CN102499025A - Pressure compensating drip irrigation emitter with changed structure - Google Patents
Pressure compensating drip irrigation emitter with changed structure Download PDFInfo
- Publication number
- CN102499025A CN102499025A CN2011103297707A CN201110329770A CN102499025A CN 102499025 A CN102499025 A CN 102499025A CN 2011103297707 A CN2011103297707 A CN 2011103297707A CN 201110329770 A CN201110329770 A CN 201110329770A CN 102499025 A CN102499025 A CN 102499025A
- Authority
- CN
- China
- Prior art keywords
- flow path
- pressure
- drip irrigation
- runner
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- Nozzles (AREA)
Abstract
The invention discloses a pressure compensating drip irrigation emitter with a changed structure. The structure of the pressure compensating drip irrigation emitter is that a water inlet is communicated with one end of a flow path, a water outlet is communicated with the other end of the flow path, linear sawtooth ends are evenly distributed on two sides in the flow path, and elastic blocking pieces are distributed at the sawtooth ends at equidistant intervals. The width of elastic blocking pieces is slightly smaller than the thickness of sawteeth so that friction between the elastic blocking pieces and the flow path is avoided. The deflection direction of the elastic blocking pieces is the direction of water flow. A back fence is arranged at the back of the irrigation emitter and is communicated with the water inlet. By adding the elastic blocking pieces on tooth-shaped structure ends of a traditional labyrinth flow path, the irrigation emitter achieves the purpose of integral design of compensating pieces and the flow path so that assembly errors between the compensating pieces and the flow path are reduced, and local head loss caused by the assembly is reduced. The novel flow path can achieve pressure compensation, can be used in production of embedded-in drip irrigation belts, and can solve the problem that the drip irrigation belts are not suitable for achieving the pressure compensation. Besides, the pressure compensating drip irrigation emitter further has capacities of self cleaning and blocking resistance.
Description
Technical field
The invention belongs to agricultural water-saving irrigation and advanced manufacturing technology crossing domain, be specifically related to a kind of pressure-compensated drip emitter that becomes structure.
Background technology
Water-saving irrigation is the major measure that the countries in the world developing agricultural is taked, and slight irrigation is as a kind of advanced person's in the water-saving irrigation high standard irrigation technique, by a lot of country employing in the world.The wherein tool water saving of drip irrigation, raising the output, significant advantage such as efficient can be widely used in the economic crops plantations such as fruit tree, vegetables, flowers, medicinal material.Irrigator is the core component of drip irrigation system, and its performance quality is applied and the result of use decisive role whole drip irrigation system.
The pressure-compensated irrigator is the drip irrigation product that last century, the mid-1970s occurred, and the influence that its water flow is changed by work water pressure is very little, has advantages such as oneself washes, performance of anti-blockage is good simultaneously.Yet the development difficulty of pressure-compensated irrigator is big, and is with high content of technology, is one of outstanding feature of weighing drip irrigation equipment production firm technical merit height.Abroad the research of pressure compensation douche is compared early, have the status of near monopoly in this respect, released the pressure-compensated irrigator of various ways and characteristics.Domestic development to the pressure-compensated irrigator is started late, and is being in introduction, imitated stage aspect the production of compensation irrigator basically, and performance of products is stable inadequately, and runner is narrow and small circuitous, stops up easily, has reduced the service life of irrigator.
At present, pressure-compensated irrigator commonly used mainly contains two kinds of pipe following formula and internally-inlaids, and it can both guarantee the water outlet uniformity preferably in the pressure compensation scope.But all there are some defectives in two kinds of irrigators, and wherein: pipe following formula pressure compensation douche is when being in compensating coefficient, and the current under the flexible sheet are laminar flow, and runner diminishes, and result in blockage easily, and the pressure compensation scope is little; In flushing during state, the flow of irrigator water flow during than compensating coefficient is a lot of greatly, and be unfavorable to the operation of water pump.Improve the precision and the reliability of adjusting through having increased by one section labyrinth flow-path in the internally-inlaid pressure compensation douche, but the not increase of pressure regulation scope, and internally-inlaid irrigator assembly structure is complicated, and manufacturing cost is higher.
