EP2113732A1 - Mélangeur-échangeur thermique - Google Patents

Mélangeur-échangeur thermique Download PDF

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Publication number
EP2113732A1
EP2113732A1 EP08405121A EP08405121A EP2113732A1 EP 2113732 A1 EP2113732 A1 EP 2113732A1 EP 08405121 A EP08405121 A EP 08405121A EP 08405121 A EP08405121 A EP 08405121A EP 2113732 A1 EP2113732 A1 EP 2113732A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
mixer
longitudinal axis
mixing elements
exchanger tubes
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Withdrawn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
EP08405121A
Other languages
German (de)
English (en)
Inventor
Alain Georg
Silvano Andreoli
Günther Schwald
Simon Eichmann
Matthias Meier
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.)
FLUITEC INVEST AG
Original Assignee
FLUITEC INVEST 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 FLUITEC INVEST AG filed Critical FLUITEC INVEST AG
Priority to EP08405121A priority Critical patent/EP2113732A1/fr
Publication of EP2113732A1 publication Critical patent/EP2113732A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/008—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using scrapers
    • 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
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • 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
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/08—Non-rotary, e.g. reciprocated, appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
    • 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 mixer heat exchanger for heating and cooling of flowable materials, arranged in a flow channel in a longitudinal axis of heat exchanger tubes and static mixing elements, wherein the heat exchanger tubes pass through the mixing elements substantially form-fitting openings.
  • Heat exchange devices are known in many designs and common in the industry. Most heat exchangers have turbulent flow conditions.
  • Known heat exchangers are tube bundle heat exchangers which are additionally equipped with static mixing elements on the inside in order to additionally improve the heat transfer at the tube wall.
  • static mixer heat exchangers Thanks to static mixer heat exchangers, viscous liquids can be continuously processed with basic operations such as mixing, heat and mass transfer or chemical reaction technology.
  • the high heat transfer capacity of static mixer heat exchangers and the excellent mixing performance in the laminar flow range allow use as a heat exchanger or reactor.
  • the mixer heat exchanger Due to the achieved, very high Nusselt number and the large surface through the tube bundle, the mixer heat exchanger has an excellent volume-related heat transfer capacity. Another special feature of the mixer heat exchanger is the setting of a perfect temperature profile when exiting the heat exchanger, even for liquids with a viscosity>1'000'000 mPas. The reason lies in the very high mixing performance, which far exceeds the mixing performance of conventional heat exchangers.
  • the invention has for its object to provide a mixer-heat exchanger of the type mentioned in the deposits on the surface of the heat exchanger tubes can be removed mechanically without disassembly of the heat exchange device in a simple manner.
  • the mixer heat exchanger comprises at least one heat exchanger tube and a mixing element.
  • the mixing elements are for example pairs of crossed web plates.
  • the mixing elements are movable back and forth via a common actuating rod in the longitudinal axis of the flow channel.
  • the heat exchanger tubes are closed on one side, wherein in the heat exchanger tubes protruding lances are provided for a heat exchange medium.
  • the heat exchanger tubes can also be returned in a U-shape to the beginning of the tube; in this case, no lances are required.
  • slidable cleaning bodies can additionally be placed on the heat exchanger tubes.
  • the mixing elements can also be moved back and forth by changing the flow direction in the longitudinal axis of the flow channel.
  • a device for heating and cooling flowable materials may also comprise a multiplicity of parallel mixer heat exchangers.
  • Fig. 1 shown, in its longitudinal axis m adjacent one another Length L having mixing inserts 10, 12 for flowing in a flow channel media are traversed by a tube bundle 14 with parallel to the longitudinal axis m arranged heat exchanger 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 and lie in parallel to each other with the same intermediate or web spacing a arranged planes that form two intersecting plateaus.
  • the planes each include an equally large angle of 45 ° with the longitudinal axis m.
  • the adjoining mixing inserts 10, 12 are arranged alternately rotated by an angle of 90 ° about its longitudinal axis m against each other.
  • slidable plates can be placed as a cleaning body on the heat exchanger tubes 16.
  • Fig. 2 shows a mixer-heat exchanger 40.
  • the mutually rotated by an angle of 90 ° about its longitudinal axis m mixing inserts 10, 12 are arranged in a tubular flow channel 22 with an inner circumferential surface 24 with a circular cross-section and a pipe or Strömungskanall Kunststoffsachse x of the mixer-heat exchanger 40 ,
  • 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 through the end faces of the mixing inserts 10, 12 and limited by the inner circumferential surface 24 of the flow channel 22, maximum possible length, wherein the contour of the web plates 18 A, 18 B is adapted to the circular cross-section of the flow channel 22 so that the web plates 18 A, 18 B with a small clearance to the inner circumferential surface 24 of the flow channel 22 adjacent.
