EP0155683B1 - Method and device for the preparation of liquids for fertilizer pouring of plants for household or hobby gardeners - Google Patents

Method and device for the preparation of liquids for fertilizer pouring of plants for household or hobby gardeners Download PDF

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Publication number
EP0155683B1
EP0155683B1 EP85103243A EP85103243A EP0155683B1 EP 0155683 B1 EP0155683 B1 EP 0155683B1 EP 85103243 A EP85103243 A EP 85103243A EP 85103243 A EP85103243 A EP 85103243A EP 0155683 B1 EP0155683 B1 EP 0155683B1
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Prior art keywords
water
pressure
gas
flow
supply
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EP85103243A
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German (de)
French (fr)
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EP0155683A3 (en
EP0155683A2 (en
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Alexander Kückens
Horst Köhl
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Technica Entwicklungs GmbH and Co KG
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Technica Entwicklungs GmbH and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers

Definitions

  • the invention relates to a method for preparing fertilizing water for household or hobby gardeners, in which the water is impregnated with CO 2 and dissolved in the impregnated water fertilizer.
  • FR-PS 11 171 059 shows a suitable injector system. This has a straight flow section through which one of the two media to be mixed flows. In this flow channel, several short pipe sections are arranged consecutively with increasing diameter, the ends of which are overlapped to form an annular gap. The pipe section of the largest diameter with respect to the straight channel is designed so that it also forms an annular gap with the channel. The flow in the channel is thus continuously divided into several partial flows.
  • a device for supplying the second of the two media to be mixed is provided centrally on the inlet side of the tube section of smallest diameter, through which this second medium is introduced into the flow in a finely divided manner.
  • This can e.g. B. done by spraying.
  • This is a system in which a mixture promoting turbulence is generated in a straight flow channel of constant cross-section with the aid of a flow control system from several differently dimensioned pipe sections, into which the second medium is injected or sprayed on the inlet side.
  • an arrangement for. B. is provided for a washing machine, in which the water feed line of this machine is associated with a metering device for adding an additive, for. B. automatically initiate a water softener.
  • the flow rate of the water is changed by the formation of a nozzle or a gradual change in the flow cross section.
  • a line for the additive opens into a mixing chamber area.
  • several bores are provided which are open to the outside atmosphere and through which small amounts of air can be drawn in.
  • Ventilation openings provided in front of the mixing zone have the purpose of preventing a vacuum from being formed in the water supply line when the water supply to the domestic machine is switched off. Because of this vacuum, the additive, e.g. B. the softener or the water mixed with it can be sucked back from the mixing chamber area into the water supply line and get into other line sections of the water distribution system. By contrast, the air sucked in through the bores ventilates the line section in front of the mixing chamber area, thus eliminating any vacuum that might occur there.
  • the invention relates to a method and an apparatus for preparing manure water for household or hobby gardener, in which the water is impregnated with C0 2 and dissolved in the impregnated water fertilizer. It is known that the health of plants, plant growth and their resistance to pest infestation can be significantly improved if the plants are watered with a corresponding proportion of CO 2 introduced by fine impregnation and a correspondingly high proportion of H 2 CO 3 contains. Appropriate systems and devices have been developed in order to supply horticultural businesses, outdoor crops and afforestation areas or the like with water prepared in this way. (See German magazine “Der Spiegel " , No. 47/1982, pages 99-101 and No. 7/1984, pages 61-63).
  • the invention takes into account the fact that the irrigation water in the household or at Hobby gardeners are usually removed from the water pipe via a tap. As is known, the water pressure in such lines is subject to considerable fluctuations. These fluctuations are automatically taken into account according to the teaching according to the invention in order to maintain a fixed degree of fine impregnation CO 2 gas, and in the preferred embodiment also with regard to the metering in of the fertilizer, without the operator having to do more than to ensure that more is sufficient There is a supply of gas or fertilizer. To get the impregnated fertilizer water when needed, the operator only needs to turn on the tap and turn off the tap when the need is satisfied.
  • the absorption and mixing in of the C0 2 gas is determined by the instantaneous lowering of the static water pressure in narrowly limited areas of the external liquid layers when overflowing the shoulder-like cross-sectional enlargements of the flow path in the impregnation zone and by the narrow and open holes corresponding to the shoulder width, which these external liquid layers bring into direct contact with the distribution zone for the CO 2 gas.
  • the device provided for carrying out the method can be designed to be extremely compact as a device block which can be easily attached to a conventional water pipe and whose outlet can be designed directly as a tapping point.
  • a liquid fertilizer is used, the feed into the water flow of which is controlled automatically and in each case in the correct ratio either by the gas pressure regulated by the water pressure and / or by the partial pressure and current generated by the water flow in the flow channel.
  • the irrigation water can also be enriched with CO 2 and H 2 C0 3 for certain purposes if required.
  • the water pressure in the supply line can vary widely, e.g. B. vary between 1 bar and 7 bar, without this having an influence on the mixing ratio and the mixing accuracy.
  • the device is extremely easy to install and operate.
  • a device block 1 is provided for the device according to the invention, which has a connection 2 for connection to a conventional water supply line.
  • a supply line connection point is usually equipped with a shut-off valve.
  • a control chamber 3 is provided, into which the water enters from the line.
  • the inlet pressure of the water can vary within wide limits depending on the respective supply line, e.g. B. between 1 bar and 7 bar. Likewise, the respective temperature of the water removed can be very different.
  • the respective pressure of the water in the control chamber 3 acts on a membrane 4 which, via an actuating plunger 8, acts directly on the movable member 7 of the outlet and reducing valve of a CO 2 pressure vessel 6, e.g. B. acts on a conventional compressed gas bottle.
  • the pressure vessel 6 equipped with this valve only needs to be screwed in a sealing manner to the standardized connection of the device block 1 provided for this purpose. Such a valve closes automatically if no control pressure is applied to the valve member 7 from the outside.
  • a gas distribution chamber 5 is provided in the device block 1, which is connected to a gas chamber 10 via a throttle point 11.
  • a flow channel 13 is also provided in the device block 1, the inlet side 14 of which is in free flow communication with the control chamber 3.
  • the flow channel 13 is preferably straight and elongated and opens at its lower end at an outlet 28, which can be the direct outlet for the casting liquid, for. B. for filling watering cans or other containers.
  • a conventional garden hose or the like can also be connected to the outlet 28.
  • the flow channel 13 has a plurality of channel sections, the diameter of which progressively and abruptly increases. These injector nozzle-like sections are designated by 15a to 15c.
  • the flow channel in each case has a plurality of connection openings 17 which are in free flow connection with distributor channels 12, which in turn are connected to the gas chamber 10 are.
  • a feed pipe 25 projects into the flow channel 13 from above centrally and at a radial distance from the wall of the flow channel, which feed pipe is connected to a fertilizer supply for liquid fertilizer via a check valve or metering valve 26 and opens into the area of one of the injector nozzles 15a to 16b.
  • the mouth 27 lies in the area of the injector nozzle 15c.
  • the tap of the supply line to which device block 1 is connected is opened.
  • the water entering the device block 1 when opened fills the control chamber 3 and acts on the membrane 4 with the respective pressure.
  • the membrane 4 serving as pressure control is designed and dimensioned such that the reducing valve 7 is already in the control chamber 3 at a pressure of 1 bar of the pressure vessel 6 opens and C0 2 can flow out into the chamber 5 with a correspondingly reduced pressure in the control chamber 3.
  • the throttle device 11 ensures that the outflowing CO z gas cannot reach into the flow channel 13 until the water from the control chamber 3 has entered the flow channel 13 and fills it with its flow. When the flow channel 13 flows through, an abrupt decrease in pressure in the water flow forms in the individual diameter gradations.
  • the inlet cross section for the fertilizer can be set by means of throttling by means of throttling.
  • the feed pressure of the liquid fertilizer can be set directly or indirectly by the respective pressure in the control chamber 3.
  • a simple adjustment of the volumetric feed of the fertilizer per unit of water is achieved by allowing the pressure in the gas chamber 10 or 12 controlled by the control chamber 3 to act on the head space of the fertilizer supply or on the exterior of a flexible container which holds the supply.
  • a pressure-dependent supply of the fertilizer as well as the beginning and the end of the fertilizer supply is achieved in direct dependence on the opening or closing of the tap of the supply line.
  • the water pressure itself can also advantageously be used directly for emptying the fertilizer container.
  • the negative pressure prevailing in one or the other of the injector stages 33 in the flow channel can also be used to suck the fertilizer from a reservoir 38 via the suction line 36 and the riser line 39, depending on the pressure, while simultaneously drawing in the gas via the gas chamber 32, 34.
  • a separate injector stage can also be provided between the injector groups 33 and 35, which serves exclusively to suck in the fertilizer. 2 can also be used in conjunction with the pressurization of the fertilizer supply by the C0 2 gas pressure in the gas chamber 32, 34.
  • a device block 30 is again provided which combines all the essential parts and connections of the device and thus enables particularly simple control.
  • a water-soluble solid fertilizer can also be used instead of a liquid fertilizer.
  • the device block is designed so that the water flow through the flow channel 13 according to FIG. 1 rinses the solid fertilizer and releases a quantity of fertilizer corresponding to the quantity of water.
  • the valve 7 is practically a simple shut-off valve, which is held in its blocking position by the internal pressure in the container 6.
  • the internal pressure is z. B. 60 bar and can fluctuate depending on the temperature.
  • the area ratio of the sealing area of valve 7 and membrane area is z. B. about 1:60.
  • the container is shut off. If the water pressure acts on the diaphragm, this translates the pressure effect that it transmits to the valve by 60 times.
  • the valve opens, gas (C0 2 ) flows into chamber 5, from which the outflow, as already described, is throttled.
  • the membrane 4 translates all fluctuations in the water pressure and thus controls the CO 2 discharge as a function of it of water pressure and its fluctuations.
  • gas bubbles of oversized size will still be present when it exits the impregnation system.
  • These gas bubbles must be filtered out in such a way that they are supplied to the gas impregnation room itself so that they are not transported to the delivery point. This would mean that larger bubbles would escape into the atmosphere and the economy of gas use would be impaired.
  • This process can be prevented by installing a helix, but better by installing a meandering system that runs vertically in the system, with the highest point opening into the gas space. At this point, one or more outlet openings can be made that allow the lighter gas to escape at this upper point so that it can be fed back into the gas space of the injector system while the filtered and finely impregnated water is conveyed into the discharge zone.

