CN101141875B - Water-controlled valve tube, water-controlled head and micro-irrigator - Google Patents
Water-controlled valve tube, water-controlled head and micro-irrigator Download PDFInfo
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- CN101141875B CN101141875B CN2005800492005A CN200580049200A CN101141875B CN 101141875 B CN101141875 B CN 101141875B CN 2005800492005 A CN2005800492005 A CN 2005800492005A CN 200580049200 A CN200580049200 A CN 200580049200A CN 101141875 B CN101141875 B CN 101141875B
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- water
- control valve
- valve pipe
- hydrophilic thread
- shell
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 344
- 238000003973 irrigation Methods 0.000 claims description 36
- 239000012528 membrane Substances 0.000 claims description 29
- 238000001914 filtration Methods 0.000 claims description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 239000003242 anti bacterial agent Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 abstract description 40
- 230000000694 effects Effects 0.000 description 12
- 239000002689 soil Substances 0.000 description 12
- 230000002262 irrigation Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 244000005700 microbiome Species 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 230000003467 diminishing effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010148 water-pollination Effects 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000013515 script Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- A01G27/008—Component parts, e.g. dispensing fittings, level indicators
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Nozzles (AREA)
- Domestic Plumbing Installations (AREA)
Abstract
The invention is provided with a water controlling valve pipe, water controlling head and microirrigator. The water controlling valve pipe includes a housing and a core positioned within the housing, the housing is provided with a water inlet and water outlet, the core is formed of a bundle of hydrophilic string, the hydrophilic string extend to the water outlet from the water inlet at any rate, the average space among at least part of hydrophilic string in the core becomes small little by little along the direction of water flow. The impurities is spaced and fixed on the different cross sections according to its size and the angle in the water, the smaller impurities can flow through the space, thus which couldn't provide ''unwanted block'' in the pipe.
Description
Technical field
The present invention relates to a kind of slight irrigation device, is a kind of water control valve pipe, control head and micro-irrigation device specifically.
Background technology
What current agricultural irrigation was economized on water the most is slight irrigation, and as drip irrigation and infiltrating irrigation, its water supply speed can be low to moderate per hour 3-5 premium on currency.But find that 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, obviously drip irrigation and infiltrating irrigation also exist surprising waste.Its reason be to drip ooze head the water outlet aperture generally all more than the 1-0.5 millimeter, under the situation of this aperture, it is very limited that capillary is brought into play the effect of its controlled water flow, so, drip and ooze head to go out water speed still too fast.
In order to address this problem, the applicant invents out a kind of quantitative water control valve pipe, and it comprises surrounding layer and be arranged at the interior inner core of surrounding layer that described inner core constitutes by playing capillary porous media or bundle of capillary tubes.By experimental results demonstrate, this aperture, porous control head water side, possesses certain control outlet capacity, promptly controlling capillary in the head can bear the normal pressure of certain limit or negative pressure and water be flowed out or water body flows backwards, have only behind its contact soil, the capillary force of soil just can be drawn the water in the control head.Therefore, the application prospect of the present invention in water-saving agriculture is irrigated is very vast, it has not only realized the full automatic water supply and the long-time zero energy consumption of irrigating at independent little water source, and, make independent little water source irrigate this new irrigation method and be able to low-cost extensive use for open-air water storage, carrying, construction and plantation provide condition very easily.On the other hand,, also can realize the automatic diffusion that water body ascends, be equivalent to the effect of micro pump fully, and be not have power consumption even under need not the situation of the energy.This also is that human society realizes not having the quantitative automatic irrigation of power consumption for the first time.
But foregoing invention also has problems in practical application, after the aperture diminishes, water quality requirement is just uprised, and is that the more little this trend in aperture is obvious more.If water quality is bad, use micropore just to stop up easily for a long time.The applicant finds that the reason that micropore is resulted in blockage is two aspects: the one, and original molecule stops up in the water body, and after another was the long-time placement of water body, microbial reproduction caused in the water.In case big impurity is arranged by micropore, will be stuck on the micropore; Or because the effect of putting up a bridge, several big impurity are together stayed on the micropore, and as time passes, above more impurity can be deposited in gradually, it is littler that hole becomes, and the impurity that many scripts can pass through can not pass through, form " unnecessary obstruction ", discharge is fallen sharply.If be beforehand with degree of depth water treatment, mean that then this system normally moves the higher fund input of needs, can hinder this technology being extensive use of in agriculture and forestry.
