EP4184107A1 - Wärmetauscher mit wärmeschrumpfanordnung - Google Patents

Wärmetauscher mit wärmeschrumpfanordnung Download PDF

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Publication number
EP4184107A1
EP4184107A1 EP22209062.3A EP22209062A EP4184107A1 EP 4184107 A1 EP4184107 A1 EP 4184107A1 EP 22209062 A EP22209062 A EP 22209062A EP 4184107 A1 EP4184107 A1 EP 4184107A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
fluid
recited
assembly
members
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.)
Pending
Application number
EP22209062.3A
Other languages
English (en)
French (fr)
Inventor
Jason Ryon
Raffi O. MANGOYAN
David Saltzman
Michael Doe
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.)
Collins Engine Nozzles Inc
Original Assignee
Collins Engine Nozzles 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 Collins Engine Nozzles Inc filed Critical Collins Engine Nozzles Inc
Publication of EP4184107A1 publication Critical patent/EP4184107A1/de
Pending 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/103—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • 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
    • F28D9/0012—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 apparatus having an annular form
    • 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
    • F28F1/14—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 and extending longitudinally
    • F28F1/22—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 and extending longitudinally the means having portions engaging further tubular elements
    • 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
    • F28F3/048—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 ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F7/00—Elements not covered by group F28F1/00, F28F3/00 or F28F5/00
    • F28F7/02—Blocks traversed by passages for 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0021—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for aircrafts or cosmonautics
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0026—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for combustion engines, e.g. for gas turbines or for Stirling engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/127—Fastening; Joining by methods involving deformation of the elements by shrinking

