EP0463298A1 - Echangeur de chaleur à plaques - Google Patents

Echangeur de chaleur à plaques Download PDF

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Publication number
EP0463298A1
EP0463298A1 EP91105123A EP91105123A EP0463298A1 EP 0463298 A1 EP0463298 A1 EP 0463298A1 EP 91105123 A EP91105123 A EP 91105123A EP 91105123 A EP91105123 A EP 91105123A EP 0463298 A1 EP0463298 A1 EP 0463298A1
Authority
EP
European Patent Office
Prior art keywords
plate
heat exchange
plates
heat exchanger
profiling
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
EP91105123A
Other languages
German (de)
English (en)
Other versions
EP0463298B1 (fr
Inventor
Friedrich Dipl.-Ing. Schenker
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.)
W Schmidt Bretten GmbH
Original Assignee
W Schmidt Bretten 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 W Schmidt Bretten GmbH filed Critical W Schmidt Bretten GmbH
Publication of EP0463298A1 publication Critical patent/EP0463298A1/fr
Application granted granted Critical
Publication of EP0463298B1 publication Critical patent/EP0463298B1/fr
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
    • 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
    • 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

Definitions

  • the invention relates to a plate heat exchanger with a plurality of substantially rectangular, aligned and provided by embossing with a profile in the form of wave crests and troughs, which are rotated alternately by 180 ° against each other with mutual sealing and with the facing profile of adjacent plates are optionally releasably tensioned to form a stack, the plates alternatingly forming a flow medium between them for a first and a substantially parallel second medium through the circumferential seal, which are aligned with one another and formed by openings arranged in the corner regions of the plates Outflow openings can be loaded with the respective medium, the plates also having a central, essentially rectangular and two adjoining them on opposite sides, containing the inflow and outflow openings, essentially dr have triangular heat exchange areas, and wherein in at least one of the plates the profiling of the central heat exchange area has an angle with respect to the direct flow connection between the triangular heat exchange areas.
  • adjacent plates are braced against one another via seals arranged along their circumference in the form of elastic seals, mutual welding or mutual soldering, so that the seals delimit the spaces formed between the plates.
  • elastic circumferential seals are essentially assumed, without there being any restriction as to the circumferential seals.
  • the profile of the plates of such heat exchangers generally consists of an undulating, often sinusoidally corrugated embossing with wave crests and wave troughs of equal cross-section.
  • embossments that differ from the same cross-sectional shape are also common and are included below.
  • the course of the wave crests and troughs of the profiling has different angles to the direct flow connection between the triangular heat exchange areas, which is usually the vertical of the plates, depending on the area of application of the plate heat exchanger, angles below 45 ° leading to so-called soft plates, while angles above 45 ° result in so-called hard plates.
  • the hard, high-turbulence plates are generally used for smaller throughputs of the media and result in a high heat exchange coefficient.
  • the soft plates with a lower heat exchange coefficient are used for the throughputs of large quantities.
  • the object of the invention is to provide a design for the soft plates of a plate heat exchanger of the type mentioned at the outset which allows the reversal points within the profiling to be reduced, on the other hand to give the plates a stability comparable to that of hard plates transversely to the direct flow connection mentioned and finally at desired points a "breaking up" of the laminar flow conditions that are formed.
  • the solution to this problem should be possible with the aid of simple tools which are customary for the production of the plates in question.
  • the object is achieved according to the invention in that the profiling of the central heat exchange area is interrupted in the soft plates by at least one section which is short in the direction of the direct flow connection and extends across it across the entire plate width and whose profile is opposite the direct flow connection has a larger angle than the other profiling.
  • the short belts in the manner of a hard plate result in an effective disruption of the laminar flow patterns of the soft plates, the number and arrangement of said belts being able to position these disruptions in such a way that they always occur when there is a problem with the soft plates has developed approximately laminar flow.
  • Another advantage of the design according to the invention is that the pressure loss resulting from the belt in the manner of a harder plate embossing is fully converted into heat transfer performance.
  • the overall hardness of the flow space formed in this way, or the heat conduction that can be transmitted at the same flow rate between adjacent plates, increases somewhat, which enables a smaller total area of the heat exchange area from the associated better heat transfer.
  • the production of the "soft" plates according to the invention is extremely cost-effective, since the above-mentioned hard embossing belts can be used within the embossing tool as sections of a tool for producing hard embossing plates. These belts can be manufactured as a tool part in the usual way, as is the case for so-called hard plates.
  • the sections of hard embossing or hard plate profiling should be as short as possible, that is to say in no way should they occupy a significant part of the central heat exchange area, although on the other hand they can be provided in larger numbers depending on how often according to the size of the heat exchange plate, the transverse stabilization on the one hand and the interruption of a laminar flow which forms on the other hand is necessary.
  • the middle heat exchange areas and the short sections have a V-shaped profile with a reversal point on the plate center located transversely to the direct flow connection. This is due to reasons of symmetry.
  • the design according to the invention makes it possible to reduce the reversal points or deflection points of the profiling to such a point.
  • the profiling of the central heat exchange region has an angle with respect to the direct flow connection in the region of 60 ° and the profiling of the short sections in the region of 30 °.
  • Fig. 1 shows a plate 1 of a plate heat exchanger with a substantially rectangular configuration.
  • the plate has a central heat exchange region 2 and adjoining it at both ends, essentially triangular heat exchange region 3, 4, within which inlet and outlet openings 5, 6, 7, 8 are arranged in the corner regions of the plate 1.
  • the central heat exchange region has relative to the direct or main flow direction 9, which at the same time substantially coincides with the vertical center longitudinal axis of the plate 1, a symmetrical profile 10 from the axis 9 shown having an angle below 45 0th
  • the soft profiling 10 corresponding to the statements made at the beginning is interrupted twice at 11 in the course of the vertical of the plate 1 by a flow direction between the openings 5, 6, a short section of such a plate profiling, the angle of which is above 45 relative to the vertical 9.
  • This profiling is also arranged symmetrically with respect to the vertical central longitudinal axis so that the kink of the profiling lies on this vertical axis 9.
  • a peripheral seal 20 is arranged such that, in the case of FIG. 1, the medium flowing there on the side of the plate facing the viewer is located is moved between openings 5, 6 and is blocked off from the openings 7, 8, while in the counterplate according to FIG. 2 the corresponding seal 20 is arranged such that on the next flow gap the other medium between the openings 7, 8 opposite the openings 5, 6 corded form flows.
  • the plates according to FIGS. 1 and 2 are formed equally, only the plate according to FIG. 2 is a plate according to FIG. 1 in a form rotated through 180 ° in the plate plane. It can also be seen from this that the regions 11 do not overlap each other in the case of plates lying on top of one another as shown in FIGS. 1 and 2.
  • Fig. 3 shows the exploded view of several adjacent plates according to FIGS. 1 and 2, that is plates with a "soft" embossing pattern for large mass throughputs with low heat exchange between the merged media, which in the sketched flow pattern on the one hand according to the flow line 14, 15 and on the other hand according to the Flow line 16, 17 flow in and out.
  • the hard embossing 11 arranged transversely to the vertical 9 does not come to rest on adjacent plates, but on the other hand is arranged in sufficient numbers over the height of the plates that they adhere to suitable points the soft profiles 10 of the central plate areas forming laminar flows are disturbed, on the other hand the plates have a sufficient stability transversely to the vertical 9 against the pressing pressure indicated by the arrows 18, 19, by which the plates are clamped together in a manner known per se to form a package and under which they try to widen across the vertical line 9.