Summary of the invention
It is not high to the objective of the invention is to overcome the existing pressure compensation douche water outlet uniformity; Be prone to stop up complex structure, the shortcoming that manufacturing cost is high; A kind of pressure-compensated drip emitter that becomes structure is provided; This irrigator runner is simple, can realize the pressure compensation effect of irrigator, and good the water outlet uniformity and performance of anti-blockage are arranged.
A kind of pressure-compensated drip emitter that becomes structure provided by the invention is characterized in that it includes the mouth of a river, runner, sawtooth end, elastic block piece, delivery port and back fence; Water inlet communicates with an end of runner; Delivery port communicates with the other end of runner, and it is linear that the sawtooth end is, and is evenly distributed on the both sides in the runner; Elastic block piece at interval, equidistantly distribute on the sawtooth end; Its width is slightly less than sawtooth thickness, prevents itself and runner friction, and the skew direction of elastic block piece is along water (flow) direction; The back fence is positioned at the back of irrigator, and communicates with water inlet.
The present invention selected with the pressure compensating method of routine different design principle, be designed to lower-cost irrigate band, utilize the elastic block piece of runner dentation end to bend, make the water flow passage structural change, reach pressure compensated effect.This kind pressure compensation principle has been broken the pressure compensation form of present spring-piece type; The elastic construction and the runner of compensation usefulness are designed together; Do not need to carry out the processing and the manufacturing of diaphragm more in addition, reduced the manufacturing cost of product, can satisfy the field crop drip irrigation and once drop into low requirement.Simultaneously, this type irrigator is in the highest and minimum pressure scope that allows, and is lower to the susceptibility of pressure, kept stable water flow basically, highly beneficial to the uniformity of irrigating, and has the self-cleaning function simultaneously.
Description of drawings
Fig. 1 becomes the whole three-view diagram of the compensation drip emitter of structural pressure, and wherein, Fig. 1 .1 is a front view, and Fig. 1 .2 is a rearview, and Fig. 1 .3 is a vertical view;
Fig. 2 is the cutaway view of irrigator runner;
Fig. 3 is the irrigator schematic perspective view;
Fig. 4 is the enlarged diagram of irrigator elastic block piece place runner;
Sketch map when Fig. 5 is irrigator work, wherein, Fig. 5 .1 is the sketch map that irrigator is in the flushing state, Fig. 5 .2 is the sketch map that irrigator is in compensating coefficient;
Embodiment
This irrigator is the internally-inlaid irrigate band, and flow passage structure is the zigzag labyrinth type.Wherein, linear, evenly distribution that broached-tooth design is, elastic block piece equidistantly distributes on laciniation at interval.The width of elastic block piece is slightly less than sawtooth thickness; Its incline direction is consistent with water (flow) direction; Flexural oscillations in various degree can take place in elastic block piece under the hydraulic pressure condition of different, the overcurrent cross-sectional area in the runner is changed along with the change of pressure, realize the pressure compensation effect.Below in conjunction with accompanying drawing and instance concrete working method of the present invention is done further detailed elaboration:
The present invention requires irrigator in certain working head (pressure) scope, obtains stable water flow.Shown in Fig. 1 .1, irrigator of the present invention comprises 6 major parts: water inlet 1, runner 2, sawtooth end 3, elastic block piece 4, delivery port 5, back fence 6.Water inlet 1 communicates with runner 2 first halfs, and delivery port 5 communicates with runner 2 latter halfs.It is linear that sawtooth end 3 is, and is evenly distributed on the both sides of runner 2, and elastic block piece 4 at interval; Equidistantly distribute with on the sawtooth end; Its width is slightly less than sawtooth thickness (both are preferably between the 0.1mm-0.5mm difference), prevents itself and runner friction, and the skew direction of elastic block piece is along water (flow) direction.Back fence 6 is positioned at the back of irrigator, and communicates with water inlet 1.It is in order to save material that the back is designed to fence structure, lightening material, and fence structure can guarantee the working strength of irrigator simultaneously.Whole irrigator and water pipe stick on together through after the hot pressing.
Be that the present invention does further explain below with the instance:
A kind of instance, water inlet 1 is the narrow and long rectangular groove, and delivery port 5 is roomy rectangular channel, and back fence 6 communicates with water inlet 1.The width of runner 2 is 0.63mm, and the degree of depth is 0.5mm, and length is 9mm, and each 10 up and down of the broached-tooth designs of sawtooth end 3 are alternately put, and form runner 2, and the crown angle of sawtooth is 30 degree, and the crown rounding is handled, and makes current thanks for your hospitality fluidity matter.Elastic block piece 4 alternately is distributed on the sawtooth end, and 5 altogether, direction favours water (flow) direction one side, and the width of elastic block piece is 0.4mm, and long 0.5mm, thickness are 0.1mm.
