EP3633308A1 - Collecteur de tube d'échangeur de chaleur avec colliers externes - Google Patents

Collecteur de tube d'échangeur de chaleur avec colliers externes Download PDF

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Publication number
EP3633308A1
EP3633308A1 EP18198864.3A EP18198864A EP3633308A1 EP 3633308 A1 EP3633308 A1 EP 3633308A1 EP 18198864 A EP18198864 A EP 18198864A EP 3633308 A1 EP3633308 A1 EP 3633308A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
exchanger tube
manifold
external
tube manifold
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Withdrawn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
EP18198864.3A
Other languages
German (de)
English (en)
Inventor
Mohamed Asri
Kamel Azzouz
Adil AYAD
Benjamin Ferlay
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.)
Valeo Klimasysteme GmbH
Original Assignee
Valeo Klimasysteme 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 Valeo Klimasysteme GmbH filed Critical Valeo Klimasysteme GmbH
Priority to EP18198864.3A priority Critical patent/EP3633308A1/fr
Publication of EP3633308A1 publication Critical patent/EP3633308A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
    • 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
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • 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
    • F28F2275/08—Fastening; Joining by clamping or clipping
    • F28F2275/085—Fastening; Joining by clamping or clipping with snap connection
    • 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
    • F28F2275/20—Fastening; Joining with threaded 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
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/04—Means for preventing wrong assembling of parts

