ES2354558A1 - System for supplying sprayers with liquid substances and liquid sprayer device incorporating same - Google Patents
System for supplying sprayers with liquid substances and liquid sprayer device incorporating same Download PDFInfo
- Publication number
- ES2354558A1 ES2354558A1 ES201130004A ES201130004A ES2354558A1 ES 2354558 A1 ES2354558 A1 ES 2354558A1 ES 201130004 A ES201130004 A ES 201130004A ES 201130004 A ES201130004 A ES 201130004A ES 2354558 A1 ES2354558 A1 ES 2354558A1
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- ES
- Spain
- Prior art keywords
- liquid
- pump
- circuit
- spray
- sprayed
- 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.)
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Classifications
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- 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
- A01M7/0025—Mechanical sprayers
- A01M7/0032—Pressure sprayers
- A01M7/0046—Hand-operated sprayers
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- 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
- A01M7/0003—Atomisers or mist blowers
- A01M7/0017—Portable atomisers, e.g. knapsack type
- A01M7/0021—Portable atomisers, e.g. knapsack type motor-driven
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
- B05B12/087—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/58—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter preventing deposits, drying-out or blockage by recirculating the fluid to be sprayed from upstream of the discharge opening back to the supplying means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
- B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
- B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
- B05B9/0855—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven
- B05B9/0861—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven the motor being electric
Abstract
Description
Sistema para la alimentación de pulverizadores con sustancias líquidas y aparato pulverizador de líquidos que lo incorpora.Sprayer feed system with liquid substances and liquid spray device that incorporates
La presente invención está destinada a dar a conocer un sistema y aparato para la alimentación de pulverizadores con sustancias líquidas, que aporta múltiples ventajas y características nuevas entre las que se encuentran la regulación de la presión de proyección y la posibilidad de intercambio de las boquillas de pulverización.The present invention is intended to give know a system and apparatus for feeding sprayers with liquid substances, which provides multiple advantages and new features among which are the regulation of the projection pressure and the possibility of exchanging the spray nozzles
El sistema objeto de la presente invención será aplicable en todos los casos en los que se deban pulverizar sustancias líquidas para diferentes aplicaciones deseando mantener la presión de alimentación de la boquilla de salida, indistintamente designada dispositivo pulverizador o de pulverización, para controlar el efecto de la pulverización.The system object of the present invention will be applicable in all cases where they must be sprayed liquid substances for different applications wishing to maintain the supply pressure of the outlet nozzle, interchangeably designated spray or spray device, for Control the effect of spraying.
La aplicación del sistema tendrá lugar preferentemente en los pulverizadores de productos fitosanitarios en agricultura, si bien podrá tener también aplicación en cualquier aparato o instalación industrial en los que se requiera la pulverización de sustancias con consistencia líquida con una presión estable y con la posibilidad de intercambiar las boquillas de pulverización.System application will take place preferably in the sprayers of phytosanitary products in agriculture, although it may also have application in any industrial apparatus or installation in which the spray of substances with liquid consistency with a pressure stable and with the possibility of exchanging the nozzles of spray.
En el contexto de la presente invención se debe considerar como sustancia líquida cualquier solución, emulsión o suspensión que tenga consistencia líquida, comportándose por lo tanto de acuerdo con las leyes habitualmente utilizadas en tísica con referencia a la circulación de líquidos por conducciones y salida de los mismos por aberturas controladas, en especial para conseguir efectos de pulverización del líquido.In the context of the present invention, consider as a liquid substance any solution, emulsion or suspension that has a liquid consistency, behaving so both in accordance with the laws commonly used in physics with reference to the circulation of liquids through pipes and their exit through controlled openings, especially for achieve liquid spray effects.
