US20140262182A1 - Micro channel heat exchanger alloy system - Google Patents

Micro channel heat exchanger alloy system Download PDF

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Publication number
US20140262182A1
US20140262182A1 US14/352,510 US201214352510A US2014262182A1 US 20140262182 A1 US20140262182 A1 US 20140262182A1 US 201214352510 A US201214352510 A US 201214352510A US 2014262182 A1 US2014262182 A1 US 2014262182A1
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US
United States
Prior art keywords
manifolds
tube
circular tubes
series aluminum
aluminum
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
US14/352,510
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English (en)
Inventor
Thomas J. Garosshen
Mary Teresa Lombardo
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 US14/352,510 priority Critical patent/US20140262182A1/en
Assigned to CARRIER CORPORATION reassignment CARRIER CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LOMBARDO, Mary Teresa, GAROSSHEN, THOMAS J.
Publication of US20140262182A1 publication Critical patent/US20140262182A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • F28F1/126—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 consisting of zig-zag shaped fins
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
    • 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
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys

Definitions

  • aspects of the present invention relate to micro channel heat exchangers (MCHXs) and, more particularly, to an MCHX alloy system.
  • Micro channel heat exchangers MCHXs and their alloys of construction were developed for automotive applications. Initial applications of these alloy systems resulted in poor corrosion performance, however, in heating, ventilation and air conditioning (HVAC) applications, such as roof top chillers. This problem is especially pronounced in coastal and/or industrial environments, where deterioration of the MCHX tubing can result in refrigerant leaks and system shutdown within a year. In addition, in coastal locations, fin disbonding due to corrosion effects may be a significant problem.
  • HVAC heating, ventilation and air conditioning
  • a micro channel heat exchanger alloy system includes first and second manifolds, including a 3000 series aluminum, each of the first and second manifolds being formed to define a respective interior therein; a tube, including at least one of 31108 and 31104 alloy material, extending from the first to the second manifold and being formed to define multiple channels by which the respective interiors of the first and the second manifolds fluidly communicate; a fin structure, including at least 3003 alloy material, disposed in thermal communication with the tube, the fin structure being cladded with a silicon rich layer, including a 4000 series aluminum; and a flux material applied to surfaces of the first and second manifolds, the tube and the fin structure.
  • a micro channel heat exchanger alloy system includes first and second manifolds, including a 3000 series aluminum, each of the first and second manifolds being formed to define a respective interior therein; a plurality of non-circular tubes, each of the non-circular tubes including at least one of 31108 and 31104 alloy material, and each of the non-circular tubes extending from the first to the second manifold and being formed to define multiple channels by which the respective interiors of the first and the second manifolds fluidly communicate; fin structures, including at least 3003 alloy material, disposed in thermal communication with each of the non-circular tubes, each of the fin structures being cladded with a silicon rich layer, including a 4000 series aluminum; and a flux material applied to surfaces of the first and second manifolds, each of the non-circular tubes, and each of the fin structures.
  • a micro channel heat exchanger alloy system includes first and second manifolds, including a 3003 series aluminum, each of the first and second manifolds being formed to define a respective interior therein; a plurality of non-circular tubes, each of the non-circular tubes including at least one of 31108 and 31104 alloy material, and each of the non-circular tubes extending from the first to the second manifold and being formed to define multiple channels by which the respective interiors of the first and the second manifolds fluidly communicate; fin structures, including at least 3003 alloy material, disposed in thermal communication with each of the non-circular tubes, each of the fin structures being cladded with a silicon rich layer, including a 4043 series aluminum; and a lithium modified flux material applied to surfaces of the first and second manifolds, each of the non-circular tubes and each of the fin structures.