Definitions

  • the present disclosure relates to a heat exchanger system, particularly, the present disclosure relates to a heat exchanger tube manifold for a heat exchanger system.
  • Conventional heat exchanger such as for example, a condenser includes a pair of heat exchanger tube manifolds and a plurality of heat exchanger tubes connecting and configuring fluid communication between the heat exchanger tube manifolds.
  • Each of the heat exchanger tube manifolds includes a tank and a header that are crimped to each other to configure a secure connection there-between.
  • the header includes a plurality of apertures that receives heat exchanger tubes. In case insertion of the heat exchanger tubes and tube positioning inside the manifold is not controlled, the position of the ends of the heat exchanger tubes inside the manifold is non-uniform, i.e.
  • the ends of the heat exchanger tubes are not at same level, causing non-uniform, in-homogeneous distribution of the heat exchanger fluid in the heat exchanger tubes and also causing increase in internal pressure drop that in turn prevents the heat exchanger tubes from retaining the heat exchanger fluid for longer duration.
  • the non-uniform, in-homogeneous distribution of the heat exchanger fluid in the heat exchanger tubes and the increase in internal pressure drop in the heat exchanger system cause adverse impact on the thermal performance and the efficiency of the heat exchanger.
  • the heat exchanger tubes between the heat exchanger tube manifold and the starting of the fins is prone to corrosion, thereby adversely impacting the service life and performance of the heat exchanger.
  • the shoulder fails to control outward movement of the heat exchanger tubes from the heat exchanger tube manifold.
  • none of the prior art suggests any provision for protecting portion of the heat exchanger tubes between the heat exchanger tube manifold and the starting of the fins against corrosion, while simultaneously controlling heat exchanger tube insertion and heat exchanger tube positioning inside the heat exchanger tube manifold.
  • a heat exchanger tube manifold that include means for protecting portion of the heat exchanger tubes between the heat exchanger tube manifold and the starting of the fins against corrosion, while simultaneously controlling tube insertion and tube positioning inside the heat exchanger tube manifold. Further, there is a need for a heat exchanger tube manifold that ensures uniform and homogeneous distribution of heat exchange fluid in all the heat exchanger tubes. Furthermore, there is a need for a heat exchanger tube manifold that is capable of enhancing thermal performance and efficiency of the heat exchanger.
  • An object of the present invention is to provide a heat exchanger tube manifold that obviates problems faced in conventional heat exchanger tube manifold arising due to uncontrolled and non-uniform tube insertion and tube positioning therein.
  • Another object of the present invention is to provide a heat exchanger tube manifold that is capable of controlling tube insertion and tube positioning within the heat exchanger manifold, while simultaneously protecting portion of the heat exchanger tubes between the heat exchanger tube manifold and start of the fins against corrosion.
  • An object of the present invention is to provide a heat exchanger tube manifold that provides an additional mechanical resistance to heat exchange tubes in area between a heat exchanger tube manifold and fins against high mechanical and thermo-mechanical stresses caused by e.g. pressure cycling and thermal cycling.
  • Yet another object of the present invention is to provide a heat exchanger tube manifold that ensures uniform and homogeneous distribution of the heat exchange fluid in all the heat exchanger tubes and prevents pressure drop.
  • Still another object of the present invention is to provide a heat exchanger tube manifold that is capable of enhancing thermal performance and efficiency of the heat exchanger and also enhances service life and reduces maintenance of the heat exchanger.
  • some elements or parameters may be indexed, such as a first element and a second element.
  • this indexation is only meant to differentiate and name elements which are similar but not identical. No idea of priority should be inferred from such indexation, as these terms may be switched without betraying the invention. Additionally, this indexation does not imply any order in mounting or use of the elements of the invention.
  • a heat exchanger tube manifold is disclosed in accordance with an embodiment of the present invention.
  • the heat exchanger tube manifold includes a plurality of spaced apart external collars, wherein at least part of the external collars receives and covers a predetermined length "L" of at least one heat exchanger tube.
  • At least one of external collars and corresponding portions of the heat exchanger tube manifold adjacent to the external collars include at least one mechanical stopper, wherein the mechanical stopper prevents receiving the at least one heat exchanger tube beyond the predetermined length "L" inside the at least one of the external collar and the heat exchanger tube manifold.
  • each of the external collars is integrally formed with the heat exchanger tube manifold by a single step molding process.
  • each of the external collars is detachably mounted with respect to the heat exchanger tube manifold.
  • the at least one mechanical stopper is an inwardly protruding member configured on interior walls of at least one of the external collar and the heat exchanger tube manifold.
  • the at least one mechanical stopper is a snap fit arrangement configured between an external surface of the at least one heat exchanger tube and the interior walls of at least one of the external collar and the heat exchanger tube manifold.
  • the snap fit arrangement includes a first snap fit engagement element configured on interior walls of at least one of the external collar and the heat exchanger tube manifold that configures snap fit engagement with at least one corresponding, complimentary second snap fit engagement element configured on the external surface of the at least one heat exchanger tube.
  • the at least one mechanical stopper is a threaded fastening arrangement between at least a portion of an external surface of the at least one heat exchanger tube having circular section and at least a portion of the interior walls of at least one of the external collar and the heat exchanger tube manifold.
