EP0984238A2 - Wärmetauscher - Google Patents

Wärmetauscher Download PDF

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Publication number
EP0984238A2
EP0984238A2 EP99115727A EP99115727A EP0984238A2 EP 0984238 A2 EP0984238 A2 EP 0984238A2 EP 99115727 A EP99115727 A EP 99115727A EP 99115727 A EP99115727 A EP 99115727A EP 0984238 A2 EP0984238 A2 EP 0984238A2
Authority
EP
European Patent Office
Prior art keywords
plate
heat exchanger
plates
plate heat
flow
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.)
Granted
Application number
EP99115727A
Other languages
English (en)
French (fr)
Other versions
EP0984238B1 (de
EP0984238A3 (de
Inventor
Lars Persson
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.)
COMPACT PLATE AB
Original Assignee
IP Compact AB
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Filing date
Publication date
Application filed by IP Compact AB filed Critical IP Compact AB
Publication of EP0984238A2 publication Critical patent/EP0984238A2/de
Publication of EP0984238A3 publication Critical patent/EP0984238A3/de
Application granted granted Critical
Publication of EP0984238B1 publication Critical patent/EP0984238B1/de
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
    • 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
    • F28D9/0037—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

Definitions

  • the present invention relates to a plate heat exchanger of cross-flow type for heat exchange between different media of which at least one is a gas
  • the plate heat exchanger comprises plates with elongated and in various alternating directions protruding corrugating ridges
  • the plate heat exchanger has through-flow gaps for a first medium and through-flow gaps for a second medium
  • the through-flow gaps extend cross-wise relative to each other through the plate heat exchanger such that said first and second medium flow cross-wise relative to each other through said plate heat exchanger
  • each plate defines a partition wall between two different through-flow gaps for different media such that heat transfer between said media occurs through said plate
  • the corrugating ridges are situated between two planes
  • each plate has two edge portions which are provided in one plane and two other opposing edge portions which are provided in the other plane, wherein the corrugating ridges are located inclined or obliquely relative to said edge portions, wherein two adjacent plates are mounted relative to each other such that two edge portions of one of the
  • Plate heat exchangers of the abovementioned cross-flow type are previously known from e.g. US, A, 4 099 928.
  • separate sealing means are required to provide sufficient sealing in the corners of said plate heat exchanger.
  • Such separate sealing means must be exactly adapted to the plate heat exchanger to obtain the required sealing in its corners, assembly work is required to apply them and they must be held in position by means of corner rails in a frame structure.
  • the object of the present invention has been to provide, at a plate heat exchanger of the type defined above, a construction at which said separate sealing means can be deleted. This is arrived at according to the invention by providing the plate heat exchanger substantially with the characterizing features of subsequent claim 1.
  • the plate heat exchanger according to the invention has, inter alia, the following advantages:
  • the plate heat exchanger illustrated in the drawings is of the cross-flow type for heat exchange between different media of which at least one is a gas.
  • This plate heat exchanger comprises a stack 1 of plates under which there may be located a bottom plate 2 and on top of which there may be located a top plate 3.
  • the stack 1 of plates includes plates 8a, 8b which in the drawings are square, but which alternatively can be rectangular.
  • the plates are preferably made of a sheet material which is folded to form elongated, substantially in wave shape extending corrugating ridges 15.
  • Plates 8a, 8b define together through-flow gaps 9 and 10 of which every second through-flow gap 9 extends through the plate heat exchanger and is adapted to let through a first medium V, e.g. hot air.
  • the remaining through-flow gaps 10 extend crosswise relative to the through-flow gaps 9 extending through the plate heat exchanger and are adapted to permit passage of a second medium K, e.g. cold air.
  • Each plate 8a and 8b respectively defines a partition wall between the two different through-flow gaps 9, 10 so that heat transfer can occur from one medium, e.g. the hot air V, to the other medium, e.g. the cold air K, through said plate 8a and 8b respectively.
  • Adjacent plates 8a, 8b are provided such that their corrugating ridges 15 cross each other in a through-flow gap 9 or 10 defined between the plates 8a, 8b.
  • two adjacent plates 8a, 8b are the corrugating ridges 15 of one plate 8a in a through-flow gap 9 or 10 defined between the adjacent plates 8a, 8b directed preferably in a lateral direction relative to an inlet direction of a medium V or K flowing into the through-flow gap 9 or 10.
  • corrugating ridges 15 of the other plate 8b of said adjacent plates 8a, 8b are in said through-flow gap 9 or 10 directed in another lateral direction relative to said inlet direction.
  • the plates 8a, 8b have opposing edge portions 11, 12 and 13, 14 respectively. These edge portions 11, 12 and 13, 14 respectively, are preferably straight or substantially straight and the corrugating ridges 15 are preferably inclined relative thereto.
  • the corrugating ridges 15 extend e.g. at an angle of about 45° relative to said edge portions.
  • corrugating ridges 15 of adjacent plates 8a, 8b engage each other pointwise in the through-flow gap 9 or 10 defined between said plates 8a, 8b and are joined together in the points of engagement.
  • a through-flow gap 9 or 10 defined by the adjacent plates 8a, 8b and inlet and outlet gaps 17, 18 defined by opposing edge portions 11, 12 or 13, 14 of the plates 8a, 8b for inlet and outlet flow of said media V, K into and from said through-flow gap 9 or 10, preferably have the same or substantially the same height H.
  • the plates 8a, 8b in the stack 1 thereof are also provided or mounted such that two opposing edge portions 13, 14 or 11, 12 of first and second plates 8a, 8b are joined closely together for closing through-flow gaps 9 or 10 defined between said plates 8a, 8b at two opposite sides, while two other opposing edge portions 11, 12 or 13, 14 of first and second plates 8a, 8b define between them inlet and outlet gaps 17, 18 into and from said through-flow gaps 9 or 10.
  • each plate 8a and 8b lie preferably in the same first plane P1 and its two other opposing edge portions 13 and 14 preferably in the same second plane P2.
  • corrugating ridges 15 of each plate 8a and 8b respectively extend back and forth between said first and second planes P1 and P2 so that outer portions 15a of every second corrugating ridge 15 lie in the first plane P1 and outer portions 15a of corrugating ridges 15 there-between lie in the second plane P2.
  • Adjacent plates 8a, 8b in the stack 1 thereof may be located in two different positions relative to each other, namely either the positions according to figs. 2 2a and 2b or the positions according to figs. 3, 3a and 3b. Common to these two different mutual positions is that the adjacent plates 8a, 8b are located relative to each other such that their corrugating ridges 15 extend crosswise relative to each other. Additionally, the two adjacent plates 8a, 8b are facing each other such that corrugating ridges 15 on one plate 8a are facing corrugating ridges 15 on the other plate 8b. The outer portions 15a of the corrugating ridges 15 facing each other of the two adjacent plates 8a, 8b engage each other.
  • the two adjacent plates 8a, 8b define between them a through-flow gap 9 or 10 the height H of which is some-what less than the distance A1 between the two planes P1 and P2 of one plate 8a plus the distance A2 between the two planes P1 and P2 of the other plate 8b.
  • the height H is similar to the distances A1 + A2 minus the wall thickness of two plates 8a, 8b.
  • the plates 8a, 8b can be designed such that the distance A1 and A2 respectively, between the planes P1 and P2 of the respective plate 8a, 8b, is always the same, which means that the through-flow gap 9 or 10 is twice as high as the distance between the planes P1 and P2 of one plate.
  • the plates 8a, 8b may alternatively be designed such that the distance between the planes P1, P2 of one plate 8a is less than the distance between corresponding planes P1, P2 of the other plate 8b. In this case, the height H of the through-flow gap 9 or 10 is less than the sum of the distances between the planes P1, P2 of said plates 8a, 8b.
  • Said two adjacent plates 8a, 8b may also have such mutual positions that two opposing edge portions 13, 14 and 11, 12 respectively, of one plate 8a engage and are joined together with two opposing edge portions 13, 14 of the other plate 8b.