  • FIG. 1 is a side view of a micro channel heat exchanger (MCHX);
  • FIG. 2 is a perspective view of a tube of the MCHX of FIG. 1 ;
  • FIG. 3 is a perspective view of a fin structure of the MCHX of FIG. 1 ;
  • FIG. 4 is a perspective view of a manifold of the MCHX of FIG. 1 .
  • This invention involves aluminum micro channel heat exchanger (MCHX) alloy systems including multi-channel (or multi-port) extruded tubes, with or without sacrificial anodic surface treatments, such as zinc, fin alloys cladded with a silicon rich lower melting point layer, a manifold (or header) alloy and a brazing flux.
  • MCHX micro channel heat exchanger
  • a micro channel heat exchanger alloy system 10 includes first and second manifolds 20 and 30 , a tube 40 , a fin structure 50 and a flux material 60 .
  • the first and second manifolds 20 and 30 are volumetric features formed to define respective interiors 21 and 31 therein, as shown in FIG. 4 , and are formed of a 3000 series aluminum, which is an aluminum alloy that normally includes about 1.0-1.5 weight per cent (wt %) manganese as well as magnesium.
  • the 3000 series aluminum may be 3003 aluminum, which contains 1.2 wt % manganese and 0.12 wt % copper plus minor elements like iron and silicon as contaminants.
  • the tube 40 includes at least one of 31108 alloy material (especially with lithium flux), which includes 0.21-0.25 wt % silicon, 0.12 wt % iron, 0.01 wt % copper, 0.90-1.10 wt % manganese, 0.05 wt % magnesium, 0.02 wt % chromium, 0.03 wt % zinc and 0.14-0.20 wt % titanium, 31107 alloy material and 31104 alloy material, which includes 0.10 wt % silicon, 0.01 wt % copper, 0.05 wt % magnesium, 0.05 wt % zinc, 0.12 wt % iron, 1.10 wt % manganese (or magnesium), 0.05 wt % chromium and 0.05 wt % titanium, and extends from the first manifold 20 to the second manifold 30 .
  • 31108 alloy material especially with lithium flux
  • the tube 40 is formed to define multiple channels 41 , as shown in FIG. 2 , by which the respective interiors 21 and 31 of the first and the second manifolds 20 and 30 fluidly communicate with each other.
  • the fin structure 50 includes at least one of X758, 6815 and 3003 alloy materials and is disposed in thermal communication with the tube 40 .
  • the fin structure 50 is further cladded with a silicon rich layer 51 , including a 4000 series aluminum, which is an aluminum alloy that normally includes about 4.5-6.0 wt % silicon to form a low melting point alloy for joining or casting purposes, such as 4043 aluminum (5.2 wt % silicon).
  • the flux material 60 is applied to surfaces of the first and second manifolds 20 and 30 , the tube 40 and the fin structure 50 and may include lithium modified flux material.
  • the tube 40 may be plural in number with each of the plural tubes 40 extending from the first manifold 20 to the second manifold 30 .
  • Each of the plural tubes 40 is also formed to define multiple channels 41 .
  • the tube 40 may have a non-circular cross-section, such as an elongate cross-section, with the multiple channels 41 being arrayed along the non-circular cross-section.
  • the multiple channels 41 would be arrayed along the elongations of the tube 40 .
  • the fin structure 50 may also be plural in number with each of the plural fin structures disposed in thermal communication with the tube(s) 40 .
  • the fin structures 50 may include louvers 52 arranged along a longitudinal length of the tube(s) 40 to increase fin structure surface area and, therefore, heat transfer.
  • At least one or more of the first and second manifolds 20 and 30 , the tube 40 and the fin structure(s) 50 may each further include a sacrificial anodic surface treatment 70 , which may include zinc.
  • the first and second manifolds 20 and 30 may include titanium.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US14/352,510 2011-10-18 2012-10-16 Micro channel heat exchanger alloy system Abandoned US20140262182A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/352,510 US20140262182A1 (en) 2011-10-18 2012-10-16 Micro channel heat exchanger alloy system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161548553P 2011-10-18 2011-10-18
PCT/US2012/060419 WO2013059193A1 (en) 2011-10-18 2012-10-16 Micro channel heat exchanger alloy system
US14/352,510 US20140262182A1 (en) 2011-10-18 2012-10-16 Micro channel heat exchanger alloy system

Publications (1)

