EP3764783A1 - Dispositif agricole de pulvérisation - Google Patents

Dispositif agricole de pulvérisation

Info

Publication number
EP3764783A1
EP3764783A1 EP19711030.7A EP19711030A EP3764783A1 EP 3764783 A1 EP3764783 A1 EP 3764783A1 EP 19711030 A EP19711030 A EP 19711030A EP 3764783 A1 EP3764783 A1 EP 3764783A1
Authority
EP
European Patent Office
Prior art keywords
pressure
valves
spray device
liquid
agricultural spray
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Withdrawn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
EP19711030.7A
Other languages
German (de)
English (en)
Inventor
Olaf Ohlhafer
Steffen SIES
Dieter Amesoeder
Hans-Arndt Freudigmann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3764783A1 publication Critical patent/EP3764783A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0089—Regulating or controlling systems
    • A01M7/0092—Adding active material

Definitions

  • the invention relates to an agricultural spray device for applying a mixed spray liquid, with at least one spray nozzle for
  • the invention relates to a use of pressure valves
  • the spray mixture consisting of pesticides (combination of active ingredients and formulation materials), hereinafter referred to briefly as PSM, and a carrier liquid (TF) via nozzles in the form of a spray applied to the field.
  • PSM pesticides
  • TF carrier liquid
  • the spray mixture is premixed before the actual application in a central reservoir and conveyed by means of a conveyor to the individual spray nozzles.
  • the set pressure In addition to the spray characteristics, such as the drop size distribution, the set pressure also influences the volume flow flowing through a nozzle. So in the course of the injection process (also called application) a
  • Preset spray volume flow per surface can be applied by a nozzle at a constant, defined droplet spectrum, it is necessary to keep the pressure of the spray mixture as constant as possible or adjust it accordingly.
  • the still unpublished DE 10 2017 220 028 discloses a spraying device with conveying units for conveying liquid into a mixing valve for
  • each of the conveyor units in the agricultural spraying device is followed by a pressure valve with an adjustable opening pressure, wherein the opening pressures of the pressure valves by means of a
  • Control unit to the same value adjustable or controllable or
  • pressure valves in particular pressure relief valves in an agricultural spray device to provide a constant and in particular equal delivery pressure of liquids to be mixed, wherein the opening pressures of the pressure valves are adjustable by means of a control unit of the agricultural spray device to the same value.
  • the agricultural spray device may in particular be part of an agricultural field sprayer or a plant protection device or be designed as an agricultural field sprayer or a plant protection device.
  • the spraying device can be arranged and / or arranged on or on a mobile unit.
  • the mobile unit may be used as a land vehicle and / or Aircraft and / or trailer may be formed.
  • the mobile unit may in particular be an agricultural work machine, for example a
  • Tractor a tractor, a self-propelled or autonomous sprayer or a self-propelled or autonomous robot.
  • the spray device may also be attached to a hydraulic device of the agricultural
  • the spraying device is constructed on a loading surface of the agricultural machine.
  • the spray device may be attached to the agricultural machine.
  • the application of the spray liquid can take place on an agricultural area or an agricultural area.
  • This can be understood as a field or a cultivated area for plants or even a plot of such a cultivated area.
  • the agricultural area can thus be arable land, a grassland or a pasture.
  • the plants may include, for example, crops whose fruit is used for agriculture (for example as food, feed or as an energy crop) as well as weeds, weeds and grass weeds.
  • the plants can be part of the agricultural area.
  • the spray liquid preferably has at least one active agent liquid.
  • the spray liquid may also have two or more active agent liquids.
  • the active agent liquid may be a spraying agent, i. have a preparation or pesticide, in particular a pesticide concentrate.
  • the active agent liquid may, for example, comprise a herbicide, fungicide or an insecticide (pesticide).
  • the active agent liquid may also comprise a fertilizer, in particular a fertilizer concentrate.
  • the active agent liquid can therefore a liquid fertilizer and / or a
  • the spray liquid further preferably comprises a carrier liquid.
  • a carrier liquid can be understood as a liquid which is designed to mix with the active agent liquid in order to produce or deliver the active agent liquid, for example. permit or improve the pesticide or fertilizer.
  • the carrier liquid is preferably water.
  • the spray liquid can be formed, for example, as: liquid, suspension, emulsion, solution or a combination thereof.
  • Spray liquid is preferably designed as a plant protection agent diluted with water or fertilizer diluted with water.
  • the spray liquid can be a spray mixture.
  • the metering valves are part of the mixing unit. That is, in other words, that the mixing unit has the metering valves. Accordingly, the mixing unit can be designed as a mixing valve. In this case, the metering valves can be fluidically connected to the mixing lines by means of the feed lines to a mixing chamber of the mixing unit.
  • Each feed line is preceded by a feed unit. This is not intended to mean that each supply line must be preceded by its own delivery unit. Rather, this means that several feed lines and a common feed unit can be connected upstream. However, it is important that each delivery line, a delivery unit, whether jointly or solely, is connected upstream to the desired delivery pressure to the respective metering valve
  • the line may be formed as a fluidic connection line, for example.