Abstract

1. Process for the preparation of watering water for household or hobby gardeners, in which the watering water is impregnated with CO2 and fertilizer is dissolved in the impregnated water, characterized in that the water is taken from a normal mains supply pipe at the pressure and the temperature of the pipe and is first conveyed into a control zone in which, by means of the present pressure of the water flowing in, a closing and pressure regulating valve of a CO2 pressure gas source is adjusted, and in that the water is conveyed from the control zone to the entrance end of an impregnation zone which is in the form of an elongated, straight, flow route and in which at least two shoulder-like cross-sectional widenings of the flow route, which widenings are at a distance from each other, the pressure of the water is abruptly lowered and the areas of the water-flow from lowered pressure to the drawing in of CO2 gas into the water stream are brought into contact with a distribution zone via thin, open bores corresponding to the width of the shoulder and being situated in the cross-sectional plane connecting to the annular shoulder, into which distribution zone is conveyed the CO2 gas with the gas pressure controlled by the water inlet pressure, and in that the water is brought into contact with the liquid or solid fertilizers directly after the contact areas with the CO2 distribution zone.

Description

Die Erfindung betrifft ein Verfahren zum Zubereiten von Düngegießwasser für Haushalt oder Hobbygärtner, bei dem man das Gießwasser mit CO2 imprägniert und in dem imprägnierten Wasser Düngestoff löst.The invention relates to a method for preparing fertilizing water for household or hobby gardeners, in which the water is impregnated with CO 2 and dissolved in the impregnated water fertilizer.

Aus der DE-PS 866 341 ist eine Anordnung zur Einbringung von CO2 in die Druckwasserzufuhrleitung einer Beregungsanlage bekannt. Das C02 wird dabei als Düngemittel zur Düngung von Kulturpflanzen ausgenützt. Um das C02 in das Wasser einzubringen, ist ein Injektor erwähnt, der jedoch nicht näher beschrieben ist. Ein dafür geeignetes Injektorsystem zeigt dagegen die FR-PS 11 171 059. Diese weist einen geraden Strömungsabschnitt auf, durch den das eine der beiden zu mischenden Medien strömt. In diesem Strömungskanal sind gleichachsig mehrere kurze Rohrabschnitte aufeinanderfolgend mit zunehmendem Durchmesser angeordnet, deren Enden jeweils unter Bildung eines Ringspaltes überlappt sind. Der Rohrabschnitt von größtem Durchmesser gegenüber dem geraden Kanal ist so ausgebildet, daß auch dieser mit dem Kanal noch einen Ringspalt bildet. Die Strömung in dem Kanal wird somit in mehrere Teilströmungen fortlaufend aufgeteilt. Auf der Eintrittsseite des Rohrabschnitts von kleinstem Durchmesser ist zentral eine Einrichtung zur Zuführung des zweiten der beiden zu mischenden Medien vorgesehen, durch welche dieses zweite Medium fein verteilt in die Strömung eingebracht wird. Dies kann z. B. durch Einsprühen erfolgen. Hierbei handelt es sich also um ein System, in dem in einem geraden Strömungskanal von gleichbleibendem Querschnitt mit Hilfe eines Strömungsleitsystems aus mehreren unterschiedlich bemessenen Rohrabschnitten eine die Mischung fördernde Turbulenz erzeugt wird, in die das zweite Medium eintrittsseitig eingespritzt oder eingesprüht wird.From DE-PS 866 341 an arrangement for introducing CO 2 into the pressurized water supply line of an irrigation system is known. The C0 2 is used as a fertilizer for fertilizing crops. In order to introduce the C0 2 into the water, an injector is mentioned, which is however not described in more detail. FR-PS 11 171 059, on the other hand, shows a suitable injector system. This has a straight flow section through which one of the two media to be mixed flows. In this flow channel, several short pipe sections are arranged consecutively with increasing diameter, the ends of which are overlapped to form an annular gap. The pipe section of the largest diameter with respect to the straight channel is designed so that it also forms an annular gap with the channel. The flow in the channel is thus continuously divided into several partial flows. A device for supplying the second of the two media to be mixed is provided centrally on the inlet side of the tube section of smallest diameter, through which this second medium is introduced into the flow in a finely divided manner. This can e.g. B. done by spraying. This is a system in which a mixture promoting turbulence is generated in a straight flow channel of constant cross-section with the aid of a flow control system from several differently dimensioned pipe sections, into which the second medium is injected or sprayed on the inlet side.

