EP1880158B1 - Echangeur de chaleur pour appareil frigorifique - Google Patents

Echangeur de chaleur pour appareil frigorifique Download PDF

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Publication number
EP1880158B1
EP1880158B1 EP06725516A EP06725516A EP1880158B1 EP 1880158 B1 EP1880158 B1 EP 1880158B1 EP 06725516 A EP06725516 A EP 06725516A EP 06725516 A EP06725516 A EP 06725516A EP 1880158 B1 EP1880158 B1 EP 1880158B1
Authority
EP
European Patent Office
Prior art keywords
housing
heat exchanger
exchanger according
passages
fan
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
EP06725516A
Other languages
German (de)
English (en)
Other versions
EP1880158A1 (fr
Inventor
Hans Ihle
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 EP1880158A1 publication Critical patent/EP1880158A1/fr
Application granted granted Critical
Publication of EP1880158B1 publication Critical patent/EP1880158B1/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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/003—General constructional features for cooling refrigerating machinery
    • 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
    • F28D1/0233—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 air flow channels
    • F28D1/024—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 air flow channels with an air driving element
    • 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
    • F28D1/0472—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 helically or spirally coiled
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0021—Details for cooling refrigerating machinery using air guides
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0026—Details for cooling refrigerating machinery characterised by the incoming air flow
    • F25D2323/00266—Details for cooling refrigerating machinery characterised by the incoming air flow through the bottom
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0026—Details for cooling refrigerating machinery characterised by the incoming air flow
    • F25D2323/00267—Details for cooling refrigerating machinery characterised by the incoming air flow through the side
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0027—Details for cooling refrigerating machinery characterised by the out-flowing air
    • F25D2323/00276—Details for cooling refrigerating machinery characterised by the out-flowing air from the bottom
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0027—Details for cooling refrigerating machinery characterised by the out-flowing air
    • F25D2323/00277—Details for cooling refrigerating machinery characterised by the out-flowing air from the side

