EP1001072A2 - Wärmepumpe für einen Wäschetrockner - Google Patents
Wärmepumpe für einen Wäschetrockner Download PDFInfo
- Publication number
- EP1001072A2 EP1001072A2 EP99122630A EP99122630A EP1001072A2 EP 1001072 A2 EP1001072 A2 EP 1001072A2 EP 99122630 A EP99122630 A EP 99122630A EP 99122630 A EP99122630 A EP 99122630A EP 1001072 A2 EP1001072 A2 EP 1001072A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat pump
- refrigerant
- compressor
- process air
- evaporator
- 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- Withdrawn
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/206—Heat pump arrangements
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
-
- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
Definitions
- the invention relates to a heat pump for a clothes dryer, the Process air circuit is coupled to a refrigerant circuit in which an engine compressor conveys a refrigerant via an evaporator and a condenser, which is connected to the evaporator via a throttle.
- engine compressor here is a motor-driven compressor in semi-hermetic or Hermetic design understood.
- the invention has for its object one with a process air circuit Specify tumble dryer coupled heat pump with which at the same time reliable operation a simple adjustment of the two circuits with comparative little technical effort is achieved.
- the invention is based on the consideration that one with respect to the compressor performance for a certain pressure ratio between condensing pressure and evaporation pressure or designed for a corresponding temperature ratio Heat pump even at a higher temperature level of the refrigerant both in the area of the evaporator and in the area of the condenser can be operated reliably if only the motorized compressor capacity, but not the cooling capacity is increased.
- the invention uses the knowledge that in the usual dimensioning of the electric motor of a hermetic or semi-hermetic compressor not only that Pressure or temperature ratio in the heat pump circuit, but also that of the required refrigeration capacity as a parameter be used.
- the engine power of the compressor motor is one Evaporator temperature and a condenser temperature matched at an open secondary circuit with practically unlimited heat absorption capacity sets.
- the engine When using refrigerant R134a, the engine output, i.e. at a motor compressor in hermetic or semi-hermetic design Terminal power, to an evaporator temperature of approx. 15 ° C and a condenser temperature from approx. 55 ° C to 65 ° C, while such a designed heat pump by coupling it to a process air circuit a tumble dryer temperatures of about 25 ° C on the evaporator and about Set 75 ° C on the condenser.
- the compressor would be on the motor side with these Temperatures are overloaded with the result that the thermal switch due to the winding temperature switches off.
- the refrigerant R 404a is a mixture of 44% R125 (CF 3 -CHF 2 ) and 52% R143a (CH 3 -CF 3 ) and 4% R 134a (CF 3 -CH 2 F), while the refrigerant R407C is a mixture from 25% R125 and 23% R32 (CH 2 F 2 ) and 52% R134a.
- this higher-dimensioned motor compressor designed in an advantageous embodiment for the refrigerant R404A or R407C with a comparatively high refrigeration capacity, is used in combination with the refrigerant R134a (C 2 H 2 F 4 ) with a comparatively low refrigeration capacity, then this is the case when coupling it designed heat pump to the process air circuit of the tumble dryer setting comparatively high temperatures can be controlled without overloading the compressor motor.
- the advantages achieved with the invention are in particular that Use one refrigerant with low refrigeration capacity and one for another Refrigerant comparatively high refrigeration capacity designed engine compressor unproblematic adaptation of such a designed with regard to the energy transmission Heat pump circuit to a process air circuit of a clothes dryer is achieved. At the same time, a comparatively high drying temperature of reached about 75 ° to 80 °, so that the drying time is shortened accordingly.
- a heat pump circuit designed for all operating conditions always sets a stable operating state, are additional measures neither for setting or regulating the process air temperature nor for regulating of the heat pump circuit or individual components of the heat pump required.
- FIG. 1 shows schematically a heat pump clothes dryer with a completely closed process air circuit.
- the laundry dryer comprises a laundry drum 1 as a laundry drying room is flowed through with process air L in the direction of the arrows shown.
- the process air L is preferred in a closed process air flow through one completed, i.e. without supply and exhaust air openings provided process air duct guided.
- This has a channel part 2 for the dry warm air and one Channel part 3 for moist, comparatively cool air and a channel part 4 for the cool dry air between an evaporator 5 and a condenser 6.
- In the channel part 2 is between the condenser 6 and the laundry drum 1 Blower 7 driven by an electric motor, which the circulating air flow shown the process air L is maintained.
- the evaporator 5 and the condenser 6 are in the area of the process air duct a heat pump circuit 8 arranged such that the process air L in each case intensive contact with the heat exchanger surfaces of the evaporator 5 and those of the condenser 6 arrives.
- the heat pump circuit 8 contains other components the heat pump between the condenser 6 and the evaporator 5 a throttle device 9 and a motor-driven compressor 10. This is together with the electric motor 11 in a common housing 12 arranged.
- the motor compressor 10, 11 is of a hermetic design with welded Capsule housing 12 or semi-hermetic design with screwed Housing 12 executed.
- a collecting device is located below the evaporator 5 13 arranged for aqueous condensate K, which accumulates from the process air L. precipitates the cool heat exchanger surfaces of the evaporator 5.
- the heat pump, d. H. the compressor 10, the evaporator 5, the condenser 6 and that Expansion device 9, are for a certain amount of laundry and a certain Laundry drum 1 designed.
- liquid refrigerant KM which is conducted in the closed refrigerant or heat pump circuit 8 is evaporated by the heat flow Q 0 absorbed from the process air L in the evaporator 5 at low pressure p 0 and low temperature T 0 .
- the resulting refrigerant vapor is drawn in and compressed by the compressor 10, so that the refrigerant KM is liquefied again at a higher temperature T in the condenser 6 cooled by the process air L.
- the pressure ratio p / p 0 between the condensing pressure p and the evaporation pressure p 0 influences the power requirement P of the compressor 10, the heating power of the condenser 6, ie the condenser heat flow Q by the drive power P of the compressor 10, which corresponds to the terminal power of the engine, is higher than the heat output or the heat flow Q 0 of the evaporator 5.
- the evaporator heat flow Q 0 corresponds to the total cooling output.
- the liquefied and possibly supercooled refrigerant KM with the condensing pressure p is expanded by the throttle device 9 to the low evaporator pressure p 0 and fed back to the evaporator 5.
- the process air L in the liquefier 6 absorbs the thermal energy Q released during the liquefaction process and at least part of the compressor energy P and carries it into the laundry drum 1, where it is heated to a temperature of about 75 ° to 80 ° C.
- Process air L for heating the damp laundry and for evaporating or evaporating the moisture present in the laundry This is in turn led through the channel part 3 to the evaporator 5 and condenses there with simultaneous cooling of the process air L to a temperature of about 25 ° C.
- the final temperatures T, T 0 are set in the closed air circuit as a function of air leakage on the one hand and the heat emission from the laundry drum 1, the duct parts 2 to 4 and the compressor 10 on the other hand.
- a further increase in the temperature T of approximately 75 ° to 80 ° at the condenser 6 can, if necessary, be prevented by increasing the heat output of the compressor 10 or the compressor motor 11, for example by means of forced ventilation and / or oil sump cooling.
- thermal protection would again be triggered at these temperature conditions, because due to the higher refrigerating capacity of this refrigerant R404A or R407C compared to the refrigerant R134a higher volumetric drive power P of the motor compressor 10, 11 is required.
- the result of this would be that an evaporator temperature T 0 of 15 ° C. and a condenser temperature T of 55 ° C. would again occur in the case of a heat pump designed in this way.
