EP0164391A1 - Plaque d'echangeur thermique. - Google Patents

Plaque d'echangeur thermique.

Info

Publication number
EP0164391A1
EP0164391A1 EP85900237A EP85900237A EP0164391A1 EP 0164391 A1 EP0164391 A1 EP 0164391A1 EP 85900237 A EP85900237 A EP 85900237A EP 85900237 A EP85900237 A EP 85900237A EP 0164391 A1 EP0164391 A1 EP 0164391A1
Authority
EP
European Patent Office
Prior art keywords
heat exchange
plate
ridges
valleys
centre line
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
EP85900237A
Other languages
German (de)
English (en)
Other versions
EP0164391B1 (fr
Inventor
Jan-Ove Bergqvist
Nils Stadmark
Arthur Dahlgren
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.)
Alfa Laval Thermal AB
Original Assignee
Alfa Laval Thermal AB
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20353653&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0164391(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Alfa Laval Thermal AB filed Critical Alfa Laval Thermal AB
Priority to AT85900237T priority Critical patent/ATE28511T1/de
Publication of EP0164391A1 publication Critical patent/EP0164391A1/fr
Application granted granted Critical
Publication of EP0164391B1 publication Critical patent/EP0164391B1/fr
Expired legal-status Critical Current

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
    • F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart

Definitions

  • This invention relates to a heat exchanger plate of the kind having a centrally placed primary heat exchange part, two secondary heat exchange parts placed on each side of this one and four holes or ports which are Ideated two and two at the respective secondary heat exchange parts and of which the two ports at each of the secondary heat exchange parts are placed in the same distance from but on different sides of a centre line of the heat exchanger plate.
  • Heat exchanger plates of this kind being manufactured of a relatively thin plate are intended to be a part of a plate heat exchanger, essentially comprising a great number of such heat exchanger plates, which are kept together in a frame with a great pressure between two thicker end plates.
  • Two heat exchange media are intended to flow through the plate interspaces accordingly created, to and from which they are conducted through channels formed by the ports in the heat exchanger plates which ports are placed in line with each other.
  • gaskets or other means are arranged for tightening between the heat exchanger plates so that passages delimited from the environment are created for the heat exchange media.
  • the primary heat exchange part as well as the secondary heat exchange parts are further in a known way provided with ridges and inter mediate valleys embossed in the plate, which are so placed that when two plates are put against each other - one of them turned 180° relative to the other one - ridges in one plate intersectingly rest against ridges in the other plate.
  • At least the ridges and valleys in the secondary heat exchange parts are so embossed that they have a volume of essentially the same size on respective sides of the plate.
  • a heat exchanger plate of the above described kind is previously known by the Swedish patent 342.691.
  • the ridges and valleys form the same angles (60° and 120°) with the centre line of the plate as the ridges and the valleys in the primary heat exchange part, while in the other secondary heat exchange part the ridges and the valleys extend parallel with the mentioned centre line.
  • the purpose of the special design of the ridges and the valleys in the other secondary heat exchange part is, according to the patent, to bring about a reduced flow resistance for a heat exchange medium which via a port enters a plate interspace formed by two equal plates of this kind in the area closest to the mentioned port, i.e. where the through-flow area for the heat exchange medium is essentially less than in the area for the primary heat exchange parts of the two plates.
  • the purpose with this invention is to improve the efficiency of a heat exchanger plate of the kind mentioned by way of introduction, with other words to bring about such a design of the heat exchanger plate that in a plate interspace formed by two equal plates - one of them turned 180° relative to the other one - arising flow resistance for a heat exchange medium is effectively utilized for the heat exchange itself than in a plate interspace formed by means of previously known heat exchanger plates.
  • each of the two secondary heat exchange parts at least on one side of the mentioned centre line of the plate is provided with ridges and valleys forming an angle with the centre line, that mentioned ridges and valleys in each of the secondary heat exchange parts form another angle, or other angles, with the centre line of the plate than the ridges and valleys in the primary heat exchange part, and that the ridges and the valleys of the plate form such angles with the centre line of the plate that when two plates are put against each other - one of them turned 180° relative to the other one - the ridges in the plate interspace intersecting and touching each other bring about a less flow resistance per unit of length in intended flow direction in the areas for the secondary heat exchange parts - on both sides of mentioned centre line - than in the area for the primary heat exchange parts.
  • Fig. 1 illustrates a so-called diagonal flow of two heat exchange media on respective sides of a heat exchanger plate.
  • Fig. 2 shows two heat exchanger plates according to a first embodiment of the invention.
  • Fig. 3 shows a cross-section along the line III-III in Fig. 2.
  • Fig. 4 and Fig. 5 illustrate how ridges designed in different ways in two plates put against each other intersect each other in a plate interspace.
  • Fig. 6 shows two heat exchanger plates according to a second embodiment of the invention.
  • Fig. 1 is schematically shown a heat exchanger plate with a primary heat exchange part 1, two secondary heat exchange parts 2, 3 and four holes going through the plate or so-called ports 4, 5, 6 and 7.
  • Two full-drawn lines 8 and 9 illustrate how a first heat exchange medium is intended to stream on one side of the plate from the port 4 to the diagonally positioned port 6, while two broken lines 10 and 11 illustrate how a second heat exchange medium is intended to stream on the other side of the plate from the port 7 to the port 5.
  • the flow of two heat exchanging media illustrated in Fig. 1 is usually called diagonal flow.
  • FIG. 2 there are shown two heat exchanger plates 12 and 13 equally embossed.
  • One plate is turned 180° in its own plane relative to the other one.
  • Each plate 12 and 13, respectively, has a primary heat exchange part 1a, two secondary heat exchange parts 2a and 3a, respectively, and four ports 4a, 5a, 6a and 7a.
  • all the three heat exchange parts 1a, 2a and 3a together with the ports 4a and 6a are surrounded by a gasket 14 arranged in a groove embossed in the plate.
  • Separate gaskets surround respective ports 5a and 7a.
  • the plate 13 all the three heat exchange parts 1a, 2a and 3a together with the ports 5a and 7a are in a corresponding way surrounded by a gasket 15.
  • the plate 12 and 13 respectively, has a corrugation pattern of ridges and valleys brought about by embossing.
  • the pattern is symmetrical round a centre line M in the plate and forms such angles relative to this centre line that in an interspace between two adjacent plates arranged as in Fig. 2 the ridges in one plate may intersectingly rest against the ridges in the other plate.
  • the secondary heat exchange parts 2a and 3a in the plates 12 and 13 have ridges and valleys which form such angles with the centre line M that in a plate interspace according to Fig. 2, ridges in the part 2a of one plate can rest intersectingly against ridges in the part 3a of the other plate.
  • the ridges and valleys in the primary heat exchange part 1a of the plates 12 and 13 form an angle of about 60° with the centre line M on one side of this one and an angle of about 120° with the centre line M on the other side of this one.
  • the ridges and valleys form an angle of about 45° with the centre line M, while corresponding angle is about 135° in the secondary heat exchange part 3a.
  • Fig. 3 is a sectional view along the line III-III in Fig. 2.
  • Fig. 3 there are shown two planes 16 and 17 located through the tops of the ridges formed on each side of a plate.
  • the enclosed volume between the plane 16 and two adjacent ridges on one side of the plate shall accordingly be essentially as large as the volume between the plane 17 and two adjacent ridges on the other side of the plate.
  • Fig. 4 is illustrated how ridges designed in the secondary heat exchange part 2a of the plate 12 intersect ridges designed in the secondary heat exchange part 3a of the plate 13 when the plates 12 and 13 are arranged for forming a plate interspace in accordance with Fig. 2.
  • the flow resistances are very unlike depending on the flow direction.
  • the flow resistance accordingly becomes several times as large as for a flow with the direction 23.
  • the flow resistance becomes something therebetween.
  • the flow resistance in a plate interspace according to Fig. 5 for a flow with the direction 21 becomes also essentially larger than the flow resistance in a plate interspace according to Fig. 4 irrespective of the direction of the flow in that interspace.
  • Fig. 6 there are shown two heat exchange plates 24 and 25 equally embossed.
  • the only thing that differs these plates from the plates 12 and 13, respectively, in Fig. 2 is the design of the secondary heat exchange parts of the plates.
  • the different heat exchange parts of the plates 24 and 25 have been denoted 1b, 2b and 3b in Fig. 6.
  • the ports of the plates have been denoted 4b, 5b, 6b and 7b, and two gaskets have been denoted 26 and 27, respectively.
  • the ridges and the valleys in each of the secondary heat exchange parts 2b and 3b are symmetrically designed with regard to the centre line M of the plates.
  • the ridges form an angle of about 45° with the centre line M in the part 2b as well as in the part 3b, while on the other side of the centre line M the ridges in both parts 2b and 3b form an angle of about 135° with the centre line.
  • the different design of the secondary heat exchange parts of the plates 24 and 25 does not materially influence the flow reeis tance received in a plate interspace formed by these plates in comparison with the flow resistance received in a plate interspace formed by the plates 12 and 13 in Fig. 2.
  • the ridges in the secondary heat exchange parts of the plates will intersectingly rest against each other under right angles and in both cases the ridges of one plate form an angle of 45° and the ridges of the other plate an angle of 135° with the centre line M of the plates.
  • the division of the embossing pattern in the secondary heat exchange part is in both embodiments according to Figs. 2 and 6 essentially the same as that of the embossing pattern in the primary heat exchange part.
  • the ridges on one side of the centre line M can form an angle of 90° with this one, while the ridges on the other side of the centre line M form another angle or extend parallel with this one.

