EP0759806B1 - Dispositif pour le melange de deux fluides - Google Patents

Dispositif pour le melange de deux fluides Download PDF

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Publication number
EP0759806B1
EP0759806B1 EP95915124A EP95915124A EP0759806B1 EP 0759806 B1 EP0759806 B1 EP 0759806B1 EP 95915124 A EP95915124 A EP 95915124A EP 95915124 A EP95915124 A EP 95915124A EP 0759806 B1 EP0759806 B1 EP 0759806B1
Authority
EP
European Patent Office
Prior art keywords
tube
nozzles
fluids
guide channel
wall
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.)
Expired - Lifetime
Application number
EP95915124A
Other languages
German (de)
English (en)
Other versions
EP0759806A1 (fr
Inventor
Edward Shafik Gaddis
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.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
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 Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Publication of EP0759806A1 publication Critical patent/EP0759806A1/fr
Application granted granted Critical
Publication of EP0759806B1 publication Critical patent/EP0759806B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B01F25/211—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 the injectors being surrounded by guiding tubes
    • 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
    • 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
    • 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
    • B01F25/23—Mixing by intersecting jets
    • 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
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/75—Flowing liquid aspirates gas

Definitions

  • the invention relates to a device according to the Preamble of claim 1.
  • Fluids in the sense of the invention are liquids and gases.
  • the device can be used for mixing a liquid with a gas or to mix two insoluble in each other Liquids or for mixing or homogenizing two mutually soluble liquids can be used.
  • the following explanations apply, representative of the other two ways of mixing one Liquid with a gas.
  • Such “mixing” is used, for example, at Wastewater treatment carried out when as much oxygen as possible to be introduced into the water, which is bad in water is soluble. It is the same for chemical purposes Reactions as well as absorption and desorption processes between a gas and a liquid required one large mass transfer area between the two fluids to generate high turbulence. The exchange of materials between the This intensifies gas and the liquid.
  • the invention is based, for the beginning described device a structurally simple structure specify.
  • This device is in one piece with tube and guide channel executed. It can be manufactured in a compact design and is therefore easy to use. This allows the Device in addition to its direct use as Mixing device, for example, as a diving unit for large-volume liquid containers are used.
  • the guide channel is simply designed because of its structure the existing wall of the pipe is used. It therefore only need the second walls of the Guide channel outside or inside the pipe positioned and firmly connected to the pipe.
  • the device according to the Invention further for mixing a liquid with a Gas described.
  • the device can also not soluble for mixing two into each other Liquids or for homogenizing two into each other soluble liquids can be used.
  • a gas GS and a liquid FL together be mixed.
  • the largest possible Amount of oxygen is introduced into the FL.
  • the bottom - two nozzles 2 and 3 are arranged, which on the one hand the FL and on the other hand the GS.
  • the nozzles 2 and 3 are arranged so that the out of them escaping jets of liquid and gas in guide channels 4 and 5 a guiding device, which in turn has two diametrically opposite points in the tube 1 flow into.
  • the tube 1 is including the guide channels 4 and 5 and the nozzles 2 and 3 in a large-volume container 6 used in the liquid, for example Sewage is located.
  • the device can, for example, according to FIGS. 2 and 3 be built.
  • this embodiment of the device are two curved, closed walls 7 on the outside of the tube 1 and 8 attached, each forming an axial running cavity on both axial edges firmly with the Wall of the tube 1 are connected.
  • the walls 7 and 8 are 3 on the end faces of their ends 9 and 10 locked.
  • the nozzles 2 protrude at the other, open ends and 3 in from the walls 7 and 8 and the wall of the tube 1 enclosed cavities.
  • Walls 7 and 8 form together with the wall of the tube 1 Guide device, which are explained here from those in FIG. 1 Guide channels 4 and 5 exist.
  • In the area of the ends 9 and 10 of the Walls 7 and 8 is the wall of tube 1, respectively breached.