  • the threaded fastening arrangement includes first threading configured on at least a portion of the exterior walls of the at least one heat exchanger tube that is complimentary to and engages with second threading configured on at least a portion of interior walls of at least one of the external collar and the heat exchanger tube manifold, in an engaged configuration of the at least one heat exchanger tube with respect to the external collar and the heat exchanger tube manifold, the external collar covers and permits receiving the predetermined length "L" of the at least one heat exchanger tube inside at least one of the external collar and the heat exchanger tube manifold.
  • the at least one mechanical stopper is a ball and socket arrangement that configures engagement between the external surface of the at least one heat exchanger tube and interior walls of at least one of the external collar and the heat exchanger tube manifold.
  • the ball and socket arrangement includes at least one spring loaded ball configured on interior walls of the at least one of the external collar and the heat exchanger tube manifold that is received in a corresponding socket configured on the external surface of the at least one heat exchanger tube.
  • the ball and socket arrangement includes at least one spring loaded ball configured on the external surface of the at least one heat exchanger tube that is received in a corresponding socket configured on interior walls of at least one of the external collar and the heat exchanger tube manifold.
  • the heat exchanger includes a pair of spaced apart heat exchanger tube manifolds, wherein at least one heat exchanger tube manifold of the pair of heat exchanger tube manifolds is as disclosed above.
  • the heat exchanger further includes a plurality of heat exchanger tubes that connect the heat exchanger tube manifolds.
  • the heat exchanger further includes a plurality of fins that start from a portion spaced away from at least one of the heat exchanger tube manifolds and extend along at least a portion of the length of the heat exchanger tubes, wherein each of the external collars extends from at least one of the heat exchanger tube manifolds till start of the fins configured adjacent the heat exchanger tubes.
  • a heat exchanger tube manifold with spaced apart external collars receiving a pre-determined length of heat exchange tubes therein for controlling heat exchanger tube insertion and heat exchanger tube positioning inside the heat exchanger tube manifold and also simultaneously protecting portion of the heat exchanger tubes between the heat exchanger tube manifold and starting of the fins lodged between adjacent heat exchanger tubes against corrosion.
  • the heat exchanger tube manifold of the present invention is used in heat exchangers, such as radiators, condensers and evaporators used in vehicles, however, the heat exchanger tube manifold of the present invention is also applicable to any other heat exchangers such as for example, radiators used in non-vehicular systems such as generators.
  • FIGURE 1 of the accompanying drawings a schematic representation of a heat exchanger 100 in accordance with an embodiment of the present invention is depicted.
  • the heat exchanger 100 includes a pair of the heat exchanger tube manifolds 10a and 10b, a plurality of spaced apart external collars 12 configured on at least one of the heat exchanger tube manifolds 10a and 10b , a plurality of heat exchanger tubes 20 and a plurality of fins 30 (illustrated in enlarged view in FIGURE 1 ). Also, is illustrated an enlarged view of the heat exchanger tube manifold 10a with the plurality of spaced apart external collars 12 receiving the heat exchange tubes 20 therein in accordance with an embodiment of the present invention.
  • the heat exchanger tubes 20 facilitate connection and fluid communication between the heat exchanger tube manifolds 10a and 10b .
  • the fins 30 lodged between adjacent heat exchanger tubes 20 facilitate in improving surface contact between the air and the heat exchanger tubes 20 of the heat exchanger core for improving heat exchange between air passing outside the heat exchanger tubes 20 and the and heat exchange fluid flowing inside the heat exchanger tubes 20 .
  • the external collars 12 can be configured on at least one of the exchanger tube manifolds 10a and 10b that are commonly identical and disposed at opposite sides of the heat exchanger core, as such every embodiment disclosed henceforth for the heat exchanger tube manifold 10a and the external collars 12 configured thereon may also be applicable for the heat exchanger tube manifold 10b and the external collars 12 configured thereon.
  • enlarged view depicting the details of only the of the exchanger tube manifolds 10a and the external collars 12 configured thereon is illustrated in the Figures and described in the description.
  • Each of the external collars 12 is integrally formed with the heat exchanger tube manifold 10a by a single step molding process. Alternatively, each of the external collars 12 is detachably mounted with respect to the heat exchanger tube manifold 10a. At least one of the external collars 12 and the heat exchanger tube manifold 10a receives and covers a pre-determined length "L" of at least one heat exchanger tube 20 as illustrated in FIGURE 2b.
  • FIGURE 2a illustrates an isometric view of the heat exchanger tube manifold 10a without the heat exchanger tubes 20 received in the external collars 12.
  • FIGURE 2b illustrates another isometric view of the heat exchanger tube manifold 10a with the heat exchanger tubes 20 received in the respective external collars 12 .
  • the external collars 12 are of the same material as that of the heat exchanger tube manifold 10a.
  • the present invention is not limited to any particular configuration, material of the external collars 12 and the manner in which the external collars 12 are configured on the heat exchanger manifold 10a , as far as each of the external collars 12 is extending from the heat exchanger tube manifold 10a and at least one of the external collars 12 in conjunction with the heat exchanger tube manifold 10a adjacent thereto receives and covers a pre-determined length "L" of the at least one heat exchanger tube 20 .
  • At least one of the external collars 12 and corresponding portions of the heat exchanger tube manifold 10a adjacent to the external collars 12 include at least one mechanical stopper 14 , wherein the at least one mechanical stopper 14 prevents receiving the at least one heat exchanger tube 20 beyond the predetermined length "L" inside the at least one of the external collar 12 and the heat exchanger tube manifold 10a.
