwater. The gravity water reservoir 9 can be made of bricks, cast iron or plastic containers, the water storage capacity is required to meet the water quantity required by primary drip irrigation of the greenhouse, and a gate valve and a mesh filter are arranged at the position where the water outlet is connected with the water distribution branch pipe 10 and used for opening and closing the water outlet and preventing impurities or sediments from blocking a dripper.
Wherein, the second connecting pipe 8 connected with the rain collecting cellar 6 and the gravity reservoir 9 is DN40 steel pipe or other available pipes.
The drip irrigation mode adopted by the gravity drip irrigation device is a new drip irrigation technology for conveying rainwater to soil at the roots of crops through the water distribution branch pipes 10 and the drip irrigation pipes 11 by utilizing pressure generated by the fall between the water surface of the gravity reservoir 9 and the ground. The drip irrigation pipe 11 can be laid under the mulching film of the agricultural land, and does not need power during drip irrigation.
The device provided by the technical scheme can effectively collect rainfall on the surface of the facility agricultural film into the rain collecting cellar and intercept dead branches and leaves carried by the rainwater, and the rainwater is uniformly and stably conveyed to crops through the drip irrigation pipe under the condition of small water pressure (gravity). The system can relieve the contradiction of uneven water supply and demand in greenhouse vegetable production, and can be used for fertilizing vegetables. The rain collecting area of the device system is 0.6 mu, the drip irrigation area is 0.6 mu, and the rainwater accumulated by the device system can basically meet the drip irrigation water demand of planting 'winter spring stubble tomatoes + autumn winter stubble cucumbers' which consume most water all the year around in the greenhouse.
Taking a standard greenhouse (east-west length is 50m, north-south span is 8m) and a typical stubble (winter-spring stubble tomato + autumn-winter stubble cucumber) as examples, as shown in fig. 4, according to the average monthly rainfall condition of many years in the Beijing area, the dynamic relation between membrane surface rain collection water storage and gravity drip irrigation water demand is analyzed to determine the reasonable volume of the rain collecting cellar.
(1) Film surface rain-collecting water storage capacity
Greenhouse area 400m2(0.6 mu in total), the surface of the facility agricultural film is a PE agricultural film with the length of 50m and the width of 9m, and the thickness can be 0.1mm or 0.12 mm. According to the average rainfall of Beijing area for many years, the theoretical water collection amount is calculated to be 442mm according to the rainwater collection rate of 66-85 percent and the average 75.5 percent.
(2) Water requirement for gravity drip irrigation
As shown in FIG. 5, taking the crops (winter-spring tomato-autumn-winter cucumber) with the highest annual water consumption in the sunlight greenhouse in Beijing as an example, the growth period and water consumption are shown in Table 1, the annual monthly water consumption is shown in FIG. 6, and the annual cumulative water consumption is 439.5 mm.
TABLE 1 Water consumption in sunlight greenhouse in winter and spring stubble tomato-autumn and winter stubble cucumber annual planting mode
(3) Reasonable volume of rain collecting cellar
As shown in fig. 7, according toDrip irrigation water demand (shown in table 1) and rain collecting surface area (400 m) for greenhouse vegetable planting2) The runoff coefficient (0.95) and the monthly rainfall data (shown in figure 4) of 1985 to 2008 in Beijing area are utilized to simulate and calculate the water inflow (rainwater runoff), the water yield (drip irrigation water consumption) and the overflow quantity of the rain collecting cellar month by the formulas (1) and (2), and the simulation result is shown in a table 2.
In the formula, YtFor taking water (m) from rain collecting cellar3)，StRepresents the quantity of rainwater collecting cellar water (m) at t3)，QtThe amount of water (m) flowing into the rain collecting cellar at t3)，DtThe quantity of water (m) flowing out of the rain collecting cellar at t3) And V represents the effective volume (m) of the rain collecting cellar3)。
TABLE 2 rain collecting efficiency and substitute groundwater ratio simulation results under different rain collecting cellar volumes
When the corresponding rain collecting cellar volume of the standard greenhouse is 90m3In the above, the aim of producing zero-use groundwater (the substitute groundwater proportion is nearly 90%) for greenhouse vegetables in the present example can be basically achieved. But when the volume of the rain collecting cellar is more than 110m3In time, the volume of the rain collecting cellar is continuously increased, and the contribution to the rainwater collection amount is small. 50m is generally adopted in production3Or 70m3The rain collecting cellar replaces the underground water by 70 percent or 80 percent, and has better comprehensive benefit.
To sum up, contrast prior art, the utility model discloses technical scheme possesses following advantage:
(1) the facility agricultural film surface is used as a rain collecting surface, so that the capital investment for constructing a collecting field is avoided, the rain collecting efficiency is high, and the effective runoff can be formed by rainfall over 3 mm;
(2) the rainwater collecting, precipitating and filtering device is arranged, so that the effects of filtering rainwater and purifying water quality are achieved;
(3) the rain collecting cellar and the gravity reservoir play roles in regulating and storing rainwater, adjusting water temperature, purifying water quality and dissolving fertilizer for drip irrigation and fertilization;
(4) the crop water and nutrient are supplied for a small amount of times through the gravity reservoir and the drip irrigation pipeline, the crop yield and quality can be improved, and the aims of efficiently utilizing rainwater and reducing underground water exploitation are fulfilled.
