CN101378650B - Micro-irrigation head, micro-irrigation device and micro-irrigation system - Google Patents
Micro-irrigation head, micro-irrigation device and micro-irrigation system Download PDFInfo
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- CN101378650B CN101378650B CN200580052410XA CN200580052410A CN101378650B CN 101378650 B CN101378650 B CN 101378650B CN 200580052410X A CN200580052410X A CN 200580052410XA CN 200580052410 A CN200580052410 A CN 200580052410A CN 101378650 B CN101378650 B CN 101378650B
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- 238000003973 irrigation Methods 0.000 title claims abstract description 161
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 250
- 230000002262 irrigation Effects 0.000 claims abstract description 125
- 239000012528 membrane Substances 0.000 claims description 28
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 210000001736 capillary Anatomy 0.000 description 159
- 239000002689 soil Substances 0.000 description 28
- 241000196324 Embryophyta Species 0.000 description 18
- 239000012535 impurity Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 238000001914 filtration Methods 0.000 description 8
- 239000003621 irrigation water Substances 0.000 description 7
- 239000011148 porous material Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000008400 supply water Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000008239 natural water Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000027555 hydrotropism Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
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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
- A01G27/00—Self-acting watering devices, e.g. for flower-pots
- A01G27/006—Reservoirs, separate from plant-pots, dispensing directly into rooting medium
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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
- A01G27/00—Self-acting watering devices, e.g. for flower-pots
- A01G27/02—Self-acting watering devices, e.g. for flower-pots having a water reservoir, the main part thereof being located wholly around or directly beside the growth substrate
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Abstract
The present invention refers to a micro irrigation nozzle (1) and its micro irrigation device (2) and micro irrigation system, in which the micro irrigation nozzle (1) includes a water-processing chamber (11), a filter element (14) mounted in said water-processing chamber (11), and at least one capillary head (15) linked to a outlet (13); the micro irrigation device (2) includes a water-collecting vessel (21) and above said micro irrigation nozzle (1) linked to the water-collecting vessel (21); the micro irrigation system includes a water-distributing pipes (3) and above said micro irrigation nozzle (1) linked to the water-distributing pipes. The present invention can efficiently control speed of water passing through capillary medium, so the working life of the whole apparatus is greatly prolonged.
Description
Technical field
The present invention relates to a kind of slight irrigation device that plant is irrigated of being used for, is a kind of slight irrigation head, micro-irrigation device and irrigation system specifically.
Background technology
Underground slight irrigation in the past mainly is the drip irrigation form, is various countries' attention because of it has tangible water-saving result, can optimize quality of agricultural product and raising output, minimizing weed growth, not destroy plurality of advantages such as soil structure, convenient management, the comings and goings that does not influence ground, prolongation lifetime of system, reduction expense, saving labour.But owing to self have insoluble problem, still can't large-scale application.Mainly contain 2 points:
1, blockage problem.Under the underground drip irrigation condition, water dropper not only exists the same with drip surface because the physico chemistry that factors such as molecule or water quality cause stops up, but also the inducement that exists two other to result in blockage: the one, after the pipeline of pouring water was cut off the water, the negative pressure that hollow billet produces may suck the micropore of irrigator with molecule in the soil and result in blockage; The 2nd, hydrotropism's growth of plant root may make root intrusion weeper cause obstruction.
2, uniformity of irrigation water appilcation is wayward.Because it is underground that system imbeds, and can not directly measure the water dropper flow.Uniformity of irrigation water appilcation not only is subjected to the influence of operating pressure uniformity, temperature contrast and the water dropper manufacture deviation of each water dropper, and because water dropper delivery port diameter big (generally all more than 200 microns), its water yield is very responsive to the variation of pressure, under system's tube side drag effects, the flow difference of near-end and far-end is all very big, thereby all very difficult to the mensuration of the evaluation of system operation and uniformity of irrigation water appilcation.
In addition, no matter existing underground slight irrigation adopts drip irrigation or infiltrating irrigation form, though its water supply speed can be low to moderate per hour 3-5 premium on currency, finds by a large amount of tests, a lot of plant nursery stocks are only hundreds of milliliter even tens milliliters of the water yield day by day, and obviously drip irrigation and infiltrating irrigation exist surprising waste.For flow is diminished, someone uses membrane material control water yield, as: application number is 93206374 Chinese utility model patent, introduce a kind of device that supplies water to plant root, utilize the filter membrane that is contained in the delivery port place on the water bag, the mode that the logical membrane material of water in the water bag slowly oozes out is irrigated.But, there is insoluble problem in this invention in practical application: supply water in order to realize trace, the hole of membrane material all can be very little, and a large amount of minute impurities all can be arranged in our daily water consumption, comprise running water, well water etc., these impurity can stop up membrane material under normal pressure very soon.In order to guarantee water yield, just must be along with the aggravation of stopping up increase discharge pressure gradually, this certainly will expend the energy or artificial; The unmanned wage adjustment joint if impose big pressure at the very start, can occur again initial flow very big, along with stopping up the result that the aggravation flow reduces rapidly.Plant is to need stable trace to supply water, and does not have stable water supply, and trace supplies water and just can't realize.