  • FIGURE 3 illustrates still another isometric view of the heat exchanger tube manifold 10a depicting the mechanical stoppers 14 interacting with and preventing further insertion of the heat exchanger tubes 20 inside the heat exchanger tube manifold 10a.
  • Such a configuration of the heat exchanger manifold 10a facilitates in controlling tube insertion and tube positioning within the heat exchanger manifold 10a , thereby resulting in improved flow distribution of the heat exchanger fluid and uniform distribution of the heat exchanger fluid in all the heat exchanger tubes 20 . Also, such configuration prevents further pressure drop across the heat exchanger tubes and improves thermal performance and efficiency of the heat exchanger 100 .
  • the fins 30 starts from a portion spaced away from the heat exchanger tube manifold 10a and extend along at least a portion of the length of the heat exchanger tubes 20 . Such configuration protects portion of the heat exchanger tubes 20 between the heat exchanger tube manifold 10a and the starting of the fins 30 against corrosion, while simultaneously controlling heat exchanger tube insertion and heat exchanger tube positioning inside the heat exchanger tube manifold 10a .
  • the mechanical stoppers 14 are uniformly configured on at least one of the external collars 12 and the corresponding portion of the heat exchanger tube manifold 10a adjacent to the external collars 12 such that all the mechanical stoppers facilitate in defining same level for ends of all the heat exchanger tubes 20 relative to the at least one of the external collars 12 and the heat exchanger tube manifold 10a , thereby ensuring better flow control inside the heat exchanger tubes 20 .
  • the at least one mechanical stopper 14 is for example an inwardly protruding member configured on interior walls of at least one of the external collar 12 and the heat exchanger tube manifold 10a .
  • the mechanical stopper 14 is for example a snap fit arrangement configured between an external surface of the at least one heat exchanger tube 20 and the interior walls of at least one of the external collar 12 and the heat exchanger tube manifold 10a .
  • the snap fit arrangement includes a first snap fit engagement element configured on interior walls of the at least one of the external collar 12 and the heat exchanger tube manifold 10 that configures snap fit engagement with at least one corresponding, complimentary second snap fit engagement element configured on the external surface of the at least one heat exchanger tube 20 .
  • the at least one mechanical stopper 14 is a threaded fastening arrangement between at least a portion of an external surface of the at least one heat exchanger tube 20 , having circular section and at least a portion of the interior walls of the at least one of the external collar 12 and the heat exchanger tube manifold 10a .
  • the threaded fastening arrangement includes a first threading configured on at least a portion of the exterior walls of the at least one heat exchanger tube 20 , having circular section and that is complimentary to and engages with second threading configured on at least a portion of interior walls of at least one of the external collar 12 and the heat exchanger tube manifold 10a .
  • the first threading engages with the second threading to define an engaged configuration of the at least one heat exchanger tube 20 with respect to at least one of the external collar 12 and the heat exchanger tube manifold 10a .
  • Such threaded fastening arrangement enables the external collar 12 to permit receiving the predetermined length "L" of the at least one heat exchanger tube 20 inside at least one of the external collar 12 and the heat exchanger tube manifold 10a but also cover the predetermined length "L" of the at least one heat exchanger tube 20 .
  • the mechanical stopper 14 not only inward movement of the heat exchanger tubes 20 inside the heat exchanger tube manifold 10 is prevented but also outward movement of the heat exchanger tube 20 from the heat exchanger tube manifold 10 is also prevented.
  • the at least one mechanical stopper 14 is a ball and socket arrangement that configures engagement between the external surface of the at least one heat exchanger tube 20 and the interior walls of at least one of the external collar 12 and the heat exchanger tube manifold 10a.
  • the ball and socket arrangement includes at least one spring loaded ball configured on interior walls of at least one of the external collar 12 and the heat exchanger tube manifold 10a that is received in a corresponding socket configured on the external surface of the at least one heat exchanger tube 20 .
  • the ball and socket arrangement includes at least one spring loaded ball configured on the external surface of the at least one heat exchanger tube 20 that is received in a corresponding socket configured on interior walls of at least one of the external collar 12 and the heat exchanger tube manifold 10a.
  • the present invention is not limited to any particular configuration of the at least one mechanical stoppers 14 as far as the mechanical stoppers facilitate in defining the same level for ends of all the heat exchanger tubes 20 relative to the at least one of the external collars 12 and the heat exchanger tube manifold 10a .
  • the heat exchanger 100 includes a pair of spaced apart heat exchanger tube manifolds 10a and 10b , wherein at least one heat exchanger tube manifold of the pair of heat exchanger tube manifolds 10a and 10b is as disclosed above.
  • the heat exchanger 100 further includes a plurality of heat exchanger tubes 20 that connect the heat exchanger tube manifolds 10a and 10b .
  • the heat exchanger 100 further includes the plurality of fins 30 that start from a portion spaced away from at least one of the heat exchanger tube manifolds 10a and 10b and extend along at least a portion of the length of the heat exchanger tubes 20 , wherein each of the external collars 12 extends from at least one of the heat exchanger tube manifolds 10a and 10b till start of the fins 30 configured adjacent the heat exchanger tubes 20 .
  • heat exchanger tube manifold as defined above, as long as the heat exchanger tube manifold includes a plurality of spaced apart external collars, wherein at least part of the external collars receive and cover a predetermined length "L" of at least one heat exchanger tube.

