CN101112169A - Irrigation system based on water transport quantity automatic control material - Google Patents
Irrigation system based on water transport quantity automatic control material Download PDFInfo
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- CN101112169A CN101112169A CNA2007100530597A CN200710053059A CN101112169A CN 101112169 A CN101112169 A CN 101112169A CN A2007100530597 A CNA2007100530597 A CN A2007100530597A CN 200710053059 A CN200710053059 A CN 200710053059A CN 101112169 A CN101112169 A CN 101112169A
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Abstract
The invention discloses an irrigation system based on delivery automatic-control material, which relates to an irrigation system. The invention adopts a pump (20) to lay out irrigation pipe network in the soil (10); the terminal of the irrigation pipe network is communicated with water source (40) by a valve (30). The structure of the pipe (20) is that the cross section from the inside to outside is provided with an inner pipe (23), a frame (21) and an outer pipe (22) in sequence; the frame (21) is composed of permeable or semipermeable pipe; the outer pipe (22) is an outer delivery automatic-control pipe; the inner pipe (23) is normal hollow pipe or a conveyance pipe made of strongly permeable material. The invention, water transmission property of which can change according to the water content of plant soil, so as to save irrigation water, provide more proper environment for plant growth and is applicable to irrigation fields which relates to elivery automatic-control, such as agriculture, gardens, forestry practice, etc.
Description
Technical field
The present invention relates to a kind of irrigation system, relate in particular to a kind of irrigation system based on water transport quantity automatic control material.
Background technology
Traditional irrigation method mainly contains: method such as flood irrigation, pouring, sprinkling irrigation, drip irrigation, slight irrigation, infiltrating irrigation, negative pressure irrigation and based on the synthetic automatic irrigation method of the automatic control technology of features such as soil suction, soil variation, biomorph.Subject matter is these methods when irrigating vegetation, has formed the soil layer of water surface or high saturation at soil surface, and under field conditions (factors), water surface and soil water evaporation amount are bigger, have wasted great amount of water resources; The automatic control technology cost based on soil suction, vegetation form, upgrowth situation in addition is higher, and water-saving result is not good.Traditional irrigation technique is in case manually reparation occurs damaging.Utilize in China water resource under the background of nervous, most of regional lack of water, need with low cost, water-saving result good, self-regeneration, the automatic control irrigation method that can utilize on a large scale.
In sum, the traditional irrigation method has following shortcoming:
1, traditional irrigation method is when irrigating vegetation, formed the soil layer of water surface or high saturation at soil surface, and under field conditions (factors), water surface and high saturated soil water evaporation quantity are bigger, have wasted great amount of water resources.
2, the easier irrigation of traditional irrigation method causes to infilter under the excessive moisture beyond the Vegetation Effect scope, and vegetation can't utilize, waste water resource.
Technologies such as 3, flood irrigation, sprinkling irrigation, drip irrigation, infiltrating irrigation can't also need artificial intervention or control system to realize irrigating operation according to the upgrowth situation control duty of vegetation.
4, adopt irrigation system based on the automatic control of Electronic Control and soil, vegetation information, water-saving result is better, but cost is very high.
How the conserve water resource, improve the efficient of irrigating? how to solve the irrigation problem according to the vegetation demand? the cheap technology that can utilize on a large scale is the major issue that water-saving irrigation method need solve.
Summary of the invention
Purpose of the present invention just is to overcome the above-mentioned shortcoming and defect that prior art exists, and the innovation prior art enlarges the scope of application, and a kind of irrigation system based on water transport quantity automatic control material is provided.This system is a kind of simple, effective water-saving irrigation system, and is a kind of system that can finish simultaneously with conventional irrigation system, need not maintenance, helps improving water resource utilization efficiency, helps providing the environment of vegetation growth preferably.
The object of the present invention is achieved like this:
Irrigation technique has become a kind of widely used vegetation cultivation, greening method; The various irrigation methods irrigation fields such as municipal administration, gardens, forestry, agricultural that have been widely used.At present, the fast development of technology such as sprinkling irrigation, drip irrigation, infiltrating irrigation is for the proposition of new irrigation method is laid a good foundation.
As Fig. 1, structure of the present invention is:
Adopt pipeline (20) to lay irrigation pipe network in soil (10), the terminal of irrigation pipe network is communicated with water source (40) by valve (30);
The structure of described pipeline (20) is: its cross section from inside to outside, is followed successively by interior pipe (23), skeleton (21) and outer tube (22);
Described skeleton (21) is made of permeable or semi-transparent water pipe material.
Described outer tube (22) is a kind of water transport quantity automatic control material outer tube;
Water transport quantity automatic control material can be realized the adjustment that the water yield is supplied with by proportioning, the thickness of adjusting automatic control material, and the scope of control soil moisture content adapts to the growth of vegetation.The osmotic coefficient of material is controlled at 1 * 10
-3Cm/s～1 * 10
-9In the cm/s scope, the hole average diameter of material is between 0.1 μ m～1000 μ m, and the material air-entry value is controlled in 10～180kPa scope, and the THICKNESS CONTROL of material is in 0.1cm～50cm scope.