The inventor has found membrane material some important feature by water in experiment: 1) light water is through membrane material, impurity is very big to the influence that film goes out water speed in its water, usually under natural pressure, promptly water is influenced by self gravitation only, and its water yield also can descend rapidly.2) water changes very sensitive by the speed of membrane material to pressure.3) fast more by the water flow velocity of membrane material, it is just tight more that the impurity that impurity forms on membrane material in the water is piled up (also claiming filter cake), and its obstruction speed is also just fast more, and water yield descends also just rapidly more.4) artificially reduce the flow velocity of water by film, help forming comparatively lax impurity and pile up on membrane material, the water capacity is easily passed through, and is difficult for taking place film and stops up, and the use of film is more permanent.Membrane material also is a kind of capillary medium, and the way of using capillary medium to carry out slight irrigation has it for a long time, but all gets nowhere.Reason is that capillary medium is a kind of irrigation water outlet material, is again a kind of filtering material, when irrigation water from its inner by the time, capillary medium is also being filtered the impurity in the water; When filtering afunction when falling (impurity is piled up airtight pore), its irrigation function also do not existed (obstruction).In order to possess its permanent strainability, just must slow down the flow velocity of water as far as possible or increase hydraulic pressure, can not appoint water flowed out naturally by gravity effect, this will certainly expend the energy or artificial; As appointing water to flow out naturally, its irrigation function can be lost along with the rapid forfeiture of filtering function.Therefore how making the irrigation function of capillary medium and filtering function give full play to permanent effect, is the key that addresses this problem.
Summary of the invention
The inventor found through experiments, the irrigation function and the filtering function of capillary medium is complete by the capillary medium with different qualities respectively, just effectively stabilize water by capillary medium (capillary head) with irrigation function and speed with capillary medium (filter element) of filtering function, greatly prolong their service time, become the slight irrigation device that automatic stabilisation truly supplies water.Here having utilized a very crucial characteristic capillaceous in the capillary medium, is exactly the capillary force that can produce behind its contact soil.
The object of the present invention is to provide a kind of slight irrigation head, micro-irrigation device and irrigation system, it can effectively control the water speed of crossing of capillary medium, the effective storage life of capillary medium is greatly prolonged, and then the service time of whole device or service life are greatly prolonged, to reach the purpose of long-time automatic irrigation.
Found through experiments, the hydrophilic capillary medium (capillary head) that will have certain capillary force is added in the water side of the hydrophilic capillary medium (filter element) that the discharge area is bigger, pore is littler, just can realize comparatively stable water supply irrigation., produce capillary force behind the capillary head contact soil here, water could arrive soil after having only by filter element and capillary head under the effect of capillary force.Capillary force not only is drawn onto soil with water, and control water is by the flow velocity of filter element.Incipient stage, be subjected to the restriction of capillary water yield in the capillary head, the water yield by filter element can be far below the natural water yield of its water under action of gravity, impurity is piled up with regard to having formed comparatively lax impurity in filter element surface in the water like this, its influence to the filter element water amount also can be very little, and at this moment the capillary head mainly plays the effect that reduces the filter element flow; After having passed through long water excessively, impurity is piled up tight gradually, originally under action of gravity, be difficult to water by filter element, because the effect of capillary head contact capillary force that soil produces, can continue to make water enter soil by filter element, so can keep the filter element water yield of significant period of time more again, at this moment the capillary head mainly plays the effect of reinforced filter element flow, greatly prolong the service time of filter element like this, the water yield of filter element is also greatly balanced.More than in the whole process, filter element mainly plays a role in filtering to impurity in the water, guarantees that the water that enters in the capillary head can not result in blockage, and makes it keep capillary force for a long time; The thin medium of capillary capillus then mainly plays the function of irrigating water outlet, and the while is the water generates control (the stable water yield by filter element) to passing through in the capillary medium that constitutes filter element incessantly.
