EP2150765B1 - Canal d'écoulement pour un échangeur de chaleur mélangeur - Google Patents

Canal d'écoulement pour un échangeur de chaleur mélangeur Download PDF

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Publication number
EP2150765B1
EP2150765B1 EP08748356A EP08748356A EP2150765B1 EP 2150765 B1 EP2150765 B1 EP 2150765B1 EP 08748356 A EP08748356 A EP 08748356A EP 08748356 A EP08748356 A EP 08748356A EP 2150765 B1 EP2150765 B1 EP 2150765B1
Authority
EP
European Patent Office
Prior art keywords
flow channel
web plates
planes
longitudinal axis
inside diameter
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.)
Active
Application number
EP08748356A
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German (de)
English (en)
Other versions
EP2150765A1 (fr
Inventor
Martin SCHÖCHLIN
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.)
Atlas Holding AG
Original Assignee
Atlas Holding 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 Atlas Holding AG filed Critical Atlas Holding AG
Priority to EP08748356A priority Critical patent/EP2150765B1/fr
Publication of EP2150765A1 publication Critical patent/EP2150765A1/fr
Application granted granted Critical
Publication of EP2150765B1 publication Critical patent/EP2150765B1/fr
Active 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
    • F28D7/16—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 being arranged in parallel spaced relation
    • 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
    • B01F25/43161—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 composed of consecutive sections of flat pieces of material
    • 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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
    • 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
    • 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
    • F28D2021/0098—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for viscous or semi-liquid materials, e.g. for processing sludge