Ferner ist aus der US-PS 2 899 971 eine Anordnung z. B. für eine Waschmaschine vorgesehen, bei der der Wasserspeiseleitung dieser Maschine eine Dosiereinrichtung zugeordnet ist, um in das der Maschine zuströmende Wasser einen Zusatzstoff, z. B. ein Wasserenthärtungsmittel, automatisch einzuleiten. Zu diesem Zweck wird die Strömungsgeschwindigkeit des Wassers durch düsenförmige Ausbildung oder stufenweise Änderung des Strömungsquerschnitts verändert. Am Ende dieses Abschnitts, in dem die Geschwindigkeitsänderung stattfindet, mündet in einen Mischkammerbereich eine Leitung für das Zusatzmittel. Im Abstand vor diesem Mischkammerbereich sind mehrere zur Außenatmosphäre hin offene Bohrungen vorgesehen, durch die geringe Mengen an Luft angesaugt werden können. Diese vor der Mischzone vorgesehenen Belüftungsöffnungen haben den Zweck, zu verhindern, daß in der Zuführungsleitung für das Wasser ein Vakuum entsteht, wenn die Wasserzufuhr zu der Haushaltsmaschine abgeschaltet wird. Durch dieses Vakuum könnte nämlich der Zusatzstoff, z. B. das Enthärtungsmittel bzw. das damit vermischte Wasser aus dem Mischkammerbereich in die Wasserzuleitung zurückgesaugt werden und in andere Leitungsabschnitte des Wasserverteilungssystems gelangen. Durch die durch die Bohrungen angesaugte Luft wird dagegen der Leitungsabschnitt vor dem Mischkammerbereich belüftet und so ein dort eventuell auftretendes Vakuum beseitigt.Furthermore, from US-PS 2,899,971 an arrangement for. B. is provided for a washing machine, in which the water feed line of this machine is associated with a metering device for adding an additive, for. B. automatically initiate a water softener. For this purpose, the flow rate of the water is changed by the formation of a nozzle or a gradual change in the flow cross section. At the end of this section, in which the speed change takes place, a line for the additive opens into a mixing chamber area. At a distance from this mixing chamber area, several bores are provided which are open to the outside atmosphere and through which small amounts of air can be drawn in. These ventilation openings provided in front of the mixing zone have the purpose of preventing a vacuum from being formed in the water supply line when the water supply to the domestic machine is switched off. Because of this vacuum, the additive, e.g. B. the softener or the water mixed with it can be sucked back from the mixing chamber area into the water supply line and get into other line sections of the water distribution system. By contrast, the air sucked in through the bores ventilates the line section in front of the mixing chamber area, thus eliminating any vacuum that might occur there.

Ferner ist aus der US-PS 3 874 277 eine Vorrichtung zum Herstellen von Mineralwasser bekannt. Bei diesem System erfolgt die Einbringung von CO2 unter hohem Druck, was für die Zwecke nach der vorliegenden Erfindung zu erheblichen Nachteilen führt. Die bekannte Vorrichtung benötigt eine Ventileinrichtung, die außerordentlich kompliziert ist. Dabei ist die Anordnung so getroffen, daß die Druckgasquelle ständig offen ist und somit das Druckgas in bereits mehrfach reduzierter Form im Bereich des durch das Wasser betätigten Ventilanteils ansteht.Furthermore, an apparatus for producing mineral water is known from US Pat. No. 3,874,277. In this system, the introduction of CO 2 takes place under high pressure, which leads to considerable disadvantages for the purposes of the present invention. The known device requires a valve device that is extremely complicated. The arrangement is such that the pressurized gas source is always open and thus the pressurized gas is present in a reduced form in the area of the valve portion actuated by the water.

Demgegenüber bezieht sich die Erfindung auf ein Verfahren und eine Vorrichtung zum Zubereiten von Düngegießwasser für Haushalt oder Hobbygärtner, bei dem man das Gießwasser mit C02 imprägniert und in dem imprägnierten Wasser Düngestoff löst. Es ist bekannt, daß die Gesundheit von Pflanzen, der Pflanzenwuchs sowie ihre Widerstandskraft gegenüber Schädlingsbefall wesentlich verbessert werden können, wenn die Pflanzen mit Wasser gegossen werden, das einen entsprechenden Anteil von durch Feinimprägnierung eingebrachten CO2 und einen entsprechend, hohen Anteil an H2C03 enthält. Es sind entsprechende Anlage und Vorrichtungen entwickelt worden, um Gartenbaubetriebe, Freilandkulturen und Aufforstungsgebiete oder dgl. mit auf diese Weise präpariertem Wasser zu versorgen. (Vgl. Deutsche Zeitschrift « Der Spiegel ", Nr. 47/1982, Seiten 99-101 bzw. Nr. 7/1984, Seiten 61-63).In contrast, the invention relates to a method and an apparatus for preparing manure water for household or hobby gardener, in which the water is impregnated with C0 2 and dissolved in the impregnated water fertilizer. It is known that the health of plants, plant growth and their resistance to pest infestation can be significantly improved if the plants are watered with a corresponding proportion of CO 2 introduced by fine impregnation and a correspondingly high proportion of H 2 CO 3 contains. Appropriate systems and devices have been developed in order to supply horticultural businesses, outdoor crops and afforestation areas or the like with water prepared in this way. (See German magazine "Der Spiegel " , No. 47/1982, pages 99-101 and No. 7/1984, pages 61-63).