En la actualidad se conocen diferentes sistemas para la alimentación de boquillas de pulverización de líquidos que, con las llamadas bombas de demanda, corresponden en general a dos sistemas principales:Currently different systems are known for feeding liquid spray nozzles that, with the so-called demand pumps, they generally correspond to two main systems:
A) El sistema de alimentación está dotado de un
interruptor que controla la bomba, de manera que su funcionamiento
depende de que en el circuito de alimentación del pulverizador
exista una presión menor a la de tarado del interruptor, en cuyo
momento este último pone en funcionamiento la bomba hasta alcanzar
de nuevo la presión de tarado. Ello da lugar a una variación típica
de la presión en el conducto de alimentación de la boquilla de
pulverización en forma de diente de sierra, variando entre la
presión máxima para la que se desconecta el interruptor de control
de la bomba y una presión mínima en la que se vuelve a conectar para
poner nuevamente en marcha la
bomba.A) The feeding system is equipped with a switch that controls the pump, so that its operation depends on the pressure in the sprayer supply circuit being lower than the setting of the switch, at which time the latter starts working the pump until the set pressure is reached again. This results in a typical variation of the pressure in the feed line of the sawtooth-shaped spray nozzle, varying between the maximum pressure for which the pump control switch is disconnected and a minimum pressure in the which reconnects to restart the
bomb.
B) En este segundo sistema, la bomba está adaptada al circuito de salida de la boquilla de pulverización, que es fija. Es decir, existe un gasto fijo en la boquilla de salida, que no es recambiable, de manera que la bomba, una vez en funcionamiento, facilita el líquido a la presión prevista, que no varía durante el proceso, a la boquilla de pulverización.B) In this second system, the pump is adapted to the spray nozzle outlet circuit, which Is fixed. That is, there is a fixed expense in the outlet nozzle, which is not replaceable, so that the pump, once in operation, facilitates the liquid at the expected pressure, which does not varies during the process, to the spray nozzle.
Se aprecia, por lo tanto, que con los sistemas actualmente conocidos se tiene, en un caso, una variabilidad de la presión de alimentación de la boquilla de pulverización que no es deseable por condicionar dicha variación de presión las características de la pulverización, y en el segundo caso considerado, al no permitir el cambio de la boquilla de pulverización por otra con unas características de gasto diferentes, el sistema carece de la versatilidad que sería de desear en múltiples aplicaciones.It is appreciated, therefore, that with the systems currently known there is, in one case, a variability of the feed pressure of the spray nozzle which is not desirable for conditioning said pressure variation the spray characteristics, and in the second case considered, by not allowing the change of the nozzle of spraying on the other with different spending characteristics, the system lacks the versatility that would be desired in multiple applications
Teniendo en cuenta el estado de la técnica, los inventores han diseñado y experimentado el nuevo sistema objeto de la presente invención, que tiene como objetivo principal el facilitar líquido a pulverizar a la boquilla de pulverización a una presión constante, permitiendo simultáneamente el cambio de la boquilla de pulverización dentro de un determinado rango de características de paso de salida, es decir, con distintos gastos de líquido condicionados a una presión única de alimentación.Taking into account the state of the art, the inventors have designed and experienced the new system object of the present invention, which has as its main objective the provide liquid to be sprayed to the spray nozzle at a constant pressure, simultaneously allowing the change of spray nozzle within a certain range of exit pass characteristics, that is, with different expenses of liquid conditioned to a single supply pressure.
Otro objetivo de la presente invención consiste en permitir el funcionamiento autónomo de un aparato de pulverización dotado del presente sistema de manera, que pueda funcionar de forma transportable, sin necesidad de alimentación eléctrica externa.Another objective of the present invention is to in allowing the autonomous operation of an apparatus of spray provided with the present system so that it can operate transportably, without power external electrical
Otro objetivo de la presente invención consiste en conseguir que el sistema que es objeto de la misma permita la fabricación de aparatos de pulverización de líquidos dotados de baterías recargables que permitan el funcionamiento normal del aparato durante un turno completo de trabajo, evitando interrupciones en el trabajo o paros del aparato para cambiar o recargar las baterías.Another objective of the present invention is to in getting the system that is the object of it to allow manufacture of liquid spray devices equipped with rechargeable batteries that allow normal operation of the device during a full work shift, avoiding work interruptions or device stoppages to change or recharge the batteries.
Otro objetivo de la presente invención consiste en facilitar la construcción de pulverizadores de productos fitosanitarios de aplicación agrícola del tipo llamado de espalda o de mochila, es decir, en los que el operario lleva suspendido el aparato en su espalada y sólo debe controlar una válvula de alimentación de la tobera de pulverización que regula la salida de líquido.Another objective of the present invention is to in facilitating the construction of product sprayers Phytosanitary agricultural application of the type called back or backpack, that is, in which the operator has suspended the apparatus on your back and you should only control a valve supply of the spray nozzle that regulates the output of liquid.
