EP2674718A2 - Echangeur thermique à plaques conçu de manière asymétrique - Google Patents

Echangeur thermique à plaques conçu de manière asymétrique Download PDF

Info

Publication number: EP2674718A2
Authority: EP; European Patent Office
Prior art keywords: heat transfer; transfer plates; plate; heat exchanger; truncated pyramids
Prior art date: 2012-06-14
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

EP13172071.6A

Other languages

German (de)

English (en)

Other versions

EP2674718B1 (fr

EP2674718A3 (fr

Inventor

Matthias Funke

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.)

Kelvion Brazed PHE GmbH

Original Assignee

GEA WTT 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.)

2012-06-14

Filing date

2013-06-14

Publication date

2013-12-18

2013-06-14 Application filed by GEA WTT GmbH filed Critical GEA WTT GmbH

2013-12-18 Publication of EP2674718A2 publication Critical patent/EP2674718A2/fr

2015-08-26 Publication of EP2674718A3 publication Critical patent/EP2674718A3/fr

2018-10-03 Application granted granted Critical

2018-10-03 Publication of EP2674718B1 publication Critical patent/EP2674718B1/fr

Status Active legal-status Critical Current

2033-06-14 Anticipated expiration legal-status Critical

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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
- 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
- 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
- F28F3/044—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 pontual, e.g. dimples