Definitions

  • the present disclosure relates to heat exchangers, and more particularly to heat exchangers for aerospace applications and the like.
  • Heat exchangers are costly to assembly because the fluids cannot cross-leak. Any manufacturing defect can present problems with cross-leaking, so assemblies must be carefully checked over before use.
  • the conventional techniques have been considered satisfactory for their intended purpose.
  • This disclosure provides a solution for this need.
  • a heat exchanger assembly includes a first member defining fluid passages therein for a first heat exchanger fluid.
  • a second member defines fluid passages therein for a second heat exchanger fluid. The second member is engaged to the first member with an interference fit.
  • the fluid passages of first member can be sealed against the second member by the interference fit.
  • the fluid passages of the second member can be sealed against the first member by the interference fit.
  • the first and second members can be cylindrical, wherein the second member is engaged inside the first member.
  • the fluid passages of the first and second members can be helical.
  • the first member can define a first circumferential groove in an inner surface thereof at a first axial end thereof.
  • the first member can defines a second circumferential groove in an inner surface thereof at a second axial end thereof opposite the first axial end.
  • the first circumferential groove can be in fluid communication with the second circumferential groove through the fluid passages of the first member.
  • An inlet header and an outlet header can be included, wherein the inlet header is in fluid communication with the first circumferential groove to supply fluid to the fluid passages of the first member, and wherein the outlet header is in fluid communication with the second circumferential groove to provide an outlet for fluid from the fluid passages of the first member.
  • Each fluid passage of the second member can include a respective inlet at a first axial end of the second member, and a respective outlet at a second axial end of the second member opposite the first axial end of the second member.
  • the first and second members can be a first heat exchanger pair. Additional heat exchanger pairs can be nested within the first heat exchanger pair.
  • An outer cylindrical shell can be engaged to the first member with an interference fit.
  • An inner cylindrical shell can be engaged inside an innermost member of the additional heat exchanger pairs with an interference fit.
  • the additional heat exchanger pairs can be nested within the first heat exchanger pair form a circular duct housed within an outer shell.
  • the first and second members can be sealed by a weld joint, a braze joint, and/or an O-ring.
  • the fluid passages of at least one of the first and second members can be sealed by the interference fit, and at least partially by a braze joint.
  • a method of assembling a heat exchanger includes thermally resizing at least one of a first heat exchanger member and a second heat exchanger member and assembling the second heat exchanger member to the first heat exchanger member.
  • the method includes thermally equalizing the first and second heat exchanger members to engage the second heat exchanger member to the first heat exchanger member with an interference fit.
  • Thermally resizing can include heating the first heat exchanger member. Thermally resizing can include cooling the second heat exchanger member.
  • the first heat exchanger member can be cylindrical
  • the second heat exchanger member can be cylindrical
  • assembling the second heat exchanger member to the first heat exchanger member can include placing the second heat exchanger member within the first heat exchanger member.
  • FIG. 1 a partial view of an embodiment of a heat exchanger assembly in accordance with the disclosure is shown in Fig. 1 and is designated generally by reference character 100.
  • FIGs. 2-5 Other embodiments of systems in accordance with the disclosure, or aspects thereof, are provided in Figs. 2-5 , as will be described.
  • the systems and methods described herein can be used to facilitate assembly and quality control of heat exchanger assemblies using thermal resizing and interference fits.
  • the heat exchanger assembly 100 includes a first member 102 defining fluid passages 104 therein for a first heat exchanger fluid, e.g. a colder fluid in heat exchange.
  • a second member 106 defines fluid passages 108 therein for a second heat exchanger fluid, e.g. a hotter fluid in heat exchange.
  • the first and second members 102, 106 are cylindrical, and as will be discussed further below, the second member 106 engages inside the first member 102.
  • the fluid passages 104, 108 are helical, and are defined on radially inward facing surfaces of the members 102, 106.
  • the first member 102 defines a first circumferential groove 110 in an inner surface thereof at a first axial end thereof relative to axis A.
  • the first member 102 also defines a second circumferential groove 112 in the inner surface thereof at a second axial end thereof opposite the first axial end.
  • the first circumferential groove 110 is in fluid communication with the second circumferential groove 112 through the fluid passages 104 of the first member 102.
  • Each fluid passage of the second member 106 includes a respective inlet 114 at a first axial end of the second member 106, and a respective outlet 116 at a second axial end of the second member 106 opposite the first axial end of the second member, relative to axis A.
  • a method of assembling a heat exchanger includes thermally resizing at least one of the first heat exchanger member 102 and the second heat exchanger member 106 at stage 1 of Fig. 2 .
  • Thermally resizing includes heating the first heat exchanger member 102 to thermally expand it, and/or cooling the second heat exchanger member 106 to thermally contract it, e.g. using a cryogenic liquid bath or the like.
  • the members 102, 106 thermally resized, they can be assembled to together as indicated by stage 2 in Fig. 2 , until the second member 106 is fully in place as show by stage 3 in Fig. 2 .
  • the members 102, 106 can be thermally equalized to engage the second heat exchanger member 106 to the first heat exchanger member 102 with an interference fit.
  • the outer diameter of the second member 106 at a given temperature should be slightly larger than the inner diameter of the first member 102 at the given temperature to ensure the interference fit results after thermal equalization, with the second member 106 within the first member 102.
  • the result is an interference fit that seals the fluid passages 104 (labeled in Fig. 1 ) of first member 102 against the inner surface of the second member 106. If relatively cooler fluid in the first member 102 is exchanging heat with relatively warmer fluid in the second member 106, the interference fit will be enhanced by operating the heat exchanger assembly 100, as the thermal contraction/expansion caused by the fluids will tend to contract the first member 102 and expand the second member 106.
  • the first and second members 102, 106 are a first heat exchanger pair 118.
  • Additional heat exchanger pairs 120 can be nested within the first heat exchanger pair 118.
  • the additional heat exchanger pairs 120 can be constructed and assembled in the same manner as the first heat exchange pair 118.
  • Each additional pair can be assembled into the assembly using thermal resizing, e.g. wherein each member is assembled in individually, or as pairs, or as sub-assemblies of pairs.
  • An outer cylindrical shell 122 can be engaged to the first member 102 with an interference fit using thermal resizing.
  • An inner cylindrical shell 124 can similarly be engaged inside an innermost member 102, 106 of the additional heat exchanger pairs 120 with an interference fit also using thermal resizing.
  • the additional heat exchanger pairs 120 can be nested within the first heat exchanger pair 118 form an annular heat exchanger duct housed between the inner and outer shells 124, 122.
  • the second heat exchange fluid can flow through the duct as indicated by the large arrows in Fig. 3 , passing through the inlets 114, passages 108, and outlets 116 of the respective first members 106, each of which are labeled in Fig. 1 .
  • the first heat exchange fluid can flow from the channels 110, through the passages 104, into the channels 112 of each of the respective first members 102, each of which is labeled in Fig. 1 .
  • Fluid can be supplied to the channels 112 by an inlet header 126, which connects into each of the inlet channels 110 labeled in Fig. 1 . Fluid can egress from the outlet channels 112 labeled in Fig. 1 through an outlet header 128. While schematically shown external to the assembled members 102, 106, the headers 126, 128 could also be made internal, e.g. with bores and/or piping to connect the channels respective 110, 112.
  • the fluid passages 104, 108 can be formed on the radially outward surfaces. In this case, the fluid passages of the second member 106 sealed against the first member by the interference fit.
  • the additional heat exchanger pairs 120 can be nested within the first heat exchanger pair 118 form a full circular duct housed within an outer shell 122.
  • the scope of this disclosure provides for any suitable shape of heat exchanger assembly wherein the interference fit can be maintained in the assembly.
  • the ends of the members 102, 106 can be welded, brazed e.g., having a braze ring in place first, and/or an O-ring can be put in a groove so that the first fluid doesn't leak out the ends into the second fluid.
  • One such O-ring groove 103 is shown and labeled in Fig. 4 , with an O-ring 105, understanding that a braze ring would also look similar before braze operation where it then fills the joints between member 102, 106.
  • Any or all of the interfaces between the two members 102, 106 can be sealed in a similar manner, and it is also contemplated that the ends of members 102, 106 can be welded together outside faces, e.g.
  • braze e.g., paste or plating
  • Systems and methods as disclosed herein provide potential benefits including providing lower cost heat exchangers than using traditional techniques. Systems and methods as disclosed herein provide the potential for reduction/elimination of chance of cross-leaks in heat exchangers. Additionally, sub-component testing can be used to reduce risk cross-leaks in final assemblies.
EP22209062.3A 2021-11-23 2022-11-23 Wärmetauscher mit wärmeschrumpfanordnung Pending EP4184107A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17/534,028 US20230160640A1 (en) 2021-11-23 2021-11-23 Heat shrink assembly heat exchangers