(5) The rain collecting cellar is scientifically and reasonably designed according to local weather conditions, the area of a current collecting surface, current collecting efficiency, a drip irrigation system and the like, and the problems of overlarge scale and undersize of the rain collecting cellar are avoided.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (9)
1. A facility agriculture film surface rain-collecting gravity drip irrigation system is characterized in that the system comprises a rain-collecting filter device, a water storage and lifting device and a gravity drip irrigation device, wherein,
the rain collecting and filtering device comprises a collecting tank connected with the agricultural film surface of the facility and a sedimentation tank connected with the collecting tank;
the water storage and water lifting device comprises a rain collecting cellar connected with the sedimentation tank and a submersible pump arranged at the bottom of the rain collecting cellar;
the gravity drip irrigation device comprises a gravity reservoir connected with the submersible pump and a drip irrigation pipeline connected with the gravity reservoir.
2. The facility agricultural film rain collecting gravity drip irrigation system of claim 1, wherein a grid is provided at a junction of the flow collecting tank and the water inlet of the sedimentation tank.
3. The facility agricultural film rain-collecting gravity drip irrigation system of claim 1, further comprising a first connection pipe connected between the water outlet of the sedimentation tank and the water inlet of the rain collecting cellar.
4. The facility agricultural film rain collecting gravity drip irrigation system of claim 3, wherein the first connecting tube is provided with a detachable filter screen.
5. The facility agricultural film rain-collecting gravity drip irrigation system of claim 1, further comprising a second connecting tube connected between the submersible pump and the water inlet of the gravity reservoir.
6. The facility agricultural film rain-collecting gravity drip irrigation system of claim 1, wherein the drip irrigation line comprises a branch water distribution pipe connected to an outlet of the gravity reservoir and a drip irrigation pipe connected to the branch water distribution pipe.
7. The facility agriculture film rain-collecting gravity drip irrigation system of claim 6, wherein the water distribution branch is a phi 50PE pipe having a flexible pipe wall.
8. The facility agricultural film rain-collecting gravity drip irrigation system of claim 1, wherein the film and the gravity reservoir are disposed on a ground surface, and a bottom of the gravity reservoir is located at a position 1m above the ground surface;
the water collecting groove, the sedimentation tank and the rainwater collecting cellar are arranged under the ground, and the submersible pump is used for pumping stored water into the gravity reservoir from the rainwater collecting cellar.
9. The facility agriculture film rain collection gravity drip irrigation system of claim 1, wherein an overflow port and an inspection well are provided inside the rain collection cellar.
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| CN2010202168589U CN201813703U (en) | 2010-05-26 | 2010-05-26 | Protected agriculture film rainwater-collecting gravitational trickle irrigation |
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| CN104813870A (en) * | 2015-05-19 | 2015-08-05 | 窦观一 | Ecological agriculture system that fully utilizes wind, light and gas energy sources |
| CN106284491A (en) * | 2015-06-10 | 2017-01-04 | 西北农林科技大学 | A kind of design of shed rainwater-collecting mode |
| CN106358846A (en) * | 2016-10-31 | 2017-02-01 | 沈阳农业大学 | Comprehensive rainwater utilization system for ecological greenhouse |
| CN107820899A (en) * | 2017-10-10 | 2018-03-23 | 邱逸奎 | A kind of double-deck canopy of rain-proof |
| CN112031169A (en) * | 2020-08-05 | 2020-12-04 | 上海建工集团股份有限公司 | Assembled box type house with rainwater collecting function |
| CN112930978A (en) * | 2021-03-17 | 2021-06-11 | 塔里木大学 | Gravity circulation hot water greenhouse environment-friendly heat supply system |
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2010
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102362574A (en) * | 2011-11-10 | 2012-02-29 | 汪跃宏 | Natural water resource microcirculation irrigation system |
| CN102362574B (en) * | 2011-11-10 | 2013-06-12 | 汪跃宏 | Natural water resource microcirculation irrigation system |
| CN104813870A (en) * | 2015-05-19 | 2015-08-05 | 窦观一 | Ecological agriculture system that fully utilizes wind, light and gas energy sources |
| CN106284491A (en) * | 2015-06-10 | 2017-01-04 | 西北农林科技大学 | A kind of design of shed rainwater-collecting mode |
| CN106358846A (en) * | 2016-10-31 | 2017-02-01 | 沈阳农业大学 | Comprehensive rainwater utilization system for ecological greenhouse |
| CN107820899A (en) * | 2017-10-10 | 2018-03-23 | 邱逸奎 | A kind of double-deck canopy of rain-proof |
| CN112031169A (en) * | 2020-08-05 | 2020-12-04 | 上海建工集团股份有限公司 | Assembled box type house with rainwater collecting function |
| CN112930978A (en) * | 2021-03-17 | 2021-06-11 | 塔里木大学 | Gravity circulation hot water greenhouse environment-friendly heat supply system |
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