CN105900794A - Negative-pressure drip irrigation device and negative-pressure drip irrigation method for same - Google Patents
Negative-pressure drip irrigation device and negative-pressure drip irrigation method for same Download PDFInfo
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- CN105900794A CN105900794A CN201610225755.0A CN201610225755A CN105900794A CN 105900794 A CN105900794 A CN 105900794A CN 201610225755 A CN201610225755 A CN 201610225755A CN 105900794 A CN105900794 A CN 105900794A
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- Prior art keywords
- positive
- negative
- water
- drip irrigation
- negative pressure
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
Abstract
The invention relates to a negative-pressure drip irrigation device and a negative-pressure drip irrigation method for the same. The device and the method belong to the technical field of drip irrigation. The negative-pressure drip irrigation device comprises a water source container and a positive-negative pressure tube, wherein a positive-negative pressure water feeder disposed on one end of the positive-negative pressure tube is vertically inserted downwards into soil of a crop root zone; the other end of the positive-negative pressure tube is connected to a water outlet of the water source container; the lowest water position of the water source container is lower than or equal to the positive-negative pressure water feeder which is embedded in the soil of the crop root zone; water or nutrient solutions are injected into the water source container; a water inlet of an inner bucket is closed after the container is full, the water in clearance between two buckets very quickly flows into the positive-negative pressure tube, and positive-pressure drip irrigation can be started; and when the water surface in the clearance of the two buckets descends to be flush with or lower than the positive-negative water feeder embedded in the soil of crop root zone, a positive pressure disappears, and negative-pressure drip irrigation can be started. The device and the method provided by the invention have the advantages that the structure is simple; use is convenient; consumption of water and energy can be reduced; applications are flexible; the cost is low; and generalization is easy, etc.
Description
The present invention relates to a kind of negative pressure drip irrigation appliance and negative pressure drip irrigation method thereof, belong to water-saving irrigation technique field, be particularly suited for dripping
Fill.
Background technology
Drip irrigation and negative pressure sub-irrigation are all the irrigation techniques that current field irrigation is economized on water most.Although drip irrigation and negative pressure sub-irrigation are all
Having plurality of advantages, but due to impurity, the impact of the precipitation of mineral, the capillary tube of drip irrigation pipe can be made to block, therefore irrigation water needs
Filter, and water quality also be there are certain requirements.Feed feeder many employings potter's clay material of negative pressure sub-irrigation, aperture is the most small, as
Fruit processes bad filtration problem, the most easily blocks, and causes systemic breakdown, and the cost of investment that drip irrigation and negative pressure underground fill
The highest, it is applicable to the crop that economic value added is higher more, popularizes and acquire a certain degree of difficulty.
Summary of the invention
The problem existed for above-mentioned prior art, the invention provides a kind of negative pressure drip irrigation appliance and negative pressure drip irrigation method thereof, it
Can allow soil suction that the water of below ground is automatically extracted into more than ground, more in drops drip and be seeped in the soil of crop root zone,
Reach depletion to irrigate.
For realizing above-mentioned target, the technical solution used in the present invention be utilize positive and negative pressure pipe to realize negative pressure drip irrigation, its irrigation rig
Including water source container and positive and negative pressure pipe.
Realize negative pressure relegate a high offi fill critical component be positive and negative pressure pipe.Positive and negative pressure pipe is ined succession by above a positive/negative-pressure feed feeder and it
A piece small hose composition.Positive/negative-pressure feed feeder is to be made up of two hard transparent plastic pipes that thickness is different, thickness two bore
Great disparity is big, and its size the most strictly limits, and extra heavy pipe is the most desirable, long 5-10 centimetre, internal diameter 1-3 centimetre, wall thickness 1 millimeter,
Extra heavy pipe one end open, the protruding convex mouth of the other end, convex mouth has a tubule, internal diameter is typically at 2-3 millimeter, wall thickness 1 milli
Rice, the length that tubule exposes in extra heavy pipe is less than 1 centimetre, and the mouth of pipe that this tubule exposes in extra heavy pipe is exactly positive/negative-pressure feed feeder
Water inlet, tubule exposes a bit of in extra heavy pipe, it is therefore an objective to can be clearly visible the speed that the globule drips during irrigation, the tubule mouth of pipe is normal
The globule in outstanding hexagram, also can prevent the air in positive/negative-pressure feed feeder from entering in flexible pipe, and small hose is the water inlet pipe of positive/negative-pressure feed feeder.