Definitions

the invention relates to a plate heat exchanger in asymmetric design.
Plate heat exchangers or transporters typically have a stack of heat transfer plates disposed between one or more restriction plates such that passageways for heat exchange fluids are formed between the heat transfer plates in the stack.
the passageways providing passages communicate with ports through which heat exchange fluids are supplied and removed during operation. Between the heat exchanger fluids flowing through the plate heat exchanger in operation, heat energy is transferred via the heat transfer plates for cooling and / or heating.
the plates have a respective profiling.
meandering structures can be provided. It has also been proposed to provide a profiling with truncated pyramids (cf. J. Enhanced Heat Transfer, 9: 171-179, 2002 ). With the help of the truncated pyramids concave and convex shaped flow sections were produced in the stack of heat transfer plates with special plate assembly.
the passages for the heat exchanger fluids produced on the stacked plates by means of a similar structure of all the truncated pyramids are designed for the same volume flows in each case. They each have the same volume and have the same flow area.
plate heat exchangers in asymmetric design or construction provide passages in the stack of heat transfer plates which differ in the volume or mass flows of the heat exchange fluids flowing through the plate heat exchanger. Different volumes of the passages can be produced in particular by means of differing flow cross sections.
the passages are contrast configured to allow the same volume or mass flows of the heat exchange fluids, which is why the passages usually have a uniform flow area exhibit.
Asymmetrical passages with different volume flows can be realized, for example, in that the passages have different passage areas transversely to the flow.
Plate heat exchangers in asymmetric design are particularly suitable to meet different application conditions when using the plate heat exchangers, in particular the fact that the volume or mass flows differ significantly in the passages.
the object of the invention is to provide a plate heat exchanger in asymmetric design, in which the asymmetric passages in the stack of heat transfer plates can be flexibly provided for different applications.
an asymmetric or plate type plate heat exchanger which includes a stack of heat transfer plates with passageways for heat exchange fluids sealed together in the stack.
the heat transfer plates each have a profiling, which is formed with an array of projecting from the plane of the truncated pyramidal stumps and arranged therebetween in the plane of the plate base portions.
the base portions comprise the area between the pyramidal stumps protruding from the plane of the plate, which in turn have a plateau or a top surface due to their stump formation on the side opposite the heat transfer plate.
the passageways forming passages in the stack of heat transfer plates are made asymmetrical, allowing for different volume or mass flows.
the base portions of an upper heat transfer plate are disposed on the truncated pyramids of an underlying heat transfer plate, preferably in the region of the top surface of the truncated pyramids. wherein a partial or complete overlap of the base sections may be provided with the associated truncated pyramids.
truncated pyramid in the form used here includes stump-like structures with any desired surface area, including, in particular, round, angular, oval or circular bases. Such structures are also referred to as truncated cone.
heat transfer plates having a first truncated pyramidal shape and a second truncated pyramidal shape different from the first truncated shape.
the profiling comprises truncated pyramids with one or more concave side surfaces.
the side surfaces of the truncated pyramid relate to the wall sections of the respective stump structure, which extends from the plane of the plate of the heat transfer plate to the plateau or to the top surface of the truncated pyramid. All the truncated pyramids of a heat transfer plate can be formed with one or more concave side surfaces.
the profiling comprises truncated pyramids with one or more convex side surfaces.
asymmetric passages can be made in the stack of heat transfer plates when heat transfer plates are alternately stacked, alternating with truncated pyramidal stumps with concave side surfaces and truncated pyramidal frustum plates with convex side surfaces. All of the truncated pyramids of a heat transfer plate can be formed with one or more convex side surfaces.
a concave side surface A heat transfer plate and a convex side surface of a heat transfer plate (opposite plate) adjacent thereto may be opposed to each other to form an embodiment of an asymmetrical passage.
An embodiment provides that in at least one of the heat transfer plates, the truncated pyramids all have the same truncated pyramid shape.
the truncated pyramid shape is determined in particular by means of the following parameters: height, base surface shape and formation of the side surfaces, for example concave or convex.
the truncated pyramids are formed with at least two different truncated pyramidal shapes.
At least two heat transfer plates, which are arranged adjacent in the stack of heat transfer plates, have the same profiling.
heat transfer plates arranged adjacent to one another in the stack are rotated relative to one another by 180 °.
a development may provide that the adjacent heat transfer plates are joined together in the region of the support of the base sections on the truncated pyramids.
the joining of the heat transfer plates is carried out for example by means of soldering or welding.
plate heat exchangers are formed in brazed or welded design or construction.
the truncated pyramids have a base area selected from the following group of base areas: polygon or polygon, square, square, triangle, circle and ellipse.
the bases of the truncated pyramids of a heat transfer plate can all be the same.
a heat transfer plate may have bases of different shapes. In a stack of heat transfer plates, all plates may have truncated cones of the same footprint. It can also be provided that truncated cones with different base surface shapes are arranged in the plates of a stack.
An embodiment provides that in at least one of the heat transfer plates, the profiling is designed as a regular arrangement of truncated pyramids.
a further embodiment provides that in at least one of the heat transfer plates, a plateau width of the truncated pyramids is substantially equal to the width of the base sections between the truncated pyramids. If the truncated pyramids have a round shape in the area of the top surface, the diameter of the round top surface can be substantially equal to the width of the overlying base sections.
An embodiment may provide that in at least one of the heat transfer plates profiling has a meandering profiling.
the at least one heat transfer plate one or more profiling sections with truncated cones on the one hand and one or more profiling sections with meandering or herringbone profiling on the other hand combined, the latter can be provided, for example, in inflow and / or distribution areas of the plate stack.
the profiling of the heat transfer plates is designed as an embossing pattern.
the profiling is hereby produced by embossing, in particular using a stamping die, for example in heat transfer plates made of metal.
Fig. 1 shows a perspective view of a stack of heat transfer plates 1 for a plate heat exchanger or transformer, which are provided with a profiling 2, such that truncated pyramids 3 protrude from a plane of the plate 4.
Base sections 5 extend between the truncated pyramids 3 in the plane of the plate 4.
Breakthroughs 6 serve in the stack of heat transfer plates 1 in forming a plate heat exchanger for connecting a line system, via which heat exchange fluids are supplied and removed.
the profiling 2 is formed with a regular arrangement of the truncated pyramids 3.
at least the truncated pyramids 3 of the heat transfer plate arranged at the top of the stack are of similar design.
the truncated pyramids 3 have convex or concave side surfaces 7, 8, as shown in the perspective views of a respective truncated pyramid in the 3 and 4 demonstrate.
the convex and concave side surfaces 7, 8 extend from the bottom 9 a to the top surface (plateau) 9 b of the truncated pyramid 3.
asymmetric passages can be made in the stack of heat transfer plates 1, as exemplified by the schematic representation in FIG Fig. 5 shows.
a heat transfer plate 11 with concave truncated pyramids 11a is arranged on a lower heat transfer plate 10 with convex truncated pyramids 10a.
a heat transfer plate 12 with convex truncated pyramids 12a is then followed again by a heat transfer plate 12 with convex truncated pyramids 12a, followed by a heat transfer plate 13 with concave truncated pyramids 13a.
a profiling with different shapes of truncated pyramids on the same heat transfer plate 1 in particular to make inflow and / or distribution areas of the passageways in the stack of heat transfer plates so that a uniform flow distribution as possible Passage is achieved, in particular to use the heat transfer surfaces in the stack of heat transfer plates 1 optimized.
a heat transfer plate 1 can also be provided to use on a heat transfer plate 1 one or more profiling areas with truncated pyramids of the same or different shape and one or more other profiling areas in which maander-shaped or fishbone-shaped profilings are formed.
the combination of the different profilings makes it possible, for example, to form as uniform as possible a flow distribution in the passage in the inflow and / or distribution regions of the passages in the stack of heat transfer plates. In this way, the heat transfer surfaces in the stack of heat transfer plates 1 can be used optimally.

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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)

EP13172071.6A 2012-06-14 2013-06-14 Echangeur thermique à plaques conçu de manière asymétrique Active EP2674718B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102012105144.5A DE102012105144B4 (de)	2012-06-14	2012-06-14	Plattenwärmetauscher in asymmetrischer Ausführung

Publications (3)

Publication Number	Publication Date
EP2674718A2 true EP2674718A2 (fr)	2013-12-18
EP2674718A3 EP2674718A3 (fr)	2015-08-26
EP2674718B1 EP2674718B1 (fr)	2018-10-03

Family

ID=48672402

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP13172071.6A Active EP2674718B1 (fr)	2012-06-14	2013-06-14	Echangeur thermique à plaques conçu de manière asymétrique

Country Status (4)

Country	Link
EP (1)	EP2674718B1 (fr)
DE (1)	DE102012105144B4 (fr)
DK (1)	DK2674718T3 (fr)
ES (1)	ES2705226T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2016005109A1 (fr) *	2014-07-09	2016-01-14	Khs Gmbh	Dispositif de traitement thermique et procédé de traitement thermique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102019008914A1 (de) *	2019-12-20	2021-06-24	Stiebel Eltron Gmbh & Co. Kg	Wärmepumpe mit optimiertem Kältemittelkreislauf

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FI47141C (fi) *	1960-03-16	1973-09-10	Rosenblad	Lämmönvaihtojärjestelmä kahta keskenään eripaineista lämpöä vaihtavaa väliainetta varten.
GB1197933A (en) *	1967-09-18	1970-07-08	Apv Co Ltd	Improvements in or relating to Plate Type Heat Exchangers
US4084635A (en) *	1976-08-18	1978-04-18	Midland-Ross Corporation	Heat recovery and heat distributing apparatus
JPH0612222B2 (ja) *	1985-08-12	1994-02-16	三菱重工業株式会社	内壁に交差溝を有する伝熱管
WO2000016029A1 (fr) *	1998-09-16	2000-03-23	Hitachi, Ltd.	Echangeur de chaleur et systeme de conditionnement d'air refrigerant
JP2000193390A (ja) *	1998-12-25	2000-07-14	Daikin Ind Ltd	プレ―ト式熱交換器
JP2004028385A (ja) *	2002-06-24	2004-01-29	Hitachi Ltd	プレート式熱交換器
SE528629C2 (sv) *	2004-09-08	2007-01-09	Ep Technology Ab	Rillmönster för värmeväxlare
JP4666463B2 (ja)	2005-01-25	2011-04-06	株式会社ゼネシス	熱交換用プレート
JP2007010202A (ja)	2005-06-29	2007-01-18	Xenesys Inc	熱交換ユニット
DE102009060395A1 (de) *	2009-12-22	2011-06-30	Wieland-Werke AG, 89079	Wärmeübertragerrohr und Verfahren zur Herstellung eines Wämeübertragerrohrs
RU2511779C2 (ru) *	2010-11-19	2014-04-10	Данфосс А/С	Теплообменник

2012
- 2012-06-14 DE DE102012105144.5A patent/DE102012105144B4/de active Active
2013
- 2013-06-14 EP EP13172071.6A patent/EP2674718B1/fr active Active
- 2013-06-14 DK DK13172071.6T patent/DK2674718T3/en active
- 2013-06-14 ES ES13172071T patent/ES2705226T3/es active Active

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2016005109A1 (fr) *	2014-07-09	2016-01-14	Khs Gmbh	Dispositif de traitement thermique et procédé de traitement thermique
US10321703B2 (en)	2014-07-09	2019-06-18	Khs Gmbh	Thermal treatment device and a thermal treatment method

Also Published As

Publication number	Publication date
ES2705226T3 (es)	2019-03-22
EP2674718B1 (fr)	2018-10-03
DE102012105144A1 (de)	2013-12-19
DE102012105144B4 (de)	2021-12-02
EP2674718A3 (fr)	2015-08-26
DK2674718T3 (en)	2019-01-28

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