CN101229532A - Single-wing twin channel circumferential motion micropressure drip tape - Google Patents
Single-wing twin channel circumferential motion micropressure drip tape Download PDFInfo
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- CN101229532A CN101229532A CNA2008100467920A CN200810046792A CN101229532A CN 101229532 A CN101229532 A CN 101229532A CN A2008100467920 A CNA2008100467920 A CN A2008100467920A CN 200810046792 A CN200810046792 A CN 200810046792A CN 101229532 A CN101229532 A CN 101229532A
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Abstract
The invention discloses a flow micro-pressure drip irrigation tape with a single wing and double channels, which comprises a water pipeline, a drip irrigation tape wing and n working units; the drip tape wing is adhered to the water pipeline; the n working units are distributed on the drip tape wing alternatively. The working units comprise a water inlet, a double-channel flow passage and a water outlet; the water inlet is communicated with the water pipeline; the water inlet and the water outlet are communicated through the double-channel flow passage; the double-channel flow passage consists of continuously distributed serrated passage units. The part passage surface of the drip irrigation tape of the invention is a labyrinth-type serrated flow passage; the mutual erosions of the continuous serrated structure and water flow cause local energy dissipation to be more outstanding and ensure an emitter to have more efficient energy dissipation effect. The invention has better effluent evenness, anti-clogging performance and economy. The drip irrigation tape is suitable for irrigation under low water pressure and is applied to irrigation under the conditions of complex terrain and simple equipment.
Description
Technical field
The invention belongs to the agricultural water-saving irrigation technical field, relate to a kind of drip irrigation zone, be specially a kind of single-wing twin channel circumferential motion micropressure drip tape.
Background technology
Water-saving irrigation is the major measure that the countries in the world developing modern agriculture is taked, and drip irrigation is as the high standard irrigation technique of a kind of advanced person in the water-saving irrigation, by more than 100 country's employing in the world.Significant advantages such as the wherein tool water saving of drip irrigation, volume increase, efficient and environmental protection can be widely used in the water-saving irrigation of the industrial crops such as cotton, vegetables, flowers, urban afforestation band, gift melon and fruit and fruit tree in land for growing field crops, booth, greenhouse and the ecological garden.
At present worldwide, the drip irrigation product is discovered through the countries in the world scientist mainly to exist the blockage problem that physics, chemistry and biological factor cause because its special micro-structure and bad working environment make its ubiquity technical barriers such as hydraulic performance difference and blockage problem be outstanding.Physical factor mainly is organic or inorganic solid suspension, piles up to form in pipeline and stops up; Chemical factor then mainly is the chemical substance in the water of dissolving, the chemical reaction of deposition takes place in flow process and results in blockage; Biological factor just is meant the biological self reproducing growth in the water.Its processability and cost have influenced douche too and have applied in addition.Produce a kind of low cost and good hydraulic performance particularly the outstanding douche of anti-blockage capability be current main direction of studying.
Summary of the invention
Main purpose of the present invention is to provide a kind of single-wing twin channel circumferential motion micropressure drip tape, and this drip irrigation zone has solved that existing drip irrigation zone is easily stopped up, the problem of cost height and complicated operation.
Single-wing twin channel circumferential motion micropressure drip tape provided by the invention is characterized in that: it comprises aqueduct, the drip irrigation band edge wing and n working cell, n 〉=1, and the drip irrigation band edge wing is attached on the aqueduct, and n working cell is distributed on the drip irrigation band edge wing;
Each working cell includes water inlet, binary channels is streamed runner and delivery port, and water inlet is communicated with aqueduct, and delivery port is in communication with the outside, and streams runner by binary channels between water inlet and the delivery port and is communicated with; Binary channels is streamed runner and is made up of the sawtooth shape flow passage unit of continuous distributed.
