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WO1996006320A1 - Echangeur de chaleur a plaques pour substances liquides et gazeuses - Google Patents

Echangeur de chaleur a plaques pour substances liquides et gazeuses Download PDF

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Publication number
WO1996006320A1
WO1996006320A1 PCT/DE1995/001175 DE9501175W WO9606320A1 WO 1996006320 A1 WO1996006320 A1 WO 1996006320A1 DE 9501175 W DE9501175 W DE 9501175W WO 9606320 A1 WO9606320 A1 WO 9606320A1
Authority
WO
WIPO (PCT)
Prior art keywords
plates
plate
heat exchanger
perforations
type heat
Prior art date
Application number
PCT/DE1995/001175
Other languages
German (de)
English (en)
Other versions
WO1996006320B1 (fr
Inventor
Michael Rehberg
Original Assignee
Michael Rehberg
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 Michael Rehberg filed Critical Michael Rehberg
Publication of WO1996006320A1 publication Critical patent/WO1996006320A1/fr
Publication of WO1996006320B1 publication Critical patent/WO1996006320B1/fr

Links

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
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
    • 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
    • F28D9/0043—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 plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—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 plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both 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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/10—Arrangements for sealing the margins

Definitions

  • the invention relates to an elate heat exchanger which consists of a stack of sheet metal plates welded together, preferably made of stainless steel, which are embossed with a profiling and are rotated by 180 ° in their plane with respect to adjacent sheets and which have symmetrically arranged media passage openings.
  • the profiles on both sides keep the plates in the stack at a distance, so that two media can flow between them in the counterflow principle without mixing.
  • Welded plate heat exchangers are particularly suitable for refrigeration systems and for systems in which high pressures occur and in which a medium consists of steam.
  • Plate heat exchangers are known from DE-PS 615 356. It provided that ulcanized rubber strips secure the distance between the plates and at the same time seal the flow channels between the plates.
  • ulcanized rubber strips secure the distance between the plates and at the same time seal the flow channels between the plates.
  • DE-AS 22 07 756 is based on the task of further reducing the thickness of the plates without increasing the flow resistance and improving their resistance to pressure differences in the heat-exchanging media. To this end were at an acute angle to the longitudinal axis of the plates ribs impressed with ge t rapezförmigem cross-section in the heat exchanging surfaces, which are located on the other side as grooves with the same cross-section. By alternately stacking the plates rotated by 180 ° in their plane, the grooves of one plate cross over the ribs of the other, thereby supporting them. The flow is only insignificantly impeded by this arrangement, only its turbulence increases, which favors the heat transfer.
  • DE-PS 22 46 031 the points of contact between the grooves of one to the ribs of the other plate can be optimized such that a more uniform distribution of the forces is achieved.
  • DE-PS 29 48 686 raises the problem that when a hot medium is used, the rubber sealing rings arranged between the plates are exposed to an excessive thermal load, which considerably shortens their service life. To prevent this, it is proposed, among other things, to replace the sealing ring with a weld seam sealing the flow channel.
  • DE-0S 33 32 159 also provides for welding; namely, the 0.7 mm thick plates should be welded with 3 mm thick spacer rings arranged around the media passage openings and with spacer elements of equal thickness arranged on the circumference by means of lasers or electrons.
  • the plates are stacked so that the back of one plate is opposite the front of the adjacent plate. Seals are inserted into the beads embossed around the media passage openings and on the circumference.
  • DE-PS 36 00 656 provides that the touching areas of the beads of each pair of plates are welded together.
  • DE-OS 29 48 586 and DE-OS 40 20 735 are shaped profilings waves ⁇ become familiar with the same size in cross-section wave crests and wave troughs, which propagate at an acute angle to the longitudinal axis of the plate.
  • these wave-shaped profiled plates can also be sealed with profiles which are fastened between adjacent plates by soldering or welding.
  • heat-exchanger plates profiled in this way are coated on one side with copper, in order to then solder them on top of one another under the action of heat. Spacer rings are arranged around the media openings and soldered to the plates.
  • the soldered plate heat exchangers have the disadvantage that when using aggressive media, the solder is attacked and gradually dissolved, as a result of which the plate heat exchangers become leaky and therefore unusable. Therefore, plate heat exchangers soldered to copper cannot be used in refrigeration systems with ammonia. Ammonia is becoming increasingly important for refrigeration plants because fluorocarbons are no longer used because of their harmful influence on the earth's ozone layer.
  • a disadvantage that all known plate heat exchangers have is that they have to be clamped with tie rods between stable pressure plates in order to withstand the high pressures of 40 bar and more and the stresses caused by high temperature differences; because the plates are basically only connected around the circumference and around the media through openings.
  • the invention has for its object to facilitate the assembly of the plates in a stack, to increase the strength of their heat-exchanging areas so that complex pressure plates and tie rods can be omitted, and to increase the flow resistance in the gas-carrying flow channels by preventing the formation of bubbles reduce and thereby improve the heat transfer.
  • the heat exchanger plates are perforated at selected points of contact of their profiles, that the planes are embossed by two of the media passage openings arranged symmetrically to the longitudinal axis of the plates up to the height of the profiles on each side of a plate Edge of each plate is set up at an angle of less than 90 ° in a bowl shape and that finally all touching areas of the plates, in particular around the perforations and around the media passage openings and the bowl-shaped edges, are welded by laser.
  • the perforations can be punched in according to a predetermined pattern before welding, but they can also be made with the laser beam. They should have a diameter of 0.2 to 2 mm, preferably 0.5 to 1 mm. Due to the bowl-shaped edge, the stacked plates center themselves when stacked.
  • each plate After placing each plate, it is welded to the underlying plate using a laser. Due to the intended shape of the plate, there is no need for spaced internals and seals between the plates, which could offer aggressive media attack surfaces.
  • the plate heat exchangers according to the invention have a significantly improved corrosion behavior even with aggressive media.
  • the welding of the contact points of the profiles of two plates has the effect that the heat-exchanging areas are not only supported by supports, but are also firmly clamped to the supports. As a result, they have less deflection under the same load. As a result, it is not necessary to clamp the welded plate stack with tie rods between pressure plates.
  • the plate heat exchangers with the proposed changes can also be used at higher pressures.
  • the perforations in the area of the contacting profiles of two plates effectively prevent the formation of bubbles because they are located at the most distant points, measured from the center line of the flow channels, where the formation of bubbles is most likely and because they connect to the same Create medium that has a lower pressure in the direction of flow.
  • the weld seam around each perforation prevents the media from escaping into other channels that are not intended for them.
  • the heat exchangers according to the invention are not subject to any size restrictions.
  • the heat required for soldering is supplied in an oven, the size of which also limits the size of the stack of plates.
  • the amount of heat that can be used is limited by the plate material used and can only produce the soldering temperature required in its interior up to a certain size of the plate stack. In contrast, when welding by laser, the plates are welded individually, so that these problems do not occur.
  • Fig.l shows welded heat exchanger plates that are rotated against each other in their plane by 180 °
  • FIG. 3 shows an enlarged section A ⁇ of the heat exchanger plates shown in FIG. 1.
  • the heat exchanger plates are set up in the shape of a bowl
  • Edge 1 welded around the media through openings 3 on the planes 2 raised on both sides relative to the plane of the plate and welded around the perforations 5 at the profilings 4 in contact.

