US3792730A - Plate heat exchanger - Google Patents

Plate heat exchanger Download PDF

Info

Publication number
US3792730A
US3792730A US00340044A US3792730DA US3792730A US 3792730 A US3792730 A US 3792730A US 00340044 A US00340044 A US 00340044A US 3792730D A US3792730D A US 3792730DA US 3792730 A US3792730 A US 3792730A
Authority
US
United States
Prior art keywords
plate
ridges
furrow
ridge
adjacent
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
Application number
US00340044A
Other languages
English (en)
Inventor
J Andersson
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 AB
Original Assignee
Alfa Laval 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
Application filed by Alfa Laval AB filed Critical Alfa Laval AB
Application granted granted Critical
Publication of US3792730A publication Critical patent/US3792730A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F28F3/08—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
    • 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
    • F28F3/10—Arrangements for sealing the margins

Definitions

  • a gasket groove adjacent the distribution sur- Mar 14 1972 Sweden 7 4 3206/72 face has a side wall formed by one of the ridges and merging intothe bottom of the gasket groove along a 52 us.
  • Int. Cl F28f 3/08 from the groove is Provided with recesses forming [581 Field of Search 165/166 167 tehsihhsofthe hQhom hhmw this ridge,
  • the present invention relates to plate heat exchangers of the type in which each plate has a distribution surface with furrows and ridges which extend between the inlet opening and the main heat exchanging surface of the plate, the plate being provided with a gasket groove situated adjacent the distribution surface and which has a side wall formed by one of the ridges and merging into the bottom of the gasket groove along a continuous line, so that this one ridge continuously supports a gasket in the groove. Also, the ridges of each plate cross and abut the ridges between the furrows on the opposing side of an adjacent plate, but
  • the principal object of the present invention is to provide a plate heat exchanger of this type wherein the plates have an improved arrangement for lending support to the bottoms of these gasket grooves.
  • the ridge forming a side wall of the gasket groove in each plate is provided, on the side of the ridge remote from this groove, with recesses so that the bottom of the adjacent furrow in the distribution surface acquires extensions in the direction toward the gasket groove.
  • These recesses and corresponding extensions are aligned with the regions where the bottom of the aforementioned furrow is supported by the ridges of the adjacent plate, and the latter ridges are formed so that they extend sufficiently to engage these extensions of the bottom of the furrow.
  • FIG. I is a perspective view of two heat exchanging plates of the type described and which represent prior art
  • FIG. 2 is a similar view of parts of these plates in more detail
  • FIG. 3 is an enlarged sectional view on line III-III in FIG. 1;
  • FIG. 4 is a plan view of part of a plate made according to the invention.
  • FIG. 5 is an enlarged sectional view of parts of an assembly of three plates of the kind shown in FIG. 4, the sectional view being on the line VV in FIG. 4;
  • FIGS. 6 and 7 are views similar to FIG. 4 but showing other embodiments of the invention.
  • FIG. 8 is an enlarged section view of parts of an assembly of three plates of the kind shown in FIG. 7, the sectional view being on the line VIIIVIII in FIG. 7.
  • the plates A and B each have four openings 1-4 and 11-14, respectively, and a gasket 5 and 15, respectively, situated in a groove extending along the periphery of the plate outside the said openings.
  • the heat transferring portion of each plate is divided into three areas 6-8 and 16-18, respectively, of which the central area 7 and 17, respectively, constitutes the main heat exchanging surface of the plate, where the most part of theheat transfer between the twomedia takes place.
  • the plate A is intended to contact with'its rear side the front side of the plate B.
  • a heat exchanging medium is intended to flow from the opening 1 to the opening 3, while on the front side of the plate B (the rear side of the plate A) another heat exchanging medium is intended to flow from the opening 14 to the opening 12 (from the opening 4 to the opening 2) or in the reverse direction.
  • the openings 2 and 4 are separated from the heat transferring portion of the plate by means of gaskets 9 and 10, respectively; and on the front side of the plate B, the openings 11 and 13 are separated from the heat transferring portion of this plate by means of gaskets 19 and 20, respectively.
