CN105340692A - Micropore ceramic pressure compensation type drip irrigation emitter - Google Patents
Micropore ceramic pressure compensation type drip irrigation emitter Download PDFInfo
- Publication number
- CN105340692A CN105340692A CN201510706601.9A CN201510706601A CN105340692A CN 105340692 A CN105340692 A CN 105340692A CN 201510706601 A CN201510706601 A CN 201510706601A CN 105340692 A CN105340692 A CN 105340692A
- Authority
- CN
- China
- Prior art keywords
- pressure compensation
- pedestal
- water
- micropore ceramics
- irrigator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
- A01G25/023—Dispensing fittings for drip irrigation, e.g. drippers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Invalid Beds And Related Equipment (AREA)
- Nozzles (AREA)
Abstract
The present invention discloses a micropore ceramic pressure compensation type drip irrigation emitter. The micropore ceramic pressure compensation type drip irrigation emitter comprises a substrate, the substrate is internally provided with a hollow cavity, a cavity housing covering the substrate is arranged in a detachable manner on a top part of the substrate and is provided with a water inlet, the substrate is provided with a water outlet with the same shaft axis as the water inlet, a water seepage sheet is arranged in the hollow cavity between the water inlet and the water outlet, pores are distributed inside the water seepage sheet, and a water flow enters from the water inlet, is then filtered by the water seepage sheet and flows out of the substrate from the water outlet. With adoption of the micropore ceramic pressure compensation type drip irrigation emitter, the problem of irrigation emitter water yield inconformity caused by waterhead changes can be well solved, and the problem that manufacturing deviation impacts a lot on irrigation emitter water yield is greatly reduced. A pressure compensation range of the emitter is 3-24 m, and by using micropore ceramic water seepage sheets with different porosities and combining with different pressure compensation gaskets, different water yields of the emitter are realized within a range of 1-15 L/h, and the emitter can well adapt to pipeline pressure changes, thereby ensuring plant irrigation uniformity.
Description
Technical field
The invention belongs to dry land agriculture water-saving irrigation technique field, relate to a kind of micropore ceramics pressure compensated drip irrigator, for solving the Irrigation Problems of drought-hit area crop, being specially adapted to the Irrigation Problems solving mountainous architecture woods.
Background technology
Slight irrigation is a kind of irrigation technique of economizing on water very much, extensively adopts in the irrigation of drought-hit area crop.Need water to require and irrigation program for Different Crop, the irrigator of exploitation excellent performance is the key of micro irrigation technology development, and wherein uniformity of irrigation water appilcation is as the important indicator weighing irrigator performance, has become the problem of overriding concern during irrigator design.
When irrigating land for growing field crops and economic crops, along with the increase of irrigation conduit frictional head loss, the operating pressure being arranged on the irrigator of pipeline diverse location reduces gradually, thus the water yield of irrigator is reduced gradually, cause the irrigation quantity between Different Crop widely different, have a strong impact on the growth of crop.When irrigating mountainous architecture woods, because mountain region physical features is complicated, the gradient is large, the change of water level amplitude in irrigation conduit is very large, is positioned at the more obvious of the irrigator water yield difference performance of different physical features.In order to ensure that each strain crop can obtain intimate identical irrigation quantity, pressure compensated thought must be introduced when the design of irrigator.
The operation principle of the pressure-compensated irrigator existed on the market is at present substantially identical, is on the basis of labyrinth flow-path structure, mix pressure compensation pad realize mostly.201110411698.2) and " a kind of High-flow pressure-compensateddrip drip irrigation emitter " (201210006948.9) patent " a kind of underground pressure compensation fountain root irrigation machine " (application number:, by labyrinth flow-path and pressure compensation pad with the use of, elastomeric pad in irrigator can change deflection according to the variation in water pressure of pipeline, to reach the area of passage changing irrigation water, realize pressure regulation effect, the current after pressure regulation flow out by after the further energy dissipating of labyrinth flow-path again.This irrigator can reduce the impact of pipeline change of water level on irrigator water yield within the scope of certain head.But the water quality requirement of the irrigator of the above-mentioned type to irrigation water is higher, otherwise the solid particulate matter in irrigation water very easily deposits in the labyrinth flow-path of irrigator, causes irrigator to block.In addition, the pressure regulation energy dissipating of irrigator to irrigation water of the above-mentioned type relies on the structure of irrigator to realize completely, in the preparation and assembling process of irrigator, manufacture deviation will have a strong impact on the uniformity of irrigation water appilcation of irrigator, even if when head is identical, manufacture deviation also can cause irrigator water yield inconsistent.
