EP1522812B1 - Echangeur de chaleur à plaques pour le séchage d'un fluide gazeux - Google Patents

Echangeur de chaleur à plaques pour le séchage d'un fluide gazeux Download PDF

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Publication number
EP1522812B1
EP1522812B1 EP04023607A EP04023607A EP1522812B1 EP 1522812 B1 EP1522812 B1 EP 1522812B1 EP 04023607 A EP04023607 A EP 04023607A EP 04023607 A EP04023607 A EP 04023607A EP 1522812 B1 EP1522812 B1 EP 1522812B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
gas
plate
plates
stack
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
EP04023607A
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German (de)
English (en)
Other versions
EP1522812A2 (fr
EP1522812A3 (fr
Inventor
Peter Dipl.-Ing. Rehberg
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 Brazed PHE GmbH
Original Assignee
GEA WTT GmbH
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 GEA WTT GmbH filed Critical GEA WTT GmbH
Publication of EP1522812A2 publication Critical patent/EP1522812A2/fr
Publication of EP1522812A3 publication Critical patent/EP1522812A3/fr
Application granted granted Critical
Publication of EP1522812B1 publication Critical patent/EP1522812B1/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
    • 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
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • 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
    • F28D2021/0038—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for drying or dehumidifying gases or vapours

Definitions

  • the invention is in the field of plate heat exchangers for drying a gaseous medium, in particular air.
  • Gaseous media for example air
  • the gaseous medium usually has to fulfill certain properties for the production process, for example having a predetermined degree of purity or a minimum moisture content.
  • Plate heat exchangers are known from the prior art, which are used to dry a gaseous medium, for example compressed air, so that the gaseous medium used as a process medium has only a predetermined moisture content.
  • the gaseous medium is fed into the plate heat exchanger through an input port. Subsequently, the thus fed moist incoming gas stream flows through a gas-gas heat exchanger.
  • the gas-gas heat exchanger is formed in the plate heat exchanger in a portion of a stack of plates interconnected to form flow areas between the plates.
  • the incoming wet gas stream flows away from the input port and a dried feed gas stream, which can then be recycled to the production process, to an output port through separate flow areas in the plate stack.
  • the moist input gas stream and the dried starting gas stream flow in countercurrent, on the one hand to pre-cool the moist inlet gas stream.
  • the dried starting gas stream is heated by heat transfer from the moist input gas stream to the previously dried starting gas stream.
  • the moist input gas stream in this case passes from the gas-gas heat exchanger into a gas-coolant heat exchanger in the plate stack, which likewise has a plurality of flow regions between the plates of the stack.
  • the precooled input gas stream and a refrigerant flow countercurrently, so that the incoming wet gas stream is cooled, resulting in the subsequent convection of the moisture particles of the input gas stream, so that the input gas stream is dried.
  • the dried starting gas stream formed in this way flows via an overflow component from the outlet of the gas-coolant heat exchanger to the gas-gas heat exchanger, where it is reheated by absorbing heat from the incoming inlet gas stream.
  • the thus heated starting gas stream flows through the output port of the plate heat exchanger for further use.
  • the overflow component must also meet high requirements with regard to pressure resistance.
  • US 2003/0041619 A1 describes a device with an integrated gas drain and a cooling unit for removing moisture in various gases, especially natural gases.
  • US 3,797,565 discloses a cooled air dryer with a heat exchanger.
  • From the DE 43 42 598 A1 is a device for drying compressed air with a condenser for compressed air temperature control and a condensate discharge.
  • US 5,275,233 describes a device for removing moisture from hot compressed gas.
  • From the DE 197 37 205 A1 is a method for operating refrigerated air dryers out.
  • the temperature in the inlet region for the compressed air to be dried is measured and supplied to an electronic evaluation and switching unit, which controls a refrigerant circuit for a heat exchanger unit as a function of this temperature in a refrigerated air dryer.
  • From the DE 203 15 267 U1 is a device for cooling and drying of air, especially for refrigerant dryer of compressed air systems out.
  • the object of the invention is therefore to provide a plate heat exchanger for drying a gaseous medium, which allows a high pressurization under operating conditions and holds this state, so that the safety standards are guaranteed.
  • the invention includes the idea, in the plate heat exchanger for drying a gaseous medium, in particular air, which in a stack of plates comprises a gas-gas heat exchanger and a gas-refrigerant heat exchanger, a Matterströmbauteil in a flow connection between the outlet of the gas Coolant heat exchanger and the gas-gas heat exchanger by means of a stack of adjacent plates which are interconnected to form Studentsström Studen between the adjacent plates, wherein between facing side surfaces of the adjacent plates contact areas are formed, in which the facing Side surfaces are interconnected.
  • a direct contact is made between the facing side surfaces of the adjacent plates of the overflow component, wherein the contact may optionally be mediated by a suitable connection means.
  • An expedient embodiment of the invention provides that the adjacent plates are soldered together in the deflection member, whereby on the one hand a reliable solid connection of the adjacent plates is ensured. Moreover, in this way, for connecting the adjacent plates of the overflow component, the same manufacturing technology as used for connecting the plates of the stack in which the gas-gas heat exchanger and the gas-refrigerant heat exchanger are formed can be used.
  • the contact areas in the overflow component comprise edge contact areas in which, optionally mediated by a connecting material, edge portions of the facing side surfaces of the adjacent panels touch.
  • the contact areas in the overflow component comprise surface contact areas in which, optionally mediated by a connecting material in each case in a central region of the adjacent plates of a plate plane projecting portions of the facing side surfaces of the adjacent plates touch.
  • the pressure resistance of the overflow component can be optimized, since direct connections between the facing side surfaces distributed over the adjacent plates are produced at selectable intervals, which supports the use of higher pressures during operation of the plate heat exchanger.
  • the strength of the adjacent plates of the overflow component is improved in an advantageous embodiment of the invention in that the adjacent plates of the overflow component have an embossed surface structure at least in some areas.
  • the surface stability of the adjacent plates of the overflow component is optimized.
  • a space-saving arrangement of Matterströmbauteils in the formation of the plate heat exchanger is achieved in a preferred embodiment of the invention in that the Kochströmbauteil arranged on an outer plate of the stack of plates surface resting is. In this way, the shortest possible overflow connection between the outlet of the gas-refrigerant heat exchanger and the gas-gas heat exchanger is further promoted.
  • a preferred development of the invention provides that between the overflow component and the outer plate of the stack of plates, a portion of the overflow regions is formed. In this way, the stack of plates facing outer plate of Kochströmbauteils itself is bordered on both sides of overflow areas.
  • FIG. 1 shows a plate heat exchanger 1 for drying a gaseous medium, in particular air, in longitudinal section.
  • the plate heat exchanger 1 comprises a stack 2 of a plurality of plates 3, which are soldered together in the embodiment in the conventional manner for soldered plate heat exchanger, so that between the plurality of plates 3 a plurality of flow regions 4 are formed in channel form.
  • a gas-gas heat exchanger 6 is formed by means of the plurality of plates 3 and the flow areas 4.
  • a humid input gas flow 7 which is fed via an input port 8a, flows downwardly in the flow regions 4 in countercurrent to an upward-flowing output gas flow 9.
  • the moist incoming gas stream 7 flows between the plates 3 into a lower portion 10 of the plate heat exchanger 1, in which a gas-refrigerant heat exchanger 11 is formed.
  • a coolant 12 is fed via a coolant connection 13 between the plates 3, so that the coolant 12 flows upwards between the plates 3, ie counter to the downwardly flowing, moist input gas flow 7.
  • a coolant outlet 14 the coolant 12 leaves the plate heat exchanger 1 and is itself fed to a cooling.
  • the moist incoming gas stream 7 is cooled below the predetermined dew point for the respective gaseous medium, so that moisture fractions condense and are deposited in a separator 15 in the lower portion 10 of the plate heat exchanger 1. Via an outlet opening 16, the condensed moisture particles can then be removed.
  • the thus cooled and dried gaseous medium flows after the condensation process via an overflow 17 back into the gas-gas heat exchanger 6.
  • an overflow 18 is arranged in which overflow 19 are formed through which the dried starting gas flow becomes.
  • the Kochströmbauteil 18 is formed by means of a stack 20 of a plurality of plates 21, in which facing side surfaces are connected to each other by means of contact areas.
  • the contact areas comprise edge contact areas and / or area contact areas in which, optionally mediated by a suitable connecting means, for example solder, touch the facing side faces.
  • a suitable connecting means for example solder
  • the plate heat exchanger 1 may be lined internally with a suitable material, for example a plastic which is resistant to the gaseous medium to be dried.
  • moist compressed air can be dried, which is obtained in various manufacturing processes.
  • the dried compressed air or dried in other cases gaseous starting medium are heated before leaving the plate heat exchanger 1 through an output terminal 8b in the gas-gas heat exchanger 5 in the upward flow by heat transfer from the wet inlet gas stream 7, so that with the aid of the plate heat exchanger 1 a the process conditions can be returned with respect to a predetermined minimum temperature adapted, heated gas stream.

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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)
  • Drying Of Solid Materials (AREA)
  • Fuel Cell (AREA)

Claims (8)

  1. Echangeur thermique à plaques (1) pour le séchage d'un milieu gazeux, en particulier l'air, avec une pile (2) de plaques (3) qui sont reliées l'une avec l'autre pour former des zones d'écoulement (4) entre les plaques (3), étant donné que sont formés, dans une section (5) de la pile, un échangeur thermique gaz-gaz (6) dans lequel, pour assurer l'échange d'énergie thermique, un courant de gaz d'entrée humide (7) partant d'un raccord d'entrée (8a) et un courant de gaz de sortie séché (9) allant vers un raccord de sortie (8b) s'écoulent l'un à côté de l'autre à travers des zones d'écoulement séparées et, dans une autre section (10) de la pile, un échangeur thermique gaz-réfrigérant (11) dans lequel s'écoulent l'un à côté de l'autre, pour assurer le refroidissement, le courant de gaz d'entrée humide (7) et un réfrigérant (12) à travers d'autres zones d'écoulement séparées, et étant donné qu'est formée entre une sortie de l'échangeur thermique gaz-réfrigérant (11) et l'échangeur thermique gaz-gaz (6) une liaison d'écoulement (17) qui comprend un composant de trop-plein (18) afin de conduire le courant de gaz de sortie séché (9) par l'intermédiaire du composant de trop-plein (18) de la sortie de l'échangeur thermique gaz-réfrigérant (11) à l'échangeur thermique gaz-gaz (6), caractérisé en ce que le composant de trop-plein (18) est formé à l'aide d'une pile (20) de plaques avoisinantes (21) qui sont reliées l'une avec l'autre pour former des zones de trop-plein (19) entre les plaques avoisinantes (21), étant donné que sont formées des zones de contact entre des surfaces latérales orientées l'une vers l'autre des plaques avoisinantes (21).
  2. Echangeur thermique à plaques (1) selon la revendication 1, caractérisé en ce que les plaques avoisinantes (21) sont brasées l'une avec l'autre au niveau du composant de trop-plein (18).
  3. Echangeur thermique à plaques (1) selon la revendication 1 ou 2, caractérisé en ce que les zones de contact au niveau du composant de trop-plein (18) comprennent des zones de contact marginales dans lesquelles se touchent, au choix par l'intermédiaire d'un matériau de liaison, des sections marginales des surfaces latérales orientées l'une vers l'autre des plaques avoisinantes (21).
  4. Echangeur thermique à plaques (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les zones de contact au niveau du composant de trop-plein (18) comprennent des zones de contact marginales dans lesquelles se touchent, au choix par l'intermédiaire d'un matériau de liaison, chaque fois dans une zone centrale des plaques avoisinantes (21), des sections, qui font saillie d'un plan de plaque, des surfaces latérales orientées l'une vers l'autre des plaques avoisinantes (21).
  5. Echangeur thermique à plaques (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les plaques avoisinantes (21) du composant de trop-plein (18) présentent au moins dans des zones partielles une structure superficielle estampée.
  6. Echangeur thermique à plaques (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le composant de trop-plein (18) est disposé sur une plaque extérieure de la pile (2) de plaques (3) de manière à y reposer de manière plane.
  7. Echangeur thermique à plaques (1) selon la revendication 6, caractérisé en ce que le composant de trop-plein (18) est brasé sur la plaque extérieure de la pile (2) de plaques (3).
  8. Echangeur thermique à plaques (1) selon la revendication 6 ou 7, caractérisé en ce qu'une section des zones de trop-plein (19) est formée entre le composant de trop-plein (18) et la plaque extérieure de la pile (2) de plaques (3).
EP04023607A 2003-10-10 2004-10-04 Echangeur de chaleur à plaques pour le séchage d'un fluide gazeux Expired - Lifetime EP1522812B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10347880 2003-10-10
DE10347880A DE10347880B4 (de) 2003-10-10 2003-10-10 Plattenwärmetauscher zum Trocknen eines gasförmigen Mediums

Publications (3)

Publication Number Publication Date
EP1522812A2 EP1522812A2 (fr) 2005-04-13
EP1522812A3 EP1522812A3 (fr) 2007-11-21
EP1522812B1 true EP1522812B1 (fr) 2009-03-04

Family

ID=34306405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04023607A Expired - Lifetime EP1522812B1 (fr) 2003-10-10 2004-10-04 Echangeur de chaleur à plaques pour le séchage d'un fluide gazeux

Country Status (7)

Country Link
US (1) US7789128B2 (fr)
EP (1) EP1522812B1 (fr)
CN (1) CN100339674C (fr)
AT (1) ATE424542T1 (fr)
DE (2) DE10347880B4 (fr)
DK (1) DK1522812T3 (fr)
ES (1) ES2322584T3 (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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US20050189097A1 (en) * 2004-03-01 2005-09-01 The Boeing Company Formed sheet heat exchanger
ITPN20080042A1 (it) * 2008-05-20 2009-11-21 Parker Hiross Spa Essicatore di gas compresso a refrigerazione con scambiatori di calore perfezionati
EP2377596B9 (fr) * 2010-04-14 2016-04-13 Kaeser Kompressoren Se Dispositif de séchage à froid, notamment dispositif de séchage à froid à air comprimé, ainsi qu'échangeur de chaleur pour un dispositif de séchage à froid, notamment dispositif de séchage à froid à air comprimé
IT1403733B1 (it) * 2011-02-07 2013-10-31 Mta Spa Apparato per l'essiccazione di gas.
JP5773353B2 (ja) * 2011-02-15 2015-09-02 忠元 誠 熱交換器
JP6616115B2 (ja) * 2015-07-30 2019-12-04 株式会社マーレ フィルターシステムズ 熱交換器
JP6671170B2 (ja) 2015-12-28 2020-03-25 株式会社マーレ フィルターシステムズ 熱交換器
AT518082B1 (de) * 2016-03-31 2017-07-15 Gerhard Kunze Dr Klimatisierung durch Mehrphasen-Plattenwärmetauscher
IT201700119692A1 (it) * 2017-10-23 2019-04-23 Ceccato Aria Compressa S R L Scambiatore di calore perfezionato e impianto di essiccazione dell’aria utilizzante il suddetto scambiatore di calore
DE202019100507U1 (de) * 2019-01-29 2020-05-12 Akg Verwaltungsgesellschaft Mbh Vorrichtung zur Abkühlung und Trocknung von Luft
DE102019119124A1 (de) * 2019-07-15 2021-01-21 Bayerische Motoren Werke Aktiengesellschaft Kombinationswärmetauscher mit einem Chiller und einem inneren Wärmetauscher sowie Kühl-Kälte-Kreislaufsystem und Kraftfahrzeug mit einem solchen

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* 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

Also Published As

Publication number Publication date
ATE424542T1 (de) 2009-03-15
US7789128B2 (en) 2010-09-07
EP1522812A2 (fr) 2005-04-13
DE502004009072D1 (de) 2009-04-16
EP1522812A3 (fr) 2007-11-21
CN100339674C (zh) 2007-09-26
DE10347880B4 (de) 2007-10-31
US20080210411A1 (en) 2008-09-04
ES2322584T3 (es) 2009-06-23
DE10347880A1 (de) 2005-05-04
DK1522812T3 (da) 2009-07-06
HK1078925A1 (zh) 2006-03-24
CN1707211A (zh) 2005-12-14

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