Here capillary force and the interactional common result of water body pressure have determined water yield, through evidence: the pressure direction that produces when the direction and the capillary force of water body pressure is identical and greater than the control hydraulic pressure of capillary head when strong, can cause flow excessive, influence the service life of capillary head and filter element; And when the pressure direction of water body pressure direction and capillary force generation opposite, and when strong, the phenomenon of not water outlet or aqueous reflux will appear more than or equal to the control hydraulic pressure of capillary head.Wherein, the control hydraulic pressure of this capillary head is meant that by force the capillary head fully soaks the back by the needed minimum pressure of gas.On the other hand, filter element also plays and reduce the effect of water by a capillary flow under the constant situation of hydraulic pressure, thereby the hydraulic pressure that has also promptly reduced the capillary head has influence on flow.Based on above-mentioned situation, in the present invention, when general the use, guarantee that the absolute value of water body pressure is strong less than the control hydraulic pressure of capillary head, just can effectively prolong the service time of slight irrigation head.Even water outlet pressure is bigger in the beginning short time, also should make as early as possible control hydraulic pressure that its pressure drop is low to moderate the capillary head by force below.
Based on above-mentioned principle, the present invention can adopt following technical scheme to realize purpose of the present invention.
A kind of slight irrigation head, include the water treatment cavity, the water treatment cavity is provided with water inlet and at least one delivery port, be provided with the filter element that constitutes by hydrophilic capillary medium in the described water treatment cavity, be connected with at least one capillary head on the described delivery port, described capillary head comprises shell and the capillary inner core that has that is arranged in this shell.
The present invention also provides a kind of micro-irrigation device that utilizes above-mentioned slight irrigation head, the slight irrigation head that includes water container and be connected in water container and be communicated with the inner chamber of water container, described slight irrigation head includes the water treatment cavity, the water treatment cavity is provided with water inlet and at least one delivery port, in described water treatment cavity, be provided with the filter element that constitutes by hydrophilic capillary medium, be connected with at least one capillary head on the described delivery port, described capillary head comprises shell and the capillary inner core that has that is arranged in this shell.Use this micro-irrigation device, can carry out long-time automatic irrigation, need not manually to manage and protect plant.
In the present invention, the water storage of water container height can be arranged to make the absolute value of the water body pressure that a capillary water inlet is subjected to strong less than the control hydraulic pressure of capillary head, with the service time of effective prolongation slight irrigation head.
As an optional embodiment, described micro-irrigation device can be the flowerpot shape, and its sidewall to small part is the hollow structure with cavity, and this cavity forms described water container.Like this, in the irrigation device of this flowerpot shape, put into soil after, can be directly used in and culture flowers and plants, very convenient.
In this embodiment, described slight irrigation head can be connected on the madial wall of the cavity that forms water container, and is connected with water container.
Described slight irrigation head can be connected on the water container by a tube connector, and is connected with water container.
On the sidewall of described flowerpot shape micro-irrigation device and/or the bottom be provided with jack, described slight irrigation head is inserted in this jack, and makes the outer end of the capillary head of slight irrigation head be positioned at flowerpot, thereby supplies water for the flowers and plants in the flowerpot.
The present invention also provides a kind of irrigation system that utilizes above-mentioned slight irrigation head, this system comprises the water-supply-pipe that is connected in the water source, on this water-supply-pipe, be connected with one or one with the slight irrigation head, described slight irrigation head includes the water treatment cavity, the water treatment cavity is provided with water inlet and at least one delivery port, described water inlet is provided with filter element, is connected with at least one capillary head on the described delivery port, and described capillary head comprises shell and the capillary inner core that has that is arranged in this shell.
In this irrigation system, can be provided with the flowmeter of amount of inlet water control valve and detection flow of inlet water on the described water-supply-pipe.During use control valve and the water that pressure is arranged are connected,,, control valve is reached corresponding position according to the indication of flowmeter by calculating total water yield of the whole capillary heads that connected.Water can arrive the position of all capillary heads by filter element and pipeline, contacts with soil at the capillary head under the attraction of the capillary force that produces, and water will be inhaled into soil.In the present invention, control valve should be controlled the pressure from water body that a capillary water inlet is subjected in the most of the time strong less than the control hydraulic pressure of capillary head, preferably the control valve control water yield should be lower than filter element and the capillary head water yield in nature, the service life that so just can improve filter element and capillary head.Because the capillary head is imbedded underground inconvenience and changed, it is very important to increase the service life, and select the capillary head of outlet capacity greater than actual water requirement when therefore using, to delay the duration of congestion of capillary head.The control valve control water yield is to slow down the flow velocity on filter membrane surface at first, and the bigger filter element of usable floor area of therefore should trying one's best so that filter element surface impurity is piled up is comparatively lax, prolongs the service time of film; Along with film progressively stops up, can progressively adjust control valve, to keep water amount; When the control valve adjustment can't be kept water yield, replaceable filter elements.And so forth, can prolong the service time of capillary head to greatest extent.Guarantee that a capillary aperture maintains the 1-100 micron, promptly the control hydraulic pressure of capillary head remains on by force between the 3-600KPa, evenly supplies water automatically so that the realization system is long-time.