Pipe (23) or be the common water-permeable pipe of hollow structure in described, diameter is 0.1cm～100cm, can be different shapes such as square, circular, trapezoidal; Or the water transport channel that forms by highly permeable material (as materials such as gravel, drain bar, water-release fibres).
Operation principle of the present invention:
In soil (10), imbed this irrigation pipe network, when soil (10) moisture content changes, the pore water pressure of soil (10) changes a lot, bring the great changes of the inside and outside differential water pressures of pipeline (20) thus, bring the variation of the several magnitude of pipeline (20) water delivery performance, pipeline (20) replenishes soil (10) moisture rapidly; When soil (10) moisture was relatively sufficient, the carrying capacity of pipeline (20) reduced even is not water delivery, like this pipeline (20) can guarantee automatically in the soil moisture within the specific limits.
The present invention mainly utilizes the unsaturation permeability principle of porous media material, utilizes the inside and outside pressure difference of pipeline (20) (pressure of managing in the outer soil is mainly negative pore water pressure), defines the main following method for simplifying of carrying capacity computational methods:
Q=-k (P
Outward-P
In)/h * A
The osmotic coefficient of k-water transport quantity automatic control material; Can have pore diameter to calculate or test directly records;
The middle footpath area of A-pipe unit length;
P
Outward-pipe outer soil pore water pressure (satisfy vegetation normal growth needs the optimum moisture content correspondence matric suction, the m of unit, the employing pressure head unit);
P
In-inner pipe water pressure power (approaching with 0, the m of unit, pressure head unit);
H-is the pipe outer wall thickness
Can obtain thus between pipeline (20) flow and pipe outer soil (10) water content relation as shown in Figure 2.When soil (10) moisture content changes outside pipe, the pore water pressure of soil changes very greatly, cause the carrying capacity of water pipe to change the variation to reach several magnitude, can reach moisture content in the control soil thus by the porous media material character of tube wall in certain scope.
The present invention has following advantage and good effect:
1. material water delivery characteristic changes with the moisture content condition of vegetation soil, and during antecedent soil moisture, material water delivery performance strengthens, as shown in Figure 4; During the soil humidity, material water delivery performance reduces, as shown in Figure 5.Thereby realize the automatic control that vegetation is irrigated; The moisture that can guarantee to manage in the outer soil remains in the moisture content scope that is fit to plant growing;
2. pipeline (20) is embedded in below the face of land, reduces the water evaporates on soil (10) surface and oozes invalid irrigation loss down, has saved irrigation water;
3. the present invention uses material water delivery characteristic to change with outer soil (10) aqueous conditions of pipe, thereby realizes the automatic control of discharge, and the moisture content of control soil (10) is in the scope that is fit to vegetation growth.Need not extra monitoring and automatic control equipment, controlled vegetation root system surrounding soil moisture provides the environment of vegetation growth preferably within the specific limits.
4. because pipeline (20) has the self-regeneration characteristic, adaptability is strong, can bear certain local pressure and local deformation, can not rupture, even fracture can guarantee that still water can not leak, thereby reduce the probability of pipeline (20) deuterogenesis's fault greatly and reduce maintenance cost, this irrigation system is put things right once and for all.
The present invention is fit to agricultural, gardens, forestry etc. and relates to the output irrigation field of control automatically.
Description of drawings
Fig. 1 is a structure chart of the present invention;
Fig. 2 is the structure chart of pipeline (20);
Fig. 3 is that the interior moisture quantity delivered of pipeline (20) is with the soil moisture content change curve.
Fig. 4 be in the pipeline (20) during a drought moisture carry the situation schematic diagram;
Fig. 5 is that moisture is carried the situation schematic diagram during pipeline (20) inherent rainy season.
Wherein:
The 10-soil layer:
The 20-pipeline, a kind of water transport quantity automatic control material pipeline;
The 21-skeleton is made of permeable or semi-transparent water pipe material;
The 22-outer tube is a kind of water transport quantity automatic control material outer tube;
Pipe in the 23-;
The 30-valve;
The 40-water source.
The X-soil moisture content; Y-moisture quantity delivered; The F-change curve.
Embodiment
The present invention is further described below in conjunction with drawings and Examples:
1, about irrigation pipe network
Adopt pipeline (20) to lay irrigation pipe network in soil (10), the laying of irrigation pipe network is decided according to the situation of vegetation, can be varied, and for example Fig. 1 has provided a kind of laying situation of irrigation pipe network.
2, about pipeline (20)
Pipeline (20) is relatively stricter to the requirement of water transport quantity automatic control material, the permeability of strict control of material and thickness.
Water transport quantity automatic control material mainly contains following several types:
1) clay material, percentage by weight are 60%～99%, and the soil particle average particle size range is 1 μ～1000 mu m ranges, and soil particle is by the soil particle pipe of geotextiles or other diablement fort parcel or binding agent bonding formation thickness 0.05cm～10cm;
The percentage by weight of reinforcement material such as geotextiles, ramie cotton fabric is 1%～40%;
The percentage by weight of binding agent is 0.01%～10% scope;
Osmotic coefficient is controlled at 10
-3Cm/s～10
-9Between the cm/s scope, material permeability coefficient is with 10
-4Cm/s～10
-6Cm/s is an optimum range.
