EP0548604B1 - Echangeur de chaleur à plaques - Google Patents

Echangeur de chaleur à plaques Download PDF

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Publication number
EP0548604B1
EP0548604B1 EP92120520A EP92120520A EP0548604B1 EP 0548604 B1 EP0548604 B1 EP 0548604B1 EP 92120520 A EP92120520 A EP 92120520A EP 92120520 A EP92120520 A EP 92120520A EP 0548604 B1 EP0548604 B1 EP 0548604B1
Authority
EP
European Patent Office
Prior art keywords
plate
another
flow
inflow
medium
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
EP92120520A
Other languages
German (de)
English (en)
Other versions
EP0548604A1 (fr
Inventor
Horst Daschmann
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.)
Kelvion PHE GmbH
Babcock Borsig AG
Original Assignee
Balcke Duerr 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 Balcke Duerr AG filed Critical Balcke Duerr AG
Publication of EP0548604A1 publication Critical patent/EP0548604A1/fr
Application granted granted Critical
Publication of EP0548604B1 publication Critical patent/EP0548604B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
    • 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
    • F28F9/02—Header boxes; End plates
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators

Definitions

  • the invention relates to a plate heat exchanger for media carried in cocurrent or countercurrent.
  • Such plate heat exchangers are known from DE-C-4 100 940. They consist of shaped individual plates which are connected to one another to form a flow channel for the plate pairs forming a medium, which in turn are joined to form a plate stack and each form a flow channel for the other medium between them.
  • the inflow and outflow cross section of each flow channel are offset diagonally to one another in the main flow direction.
  • the inflow and outflow cross sections of the channels for the two media lie next to one another, but are offset from one another by half the height of the inflow and outflow cross sections of the channels.
  • the invention has for its object to develop a plate heat exchanger of the type described above in such a way that with complete separation of the media participating in the heat exchange and with low pressure loss guidance of the media, a space-saving and compact design results, which furthermore the use of similar modules for individual adaptation of the heat exchange surfaces and the materials to the respective conditions of use and, in addition to good accessibility for maintenance purposes, creates an easy exchange option for the modules for repair purposes.
  • the solution to this problem by the invention is characterized in that a plurality of plate stacks of the same type are arranged directly next to one another, that the inflow and outflow cross sections of each plate stack are separated from one another by a middle wall extending over the entire length of the stack, and that the middle walls of adjacent plate stacks are each covered by a ceiling wall are connected to a common collecting duct and that these collecting ducts are connected alternately and with inclusion of the inflow and outflow cross sections of the two end-side plate stacks with a common inflow and outflow connection piece for each of the two media.
  • This inventive design of a plate heat exchanger which can be operated in cocurrent or countercurrent results in a very space-saving and compact design, since the heat exchange surface is formed by a plurality of plate stacks of the same type which are arranged directly next to one another. This results in the smallest possible base area for the plate heat exchanger according to the invention, because there are no spaces between the individual plate stacks for supplying or removing the media participating in the heat exchange.
  • the number of plate stacks arranged side by side in the manner of modules makes it possible to easily adapt the size of the heat exchange surface to the respective requirements.
  • each plate stack consists of shaped individual plates, which are connected to each other to form pairs of plates, which in turn are assembled to form a plate stack
  • the heat exchanger according to the invention can be adapted to the operating conditions in a simple and inexpensive manner by using appropriate materials or coating the individual plates, so that the The plate heat exchanger of the invention is also used, for example, for aggressive media or media loaded with solid particles can be. Since the one medium is guided in the flow channels, which are created by the formation of plate pairs, and the channels for the other medium are created by connecting the plate pairs to form a plate stack, there is a slip-free separation of the media participating in the heat exchange, which in particular results in pollutant emissions as a result from leaks or solid matter transfers.
  • the plate heat exchanger according to the invention Since the media guided in cocurrent or in countercurrent to one another are fed without deflection to the plate stacks arranged next to one another, the plate heat exchanger according to the invention operates with low pressure losses and with relatively low gas velocities, and without drives and moving parts, so that no additional noise emissions are generated. Even when installing a cleaning system that may be required, normal sound insulation without a complex housing of the plate heat exchanger is sufficient.
  • modules of the same type and a maximum of two different individual plates enables inexpensive production and simple assembly;
  • it facilitates the adaptation of the heat exchange surface to the respective operating conditions, because the plate heat exchanger according to the invention can be varied particularly easily with regard to its heat exchange capacity, on the one hand by changing the number of individual plates joined to form a plate stack and on the other hand by changing the number of plate stacks arranged next to one another.
  • the collecting duct results in favorable inflow and outflow conditions of the media participating in the heat exchange to the heat exchange surface formed by the plate stack. Since the central and ceiling walls connected to common collecting channels can be removed without problems, there is good access to the plate stacks for maintenance and repair purposes, with repair being facilitated in that complete modules can be exchanged. In addition to loss-free flow control and good accessibility, the collecting channels formed by central and ceiling walls also provide the possibility of installing any cleaning device that may be required.
  • This also has the advantage that the cleaning process can run in the direction of flow and that there is the possibility of passing the cleaning agent, for example air, superheated steam or water, vertically from above through the plate stack, so that no problems arise when collecting the cleaning medium contaminated with residues .
  • the cleaning agent for example air, superheated steam or water
  • the plate-type heat exchanger designed according to the invention leaves several options for supplying and removing those participating in the heat exchange Media too.
  • the inflow connection and the outflow connection for each medium can either be arranged at the same end of the adjacent stack of plates or at the other end of the adjacent stack of plates. The supply and removal of each medium can thus either take place on the same side of the plate heat exchanger or lead to a crossing of the media within the plate heat exchanger, regardless of whether the two media are in cocurrent or countercurrent to each other and whether the supply is from below or above.
  • the invention proposes to design the ceiling walls of the collecting ducts to run obliquely.
  • FIG. 1 The embodiment of a plate heat exchanger shown schematically in FIG. 1 shows in perspective a plate stack S composed of a plurality of shaped individual plates 1, which are each connected to one another to form a plate pair P.
  • Each individual plate 1 comprises a base 11 which lies in a different plane than the longitudinal edges 12.
  • each individual plate 1 is each with a Contact surface 13 formed, which is offset in height from the longitudinal edges 12.
  • the offset between the contact surface 13 and the associated longitudinal edge 12 is twice as large as the offset between the longitudinal edges 12 and the bottom 11.
  • the bottom 11 is therefore located in the middle between the plane of the longitudinal edges 12 and the plane of the contact surfaces 13.
  • transverse edges 14a and 14b are approximately half in the exemplary embodiment in the plane of the longitudinal edges 12 or in the plane of the contact surfaces 13.
  • transverse edges 14a and 14b result, perpendicular to the surface of the base 11 are offset from one another by the same amount as the planes in which the longitudinal edges 12 on the one hand and the contact surfaces 13 on the other hand. 1 clearly shows that the transverse edges 14a and 14b are diagonally opposite one another.
  • FIG. 1 shows five complete plate pairs P, a single plate 1 being arranged on the uppermost plate pair, which is also connected to the plate plate P shown at a distance from the uppermost single plate 1.
  • the plate pairs P are connected in the area of the contact surfaces 13 to form the plate stack S, superimposed channels result for the two media participating in the heat exchange. While one medium flows in the flow channels, which are each formed by the plate pairs P, the other medium flows in the flow channels, which result from the joining of the plate pairs P to the plate stack S.
  • the transverse edges lying in the plane of the longitudinal edges 12 14a of the individual plates 1 form the inflow cross section Z 1 and the outflow cross section A 1 of the flow channels for the medium flowing between the plate pairs P.
  • Fig. 1 which shows a counterflow heat exchanger, shows that due to the diagonal arrangement of the inlet and outlet openings, the inflow cross sections Z1 and Z2 for one medium next to the outflow cross sections A2 and A1 for the other medium, respectively offset by half a height of a pair of plates P.
  • the plate heat exchanger shown in perspective in FIG. 2 has two media I and II flowing through it in direct current, medium I being, for example, the heat-emitting medium and medium II being the heat-absorbing medium.
  • the heat exchange between the two media I and II takes place in plate stacks S which, according to FIG. 1, are formed from individual plates combined into plate pairs. These plate stacks S are arranged directly next to one another in such a way that their inflow cross sections Z 1, Z 2 are perpendicularly above the outflow cross sections A 1, A 2, as the section in FIG. 2 clearly shows.
  • the inflow and outflow cross-sections belonging to one of the two media I or II are diagonally offset from one another, as can again be seen in FIG. 1.
  • the inflow and outflow cross sections Z1, Z2 and A1, A2 of each plate stack S are separated from each other by a central wall 21 which extends over the entire length of the plate stack S.
  • the middle walls 21 of adjacent plate stacks S are each connected to a common collecting duct 2 by a top wall 22.
  • these collecting channels 2 represent a supply or discharge of the medium I or II to or from respectively adjacent two plate stacks S.
  • the plate heat exchanger designed as a direct current heat exchanger according to FIG. 2, the medium I, which is shown by a dash-dotted arrow, supplied from above, namely through an inflow nozzle 3 1.
  • This inflow nozzle 3 1 is connected to those collecting channels 2 which open above the inflow cross sections Z 1 of the plate stack S.
  • the streams of the medium I divide and get into the collecting channels 2 formed below the plate stack S, which lead the medium I to the outflow nozzle 4 1, which is arranged in the embodiment according to FIG. 2 below the inflow nozzle 3 1.
  • the heat-absorbing medium II enters the inflow nozzle 32 from above and arrives from here into collecting channels 2, which lead to the inflow cross sections Z2 of the plate stack S.
  • the partial flows of the medium 2 are divided in the plate stacks S and arrive in collecting channels 2, which in turn lead to an outflow nozzle 42, which is formed vertically below the inflow nozzle 32.
  • the top walls 22 of the collecting channels 2 are designed to run obliquely, as can clearly be seen in the upper part of FIG. 2.
  • the in the embodiment 2 realized DC circuit of the two media I and II participating in the heat exchange enables the generation of a surface temperature on the individual plates, which avoids the caking of solids when the media I and II enter the plate stack S and falls below the dew point. However, should deposit products of the media arise, they can be collected and discharged via the collecting channels 2 and the outlet connections 4 1 and 4 2 below.
  • the plate heat exchanger shown in Fig. 2 is accordingly particularly well suited for a recuperative heat exchange in connection with flue gas cleaning systems.
  • the plate heat exchanger in Fig. 3 is designed as a countercurrent heat exchanger, in which the heat-emitting medium I according to the dash-dotted arrows from above enters the inlet nozzle 3 1 and from this inlet nozzle 3 1 enters the collecting channels 2 connected to it.
  • the heat-emitting medium I also divides in this case and emerges from the spaced-apart outflow cross sections A 1 of the plate stack S, namely in the underlying collection channels 2, which in turn are connected to the outflow nozzle 4 1 lying on the opposite side.
  • the heat-absorbing medium II enters the inflow nozzle 32 from below and passes through the corresponding collecting channels 2 to the inflow cross sections Z2 lying on the underside of the plate stack S. After the heating of the medium II in the plate stacks S, it emerges from the outflow cross sections A2; it passes into the collecting channels 2 above these outflow cross sections A2, which are connected to the outflow connection 42.
  • the inflow and outflow of the heat-absorbing medium II is indicated in Fig. 3 by solid arrows.
  • both plate heat exchangers in FIGS. 2 and 3 show that despite a very compact and space-saving design, there is good access to the plate stacks S, which not only facilitates the installation of cleaning devices that may become necessary, but also good access to repairs or Maintenance work enabled.
  • both representations show that the flow guidance of the two media I and II takes place in the shortest possible way and without any deflections causing pressure loss, so that the plate heat exchangers described, despite their compactness, are highly efficient.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Fuel Cell (AREA)

Claims (4)

  1. Echangeur de chaleur à plaques pour des fluides guidés selon des courants de même sens ou à contre-courant, composé de plaques individuelles à empreintes de forme, qui sont reliées entre-elles pour former des paires de plaques formant un canal d'écoulement pour l'un des fluides, ces paires de plaques étant quant à elles rassemblées en un empilement de plaques en formant entre chacune d'entre-elles un canal d'écoulement pour l'autre fluide, la section transversale d'entrée et la section transversale de sortie de chaque canal d'écoulement étant décalées diagonalement dans la direction principale d'écoulement, et les sections transversales d'entrée et de sortie des canaux pour les deux fluides étant situées côte à côte, en étant toutefois décalées les unes par rapport aux autres de la moitié de la hauteur de la section d'entrée ou de la section de sortie des canaux,
    caractérisé en ce que plusieurs empilements de plaques (S) de même type sont disposés directement côte à côte,
    en ce que les sections transversales d'entrée et de sortie (Z1, Z1, A1, A2) de chaque empilement de plaques (S), sont séparées les unes des autres par une paroi médiane (21) s'étendant sur toute la longueur d'empilement,
    en ce que les parois médianes (21) d'empilements de plaques (S) voisins sont reliées, pour à chaque fois deux empilements voisins, par une paroi de recouvrement (22) formant un canal de collecte (2) commun,
    et en ce que ces canaux de collecte (2) sont reliés, alternativement et en tenant compte des sections transversales d'entrée ou de sortie des deux empilements de plaques (S) d'extrémité, à un raccord commun d'entrée et à un raccord commun de sortie (3₁, 4₁, 3₂, 4₂) pour chacun des deux fluides (I, II).
  2. Echangeur de chaleur à plaques selon la revendication 1, caractérisé en ce que le raccord d'entrée (3₁, 3₂) et le raccord de sortie (4₁, 4₂) pour chaque fluide (I, II) sont disposés à la même extrémité des empilements de plaques (S) disposés côte à côte.
  3. Echangeur de chaleur à plaques selon la revendication 1, caractérisé en ce que le raccord d'entrée (3₁, 3₂) et le raccord de sortie (4₁, 4₂) pour chaque fluide (I, II) sont disposés respectivement à une autre extrémité des empilements de plaques (S) disposés côte à côte.
  4. Echangeur de chaleur à plaques selon l'une au moins des revendications 1 à 3, caractérisé en ce que les parois de recouvrement (22) des canaux de collecte (2) sont réalisées de façon à s'étendre de manière oblique.
EP92120520A 1991-12-20 1992-12-02 Echangeur de chaleur à plaques Expired - Lifetime EP0548604B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9115813U DE9115813U1 (de) 1991-12-20 1991-12-20 Plattenwärmetauscher
DE9115813U 1991-12-20

Publications (2)

Publication Number Publication Date
EP0548604A1 EP0548604A1 (fr) 1993-06-30
EP0548604B1 true EP0548604B1 (fr) 1994-09-28

Family

ID=6874438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92120520A Expired - Lifetime EP0548604B1 (fr) 1991-12-20 1992-12-02 Echangeur de chaleur à plaques

Country Status (7)

Country Link
US (1) US5271459A (fr)
EP (1) EP0548604B1 (fr)
AT (1) ATE112385T1 (fr)
DE (2) DE9115813U1 (fr)
DK (1) DK0548604T3 (fr)
ES (1) ES2065120T3 (fr)
RU (1) RU2076295C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104006683A (zh) * 2014-05-01 2014-08-27 铜陵钱谊化工设备有限责任公司 一种板式换热器

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DE9115813U1 (de) * 1991-12-20 1992-02-20 Balcke-Dürr AG, 4030 Ratingen Plattenwärmetauscher
NL9301439A (nl) * 1993-08-19 1995-03-16 Eleonoor Van Andel Warmtewisselaar en werkwijze voor het vervaardigen daarvan.
US6082445A (en) * 1995-02-22 2000-07-04 Basf Corporation Plate-type heat exchangers
NL1000706C2 (nl) * 1995-06-30 1996-12-31 Level Energietech Bv Warmtewisselaar met verbeterde configuratie.
US5660228A (en) * 1995-12-12 1997-08-26 Altech Energy Modular air-to-air heat exchanger
US5823249A (en) * 1997-09-03 1998-10-20 Batchelder; John Samual Manifold for controlling interdigitated counterstreaming fluid flows
RU2188374C1 (ru) * 2000-11-30 2002-08-27 Федеральное государственное унитарное предприятие Российского космического агентства "Опытное конструкторское бюро "Факел" Способ изготовления пластинчатого теплообменника
RU2208753C1 (ru) * 2001-11-02 2003-07-20 Черных Владимир Григорьевич Пластинчатый теплообменник
US6622519B1 (en) * 2002-08-15 2003-09-23 Velocys, Inc. Process for cooling a product in a heat exchanger employing microchannels for the flow of refrigerant and product
US7014835B2 (en) * 2002-08-15 2006-03-21 Velocys, Inc. Multi-stream microchannel device
US6969505B2 (en) * 2002-08-15 2005-11-29 Velocys, Inc. Process for conducting an equilibrium limited chemical reaction in a single stage process channel
US6851171B2 (en) 2002-11-27 2005-02-08 Battelle Memorial Institute Method of fabricating multi-channel devices and multi-channel devices therefrom
US20050133204A1 (en) * 2003-12-17 2005-06-23 Renewaire, Llc Energy recovery ventilator
US8747805B2 (en) * 2004-02-11 2014-06-10 Velocys, Inc. Process for conducting an equilibrium limited chemical reaction using microchannel technology
PL1738819T3 (pl) 2005-06-17 2011-03-31 Bd Heat Recovery Inc Urządzenie do katalitycznego oczyszczania gazów wylotowych
NL1030270C2 (nl) * 2005-10-26 2007-04-27 Level Holding Bv Werkwijze en inrichting voor het vervaardigen van een warmtewisselaar.
JP5145718B2 (ja) * 2006-02-03 2013-02-20 株式会社デンソー 熱交換器
GB2450760A (en) * 2007-07-06 2009-01-07 Eltek Energy Ab Plate stack for use in a heat exchanger
NL2012548B1 (nl) * 2014-04-02 2016-02-15 Level Holding Bv Recuperator, waarvan de warmtewisselkanalen zich dwars op de lengterichting van het huis uitstrekken.
WO2022007296A1 (fr) * 2020-07-07 2022-01-13 山东贝诺冷却设备股份有限公司 Dispositif de dissipation de vapeur et tour de refroidissement

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Publication number Priority date Publication date Assignee Title
CN104006683A (zh) * 2014-05-01 2014-08-27 铜陵钱谊化工设备有限责任公司 一种板式换热器

Also Published As

Publication number Publication date
DK0548604T3 (da) 1995-01-09
RU2076295C1 (ru) 1997-03-27
US5271459A (en) 1993-12-21
ES2065120T3 (es) 1995-02-01
ATE112385T1 (de) 1994-10-15
DE9115813U1 (de) 1992-02-20
EP0548604A1 (fr) 1993-06-30
DE59200569D1 (de) 1994-11-03

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