  • FIG. 2 there is shown a more detailed view of the distribution surfaces 6 and 16 of the plates A and B, respectively.
  • the ditribution surface 6 of the plate is provided with parallel ridges 21, between which are formed furrows 22. Through these furrows, which are wider than the ridges, heat exchanging medium entering through the opening 1 is adapted to be distributed over the entire width of the main heat exchanging surface 7 of the plate.
  • the distribution surface 16 of the plate B corresponding ridges 23 and furrows 24 are formed, which extend so that they form an angle with the ridges 21 and the furrows 22 of the plate A. Therefore, the ridges 23 of the plate B will cross and abut the ridges formed on the rear side of the plate A by the furrows 22.
  • the plate A has a planar portion 25. This is adapted to be put into sealing abutment against the gasket 19 of the plate B when the plates A and B are put together.
  • a similar planar portion 26 is provided on the plate B at the ends of the ridges 23 nearest the opening 12 and is adapted to seal against the gasket 9 of the next rear plate (not shown).
  • FIG. 3 there is shown a cross-section along the line IIIIII in FIG. 1 through the plates A and B and a further plate C, the plate C being of the same kind as plate B.
  • Shown in Cross-section are two of the ridges of the plate A, designated 21 and 21a, and a furrow 22' formed between these ridges.
  • the ridge 21a forms a side wall of the previously mentioned groove in which the gasket 9 is situated, the bottom of this groove being designated 27.
  • the plate B situated below the plate A, is shown with one of the previously mentioned ridges 23, which cross and abut the underneath side of the furrow 22 of the plate A.
  • the ridge 23 terminates at the previously mentioned planar portion 26 of the plate B.
  • a corresponding planar portion 28 of the plate C abuts sealingly against the upper side of the gasket 9.
  • a heat exchanging medium entering through the opening 1 of the plate A (FIG. 2) will flow through the furrows 22 in the interspace between the plates A and C (FIG. 3), i.e., perpendicular to the plane of the drawing in FIG. 3.
  • the other heat exchanging medium will flow parallel to the ridges 23 of the plate B, as indicated by arrows 29 in FIG. 3.
  • the art has resorted to welding the plates of this kind, along the planar portions 25, 26and 28, supports such as undulated strips which, when the plates are pressed together, support the bottoms of the gasket grooves in the adjacent plates without substantially hindering the flow of a medium in the plate interspaces where the supports are situated.
  • supports such as undulated strips which, when the plates are pressed together, support the bottoms of the gasket grooves in the adjacent plates without substantially hindering the flow of a medium in the plate interspaces where the supports are situated.
  • the use of such supports complicates production of the heat exchanging plates.
  • At the regions of the supports there also may be formed pockets which are undesirable from the hygienic point of view.
  • solid constituents in the heat exchanging medium such as impurities, fibres, etc., may deposit on the supports and constitute obstacles to the medium flow.
  • the present invention provides an improved solution to the problem of non-support for certain portions of the plates in a plate heat exchanger of the abovedescribed kind.
  • the solution resides in the feature of forming each plate in the areas nearest the gasket grooves in a way such that the need of a special support of the abovementioned kind for the bottoms of these grooves is substantially decreased.
  • the invention is characterized in that the ridge located in the distribution surface of each plate and forming the side wall of the gasket groove is provided, on its side remote from the gasket groove, with recesses so formed that the bottom of the distribution furrow nearest this ridge acquires extensions in the direction toward the gasket groove at the places where this furrow bottom'is supported by the ridges of the adjacent plate, which ridges are formed so that they extend up to andengage these extensions of the furrow bottom.
  • the ridge forming the side wall of the gasket groove is both narrower and lower opposite to the places where the nearest furrow is extended.
  • the wall portion of the ridge in question, which is directed transversely to the gasket groove, will thus be enlarged.
  • the lower portions of the ridge have the same extension in the longitudinal direction of the ridge as the extended portions of the said furrow. Between the extended portions of the furrow, the latter may have shallower portions with an extension such that the deep portions of the furrow are constituted only by grooves extending across the furrow in the bottom of the latter.
  • the plate A shown in FIG. 2 has parallel ridges 21 separated by furrows 22 which extend from the opening 1 to the central portion of the plate.
  • the ridge situated nearest the gasket 9 forms a side wall of the groove for this gasket. This can be seen from FIG. 3 in which this ridge is designated 21a.
  • FIG. 4 is a view of a part of such a plate and where the bottom of the groove for the gasket 9 is designated 27, as in FIG. 3.
  • the ridge forming the side wall of the gasket groove, here designated 21b merges in the bottom 27 of the gasket groove along a continuous line, whereby the ridge will give a continuous support to the gasket situated in the gasket groove along the whole length of it.
  • the other side of the ridge 21b merges into a furrow in the ditribution surface of the plate, this furrow being designated 22a in FIG. 4.
  • the ridge 21b has several narrower portions 30 along its length. The furrow 22a at these places is thus extended in the direction toward the gasket groove, these extensions being designated 31 in FIG. 4.
  • broken lines indicate the extension of the ridges 23a of an adjacent plate, which ridges cross and abut the underneath side of the furrow 22a. These ridges designated 23a cross the furrow 22a at the very places where it is provided with extensions 31. The ridges 23a extend far enough to support the bottom of the furrow 22a and also the bottom of its extensions 31.
  • FIG. 5 the cross-section through three plates formed according to the invention is taken along the line V-V in FIG. 4, i.e., through one of the narrow portions 30 of the ridge 21b and the corresponding extension 31 of the furrow 22a.
  • FIG. 3 which shows plates formed according to prior art
  • a distance S is marked between the point where the'bottom 27 of the gasket groove merges into the ridge 21a and the point nearest the gasket groove where the furrow 22 situated on the other side of ridge 21a is supported on its underneath side by the ridges 23 of the adjacent plate.
  • the corresponding distance is designated L.
  • the distance L is substantially smaller than the distance S, which means that a plate formed according to the invention is better supported by the adjacent plate in the area of the gasket 9 than a plate formed according to prior art.
  • the ridge 21b is lower at its narrow portions 30 than at the other portions of its length. Owing to this particular shape of the ridge, parts of its walls will acquire an extension substantially across the longitudinal direction of the ridge. These parts of the ridge walls, designated 32, will make the plate rigid against deflection in the direction transversely to the ridge.
  • FIG. 6 there is shown an alternative embodiment of the ridge 21b forming the side wall of the gasket groove.
  • Each of the narrower portions 30a of the ridge 21b there shown has a length such that it extends past two of the crossing ridges 23a of the adjacent plate.
  • FIG. 7 there is shown a plate at which the ridge 21b situated nearest the gasket groove has the same form as the ridge 21b in FIG. 4, while the furrow 22a extending beside the ridge has shallower portions 33 between the places where its bottom is supported by the ridges 23a of the adjacent plate.
  • the surface 32 shown in FIG. 5 has acquired an extension 34 which extends across the whole width of the furrow 22a. Due to the surface formed by the surfaces 32 and 34 together, a plate of this FIG. 8 embodiment will be especially rigid against deflection in the direction transversely to the gasket groove.
  • the plate heat exchanger comprising paired plates each having a main heat exchanging portion, an inlet opening for a heat exchanging medium, and a distributing portion formed on one surface of the plate with furrows extending between said opening and main portion and with parallel ridges defining said furrows, the ridges and furrows on said one surface forming furrows and ridges, respectively, on the other surface of the plate, each said plate having outside its distributing portion a gasket groove partly defined by a side wall of an adjacent said ridge of the plate, said side wall merging into the bottom of the gasket groove along a continuous line, whereby a gasket situated in the groove will have a continuous support from said adjacent ridge, the ridges on one surface of one of said plates being arranged to cross and abut the ridges on the opposing surface of the other plate but extending short of supporting abutment with the bottom of the gasket groove of said other plate, the improvement wherein said adjacent ridge of each plate is provided, in its side wall remote from said gas
  • each said low portion of the ridge has the same extension in the longitudinal direction of the ridge as the opposite said extension.

