WO2009015076A1 - Modérateur d'écoulement - Google Patents

Modérateur d'écoulement Download PDF

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Publication number
WO2009015076A1
WO2009015076A1 PCT/US2008/070628 US2008070628W WO2009015076A1 WO 2009015076 A1 WO2009015076 A1 WO 2009015076A1 US 2008070628 W US2008070628 W US 2008070628W WO 2009015076 A1 WO2009015076 A1 WO 2009015076A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
heat exchange
exchange device
fluid flow
conduit
Prior art date
Application number
PCT/US2008/070628
Other languages
English (en)
Inventor
Hemant Kumar
Jes Hansen Petersen
Original Assignee
Apv North America, Inc.
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 Apv North America, Inc. filed Critical Apv North America, Inc.
Priority to CN200880100345A priority Critical patent/CN101842656A/zh
Priority to SE1000176A priority patent/SE1000176A1/sv
Priority to DE112008001953T priority patent/DE112008001953T5/de
Priority to EP08796363A priority patent/EP2183539A1/fr
Publication of WO2009015076A1 publication Critical patent/WO2009015076A1/fr

Links

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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box

Definitions

  • This invention generally relates to heat exchange devices for fluids.
  • the invention relates to a fluid flow moderator for a plate heat exchange device, a plate heat exchange device containing the fluid flow moderator and to a method of moderating fluid flow.
  • plate heat exchange devices for fluids are assembled from a series of metallic plates packed vertically in sequence to form a series of fluid chambers.
  • the fluid chambers in a plate heat exchange device may alternately contain two fluids between which heat is to be exchanged.
  • fluid ports may be positioned adjacent the corners of the plates to form a manifold through the device which allows the flow (eg, by mechanical pumping) of fluid through and between the alternating fluid chambers.
  • each plate provides a heat exchange interface between the two fluids. This facilitates heat transfer between the fluids as they flow through the device cooling the higher temperature fluid while simultaneously heating the lower temperature fluid.
  • a fluid flow moderator for a plate heat exchange device comprising an open-sided fluid conduit adapted for positioning adjacent to a fluid port of a plate heat exchange device wherein said fluid conduit has a fluid deflection surface for moderating fluid flow.
  • the fluid flow moderator of the invention reduces localised areas of fluid turbulence in a plate heat exchange device and also provides a means for obtaining improved evenness of fluid distribution over the plates compared to conventional plate heat exchange devices.
  • a plate heat exchange device comprising a fluid flow moderator, wherein said fluid flow moderator comprises an open-sided fluid conduit positioned adjacent to a fluid port of the plate heat exchange device wherein said fluid conduit has a fluid deflection surface for moderating fluid flow.
  • a method of moderating fluid flow in a plate heat exchange device comprising positioning an open-sided fluid conduit adjacent to a fluid port of a plate heat exchange device wherein said fluid conduit has a surface for deflecting a fluid and moderating fluid flow in said heat exchange device.
  • the fluid conduit may be a partial cylinder.
  • the fluid conduit may be an open-ended and hollow partial cylinder.
  • This provides a fluid conduit with an internal deflection surface which is arcuate, which assists deflection of the fluid in a controlled radial direction through a fluid port and into the fluid chamber through the open- ended portion of the cylinder.
  • arcuate means shapes which may correspond to partial circles or partial ellipses.
  • U- or V-shaped internal surfaces for the fluid conduit may also be considered to be within the scope of the invention.
  • the open-sided portion of the fluid conduit can be an opening with parallel edges (eg, a longitudinal opening), which assists in the even distribution of the fluid in a fluid chamber by complementing the radial deflection of fluid from an arcuate deflection surface.
  • the open-sided fluid conduit may include a conduit which has a side wall which is only partially open.
  • this may be a fluid conduit which is an open-ended hollow cylinder with one or more holes and/or slits present in its side wall. These holes and/or slits may be provided at locations in the wall which direct fluid flow in a desired direction.
  • the term open-sided fluid conduit is intended to include all of the above-described constructions and any equivalents providing the same function.
  • the fluid conduit may be formed of a metallic material. However, in certain circumstances the fluid conduit may be formed of a plastics or other synthetic material for use in conditions where for example corrosive fluids are being cooled or heated. In any case, the skilled person will be able to select the material and dimensions for the fluid conduit dependent upon the environment in which it will be used.
  • the fluid conduit may have a sealing ring to provide a seal between the fluid conduit and the fluid port. This can help to ensure that substantially all of the fluid flowing through a fluid port flows through the fluid conduit so that fluid flow remains controlled, homogeneous and without fluid turbulence. This is because fluid flowing between an external surface of a fluid conduit and a rim of a fluid port may create conditions of fluid turbulence.
  • the sealing ring may be welded on to the fluid conduit or otherwise connected to the fluid conduit by any other suitable means known to the person skilled in the art.
  • the sealing ring may be constructed from a resilient temperature- and/or corrosion-resistant rubber material or a metallic material.
  • the fluid conduit may also be provided with a handle which provides a convenient means for removing the fluid flow moderator from a heat exchange device.
  • the handle may be integral with the sealing ring or be attached to the fluid conduit separately.
  • the fluid deflection surface is provided with indentations, corrugations and/or holes. These features can be arranged in a manner which assists in optimising flow distribution over the heat- exchange plates.
  • an arcuate fluid deflection surface may be provided which subtends an angle of less than 360°, less than or equal to 270°, less than or equal to 180°, or less than or equal to 90°.
  • fluid flow distribution over a heat-exchange plate can be modified to suit the requirements of the heat exchange device.
  • a plate heat exchange device may be provided with a fluid flow moderator positioned adjacent a fluid port to moderate fluid flow as a fluid enters and/or exits a fluid port of a heat exchange plate in the heat exchange device.
  • the plate heat exchange device may be provided with a series of heat exchange plates with fluid ports assembled to form a manifold defining flow passages for fluid flow through the heat exchange device.
