US3809156A - Heat exchanging plate with pressed ridges - Google Patents

Heat exchanging plate with pressed ridges Download PDF

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Publication number
US3809156A
US3809156A US00295428A US29542872A US3809156A US 3809156 A US3809156 A US 3809156A US 00295428 A US00295428 A US 00295428A US 29542872 A US29542872 A US 29542872A US 3809156 A US3809156 A US 3809156A
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US
United States
Prior art keywords
plate
ridges
groove
heat exchanging
pressed
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
US00295428A
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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 US3809156A publication Critical patent/US3809156A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

  • the present invention relates to heat exchanging plates of the kind having a pressed marginal groove for a gasket intended to seal between the plate and an adjacent heat exchanging plate in a plate heat exchanger, and also having on both sides pressed ridges extending side-by-side and intended to contact and cross similar ridges on adjacent plates in the heat exchanger, to serve as spacing means between the plates.
  • the contact points created between two plates of this kind in a plate heat exchanger must be able to transfer (without substantial deformation of the plate material) forces between the plates caused by clamping them together in a plate heat exchanger, and caused by pressure differences between the heat exchanging media treated in the heat exchanger.
  • the strength of the plate at these contact points may therefore determine the thickness of the plate material, the form of the ridge cross-section, and the allowable pressure difference between the heat exchanging media in the plate heat exchanger.
  • the ridges formed in the plate by a pressing opera tion merge at their ends through sloping end portions into parts of the plate adjacent the said gasket groove and which are free from ridges.
  • plate parts of this kind which are free from ridges and each of which extends across several ridges on the plate, there is generally no support against the adjacent plates in a plate heat exchanger.
  • Those contact points of a plate which are situated nearest a part like this must therefore transfer greater forces than contact points located in the middle of a field of pressed ridges. Forces which really should be transferred by the plate part free from ridges must thus be transferred through said nearest contact points instead.
  • the plate Since the plate must be dimensioned and formed with regard to the greatest forces that may arise, the plate will have an optimumdirnension only in the areas of the few contact points situated nearestthe plate portions which are free from ridges, while the rest of the plate (i.e., the main part of the plate) will be overdimensioned.
  • An object of the present invention is to provide a plate over which there is a more even distribution of the forces to be transferred through all of the contact points, so that the main part of the plate may have at least substantially an optimum dimension.
  • FIGS. 1 and la are face views of two plates of the kind involved here;
  • FIG. 2 is a fragmentary sectional view of two such plates as paired to form points of contact between them in a plate heat exchanger;
  • FIG. 3 is a face view of a further plate of the kind involved here;
  • FIGS. 4a and 4b are plan and cross-sectional views, respectively, of part of a previously known plate
  • FIG. 5a is a plan view of part of a plate incorporating various forms of the invention.
  • FIGS. 5b, 6, 7, 8 and 9 are cross-sectional views on the lines -VII-Vll, VIII-VIII, IX-IX, X-X and Xl-XI, respectively, in FIG. 5a.
  • the two plates 1 and 2 as shown in FIGS/1 and la are identical (not necessary), and one of them is turned 180 relative to the other in the plane of the drawing.
  • Each plate has ridges formed on both sides by a pressing operation.
  • the ridges visible in FIGS. 1 and la are designated 3.
  • the ridges situated on the other side of each plate are formed by the back sides of the troughs located between the ridges 3 and which are designated 4.
  • the two plates have openings 58 serving as inlets and outlets for two heat exchanging media flowing to and from respective plate interspaces which are formed when several plates are assembled in a conventional manner in a plate heat exchanger.
  • FIG. 2 there are shown fragments of the plates 1 and 2 placed relative to each other as in a plate heat exchanger. As can be seen, contact points 9 are created between the plates, where the ridges of the platescross and contact each other.
  • plates of the kind shown in FIGS. 1 and la are not entirely covered by ridges formed by pressing.
  • FIG. 3 there is shown with broken lines a narrow portionl0 of a plate.
  • This narrow portion 10 extending along the long sides of theplate and close to the inlet and outlet openings 5-8, is free from ridges for the reason that the plate in this area'has a groove for a socalled marginal gasket-The. latter (not shown) is intended to close from the surrounding atmosphere the interspace formed between the two plates when they abut each other in a plate heat exchanger.
  • the area surrounded by the narrow portion 10 is provided with the ridges (not shown).
  • a groove 22 is pressed near the edge of the previously known plate shown in FIGS. 4a and 4b, this groove serving to receive a marginal gasket (not shown).
  • the crests of the ridges 3 are situated in the same plane as the said portion 10, and the ridges 3 therefore may be said to extend all the way to the groove '22.
  • the ridges 4 on the other side of the plate extend only to the portion 10, however, and the ridges 4 therefore will determine how near the gasket groove 22' it is possible to obtain contact points between two plates in a plate heat exchanger.
  • the smallest distance between the bottom of the gasket groove 22 and a contact point of this kind is marked C in FIG. 4b. The greater this distance is, the greater the unsupportedplate portion will be, and the greater the force to be transferred at the contact point.
  • FIG. 5a shows five different embodiments I-V of the region of the gasket groove in a plate according to the invention.
  • the ridges on the upper face of the plate are designated 18, while the ridges on the lower face are designated 19, the latter ridges being formed by the valleys between the upper ridges 18.
  • the gasket groove is designated 23.
  • FIG. 5a has been kept as large as the width of the corresponding portion 10 in FIG. 4a while in the other embodiments I-IV the width of the same portion 24 has been reduced to a minimum.
  • FIG. 5b there is shown a cross-section of the embodiment V along the line VII- VII in FIG. 5a, while in FIG. 6 there is shown the corresponding cross-section along the lines VIII-VIII in FIG. 5a, which is common to the other embodiments l-IV.
  • the smallest distance obtainable between the bottom of the gasket groove 23 and the nearest contact point between two plates in a plate heat exchanger is marked D. As can be seen, this distance D is smaller than the corresponding distance C in the prior art plate of FIGS. 4a and 4b.
  • a broken line 25 in FIG. 5b shows where the ridges 4 of the prior art plate end at the region of the gasket groove. Consequently,
  • the contact points nearest the gasket groove 23 in the plate according to the invention do not need to transfer such great forces as the contact points nearest the gasket groove 22 in the prior art plate.
  • FIG. 5a the embodiments II, III and IV are shown with grid-like areas 26, 27 and 28, respectively. These areas are other portions of the plate which, like theportion 24, are situated at a lever half way between the planes extending through the crests of the ridges l8 and 19 situated on opposite sides of the plate. In the embodiments II and III, these areas 26 and 27, respectivley, are directly connected in the same plane with the portions 24, while in the embodiment IV there is a small interspace between the area 28 and the portion 24.
  • a heat exchanging plate having a peripheral part provided with a pressed groove for receiving a gasket adapted to seal between the plate and an adjacent heat exchanging plate in a plate heat exchanger, said groove having opposing side walls which are substantially continuous, the plate also having on each side thereof pressed ridges extending in side-by-side relation for crossing and contacting similar ridges on adjacent plates in said heat exchanger to form spacing means between the plates, the plate being characterized in that the ridges located on the same side of the plate as the gasket-receiving groove extend all the way to said groove, whereby the end surfaces of said sameside ridges form parts of said side wall of said groove, the ridges on the opposite side of the plate merging into plate portions between said opposite-side ridges and said groove, said plate portions being situated between the two planes extending through the crests of said same-side and said opposite-side ridges, respectively.
  • a heat exchanging plate according to claim 1 in which said plate portions are situated half way between said two planes.

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)
  • Physical Or Chemical Processes And Apparatus (AREA)
US00295428A 1971-10-08 1972-10-06 Heat exchanging plate with pressed ridges Expired - Lifetime US3809156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE12730/71A SE356123B (no) 1971-10-08 1971-10-08

Publications (1)

Publication Number Publication Date
US3809156A true US3809156A (en) 1974-05-07

Family

ID=20296214

Family Applications (1)

Application Number Title Priority Date Filing Date
US00295428A Expired - Lifetime US3809156A (en) 1971-10-08 1972-10-06 Heat exchanging plate with pressed ridges

Country Status (8)

Country Link
US (1) US3809156A (no)
JP (1) JPS514706B2 (no)
CA (1) CA964641A (no)
DE (1) DE2246031C2 (no)
FR (1) FR2156131A1 (no)
GB (1) GB1366018A (no)
SE (1) SE356123B (no)
SU (1) SU467527A3 (no)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815534A (en) * 1987-09-21 1989-03-28 Itt Standard, Itt Corporation Plate type heat exchanger
CN109813159A (zh) * 2017-11-22 2019-05-28 丹佛斯有限公司 用于板式热交换器的传热板和具有传热板的板式热交换器
US10989486B2 (en) 2016-03-30 2021-04-27 Alfa Laval Corporate Ab Heat transfer plate and plate heat exchanger comprising a plurality of such heat transfer plates

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE423750B (sv) * 1977-01-14 1982-05-24 Munters Ab Carl Anordning vid vermevexlare for sensibel och/eller latent vermeoverforing
GB2145511B (en) * 1983-08-23 1986-09-03 Apv Int Ltd Improved heat transfer apparatus
DE4416391A1 (de) * 1994-05-10 1995-11-16 Schmidt Bretten Gmbh Plattenwärmetauscher
DE4431413C2 (de) * 1994-08-24 2002-10-10 Rehberg Michael Plattenwärmetauscher für flüssige und gasförmige Medien
DE19959780B4 (de) * 1999-04-12 2004-11-25 Rehberg, Peter, Dipl.-Ing. Plattenwärmeübertrager
DE19917761C1 (de) * 1999-12-07 2001-01-18 Peter Rehberg Plattenwärmeübertrager
JP2011106764A (ja) 2009-11-19 2011-06-02 Mitsubishi Electric Corp プレート式熱交換器及びヒートポンプ装置
DE102013220313B4 (de) 2013-10-08 2023-02-09 Mahle International Gmbh Stapelscheiben-Wärmetauscher

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2181230A (en) * 1937-11-05 1939-11-28 York Ice Machinery Corp Heat exchange apparatus
US2814469A (en) * 1953-10-29 1957-11-26 Separator Ab Plate for plate heat exchangers
US3244227A (en) * 1963-07-11 1966-04-05 Apv Co Ltd Plate type heat exchangers
US3661203A (en) * 1969-11-21 1972-05-09 Parkson Corp Plates for directing the flow of fluids

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2181230A (en) * 1937-11-05 1939-11-28 York Ice Machinery Corp Heat exchange apparatus
US2814469A (en) * 1953-10-29 1957-11-26 Separator Ab Plate for plate heat exchangers
US3244227A (en) * 1963-07-11 1966-04-05 Apv Co Ltd Plate type heat exchangers
US3661203A (en) * 1969-11-21 1972-05-09 Parkson Corp Plates for directing the flow of fluids

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815534A (en) * 1987-09-21 1989-03-28 Itt Standard, Itt Corporation Plate type heat exchanger
US10989486B2 (en) 2016-03-30 2021-04-27 Alfa Laval Corporate Ab Heat transfer plate and plate heat exchanger comprising a plurality of such heat transfer plates
CN109813159A (zh) * 2017-11-22 2019-05-28 丹佛斯有限公司 用于板式热交换器的传热板和具有传热板的板式热交换器
EP3489605A1 (en) * 2017-11-22 2019-05-29 Danfoss A/S Heat transfer plate for plate heat exchanger and plate heat exchanger with the same
RU2697283C1 (ru) * 2017-11-22 2019-08-13 Данфосс А/С Теплопередающая пластина пластинчатого теплообменника и пластинчатый теплообменник с такой пластиной
CN109813159B (zh) * 2017-11-22 2021-02-02 丹佛斯有限公司 用于板式热交换器的传热板和具有传热板的板式热交换器

Also Published As

Publication number Publication date
DE2246031C2 (de) 1981-09-24
DE2246031A1 (de) 1973-04-19
SU467527A3 (ru) 1975-04-15
SE356123B (no) 1973-05-14
FR2156131A1 (no) 1973-05-25
GB1366018A (en) 1974-09-04
JPS514706B2 (no) 1976-02-13
JPS4846943A (no) 1973-07-04
CA964641A (en) 1975-03-18

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