EP0967004A1 - Mélangeur statique - Google Patents

Mélangeur statique Download PDF

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Publication number
EP0967004A1
EP0967004A1 EP99111307A EP99111307A EP0967004A1 EP 0967004 A1 EP0967004 A1 EP 0967004A1 EP 99111307 A EP99111307 A EP 99111307A EP 99111307 A EP99111307 A EP 99111307A EP 0967004 A1 EP0967004 A1 EP 0967004A1
Authority
EP
European Patent Office
Prior art keywords
webs
layers
mixer
mix
inlet
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Withdrawn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
EP99111307A
Other languages
German (de)
English (en)
Inventor
Heinrich Schuchardt
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of EP0967004A1 publication Critical patent/EP0967004A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0058—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for only one medium being tubes having different orientations to each other or crossing the conduit for the other heat exchange medium
    • 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
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F35/93—Heating or cooling systems arranged inside the receptacle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
    • F28F1/045—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular with assemblies of stacked elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0052—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for mixers

Definitions

  • the invention relates to a static mixing device for mixing viscous Fluids consisting of an inner housing with a mix inlet and a mix outlet is constructed, the two or more layers of mutually parallel wide or zigzag-shaped webs, which preferably at an angle ⁇ from 90 ° to each other are alternately arranged one above the other, and at their upper and lower vertices are connected.
  • the webs for the passage of a heat transfer fluid with channels, so that the mixer can also serve as a heat exchanger.
  • static mixers are often used as internals in Pipelines used.
  • a pump pushes the liquids to be mixed a pipe provided with such internals.
  • Kenics mixers cf. Mixing in the manufacture and processing of plastics ", publisher: VDI-Ges. Kunststofftechnik, VDI-Verlag Düsseldorf, 1986, pp. 238-241
  • the fluid flow is divided by a partition plate installed in the pipe. This is twisted around the pipe axis.
  • the partial flows of the liquid form a vortex-shaped flow, which leads to the redistribution of the liquid in cross-section.
  • several such mixing elements are arranged one behind the other in order to divide the liquid again and again and achieve a good mixing effect is comparatively small.
  • SMX mixers consist of two to one another vertical grids of parallel sheet metal strips, which at their crossing points are welded together.
  • the manufacturing cost of this mixer is because of the many welded connections relatively high.
  • Heat exchangers typically take place at a very low Reynolds number. If, for example, smooth pipes are used for heat exchange, one is against Zero Reynolds number the heat exchange rate low and on the part of the heat exchanger essentially only depends on the pipe length used. A a significant improvement in heat exchange is then possible through a Combination of the tube heat exchanger with a static mixing device.
  • the object of the invention is to find a static mixer that has a good the known static mixer shows comparable mixing effect, which may is coolable or heatable and which can be produced in a simple manner and therefore inexpensively is.
  • a static mixing device for mixing viscous fluids, built up at least from an inner housing with a mix inlet and a mix outlet that are two or more Encloses layers of parallel, wavy or zigzag-shaped webs, alternating at an angle ⁇ , preferably rotated from each other by 90 ° are arranged one above the other, and at their upper and lower vertices are connected to one another, and optionally an outer casing.
  • the webs are static Mixer connected by joints so that from each joint except four web elements that span a tetrahedron the joints that are on the edge of the static mixer.
  • the structure of the web insert is reminiscent of the topology of a Diamond grid. As a web insert, the entirety of the interconnected Layers of bars of the mixer understood.
  • the webs are selected Layers or all layers for the passage of a heat transfer fluid Channels.
  • the webs are e.g. executed hollow and the cavities serve then as channels for the heat transfer medium.
  • the webs are in the direction of flow of the product so wide that the heat transfer channels mentioned each along a straight line from one side of the mixer to the opposite Are guided through the webs.
  • a variant of the static mixing device that is particularly easy to produce is characterized in that the device is stacked in two or more is divided into separate segments, each containing two, three or more Layers, in particular three layers of webs are joined together.
  • the segments can be made individually by casting and then in any number and Combination can be joined together, if necessary also with different Geometry of individual segments.
  • the webs overlap directly one above the other Layers of webs at their junctions, especially through interlocking recesses at the apex of the webs.
  • Another preferred variant of the mixing device is characterized in that that the parallel webs a layer of webs to the center distance adjacent Bars of the next but one layer of bars located above or below are laterally offset.
  • the mixer is constructed in such a way that the lattice planes that form the connection points the webs form a ply so that none form an angle of 90 ° with the main flow direction through the mixer.
  • the flow into non-mixing flow cells (Partial flows) decays.
  • the mixer can be easily manufactured by master molding. Hereby the desired low manufacturing effort is achievable, reducing the cost of the mixer can be kept low.
  • the web insert of the Mixer made of wax can first be injection molded as a model. The wax model then serves as a lost model in the investment casting, e.g. from the wax model a ceramic hollow mold is produced. The one cast from metal in the hollow form The web insert can then simply be inserted into a housing and fastened.
  • the above mixer variant consisting of segments is even easier to do manufacture, since the inner housing is created together with the webs during investment casting.
  • the channels can still go into the housing wall be welded in. This can be done in the manufacture of shell and tube heat exchangers usually used welding machines become.
  • FIG side view An embodiment of the static mixer according to the invention is shown in FIG side view.
  • the mixer insert and the inner housing of the mixer are one outer housing (casing 1) surround and has an inlet 7 and one Outlet 8 for the mix
  • the mixer is also equipped with feed lines 9 and 11 for a heat carrier oil Leads 10 and 12 provided for the heat transfer oil.
  • 1b is the top view drawn on the mix inlet 7 through which the internals of the mixer can be seen are.
  • FIG. 3a To illustrate the structure of the mixer in Fig. 3a is a front view of the Mixer shown with omission of the inner housing 2 and casing 1.
  • the webs 3, 13 and 4, 14 are kept so wide in the flow direction that straight Cooling channels 6, 16 can pass through them.
  • 3b shows a schematic plan view of the web insert of the mixer according to FIG. 1a without housing 2 and casing 1 from the side of the mixture inlet 7. From this the sequence of the first four layers of webs becomes clear.
  • the top one Layer is formed by webs 3, the second layer by webs 4, the third layer through the webs 13 followed by the fourth position of the webs 14.
  • the mix flow is divided at the edges 19 and led to the valleys 20 of the webs. Deeper Layers of webs point to valleys 20 'at which the mix flows out laterally.
  • FIG Bridge 3c shows the sequence of the interconnected layers of FIG Bridges.
  • the zigzag webs 3, 13 and 4, 14 their edges, which face another layer, recesses 21, 22 (see Fig. 9) so that they engage in directly adjacent webs so that a nested composite of webs is formed, which is rigid.
  • FIG. 4 A segment 41 of a static mixer is shown in FIG. 4, which has three layers of webs 43, 44 and 47.
  • the webs 43 of a layer are arranged parallel to one another.
  • the one below the other lying rows of webs 43 and 44 are each arranged perpendicular to each other. All webs 43, 44, 47 are crossed by straight channels 45, 46, 48, through which a heat transfer fluid can flow and in the wall of an inner housing 42 flow out.
  • Several of the segments 41 may optionally not be shown Seals joined together give a pack that fits into one (not shown) coat to be fitted.
  • the segment is easy using metal casting to manufacture.
  • FIG. 3a a variant of the web insert according to FIG. 3a is shown can be manufactured using casting technology and as an insert in an inner housing 2 serves according to FIG. 2.
  • the edges of adjacent webs 53, 54 or 54, 55 meet with straight surfaces on top of each other, but have no nested recesses on
  • the heat transfer channels 56 are straight and are by means of Do not produce slides for the archetype.
  • the gaps 58 can be between the webs 57, 55 by means of slides in the manufacture of the preform produce.
  • the zigzag webs 53 and 54 are at the connection points 17 and 18 each connected to the webs 54, 55 of the underlying layer of webs.
  • the individual segments of the webs 53 and 54 or 54 and 55 tense a connecting point 17 or 18 each have a tetrahedron.
  • Flow cells may still occur in the mixer according to Example 1, that are not mixed. To avoid this, the symmetry in Broken with respect to the flow direction. This is possible in which the Lattice planes are sheared with respect to the direction of flow. The order 6 shows that this is due to uneven lateral offset the next but one Layers of webs 63, 65 and 64, 67 is possible.
  • Another way to break symmetry is to shift the lattice planes perpendicular to the direction of flow.
  • a web insert is shown in which the webs 73 a layer of webs so are arranged so that their vertices form a plane which is at an angle of about 85 ° to the main flow direction.
  • each individual web 73, 74, 75, 77 are each around seen about 5 ° rising from the heat transfer inlet side (left or rear in Fig. 7) arranged. This will also make training more preferred To prevent flow cells.
  • FIGS. 8a to 8c show a variant of the web insert with FIGS. 5a to c, whose webs (83, 84, 85, 86) have no heating channels.
  • the top layer of bars (83) and the bottom layer of bars (87) are partial interrupted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Dispersion Chemistry (AREA)
EP99111307A 1998-06-23 1999-06-10 Mélangeur statique Withdrawn EP0967004A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19827851 1998-06-23
DE19827851A DE19827851A1 (de) 1998-06-23 1998-06-23 Statische Mischvorrichtung

Publications (1)

Publication Number Publication Date
EP0967004A1 true EP0967004A1 (fr) 1999-12-29

Family

ID=7871696

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99111307A Withdrawn EP0967004A1 (fr) 1998-06-23 1999-06-10 Mélangeur statique

Country Status (5)

Country Link
US (1) US6217208B1 (fr)
EP (1) EP0967004A1 (fr)
JP (1) JP2000037618A (fr)
CA (1) CA2275376A1 (fr)
DE (1) DE19827851A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000078440A1 (fr) * 1999-06-21 2000-12-28 Koch-Glitsch, Inc. Elements empiles de melangeur statique
US8794820B2 (en) 2007-03-09 2014-08-05 Sulzer Chemtech Ag Apparatus for the heat-exchanging and mixing treatment of fluid media
EP2851118A1 (fr) 2013-09-20 2015-03-25 Promix Solutions AG Dispositif de mélange et d'échange thermique et procédé pour sa fabrication
EP3489603A1 (fr) 2017-11-28 2019-05-29 Promix Solutions AG Echangeur de chaleur
EP3100843B1 (fr) * 2015-06-01 2019-07-24 Promix Solutions AG Procédé pour la production des produits extrudés annulaires
DE102019009099A1 (de) * 2019-12-31 2021-07-01 Heinz Gross Wärmetauscher mit Mischfunktion

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6008202A (en) 1995-01-23 1999-12-28 University Of Pittsburgh Stable lipid-comprising drug delivery complexes and methods for their production
CA2322333C (fr) * 1999-11-10 2005-04-26 Sulzer Chemtech Ag Melangeur statique avec elements coules de precision
DE10005457A1 (de) * 2000-02-08 2001-08-09 Bayer Ag Statischer Mischer
EP1392419B1 (fr) * 2001-05-17 2011-11-23 Amalgamated Research, Inc. Structure fractale pour melanger au moins deux fluides
AP1615A (en) * 2002-03-08 2006-05-23 Gonzalez Salazar Joseluis Machine and process for recycling inorganic and organic trash and obtention of a moulding paste for different usages.
JP4992201B2 (ja) * 2005-06-07 2012-08-08 富士ゼロックス株式会社 マイクロ流体制御方法、マイクロ流体素子およびその製造方法
EP2620208B1 (fr) * 2012-01-25 2017-01-04 General Electric Technology GmbH Agencement de mélange de gaz
EP2629039A1 (fr) * 2012-02-17 2013-08-21 Armacell Enterprise GmbH Échangeur de chaleur à flux expansible pour fontes de polymères
US9162206B2 (en) 2013-12-05 2015-10-20 Exxonmobil Research And Engineering Company Reactor bed component for securing rigid assemblies
US9572555B1 (en) * 2015-09-24 2017-02-21 Ethicon, Inc. Spray or drip tips having multiple outlet channels
US9839883B2 (en) * 2016-03-18 2017-12-12 Komax Systems, Inc. Channel mixing apparatus
KR102066492B1 (ko) * 2019-03-18 2020-01-15 우태원 고점성 매체용 스태틱 혼합 장치
CN110773057B (zh) * 2019-11-13 2022-02-01 湘潭大学 一种模块式混合机结构
US11624455B2 (en) * 2020-11-13 2023-04-11 Fisher Controls International Llc Valve trim

Citations (6)