Single-wing twin channel circumferential motion micropressure drip tape of the present invention adopts thin-walled, and (0.2～0.5mm) macromolecular material pipe racks is provided with binary channels and streams runner on the wing of limit, improve the performance of anti-blockage of runner; In addition, adopt a plurality of oblique water inlets, out of square with the runner direction, avoid stopping up material and stop up in import department; At last, and the flow channel length that extended (200～300mm), increased the unit number of runner, obtain effect of energy dissipation preferably, flow can be controlled at 1～4L/h.The runner section plane of douche is the labyrinth type zigzag and streams runner, and the effect of washing away mutually between continuous tooth-shape structure and the current makes that the local energy dissipating of this runner is more outstanding, has guaranteed that douche has effect of energy dissipation more efficiently.Adopt this product to have the better water outlet uniformity, performance of anti-blockage and economy.This drip irrigation zone is suitable for the drip irrigation under the minute-pressure press strip spare, be applicable to a varied topography, the drip irrigation under the equipment simple condition.The present invention can be widely used in field crop, as the water-saving irrigation of industrial crops such as cotton, sugarcane and vegetables, also can be applied to the water-saving irrigation under the conditions such as booth, greenhouse and ecological garden simultaneously.
Description of drawings
Fig. 1 is the single-wing twin channel circumferential motion micropressure drip tape structural representation;
Fig. 2 is the single-wing twin channel circumferential motion micropressure drip tape cross-sectional view;
Fig. 3 is the structural representation of single-wing twin channel circumferential motion micropressure drip tape water inlet (position A among Fig. 2);
Fig. 4 is the structural representation of flow passage unit.
The specific embodiment
Below in conjunction with accompanying drawing and example concrete working method of the present invention is done further detailed elaboration.
As shown in Figure 1, single-wing twin channel circumferential motion micropressure drip tape of the present invention comprises aqueduct 1, the drip irrigation band edge wing 5 and n working cell, n 〉=1, the drip irrigation band edge wing 5 is attached on the aqueduct 1, n working cell is distributed on the drip irrigation band edge wing 5, and each working cell spacing is that 150mm is to better effects if between the 300mm.
Each working cell includes water inlet 2, binary channels is streamed runner 3 and delivery port 4, and water inlet 2 is communicated with aqueduct 1, and delivery port 4 is in communication with the outside, and streams runner 3 by binary channels between water inlet 2 and the delivery port 4 and is communicated with.As shown in Figure 3, the angled θ of caliber of water inlet and aqueduct 1, this angle θ can regulate between the 30-60 degree, is beneficial to blocking medium and passes through water inlet smoothly.The current of certain pressure flow through from aqueduct 1, and water enters runner from runner water inlet 2, and this also is unique place that is communicated with that binary channels is streamed runner 3 and aqueduct 1.Water streams in the runner 3 in binary channels that the delivery port 4 from flow field end flows out after the energy dissipating.
Binary channels is streamed runner 3 and is made up of a series of sawtooth shape flow passage unit, and the quantity of flow passage unit is between the 24-60, and the crown angle is 30 degree-60 degree, and each zigzag unit continuous distributed has formed and streamed the binary channels runner.For further improving technique effect of the present invention, as shown in Figure 4, the centre of flow passage unit can be provided with the boss 6 of similar bridge pier, and runner outward flange 7 is designed to the teeth shape of angle 30-60 degree, and is corresponding with boss 6, formed binary channels and streamed runner.The size of boss 6 (form, angle and the length of side) can change, can change the size of runner by the length of side that changes boss 6, boss 6 is except being the rhombus, it also can be other shape, as rectangle, circle etc., by the shape that changes boss 6, the structure that size changes runner, thereby reach the overall performance of optimizing douche.
Spacing according to the different delivery ports of flow passage unit number is also different.Flow passage unit quantity is between the 24-60, and corresponding delivery port spacing does not wait from 150mm to 300mm yet.The delivery port spacing is to determine according to the reality of using crop, and distance can be adjusted to be fit to the spacing of different crop plants.Flow can be regulated working cell quantity and control, to be fit to the different crops that require of moisture.
