US20140366573A1 - Method and apparatus of forming heat exchanger tubes - Google Patents

Method and apparatus of forming heat exchanger tubes Download PDF

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Publication number
US20140366573A1
US20140366573A1 US14/363,932 US201214363932A US2014366573A1 US 20140366573 A1 US20140366573 A1 US 20140366573A1 US 201214363932 A US201214363932 A US 201214363932A US 2014366573 A1 US2014366573 A1 US 2014366573A1
Authority
US
United States
Prior art keywords
wall
heat exchange
tube
refrigerant
exchange tube
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.)
Abandoned
Application number
US14/363,932
Other languages
English (en)
Inventor
Patrick Louis Clavette
Satyam Bendapudi
Jefferi J. Covington
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.)
Carrier Corp
Original Assignee
Carrier Corp
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 Carrier Corp filed Critical Carrier Corp
Priority to US14/363,932 priority Critical patent/US20140366573A1/en
Assigned to CARRIER CORPORATION reassignment CARRIER CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CLAVETTE, PATRICK LOUIS, BENDAPUDI, SATYAM, COVINGTON, JEFFERI J.
Publication of US20140366573A1 publication Critical patent/US20140366573A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B21C23/085—Making tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F28F1/422—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular 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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
    • F28F13/187—Heat-exchange surfaces provided with microstructures or with porous coatings especially adapted for evaporator surfaces or condenser surfaces, e.g. with nucleation sites
    • 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
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2260/00—Heat exchangers or heat exchange elements having special size, e.g. microstructures
    • F28F2260/02—Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means

