EP2674718B1 - Plattenwärmetauscher in asymmetrischer Ausführung - Google Patents
Plattenwärmetauscher in asymmetrischer Ausführung Download PDFInfo
- Publication number
- EP2674718B1 EP2674718B1 EP13172071.6A EP13172071A EP2674718B1 EP 2674718 B1 EP2674718 B1 EP 2674718B1 EP 13172071 A EP13172071 A EP 13172071A EP 2674718 B1 EP2674718 B1 EP 2674718B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat transfer
- plate
- transfer plates
- truncated pyramids
- heat exchanger
- 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.)
- Active
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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 different 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. In contrast, in the plate heat exchangers in symmetrical design, the passages are configured to allow the same volume or mass flows of the heat exchanger fluids, which is why the passages usually have a uniform flow cross-section 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.
- a plate heat exchanger in asymmetric design is known.
- the stacked heat transfer plates have major protrusions formed as truncated cones. Between adjacent main projections intermediate projections may be arranged.
- 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, with an array of projecting from the plane of the truncated pyramidal stumps and in between in the plane of the plate arranged base portions is formed.
- 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 sections 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 concern the wall sections of the respective truncated 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 are made in the stack of heat transfer plates by alternately stacking heat transfer plates in which plates with truncated pyramids with concave side surfaces and plates with truncated pyramids with convex side surfaces alternate. 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 are arranged opposite each other to form 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.
- a further development provides that in at least one of the heat transfer plates, 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 run in the plane of the plate 4 between the truncated pyramids 3.
- 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.
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)
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 EP2674718A2 (de) | 2013-12-18 |
EP2674718A3 EP2674718A3 (de) | 2015-08-26 |
EP2674718B1 true EP2674718B1 (de) | 2018-10-03 |
Family
ID=48672402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13172071.6A Active EP2674718B1 (de) | 2012-06-14 | 2013-06-14 | Plattenwärmetauscher in asymmetrischer Ausführung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2674718B1 (es) |
DE (1) | DE102012105144B4 (es) |
DK (1) | DK2674718T3 (es) |
ES (1) | ES2705226T3 (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014109608A1 (de) * | 2014-07-09 | 2016-01-14 | Khs Gmbh | Wärmebehandlungsvorrichtung sowie Verfahren zur Wärmebehandlung |
DE102019008914A1 (de) * | 2019-12-20 | 2021-06-24 | Stiebel Eltron Gmbh & Co. Kg | Wärmepumpe mit optimiertem Kältemittelkreislauf |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 ES ES13172071T patent/ES2705226T3/es active Active
- 2013-06-14 EP EP13172071.6A patent/EP2674718B1/de active Active
- 2013-06-14 DK DK13172071.6T patent/DK2674718T3/en active
Also Published As
Publication number | Publication date |
---|---|
DE102012105144B4 (de) | 2021-12-02 |
ES2705226T3 (es) | 2019-03-22 |
DE102012105144A1 (de) | 2013-12-19 |
EP2674718A3 (de) | 2015-08-26 |
DK2674718T3 (en) | 2019-01-28 |
EP2674718A2 (de) | 2013-12-18 |
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