EP0646407A1 - Wirbelmischer - Google Patents

Wirbelmischer Download PDF

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Publication number
EP0646407A1
EP0646407A1 EP94306975A EP94306975A EP0646407A1 EP 0646407 A1 EP0646407 A1 EP 0646407A1 EP 94306975 A EP94306975 A EP 94306975A EP 94306975 A EP94306975 A EP 94306975A EP 0646407 A1 EP0646407 A1 EP 0646407A1
Authority
EP
European Patent Office
Prior art keywords
vortex mixer
vortex
flow
fluid issuing
mixing chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94306975A
Other languages
English (en)
French (fr)
Inventor
Michael Joseph Bowe
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Publication of EP0646407A1 publication Critical patent/EP0646407A1/de
Withdrawn legal-status Critical Current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
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • 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
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/919—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings
    • B01F2025/9191—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component

Definitions

  • the present invention relates to vortex mixers.
  • Vortex mixers are devices which include a cylindrical mixing chamber having an axial outlet and a plurality of inlets so arranged that a vortex is set up in the mixing chamber when fluid is admitted to the mixing chamber via the inlets.
  • the arrangement may be such that two or more liquid reagents can be admitted to the chamber, or a single reagent or additive can be added to a main liquid flowing through the mixer.
  • the liquid leaving the vortex mixer does so in the form of a vortex.
  • This reverse flow can extend for a distance equal to several tens of the diameter of the exit pipe from the mixing chamber.
  • a method of mixing fluids by means of a vortex mixer as hereinbefore defined wherein there is included the operation of minimising reverse flow in the mixed fluid issuing from the vortex mixer.
  • an apparatus for mixing fluids comprising a vortex mixer as hereinbefore defined, wherein there is included means for minimising reverse flow in mixed fluids issuing from the vortex mixer.
  • the outlet from the mixing chamber preferably has an axially extending portion the diameter of which is greater than a third of that of the mixing chamber of the vortex mixer.
  • a radial diffuser such as to induce a radial component in the flow of the fluid issuing from the mixing chamber of the vortex mixer.
  • the radial diffuser may comprise a baffle at right angles to the flow of the mixed fluid issuing from the mixing chamber of the vortex.
  • radial diffuser which can be used is a plate having an axial inlet and at least one radially extending channel formed in it.
  • the axially extending portion of the outlet from the mixing chamber of the vortex mixer can have a form such that the diameter of the axially extending portion of the outlet from the mixing chamber of the vortex mixer increases in the direction of flow of the mixed fluid issuing from the mixing chamber of the vortex mixer.
  • an apparatus for mixing two reagents consists of a vortex mixer 1 consisting of a cylindrical mixing chamber 2 which has inlets 3 and 4 for two liquids to be mixed and an axial outlet 5.
  • the inlets 3 and 4 are so arranged that fluids entering the mixing chamber 1 through them do so with a tangential component of velocity so that a vortex is set up in the chamber 2 which leads to the mixing of the fluids.
  • the outlet 5 from the chamber 2 is so shaped and dimensioned in relation to the velocity of flow of the mixed fluids through the chamber 2 that the mixed fluids issue from the chamber 2 in the form of a spray 6, which discharges into a gas filled collecting vessel 7, only a part of which is shown.
  • the outlet 5 is cylindrical in form and has an internal diameter approximately equal to half that of the mixing chamber 1.
  • the gas in the vessel 7 may be air, an inert gas, or a reactive gas as the circumstances require. Even though the mixed fluids issuing from the chamber 2 do so as a vortex, any central reverse flow is made up of the gas in the vessel 7 and does not include the mixed fluids issuing from the chamber 2.
  • FIG. 2 shows a cross-section of a second embodiment of the invention including a number of vortex mixers 21 and 22 in series, only two of which are shown.
  • the vortex mixers 21 and 22 each have a mixing chamber 2 with two inlets 3 and 4 and an axial outlet 5.
  • a radial diffuser section 23 which is arranged to break the vortex in the mixed fluid leaving the vortex mixer 21 before supplying it to the inlets 3 and 4 of the vortex mixer 22.
  • fluid pressure is recovered so reducing the pumping forces required.
  • the radial diffuser 23 is shown in more detail in Figure 3. Similar radial diffusers are included between each vortex mixer in the series, and at the outlet from the final vortex mixer.
  • FIG 3 in the arrangement shown in Figure 3(a) the outlet 5 from the mixing chamber 2 has a frusto conical form so as to impart a radial component into the flow of fluid passing along it.
  • Other forms of outlet 5 which are divergent can be used.
  • Figure 3(b) shows a vortex-breaking radial diffuser for use with the embodiment of Figure 1, which consists of a circular baffle plate 31 which is positioned at right angles to the mixed fluid issuing from the outlet 5 from the mixing chamber 2.
  • the baffle plate 31 is held in position by means of struts 32.
  • Figure 3(c) shows another vortex-breaking radial diffuser which consists of a plate 33 which has a large inlet hole 34 which communicates with the outlet 5 from the mixing chamber 2 and a plurality of radially disposed outlets 35.
  • the plate 33 may be integral with the base of the mixing chamber 2 as shown in Figure 3(c).
  • FIG. 3(d) shows in more detail the radial diffuser which is incorporated as item 23 in the embodiment of the invention described with reference to Figure 2.
  • the radial diffuser 23 consists of a cylindrical block 36 in which there is formed an axial cylindrical recess 37.
  • the recess 37 has a diameter equal to the separation between the outer edges of the inlets 3 and 4 to the vortex mixer 22 which follows the vortex mixer 21.
  • the central region of the recess 37 is filled with a boss 38 which has a diameter equal to the separation between the inner edges of the inlets 3 and 4 of the vortex mixer 22.
  • a hole 39 which communicates with the outlet 5 from the vortex mixer 21.
  • boss 38 is convenient to form the boss 38 as part of the mating surface between the vortex mixer 22 and the radial diffuser 23.
  • the boss 38 can be held in position by webs which may be so disposed as to assist in destroying vortex flow in the fluid issuing from the vortex mixer 21.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
EP94306975A 1993-10-05 1994-09-23 Wirbelmischer Withdrawn EP0646407A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939320455A GB9320455D0 (en) 1993-10-05 1993-10-05 Vortex mixer
GB9320455 1993-10-05