Landscapes

  • 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)

Abstract

L'invention concerne un échangeur de chaleur à plaques pour substances liquides et gazeuse, qui comprend une pile de plaques identiques dont chacune est tournée de 180° dans son plan par rapport à des plaques adjacentes et dont les surfaces d'échange de chaleur présentent des structures. Cet échangeur de chaleur à plaques se caractérise en ce que les plaques d'échange de chaleur sont perforées en certains points de contact des structures de deux plaques. Les plans situés autour de chacun de deux orifices prévus pour le passage des substances et placés de manière symétrique, sont matricés en relief de chaque côté d'une plaque, de la même hauteur que les structures. Le bord (1) de chaque plaque est réalisé en forme d'auge à un angle inférieur à 90°. Toutes les zones des plaques en contact, notamment celles qui entourent les perforations et les orifices de passage des substances, ainsi que les bords en auge, sont soudés au laser. L'invention concerne également un échangeur de chaleur à plaques décrit selon la revendication 1 se caractérisant en ce que les perforations présentent un diamètre compris entre 0,2 et 2 mm, de préférence entre 0,5 et 1 mm.
PCT/DE1995/001175 1994-08-24 1995-08-22 Echangeur de chaleur a plaques pour substances liquides et gazeuses WO1996006320A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944431413 DE4431413C2 (de) 1994-08-24 1994-08-24 Plattenwärmetauscher für flüssige und gasförmige Medien
DEP4431413.2 1994-08-24

Publications (2)

Publication Number Publication Date
WO1996006320A1 true WO1996006320A1 (fr) 1996-02-29
WO1996006320B1 WO1996006320B1 (fr) 1996-03-14

Family

ID=6527340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1995/001175 WO1996006320A1 (fr) 1994-08-24 1995-08-22 Echangeur de chaleur a plaques pour substances liquides et gazeuses

Country Status (2)

Country Link
DE (1) DE4431413C2 (fr)
WO (1) WO1996006320A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6666263B2 (en) 2001-06-23 2003-12-23 Behr Gmbh & Co. Device for cooling a vehicle appliance, in particular a battery or a fuel cell
CN101932897B (zh) * 2007-12-21 2013-01-30 阿尔法拉瓦尔股份有限公司 热交换器