During work; Fence 6 flows into current from the back with certain working head, flows into the irrigator runner through water inlet 1, and water inlet 1 is a bigger rectangular channel in cross section (with respect to the sectional area of runner); So it is comparatively slow that current can become, be difficult for forming rapid whirlpool in water inlet 1.Then current get into runner 2, when current are walked around sawtooth end 3, can produce certain pressure to the elastic block piece on the sawtooth end 4, when work water pressure less than to a certain degree the time, elastic block piece will not deform, and be flushing state (like Fig. 5 .1); When work water pressure increased gradually, elastic block piece deformed, and made that the overflow section of runner is long-pending to reduce gradually, and this state is compensating coefficient (like Fig. 5 .2).After current are walked around elastic block piece, can walk around a sawtooth end, arrive the elastic block piece place once more, so back and forth for several times, when current arrived delivery port 5, hydraulic pressure was close to stable, can guarantee in very little fluctuation range.The design of this elastic block piece makes this kind runner have pressure controlled effect, thereby realizes the pressure compensation effect of irrigator.At last, current flow out water wall through delivery port 5, the crop around the irrigation pipe.So far, irrigator has been accomplished whole process from inlet water to outlet water.
Except that this instance, the width of water inlet 1 and runner 2, the form of sawtooth end 3, elastic block piece 4 and back fence 6 all can change.For example, the width of water inlet 1 can change between 1-2 times of width of flow path.The concrete shape of sawtooth end 3, size, number all can change, and for example, the sawtooth end can be triangle, rectangle, ellipse etc.; We also can change the size of runner through the size that changes the sawtooth end; The number of sawtooth end also can change, and for trapezoidal sawtooth end, we can also change the size of its angle; 10 degree～30 degree also can, the sawtooth end should be staggered up and down.The length of elastic block piece 4 also can change, but its length should not surpass the minimum flow path width, and its width also can change, but should not surpass runner thickness, and its thickness is then selected a suitable value according to the requirement of strength of catch.The form of back fence 6 is not limited to vertical parallel paliform, also can be horizontal paliform, intersection paliform, rhombus paliform etc.
More than set forth the design feature and the course of work of irrigator, below the operation principle of main explanation irrigator.The main feature of this irrigator be adopted with the pressure compensating method of routine different design principle, the form of product is the irrigate band, formula and column type water dropper have significantly reduced manufacturing cost than the aperture.Irrigator utilizes the elastic block piece of runner sawtooth end under working head, to bend, and makes the water flow passage changes of section, reaches pressure compensated effect.The maximum characteristics of this irrigator are not adopt traditional spring-piece type pressure compensation form; And the elastic construction and the runner that will compensate usefulness design together; Directly once-forming goes out flow passage structure; Do not need to carry out the processing and the manufacturing of diaphragm more in addition, reduced the manufacturing cost of product, can satisfy the field crop drip irrigation and once drop into low requirement.
According to the flow pressure result of the test, the fluidised form index that can calculate this type irrigator is 0.008, and discharge coefficient is 15.0.Wherein, fluidised form index x has characterized the pressure compensation characteristic of irrigator, when the x value less than 0.4 the time; It is generally acknowledged that this irrigator is a pressure compensation douche; X is more near 0, and the compensation characteristic of irrigator is just good more, and the fluidised form index of desirable pressure compensation douche equals 0; And the fluidised form index x value of this type pressure-compensated irrigator is 0.008, and visible pressure compensation effect is very obvious.Under working head, the discharge coefficient of irrigator is in 15.0 by a small margin fluctuations up and down, and is visible; This type irrigator is in the highest and minimum pressure scope that allows; Susceptibility to pressure is lower, has kept stable water flow basically, and is highly beneficial to the uniformity of irrigating.Simultaneously, this irrigator also has the self-cleaning function under the flushing state.
In sum; This irrigator is creationary has introduced a kind of novel runner that becomes overflow section pressure compensation structure; The elastic block piece and the irrigator runner that will have the pressure compensation effect are designed to integral structure; Simplified the structural design of pressure-compensated irrigator, adopted the integral forming technology to reduce manufacturing cost, the little materials of volume are economized.Result of the test shows, equidistance, elastic block piece spaced apart, and the catch length dimension is when big, and water flow is minimum, and at 4mH
2O～12mH
2Has good pressure compensation effect in the O pressure limit.
Claims (1)
1. a pressure-compensated drip emitter is characterized in that: it is characterized in that it includes the mouth of a river (1), runner (2), sawtooth end (3), elastic block piece (4), delivery port (5) and back fence (6); Water inlet (1) communicates with an end of runner (2); Delivery port (5) communicates with the other end of runner (2), and it is linear that sawtooth end (3) is, and is evenly distributed on the both sides in the runner (2); Elastic block piece (4) at interval, equidistantly distribute on sawtooth end (3); Its width is slightly less than sawtooth thickness, prevents itself and runner friction, and the skew direction of elastic block piece is along water (flow) direction; Back fence (6) is positioned at the back of irrigator, and communicates with water inlet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103297707A CN102499025A (en) | 2011-10-26 | 2011-10-26 | Pressure compensating drip irrigation emitter with changed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103297707A CN102499025A (en) | 2011-10-26 | 2011-10-26 | Pressure compensating drip irrigation emitter with changed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102499025A true CN102499025A (en) | 2012-06-20 |
Family
ID=46211207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103297707A Pending CN102499025A (en) | 2011-10-26 | 2011-10-26 | Pressure compensating drip irrigation emitter with changed structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102499025A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105580712A (en) * | 2015-11-20 | 2016-05-18 | 西北农林科技大学 | Pressure compensation type cylindrical water dropper |
| CN106465670A (en) * | 2015-08-25 | 2017-03-01 | 新疆天业（集团）有限公司 | A kind of drip irrigation zone for surface-water irrigation |
| CN108024516A (en) * | 2015-10-01 | 2018-05-11 | 恩普乐股份有限公司 | Transmitter and trickle irrigation delivery pipe |
| JP2019129784A (en) * | 2018-02-01 | 2019-08-08 | 株式会社エンプラス | Emitter and drip irrigation tube |
| WO2020243630A1 (en) * | 2019-05-30 | 2020-12-03 | Massachusetts Institute Of Technology | Drip irrigation system, method and controller |
| CN112075331A (en) * | 2019-06-14 | 2020-12-15 | 托罗公司(美国) | Track tuning pressure response irrigation emitter |
| CN114747458A (en) * | 2022-04-07 | 2022-07-15 | 郑州黄河河务局惠金黄河河务局 | Environment-friendly hydraulic engineering automatic irrigation water conservation shower nozzle |
| CN114847130A (en) * | 2022-05-26 | 2022-08-05 | 河南省景观规划设计研究院有限公司 | Water-saving drip irrigation device capable of uniformly discharging water |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999002273A1 (en) * | 1997-07-09 | 1999-01-21 | T-Systems International, Inc. | Unibody pressure-compensating emitter |
| CN2660883Y (en) * | 2003-07-24 | 2004-12-08 | 北京绿源塑料联合公司 | Built-in type pressure compensation flat dripper |
| CN202285732U (en) * | 2011-10-26 | 2012-07-04 | 华中科技大学 | Pressure compensated drip irrigation device |
-
2011
- 2011-10-26 CN CN2011103297707A patent/CN102499025A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999002273A1 (en) * | 1997-07-09 | 1999-01-21 | T-Systems International, Inc. | Unibody pressure-compensating emitter |
| CN2660883Y (en) * | 2003-07-24 | 2004-12-08 | 北京绿源塑料联合公司 | Built-in type pressure compensation flat dripper |