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)
  • Separation By Low-Temperature Treatments (AREA)
  • Fuel Cell (AREA)
EP91105123A 1990-06-29 1991-03-30 Echangeur de chaleur à plaques Expired - Lifetime EP0463298B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4020735A DE4020735A1 (de) 1990-06-29 1990-06-29 Plattenwaermeaustauscher
DE4020735 1990-06-29

Publications (2)

Publication Number Publication Date
EP0463298A1 true EP0463298A1 (fr) 1992-01-02
EP0463298B1 EP0463298B1 (fr) 1994-06-22

Family

ID=6409337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105123A Expired - Lifetime EP0463298B1 (fr) 1990-06-29 1991-03-30 Echangeur de chaleur à plaques

Country Status (5)

Country Link
EP (1) EP0463298B1 (fr)
JP (1) JP3049450B2 (fr)
AT (1) ATE107763T1 (fr)
DE (2) DE4020735A1 (fr)
DK (1) DK0463298T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1091185A3 (fr) * 1999-10-07 2003-06-04 Ballard Power Systems AG Echangeur de chaleur à plaques
WO2007004939A1 (fr) * 2005-07-04 2007-01-11 Alfa Laval Corporate Ab Plaque d’échange thermique, paire de deux plaques d’échange thermique et ensemble de plaques pour échangeur thermique à plaques
WO2009154543A1 (fr) * 2008-06-17 2009-12-23 Alfa Laval Corporate Ab Échangeur de chaleur
WO2011133087A3 (fr) * 2010-04-21 2012-03-08 Alfa Laval Corporate Ab Plaque d'échangeur de chaleur à plaques et échangeur de chaleur à plaques
CN102519281A (zh) * 2011-12-27 2012-06-27 中国科学院广州能源研究所 过冷却板式换热器
US11226163B2 (en) 2017-04-26 2022-01-18 Alfa Laval Corporate Ab Heat transfer plate and heat exchanger comprising a plurality of such heat transfer plates

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE505225C2 (sv) * 1993-02-19 1997-07-21 Alfa Laval Thermal Ab Plattvärmeväxlare och platta härför
DE4431413C2 (de) * 1994-08-24 2002-10-10 Rehberg Michael Plattenwärmetauscher für flüssige und gasförmige Medien
DE19510847C2 (de) * 1995-03-17 2002-11-21 Michael Rehberg Plattenwärmetauscher
DE19540271C1 (de) * 1995-10-28 1996-11-07 Gea Ecoflex Gmbh Plattenwärmetauscher
JP2002107084A (ja) * 2000-09-29 2002-04-10 Hisaka Works Ltd プレート式熱交換器
JP4827905B2 (ja) * 2008-09-29 2011-11-30 三菱電機株式会社 プレート式熱交換器、及びこれを搭載した空気調和機
JP5710232B2 (ja) * 2010-12-09 2015-04-30 株式会社日阪製作所 プレート式熱交換器
CN102261861B (zh) * 2011-07-16 2013-07-31 山东安源水产股份有限公司 一种板式换热器及在海水养殖中的应用
KR20160093616A (ko) * 2013-12-05 2016-08-08 스웹 인터네셔널 에이비이 변하는 피치를 가지는 열교환기 판
CN106895724A (zh) * 2017-02-24 2017-06-27 江阴市亚龙换热设备有限公司 板式换热器
ES2839409T3 (es) 2017-03-10 2021-07-05 Alfa Laval Corp Ab Paquete de placas, placa y dispositivo intercambiador de calor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2109346A1 (de) * 1970-03-20 1971-10-14 Apv Co Ltd Platte fur Plattenwärmetauscher und Werkzeug zu seiner Herstellung
GB2054817A (en) * 1979-07-26 1981-02-18 Apv Co Ltd Heat exchanger plate
WO1985002670A1 (fr) * 1983-12-08 1985-06-20 Alfa-Laval Thermal Ab Plaque d'echangeur thermique
EP0204880A2 (fr) * 1985-06-06 1986-12-17 ReHeat AB Echangeur à plaques

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE321492B (fr) * 1968-03-12 1970-03-09 Alfa Laval Ab
SE411952B (sv) * 1978-07-10 1980-02-11 Alfa Laval Ab Vermevexlare innefattande ett flertal i ett stativ inspenda vermevexlingsplattor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2109346A1 (de) * 1970-03-20 1971-10-14 Apv Co Ltd Platte fur Plattenwärmetauscher und Werkzeug zu seiner Herstellung
GB2054817A (en) * 1979-07-26 1981-02-18 Apv Co Ltd Heat exchanger plate
WO1985002670A1 (fr) * 1983-12-08 1985-06-20 Alfa-Laval Thermal Ab Plaque d'echangeur thermique
EP0204880A2 (fr) * 1985-06-06 1986-12-17 ReHeat AB Echangeur à plaques

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1091185A3 (fr) * 1999-10-07 2003-06-04 Ballard Power Systems AG Echangeur de chaleur à plaques
WO2007004939A1 (fr) * 2005-07-04 2007-01-11 Alfa Laval Corporate Ab Plaque d’échange thermique, paire de deux plaques d’échange thermique et ensemble de plaques pour échangeur thermique à plaques
CN101213414B (zh) * 2005-07-04 2010-09-29 阿尔法拉瓦尔股份有限公司 热交换板、热交换板对和板式热交换器的热交换板套件
US8746329B2 (en) 2005-07-04 2014-06-10 Alfa Laval Corporate Ab Heat exchanger plate, a pair of two heat exchanger plates, and plate package for a plate heat exchanger
WO2009154543A1 (fr) * 2008-06-17 2009-12-23 Alfa Laval Corporate Ab Échangeur de chaleur
CN102084204B (zh) * 2008-06-17 2013-03-13 阿尔法拉瓦尔股份有限公司 换热器
US9518782B2 (en) 2008-06-17 2016-12-13 Alfa Laval Corporated Ab Heat exchanger
WO2011133087A3 (fr) * 2010-04-21 2012-03-08 Alfa Laval Corporate Ab Plaque d'échangeur de chaleur à plaques et échangeur de chaleur à plaques
CN102519281A (zh) * 2011-12-27 2012-06-27 中国科学院广州能源研究所 过冷却板式换热器
US11226163B2 (en) 2017-04-26 2022-01-18 Alfa Laval Corporate Ab Heat transfer plate and heat exchanger comprising a plurality of such heat transfer plates

Also Published As

Publication number Publication date
DK0463298T3 (da) 1994-08-01
DE59101987D1 (de) 1994-07-28
ATE107763T1 (de) 1994-07-15
JP3049450B2 (ja) 2000-06-05
DE4020735A1 (de) 1992-01-02
EP0463298B1 (fr) 1994-06-22
DE4020735C2 (fr) 1992-11-19
JPH04227480A (ja) 1992-08-17

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