Es ist nun Aufgabe der Erfindung, ein Verfahren und eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 1 bzw. des Anspruchs 2 so weiterzubilden, daß der Hausfrau bzw. dem Hobbygärtner auf einfache und preiswerte Weise ermöglicht wird, aus der normalen Versorgungsleitung entnommenes Gießwasser bei Bedarf in jeder gewünschten Menge in einer optimalen Weise sowohl mit Düngestoffen, als auch mit C02 und H2C03 anzureichern und zu mischen.It is an object of the invention to develop a method and a device according to the preamble of claim 1 and claim 2, respectively, so that the housewife or the hobby gardener is enabled in a simple and inexpensive manner to pour water from the normal supply line if necessary into Enrich and mix any desired amount in an optimal way with fertilizers as well as with C0 2 and H 2 C0 3 .

Diese Aufgabe wird verfahrensgemäß durch die Lehre des Anspruchs 1 und zur Ausführung des Verfahrens durch die Lehre des Vorrichtungsanspruchs 2 gelöst.This object is achieved according to the method by the teaching of claim 1 and to carry out the method by the teaching of device claim 2.

Der Teil dieser Lehre, der sich jeweils auf die Art und Weise bzw. auf die Mittel zum Feinstimprägnieren des Wassers mit C02 Gas bezieht, ist für sich Gegenstand der EP-A-0 142 595 der gleichen Anmelderin.The part of this teaching, which relates in each case to the manner or to the means for fine impregnation of the water with CO 2 gas, is in itself the subject of EP-A-0 142 595 by the same applicant.

Die Erfindung nimmt Rücksicht auf die Tatsache, daß das Gießwasser im Haushalt oder bei Hobbygärtnern in aller Regel aus der Wasserleitung über einen Hahn entnommen wird. Bekanntlich unterliegt der Wasserdruck in solchen Leitungen erheblichen Schwankungen. Diese Schwankungen werden gemäß der Lehre nach der Erfindung zur Aufrechterhaltung eines fest eingestellten Grades der Feinstimprägnierung CO2 Gas, und in der bevorzugten Ausführungsform auch bezüglich der Zudosierung des Düngemittels automatisch berücksichtigt, ohne daß die Bedienungsperson mehr tun muß, als dafür zu sorgen, daß genügender Vorrat an Gas bzw. Düngemittel vorhanden ist. Um bei Bedarf das imprägnierte Düngewasser zu erhalten, braucht die Bedienungsperson lediglich den Wasserhahnaufzudrehen und bei Befriedigung des Bedarfs den Hahn wieder abzudrehen.The invention takes into account the fact that the irrigation water in the household or at Hobby gardeners are usually removed from the water pipe via a tap. As is known, the water pressure in such lines is subject to considerable fluctuations. These fluctuations are automatically taken into account according to the teaching according to the invention in order to maintain a fixed degree of fine impregnation CO 2 gas, and in the preferred embodiment also with regard to the metering in of the fertilizer, without the operator having to do more than to ensure that more is sufficient There is a supply of gas or fertilizer. To get the impregnated fertilizer water when needed, the operator only needs to turn on the tap and turn off the tap when the need is satisfied.

Da bei der verwendeten Art der Imprägnierung des Wassers mit CO2 Gas und bei den verwendeten Mitteln das Gas in dem Wasser außerordentlich stabil gelöst ist, werden trotz der sehr einfachen Ausbildung und Handhabung der Vorrichtung stets zuverlässig reproduzierbare Verhältnisse bezüglich CO2 Gehalt und Düngemittelgehalt gewährleistet. Einflüsse durch schwankenden Druck auf die Dosiergenauigkeit werden aufgrund der Ausbildung zuverlässig ausgeschaltet. Die Aufnahme und Einmischung des C02 Gases wird durch die momentane Absenkung des statischen Wasserdrucks in eng begrenzten Bereichen der außen liegenden Flüssigkeitsschichten beim Überströmen der schulterartigen Querschnittserweiterungen des Strömungsweges in der Imprägnierungszone und durch der Schulterbreite entsprechende schmale und offene Bohrungen bestimmt, welche diese außen liegenden Flüssigkeitsschichten in direkten Kontakt mit der Verteilerzone für das CO2 Gas bringen.Since the type of impregnation of the water with CO 2 gas and the means used in the gas are extremely stable in the water, reliable reproducible conditions with regard to the CO 2 content and fertilizer content are always guaranteed despite the very simple design and handling of the device. Influences due to fluctuating pressure on the dosing accuracy are reliably eliminated due to the training. The absorption and mixing in of the C0 2 gas is determined by the instantaneous lowering of the static water pressure in narrowly limited areas of the external liquid layers when overflowing the shoulder-like cross-sectional enlargements of the flow path in the impregnation zone and by the narrow and open holes corresponding to the shoulder width, which these external liquid layers bring into direct contact with the distribution zone for the CO 2 gas.

Die zur Ausführung des Verfahrens vorgesehene Vorrichtung läßt sich außerordentlich kompakt als Geräteblock ausbilden, der leicht an eine übliche Wasserleitung anbringbar ist und dessen Auslaß direkt als Entnahmestelle ausgebildet sein kann.The device provided for carrying out the method can be designed to be extremely compact as a device block which can be easily attached to a conventional water pipe and whose outlet can be designed directly as a tapping point.

In der bevorzugten Ausführungsform wird ein Flüssigkeitsdünger verwendet, dessen Zuspeisung in die Wasserströmung entweder über den vom Wasserdruck geregelten Gasdruck und/oder durch den durch die Wasserströmung im Strömungskanal partiell und momentan erzeugten Unterdruck automatisch und jeweils im zutreffenden Verhältnis gesteuert wird.In the preferred embodiment, a liquid fertilizer is used, the feed into the water flow of which is controlled automatically and in each case in the correct ratio either by the gas pressure regulated by the water pressure and / or by the partial pressure and current generated by the water flow in the flow channel.

Die Installation, ebenso wie der Gebrauch der Vorrichtung sind außerordentlich einfach. Die Einmischung des C02 Gases, wie auch des Düngemittels lassen sich auf die gewünschten Verhältnisse leicht einstellen, so daß Hausfrau oder Hobbygärtner keine besondere Aufmerksamkeit bei der Benutzung der Vorrichtung aufwenden müssen. Durch Absperren der Zuleitung für das Düngemittel kann auch bedarfsweise das Gießwasser für bestimmte Zwecke ausschließlich mit CO2 und H2C03 angereichert sein.Installation and use of the device are extremely simple. The mixing of the C0 2 gas, as well as the fertilizer can be easily adjusted to the desired conditions, so that housewives or hobby gardeners do not have to pay special attention when using the device. By shutting off the feed line for the fertilizer, the irrigation water can also be enriched with CO 2 and H 2 C0 3 for certain purposes if required.

Der Wasserdruck in der Versorgungsleitung kann in weitem Maße, z. B. zwischen 1 bar und 7 bar variieren, ohne daß dies auf das Mischungsverhältnis und die Mischungsgenauigkeit Einfluß hat.The water pressure in the supply line can vary widely, e.g. B. vary between 1 bar and 7 bar, without this having an influence on the mixing ratio and the mixing accuracy.

Die Vorrichtung ist außerordentlich bequem zu installieren und zu bedienen.The device is extremely easy to install and operate.

Die Erfindung wird anschließend anhand schematischer Zeichnungen an zwei Ausführungsbeispielen näher erläutert.The invention is then explained in more detail with reference to schematic drawings of two exemplary embodiments.

Es Zeigen :

  • Fig. 1 im senkrechten Schnitt eine Vorrichtung gemäß der Erfindung in einer ersten Ausführungsform und
  • Fig. 2 in ähnlicher Darstellung, jedoch nur im Ausschnitt, eine abgewandelte Ausführungsform.
Show it :
  • Fig. 1 in vertical section a device according to the invention in a first embodiment and
  • Fig. 2 in a similar representation, but only in the detail, a modified embodiment.

Bei der Ausführungsform nach Fig. 1 ist für die Vorrichtung gemäß der Erfindung ein Geräteblock 1 vorgesehen, der einen Anschluß 2 zum Anschließen an eine übliche Wasserversorgungsleitung aufweist. Eine solche Versorgungsleitungsanschlußstelle ist üblicherweise mit einem Abschlußhahn ausgerüstet. In dem Geräteblock 1 ist eine Steuerkammer 3 vorgesehen, in die das Wasser aus der Leitung eintritt. Der Eintrittsdruck des Wassers kann in Abhängigkeit von der jeweiligen Versorgungsleitung in weiten Grenzen variieren, z. B. zwischen 1 bar und 7 bar. Ebenso kann auch die jeweilige Temperatur des entnommenen Wassers sehr unterschiedlich sein.In the embodiment according to FIG. 1, a device block 1 is provided for the device according to the invention, which has a connection 2 for connection to a conventional water supply line. Such a supply line connection point is usually equipped with a shut-off valve. In the device block 1, a control chamber 3 is provided, into which the water enters from the line. The inlet pressure of the water can vary within wide limits depending on the respective supply line, e.g. B. between 1 bar and 7 bar. Likewise, the respective temperature of the water removed can be very different.

Der jeweilige Druck des Wassers in der Steuerkammer 3 wirkt auf eine Membran 4 ein, die über einen Betätigungsstößel 8 unmittelbar auf das bewegliche Glied 7 des Austritts- und Reduzierventils eines CO2-Druckbehälters 6, z. B. eine übliche Druckgasflasche einwirkt. Der mit diesem Ventil ausgerüstete Druckbehälter 6 braucht lediglich an den dafür vorgesehenen genormten Anschluß des Geräteblockes 1 abdichtend angeschraubt zu werden. Ein solches Ventil schließt automatisch, wenn von außen kein Steuerdruck auf das Ventilglied 7 aufgebracht wird.The respective pressure of the water in the control chamber 3 acts on a membrane 4 which, via an actuating plunger 8, acts directly on the movable member 7 of the outlet and reducing valve of a CO 2 pressure vessel 6, e.g. B. acts on a conventional compressed gas bottle. The pressure vessel 6 equipped with this valve only needs to be screwed in a sealing manner to the standardized connection of the device block 1 provided for this purpose. Such a valve closes automatically if no control pressure is applied to the valve member 7 from the outside.

Unterhalb der Membran 4 ist in dem Geräteblock 1 eine Gasverteilerkammer 5 vorgesehen, die über eine Drosselstelle 11 mit einer Gaskammer 10 in Verbindung steht.Below the membrane 4, a gas distribution chamber 5 is provided in the device block 1, which is connected to a gas chamber 10 via a throttle point 11.

In dem Geräteblock 1 ist ferner ein Strömungskanal 13 vorgesehen, dessen Eintrittsseite 14 mit der Steuerkammer 3 in freier Strömungsverbindung steht. Der Strömungskanal 13 ist bevorzugt geradlinig und langgestreckt ausgebildet und mündet an seinem unteren Ende an einem Auslaß 28, Dieser kann der direkte Austritt für die Gießflüssigkeit sein, z. B. zum Füllen von Gießkannen oder anderen Behältern. An den Auslaß 28 kann aber auch ein üblicher Gartenschlauch oder dgl. angeschlossen werden.A flow channel 13 is also provided in the device block 1, the inlet side 14 of which is in free flow communication with the control chamber 3. The flow channel 13 is preferably straight and elongated and opens at its lower end at an outlet 28, which can be the direct outlet for the casting liquid, for. B. for filling watering cans or other containers. A conventional garden hose or the like can also be connected to the outlet 28.

In einem ersten Abschnitt weist der Strömungskanal 13 mehrere Kanalabschnitte auf, deren Durchmesser sich fortschreitend und abrupt vergrößert. Diese injektordüsenartigen Abschnitte sind mit 15a bis 15c bezeichnet. In der der schulterartigen Erweiterung folgenden Ebene weist der Strömungskanal jeweils mehrere Verbindungsöffnungen 17 auf, die in freier Strömungsverbindung mit Verteilerkanälen 12 stehen, die ihrerseits mit der Gaskammer 10 verbunden sind.In a first section, the flow channel 13 has a plurality of channel sections, the diameter of which progressively and abruptly increases. These injector nozzle-like sections are designated by 15a to 15c. In the level following the shoulder-like enlargement, the flow channel in each case has a plurality of connection openings 17 which are in free flow connection with distributor channels 12, which in turn are connected to the gas chamber 10 are.

In einem weiteren, vor dem Auslaß 28 liegenden Bereich des Strömungskanals 13, sind weitere solche Abschnitte 16a, 16b mit abrupten Durchmessererweiterungen vorgesehen. Auch hier sind in der der Erweiterungsschulter unmittelbar folgenden Ebene Bohrungen 18 vorgesehen, die mit Verteiler- oder Verbindungskanälen 19 in freier Strömungsverbindung stehen. Diese Verbindungskanäle 19 sind an ihrem unteren Ende mit einem Bereich des Strömungskanals 13 im Abstand hinter der letzten Injektordüse 16b über Bohrungen 20 verbunden.In a further region of the flow channel 13 located in front of the outlet 28, further such sections 16a, 16b with abrupt diameter expansions are provided. Here, too, bores 18 are provided in the level immediately following the extension shoulder, which are in free flow connection with distributor or connecting channels 19. These connecting channels 19 are connected at their lower end to a region of the flow channel 13 at a distance behind the last injector nozzle 16b via bores 20.

