EP1957893B1 - Condenseur de fluide frigorifique pour appareil frigorifique - Google Patents

Condenseur de fluide frigorifique pour appareil frigorifique Download PDF

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Publication number
EP1957893B1
EP1957893B1 EP06807408A EP06807408A EP1957893B1 EP 1957893 B1 EP1957893 B1 EP 1957893B1 EP 06807408 A EP06807408 A EP 06807408A EP 06807408 A EP06807408 A EP 06807408A EP 1957893 B1 EP1957893 B1 EP 1957893B1
Authority
EP
European Patent Office
Prior art keywords
tube
condenser
layer
layers
pipe
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.)
Not-in-force
Application number
EP06807408A
Other languages
German (de)
English (en)
Other versions
EP1957893A1 (fr
Inventor
Thomas Kranz
Jürgen Eberle
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1957893A1 publication Critical patent/EP1957893A1/fr
Application granted granted Critical
Publication of EP1957893B1 publication Critical patent/EP1957893B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25B39/04—Condensers
    • 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
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/10—Particular layout, e.g. for uniform temperature distribution
    • 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
    • F28F2275/08—Fastening; Joining by clamping or clipping

Definitions

  • the present invention relates to a refrigerant condenser for a refrigeration device, which comprises a condenser tube bent into a tube layer comprising a plurality of tube loops, wherein the tube loops are fixed in position relative to one another by struts.
  • the present invention relates to a method for producing a condenser for a refrigeration device with a multiply bent condenser tube.
  • Such a condenser is for example from the DE 20 2004 017 652 U1 known.
  • Drahtrohrvermajer shown are the struts by wire rods, which are attached to the condenser tube by welding.
  • the wire rods serve on the one hand to stabilize the multi-curved condenser tube and on the other hand support the heat dissipation from the condenser tube to the environment.
  • a variety of wire rods are necessary.
  • the welding of the wires on the condenser tube means a large production cost.
  • a condenser in which a tube sheet having a plurality of serially connected tube loops is first formed and rectilinear sections are then bent once or twice to obtain a compact condenser having straight sections in two or three layers.
  • the object of the present invention is to provide a condenser of the type mentioned, in which the struts ensure a good heat transfer from the refrigerant to the environment, a support of the multi-fold condenser tube and the condenser is also inexpensive to manufacture.
  • the object of the present invention is also to specify a cost-effective method for producing a condenser with a multiply bent condenser tube.
  • a condenser for a refrigeration device for example, a household refrigerator or household freezer
  • the usual in the art for stabilizing the pipe layer wire rods can be omitted in favor of one or more even flowed through by refrigerant pipe sections.
  • the available heat to be available pipe length of the condenser is increased at a constant footprint.
  • the pipe layer and the struts are portions of a continuous pipe section.
  • the struts are preferably formed by pipe grinding a further pipe layer of the condenser tube.
  • the refrigerant condenser therefore comprises a further, second pipe layer which, like the former pipe layer, is formed from the multiply bent condenser pipe, wherein the pipe loops of one pipe layer serve the other pipe layer as struts.
  • the pipe layers are preferably connected to one another in the condenser according to the invention by welding, for example by spot welding.
  • welding for example by spot welding.
  • a fixing of the pipe layers is possible even without direct material connection, as it arises during welding or soldering.
  • By locking or plug-in elements it is possible to fasten the pipe layers spaced apart from each other at their intersections. Temperature-induced stresses in the pipe material due to large Temperature differences of the flowing refrigerant can be avoided.
  • the pipe layers viewed in plan view, intersect at at least one point and are fastened to one another at this intersection.
  • each pipe loop comprises two rectilinear, generally parallel sections which are interconnected by a curved section, i. the condenser tube is meandered within a pipe layer.
  • the straight sections of the two tube layers preferably cross each other at right angles.
  • Each rectilinear section should be attached to at least one point of intersection, preferably at all of its points of intersection, with a rectilinear section of the other layer of tubes thereon.
  • the first pipe layer and the second pipe layer preferably hang together by a single pipe section.
  • this one pipe section must be ge or deformed to bring both pipe layers in their predetermined position to each other.
  • condenser In the in the DE 28 43 197 A1 disclosed condenser must be bent together to form the layers of the condenser all rectilinear pipe sections, which makes the production consuming and thus can be expensive.
  • the pipe layers are integrally connected via the pipe section connecting the pipe layers. This makes it possible to form the entire condenser from a single tube by bending it. Thus, only a single type of semi-finished product is needed to produce the condenser.
  • the pipe layers preferably hang together at one corner of the condenser.
  • the condenser according to the invention may also comprise more than two pipe layers, for example three, which are shaped and connected in the same way, as explained above.
  • the present invention also encompasses a method for producing a condenser described above, for example, comprising the steps of: (a) forming a first pipe layer by bending a first condenser pipe part several times, (b) forming a second pipe layer by bending a second condenser pipe part several times, (c ) Laying the first pipe layer on the second pipe layer such that the pipe layers intersect at least one point and (d) attaching the pipe layers to each other at at least this one crossing point.
  • a condenser is obtained in which the wires commonly used for shape stabilization can be omitted.