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)
  • Polishing Bodies And Polishing Tools (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Power Steering Mechanism (AREA)

Abstract

Une plaque d'échangeur thermique comporte une partie d'échange thermique primaire (1b), deux parties d'échange thermique secondaire (2b, 3b) placées de chaque côté de celle-ci et quatre trous ou orifices (4b, 5b, 6b, 7b). Deux des orifices sont situés sur l'une des parties d'échange thermique secondaire à la même distance, mais de chaque côté d'une ligne médiane (M) de la plaque. Les deux autres orifices sont situés d'une manière correspondante sur l'autre partie d'échange thermique secondaire. Toutes les parties d'échange thermique (1b, 2b, 3b) de la plaque comportent des crêtes et des dépressions embouties dans la plaque et disposées de telle manière que, lorsque deux plaques sont mises l'une contre l'autre, l'une étant tournée à 180o par rapport à l'autre, les crêtes d'une plaque reposent contre les crêtes de l'autre plaque. Au moins les crêtes et les dépressions des parties d'échange thermique secondaire (2b, 3b) sont embouties de telle manière que leur volume est essentiellement le même de chaque côté de la plaque. Dans une plaque de ce type, chacune des deux parties d'échange thermique secondaire est dotée de crêtes et de vallées formant un angle avec la ligne médiane (M) de la plaque. Cet angle (ou ces angles) diffère de l'angle (des angles) que les crêtes et les dépressions de la partie d'échange thermique primaire (1b) de la plaque forment avec la ligne médiane (M). En outre, les crêtes et les dépressions de la plaque déterminent de tels angles avec la ligne médiane (M) que, dans un espace de plaque, ils provoquent une réduction de la résistance au flux dans les zones des parties d'échange thermique secondaire (2b, 3b) des plaques, des deux côtés de la ligne médiane (M), par rapport à la zone de la partie d'échange thermique primaire (M) des plaques.
EP85900237A 1983-12-08 1984-12-05 Plaque d'echangeur thermique Expired EP0164391B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85900237T ATE28511T1 (de) 1983-12-08 1984-12-05 Waermeaustauscherplatte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8306795 1983-12-08
SE8306795A SE8306795D0 (sv) 1983-12-08 1983-12-08 Vermevexlarplatta

Publications (2)

Publication Number Publication Date
EP0164391A1 true EP0164391A1 (fr) 1985-12-18
EP0164391B1 EP0164391B1 (fr) 1987-07-22

Family

ID=20353653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85900237A Expired EP0164391B1 (fr) 1983-12-08 1984-12-05 Plaque d'echangeur thermique

Country Status (9)