Definitions

  • the invention relates to a flow channel for a mixer-heat exchanger, which flow channel is tubular with a longitudinal axis and a circular in cross-section inner surface with an inner diameter and at least one mixing insert a length with a plurality of parallel to the longitudinal axis of the flow channel over the length of the mixing insert guided tubes having an inner diameter and arranged with a plurality of crossed, with the longitudinal axis of the flow channel at an angle including web plates of a width, wherein the web plates are arranged in two intersecting, a plurality of parallel planes with an intermediate spacing plane shares, and a third, a plurality of parallel planes having a width of the web plates corresponding spacing having plane group which intersects two intersecting plane shares at right angles, wherein the intersection lines of the planes of two intersecting planes of planes with the planes of the third layer family of longitudinal edges of the web plates arranged alternately between adjacent planes of the third group of planes in the planes of the two intersecting planes of planes, the tubes being passed through opening
  • a flow channel of the type mentioned is out EP 1 067 352 B1 known.
  • the invention has for its object to provide a flow channel of the type mentioned above, which leads in particular in highly viscous liquids to a significant improvement in heat exchange and allows the construction of a compact heat exchanger.
  • each mixing insert has at least twenty-eight crossed web plates, the ratio of the web width to the inner diameter of the flow channel is at most 0.25, the ratio of the length of the mixing insert to the inner diameter of the flow channel is at least 0.4 and the angle of the web plates to the longitudinal axis of the flow channel 30 ° to 60 ° and the ratio of the distance between adjacent planes of the intersecting, the web plates having plane shares to the inner diameter of the flow channel is at most 0.3 and the inner diameter of the tubes is less than 6.
  • the ratio of the distance between adjacent planes the intersecting, the web plates having level coulters to the inner diameter of the tubes less than 4, in particular less than 3.
  • Nusselt number is a dimensionless measure from the theory of similarity of heat transfer, which measures the improvement of heat transfer from a surface, if one compares the actual conditions with the conditions in which only heat conduction through a dormant layer would occur.
  • the crossed web plates can have a different angle to the longitudinal axis of the flow channel. However, an equal angle is preferred.
  • the planes of the two intersecting layers of planes can have different distances between them. However, an equal spacing is preferred.
  • the planes of the two intersecting planes of planes can have a slight curvature in the longitudinal axis of the flow channel.
  • the planes of the third layer of planes may have a different pitch, i.
  • the web plates can be different widths. However, an equal spacing of the planes and, accordingly, a same width of all web plates is preferred.
  • the mixing inserts in the flow channel are arranged one behind the other, wherein the adjacent mixing inserts are rotated by an angle of 90 ° about the longitudinal axis of the flow channel against each other.
  • the freely positionable tubes may be brazed or welded to the web plates, or the web plates may have shrunk to the tubes.
  • a second component via at least one tube with at least one hole for a liquid outlet, preferably via a plurality of tubes with a plurality Holes, a first, flowing in the flow channel component can be admixed.
  • mixing inserts can be arranged one behind the other with intervals of at most three times the length of a mixing insert, wherein the mixing inserts are rotated by the distances by an angle of 90 ° to each other.
  • the flow channel according to the invention is suitable as a static mixer.
  • a length L having mixing inserts 10, 12 for flowing in a flow channel media have according to Fig. 2 a tube bundle 14 with 188 arranged parallel to the longitudinal axis m, over the entire length L extending tubes 16.
  • Each mixing insert 10, 12 has a plurality of intersecting web plates 18 A, 18 B.
  • the web plates 18 A, 18 B all have an equal width b and lie in parallel to each other with the same spacing a arranged planes EA, EB, the two intersecting plane shares A, B form.
  • the planes EA of the plane group A include with the longitudinal axis m in each case an equal angle ⁇ A, ⁇ B of 45 °.
  • a third plane group C parallel to the longitudinal axis m and intersect the planes EA, EB of the two intersecting plane shares A, B at right angles.
  • the lines of intersection of the planes EA, EB of the two intersecting planes A, B form the planes EC of the third plane group C longitudinal edges 20 A, 20 B alternately between adjacent planes EC in the planes EA, EB of the two intersecting planes A, B arranged web plates 18 A, 18 B.
  • Fig. 3 are the by an angle of 90 ° about its longitudinal axis m against each other twisted mixing inserts 10, 12 arranged in a tubular flow channel 22 having an inner circumferential surface 24 with a circular cross-section, an inner diameter Di and a pipe or Strömungskanall Kunststoffsachse x.
  • the longitudinal axes m of the mixing inserts 10, 12 lie in the longitudinal axis x of the flow channel 22.
  • All web plates 18 A, 18 B extend within each mixing insert 10, 12 via their respective maximum through the end faces of the mixing inserts 10, 12 and through the inner wall of the flow channel, maximum length, the contour of the web plates 18 A, 18 B the circular Cross-section of the flow channel 22 is adapted so that the web plates 18 A, 18 B adjoin the inner circumferential surface 24 of the flow channel 22 with a small clearance.
  • the tubes 16 pass through the web plates 18 A, 18 B via openings arranged in these, which have according to the angle between the web plate 18 A, 18 B and tube 16 an elliptical edge boundary.
  • the tubes 16 are secured in the region of the openings via a soldering or welding point on the web plates 18 A, 18 B.
  • the web plates 18 A, 18 B are connected to each other at their intersections via soldering or welding points.
  • the individual mixing inserts 10, 12 When assembling a mixer-heat exchanger, the individual mixing inserts 10, 12 by the crossed arrangement of the corresponding number of web plates 18 A, 18 B prefabricated.
  • the prefabricated mixing inserts 10, 12 are rotated by 90 ° against each other in their longitudinal axis m strung together. Subsequently, the tubes 16 are pushed parallel to the longitudinal axis m through the openings in the web plates 18 A, 18 B and secured thereto. The insert thus manufactured is subsequently inserted into the flow channel.
  • FIG. 5 the results of measurements of the heat transfer at three differently constructed flow channels S1, S2, S3 as Nusseltiere (Nu) as a function of the ratio web distance (a) / tube inner diameter (di) at a constant reference Pecleteahl (Pe ref ) are shown graphically.
  • the structure of the flow channels S1, S2, S3 can be seen from the table below. Table: Structure of the investigated flow channels flow channel S1 S2 S3 Inner diameter (Di) of the flow channel [mm] 145 279.3 358 Number of pipes 52 180 180 Inner diameter (di) of the tubes [mm] 10 10 10 10
  • the web distance (a) results from the measured values from the ratio web distance (a) / pipe internal diameter (di) in Fig. 5 , From the Fig. 5 is the surprising effect that the heat transfer suddenly rises unexpectedly when falling below a certain ratio, clearly visible.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (11)