  • the heat exchanger tubes 16 pass through the web plates 18 A, 18 B via arranged in these openings 20 which have according to the angle between the web plate 18 A, 18 B and heat exchanger tube 16 an elliptical edge boundary.
  • the web plates 18 A, 18 B are connected at their intersections at least partially via soldering or welding points.
  • the individual mixing inserts 10, 12 When assembling the mixer-heat exchanger 40, 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 heat exchanger tubes 16 are pushed parallel to the longitudinal axis m through the openings 20 of the web plates 18 A, 18 B therethrough.
  • Two diametrically opposite fixing rods 26 - these may also be formed by heat exchanger tubes 16 - are soldered or welded points on the web plates 18 A, 18 B attached and used to fix the mixing inserts 12, 14, so that they by appropriate actuation of the fixing rods 26 together in the flow channel longitudinal axis x back and forth are displaced.
  • the two fixing rods 26 are connected at one end via a crossbar 28. On the crossbar 28 centrally centrally arranged in the flow channel longitudinal axis x actuating rod 30 is fixed.
  • the insert thus manufactured is inserted from one side of the mixer-heat exchanger 40 in the flow channel 22, wherein the actuating rod 30 is led out on the other side via a fluid-tight passage 32 in an end wall 34 of the mixer-heat exchanger 40 from this.
  • the heat exchanger tubes 16 are open at one end and closed at the other end via a bottom 17.
  • the heat exchange medium is here via one in each heat exchanger tube 16 used lance 36 whose free end is led to just before the closed bottom 17 of the heat exchanger tube 16, via a flanged on an end face of the mixer-heat exchanger 40 inlet pipe stub 42 via a gap 43 at the same time introduced lances 36 and flows back after exiting the lances 36 at the bottom 17 of each heat exchanger tube 16 within the lance 34 and inner wall of each heat exchanger tube 16 in the opposite direction, exits from the open ends of the heat exchanger tubes 16 in a second space 44 and leaves the mixer-heat exchanger 40 via a preferably laterally on the intermediate space 44 arranged outlet pipe 46.
  • the outlet pipe socket 46 may also be arranged centrally.
  • the mixture to be mixed in the mixer heat exchanger 40 and / or brought to a reaction mixture is introduced via a laterally arranged on the mixer heat exchanger 40 inlet pipe socket 48 and flows through the flow channel 22 on the web plates 18 A, 18 B of the mixing inserts 10, 12 passing the Heat exchanger tubes 16 along the d the inlet pipe stub 48 remote end wall 34 of the mixer-heat exchanger 40 and exits there through a laterally arranged outlet pipe stub 50 as a reaction product from the mixer heat exchanger 40.
  • a corresponding volume part is provided as a deflecting 38.
  • the ends of the lances 36 with the inlet openings for the heat exchange medium are fluid-tightly inserted into a common bottom plate 52, which is sealed by a seal 53 against the second gap 44.
  • the heat exchanger tubes 16 are fluid tightly inserted at their open ends into a common end plate 56 defining the gap.
  • the mixing inserts 10, 12 which are connected to one another via the fixing rods 26 are moved back and forth by means of the actuating rod 40 from time to time.
  • the heat exchanger tubes 16 over the edge of their openings 20 practically form-fitting enclosing web plates 18 A, 18 B pulled over the surface of the heat exchanger tubes 40 and pushed.
  • the deposits are mechanically removed from the pipe surfaces. This process can be done without disassembly of the mixer-heat exchanger 40 and in most cases, even without interruption to be performed manually or automatically.
  • Fig. 4 schematically shows an arrangement with two parallel mixer heat exchangers 40 a, 40 b.
  • the mixture of substances to be treated is supplied to the individual mixer heat exchangers 40 a, 40 b via a central supply line 56 and via branching off of these distribution lines 58 a, 58 b.
  • a valve 60 a, 60 b for individually opening and closing the manifolds 58 a, 58 b provided.
  • Temperature sensors T at the output of each mixer heat exchanger 40 a, 40 b the temperature of the reaction product is measured continuously. With increasing deposits on the heat exchanger tubes 16, the temperature of the reaction product changes, so that the exceeding or falling below a predetermined temperature limit for the output of a signal or directly used for the automatic triggering of the cleaning process can.
  • the outlet lines 62 a, 62 b of the individual mixer heat exchangers 60 a, 60 b are combined to form a central drain line 64 for the reaction product.
  • a mixer 66 is connected to compensate for different temperatures.
  • the device shown is merely illustrative and is not limited to two parallel mixer heat exchangers 40 a, 40 b. Depending on the desired capacity or frequency of the cleaning intervals, a device with three and more parallel mixer heat exchangers may be displayed.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP08405121A 2008-04-30 2008-04-30 Mélangeur-échangeur thermique Withdrawn EP2113732A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08405121A EP2113732A1 (fr) 2008-04-30 2008-04-30 Mélangeur-échangeur thermique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08405121A EP2113732A1 (fr) 2008-04-30 2008-04-30 Mélangeur-échangeur thermique