The water-supply-pipe of irrigation system of the present invention comprises the trunk line that is connected in the water source and is connected in one or more than one branch pipe(tube) of trunk line.
The inner core of the capillary head of above-mentioned slight irrigation head of the present invention can constitute by having capillary hydrophilic capillary medium.
Above-mentioned filter element of the present invention can be made of one deck or the filter membrane more than one deck.
In the present invention, the maximum diameter of hole of described filter element can more help realization of the present invention less than the maximum diameter of hole of capillary head.According to the common idea of people: the hole of filter element is too little to be difficult to make water to pass through; Especially the filter element hole is less than the maximum diameter of hole of capillary head, the capillary force of filter element will be greater than the capillary force of capillary head so, therefore the capillary head also just can't be attracted to delivery port by water inlet by filter element with water automatically, also just can't realize by the capillary force automatic irrigation.But among the present invention, because filter element is to be fully immersed in the water, just there is not capillary force in the surface tension that does not have gas-liquid interface to form on it yet; In addition, filter element is hydrophilic filter membrane, and the water of its adjacent pores can join together, and its surface tension is descended, and resistance reduces.Though therefore hole is very little, as long as the pressure difference of filter element both sides, water will flow.When the capillary head contacts with soil,, therefore, also can make water more easily flow through filter element because the water sorption of capillary force makes the pressure of the pressure of filter element water outlet side less than its influent side.Moreover a capillary water yield is seldom, though therefore the filter element area is very little, water amount is very low, can satisfy the needs of capillary head also.Find that through experiment cooperate with the best hole of filter element to be: the maximum diameter of hole of capillary head is between 1 micron-100 microns; The maximum diameter of hole of filter element is between 0.1 micron-50 microns.
In the present invention, the discharge area of described filter element can be greater than the discharge area of capillary head.Because the discharge area of filter membrane is bigger, the flow velocity of water must reduce, and helps more realizing that laxer impurity piles up, and prolongs the service time of filter membrane.Practice shows that the discharge area of filter element is more than 10 times of discharge area of capillary head, just can effectively prolong the service time of film.The discharge area of optimal selection filter element is more than 100 times of discharge area of capillary head.
In the present invention, the delivery port on the water treatment cavity of described slight irrigation head can be two or more.
In the present invention, can be connected with two or plural capillary head on the delivery port on the water treatment cavity of described slight irrigation head.
In the present invention, the capillary head of described slight irrigation head can be connected in the delivery port of water treatment cavity by tube connector.
The present invention is owing to adopted closeer filter element that water is filtered before the suction of capillary head earlier, and the influence that water outlet capillary head is stopped up by physico chemistry can be controlled at acceptable scope, thereby has greatly prolonged the service life of capillary head.And because the capillary outlet pipe of capillary head is superfine, can produce suction power behind the contact soil, therefore can accurately control water yield needs water speed consistent with plant, round-the-clock automatic water-supply can be accomplished by system like this, not only more water saving, and the phenomenon that negative pressure suction soil particle results in blockage can not appear; Plant root also can not be invaded in the much smaller pore and be resulted in blockage; Because the effect of capillary force, each capillary head is just as a little water pumper, as long as contact soil, the capillary in the capillary head will constantly suck soil with the source, water source, changed the defective that the drip irrigation water side does not produce power, it is subjected to tube side resistance and pressure variable effect just much smaller.
Further, irrigation system of the present invention is owing to can utilize amount of inlet water control valve and the flowmeter that detects flow of inlet water to control out water speed, make the flow of inlet water of water-supply-pipe be lower than the total water yield of whole slight irrigation heads under nature that is connected on the water-supply-pipe, thereby the unsaturated water outlet that forms the capillary head is irrigated, and has greatly prolonged the service life of capillary head; And when a capillary water yield was descended, can regulate the amount of inlet water control valve suitably increased discharge pressure, thereby keeps water yield.
Description of drawings
A kind of structural representation of Fig. 1 slight irrigation head of the present invention;
Another structural representation of Fig. 2 slight irrigation head of the present invention;
A structural representation again of Fig. 3 slight irrigation head of the present invention;
A kind of structural representation of Fig. 4 micro-irrigation device of the present invention;
The another kind of structural representation of Fig. 5 micro-irrigation device of the present invention;
Another structural representation of Fig. 6 micro-irrigation device of the present invention;
A kind of structural representation of Fig. 7 irrigation system of the present invention.