Country Link
EP (1) EP0164391B1 (fr)
JP (1) JPS61500626A (fr)
AT (1) ATE28511T1 (fr)
BR (1) BR8407210A (fr)
DE (1) DE3464961D1 (fr)
DK (1) DK359285D0 (fr)
NO (1) NO853123L (fr)
SE (1) SE8306795D0 (fr)
WO (1) WO1985002670A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE458805B (sv) * 1985-06-06 1989-05-08 Reheat Ab Plattvaermevaexlare, vari varje platta aer uppdelad i fyra omraaden med sinsemellan olika riktning paa korrugeringarna
JP2547231B2 (ja) * 1986-10-22 1996-10-23 アルフア‐ラヴアル サーマル アーベー 二重壁構造のプレート型熱交換器とその製造方法
DE4020735A1 (de) * 1990-06-29 1992-01-02 Schmidt Bretten W Gmbh Plattenwaermeaustauscher
JP2007500836A (ja) 2003-08-01 2007-01-18 ベール ゲーエムベーハー ウント コー カーゲー 熱交換器およびその製造方法
SE526831C2 (sv) * 2004-03-12 2005-11-08 Alfa Laval Corp Ab Värmeväxlarplatta och plattpaket
SE528879C2 (sv) * 2005-07-04 2007-03-06 Alfa Laval Corp Ab Värmeväxlarplatta, par av två värmeväxlarplattor samt plattpaket för plattvärmeväxlare
CN1837718A (zh) 2006-03-09 2006-09-27 缪志先 肋板式换热器
JP5819592B2 (ja) * 2010-06-16 2015-11-24 三菱電機株式会社 プレート式熱交換器及びヒートポンプ装置
JP5661119B2 (ja) 2010-11-12 2015-01-28 三菱電機株式会社 プレート式熱交換器及びヒートポンプ装置
JP5538344B2 (ja) * 2011-11-09 2014-07-02 三菱電機株式会社 プレート式熱交換器及びヒートポンプ装置
US20190011193A1 (en) * 2016-01-13 2019-01-10 Hisaka Works, Ltd. Plate heat exchanger
SE541591C2 (en) * 2016-02-24 2019-11-12 Alfa Laval Corp Ab A heat exchanger plate for a plate heat exchanger, and a plate heat exchanger

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE342691B (fr) * 1970-01-21 1972-02-14 Uk Ni Konstr I Khim Mash
GB1339542A (en) * 1970-03-20 1973-12-05 Apv Co Ltd Plate heat exchangers
SE365609B (fr) * 1971-10-01 1974-03-25 Alfa Laval Ab
JPS4875785A (fr) * 1972-01-13 1973-10-12
JPS5154972A (en) * 1974-11-06 1976-05-14 Ichigoro Sekine Kogosei kokangensei biseibutsuno renzokubaiyoho
DE2552335A1 (de) * 1975-11-21 1977-06-08 Impulsa Veb K Waermeuebertragungsplatten
IT1055235B (it) * 1976-02-12 1981-12-21 Fischer H Scambiatore di calore a piastre formato da piastre aventi forme diverse
JPS5320481A (en) * 1976-08-06 1978-02-24 Nakajima Sakao Light transporting method applicable to photochemically reactive cultivation and like
SE411952B (sv) * 1978-07-10 1980-02-11 Alfa Laval Ab Vermevexlare innefattande ett flertal i ett stativ inspenda vermevexlingsplattor
SE415928B (sv) * 1979-01-17 1980-11-10 Alfa Laval Ab Plattvermevexlare
DE2934328C2 (de) * 1979-08-24 1982-04-29 Stephan Dipl.-Chem. Dr.rer.nat. 8000 München Nees Verfahren zur Kultivierung matrixgebundener biologischer Zellsysteme sowie Vorrichtung zur Ausübung des Verfahrens
DE3141161C2 (de) * 1981-10-16 1984-04-26 W. Schmidt GmbH & Co KG, 7518 Bretten Plattenwärmeaustauscher

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8502670A1 *

Also Published As

Publication number Publication date
ATE28511T1 (de) 1987-08-15
SE8306795D0 (sv) 1983-12-08
DE3464961D1 (en) 1987-08-27
JPS61500626A (ja) 1986-04-03
BR8407210A (pt) 1985-11-26
DK359285A (da) 1985-08-07
NO853123L (no) 1985-10-07
DK359285D0 (da) 1985-08-07
WO1985002670A1 (fr) 1985-06-20
EP0164391B1 (fr) 1987-07-22

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