EP0164391A1 - Heat exchanger plate. - Google Patents
Heat exchanger plate.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
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.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85900237T ATE28511T1 (en) | 1983-12-08 | 1984-12-05 | HEAT EXCHANGER PLATE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8306795A SE8306795D0 (en) | 1983-12-08 | 1983-12-08 | VERMEVEXLARPLATTA |
SE8306795 | 1983-12-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0164391A1 true EP0164391A1 (en) | 1985-12-18 |
EP0164391B1 EP0164391B1 (en) | 1987-07-22 |
Family
ID=20353653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85900237A Expired EP0164391B1 (en) | 1983-12-08 | 1984-12-05 | Heat exchanger plate |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0164391B1 (en) |
JP (1) | JPS61500626A (en) |
AT (1) | ATE28511T1 (en) |
BR (1) | BR8407210A (en) |
DE (1) | DE3464961D1 (en) |
DK (1) | DK359285A (en) |
NO (1) | NO853123L (en) |
SE (1) | SE8306795D0 (en) |
WO (1) | WO1985002670A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE458805B (en) * | 1985-06-06 | 1989-05-08 | Reheat Ab | PLATE HEAT EXCHANGER, EVERY PLATE IS DIVIDED IN THE FOUR AREAS WITH SINCE BETWEEN DIFFERENT DIRECTIONS ON THE CORRUGATIONS |
WO1988003253A1 (en) * | 1986-10-22 | 1988-05-05 | Alfa-Laval Thermal Ab | Plate heat exchanger with a double-wall structure |
DE4020735A1 (en) * | 1990-06-29 | 1992-01-02 | Schmidt Bretten W Gmbh | HEAT EXCHANGER |
CN1833153B (en) * | 2003-08-01 | 2012-04-04 | 贝洱两合公司 | Heat exchanger and method for the production thereof |
SE526831C2 (en) * | 2004-03-12 | 2005-11-08 | Alfa Laval Corp Ab | Heat exchanger plate and plate package |
SE528879C2 (en) | 2005-07-04 | 2007-03-06 | Alfa Laval Corp Ab | Heat exchanger plate, pair of two heat exchanger plates and plate package for plate heat exchanger |
CN1837718A (en) | 2006-03-09 | 2006-09-27 | 缪志先 | Fin-plate type heat exchanger |
JP5819592B2 (en) * | 2010-06-16 | 2015-11-24 | 三菱電機株式会社 | Plate heat exchanger and heat pump device |
WO2012063355A1 (en) | 2010-11-12 | 2012-05-18 | 三菱電機株式会社 | Plate heat exchanger and heat pump device |
JP5538344B2 (en) * | 2011-11-09 | 2014-07-02 | 三菱電機株式会社 | Plate heat exchanger and heat pump device |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE342691B (en) * | 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 (en) * | 1971-10-01 | 1974-03-25 | Alfa Laval Ab | |
JPS4875785A (en) * | 1972-01-13 | 1973-10-12 | ||
JPS5154972A (en) * | 1974-11-06 | 1976-05-14 | Ichigoro Sekine | Kogosei kokangensei biseibutsuno renzokubaiyoho |
DE2552335A1 (en) * | 1975-11-21 | 1977-06-08 | Impulsa Veb K | Heat exchanger plates for liquids - have corrugations setting up channels ensuring full width uniformity of flow speed |
IT1055235B (en) * | 1976-02-12 | 1981-12-21 | Fischer H | PLATE HEAT EXCHANGER FORMED BY PLATES HAVING DIFFERENT SHAPES |
JPS5320481A (en) * | 1976-08-06 | 1978-02-24 | Nakajima Sakao | Light transporting method applicable to photochemically reactive cultivation and like |
SE411952B (en) * | 1978-07-10 | 1980-02-11 | Alfa Laval Ab | HEAT EXCHANGER INCLUDING A MULTIPLE IN A STATUE INSERTED SWITCHING PLATE |
SE415928B (en) * | 1979-01-17 | 1980-11-10 | Alfa Laval Ab | PLATTVERMEVEXLARE |
DE2934328C2 (en) * | 1979-08-24 | 1982-04-29 | Stephan Dipl.-Chem. Dr.rer.nat. 8000 München Nees | Method for cultivating matrix-bound biological cell systems and device for carrying out the method |
DE3141161C2 (en) * | 1981-10-16 | 1984-04-26 | W. Schmidt GmbH & Co KG, 7518 Bretten | Plate heat exchanger |
-
1983
- 1983-12-08 SE SE8306795A patent/SE8306795D0/en unknown
-
1984
- 1984-12-05 JP JP60500026A patent/JPS61500626A/en active Pending
- 1984-12-05 AT AT85900237T patent/ATE28511T1/en not_active IP Right Cessation
- 1984-12-05 WO PCT/SE1984/000413 patent/WO1985002670A1/en active IP Right Grant
- 1984-12-05 DE DE8585900237T patent/DE3464961D1/en not_active Expired
- 1984-12-05 BR BR8407210A patent/BR8407210A/en unknown
- 1984-12-05 EP EP85900237A patent/EP0164391B1/en not_active Expired
-
1985
- 1985-08-07 DK DK359285A patent/DK359285A/en not_active Application Discontinuation
- 1985-08-07 NO NO853123A patent/NO853123L/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO8502670A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1985002670A1 (en) | 1985-06-20 |
DE3464961D1 (en) | 1987-08-27 |
EP0164391B1 (en) | 1987-07-22 |
JPS61500626A (en) | 1986-04-03 |
BR8407210A (en) | 1985-11-26 |
ATE28511T1 (en) | 1987-08-15 |
DK359285D0 (en) | 1985-08-07 |
DK359285A (en) | 1985-08-07 |
SE8306795D0 (en) | 1983-12-08 |
NO853123L (en) | 1985-10-07 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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