Para conseguir sus objetivos, la presente invención da a conocer un sistema de alimentación de líquidos que se caracteriza por la combinación de tres circuitos para el líquido a pulverizar, que están interconectados entre sí y que funcionan simultáneamente:To achieve your goals, present invention discloses a liquid feeding system that is characterized by the combination of three circuits for the liquid to spray, which are interconnected with each other and that work simultaneously:
a) Un circuito principal que comprende un conducto de alimentación desde un depósito del líquido a pulverizar, una bomba, de impulsión del líquido y un conducto de recirculación hacía el mismo depósito del líquido a pulverizar.a) A main circuit comprising a feed line from a reservoir of the liquid to be sprayed, a pump, liquid delivery and a recirculation duct made the same deposit of the liquid to be sprayed.
b) Un segundo circuito que, conectado al circuito a), alimenta la boquilla de pulverización de líquido con intermedio de una válvula de control manual o de otro tipo.b) A second circuit that, connected to the circuit a), feeds the liquid spray nozzle with intermediate of a manual or other control valve.
c) Un tercer circuito conectado a los circuitos a) y b) que comprende una válvula de paso tarada a una presión determinada de pulverización, y un conducto de salida de la válvula que desemboca en el depósito del líquido a pulverizar.c) A third circuit connected to the circuits a) and b) comprising a valve tared at a pressure determined spray, and a valve outlet duct which flows into the reservoir of the liquid to be sprayed.
En el circuito a) la bomba de impulsión del líquido está destinada a funcionar de modo continuo mientras funciona el aparato en el que está montado el sistema objeto de la presente invención. Así, por ejemplo, en el caso de una aplicación agrícola, la bomba estará en funcionamiento durante todo el tiempo en el que el operario utiliza el aparato para efectuar la pulverización de líquido sobre las plantas a las que va destinado, con independencia de los períodos precisos en los que está teniendo lugar materialmente la salida de líquido por la boquilla de pulverización a causa del accionamiento de la válvula de paso hacia dicha boquilla.In circuit a) the drive pump of the liquid is intended to run continuously while the device on which the system subject to the present invention Thus, for example, in the case of an application agricultural, the pump will be running for the entire time in which the operator uses the device to perform the spray of liquid on the plants to which it is intended, regardless of the precise periods in which you are having materially place the liquid outlet through the nozzle of spray due to actuation of the flow valve said nozzle.
El circuito c) está destinado a limitar la presión máxima en el circuito principal a la salida de la bomba de alimentación y, por lo tanto, en el circuito b) de alimentación de la boquilla. La válvula de presión máxima puede ser ajustable o rija.Circuit c) is intended to limit the maximum pressure in the main circuit at the pump outlet of power and, therefore, in circuit b) of power supply the mouthpiece The maximum pressure valve can be adjustable or rija
La bomba podrá ser alimentada preferentemente, en el caso de aplicaciones agrícolas, mediante una batería recargable cuya capacidad se corresponda, con un cierto margen, a la necesaria para el funcionamiento continuado de la bomba durante un turno completo de trabajo. De este modo, se posibilitará que la batería pueda ser recargada después de cada turno de trabajo sin necesidad de interrupción alguna durante el funcionamiento previsto durante un turno.The pump can be fed preferably, in the case of agricultural applications, using a battery rechargeable whose capacity corresponds, with a certain margin, to the necessary for the continued operation of the pump during a full work shift. In this way, it will be possible for the battery can be recharged after each work shift without need for any interruption during the planned operation during a shift
Según la invención, la capacidad de la bomba estará adaptada para poder conseguir la presión constante de alimentación deseada en el circuito de alimentación de la boquilla de pulverización para, el caso de utilizar la boquilla de mayor diámetro. Es decir, la bomba tendrá suficiente capacidad para mantener dicha presión fija alimentando la boquilla de mayor diámetro dentro del rango previsto y asimismo el circuito de retorno constante al depósito del líquido a pulverizar. Para, boquillas de menor diámetro, podrá funcionar la válvula de descarga manteniendo la presión al valor constante deseado.According to the invention, the capacity of the pump will be adapted to achieve the constant pressure of desired feed in the nozzle feed circuit spray for, the case of using the nozzle of greater diameter. That is, the pump will have enough capacity to keep said pressure fixed by feeding the nozzle of greater diameter within the expected range and also the return circuit constant to the deposit of the liquid to be sprayed. For, nozzles smaller diameter, the discharge valve can be operated by maintaining the pressure at the desired constant value.
Por lo tanto, mediante la presente invención se consigue un sistema de alimentación de pulverizadores para sustancias líquidas que con medios sencillos permiten conseguir una presión constante de alimentación de la boquilla de pulverización y el cambio de dicha boquilla dentro de un rango determinado de valores.Therefore, by the present invention, get a spray feed system for liquid substances that with simple means allow to achieve a constant feed pressure of the spray nozzle and the change of said nozzle within a certain range of values.
En un ejemplo de realización, el caudal de salida de los pulverizadores, en el caso de una aplicación fitosanitaria, podrá variar aproximadamente entre 0,2 litros/minuto y 1,2 litros/minuto, siempre a 3 Bar, garantizando una pulverización satisfactoria en todos los casos.In an exemplary embodiment, the flow rate of output of the sprayers, in the case of an application Phytosanitary, may vary approximately between 0.2 liters / minute and 1.2 liters / minute, always at 3 Bar, guaranteeing a spray satisfactory in all cases.
Para el mismo caso del ejemplo, la batería recargable de 12 voltios puede tener una capacidad de 7,5 A/hora, lo cual puede representar una autonomía de funcionamiento de 5,5 horas de trabajo, lo que corresponde a una jornada laboral completa.For the same case in the example, the battery 12 volt rechargeable can have a capacity of 7.5 A / hour, which which can represent an operating autonomy of 5.5 hours of work, which corresponds to a full working day.
Con la aplicación de la presente invención, se consigue además que el consumo eléctrico sea mínimo, dado que el motor de la bomba funciona de modo constante, evitando las repetidas maniobras de nuevo arranque de la bomba en los sistemas actualmente conocidos que, teniendo en cuenta el elevado consumo en la fase de puesta en marcha del motor, representan un consumo mucho más elevado de la capacidad de la batería. Así, por ejemplo, en un caso de aplicación fitosanitaria con un aparato autónomo, el. consumo en el. momento del arranque puede ser de 1 a 6 amperios, mientras que en régimen continuo es del orden de 1,5 amperios.With the application of the present invention, it also achieves that the electricity consumption is minimal, given that the Pump motor runs steadily, avoiding repeated new pump start maneuvers in systems currently known that, taking into account the high consumption in the phase of engine start-up, represent a much higher consumption of battery capacity. Thus, for example, in a case of phytosanitary application with an autonomous device, the. consumption in the. Startup time can be 1 to 6 amps, while in Continuous regime is of the order of 1.5 amps.
Como se comprende, mediante la aplicación de la presente invención se consigue asimismo que el sistema pueda ser utilizado fácilmente en un pulverizador del tipo llamado de espalda, para usos agrícolas, en el que el operario lleva suspendido el aparato pulverizador en la espalda y debe graduar solamente de forma manual la válvula de control de la boquilla de pulverización, contribuyendo a ello la autonomía cíe trabajo para un turno completo y el reducido peso por la simplicidad mecánica del sistema y la reducida capacidad de la batería recargable.As understood, by applying the This invention also achieves that the system can be easily used in a sprayer of the type called back, for agricultural uses, in which the operator has suspended the spraying device on the back and should only graduate manual spray nozzle control valve, contributing to this the autonomy of work for a full shift and the reduced weight due to the mechanical simplicity of the system and the Reduced rechargeable battery capacity.
Para su mejor comprensión, se adjuntan a titulo de ejemplo unos dibujos explicativos de la presente invención.For your best understanding, they are attached to title example explanatory drawings of the present invention.
La figura 1 muestra una vista esquemática representativa de la variación de presión a lo largo del tiempo en un sistema de la técnica, anterior con presión variable.Figure 1 shows a schematic view representative of the pressure variation over time in a prior art system with variable pressure.
La figura 2 muestra una representación esquemática similar a la de la figura 1 para un sistema del estado de la técnica de alimentación a presión constante.Figure 2 shows a representation schematic similar to that in figure 1 for a state system of the constant pressure feeding technique.
La figura 3 muestra una representación esquemática del sistema objeto de la presente invención.Figure 3 shows a representation schematic of the system object of the present invention.
En la figura 1 se na representado en ordenadas la presión en el circuito de un sistema de presión variable, en el que la bomba está controlada por un interruptor tarado a una presión máxima determinada P_{1}, de modo tal que al llegar a dicha presión se interrumpe el funcionamiento de la bomba, reduciéndose la presión hasta llegar a otro valor inferior de tarado P_{2} para el cual la bomba se pone nuevamente en funcionamiento, dando lugar al gráfico en diente de sierra que se na representado.In figure 1 it is represented in ordinates the pressure in the circuit of a variable pressure system, in the that the pump is controlled by a switch set at a pressure determined maximum P_ {1}, so that upon reaching said pressure the pump operation is interrupted, reducing the pressure until it reaches another lower setting value P2 for which pump is put back into operation, giving rise to sawtooth graphic that has been represented.
En el caso representado en la figura 2, el sistema está tarado para una presión constante de salida P_{3}, de manera que una vez puesta en marcha la bomba, y teniendo en cuenta que la boquilla de salida tiene unas características constantes, se logra una presión de trabajo P_{3} que no varía durante el funcionamiento de la bomba.In the case represented in Figure 2, the system is set for a constant output pressure P3, of so that once the pump is started, and taking into account that the outlet nozzle has constant characteristics, it achieves a working pressure P_ {3} that does not change during the pump operation.
Tal como se ha indicado anteriormente, los inconvenientes consisten esencialmente, en el primer caso, en la variación de presión en las toberas de pulverización y en el segundo caso, en la imposibilidad de cambio de la boquilla de pulverización puesto que ello comportaría la variación de la presión de alimentación de la propia boquilla.As indicated above, the drawbacks consist essentially, in the first case, in the pressure variation in the spray nozzles and in the second case, in the impossibility of changing the spray nozzle since this would involve the variation of the pressure of feeding of the mouthpiece itself.
En el sistema objeto de la presente invención que se ha representado en la figura 3 se dispone como mínimo de un depósito principal (1) para el líquido a pulverizar desde el que se aspira líquido con la bomba (2) mediante el conducto (3). De la bomba sale el líquido por el conducto (4) realizándose una distribución de caudal por los tubos (5), (7) y (10) que son determinantes de los tres circuitos combinados que comporta el sistema. El caudal que fluye por el conducto (5) alimenta la boquilla de pulverización (6) con un caudal determinado que, de acuerdo con la boquilla utilizada, variará dentro de un rango determinado, por ejemplo, de 0,2 litros/minuto a 1,2 litros/minuto a una presión constante de 3 Bar. El caudal que fluye por el conducto (7) llega a un limitador de presión máxima (8) que puede presentar carácter regulable o fijo, y que una vez superada la presión de tarado del sistema, por ejemplo, 3 Bar, permitirá el paso libre del líquido para su retorno al depósito o depósitos (1) mediante el conducto (9). El caudal que fluye por el conducto (10) alimenta la boquilla de pulverización (12) que suministra un chorro de pulverización (13) con intermedio de una válvula de paso (11) que se puede controlar, manualmente en el caso de una aplicación fitosanitaria agrícola, regulando el paso hacia la boquilla (12).In the system object of the present invention which is represented in figure 3 there is at least one main tank (1) for the liquid to be sprayed from which aspirate liquid with the pump (2) through the duct (3). Of the pump exits the liquid through the duct (4) with a flow distribution through the tubes (5), (7) and (10) which are determinants of the three combined circuits that the system. The flow that flows through the duct (5) feeds the spray nozzle (6) with a given flow which, of According to the nozzle used, it will vary within a range determined, for example, from 0.2 liters / minute to 1.2 liters / minute at a constant pressure of 3 Bar. The flow that flows through the duct (7) reaches a maximum pressure limiter (8) that can present adjustable or fixed character, and that once the pressure of system setting, for example, 3 Bar, will allow free passage of the liquid for return to the deposit or deposits (1) by duct (9). The flow that flows through the conduit (10) feeds the spray nozzle (12) that supplies a jet of spraying (13) through an inlet valve (11) that is you can control, manually in the case of an application Agricultural phytosanitary, regulating the passage to the nozzle (12).