The applicant finds in experiment, impurity in the water (comprising microorganism) particle size and different, vary, there are not size and the identical particle of shape, even close particle is arranged, the length and width height of particle self also has nothing in common with each other, its inclination angle along water (flow) direction in current also varies, so its projection in water (flow) direction is also inequality, if can utilize the big low-angle minor variations of grain shape, it is separately fixed on the bigger diverse location of mutual space length, and this space be enough to make water and wherein impurity pass through smoothly, so this structure just can (impurity level be certain under certain water yield, particle size distribution is certain) play anti-blocking effect, simultaneously, also can save the high investment of carrying out because of water quality treatment.
Summary of the invention
The object of the present invention is to provide a kind of water control valve pipe, control head and micro-irrigation device, can prevent or reduce impurity obstruction water control valve pipe, control head and micro-irrigation device in the water.
Found through experiments, the water control valve tubular construction that hydrophilic wire harness is become helps realizing target of the present invention most.In the water control valve tubular construction that this hydrophilic wire harness becomes, the hydrophilic thread trend is consistent with the current trend, and the space between the hydrophilic thread forms hole, and the hole of its water inlet is bigger, so that most of impurity enters the water control valve pipe smoothly; The water side hole should be minimum, to guarantee the control outlet capacity of water control valve pipe.Mean gap between the hydrophilic thread in the water control valve pipe diminishes gradually along water (flow) direction, promptly the distance between adjacent two hydrophilic threads all is to be water inlet to the diminishing trend in water side arbitrarily, such as, hydrophilic wire harness can be become conical structure, shape is in an angle each other to make wherein any adjacent two hydrophilic threads, when enough hour of angle, apart from minor variations, will produce very big displacement at current direction at the adjacent hydrophilic thread of current tangential direction.As: when angle is 1 when spending, change to apart from 8UM from hydrophilic wire spacing 10UM, the middle long space of 115UM of can having an appointment, and the space that forms between this space and laterally adjacent other hydrophilic thread communicates, this space are enough to by current and some more small impurities to horizontal other space.That is to say two hydrophilic wire spacings be 10UM and the distance for being blocked by impurity respectively at the 8UM place, also and do not mean that herein the pore that forms is blocked, the space that current and impurity wherein can be walked around 115UM between this two stuck point flows to the space that adjacent hydrophilic thread forms, and continues to move ahead.So originally, in one plane the impurity of being blocked is just staggered according to angle in its size, the water is fixed on different cross section, and less impurity also can flow through between its space of staggering smoothly, can not form " unnecessary obstruction ".In addition, even some bundle hydrophilic threads are parallel putting together arbitrarily, wherein also have some hydrophilic threads and form the phenomenon that diminishes gradually to the other end by an end naturally, if current also move along this direction, these hydrophilic threads also can play the fixedly effect of impurity of staggering, and just overall degree can be weak.
Based on above-mentioned principle, the present invention can adopt following technical scheme to realize purpose of the present invention.
A kind of water control valve pipe, comprise shell and through the inner core of shell, described shell is provided with water inlet and water side, described inner core is made of a branch of hydrophilic thread, hydrophilic thread extends to the water side by water inlet at least, and the mean gap to the small part inner core between the hydrophilic thread diminishes gradually along water (flow) direction.
Described shell is a column structure, and hydrophilic thread extends outside the water inlet, and the mean gap between the hydrophilic thread outside described this water inlet diminishes gradually along water (flow) direction.
The bore of each cross section is linearity by water inlet gradually to the water side and diminishes on the shell, and the mean gap between the hydrophilic thread in the shell diminishes gradually along water (flow) direction.
The shell of water control valve pipe can be pyramidal structure among the present invention, is preferably conical structure; The bevel angle of described conical shell is that 0 degree is to 30 degree.The shell of water control valve pipe also can be helical structure; Regardless of the structure of shell,, the situation that the cross section bore diminishes suddenly promptly do not occur and get final product as long as the bore of each cross section is linearity by water inlet gradually to the water side and diminishes on the described shell.The variation of angle exerts an influence to going out water speed, and under the constant situation of other condition, angle is more for a short time, and to go out water speed slow more.
Among the present invention, distance between described any two adjacent hydrophilic threads is reduced to the water side gradually by water inlet, and its distance reaches minimum during to the water outlet end, and the hole of formation also is the water control hole crack, it has determined the control outlet capacity of this water control valve pipe, and is the key factor that determines the water yield.To locate the maximum diameter of hole scope in the water control hole crack that each bar hydrophilic thread forms be the 1-300 micron in this water side among the present invention.
Hydrophilic thread described in the present invention may extend into outside the water side, this its extend to hydrophilic thread outside the water control valve pipe water side, because its hydrophily, water in the water control valve pipe can be held its surperficial assisting, when its with after soil contacts, because soil also is hydrophilic substance, water will spread out in soil, reaches the purpose of water supply.
Among the present invention, too near in order to prevent hydrophilic thread at some partial distance, so that being adjacent to and resulting in blockage, the hydrophilic thread in the described inner core can be thickness and is crisscross arranged; Also can be on described each bar hydrophilic thread horizontal and/or oblique some grooves and/or the fin of being provided with; Described hydrophilic thread also can be and curls the shape setting or wear beading etc. on described hydrophilic thread, all can reach the effect that further prevents or reduce obstruction with upper type.
Among the present invention, can add antibacterial agent in this bundle hydrophilic thread, to prevent bacterium multiplying and stop up the water control valve pipe in the water control valve pipe.
Among the present invention, the water side head of described shell is made by the material that can decompose gradually, setting-up time length, after head stopped up gradually, its head material decomposed disengaging gradually, and this is located former bound hydrophilic thread and is loosened, it is big that space in the hydrophilic thread becomes, but water control valve pipe water supply start again.
The present invention also provides a kind of control head, include the filtration cavity, filter cavity and be provided with water inlet and at least one delivery port, described water inlet is provided with filter element, be connected with at least one water control valve pipe on the described delivery port, described water control valve pipe comprises shell and through the inner core of shell, described shell is provided with water inlet and water side, described inner core is made of a branch of hydrophilic thread, hydrophilic thread extends to the water side by water inlet at least, and the mean gap to the small part inner core between the hydrophilic thread diminishes gradually along water (flow) direction.
Described delivery port is two or more.
Be connected with two or two above water control valve pipes on the described delivery port.
Described filter element is a filter membrane.
The filtering accuracy numerical value of described filter membrane is less than water control valve management and control water voids, the just maximum pore of water side.
Described filter membrane can be provided with multilayer.
Also be connected with water pipe between the delivery port of filtration cavity and the water control valve pipe.
The present invention also provides a kind of micro-irrigation device, the water control valve pipe that includes water container and be connected in water container and be communicated with the inner chamber of water container, described water control valve pipe comprises shell and through the inner core of shell, described shell is provided with water inlet and water side, described inner core is made of a branch of hydrophilic thread, hydrophilic thread extends to the water side by water inlet at least, and the mean gap to the small part inner core between the hydrophilic thread diminishes gradually along water (flow) direction.
Between described water container and water control valve pipe, also can be provided with the filtration cavity, filter cavity and be provided with water inlet and delivery port, described water inlet is communicated with water container, and inlet end is provided with filter element, and described delivery port is communicated with the water control valve pipe.
Description of drawings
The structural representation of Fig. 1 water control valve pipe of the present invention;
Fig. 2 water control valve pipe of the present invention water side part enlarged diagram;
The structural representation of hydrophilic thread in Fig. 3 water control valve pipe of the present invention;
Another structural representation of hydrophilic thread in Fig. 4 water control valve pipe of the present invention;
A structural representation again of hydrophilic thread in Fig. 5 water control valve pipe of the present invention.
Another structural representation of Fig. 6 water control valve pipe of the present invention;
The structural representation of Fig. 7 control head of the present invention;
Another structural representation of Fig. 8 control head of the present invention;
A structural representation again of Fig. 9 control head of the present invention;
The structural representation of Figure 10 micro-irrigation device of the present invention;
Another structural representation of Figure 11 micro-irrigation device of the present invention;
A structural representation again of Figure 12 micro-irrigation device of the present invention.
Embodiment
Embodiment 1
As shown in Figure 1, 2, the invention provides a kind of water control valve pipe 1, comprise shell 12 and the inner core 11 that is arranged in the shell 12, described shell 12 is provided with water inlet 121 and water side 122, described inner core 11 is made of a branch of hydrophilic thread, hydrophilic thread extends to water side 122 by water inlet 121 at least, and the mean gap to the small part inner core 11 between the hydrophilic thread diminishes gradually along water (flow) direction.
Water control valve pipe of the present invention can be connected in water container and constitute micro-irrigation device.So, only need will be placed into the soil with the micro-irrigation device of water control valve pipe, just can evenly send water to root system of plant and needn't lay water supply line, regularly replace water container then or regularly replenish moisture content to water container to get final product.
And the bore of each cross section is linearity by water inlet 121 gradually to water side 122 and diminishes on the shell 12, so that the mean gap between the hydrophilic thread in the shell 12 diminishes gradually along water (flow) direction.
