EP0800857B1 - Tuyau mélangeur pour fluides à faible viscosité - Google Patents

Tuyau mélangeur pour fluides à faible viscosité Download PDF

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Publication number
EP0800857B1
EP0800857B1 EP96810224A EP96810224A EP0800857B1 EP 0800857 B1 EP0800857 B1 EP 0800857B1 EP 96810224 A EP96810224 A EP 96810224A EP 96810224 A EP96810224 A EP 96810224A EP 0800857 B1 EP0800857 B1 EP 0800857B1
Authority
EP
European Patent Office
Prior art keywords
tube
accordance
mixer
constriction
mixing
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
EP96810224A
Other languages
German (de)
English (en)
Other versions
EP0800857A1 (fr
Inventor
Markus Fleischli
Gottlieb Schneider
Marc Bruno Dr. Wehrli
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
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 Sulzer Chemtech AG filed Critical Sulzer Chemtech AG
Priority to EP96810224A priority Critical patent/EP0800857B1/fr
Priority to ES96810224T priority patent/ES2203673T3/es
Priority to AT96810224T priority patent/ATE246036T1/de
Priority to DE59610627T priority patent/DE59610627D1/de
Priority to TW086101299A priority patent/TW358039B/zh
Priority to JP9036291A priority patent/JPH09276678A/ja
Priority to US08/808,380 priority patent/US5813762A/en
Priority to KR1019970006982A priority patent/KR100481930B1/ko
Priority to CA002199332A priority patent/CA2199332C/fr
Priority to PL97319395A priority patent/PL182950B1/pl
Priority to MXPA/A/1997/002575A priority patent/MXPA97002575A/xx
Priority to CZ19971091A priority patent/CZ291563B6/cs
Priority to CN97109584A priority patent/CN1078817C/zh
Priority to BR9701784-1A priority patent/BR9701784A/pt
Publication of EP0800857A1 publication Critical patent/EP0800857A1/fr
Application granted granted Critical
Publication of EP0800857B1 publication Critical patent/EP0800857B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40Static mixers
    • B01F25/42Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4316Straight 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
    • B01F25/43161Straight 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 composed of consecutive sections of flat pieces of material