The two ends and the water source of aqueduct join, perhaps join other end sealing of an end and water source.Aqueduct communicates with water inlet on the wing of limit, and current flow into from water inlet 2 with certain pressure, can become comparatively slow through the current of water inlet 2, is difficult for forming rapid vortex.Then current enter binary channels and stream runner 3, when current by the boss 6 in first flow passage unit, current are divided into two, and after by boss 6, merge into current again, then by second boss 6, current so circulation pass through several boss 6 after, enter delivery port 4, delivery port 4 and water inlet 2 are similar, have certain angle.So far, douche has been finished whole process from inlet water to outlet water.
Below the operation principle of main explanation douche.The main feature of this douche is to combine with novel minute-pressure single-blade drip irrigation zone streaming flow passage structure, has adopted minute-pressure single-blade drip irrigation zone here respectively and has streamed the binary channels labyrinth flow-path as a kind of example of this invention.Current are at first by inlet channel, and the current with certain pressure enter from the water inlet that has a certain angle θ with caliber.This water inlet makes current enter into runner with fast speeds, has effectively prevented the obstruction at water inlet of solid particle and deposit, has improved the performance of anti-blockage of douche on the whole.Current are gone into the runner part with velocity flow relatively stably.Current overcome the effect of frictional resistance on the one hand when the labyrinth flow-path of the zigzag structure that is not more than 60 degree through the crown angle; On the other hand, because the corner of runner is anxious, many and continuously, form local eddy currents easily, these eddy current also have the effect of energy dissipating; In addition, be divided into two shuntings during the rhombus boss 6 of current by douche central authorities, and when pooling a runner after by rhombus boss 6, washing away mutually between two shuntings has effect of energy dissipation more efficiently.Under the acting in conjunction aspect above-mentioned three, make the energy of current in short distance, to obtain bigger consumption, realized the energy dissipating of douche and the adjusting of pressure.Flow-shape in this runner is full turbulent flow, and its fluidised form index is about 0.5, is no more than 0.57.And the labyrinth type annular is streamed the water flow that the size of the teeth groove structure of runner and rhombus boss 6 has determined douche.
The present invention requires the drip irrigation zone in lower working head (pressure) scope, is specifically related to 10m and following head, obtains stable water flow.
Example:
This drip irrigation zone is radially to be pressed into the structure with runner in the middle part with mould by one section thin-wall circular tube.Mould once rolls and forms two radially parallel runners, and delivery port is shared.Radially cut after suppressing successfully and just form two drip irrigation zone products from the centre.
The pressure flow data of following table for being tested in our experiment have shown that the minute-pressure drip irrigation of this drip irrigation zone is functional.
The pressure flow result of the test
| Pressure (kPa) | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
| Flow (L/h) | 2.20 | 2.66 | 3.07 | 3.41 | 3.70 | 3.95 | 4.28 | 4.51 |
In sum, this douche has creatively been introduced binary channels and has been streamed runner in minute-pressure single-blade drip irrigation zone, provides more efficient effect of energy dissipation when douche easily stops up a difficult problem effectively solving; In addition, douche has also adopted the compacting of thin-walled macromolecular material one to form, and has reduced cost, and the little materials of volume are economized, and is easy to the field and arranges and collect, and has really accomplished low input, high yield.
Claims (6)
1. single-wing twin channel circumferential motion micropressure drip tape, it is characterized in that: it comprises aqueduct (1), the drip irrigation band edge wing (5) and n working cell, n 〉=1, the drip irrigation band edge wing (5) are attached on the aqueduct (1), and n working cell is distributed on the drip irrigation band edge wing (5);
Each working cell includes water inlet (2), binary channels is streamed runner (3) and delivery port (4), water inlet (2) is communicated with aqueduct (1), delivery port (4) is in communication with the outside, and streams runner (3) by binary channels between water inlet (2) and the delivery port (4) and is communicated with; Binary channels is streamed runner (3) and is made up of the sawtooth shape flow passage unit of continuous distributed.
2. single-wing twin channel circumferential motion micropressure drip tape according to claim 1 is characterized in that: the quantity of flow passage unit is between the 24-60, and the crown angle is 30 degree-60 degree.