Publications (1)

Publication Number Publication Date
EP4184107A1 true EP4184107A1 (de) 2023-05-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22209062.3A Pending EP4184107A1 (de) 2021-11-23 2022-11-23 Wärmetauscher mit wärmeschrumpfanordnung

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EP (1) EP4184107A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240011712A1 (en) * 2022-07-07 2024-01-11 Hamilton Sundstrand Corporation Radially-flowing cross flow heat exchanger that increases primary heat transfer surface

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DE3443085A1 (de) * 1983-12-07 1985-06-13 Kühner GmbH & Cie, 7155 Oppenweiler Doppelrohr-waermetauscher
DE102009031465A1 (de) * 2009-07-01 2011-01-13 Eugen Geyer Gmbh Mehrkanalrohr sowie ein Verfahren zu seiner Herstellung
CN106574827A (zh) * 2014-06-30 2017-04-19 摩丁制造公司 热交换器及其制造方法
WO2018017003A1 (en) * 2016-07-19 2018-01-25 Volvo Construction Equipment Ab A heat exchanger and a working machine
US20200309471A1 (en) * 2019-03-28 2020-10-01 Ngk Insulators, Ltd. Flow path structure of heat exchanger, and heat exchanger
US20210278137A1 (en) * 2020-03-03 2021-09-09 Daikin Applied Americas, Inc. System and Method for Manufacturing and Operating a Coaxial Tube Heat Exchanger

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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3443085A1 (de) * 1983-12-07 1985-06-13 Kühner GmbH & Cie, 7155 Oppenweiler Doppelrohr-waermetauscher
DE102009031465A1 (de) * 2009-07-01 2011-01-13 Eugen Geyer Gmbh Mehrkanalrohr sowie ein Verfahren zu seiner Herstellung
CN106574827A (zh) * 2014-06-30 2017-04-19 摩丁制造公司 热交换器及其制造方法
WO2018017003A1 (en) * 2016-07-19 2018-01-25 Volvo Construction Equipment Ab A heat exchanger and a working machine
US20200309471A1 (en) * 2019-03-28 2020-10-01 Ngk Insulators, Ltd. Flow path structure of heat exchanger, and heat exchanger
US20210278137A1 (en) * 2020-03-03 2021-09-09 Daikin Applied Americas, Inc. System and Method for Manufacturing and Operating a Coaxial Tube Heat Exchanger

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