  • the fluid used in accordance with the present invention may be a liquid or a gas.
  • the fluid flow moderator, heat exchange device and method of moderating fluid flow in accordance with the invention are equally applicable both to processes in which a high-temperature fluid is cooled and to processes in which a low temperature fluid is heated.
  • Figure 1 shows a plan view of a conventional plate heat exchange device
  • Figure 2 shows a partial schematic view of heat exchange plates packed inside the plate heat exchange device of Figure 1 forming fluid chambers and a counterflow arrangement of fluids through the chambers;
  • Figure 3 shows partial diagrammatic representations of a conventional plate heat exchange device without a fluid flow moderator according to the invention ( Figure 3A) and a plate heat exchange device with a fluid flow moderator according to the invention ( Figure 3B);
  • Figure 4 shows a plan view of a first embodiment of the fluid flow moderator of the invention
  • Figure 5 shows cross-sectional views of second (Figure 5A), third ( Figure 5B) and fourth ( Figure 5C) embodiments of the fluid flow moderator according to the invention
  • Figure 6 shows plan views of fluid distribution over the surface of a heat exchange plate in a heat exchange device according to the invention having the fluid flow moderators of Figures 5A (Figure 6A), 5B (Figure 6B) and 5 C ( Figure 6C), respectively, fitted; and
  • Figure 7 shows a cross-sectional view of a fluid flow moderator according to the invention.
  • FIG. 1 there is shown a plate heat exchange device 1 for heat exchange between two fluids flowing through the device whereby the higher temperature fluid is cooled and the lower temperature fluid is heated.
  • the device 1 has a head support 5, an end support 10, a top carrying bar 15 and a bottom carrying bar 20.
  • Heat exchange plates (not shown) are vertically packed between head support 5 and end support 10 and secured by tie bars 21 on opposing sides of plate heat exchange device 1 to define a series of narrow fluid chambers (not shown) through which the two fluids can flow.
  • fluid inlet ports 25,26 and fluid outlet ports 30,31 located on head support 5 provide a counterflow arrangement where one fluid flows between fluid inlet port 25 and fluid outlet port 30, and the other fluid flows between fluid inlet port 26 and fluid outlet port 31.
  • the fluids may not be in a counterflow arrangement and can flow in the same direction through the fluid chambers 40.
  • Heat exchange plates 35 arranged in a sequence internally within the plate heat exchange device of Figure 1 (not shown) to define a series of fluid chambers 40. Heat exchange plates 35 provide a heat exchange interface between fluid chambers 40 and have fluid ports 45 for the flow of a fluid between the fluid chambers 40.
  • the fluid chambers 40 alternately provide a fluid flow passage for a first fluid 50 (fluid chambers 40a) and a second fluid 55 (fluid chambers 40b).
  • the fluid flow direction of fluids 50 and 55 through fluid chambers 40 is shown by arrows 60 and 65, respectively.
  • Fluid 50 enters heat exchange device 1 at fluid inlet port 25 near the top of heat exchange device 1 and exits at fluid outlet port 30 near the bottom of heat exchange device 1.
  • Fluid 55 enters heat exchange device 1 at fluid inlet port 26 near the bottom of heat exchange device 1 and exits at fluid outlet port 31 near the top of heat exchange device 1. This provides a fluid counterflow arrangement of the two fluids 50,55 in heat exchange device 1.
  • Figure 3 A shows heat exchange plates 35 of heat exchange device 1 separated by gaskets 75 and fluid 55 flowing through ports 45 in the direction of arrow 65.
  • Channels 76 are present adjacent gaskets 75 resulting in localised turbulence of fluid 55 as shown by curved arrows 80.
  • Arrows 85 show the direction of the flow of fluid 55 through fluid chambers 40b.
  • the independent fluid flow system of fluid chambers 40a containing cooling fluid 50 is also shown.
  • a fluid flow moderator 90 which has a partially cylindrical fluid conduit 95 with an arcuate internal deflection surface 100 and a longitudinal opening 1 10 defined by edges 115.
  • Deflection surface 100 has indentations 105.
  • Figure 3B shows fluid flow moderator 90 positioned adjacent ports 45.
  • fluid 55 is blocked from migrating into channels 76 by deflection surface 100, thereby reducing fluid turbulence and improving the flow efficiency of fluid 55 through plate heat exchange device 1. Reduced loss of fluid pressure occurs and heat exchange from fluid 55 in fluid chambers 40b to fluid 50 in fluid chambers 40a is improved.
  • Fluid flow moderator 90 of Figure 5A has a fluid conduit 96 with an arcuate deflection surface 101 subtending an angle of less than 180°.
  • Fluid flow moderator 90 of Figure 5B has a fluid conduit 97 with an arcuate deflection surface 102 subtending an angle of between 180° and 270°.
  • Fluid flow moderator 90 of Figure 5C has a fluid conduit 98 with an arcuate deflection surface 103 subtending an angle of between 180° and 270° and also has perforations 120.
  • the different angles and surface features of the arcuate deflection surface 101, 102, 103 provide fluid flow moderators 90 with different deflection properties to suit individual fluid flow distribution requirements. This provides versatility and adaptability to the present invention.
  • fluid flow should be distributed over heat exchange plate 35 in the directions A and B shown by arrows 125 and 130, respectively.
  • flow is predominantly in direction A (ie, arrow 125), because this flow direction provides the least overall resistance between the vertically oriented fluid ports 45. This results in an uneven distribution of fluid over heat exchange plate 40 resulting in inefficient heat exchange.
  • fluid flow moderator 90 fluid (not shown) entering a fluid chamber (not shown) through port 45 is deflected by the arcuate deflection surface 101 evenly in the directions A and B.
  • fluid flow moderator 90 by using fluid flow moderator 90, fluid (not shown) entering a fluid chamber (not shown) through a port 45 is deflected by the arcuate deflection surfaces 102 and 103 in a radial pattern over a wide area of heat exchange plate 40 in the direction of arrows 105.
  • the fluid is evenly distributed as it flows over heat exchange plate 35 providing an optimal level of contact with heat exchange plate 35 and efficient heat exchange.
  • FIG. 7 With reference to Figure 7, there is shown a fluid flow moderator 90 with fluid conduit 95 having fluid deflection surface 100 positioned adjacent fluid ports 45 with sealing rings 140 attached to the ends 101 of fluid conduit 95.
  • Sealing ring 140 provides a seal between fluid conduit 95 and fluid port 45 so that substantially all of the fluid (not shown) is directed through fluid flow moderator 90.
  • the sealing rings 110 are made from a temperature- and chemical resistant rubber and provide a tight seal of fluid conduit 90 with ports 45 (not shown).
  • sealing ring 140 is made of a metallic material and is welded to fluid conduit 95.