Publications (1)

Publication Number Publication Date
EP0646407A1 true EP0646407A1 (de) 1995-04-05

Family

ID=10742990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94306975A Withdrawn EP0646407A1 (de) 1993-10-05 1994-09-23 Wirbelmischer

Country Status (3)

Country Link
EP (1) EP0646407A1 (de)
AU (1) AU7434894A (de)
GB (2) GB9320455D0 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001032125A2 (en) 1999-11-03 2001-05-10 Glaxo Group Limited Apparatus and process for preparing crystalline particles
US7199242B2 (en) 2001-08-02 2007-04-03 Lg Life Sciences Limited Processes for the production of amino-protected derivatives of 4-aminomethylene-pyrrolidin-3-one and/or 4-aminomethylene-pyrrolidin-3-alkoxyimino derivatives and/or gemifloxacin or a salt thereof
USRE40407E1 (en) 1999-05-24 2008-07-01 Vortex Flow, Inc. Method and apparatus for mixing fluids
US8771524B2 (en) 2008-02-08 2014-07-08 Purac Biochem B.V. Vortex mixer and method of obtaining a supersaturated solution or slurry

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210133218A (ko) * 2019-01-31 2021-11-05 모더나티엑스, 인크. 볼텍스 믹서 및 연계된 방법, 시스템 및 이의 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2041620A (en) * 1979-01-19 1980-09-10 Sontek Ind Frequency modulator for a fluid flow system
GB2089668A (en) * 1980-12-22 1982-06-30 Conoco Inc Vortex injection method and apparatus
JPS5867329A (ja) * 1981-10-20 1983-04-21 黒沢　敦 混合器
US4464314A (en) * 1980-01-02 1984-08-07 Surovikin Vitaly F Aerodynamic apparatus for mixing components of a fuel mixture
WO1992016794A1 (en) * 1991-03-20 1992-10-01 Witteveen Gustaaf J Mixing device and method for gaseous, liquid or pulverised solid substances

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761077A (en) * 1987-09-28 1988-08-02 Barrett, Haentjens & Co. Mixing apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2041620A (en) * 1979-01-19 1980-09-10 Sontek Ind Frequency modulator for a fluid flow system
US4464314A (en) * 1980-01-02 1984-08-07 Surovikin Vitaly F Aerodynamic apparatus for mixing components of a fuel mixture
GB2089668A (en) * 1980-12-22 1982-06-30 Conoco Inc Vortex injection method and apparatus
JPS5867329A (ja) * 1981-10-20 1983-04-21 黒沢　敦 混合器
WO1992016794A1 (en) * 1991-03-20 1992-10-01 Witteveen Gustaaf J Mixing device and method for gaseous, liquid or pulverised solid substances

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 155 (C - 175)<1300> 7 July 1983 (1983-07-07) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE40407E1 (en) 1999-05-24 2008-07-01 Vortex Flow, Inc. Method and apparatus for mixing fluids
WO2001032125A2 (en) 1999-11-03 2001-05-10 Glaxo Group Limited Apparatus and process for preparing crystalline particles
US7199242B2 (en) 2001-08-02 2007-04-03 Lg Life Sciences Limited Processes for the production of amino-protected derivatives of 4-aminomethylene-pyrrolidin-3-one and/or 4-aminomethylene-pyrrolidin-3-alkoxyimino derivatives and/or gemifloxacin or a salt thereof
US8771524B2 (en) 2008-02-08 2014-07-08 Purac Biochem B.V. Vortex mixer and method of obtaining a supersaturated solution or slurry

Also Published As

Publication number Publication date
GB9320455D0 (en) 1993-11-24
AU7434894A (en) 1995-04-27
GB9419225D0 (en) 1994-11-09
GB2282546A (en) 1995-04-12

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