WO2004034772A1 - Emisor autocompensante de riego por goteo, con dispositivo de flujo unidireccional - Google Patents
Emisor autocompensante de riego por goteo, con dispositivo de flujo unidireccional Download PDFInfo
- Publication number
- WO2004034772A1 WO2004034772A1 PCT/ES2003/000491 ES0300491W WO2004034772A1 WO 2004034772 A1 WO2004034772 A1 WO 2004034772A1 ES 0300491 W ES0300491 W ES 0300491W WO 2004034772 A1 WO2004034772 A1 WO 2004034772A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- self
- pipe
- compensating
- membrane
- emitter
- Prior art date
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
Definitions
- the object to which the invention is protected consists of a "self-compensating drip emitter, with a unidirectional flow device", that is, inside which the direction of movement of the circulation cannot be reversed. water, because it would become a suction element instead of emitter.
- Self-compensating drippers are known in which the outlet section varies with inverse proportionality with respect to pressure variations, ensuring that the irrigation flow rate is practically constant. This is achieved through the use of a peripheral elastic membrane that supports the external pressure of the water in the pipe in which the dropper is inserted, while a reduced pressure acts on its internal face, close to the outlet orifice. the passage of the liquid through a maze that causes loss of load.
- Said drippers are ordinarily placed inside elastic pipes in underground laying, a system that offers numerous advantages such as the absence of runoff and evaporation losses, the prevention of fungal infections in plants, but, above all, the ideal location of the water supply where it is necessary, next to the absorbent roots.
- a wet bulb usable in all its volume, and not as in surface drip systems, in which the volume of water that is poured near the surface is not used by the plant, since its system root is much lower.
- this system also presents a problem: the obstruction of the drippers when, due to a variation in the pressure in the pipes, the direction of the circulation of the liquid is reversed, creating a depression inside the pipe and a suction that, when the dripper is buried, causes the earth to enter and render it useless.
- the signature holder of this application is also the one of Invention Patent No. 9700396 in which the suction of soil particles that could be produced by the depression that is created in the pipe after the supply cut of water is effectively avoided thanks to a mobile ball integrated in the emitter, which acts as a particular "non-return valve".
- the essence of the invention consists in replacing the known spherical anti-suction valve. by a circular membrane of an elastomeric material that is deformed by increasing the pressure in the pipe until it is separated from its seat at the beginning of the irrigation, allowing the free passage of water.
- the main objective of the antisuction device is to prevent this reflux into the dripper and maintain as the only possible circulation, the unidirectionality towards the outside of the water vein.
- a mobile closure consisting of a diaphragm of an elastomeric material that, positioned in its corresponding housing and depending on the direction of the flow, is provided in the compensated outlet section of the water, You can move with enough excursion, from the compensated water outlet hole to the next stop zone.
- the outlet hole of the dripper has an external fillet in its outer circular perimeter that guarantees, in bistable connection with the membrane, the tight seal.
- bistability of the elastic plug is a function of the direction of the fluid flow that oppresses it, acting according to one of the two possible alternatives:
- a conventional self-compensating dropper inserted or installed in an emitting pipe, with its self-compensating membrane that facilitates the regulation of the flow in its chamber and its exit to the non-return zone, from which the flow circulates to the emission or discharge hole of the pipe.
- a conventional cover that acts as a filter to the passage of water through its narrow windows and as a support for the self-compensating membrane.
- Figure 1. It is a section of the claimed emitter, cut by a plane that passes through its longitudinal axis of symmetry, and divides it into two equal and symmetrical parts.
- Figure 2.- is an enlargement of the detail of Figure 1.
- the emitter is represented without service, with the two membranes (self-compensating and sealing diaphragm), at rest.
- Figure 3. Represents, in symmetrical longitudinal section, a possible exclusively formal variant of the emitter, in which its extreme zones have been simplified with respect to the corresponding formal characteristics of the emitter represented in Figure 1.
- Figure 4. Represents the claimed emitter, in symmetrical longitudinal section, showing the position of the membranes when the internal pressure in the pipe is greater than the external.
- the self-compensating membrane is pressing on the regulation slot that connects to the dropper outlet passage, performing its flow regulation function.
- the shutter diaphragm is displaced to its opening position against the fin stop, allowing the circulation and discharge of water flow.
- Figure 6. Represents the claimed emitter, in symmetrical longitudinal section, showing the position of the membranes when the internal pressure in the pipe is lower than the external one, which would lead to the reversal of the direction of flow of the flow, with the harmful consequences described, to avoid which the circular membrane blocks the passage of water, preventing suction.
- the claimed transmitter has integrated a discoidal membrane (10) that acts as a non-return valve, which fulfills its specific function when the external pressure is higher than the internal pressure in the emitting pipe, preventing water from entering the dripper by suction.
- the sealing diaphragm (10) When the external pressure is greater than the internal one of the pipe, to avoid that the flow is reversed, the sealing diaphragm (10) is compressed against its flat seat, preventing the entry of water and particles in suspension, from the outside to the dripper.
- a conventional self-compensating dropper (1) inserted or installed in a transmitter pipe (2), with its self-compensating membrane (3) that facilitates the regulation of the flow in the chamber (4) and its exit through the passage (5) to the non-return zone (6), from which circulates the flow through the channel (7) towards the orifice (8) of emission or discharge of the pipe (2).
- a conventional cover (9) that acts as a filter to the passage of water through its narrow windows and as a support for the self-compensating membrane (3).
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Safety Valves (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Nozzles (AREA)
- External Artificial Organs (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Reciprocating Pumps (AREA)
- Paper (AREA)
- Flow Control (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003268963A AU2003268963A1 (en) | 2002-10-02 | 2003-09-29 | Self-compensating drip irrigation emitter comprising a unidirectional flow device |
DE60318079T DE60318079D1 (de) | 2002-10-02 | 2003-09-29 | Tropfenbewässerungseinrichtung mit druckausgleich und unidirektionaler strömungsvorrichtung |
US10/530,127 US20060163388A1 (en) | 2002-10-02 | 2003-09-29 | Self-compensating drip irrigation emitter, comprising a unidirectional flow device |
EP03750740A EP1547461B8 (en) | 2002-10-02 | 2003-09-29 | Self-compensating drip irrigation emitter comprising a unidirectional flow device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200202242A ES2223241B1 (es) | 2002-10-02 | 2002-10-02 | Emisor autocompensante de riego por goteo, con dispositivo de flujo unidireccional. |
ESP200202242 | 2002-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004034772A1 true WO2004034772A1 (es) | 2004-04-29 |
Family
ID=32104075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2003/000491 WO2004034772A1 (es) | 2002-10-02 | 2003-09-29 | Emisor autocompensante de riego por goteo, con dispositivo de flujo unidireccional |
Country Status (8)
Country | Link |
---|---|
US (1) | US20060163388A1 (es) |
EP (1) | EP1547461B8 (es) |
AT (1) | ATE380463T1 (es) |
AU (1) | AU2003268963A1 (es) |
DE (1) | DE60318079D1 (es) |
ES (1) | ES2223241B1 (es) |
WO (1) | WO2004034772A1 (es) |
ZA (1) | ZA200503315B (es) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006105364A2 (en) * | 2005-03-31 | 2006-10-05 | Rain Bird Corporation | Drip emitter |
US7648085B2 (en) | 2006-02-22 | 2010-01-19 | Rain Bird Corporation | Drip emitter |
IL177552A (en) * | 2006-08-17 | 2014-08-31 | Ron Keren | Irrigation Pipe |
US7681810B2 (en) * | 2008-02-21 | 2010-03-23 | Netafim, Ltd. | Irrigation emitter |
ES1067494Y (es) | 2008-03-10 | 2008-08-16 | Mondragon Soluciones S L U | Dispositivo antisuccion aplicable a goteros integrados |
US8372326B2 (en) | 2008-10-20 | 2013-02-12 | D.R.T.S. Enterprises Ltd. | Pressure compensated non-clogging drip emitter |
US7988076B2 (en) * | 2008-10-20 | 2011-08-02 | D.R.T.S. Enterprises Ltd. | Non-clogging non-pressure compensated drip emitter |
US8628032B2 (en) | 2008-12-31 | 2014-01-14 | Rain Bird Corporation | Low flow irrigation emitter |
EP2424682A1 (en) | 2009-05-01 | 2012-03-07 | D.R.T.S. Enterprises, Ltd. | Internally pressure compensated non-clogging drip emitter |
US20100282873A1 (en) * | 2009-05-06 | 2010-11-11 | Mattlin Jeffrey L | Drip Emitter and Methods of Assembly and Mounting |
AU2011216852B2 (en) * | 2010-02-18 | 2015-11-19 | Netafim Ltd | Drip irrigation emitter |
AU2012235793B2 (en) * | 2011-03-30 | 2016-12-15 | Netafim Ltd | Irrigation valve |
US9485923B2 (en) | 2012-03-26 | 2016-11-08 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
US10440903B2 (en) | 2012-03-26 | 2019-10-15 | Rain Bird Corporation | Drip line emitter and methods relating to same |
US20130248622A1 (en) | 2012-03-26 | 2013-09-26 | Jae Yung Kim | Drip line and emitter and methods relating to same |
US9877440B2 (en) | 2012-03-26 | 2018-01-30 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
US9872444B2 (en) | 2013-03-15 | 2018-01-23 | Rain Bird Corporation | Drip emitter |
US10285342B2 (en) | 2013-08-12 | 2019-05-14 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
USD811179S1 (en) | 2013-08-12 | 2018-02-27 | Rain Bird Corporation | Emitter part |
US10631473B2 (en) | 2013-08-12 | 2020-04-28 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
US9307705B2 (en) * | 2013-10-02 | 2016-04-12 | Eurodrip Industrial Commercial Agricultural Societe Anonyme | Pressure compensating drip irrigation emitter |
US9883640B2 (en) | 2013-10-22 | 2018-02-06 | Rain Bird Corporation | Methods and apparatus for transporting elastomeric emitters and/or manufacturing drip lines |
CN105792637B (zh) * | 2013-11-27 | 2019-12-27 | 恩普乐股份有限公司 | 发射器和滴灌用输送管 |
US10034439B2 (en) * | 2013-11-27 | 2018-07-31 | Enplas Corporation | Emitter and drip irrigation tube |
WO2015080127A1 (ja) * | 2013-11-27 | 2015-06-04 | 株式会社エンプラス | エミッタおよび点滴灌漑用チューブ |
US10330559B2 (en) | 2014-09-11 | 2019-06-25 | Rain Bird Corporation | Methods and apparatus for checking emitter bonds in an irrigation drip line |
JP6532757B2 (ja) * | 2015-05-28 | 2019-06-19 | 株式会社エンプラス | エミッタおよび点滴灌漑用チューブ |
WO2017007436A1 (en) * | 2015-07-03 | 2017-01-12 | İsko Plasti̇k Ve Kalip Sanayi̇ Ti̇caret Anoni̇m Şi̇rketi̇ | Development for round pressure regulating dripper as used in irrigation pipes |
JP6689634B2 (ja) * | 2016-03-17 | 2020-04-28 | 株式会社エンプラス | エミッタおよび点滴灌漑用チューブ |
US10375904B2 (en) | 2016-07-18 | 2019-08-13 | Rain Bird Corporation | Emitter locating system and related methods |
WO2018140772A1 (en) | 2017-01-27 | 2018-08-02 | Rain Bird Corporation | Pressure compensation members, emitters, drip line and methods relating to same |
US10626998B2 (en) * | 2017-05-15 | 2020-04-21 | Rain Bird Corporation | Drip emitter with check valve |
JP2019071855A (ja) * | 2017-10-18 | 2019-05-16 | 株式会社エンプラス | エミッタおよび点滴灌漑用チューブ |
USD883048S1 (en) | 2017-12-12 | 2020-05-05 | Rain Bird Corporation | Emitter part |
US11985924B2 (en) | 2018-06-11 | 2024-05-21 | Rain Bird Corporation | Emitter outlet, emitter, drip line and methods relating to same |
CN108812218B (zh) * | 2018-07-05 | 2023-09-15 | 华维节水科技集团股份有限公司 | 一种压力补偿微喷灌水器 |
US11864502B2 (en) * | 2018-07-26 | 2024-01-09 | Enplas Corporation | Emitter and drip irrigation tube |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996024243A1 (en) * | 1995-02-07 | 1996-08-15 | Emmanuil Dermitzakis | New emitter unit forms |
WO1998010635A1 (en) * | 1996-09-11 | 1998-03-19 | Plastro Gvat | A flow-regulating element and drip irrigation units utilizing same |
WO2001064019A2 (en) * | 2000-02-28 | 2001-09-07 | Emmanuil Dermitzakis | Emitter with water inlet filter and method of assembly thereof |
US20020070297A1 (en) * | 2000-04-06 | 2002-06-13 | Christos Bolinis | Self-cleaning, pressure compensating, irrigation drip emitter |
WO2002085101A1 (en) * | 2001-04-20 | 2002-10-31 | Irritec S.R.L. | Self-compensating drip irrigation emitter |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5400973A (en) * | 1993-07-30 | 1995-03-28 | Cohen; Amir | Pressure responsive regulated flow restrictor useful for drip irrigation |
US5628462A (en) * | 1995-08-15 | 1997-05-13 | Miller; David B. | Drip irrigation emitter |
IL121967A (en) * | 1997-10-14 | 2001-06-14 | Hydro Plan Eng Ltd | Irrigation output unit |
IL122777A (en) * | 1997-12-28 | 2003-12-10 | Amir Cohen | Valve controlled drip irrigation lines |
IL131716A (en) * | 1998-12-21 | 2006-09-05 | Amir Cohen | Drip irrigation emitters |
-
2002
- 2002-10-02 ES ES200202242A patent/ES2223241B1/es not_active Expired - Fee Related
-
2003
- 2003-09-29 WO PCT/ES2003/000491 patent/WO2004034772A1/es active IP Right Grant
- 2003-09-29 US US10/530,127 patent/US20060163388A1/en not_active Abandoned
- 2003-09-29 EP EP03750740A patent/EP1547461B8/en not_active Expired - Lifetime
- 2003-09-29 DE DE60318079T patent/DE60318079D1/de not_active Expired - Lifetime
- 2003-09-29 AU AU2003268963A patent/AU2003268963A1/en not_active Abandoned
- 2003-09-29 AT AT03750740T patent/ATE380463T1/de not_active IP Right Cessation
-
2005
- 2005-04-25 ZA ZA200503315A patent/ZA200503315B/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996024243A1 (en) * | 1995-02-07 | 1996-08-15 | Emmanuil Dermitzakis | New emitter unit forms |
WO1998010635A1 (en) * | 1996-09-11 | 1998-03-19 | Plastro Gvat | A flow-regulating element and drip irrigation units utilizing same |
WO2001064019A2 (en) * | 2000-02-28 | 2001-09-07 | Emmanuil Dermitzakis | Emitter with water inlet filter and method of assembly thereof |
US20020070297A1 (en) * | 2000-04-06 | 2002-06-13 | Christos Bolinis | Self-cleaning, pressure compensating, irrigation drip emitter |
WO2002085101A1 (en) * | 2001-04-20 | 2002-10-31 | Irritec S.R.L. | Self-compensating drip irrigation emitter |
Also Published As
Publication number | Publication date |
---|---|
ES2223241A1 (es) | 2005-02-16 |
ES2223241B1 (es) | 2006-05-16 |
EP1547461A1 (en) | 2005-06-29 |
EP1547461B1 (en) | 2007-12-12 |
EP1547461B8 (en) | 2008-03-26 |
US20060163388A1 (en) | 2006-07-27 |
AU2003268963A1 (en) | 2004-05-04 |
ATE380463T1 (de) | 2007-12-15 |
ZA200503315B (en) | 2006-08-30 |
DE60318079D1 (de) | 2008-01-24 |
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