In den Strömungskanal 13 ragt von oben zentral und mit radialem Abstand von der Wandung des Strömungskanals ein Zuführungsrohr 25, das über ein Sperrventil oder Dosierventil 26 mit einem Düngemittelvorrat für flüssigen Dünger in Verbindung steht und im Bereich einer der Injektordüsen 15a bis 16b mündet. Im dargestellten Beispiel liegt die Mündung 27 im Bereich der Injaktordüse 15c.A feed pipe 25 projects into the flow channel 13 from above centrally and at a radial distance from the wall of the flow channel, which feed pipe is connected to a fertilizer supply for liquid fertilizer via a check valve or metering valve 26 and opens into the area of one of the injector nozzles 15a to 16b. In the example shown, the mouth 27 lies in the area of the injector nozzle 15c.

Das beschriebene Gerät arbeitet wie folgt :The device described works as follows:

Bei Gießwasserbedarf wird der Hahn der Versorgungsleitung geöffnet, an die der Geräteblock 1 angeschlossen ist. Das beim Öffnen in den Geräteblock 1 eintretende Wasser füllt die Steuerkammer 3 und beaufschlagt mit dem jeweiligen Druck die Membran 4. Die als Drucksteuerung dienende Membran 4 ist so ausgebildet und bemessen, daß schon bei einem Druck von 1 bar in der Steuerkammer 3 das Reduzierventil 7 des Druckbehälters 6 öffnet und C02 mit einem den Druck in der Steuerkammer 3 entsprechend reduzierten Druck in die Kammer 5 ausströmen läßt. Die Drosseleinrichtung 11 sorgt dafür, daß das ausströmende COz-Gas in den Strömungskanal 13 erst durchgreifen kann, wenn das Wasser aus der Steuerkammer 3 in den Strömungskanal 13 eingetreten ist und diesen mit seiner Strömung füllt. Bei der Durchströmung des Strömungskanals 13 bildet sich in den einzelnen Durchmesserabstufungen eine abrupte Druckherabsetzung in der Wasserströmung. Durch den herabgesetzten Druck wird Gas aus der Gaskammer 10, 12 angesaugt und in effektiver Weise in feinstverteilter Form und unter Vermeidung weitgehend größerer Blasen in das Wasser eingemischt. Diese Feinstimprägnierung wiederholt sich in jeder Injektordüse 15a bis 15c. Nach der Feinstimprägnierung des Wassers wird in dem Strömungskanal 13 dem Wasser das Düngemittel zugesetzt und mit dem Wasser innig vermischt. Die Feinstimprägnierung und die innige Vermischung wird durch die nachgeschalteten Injektorstufen 16a und 16b noch wesentlich gefördert, da in diesen Bereichen eine Rückmischung der durch die Bohrungen 20 in die Verbindungskanäle 19 eintretenden Mischflüssigkeit mit der aus der Injektordüse 15c neu zuströmenden gemischten Flüssigkeit erfolgt. Durch das Ventil 26 kann mittels Drosselung der Eintrittsquerschnitt für das Düngemittel eingestellt werden. Der Zuführungsdruck des flüssigen Düngemittels kann dabei durch den jeweiligen Druck in der Steuerkammer 3 direkt oder indirekt eingestellt werden. Eine einfache Einstellung der volumetrischen Zufuhr des Düngemittels pro Wassermengeneinheit wird dadurch erreicht, daß man den durch die Steuerkammer 3 gesteuerten Druck in der Gaskammer 10 oder 12 auf den Kopfraum des Düngemittelvorrats oder auf das Äußere eines den Vorrat aufnehmenden flexiblen Behälters einwirken läßt. Dadurch wird eine druckabhängige Zufuhr des Düngemittels ebenso wie der Beginn und das Ende der Düngemittelzufuhr in direkter Abhängigkeit vom Aufdrehen bzw. Schließen des Hahns der Versorgungsleitung erreicht. Es kann aber auch der Wasserdruck selbst direkt zum Entleeren des Düngemittelbehälters vorteilhaft eingesetzt werden.If irrigation water is required, the tap of the supply line to which device block 1 is connected is opened. The water entering the device block 1 when opened fills the control chamber 3 and acts on the membrane 4 with the respective pressure. The membrane 4 serving as pressure control is designed and dimensioned such that the reducing valve 7 is already in the control chamber 3 at a pressure of 1 bar of the pressure vessel 6 opens and C0 2 can flow out into the chamber 5 with a correspondingly reduced pressure in the control chamber 3. The throttle device 11 ensures that the outflowing CO z gas cannot reach into the flow channel 13 until the water from the control chamber 3 has entered the flow channel 13 and fills it with its flow. When the flow channel 13 flows through, an abrupt decrease in pressure in the water flow forms in the individual diameter gradations. Due to the reduced pressure, gas is sucked out of the gas chamber 10, 12 and is effectively mixed into the water in a finely divided form and avoiding largely larger bubbles. This fine impregnation is repeated in each injector nozzle 15a to 15c. After the fine impregnation of the water, the fertilizer is added to the water in the flow channel 13 and intimately mixed with the water. The fine impregnation and intimate mixing is still significantly promoted by the downstream injector stages 16a and 16b, since in these areas the mixed liquid entering through the bores 20 into the connecting channels 19 is mixed back with the mixed liquid newly flowing in from the injector nozzle 15c. The inlet cross section for the fertilizer can be set by means of throttling by means of throttling. The feed pressure of the liquid fertilizer can be set directly or indirectly by the respective pressure in the control chamber 3. A simple adjustment of the volumetric feed of the fertilizer per unit of water is achieved by allowing the pressure in the gas chamber 10 or 12 controlled by the control chamber 3 to act on the head space of the fertilizer supply or on the exterior of a flexible container which holds the supply. As a result, a pressure-dependent supply of the fertilizer as well as the beginning and the end of the fertilizer supply is achieved in direct dependence on the opening or closing of the tap of the supply line. However, the water pressure itself can also advantageously be used directly for emptying the fertilizer container.

Wie Figur 2 zeigt, kann aber auch der in der einen oder der anderen der Injektorstufen 33 herrschende Unterdruck im Strömungskanal dazu ausgenutzt werden, um druckabhängig das Düngemittel aus einem Vorratsbehälter 38 über die Saugleitung 36 und die Steigleitung 39 anzusaugen, während gleichzeitig die Ansaugung des Gases über die Gaskammer 32, 34 erfolgt.As shown in FIG. 2, the negative pressure prevailing in one or the other of the injector stages 33 in the flow channel can also be used to suck the fertilizer from a reservoir 38 via the suction line 36 and the riser line 39, depending on the pressure, while simultaneously drawing in the gas via the gas chamber 32, 34.