Publications (1)

Publication Number Publication Date
EP2113732A1 true EP2113732A1 (fr) 2009-11-04

Family

ID=39712170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08405121A Withdrawn EP2113732A1 (fr) 2008-04-30 2008-04-30 Mélangeur-échangeur thermique

Country Status (1)

Country Link
EP (1) EP2113732A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013037770A1 (fr) 2011-09-15 2013-03-21 Bayer Intellectual Property Gmbh Procédé de production continue de polymères vinyliques dispersibles dans l'eau
EP2629039A1 (fr) 2012-02-17 2013-08-21 Armacell Enterprise GmbH Échangeur de chaleur à flux expansible pour fontes de polymères
EP2796195A1 (fr) * 2013-04-22 2014-10-29 Fluitec Invest AG Réacteur tubulaire continu
EP2881154A1 (fr) * 2013-12-04 2015-06-10 Fluitec Invest AG Dispositif et procédé de vaporisation par détente
EP3081285A1 (fr) 2015-04-16 2016-10-19 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
EP3620230A1 (fr) 2018-09-07 2020-03-11 Fluitec Invest AG Dispositif d'un réacteur chimique et procédé
CN111375323A (zh) * 2018-12-28 2020-07-07 中国石油天然气股份有限公司 挡板式发泡器
EP3800418A1 (fr) * 2019-10-01 2021-04-07 BITZER Kühlmaschinenbau GmbH Échangeur de chaleur, installation de réfrigération ou de chauffage doté d'un tel échangeur de chaleur
EP3932531A1 (fr) 2020-07-02 2022-01-05 Fluitec Invest AG Calorimètre à réactions continu
WO2022032401A1 (fr) * 2020-08-14 2022-02-17 Sulzer Management Ag Appareil d'alimentation en chaleur ou de dissipation de chaleur, pour la mise en œuvre de réactions et pour le mélange et la dispersion de milieux en écoulement