  • Two other opposing edge portions 11, 12 of one plate 8a and two other opposing edge portions 11, 12 of the other plate 8b define between them an inlet gap 17 into and an outlet gap 18 from the through-flow gap 9 or 10, the heights H of which correspond with or substantially correspond with the height H of the through-flow gap 9 or 10.
  • the adjacent plates 8a, 8b may be located in two different positions relative to each other.
  • opposing edge portions 13, 14 which on the plate 8a lie in the same second plane P2
  • each plate 8a, 8b has four corner portions 20.
  • the inside of the corner portions 20 of a plate is joined together with the outside of corresponding corner portions 20 of an adjacent plate 8b or 8a.
  • a corner portion 20 of said plate extends obliquely from the edge portion 14 lying in the plane P1 to the edge portion 12 lying in the plane P2 of the plate.
  • the corner portion 20 is bent downwards (or upwards) along a bending line 20b which, seen from above (fig. 3c), extends from the edge portion 14 to the edge portion 12.
  • the corner portion 20 is bent downwards, the corner part 20a downwards along a part of the bending line 20b extending obliquely between the planes P1, P2 and the outer part of the edge portion 12 downwards.
  • the corner portion 20 is formed, preferably in connection with the bending, such that one side 20c thereof becomes longer than its other side 20d and this difference in length depends on the distance between the planes P1 and P2.
  • the corner portion 20 of the plate 8a is provided in the same way.
  • corner portions 20 are provided so close and/or durable to each other by soldering and/or have such rigidity that they replace separate sealing and/or holding and/or stiffening means at the corners of the stack 1 of plates.
  • angles ⁇ of the corrugating ridges relative to the inlet gaps 17 for hot medium V may e.g. be less than the angles ⁇ of the corrugating ridges 15 relative to inlet gaps 17 for cold medium K. In this example it is achieved that a greater flow resistance is generated for hot medium V in the plate heat exchanger than for cold medium K.
  • angles ⁇ may be about 30° and the angles ⁇ consequently about 60°, but said angles ⁇ , ⁇ may vary in view of the desired flow resistance for each medium V and K.
  • the corrugating ridges 15 or a part thereof may form spaces 16 in one of two adjacent plates 8b, 8b, said spaces being directed from a first inlet gap 17 of the plate heat exchanger for a medium, preferably cold medium K, obliquely towards an inlet gap 17 of the plate heat excbanger for a second medium, preferably hot medium V.
  • a medium preferably cold medium K
  • said cold medium K can quickly cool such a part of the plate heat exchanger which is heated most by said hot medium V.
  • a separate through-flow passage 19 may be provided close to and extend along the inlet gap 17 for hot medium V.
  • This separate through-flow passage 19 may lack corrugating ridges 15 such that cold medium K can flow therethrough with substantially less turbulence than the turbulence generated in cold medium K in the other through-flow gaps 10.
  • Said separate through-flow gap 19 can be rectilinear and it can be located immediately within the inlet gap 17 for hot medium V.
  • the plates 8a, 8b may have identical shape or substantially identical shape. As an example it can be noted that all plates 8a, 8b may have corner portions 20 bent in the same direction. Alternatively, every second plate 8a, 8b may have corner portions 20 bent in the opposite direction, but otherwise, the plates 8a, 8b may be identical.
  • the plates 8a, 8b are manufactured of a metallic material and they are mounted or attached to each other by soldering, e.g. vacuum soldering.
  • soldering can be carried through by applying a material suitable for soldering between the plates 8a, 8b (and eventually also between the members of the frame structure 4 and the plates), and then place the plate heat exchanger in a heating device in which the soldering material is melted.
  • the plate heat exchanger is removed from the heating device and the melted soldering material has cooled down, the solder is finished and the plate heat exchanger tight or leakproof.
  • edge portions 11-14, the corrugating ridges 15 and the corner portions 20 are joined together in a stable and durable manner and it is possible to do without all types of frame structures located outside the stack 1 of plates for holding the plates together and/or provide sufficient stability to said stack 1 of plates.
  • the embodiments of the plate heat exchanger described above may vary within the scope of the following claims and that the plate heat exchanger can be used for two gaseous media or for one gaseous medium and one liquid medium.