The using method of positive and negative pressure pipe: one end of positive and negative pressure pipe is positive/negative-pressure feed feeder, positive/negative-pressure feed feeder wants that Open Side Down vertically
It is inserted in the soil of crop root zone, after inserting in soil, positive/negative-pressure feed feeder will necessarily enter a soil Cylinder, this
Garden post is unsuitable long, long drips too slow, and too short easy gas leakage, soil property is different, and Len req is the most different, general desirable 4-6
Centimetre, it is air above soil column, after being plugged and presses gently.Positive/negative-pressure feed feeder can also be loaded onto in advance capillary tube or with
Soil approximates bibulous thing, then by the soil of positive/negative-pressure feed feeder embedment crop root zone.Flexible pipe in positive and negative pressure pipe can lead to
Cross water-supply-pipe or be directly connected to water source container side wall in the water outlet joint of bottom.First make the water level at water source higher than irrigating Horizon
Face carries out malleation drip irrigation, more slowly smoothly make the water source water surface drop to equal with positive/negative-pressure feed feeder or following time, drip irrigation still can
Proceeding, negative pressure drip irrigation begins to, the fine water that can observe directly in the water source container being in below positive/negative-pressure feed feeder of eye
Or nutritional solution, can flow the most from bottom to top along the flexible pipe of positive and negative pressure pipe, until it reaches more than ground, more in drops lead to
Cross positive/negative-pressure feed feeder to drip and be seeped in soil.Negative pressure drip irrigation, the height between the water surface and positive/negative-pressure feed feeder is carried out by positive and negative pressure pipe
Degree difference can reach more than 60 centimetres (positive/negative-pressure feed feeder is point on the basis of the water inlet of its upper end), but is not every pipe
Being attained by, difference in height is the biggest more easily leaks gas every time, in irrigating reality, in order to insure therebetween, and positive/negative-pressure feed feeder and water source
The difference in height of the water surface is unsuitable excessive, so the lowest water level of water source container is typically equal with the positive/negative-pressure feed feeder in soil root district
Or it is following less than 30 centimetres.
Described water source container by inner barrel and outer barrel two shape is identical and Plastic Drum that thickness is different forms, bucket can garden, outer barrel
Opening upwards, sidewall can have one or more outwardly outlet convex mouth near bottom, and these outlet convex mouthes are the most all
Seal with rubber cap.Interior bucket is a bucket thinner than outer barrel, and interior bucket bung tips upside down in outer barrel down, has one between two barrels
The interval that bar is the narrowest.Having three to four supporting legs on the bung of interior bucket, interior bucket jack-up, supporting leg stands on the drum head of outer barrel,
The interior bucket bung height away from outer barrel drum head, must be on the outlet of outer barrel sidewall, below interior bucket bung, and outer two barrels
Communicate.The using method of water source container is: first opens the water inlet of interior bucket upper end, then injects water or nutritional solution in bucket,
Owing to two bottoms of the barrel interconnect, water can flow to the interval between interior bucket and two barrels simultaneously, is closed by the water inlet of interior bucket after stream is full.
Due to bucket can not air inlet, the water in interior bucket would not flow out, only two barrels interval in water can flow out, two barrels interval in
Water level is exactly the water level at water source.Water in two barrels of intervals, the water level high water yield is few, and it is mainly used in the malleation drip irrigation before negative pressure drip irrigation,
And substantial amounts of water is only when the underwater in two barrels of intervals drops to below interior bucket bung in thin bucket, the water in interior bucket just can flow out,
It is mainly used in negative pressure drip irrigation.Time below the bung that underwater drops to interior bucket, air will enter from the space between the water surface and bung
Enter interior bucket, the water in interior bucket flow out to two barrels interval in, make the water level in interval raise, water has been blocked again in the rising of water level
Face and the space of bung, only use water retention, and outlet ceaselessly water outlet, water level can be re-lowered to again below interior bucket bung, empty
Gas can enter again interior bucket, and water flows out from interior bucket again, the water of outflow make again two barrels interval in water level raise, again block the water surface with
Space between bung, stops water outlet again, and the most repeatedly, the water surface can be always held at the position equal with interior bucket bung, this
The water surface is exactly the minimum water surface of this water source container.The laying method of water source container is, during malleation drip irrigation, and the minimum water of water source container
Position is higher than and is embedded in positive/negative-pressure feed feeder in the soil of crop root zone, the lowest water level that negative pressure is relegated a high offi when filling in water source container will equal to or
Less than the positive/negative-pressure feed feeder being embedded in the soil of crop root zone, the peak level of water source container is higher than and is embedded in the soil of crop root zone
Positive/negative-pressure feed feeder.Positive/negative-pressure feed feeder is on the basis of the mouth of a river of relegating a high offi of its upper end.
Accompanying drawing explanation
Fig. 1 is the structural representation of the negative pressure drip irrigation appliance of the present invention
Fig. 2 is the structural representation of positive and negative pressure pipe
Fig. 3 is barrel structure schematic diagram
Fig. 4 is water source container appearances schematic diagram
1. water source in figure, 2. outlet, 3. the water source water surface, 4. in barrel bung, 5. outer barrel, 6. barrel, 7.
Bucket water inlet, 8. water inlet capping, 9. water source container, 10. interior barrel supporting leg, 11. irrigation waters, 12. water inlets
Flexible pipe, 13. positive/negative-pressure feed feeder water inlets, 14. irrigated land planes, 15. positive/negative-pressure feed feeders, 16. soil shout, and 17.
Soil Cylinder.18. positive and negative pressure pipes.
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in implementing the present invention carries out Chu being fully described by.
Fig. 1 is embodiment accompanying drawing
Both can be with malleation drip irrigation by positive and negative pressure pipe, it is also possible to negative pressure drip irrigation, negative pressure drip irrigation to be implemented, it is necessary to first open from malleation drip irrigation
Begin, then forwarded to negative pressure drip irrigation by malleation drip irrigation.
Enforcement step:
1. insert positive and negative pressure pipe.By the positive/negative-pressure feed feeder 15 in positive and negative pressure pipe, Open Side Down is inserted vertically into crop root zone soil 16
In, after insertion, positive/negative-pressure feed feeder can enter a soil Cylinder 17, this Cylinder is unsuitable long, long drips too
Slowly, too short easy gas leakage, soil property is different, and Len req is the most different, general desirable 4-6 centimetre, is air above soil column,
Press lightly on after being plugged.Positive/negative-pressure feed feeder 15 can also be loaded onto capillary tube in advance or other approximate bibulous east with soil
West, will press in the soil of positive/negative-pressure feed feeder embedment crop root zone gently.
2. place water source container 9 and connect positive and negative pressure pipe 18.A water source container part will be in irrigated land plane less than 14, a part
In irrigated land plane more than 14.The minimum water surface 3 of water source container is the water surface equal with interior bucket bung in inside and outside two barrels of intervals.Water
The minimum water surface 3 of source container should be less than or equal with the water inlet 13 of the positive/negative-pressure feed feeder being embedded in the soil of crop root zone, water source
The highest water surface (concordant with outer barrel bung) of container should be higher than that irrigated land plane.After water source container is put well, soft positive and negative pressure pipe
Pipe 12 is connected on the outlet 2 of water source container 9 sidewall.
