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EP0619134A1 - Chambre de mélange - Google Patents

Chambre de mélange Download PDF

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Publication number
EP0619134A1
EP0619134A1 EP94103386A EP94103386A EP0619134A1 EP 0619134 A1 EP0619134 A1 EP 0619134A1 EP 94103386 A EP94103386 A EP 94103386A EP 94103386 A EP94103386 A EP 94103386A EP 0619134 A1 EP0619134 A1 EP 0619134A1
Authority
EP
European Patent Office
Prior art keywords
flow
side surfaces
edge
vortex
roof surface
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
EP94103386A
Other languages
German (de)
English (en)
Other versions
EP0619134B1 (fr
Inventor
Yau-Pin Dr. Chyou
Adnan Eroglu
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.)
ABB AG Germany
Original Assignee
ABB Management AG
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 ABB Management AG filed Critical ABB Management AG
Publication of EP0619134A1 publication Critical patent/EP0619134A1/fr
Application granted granted Critical
Publication of EP0619134B1 publication Critical patent/EP0619134B1/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
    • B01F25/40—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
    • B01F25/4317—Profiled elements, e.g. profiled blades, bars, pillars, columns or chevrons
    • B01F25/43171—Profiled blades, wings, wedges, i.e. plate-like element having one side or part thicker than the other
    • 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
    • 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
    • B01F25/4317—Profiled elements, e.g. profiled blades, bars, pillars, columns or chevrons
    • 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
    • B01F25/4317—Profiled elements, e.g. profiled blades, bars, pillars, columns or chevrons
    • B01F25/43172—Profiles, pillars, chevrons, i.e. long elements having a polygonal cross-section

Definitions

  • the invention relates to a mixing device for mixing two or more substances, which may have the same or different mass flow, the substances to be mixed flowing along a separating plate arranged upstream of the mixing zone, to which flow-influencing means are attached.
  • the invention seeks to remedy this.
  • the invention is therefore based on the object of providing a mixing device of the type mentioned at the outset, with which large-scale longitudinal vortices can be generated, which enable fast, controlled mixing of the flowing substances within a very short distance.
  • the advantage of such a vortex generator can be seen in its particular simplicity in every respect.
  • the element consisting of three walls with flow around it is completely problem-free.
  • the roof surface can be joined with the two side surfaces in a variety of ways.
  • the element can also be fixed to flat or curved channel walls in the case of weldable materials by simple weld seams. From a fluidic point of view, the element has a very low pressure drop when flowing around and it creates vortices without a dead water area.
  • the element can be cooled in a variety of ways and with various means.
  • a vortex generator essentially consists of three freely flowing triangular surfaces. These are a roof surface 10 and two side surfaces 11 and 13. In their longitudinal extent, these surfaces run at certain angles in the direction of flow.
  • the two side surfaces 11 and 13 are each perpendicular to the associated wall 21 of a partition plate 22, it being noted that this is not mandatory.
  • the side walls which consist of right-angled triangles, are with their long sides on this Wall 21 fixed, preferably gas-tight. They are oriented so that they form a joint on their narrow sides, including an arrow angle a.
  • the joint is designed as a sharp connecting edge 16 and is also perpendicular to that wall 21 with which the side surfaces are flush. Installed in a duct, the flow cross-section is hardly affected by blocking because of the sharp connecting edge.
  • the two side surfaces 11, 13 including the arrow angle a are symmetrical in shape, size and orientation and are arranged on both sides of an axis of symmetry 17. This axis of symmetry 17 is rectified like the channel axis.
  • the roof surface 10 lies with a very flat edge 15 running transversely to the flow around the separating plate on the same wall 21 as the side walls 11, 13. Its longitudinal edges 12, 14 are flush with the longitudinal edges of the side surfaces protruding into the flow channel.
  • the roof surface extends at an angle of incidence 0 to the wall 21. Its longitudinal edges 12, 14 form a tip 18 together with the connecting edge 16.
  • the vortex generator can also be provided with a bottom surface with which it is fastened to the wall 21 in a suitable manner.
  • a floor area is not related to the mode of operation of the element.
  • the connecting edge 16 of the two side surfaces 11, 13 forms the downstream edge of the vortex generator 9.
  • the edge 15 of the roof surface 10 which runs transversely to the flow around the separating plate 22 is thus the edge which is first acted upon by the channel flow.
  • the vortex generator works as follows: When flowing around edges 12 and 14, the flow is converted into a pair of opposing vortices. The vortex axes lie in the axis of the flow. The geometry of the vortex generators is chosen so that no backflow zones arise during vortex generation.
  • the swirl number of the vortex is determined by a corresponding choice of the angle of attack 0 and / or the arrow angle a. With increasing angles, the vortex strength or the number of swirls is increased and the location of the vortex breakdown (if desired at all) moves upstream into the area of the vortex generator itself. Depending on the application, these two angles are 0 and a is determined by the design and by the process itself. It is then only necessary to adjust the height h of the connecting edge 16 (FIG. 4).
  • the sharp connecting edge 16 in FIG. 2 is the point which is first acted upon by the channel flow.
  • the element is rotated by 180.
  • the two opposite vortices have changed their sense of rotation. They rotate along the roof surface and strive towards the wall on which the vortex generator is mounted.
  • the shape of the flow around the separating plate 22 is not essential for the mode of operation of the invention.
  • the partition plate 22 could also be a straight or hexagonal or other cross-sectional shape.
  • the partition plate 22 is curved.
  • the above statement that the side surfaces are perpendicular to the wall must of course be relativized.
  • the connecting edge 16 lying on the line of symmetry 17 is perpendicular to the corresponding wall. In the case of annular walls, the connecting edge 16 would thus be aligned radially, as is shown in FIG. 3.
  • FIG. 3 partially shows a cylindrical container with a built-in partition plate 22.
  • the outer wall of the partition plate forms the inner channel wall 21'b of the outer channel, while the inner wall of the partition plate forms the outer channel wall 21 "a of the inner channel.
  • the same channels could flow through the two channels at different speeds; or it could be flowing substances of different densities or chemical compositions that have to be mixed in the shortest possible way to a certain uniformly distributed concentration.
  • an equal number of vortex generators 9 are lined up with gaps in the circumferential direction.
  • the height h of the elements 9 is approximately 90% of the channel height H.
  • the annular elements are, as shown in FIG 4, provided in the same axial plane The flow takes place perpendicularly into the drawing plane in Fig. 3, the elements 9 are oriented such that the connecting edges 16 are directed against the flow The region of the connecting edge is descending, ie strives towards the wall on which the vortex generator is arranged.
  • the eddy currents generated on its two sides are forced into one another, resulting in the desired mixing.
  • a further increase in the mixing quality is achieved if, as shown in FIG. 3, the connecting edges 16 of the vortex generators in the case of the the subchannels are offset by half a division. If swirl-like vortices are used in the subchannels, it can be seen that the vortices rotating around a common radial on both sides of the separating plate combine to form a large vortex with a uniform direction of rotation.
  • the vortex generators in the two partial channels could have different heights compared to the channel height H.
  • the height h match the connecting edge 16 with the channel height H in such a way that the generated vortex immediately downstream of the vortex generator already has such a size that the full channel height H or the full height of the channel part assigned to the vortex generator is filled, which results in a uniform
  • Another criterion that can influence the ratio h / H to be selected is the pressure drop that occurs when the vortex generator flows around. It is understood that with a larger ratio h / H the Pressure loss coefficient increases.
  • FIG. 4 also illustrates how the cross section of the mixing zone d increases steeply downstream of the trailing edge of the partition plate. With this configuration, it can be seen that an intimate mixture is achieved after a short distance.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
EP94103386A 1993-04-08 1994-03-07 Chambre de mélange Expired - Lifetime EP0619134B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH108493 1993-04-08
CH1084/93 1993-04-08

Publications (2)

Publication Number Publication Date
EP0619134A1 true EP0619134A1 (fr) 1994-10-12
EP0619134B1 EP0619134B1 (fr) 1996-12-18

Family

ID=4202086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94103386A Expired - Lifetime EP0619134B1 (fr) 1993-04-08 1994-03-07 Chambre de mélange

Country Status (4)

Country Link
US (1) US5423608A (fr)
EP (1) EP0619134B1 (fr)
JP (1) JP3578355B2 (fr)
DE (1) DE59401295D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510744A1 (de) * 1995-03-24 1996-09-26 Abb Management Ag Brennkammer mit Zweistufenverbrennung
EP0776689A1 (fr) 1995-12-01 1997-06-04 Abb Research Ltd. Dispositif de mélange
US6135629A (en) * 1998-05-11 2000-10-24 Deutsche Babcock Anlagen Gmbh Device for stirring up gas flowing through a duct having a structural insert positioned at an acute angle to a main gas stream
US6189320B1 (en) 1996-12-20 2001-02-20 Siemens Aktiengesellschaft Burner for fluidic fuels having multiple groups of vortex generating elements
WO2009155625A1 (fr) * 2008-06-26 2009-12-30 Gruber & Co Group Gmbh Dispositif de mélange statique et son procédé de fabrication
CN110488853A (zh) * 2019-08-29 2019-11-22 北京航空航天大学 一种降低转轴涡动影响的混合式惯导系统稳定控制指令的计算方法