Statt das Düngemittel aus einer für die Gaseinmischung dienenden Injektordüsen 33 ansaugen zu lassen, kann zwischen den Injektorgruppen 33 und 35 auch eine gesonderte Injektorstufe vorgesehen sein, die ausschließlich zur Ansaugung des Düngemittels dient. Die Ansaugung nach Fig. 2 kann auch in Verbindung mit der Druckbeaufschlagung des Düngemittelvorrates durch den C02-Gasdruck in der Gaskammer 32, 34 eingesetzt werden.Instead of having the fertilizer sucked in from an injector nozzle 33 used for gas mixing, a separate injector stage can also be provided between the injector groups 33 and 35, which serves exclusively to suck in the fertilizer. 2 can also be used in conjunction with the pressurization of the fertilizer supply by the C0 2 gas pressure in the gas chamber 32, 34.

Bei der" Ausführungsform nach Fig. 2 ist wiederum ein Geräteblock 30 vorgesehen, der alle wesentlichen Teile und Anschlüsse der Vorrichtung zusammenfaßt und damit eine besonders einfache Steuerung ermöglicht.In the "embodiment according to FIG. 2, a device block 30 is again provided which combines all the essential parts and connections of the device and thus enables particularly simple control.

In Abwandlung des neuen Verfahrens kann statt eines Flüssigdüngers auch ein in Wasser löslicher Feststoffdünger verwendet werden. In diesem Fall wird der Geräteblock so ausgebildet, daß die Wasserströmung durch den Strömungskanal 13 nach Fig. 1 jeweils den Feststoffdünger bespült und eine der Wassermenge entsprechende Menge an Düngemittel löst.In a modification of the new method, a water-soluble solid fertilizer can also be used instead of a liquid fertilizer. In this case, the device block is designed so that the water flow through the flow channel 13 according to FIG. 1 rinses the solid fertilizer and releases a quantity of fertilizer corresponding to the quantity of water.

Das Ventil 7 ist praktisch ein einfaches AbsperrVentil, das durch den Innendruck im Behälter 6 in seiner Sperrstellung gehalten ist. Der Innendruck beträgt z. B. 60 bar und kann temperaturabhängig schwanken.The valve 7 is practically a simple shut-off valve, which is held in its blocking position by the internal pressure in the container 6. The internal pressure is z. B. 60 bar and can fluctuate depending on the temperature.

Das Flächenverhältnis von Abdichtungsfläche von Ventil 7 und Membranfläche beträgt z. B. etwa 1 : 60. Bei Atmosphärendruck in der Vorrichtung ist der Behälter abgesperrt. Wirkt nun der Wasserdruck auf die Membran übersetzt diese die Druckwirkung, die sie auf das Ventil überträgt um das 60-fache. Das Ventil öffnet, Gas (C02) strömt in Kammer 5, aus der die Abströmung, wie schon beschrieben, gedrosselt ist.The area ratio of the sealing area of valve 7 and membrane area is z. B. about 1:60. At atmospheric pressure in the device, the container is shut off. If the water pressure acts on the diaphragm, this translates the pressure effect that it transmits to the valve by 60 times. The valve opens, gas (C0 2 ) flows into chamber 5, from which the outflow, as already described, is throttled.

Gegenüber einem durch Druckfeder gesteuerten Reduzierventil, bei dem der Federdruck im wesentlichen gleich bleibt, übersetzt die Membran 4 alle Schwankungen des Wasserdruckes und steuert so den C02-Austritt in Abhängigkeit vom Wasserdruck und seinen Schwankungen.Compared to a reducing valve controlled by a compression spring, in which the spring pressure remains essentially the same, the membrane 4 translates all fluctuations in the water pressure and thus controls the CO 2 discharge as a function of it of water pressure and its fluctuations.

Bei einem Kleingerät ist damit zu rechnen, daß bei dem Austritt aus dem Imprägnierungssystem noch Gasblasen von überdimensionaler Größe vorhanden sind. Diese Gasblasen müssen abgefiltert werden, und zwar so, daß sie dem Gasimprägnierungsraum selbst zugeführt werden, so daß sie nicht in die Abgabestelle befördert werden. Das würde dort bedeuten, daß größere Bläschen in die Atmosphäre entweichen und somit würde die Wirtschaftlichkeit hinsichtlich des Gaseinsatzes beeinträchtig werden. Diesen Vorgang kann man verhindern durch den Einbau eines Wendels, besser aber durch den Einbau eines meanderförmigen Systems, welches jeweils senkrecht im System verläuft, wobei der höchste Punkt in den Gasraum mündet. An dieser Stelle können ein oder mehrere Austrittsöffnungen angebracht werden, die das leichtere Gas an diesem oberen Punkt entweichen lassen, damit es dem Gasraum des Injektorsystems erneut zugeführt werden kann, während das so abgefilterte und feinimprägnierte Wasser in die Ausgabezone befördert wird.In the case of a small appliance, it is to be expected that gas bubbles of oversized size will still be present when it exits the impregnation system. These gas bubbles must be filtered out in such a way that they are supplied to the gas impregnation room itself so that they are not transported to the delivery point. This would mean that larger bubbles would escape into the atmosphere and the economy of gas use would be impaired. This process can be prevented by installing a helix, but better by installing a meandering system that runs vertically in the system, with the highest point opening into the gas space. At this point, one or more outlet openings can be made that allow the lighter gas to escape at this upper point so that it can be fed back into the gas space of the injector system while the filtered and finely impregnated water is conveyed into the discharge zone.

Claims (10)