Definitions

  • the present invention relates to a heat exchanger having an open, tube-like housing and a conduit disposed therein, which serves for guiding a first heat transfer fluid, and which has a developed length which is longer than the length of the housing, which is open at its two Strininstall, to be flowed through by a second heat transfer fluid, and a refrigeration device in which such a heat exchanger is used.
  • a heat exchanger and such a refrigerator are out US 5592829 known.
  • the line is designed as a helix.
  • the housing around the helix forces the flow of the second heat transfer fluid to stroke along the helix along its entire length so as to achieve a high heat exchange capacity with a moderate throughput of the second heat transfer fluid.
  • the US 2311947 shows a heat exchanger according to the preamble of claim 1.
  • An object of the present invention is to improve the efficiency of a heat exchanger of the type specified.
  • these openings permit an inflow or outflow of the second heat transfer fluid.
  • Its flow field in the interior of the housing is therefore not oriented purely in the longitudinal direction, but it also has radial components, so that even from the open end faces of the housing remote line components, such as the turns of a coil or longitudinal sections a meandering or arranged in at least one loop line can be supplied with second heat transfer fluid, which is not preheated at another portion of the coil or the meander (or, depending on the direction of the heat flow in the heat exchanger, pre-cooled).
  • a favorable, all-sided action on the line within the housing with not yet preheated by other power sections air results when advantageously the openings over the circumference of the lateral surface evenly distributed with the same or different opening cross-section are arranged.
  • the proportion of apertures on the surface of the wall decreases with increasing distance from a first end face of the housing.
  • the opening cross-section of the apertures decreases with increasing distance from the first end face.
  • One of the second end side adjacent half of the housing may be free of apertures.
  • the heat exchanger is preferably provided with a blower.
  • This fan is preferably arranged on the second end face of the housing.
  • this second end face is preferably a downstream side, i. the blower sucks the second heat transfer fluid through the housing, and the complete flow of the second refrigerant passes through the opening on the second end face so that it can be diverted therefrom and supplied for further use.
  • the fan may also be arranged centrally in the housing;
  • a portion of the apertures, which decreases toward the fan from both end sides of the housing, can be provided on the surface of the wall, so that second heat carrier fluid flows into the opening through the apertures located upstream from the fan Enter housing and this can leave through the downstream of the fan breakthroughs again.
  • the invention further relates to a refrigeration device having a heat exchanger in the above-mentioned manner as a condenser.
  • the second heat transfer fluid in this case is generally air, while the first heat transfer fluid is a refrigerant of the refrigerator.
  • the in Fig. 1 shown heat exchanger comprises a bent into a helical coil pipe 1 for a first heat transfer fluid, preferably a refrigerant.
  • a housing 2 extends coaxially to the longitudinal axis A of the pipeline 1.
  • the housing 2 is here essentially composed of two rigid frame members 3, 4, which form opposite end faces of the housing 2, and one around the outer edges of the two frame members 3, 4th extending the four side walls of the housing forming sheet 5.
  • the facing the subject frame member 3 has a large-scale inner opening 6; in a corresponding opening 7 of the other Frame member 4 engage radial struts 8, which carry an electric motor 9 coaxial with the coiled tubing 1.
  • the electric motor 9 drives a fan wheel 10 protruding from the housing 2 and thus effects an air flow through the housing 2 from the side of the frame element 3 to that of the frame element 4.
  • Fig. 2 illustrates the flow conditions in the interior of the heat exchanger according to the invention by means of an axial section.
  • a majority of the air conveyed by the fan wheel 10 through the heat exchanger enters the latter through the opening 6. If this were the only air inlet opening, an air stream substantially parallel to the longitudinal axis would result, with part of the air flowing along the pipe 1, while a large part of the air flow will pass through the free interior of the coil, and hardly any Heat from the pipe 1 receives.
  • the windings of the pipeline 1 lying one behind the other in the flow direction in such a case severely brake the air flow, so that a high flow velocity, which makes up a substantial part of the air flow rate of the heat exchanger, is achieved in the empty interior of the coil.
  • the apertures 12 allow an influx of air from the lateral direction, which runs obliquely to the longitudinal axis in the interior of the housing 2, so that even windings of the pipeline 1, which are far away from the inlet opening 6, are still reached by cool fresh air.
  • a modified embodiment of a heat exchanger according to the invention is in Fig. 3 in one too Fig. 2 shown analogue section.
  • the blower formed by the electric motor 9 and the fan wheel 10 is arranged centrally in the heat exchanger, inside the coil formed by the pipe 1.
  • These openings 13 lend the air flow downstream of the fan a radially to outwardly directed velocity component, so that it is also avoided here that a turn of the pipe 1 is in the lee of an adjacent turn and is supplied insufficiently with cooling air.
  • a partition wall 14 which extends from the outer wall of the housing 2 forming sheet 5 in height Fan wheel 10 extends into the immediate vicinity of the helix.
  • Fig. 4 shows as an example of application of the heat exchanger according to the invention a horizontal section through a refrigerator or freezer with a body 20 and a door 21.
  • a machine room niche 22 is recessed in the side by side as condenser 23 for a refrigerant of in Fig. 1 or 2 shown heat exchanger and a compressor 24 are housed.
  • the pipe 1 of the condenser 23 is connected to a high-pressure outlet of the compressor 24.
  • a refrigerant and fresh air driven by the blower pass through the condenser 23 in opposite directions.
  • Fresh air heated in the condenser 23 flows to the compressor 24 and cools this; In addition, it promotes the evaporation of condensate discharged from the interior 25 of the refrigerator in an evaporation tray 26 mounted on the compressor 24.
  • Air inlet and outlet openings 27 and 28 are formed here in lateral walls of the machine room niche 22; alternatively, they could be provided in the bottom thereof to supply and discharge fresh air through a hollow equipment base underlying the body 20, or the back of the engine room niche 22 could be left open in places to allow air exchange.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (11)

  1. Echangeur de chaleur (23) qui comprend un boîtier (2) semblable à un tube ouvert sur ses deux côtés frontaux, à l'intérieur duquel est disposée une conduite (1) qui sert à conduire un premier fluide caloporteur et qui présente une longueur déroulée qui est plus longue que la longueur du boîtier (2), dont la surface d'enveloppe, au moins dans la partie d'un premier côté frontal, est munie par sections de passages (12, 13), caractérisé en ce que la proportion de passages (12) sur la surface d'enveloppe (5) diminue au fur et à mesure que l'écart du premier côté frontal (6) par rapport au boîtier (2) augmente et/ou en ce que la section d'ouverture des passages (12) diminue au fur et à mesure que l'écart par rapport au premier côté frontal (6) augmente.
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que les passages (12, 13) sont disposés en étant répartis de manière régulière sur la circonférence de la surface d'enveloppe du boîtier (2).
  3. Echangeur de chaleur selon l'une quelconque des revendications 1 à 2, caractérisé en ce qu'une moitié du boîtier (2), adjacente au deuxième côté frontal (7), est exempte de passages (12).
  4. Echangeur de chaleur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la conduite (1) est formée en spirale et en ce que la longueur de la spirale correspond au moins approximativement à la longueur du boîtier (2).
  5. Echangeur de chaleur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la conduite (1) est formée de manière semblable à un méandre et en ce que la longueur du méandre correspond au moins approximativement à la longueur du boîtier (2).
  6. Echangeur de chaleur selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'un ventilateur (9, 10) est ménagé pour entraîner un flux d'un second fluide caloporteur à travers le boîtier (2).
  7. Echangeur de chaleur selon l'une quelconque des revendications 1 ou 6 et selon la revendication 3, caractérisé en ce que le ventilateur (9, 10) est disposé sur le deuxième côté frontal (7) du boîtier (2).
  8. Echangeur de chaleur selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le deuxième côté frontal (7) est un côté situé en aval par rapport au sens d'écoulement du second fluide caloporteur.
  9. Echangeur de chaleur selon la revendication 6, caractérisé en ce que le ventilateur (9, 10) est disposé de manière centrale dans le boîtier (2).
  10. Echangeur de chaleur selon la revendication 9, caractérisé en ce que la proportion des passages (12, 13) à la surface de la paroi des deux côtés frontaux (6, 7) du boîtier diminue en direction du ventilateur (9, 10).
  11. Appareil frigorifique, caractérisé en ce qu'il présente un échangeur de chaleur (23) selon l'une quelconque des revendications précédentes, en tant que condenseur.
EP06725516A 2005-05-10 2006-04-03 Echangeur de chaleur pour appareil frigorifique Not-in-force EP1880158B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005021554A DE102005021554A1 (de) 2005-05-10 2005-05-10 Wärmetauscher für ein Kältegerät
PCT/EP2006/061270 WO2006120083A1 (fr) 2005-05-10 2006-04-03 Echangeur de chaleur pour appareil frigorifique

Publications (2)

Publication Number Publication Date
EP1880158A1 EP1880158A1 (fr) 2008-01-23
EP1880158B1 true EP1880158B1 (fr) 2010-08-11

Family

ID=36758379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06725516A Not-in-force EP1880158B1 (fr) 2005-05-10 2006-04-03 Echangeur de chaleur pour appareil frigorifique

Country Status (8)

Country Link
US (1) US8881547B2 (fr)
EP (1) EP1880158B1 (fr)
CN (1) CN100582630C (fr)
AT (1) ATE477465T1 (fr)
DE (2) DE102005021554A1 (fr)
ES (1) ES2347909T3 (fr)
RU (1) RU2398171C2 (fr)
WO (1) WO2006120083A1 (fr)

Families Citing this family (12)

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Publication number Priority date Publication date Assignee Title
WO2008097208A2 (fr) * 2007-02-08 2008-08-14 Klimasan Klima Sanayi Ve Ticaret A.S. Condensateur
CN101324389B (zh) * 2007-06-13 2011-11-09 博西华家用电器有限公司 冷凝器及使用该冷凝器的家用电器
TR200808917A2 (tr) * 2008-11-21 2010-06-21 Bsh Ev Aletleri̇ San. Ve Ti̇c. A.Ş. Bobin kondenser içeren bir soğutucu
DE102009000844A1 (de) 2009-02-13 2010-08-19 BSH Bosch und Siemens Hausgeräte GmbH Wärmetauscher, insbesondere Verflüssiger für ein Haushaltskältegerät
DE102009001720B4 (de) * 2009-03-20 2011-04-21 Komitec Automation Gmbh Mehrkanalflachrohrwärmeübertrager, insbesondere für Haushaltskühlgeräte
CN101995117B (zh) * 2010-10-12 2012-07-04 宣伯民 房间空气调节器管流式冷凝器
DE102012008268A1 (de) * 2012-04-18 2013-10-24 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
CN105135910B (zh) * 2015-08-14 2018-12-07 安徽蓝盾光电子股份有限公司 一种高温气体的冷却装置
CN105937859B (zh) * 2016-06-01 2018-05-18 广东水利电力职业技术学院 一种套管式冷却系统
CN110793128A (zh) * 2018-08-02 2020-02-14 宁波方太厨具有限公司 一种换热装置、安装有该装置的吸油烟机及厨房空调系统
CN111907682B (zh) * 2020-07-29 2021-10-12 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) 多单元集成式船舶冷却器
CN113566607A (zh) * 2021-06-17 2021-10-29 江苏格安德环保工程科技有限公司 一种具有内部阻隔板的气体换热器

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CN2597919Y (zh) * 2003-01-10 2004-01-07 厦门市立精实业有限公司 一种使空气制冷的设备

Also Published As

Publication number Publication date
DE102005021554A1 (de) 2006-11-16
RU2398171C2 (ru) 2010-08-27
WO2006120083A1 (fr) 2006-11-16
DE502006007646D1 (de) 2010-09-23
US8881547B2 (en) 2014-11-11
ATE477465T1 (de) 2010-08-15
US20090090126A1 (en) 2009-04-09
ES2347909T3 (es) 2010-11-25
CN101171492A (zh) 2008-04-30
EP1880158A1 (fr) 2008-01-23
CN100582630C (zh) 2010-01-20
RU2007137813A (ru) 2009-06-20

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