| CN202285732U (en) * | 2011-10-26 | 2012-07-04 | 华中科技大学 | Pressure compensated drip irrigation device |
Non-Patent Citations (4)
| Title |
|---|
| 冯俊杰等: "自适应地下滴灌灌水器的设计开发", 《节水灌溉》 * |
| 刘洁: "滴灌灌水器水力性能与快速制造方法研究", 《中国博士学位论文全文数据库 农业科技辑》 * |
| 刘洁等: "滴灌灌水器复杂流道局部阻力特征的试验研究", 《中国农村水利水电》 * |
| 李光永: "压力补偿灌水器的研究新进展与使用中应注意的几个问题", 《节水灌溉》 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106465670A (en) * | 2015-08-25 | 2017-03-01 | 新疆天业（集团）有限公司 | A kind of drip irrigation zone for surface-water irrigation |
| US10834878B2 (en) | 2015-10-01 | 2020-11-17 | Enplas Corporation | Emitter and drip irrigation tube |
| CN108024516A (en) * | 2015-10-01 | 2018-05-11 | 恩普乐股份有限公司 | Transmitter and trickle irrigation delivery pipe |
| CN105580712B (en) * | 2015-11-20 | 2018-02-23 | 西北农林科技大学 | A kind of pressure-compensated column dripper |
| CN105580712A (en) * | 2015-11-20 | 2016-05-18 | 西北农林科技大学 | Pressure compensation type cylindrical water dropper |
| JP2019129784A (en) * | 2018-02-01 | 2019-08-08 | 株式会社エンプラス | Emitter and drip irrigation tube |
| WO2019151366A1 (en) * | 2018-02-01 | 2019-08-08 | 株式会社エンプラス | Emitter and tube for drip irrigation |
| WO2020243630A1 (en) * | 2019-05-30 | 2020-12-03 | Massachusetts Institute Of Technology | Drip irrigation system, method and controller |
| CN112075331A (en) * | 2019-06-14 | 2020-12-15 | 托罗公司(美国) | Track tuning pressure response irrigation emitter |
| CN114747458A (en) * | 2022-04-07 | 2022-07-15 | 郑州黄河河务局惠金黄河河务局 | Environment-friendly hydraulic engineering automatic irrigation water conservation shower nozzle |
| CN114747458B (en) * | 2022-04-07 | 2023-04-07 | 郑州黄河河务局惠金黄河河务局 | Environment-friendly hydraulic engineering automatic irrigation water-saving spray head |
| CN114847130A (en) * | 2022-05-26 | 2022-08-05 | 河南省景观规划设计研究院有限公司 | Water-saving drip irrigation device capable of uniformly discharging water |
| CN114847130B (en) * | 2022-05-26 | 2023-12-19 | 河南省景观规划设计研究院有限公司 | Water-saving drip irrigation device capable of evenly discharging water |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202285732U (en) | Pressure compensated drip irrigation device | |
| CN102499025A (en) | Pressure compensating drip irrigation emitter with changed structure | |
| CN106171843B (en) | A kind of anti-clogging pressure compensation douche of the uniform self-regulated of rate of discharge | |
| CN204762587U (en) | Two -sided runner pressure compensation type ware of watering and drip irrigation zone thereof | |
| CN103994102A (en) | Spiral pumping chamber design method for low-specific-speed centrifugal pump | |
| CN101722118B (en) | Flow passage of helical-tooth drip irrigation emitter | |
| CN103385154B (en) | Drip irrigation pipe | |
| CN203505207U (en) | Surface-mount-type water dropper | |
| CN106561416B (en) | Can decide quantitative medicinal material device that waters of trunk | |
| CN102318540B (en) | Inside embedded patch-type anti-clogging drip irrigation head | |
| CN209810456U (en) | Pressure compensation type water dropper | |
| CN103477949A (en) | Paster-type water dropper | |
| CN102577912A (en) | Special-shaped streaming trickle irrigation device | |
| CN210630345U (en) | Novel flat irrigation water dropper of side water inlet structure | |
| CN100376147C (en) | Sheet ambient-flow irrigator | |
| CN110140635A (en) | A kind of douche based on annular complementary runner | |
| CN202206784U (en) | Blocking-proof emitter | |
| CN104646200A (en) | Sawtooth-shaped labyrinth drip irrigation tape | |
| CN2768436Y (en) | Flowing around irrigating device for watering an area | |
| CN204707634U (en) | A kind of single-blade labyrinth type drip irrigation tape | |
| CN100333637C (en) | Circular streaming water irrigator | |
| CN216699690U (en) | Drip irrigation tape with embedded pressing sheet | |
| CN204134758U (en) | A kind of slight irrigation water dropper | |
| CN204518725U (en) | Labyrinth type drip irrigation tape | |
| CN201382048Y (en) | Gaugeable flow-guide impingement plate for ridge field irrigation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120620 |