  • the corresponding holes 11 and 12 in the Wall of the tube 1 are each in Fig. 3 by two Dashes indicated.
  • Pipe 1 and walls 7 and 8 exist for example made of plastic or metal.
  • the walls 7 and 8 can be bent semicircularly according to FIG. 2 be. They then suitably consist of half tubes.
  • walls 7 and 8 can also be bent in a U-shape Hollow profiles are used.
  • the guide channels 4 and 5 run essentially parallel to Vessel 1.
  • the two in the guide channels 4 and 5 separated guided jets of liquid and gas meet in tube 1 in a impact zone PZ with a dashed border.
  • the Nozzles 2 and 3 suck liquid or a gas-liquid mixture from the area of the lower end of the pipe 1 and thereby ensure a through the in Fig. 1st drawn arrows indicated internal circuit.
  • the FL is the tube 1 from above or in external circulation, for example by means of a pump 13. After The liquid can be separated from an overflow 14 from the Drain container 6. The excess gas can come from the Device partly through the pipe 1 and partly through the container 6 emerge.
  • nozzles 2 and 3 are shown. But it can also more than two separate nozzles be used.
  • the nozzles 2 and 3 are preferably as Two-substance nozzles made from two concentric tubes. she are preferred in terms of geometry and dimensions identically constructed, so that the tube 1 two or more uniform flows of liquid and gas are supplied. If more than two nozzles are used, then the Junction points of the corresponding guide channels are useful evenly offset on the circumference of the tube 1. At there are three nozzles between the confluence points for example, an angle of 120 °.
  • the device according to FIGS. 1 to 4 basically works as follows:
  • An FL and a GS are separated by means of nozzles 2 and 3 fed. Due to the shear field of the FL to the The gas GS becomes outlet openings of the nozzles 2 and 3 dispersed. The gas bubbles are taken away by the FL and the resulting two-substance mixture bounces in two flows the impact zone PZ on each other. The gas bubbles are thereby further dispersed so that an increased mass transfer takes place. A large part of the gas bubbles remains in the Impact zone PZ in limbo and is constantly widening dispersed. This leads to a further increase in Mass exchange.
  • the impact zone PZ is from this Basically as centrally as possible in the vessel 1, that is to say approximately in it Center.
  • the lower part of the tube 1 also concentrically from a distance be surrounded by the same pipe section.
  • the nozzles 2 and 3 then open into an annulus.
  • the corresponding Guide device is from the outside through the pipe section and inside again limited by the wall of the tube 1. Since the Breakthrough of the tube 1 at the level of the impact zone PZ is circumferential, the lower part of the tube 1 is appropriate connected to the concentric pipe section. You can do this for example, schematically indicated webs 15 are used be fixed to the lower part of the tube 1 and the Pipe piece are connected. The pipe section is in turn fixed and all around tight with the upper part of the tube 1 connected. In this case, the guiding device is ring-shaped.
  • the tube 1 On the one hand and the pipe section, on the other hand, delimits the walls of the Represent guidance device.
  • the Device more than two nozzles are expediently used. Four are preferably circumferential by 90 ° each offset nozzles used. The number of nozzles is also arbitrary here.
  • the nozzles can be arranged so that their Radial body in the guide device protrude into it.
  • the structure of such a nozzle is shown in 5 shows an enlarged illustration, for example.
  • she consists of a tube 16, the one in its peripheral surface Has nozzle opening 17.
  • the FL fed through the pipe 16 is deflected in this way by about 90 °, so that it is in the Guide device of the tube 1 can occur, which by the 5 indicated walls 1 and 7 is limited.
  • the GS is a thinner tube in the tube 16 of the nozzle 18 integrated, the outlet opening 19 at the nozzle opening 17 lies.
  • the nozzle body of the nozzles can also in protrude axially into the guide device.
  • the device described in the foregoing can be used as such can be used directly, for example, for wastewater treatment. But it can also, as already described for Fig. 1, in one large-volume container 6 can be used as a diving unit. There is the possibility of several such Use devices at the same time, as for three Devices A, B and C emerge from Fig. 6. That has the Advantage that the device with optimal compact Dimensions can be made regardless of the Use case. It will only be the number required used by devices as diving units.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Nozzles (AREA)

Abstract

L'invention a pour objet un dispositif pour le mélange de deux fluides, dont au moins un est un liquide, présentant un récipient tubulaire (1) ouvert à ses deux extrémités axiales, destiné à contenir le fluide, au moins deux buses (3, 4) séparées l'une de l'autre pour l'alimentation en fluide, et un dispositif d'alimentation dans une extrémité duquel les buses (3, 4) font saillie. Le dispositif l'alimentation débouche, par son autre extrémité, à peu près en son milieu, dans le récipient (1) ouvert à cet endroit et définit une zone d'impact (PZ) à cet endroit, dans laquelle les courants de fluide injectés par les buses (3, 4) à leur sortie du dispositif d'alimentation se heurtent mutuellement. Le dispositif d'alimentation fixé solidairement au récipient (1) présente au moins deux parois fermées formant entre elles un espace creux et est ouvert à ses deux extrémités. L'une des parois du dispositif d'alimentation constitue la paroi du récipient (1).

Claims (6)

  1. Dispositif plongeur pour le mélange de deux fluides, dont au moins l'un est un liquide, et présentant un tube (1) ouvert aux deux extrémités axiales, pour recevoir les fluides, au moins deux lances (2, 3) pour amener les fluides, et un conduit de guidage (4, 5) délimité par des parois, dans lequel les lances s'engagent, à l'une de ses extrémités, et qui débouche dans le tube (1) par son autre extrémité, dispositif dans lequel le tube (1) entoure, à hauteur du débouché dans la zone médiane du conduit de guidage (4, 5), une zone de collision (PZ) dans laquelle entrent en collision des flux de fluides sortant du conduit de guidage (4, 5) et injectés par les lances (2, 3), dispositif caractérisé en ce qu'au moins une paroi du conduit de guidage (4, 5) est formée par une partie de la paroi du tube (1).
  2. Dispositif suivant la revendication 1, caractérisé en ce que le conduit de guidage présente au moins deux espaces vides, qui sont délimités chacun par des demi-tubes placés à l'extérieur du tube (1) et raccordés à la paroi de ce dernier.
  3. Dispositif suivant la revendication 1, caractérisé en ce que le conduit de guidage présente au moins deux espaces vides, qui sont délimités chacun par des profilés creux en forme de U placés à l'extérieur du tube (1) et raccordés à la paroi de ce dernier.
  4. Dispositif suivant la revendication 1, caractérisé en ce que le conduit de guidage présente un tronçon de tube concentrique avec le tube (1) et en appui sur ce dernier.
  5. Dispositif suivant l'une des revendications 1 à 4, caractérisé en ce qu'un tube (18) servant à amener un gaz en tant que l'un des fluides est intégré aux lances (2, 3).
  6. Utilisation d'un dispositif suivant l'une des revendications 1 à 5, comme groupe plongeur pour un récipient à liquides (6) de gros volume.
EP95915124A 1994-05-26 1995-03-31 Dispositif pour le melange de deux fluides Expired - Lifetime EP0759806B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4418287A DE4418287C2 (de) 1994-05-26 1994-05-26 Vorrichtung zum Mischen zweier Fluide
DE4418287 1994-05-26
PCT/DE1995/000451 WO1995032795A1 (fr) 1994-05-26 1995-03-31 Dispositif pour le melange de deux fluides

Publications (2)

Publication Number Publication Date
EP0759806A1 EP0759806A1 (fr) 1997-03-05
EP0759806B1 true EP0759806B1 (fr) 1998-09-30

Family

ID=6518954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95915124A Expired - Lifetime EP0759806B1 (fr) 1994-05-26 1995-03-31 Dispositif pour le melange de deux fluides

Country Status (15)

