EP0142595A2 - Procédé et dispositif de préparation d'eau d'arrosage pendant le processus d'arrosage pour l'enrichissement avec CO2 et H2CO3 - Google Patents

Procédé et dispositif de préparation d'eau d'arrosage pendant le processus d'arrosage pour l'enrichissement avec CO2 et H2CO3 Download PDF

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Publication number
EP0142595A2
EP0142595A2 EP84101155A EP84101155A EP0142595A2 EP 0142595 A2 EP0142595 A2 EP 0142595A2 EP 84101155 A EP84101155 A EP 84101155A EP 84101155 A EP84101155 A EP 84101155A EP 0142595 A2 EP0142595 A2 EP 0142595A2
Authority
EP
European Patent Office
Prior art keywords
liquid
pressure
flow
gas
injector
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.)
Granted
Application number
EP84101155A
Other languages
German (de)
English (en)
Other versions
EP0142595A3 (en
EP0142595B1 (fr
Inventor
Alexander Kückens
Horst Köhl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technica Entwicklungs GmbH and Co KG
Original Assignee
Technica Entwicklungs GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Technica Entwicklungs GmbH and Co KG filed Critical Technica Entwicklungs GmbH and Co KG
Priority to AT84101155T priority Critical patent/ATE46278T1/de
Publication of EP0142595A2 publication Critical patent/EP0142595A2/fr
Publication of EP0142595A3 publication Critical patent/EP0142595A3/de
Application granted granted Critical
Publication of EP0142595B1 publication Critical patent/EP0142595B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
    • B01F23/23231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and gas
    • 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
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
    • 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
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
    • 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
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
    • B01F25/31425—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction with a plurality of perforations in the axial and circumferential direction covering the whole surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids

Definitions

  • the invention relates to a method for preparing the casting liquid, such as water, during the casting process for enrichment with C0 2 and H 2 C0 3 for greenhouses and for outdoor crops.
  • a mechanical circulation pump or a gas pump can be used, through which the CO 2 gas is pressed into the headspace under pressure and thereby entrains liquid from the water supply (see GB- PS 1 274 363).
  • the processing of the impregnated liquid is extremely difficult in the case of portions of larger CO 2 bubbles in the liquid , because the bubbles block the capillary-like flow paths and impede the flow.
  • a larger proportion of larger CO 2 bubbles leads to strong segregation and to the CO 2 in gas form in the atmosphere.
  • the new impregnation process is extremely economical compared to the known processes, so that it can also be used on a large scale, for example in agriculture, in horticulture, in forestry or the like.
  • the essential The expanded range of applications is also based on the fact that, due to the pressure independence, the new process can be used with the same effect under all conditions specified by the place of use, eg regardless of the usual working pressure of the irrigation water pipe system and irrespective of the type of casting used. There is therefore no need for any special adaptation measures to the special conditions of the system, no greater storage capacity or pressure change devices between areas of substantially different pressures.
  • impregnation levels are achieved that are not less than those of the usual high-pressure impregnation systems.
  • the new process enables a fine impregnation in which there are no disruptive, relatively large bubbles in the liquid.
  • Claim 2 relates to a preferred embodiment of the new method, while the measures according to claim 3 relate particularly to the treatment of irrigation water.
  • Irrigation water is understood here to mean normal water or water enriched with fertilizer salts or the like. “Normal” C0 2 absorption capacity means that of normal, ie not chemically pure water.
  • the new process enables irrigation water to be treated in a way that approximates the conditions that occur in a particularly optimal form in nature in the areas of the earth close to the roots.
  • the required negative pressure is generated by the root system as such, and the CO 2 is partially emitted by the root system itself or made available as soil-based CO 2 , the C0 2 being in gaseous form at approximately atmospheric pressure and temperature.
  • the extraordinarily good fine impregnation of the liquid with CO 2 is achieved by continuous post-impregnation through the various injector stages. Due to the diameter widening and the sudden decrease in the flow velocity of the liquid, the amount of gas absorbed in the preceding injector stage is distributed much better over the cross-section of the liquid, which at the same time decisively improves the gas absorption capacity of the liquid in the subsequent injector stage. In the case of large cross-sections of the liquid flow, it can make sense to direct the liquid flow as a ring flow through the injector-nozzle system in order to ensure better mixing of the liquid with the gas quantities taken up.
  • a further measure, which substantially supports the fine impregnation and supports the homogeneous mixing of the liquid, is that a further injector nozzle system is connected downstream of the gas injector stages, but this serves only for the backmixing of already completely impregnated liquid with the liquid in the nozzle system.
  • the new arrangement can be used to supply the impregnated liquid directly to an extraction point or consumer point by means of the system described, so that the impregnated liquid can be dispensed directly.
  • the new arrangement is combined with a supply pressure container in which a supply of finely impregnated liquid is kept ready, the supply of the liquid taking place through the injector nozzle system and the discharge from the liquid supply in contrast shielded or offset in such a way that any relatively large bubbles that are present have sufficient time to rise upwards into the gas space in the liquid supply.
  • the pressure vessel 1 consists of a pressure jacket 2 and cover 3 and bottom 4.
  • a liquid quantity 8 between the minimum fluid level 26 and the maximum fluid level 27 is maintained in the pressure vessel by the sensors shown.
  • a head space 7 remains above the liquid, which is connected to the gas, e.g. Carbon dioxide gas, under a predetermined pressure of e.g. is kept filled up to 6 bar.
  • the gas is supplied e.g. via a pressure sensor x).
  • a drain 6 for the impregnated liquid from the liquid supply 8 is provided in the bottom of the container 4.
  • an injector-nozzle system 9 is arranged, which is installed in the cover 3.
  • the system 9 has a central flow channel, the inlet x) or a pressure reducer
  • the injector-nozzle system 9 has injector stages 12a, 12b, 12c which are located one behind the other in the flow direction. Before each injector stage, the clear width of the liquid flow channel is widened in stages, as shown at 13a, 13b, 13c. As a result, the flow velocity of the liquid changes suddenly as soon as it enters an injector stage. Immediately behind the diameter widening are the suction channels 14a, 14b, 14c, which in the example shown open into the gas head space 7.
