EP2244044A2 - Dispositif de condensation ainsi que pompe à chaleur et appareil ménager dotés d'un tel dispositif - Google Patents

Dispositif de condensation ainsi que pompe à chaleur et appareil ménager dotés d'un tel dispositif Download PDF

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Publication number
EP2244044A2
EP2244044A2 EP10382043A EP10382043A EP2244044A2 EP 2244044 A2 EP2244044 A2 EP 2244044A2 EP 10382043 A EP10382043 A EP 10382043A EP 10382043 A EP10382043 A EP 10382043A EP 2244044 A2 EP2244044 A2 EP 2244044A2
Authority
EP
European Patent Office
Prior art keywords
condenser
coolant line
cooling
coolant
line
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Withdrawn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
EP10382043A
Other languages
German (de)
English (en)
Other versions
EP2244044A3 (fr
Inventor
Horst Jürgen Duschek
Pilar Balerdi Azpilicueta
Roberto San Martín Sancho
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 EP2244044A2 publication Critical patent/EP2244044A2/fr
Publication of EP2244044A3 publication Critical patent/EP2244044A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • F28F1/006—Tubular elements; Assemblies of tubular elements with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/007—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/06—Hollow fins; fins with internal circuits

Definitions

  • the present invention relates to a condenser (condenser), and a heat pump and a household appliance with such a condenser.
  • Condenser as used for example in condensation dryers, refrigerators, refrigerators / freezers or freezers, have a pipe in which a coolant flows.
  • the pipe or coolant line is provided on its outer side with cooling fins, via which air can be moved by means of a cooling air blower.
  • the cooling fins are usually made of a large number of thin aluminum sheet fins that need to be extra attached to the outside of the pipe or coolant line, which is done for example by brazing.
  • the production of such condenser with cooling fins is therefore quite complex and expensive. Due to their filigree construction, the thin fins of the cooling fins are also easy to damage and settle quickly with dust or other impurities.
  • the condensation clothes dryer has a closed process air circuit in which drying air can be supplied via an air inlet of a drying chamber by means of a blower, via an air outlet from this can be discharged, to dehumidify in a heat exchanger and then reheated by a heater. Furthermore, this unit is provided with a heat pump, with a refrigerant circuit in which refrigerant in circulated to a conduit system to which an evaporator, a compressor, the condenser and a throttle is connected, wherein the heat exchanger containing the evaporator and the heating means the condenser.
  • cooling ribs are arranged at a first section of the line system between the compressor and condenser and / or at a second section of the line system between condenser and throttle, which can be acted upon by cooling air movable by a cooling air fan.
  • cooling fins are provided in a manner as previously described in connection with the condenser of DE 44 09 607 C2 was explained. This has the disadvantage that the production of such a portion of the conduit system with cooling fins in turn is quite complex and expensive. In addition, the thin fins of the cooling fins damage easily and settle quickly with dust.
  • the invention has the object or the technical problem of providing a condenser which can be produced in a comparatively simple manner, is little polluted and yet effectively coolable and has a good liquefying performance; Furthermore, a heat pump and a household appliance, in particular a condensation clothes dryer, a refrigerator, a refrigerator / freezer or a freezer, with such a condenser to be provided.
  • This condenser in particular a heat pump, with a coolant line, through which a coolant can be conducted, is characterized in that the coolant line itself (or a substantial portion thereof) is designed as a cooling rib.
  • the condenser according to the invention is preferably designed as an air-cooled condenser, which is e.g. is cooled by a blower.
  • a blower Unlike the prior art solution of the invention uses no separate or additional cooling fins on the coolant line. Rather, the coolant line itself (or a substantial portion thereof) as a cooling fin, so as compared to a flat, in particular to a round tube, wide, elongated element formed, or vice versa. In this way, the coolant line assumes an advantageous dual function, since they can take over both the function of the line of the coolant and an improved heat dissipation without further additional components. The construction of the coolant line and the condenser is thereby considerably simplified.
  • the configured as a cooling fin coolant line of the condenser according to the invention is therefore very robust and not so easy to damage. Even if this coolant line forms an entire cooling fin system, this construction will not settle too quickly with dust or other contaminants.
  • the cooling line designed as a cooling fin does not have as large overall surface area as in a conventional condenser with conventional cooling fins, it has been found that the condenser according to the invention is still effectively coolable and also at higher temperatures of about 30 ° C, a good liquefaction Has performance, in particular, when the condenser is cooled by means of a cooling air blower.
  • the condenser according to the invention is particularly suitable for use in heat pumps, such as e.g. used in condensation laundry driers.