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US20140262182A1 true US20140262182A1 (en) 2014-09-18

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US14/352,510 Abandoned US20140262182A1 (en) 2011-10-18 2012-10-16 Micro channel heat exchanger alloy system

Country Status (4)

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US (1) US20140262182A1 (zh)
EP (1) EP2769162A1 (zh)
CN (2) CN108917449A (zh)
WO (1) WO2013059193A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR201720153T4 (tr) * 2013-09-30 2018-01-22 Arcelik As Zorlanmış taşınımlı ısı değiştirici içeren bir soğutucu cihaz.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5967228A (en) * 1997-06-05 1999-10-19 American Standard Inc. Heat exchanger having microchannel tubing and spine fin heat transfer surface
US20030165397A1 (en) * 2000-05-22 2003-09-04 Lars Auran Corrosion resistant aluminum alloy
US20090084131A1 (en) * 2007-10-01 2009-04-02 Nordyne Inc. Air Conditioning Units with Modular Heat Exchangers, Inventories, Buildings, and Methods
US20090294111A1 (en) * 2008-05-28 2009-12-03 Steve Larouche Heat exchanger
US20100186935A1 (en) * 2009-01-25 2010-07-29 Alcoil, Inc. Heat exchanger
US20100266871A1 (en) * 2009-04-21 2010-10-21 Hiroki Matsuo Aluminum alloy clad sheet for heat exchangers
US20110014494A1 (en) * 2008-02-12 2011-01-20 Katsushi Matsumoto Multi-layered sheet of aluminum alloys
US20110220617A1 (en) * 2008-11-25 2011-09-15 Solvay Fluor Gmbh Anticorrosive flux

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3370531B2 (ja) * 1996-11-22 2003-01-27 カルソニックカンセイ株式会社 アルミニウム合金製伝熱管内面の防食処理方法
US20060102696A1 (en) * 2001-11-21 2006-05-18 Graham Michael E Layered products for fluxless brazing of substrates
JP4413526B2 (ja) * 2003-05-06 2010-02-10 三菱アルミニウム株式会社 熱交換器用チューブ
US8640766B2 (en) * 2003-05-06 2014-02-04 Mitsubishi Aluminum Co., Ltd. Heat exchanger tube
JP2009046704A (ja) * 2007-08-14 2009-03-05 Mitsubishi Alum Co Ltd 耐食性に優れた熱交換器用押出扁平多穴管及び熱交換器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5967228A (en) * 1997-06-05 1999-10-19 American Standard Inc. Heat exchanger having microchannel tubing and spine fin heat transfer surface
US20030165397A1 (en) * 2000-05-22 2003-09-04 Lars Auran Corrosion resistant aluminum alloy
US20090084131A1 (en) * 2007-10-01 2009-04-02 Nordyne Inc. Air Conditioning Units with Modular Heat Exchangers, Inventories, Buildings, and Methods
US20110014494A1 (en) * 2008-02-12 2011-01-20 Katsushi Matsumoto Multi-layered sheet of aluminum alloys
US20090294111A1 (en) * 2008-05-28 2009-12-03 Steve Larouche Heat exchanger
US20110220617A1 (en) * 2008-11-25 2011-09-15 Solvay Fluor Gmbh Anticorrosive flux
US20100186935A1 (en) * 2009-01-25 2010-07-29 Alcoil, Inc. Heat exchanger
US20100266871A1 (en) * 2009-04-21 2010-10-21 Hiroki Matsuo Aluminum alloy clad sheet for heat exchangers

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Publication number Publication date
EP2769162A1 (en) 2014-08-27
WO2013059193A1 (en) 2013-04-25
CN108917449A (zh) 2018-11-30
CN103857973A (zh) 2014-06-11

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AS Assignment

Owner name: CARRIER CORPORATION, CONNECTICUT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GAROSSHEN, THOMAS J.;LOMBARDO, MARY TERESA;SIGNING DATES FROM 20111118 TO 20111205;REEL/FRAME:032700/0684

STCB Information on status: application discontinuation

Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION