EP2887794A2 - Tuyau d'irrigation - Google Patents

Tuyau d'irrigation

Info

Publication number
EP2887794A2
EP2887794A2 EP13753157.0A EP13753157A EP2887794A2 EP 2887794 A2 EP2887794 A2 EP 2887794A2 EP 13753157 A EP13753157 A EP 13753157A EP 2887794 A2 EP2887794 A2 EP 2887794A2
Authority
EP
European Patent Office
Prior art keywords
irrigation
hose
openings
laser
web
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.)
Withdrawn
Application number
EP13753157.0A
Other languages
German (de)
English (en)
Inventor
Peter Eberle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aqua Vital Int Ltd & Co KG
Original Assignee
Aqua Vital Int Ltd & Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aqua Vital Int Ltd & Co KG filed Critical Aqua Vital Int Ltd & Co KG
Publication of EP2887794A2 publication Critical patent/EP2887794A2/fr
Withdrawn legal-status Critical Current

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
    • 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
    • A01G25/06—Watering arrangements making use of perforated pipe-lines located in the soil

Definitions

  • the invention relates to an irrigation hose for irrigating soils and to a method and a plant for producing such an irrigation hose.
  • an irrigation hose made of plastic, for example polyethylene, which has holes at regular intervals, which are in communication with a dripping device in the interior of the hose. Irrigation water is transported to the outside via the drip device of the respective holes so as to irrigate the soil in the vicinity of the respective holes.
  • a watering hose is very expensive to manufacture, which eventually sells the watering hose expensive and therefore their use in agriculture, in which large areas have to be irrigated, appear economically questionable.
  • irrigation hose must initially be charged with a very high water pressure so that the irrigation hose can deliver irrigation water over its entire length over the holes provided. Due to the water connections used in agriculture and the standard water pressure available there, which is relatively low, such irrigation hoses must be equipped with devices which increase the irrigation water pressure. If, in addition, a long distance or a large area is to be watered and the irrigation hose used for this purpose is very long, then such devices must be provided within the laid irrigation hose at regular intervals so that the irrigation water can also be led to the end of the irrigation hose can.
  • irrigation hoses are made of a rubber granulate, which then have a very porous surface structure. Due to this porous surface structure, irrigation water, which is fed into the hose with a very high water pressure, can escape or sweat out, which supplies the nearer environment of the irrigation hose with water.
  • Such an irrigation hose made of rubber granules is known, for example, from DE 1 0 2009 033 793 A1.
  • the disadvantage is that the production of an irrigation hose made of rubber granules material is very costly, because not least large quantities of rubber granules for a meter irrigation required.
  • the irrigation hose must be charged to its purpose, be charged with a very high pressure, which eventually makes the use of water pressure increasing devices necessary. Even with such an irrigation hose made of rubber granulate ultimately an economically and ecologically meaningful irrigation is not possible.
  • an irrigation hose for irrigating trays of a material comprising a thermoplastic material with a provided on the irrigation hose water supply opening for supplying irrigation water and with a plurality of distributed at the circumference of the irrigation hose irrigation openings, which for the controlled delivery of the the irrigation hose supplied irrigation water to the ground are set up.
  • the irrigation openings are made by means of a laser.
  • the irrigation hose according to the invention thus consists of a material which has a thermoplastic material, for example polyethylene or polypropylene. At the circumference of the irrigation hose small irrigation openings are provided, which in the irrigation hose introduced via a water supply opening irrigation water controlled to give the environment.
  • the irrigation openings are made by a laser.
  • This has the advantage that the irrigation openings can be formed very easily and cost-effectively, since a laser in the thermoplastic material can very quickly and precisely produce the necessary irrigation openings.
  • the use of a thermoplastic material can reduce the total material costs, since they are cheaper and easier to process than other materials.
  • the laser can be used to produce very small irrigation openings, making it easier to control the water output in a better and more targeted manner. As a result, a lower water pressure when supplying the irrigation water used or the effective length of
  • Hose can be increased so that water pressure increasing devices are no longer needed. The efficiency both ecologically and economically when using such irrigation techniques is drastically increased.
  • thermoplastic material When using a thermoplastic material can be so fast and targeted smallest irrigation openings, for example, less than 50 ⁇ , preferably less than 30 ⁇ produce.
  • a soil to be irrigated in the sense of the present invention can be, for example, an agricultural area, soils in garden centers or private gardens, such as, for example, lawns.
  • the mean water passage area of the irrigation openings per unit length of the irrigation hose in the direction of flow of the irrigation water in a predefined hose section is increasing.
  • the mean water passage area at the beginning of the hose section may be smaller than at its end, whereby a uniform delivery of the irrigation water is achieved.
  • a further advantage is that the length of the irrigation hose or the predefined irrigation hose section can be increased since the initial pressure drop compared to conventional irrigation hoses is relatively low and thus the water pressure over the length of the irrigation hose or the predefined hose section is long is maintained.
  • Such a watering hose is thus extremely effective and economical in use.
  • the mean water passage area of the irrigation openings per unit length indicates the ratio between the water passage area of the irrigation openings to a certain length of the irrigation hose or the predefined hose section.
  • the length unit should be greater than the maximum distance between two irrigation openings in the direction of flow, preferably the unit length should be greater than the average distance between the holes in the flow direction.
  • the predefined hose section should be a multiple of the length unit, up to the total length of the irrigation hose.