  • the object underlying the invention is achieved according to a second aspect by a heat pump according to the invention with the features of claim 12.
  • This heat pump is provided with a condenser according to one of claims 1 to 11.
  • this condenser can be used as an additional condenser to a main condenser.
  • the object underlying the invention is achieved according to a third aspect by an inventive household appliance with the features of claim 13.
  • This household appliance in particular a condensation clothes dryer, a refrigerator, fridge / freezer or a freezer, with a condenser according to one of claims 1 provided to 11.
  • a condenser 2 according to the invention shown in a schematic side view according to a first embodiment has one in a holder 4 held, meandering arranged coolant line 6, through which a coolant is passed through.
  • the coolant inlet and the coolant outlet of the condenser 2 are designated by the reference numerals 8 and 10.
  • the flow direction of the coolant is indicated by arrows.
  • the coolant line 6 itself (or a substantial portion thereof) is formed as a cooling fin. This is achieved in the present example, characterized in that the coolant line 6 is configured in the form of a flattened conduit 12, as in the Fig. 2 it can be seen which an enlarged sectional view along the line II-II in Fig. 1 represents.
  • the width-length ratio (B / L) of this flattened conduit 12 is preferably in the range from 1: 3 to 1:30, in particular 1: 5 to 1:20, in particular 1: 7 to 1:15. In the present example it is about 1: 8.
  • the flattened power tube can be next to the in Fig. 2 However, shown variant, have any other suitable flat, rib-like or wing-like cross-sectional shape. Further, the flattened power tube may have one or more inner flow channels for the coolant.
  • the coolant line 6 formed as a cooling fin has a plurality of spaced adjacent line portions 6a to 6n, which together form a cooling fin system with multiple, each formed by a different portion of the coolant line 6, adjacent individual cooling fins.
  • These adjacent line portions 6a to 6n are made by deforming, that is, in this case, bending the coolant pipe 6 to the meandering shape.
  • the condenser 2 according to the invention When the condenser 2 according to the invention is cooled during operation, for example by means of a cooling air blower, which is the case in the Fig. 1
  • the arrangement of the condenser is then preferably carried out in a direction perpendicular to the plane of the drawing, the cooling air flow generated by fan S sweeps along the left and right in the longitudinal direction of a respective flattened conduit 12, as in Fig. 2 is sketched, or between each two adjacent flattened conduits 12 therethrough. Due to the large outer surface of the flattened conduit 12, this leads to an effective heat dissipation and thus to an effective cooling and Liquefaction of the coolant within the coolant line 6 designed as a cooling fin.
  • Fig. 3 shows a schematic, exploded side view of an essential part of a condenser 2 according to the invention according to a second embodiment.
  • a cooling fin coolant line 6 has a plurality of individual straight sections 14, which are arranged side by side and at a distance from each other and in each case via connecting pieces 16 connected to each other, for example, soldered or welded.
  • the connecting pieces 16 are in turn flattened, U-shaped pipe pieces which mate with the ends of the straight sections 14.
  • the connectors 16 are not limited to this U-shape but may have other suitable shapes.
  • Fig. 4 shows a schematic sectional view through a substantial portion of a condenser 2 according to the invention according to a third embodiment.
  • the cooling line 6 formed as a cooling fin has a plurality of individual straight sections 14, which are arranged next to one another.
  • the sections 14 are interconnected via two (or more) opposing tubular plugs 18, eg, by welding or brazing.
  • a claw 18 is associated with one end of the individual sections 14 and the other claw 18 in each case the other end of the individual sections 14.
  • the condenser 2 in turn receives a plurality of spaced adjacent line portions, which together form a cooling fin system with a plurality of, each formed from a different portion of the coolant line 6, adjacent individual cooling fins.
  • the collecting pieces 18 have inner separating elements 20 (in the figure only one is shown), which serve for the separation and sealing of individual portions of the collecting pieces 18 and deflect the flow path of the coolant respectively from one side to the other side of the condenser 2 ,
  • inner separating elements 20 in the figure only one is shown
  • two adjacent sections 14, 14 form a parallel flow path.
  • individual flow paths or more than two parallel flow paths could also be defined.
  • Fig. 5 shows a schematic, exploded perspective view of an interface portion of a configured as a cooling fin coolant line 6 of a condenser according to the invention according to a fourth embodiment.
  • Fig. 6 shows a schematic perspective view of this interface area in an assembled state.
  • This interface region is preferably that region of the coolant line 6 which has the coolant inlet and the coolant outlet and is connected to the external components of a coolant circuit of a superordinate device, for example a condensation tumble dryer, directly or indirectly via intermediate lines ,
  • the cooling line 6 formed as a cooling fin is in each case equipped with an adapter element 22, which is provided with a) a first, wide, flattened connection region 22a, which is assigned to the coolant line 6, and b) a second, and with respect to the first Connection region 22a narrow and rounded or round connection portion 22b, which is associated with a rounded, in particular round, connection pipe 24, via which the condenser is connected with its formed as a cooling fin coolant line 6 to an external component of a coolant circuit.
  • an adapter element 22 which is provided with a) a first, wide, flattened connection region 22a, which is assigned to the coolant line 6, and b) a second, and with respect to the first Connection region 22a narrow and rounded or round connection portion 22b, which is associated with a rounded, in particular round, connection pipe 24, via which the condenser is connected with its formed as a cooling fin coolant line 6 to an external component of a coolant circuit.
  • the adapter element 22 can, as in the variant according to FIGS. 5 and 6 be configured as a separate element which is to be connected, for example by gluing, soldering or welding, with the respective end of the coolant line of the condenser.
  • the wide, flattened connection region can be produced, for example, by plastically deforming a separate cylindrical tube.
  • the second, narrow, rounded connection area may be an undeformed portion of the cylindrical tube itself.
  • the adapter element 22 on the coolant line 6 designed as a cooling rib.
  • this can be from a originally made round tube, which, except at its ends, flattened or widened and flattened.
  • Fig. 7 shows a schematic perspective view of a substantial portion of a coolant line 6 of a condenser according to the invention according to a fifth embodiment.
  • the cooling line 6 formed as a cooling fin is constructed of a plurality of arranged in a row, juxtaposed micro-tubes 26, which together form a flattened, elongated, rib-like coolant line cross section, similar to that of Fig. 2 , form.
  • the micro-tubes 26, which may have an outer diameter of 0.5 to about 5 mm, for example, by gluing, soldering (in the Fig. 7 indicated by reference numeral 28) or welding individually connected to each other, or by a holder in the in Fig. 7 fixed position shown.
  • micro-tubes 26 may of course be arranged in multiple rows and / or offset from each other in other embodiments of the invention, but a flow-favorable outer contour is desirable if the condenser, for example by means of a cooling air Blower is cooled.
  • Fig. 8 shows a schematic perspective view of a substantial portion of a coolant line 6 of a condenser according to the invention according to a sixth embodiment.
  • This variant largely corresponds to the according Fig. 7
  • the juxtaposed micro-tubes 26 are integrally formed in the coolant line 6, for example, by extruding the coolant line 6 in one piece, at the same time the micro-tubes 26 are formed.
  • this extrusion method in particular designed as a cooling fin coolant lines 6 with a smooth outer surface can be easily and effectively produced.
  • the embodiments according to FIGS. 7 and 8 can also be combined.
  • a heat pump or a household appliance in the form of a condensation tumble dryer, a refrigerator, a refrigerator / freezer or a freezer can be equipped in an advantageous manner with the condenser 2 according to the invention.
  • Fig. 9 shows a schematic block diagram of an essential portion of a preferred embodiment of a condensation clothes dryer 30 according to the invention (hereinafter referred to as dryer 30).
  • the dryer 30 has a closed process air circuit in which in an air duct 32 by means of a blower 34 drying air via an air inlet 36 of a drying chamber 38 (here: a drum) can be fed and discharged via an air outlet 40 back out of this.
  • the discharged air is dehumidified in a heat exchanger 42 and then reheated by a heater 44.
  • the dryer 30 is further equipped with a heat pump, with a refrigerant circuit in which refrigerant circulates in a line system 46, to which an evaporator 48, a compressor 50, a main condenser 52 and a throttle 54 are connected.
  • the heat exchanger 42 includes the evaporator 48, and the heater 44 includes the main condenser 52.
  • a condenser for further cooling of the refrigerant, in addition to the main condenser 52, a condenser according to the invention, as described above and designated by the reference numeral 2, is provided as additional condenser 56 and at a first portion 46 a of the line system 46 between the main condenser 52 and Choke 54 arranged.
  • the additional condenser 56 is supplied with cooling air, which is moved by a cooling air blower 58.
  • the air flow rate of the cooling air blower 58 can be regulated by means of a control device 60 as a function of the temperature detected by a sensor 62 and / or the pressure of the refrigerant in the line system 46 detected by the sensor.
  • auxiliary condenser 56 could also be disposed on a second portion 46b of the conduit system between the compressor 50 and the main condenser 52. This is indicated in FIG. 10 by dashed lines and the reference numerals 56 'and 58'.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Drying Of Solid Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP10382043.7A 2009-04-15 2010-02-25 Dispositif de condensation ainsi que pompe à chaleur et appareil ménager dotés d'un tel dispositif Withdrawn EP2244044A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200930066A ES2385767B1 (es) 2009-04-15 2009-04-15 Licuador así como también bomba de calor y aparato doméstico con un licuador de tal tipo.

Publications (2)

Publication Number Publication Date
EP2244044A2 true EP2244044A2 (fr) 2010-10-27
EP2244044A3 EP2244044A3 (fr) 2017-01-11

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EP10382043.7A Withdrawn EP2244044A3 (fr) 2009-04-15 2010-02-25 Dispositif de condensation ainsi que pompe à chaleur et appareil ménager dotés d'un tel dispositif

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EP (1) EP2244044A3 (fr)
ES (1) ES2385767B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2871432A1 (fr) 2013-11-06 2015-05-13 BSH Hausgeräte GmbH Pompe à chaleur pour un appareil ménager
WO2015068092A1 (fr) 2013-11-06 2015-05-14 BSH Hausgeräte GmbH Pompe à chaleur destinée à un appareil ménager
DE102019207225A1 (de) * 2019-05-17 2020-11-19 BSH Hausgeräte GmbH Gerät zum Trocknen von Wäsche und Verfahren zum Betreiben einer Wärmepumpe eines solchen Geräts

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409607C2 (de) 1993-04-21 2002-03-14 Miele & Cie Kondensationswäschetrockner mit einer Wärmepumpe

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
JPH01312391A (ja) * 1988-06-10 1989-12-18 Matsushita Electric Ind Co Ltd 伝熱管
DE3843305A1 (de) * 1988-12-22 1990-06-28 Thermal Waerme Kaelte Klima Verfluessiger fuer ein kaeltemittel einer fahrzeugklimaanlage
FR2742526A1 (fr) * 1995-12-18 1997-06-20 Sanyo Radiator Company Limited Tubes pour condenseur
EP1203923B1 (fr) * 2000-11-01 2006-07-26 AKG-Thermotechnik GmbH & Co.KG Echangeur de chaleur, en particulier sèche-linge à condensation
JP2005037054A (ja) * 2003-07-15 2005-02-10 Sanyo Electric Co Ltd 冷媒サイクル装置用熱交換器
BRPI0519933A2 (pt) * 2005-02-02 2009-08-18 Carrier Corp trocador de calor, e, sistema de compressão de vapor refrigerante
EP2158434A1 (fr) * 2007-05-22 2010-03-03 INSTITUT FÜR LUFT- UND KÄLTETECHNIK GEMEINNÜTZIGE GESELLSCHAFT mbH Condenseur de paroi arrière de réfrigérateurs de ménage
DE102007039292A1 (de) * 2007-08-20 2009-02-26 Behr Gmbh & Co. Kg Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409607C2 (de) 1993-04-21 2002-03-14 Miele & Cie Kondensationswäschetrockner mit einer Wärmepumpe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2871432A1 (fr) 2013-11-06 2015-05-13 BSH Hausgeräte GmbH Pompe à chaleur pour un appareil ménager
WO2015068092A1 (fr) 2013-11-06 2015-05-14 BSH Hausgeräte GmbH Pompe à chaleur destinée à un appareil ménager
DE102019207225A1 (de) * 2019-05-17 2020-11-19 BSH Hausgeräte GmbH Gerät zum Trocknen von Wäsche und Verfahren zum Betreiben einer Wärmepumpe eines solchen Geräts

Also Published As

Publication number Publication date
ES2385767A1 (es) 2012-07-31
ES2385767B1 (es) 2013-06-17
EP2244044A3 (fr) 2017-01-11

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