3. single-wing twin channel circumferential motion micropressure drip tape according to claim 1 and 2 is characterized in that: water inlet (4) becomes 30-60 degree angle with the caliber of aqueduct (1).
4. single-wing twin channel circumferential motion micropressure drip tape according to claim 3 is characterized in that: each working cell spacing is that 150mm is to 300mm.
5. single-wing twin channel circumferential motion micropressure drip tape according to claim 3 is characterized in that: the centre of described flow passage unit is provided with boss (6), and runner outward flange (7) is the teeth shape of 30-60 degree for angle.
6. single-wing twin channel circumferential motion micropressure drip tape according to claim 5 is characterized in that: boss (6) be shaped as rhombus, rectangle or circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100467920A CN101229532A (en) | 2008-01-25 | 2008-01-25 | Single-wing twin channel circumferential motion micropressure drip tape |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100467920A CN101229532A (en) | 2008-01-25 | 2008-01-25 | Single-wing twin channel circumferential motion micropressure drip tape |
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| CN101229532A true CN101229532A (en) | 2008-07-30 |
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| CNA2008100467920A Pending CN101229532A (en) | 2008-01-25 | 2008-01-25 | Single-wing twin channel circumferential motion micropressure drip tape |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430488A (en) * | 2011-09-15 | 2012-05-02 | 中国农业大学 | Sheet irrigator for flood diversion and drip irrigation |
| CN102974485A (en) * | 2012-11-29 | 2013-03-20 | 新疆惠利灌溉科技有限公司 | Side-slit drip irrigation belt |
| CN105706854A (en) * | 2016-03-17 | 2016-06-29 | 西安交通大学 | Anti-blocking irrigation emitter based on cross-section double-circulation phenomenon of curve |
| CN104488666B (en) * | 2014-12-30 | 2016-09-28 | 苏芳 | A kind of special labyrinth bar, thin-walled drip irrigation pipe/belt and processing method thereof |
| CN106171847A (en) * | 2016-07-29 | 2016-12-07 | 大禹节水（天津）有限公司 | A kind of revolution flow passage drip irrigation belt |
| CN111096212A (en) * | 2018-10-25 | 2020-05-05 | 李科修 | Drip irrigation tape processing method and drip irrigation tape |
| CN113455344A (en) * | 2021-07-27 | 2021-10-01 | 山东大学 | Star-shaped labyrinth flow channel drip irrigation emitter |
-
2008
- 2008-01-25 CN CNA2008100467920A patent/CN101229532A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430488A (en) * | 2011-09-15 | 2012-05-02 | 中国农业大学 | Sheet irrigator for flood diversion and drip irrigation |
| CN102974485A (en) * | 2012-11-29 | 2013-03-20 | 新疆惠利灌溉科技有限公司 | Side-slit drip irrigation belt |
| CN104488666B (en) * | 2014-12-30 | 2016-09-28 | 苏芳 | A kind of special labyrinth bar, thin-walled drip irrigation pipe/belt and processing method thereof |
| CN105706854A (en) * | 2016-03-17 | 2016-06-29 | 西安交通大学 | Anti-blocking irrigation emitter based on cross-section double-circulation phenomenon of curve |
| CN105706854B (en) * | 2016-03-17 | 2019-04-12 | 西安交通大学 | A kind of anti-stifled douche of the bicyclic flow phenomenon in section based on bend |
| CN106171847A (en) * | 2016-07-29 | 2016-12-07 | 大禹节水（天津）有限公司 | A kind of revolution flow passage drip irrigation belt |
| CN111096212A (en) * | 2018-10-25 | 2020-05-05 | 李科修 | Drip irrigation tape processing method and drip irrigation tape |
| CN113455344A (en) * | 2021-07-27 | 2021-10-01 | 山东大学 | Star-shaped labyrinth flow channel drip irrigation emitter |
| CN113455344B (en) * | 2021-07-27 | 2022-07-01 | 山东大学 | Star-shaped labyrinth flow channel drip irrigation emitter |
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