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)
  • Separation By Low-Temperature Treatments (AREA)
EP99115727A 1998-09-01 1999-08-10 Wärmetauscher Expired - Lifetime EP0984238B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9802971A SE521382C2 (sv) 1998-09-01 1998-09-01 Plattvärmeväxlare av korsströmstyp
SE9802971 1998-09-01

Publications (3)

Publication Number Publication Date
EP0984238A2 true EP0984238A2 (de) 2000-03-08
EP0984238A3 EP0984238A3 (de) 2000-06-07
EP0984238B1 EP0984238B1 (de) 2003-05-21

Family

ID=20412465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115727A Expired - Lifetime EP0984238B1 (de) 1998-09-01 1999-08-10 Wärmetauscher

Country Status (4)

Country Link
EP (1) EP0984238B1 (de)
AT (1) ATE241121T1 (de)
DE (1) DE69908046D1 (de)
SE (1) SE521382C2 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100505482B1 (ko) * 2002-04-12 2005-08-05 충남대학교산학협력단 배기열 회수용 플라스틱 열교환기
EP2119991A2 (de) * 2008-05-16 2009-11-18 Klingenburg GmbH "Rekuperativer Wärmerückgewinner"
NL2003983C2 (en) * 2009-12-18 2011-06-21 Mircea Dinulescu Plate type heat exchanger and method of manufacturing heat exchanger plate.
WO2011148216A1 (en) * 2010-05-26 2011-12-01 Mircea Dinulescu Plate-type heat exchanger
WO2011154241A1 (en) 2010-06-10 2011-12-15 Rolls-Royce Plc A heat exchanger
EP2781870A1 (de) * 2013-03-21 2014-09-24 Nexson Group Platte für Wärmetauscher, und Wärmetauscher, in den eine solche Platte eingebaut ist
WO2021059877A1 (ja) * 2019-09-24 2021-04-01 住友精密工業株式会社 熱交換器
CN113795318A (zh) * 2019-05-16 2021-12-14 阿法拉伐股份有限公司 处理诸如海水的供给物的板式热交换器、热交换板和方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099928A (en) 1975-07-18 1978-07-11 Aktiebolaget Carl Munters Method of manufacturing a heat exchanger body for recuperative exchangers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1096536A (en) * 1965-03-17 1967-12-29 United Aircraft Corp Cross-flow heat exchangers
DE1751464A1 (de) * 1967-06-08 1971-07-15 Air Preheater Waermetauscher-Baugruppe
DE2434887A1 (de) * 1974-07-19 1976-03-04 Janosik Manfred Kreuzstromplattenwaermetauscher aus metallblechen
SE443870B (sv) * 1981-11-26 1986-03-10 Alfa Laval Ab Plattvermevexlare med korrugerade plattor der korrugeringarna stoder mot nerliggande plattas korrugeringar utom i ett antal forsenkta partier
US5681538A (en) * 1995-02-01 1997-10-28 Engelhard Corporation Metallic monolith and plates for the assembly thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099928A (en) 1975-07-18 1978-07-11 Aktiebolaget Carl Munters Method of manufacturing a heat exchanger body for recuperative exchangers

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100505482B1 (ko) * 2002-04-12 2005-08-05 충남대학교산학협력단 배기열 회수용 플라스틱 열교환기
EP2119991A2 (de) * 2008-05-16 2009-11-18 Klingenburg GmbH "Rekuperativer Wärmerückgewinner"
EP2119991A3 (de) * 2008-05-16 2013-02-13 Klingenburg GmbH "Rekuperativer Wärmerückgewinner"
US9222731B2 (en) 2009-12-18 2015-12-29 Mircea Dinulescu Plate type heat exchanger and method of manufacturing heat exchanger plate
NL2003983C2 (en) * 2009-12-18 2011-06-21 Mircea Dinulescu Plate type heat exchanger and method of manufacturing heat exchanger plate.
WO2011148216A1 (en) * 2010-05-26 2011-12-01 Mircea Dinulescu Plate-type heat exchanger
US9733026B2 (en) 2010-06-10 2017-08-15 Rolls Royce Plc Heat exchanger with fluid guiding members
WO2011154241A1 (en) 2010-06-10 2011-12-15 Rolls-Royce Plc A heat exchanger
FR3003637A1 (fr) * 2013-03-21 2014-09-26 Nexson Group Plaque pour echangeur thermique et echangeur thermique incorporant une telle plaque
EP2781870A1 (de) * 2013-03-21 2014-09-24 Nexson Group Platte für Wärmetauscher, und Wärmetauscher, in den eine solche Platte eingebaut ist
CN113795318A (zh) * 2019-05-16 2021-12-14 阿法拉伐股份有限公司 处理诸如海水的供给物的板式热交换器、热交换板和方法
WO2021059877A1 (ja) * 2019-09-24 2021-04-01 住友精密工業株式会社 熱交換器
JP7358152B2 (ja) 2019-09-24 2023-10-10 住友精密工業株式会社 熱交換器

Also Published As

Publication number Publication date
DE69908046D1 (de) 2003-06-26
SE9802971D0 (sv) 1998-09-01
ATE241121T1 (de) 2003-06-15
SE521382C2 (sv) 2003-10-28
EP0984238B1 (de) 2003-05-21
SE9802971L (sv) 2000-03-02
EP0984238A3 (de) 2000-06-07

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