1. Process for the preparation of watering water for household or hobby gardeners, in which the watering water is impregnated with C02 and fertilizer is dissolved in the impregnated water, characterized in that the water is taken from a normal mains supply pipe at the pressure and the temperature of the pipe and is first conveyed into a control zone in which, by means of the present pressure of the water flowing in, a closing and pressure regulating valve of a C02 pressure gas source is adjusted, and in that the water is conveyed from the control zone to the entrance end of an impregnation zone which is in the form of an elongated, straight, flow route and in which at at least two shoulder-like cross-sectional widenings of the flow route, which widenings are at a distance from each other, the pressure of the water is abruptly lowered and the areas of the water-flow from lowered pressure to the drawing in of C02 gas into the water stream are brought into contact with a distribution zone via thin, open bores corresponding to the width of the shoulder and being situated in the cross-sectional plane connecting to the annular shoulder, into which distribution zone is conveyed the C02 gas with the gas pressure controlled by the water inlet pressure, and in that the water is brought into contact with the liquid or solid fertilizers directly after the contact areas with the C02 distribution zone.
2. Device to carry out the process in accordance with Claim 1, with an impregnation zone which can be connected to a normal water mains supply pipe, a supply container for CO2 gas which is under pressure, a device to introduce the gas into the water flowing through the impregnation zone, and with a device to introduce fertilizers into the water, characterized in that a control chamber (3) is provided which, with its inlet (2), is able to be connected to the water mains supply pipe and in which there is arranged a control device (4) working in relation to the water-supply pressure, this control chamber having the effect of opening and regulating the pressure of an outlet and pressure reduction valve (7) of a C02 pressure gas container (6) ; in that there is provided a C02 gas distribution chamber (12) which is connected to the outlet and pressure reduction valve (7) and in that the one end of an elongated, straight, flow channel (13) is connected to the outlet (14) of the control chamber (3), which flow channel is widened, in each case by thin annular shoulders, at at least two places which are at a distance viewed in the direction of flow and in the cross-sectional plane which is connected to the annular shoulder is, by means of several bores (17) which are distributed in the circumferential direction and correspond to the width of the shoulder, in a free flow connection with the C02 gas distribution chamber (12), the dimensions of the annular shoulders and the pressure, controlled dependent on the water-supply pressure, in the C02 gas distribution chamber are selected in such a manner that in each case an abrupt pressure reduction is produced in the area of the annular shoulders, which pressure reduction is sufficient to draw the gas into the water flow, and in that a contact area between the water flow and a fertilizer supply is provided in the flow channel (13) in an area after a water/gas contact plane.
3. Device in accordance with Claim 2, characterized in that a supply container for liquid fertilizer is provided, which supply container is connected to the flow channel (13 ; 33) by means of a line (25 ; 36) and is capable of being impacted upon by a delivery pressure dependent on the pressure in the control chamber (3) and/or by the abrupt fall in pressure under one of the ring shoulders as a draw-in pressure.
4. Device in accordance with Claim 2 or 3, characterized in that a control and mixing block (1) is provided which can be connected to the water supply line, which control block or mixing block has the control chamber (3), the pressure- dependent control device (4) for the outlet and pressure reduction valve (7), the flow channel (13) and the connections for the C02 pressure container (6) and the fertilizer supply (25, 26), and an outlet connection (28).
5. Device in accordance with Claims 2 to 4, characterized in that a membrane (4) which divides the control chamber (3) is provided as a control device in the control chamber (3), the movable area of this membrane being in direct connection with the outlet and pressure reduction valve (7).
6. Device in accordance with Claims 2 to 5, characterized in that a flow throttle device (11) is provided in the flow connection (5, 10) between the outlet valve and pressure reduction valve (7) and the C02 gas distribution chamber (12).
7. Device in accordance with Claims 2 to 6, characterized in that at least one additional annular-shoulder-like widening is provided in the flow channel (13) at a distance after the last contact plane between water and C02 gas, and in the plane directly following the widening shoulder there is provided a set of bores which are distributed in the circumferential direction, which bores open into a feed-back channel (19) which is in a flow connection (20) near the end of the flow channel (13) with the flow of water ultra-finely impregnated with C02.
8. Device in accordance with one of the Claims 2 to 7, characterized in that a liquid fertilizer supply is, directly via its gas head space or indirectly via the flexibly designed supply container, capable of being impacted upon by the pressure in the gas distribution chamber (10, 12; 34).
9. Device in accordance with one of the preceding Claims 2 to 8, characterized in that a liquid fertilizer supply (38) is connected via a draw in pipe (36) to an area of reduced pressure under an annular shoulder of the flow channel (33).
10. Device in accordance with one of Claims 2 to 7, characterized in that a supply of solid fertilizer is arranged in the flow channel (13 or 33) in such a way that it can be directly washed by the water flow and the mixture can be adjusted.
EP85103243A 1984-03-22 1985-03-20 Method and device for the preparation of liquids for fertilizer pouring of plants for household or hobby gardeners Expired EP0155683B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103243T ATE46455T1 (en) 1984-03-22 1985-03-20 METHOD AND DEVICE FOR PREPARING LIQUIDS FOR GARDENING PLANTS FOR HOUSEHOLD OR HOBBY GARDENER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843410621 DE3410621A1 (en) 1984-03-22 1984-03-22 METHOD AND DEVICE FOR PREPARING LIQUIDS FOR DISCHARGING PLANTS FOR HOUSEHOLD AND HOBBY GARDENS
DE3410621 1984-03-22

Publications (3)

Publication Number Publication Date
EP0155683A2 EP0155683A2 (en) 1985-09-25
EP0155683A3 EP0155683A3 (en) 1987-08-12
EP0155683B1 true EP0155683B1 (en) 1989-09-20

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EP85103243A Expired EP0155683B1 (en) 1984-03-22 1985-03-20 Method and device for the preparation of liquids for fertilizer pouring of plants for household or hobby gardeners

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EP (1) EP0155683B1 (en)
AT (1) ATE46455T1 (en)
BE (1) BE901999A (en)
CH (1) CH664703A5 (en)
DE (2) DE3410621A1 (en)
NL (1) NL193280C (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432440A1 (en) * 1984-09-04 1986-03-13 Technica Entwicklungsgesellschaft mbH & Co KG, 2418 Ratzeburg Arrangement for treating irrigation water enriched with CO2 and H2CO3
DE3436660A1 (en) * 1984-10-05 1986-04-10 Technica Entwicklungsgesellschaft mbH & Co KG, 2418 Ratzeburg METHOD AND DEVICE FOR THE FURTHER TREATMENT OF WATER INTENDED FOR DRINKING AND USE
DE4016727A1 (en) * 1990-05-24 1991-11-28 Apv Rosista Gmbh DEVICE FOR MIXING A FLUID AND A LIQUID, ESPECIALLY FOR CONTRIBUTING CARBON DIOXIDE IN A WATER-BASED BEVERAGE
WO1993013746A1 (en) * 1991-05-24 1993-07-22 Technica Entwicklungsgesellschaft Mbh & Co. Kg Hair and skin care using co2-enriched water
ATE110256T1 (en) * 1991-05-24 1994-09-15 Technica Entwicklung METHOD AND ARRANGEMENT FOR TREATMENT OF HAIR, SCALP AND/OR BODY SKIN.
DE4328590C1 (en) * 1993-08-25 1995-02-09 Technica Entwicklung Device for improving the quality of normal tap water
CH720058A1 (en) 2022-09-23 2024-04-15 Cobea Ag Component system and method for producing a tooth whitening preparation.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899971A (en) * 1959-08-18 Feeding devices
DE866341C (en) * 1950-03-04 1953-02-09 Rohrbau Mannesmann G M B H Process for fertilizing crops with carbonic acid
FR1171059A (en) * 1957-04-10 1959-01-22 Soc Fr Regulateurs Arca Apparatus for mixing fluids by injecting one of the fluids into a pipe through which another fluid passes
US3874277A (en) * 1972-06-28 1975-04-01 Matsushita Electric Ind Co Ltd Apparatus for preparing mineral water

Also Published As

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BE901999A (en) 1985-07-16
NL193280C (en) 1999-05-06
DE3410621A1 (en) 1985-09-26
ATE46455T1 (en) 1989-10-15
NL193280B (en) 1999-01-04
EP0155683A3 (en) 1987-08-12
NL8500851A (en) 1985-10-16
EP0155683A2 (en) 1985-09-25
CH664703A5 (en) 1988-03-31
DE3573075D1 (en) 1989-10-26

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