Country Link
US (1) US5798061A (fr)
EP (1) EP0759806B1 (fr)
JP (1) JP3672923B2 (fr)
KR (1) KR100319284B1 (fr)
CN (1) CN1072976C (fr)
AU (1) AU2212995A (fr)
BR (1) BR9507689A (fr)
CA (1) CA2189998C (fr)
CZ (1) CZ286481B6 (fr)
DE (3) DE4418287C2 (fr)
ES (1) ES2123244T3 (fr)
MX (1) MX9605815A (fr)
NO (1) NO319891B1 (fr)
PL (1) PL177300B1 (fr)
WO (1) WO1995032795A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19749735C1 (de) * 1997-11-11 2000-02-10 Invent Gmbh Entwicklung Neuer Technologien Verfahren und Vorrichtung zur Herstellung von Enzymen
CN1094381C (zh) * 1998-07-14 2002-11-20 社团法人高等技术研究院研究组合 利用声音共振的物质混合装置
AU752766B2 (en) * 1999-06-29 2002-09-26 Sumitomo Metal Industries Ltd. Method of dissolving water-soluble gas in sea for isolation into deep sea, device therefor, laying method for device
US6273402B1 (en) * 2000-01-10 2001-08-14 Praxair Technology, Inc. Submersible in-situ oxygenator
FR2838067B1 (fr) * 2002-04-04 2005-02-04 Toulouse Inst Nat Polytech Procede de mise en contact de phases notamment gaz/liquide, reacteur dit a impacts multidirectionnels associe, et application au traitement oxydant de l'eau
SE525113C2 (sv) * 2003-04-08 2004-11-30 Tetra Laval Holdings & Finance Metod och anordning för kontinuerlig blandning av två flöden
CN100364656C (zh) * 2005-02-05 2008-01-30 中国石油化工股份有限公司 一种用于液相反应的撞击流反应器
US8544827B1 (en) 2009-04-28 2013-10-01 Nested Nozzle Mixers, Inc. Nested nozzle mixer
CN103071444B (zh) * 2013-01-30 2014-12-10 北京工商大学 一种气液反应装置
CN103449393B (zh) * 2013-08-21 2014-12-17 瓮福（集团）有限责任公司 一种饲料级磷酸氢钙生产装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597422A (en) * 1948-09-11 1952-05-20 Little Inc A Process of forming dispersions
US3391908A (en) * 1966-03-28 1968-07-09 Exxon Research Engineering Co Variable flow opposed jet mixer
US3538933A (en) * 1967-08-07 1970-11-10 British Oxygen Co Ltd Fluid mixing device
GB1462603A (en) * 1975-01-10 1977-01-26 Consiglio Nazionale Ricerche Device for mixing liquids in chemical/physical analyses
US4482524A (en) * 1978-01-31 1984-11-13 Ari Technologies, Inc. Autocirculation apparatus
JPS5915005B2 (ja) * 1979-10-17 1984-04-07 コニカ株式会社 分散方法
US4300924A (en) * 1980-03-24 1981-11-17 Paccar Inc. Exhaust gas scrubber for internal combustion engines
US4533254A (en) * 1981-04-17 1985-08-06 Biotechnology Development Corporation Apparatus for forming emulsions
JPS60176300U (ja) * 1984-04-23 1985-11-21 海洋工業株式会社 揚水筒
DE3818991C1 (en) * 1988-06-03 1989-11-23 Alfons Prof. Dr.-Ing. Vogelpohl Process and apparatus for mixing two fluids
DE3818911A1 (de) * 1988-06-03 1989-12-14 Hellmich Gmbh U Co Kg Sorptionseinrichtung zum reinigen von abgasen
US5364530A (en) * 1988-11-17 1994-11-15 Otto Oeko-Tech Gmbh & Co. Kg Process for the biological purification of sewage

Also Published As

Publication number Publication date
DE4418287A1 (de) 1995-12-07
AU2212995A (en) 1995-12-21
PL177300B1 (pl) 1999-10-29
NO965010L (no) 1996-11-25
CN1072976C (zh) 2001-10-17
DE59503792D1 (de) 1998-11-05
PL317347A1 (en) 1997-04-01
CA2189998C (fr) 2004-09-14
MX9605815A (es) 1998-05-31
NO319891B1 (no) 2005-09-26
KR970703194A (ko) 1997-07-03
NO965010D0 (no) 1996-11-25
ES2123244T3 (es) 1999-01-01
DE19580560D2 (de) 1998-07-02
CA2189998A1 (fr) 1995-12-07
KR100319284B1 (ko) 2002-04-22
DE4418287C2 (de) 1996-04-11
CN1154078A (zh) 1997-07-09
CZ345296A3 (en) 1997-05-14
JP3672923B2 (ja) 2005-07-20
BR9507689A (pt) 1997-10-07
CZ286481B6 (en) 2000-04-12
JPH10503968A (ja) 1998-04-14
WO1995032795A1 (fr) 1995-12-07
EP0759806A1 (fr) 1997-03-05
US5798061A (en) 1998-08-25

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