WO2014137217A1 - Conception d'entrée et de sortie d'échangeur de chaleur - Google Patents

Conception d'entrée et de sortie d'échangeur de chaleur Download PDF

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Publication number
WO2014137217A1
WO2014137217A1 PCT/NO2014/000007 NO2014000007W WO2014137217A1 WO 2014137217 A1 WO2014137217 A1 WO 2014137217A1 NO 2014000007 W NO2014000007 W NO 2014000007W WO 2014137217 A1 WO2014137217 A1 WO 2014137217A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
mpe
inlet
outlet
heat
Prior art date
Application number
PCT/NO2014/000007
Other languages
English (en)
Inventor
Ole Ploug
Original Assignee
Norsk Hydro Asa
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 Norsk Hydro Asa filed Critical Norsk Hydro Asa
Publication of WO2014137217A1 publication Critical patent/WO2014137217A1/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
    • 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
    • F28F1/128—Fins with openings, e.g. louvered fins
    • 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
    • F28D1/047—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 bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F28D1/0478—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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
    • 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
    • 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
    • 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
    • F28F2009/0285—Other particular headers or end plates
    • F28F2009/0297—Side headers, e.g. for radiators having conduits laterally connected to common header

Definitions

  • the present invention relates to the design of the inlet and outlet of heat exchangers for heat exchange or heat recovery in solutions such as refrigeration or heat pump systems, in particular a condenser or evaporator in such systems.
  • Micro channel or micro port heat exchangers based on multiport extruded profiles (MPE) of aluminium are known where the inlets and outlets of the heat exchangers are provided with headers or manifolds to distribute, respectively collect the refrigerant flowing through the multiport extrusions.
  • MPE multiport extruded profiles
  • Heat exchangers of such type are for instance known from JP laid open publication No. 3-13794.
  • a problem with these known heat exchangers is the two headers, which in a typical micro channel parallel flow condenser may include up to 60% of the total internal heat exchanger volume.
  • the traditional header design is based on an internal diameter of the header that has to be larger than the width of the MPE profile. This causes the relative large header diameter and the following fairly large internal volume.
  • the large internal header volume is causing problems with distribution of the refrigerant in evaporator modeand is adding internal volume which increases the mass of the refrigerant charge.
  • Micro channel type heat exchanger is not used as evaporator in split unit applications and other high capacity applications because of the header distribution problem.
  • the internal heat exchanger volume is considerably reduced •
  • the heat exchanger depth is not limited by the conventional MPE heat exchanger manifold tube diameter.
  • the invention is characterized by the features as defined in the attached independent claiml .
  • Fig. 1 shows in perspective view part of a commonly known MPE based heat exchanger with the fin assembly and manifold partly cut through (partly cross section view),
  • Fig. 2 shows a perspective view apart part of a heat exchanger according to the present invention
  • Fig. 3 shows an example of a part of a MPE section with internal flow arrangement according to the present invention
  • Fig. 4 shows an expanded view of an assembly of a part of a web-MPE based collector for a heat exchanger according to the invention
  • Fig. 5 shows an example of heat exchanger arrangement according to the invention
  • Fig. 1 shows as an example and in perspective view part of a commonly known MPE based heat exchanger 1 with a serpentine fin 5 assembly. Only one manifold 2 is shown in the figure, but as can be seen the manifold is basically cylindrical and is provided with slits or openings 3 for the MPE profiles 4.
  • a problem with these known heat exchangers is the two manifolds 2, which in a typical micro channel parallel flow condenser of the type shown in Fig. 1 may include up to 60% of the total internal heat exchanger volume.
  • the traditional header or manifold design is based on an internal diameter of the header that has to be larger than the width of the MPE profile 4. This causes the relative large manifold diameter and the following fairly large internal volume. The large internal header volume is causing problems with distribution of the refrigerant in evaporator mode.
  • Fig. 2 shows part of heat exchanger 6 with an inlet and outlet design according to the invention.
  • the inventive heat exchanger 6 may be composed of one or more-multi channel or multi-port extruded profiles (MPE) 7, 8 formed as individual serpentine elements where each element 7, 8 is provided with inlet 9 and outlet tubes 10 which in turn are connected to the outlet pipe or collector 1 , respectively an inlet pipe or distributor 12.
  • Fig. 2 shows a web type of extruded multiport extrusion, web-MPE, but any MPE design may be used.
  • the figure also indicates a solution with fins 13. However, the invention may also be used without fins.
  • the heat exchanger depth is not limited by the classic MPE heat exchanger manifold tube diameter (width),
  • multi slab design can be built as one unit. (If the MPE shown in fig.3 is separated from a heat conductance point of view in the centerline of the MPE profile 14; the design will have the characteristics of a two slab heat exchanger).. there is reduced number of parallel flow tubes by serpentine arrangement
  • Fig. 3 shows an example of a part of a MPE section with internal flow arrangement according to the present invention.
  • the flow of fluid may be provided as a longitudinal counter flow arrangement in the one and same element, where the fluid enters the MPE element 14 through a connecting tube 19 inlet end 15 from a refrigerant distributor (not shown) and is returned in a counter flow by a connecting tube 18 provided at the other end of the MPE element.
  • the fluid is escaped from the element through the outlet end 16 of the connecting tube 19 and into the collector 17.
  • the split counter flow is obtained by the baffle 20 provided in the end tube 19.
  • Fig. 4 shows an expanded view of an assembly of a part of a web-MPE based collector for a heat exchanger according to the invention.
  • This design represents an embodiment of the design shown in Fig. 3 where the upper and lower connecting tubes 18, 19, instead of being individual pipes, form part of a multiport extrusion 21.
  • the ends of the upper tube 18 closed by means of end caps 22 and the flow in the tubes 18, 19 is, as also shown in Fig. 3, split by other baffle 20..
  • Fig. 5 shows, more or less (all fins and MPEs are not fully shown or drawn) a complete heat exchanger including the elements and components as shown in Figs. 2 - 3 and described above, and including an inlet distributor 12 and outlet collector or pipe 17.
  • the inventive heat exchanger is a compact solution which is simple and cheap to manufacture.
  • the heat exchanger can be used, not only as condenser or evaporator in a refrigeration system, but in any system where heat is exchanged or recovered by means of air or other fluid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

La présente invention concerne la conception améliorée de l'entrée et de la sortie d'échangeurs de chaleur destinés à l'échange de chaleur ou à la récupération de chaleur dans des solutions telles que des systèmes de pompe à chaleur ou de réfrigération, en particulier un condenseur ou un évaporateur dans de tels systèmes, où l'échangeur de chaleur comprend des profils extrudés à orifices multiples ou à canal unique ou canaux multiples, MPE, (7, 8) ayant la forme d'éléments en serpentin individuels. Chaque élément (7, 8) est doté de tubes d'entrée (9, 18) et de tubes de sortie (10, 19) qui sont quant à eux raccordés au collecteur ou tuyau de sortie (11), respectivement un ou tuyau d'entrée ou distributeur (12).
PCT/NO2014/000007 2013-03-04 2014-01-30 Conception d'entrée et de sortie d'échangeur de chaleur WO2014137217A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20130320 2013-03-04
NO20130320 2013-03-04

Publications (1)

Publication Number Publication Date
WO2014137217A1 true WO2014137217A1 (fr) 2014-09-12

Family

ID=51491644

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2014/000007 WO2014137217A1 (fr) 2013-03-04 2014-01-30 Conception d'entrée et de sortie d'échangeur de chaleur

Country Status (1)

Country Link
WO (1) WO2014137217A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016083457A1 (fr) * 2014-11-25 2016-06-02 Sapa As Conception de tube formé par extrusion à orifices multiples
CN107076483A (zh) * 2014-10-29 2017-08-18 Bsh家用电器有限公司 具有热交换元件的制冷器具
CN107532839A (zh) * 2015-04-28 2018-01-02 Bsh家用电器有限公司 具有热交换器的制冷器具
WO2020152168A1 (fr) 2019-01-22 2020-07-30 Hydro Extruded Solutions As Extrusion à orifices multiples de type en bande (web-mpe)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104094A (ja) * 1982-12-07 1984-06-15 Showa Alum Corp 熱交換器
US5036909A (en) * 1989-06-22 1991-08-06 General Motors Corporation Multiple serpentine tube heat exchanger
JPH0468297A (ja) * 1990-07-09 1992-03-04 Showa Alum Corp コンデンサ
JPH0480593A (ja) * 1990-07-23 1992-03-13 Showa Alum Corp 熱交換器
US5314013A (en) * 1991-03-15 1994-05-24 Sanden Corporation Heat exchanger
EP1411310B1 (fr) * 2002-10-18 2007-12-05 Modine Manufacturing Company Echangeur de chaleur à structure en serpentin

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104094A (ja) * 1982-12-07 1984-06-15 Showa Alum Corp 熱交換器
US5036909A (en) * 1989-06-22 1991-08-06 General Motors Corporation Multiple serpentine tube heat exchanger
JPH0468297A (ja) * 1990-07-09 1992-03-04 Showa Alum Corp コンデンサ
JPH0480593A (ja) * 1990-07-23 1992-03-13 Showa Alum Corp 熱交換器
US5314013A (en) * 1991-03-15 1994-05-24 Sanden Corporation Heat exchanger
EP1411310B1 (fr) * 2002-10-18 2007-12-05 Modine Manufacturing Company Echangeur de chaleur à structure en serpentin

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107076483A (zh) * 2014-10-29 2017-08-18 Bsh家用电器有限公司 具有热交换元件的制冷器具
US20170307265A1 (en) * 2014-10-29 2017-10-26 Bsh Hausgeraete Gmbh Refrigeration appliance with a heat exchanging element
CN107076483B (zh) * 2014-10-29 2021-03-30 Bsh家用电器有限公司 制冷器具
WO2016083457A1 (fr) * 2014-11-25 2016-06-02 Sapa As Conception de tube formé par extrusion à orifices multiples
US10317141B2 (en) 2014-11-25 2019-06-11 Hydro Extruded Solutions As Multi port extrusion tubing design
CN107532839A (zh) * 2015-04-28 2018-01-02 Bsh家用电器有限公司 具有热交换器的制冷器具
WO2020152168A1 (fr) 2019-01-22 2020-07-30 Hydro Extruded Solutions As Extrusion à orifices multiples de type en bande (web-mpe)

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