Summary of the invention
For above-mentioned problems of the prior art, the object of the invention is to, provide that a kind of anti-blockage capability is strong, energy-dissipating structure is simple, manufacture deviation is little, and there is the micropore ceramics pressure compensated drip irrigator of pressure compensation.This irrigator is fabricated structure, utilizes the seepage of water of micropore ceramics to carry out energy dissipating to irrigation water, and coordinate pressure compensation pad to regulate the water yield of irrigator, the water yield that can realize irrigator under different head is consistent.The mountain region be particularly suitable for change of water level amplitude is larger is irrigated crop.
In order to realize above-mentioned task, the present invention by the following technical solutions:
A kind of micropore ceramics pressure compensated drip irrigator, comprise pedestal, base interior is provided with cavity, be provided with the chamber shell of spiral-lock on pedestal pedestal top side detachable, chamber shell is provided with inlet opening, pedestal is provided with the apopore with inlet opening coaxial inner conductor, in the cavity between inlet opening and apopore, is provided with infiltration sheet, be distributed with hole in infiltration sheet, current flow out pedestal from apopore after inlet opening enters cavity after the filtration of the sheet that seeps water.
Further, described infiltration sheet adopts micropore ceramics infiltration sheet, and the porosity of infiltration sheet is 40% ~ 60%, and the diameter of hole is 1 ~ 2 micron.
Further, be provided with flexible pressure compensation pad in described cavity, on pressure compensation pad bottom support pedestal in the cavities, top connects with infiltration sheet;
Pressure compensation pad is curved structure, and the circumference of pressure compensation pad is circular configuration, and with the through hole of reducing in the middle part of it, the internal diameter variation tendency of through hole is: reduced gradually from the axially internal diameter of pressure compensation pad top to bottom and finally becoming consistent.
Further, the cambered surface function of the through hole internal diameter changing unit of described pressure compensation pad is quadratic function or cubic function.
Further, described cambered surface function is:
Y=0.03x
2+ 0.05x or y=0.005x
3+ 0.03x
2+ 0.01x
Wherein the implication of x and y is:
Pressure compensation pad is axially cut off from it, the face of cutting off is symmetrical two parts, get its part, with the tip edges in the face of cutting off for the center of circle, set up coordinate system, the x-axis of coordinate system is the direction perpendicular to pressure compensation pad axis, and y-axis is the direction being parallel to pressure compensation pad axis.
Further, described pedestal top is provided with sidewall along the circumference of pedestal, the cavity described in External Internal is formed; The center at pedestal top is provided with boss, and the part looping groove between boss and sidewall, described pressure compensation pad is arranged in cannelure.
Further, described apopore runs through the bottom surface of pedestal from boss end face, and the diameter of apopore is greater than the diameter of inlet opening.
Further, the longitudinal cross-section of described chamber shell is in falling " recessed " shape, the shell inner position near shell top, chamber in chamber is configured for along projection symmetrical near the direction of inlet opening axis the limiting card limiting infiltration sheet position, the top of described infiltration sheet is positioned at the below of limiting card, forms cushion chamber thus between the top and inlet opening of infiltration sheet.
Further, the outside of described pedestal sidewall is circumferentially enclosed around cutting one and is formed seat stand, described chamber shell spiral-lock on pedestal after, chamber shell external diameter is consistent with pedestal external diameter.
Further, the top of described chamber shell is provided with link, and the outer wall of link is provided with connector, and the axial cross section of connector is trapezoidal; The longitudinal cross-section of link and junction, shell top, chamber is one section of circular arc, and described inlet opening is from axially penetrating link.
Operation principle of the present invention is: the irrigation water in hollow billet is first entered the cushion chamber on irrigator internal cavity top by inlet opening, then the duct via micropore ceramics infiltration sheet inside is oozed downwards, due to frictional force and the capillary force in duct, the flow velocity of current in duct to seep water the change of hydraulic pressure above sheet and different with micropore ceramics, micropore ceramics infiltration sheet lower cavity is normal pressure, so micropore ceramics infiltration sheet upper and lower can exist pressure reduction;
A () is when the intake pressure of irrigator is less, although the flow velocity of irrigation water in micropore ceramics infiltration sheet is slower, but because micropore ceramics infiltration sheet upper and lower pressure reduction is less, the pressure that pressure compensation pad is subject to micropore ceramics infiltration sheet is less, be out of shape less, less with the contact area of pressure compensation pad below micropore ceramics infiltration sheet, the infiltration area of irrigation water is larger;
B () is when the intake pressure of irrigator increases, the flow velocity of irrigation water in micropore ceramics infiltration sheet accelerates, but the sheet of micropore ceramics infiltration simultaneously upper and lower pressure reduction increases, the pressure that pressure compensation pad is subject to micropore ceramics infiltration sheet becomes large, distortion increases, increase with the contact area of elastomeric pad below micropore ceramics infiltration sheet, the infiltration area of irrigation water reduces, thus when ensure that pressure increase, the water yield of irrigator is constant;
C (), when the intake pressure of irrigator reduces, above-mentioned all changes are reversed, and still can ensure that the water yield of irrigator is constant.Generally speaking, the water yield uniformity of micropore ceramics pressure compensated drip irrigator becomes inverse change to realize with infiltration area by the flow velocity of irrigation water at micropore ceramics infiltration sheet.
The present invention has following technical characterstic:
1. the seepage of water that make use of micropore ceramics carries out energy dissipating to irrigation water, and energy-dissipating structure is simple, and energy dissipating good stability, reduces the impact of manufacture deviation on irrigator uniformity of irrigation water appilcation.
2. pressure compensation pad deflection can intelligence regulate according to the intake pressure of irrigator, thus realize the object of the infiltration area automatically regulating micropore ceramics infiltration sheet according to variation in water pressure, reduce further the impact of Manufacture variation on uniformity of irrigation water appilcation.
3. the aperture of micropore ceramics infiltration sheet is micron order, and much smaller than the particle diameter of irrigating impurities in water, it is outside that impurity effectively can be blocked in micropore ceramics infiltration sheet, effectively improves the resistance against physical blocking ability of irrigator; The installation procedure of irrigator is simple, and pressure compensation is interval large, can adapt to change of water level by a larger margin.
4. the present invention's sheet that seeped water by micropore ceramics is combined with pressure compensation pad, can solve the problem that change of water level causes irrigator water yield inconsistent, and the seepage of water that this irrigator make use of micropore ceramics carries out energy dissipating to irrigation water, reduce manufacture deviation greatly to problems such as the impact of irrigator water yield are larger.Experiment through applicant proves: the pressure compensation interval of this irrigator is 3 ~ 24m, by using the micropore ceramics infiltration sheet of different porosities, and coordinate the pressure compensation pad with different hardness and cambered surface function, irrigator realizes different water yields within the scope of 1 ~ 15L/h, and well can adapt to the change of pipeline pressure, ensure that the uniformity of pouring water of crop.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is longitudinal cross-sectional schematic of cavity portion;
Fig. 3 (a) is the structural representation of micropore ceramics infiltration sheet;
Fig. 3 (b) is the micro-structure diagram (amplifying 10000 times) of micropore ceramics infiltration sheet;
Fig. 4 (a) is the structural representation of pressure compensation pad;
The function curve design drawing that Fig. 4 (b) is pressure compensation pad;
Fig. 5 is longitudinal cross-sectional schematic of pedestal;
Fig. 6 (a) is the working state schematic representation of irrigator when head is less;
Fig. 6 (b) is the working state schematic representation of irrigator when head is larger;
Fig. 7 is the pressure flow curve map of irrigator;
Number in the figure represents: 1-inlet opening, 2-infiltration sheet, 3-pressure compensation pad, 4-cannelure, 5-boss, 6-apopore, 7-link, 8-limiting card, 9-chamber shell, 10-sidewall, 11-pedestal, 12-seat stand, 13-cushion chamber.
Embodiment
Defer to technique scheme, as shown in Figure 1, this gives a kind of micropore ceramics pressure compensated drip irrigator, comprise pedestal 11, pedestal 11 inside is provided with cavity, be provided with spiral-lock chamber shell 9 on the base 11 pedestal 11 top side detachable, chamber shell 9 is provided with inlet opening 1, pedestal 11 is provided with the apopore 6 with inlet opening 1 coaxial inner conductor, the sheet 2 that seeps water is provided with in cavity between inlet opening 1 and apopore 6, be distributed with hole in infiltration sheet 2, current flow out pedestal 11 from apopore 6 after inlet opening 1 enters cavity after the filtration of the sheet 2 that seeps water.
What form agent structure of the present invention is pedestal 11 and chamber shell 9.Pedestal 11 plays hard-wired effect, and provides cavity therein.Cavity has multiple effect, and the first is for installing infiltration sheet 2, and its two filter space being to provide current, for slow releasing function is played in the outflow of current.Infiltration sheet 2 in this programme, adopts infiltration sheet 2 structure of porous.Infiltration sheet 2 inside is distributed with multiple hole erratically, and the existence of these holes allows current to pass through in infiltration sheet 2, penetrates into below, play a role in filtering to the impurity in current from the top of infiltration sheet 2.Because hole is wherein more, and distribute in a jumble, this erratic distribution mode, what extend current flows through path, while more thorough, effective removing is carried out to impurity, also make impurity be not easy to block pore channel, improve the actual practical value of irrigator.
The infiltration sheet 2 adopted in the present embodiment is micropore ceramics infiltration sheet, its diameter is 30mm, and the margin of tolerance is-0.1 ~-0.2mm, and micropore ceramics infiltration sheet surrounded surface is smooth, with ensure irrigator operationally micropore ceramics infiltration sheet can move freely, do not blocked by pedestal 11 inwall.Micropore ceramics infiltration sheet is thin discs structure, can be formed by the micropore ceramics materials processing with micron pore size, and have the duct of the micropore formation be interconnected in a large number in this micropore ceramics infiltration sheet, irrigation water can flow in these ducts.Due to frictional force and the capillary force in duct, the flowing velocity of irrigation water in duct is slow, therefore can carry out energy dissipating to having pressure irrigation water.
According to the designed outlet water requirement of irrigator, the porosity of micropore ceramics is 40 ~ 60% adjustable, and in the present embodiment, the porosity of micropore ceramics infiltration sheet is 47%.The even structure of micropore ceramics, does not have defect, and average pore size is 1 ~ 2 micron, the solid impurity in irrigation water can be filtered fully, significantly improves the anti-blocking of irrigator.Between each hole, there is extraordinary connectedness in micropore ceramics infiltration sheet, provide sufficient penetrating passage.By test, the bending strength of micropore ceramics infiltration sheet is 80 ~ 120MPa, ensure that the dependability of irrigator and longer service life.
In order to make infiltration sheet 2 work better, be provided with flexible pressure compensation pad 3 in this programme in the cavities, on pressure compensation pad 3 bottom support pedestal 11 in the cavities, top connects with infiltration sheet 2; Pressure compensation pad 3 is curved structure, the circumference of pressure compensation pad 3 is circular configuration, with the through hole of reducing in the middle part of it, the internal diameter variation tendency of through hole is: reduced gradually from the axially internal diameter of pressure compensation pad 3 top to bottom and finally becoming consistent.
Fig. 4 is the longitudinally cutting schematic diagram of pressure compensation pad 3, and as can be seen from the figure, the pressure compensation pad 3 of this programme, its contour structures is similar from funnel but different, and entirety is curved structure.Pressure compensation pad 3 can be regarded as and increased gradually by one end external diameter of one section of circular pipe and the structure that formed, and the trend (slope) increased is more and more less.Change an angle, pressure compensation pad 3 can be regarded as the motion track formation vertically of an annulus, when annulus moves, internal diameter (through hole internal diameter) is also in change, from top to the direction of bottom, internal diameter reduces gradually, and the trend reduced is increasing, after internal diameter reduces one section, become again consistent and extend a segment distance, the curved structure described in formation.On pressure compensation pad 3, the circumference of any position, place is circle.
Pressure compensation pad 3 in this programme, adopt silica gel material, hardness is 40 ~ 50 degree, and the top external diameter of pressure compensation pad 3 is 30mm, and the margin of tolerance is-0.1 ~-0.2mm, ensures the impact of pressure compensation pad 3 when being out of shape not by pedestal 11 inwall frictional force.Pressure compensation pad 3 lower inner diameter is 8mm, coordinates with the sidewall 10 of pressure compensation pad 3 fixing lug boss 5 of pedestal 11 inside.Pressure compensation pad 3 has special cambered surface, to ensure that it fully can contact with the micropore ceramics sheet that seeps water when compressive deformation.
More excellent a kind of selection mode is, if represent the through hole variation tendency of pressure compensation pad 3 with function, so as shown in Fig. 4 (b), the cambered surface function of the through hole internal diameter changing unit of pressure compensation pad 3 is quadratic function or cubic function.Here cambered surface function refers to the function (not comprising internal diameter uniform portion) of pressure compensation pad 3 inside internal diameter changing unit in the axial direction.
The hardness of pressure compensation pad 3 and cambered surface function are selected according to the porosity of micropore ceramics infiltration sheet.Such as: when the porosity of micropore ceramics infiltration sheet is 47%, select the shore hardness of pressure compensation pad 3 to be 45 degree, cambered surface function is: y=0.03x
2+ 0.05x;
When the porosity of micropore ceramics infiltration sheet is 51%, select the shore hardness of pressure compensation pad 3 to be 50 degree, cambered surface function is y=0.005x
3+ 0.03x
2+ 0.01x;
Wherein the implication of x and y is, as shown in Fig. 4 (b):
Pressure compensation pad 3 is axially cut off from it, the face of cutting off is symmetrical two parts, get its part (left-half in such as this example), with the tip edges in the face of cutting off for the center of circle, set up coordinate system, the x-axis of coordinate system is the direction perpendicular to pressure compensation pad 3 axis, and y-axis is the direction being parallel to pressure compensation pad 3 axis, and the parameter x of quadratic function and cubic function and y is corresponding with the coordinate in reference axis.Example given in Fig. 4 (b), what select be cambered surface function is y=0.03x
2the pressure compensation pad 3 of+0.05x.The outside diameter of pressure compensation pad 3 is more smaller than pedestal 11 internal diameter, ensures the impact of pressure compensation pad 3 when being out of shape not by pedestal 11 inwall frictional force.
Pedestal 11 adopts polyethylene material, and a kind of concrete structure of pedestal 11 is, as shown in Figure 5, pedestal 11 top is provided with sidewall 10 along the circumference of pedestal 11, the cavity described in External Internal is formed; The center at pedestal 11 top is provided with boss 5, and boss 5 external diameter is 8mm, and the margin of tolerance is+0.2 ~+0.3mm; Part looping groove 4 between boss 5 and sidewall 10, described pressure compensation pad 3 is arranged in cannelure 4.
The bottom diameter (internal diameter uniform portion) of pressure compensation pad 3 is identical with the external diameter of boss 5, and the lower end of pressure compensation pad 3 can be sleeved on boss 5, plays effect that is fixing, limiting pressure compensate gasket 3.Pressure compensation pad 3 is elasticity and fluid-tight structure, can be out of shape under the effect of the pressure.Due to the unique texture that pressure compensation pad 3 is above-mentioned, pressure compensation pad 3 deformable when distortion is subject to infiltration sheet 2 pressure is also partly attached on pressure compensation pad 3, plays the effect reducing pressure compensation pad 3 flow surface.Apopore 6 runs through the bottom surface of pedestal 11 from boss 5 end face, and the diameter of apopore 6 is greater than the diameter of inlet opening 1, like this can the relative constancy of water yield effectively.The inner wall surface of pedestal 11 is smooth, further avoid wall friction in pedestal 11 to the impact that micropore ceramics infiltration sheet moves and pressure compensation pad 3 is out of shape.
During irrigator work, pressure compensation pad 3 can according to the size generation distortion in various degree of irrigator intake pressure, by changing the contact area of sheet of seep water with micropore ceramics, automatically regulating the infiltration area of micropore ceramics infiltration sheet, thus reaching the object of adjustment irrigator flow.
As shown in Figure 6, operationally, irrigation water is being full of above micropore ceramics infiltration sheet while cushion chamber 13 irrigator, can to micropore ceramics infiltration sheet underseepage.When above micropore ceramics infiltration sheet, hydraulic pressure is less, as shown in Fig. 6 (a), in irrigator, the distortion of pressure compensation pad 3 is less, although now the flowing velocity of current in micropore ceramics infiltration sheet is slower, but because the infiltration area of micropore ceramics infiltration sheet is comparatively large, ensure that the water yield of irrigator.And when above micropore ceramics infiltration sheet, hydraulic pressure is larger, as shown in Fig. 6 (b), in irrigator, the distortion of pressure compensation pad 3 increases, although now the flowing velocity of current in micropore ceramics infiltration sheet is very fast, but because the infiltration area of micropore ceramics infiltration sheet reduces, the water yield of irrigator is remained unchanged.
The structure of chamber shell 9 as shown in Figure 2, the longitudinal cross-section of chamber shell 9 is in falling " recessed " shape, the inner position near shell 9 top, chamber of chamber shell 9 is configured for along projection symmetrical near the direction of inlet opening 1 axis the limiting card 8 limiting infiltration sheet 2 position, the top of described infiltration sheet 2 is positioned at the below of limiting card 8, forms cushion chamber 13 thus between the top and inlet opening 1 of infiltration sheet 2.
Limiting card 8 can be a pair projection arranged on chamber shell 9 inwall, also can be the endless loop put in the winding of chamber shell 9 inner ring.After limiting card 8 is arranged, infiltration sheet 2 just can not directly get lodged in below inlet opening 1, so just below inlet opening 1, leave a cushion chamber 13 all the time, cushion chamber 13 can disperse the current entered in cavity effectively, ensure that infiltration sheet 2 has larger initial infiltration area, current to enter after in cavity can be different on infiltration sheet 2 position through infiltration sheet 2, play effective filtration on the one hand, also water yield kept constant on the other hand and play buffering facilitation.
Circumferentially around cutting, (cutting does not penetrate bottom pedestal 11 in the outside of pedestal 11 sidewall 10, only on sidewall 10, cut off a part) a circle formation seat stand 12, described chamber shell 9 spiral-lock on the base 11 after, chamber shell 9 external diameter is consistent with pedestal 11 external diameter, make the outside diameter structure of whole irrigator better, be convenient to setting is installed.Can arrange external screw thread on pedestal 11 sidewall 10, the two connects in the mode of threaded engagement, is convenient to disassembling, assembling and replacing infiltration sheet 2.When this irrigator is installed, first pressure compensation pad 3 is fixed in pedestal 11, infiltration sheet 2 is placed on pressure compensation pad 3, finally chamber shell 9 and pedestal 11 are tightened.
Chamber shell 9 is polyethylene material, adopts the technique of injection mo(u)lding to make.The top of chamber shell 9 is provided with link 7, and the outer wall of link 7 is provided with connector, and the axial cross section of connector is trapezoidal; This fluking type structure can effectively be connected with pipeline more easily, and anti-sealing leaks, and can ensure the insertion depth of hollow billet, ensures that hollow billet inserts rear and irrigator compact siro spinning technology.Link 7 is one section of circular arc with the longitudinal cross-section of junction, chamber shell 9 top, and described inlet opening 1 is from axially penetrating link 7.The maximum outside diameter of link 7 is 4mm, and total length is 10mm, and the internal diameter of inlet opening 1 is 2mm, such be arranged so that irrigator operationally water inlet be regions of turbulent flow, reduce the probability that impurity enters irrigator, improve the resistance against physical blocking ability of irrigator.
Micropore ceramics pressure compensated drip irrigator of the present invention, seeped water by micropore ceramics sheet and pressure compensation pad 3 organically combine, and can automatically realize carrying out the energy dissipating function consistent with keeping irrigator water yield to irrigation water.By the selected micropore ceramics infiltration sheet with different porosities, coordinate the pressure compensation pad 3 of corresponding hardness and cambered surface function, achieve irrigator and keep water yield consistent in larger pressure range.See accompanying drawing 7, the micropore ceramics pressure compensated drip irrigator of the present embodiment is in the range hydraulic pressure of 3 ~ 24m, its flow is 8.2L/h, flow stance index is 0.02, water flow deviation is no more than ± 0.3L/h, meet large discharge and pressure compensated requirement simultaneously, be applicable to the irrigation of mountainous architecture woods.
It is simple that micropore ceramics pressure compensated drip irrigator of the present invention also has structure, the feature that cost is low, significantly can reduce the impact of Manufacture variation on uniformity of irrigation water appilcation, the aperture of micropore ceramics infiltration sheet is wherein only 1 ~ 2 micron, particle most of in water can be blocked in outside, improve the resistance against physical blocking ability of irrigator.Even if micropore ceramics infiltration sheet there occurs physical clogging, only irrigator need be turned on, the sheet that seeped water by micropore ceramics is oppositely installed in irrigator and continues to use, and namely achieves the back flush of micropore ceramics infiltration sheet, can not delay again the use of irrigator.In addition, after irrigator shell reaches and scraps service life, the sheet that seeped water by micropore ceramics takes out, and is installed in new irrigator after ultrasonic cleaning, still can continue to use, reduce further the manufacturing cost of irrigator.
Claims (9)
1. a micropore ceramics pressure compensated drip irrigator, comprise pedestal (11), it is characterized in that, described pedestal (11) inside is provided with cavity, be provided with the chamber shell (9) of spiral-lock on pedestal (11) pedestal (11) top side detachable, chamber shell (9) is provided with inlet opening (1), pedestal (11) is provided with the apopore (6) with inlet opening (1) coaxial inner conductor, the sheet (2) that seeps water is provided with in cavity between inlet opening (1) and apopore (6), hole is distributed with in infiltration sheet (2), current flow out pedestal (11) from apopore (6) after inlet opening (1) enters cavity after the filtration of infiltration sheet (2).
2. micropore ceramics pressure compensated drip irrigator as claimed in claim 1, it is characterized in that, described infiltration sheet (2) adopts micropore ceramics infiltration sheet, and the porosity of infiltration sheet (2) is 40% ~ 60%, and the diameter of hole is 1 ~ 2 micron.
3. micropore ceramics pressure compensated drip irrigator as claimed in claim 1, it is characterized in that, flexible pressure compensation pad (3) is provided with in described cavity, in pressure compensation pad (3) bottom support pedestal in the cavities (11), top connects with infiltration sheet (2);
Pressure compensation pad (3) is curved structure, the circumference of pressure compensation pad (3) is circular configuration, with the through hole of reducing in the middle part of it, the internal diameter variation tendency of through hole is: reduced gradually from the axially internal diameter of pressure compensation pad (3) top to bottom and finally becoming consistent.
4. micropore ceramics pressure compensated drip irrigator as claimed in claim 3, it is characterized in that, the cambered surface function of the through hole internal diameter changing unit of described pressure compensation pad (3) is quadratic function or cubic function.
Further, described cambered surface function is:
Y=0.03x
2+ 0.05x or y=0.005x
3+ 0.03x
2+ 0.01x
Wherein the implication of x and y is:
Pressure compensation pad (3) is axially cut off from it, the face of cutting off is symmetrical two parts, get its part, with the tip edges in the face of cutting off for the center of circle, set up coordinate system, the x-axis of coordinate system is perpendicular to the axial direction of pressure compensation pad (3), and y-axis is for being parallel to the axial direction of pressure compensation pad (3).
5. micropore ceramics pressure compensated drip irrigator as claimed in claim 3, it is characterized in that, described pedestal (11) top is provided with sidewall (10) along the circumference of pedestal (11), the cavity described in External Internal is formed; The center at pedestal (11) top is provided with boss (5), part looping groove (4) between boss (5) and sidewall (10), described pressure compensation pad (3) is arranged in cannelure (4).
6. micropore ceramics pressure compensated drip irrigator as claimed in claim 5, it is characterized in that, described apopore (6) runs through the bottom surface of pedestal (11) from boss (5) end face, the diameter of apopore (6) is greater than the diameter of inlet opening (1).
7. micropore ceramics pressure compensated drip irrigator as claimed in claim 1, it is characterized in that, the longitudinal cross-section of described chamber shell (9) is in falling " recessed " shape, the inner position near shell (9) top, chamber of chamber shell (9) is configured for along projection symmetrical near the direction of inlet opening (1) axis the limiting card (8) limiting infiltration sheet (2) position, the top of described infiltration sheet (2) is positioned at the below of limiting card (8), forms cushion chamber (13) thus between the top and inlet opening (1) of infiltration sheet (2).
8. micropore ceramics pressure compensated drip irrigator as claimed in claim 1, it is characterized in that, the outside of described pedestal (11) sidewall (10) is circumferentially enclosed around cutting one and is formed seat stand (12), described chamber shell (9) spiral-lock is after pedestal (11) is upper, and chamber shell (9) external diameter is consistent with pedestal (11) external diameter.
9. micropore ceramics pressure compensated drip irrigator as claimed in claim 1, it is characterized in that, the top of described chamber shell (9) is provided with link (7), and the outer wall of link (7) is provided with connector, and the axial cross section of connector is trapezoidal; Link (7) is one section of circular arc with the longitudinal cross-section of chamber shell (9) junction, top, and described inlet opening (1) is from axially penetrating link (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510706601.9A CN105340692B (en) | 2015-10-27 | 2015-10-27 | A kind of micropore ceramics pressure compensated drip douche |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510706601.9A CN105340692B (en) | 2015-10-27 | 2015-10-27 | A kind of micropore ceramics pressure compensated drip douche |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105340692A true CN105340692A (en) | 2016-02-24 |
| CN105340692B CN105340692B (en) | 2017-12-15 |
Family
ID=55316984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510706601.9A Expired - Fee Related CN105340692B (en) | 2015-10-27 | 2015-10-27 | A kind of micropore ceramics pressure compensated drip douche |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105340692B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110419418A (en) * | 2019-07-16 | 2019-11-08 | 三峡大学 | Single ellipse pair is thrown streamlined douche plug and its installation method |
| CN116058265A (en) * | 2023-03-01 | 2023-05-05 | 西北农林科技大学 | Digital variable irrigation group control system and digital variable irrigator |
| WO2023155490A1 (en) * | 2022-02-21 | 2023-08-24 | 西北农林科技大学 | Automated production device for button-type porous ceramic irrigation emitter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2237925A1 (en) * | 1998-07-06 | 2000-01-06 | Shaoying Wang | Tree irrigation system (tis) with a controller of negative pressure |
| CN2577567Y (en) * | 2002-11-05 | 2003-10-08 | 杨建忠 | Anti-block infiltrating irrigating tubes |
| CN2643646Y (en) * | 2003-08-04 | 2004-09-29 | 国家节水灌溉杨凌工程技术研究中心 | Self-flushing anti-blocking drip irrigation emitter |
| CN202232414U (en) * | 2011-09-28 | 2012-05-30 | 甘肃大禹节水集团股份有限公司 | Anti-blocking underground water irrigator |
| CN102527532A (en) * | 2012-01-11 | 2012-07-04 | 西北农林科技大学 | High-flow pressure-compensated drip irrigation emitter |
| CN102671782A (en) * | 2012-05-17 | 2012-09-19 | 上海茵能节能环保科技有限公司 | Embedded type reverse-filtering and anti-blocking irrigation emitter and trickle irrigation pipeline |
| CN203302084U (en) * | 2013-05-21 | 2013-11-27 | 宁夏银河钢塑滴灌设备有限公司 | Novel self-adaption underground plugging resistant copper sheet drip irrigation emitter |
| CN204168842U (en) * | 2014-08-20 | 2015-02-25 | 西北农林科技大学 | A kind of pressure compensated drip irrigator |
-
2015
- 2015-10-27 CN CN201510706601.9A patent/CN105340692B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2237925A1 (en) * | 1998-07-06 | 2000-01-06 | Shaoying Wang | Tree irrigation system (tis) with a controller of negative pressure |
| CN2577567Y (en) * | 2002-11-05 | 2003-10-08 | 杨建忠 | Anti-block infiltrating irrigating tubes |
| CN2643646Y (en) * | 2003-08-04 | 2004-09-29 | 国家节水灌溉杨凌工程技术研究中心 | Self-flushing anti-blocking drip irrigation emitter |
| CN202232414U (en) * | 2011-09-28 | 2012-05-30 | 甘肃大禹节水集团股份有限公司 | Anti-blocking underground water irrigator |
| CN102527532A (en) * | 2012-01-11 | 2012-07-04 | 西北农林科技大学 | High-flow pressure-compensated drip irrigation emitter |
| CN102671782A (en) * | 2012-05-17 | 2012-09-19 | 上海茵能节能环保科技有限公司 | Embedded type reverse-filtering and anti-blocking irrigation emitter and trickle irrigation pipeline |
| CN203302084U (en) * | 2013-05-21 | 2013-11-27 | 宁夏银河钢塑滴灌设备有限公司 | Novel self-adaption underground plugging resistant copper sheet drip irrigation emitter |
| CN204168842U (en) * | 2014-08-20 | 2015-02-25 | 西北农林科技大学 | A kind of pressure compensated drip irrigator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110419418A (en) * | 2019-07-16 | 2019-11-08 | 三峡大学 | Single ellipse pair is thrown streamlined douche plug and its installation method |
| WO2023155490A1 (en) * | 2022-02-21 | 2023-08-24 | 西北农林科技大学 | Automated production device for button-type porous ceramic irrigation emitter |
| CN116058265A (en) * | 2023-03-01 | 2023-05-05 | 西北农林科技大学 | Digital variable irrigation group control system and digital variable irrigator |
| CN116058265B (en) * | 2023-03-01 | 2024-03-22 | 西北农林科技大学 | Digital variable irrigation group control system and digital variable irrigator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105340692B (en) | 2017-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105325263A (en) | Anti-clogging easy-to-clean microporous ceramic drip irrigation emitter | |
| CN106171843B (en) | A kind of anti-clogging pressure compensation douche of the uniform self-regulated of rate of discharge | |
| CN105340692A (en) | Micropore ceramic pressure compensation type drip irrigation emitter | |
| CN102527532A (en) | High-flow pressure-compensated drip irrigation emitter | |
| CN212306370U (en) | Anti-blocking pipeline for irrigation and water conservancy irrigation | |
| CN105782533B (en) | A kind of pressure-adjusting type elasticity douche | |
| CN206284023U (en) | A kind of plant root irrigation pipe and subirrigation system | |
| CN102847453A (en) | Microbubble generator used for irrigation | |
| CN101850309B (en) | Helical labyrinth wide-passage type water filler for filling water into fountain from bottom | |
| CN207589708U (en) | A kind of diplopore paster-type water dropper | |
| CN207491707U (en) | A kind of flow adjustable pressure compensation type emitter | |
| CN208821385U (en) | A kind of drip irrigation zone of anti-blocking interior edge patch | |
| CN100554752C (en) | Constant current stabilizer for drip irrigation | |
| CN204168842U (en) | A kind of pressure compensated drip irrigator | |
| CN215530530U (en) | Columnar irrigator and drip irrigation system | |
| CN202635255U (en) | Adjustable inserting-rod type micro-spraying irrigation emitter | |
| CN202285730U (en) | Drip irrigation tape | |
| CN105944440B (en) | A kind of cartridge filter of radial facing water distribution | |
| CN204560459U (en) | A kind of anti-clogging irrigator | |
| CN107624616A (en) | A kind of irrigation pipe | |
| CN207754264U (en) | A kind of happy shape tubelet effluent irrigation system terminal setting structure of apple high level cadre single layer | |
| CN114365684A (en) | Maize is planted with driping irrigation device | |
| CN207940154U (en) | A kind of anti-blocking drip irrigation emitter of cleanable | |
| CN214413732U (en) | Embedded pressure compensation type irrigator for irrigation | |
| CN114097580B (en) | Water-saving micro-irrigation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20181027 |