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59401177D1 (de) * 1993-04-08 1997-01-16 Abb Management Ag Misch- und Flammenstabilisierungseinrichtung in einer Brennkammer mit Vormischverbrennung
CH687832A5 (de) * 1993-04-08 1997-02-28 Asea Brown Boveri Brennstoffzufuehreinrichtung fuer Brennkammer.
EP0623786B1 (fr) * 1993-04-08 1997-05-21 Asea Brown Boveri Ag Chambre de combustion
CA2186253A1 (fr) * 1994-03-25 1995-10-05 Klaus Huttenhofer Systeme combine d'amenee et de melange
US5638682A (en) * 1994-09-23 1997-06-17 General Electric Company Air fuel mixer for gas turbine combustor having slots at downstream end of mixing duct
US5797726A (en) * 1997-01-03 1998-08-25 General Electric Company Turbulator configuration for cooling passages or rotor blade in a gas turbine engine
US5738493A (en) * 1997-01-03 1998-04-14 General Electric Company Turbulator configuration for cooling passages of an airfoil in a gas turbine engine
US6015229A (en) * 1997-09-19 2000-01-18 Calgon Carbon Corporation Method and apparatus for improved mixing in fluids
USRE40407E1 (en) 1999-05-24 2008-07-01 Vortex Flow, Inc. Method and apparatus for mixing fluids
US6637668B2 (en) * 2001-10-24 2003-10-28 Magarl, Llc Thermostatic control valve with fluid mixing
DE10330023A1 (de) * 2002-07-20 2004-02-05 Alstom (Switzerland) Ltd. Wirbelgenerator mit kontrollierter Nachlaufströmung
CN1204945C (zh) * 2003-09-05 2005-06-08 刘兆彦 一种管、筒或塔内构件立交盘
US7300242B2 (en) * 2005-12-02 2007-11-27 Siemens Power Generation, Inc. Turbine airfoil with integral cooling system
US7708453B2 (en) * 2006-03-03 2010-05-04 Cavitech Holdings, Llc Device for creating hydrodynamic cavitation in fluids
US7637720B1 (en) 2006-11-16 2009-12-29 Florida Turbine Technologies, Inc. Turbulator for a turbine airfoil cooling passage
MX2011005391A (es) * 2008-11-26 2011-08-03 Calgon Carbon Corp Metodo y aparato para el uso de elementos de mezclado en un sistema de desinfeccion uv de aguas residuales/aguas recicladas.
EP2496882B1 (fr) 2009-11-07 2018-03-28 Ansaldo Energia Switzerland AG Système d'injection pour brûleur de réchauffage avec lances à combustible
WO2011054739A2 (fr) 2009-11-07 2011-05-12 Alstom Technology Ltd Système d'injection pour brûleur de réchauffage
WO2011054771A2 (fr) 2009-11-07 2011-05-12 Alstom Technology Ltd Brûleur à prémélange pour chambre de combustion de turbine à gaz
WO2011054760A1 (fr) 2009-11-07 2011-05-12 Alstom Technology Ltd Système de refroidissement permettant d'accroître le rendement d'une turbine à gaz
WO2011054766A2 (fr) 2009-11-07 2011-05-12 Alstom Technology Ltd Système d'injection de brûleur de postcombustion
RU2455056C2 (ru) * 2010-06-07 2012-07-10 Открытое акционерное общество "Научно-производственная корпорация "Иркут" (ОАО "Корпорация "Иркут") Способ диспергирования жидкости и устройство для его осуществления
DE102012008732A1 (de) * 2012-05-04 2013-11-07 Xylem Water Solutions Herford GmbH Mischvorrichtung für UV-Wasserbehandlungsanlagen mit offenem Kanal
EP2725302A1 (fr) 2012-10-25 2014-04-30 Alstom Technology Ltd Agencement de brûleur de postcombustion
US20140123653A1 (en) * 2012-11-08 2014-05-08 General Electric Company Enhancement for fuel injector
WO2014114533A1 (fr) * 2013-01-24 2014-07-31 Siemens Aktiengesellschaft Système de brûleur possédant des éléments de turbulence
RU193887U1 (ru) * 2019-05-17 2019-11-19 Публичное акционерное общество "Научно-производственная корпорация "Иркут" (ПАО "Корпорация "Иркут") Устройство для аэрации жидкости
US11898755B2 (en) 2022-06-08 2024-02-13 General Electric Company Combustor with a variable volume primary zone combustion chamber

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FR2404458A1 (fr) * 1977-09-28 1979-04-27 Mahler Arnold Dispositif d'homogeneisation d'un courant fluidique charge de particules
DE3520772A1 (de) * 1985-06-10 1986-12-11 INTERATOM GmbH, 5060 Bergisch Gladbach Mischvorrichtung
DE8700259U1 (de) * 1986-01-31 1987-03-19 Gebrüder Sulzer AG, Winterthur Vorrichtung für eine Extraktionskolonne oder eine Mischeinrichtung
JPS63294494A (ja) * 1987-05-27 1988-12-01 Nippon Denso Co Ltd 熱交換器
WO1990000929A1 (fr) * 1988-07-27 1990-02-08 Vortab Corporation Appareil statique de melange de courants de fluides
WO1992011642A2 (fr) * 1990-12-21 1992-07-09 Siemens Aktiengesellschaft Dispositif de confinement d'une installation pour reacteurs nucleaires et procede de refroidissement de secours en cas de fusion du c×ur

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US1022493A (en) * 1910-08-31 1912-04-09 Curtis C Meigs Apparatus for making sulfuric acid.
US1454196A (en) * 1921-07-16 1923-05-08 Trood Samuel Device for producing and utilizing combustible mixture
US1466006A (en) * 1922-09-14 1923-08-28 Trood Samuel Apparatus for producing and utilizing combustible mixture
US3051452A (en) * 1957-11-29 1962-08-28 American Enka Corp Process and apparatus for mixing
US3404869A (en) * 1966-07-18 1968-10-08 Dow Chemical Co Interfacial surface generator
US4164375A (en) * 1976-05-21 1979-08-14 E. T. Oakes Limited In-line mixer
CA1129303A (fr) * 1978-07-19 1982-08-10 Figgie International Inc. Respirateur a pression et a demande avec vanne automatique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404458A1 (fr) * 1977-09-28 1979-04-27 Mahler Arnold Dispositif d'homogeneisation d'un courant fluidique charge de particules
DE3520772A1 (de) * 1985-06-10 1986-12-11 INTERATOM GmbH, 5060 Bergisch Gladbach Mischvorrichtung
DE8700259U1 (de) * 1986-01-31 1987-03-19 Gebrüder Sulzer AG, Winterthur Vorrichtung für eine Extraktionskolonne oder eine Mischeinrichtung
JPS63294494A (ja) * 1987-05-27 1988-12-01 Nippon Denso Co Ltd 熱交換器
WO1990000929A1 (fr) * 1988-07-27 1990-02-08 Vortab Corporation Appareil statique de melange de courants de fluides
WO1992011642A2 (fr) * 1990-12-21 1992-07-09 Siemens Aktiengesellschaft Dispositif de confinement d'une installation pour reacteurs nucleaires et procede de refroidissement de secours en cas de fusion du c×ur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 118 (M - 806) 23 March 1989 (1989-03-23) *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510744A1 (de) * 1995-03-24 1996-09-26 Abb Management Ag Brennkammer mit Zweistufenverbrennung
US5829967A (en) * 1995-03-24 1998-11-03 Asea Brown Boveri Ag Combustion chamber with two-stage combustion
EP0776689A1 (fr) 1995-12-01 1997-06-04 Abb Research Ltd. Dispositif de mélange
US5803602A (en) * 1995-12-01 1998-09-08 Abb Research Ltd. Fluid mixing device with vortex generators
US6189320B1 (en) 1996-12-20 2001-02-20 Siemens Aktiengesellschaft Burner for fluidic fuels having multiple groups of vortex generating elements
US6135629A (en) * 1998-05-11 2000-10-24 Deutsche Babcock Anlagen Gmbh Device for stirring up gas flowing through a duct having a structural insert positioned at an acute angle to a main gas stream
WO2009155625A1 (fr) * 2008-06-26 2009-12-30 Gruber & Co Group Gmbh Dispositif de mélange statique et son procédé de fabrication
CN101932377A (zh) * 2008-06-26 2010-12-29 格鲁伯集团公司 静态混合装置和制造方法
RU2464075C2 (ru) * 2008-06-26 2012-10-20 Грубер Унд Ко Гроуп Гмбх Статическое смесительное устройство и способ его изготовления
CN110488853A (zh) * 2019-08-29 2019-11-22 北京航空航天大学 一种降低转轴涡动影响的混合式惯导系统稳定控制指令的计算方法
CN110488853B (zh) * 2019-08-29 2021-06-08 北京航空航天大学 一种降低转轴涡动影响的混合式惯导系统稳定控制指令的计算方法

Also Published As

Publication number Publication date
DE59401295D1 (de) 1997-01-30
JPH07784A (ja) 1995-01-06
EP0619134B1 (fr) 1996-12-18
US5423608A (en) 1995-06-13
JP3578355B2 (ja) 2004-10-20

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