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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)
EP18198864.3A 2018-10-05 2018-10-05 Collecteur de tube d'échangeur de chaleur avec colliers externes Withdrawn EP3633308A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18198864.3A EP3633308A1 (fr) 2018-10-05 2018-10-05 Collecteur de tube d'échangeur de chaleur avec colliers externes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18198864.3A EP3633308A1 (fr) 2018-10-05 2018-10-05 Collecteur de tube d'échangeur de chaleur avec colliers externes

Publications (1)

Publication Number Publication Date
EP3633308A1 true EP3633308A1 (fr) 2020-04-08

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EP18198864.3A Withdrawn EP3633308A1 (fr) 2018-10-05 2018-10-05 Collecteur de tube d'échangeur de chaleur avec colliers externes

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1797636A (en) * 1927-12-03 1931-03-24 Gay H Butler Pipe-coil header
US4825941A (en) 1986-07-29 1989-05-02 Showa Aluminum Kabushiki Kaisha Condenser for use in a car cooling system
US5046555A (en) 1990-09-06 1991-09-10 General Motors Corporation Extended surface tube-to-header connection for condenser
WO2010139485A2 (fr) * 2009-06-06 2010-12-09 Geoclimadesign Ag Élément tubulaire et natte de tubes capillaires composée de tels éléments
WO2015113145A1 (fr) * 2014-01-31 2015-08-06 Hydronic Heating Technologies Inc. Radiateur ayant un manifold à écoulement inverse
FR3056736A1 (fr) * 2016-09-28 2018-03-30 Valeo Systemes Thermiques Faisceau d’echange thermique pour echangeur thermique, echangeur thermique et procede d’assemblage associes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1797636A (en) * 1927-12-03 1931-03-24 Gay H Butler Pipe-coil header
US4825941A (en) 1986-07-29 1989-05-02 Showa Aluminum Kabushiki Kaisha Condenser for use in a car cooling system
US4825941B1 (en) 1986-07-29 1997-07-01 Showa Aluminum Corp Condenser for use in a car cooling system
US5046555A (en) 1990-09-06 1991-09-10 General Motors Corporation Extended surface tube-to-header connection for condenser
WO2010139485A2 (fr) * 2009-06-06 2010-12-09 Geoclimadesign Ag Élément tubulaire et natte de tubes capillaires composée de tels éléments
WO2015113145A1 (fr) * 2014-01-31 2015-08-06 Hydronic Heating Technologies Inc. Radiateur ayant un manifold à écoulement inverse
FR3056736A1 (fr) * 2016-09-28 2018-03-30 Valeo Systemes Thermiques Faisceau d’echange thermique pour echangeur thermique, echangeur thermique et procede d’assemblage associes

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