3. pour water, malleation drip irrigation be changed into negative pressure drip irrigation.First open the water inlet 7 of water source container inner-barrel 6 upper end, then to
Water or nutritional solution is injected, owing to inside and outside two bottoms of the barrel communicate, so water can fill between bucket and two barrels simultaneously in interior bucket
Interval.After water source container fills, the water surface in two barrels of intervals exceeds irrigated land plane 14, and water can automatically flow into positive and negative pressure pipe,
Air in positive and negative pressure pipe is discharged from soil 16 by positive/negative-pressure feed feeder 15, and malleation drip irrigation begins to.Malleation drip irrigation one
Starting, soil garden post 17 body in positive/negative-pressure feed feeder 15 is rapidly reached saturated, and be in contact with it outside positive/negative-pressure feed feeder 15
The soil 16 at place is in Fei Bao and state, under soil suction effect, makes the water in positive/negative-pressure feed feeder can automatically penetrate into week
Enclose in soil 16, thus in positive/negative-pressure feed feeder 15, form negative pressure, in other words, while malleation drip irrigation, negative pressure
And produce, so-called malleation drip irrigation, the substantially simultaneous drip irrigation of positive/negative-pressure.But after negative pressure Bi Jing results from malleation,
So negative pressure drip irrigation to be implemented, it is necessary to from the beginning of malleation drip irrigation, malleation drip irrigation it is changed into negative pressure drip irrigation again.Now due to interior bucket
The water inlet 7 at top is closed, and interior bucket 6 can not enter air, within water in bucket 6 would not flow out, the most only two barrels
Water in interval can flow out, and the water surface in two barrels of intervals is exactly the water source water surface 3.The carrying out of drip irrigation, water source vessels apart
In the water surface be that the carrying out of drip irrigation declines equably, when the water source water surface drops to bung less than 4 of interior bucket, air will
Bucket 6 in the space between the water surface and bung 4 enters, in the interval flowed out between two barrels of the water in interior bucket 6, makes interval
In water level raise, water level raises and has blocked again the space between the water surface and bung, uses water retention only, owing to outlet ceaselessly goes out
Water, when water level is re-lowered to interior bucket bung less than 4, air can enter again interior bucket, and water flows out from interior bucket 6 again, outflow
Water makes again the water level in two barrels of intervals raise, and again blocks the space between the water surface and bucket bung, again stops water outlet, so
Repeatedly, the water surface is always held at, near the position equal with interior bucket bung, no longer rising, the most no longer declining, and this water surface is just
Being the minimum water surface of water source container, this water surface is exactly less than or equal to the positive/negative-pressure feed feeder being embedded in the soil of crop root zone
Water inlet 13, this designs when placing water source container, and now malleation is censured mistake, and negative pressure exists, and drip irrigation continues to carry out,
Water or nutritional solution in water source container are pressed into the transparent hose of positive and negative pressure pipe by atmospheric pressure, flow from bottom to top along juice transparent hose,
Until on arrival ground, more in drops instill in positive/negative-pressure feed feeder 15, supplement in positive/negative-pressure feed feeder 15 and flow into
The moisture of soil, thus ensure that whole system is constantly running.Owing to there is multiple water outlet joint 2 container side wall bottom, water source,
So a water source container can be irrigated the most a piece of, it is also possible to a water source container, use flexibly, particularly suitable flowers,
The irrigation of the plants such as vegetable planting box and western pawl, Fructus Lycopersici esculenti, trees.If the water at water source being guided at a distance with water-supply-pipe, just
Negative tube is connected on water-supply-pipe, it is also possible to carry out the irrigation of larger area.Can water-fertilizer integral, if at the positive/negative-pressure of this device
Soil is loaded onto, it is also possible to irrigate for sand desert in feed feeder.
Beneficial effects of the present invention:
The feature that the present invention is the most prominent is: knot Chinese holly is simple, easy and simple to handle, save water and energy, with low cost, use flexibly, it is easy to
Promote.Moisture can be directly sent to crop root zone, reach Precision Irrigation, be become watering crop from irrigating the fields, reach depletion and irrigate,
Need not power, do not destroy Soil structure, do not evaporate, not leakage, it is also possible to water-fertilizer integral.Can be widely used for balcony planting,
Room item plantation, courtyard greening, western pawl and various vegetables Lay and trees are irrigated, it is also possible to irrigate in order to sand desert, for arid and half-dried
Nonirrigated farmland district is particularly suitable.The present invention is by reducing farm investment cost, alleviating water resources crisis, the yield improving agricultural product and matter
Amount, improve the ecological environment and the life of people all can play certain facilitation.
Claims (8)
1. a negative pressure drip irrigation appliance, including water source container and positive and negative pressure pipe, it is characterised in that described water source container is by interior bucket
With outer barrel two shape is identical and Plastic Drum that thickness is different composition, bucket can garden, outer barrel opening upwards, near bottom on sidewall
Can have one or more outwardly outlet convex mouth, interior bucket is a bucket thinner than outer barrel, and interior bucket bung tips upside down in outer barrel down, two
Having between Tong on a bung being spaced in interior bucket the narrowest and have three to four supporting legs, interior bucket jack-up, supporting leg stands on the drum head of interior bucket, interior
The bucket bung height away from outer barrel drum head, on the outlet of outer barrel sidewall, has a water inlet in interior bucket upper end, and water inlet has sealing lid.
