EP2370771B1 - Échangeur de chaleur brasé - Google Patents

Échangeur de chaleur brasé Download PDF

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Publication number
EP2370771B1
EP2370771B1 EP09771363.0A EP09771363A EP2370771B1 EP 2370771 B1 EP2370771 B1 EP 2370771B1 EP 09771363 A EP09771363 A EP 09771363A EP 2370771 B1 EP2370771 B1 EP 2370771B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
port openings
plates
pressure port
high pressure
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.)
Active
Application number
EP09771363.0A
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German (de)
English (en)
Other versions
EP2370771A1 (fr
Inventor
Sven Andersson
Svante Hoberg
Tomas Dahlberg
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.)
Swep International AB
Original Assignee
Swep International AB
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Publication date
Application filed by Swep International AB filed Critical Swep International AB
Publication of EP2370771A1 publication Critical patent/EP2370771A1/fr
Application granted granted Critical
Publication of EP2370771B1 publication Critical patent/EP2370771B1/fr
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    • 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
    • F28F3/02—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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means

Definitions

  • the present invention relates to a heat exchanger comprising a number of heat exchanger plates comprising a pressed pattern of ridges and grooves adapted to form flow channels for media to exchange heat flowing through said flow channels, the plates further comprising at least four port openings arranged to allow fluid communication to said flow channels and a skirt extending around the periphery of the heat exchanger plates, said skirt sealing the flow channels.
  • a relatively common type of heat exchanger for carbon dioxide applications is the "dual pipe" exchanger, which comprises two parallel pipes, which are interconnected to enable heat transfer between the pipes. Usually, a pipe with a small diameter is used for the high pressure medium, whereas a pipe with a large diameter is used for the low pressure medium.
  • Dual pipe heat exchangers have excellent properties concerning capability to withstand pressure, but are inefficient in terms of heat exchanging capability vs. weight.
  • CBE Compact Brazed Exchanger
  • a CBE generally comprises a number of heat exchanger plates, all of which being provided with a pressed pattern of ridges and grooves and port openings for fluid communication with flow channels formed by interaction between the pressed patterns of ridges and grooves of neighboring plates.
  • the pressed patterns of neighboring plates are arranged such that ridges of one plate contact grooves of a neighboring plate.
  • the contact points are brazed to one another to provide sufficient strength to the flow channel formed by the patterns of ridges and grooves of neighboring plates.
  • the flow channels formed by the interaction between the ridges and grooves are laterally sealed by interacting skirts provided around the circumference of the heat exchanger plates.
  • Such a heat exchanger is disclosed in JP06074672 .
  • this and other problems are solved by providing at least one of the port openings on a peninsula which extends outside the general area of a heat exchanging surface of heat exchanger plates comprised in the heat exchanger, said peninsula being closely surrounded by skirts over at least 100 degrees.
  • a heat exchanger plate 100 comprises a heat exchanging area 110, provided with a pressed pattern (not shown) of ridges and grooves, in a way well known to persons skilled in the art.
  • the patterns of ridges and grooves of neighboring plates are adapted to provide flow channels between the plates due to contact between ridges of one plate contacting grooves of its neighboring plate when the plates 100 are stacked onto one another in a way well known by persons skilled in the art.
  • the heat exchanger 100 also comprises at least two low pressure port openings 120 and two high pressure openings 130. The port openings are in selective fluid communication with the flow channels formed by the pattern of ridges and grooves in a way to be described below.
  • a skirt 140 surrounds the heat exchanging area 110 and is arranged such that two skirts of neighboring plates interact to form a seal between such neighboring plates by an overlapping engagement between neighboring skirts, hence sealing the flow channels formed by the pressed pattern of ridges and grooves.
  • the high pressure port 130 is placed on a "peninsula" 150 extending out from the heat exchanging area 110.
  • the peninsula 150 is closely surrounded by the skirt 140 over an angle ⁇ of about 180 degrees.
  • Fig 2 shows virtually the same embodiment as is shown in Fig. 1 , with the exception that fig. 2 shows the skirt 140 being surrounded by a plate portion 160 which is provided with a pressed pattern of ridges and grooves.
  • the ridges and grooves 165, 166, respectively, of the plate portion 160 are adapted to contact corresponding ridges and grooves of the plate portion 160 of a neighboring plate, and hence increase the strength of the seal formed by the skirt 140.
  • Fig. 3 shows still a further embodiment of a heat exchanger plate 200 according to the present invention.
  • a peninsula 210 extends in a direction parallel to a length axis of the heat exchanger plate 200, and a high pressure port 220 is located on such peninsula.
  • the skirt 140 closely surrounds the high pressure port 220 over about 180 degrees.
  • a desired number of heat exchanger plates are stacked onto one another. Not all heat exchanger plates 100 or 200 are of the same design, every other plate in the stack is a mirror image of its neighboring plates; by varying the height of the areas surrounding both the high pressure ports and the low pressure ports, it is possible to determine which port opening that shall communicate with each flow channel. This method of determining the fluid communication in a heat exchanger is well known by persons skilled in the art, and will hence not be more thoroughly discussed.
  • the entire plate package is subjected to a brazing operation, i.e. the plate package is put into a furnace and heated to a temperature sufficient to melt a brazing material arranged between the plates. After the brazing material has melted, it will concentrate to areas wherein the plates are lying close to one another (the concentration of the brazing material is due to capillary forces). Consequently, the plates will be joined by a brazing connection after the heat exchanger has cooled down sufficiently to allow the brazing material to solidify.
  • a heat exchanger 400 comprising a number of heat exchanger plates 200 is shown. It can clearly be seen that the skirts 140 form an edge around the circumference of the heat exchanger plates, and it is also very clear how the skirts 140 interact to form a half-pipe like closure around the high pressure port openings 130.
  • the half-pipe like closure formed by the skirts 140 around the high pressure port openings 130 gives a very high strength around the port openings; the forces emanating from the surface area of the port will be transferred through the connections between the overlapping skirts.
  • the peninsula placement of the high pressure port 130 increases the strength of the port by fact that a large portion of the port opening lies in the vicinity of the skirt 140; as previously described, skirts 140 of neighboring plates will overlap to form a sealed connection between the plates.
  • the overlapping skirts will form a "half-pipe" of overlapping skirts.
  • Such a half pipe-like array of overlapping skirts has proven to be very strong, it can absorb forces in a much more efficient way than e.g. the contact points between the pressed patterns of the heat exchanging areas.
  • a heat exchanger plate according to a further embodiment embodying this feature of the present invention is shown.
  • both a high pressure port 300 and a low pressure port 310 are placed on peninsulas 320, 330, respectively, the definition of a peninsula being that the skirts surrounding the plates closely surrounds the port openings over more than 90 degrees.
  • skirt 140 not necessarily must be arranged such that it only surrounds the heat exchanger as a whole; it is also possible to provide any portion of the heat exchanger plates with skirts.
  • a skirt could be arranged such that an opening is formed in the heat exchanger; any arrangement wherein plate portions extend in a generally perpendicular direction vis-à-vis a plane of the heat exchanger, and wherein such plate portions of neighboring plates are designed to overlap corresponding plate portions of neighboring plates in a way that has been described above with reference to the skirt 140 are regarded as skirts in the wording of the claims.

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)

Claims (2)

  1. Echangeur de chaleur brasé (400) pour échanger la chaleur entre au moins deux milieux, l'échangeur de chaleur (400) comprenant un certain nombre de plaque d'échangeur de chaleur (100 ; 200) comprenant un motif comprimé de crêtes et de rainures adaptées pour former des canaux d'écoulement pour que les milieux échangent la chaleur s'écoulant à travers lesdits canaux d'écoulement, les plaques (100 ; 200) comprenant en outre des ouvertures d'orifice haute pression circulaires (130 ; 220 ; 300) et des ouvertures d'orifice basse pression circulaires (120 ; 310) agencées pour permettre la communication de fluide avec lesdits canaux d'écoulement, dans lequel au moins deux des ouvertures d'orifice (130 ; 220 ; 300) sont des ouvertures d'orifices haute pression (130 ; 220 ; 300) et au moins deux des ouvertures d'orifice (120 ; 310) sont des ouvertures d'orifice basse pression (120 ; 310), dans lequel une jupe (140) s'étend autour de la périphérie des plaques d'échangeur de chaleur (100 ; 200), les jupes (140) des plaques voisines (100 ; 200) étant agencées pour entrer en contact les unes avec les autres d'une manière chevauchante afin d'obtenir un raccordement scellant les canaux d'écoulement, caractérisé en ce que les ouvertures d'orifice haute pression (130 ; 220 ; 300) sont placées sur une péninsule (150) entourée par la jupe (140) sur au moins 100 degrés et en ce que les ouvertures d'orifice haute pression (130 ; 220 ; 300) ont un diamètre considérablement plus petit que les ouvertures d'orifice basse pression (120 ; 310).
  2. Echangeur de chaleur brassé (400) selon la revendication 1, dans lequel la jupe (140) entoure les ouvertures d'orifice haute pression (130 ; 220 ; 300) sur au moins 120 degrés.
EP09771363.0A 2008-12-17 2009-12-11 Échangeur de chaleur brasé Active EP2370771B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0802596 2008-12-17
PCT/EP2009/066928 WO2010069871A1 (fr) 2008-12-17 2009-12-11 Accès haute pression sur péninsule

Publications (2)

Publication Number Publication Date
EP2370771A1 EP2370771A1 (fr) 2011-10-05
EP2370771B1 true EP2370771B1 (fr) 2017-07-19

Family

ID=41819669

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09771363.0A Active EP2370771B1 (fr) 2008-12-17 2009-12-11 Échangeur de chaleur brasé

Country Status (5)

Country Link
US (1) US20120118546A1 (fr)
EP (1) EP2370771B1 (fr)
JP (1) JP5882739B2 (fr)
CN (1) CN102245993A (fr)
WO (1) WO2010069871A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105705284B (zh) * 2013-10-29 2019-05-31 舒瑞普国际股份公司 使用丝网印刷钎焊材料钎焊板式换热器的方法；利用该方法制造的板式换热器
JP6080746B2 (ja) * 2013-11-28 2017-02-15 三菱電機株式会社 プレート積層体
DE102013225321A1 (de) * 2013-12-09 2015-06-11 MAHLE Behr GmbH & Co. KG Stapelscheibe für einen Wärmeübertrager und Wärmeübertrager
JP6552499B2 (ja) * 2013-12-10 2019-07-31 スウェップ インターナショナル アクティエボラーグ 改良された流れを有する熱交換器
SE541905C2 (en) 2017-12-05 2020-01-02 Swep Int Ab Heat exchanger and method for forming heat exchanger plates

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19611447C1 (de) * 1996-03-22 1997-07-10 Laengerer & Reich Gmbh & Co Gehäuseloser Plattenwärmetauscher

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US4182411A (en) * 1975-12-19 1980-01-08 Hisaka Works Ltd. Plate type condenser
SE466171B (sv) * 1990-05-08 1992-01-07 Alfa Laval Thermal Ab Plattfoeraangare daer aatminstone den ena plattan i en foeraangningspassage aer uppdelad i faelt anordnade bredvid varandra mellan plattans laangsidor, vilka faelt uppvisar sinsemellan olika korrugeringsmoenster saa att stroemningsmotstaandet successivt minskar fraan ena sidan till den andra
JPH0674672A (ja) * 1992-08-25 1994-03-18 Hisaka Works Ltd プレート式熱交換器
DE4416391A1 (de) * 1994-05-10 1995-11-16 Schmidt Bretten Gmbh Plattenwärmetauscher
JP2887442B2 (ja) * 1994-09-22 1999-04-26 株式会社ゼクセル 積層型熱交換器
SE521916C2 (sv) * 1997-02-25 2003-12-16 Ep Technology Ab Plattvärmeväxlare med läckageutsläpp
JP3064371U (ja) * 1999-05-28 2000-01-14 東洋ラジエーター株式会社 積層型熱交換器
JP2001050681A (ja) * 1999-08-06 2001-02-23 Matsushita Electric Ind Co Ltd 熱交換器およびその熱交換器を用いた冷凍サイクル装置
JP3448265B2 (ja) * 2000-07-27 2003-09-22 昭 藤山 チタン製プレート式熱交換器の製造方法
US6478080B2 (en) * 2001-03-29 2002-11-12 Standard Motor Products, Inc. Fluid cooling device
DE10153877A1 (de) * 2001-11-02 2003-05-15 Behr Gmbh & Co Wärmeübertrager
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FR2843449B1 (fr) * 2002-08-09 2005-05-06 Valeo Thermique Moteur Sa Echangeur de chaleur pour le circuit d'air d'admission d'un moteur thermique
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DE19611447C1 (de) * 1996-03-22 1997-07-10 Laengerer & Reich Gmbh & Co Gehäuseloser Plattenwärmetauscher

Also Published As

Publication number Publication date
EP2370771A1 (fr) 2011-10-05
US20120118546A1 (en) 2012-05-17
JP5882739B2 (ja) 2016-03-09
WO2010069871A1 (fr) 2010-06-24
JP2012512378A (ja) 2012-05-31
CN102245993A (zh) 2011-11-16

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