  • the gas is thus sucked out of the gas head space 7 via the channels 14, so that gas and liquid mix. Since the incoming gas remains primarily in the area of the outer layers of liquid, the abrupt widening of the diameter and the abrupt reduction in the flow rate that this entails ensures that all layers of the liquid flow are thoroughly mixed when the liquid enters the next injector stage. This results in homogenization of the mixing on the one hand and an improvement in the renewed gas absorption or re-impregnation in the subsequent stage. At least two injector stages 12a, 12b are necessary to obtain the required fine impregnation.
  • another injector nozzle system .15 is connected axially downstream of the injector nozzle system 9.
  • this system has two injector stages 16a, 16b.
  • the clear width of the liquid flow channel is changed abruptly before entering an injector stage in order to promote mixing.
  • These injector stages 16a, 16b are not used for re-impregnation, but for Promotion of mixing and homogenization and to reduce the proportion of larger bubbles.
  • the system 15 has an outer jacket 18, closed off from the gas space 7, the lower open edge of which ends below the lowest liquid level 26 in the amount of liquid 8.
  • the liquid takes up gas from the head space 7 in the manner described.
  • the liquid level 26 rises due to the supplied liquid.
  • the head space 7 is reduced in volume. If this reduction in volume is greater than the gas absorption of the liquid, the pressure in the head space 7 increases at the same time, so that the gas supply via the supply line 5 is switched off. If the gas absorption by the liquid is greater, gas continues to be fed into the head space 7 during the impregnation, so that the pressure is maintained in this space.
  • the pressure in the gas space can, for example, depend on the line pressure of the irrigation water network, for example on a pressure of up to 6 bar or be held above.
  • the pressure container 1 is omitted.
  • the injector nozzle system 9 is surrounded by a jacket, the annular space of which is connected to the compressed gas source, while the jacket 18 of the injector nozzle system 15 remains closed at the lower end, as indicated at 22. In this case, the flow channel for the liquid continues, as indicated at 6a, to the point of withdrawal.
  • the difference between the smallest and the largest liquid level 26 or 27 is such that when liquid is removed individually from the pressure vessel 1, the supply of liquid through the injector nozzle systems 9 and 15 is not too frequent, so that a pump supplying the liquid to the inlet 10 is not needs to be switched on and off constantly.
  • the flow cross-section for the injector nozzle systems 9 and 15 is significantly increased.
  • a displacement body 30 in the systems 9 and 15, which displaces the liquid in a longitudinal flow through the system.
  • the displacement body 30 could be gradually or gradually enlarged in diameter or could also be designed as a smooth cylinder body in the direction of flow.
  • the cross-sectional shape and cross-sectional change of the body 30 depends on the volume to be enforced and must ensure that the desired abrupt speed reduction of the liquid is achieved from injector stage to injector stage.
  • the arrangement described works reliably both for direct dispensing and for the depicted indirect dispensing of impregnated liquid, namely in a pressure range of approximately 1 bar upwards.
  • the arrangement is therefore particularly suitable for use in horticultural businesses, since it can be used for all pressure conditions which occur there, since any compression of the gas in the water which is disadvantageous in practice is avoided because of the reduced impregnation pressure.
  • the C0 2 gas pressure is the same as the output pressure.
  • a pressure reduction valve is useful in the gas line, which is automatically adjusted to the optimal gas pressure when the device is started, depending on the water line pressure, e.g. via a membrane control device exposed to water pressure.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pipeline Systems (AREA)
  • Nozzles (AREA)
  • Cultivation Of Plants (AREA)
  • Physical Water Treatments (AREA)
  • Water Treatment By Sorption (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
EP84101155A 1983-08-23 1984-02-06 Procédé et dispositif de préparation d'eau d'arrosage pendant le processus d'arrosage pour l'enrichissement avec CO2 et H2CO3 Expired EP0142595B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84101155T ATE46278T1 (de) 1983-08-23 1984-02-06 Verfahren und vorrichtung zum aufbereiten von giesswasser waehrend des giessvorganges zur anreicherung mit co2 und h2co3.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3330375 1983-08-23
DE19833330375 DE3330375A1 (de) 1983-08-23 1983-08-23 Verfahren und anordnung zum impraegnieren einer fluessigkeit mit einem gas durch injektorwirkung, insb. zum impraegnieren von giesswasser mit co(pfeil abwaerts)2(pfeil abwaerts) fuer gartenbaubetriebe