Embodiment
As Figure 1-3, the invention provides a kind of slight irrigation 1, include water treatment cavity 11, water treatment cavity 11 is provided with water inlet 12 and at least one delivery port 13, in described water treatment cavity 11, be provided with the filter element 14 that constitutes by hydrophilic capillary medium, be connected with at least one capillary 15 on the described delivery port 13, described capillary 15 comprises shell 151 and is arranged at the capillary inner core 152 that has in this shell 151.Like this, during use, owing to adopted 14 pairs of water of filter element to filter earlier, 15 influence that stopped up by physico chemistry of water outlet capillary can be controlled at acceptable scope before capillary 15 suctions, thereby have greatly prolonged the service life of capillary 15; Be subjected to the restriction of capillary water yield in the capillary 15 simultaneously, the water yield by filter element 14 can be far below the natural water yield of its water under action of gravity, impurity also can be very little to the influence of filter element 14 in the water like this, and also can prolong significantly the service life of filter element 14.And because the capillary outlet pipe of capillary 15 is superfine, can accurately control water yield needs water speed consistent with plant, and round-the-clock water supply can be accomplished by system like this, not only more economizes on water, and the phenomenon that negative pressure suction soil particle results in blockage can not occur; Plant root also can not be invaded in the much smaller pore and be resulted in blockage; Because the effect of capillary force, each capillary 15 is just as a little water pumper, as long as contact soil, the capillary in the capillary 15 will constantly suck soil with the source, water source, has changed the defective that the drip irrigation water side does not produce power.
Shown in Fig. 4-6, the present invention also provides a kind of micro-irrigation device 2 that utilizes above-mentioned slight irrigation 1, include water container 21 and be connected in water container 21 and the slight irrigation that is communicated with the inner chamber of water container 21 1, described slight irrigation 1 includes water treatment cavity 11, water treatment cavity 11 is provided with water inlet 12 and at least one delivery port 13, in described water treatment cavity 11, be provided with the filter element 14 that constitutes by hydrophilic capillary medium, be connected with at least one capillary 15 on the described delivery port 13, described capillary 15 comprises shell 151 and is arranged at the capillary inner core 152 that has in this shell 151.Use micro-irrigation device 2 of the present invention, because adopting slight irrigation 1 supplies water in soil, after 14 pairs of water of filter element filter in the slight irrigation 1, under the capillary force effect of capillary 15, slowly suck the water in the water container 21 in the soil continuously, thereby can carry out long-time automatic irrigation to plant, and need not manually to manage and protect, not only greatly save water, and reduced maintenance cost.
As an optional embodiment, shown in Fig. 5-6, micro-irrigation device 2 of the present invention also can be the flowerpot shape, and its sidewall to small part is the hollow structure with cavity, and this cavity forms described water container 21.Like this, can be used as flowerpot after in the irrigation device 2 of this flowerpot shape, putting into soil and use, can be directly used in and culture flowers and plants, very convenient.Water container 21 tops at this flowerpot shape irrigation device 2 can be provided with water filling port 22, after the water in water container 21 uses up, can add water in water container 21 by this water filling port 22.
In this embodiment, as shown in Figure 5, described slight irrigation 1 can be connected on the madial wall of the cavity that forms water container 21, and be connected with water container 21, the outer end of the capillary of this slight irrigation 1 15 can extend into flowerpot shape micro-irrigation device 2 in the middle of in the soil placed, thereby serike is supplied water in soil.
As shown in Figure 6, described slight irrigation 1 can be connected on the water container 21 by tube connector 16, and is connected with water container 21.
As shown in Figure 6, on the sidewall of described flowerpot shape micro-irrigation device 2 and/or the bottom also can be provided with jack 23, and described slight irrigation 1 is inserted in this jack 23, and makes the outer end of the capillary 15 of slight irrigation 1 be arranged in the soil of flowerpot, thereby supplies water for the flowers and plants in the flowerpot.This mode is because slight irrigation 1 is to be inserted in flowerpot by the jack 23 that is positioned on flowerpot sidewall or the bottom, in use for some time, can change slight irrigation 1 easily.
As shown in Figure 7, the present invention also provides a kind of irrigation system that utilizes above-mentioned slight irrigation 1, this system comprises the water-supply-pipe 3 that is connected in the water source, on this water-supply-pipe 3, be connected with or more than one slight irrigation 1, described slight irrigation 1 includes the water treatment cavity, described water treatment cavity 11 is provided with water inlet 12 and at least one delivery port 13, in described water treatment cavity 11, be provided with the filter element 14 that constitutes by hydrophilic capillary medium, be connected with or more than one capillary 15 on the described delivery port 13, described capillary 15 comprises shell 151 and is arranged at the capillary inner core 152 that has in this shell 151.
In the present invention, can further be provided with the flowmeter 32 of amount of inlet water control valve 31 and detection flow of inlet water on the described water-supply-pipe 3.The flow of inlet water that the amount of inlet water control valve 31 of irrigation system of the present invention is regulated water-supply-pipes 3 is preferably lower than the total water yield of whole capillarys of being connected on the water-supply-pipe 3 15 under nature, to improve the service life of filter element 14 and capillary 15.
As an embodiment, be illustrated in figure 7 as the example that on water-supply-pipe 3, is connected with a slight irrigation 1, described capillary 15 can be connected in the delivery port 13 of water treatment cavity 11 by tube connector, this tube connector is connected in the trunk line 33 and or more than one branch pipe(tube) 34 being connected on the trunk line 33 of water treatment cavity 11 delivery ports 13, thereby this capillary head is connected on the delivery port 13 of water treatment cavity 11 by this trunk line 33 and branch pipe(tube) 34.During use control valve 31 and the water that pressure is arranged are connected, by calculating total water yield of the whole capillarys connected 15, indication according to flowmeter 32, control valve 31 is reached corresponding position, water can arrive the position of all capillarys 15 by water-supply-pipe 3 and the water treatment cavity 11 that is connected in the water source and the trunk line 33 that is connected in the water treatment cavity and one or more than one branch pipe(tube) 34, contact under the attraction of the capillary force that produces with soil in capillary 15, water will be inhaled into soil.
In the present invention, as another selectable embodiment, this water-supply-pipe 3 also can comprise the trunk line that is connected in the water source and be connected in two or more branch pipe(tube) of trunk line, described slight irrigation head is also corresponding to have two or more, and be connected on the branch pipe(tube) (not shown).
In the present invention, change because capillary 15 is imbedded underground inconvenience, it is very important to increase the service life, and select outlet capacity when therefore using greater than the capillary of actual water requirement 15, to delay the duration of congestion of capillary 15.
The inner core of above-mentioned capillary of the present invention 15 can constitute by having capillary hydrophilic capillary medium.This hydrophilic capillary medium comprises porous media and bundle of capillary tubes, and wherein this bundle of capillary tubes comprises a large amount of irregular hollow pipeline that is formed by numerous hydrophilic threads gap and the bundle of capillary tubes of forming.
As Fig. 1-3, above-mentioned filter element 14 of the present invention can be made of one deck or the filter membrane more than one deck.Certainly, the filter element 14 among the present invention also can be for constituting other filter elements by hydrophilic capillary medium, as it is first-class to have the capillary of filtration, does not limit at this.
In the present invention, the maximum diameter of hole of the described filter element 14 that is made of filter membrane can be less than the maximum diameter of hole of capillary 15, more to help realization of the present invention.Capillary 15 cooperates with the best hole of the filter element 14 that is made of filter membrane and is in the present invention: the maximum diameter of hole of capillary 1 is between 1 micron-100 microns; The maximum diameter of hole of the filter element 14 that is made of filter membrane is between 0.1 micron-50 microns.
Because the discharge area of filter element 14 is bigger, the flow velocity of water must reduce, and helps more realizing that laxer impurity piles up, and prolongs the service time of filter membrane, thereby in the present invention, the discharge area of the described filter element 14 that is made of filter membrane can be greater than the discharge area of capillary 1.The discharge area of the filter element 14 that is made of filter membrane is more than 10 times of discharge area of capillary 15, just can effectively prolong the service time of film.The discharge area of the filter element 14 that optimal selection is made of filter membrane is more than 100 times of discharge area of capillary 15.
Shown in Fig. 2,3, in the present invention, the delivery port 13 on the water treatment cavity 11 of described slight irrigation 1 can be two or more.
As shown in Figure 3, in the present invention, can be connected with two or plural capillary 15 on the delivery port 13 on the water treatment cavity 11 of described slight irrigation 1, so that supply water for a plurality of positions simultaneously.
As shown in Figure 3, in the present invention, the capillary of described slight irrigation 1 15 can be connected in the delivery port 13 of water treatment cavity 11 by a tube connector 16.
The foregoing description is several better embodiment of the present invention, only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (44)
1. slight irrigation head, it is characterized in that, include the water treatment cavity, the water treatment cavity is provided with water inlet and at least one delivery port, in described water treatment cavity, be provided with the filter element that constitutes by hydrophilic capillary medium, be connected with at least one capillary head on described delivery port, described capillary head comprises shell and the capillary inner core that has that is arranged in this shell.
2. slight irrigation head as claimed in claim 1 is characterized in that, described inner core constitutes by having capillary hydrophilic capillary medium.
3. slight irrigation head as claimed in claim 1 is characterized in that, described filter element is made of one deck or the filter membrane more than one deck.
4. slight irrigation head as claimed in claim 3 is characterized in that the maximum diameter of hole of described filter element is less than the maximum diameter of hole of capillary head.
5. slight irrigation head as claimed in claim 1 is characterized in that, the maximum diameter of hole of described capillary head is 1 micron-100 microns.