  • the tube layers preferably hang together over a tube section which is bent when the tube layers are placed on one another in step (c).
  • this has the advantage that in the production of the condenser, only this one pipe section is deformed or deformed in order to bring both pipe layers into their predetermined position relative to one another.
  • the first pipe layer and the second pipe layer and a pipe section connecting both pipe layers are formed integrally from the condenser tube.
  • the condenser may thus be formed by molding a single tube, i. from a single part.
  • the tube layers are formed as a plurality of serially connected tube loops, each tube loop comprising two parallel, rectilinear sections interconnected by a curved section.
  • a multilayer structure of the condenser is easy to implement.
  • the tube loops of the first tube layer and the tube loops of the second tube layer are formed in one pass and in one plane.
  • the rectilinear sections of the first pipe layer are preferably formed in a length which differs from the length of the rectilinear sections of the second pipe layer. This makes it possible to adapt the condenser in its dimensions optimally to the available rear wall surface of a refrigerator.
  • the tube section connecting the first tube layer and the second tube layer is preferably initially formed with a radius of curvature which is greater than the radius of curvature of the curved sections of the tube loops.
  • a refrigerator which has a condenser as described above.
  • This is preferably a refrigerator or freezer, preferably for a private household.
  • Fig. 1 shows a perspective rear view of a household refrigerating appliance.
  • a compressor not shown, from which vaporous refrigerant is introduced into a located on the rear wall 2 of the body 1 refrigerant condenser 3 according to the invention.
  • the refrigerant via the condenser tube designated by the reference numeral 4 heat to the environment of the refrigerator and liquefies.
  • the effluent from the condenser 3, liquefied refrigerant is passed to a located in the interior of the refrigerator evaporator for cooling the interior.
  • the condenser 3 is formed from a one-piece condenser tube 4 by multiple bending, which, as in particular from Fig. 2 can be seen, extending over a first pipe layer 5 and a second pipe layer 6, which lie in two planes parallel to the rear wall of the body 1 levels.
  • the condenser tube 4 forms a plurality of pipe loops 8 and 8 'connected in series.
  • Each pipe loop 8 or 8 ' comprises two straight, mutually parallel sections 9 and 9', which are connected by a curved portion 10 and 10 'with each other.
  • the two pipe layers 5 and 6 hang together via a pipe loop 11 at a corner 12 of the condenser 3.
  • the transfer of the refrigerant from the first pipe layer 5 to the second pipe layer 6 takes place.
  • the straight sections 9 of the pipe layer 5 and the straight sections 9 'of the pipe layer 6 intersect in a plan view of the pipe layers 5 and 6 at a plurality of points 14, here at an angle of approximately 90 °.
  • the pipe sections 9, 9 ' are connected to each other by spot welding.
  • the pipe layers 5 and 6 stabilize each other.
  • Conventionally used for stabilizing a pipe layer wire struts or sheets are no longer needed, since the straight sections 9 or 9 'take one of the pipe layers 5 or 6 for the other pipe layer 6 and 5, the function of the wire struts.
  • the rear wall condenser 3 thus has a compact design with a large condenser tube length available for heat exchange.
  • FIG. 6 An example of a plug-in element 20 is shown in FIG Fig. 6 shown. It consists of a slightly elastic plastic and has a cylindrical shape with two intersecting, different depth slots 24, 25, which are provided to be plugged at a crossing point 14 and in each case a pipe section 9, 9 'of the two pipe layers fifth , 6, record. In order to anchor the pipe sections in the slots 24, 25 in a form-fitting manner, the latter each have an expansion 21 or 22 at their bottom.
  • the plug element 20 may be attached at all crossing points 14. Alternatively, it is possible to attach a small number of plug-in elements to the rear wall of the body and to attach the condenser by pushing in each case a pipe section 9, 9 'of the two layers 5, 6. In this case, the pipe sections 9, 9 'are preferably welded together at a plurality of crossing points 14, at least those which are not held in one of the plug-in elements 20.
  • backwall condenser 3 may also, but not shown, still have other pipe layers, which are shaped and connected in the same way, as in relation to the Fig. 1 and 2 is explained.
  • the back wall condenser can also have three, four or more pipe layers.
  • the Fig. 3 to 5 show a method for producing the in Fig. 1 to 2 described backwall condenser 3.
  • a one-piece tube 4 bent meandering in a plane, so that it forms a plurality of series-connected pipe loops 8 and 8 '.
  • Each pipe loop 8 or 8 ' comprises two straight, mutually parallel sections 9 and 9', which are connected by a curved portion 10 and 10 'with each other.
  • the condenser tube 4 is bent in tube loops 8 and 8 ', whose rectilinear portions 10 and 10' have different lengths.
  • the straight sections 9 of a first condenser tube part 41 which will form the first tube layer 5 of the condenser 3, are formed longer than the straight sections 9 'of a second condenser tube part 42, which will form the second tube layer 6.
  • the tube loops 8 and 8 ' are formed in one pass.
  • the distance between the rectilinear portions 9 and between the rectilinear portions 9 ' is made equal in both condenser tube parts 41 and 42, respectively.
  • a curved section 11 is formed whose radius of curvature is greater than that of the curved sections 10, 10 '.
  • Fig. 4 shows a second step of the manufacturing process.
  • the first condenser tube part 41 is pivoted over the second condenser tube part 42 to form the tube layers 5, 6.
  • the radius of curvature of the section 11 narrows.
  • the rectilinear sections 9, 9 'of the tube layers 5, 6 intersect at an angle of approximately 90 °, as in FIG Fig. 5 and the radius of curvature of section 11 is substantially the same as sections 10, 10 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (18)

  1. Condenseur de fluide frigorifique (3) pour un appareil frigorifique, qui comporte un tuyau de condenseur (4) plié pour former une couche tubulaire (5) comportant plusieurs boucles tubulaires (8), les boucles tubulaires (8) étant fixées par des entretoises (9') dans leur position les unes par rapport aux autres, caractérisé en ce que les entretoises (9') sont formées également par un tuyau de condenseur.
  2. Condenseur (3) selon la revendication 1, caractérisé en ce que la couche tubulaire (5) et les entretoises (9') sont des parties d'une pièce tubulaire cohérente.
  3. Condenseur (3) selon la revendication 1 ou 2, caractérisé en ce que les entretoises (9') sont formées par des boucles tubulaires (8') d'une autre couche tubulaire (6) du condenseur de fluide frigorifique (3).
  4. Condenseur selon la revendication 3, caractérisé en ce que les couches tubulaires (5, 6) sont fixées les unes aux autres par soudage, en particulier soudage par points.
  5. Condenseur selon la revendication 3, caractérisé en ce que les couches tubulaires (5, 6) sont fixées les unes aux autres par des éléments d'emboîtement (20) enfichés dessus.
  6. Condenseur (3) selon la revendication 3, 4 ou 5, caractérisé en ce que les couches tubulaires (5, 6) sont entrelacées les unes avec les autres.
  7. Condenseur (3) selon l'une quelconque des revendications 3 à 5, caractérisé en ce que les couches tubulaires (5, 6) s'étendent dans deux plans parallèles.
  8. Condenseur (3) selon l'une quelconque des revendications 3 à 7, caractérisé en ce qu'une pièce tubulaire de transition (11), par laquelle les couches tubulaires (5, 6) tiennent ensemble, est disposée sur un angle du condenseur.
  9. Condenseur (3) selon l'une quelconque des revendications 3 à 8, caractérisé en ce que chaque boucle tubulaire (8, 8') comporte deux sections (9, 9') rectilignes, qui sont reliées entre elles par une section (10, 10') incurvée.
  10. Condenseur (3) selon l'une quelconque des revendications 3 à 9, caractérisé en ce que chaque boucle tubulaire (8, 8') d'une couche tubulaire (5, 6) est fixée sur au moins un point (14) sur l'autre couche tubulaire (6, 5).
  11. Procédé pour fabriquer un condenseur (3) pour un appareil frigorifique, en particulier selon l'une quelconque des revendications 1 à 9, caractérisé par les étapes suivantes :
    (a) formation d'une première couche tubulaire (5) par flexion multiple d'une première partie tubulaire de condenseur (41) ;
    (b) formation d'une seconde couche tubulaire (6) par flexion multiple d'une seconde partie tubulaire de condenseur (42) ;
    (c) pose de la première couche tubulaire (5) sur la seconde couche tubulaire (6) de telle sorte que les couches tubulaires (5, 6) se croisent en au moins un endroit (14) ;
    (d) fixation des couches tubulaires (5, 6) les unes aux autres sur au moins ce point de croisement (14).
  12. Procédé selon la revendication 11, caractérisé en ce qu'une section tubulaire (11), par laquelle les deux couches tubulaires (5, 6) tiennent ensemble, est repliée à l'étape (c) lors de la pose des couches tubulaires (5, 6) les unes sur les autres.
  13. Procédé selon la revendication 11 ou 12, caractérisé en ce que la première couche tubulaire (5) et la seconde couche tubulaire (6) sont fabriquées d'une façon cohérente et d'une seule pièce.
  14. Procédé selon l'une quelconque des revendications 11 à 13, caractérisé en ce que les couches tubulaires (5, 6) sont formées sous la forme d'une pluralité de boucles tubulaires (8, 8') reliées en série, chaque boucle tubulaire (8, 8') comportant deux sections (9, 9') parallèles et rectilignes, qui sont reliées les unes aux autres par une section (10, 10') incurvée.
  15. Procédé selon l'une quelconque des revendications 11 à 14, caractérisé en ce que les sections (9) rectilignes de la première couche tubulaire (5) sont réalisées dans une longueur qui se différencie de la longueur des sections (9') rectilignes de la seconde couche tubulaire (6).
  16. Procédé selon l'une quelconque des revendications 11 à 15, caractérisé en ce que la première couche tubulaire (5) et la seconde couche tubulaire (6) sont formées lors d'une opération et dans un plan.
  17. Procédé selon la revendication 14 et la revendication 16, caractérisé en ce que, lors de l'opération, une section tubulaire (11) reliant la première couche tubulaire (5) et la seconde couche tubulaire (6) est formée avec un rayon de courbure, qui est supérieur au rayon de courbure des sections (10, 10') incurvées des boucles tubulaires (8, 8').
  18. Appareil frigorifique, en particulier appareil réfrigérant ou de congélation, avec un condenseur (3) selon l'une quelconque des revendications 1 à 10.
EP06807408A 2005-11-30 2006-10-19 Condenseur de fluide frigorifique pour appareil frigorifique Not-in-force EP1957893B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005057158A DE102005057158A1 (de) 2005-11-30 2005-11-30 Kältemittel-Verflüssiger für ein Kältegerät
PCT/EP2006/067581 WO2007062916A1 (fr) 2005-11-30 2006-10-19 Condenseur de fluide frigorifique pour appareil frigorifique

Publications (2)

Publication Number Publication Date
EP1957893A1 EP1957893A1 (fr) 2008-08-20
EP1957893B1 true EP1957893B1 (fr) 2009-08-12

Family

ID=37607330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06807408A Not-in-force EP1957893B1 (fr) 2005-11-30 2006-10-19 Condenseur de fluide frigorifique pour appareil frigorifique

Country Status (6)

Country Link
EP (1) EP1957893B1 (fr)
AT (1) ATE439560T1 (fr)
DE (2) DE102005057158A1 (fr)
ES (1) ES2329719T3 (fr)
RU (1) RU2008121858A (fr)
WO (1) WO2007062916A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009000668A1 (de) 2009-02-06 2010-08-12 BSH Bosch und Siemens Hausgeräte GmbH Wärmetauscher, insbesondere Verflüssiger oder Verdampfer für ein Haushaltskältegerät
CN101629770B (zh) * 2009-08-14 2011-03-09 海信科龙电器股份有限公司 一种卧式冷柜冷凝器
US10145621B2 (en) 2012-02-17 2018-12-04 Hussmann Corporation Multi-zone circuiting for a plate-fin and continuous tube heat exchanger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1280453A (en) * 1968-06-24 1972-07-05 Univ Newcastle Heat exchangers
DE3309923C2 (de) * 1983-03-19 1985-10-31 Rolf Dipl.-Ing. 4100 Duisburg Bähr Wärmetauscher
EP0360086B1 (fr) * 1988-09-10 1993-03-10 Harald Klostermann Appareil sèche-linge
JPH0626777A (ja) * 1992-07-10 1994-02-04 Daikin Ind Ltd 熱交換器
US5540276A (en) * 1995-01-12 1996-07-30 Brazeway, Inc. Finned tube heat exchanger and method of manufacture
DE10005668B4 (de) * 2000-02-09 2005-06-16 Kermi Gmbh Röhrenheizkörper mit umlaufenden Heizröhren

Also Published As

Publication number Publication date
WO2007062916A1 (fr) 2007-06-07
ES2329719T3 (es) 2009-11-30
ATE439560T1 (de) 2009-08-15
EP1957893A1 (fr) 2008-08-20
DE102005057158A1 (de) 2007-05-31
DE502006004554D1 (de) 2009-09-24
RU2008121858A (ru) 2010-01-10

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