EP2233873A1 - Échangeur thermique à plaques - Google Patents

Échangeur thermique à plaques Download PDF

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Publication number
EP2233873A1
EP2233873A1 EP10155028A EP10155028A EP2233873A1 EP 2233873 A1 EP2233873 A1 EP 2233873A1 EP 10155028 A EP10155028 A EP 10155028A EP 10155028 A EP10155028 A EP 10155028A EP 2233873 A1 EP2233873 A1 EP 2233873A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
curve
plate
curves
sections
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.)
Withdrawn
Application number
EP10155028A
Other languages
German (de)
English (en)
Inventor
Goekce Cetin
Halil Ufuk Oezboga
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2233873A1 publication Critical patent/EP2233873A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a plate exchanger providing heat exchange of at least two fluids (A and B) as described under Claim 1.
  • Such plate exchanger normally consists of two fluid chambers for two fluids (A and B).
  • This exchanger consists of at least three, normally twelve and more exchangers forming a plate package.
  • Exchanger plates are sequenced successively within the said plate package and the two exchanger plates next to each other determine the borders of fluid channels between them.
  • at least two fluids (A and B) pass through fluid channels following each other in the plate package.
  • Exchanger plates normally consists of four holes, namely inlet, passage and/or outlet directing the fluids (A and B) to independent fluid channels.
  • Geometric structure of different exchanger plates in the outside side and/or medium of a plate package vary depending on design of the exchanger and connection status of the pipes where the fluid passes.
  • Exchanger plates has a wavy profile and this profile shape consists of curves arranged in the form of fishbone and raised in general and providing occurrence of a turbulence during flowing of at least two fluids (A and B) flowing through the plate exchanger.
  • Fishbone model can also be in arrow shape or V-shape and V-shape curves located successively as it is herein spread almost all areas of the exchanger plates.
  • Exchanger plates are generally made of stainless steel sheet by use of pressing or deep extraction process.
  • exchanger plates During mounting of plate packages, exchanger plates should be located in a manner directions of fishbone like profiles are opposite, Thus, a three-dimensional turbulence flowing is provided in a highly complex structure in the flowing channel, the degree of the turbulence determines the rate of reaching balance of temperature in the fluid flowing in the fluid channel and therefore the efficiency of the plate exchanger.
  • the exchanger plates adjacent to each other contact each other at the top parts of the curves.
  • point contact surfaces occur between curves overlapping of plates adjacent to each other.
  • Patent application no. EP 1 630 510 B1 discloses a plate heat exchanger comprising at least two separate flow paths for primary and secondary fluids to exchange heat, the said two flow paths being substantially defined by heat exchanger plates interconnected by soldering provided with a herring bone pattern of ridges and depressions (curves) and offering different pressure drops at equal mass flows of the two fluids
  • the curves of the said heat exchanger plates have two different height measures.
  • the design aims to decrease the number of contact surfaces between the neighbouring heat exchanger plates and thus increase the effective heat transfer area for the same exchange magnitude.
  • the pressure loss occurring along both flow chambers vary independent of volume flow rates of the fluids by help of the described profile structure.
  • Such plate exchangers are called asymmetric.
  • the main purpose of the invention is to disclose a plate heat exchanger which increase the current heat transfer area and increase the turbulence in the flowing channels where the cooling (heat taking) fluid passes, at least at the same rate provided by the existing art, provided that it is of the same size and at least of the same strength.
  • the plate heat exchanger of the invention is characterized in that the curves arranged in fish bone shape in general and forming the profile of the exchanger plates have at least two different heights along the longitudinal axis.
  • the height is measured vertically plane determined by surfaces of fixed height where V-shape curves forming fishbone in the exchanger plate are interconnected.
  • V shape curves of the exchanger plate consist of curve sections following each other along the longitudinal axis, and height measure of each curve section here is fixed and this height is different from height of the next section of the same curve.
  • the sections of a curve succeeding each other are formed by means of at least two different height gradually and as a result, low and high curve sections are provided.
  • the curves forming profile of an exchanger plate and arranged in fishbone shape consist of more than one and preferably, three or five or seven sections.
  • the curve sections of an exchanger plate directly neighbouring each other at the same level are located by sliding in the height measure.
  • Curve sections of the neighbouring each other of the same level with each other here refers to first, second or third curve sections etc.
  • one line of curves following each other in an exchanger plate contains firstly one low curve section, then one high curve after it and then one low curve section after it etc. in longitudinal direction of the first, second, third, fifth curve etc.
  • the direct neighbouring second, fourth, sixth curve etc. of the same exchanger plate longitudinally contain firstly one high curve section, then one low section after it and one high curve after it.