6. as claim 1 or 5 described slight irrigation heads, it is characterized in that the maximum diameter of hole of described filter element is 0.1 micron-50 microns.
7. slight irrigation head as claimed in claim 3 is characterized in that the discharge area of described filter element is greater than the discharge area of capillary head.
8. slight irrigation head as claimed in claim 7 is characterized in that, the discharge area of filter element is more than 10 times of discharge area of capillary head.
9. slight irrigation head as claimed in claim 7 is characterized in that, the discharge area of filter element is more than 100 times of discharge area of capillary head.
10. slight irrigation head as claimed in claim 1 is characterized in that, described delivery port is two or more.
11. slight irrigation head as claimed in claim 1 is characterized in that, is connected with two or plural capillary head on the described delivery port.
12. slight irrigation head as claimed in claim 1 is characterized in that, described capillary head is connected in the delivery port of water treatment cavity by tube connector.
13. micro-irrigation device, it is characterized in that, the slight irrigation head that includes water container and be connected in water container and be communicated with the inner chamber of water container, described slight irrigation head includes the water treatment cavity, the water treatment cavity is provided with water inlet and at least one delivery port, be provided with the filter element that is made of hydrophilic capillary medium in the described water treatment cavity, be connected with at least one capillary head on the described delivery port, described capillary head comprises shell and the capillary inner core that has that is arranged in this shell.
14. micro-irrigation device as claimed in claim 13 is characterized in that, the water storage of described water container highly is arranged to make the absolute value of the water body pressure that a capillary water inlet is subjected to strong less than the control hydraulic pressure of capillary head.
15. micro-irrigation device as claimed in claim 13 is characterized in that, described micro-irrigation device is the flowerpot shape, and its sidewall to small part is the hollow structure with cavity, and this cavity forms described water container.
16. micro-irrigation device as claimed in claim 15 is characterized in that, described slight irrigation head is connected on the madial wall of the cavity that forms water container, and is connected with water container.
17., it is characterized in that described slight irrigation head is connected on the water container by tube connector, and is connected with water container as claim 13 or 15 described micro-irrigation devices.
18. micro-irrigation device as claimed in claim 17 is characterized in that, on the sidewall of described flowerpot shape micro-irrigation device and/or the bottom be provided with jack, described slight irrigation head is inserted in this jack.
19. micro-irrigation device as claimed in claim 13 is characterized in that, described inner core constitutes by having capillary hydrophilic capillary medium.
20. micro-irrigation device as claimed in claim 13 is characterized in that, described filter element is made of one deck or the filter membrane more than one deck.
21. micro-irrigation device as claimed in claim 20 is characterized in that, the maximum diameter of hole of described filter element is less than the maximum diameter of hole of capillary head.
22. micro-irrigation device as claimed in claim 13 is characterized in that, the maximum diameter of hole of described capillary head is 1 micron-100 microns.
23., it is characterized in that the maximum diameter of hole of described filter element is 0.1 micron-50 microns as claim 13 or 22 described micro-irrigation devices.
24. micro-irrigation device as claimed in claim 20 is characterized in that, the discharge area of described filter element is greater than the discharge area of capillary head.
25. micro-irrigation device as claimed in claim 24 is characterized in that, the discharge area of filter element is more than 10 times of discharge area of capillary head.
26. micro-irrigation device as claimed in claim 24 is characterized in that, the discharge area of filter element is more than 100 times of discharge area of capillary head.
27. micro-irrigation device as claimed in claim 13 is characterized in that, described delivery port is two or more.
28. micro-irrigation device as claimed in claim 13 is characterized in that, is connected with two or plural capillary head on the described delivery port.
29. irrigation system, it is characterized in that, this system comprises the water-supply-pipe that is connected in the water source, on this water-supply-pipe, be connected with one or more than one slight irrigation head, described slight irrigation head includes the water treatment cavity, the water treatment cavity is provided with water inlet and at least one delivery port, in described water treatment cavity, be provided with the filter element that constitutes by hydrophilic capillary medium, be connected with at least one capillary head on the described delivery port, described capillary head comprises shell and the capillary inner core that has that is arranged in this shell.
30. irrigation system as claimed in claim 29 is characterized in that, described water-supply-pipe is provided with the amount of inlet water control valve and detects the flowmeter of flow of inlet water.
31. irrigation system as claimed in claim 30 is characterized in that, described amount of inlet water control valve is regulated inflow makes the absolute value of the water body pressure that a capillary water inlet is subjected to strong less than the control hydraulic pressure of capillary head.
32. irrigation system as claimed in claim 30 is characterized in that, the flow of inlet water that described amount of inlet water control valve is regulated water-supply-pipe is lower than the total water yield of whole slight irrigation heads under nature that is connected on the water-supply-pipe.
33. irrigation system as claimed in claim 29 is characterized in that, the delivery port of described water treatment cavity is two or more.
34. as claim 29 or 33 described irrigation systems, it is characterized in that, be connected with two or plural capillary head on the described delivery port.
35. irrigation system as claimed in claim 34, it is characterized in that, described capillary head is connected in the delivery port of water treatment cavity by tube connector, and this tube connector comprises the trunk line that is connected to the water treatment cavity and is connected in one or more than one branch pipe(tube) of trunk line.
36. irrigation system as claimed in claim 29 is characterized in that, described water-supply-pipe comprises the trunk line that is connected in the water source and is connected in one or more than one branch pipe(tube) of trunk line.
37. irrigation system as claimed in claim 29 is characterized in that, the inner core of described capillary head constitutes by having capillary hydrophilic capillary medium.
38. irrigation system as claimed in claim 29 is characterized in that, described filter element is made of one deck or the filter membrane more than one deck.
39. irrigation system as claimed in claim 38 is characterized in that, the maximum diameter of hole of described filter element is less than the maximum diameter of hole of capillary head.
40. irrigation system as claimed in claim 29 is characterized in that, the maximum diameter of hole of described capillary head is 1 micron-100 microns.
41., it is characterized in that the maximum diameter of hole of described filter element is 0.1 micron-50 microns as claim 29 or 40 described irrigation systems.
42. irrigation system as claimed in claim 38 is characterized in that, the discharge area of described filter element is greater than the discharge area of capillary head.
43. irrigation system as claimed in claim 42 is characterized in that, the discharge area of filter element is more than 10 times of discharge area of capillary head.
44. irrigation system as claimed in claim 42 is characterized in that, the discharge area of described filter element is more than 100 times of discharge area of capillary head.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2005/002323 WO2007073614A1 (en) | 2005-12-27 | 2005-12-27 | A micro irrigation nozzle and its micro irrigation device and micro irrigation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101378650A CN101378650A (en) | 2009-03-04 |
| CN101378650B true CN101378650B (en) | 2011-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200580052410XA Expired - Fee Related CN101378650B (en) | 2005-12-27 | 2005-12-27 | Micro-irrigation head, micro-irrigation device and micro-irrigation system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101378650B (en) |
| WO (1) | WO2007073614A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549334A (en) * | 2008-04-03 | 2009-10-07 | 诸钧 | Filtration irrigation device |
| US8979003B2 (en) * | 2009-09-29 | 2015-03-17 | Jun Zhu | Filtration irrigation device |
| JP2012095638A (en) * | 2010-10-04 | 2012-05-24 | Sumitomo Electric Ind Ltd | Water pumping device |
| WO2017122054A1 (en) * | 2016-01-16 | 2017-07-20 | Tajvar Pouya | A double layer flower pot |
| CN106212221A (en) * | 2016-07-27 | 2016-12-14 | 栾清杨 | A kind of method for utilizing micro-irrigation of culturing-trees |
| CN110235758A (en) * | 2018-03-09 | 2019-09-17 | 台湾海博特股份有限公司 | A kind of Intelligent irrigation system and its accurate output duct device |
| CZ2020549A3 (en) * | 2020-10-10 | 2022-03-30 | České vysoké učenà technické v Praze | Irrigation system for irrigated places of vertical green facades of buildings |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2601012Y (en) * | 2003-01-23 | 2004-01-28 | 诸钧 | Portable micro-irrigation appts. |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1706470A1 (en) * | 1989-08-25 | 1992-01-23 | Украинский Научно-Исследовательский Институт Орошаемого Земледелия | Subsurface irrigator |
| CN2149098Y (en) * | 1993-03-19 | 1993-12-15 | 冯煤生 | Bag for supplying water to roots of plant |
| CN2277167Y (en) * | 1996-10-24 | 1998-04-01 | 农业部规划设计研究院 | Fertilizer drill unit in micro-irrigation system |
| GR20000100065A (en) * | 2000-02-28 | 2001-10-31 | Emitter with water inlet filter and method of assembly thereof |
-
2005
- 2005-12-27 CN CN200580052410XA patent/CN101378650B/en not_active Expired - Fee Related
- 2005-12-27 WO PCT/CN2005/002323 patent/WO2007073614A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2601012Y (en) * | 2003-01-23 | 2004-01-28 | 诸钧 | Portable micro-irrigation appts. |
| CN1518861A (en) * | 2003-01-23 | 2004-08-11 | 钧 诸 | Water control valve and pipe as well as application in micro irrigation technique for plant |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007073614A1 (en) | 2007-07-05 |
| CN101378650A (en) | 2009-03-04 |
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