  • the increase in the mean water passage area of the irrigation openings per unit length can be achieved, for example, by increasing the mean number and / or average diameter of the irrigation openings per unit length of the irrigation hose in the direction of flow of the irrigation water in the predefined hose section, so that an increase in the mean water passage area of the irrigation hose Irrigation openings per unit length results.
  • the mean number and / or the mean diameter of the irrigation openings is smaller than in a rear tube section, wherein the front tube section and the rear tube section need not be overlapping.
  • the pressure drop through the previous irrigation ports and the loss of irrigation water from the hose is balanced so that over the entire Length of the hose or over the entire
  • Hose section can achieve a uniform water output.
  • the irrigation hose consists of a material in which the thermoplastic material is a polyolefins, preferably a polyethylene or polypropylene.
  • the thermoplastic material may also be a polyvinyl chloride, a polystyrene or a copolymer.
  • the diameter of the irrigation openings is less than 50 ⁇ m, preferably less than 30 ⁇ m.
  • the dispensing of the quantity of water can be regulated in a very targeted manner, whereby the pressure equalization via the increase in the mean water passage area can be regulated much more finely.
  • the irrigation openings have an opening court around the respective water passage surface, which is arched outwards relative to the peripheral surface of the irrigation hose. As a result, unwanted closures of the irrigation openings, for example caused by dirt or dirt particles, can be avoided.
  • the object is also achieved with a method for producing such an irrigation hose for irrigating soils, in which a material of the irrigation hose has a thermoplastic material, wherein the material of the irrigation hose with a laser of a laser device for forming irrigation openings at predefined locations is perforated.
  • the term material of the irrigation hose is understood to mean the material from which the hose is or will be formed.
  • the irrigation orifices can be produced before production of the tube in a sheet material, during the production of the tube in a curved material or after the production of the tube into a tubular material by means of perforation by the laser.
  • the material of the material in this case has a thermoplastic material.
  • the material is perforated by means of the laser in such a way that the diameter of the irrigation openings is less than 50 ⁇ m, preferably less than 30 ⁇ m.
  • the thermoplastic material of the material comprises a polyolefin, preferably a polyethylene or polypropylene. It is also conceivable that the thermoplastic material is a polyvinyl chloride, a polystyrene or a copolymer.
  • the material is perforated at the predefined locations by means of the laser of the laser device such that the mean water passage area of the irrigation openings per unit length of the formed irrigation hose increases in the direction of flow of the irrigation water in a predefined hose section.
  • the varying of the mean water passage area of the irrigation openings can, for example, take place such that the mean number and / or the mean diameter of the irrigation openings per unit length of the irrigation hose or of the predefined hose section increases, which then results in an increase of the mean water passage area of the irrigation openings per unit length ,
  • the predefined locations at which the material is to be perforated by means of the laser of the laser device to form the irrigation depending on an irrigation water to be produced on the irrigation hose to be manufactured and / or a hose length of the irrigation hose to be produced by means of a Calculated unit, so that can be produced for the given boundary parameters water pressure and / or hose length an optimal irrigation hose.
  • irrigation hoses for different applications can be targeted so that the delivery of water over the entire length of the irrigation hose is substantially consistent.
  • the method is characterized by the steps of: a) providing the material of thermoplastic material as a material web,
  • the irrigation hose is produced from a flat material web which can be produced particularly cost-effectively when using thermoplastics.
  • a material web may be, for example, a film made of thermoplastic material.
  • the material web can be provided, for example, on a roll, as it is produced for example by an extruder machine.
  • the material for producing the irrigation hose is provided as a flat material web.
  • the laser device has a laser and a laser control.
  • the supplied material web is now perforated at predefined locations, so as to form the later irrigation openings.
  • the laser device may have a planar plane on which the material web is unwound and transported, wherein during transport of the material web over the planar plane then with the help of the laser of the laser device, the material web is perforated at predefined locations, so as to form the irrigation openings ,
  • air openings may be located on the underside of the plane. with which an air cushion between the web and the flat plane can be built.
  • the laser may be, for example, a 5,000 Hz or 8,000 Hz laser. Due to the use of thermoplastic material and the high energy of the laser smallest perforations are burned in the film of thermoplastic in the perforation, so that from this the later irrigation openings are formed.
  • the perforated material web is fed to a hose device which generates the finished irrigation hose from the material web.
  • the material web is first cylindrically shaped and then joined together at the longitudinal edges of the perforated material web, so that it is possible to form an irrigation hose with lasered irrigation openings.
  • This embodiment has the advantage that the material can be easily manufactured and provided inexpensively in the form of a material web.
  • the perforations for the irrigation openings by the laser can then be precisely produced in the flat material web.
  • the material web is cut before or after the perforation in step c) in a plurality of material web strips by means of a cutting device in the longitudinal direction, wherein from each web strip now an irrigation hose is formed. Accordingly, each material web strip is to be equated with the general term of the material web in step d).
  • the cut material web strips are now fed to the hose device, wherein the hose device is now formed so that it cylindrically forms each web strip and joins together at the respective longitudinal edges of the web strip, so that can be formed per web strip each an irrigation hose with lasered irrigation openings.
  • the hose device is now formed so that it cylindrically forms each web strip and joins together at the respective longitudinal edges of the web strip, so that can be formed per web strip each an irrigation hose with lasered irrigation openings.
  • the material web or the material web strips are joined together at the longitudinal edges by welding the longitudinal edges to form a hose.
  • a heating element for example a resistance wire, which heats the thermoplastic material and the longitudinal edges are fused together.
  • other welding and bonding techniques are also conceivable, with the technique of thermal welding on thermoplastics mentioned here probably representing the most effective.
  • the object is also achieved with a plant for the production of an irrigation hose for irrigation of agricultural land, set up for carrying out the above method, with a laser device with a laser and a laser control, designed to perforate the material of the irrigation hose to form irrigation openings on predefined Put .
  • a laser device with a laser and a laser control, designed to perforate the material of the irrigation hose to form irrigation openings on predefined Put .
  • FIG. 1 - schematic representation of the irrigation hose according to the invention
  • FIG. 1 schematically shows an irrigation hose 1 which has irrigation openings 2 at its circumference.
  • Such an irrigation hose for example, have an outer diameter of 1 6.5 mm.
  • the water supply opening 3 At the left end of the irrigation hose 1 is the water supply opening 3, with which the irrigation hose 1 can be supplied with irrigation water.
  • the flow direction of the irrigation water in the irrigation hose 1 is therefore marked with the arrow F.
  • the number of irrigation openings in the flow direction F per unit length increases, resulting in an increase in the mean water passage area of the irrigation openings per unit length in the direction of flow F. Due to the decrease of the water pressure in the flow direction F due to the water leakage from the irrigation ports 2 so the constant delivery of the amount of irrigation water is achieved.
  • a ⁇ réelleshof 4 is formed, which is curved relative to the peripheral surface 5 of the irrigation hose 1 to the outside. As a result, blockages of the small irrigation openings 2 can be avoided.
  • the material of the irrigation hose 1 may be a thermoplastic material, for example a polyolefin, belonging to the group of polyethylenes or polypropylenes.
  • a thermoplastic material for example a polyolefin, belonging to the group of polyethylenes or polypropylenes.
  • an irrigation hose off Polyethylene can be produced particularly quickly and cost-effectively.
  • the diameter of the irrigation openings is less than 50 ⁇ , preferably less than 30 ⁇ and is made by a laser.
  • FIG. 2 schematically shows a system 10 with which such an irrigation hose can be produced.
  • the system 1 0 has a web delivery device 10 for providing the material, with which the material web can be supplied to the respective devices of the system.
  • the material web 1 2 of the web delivery device 1 1 may for example be a film material made of polyethylene, which is wound on a roll.
  • the flat material web 12 is now guided through a material control 13 in order to be able to examine the material web or the film for defects. Thereafter, the web is passed through a buffer 14, which performs a corresponding tightening of the sheet web.
  • the material web 1 2 is guided flat over a work table 1 5.
  • the laser device 16 which has a laser and a laser control (not shown in detail). With the help of the laser of the laser device 16, a laser beam is now emitted in the direction of the guided on the work table 15 sheet material 1 2, so as to perforate the web to form the irrigation openings.
  • thermoplastic material Due to the thermoplastic material and the large heat energy of the laser, a small hole is burned into the material web at the point where it hits the material web, forming the later irrigation opening of the hose. A formed between the work table 1 5 and the web 12 air cushion is thereby heated in the region of the laser beam, resulting in the formation of a ⁇ réelleshofes in the perforation, the ⁇ réelleshof is curved upward. Because of the thermoplastic material is heated in the area of the opening court 4 and thus becomes deformable. Due to the expansion of the underlying air cushion in the area of the opening court due to the heating by the laser, the opening court bulges outwards.
  • the laser of the laser device 16 can continuously perform the corresponding perforations over the entire width of the material web.
  • the locations of the perforation can be selected such that after production of the irrigation hose the case arises that the mean water passage area of the irrigation openings per unit length increases in the direction of flow. This is achieved by the fact that at the beginning of the irrigation hose, the average number of irrigation holes is less than at the end of the hose. With the aid of the laser device 16, this can be achieved simply and effectively.
  • the thus perforated material web 1 2 is fed to a cutting device 1 7, which cuts the perforated material web in a plurality of material web strips in the longitudinal direction.
  • a cutting device 1 7 which cuts the perforated material web in a plurality of material web strips in the longitudinal direction.
  • the individual material web strips are now fed to a hose device 18, which initially brings each web of material strip into a cylindrical shape with the aid of a can 1 8a. Subsequently, the longitudinal edges of the respective web strip are joined together by means of a thermal welding process by the longitudinal edges of the web strips are heated by means of a heating element and then fused together.
  • each web strip irrigation hose with the lasered irrigation ports is then fed to a cooling system 1 9 to cool the welds and then pick up the irrigation hoses on a receiving device 20 and store.
  • a cooling system 1 9 to cool the welds and then pick up the irrigation hoses on a receiving device 20 and store.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental Sciences (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Tuyau d'irrigation destiné à irriguer des sols, constitué d'un matériau contenant un thermoplastique, les trous d'irrigation étant percés à l'aide d'un laser. La présente invention concerne également un procédé et une installation de fabrication d'un tuyau d'irrigation de ce type.
EP13753157.0A 2012-08-21 2013-08-20 Tuyau d'irrigation Withdrawn EP2887794A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012107655.3A DE102012107655B4 (de) 2012-08-21 2012-08-21 Bewässerungsschlauch
PCT/EP2013/067303 WO2014029766A2 (fr) 2012-08-21 2013-08-20 Tuyau d'irrigation

Publications (1)

Publication Number Publication Date
EP2887794A2 true EP2887794A2 (fr) 2015-07-01

Family

ID=49035571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13753157.0A Withdrawn EP2887794A2 (fr) 2012-08-21 2013-08-20 Tuyau d'irrigation

Country Status (5)

Country Link
US (1) US20150351333A1 (fr)
EP (1) EP2887794A2 (fr)
CN (1) CN104837333A (fr)
DE (1) DE102012107655B4 (fr)
WO (1) WO2014029766A2 (fr)

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US7648085B2 (en) 2006-02-22 2010-01-19 Rain Bird Corporation Drip emitter
US9877440B2 (en) 2012-03-26 2018-01-30 Rain Bird Corporation Elastomeric emitter and methods relating to same
US9485923B2 (en) 2012-03-26 2016-11-08 Rain Bird Corporation Elastomeric 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
US10440903B2 (en) 2012-03-26 2019-10-15 Rain Bird Corporation Drip line 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
DE202013012375U1 (de) 2013-09-09 2016-07-15 Günter Haese Vertikalbewässerungsanlage
US9883640B2 (en) 2013-10-22 2018-02-06 Rain Bird Corporation Methods and apparatus for transporting elastomeric emitters and/or manufacturing drip lines
US9420752B2 (en) * 2014-07-28 2016-08-23 Monty J. Teeter Mobile drip irrigation with precise and uniform water distribution
US10330559B2 (en) 2014-09-11 2019-06-25 Rain Bird Corporation Methods and apparatus for checking emitter bonds in an irrigation drip line
US10375904B2 (en) 2016-07-18 2019-08-13 Rain Bird Corporation Emitter locating system and related methods
US11051466B2 (en) 2017-01-27 2021-07-06 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
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
CA3152366A1 (fr) * 2019-08-29 2021-03-04 Biotherm Hydronic, Inc. Mat souple dote d'un conduit de fluide, son procede de fabrication et appareil pour sa fabrication
DE102020122858B4 (de) 2020-09-01 2022-04-28 Marco Strecker Vorrichtung zum Bewässern von Pflanzen
CN112756802A (zh) * 2020-12-24 2021-05-07 江苏腾奇电力设备科技有限公司 变压器用片式散热器的集油管的冲割孔工艺
US12207599B2 (en) 2021-10-12 2025-01-28 Rain Bird Corporation Emitter coupler and irrigation system

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Also Published As

Publication number Publication date
CN104837333A (zh) 2015-08-12
WO2014029766A2 (fr) 2014-02-27
WO2014029766A3 (fr) 2014-05-15
DE102012107655A1 (de) 2014-02-27
DE102012107655B4 (de) 2017-04-27
US20150351333A1 (en) 2015-12-10

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