La bomba (2) está alimentada mediante una batería recargable, que puede estar incorporada en la propia bomba o separada en otro lugar del aparato en el que se incorpora el sistema, que tendrá una capacidad suficiente para atender el funcionamiento regular del aparato pulverizador durante un turno laboral completo. Es decir, en el caso de la aplicación agrícola, el operario no deberá interrumpir su labor para cambiar la batería o recargar ésta, sino que podrá esperar al final de la labor de su turno de trabajo para que la batería se pueda recargar nuevamente sin necesidad de su desmontaje.The pump (2) is powered by a rechargeable battery, which can be built into the pump itself or separated elsewhere from the apparatus in which the system, which will have sufficient capacity to meet the regular operation of the sprayer during a shift full work. That is, in the case of agricultural application, the Operator should not interrupt his work to change the battery or recharge this one, but you can wait at the end of the work of your work shift so the battery can be recharged again No need for disassembly.
Como es de ver, se establecen por lo tanto tres circuitos simultáneos que antes se han explicado:As you can see, there are therefore three simultaneous circuits that have been explained before:
a) el primer circuito o circuito principal integrado por los conductos (3), (4) y (5) que se inicia y termina en el depósito (1) y que comprende la bomba (2) que tiene capacidad para alimentar la boquilla (12) de diámetro máximo entre las varias boquillas posibles y el propio retorno por el conducto (5) al depósito (1), manteniendo una presión constante en el circuito que está interconectado con la boquilla de pulverización y con una válvula de sobrepresión;a) the first circuit or main circuit composed of ducts (3), (4) and (5) that starts and ends in the tank (1) and comprising the pump (2) that has capacity to feed the nozzle (12) of maximum diameter between the various possible nozzles and the return through the duct (5) to the tank (1), maintaining a constant pressure in the circuit that is interconnected with the spray nozzle and with a overpressure valve;
b) el circuito de alimentación de la boquilla de pulverización mediante el conducto (10), válvula intermedia (11) y la propia boquilla (12); yb) the feeding circuit of the nozzle spray through the duct (10), intermediate valve (11) and the mouthpiece itself (12); Y
c) el circuito integrado por el conducto (7), válvula de sobrepresión (8) y conducto (9) de retorno al depósito (1), que funcionará cuando la presión en el circuito principal supera la presión deseada de pulverización, que en el ejemplo indicado es de 3 Bar.c) the circuit integrated by the conduit (7), overpressure valve (8) and return duct (9) to the tank (1), which will work when the pressure in the main circuit exceeds the desired spray pressure, which in the example indicated is 3 Bar.
Como se comprenderá, si bien en el ejemplo explicado se ha hecho referencia preferentemente a un pulverizador autónomo de tipo agrícola, para proyectar productos fitosanitarios, el sistema será aplicable a otro tipo de aparatos o instalaciones industriales en los que se deban pulverizar líquidos a presión constante con variación de las toberas de pulverización.As will be understood, although in the example explained preferably reference has been made to a sprayer agricultural type autonomous, to project phytosanitary products, the system will be applicable to other types of devices or installations industrial in which pressurized liquids must be sprayed constant with variation of the spray nozzles.
Igualmente se debe comprender que, si bien el sistema para la alimentación de pulverizadores ha sido descrito con respecto a un ejemplo preferente, éste no se debe considerar limitativo y, por lo tanto, las variaciones que no salgan del ámbito de las siguientes reivindicaciones quedarán incluidas dentro del al cauce de la invención.It should also be understood that, although the spray feed system has been described with Regarding a preferred example, this should not be considered limiting and, therefore, variations that do not leave the scope of the following claims will be included within al channel of the invention.