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)
US00340044A 1972-03-14 1973-03-12 Plate heat exchanger Expired - Lifetime US3792730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE03206/72A SE361356B (hr) 1972-03-14 1972-03-14

Publications (1)

Publication Number Publication Date
US3792730A true US3792730A (en) 1974-02-19

Family

ID=20261610

Family Applications (1)

Application Number Title Priority Date Filing Date
US00340044A Expired - Lifetime US3792730A (en) 1972-03-14 1973-03-12 Plate heat exchanger

Country Status (9)

Country Link
US (1) US3792730A (hr)
JP (1) JPS5120744B2 (hr)
CA (1) CA976150A (hr)
DE (1) DE2309743C3 (hr)
FR (1) FR2175956B1 (hr)
GB (1) GB1386578A (hr)
IT (1) IT983526B (hr)
SE (1) SE361356B (hr)
SU (1) SU502614A3 (hr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014385A (en) * 1974-05-24 1977-03-29 The A.P.V. Company Limited Plate heat exchangers
US4063591A (en) * 1974-12-20 1977-12-20 The A.P.V. Company Limited Plate heat exchangers
US4146090A (en) * 1977-03-28 1979-03-27 Hisaka Works Ltd. Plate type heat exchanger
US4184542A (en) * 1976-04-16 1980-01-22 Hisaka Works, Ltd. Plate type condenser
US4815534A (en) * 1987-09-21 1989-03-28 Itt Standard, Itt Corporation Plate type heat exchanger
US4915165A (en) * 1987-04-21 1990-04-10 Alfa-Laval Thermal Ab Plate heat exchanger
US6073687A (en) * 1998-01-12 2000-06-13 Apv Heat Exchanger A/S Heat exchange plate having a reinforced edge structure
US6157077A (en) * 1998-09-29 2000-12-05 Mitsubishi Denki Kabushiki Kaisha Semiconductor device with plated heat sink and partially plated side surfaces
US20040011515A1 (en) * 2002-06-24 2004-01-22 Hitoshi Matsushima Plate type heat exchanger
WO2009080692A1 (en) * 2007-12-21 2009-07-02 Alfa Laval Corporate Ab Heat exchanger
US20160313071A1 (en) * 2013-12-10 2016-10-27 Swep International Ab Heat exchanger with improved flow
US20210131737A1 (en) * 2019-11-04 2021-05-06 Danfoss A/S Plate-type heat exchanger
US11333449B2 (en) * 2018-10-15 2022-05-17 Danfoss A/S Heat exchanger plate with strengthened diagonal area
US11460230B2 (en) 2015-10-20 2022-10-04 Danfoss A/S Method for controlling a vapour compression system with a variable receiver pressure setpoint

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE3339932A1 (de) * 1983-11-04 1985-05-15 Bayer Ag, 5090 Leverkusen Spaltwaermetauscher mit stegen
GB2174187B (en) * 1985-04-26 1989-06-28 Helmut Fischer A plate heat exchanger
DE19540271C1 (de) * 1995-10-28 1996-11-07 Gea Ecoflex Gmbh Plattenwärmetauscher
JP5253116B2 (ja) * 2008-12-01 2013-07-31 株式会社日阪製作所 プレート式熱交換器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814469A (en) * 1953-10-29 1957-11-26 Separator Ab Plate for plate heat exchangers
US2865613A (en) * 1954-02-25 1958-12-23 Rosenblads Patenter Ab Plate type heat-exchanger
US3244227A (en) * 1963-07-11 1966-04-05 Apv Co Ltd Plate type heat exchangers
US3532161A (en) * 1968-06-27 1970-10-06 Aqua Chem Inc Plate type heat exchanger
US3661203A (en) * 1969-11-21 1972-05-09 Parkson Corp Plates for directing the flow of fluids

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814469A (en) * 1953-10-29 1957-11-26 Separator Ab Plate for plate heat exchangers
US2865613A (en) * 1954-02-25 1958-12-23 Rosenblads Patenter Ab Plate type heat-exchanger
US3244227A (en) * 1963-07-11 1966-04-05 Apv Co Ltd Plate type heat exchangers
US3532161A (en) * 1968-06-27 1970-10-06 Aqua Chem Inc Plate type heat exchanger
US3661203A (en) * 1969-11-21 1972-05-09 Parkson Corp Plates for directing the flow of fluids

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014385A (en) * 1974-05-24 1977-03-29 The A.P.V. Company Limited Plate heat exchangers
US4063591A (en) * 1974-12-20 1977-12-20 The A.P.V. Company Limited Plate heat exchangers
US4184542A (en) * 1976-04-16 1980-01-22 Hisaka Works, Ltd. Plate type condenser
US4146090A (en) * 1977-03-28 1979-03-27 Hisaka Works Ltd. Plate type heat exchanger
US4915165A (en) * 1987-04-21 1990-04-10 Alfa-Laval Thermal Ab Plate heat exchanger
US4815534A (en) * 1987-09-21 1989-03-28 Itt Standard, Itt Corporation Plate type heat exchanger
US6073687A (en) * 1998-01-12 2000-06-13 Apv Heat Exchanger A/S Heat exchange plate having a reinforced edge structure
US6589815B1 (en) 1998-09-29 2003-07-08 Mitsubishi Denki Kabushiki Kaisha Method of manufacturing semiconductor device with plated heat sink by laser cutting
US6157077A (en) * 1998-09-29 2000-12-05 Mitsubishi Denki Kabushiki Kaisha Semiconductor device with plated heat sink and partially plated side surfaces
US20040011515A1 (en) * 2002-06-24 2004-01-22 Hitoshi Matsushima Plate type heat exchanger
US6926075B2 (en) * 2002-06-24 2005-08-09 Hitachi Air Conditioning Systems Co., Ltd. Plate type heat exchanger
WO2009080692A1 (en) * 2007-12-21 2009-07-02 Alfa Laval Corporate Ab Heat exchanger
AU2008340051B2 (en) * 2007-12-21 2011-09-22 Alfa Laval Corporate Ab Heat exchanger
US9217608B2 (en) 2007-12-21 2015-12-22 Alfa Laval Corporate Ab Heat exchanger
US20160313071A1 (en) * 2013-12-10 2016-10-27 Swep International Ab Heat exchanger with improved flow
US10837717B2 (en) * 2013-12-10 2020-11-17 Swep International Ab Heat exchanger with improved flow
US11460230B2 (en) 2015-10-20 2022-10-04 Danfoss A/S Method for controlling a vapour compression system with a variable receiver pressure setpoint
US11333449B2 (en) * 2018-10-15 2022-05-17 Danfoss A/S Heat exchanger plate with strengthened diagonal area
US20210131737A1 (en) * 2019-11-04 2021-05-06 Danfoss A/S Plate-type heat exchanger

Also Published As

Publication number Publication date
IT983526B (it) 1974-11-11
DE2309743B2 (de) 1979-09-20
SU502614A3 (ru) 1976-02-05
DE2309743A1 (de) 1973-10-04
SE361356B (hr) 1973-10-29
FR2175956B1 (hr) 1975-04-04
FR2175956A1 (hr) 1973-10-26
JPS5120744B2 (hr) 1976-06-28
JPS48102345A (hr) 1973-12-22
DE2309743C3 (de) 1980-05-29
GB1386578A (en) 1975-03-12
CA976150A (en) 1975-10-14

Similar Documents

Publication Publication Date Title
US3792730A (en) Plate heat exchanger
US3783090A (en) Heat exchanger plates
US4858685A (en) Plate-type heat exchanger
US4781248A (en) Plate heat exchanger
US5531269A (en) Plate heat exchanger for liquids with different flows
EP0047073B1 (en) Plate heat exchanger
JPH0514196B2 (hr)
US7168483B2 (en) Heat transfer plate, plate pack and plate heat exchanger
WO1983001998A1 (en) Heat exchanger plate
KR100232436B1 (ko) 플레이트형 열교환기
US5806584A (en) Heat exchanger with improved plates
US11156405B2 (en) Heat transfer plate and gasket
US11774191B2 (en) Heat transfer plate and a plate pack for a heat exchanger comprising a plurality of such heat transfer plates
US20030047303A1 (en) Heat transfer plate and plate pack for use in a plate heat exchanger
EP0061904B1 (en) Plate heat exchanger
US4307779A (en) Plate heat exchanger
ES368848A1 (es) Un intercambiador termico.
EP0183008B1 (en) Plate - stacked heat exchanger
BR0111899B1 (pt) trocador de calor, distribuidor para transferência ou distribuição de dois fluidos, e, combinação de um trocador de calor e um distribuidor.
RU2722078C1 (ru) Теплопередающая пластина и теплообменник, содержащий множество таких теплопередающих пластин
US3216494A (en) Heat exchanger plate
CA1048013A (en) Plate-type heat exchanger
US4359087A (en) Plate heat exchanger
EP0984239B1 (en) Heat exchanger
US2039216A (en) Plate heat exchanger