Publications (3)

Publication Number Publication Date
EP0142595A2 true EP0142595A2 (fr) 1985-05-29
EP0142595A3 EP0142595A3 (en) 1987-07-15
EP0142595B1 EP0142595B1 (fr) 1989-09-13

Family

ID=6207225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84101155A Expired EP0142595B1 (fr) 1983-08-23 1984-02-06 Procédé et dispositif de préparation d'eau d'arrosage pendant le processus d'arrosage pour l'enrichissement avec CO2 et H2CO3

Country Status (6)

Country Link
EP (1) EP0142595B1 (fr)
JP (1) JPS6128427A (fr)
AT (1) ATE46278T1 (fr)
DE (2) DE3330375A1 (fr)
IN (1) IN160730B (fr)
ZA (1) ZA846545B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726366A1 (fr) * 2005-05-25 2006-11-29 Andritz AG Dispositif de flottation d'un liquide

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417546A1 (de) * 1984-05-11 1985-11-14 Technica Entwicklungsgesellschaft mbH & Co KG, 2418 Ratzeburg Verfahren und anordnung zur verringerung des anteils an kohlendioxyd in abgasen
DE3424974A1 (de) * 1984-05-21 1985-11-21 Technica Entwicklungsgesellschaft mbH & Co KG, 2418 Ratzeburg Verfahren zur verbesserung der wirtschaftlichkeit beim reinigen von rauchgas, z.b. nach dem "skrubber-prinzip"
DE3432440A1 (de) * 1984-09-04 1986-03-13 Technica Entwicklungsgesellschaft mbH & Co KG, 2418 Ratzeburg Anordnung zum aufbereiten von mit co(pfeil abwaerts)2(pfeil abwaerts) und h(pfeil abwaerts)2(pfeil abwaerts)co(pfeil abwaerts)3(pfeil abwaerts) angereichtertem giesswasser
DE3436660A1 (de) * 1984-10-05 1986-04-10 Technica Entwicklungsgesellschaft mbH & Co KG, 2418 Ratzeburg Verfahren und vorrichtung zur weiteren aufbereitung von, fuer trink- und brauchzwecke bestimmtem wasser
DE3720621C1 (de) * 1987-06-23 1988-11-24 Technica Entwicklungsgmbh & Co Verfahren zur Wurzelduengung von Kulturpflanzen
DE9205523U1 (de) * 1992-04-23 1992-08-20 Sonnenrein, Uwe, 4795 Delbrück Vorrichtung zur Behandlung von Flüssigkeiten unterschiedlicher Dichte oder von Gasen und Flüssigkeiten
US7671294B2 (en) * 2006-11-28 2010-03-02 Vladimir Belashchenko Plasma apparatus and system
JP5792533B2 (ja) * 2011-07-11 2015-10-14 岩井機械工業株式会社 気体溶解装置及び気体溶解方法
JP5884995B2 (ja) * 2013-12-02 2016-03-15 Ｊｆｅエンジニアリング株式会社 凝縮混合装置及びこれを有する蒸発ガス再液化装置
JP5945974B2 (ja) * 2013-12-02 2016-07-05 Ｊｆｅエンジニアリング株式会社 凝縮混合装置及びこれを有する蒸発ガス再液化装置
WO2016194056A1 (fr) * 2015-05-29 2016-12-08 Ｊｆｅエンジニアリング株式会社 Dispositif de condensation et de mélange et dispositif de re-liquéfaction de gaz évaporé le comprenant
JP6090616B2 (ja) * 2016-05-30 2017-03-08 Ｊｆｅエンジニアリング株式会社 凝縮混合装置及びこれを有する蒸発ガス再液化装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899971A (en) * 1959-08-18 Feeding devices
DE866341C (de) * 1950-03-04 1953-02-09 Rohrbau Mannesmann G M B H Verfahren zur Duengung von Kulturpflanzen mit Kohlensaeure
FR1171059A (fr) * 1957-04-10 1959-01-22 Soc Fr Regulateurs Arca Appareil mélangeur de fluides par injection de l'un des fluides dans une conduite parcourue par un autre fluide
DE3117797A1 (de) * 1981-05-06 1982-11-25 Roland 4630 Bochum Hagemann Vorrichtung zur kohlensaeureanreicherung von aquariumswasser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726366A1 (fr) * 2005-05-25 2006-11-29 Andritz AG Dispositif de flottation d'un liquide

Also Published As

Publication number Publication date
EP0142595A3 (en) 1987-07-15
DE3479710D1 (en) 1989-10-19
JPS647813B2 (fr) 1989-02-10
ZA846545B (en) 1985-04-24
EP0142595B1 (fr) 1989-09-13
DE3330375A1 (de) 1985-03-07
IN160730B (fr) 1987-08-01
JPS6128427A (ja) 1986-02-08
ATE46278T1 (de) 1989-09-15

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