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)

Abstract

L'invention concerne un modérateur d'écoulement de fluide pour un dispositif d'échange de chaleur à plaques comprenant un conduit de fluide ayant un côté ouvert adapté pour un positionnement adjacent à un orifice de fluide d'un dispositif d'échange de chaleur à plaques, ledit conduit de fluide ayant une surface de déviation de fluide pour modérer l'écoulement du fluide. Un procédé de modération d'écoulement de fluide dans un dispositif d'échange de chaleur à plaques comprend le positionnement d'un conduit de fluide ayant un côté ouvert de façon adjacente à un orifice de fluide d'un dispositif d'échange de chaleur à plaques, ledit conduit de fluide ayant une surface pour dévier un fluide et la modération de l'écoulement de fluide dans ledit dispositif d'échange de chaleur.
PCT/US2008/070628 2007-07-25 2008-07-21 Modérateur d'écoulement WO2009015076A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN200880100345A CN101842656A (zh) 2007-07-25 2008-07-21 流动调节器
SE1000176A SE1000176A1 (sv) 2007-07-25 2008-07-21 Flödesreglerare
DE112008001953T DE112008001953T5 (de) 2007-07-25 2008-07-21 Strömungsmoderator
EP08796363A EP2183539A1 (fr) 2007-07-25 2008-07-21 Modérateur d'écoulement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/828,069 2007-07-25
US11/828,069 US20090025918A1 (en) 2007-07-25 2007-07-25 Flow moderator

Publications (1)

Publication Number Publication Date
WO2009015076A1 true WO2009015076A1 (fr) 2009-01-29

Family

ID=40281744

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/070628 WO2009015076A1 (fr) 2007-07-25 2008-07-21 Modérateur d'écoulement

Country Status (7)

Country Link
US (1) US20090025918A1 (fr)
EP (1) EP2183539A1 (fr)
KR (1) KR20100075828A (fr)
CN (1) CN101842656A (fr)
DE (1) DE112008001953T5 (fr)
SE (1) SE1000176A1 (fr)
WO (1) WO2009015076A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5689345B2 (ja) * 2011-03-29 2015-03-25 株式会社ティラド 積層型熱交換器
JP6047181B2 (ja) * 2015-01-16 2016-12-21 大阪瓦斯株式会社 固体酸化物形燃料電池システム
JP6298135B2 (ja) * 2016-10-03 2018-03-20 大阪瓦斯株式会社 燃料電池システム用熱交換器
JP7018299B2 (ja) * 2017-11-22 2022-02-10 株式会社日阪製作所 プレート式熱交換器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2052723A (en) * 1979-06-04 1981-01-28 Apv Co Ltd Plate heat exchanger
US4524823A (en) * 1983-03-30 1985-06-25 Suddeutsch Kuhlerfabrik Julius Fr. Behr GmbH & Co. KG Heat exchanger having a helical distributor located within the connecting tank
US6179051B1 (en) * 1997-12-24 2001-01-30 Delaware Capital Formation, Inc. Distributor for plate heat exchangers
US6702006B2 (en) * 2000-05-19 2004-03-09 Alfa Laval Corporate Ab Plate pack, flow distribution device and plate heat exchanger
US6796374B2 (en) * 2002-04-10 2004-09-28 Dana Canada Corporation Heat exchanger inlet tube with flow distributing turbulizer
US20070039724A1 (en) * 2005-08-18 2007-02-22 Trumbower Michael W Evaporating heat exchanger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303124A (en) * 1979-06-04 1981-12-01 The A.P.V. Company Limited Plate heat exchanger
US4287945A (en) * 1979-07-03 1981-09-08 The A.P.V. Company Limited Plate heat exchanger
SE516416C2 (sv) * 2000-05-19 2002-01-15 Alfa Laval Ab Plattpaket, värmeöverföringsplatta, plattvärmeväxlaresamt anv ändning av värmeöverföringsplatta
US7036562B2 (en) * 2002-02-26 2006-05-02 Honeywell International, Inc. Heat exchanger with core and support structure coupling for reduced thermal stress

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2052723A (en) * 1979-06-04 1981-01-28 Apv Co Ltd Plate heat exchanger
US4524823A (en) * 1983-03-30 1985-06-25 Suddeutsch Kuhlerfabrik Julius Fr. Behr GmbH & Co. KG Heat exchanger having a helical distributor located within the connecting tank
US6179051B1 (en) * 1997-12-24 2001-01-30 Delaware Capital Formation, Inc. Distributor for plate heat exchangers
US6702006B2 (en) * 2000-05-19 2004-03-09 Alfa Laval Corporate Ab Plate pack, flow distribution device and plate heat exchanger
US6796374B2 (en) * 2002-04-10 2004-09-28 Dana Canada Corporation Heat exchanger inlet tube with flow distributing turbulizer
US20070039724A1 (en) * 2005-08-18 2007-02-22 Trumbower Michael W Evaporating heat exchanger

Also Published As

Publication number Publication date
KR20100075828A (ko) 2010-07-05
EP2183539A1 (fr) 2010-05-12
US20090025918A1 (en) 2009-01-29
SE1000176A1 (sv) 2010-03-10
CN101842656A (zh) 2010-09-22
DE112008001953T5 (de) 2010-09-09

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