Definitions

  • the invention relates to a mixing tube for low viscosity Fluids, in particular for fluids with suspended contained solids, according to the preamble of claim 1.
  • This device includes Mixing elements in a tube, each consisting of two outer segments and at least one inner segment consist. The segments are at one end or sides with the housing gap-free connected while their other ends are at a distance end in front of the pipe wall. Adjacent segments intersect with a gap at each intersection remains. The mixing takes place essentially within the mixing elements by a crosswise deflection individual partial flows.
  • the object of the invention is to provide a mixing tube to create static internals in terms of known static mixing device cheaper can be produced.
  • This task is claimed by the 1 defined mixing tube solved, in which the mixture due to the bottlenecks mentioned in the claim and the subsequent bottlenecks of mixed routes.
  • a Such a mixing device is also for low-viscosity Liquids that do not contain solids can be used.
  • the mixing tube according to the invention for low-viscosity fluids contains plate-shaped elements attached to or on individual parts of the tube, its cross section partially cover.
  • the bottlenecks left open by the elements each comprise at least one gap-shaped area, with a longitudinal extension of this gap, that of Pipe wall to pipe wall through the pipe axis or from the Pipe wall through the pipe axis to a second section runs.
  • the gap closes with the pipe axis Angles in the range between around 20 and 60 °, preferably between 35 and 45 °, a.
  • the one Length in the range of 1 to 10 pipe diameters.
  • the bottleneck or bottlenecks of the invention Mixing devices are shaped and arranged such that in the flowing fluid as it passes through a Bottleneck two opposite vortices form. While of the flow through the mixing section results in Whirl a partial mixing. Compared to the known mixing device are fewer mixing elements and for each mixing element only two segments are required to create one to achieve largely the same good mixing effect. However, a longer pipe is required. Further causes the mixing device according to the invention lower pressure drop.
  • the dependent claims 2 to 11 relate to advantageous Embodiments of the mixing tube according to the invention.
  • the Claim 12 relates to the use of Mixing tube.
  • Figures 1 and 2 represent an inventive Mixing tube 1 for low-viscosity fluids.
  • the tube wall 10 is only indicated by dash-dotted lines.
  • the circular Pipe has a diameter D.
  • the mixing pipe 1 contains plate-shaped elements 2 as internals, the individual Place the tube 1 partially cover its cross section and create bottlenecks 3.
  • the elements 2 are in elliptical surfaces with the main axes d and e arranged.
  • the bottleneck 3 released in the elements 2 includes two sections 31 and 32: a wide gap 31, the from the pipe wall 10 through the pipe axis c to the second portion 32 extends along the axis e, and a flow opening 32 adjoining the tube wall 10 of an elongated, here crescent-like shape, the is arranged transversely to the first partial region 31.
  • the shape of the second partial area 32 can also be, for example be lenticular.
  • the axis e (or the gap 31) closes with the Pipe axis c an angle ⁇ in the range between around 20 and 60 °, preferably between 35 and 45 °.
  • the second section 32 is downstream after the gap 31 arranged. After the bottleneck 3 there is a mixed section 4th
  • edges these segments essentially include the following Sections: an edge piece a with the shape of a elliptical arc adjacent to tube wall 10; on straight edge piece s, which forms a boundary with the gap 31; and an edge piece b that connects to the second partial area 32 of the bottleneck 3.
  • Between the tube wall 10 and the arcuate edge a can be a small gap located at individual points Connecting means, for example welding material, are bridged.
  • the elliptical border can, for example be approximated by straight pieces.
  • Edge piece s can also be a curved one.
  • the flowing fluid is in Fig.1 by arrows 5, 5 ' indicated.
  • the bottleneck 3 induces two in the flow opposite vortices that are projected onto a Cross-sectional area are indicated with arrows 6, 6 '.
  • the gap 31 is essentially trapezoidal (corner points A, B, B 'and A'); it widens towards the second Subarea 32 of the bottleneck 3. With this slit shape creates an optimal pair of vertebrae 6, 6 '. So that two Bottleneck is 3 mirror-symmetrical; the plane of symmetry lies on the pipe axis c.
  • the plate-shaped elements associated with a bottleneck 3 2 are in the embodiment of Figures 1 and 2 in arranged on one level. You can be together with the Manufacture connecting web 23 from a piece of sheet metal. Figure 3 shows how these elements 2 material-saving from one Strips of sheet metal can be cut out.
  • the plate-shaped elements 2 can instead of just be curved or kinked.
  • bottlenecks 3 in the mixing tube 1 there are at least two bottlenecks 3 in the mixing tube 1 provided, one each to a first bottleneck 3 adjacent, downstream bottleneck 3 ' outside the mixing section 4 at a distance m of around 3 to 5 pipe diameters D is arranged.
  • the free space between adjacent bottlenecks 3, 3 ' thus has a length of around 2 to 4 pipe diameters D. on.
  • the gaps 31 of adjacent bottlenecks 3, 3 ' are transverse arranged to each other.
  • Figures 4 to 8 represent further embodiments possible bottlenecks 3.
  • the two are in Fig.4 Segments 21 and 22, which have the same shape, are angular arranged to each other.
  • the shape of the segment 21 or 22 can be seen in Fig. 5.
  • the segments 21 and 22 can of course also by a web 23 - for example, as shown in dashed lines - connected his.
  • Figures 6 and 7 show bottlenecks 3 for Mixing tubes 1 according to the invention, their cross sections are square or rectangular.
  • Fig. 6 also shows that a web 23 at a different location than at the Border between the two sections of the bottleneck 3 can be arranged.
  • the web 23 can be, for example Be a rod with a circular cross-section.
  • the fifth exemplary embodiment according to FIG. 8 shows one Bottleneck 3, which only consists of a gap-shaped area 31 consists.
  • the area 31 can be trapezoidal (with two curved sides AA ', BB') and thereby in or against expand the direction of flow.
  • the mixing tube 1 according to the invention can mix a Fluids with suspended solids are used become. Especially if the solids are fibrous, this use is advantageous.

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

Claims (12)

  1. Tuyau mélangeur (1) pour des fluides à faible viscosité, notamment pour des fluides avec des matières solides en suspension, le tube mélangeur comporte au moins un élément de mélange (2) qui est constitué de deux segments (21, 22) en forme de plaque qui sont reliés le cas échéant par au moins une baguette étroite (23), où est formé par les segments (21, 22) dans le tuyau (1) un passage resserré (3) qui comprend une fente (31) entre les segments, avec une extension longitudinale de cette fente (31) qui s'étend de paroi de tuyau (10) à paroi de tuyau à travers l'axe de tuyau (c) ou de la paroi de tuyau à travers l'axe de tuyau (c) à une seconde zone partielle (32) disposée en aval du passage resserré (3), et la fente (31) forme avec l'axe de tuyau un angle (ϕ) dans la plage entre 20° et 60°, où est disposé en aval de chaque élément de mélange dans la direction d'écoulement un chemin de mélange (4) exempt d'inserts qui a une longueur dans la plage de 1 à 10 diamètres de tuyau (D) et dans lequel un fluide en écoulement forme deux tourbillons contraires.
  2. Tuyau mélangeur selon la revendication 1, caractérisé en ce que le passage resserré (3) comprend deux zones partielles, à savoir la fente (31) qui s'étend à travers l'axe de tuyau (c) vers la deuxième zone partielle (32) et la deuxième zone partielle qui forme une ouverture d'écoulement avoisinant la paroi de tuyau (10) d'une forme oblongue, par exemple, semblable à une demi-lune ou lenticulaire, où cette ouverture d'écoulement est disposée transversalement à la première zone partielle.
  3. Tuyau mélangeur selon la revendication 2, caractérisé en ce que les bords de ces segments comprennent sensiblement respectivement les pièces partielles suivantes: une pièce de bord (a), notamment sous la forme d'un arc elliptique qui avoisine étroitement ou avec un petit écart la paroi de tuyau (10), une pièce de bord (s) qui forme une limite à la fente 31 et une pièce de bord (b) qui avoisine la seconde zone partielle (32) du passage resserré.
  4. Tuyau mélangeur selon la revendication 3, caractérisé en ce que la ou une baguette se situe sur la limite entre les deux zones partielles (31, 32) du passage resserré.
  5. Tuyau mélangeur selon l'une des revendications 1 à 4, caractérisé en ce que la fente (31) est sensiblement en forme de trapèze et s'élargit dans la direction d'écoulement.
  6. Tuyau mélangeur selon l'une des revendications 1 à 5, caractérisé en ce que le passage resserré (3) est réalisé d'une manière spéculairement symétrique où le plan de symétrie se situe sur l'axe de tuyau (c).
  7. Tuyau mélangeur selon l'une des revendications 1 à 6, caractérisé en ce que les segments en forme de plaque (21, 22) associés au passage resserré (3) sont disposés dans un plan.
  8. Tuyau mélangeur selon les revendications 7 et 4, caractérisé en ce que les segments en forme de plaque disposés dans un plan sont réalisés conjointement avec la baguette de liaison (23) en une pièce de tôle.
  9. Tuyau mélangeur selon l'une des revendications 1 à 8, caractérisé en ce qu'au moins deux éléments de mélange (2) sont prévus, où respectivement le passage resserré avoisinant (3') situé en aval est disposé à l'extérieur du chemin de mélange (4) à une distance (m) d'environ 3 à 5 diamètres de tuyau (D), où l'espace exempt d'inserts entre les passages resserrés avoisinants présente une longueur d'environ 2 à 4 diamètres de tuyau.
  10. Tuyau mélangeur selon la revendication 9, caractérisé en ce que les fentes (31) d'éléments de mélange avoisinants (2) sont disposés transversalement l'une à l'autre.
  11. Tuyau mélangeur selon l'une des revendications 1 à 10, caractérisé en ce que dans la projection normale sur une section transversale de tuyau, la face ouverte du passage resserré (3) représente 50 - 75% de la face en section transversale du tuyau.
  12. Utilisation d'un tuyau mélangeur (1) selon l'une des revendications 1 à 11 pour le mélange d'un fluide avec des matières solides en suspension, où notamment les matières solides sont fibreuses.
EP96810224A 1996-04-12 1996-04-12 Tuyau mélangeur pour fluides à faible viscosité Expired - Lifetime EP0800857B1 (fr)

Priority Applications (14)

Application Number Priority Date Filing Date Title
EP96810224A EP0800857B1 (fr) 1996-04-12 1996-04-12 Tuyau mélangeur pour fluides à faible viscosité
ES96810224T ES2203673T3 (es) 1996-04-12 1996-04-12 Tubo mezclador para fluidos de baja viscosidad.
AT96810224T ATE246036T1 (de) 1996-04-12 1996-04-12 Mischrohr für niedrigviskose fluide
DE59610627T DE59610627D1 (de) 1996-04-12 1996-04-12 Mischrohr für niedrigviskose Fluide
TW086101299A TW358039B (en) 1996-04-12 1997-02-04 Mixer tube for low viscosity fluids and use thereof
JP9036291A JPH09276678A (ja) 1996-04-12 1997-02-20 低粘度流体のためのミキサー管
US08/808,380 US5813762A (en) 1996-04-12 1997-02-28 Mixer tube for low viscosity fluids
KR1019970006982A KR100481930B1 (ko) 1996-04-12 1997-03-04 저점성유체용믹서튜브
CA002199332A CA2199332C (fr) 1996-04-12 1997-03-06 Tube de melange pour liquides a faible viscosite
PL97319395A PL182950B1 (pl) 1996-04-12 1997-04-09 Mieszalnik rurowy do płynów o niskiej lepkości
MXPA/A/1997/002575A MXPA97002575A (en) 1996-04-12 1997-04-09 Mixing pipe for viscosity fluids b
CZ19971091A CZ291563B6 (cs) 1996-04-12 1997-04-10 Směšovací trubice pro nízkoviskózní kapaliny
CN97109584A CN1078817C (zh) 1996-04-12 1997-04-11 低粘度液体混合管
BR9701784-1A BR9701784A (pt) 1996-04-12 1997-04-11 Tubo de mistura para fluidos de baixa viscosidade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96810224A EP0800857B1 (fr) 1996-04-12 1996-04-12 Tuyau mélangeur pour fluides à faible viscosité

Publications (2)

Publication Number Publication Date
EP0800857A1 EP0800857A1 (fr) 1997-10-15
EP0800857B1 true EP0800857B1 (fr) 2003-07-30

Family

ID=8225586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810224A Expired - Lifetime EP0800857B1 (fr) 1996-04-12 1996-04-12 Tuyau mélangeur pour fluides à faible viscosité

Country Status (13)

Country Link
US (1) US5813762A (fr)
EP (1) EP0800857B1 (fr)
JP (1) JPH09276678A (fr)
KR (1) KR100481930B1 (fr)
CN (1) CN1078817C (fr)
AT (1) ATE246036T1 (fr)
BR (1) BR9701784A (fr)
CA (1) CA2199332C (fr)
CZ (1) CZ291563B6 (fr)
DE (1) DE59610627D1 (fr)
ES (1) ES2203673T3 (fr)
PL (1) PL182950B1 (fr)
TW (1) TW358039B (fr)

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TWI417135B (zh) * 2007-06-22 2013-12-01 Sulzer Chemtech Ag 靜態混合元件
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US9347355B2 (en) * 2011-09-08 2016-05-24 Tenneco Automotive Operating Company Inc. In-line flow diverter
ES2582321T3 (es) * 2012-02-03 2016-09-12 General Electric Technology Gmbh Disposición para inyectar un agente reductor en un gas de combustión
DE102012008732A1 (de) * 2012-05-04 2013-11-07 Xylem Water Solutions Herford GmbH Mischvorrichtung für UV-Wasserbehandlungsanlagen mit offenem Kanal
CN104560111B (zh) * 2013-10-25 2017-08-25 中国石油化工股份有限公司 传热管以及使用其的裂解炉
JP6382041B2 (ja) * 2014-09-10 2018-08-29 旭有機材株式会社 流体混合器
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EP3034159B1 (fr) * 2014-12-18 2020-11-04 The Procter and Gamble Company Mélangeur statique et procédé pour mélanger des fluides
US10729600B2 (en) 2015-06-30 2020-08-04 The Procter & Gamble Company Absorbent structure
HUE057989T2 (hu) 2015-11-04 2022-06-28 Procter & Gamble Nedvszívó szerkezetet tartalmazó nedvszívó árucikk
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EP3479893A1 (fr) 2017-11-06 2019-05-08 Sulzer Chemtech AG Conduit de mélangeur amélioré et son procédé d'utilisation

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Also Published As

Publication number Publication date
KR970069108A (ko) 1997-11-07
US5813762A (en) 1998-09-29
CA2199332A1 (fr) 1997-10-12
KR100481930B1 (ko) 2005-07-18
PL319395A1 (en) 1997-10-13
EP0800857A1 (fr) 1997-10-15
PL182950B1 (pl) 2002-05-31
CN1078817C (zh) 2002-02-06
CZ109197A3 (en) 1997-10-15
BR9701784A (pt) 1999-10-19
DE59610627D1 (de) 2003-09-04
CZ291563B6 (cs) 2003-04-16
JPH09276678A (ja) 1997-10-28
TW358039B (en) 1999-05-11
MX9702575A (es) 1997-10-31
CN1167007A (zh) 1997-12-10
CA2199332C (fr) 2000-11-21
ATE246036T1 (de) 2003-08-15
ES2203673T3 (es) 2004-04-16

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