EP1394491B1 - Plattenwärmetauscher - Google Patents
Plattenwärmetauscher Download PDFInfo
- Publication number
- EP1394491B1 EP1394491B1 EP03017674A EP03017674A EP1394491B1 EP 1394491 B1 EP1394491 B1 EP 1394491B1 EP 03017674 A EP03017674 A EP 03017674A EP 03017674 A EP03017674 A EP 03017674A EP 1394491 B1 EP1394491 B1 EP 1394491B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plates
- heat exchanger
- plate heat
- uneven
- ducts
- 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
Links
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000004075 alteration Effects 0.000 claims description 2
- 238000007373 indentation Methods 0.000 claims 1
- 238000001704 evaporation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
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
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
- F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
Definitions
- the present invention relates to a plate heat exchanger, particularly but not exclusively useful for condensing and evaporating refrigerating fluids.
- plate heat exchangers are devices used to transfer heat energy from one fluid to another and are constituted by a plurality of mutually facing metal plates shaped so as to form, in the spaces between two adjacent plates, a corresponding plurality of passage circuits for the fluids.
- the plates are usually rectangular, are commonly obtained by pressing and have appropriate corrugations, substantially in the central region, and generally have four openings at their corners.
- the corrugations are designed to stiffen the plates and to improve heat exchange, while the openings are designed to provide the ducts for the distribution and recovery of the fluids.
- the plates are sealed at their perimeter and at their input and output ducts by means of gaskets or by welding and/or braze welding, so as to prevent the escape of the fluids from the respective ducts and from the circuits formed between the facing plates.
- Operation of plate heat exchangers consists in producing the alternating flow, in the passage circuits, of a refrigerating fluid, which evaporates or condenses, and of a heat transfer fluid, which becomes cooler or warmer.
- EP-1094291 discloses a plate heat exchanger having a combination of features as set forth in the pre-characterizing portion of the appended claim 1.
- the aim of the present invention is to provide a plate heat exchanger with improved performance with respect to exchangers currently in use while maintaining a low production cost and achieving high reliability and durability.
- the plate heat exchanger generally designated by the reference numeral 1, comprises a plurality of mutually facing plates 2 and generally at least two ducts, an input duct 3a and an output duct 3b, for a respective fluid.
- the plates 2 are coupled hermetically to each other at a substantially peripheral portion 4 and at the ducts 3 a and 3b by braze welding.
- Each plate 2 has, as shown more clearly in Figure 2 , a main corrugation arranged in a herringbone pattern, which is adapted to increase and facilitate the exchange of heat among passage circuits formed between two adjacent plates 2.
- At least one of the plates 2 has at least one face that comprises at least one uneven portion 5.
- Said portion 5 is uneven thanks to the presence of microengravings and/or microgrooves and/or microindentations.
- each plate 2 has at least one completely uneven face.
- the adjacent plates 2 are assembled so that their completely or partially uneven faces form at least the ducts for the refrigerating fluid.
- the uneven portion 5 of the plates 2 is obtained by laser alteration.
- microengravings and/or microgrooves and/or microindentations on the exchange surface in fact increases the area of the exchange surface, increases the turbulence of the fluid in contact with the exchange surface, facilitates the drainage of the liquid along the exchange surface in condensation processes and bubble nucleation the evaporation processes.
- the materials used may be any according to requirements.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Fuel Cell (AREA)
Claims (3)
- Plattenwärmetauscher (1), umfassend eine Mehrzahl von einander zugewandten Platten (2), die an mindestens einem im wesentlichen an der Außenseite befindlichen Bereich (4) hermetisch gekoppelt sind und mindestens zwei getrennte Kreisläufe für mindestens zwei Flüssigkeiten bilden, wobei jede aus der Mehrzahl von Platten (2) Zugangsöffnungen besitzt, die Einlaßkanäle (3a) und Auslaßkanäle (3b) für die mindestens zwei Flüssigkeiten vorsehen, wobei die Platten (2) eine Hauptriffelung für erhöhten Wärmeaustausch unter den zwischen benachbarten Platten (2) gebildeten Kreisläufen enthalten, worin die Hauptriffelung in einem Fischgrätenmuster angeordnet ist, und worin die Mehrzahl von Platten (2) miteinander durch Hartlöten an dem an der Außenseite befindlichen Bereich (4) und an den Kanälen (3a, 3b) verbunden sind, dadurch gekennzeichnet, daß mindestens ein Bereich (5) von mindestens einer Fläche von mindestens einer aus der Mehrzahl von Platten (2) uneben ist, dank des vorhandenseins von Mikrogravierungen, Mikroriffelungen und/oder Mikroeinkerbungen, gebildet oben auf der Hauptriffelung durch Laserveränderung.
- Plattenwärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß mindestens eine mit mindestens einem unebenen Bereich (5) ausgestattete Fläche, zusammen mit der betreffenden benachbarten und zugewendeten Platte (2), einen der mindestens zwei Kreisläufe bildet.
- Plattenwärmetauscher nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, daß mindestens eine Fläche von jeder der Mehrzahl von Platten (2) uneben ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000051U ITVR20020051U1 (it) | 2002-08-26 | 2002-08-26 | Scambiatore di calore a piastre. |
ITVR20020051 | 2002-08-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1394491A2 EP1394491A2 (de) | 2004-03-03 |
EP1394491A3 EP1394491A3 (de) | 2005-08-17 |
EP1394491B1 true EP1394491B1 (de) | 2009-04-08 |
Family
ID=31198630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03017674A Expired - Lifetime EP1394491B1 (de) | 2002-08-26 | 2003-08-14 | Plattenwärmetauscher |
Country Status (6)
Country | Link |
---|---|
US (1) | US20040226704A1 (de) |
EP (1) | EP1394491B1 (de) |
AT (1) | ATE428097T1 (de) |
CA (1) | CA2437780A1 (de) |
DE (1) | DE60327026D1 (de) |
IT (1) | ITVR20020051U1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7032654B2 (en) * | 2003-08-19 | 2006-04-25 | Flatplate, Inc. | Plate heat exchanger with enhanced surface features |
SE527716C2 (sv) | 2004-04-08 | 2006-05-23 | Swep Int Ab | Plattvärmeväxlare |
DE102005034305A1 (de) * | 2005-07-22 | 2007-01-25 | Behr Gmbh & Co. Kg | Plattenelement für einen Plattenkühler |
US20070261834A1 (en) * | 2006-05-09 | 2007-11-15 | Kaori Heat Treatment Co., Ltd. | Heat exchanger having uneven flowing paths |
AU2009225118B2 (en) * | 2008-03-13 | 2012-02-02 | Danfoss A/S | A double plate heat exchanger |
US9389028B2 (en) | 2010-07-08 | 2016-07-12 | Swep International Ab | Plate heat exchanger |
CA2929710C (en) * | 2014-01-22 | 2021-01-26 | Provides Metalmeccanica S.R.L. | Heat exchanger |
CN106105410A (zh) * | 2014-01-22 | 2016-11-09 | 高克联管件有限公司 | 用于板热交换器的双侧面微型翅片板 |
USD757662S1 (en) * | 2014-02-06 | 2016-05-31 | Kobe Steel, Ltd. | Plate for heat exchanger |
USD763804S1 (en) * | 2014-02-06 | 2016-08-16 | Kobe Steel, Ltd. | Plate for heat exchanger |
JP6219199B2 (ja) * | 2014-02-27 | 2017-10-25 | 株式会社神戸製鋼所 | 熱交換用プレートとなる元板材、及びその元板材の製造方法 |
ES2813624T3 (es) * | 2017-10-05 | 2021-03-24 | Alfa Laval Corp Ab | Placa de transferencia de calor y un paquete de placas para un intercambiador de calor que comprende una pluralidad de tales placas de transferencia de calor |
SE541905C2 (en) * | 2017-12-05 | 2020-01-02 | Swep Int Ab | Heat exchanger and method for forming heat exchanger plates |
US11412640B2 (en) | 2019-07-29 | 2022-08-09 | Pratt & Whitney Canada Corp. | Plate cooler for aircraft electronic components |
US11414202B2 (en) | 2019-11-06 | 2022-08-16 | Pratt & Whitney Canada Corp. | Plate cooler for aircraft electronic components |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1094291A2 (de) * | 1999-10-22 | 2001-04-25 | Ebara Corporation | Plattenwärmetauscher |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2872165A (en) * | 1954-09-04 | 1959-02-03 | Separator Ab | Plate type heat exchanger |
US3759308A (en) * | 1970-06-15 | 1973-09-18 | Parkson Corp | Plate evaporator for removing volatiles from liquids |
US4182411A (en) * | 1975-12-19 | 1980-01-08 | Hisaka Works Ltd. | Plate type condenser |
SE423750B (sv) * | 1977-01-14 | 1982-05-24 | Munters Ab Carl | Anordning vid vermevexlare for sensibel och/eller latent vermeoverforing |
US4749032A (en) * | 1979-10-01 | 1988-06-07 | Rockwell International Corporation | Internally manifolded unibody plate for a plate/fin-type heat exchanger |
US4438809A (en) * | 1980-08-01 | 1984-03-27 | Thaddeus Papis | Tapered plate annular heat exchanger |
FI85060C (fi) * | 1985-11-11 | 1992-02-25 | Mitsubishi Materials Corp | Vaermeoeverfoeringsmaterial och foerfarande foer framstaellning av detsamma. |
US4715433A (en) * | 1986-06-09 | 1987-12-29 | Air Products And Chemicals, Inc. | Reboiler-condenser with doubly-enhanced plates |
GB8631006D0 (en) * | 1986-12-30 | 1987-02-04 | Apv Int Ltd | Plate heat transfer apparatus |
US4995451A (en) * | 1989-12-29 | 1991-02-26 | Digital Equipment Corporation | Evaporator having etched fiber nucleation sites and method of fabricating same |
SE9200213D0 (sv) * | 1992-01-27 | 1992-01-27 | Alfa Laval Thermal Ab | Svetsad plattvaermevaexlare |
SE505225C2 (sv) * | 1993-02-19 | 1997-07-21 | Alfa Laval Thermal Ab | Plattvärmeväxlare och platta härför |
EP0720720B1 (de) * | 1993-09-27 | 1998-01-21 | Eberhard Dipl.-Ing. Paul | Kanalwärmetauscher |
US6919162B1 (en) * | 1998-08-28 | 2005-07-19 | Agilent Technologies, Inc. | Method for producing high-structure area texturing of a substrate, substrates prepared thereby and masks for use therein |
DE69922984T2 (de) * | 1998-10-15 | 2006-02-23 | Ebara Corp. | Plattenwärmetauscher |
JP2000161877A (ja) * | 1998-11-24 | 2000-06-16 | Atago Seisakusho:Kk | プレ―ト式熱交換器 |
JP3139681B2 (ja) * | 1999-05-31 | 2001-03-05 | 春男 上原 | 凝縮器 |
DE19963594C2 (de) * | 1999-12-23 | 2002-06-27 | Mannesmann Ag | Vorrichtung in Mikrostrukturtechnik zum Hindurchleiten von Medien sowie Verwendung als Brennstoffzellensystem |
US6357516B1 (en) * | 2000-02-02 | 2002-03-19 | York International Corporation | Plate heat exchanger assembly with enhanced heat transfer characteristics |
-
2002
- 2002-08-26 IT IT000051U patent/ITVR20020051U1/it unknown
-
2003
- 2003-08-13 US US10/639,431 patent/US20040226704A1/en not_active Abandoned
- 2003-08-14 AT AT03017674T patent/ATE428097T1/de not_active IP Right Cessation
- 2003-08-14 EP EP03017674A patent/EP1394491B1/de not_active Expired - Lifetime
- 2003-08-14 DE DE60327026T patent/DE60327026D1/de not_active Expired - Lifetime
- 2003-08-20 CA CA002437780A patent/CA2437780A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1094291A2 (de) * | 1999-10-22 | 2001-04-25 | Ebara Corporation | Plattenwärmetauscher |
Also Published As
Publication number | Publication date |
---|---|
ITVR20020051U1 (it) | 2004-02-27 |
ATE428097T1 (de) | 2009-04-15 |
EP1394491A2 (de) | 2004-03-03 |
DE60327026D1 (de) | 2009-05-20 |
CA2437780A1 (en) | 2004-02-26 |
EP1394491A3 (de) | 2005-08-17 |
US20040226704A1 (en) | 2004-11-18 |
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