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR450532A (fr) * 1912-10-25 1913-03-27 Joseph William Hardy Support démontable et amovible pour fixation des grattoirs nettoyeurs de tubes d'économiseurs de combustibles et de surchauffeurs de vapeur
DE612866C (de) * 1930-07-27 1935-05-07 F Soltau Dipl Ing Schabvorrichtung fuer Verdampfer
GB714926A (en) * 1951-05-10 1954-09-08 Swinney Brothers Ltd Improvements in or relating to heat exchangers
DE8032737U1 (de) * 1981-04-02 Selwig & Lange GmbH, 3300 Braunschweig Kühlmaische
DE3203524A1 (de) * 1981-06-27 1983-01-13 Selwig & Lange GmbH, 3300 Braunschweig Kuehlmaische
DE4135816A1 (de) * 1990-10-30 1992-07-09 Magdy El Allawy Mohamed Duennschichtwaermetauscher
EP1067352A1 (fr) * 1999-07-07 2001-01-10 Fluitec Georg AG Dispositif d'echange de chaleur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8032737U1 (de) * 1981-04-02 Selwig & Lange GmbH, 3300 Braunschweig Kühlmaische
FR450532A (fr) * 1912-10-25 1913-03-27 Joseph William Hardy Support démontable et amovible pour fixation des grattoirs nettoyeurs de tubes d'économiseurs de combustibles et de surchauffeurs de vapeur
DE612866C (de) * 1930-07-27 1935-05-07 F Soltau Dipl Ing Schabvorrichtung fuer Verdampfer
GB714926A (en) * 1951-05-10 1954-09-08 Swinney Brothers Ltd Improvements in or relating to heat exchangers
DE3203524A1 (de) * 1981-06-27 1983-01-13 Selwig & Lange GmbH, 3300 Braunschweig Kuehlmaische
DE4135816A1 (de) * 1990-10-30 1992-07-09 Magdy El Allawy Mohamed Duennschichtwaermetauscher
EP1067352A1 (fr) * 1999-07-07 2001-01-10 Fluitec Georg AG Dispositif d'echange de chaleur

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013037770A1 (fr) 2011-09-15 2013-03-21 Bayer Intellectual Property Gmbh Procédé de production continue de polymères vinyliques dispersibles dans l'eau
EP2629039A1 (fr) 2012-02-17 2013-08-21 Armacell Enterprise GmbH Échangeur de chaleur à flux expansible pour fontes de polymères
EP2796195A1 (fr) * 2013-04-22 2014-10-29 Fluitec Invest AG Réacteur tubulaire continu
EP2881154A1 (fr) * 2013-12-04 2015-06-10 Fluitec Invest AG Dispositif et procédé de vaporisation par détente
EP3081285A1 (fr) 2015-04-16 2016-10-19 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
EP3620230A1 (fr) 2018-09-07 2020-03-11 Fluitec Invest AG Dispositif d'un réacteur chimique et procédé
CN111375323A (zh) * 2018-12-28 2020-07-07 中国石油天然气股份有限公司 挡板式发泡器
CN111375323B (zh) * 2018-12-28 2022-02-25 中国石油天然气股份有限公司 挡板式发泡器
EP3800418A1 (fr) * 2019-10-01 2021-04-07 BITZER Kühlmaschinenbau GmbH Échangeur de chaleur, installation de réfrigération ou de chauffage doté d'un tel échangeur de chaleur
EP3932531A1 (fr) 2020-07-02 2022-01-05 Fluitec Invest AG Calorimètre à réactions continu
WO2022032401A1 (fr) * 2020-08-14 2022-02-17 Sulzer Management Ag Appareil d'alimentation en chaleur ou de dissipation de chaleur, pour la mise en œuvre de réactions et pour le mélange et la dispersion de milieux en écoulement

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