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Publication number Priority date Publication date Assignee Title
DE1601205A1 (de) * 1967-10-13 1970-08-06 Ind Companie Kleinewefers Gmbh Waermeaustauscher mit kreuzgitterfoermig angeordneten Rohren
DE2839564A1 (de) * 1978-09-12 1980-03-20 Hoechst Ag Vorrichtung zur waermetauschenden und mischenden behandlung von stroemenden medien
US4296779A (en) * 1979-10-09 1981-10-27 Smick Ronald H Turbulator with ganged strips
EP0412177A1 (fr) * 1988-05-02 1991-02-13 Kama Corporation Mélangeur statique
US5171544A (en) * 1988-02-02 1992-12-15 Lang John S Method of mixing fluids in packing media for reactors
DE4428813A1 (de) * 1994-08-13 1996-02-15 Ewald Schwing Verfahrenstechni Vorrichtung zum statischen Mischen von Fluiden, insbesondere von thermoplastifiziertem Kunststoff, und Verfahren zur Herstellung einer solchen Vorrichtung

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US3406947A (en) * 1966-08-19 1968-10-22 Dow Chemical Co Interfacial surface generator
US3620506A (en) * 1970-07-07 1971-11-16 Fmc Corp Fluid-mixing device
US4062524A (en) 1973-06-06 1977-12-13 Bayer Aktiengesellschaft Apparatus for the static mixing of fluid streams
US4040256A (en) * 1976-07-14 1977-08-09 The Dow Chemical Company Flume mixer
USRE34255E (en) * 1988-05-02 1993-05-18 Krup Corporation Static mixing device
EP0655275B1 (fr) * 1993-11-26 1999-10-06 Sulzer Chemtech AG Dispositif de mélange statique
US5964528A (en) * 1995-02-03 1999-10-12 Sulzer Chemtech Ag Method of operating a mass exchange column, a heat exchange column or a static mixer using a packing composed of flat structural elements
DE59605822D1 (de) * 1996-07-05 2000-10-05 Sulzer Chemtech Ag Winterthur Statischer Mischer
US5971603A (en) * 1998-03-06 1999-10-26 The Madison Group: Polymer Processing Research Corp. Static mixer head

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1601205A1 (de) * 1967-10-13 1970-08-06 Ind Companie Kleinewefers Gmbh Waermeaustauscher mit kreuzgitterfoermig angeordneten Rohren
DE2839564A1 (de) * 1978-09-12 1980-03-20 Hoechst Ag Vorrichtung zur waermetauschenden und mischenden behandlung von stroemenden medien
US4296779A (en) * 1979-10-09 1981-10-27 Smick Ronald H Turbulator with ganged strips
US5171544A (en) * 1988-02-02 1992-12-15 Lang John S Method of mixing fluids in packing media for reactors
EP0412177A1 (fr) * 1988-05-02 1991-02-13 Kama Corporation Mélangeur statique
DE4428813A1 (de) * 1994-08-13 1996-02-15 Ewald Schwing Verfahrenstechni Vorrichtung zum statischen Mischen von Fluiden, insbesondere von thermoplastifiziertem Kunststoff, und Verfahren zur Herstellung einer solchen Vorrichtung

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000078440A1 (fr) * 1999-06-21 2000-12-28 Koch-Glitsch, Inc. Elements empiles de melangeur statique
US6394644B1 (en) 1999-06-21 2002-05-28 Koch-Glitsch, Inc. Stacked static mixing elements
KR100691078B1 (ko) * 1999-06-21 2007-03-09 술저 켐테크 악티엔게젤샤프트 적층되는 정적혼합용 부재
US8794820B2 (en) 2007-03-09 2014-08-05 Sulzer Chemtech Ag Apparatus for the heat-exchanging and mixing treatment of fluid media
EP2851118A1 (fr) 2013-09-20 2015-03-25 Promix Solutions AG Dispositif de mélange et d'échange thermique et procédé pour sa fabrication
EP3100843B1 (fr) * 2015-06-01 2019-07-24 Promix Solutions AG Procédé pour la production des produits extrudés annulaires
EP3489603A1 (fr) 2017-11-28 2019-05-29 Promix Solutions AG Echangeur de chaleur
US11085710B2 (en) 2017-11-28 2021-08-10 Promix Solutions Ag Heat exchanger
DE102019009099A1 (de) * 2019-12-31 2021-07-01 Heinz Gross Wärmetauscher mit Mischfunktion

Also Published As

Publication number Publication date
US6217208B1 (en) 2001-04-17
CA2275376A1 (fr) 1999-12-23
JP2000037618A (ja) 2000-02-08
DE19827851A1 (de) 1999-12-30

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