A kind of negative pressure drip irrigation appliance the most according to claim 1, it is characterised in that described positive and negative pressure pipe is positive and negative by one
The small hose that pressure feed feeder is ined succession above with it is constituted, and positive/negative-pressure feed feeder is that two hard transparent plastic pipes that mountain thickness is different are constituted, thickness
Two bore great disparities are big, extra heavy pipe one end open, and the protruding convex mouth in one end has a tubule in convex mouth, tubule exposes no more than one li in extra heavy pipe
Rice, exposes outside 1-2 centimetre at extra heavy pipe.
3. a negative pressure drip irrigation method, it is characterised in that include water source, positive and negative pressure pipe, the water surface at water source used less than or be embedded in crop root zone
Positive/negative-pressure feed feeder in soil is equal, and the difference in height between the water source water surface and positive/negative-pressure feed feeder is 0-60 centimetre, and irrigation water is along positive and negative pressure pipe
Flexible pipe flows the most from bottom to top, until it reaches more than ground, then instills underground from positive/negative-pressure feed feeder little by little.
A kind of negative pressure drip irrigation method the most according to claim 3, it is characterised in that the positive/negative-pressure feedwater of positive and negative pressure pipe one end
Device wants that Open Side Down is inserted vertically in the soil of crop root zone, the other end by water-supply-pipe or directly with the connection of water source container bottom,
Positive/negative-pressure feed feeder enters after insertion a soil Cylinder, it is also possible to load onto in advance in positive/negative-pressure feed feeder capillary tube or other
Approximate bibulous thing with soil, positive/negative-pressure feed feeder is embedded in the soil of crop root zone, during drip irrigation above soil Cylinder
There is a shoaling layer.
5. the rolling a kind of negative pressure drip irrigation method described in claim 3, it is characterised in that by water source, positive and negative pressure pipe, soil
Composition irrigation system is a closed system, has air in positive/negative-pressure feed feeder.
A kind of negative pressure drip irrigation method the most according to claim 3, is characterized in that, implement negative pressure drip irrigation, must drip from malleation
Filling starts, malleation drip irrigation be reconverted into negative pressure drip irrigation, and method is malleation drip irrigation when carrying out, and makes source water plane slow and uniform
Ground declines, until dropping to equal or following with the positive/negative-pressure feed feeder in the soil of crop root zone.
7. want a kind of negative pressure drip irrigation method described in 3 according to right, it is characterised in that the laying method of water source container, water source
A part for container is below irrigated land plane, and a part, more than irrigated land plane, just should be placed in the soil of crop root zone
In-between, the highest water surface in water source container is higher than positive/negative-pressure feed feeder, the lowest water level of water source container to negative pressure water supply device
Should be less than or equal with positive/negative-pressure feed feeder.
A kind of negative pressure drip irrigation method the most according to claim 3, it is characterised in that include water source container and positive and negative pressure pipe,
Both can malleation drip irrigation, again can negative pressure drip irrigation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610225755.0A CN105900794A (en) | 2016-04-13 | 2016-04-13 | Negative-pressure drip irrigation device and negative-pressure drip irrigation method for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610225755.0A CN105900794A (en) | 2016-04-13 | 2016-04-13 | Negative-pressure drip irrigation device and negative-pressure drip irrigation method for same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105900794A true CN105900794A (en) | 2016-08-31 |
Family
ID=56745995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610225755.0A Pending CN105900794A (en) | 2016-04-13 | 2016-04-13 | Negative-pressure drip irrigation device and negative-pressure drip irrigation method for same |
Country Status (1)
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| CN (1) | CN105900794A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106577184A (en) * | 2017-02-21 | 2017-04-26 | 闫婷婷 | Modern agricultural drop irrigation system without energy consumption |
| CN106818425A (en) * | 2017-02-22 | 2017-06-13 | 赵阳 | A kind of modern agriculture Non-energy-consumption drip irrigation system |
| CN109738326A (en) * | 2019-01-04 | 2019-05-10 | 沈阳农业大学 | Vacuum cavitations and the integrated simple and easy method of auto-irrigation in a kind of realization experiment |
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Application publication date: 20160831 |