Definitions

  • the subject matter disclosed herein relates to heat exchangers. More specifically, the present disclosure relates to forming enhanced tubes for microchannel heat exchangers.
  • microchannel heat exchanger systems are refrigerant to air applications. These systems include a plurality of microchannel tubes, typically formed of aluminum. The tubes each contain a number of channels or ports through which a flow of refrigerant is circulated. Thermal energy from the refrigerant flow is dissipated to an airflow, typically in a cross-flow orientation relative to the flow in the tubes. Such microchannel heat exchangers are typically applied to motor vehicle cooling systems.
  • Typical industrial air conditioning and refrigeration systems include a refrigerant evaporator or chiller. Chillers remove heat from a cooling medium that enters the unit, and deliver refreshed cooling medium to the air conditioning or refrigeration system to effect cooling of a structure, device or a given volume. Refrigerant evaporators or chillers use a liquid refrigerant or other working fluid to accomplish this task. Refrigerant evaporators or chillers lower the temperature of a cooling medium, such as water or other fluid, below that which could be obtained from ambient conditions.
  • a cooling medium such as water or other fluid
  • chiller is a flooded chiller, which typically includes a number of typically round heat exchange tubes submerged in a volume of a two-phase boiling refrigerant, having a specified boiling temperature.
  • a cooling medium often water, is processed by the chiller.
  • the cooling medium enters the evaporator and is delivered to the heat exchange tubes.
  • the cooling medium passing through the tubes releases its thermal energy to the boiling refrigerant.
  • a heat exchange tube for a refrigerant-flooded evaporator includes a tube body and a plurality of channels for conveying a cooling medium therethrough located in the tube body.
  • One or more outer wall textural elements are included at the outer wall of the tube body to improve thermal energy transfer between the cooling medium and a volume of boiling refrigerant.
  • a refrigerant-flooded evaporator includes a volume of two-phase refrigerant and a plurality of heat exchange tubes submerged in the volume of refrigerant.
  • At least one heat exchange tube of the plurality of heat exchange tubes includes a tube body and a plurality of channels having a cooling medium flowing therethrough located in the tube body.
  • One or more outer wall textural elements are located at the outer wall of the tube body to improve thermal energy transfer between the cooling medium and the volume of two-phase refrigerant.
  • a method of forming a heat exchange tube for a refrigerant-flooded evaporator includes urging a billet into an extruded section and forming the billet into two tube halves including an outer wall and an inner wall having a plurality of channel halves.
  • a textural element is formed at one or more of the outer wall and the inner wall via one or more rotating dies, and the two tube halves are joined to form the heat exchange tube.
  • FIG. 1 is a schematic view of a method of forming a heat exchange tube
  • FIG. 2 is a perspective view of an embodiment of a heat exchange tube
  • FIG. 3 is a perspective view of a heat exchange tube half
  • FIG. 4 is a schematic of textural elements of an inner wall of a tube half
  • FIG. 5 is a schematic view of textural elements of an outer wall of a tube half.
  • FIG. 6 is a schematic view of another embodiment of a method of forming a heat exchange tube.
  • FIG. 1 Shown in FIG. 1 is a schematic of a method of forming microchannel tubes 10 for a refrigerant flooded evaporator.
  • the method is utilized for forming the microchannel tubes 10 which, as shown in FIG. 2 , include a tube body 12 that may be non-circular in shape, for example, oval or elliptical.
  • a plurality of channels 14 , or ports, is configured for refrigerant flow therethrough.
  • the tube body 12 may include any number of channels, for example between about 2 and 20 channels.
  • the tube body 12 is about 1 inch in width and includes about 10-16 channels 14 therein.
  • the tube body may include about 4-6 channels 14 therein. It is to be appreciated that these embodiments are merely exemplary and other configurations are contemplated within the present scope.
  • the method begins with a billet 16 of a selected raw material.
  • the material is copper or a copper alloy, but other materials, for example, aluminum and aluminum alloys are contemplated within the scope of the present disclosure.
  • the billet is fed into a heating section 18 in pairs by a ram 20 .
  • the billet 16 pairs are heated to a selected temperature, and then urged through an extrusion section 22 , where the billet pairs 16 are shaped into tube halves 24 , shown also in FIG. 3 .
  • Each tube half 24 includes an outer wall 26 and an inner wall 28 that includes a plurality of channel halves 30 .
  • the extruded tube halves 24 are then urged through a texture section 32 .
  • the texture section 32 includes one or more rotating dies 34 affixed to bearings (not shown) and driven by separate or shared drive motors (not shown).
  • the rotating dies 34 emboss textural elements or patterns into the outer wall 26 and/or the channel halves 30 of the tube halves 24 .
  • the tube halves 24 then proceed to a unitization section 38 where they are secured to each other such as for example by brazing or solid state diffusion bonding. It is contemplated within the scope of the current invention that other suitable joining techniques may also be used.
  • the textural elements or patterns added to the outer wall 26 and or the channel halves 30 may take many forms.
  • the inner wall 28 may be embossed with a plurality of dimples 40 , or a plurality of grooves 42 or fins 44 that are configured to increase heat transfer between a cooling medium 46 flowing through the channels 14 and the outer wall 26 by improving mixing of the cooling medium 46 in the channels 14 .
  • the grooves 42 or fins 44 may be arranged in a helical and/or cross-hatched pattern. As shown in FIG.
  • the textural elements on the outer wall 26 may be ridges 48 , pockets 50 , or other similar shape with sharp edges to improve nucleate boiling of a volume of refrigerant 52 in which the tubes 10 are submerged.
  • the ridges 48 or other textures may be arranged helically of in a cross-hatched pattern on the outer wall 26 .
  • the tube halves 24 are urged over a rotating die 34 which forms patterns or textures in the channel halves 30 of the tube halves 24 .
  • the tube halves 24 then proceed to the unitization section 38 where they are joined.
  • the joined tube 10 then proceeds through another texture section 32 , including more rotating dies 34 that apply textural elements or patterns to the outer wall 26 of the tube 10 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US14/363,932 2011-12-08 2012-11-28 Method and apparatus of forming heat exchanger tubes Abandoned US20140366573A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/363,932 US20140366573A1 (en) 2011-12-08 2012-11-28 Method and apparatus of forming heat exchanger tubes

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161568424P 2011-12-08 2011-12-08
US14/363,932 US20140366573A1 (en) 2011-12-08 2012-11-28 Method and apparatus of forming heat exchanger tubes
PCT/US2012/066822 WO2013085771A1 (en) 2011-12-08 2012-11-28 Method and apparatus of forming heat exchanger tubes

Publications (1)

Publication Number Publication Date
US20140366573A1 true US20140366573A1 (en) 2014-12-18

Family

ID=47351999

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/363,932 Abandoned US20140366573A1 (en) 2011-12-08 2012-11-28 Method and apparatus of forming heat exchanger tubes

Country Status (4)

Country Link
US (1) US20140366573A1 (zh)
EP (1) EP2788705B1 (zh)
CN (1) CN103998890B (zh)
WO (1) WO2013085771A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150323222A1 (en) * 2014-05-07 2015-11-12 Keith Allen Langenbeck Heat Exchanger Device and System Technologies
US20160178187A1 (en) * 2014-12-22 2016-06-23 Horiba Stec, Co., Ltd. Heating type vaporizing device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110538942B (zh) * 2018-12-03 2020-10-20 青岛常蒸蒸发器科技有限公司 一种用于制造蒸发器的弯管机
DE102019106012A1 (de) * 2019-03-08 2020-09-10 Mahle International Gmbh Wärmetauscheranordnung und Wärmetauscher

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796693A (en) * 1985-10-31 1989-01-10 Wieland-Werke Ag Finned tube with indented groove base and method of forming same
JPH08247343A (ja) * 1995-03-09 1996-09-27 Ishikawajima Harima Heavy Ind Co Ltd 伝熱管及び該伝熱管の製造方法
US5560425A (en) * 1988-08-12 1996-10-01 Calsonic Corporation Multi-flow type heat exchanger
US20010006106A1 (en) * 1999-12-28 2001-07-05 Andreas Beutler Heat-exchanger tube structured on both side and a method for its manufacture
US20040069477A1 (en) * 2000-11-24 2004-04-15 Naoki Nishikawa Heat exchanger tube and heat exchanger
US20070287334A1 (en) * 2006-06-13 2007-12-13 Calsonic Kansei Corporation Flat tube adapted for heat exchanger
WO2008150434A1 (en) * 2007-05-31 2008-12-11 Whitemoss, Inc. Heat exchanger
US20090090495A1 (en) * 2006-03-10 2009-04-09 Behr Gmbh & Co. Kg Heat Exchanger for a Motor Vehicle
US20090229801A1 (en) * 2008-03-17 2009-09-17 Graeme Stewart Radiator tube dimple pattern

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US3092470A (en) * 1959-07-29 1963-06-04 Continental Can Co Preparation of sheet stock having longitudinal external weakenings therein and product thereof
JPS5442059A (en) * 1977-09-09 1979-04-03 Ebara Corp Multitubular evaporator
US5062786A (en) * 1988-12-12 1991-11-05 Canon Kabushiki Kaisha Molding device for molding optical elements
US5351397A (en) * 1988-12-12 1994-10-04 Olin Corporation Method of forming a nucleate boiling surface by a roll forming
DE10115513A1 (de) * 2001-03-28 2002-10-10 Behr Gmbh & Co Wärmeübertrager
US20100326644A1 (en) * 2009-06-30 2010-12-30 Shui-Hsu Hung Plane-type heat-dissipating structure with high heat-dissipating effect and method for manufacturing the same
DE102009051280A1 (de) * 2009-10-29 2011-05-12 Arup Alu-Rohr Und -Profil Gmbh Halbzeug-Flachrohr zur Aufteilung in Fertigflachrohre, Verfahren zur Herstellung der Fertigflachrohre, sowie Wärmetauscher
EP2724107B1 (en) * 2011-06-27 2017-09-27 Carrier Corporation Shell and tube heat exchanger with micro-channels

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796693A (en) * 1985-10-31 1989-01-10 Wieland-Werke Ag Finned tube with indented groove base and method of forming same
US5560425A (en) * 1988-08-12 1996-10-01 Calsonic Corporation Multi-flow type heat exchanger
JPH08247343A (ja) * 1995-03-09 1996-09-27 Ishikawajima Harima Heavy Ind Co Ltd 伝熱管及び該伝熱管の製造方法
US20010006106A1 (en) * 1999-12-28 2001-07-05 Andreas Beutler Heat-exchanger tube structured on both side and a method for its manufacture
US20040069477A1 (en) * 2000-11-24 2004-04-15 Naoki Nishikawa Heat exchanger tube and heat exchanger
US20090090495A1 (en) * 2006-03-10 2009-04-09 Behr Gmbh & Co. Kg Heat Exchanger for a Motor Vehicle
US20070287334A1 (en) * 2006-06-13 2007-12-13 Calsonic Kansei Corporation Flat tube adapted for heat exchanger
WO2008150434A1 (en) * 2007-05-31 2008-12-11 Whitemoss, Inc. Heat exchanger
US20090229801A1 (en) * 2008-03-17 2009-09-17 Graeme Stewart Radiator tube dimple pattern

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WATANABE, SATOYUKI, HEATING PIPE AND MANUFACTURE THEREOF, Machine-generated English Translation of JP08247343A, European Patent Office *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150323222A1 (en) * 2014-05-07 2015-11-12 Keith Allen Langenbeck Heat Exchanger Device and System Technologies
US20160178187A1 (en) * 2014-12-22 2016-06-23 Horiba Stec, Co., Ltd. Heating type vaporizing device

Also Published As

Publication number Publication date
EP2788705B1 (en) 2017-03-01
CN103998890A (zh) 2014-08-20
EP2788705A1 (en) 2014-10-15
CN103998890B (zh) 2019-07-16
WO2013085771A1 (en) 2013-06-13

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Date Code Title Description
AS Assignment

Owner name: CARRIER CORPORATION, CONNECTICUT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CLAVETTE, PATRICK LOUIS;BENDAPUDI, SATYAM;COVINGTON, JEFFERI J.;SIGNING DATES FROM 20111214 TO 20111215;REEL/FRAME:033058/0061

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION