WO2022188277A1 - Émetteur d'irrigation goutte à goutte et système d'irrigation goutte à goutte - Google Patents

Émetteur d'irrigation goutte à goutte et système d'irrigation goutte à goutte Download PDF

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Publication number
WO2022188277A1
WO2022188277A1 PCT/CN2021/097582 CN2021097582W WO2022188277A1 WO 2022188277 A1 WO2022188277 A1 WO 2022188277A1 CN 2021097582 W CN2021097582 W CN 2021097582W WO 2022188277 A1 WO2022188277 A1 WO 2022188277A1
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WO
WIPO (PCT)
Prior art keywords
flow channel
drip irrigation
main
channel
main flow
Prior art date
Application number
PCT/CN2021/097582
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English (en)
Chinese (zh)
Inventor
王振华
王越
刘宁宁
谭明东
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石河子大学
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Application filed by 石河子大学 filed Critical 石河子大学
Publication of WO2022188277A1 publication Critical patent/WO2022188277A1/fr

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • 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
    • 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

Definitions

  • the present application relates to the technical field of drip irrigation, in particular to a drip irrigation emitter and a drip irrigation system.
  • the drip irrigation emitter is the core component of the drip irrigation system.
  • the hydraulic performance and anti-clogging ability of the emitter directly determine the irrigation quality and system life of the drip irrigation project. Therefore, the reasonable design of the drip irrigation emitter and the improvement of its anti-clogging ability and hydraulic performance will improve the drip irrigation system. It is of great significance to improve the performance of the system, improve the service life of the system, and reduce the cost of the system.
  • the flow channel of the drip irrigation sprinkler in the prior art usually adopts a labyrinth, and the turbulent flow is mainly decompressed by the complicated boundary conditions of the flow channel, wherein the boundary conditions of the flow channel are usually formed by a straight line and an arc shape.
  • the size of the above-mentioned labyrinth flow channel is small and is formed based on Euclidean geometry theory. Therefore, the degree of turbulence caused by the water flow is also limited, and the turbulent decompression effect obtained for this is also limited.
  • the technical problem to be solved by this application is that the complexity of overcoming the boundary of the flow channel in the prior art is limited, so that the degree of turbulent water flow is also limited, and the turbulent decompression effect obtained for this reason is also limited. Defects, thereby providing a drip irrigation sprinkler and drip irrigation system.
  • a drip irrigation sprinkler comprising:
  • the flow channel unit includes a first main flow channel, a second main flow channel and a plurality of branch flow channels arranged in communication, the first main flow channel
  • the second main flow channel is arranged near the water inlet
  • the second main flow channel is arranged near the water outlet
  • the branch flow channel is arranged between the first main flow channel and the second main flow channel
  • the branch flow channel is arranged along the The tangential or radial arrangement of the second main channel.
  • the flow channel unit further includes a third main flow channel, the third main flow channel is arranged on the side of the first main flow channel close to the water inlet, and the side wall of the third main flow channel is far away from the water inlet.
  • the direction of the water inlet is gradually expanded.
  • the third main flow channel is provided in the first circular truncated structure.
  • the first main flow channel is provided in a prismatic structure, one end of the branch flow channel is disposed at the corner of the prismatic structure, and the other end is communicated with the second main flow channel.
  • edges and corners are provided with a first arc-shaped structure, and the ends of the branch flow channels near the edges and corners are provided with a second arc-shaped structure.
  • the flow channel unit further includes a guide flow channel disposed corresponding to the branch flow channel, and the guide flow channel communicates with the first main flow channel and the branch flow channel.
  • the guide flow channel is provided in the first cylindrical structure.
  • the second main channel includes a second cylindrical structure and a second circular truncated structure arranged in sequence along the direction away from the water inlet, and the second circular truncated structure is gradually converged along the direction away from the water inlet.
  • the flow channel unit further includes a fourth main flow channel, which is arranged on a side of the second circular truncated structure away from the water inlet, and the fourth main flow channel is arranged in a third cylindrical structure.
  • a drip irrigation system includes the drip irrigation sprinkler as described above.
  • a drip irrigation device provided by this application includes: a water inlet; a water outlet; a plurality of flow channel units, which are arranged between the water inlet and the water outlet, and the flow channel unit A main flow channel, a second main flow channel and a plurality of branch flow channels, the first main flow channel is arranged close to the water inlet, the second main flow channel is arranged close to the water outlet, and the branch flow channels are arranged at the water inlet. Between the first main flow channel and the second main flow channel, the branch flow channels are arranged along the tangential direction or the radial direction of the second main flow channel.
  • a drip irrigation sprinkler with this structure when the water flow enters the first main channel, it impacts the first main channel to dissipate energy, and then forms a split flow through the branch channel to achieve energy dissipation, and then enters the second main channel tangentially to form a vortex Perform eddy current energy dissipation, or radially enter the second main channel for hedging energy dissipation and turbulent energy dissipation, to achieve a better energy dissipation effect, and the energy dissipation effect is not limited by the size of the runner, and can be compared to the background The size of the flow channel of the drip irrigation sprinkler in the technology is appropriately increased, which can ensure the energy dissipation effect and enhance the anti-clogging performance at the same time.
  • the flow channel unit further comprises a third main flow channel, the third main flow channel is arranged on the side of the first main flow channel close to the water inlet, and the first main flow channel is The side walls of the three main channels are gradually expanded along the direction away from the water inlet.
  • a drip irrigation irrigator of this structure is provided with a third main channel, so that the water flow can enter the first main channel smoothly, so as to avoid the occurrence of blockage caused by dead water area, thereby reducing the occurrence of blockage in the first main channel. possibility.
  • a drip irrigation sprinkler provided by the present application, wherein the edges and corners are provided with a first arc-shaped structure, and the ends of the branch flow channels close to the edges and corners are provided with a second arc-shaped structure.
  • a drip irrigation sprinkler with this structure is provided with a first arc structure and a second arc structure to avoid the occurrence of clogging due to dead water areas.
  • the second main channel comprises a second cylindrical structure and a second truncated truncated structure arranged in a direction away from the water inlet, and the second truncated truncated structure is arranged along a direction away from the water inlet.
  • the direction of the water inlet is gradually convergent.
  • the water flow enters the second cylindrical structure and the second truncated truncated structure tangentially to form a vortex for eddy current energy dissipation, or the water flow enters the second cylindrical structure radially for hedging and energy dissipation. Then enter the second truncated truncated structure to further dissipate energy by turbulent flow, so as to achieve a better energy dissipation effect.
  • a drip irrigation system provided by the present application comprising the above-mentioned drip irrigation emitter.
  • a drip irrigation sprinkler of this structure because it includes the above drip irrigation sprinkler, naturally has the advantages brought about by including the above drip irrigation sprinkler.
  • Fig. 1 is the structural representation of the drip irrigation device provided in the embodiment 1 of this application;
  • Fig. 2 is the partial enlarged view of A place shown in Fig. 1;
  • Fig. 3 is the bottom view partial enlarged view of the drip irrigation irrigator shown in Fig. 1;
  • Fig. 4 is the bottom view of the drip irrigation device shown in Fig. 1;
  • Fig. 5 is the cross-sectional streamline diagram of the second cylindrical structure and the branch flow channel when tangentially arranged as shown in Fig. 1;
  • FIG. 6 is a cross-sectional velocity vector diagram of the second cylindrical structure and the branch flow channel when the tangential arrangement shown in FIG. 1 is shown;
  • Fig. 7 is the cross-sectional streamline diagram of the second cylindrical structure and the branch flow channel in the radial arrangement shown in Fig. 1;
  • Fig. 8 is a partial schematic view of the drip irrigation emitter shown in Fig. 1;
  • Fig. 9 is the pressure flow relation diagram of the drip irrigation sprinkler shown in Fig. 1;
  • 1-water inlet channel 11-water inlet, 2-water outlet channel, 21-water outlet, 3-channel unit, 31-third main channel, 32-first main channel, 321-first arc structure, 33-Guide flow channel, 34-Branch flow channel, 341-Second arc structure, 35-Second main channel, 351-Second cylindrical structure, 352-Second circular truncated structure, 36-Fourth main channel .
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • This embodiment provides a drip irrigation device as shown in FIG. 1 to FIG. 8 , including a water inlet 11 , a water outlet 21 , and a plurality of flow channel units 3 , wherein the plurality of flow channel units 3 are arranged between the water inlet 11 and the water outlet 21 . between.
  • the water inlet 11 is provided on the water inlet channel 1
  • the water outlet 21 is provided on the water outlet channel 2
  • the plurality of channel units 3 communicate with the water inlet channel 1 and the water outlet channel 2 .
  • each flow channel unit 3 includes a third main channel 31 , a first main channel 32 , a second main channel 35 , a fourth main channel 36 , a plurality of guide channels and a plurality of a branch flow channel 34 .
  • the third main flow channel 31 , the first main flow channel 32 , the guide channel, the branch flow channel 34 , the second main flow channel 35 and the fourth main flow channel 36 are sequentially arranged along the direction away from the water inlet 11 . It should be noted that the direction away from the water inlet 11 refers to the direction from top to bottom in FIG. 1 .
  • each flow channel unit 3 may also be configured not to include the third main flow channel 31 and/or the guide flow channel 33 and/or the fourth main flow channel 36 .
  • the first main flow channel 32 is arranged near the water inlet 11
  • the second main flow channel 35 is arranged near the water outlet 21
  • the branch flow channel 34 is arranged between the first main flow channel 32 and the second main flow channel 35 .
  • the branch flow channels 34 are arranged along the tangential or radial direction of the second main flow channel 35 , as shown in FIG. 4 to FIG. 6 , for tangential arrangement, and as shown in FIGS.
  • the first main flow channel 32 is provided in a prismatic structure, one end of the branch flow channel 34 is disposed at the corner of the prismatic structure, and the other end is communicated with the second main flow channel 35 .
  • the prismatic structure is a triangular prismatic structure or others, and the branch flow channels 34 are provided with three or other numbers.
  • the edges and corners are provided with the first arc-shaped structures 321
  • the ends of the branch flow channels 34 near the edges and corners are provided with the second arc-shaped structures 341 .
  • the tangential arrangement means that the extension direction of the branch flow channel is tangent to the second main flow channel 35
  • the radial arrangement means that the extension direction of the branch flow channel passes through the center of the second main flow channel 35 .
  • the third main channel 31 is disposed on the side of the first main channel 32 close to the water inlet 11 , and the side wall of the third main channel 31 is gradually expanded along the direction away from the water inlet 11 .
  • the third main flow channel 31 is provided in the first circular truncated structure.
  • the guide flow channel 33 and the branch flow channel 34 are arranged correspondingly, and the guide flow channel 33 communicates with the first main flow channel 32 and the branch flow channel 34 .
  • the guide flow channels 33 are provided with three or other numbers, and the guide flow channels 33 are provided in the first cylindrical structure.
  • the second main channel 35 includes a second cylindrical structure 351 and a second truncated truncated structure 352 arranged in sequence along the direction away from the water inlet 11 , and the second truncated truncated structure 352 gradually converges along the direction away from the water inlet 11 . set up.
  • the water flow enters the second cylindrical structure 351 and the second truncated circular structure 352 tangentially to form a vortex to dissipate eddy current energy, or the water flow enters the second cylindrical structure 351 radially for hedging and energy dissipation before entering the second circle.
  • the turbulent energy dissipation is further carried out in the mesa-shaped structure 352 to achieve a better energy dissipation effect.
  • the fourth main flow channel 36 is disposed on the side of the second circular truncated structure 352 away from the water inlet 11 , and the fourth main flow channel 36 is disposed in the third cylindrical structure.
  • each of the above-mentioned flow channel units 3 may be 5.1 mm or other dimensions, and the diameters of the water inlet flow channel 1 and the water outlet flow channel 2 are both 0.7 mm or other dimensions; the diameter of the inlet end of the first circular truncated structure 0.7 mm or other size, the diameter of the outlet end is 2.1 mm or other size, and the height is 0.7 mm or other size; the side length of the equilateral triangle in the triangular prism structure is 6 mm or other size, and the height is 0.7 mm or Other dimensions, and the radius of the first arc structure 321 is 0.5 mm or other dimensions; the diameter of the first cylindrical structure is 1 mm or other dimensions, and the height is 0.1 mm or other dimensions; the branch flow channel 34 is 1 mm in diameter Or a combination of a second arc-shaped structure 341 of other dimensions and a terrace with a base length of 1 mm or other dimensions and a width of 0.7 mm or other dimensions; the
  • a drip irrigation sprinkler of the present application when the water flow enters the first main channel 32, it impacts the first main channel 32 to dissipate energy, and then forms a split flow through the branch channel 34 to realize energy dissipation, and then tangentially enters the second main channel 32.
  • a vortex is formed in the main channel 35 for vortex energy dissipation, wherein a vortex is formed in the second cylindrical structure 351, and the vortex is fully developed in the second truncated truncated structure 352, so that the vortex is used for energy dissipation; or radially enters the second main flow Hedge energy dissipation and turbulent energy dissipation are carried out in the channel 35, wherein a hedging is formed in the second cylindrical structure 351, and the hedging is used to dissipate energy, and then the water flow is fully turbulent in the second truncated truncated structure 352;
  • the energy dissipation effect which is not limited by the size of the flow channel, can be appropriately increased compared to the size of the flow channel of the drip irrigation emitter in the background technology, which can ensure the energy dissipation effect and enhance the anti-clogging performance at the same time. .
  • This embodiment provides a drip irrigation system, including the drip irrigation sprinkler in Embodiment 1.

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental Sciences (AREA)
  • Nozzles (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

L'invention concerne un émetteur d'irrigation goutte à goutte comprenant : une entrée d'eau (11) ; une sortie d'eau (21) ; et une pluralité d'unités de canal d'écoulement (3) disposées entre l'entrée d'eau (11) et la sortie d'eau (21), chaque unité de canal d'écoulement (3) comprenant un premier canal d'écoulement principal (32), un second canal d'écoulement principal (35), et une pluralité de canaux d'écoulement ramifiés (34) qui sont disposés en communication les uns avec les autres, le premier canal d'écoulement principal (32) étant disposé à proximité de l'entrée d'eau (11), le second canal d'écoulement principal (35) étant disposé à proximité de la sortie d'eau (21), les canaux d'écoulement ramifiés (34) étant disposés entre le premier canal d'écoulement principal (32) et le second canal d'écoulement principal (35), et les canaux d'écoulement ramifiés (34) étant disposés le long de la direction tangentielle ou de la direction radiale du second canal d'écoulement principal (35). Un système d'irrigation goutte-à-goutte comprenant l'émetteur d'irrigation goutte à goutte est également divulgué. L'émetteur d'irrigation goutte à goutte permet d'obtenir un bon effet de dissipation d'énergie qui n'est pas limité par la taille d'un canal d'écoulement.
PCT/CN2021/097582 2021-03-09 2021-06-01 Émetteur d'irrigation goutte à goutte et système d'irrigation goutte à goutte WO2022188277A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110257400.0A CN112931157B (zh) 2021-03-09 2021-03-09 一种滴灌灌水器和滴灌系统
CN202110257400.0 2021-03-09

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WO2022188277A1 true WO2022188277A1 (fr) 2022-09-15

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2005339523A1 (en) * 2005-12-27 2007-07-05 Netafim Ltd. Fluid flow control regulator
CN102500482A (zh) * 2011-10-25 2012-06-20 中国农业大学 一种叠片式自适应滴灌灌水器及其使用方法
CN102527532A (zh) * 2012-01-11 2012-07-04 西北农林科技大学 一种大流量压力补偿式滴灌灌水器
CN202406690U (zh) * 2011-12-31 2012-09-05 新疆泓科节水设备制造有限公司 新型消能滴头流道机构
WO2017077527A1 (fr) * 2015-11-04 2017-05-11 Terracuity Technologies Ltd. Émetteur d'irrigation goutte-à-goutte, tuyau d'irrigation avec une pluralité d'émetteurs de ce type, procédé de production de ces émetteurs et procédé d'irrigation les utilisant
CN109673482A (zh) * 2019-02-26 2019-04-26 中国农业科学院农业环境与可持续发展研究所 一种滴灌灌水器以及滴灌带
US20190255465A1 (en) * 2018-02-19 2019-08-22 Magnatronix Corporation Irrigation Coupling with Integral Filter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2005339523A1 (en) * 2005-12-27 2007-07-05 Netafim Ltd. Fluid flow control regulator
CN102500482A (zh) * 2011-10-25 2012-06-20 中国农业大学 一种叠片式自适应滴灌灌水器及其使用方法
CN202406690U (zh) * 2011-12-31 2012-09-05 新疆泓科节水设备制造有限公司 新型消能滴头流道机构
CN102527532A (zh) * 2012-01-11 2012-07-04 西北农林科技大学 一种大流量压力补偿式滴灌灌水器
WO2017077527A1 (fr) * 2015-11-04 2017-05-11 Terracuity Technologies Ltd. Émetteur d'irrigation goutte-à-goutte, tuyau d'irrigation avec une pluralité d'émetteurs de ce type, procédé de production de ces émetteurs et procédé d'irrigation les utilisant
US20190255465A1 (en) * 2018-02-19 2019-08-22 Magnatronix Corporation Irrigation Coupling with Integral Filter
CN109673482A (zh) * 2019-02-26 2019-04-26 中国农业科学院农业环境与可持续发展研究所 一种滴灌灌水器以及滴灌带

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CN112931157A (zh) 2021-06-11

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