  • the passage between succeeding curve sections of a curve can be formed in a passage zone consisting of flat or cavity surfaces providing connection of border lines of the curve sections. since the curves directly neighbouring each other are located in a separate manner in respect to height measures, a cross-section A-A taken vertically to the curve sections of neighbouring curves attached to each other in more than one has an appearance different from Cross-section B-B taken in direction vertical to curve sections neighbouring the said Cross-section A-A.
  • Figure 1 shows two perspective views of two neighbouring exchanger plates (1 and 1') of a plate exchanger.
  • the figure shows four holes (2) for inlet, passage and/or outlet of the fluids conducting heat exchange, edge (3) curved at conical angle and hole surrounding surfaces (51 and 52).
  • the neighbouring exchanger plates (1 and 1') can be combined into a plate package by help of zones where this edge (3) and hole surrounding surfaces (51 and 52) contact each other.
  • the said exchanger plates are preferably soldered.
  • wavy curves (4 and 4') of fish bone shape are seen wherein in the said curves (4 and 4') form the profile of exchanger plates (1 and 1').
  • the said curves (4 and 4') are illustratively divided into five curve sections (411, 412, 413, 414, 415 in figure 1a and 411', 412', 413', 414', 415' in figure 1b ) following each other longitudinally along the axis.
  • the curves are preferably divided into five curve sections.
  • the height measure of each curve section (411, 412, 413, 414, 415 and 411', 412', 413', 414', 415') is constant within itself and the said height measure is different from the height measure of the next section of the same curve (4 and 4').
  • the low (6) border (in respect to figure) of fishbone zone shown in the figure 1a is of the same level as the hole (2) surrounding low surface (52) while top (6') border (in respect to the figure) of the fish bone shown in figure 1b is of the same level as the hole (2) surrounding high surface (51).
  • Figure 2a and 2b shows top view of two neighbouring exchanger plates (1 and 1') according to Figure 1a and 1b . It also contains four holes (2) for inlet, passage and/or outlet of the fluids. The figure also shows fishbone zones formed by curves (4 and 4') arranged in V shape. The probable contour lines of neighbouring two curves (41, 42 and 41', 42') in each neighbouring plate (1 and 1') are described in details according to cross-sections 4-I, 4-II, 4'-I and 4'-II for better understanding of the invention.
  • Figures 3a, 3b and 3c show four probable projections of curves (4 and 4') onto the neighbouring exchanger plates (1 and 1').
  • Figures 3a-1 and 3a-2 shows longitudinal cross-sections of two neighbouring curves (41 and 42) of a heat exchanger plate (1) of Figure 1 and Figure 2 and five curve sections (411, 412, 413, 414, 415 and 421, 422, 423, 424, 425) each arranged gradually.
  • FIG. 3a-3 and 3a-4 shows longitudinal cross-sections of two neighbouring curves (41' and 42') of a heat exchanger plate (1) of Figure 1 and Figure 2 and five curve sections (411', 412', 413', 414' and 415' and 421', 422', 423', 424', 425') each arranged gradually.
  • the height of the curves has at least two different measurement value (H1 and H2) of each curve (41, 42 and 41', 42') along the longitudinal axis.
  • the said measurement values are generally indicated as H. each measurement value may vary as H1, H2, H3...
  • Figures 3b-1, 3b-2, 3b-3 and 3b-4 show longitudinal cross-sections of two neighbouring curves (41, 42 and 41', 42') of each heat exchanger plate (1 and 1') and curve sections (416, 417, 426, 427; 416 ', 417 ', 426 ', 427 ') forming the said curves.
  • height measurement value within each curve section (416, 417, 426, 427; 416 ', 417 ', 426 ', 427 ') varies between two different height measurement values (H1, H2).
  • FIG. 3c shows another potentially different embodiment of the invention.
  • Figures 3c-1, 3c-2, 3c-3 and 3c-4 show longitudinal cross-sections of two neighbouring curves (41, 42 and 41', 42') of each heat exchanger plate (1 and 1')) and curve sections (418, 419, 4110, 4111, 428, 429, 4210, 4211; 418', 419', 4110',4111' 4110, 4111, 428', 429' 4210', 4211',) forming the said curves.
  • height measurement value within each curve section (418, 419, 418', 419', ) varies between two different height measurement values (H1 and H2, H3 and H4). While the height measurement values (H2 and H3) of two succeeding curve sections (418 and 419, 4110 and 4111, 418' and 419', 4110' and 4111') in the zone where they are interconnected are different, the height measurement values (for 419 and 4110, 419' and 4110' , H4; for 429 and 4210, 429' and 4210' , H1) of some curve sections succeeding each other in zones where they are interconnected are identical.
  • Figure 4 shows top view of a plate package consisting of more than one neighbouring exchanger plates (1 and 1') shown in Figure 1 with hidden edge (terminal) forms.
  • the figure shows the status where heat exchanger plates (1 and 1') of fishbone like profile (curves (4 and 4')) show opposite directions as in Figure 1 , and thus curves (4 and 4') of neighbouring exchanger plates (1 and 1') contact each other in projection plane.
  • Figures 5a and 5b show two cross-sections parallel to each other passing through a plate package consisting of four exchanger plates (1 and 1') and indicated with A-A and B-B cross-section lines according to Figure 4 .
  • contours (S1 and S1') of exchanger plates (1 and 1') show difference.
  • Limited flow channels (8 and 9) for fluids conducting heat exchange in neighbouring exchanger plates (1 and 1') are shown.
  • the flowing channel (8) is a primary circuit flowing channel where a heater or heat giving fluid passes and flowing channel (9) forms the secondary flowing channel where cooler or heat taking fluid passes.

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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)
EP10155028A 2009-03-12 2010-03-01 Échangeur thermique à plaques Withdrawn EP2233873A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR200901954 2009-03-12

Publications (1)

Publication Number Publication Date
EP2233873A1 true EP2233873A1 (fr) 2010-09-29

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EP10155028A Withdrawn EP2233873A1 (fr) 2009-03-12 2010-03-01 Échangeur thermique à plaques

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EP (1) EP2233873A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103776291A (zh) * 2014-01-25 2014-05-07 江苏远卓设备制造有限公司 一种换热板组以及应用其制成的不等流道板式换热器
ITPD20130187A1 (it) * 2013-07-03 2015-01-04 Zilmet S P A Scambiatore asimmetrico con canali ausiliari di collegamento fra spire
JP2016540181A (ja) * 2013-12-10 2016-12-22 スウェップ インターナショナル アクティエボラーグ 改良された流れを有する熱交換器
JP2017015350A (ja) * 2015-07-03 2017-01-19 株式会社日阪製作所 プレート式熱交換器
WO2017122428A1 (fr) * 2016-01-13 2017-07-20 株式会社日阪製作所 Échangeur de chaleur à plaques
DE102021207707A1 (de) 2021-07-20 2023-01-26 Robert Bosch Gesellschaft mit beschränkter Haftung Plattenwärmeübertragervorrichtung, Plattenwärmeübertrager, Verfahren zur Herstellung einer Plattenwärmeübertragervorrichtung und Verwendung eines Plattenwärmeübertragers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993000563A1 (fr) * 1991-06-24 1993-01-07 Alfa-Laval Thermal Ab Echangeur thermique a plaques
JPH11173771A (ja) * 1997-12-10 1999-07-02 Daikin Ind Ltd プレート式熱交換器
EP1630510A1 (fr) * 2004-08-28 2006-03-01 SWEP International AB Echangeur de chaleur à plaques
WO2009112031A2 (fr) * 2008-03-13 2009-09-17 Danfoss A/S Échangeur de chaleur à double plaque

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993000563A1 (fr) * 1991-06-24 1993-01-07 Alfa-Laval Thermal Ab Echangeur thermique a plaques
JPH11173771A (ja) * 1997-12-10 1999-07-02 Daikin Ind Ltd プレート式熱交換器
EP1630510A1 (fr) * 2004-08-28 2006-03-01 SWEP International AB Echangeur de chaleur à plaques
EP1630510B1 (fr) 2004-08-28 2007-01-03 SWEP International AB Echangeur de chaleur à plaques
WO2009112031A2 (fr) * 2008-03-13 2009-09-17 Danfoss A/S Échangeur de chaleur à double plaque

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20130187A1 (it) * 2013-07-03 2015-01-04 Zilmet S P A Scambiatore asimmetrico con canali ausiliari di collegamento fra spire
WO2015001506A1 (fr) * 2013-07-03 2015-01-08 Zilmet Spa Echangeur asymétrique comportant des canaux auxiliaires pour relier des courbures
JP2016540181A (ja) * 2013-12-10 2016-12-22 スウェップ インターナショナル アクティエボラーグ 改良された流れを有する熱交換器
CN103776291A (zh) * 2014-01-25 2014-05-07 江苏远卓设备制造有限公司 一种换热板组以及应用其制成的不等流道板式换热器
JP2017015350A (ja) * 2015-07-03 2017-01-19 株式会社日阪製作所 プレート式熱交換器
WO2017122428A1 (fr) * 2016-01-13 2017-07-20 株式会社日阪製作所 Échangeur de chaleur à plaques
JPWO2017122428A1 (ja) * 2016-01-13 2018-07-12 株式会社日阪製作所 プレート式熱交換器
EP3404350A4 (fr) * 2016-01-13 2019-09-18 Hisaka Works, Ltd. Échangeur de chaleur à plaques
DE102021207707A1 (de) 2021-07-20 2023-01-26 Robert Bosch Gesellschaft mit beschränkter Haftung Plattenwärmeübertragervorrichtung, Plattenwärmeübertrager, Verfahren zur Herstellung einer Plattenwärmeübertragervorrichtung und Verwendung eines Plattenwärmeübertragers

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