EP0386131B1 - Gegenstrom-wärmetauscher - Google Patents

Gegenstrom-wärmetauscher Download PDF

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Publication number
EP0386131B1
EP0386131B1 EP19890900222 EP89900222A EP0386131B1 EP 0386131 B1 EP0386131 B1 EP 0386131B1 EP 19890900222 EP19890900222 EP 19890900222 EP 89900222 A EP89900222 A EP 89900222A EP 0386131 B1 EP0386131 B1 EP 0386131B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
passages
exchanger according
channels
plates
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
EP19890900222
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0386131A1 (de
Inventor
Jürgen Richard Schukey
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.)
SITA Maschinenbau und Forschungs GmbH
Original Assignee
SITA Maschinenbau und Forschungs GmbH
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 SITA Maschinenbau und Forschungs GmbH filed Critical SITA Maschinenbau und Forschungs GmbH
Priority to AT89900222T priority Critical patent/ATE74200T1/de
Publication of EP0386131A1 publication Critical patent/EP0386131A1/de
Application granted granted Critical
Publication of EP0386131B1 publication Critical patent/EP0386131B1/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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • 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
    • F28D9/0012—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 apparatus having an annular form
    • F28D9/0018—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 apparatus having an annular form without any annular circulation of the heat exchange media
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10—Particular pattern of flow of the heat exchange media
    • F28F2250/104—Particular pattern of flow of the heat exchange media with parallel flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/356—Plural plates forming a stack providing flow passages therein
    • Y10S165/357—Plural plates forming a stack providing flow passages therein forming annular heat exchanger
    • Y10S165/358—Radially arranged plates

Definitions

  • the invention relates to a countercurrent heat exchanger with exchange surfaces consisting of sheets, which are arranged between inlet channels narrowing in the inlet direction and outlet channels widening in the outlet direction.
  • a known heat exchanger in which the distances between the heat exchanger surfaces are relatively small (US-A-4 042 018) is made from folded zigzag sheets.
  • This heat exchanger is relatively complicated and has the disadvantage that the fluids do not sweep over the exchange surfaces uniformly, but instead Search for the shortest route (dashed arrows on the left in FIG. 1 of the document) so that no optimal heat exchange takes place.
  • the object of the invention is to provide a simple heat exchanger that is very effective.
  • the solution according to the invention is that the sheets are arranged in stacks of individual sheets, that the exchange surfaces are arranged obliquely to the stacking direction and that two adjacent sheets on both sides of the stack include channels that alternate on the one side drain channels and inlet channels and on the on the other side form the corresponding inlet channels and outlet channels.
  • the heat exchanger Since the heat exchanger is made from stacks of individual sheets, it can be assembled from these individual sheets in various forms as required. Since the exchange surfaces are arranged obliquely to the stacking direction, the channels here have a smaller width than the distance between the sheets in the stacking direction. This gives you better heat exchange. Since the inlet and outlet channels are arranged on opposite sides of the stack, the fluids flow completely through the stack from one side to the other, so that the entire heat exchanger surfaces are covered. Since the channels narrow in the inflow direction or expand in the outflow direction, optimal flow conditions are obtained. In the rear part of the channels, where there is little flow, these channels can be smaller than in the front part, where larger amounts of fluid flow.
  • the inlet and outlet channels on one side have a largest cross section, which is equal to the flow cross section of the channels between the exchange surfaces, the channels on the opposite side narrowing to the cross section zero.
  • the production is particularly efficient if the heat exchanger consists of the same, but alternately composed, plates. It is therefore only necessary to produce a press for one type of sheet, which is then assembled alternately to form the heat exchanger.
  • the channels between the exchange surfaces have a V-shaped cross section when viewed in the inflow or outflow direction.
  • an inlet channel and the corresponding outlet channel lie opposite one another on opposite sides of the heat exchanger.
  • the heat exchanger area is increased on the one hand. If the corrugations still touch each other, the sheets are supported against each other, which also allows the size to be reduced and thinner sheets to be selected.
  • the sheets can be welded together, soldered, in particular hard-soldered.
  • the heat exchanger is advantageously covered with a pressure-resistant and heat-insulating layer. If it is arranged in a pressure-tight and pressure-resistant housing, the interior of which has the pressure of the flowing media, the heat exchanger can also be used at very high pressures of these media. It is only necessary to ensure through a small hole or the like that a little of the media under high pressure can get from the heat exchanger into the pressure vessel, so that pressure equalization takes place here. The high operating pressures then no longer need from the thin sheets, but only have to be absorbed by the pressure-resistant container.
  • the medium 1 shows a conventional heat exchanger, between the walls 1 of which two media 2 and 3 move in the direction of arrows 4 and 5 in counterflow.
  • the medium 2 has an original temperature T2
  • the medium 3 has one original temperature T3.
  • the temperature profiles in the radial direction are indicated in the figure by a curve 6.
  • the temperature initially maintains the original value over most of the width a of the channels.
  • a temperature exchange only takes place within the relatively small boundary layer with the width s.
  • the cooled or warmed edge areas must first be mixed by the flow with the central areas of the flow, so that they only participate indirectly in the heat exchange, as a result of which the efficiency is reduced.
  • FIG. 3 which shows the flow channels in plan view
  • walls 1 which have a wave shape
  • the heat exchange surface is thereby increased. Since the corrugations e.g. touch at lines 7, the arrangement is very stable even when using thin sheets.
  • the flow channels 8 are limited laterally; In this way, a large flow channel is broken down into several smaller ones.
  • the heat exchanger consists of a stack of sheets 1 which are essentially V-shaped.
  • the legs of the V are relatively close together, so that the width of the flow channels 8 is very small here.
  • At the ends of the legs of the V there are angled sheet metal areas which delimit the inlet channels 9 and the outlet channels 10.
  • these channels taper to the thickness zero, so that only inflow channels are open from the right in the illustration in FIG. 5, while only outflow channels 10 are open to the left.
  • the one medium can be introduced on one end face at the end of one leg of the V and can be withdrawn on the same end face at the end of the other leg of the V.
  • the flow pattern is shown in plan view in FIG. 6.
  • FIGS. 4 to 6 the heat exchanger of FIGS. 4 to 6 is shown, in which the individual channels 9 and 10 are still provided with connecting pieces 11.
  • the heat exchanger 12 itself is surrounded by a heat and pressure-resistant insulating compound 13, which is enclosed by a pressure-resistant housing 14. Through pressure compensation holes, the interior of the pressure housing 14 communicates with the flowing media, so that only very low pressure is present on the relatively thin sheets 1 of the heat exchanger 12 even in cases where both media have very high, but approximately the same pressures.
  • the actual heat exchanger surfaces are not angled, but straight. Apart from this, the conditions are otherwise essentially the same as in the embodiment of FIGS. 4 to 8, so that a detailed explanation can be dispensed with.
  • the inflow channels 9 and outflow channels 10 alternate with one another in the cross-sectional area F and narrow toward the ends, so that a medium flows in or out at one of the four ends.
  • FIGS. 11 and 12 essentially the sheets of the embodiment of FIGS. 9 and 10 are used, which, however, are no longer stacked in a straight line but rather in a circle. This creates the flow conditions as indicated in FIG. 12.
  • One medium can be fed to the inner ring of inlet channels 9 from the left and be withdrawn on the same side of the outer ring of outlet channels 10 '.
  • the other medium is introduced from the outside right through the feed channels 9 'and radially removed from the inside of the channels 10.
  • radial fans can be used very conveniently for conveying the media.
  • a pressure-resistant insulation 11 and a pressure-resistant housing 14 are again provided.
  • the plates 1 of the heat exchangers are expediently welded or soldered to one another at the end faces at which the media enter or exit, since here one of the channels narrows to zero width, so the corresponding plates lie directly on top of one another. In this way, a very stable basic structure is obtained, in which only the remaining end faces then have to be soldered or otherwise closed, but this is also easy to achieve because of the corrugations.

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)
  • Windings For Motors And Generators (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Networks Using Active Elements (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
EP19890900222 1987-12-10 1988-12-01 Gegenstrom-wärmetauscher Expired - Lifetime EP0386131B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89900222T ATE74200T1 (de) 1987-12-10 1988-12-01 Gegenstrom-waermetauscher.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873741869 DE3741869A1 (de) 1987-12-10 1987-12-10 Gegenstrom-waermetauscher
DE3741869 1987-12-10

Publications (2)

Publication Number Publication Date
EP0386131A1 EP0386131A1 (de) 1990-09-12
EP0386131B1 true EP0386131B1 (de) 1992-03-25

Family

ID=6342292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890900222 Expired - Lifetime EP0386131B1 (de) 1987-12-10 1988-12-01 Gegenstrom-wärmetauscher

Country Status (11)

Country Link
US (1) US5121792A (da)
EP (1) EP0386131B1 (da)
JP (1) JP2602969B2 (da)
KR (1) KR0128254B1 (da)
AT (1) ATE74200T1 (da)
AU (1) AU623873B2 (da)
DE (2) DE3741869A1 (da)
DK (1) DK165652C (da)
FI (1) FI902871A0 (da)
NO (1) NO902593D0 (da)
WO (1) WO1989005432A1 (da)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9000712L (sv) * 1990-02-28 1991-08-29 Alfa Laval Thermal Permanent sammanfogad plattvaermevaexlare
EP0618003B1 (de) * 1993-03-25 1999-01-07 Sulzer Chemtech AG Als Wärmeübertrager ausgebildetes Packungselement für Stoffaustausch- oder Stoffumwandlungs-Verfahren
JP2642308B2 (ja) * 1993-12-28 1997-08-20 リンナイ株式会社 吸収式冷凍機用の溶液熱交換器
AUPN123495A0 (en) * 1995-02-20 1995-03-16 F F Seeley Nominees Pty Ltd Contra flow heat exchanger
IL114613A (en) * 1995-07-16 1999-09-22 Tat Ind Ltd Parallel flow condenser heat exchanger
SE9800934L (sv) * 1998-03-20 1999-07-12 Stellan Grunditz Värmeväxlare uppbyggd av kupade plattor
NL1016104C1 (nl) * 2000-09-05 2002-03-07 3F Holding B V Warmtewisselaar en daarmee uitgerust verwarmingssysteem.
GB0129040D0 (en) * 2001-12-05 2002-01-23 Semikron Ltd Heat sinks for electrical or other apparatus
FR2848653B1 (fr) * 2002-12-13 2005-03-11 Technologies De L Echange Ther Echangeur thermique procedes et moyens de fabrication de cet echangeur

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR476682A (fr) * 1913-09-24 1915-08-24 Anders Johan Ericsson Munters Appareil propre à refroidir ou chauffer les liquides
US1710818A (en) * 1928-01-18 1929-04-30 William F Fosbury Feed-water heater or condenser
GB532473A (en) * 1939-08-10 1941-01-24 Edward Samuel Symonds Improvements in plate heat-exchange apparatus for treating fluids, applicable also for treating gases with liquids
GB567880A (en) * 1943-02-05 1945-03-07 James Frank Belaieff Improvements in, or relating to, plate heat exchange apparatus
FR900326A (fr) * 1943-07-30 1945-06-26 Système échangeur de chaleur pour moteurs d'aéronefs et autres applications
BE650355A (da) * 1964-06-26
GB1126066A (en) * 1965-07-28 1968-09-05 Janusz Gutkowski Improvements in heat exchangers
US3525390A (en) * 1968-08-12 1970-08-25 United Aircraft Corp Header construction for a plate-fin heat exchanger
US4042018A (en) * 1975-09-29 1977-08-16 Des Champs Laboratories Incorporated Packaging for heat exchangers
SE7903535L (sv) * 1979-04-23 1980-10-24 Sigurd Hultgren Vermevexlare
SE424143B (sv) * 1980-12-08 1982-07-05 Alfa Laval Ab Plattindunstare
US4512397A (en) * 1982-05-27 1985-04-23 Walter Stark Housing for cross flow heat exchanger
JPS5997491A (ja) * 1982-11-25 1984-06-05 Japan Vilene Co Ltd 気流分岐部付き熱交換器
US4556105A (en) * 1983-10-24 1985-12-03 Boner Alan H Parallel heat exchanger with interlocking plate arrangement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Extrait de Brevet Russe (Derwent) Nr. 182697, & SU, A, 182697 (KAGAN) Bul. 12/9.6.1966 *

Also Published As

Publication number Publication date
DE3741869A1 (de) 1989-06-22
KR900700838A (ko) 1990-08-17
DE3869620D1 (de) 1992-04-30
AU623873B2 (en) 1992-05-28
DK140490A (da) 1990-06-08
NO902593L (no) 1990-06-11
DK165652C (da) 1993-05-17
WO1989005432A1 (en) 1989-06-15
EP0386131A1 (de) 1990-09-12
US5121792A (en) 1992-06-16
ATE74200T1 (de) 1992-04-15
JP2602969B2 (ja) 1997-04-23
DK165652B (da) 1992-12-28
KR0128254B1 (ko) 1998-04-03
FI902871A0 (fi) 1990-06-08
NO902593D0 (no) 1990-06-11
DK140490D0 (da) 1990-06-08
AU2815689A (en) 1989-07-05
JPH03501645A (ja) 1991-04-11

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