Among the present invention, because the bore of each cross section is linearity by water inlet 121 gradually to water side 122 and diminishes on the described shell 12, and described inner core 11 is made of a branch of hydrophilic thread, therefore, distance in the water control valve pipe between any adjacent two hydrophilic threads all is to be water inlet 121 to water side 122 diminishing trend, shape in an angle each other, when enough hour of angle, spend to 30 degree scopes (present embodiment can be chosen in about 1 degree) as angle 0, apart from minor variations, will produce very big displacement at the adjacent hydrophilic thread of current tangential direction at current direction.Like this, when the water that contains impurity flow through this water control valve pipe, in one plane the impurity of originally may being blocked was just according to its size and its angle and being staggered in water, and was fixed on different cross section, less impurity also can flow through between its space of staggering smoothly, can not form " unnecessary obstruction ".
Further, as shown in Figure 1, the shell 12 of water control valve pipe 1 can be pyramidal structure among the present invention, is preferably conical structure; As another embodiment of the invention, shell 12 also can be helical structure etc.; Regardless of the structure of shell 12,, the situation that the cross section bore diminishes suddenly promptly do not occur and get final product as long as the bore of each cross section is linearity by water inlet 121 gradually to water side 122 and diminishes on the described shell 12.
Be that example describes with a branch of hydrophilic thread that in coniform shell, is provided with below.
As shown in Figure 3, on behalf of hydrophilic thread a-g, A-G represent impurity among the figure.
Current leniently hold (water inlet) to flow to narrow end (water side).
Impurity a is stuck between hydrophilic thread C, D, the G at first.
Impurity b is stuck between hydrophilic thread A, B, the C.
Impurity f is stuck between two hydrophilic thread D, the E, and its instability also might move down under certain condition; Also might fix, other impurity is progressively piled up on it, produces to put up a bridge.
Impurity d is stopped by impurity b from flowing between hydrophilic thread A, B, the C, impurity d then following current from flowing between hydrophilic thread B, C, the G between hydrophilic thread B, the C, because the variation of current is again between the hydrophilic thread A, the B that flow into the below of impurity b between hydrophilic thread B, the C, the C, and be stuck in the position of impurity b below.
Impurity e is from flowing between hydrophilic thread D, the F and being stuck between hydrophilic thread D, E, the F.
Impurity c is from flowing between hydrophilic thread D, E, the G between hydrophilic thread D, the E, and f stops by impurity, again by flowing between hydrophilic thread B, C, the G between hydrophilic thread C, the G and being stuck.
Impurity g is attached on the hydrophilic thread A, along with other impurity produces bridging on impurity g, might stop up gradually between the ABC at the locational passage of g point, but also have living space between itself and the impurity b.
If these seven impurity shops are long-pending in one plane as can be seen, just might be with its below path blockade.And in this anti-blocking structure, they because of self distinctive size and shape by automatic, three-dimensional scattering, making has a lot of spaces each other, water and all can freely pass through than small impurities.With impurity c place is example, and current flow through to come and can not be blocked by it from it, can have between hydrophilic thread B, the C on its next door, between hydrophilic thread C, the G, all can pass through between hydrophilic thread B, the G.
Among the present invention, distance between described any two adjacent hydrophilic threads is reduced to water side 22 gradually by water inlet 21, and its distance reaches minimum during to water outlet end 22, and the hole of formation also is a water control hole, it has determined the control outlet capacity of this water control valve pipe, and is the key factor that determines the water yield.Among the present invention, the maximum diameter of hole scope of the hole that each bar hydrophilic thread of these 22 places, water side forms is the 1-300 micron, and the maximum diameter of hole scope of the hole that each bar hydrophilic thread of 22 places, described water side forms is preferably the 2-100 micron.The maximum diameter of hole scope of this hole is the 2-80 micron more preferably.The maximum diameter of hole scope of this hole is more preferably 3-60 micron, 5-50 micron also.Maximum diameter of hole scope the best of this hole is the 1-50 micron.Like this, the moisture content that this water control valve pipe not only can provide plant to draw also can more effectively reduce the influence of pressure variation to discharge.
The mensuration of maximum diameter of hole can adopt bubble method to carry out with reference to national standard in the present invention.With hydrophilic wire harness is that the maximum diameter of hole of the water control valve pipe of inner core equals the maximum pore that this hydrophilic wire harness forms between each bar hydrophilic thread of water side; And this water control valve pipe is when releasing water in soil, and other smaller aperture due is also brought into play certain effect.
Further, hydrophilic thread described in the present invention may extend into 122 outsides, water side, and the water in the water control valve pipe can be spread out on its surface because its hydrophily, when its with after soil contacts, water will spread out in soil, reaches better water supply purpose.
Among the present invention, too near in order to prevent hydrophilic thread some partial distance in shell 12, so that being adjacent to and resulting in blockage, the hydrophilic thread in the described inner core 11 can be the thickness (not shown) that is crisscross arranged, to reach the effect that further prevents or reduce obstruction.
Among the present invention, for further preventing or reducing obstruction, as the another kind of embodiment of present embodiment, also can be on described each bar hydrophilic thread horizontal and/or oblique some grooves and/or the fin of being provided with; Shown in Fig. 4,5, described hydrophilic thread also can be and curls the shape setting or wear beading 13 etc. on described hydrophilic thread.
Because the water control valve pipe range phase is embedded in the soil, microorganisms such as a large amount of bacterium fungies are multiplied easily with water control valve pipe plug plug in water control valve pipe inside, therefore, can add antibacterial agent in this bundle hydrophilic thread among the present invention, make it to have antibacterial functions, can effectively prevent bacterium multiplying and stop up the water control valve pipe in the water control valve pipe.Also can decompose the material of microorganism,, the microorganism corpse of inflow can progressively be decomposed, reduce the possibility that microorganism is stopped up as TO2 with adding in the hydrophilic thread.
Further, the water in water receiver and the water-supply-pipe also can be placed for a long time in the open air, flows slowly, and therefore the multiple microorganism that wherein also grows easily, can join bactericide in water receiver and the water-supply-pipe, can reach antibacterial anti-blocking effect equally.
Further, among the present invention, water side 122 heads of described shell 12 are made by the material that can decompose gradually, setting-up time length, after head stopped up gradually, its head material decomposed disengaging gradually, this is located former bound hydrophilic thread and is loosened, it is big that space in the hydrophilic thread becomes, and the water control valve pipe can continue again to supply water, and reduces the purpose of stopping up to reach.
Embodiment 2
Principle and the structure of present embodiment and embodiment 1 are basic identical, its difference is as shown in Figure 6, the shell 12 of water control valve pipe 1 can be cylindrical structural, hydrophilic thread extends (not shown) outside the water inlet 121, and the mean gap between the hydrophilic thread outside described this water inlet 121 diminishes gradually along water (flow) direction.In the present embodiment, owing to extend hydrophilic thread outside the water inlet 121, diminish gradually, therefore, can reach the effect identical equally as embodiment when current are out-of-date along the mean gap of water (flow) direction.
Embodiment 3
As shown in Figure 7, the present invention also provides a kind of control head, include and filter cavity 2, filter cavity 2 and be provided with water inlet 21 and at least one delivery port 22, the bore of water inlet 21 is greater than the bore of delivery port 22, described water inlet 21 is provided with filter element 23, be connected with at least one aforesaid water control valve pipe 1 on the described delivery port 22, described water control valve pipe 1 comprises shell 12 and through the inner core 11 of shell 12, described shell 12 is provided with water inlet 121 and water side 122, described inner core 11 is made of a branch of hydrophilic thread, and hydrophilic thread extends to water side 122 by water inlet 121 at least, and the mean gap to the small part inner core 11 between the hydrophilic thread diminishes gradually along water (flow) direction.
In actual applications, in order to prevent the former of water quality thereby to make water control valve pipe 1 blocked, therefore,, a filter is set again, so that reach purpose of the present invention better at the front end of water control valve pipe 1.
Further, as shown in Figure 8, the delivery port 22 of described filtration cavity 2 is that two or two are with (being provided with three), to connect a plurality of water control valve pipes 1 among the figure.
As the another kind of embodiment of present embodiment, as shown in Figure 9, also be connected with water pipe 3 between the delivery port 22 of filtration cavity 2 and the water control valve pipe 1; Be connected with two or two above water control valve pipes 1 on the described water pipe 3.
In the present embodiment, as shown in the figure, described filter element 23 is a filter membrane; And described filter membrane can be provided with multilayer, to improve filter effect.
Among the present invention, the filtering accuracy numerical value of described filter membrane can be less than the water control hole crack of mean gap between the hydrophilic thread of water control valve pipe 1 water side 122 or water control valve pipe water side.According to the common idea of people: the filtration hole of filter membrane is too little to be difficult to make water to pass through; Especially the filter membrane hole is less than the maximum diameter of hole of water control valve pipe, the capillary force of filter membrane will be greater than the capillary force of water control valve pipe so, therefore the water control valve pipe also just can't be attracted to delivery port by water inlet by filter membrane with water automatically, also just can't realize by the capillary force automatic irrigation.But, in the present embodiment, filtering accuracy numerical value is meant the maximum contaminant size that filter membrane can pass through, and just can be implemented in the more macroporous filter membrane by filtering the less filtering accuracy numerical value of acquisition layer by layer by depth-type filtration, as filtering materials such as felts, it filters hole and just is far longer than its filtering accuracy numerical value; Promptly use the surface filtration membrane material, the filter membrane hole is less than the water control hole crack of water control valve pipe, because filter membrane is to be fully immersed in the water, the surface tension that does not have gas-liquid interface to form on it, just there is not capillary force yet, though therefore hole is very little, as long as the pressure difference of filter membrane both sides, water will flow.The hydrophilic thread of water control valve pipe 1 water side 122 extends outside this water side 122 and in soil and contacts, because the water sorption of soil and hydrophilic thread, make the pressure of the pressure of filter membrane water outlet side, therefore, also can make water more easily flow through filter membrane less than its influent side.Moreover water control valve pipe water yield is seldom, though therefore the filter membrane area is very little, water amount is very low, can satisfy the needs of water control valve pipe also.Find that through experiment the water control valve pipe cooperates with the best hole of filter membrane and is: water control valve pore crack is between 1 micron-50 microns; The hole of filter membrane between 0.1 micron-5 microns or filtering accuracy below 5 microns.
Embodiment 4
Shown in Figure 10,11, a kind of micro-irrigation device, the aforementioned water control valve pipe 1 that includes water container 4 and be connected in water container 4 and be communicated with the inner chamber of water container 4, described water control valve pipe 1 comprises shell 12 and through the inner core 11 of shell 12, described shell 12 is provided with water inlet 121 and water side 122, described inner core 11 is made of a branch of hydrophilic thread, hydrophilic thread extends to water side 122 by water inlet 121 at least, and the mean gap to the small part inner core 11 between the hydrophilic thread diminishes gradually along water (flow) direction.
In the present embodiment, as shown in figure 10, be the operating position of a water container 4 and a conical water control valve pipe jointing; Figure 11 then is the situation that a water container 4 and a cylindrical water control valve pipe jointing use.
As shown in the figure, also be provided with water filling port 41 on the described micro-irrigation device, after the water filling water filling port 41 sealed.This micro-irrigation device can be embedded in plant roots and carry out infiltrating irrigation.Owing to adopt aforesaid water control valve pipe 1 in this micro-irrigation device, therefore can prevent that water control valve pipe 1 from use stopping up.
Further, as shown in figure 12, between described water container 4 and water control valve pipe 1, also can be provided with aforesaid filtration cavity 2,, filter cavity 2 and be provided with water inlet 21 and delivery port 22 to improve its filter effect, the bore of water inlet 21 is greater than the bore of delivery port 22, described water inlet 21 is communicated with water container 4, and water inlet 21 ends are provided with filter element 23, and described delivery port 22 is communicated with water control valve pipe 1.
Other effect of present embodiment is identical with embodiment 1, does not repeat them here.
Claims (44)
1. water control valve pipe, comprise shell and through the inner core of shell, it is characterized in that, described shell is provided with water inlet and water side, described inner core is made of a branch of hydrophilic thread, hydrophilic thread extends to the water side by water inlet at least, and the mean gap to the small part inner core between the hydrophilic thread diminishes gradually along water (flow) direction.
2. water control valve pipe as claimed in claim 1 is characterized in that, described shell is a column structure, and hydrophilic thread extends outside the water inlet, and the mean gap between the hydrophilic thread outside described this water inlet diminishes gradually along water (flow) direction.
3. water control valve pipe as claimed in claim 1 is characterized in that, the bore of each cross section is linearity by water inlet gradually to the water side and diminishes on the shell, so that the mean gap between the hydrophilic thread in the shell diminishes gradually along water (flow) direction.
4. water control valve pipe as claimed in claim 3 is characterized in that, described shell is taper or helical structure.
5. water control valve pipe as claimed in claim 4 is characterized in that, the bevel angle of described conical shell is that 0 degree is to 30 degree.
6. as each described water control valve pipe of claim 1 to 5, it is characterized in that described hydrophilic thread may extend into outside the water side.
7. as each described water control valve pipe of claim 1 to 5, it is characterized in that the maximum diameter of hole scope that the hole of each bar hydrophilic thread formation is located in this water side is the 1-300 micron.
8. as each described water control valve pipe of claim 1 to 5, it is characterized in that the maximum diameter of hole scope that the hole of each bar hydrophilic thread formation is located in this water side is the 1-50 micron.
9. as each described water control valve pipe of claim 1 to 5, it is characterized in that the hydrophilic thread in the described inner core can be thickness and is crisscross arranged.
10. water control valve pipe as claimed in claim 1 is characterized in that, but some grooves of horizontally set or fin on described each bar hydrophilic thread; Perhaps oblique some grooves or the fin of being provided with; Perhaps laterally and oblique some grooves or the fin of all being provided with.
11., it is characterized in that described hydrophilic thread can be the shape setting of curling as each described water control valve pipe of claim 1 to 5.
12. as each described water control valve pipe of claim 1 to 5, it is characterized in that, can be equipped with beading on the described hydrophilic thread.
13. as each described water control valve pipe of claim 1 to 5, it is characterized in that, add antibacterial agent in described this bundle hydrophilic thread.
14. control head, it is characterized in that, include the filtration cavity, filter cavity and be provided with water inlet and at least one delivery port, described water inlet is provided with filter element, be connected with at least one water control valve pipe on the described delivery port, described water control valve pipe comprises shell and through the inner core of shell, described shell is provided with water inlet and water side, described inner core is made of a branch of hydrophilic thread, hydrophilic thread extends to the water side by water inlet at least, and the mean gap to the small part inner core between the hydrophilic thread diminishes gradually along water (flow) direction.
15. control head as claimed in claim 14 is characterized in that, described delivery port is two or more.
16. as claim 14 or 15 described control heads, it is characterized in that, be connected with two or two above water control valve pipes on the described delivery port.
17. control head as claimed in claim 14 is characterized in that, described filter element is a filter membrane.
18. control head as claimed in claim 17 is characterized in that, the filtering accuracy numerical value of described filter membrane is less than maximum diameter of hole, water control valve pipe water side numerical value.
19. control head as claimed in claim 18 is characterized in that, the maximum diameter of hole scope of locating the hole that each bar hydrophilic thread forms when the water side is during at the 1-50 micron, and the hole of filter membrane is between 0.1 micron-5 microns.
20. control head as claimed in claim 17 is characterized in that described filter membrane can be provided with multilayer.
21. control head as claimed in claim 14 is characterized in that, the shell of described water control valve pipe is a column structure, and hydrophilic thread extends outside the water inlet, and the mean gap between the hydrophilic thread outside described this water inlet diminishes gradually along water (flow) direction.
22. control head as claimed in claim 14 is characterized in that, the bore of each cross section is linearity by water inlet gradually to the water side and diminishes on the shell, and the mean gap between the hydrophilic thread in the shell diminishes gradually along water (flow) direction.
23. control head as claimed in claim 21 is characterized in that, described shell is taper or helical structure.
24. control head as claimed in claim 22 is characterized in that, the bevel angle of described conical shell is that 0 degree is to 30 degree.
25. control head as claimed in claim 14 is characterized in that, but described hydrophilic line extends to outside the water side.
26. control head as claimed in claim 14 is characterized in that, the maximum diameter of hole scope that the hole of each bar hydrophilic thread formation is located in this water side is the 1-300 micron.
27. control head as claimed in claim 14 is characterized in that, the maximum diameter of hole scope that the hole of each bar hydrophilic thread formation is located in this water side is the 1-50 micron.
28. control head as claimed in claim 14 is characterized in that the hydrophilic thread in the described inner core can be thickness and is crisscross arranged.
29. control head as claimed in claim 14 is characterized in that, but some grooves of horizontally set or fin on described each bar hydrophilic thread; Perhaps oblique some grooves or the fin of being provided with; Perhaps laterally and oblique some grooves or the fin of all being provided with.
30. control head as claimed in claim 14 is characterized in that, described hydrophilic thread can be the shape setting of curling.
31. control head as claimed in claim 14 is characterized in that, can be equipped with beading on the described hydrophilic thread.
32. control head as claimed in claim 14 is characterized in that, adds antibacterial agent in described this bundle hydrophilic thread.
33. control head as claimed in claim 14 is characterized in that, also is connected with water pipe between the delivery port of filtration cavity and the water control valve pipe.
34. micro-irrigation device, the water control valve pipe that includes water container and be connected in water container and be communicated with the inner chamber of water container, described water control valve pipe comprises shell and through the inner core of shell, it is characterized in that: described shell is provided with water inlet and water side, described inner core is made of a branch of hydrophilic thread, hydrophilic thread extends to the water side by water inlet at least, and the mean gap to the small part inner core between the hydrophilic thread diminishes gradually along water (flow) direction.
35. micro-irrigation device as claimed in claim 34 is characterized in that, the bore of each cross section is linearity by water inlet gradually to the water side and diminishes on the described water control valve pipe shell, and the mean gap between the hydrophilic thread in the shell diminishes gradually along water (flow) direction.
36. micro-irrigation device as claimed in claim 35 is characterized in that, described shell is taper or helical structure.
37. micro-irrigation device as claimed in claim 36 is characterized in that, the bevel angle of described conical shell is that 0 degree is to 30 degree.
38., it is characterized in that the maximum diameter of hole scope that the hole of each bar hydrophilic thread formation is located in this water side is the 1-300 micron as each described micro-irrigation device of claim 34 to 37.
39., it is characterized in that the maximum diameter of hole scope that the hole of each bar hydrophilic thread formation is located in this water side is the 1-50 micron as each described micro-irrigation device of claim 34 to 37.
40. as each described micro-irrigation device of claim 34 to 37, it is characterized in that, between described water container and water control valve pipe, also can be provided with the filtration cavity, filter cavity and be provided with water inlet and delivery port, described water inlet is communicated with water container, and inlet end is provided with filter element, and described delivery port is communicated with the water control valve pipe.
41. micro-irrigation device as claimed in claim 40 is characterized in that, described filter element is a filter membrane.
42. micro-irrigation device as claimed in claim 41 is characterized in that, the filtering accuracy numerical value of described filter membrane is less than maximum diameter of hole, water control valve pipe water side numerical value.
43. micro-irrigation device as claimed in claim 42 is characterized in that, the maximum diameter of hole scope of locating the hole that each bar hydrophilic thread forms when the water side is during at the 1-50 micron, and the hole of filter membrane is between 0.1 micron-5 microns.
44. micro-irrigation device as claimed in claim 41 is characterized in that, described filter membrane can be provided with multilayer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2005/000437 WO2006102797A1 (en) | 2005-04-01 | 2005-04-01 | Water-controlling valve pipe, water-controlling head and microirrigator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101141875A CN101141875A (en) | 2008-03-12 |
| CN101141875B true CN101141875B (en) | 2010-07-28 |
Family
ID=37052941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800492005A Expired - Fee Related CN101141875B (en) | 2005-04-01 | 2005-04-01 | Water-controlled valve tube, water-controlled head and micro-irrigator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101141875B (en) |
| WO (1) | WO2006102797A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2462761T3 (en) * | 2009-09-29 | 2014-05-26 | Jun Zhu | Filtration irrigation device |
| CN107926662B (en) * | 2017-12-26 | 2023-03-21 | 贵州大学 | Micro-irrigation equipment for agricultural irrigation and drainage |
| NL1042822B1 (en) * | 2018-04-16 | 2019-10-23 | Own Greens Holding B V | Growing system comprising growing pots provided with a filling channel extending upwards from a bottom and / or side wall |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0403346A1 (en) * | 1989-06-12 | 1990-12-19 | Isover Saint-Gobain | Sub-irrigation sheet |
| CN1253720A (en) * | 1998-11-12 | 2000-05-24 | 中国科学院化学研究所 | Block-resisting infiltrating irrigation equipment |
| CN1253719A (en) * | 1998-11-12 | 2000-05-24 | 中国科学院化学研究所 | Trickle irrigation equipment |
| CN1475105A (en) * | 2003-07-10 | 2004-02-18 | 刘连山 | Capillary infiltrating irrigation device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1123283C (en) * | 1998-11-05 | 2003-10-08 | 卢锦峰 | Method for preventing drip head from being blocked with fluctuation and anti-blocking drip head |
| JP2000140521A (en) * | 1998-11-05 | 2000-05-23 | Nippon Solid Co Ltd | Siphon functioning body |
-
2005
- 2005-04-01 CN CN2005800492005A patent/CN101141875B/en not_active Expired - Fee Related
- 2005-04-01 WO PCT/CN2005/000437 patent/WO2006102797A1/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0403346A1 (en) * | 1989-06-12 | 1990-12-19 | Isover Saint-Gobain | Sub-irrigation sheet |
| CN1253720A (en) * | 1998-11-12 | 2000-05-24 | 中国科学院化学研究所 | Block-resisting infiltrating irrigation equipment |
| CN1253719A (en) * | 1998-11-12 | 2000-05-24 | 中国科学院化学研究所 | Trickle irrigation equipment |
| CN1475105A (en) * | 2003-07-10 | 2004-02-18 | 刘连山 | Capillary infiltrating irrigation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101141875A (en) | 2008-03-12 |
| WO2006102797A1 (en) | 2006-10-05 |
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