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19628390C1 (de) * 1996-07-13 1997-11-13 Balcke Duerr Gmbh Plattenwärmetauscher
DE19639115C2 (de) * 1996-09-24 2003-08-07 Behr Gmbh & Co Plattenförmiges Wärmeübertragerelement
DE19849449C2 (de) * 1998-10-28 2003-05-28 Hanf Carl Elino Ind Ofenbau Verfahren und Anlage zum Verbinden von Wärmetauscherteilen
DE19906180C2 (de) * 1999-02-05 2003-02-06 Peter Rehberg Plattenwärmeübertrager für Warmwasserbereitung und -speicherung
JP2001116483A (ja) * 1999-10-22 2001-04-27 Ebara Corp プレート熱交換器
DE10220532A1 (de) 2001-05-11 2002-11-14 Behr Gmbh & Co Wärmetauscher
DE20114850U1 (de) * 2001-09-07 2003-01-16 Behr Gmbh & Co, 70469 Stuttgart Wärmetauscher
FR2846733B1 (fr) * 2002-10-31 2006-09-15 Valeo Thermique Moteur Sa Condenseur, notamment pour un circuit de cimatisation de vehicule automobile, et circuit comprenant ce condenseur
DE10304692A1 (de) * 2003-02-06 2004-08-19 Modine Manufacturing Co., Racine Gewellter Einsatz für ein Wärmetauscherrohr
JP2011106764A (ja) * 2009-11-19 2011-06-02 Mitsubishi Electric Corp プレート式熱交換器及びヒートポンプ装置
EP2886246A1 (fr) 2013-12-19 2015-06-24 MAHLE Behr France Hambach S.A.S Dispositif d'assemblage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL78468C (fr) *
GB1318182A (en) * 1969-03-08 1973-05-23 Coats Ltd J P Heat exchanger element
GB2005398A (en) * 1977-10-05 1979-04-19 Alfa Laval Ab Plate Heat Exchangers
GB2052722A (en) * 1979-06-18 1981-01-28 Borg Warner Multiple fluid heat exchanger

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE615356C (de) * 1930-11-08 1935-07-03 Eduard Ahlborn Akt Ges Waermeaustauschplatte mit ueber die Plattenoberflaeche verlaufenden rippenartigen, mit einer Umrahmung zusammenhaengenden Fuehrungsteilen
US3151675A (en) * 1957-04-02 1964-10-06 Lysholm Alf Plate type heat exchanger
SE353954B (fr) * 1971-02-19 1973-02-19 Alfa Laval Ab
SE356123B (fr) * 1971-10-08 1973-05-14 Alfa Laval Ab
SU506329A3 (ru) * 1972-10-04 1976-03-05 Альфа-Лаваль Аб, (Фирма) Пластина теплообменника
JPS52138743A (en) * 1976-05-17 1977-11-19 Hisaka Works Ltd Plate evaporator
DE2948586A1 (de) * 1979-12-03 1981-06-25 Alfa-Laval AB, 14700 Tumba Plattenwaermeaustauscher
GB2126703B (en) * 1982-09-07 1986-07-09 Apv Int Ltd Plate heat exchanger
GB2128726B (en) * 1982-10-21 1986-01-08 Apv Co Ltd Heat exchanger plate
DE3600656A1 (de) * 1986-01-11 1987-07-16 Gea Ahlborn Gmbh & Co Kg Waermeaustauscher
DE4009556C2 (de) * 1990-03-24 1994-07-07 Schmid Christoph Wärmeübertrager
DE4020735A1 (de) * 1990-06-29 1992-01-02 Schmidt Bretten W Gmbh Plattenwaermeaustauscher
DE4037969A1 (de) * 1990-11-29 1992-06-04 Schmidt Bretten W Gmbh Plattenwaermeaustauscher
DE4039292A1 (de) * 1990-12-08 1992-06-11 Gea Luftkuehler Happel Gmbh Verfahren zum herstellen eines waermetauschers und vorrichtung zur durchfuehrung des verfahrens
AT395354B (de) * 1991-03-12 1992-12-10 Widschwendter Arnulf Plattenwaermetauscher
FR2697621B1 (fr) * 1992-11-03 1995-01-13 Ciat Sa Echangeur de chaleur à plaques.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL78468C (fr) *
GB1318182A (en) * 1969-03-08 1973-05-23 Coats Ltd J P Heat exchanger element
GB2005398A (en) * 1977-10-05 1979-04-19 Alfa Laval Ab Plate Heat Exchangers
GB2052722A (en) * 1979-06-18 1981-01-28 Borg Warner Multiple fluid heat exchanger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
U.S. ARMY MATERIAL DEVELOPMENT AND READINESS COMMAND: "computer-controlled laser welding", NTIS TECHNICAL NOTES, SPRINGFIELD,VA.,USA *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6666263B2 (en) 2001-06-23 2003-12-23 Behr Gmbh & Co. Device for cooling a vehicle appliance, in particular a battery or a fuel cell
CN101932897B (zh) * 2007-12-21 2013-01-30 阿尔法拉瓦尔股份有限公司 热交换器
US8939195B2 (en) 2007-12-21 2015-01-27 Alfa Laval Corporate Ab Heat exchanger

Also Published As

Publication number Publication date
DE4431413A1 (de) 1996-02-29
DE4431413C2 (de) 2002-10-10

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