EP0546989B1 - Elément de mélange statique avec surfaces de guidage - Google Patents

Elément de mélange statique avec surfaces de guidage Download PDF

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Publication number
EP0546989B1
EP0546989B1 EP92810882A EP92810882A EP0546989B1 EP 0546989 B1 EP0546989 B1 EP 0546989B1 EP 92810882 A EP92810882 A EP 92810882A EP 92810882 A EP92810882 A EP 92810882A EP 0546989 B1 EP0546989 B1 EP 0546989B1
Authority
EP
European Patent Office
Prior art keywords
baffles
mixing element
accordance
channel
guide surfaces
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
EP92810882A
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German (de)
English (en)
Other versions
EP0546989A1 (fr
Inventor
Willy Dr. Tauscher
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.)
Sulzer Chemtech AG
Original Assignee
Sulzer Chemtech AG
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Filing date
Publication date
Application filed by Sulzer Chemtech AG filed Critical Sulzer Chemtech AG
Publication of EP0546989A1 publication Critical patent/EP0546989A1/fr
Application granted granted Critical
Publication of EP0546989B1 publication Critical patent/EP0546989B1/fr
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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
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
    • B01F25/431971—Mounted on the wall
    • 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
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod

Definitions

  • the invention relates to a static mixing element according to the preamble of claim 1.
  • static mixing elements are known from international application WO 90/00929.
  • Simple static mixing elements with baffles are known, but they still have a very limited mixing and homogenizing effect and still cause a relatively high pressure drop.
  • More complex static mixers e.g. Consisting of intersecting subchannels of fins (Sulzer SMV mixer), they have very good mixing properties, but are often still relatively expensive to manufacture.
  • the dependent claims relate to advantageous developments of the invention.
  • intersecting partial streams are generated in the radial direction with a particularly good mixing effect in the simplest possible way.
  • the projection FZ of the guide surfaces in the main flow direction can only be 5% to 30% of the channel cross section and thus achieve optimal mixing even with little effort and pressure drop.
  • the guiding surfaces can be trapezoidal or rounded, they can be offset from one another and can be distributed substantially uniformly over the entire channel cross section. Adjacent or successive guide surfaces can be offset from one another, or can also be arranged rotated with respect to the main flow direction Z and the normal N to the channel wall.
  • FIG. 1 shows a mixing element according to the invention with two guide surfaces 10 fixed to the wall of a flow channel 7 in a cross-sectional surface 21 in two views.
  • the trapezoidal guide surfaces 10 widen towards the interior of the channel.
  • the width A on the channel wall 7 is smaller than the width B in the interior of the channel. This allows better flow around the back of the guide surfaces 11 in the direction of the arrows 9.
  • the guide surfaces 10 are offset from one another and by an angle W of e.g. 30 ° inclined to the main flow direction Z of the fluid 2 with opposite orientations.
  • the guide surfaces produce corresponding flow cones deflected in the directions 5, 6, which result in intensive mixing. Cross currents generated by offset guiding surfaces are particularly effective.
  • the projection FZ of the guide surfaces in the flow direction Z is less than 30% of the cross-sectional area F of the flow channel (FIG. 1b).
  • FC cross-sectional area
  • FC e.g. 10% to 20% of F
  • two further wall guide surfaces 10 are arranged, these being offset against the guide surfaces of the first cross section 21. This results in a further intensive mixing of the partial flows of the individual guide surfaces 10.
  • Also known guide surfaces that become narrower towards the inside could also be arranged offset. As explained, however, this would result in poor flow around the rear.
  • FIGS. 2a to c show guide surfaces 10 with different possible shapes. These can be trapezoidal 12, rounded 13 or combined 14, for example his.
  • the guide surfaces can also have different shapes or sizes.
  • the guide surfaces could also be split, kinked, bent or twisted. Particularly for high speeds and high loads, the guide surfaces can also have reinforcements and stiffeners, for example in the form of a rib 18 in FIG. 2a.
  • Opposing guide surfaces can also be connected to form truss-like structures, as shown, for example, with the struts 19 in FIG. 3.
  • an example is shown with a plurality of guide surfaces 10, which are evenly distributed over the entire channel cross section F with (in the figure) alternating upward and downward partial streams 5, 6 and cross currents thus generated.
  • FIG. 4 shows a further example with twisted guide surfaces 10 in a round flow channel 7. These twisted guide surfaces also produce intersecting partial flows, for example in directions 5, 6, which do not run radially. A slight twisting of the guide surfaces 10 again significantly improves the flow around the rear 11.
  • FIG. 5 shows a mixing element with guide surfaces in two cross-sectional planes 21, 22.
  • the guide surfaces of plane 22 are offset from those of first plane 21.
  • the guiding surfaces create radial partial flows, which also mix intensively.
  • a larger distance can also be provided between two levels, which acts as a post-mixing section.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)

Claims (9)

  1. Elément mélangeur statique situé dans un canal de circulation (7) et comprenant au moins deux surfaces de guidage, ces surfaces de guidage (10) étant montées sur la cloison (7) du canal et inscrivant un angle W de 10° à 45° avec la direction principale de circulation Z, caractérisé en ce que les surfaces de guidage sont plus larges (B) à l'intérieur du canal que sur la cloison du canal (A).
  2. Elément mélangeur statique selon la revendication 1, caractérisé en ce que les surfaces voisines de guidage qui présentent des orientations différentes (5, 6) sont sensiblement disposées de manière à se croiser.
  3. Elément mélangeur statique selon l'une des revendications précédentes, caractérisé en ce que la projection FZ des surfaces de guidage sur la direction principale de circulation correspond à 5% à 30% de la section transversale F du canal.
  4. Elément mélangeur selon l'une des revendications précédentes, caractérisé en ce que les surfaces de guidage (10) qui sont voisines latéralement ou qui se succèdent sont décalées les unes par rapport aux autres.
  5. Elément mélangeur selon l'une des revendications précédentes, caractérisé en ce que les surfaces de guidage (10) sont trapézoïdales ou arrondies.
  6. Elément mélangeur selon l'une des revendications précédentes, caractérisé en ce que les surfaces de guidage qui se font face sont reliées à leur extrémité intérieure libre par un élément d'appui (19).
  7. Elément mélangeur selon l'une des revendications précédentes, caractérisé en ce que les surfaces de guidage (10) sont disposées de manière à être réparties de façon sensiblement régulière dans une surface transversale F du canal.
  8. Elément mélangeur selon l'une des revendications précédentes, caractérisé en ce que les surfaces de guidage sont disposées dans au moins deux plans transversaux successifs (21, 22).
  9. Elément mélangeur selon l'une des revendications précédentes, caractérisé en ce que les surfaces de guidage sont disposées obliquement (V) par rapport à la direction principale de circulation Z et aux perpendiculaires N, à la cloison du canal (7).
EP92810882A 1991-12-10 1992-11-13 Elément de mélange statique avec surfaces de guidage Expired - Lifetime EP0546989B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH363291 1991-12-10
CH3632/91 1991-12-10

Publications (2)

Publication Number Publication Date
EP0546989A1 EP0546989A1 (fr) 1993-06-16
EP0546989B1 true EP0546989B1 (fr) 1995-11-15

Family

ID=4260154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810882A Expired - Lifetime EP0546989B1 (fr) 1991-12-10 1992-11-13 Elément de mélange statique avec surfaces de guidage

Country Status (3)

Country Link
US (1) US5330267A (fr)
EP (1) EP0546989B1 (fr)
DE (1) DE59204349D1 (fr)

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ATE189620T1 (de) * 1995-05-09 2000-02-15 Labatt Brewing Co Ltd Statische vorrichtung zur strömungsdurchmischung von fluiden
US5696380A (en) * 1995-05-09 1997-12-09 Labatt Brewing Company Limited Flow-through photo-chemical reactor
US5839828A (en) * 1996-05-20 1998-11-24 Glanville; Robert W. Static mixer
JP3031855U (ja) * 1996-05-30 1996-12-03 光正 古矢 顆粒状薬剤の混合装置
US6015229A (en) * 1997-09-19 2000-01-18 Calgon Carbon Corporation Method and apparatus for improved mixing in fluids
EP0918146A1 (fr) 1997-11-19 1999-05-26 Sulzer Chemtech AG Dispositif pour la décomposition de polluants de gaz d'échappement au moyen de catalyseurs
DE19820992C2 (de) * 1998-05-11 2003-01-09 Bbp Environment Gmbh Vorrichtung zur Durchmischung eines einen Kanal durchströmenden Gasstromes und Verfahren unter Verwendung der Vorrichtung
DE60021263T2 (de) 1999-04-19 2006-04-27 Sulzer Chemtech Ag Statischer wirbelmischer und methode zur verwendung desselben
JP2005500350A (ja) 2001-08-02 2005-01-06 エルジー ライフサイエンス リミテッド ４−アミノメチレン−ピロリジン−３−オンおよび／または４−アミノメチレン−ピロリジン−３−アルコキシイミノ誘導体のアミノ保護誘導体、および／またはジェミフロキサシンまたはその塩の製造方法
DE50209465D1 (de) * 2001-10-16 2007-03-29 Sulzer Chemtech Ag Rohrstück mit einer Einspeisestelle für ein Additiv
US6637668B2 (en) * 2001-10-24 2003-10-28 Magarl, Llc Thermostatic control valve with fluid mixing
US7264394B1 (en) 2002-06-10 2007-09-04 Inflowsion L.L.C. Static device and method of making
US7041218B1 (en) 2002-06-10 2006-05-09 Inflowsion, L.L.C. Static device and method of making
US7045060B1 (en) 2002-12-05 2006-05-16 Inflowsion, L.L.C. Apparatus and method for treating a liquid
US7350963B2 (en) * 2005-02-04 2008-04-01 Hamilton Beach Brands, Inc. Blender jar
GB201100673D0 (en) 2011-01-15 2011-03-02 Statiflo Internat Ltd Static mixer assembly
US9347355B2 (en) * 2011-09-08 2016-05-24 Tenneco Automotive Operating Company Inc. In-line flow diverter
JP5995188B2 (ja) * 2012-05-08 2016-09-21 Ｊｆｅエンジニアリング株式会社 静止型混合装置及びこれを有するバラスト水処理装置
US9221022B2 (en) * 2013-04-03 2015-12-29 Westfall Manufacturing Company Static mixer
US20140301157A1 (en) * 2013-04-03 2014-10-09 Westfall Manufacturing Company Static Mixer
US9067183B2 (en) 2013-04-03 2015-06-30 Westfall Manufacturing Company Static mixer
JP2017514679A (ja) * 2014-05-09 2017-06-08 ダウ グローバル テクノロジーズ エルエルシー スタティックミキサー
KR102033937B1 (ko) * 2017-05-16 2019-10-18 엘지전자 주식회사 유동교란 장치 및 이를 포함하는 공기 조화기
US10737227B2 (en) 2018-09-25 2020-08-11 Westfall Manufacturing Company Static mixer with curved fins
US11285448B1 (en) * 2021-04-12 2022-03-29 William J. Lund Static mixer inserts and static mixers incorporating same

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Publication number Priority date Publication date Assignee Title
FR606324A (fr) * 1925-09-15 1926-06-11 Dispositifs mélangeurs
US2216846A (en) * 1939-01-09 1940-10-08 Evan L Lewis Fuel mixing device
US3190618A (en) * 1963-04-30 1965-06-22 Katzen Raphael Fluid mixer
FR1591003A (fr) * 1967-11-09 1970-04-20
US4164375A (en) * 1976-05-21 1979-08-14 E. T. Oakes Limited In-line mixer
SU919724A1 (ru) * 1980-08-20 1982-04-15 Центральное Конструкторское Бюро Главэнергоремонта Министерства Энергетики И Электрификации Ссср Устройство дл перемешивани сыпучих материалов
DE3043239C2 (de) * 1980-11-15 1985-11-28 Balcke-Dürr AG, 4030 Ratingen Verfahren und Vorrichtung zum Vermischen mindestens zweier fluider Teilströme
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US4929088A (en) * 1988-07-27 1990-05-29 Vortab Corporation Static fluid flow mixing apparatus
US4981368A (en) * 1988-07-27 1991-01-01 Vortab Corporation Static fluid flow mixing method

Also Published As

Publication number Publication date
EP0546989A1 (fr) 1993-06-16
US5330267A (en) 1994-07-19
DE59204349D1 (de) 1995-12-21

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