  1. Canal d'écoulement pour un échangeur de chaleur mélangeur, canal d'écoulement (22) qui est réalisé sous forme tubulaire avec un axe longitudinal (x) et avec une surface latérale intérieure de section transversale circulaire présentant un diamètre intérieur (Di) et qui présente au moins une garniture de mélange (10, 12) de longueur (L) avec une multiplicité de tubes (16) présentant un diamètre intérieur (di) menés sur la longueur (L) de la garniture de mélange (10, 12) parallèlement à l'axe longitudinal (x) du canal d'écoulement (22) et avec une multiplicité de plaques d'entretoise (18 A, 18 B) de largeur (b) disposées de façon croisée et formant un angle (α) avec l'axe longitudinal (x) du canal d'écoulement (22), dans lequel les plaques d'entretoise (18 A, 18 B) sont disposées dans deux faisceaux de plans (A, B) qui se croisent et qui comprennent une multiplicité de plans parallèles (EA, EB) présentant un écartement (a), et un troisième faisceau de plans (C) qui comprend une multiplicité de plans parallèles (EC) présentant un écartement (b) correspondant à la largeur (b) des plaques d'entretoise (18 A, 18 B) et qui coupe à angle droit les deux faisceaux de plans (A, B) qui se croisent, dans lequel les lignes d'intersection des plans (EA, EB) des deux faisceaux de plans (A, B) qui se croisent avec les plans (EC) du troisième faisceau de plans (C) forment des bords longitudinaux (20) des plaques d'entretoise (18 A, 18 B) disposées entre des plans voisins (EC) du troisième faisceau de plans (C) en alternance dans les plans (EA, EB) des deux faisceaux de plans (A, B) qui se croisent, dans lequel les tubes (16) sont menés à travers des ouvertures dans les plaques d'entretoise (18 A, 18 B) et sont fixés aux plaques d'entretoise (18 A, 18 B), caractérisé en ce que chaque garniture de mélange (10, 12) présente au moins vingt-huit plaques d'entretoise (18 A, 18 B) croisées.par paires, le rapport de la largeur (b) des plaques d'entretoise (18 A, 18 B) au diamètre intérieur (Di) du canal d'écoulement (22) vaut au maximum 0,25, le rapport de la longueur (L) de la garniture de mélange (10, 12) au diamètre intérieur (Di) du canal d'écoulement (22) vaut au moins 0,4, l'angle (α) des plaques d'entretoise (18 A, 18 B) par rapport à l'axe longitudinal (x) du canal d'écoulement (22) vaut de 30° à 60° et le rapport de l'écartement (a) de plans voisins (EA, EB) des faisceaux de plans (A, B) qui se croisent et comprennent les plaques d'entretoise (18 A, 18 B) au diamètre intérieur (Di) du canal d'écoulement(22) vaut au maximum 0,3 et au diamètre intérieur (di) des tubes (16) est inférieur à 6.
  2. Canal d'écoulement selon la revendication 1, caractérisé en ce que le rapport de l'écartement (a) de plans voisins (EA, EB) des faisceaux de plans (A, B) qui se croisent et comprennent les plaques d'entretoise (18 A, 18 B) au diamètre intérieur (di) des tubes (16) est inférieur à 4, de préférence inférieur à 3.
  3. Canal d'écoulement selon la revendication 1, caractérisé en ce que les plaques d'entretoise (18 A, 18 B) disposées de façon croisée présentent un angle égal (α) par rapport à l'axe longitudinal (x) du canal d'écoulement (22).
  4. Canal d'écoulement selon la revendication 1, caractérisé en ce que les plans (EA, EB) des deux faisceaux de plans (A, B) qui se croisent présentent un écartement (a) égal.
  5. Canal d'écoulement selon la revendication 1, caractérisé en ce que les plans (EA, EB) des deux faisceaux de plans (A, B) qui se croisent présentent une légère courbure suivant l'axe longitudinal (x) du canal d'écoulement (22).
  6. Canal d'écoulement selon la revendication 1, caractérisé en ce que les plans (EC) du troisième faisceau de plans (C) présentent un écartement égal (b) correspondant à la largeur (b) des plaques d'entretoise (18 A, 18 B).
  7. Canal d'écoulement selon la revendication 1, caractérisé en ce que les garnitures de mélange (10, 12) sont disposées l'une derrière l'autre dans le canal d'écoulement (22), dans lequel les garnitures de mélange (10, 12) adjacentes les unes aux autres sont tournées d'un angle de 90° l'une par rapport à l'autre autour de l'axe longitudinal (x) du canal d'écoulement (22).
  8. Canal d'écoulement selon la revendication 1, caractérisé en ce que les tubes (14) peuvent être positionnés librement.
  9. Canal d'écoulement selon la revendication 1, caractérisé en ce qu'au moins un tube (14) présente au moins un trou pour une sortie de liquide.
  10. Canal d'écoulement selon la revendication 1, caractérisé en ce que plusieurs garnitures de mélange (10, 12) sont disposées l'une derrière l'autre dans le canal d'écoulement (22), avec des espacements valant au maximum trois fois la longueur (L) d'une garniture de mélange (10, 12), dans lequel les garnitures de mélange (10, 12) sont tournées d'un angle de 90° l'une par rapport à l'autre selon les espacements.
  11. Utilisation d'un canal d'écoulement (22) selon l'une quelconque des revendications précédentes comme mélangeur statique.
EP08748356A 2007-05-24 2008-05-20 Canal d'écoulement pour un échangeur de chaleur mélangeur Active EP2150765B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08748356A EP2150765B1 (fr) 2007-05-24 2008-05-20 Canal d'écoulement pour un échangeur de chaleur mélangeur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP07405151 2007-05-24
PCT/CH2008/000226 WO2008141472A1 (fr) 2007-05-24 2008-05-20 Canal d'écoulement pour un échangeur de chaleur mélangeur
EP08748356A EP2150765B1 (fr) 2007-05-24 2008-05-20 Canal d'écoulement pour un échangeur de chaleur mélangeur

Publications (2)

Publication Number Publication Date
EP2150765A1 EP2150765A1 (fr) 2010-02-10
EP2150765B1 true EP2150765B1 (fr) 2011-02-16

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EP08748356A Active EP2150765B1 (fr) 2007-05-24 2008-05-20 Canal d'écoulement pour un échangeur de chaleur mélangeur

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US (1) US8628233B2 (fr)
EP (1) EP2150765B1 (fr)
AT (1) ATE498810T1 (fr)
DE (1) DE502008002619D1 (fr)
WO (1) WO2008141472A1 (fr)

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EP2596860A1 (fr) 2011-11-25 2013-05-29 Fluitec Invest AG Réacteur à circulation pourvu d'un échangeur thermique
JP2015010749A (ja) * 2013-06-28 2015-01-19 株式会社日立製作所 伝熱装置
US9777973B2 (en) 2013-09-20 2017-10-03 Promix Solutions Ag Device for mixing and heat exchange
EP2881154B1 (fr) 2013-12-04 2018-02-21 Fluitec Invest AG Dispositif et procédé de vaporisation par détente
EP3081285B1 (fr) 2015-04-16 2018-02-14 Fluitec Invest AG Dispositif de mélange statique pour des matières pouvant s'écouler
DE102015113501A1 (de) * 2015-08-14 2017-02-16 Falk + Thomas Engineering GmbH Wärmeüberträger
EP3374077B1 (fr) 2015-11-11 2023-07-12 Fluitec Invest AG Dispositif de mise en oeuvre d'une réaction chimique dans un procédé continu
EP3181221A1 (fr) 2015-12-16 2017-06-21 Fluitec Invest AG Procede de surveillance d'une reaction chimique et reacteur
CN107883803B (zh) * 2017-11-06 2019-10-15 深圳中广核工程设计有限公司 管壳式换热器
EP3620230A1 (fr) 2018-09-07 2020-03-11 Fluitec Invest AG Dispositif d'un réacteur chimique et procédé
EP3932531A1 (fr) 2020-07-02 2022-01-05 Fluitec Invest AG Calorimètre à réactions continu
CH717741A2 (de) 2020-08-14 2022-02-15 Sulzer Management Ag Vorrichtung zur Zu- oder Abfuhr von Wärme, zur Durchführung von Reaktionen, und zum Mischen und Dispergieren von strömenden Medien.
EP4292699A1 (fr) 2022-06-17 2023-12-20 Fluitec Invest AG Appareil et procédé pour effectuer une réaction chimique non sélective
CN115727691B (zh) * 2022-11-18 2023-11-21 大连理工大学 基于Sigmoid函数杂化方法的极小曲面与Kagome桁架结构的多孔介质换热器

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Also Published As

Publication number Publication date
EP2150765A1 (fr) 2010-02-10
DE502008002619D1 (de) 2011-03-31
US8628233B2 (en) 2014-01-14
US20100163216A1 (en) 2010-07-01
ATE498810T1 (de) 2011-03-15
WO2008141472A1 (fr) 2008-11-27

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