Claims (9)
a:1. System for the feeding of sprayers with liquid substances, of the type comprising a pump for driving the liquid to be sprayed contained in a reservoir reservoir thereof, towards the liquid spray device, characterized by comprising a main recirculation circuit of liquid that starts and ends in the reservoir of the liquid to be sprayed, which contains the liquid pump and is connected
to:
- a)to)
- en paralelo a un segundo circuito que finaliza en el depósito de reserva del líquido a proyectar y que contiene una válvula reguladora de la presión máxima; yin parallel to a second circuit that ends in the tank of reserve of the liquid to be projected and which contains a valve maximum pressure regulator; Y
- b)b)
- a un circuito en serie conectado al dispositivo pulverizador del líquido, cuya circulación está controlada por una válvula intermedia.yet series circuit connected to the spray device of the liquid, whose circulation is controlled by a valve intermediate.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES201130004A ES2354558B1 (en) | 2011-01-04 | 2011-01-04 | SYSTEM FOR THE FEEDING OF SPRAYERS WITH LIQUID SUBSTANCES AND LIQUID SPRAYING DEVICE THAT INCLUDES IT. |
PCT/ES2011/070837 WO2012093188A1 (en) | 2011-01-04 | 2011-12-01 | System for supplying sprayers with liquid substances and liquid sprayer device incorporating same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES201130004A ES2354558B1 (en) | 2011-01-04 | 2011-01-04 | SYSTEM FOR THE FEEDING OF SPRAYERS WITH LIQUID SUBSTANCES AND LIQUID SPRAYING DEVICE THAT INCLUDES IT. |
Publications (2)
Publication Number | Publication Date |
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ES2354558A1 true ES2354558A1 (en) | 2011-03-16 |
ES2354558B1 ES2354558B1 (en) | 2011-08-11 |
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Application Number | Title | Priority Date | Filing Date |
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ES201130004A Active ES2354558B1 (en) | 2011-01-04 | 2011-01-04 | SYSTEM FOR THE FEEDING OF SPRAYERS WITH LIQUID SUBSTANCES AND LIQUID SPRAYING DEVICE THAT INCLUDES IT. |
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ES (1) | ES2354558B1 (en) |
WO (1) | WO2012093188A1 (en) |
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CN103975913B (en) * | 2014-05-19 | 2016-01-27 | 合肥师范学院 | A kind of boom sprayer line pressure controller |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1501610A (en) * | 1965-12-17 | 1967-11-10 | Agricultural sprayer | |
FR2039403A2 (en) * | 1965-12-17 | 1971-01-15 | Goffin Joseph | |
GB1247201A (en) * | 1967-07-29 | 1971-09-22 | Carl Platz G M B H | Apparatus for agricultural spraying or sprinkling |
GB1572816A (en) * | 1977-04-20 | 1980-08-06 | Fsl Bells Ltd | Liquid application device |
US4651903A (en) * | 1986-04-21 | 1987-03-24 | Pagliai Ferro D | Motorized pump pressurized liquid sprayer |
ES2191198T3 (en) * | 1997-10-02 | 2003-09-01 | Coop Goizper S | SPRAYER FOR AGRICULTURE AND / OR ELECTRONICALLY CONTROLLED GARDENING. |
US20100200668A1 (en) * | 2008-08-11 | 2010-08-12 | Klaus Hahn | Agricultural field sprayer and process for its operation |
-
2011
- 2011-01-04 ES ES201130004A patent/ES2354558B1/en active Active
- 2011-12-01 WO PCT/ES2011/070837 patent/WO2012093188A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1501610A (en) * | 1965-12-17 | 1967-11-10 | Agricultural sprayer | |
FR2039403A2 (en) * | 1965-12-17 | 1971-01-15 | Goffin Joseph | |
GB1247201A (en) * | 1967-07-29 | 1971-09-22 | Carl Platz G M B H | Apparatus for agricultural spraying or sprinkling |
GB1572816A (en) * | 1977-04-20 | 1980-08-06 | Fsl Bells Ltd | Liquid application device |
US4651903A (en) * | 1986-04-21 | 1987-03-24 | Pagliai Ferro D | Motorized pump pressurized liquid sprayer |
ES2191198T3 (en) * | 1997-10-02 | 2003-09-01 | Coop Goizper S | SPRAYER FOR AGRICULTURE AND / OR ELECTRONICALLY CONTROLLED GARDENING. |
US20100200668A1 (en) * | 2008-08-11 | 2010-08-12 | Klaus Hahn | Agricultural field sprayer and process for its operation |
Also Published As
Publication number | Publication date |
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ES2354558B1 (en) | 2011-08-11 |
WO2012093188A1 (en) | 2012-07-12 |
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