2) clay is fired pipe, for example: earthenware, clay brick pipe (manufacture craft is with the tile unanimity, and difference is to control the hole average diameter), control valve hole average diameter is 1 μ～1000 mu m ranges, pipe thickness is 1mm～100mm scope, keeps certain water penetration; Permeability is 10
-3Cm/s～10
-9Between the cm/s.
3) pipe of cement, raw material are cement and powder fine sand, and the hole average diameter of control water pipe tube wall is 1 μ～1000 mu m ranges, and pipe thickness is 0.05cm～10cm scope, and the permeability of control water pipe is 10
-3Cm/s～10
-9Between the cm/s.
4) permeable expanded rubber pipe, the permeability of control expanded rubber is 10
-3Cm/s～10
-9Cm/s, rubber tube wall thickness are 0.05cm～10cm scope.
Above material proportions, and can form tough and tensile and with the porous pipeline of certain flexibility, osmotic coefficient is 10
-3Cm/s～10
-9Between the cm/s, water delivery is also irrigated the zone that needs irrigation.
The connected mode of pipeline can connect technologies such as gummed, heat seal as rubber belt sealing, rubber with reference to existing pipeline connecting method.
The pipe thickness of above irrigation pipe, material permeability coefficient, diameter are selected to carry out with reference to formula 1.Q on average need to select irrigation volume design.
Claims (2)
1. irrigation system based on water transport quantity automatic control material is characterized in that:
Adopt pipeline (20) to lay irrigation pipe network in soil (10), the terminal of irrigation pipe network is communicated with water source (40) by valve (30);
The structure of described pipeline (20) is: its cross section from inside to outside, is followed successively by interior pipe (23), skeleton (21) and outer tube (22);
Described skeleton (21) is made of permeable or semi-transparent water pipe material;
Described outer tube (22) is a kind of water transport quantity automatic control material outer tube;
Pipe (23) or be the common water-supply-pipe of hollow structure in described; Or the water transport channel that forms for the highly permeable material.
2. by the described irrigation system of claim 1, it is characterized in that water transport quantity automatic control material:
Osmotic coefficient is controlled at 1 * 10
-3Cm/s～1 * 10
-9In the cm/s scope, the hole average diameter of material is controlled between 0.1 μ m～1000 μ m, and the material air-entry value is controlled in 10～180kPa scope, and the THICKNESS CONTROL of material is in 0.1cm～50cm scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100530597A CN101112169A (en) | 2007-08-28 | 2007-08-28 | Irrigation system based on water transport quantity automatic control material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100530597A CN101112169A (en) | 2007-08-28 | 2007-08-28 | Irrigation system based on water transport quantity automatic control material |
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| Publication Number | Publication Date |
|---|---|
| CN101112169A true CN101112169A (en) | 2008-01-30 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102415313A (en) * | 2010-09-28 | 2012-04-18 | 柯荣辉 | Omnibearing method and device for feeding water to plants |
| CN101331845B (en) * | 2008-08-01 | 2013-05-22 | 上海润旺园艺科技有限公司 | Anti-blocking automatic filtration irrigation method |
| CN111328669A (en) * | 2020-03-06 | 2020-06-26 | 宁夏大学 | Cotton-flax infiltrating irrigation pipeline and processing method thereof |
| CN111587716A (en) * | 2019-02-20 | 2020-08-28 | 吕正雄 | Automatic soil humidity control system and application thereof in underground irrigation, space farms, desert field building and the like |
| CN113229115A (en) * | 2021-06-08 | 2021-08-10 | 东珠生态环保股份有限公司 | Pipe irrigation type drought prevention system and working method thereof |
-
2007
- 2007-08-28 CN CNA2007100530597A patent/CN101112169A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101331845B (en) * | 2008-08-01 | 2013-05-22 | 上海润旺园艺科技有限公司 | Anti-blocking automatic filtration irrigation method |
| CN102415313A (en) * | 2010-09-28 | 2012-04-18 | 柯荣辉 | Omnibearing method and device for feeding water to plants |
| CN111587716A (en) * | 2019-02-20 | 2020-08-28 | 吕正雄 | Automatic soil humidity control system and application thereof in underground irrigation, space farms, desert field building and the like |
| CN111328669A (en) * | 2020-03-06 | 2020-06-26 | 宁夏大学 | Cotton-flax infiltrating irrigation pipeline and processing method thereof |
| CN111328669B (en) * | 2020-03-06 | 2021-09-28 | 宁夏多源鑫科技有限公司 | Cotton-flax infiltrating irrigation pipeline and processing method thereof |
| CN113229115A (en) * | 2021-06-08 | 2021-08-10 | 东珠生态环保股份有限公司 | Pipe irrigation type drought prevention system and working method thereof |
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Open date: 20080130 |