  • the line may be formed as a fluidic connection line, for example.
  • the delivery unit is designed to convey or direct a liquid and / or a granulate under pressure, in particular to meter it. Accordingly, the delivery unit can, for example, in each case one / a / one or more pumps, Feed pumps, dosing pumps, accumulators, screw conveyors, valves, diaphragms etc. include.
  • the mixing unit is preferably arranged in the region of the spray nozzle.
  • the mixing unit can thus be arranged as a final mixing unit in front of the spray nozzle.
  • each spray nozzle is assigned a separate mixing unit. That is, in other words, that a mixing unit is arranged upstream of each spray nozzle.
  • the supply lines of the spray device can at least a first
  • the mixing chamber may have a static mixer or be designed as a static mixer. As a result, the mixing of the
  • Active agent liquids already prediluted in order to increase the total discharge.
  • the pressure valves are preferably designed as pressure relief valves.
  • each pressure valve is associated with a return line, by means of which the excess liquid in the corresponding tank is traceable.
  • the inventive agricultural spray device it is now possible to easily and inexpensively compensate for pressure fluctuations and pressure control or regulation with a constant and in particular the same delivery pressure on all supply lines almost independent of the set delivery pressure of the conveyor units perform on all supply lines of the spray nozzle unit.
  • This is achieved by the fact that pressure valves are arranged in the supply lines in the wake of the conveyor units, which are adjustable or controllable or regulated to a common value.
  • the constant delivery pressure or the constant delivery pressures are particularly important in systems of the type mentioned, since the required
  • the pressure valves are designed such that the opening pressure of the pressure valves is adjustable pressure-dependent.
  • the control unit has a control pressure source which can be fluidly connected or connected to the pressure valves by means of a control pressure line in order to set the opening pressures to the same value via a control pressure.
  • a control device for controlling and / or regulating the control pressure of the control pressure source can be provided.
  • the fluid in the control pressure line can be liquid or gaseous.
  • each inlet line in the mixing unit is associated with an actuatable valve. It is particularly advantageous if the control unit has a control device by means of which the valves are selectively actuated such that in a leading from the mixing unit to the spray nozzle drain line regardless of the operation of the valves or
  • Spray fluid results.
  • actuatable valves are each formed the same. This results in a high number of identical parts, which ensures easy installation and a cost-effective provision of the spray device. In addition, this ensures that due to the same design of the valves, the valves each have the same flow resistance and the same
  • 1 shows an agricultural spray device in one
  • Figure 2 is a schematic detail view of a
  • FIG. 1 shows, in a simplified representation, an agricultural one
  • Spray device 10 which is arranged on a trained as a tractor vehicle 12.
  • the spray device 10 has a plurality of spray nozzles 14, wherein the spray nozzles 14 are arranged distributed over a cross member 16 side by side.
  • the vehicle 12 pulls the cross member 16 and the spray nozzles 14 behind it, so that the spray nozzles 14 above a bottom 18, to apply a spray liquid 20 and a plant protection agent 20 on the ground 18 and any plants located thereon.
  • the vehicle 12 also carries a plurality of tanks 22, 24, 26 for this purpose and 28, wherein in the tanks 22, 24 and 26 each have a liquid Wirkmitel A, B or C, and in the tank 28 a carrier liquid TF, in particular in the form of water is kept in stock.
  • each tank 22-28 is assigned a delivery unit 32, 34, 36 and 38, by means of which the respective liquid A, B, C, TF can be removed and fed to the mixing unit 30.
  • the spray device 10 may also comprise more or fewer drug agent tanks than drug carriers 22, 24 and 26 are shown and described.
  • the injection device 10 also has a control device 40.
  • FIG. 2 shows in a simplified detailed view of the spray device 10, in which the four tanks 22-28, the associated conveyor units 32-38 and two of the spray nozzles 14 are shown.
  • the spraying nozzles 14 are preceded in each case by a mixing unit 30 which is connected in each case to the conveying units 32-38 by a feed line 42, 44, 46, 48.
  • a mixing unit 30 which is connected in each case to the conveying units 32-38 by a feed line 42, 44, 46, 48.
  • each of the delivery units 32-38 is followed by a respective pressure valve 50, 52, 54, 56.
  • the pressure valves 50-56 are in this case designed as pressure limiting valves 50-56 with an adjustable opening pressure.
  • the pressure relief valves 50-56 are pressure-controlled, ie, the opening pressure is adjustable depending on the pressure.
  • Each pressure valve 50-56 or pressure relief valve 50-56 is associated with a return line, by means of which the excess liquid A, B, C, TF in the corresponding tank 22, 24, 26, 28 is traceable.
  • a control unit 60 is provided, which is formed, the
  • the control unit 60 has a control pressure source 62 and a control pressure line 64, by means of which the control pressure source 62 fluidly connected to the pressure valves 50, 56 connected, so that the pressure valves 50-56 on the control pressure of the control unit 60 and the control pressure source 62nd can be adjusted or regulated to the same value or the same pressure level.
  • the control unit further comprises the control device for controlling and / or regulating the control pressure of the control pressure source 62.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Catching Or Destruction (AREA)

Abstract

L'invention concerne un dispositif agricole de pulvérisation (10) destiné à épandre un liquide mélangé de pulvérisation (20), pourvu d'au moins une buse de pulvérisation (14) destinée à pulvériser le liquide de pulvérisation (20) et d'au moins une unité de mélange (30) destinée à mélanger le liquide de pulvérisation (20), raccordée fluidiquement à la buse de pulvérisation (14), au moins deux conduites d'alimentation (42, 44, 46, 48) pour le dosage d'au moins deux liquides à mélanger (A, B, C, TF) différents provenant chacun d'un réservoir (22, 24, 26, 28) étant prévus dans l'unité de mélange (30), une unité de transport (32, 34, 36, 38) destinée à transporter le liquide (A, B, C, TF) respectif étant raccordée en amont de chacune des conduites d'alimentation (42, 44, 46, 48), une soupape de pression (50, 52, 54, 56) dont la pression d'ouverture est réglable étant raccordée en aval de chacune des unités de transport (32, 34, 36, 38), les pressions d'ouverture des soupapes de pression (50, 52, 54, 56) pouvant être réglées sur la même valeur au moyen d'une unité de commande (60) pour préparer une pression de transport constante des liquides à mélanger (A, B, C, TF).
EP19711030.7A 2018-03-13 2019-03-07 Dispositif agricole de pulvérisation Withdrawn EP3764783A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018203766.3A DE102018203766A1 (de) 2018-03-13 2018-03-13 Landwirtschaftliche Spritzvorrichtung
PCT/EP2019/055637 WO2019175001A1 (fr) 2018-03-13 2019-03-07 Dispositif agricole de pulvérisation

Publications (1)

Publication Number Publication Date
EP3764783A1 true EP3764783A1 (fr) 2021-01-20

Family

ID=65766990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19711030.7A Withdrawn EP3764783A1 (fr) 2018-03-13 2019-03-07 Dispositif agricole de pulvérisation

Country Status (4)

Country Link
EP (1) EP3764783A1 (fr)
BR (1) BR112020014986A2 (fr)
DE (1) DE102018203766A1 (fr)
WO (1) WO2019175001A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019128586A1 (de) * 2019-10-23 2021-04-29 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Landwirtschaftliches Bodenbearbeitungsgerät
CN111296390B (zh) * 2020-04-03 2021-11-19 安徽省华腾农业科技有限公司 一种帮助药液保持药性的农用喷药设备
DE102021203936A1 (de) * 2021-04-21 2022-10-27 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zum Ausbringen zweier unterschiedlicher Spritzmittel auf eine landwirtschaftliche Fläche
DE102021203938A1 (de) * 2021-04-21 2022-10-27 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zum Ausbringen zweier unterschiedlicher Spritzmittel auf eine landwirtschaftliche Fläche
FR3143269A1 (fr) * 2022-12-20 2024-06-21 Rene Proharam Dispositif, systeme et procede d’injection d’une solution agricole

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU198116B (en) * 1986-11-06 1989-08-28 Debreceni Mezoegazdasagi Spraying machine particularly for area-proportional spreading spray liquor
NO954484D0 (no) * 1995-11-08 1995-11-08 Norges Landbrukshoegskole Inst Spröyteutstyr for behovsdosering
FR2964047B1 (fr) * 2010-08-31 2015-05-22 Exel Ind Ensemble de pulverisation et pulverisateur equipe d'au moins un tel ensemble
DE102017220028A1 (de) 2017-11-10 2019-05-16 Robert Bosch Gmbh Spritzeinrichtung und Verfahren

Also Published As

Publication number Publication date
WO2019175001A1 (fr) 2019-09-19
DE102018203766A1 (de) 2019-09-19
BR112020014986A2 (pt) 2020-12-22

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