- the use of a refrigerant KM with a higher cooling capacity and a motor compressor 10, 11 with a higher drive power P would therefore in turn lead to an overload of the electric motor 11.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Description
- 1
- Wäschetrommel
- 2,3,4
- Kanalteil/Prozessluftkreis
- 5
- Verdampfer
- 6
- Verflüssiger
- 7
- Gebläse
- 8
- Kältemittelkreis
- 9
- Drosseleinrichtung
- 10
- Verdichter
- 11
- Elektromotor
- 12
- Gehäuse
- 13
- Auffangeinrichtung
- K
- Kondensat
- KM
- Kältemittel
- L
- Prozessluft
Claims (5)
- Wärmepumpe für einen Wäschetrockner, dessen Prozessluftkreis (2,3,4) mit einem Kältemittelkreis (8) gekoppelt ist, in dem ein Motorverdichter ein Kältemittel (KM) über einen Verdampfer (5) und einen Verflüssiger (6) fördert, der über eine Drossel (9) mit dem Verdampfer (5) verbunden ist,
gekennzeichnet durch,
die Verwendung eines für ein anderes Kältemittel (KM) vergleichsweise hoher Kälteleistung ausgelegten Motorverdichters (10,11). - Wärmepumpe nach Anspruch 1,
dadurch gekennzeichnet,
dass als Kältemittel R134a und ein für das Kältemittel R404A oder R407C ausgelegter Motorverdichter (10,11) vorgesehen sind. - Wärmepumpe nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die Prozessluft (L) im Bereich des Verflüssigers (6) eine Temperatur 80°≥ T ≥ 70°, vorzugsweise T = 75°, aufweist. - Wärmepumpe nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass die Prozessluft (L) im Bereich des Verdampfers (5) eine Temperatur T0 ≥ 20°, vorzugsweise T0 = 25°, aufweist. - Wärmepumpe nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass eine Zwangsbelüftung und/oder eine Ölsumpfkühlung des Verdichters (10) bzw. des Verdichtermotors (11) vorgesehen ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29923619U DE29923619U1 (de) | 1998-11-13 | 1999-11-13 | Wärmepumpe für einen Wäschetrockner |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19852333A DE19852333A1 (de) | 1998-11-13 | 1998-11-13 | Wärmepumpe für einen Wäschetrockner |
DE19852333 | 1998-11-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1001072A2 true EP1001072A2 (de) | 2000-05-17 |
EP1001072A3 EP1001072A3 (de) | 2000-10-25 |
Family
ID=7887658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99122630A Withdrawn EP1001072A3 (de) | 1998-11-13 | 1999-11-13 | Wärmepumpe für einen Wäschetrockner |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1001072A3 (de) |
DE (1) | DE19852333A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006007444A1 (de) * | 2006-02-17 | 2007-08-23 | BSH Bosch und Siemens Hausgeräte GmbH | Vorrichtung und Verfahren zum Trocknen eines Gutes |
EP2025802A3 (de) * | 2007-08-13 | 2009-10-07 | BSH Bosch und Siemens Hausgeräte GmbH | Hybrides Hausgerät zum Trocknen |
CN102268808A (zh) * | 2010-06-04 | 2011-12-07 | 伊莱克斯家用产品股份有限公司 | 具有热泵系统的衣物处理机 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006016294A1 (de) * | 2006-04-06 | 2007-10-11 | BSH Bosch und Siemens Hausgeräte GmbH | Hausgerät zur Pflege von Wäschestücken |
DE102007062776A1 (de) * | 2007-12-27 | 2009-07-02 | BSH Bosch und Siemens Hausgeräte GmbH | Trockner, eingerichtet zum Betrieb unter Aufnehmen elektrischen Leistung, sowie Verfahren zu seinem Betrieb |
DE102011007715A1 (de) * | 2011-04-20 | 2012-10-25 | BSH Bosch und Siemens Hausgeräte GmbH | Wäschetrockner mit einer Trommel und einer Wärmepumpe |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994000529A1 (en) * | 1992-06-25 | 1994-01-06 | Great Lakes Chemical Corporation | Refrigerant blends containing 1,1,1,2,3,3,3-heptafluoropropane |
JPH08311437A (ja) * | 1995-05-18 | 1996-11-26 | Sanyo Electric Co Ltd | 作動流体 |
DE19638865A1 (de) * | 1995-09-23 | 1997-03-27 | Miele & Cie | Kondensationswäschetrockner mit einer Wärmepumpeneinrichtung |
DE19642165A1 (de) * | 1996-10-12 | 1998-04-16 | Kulmbacher Klimageraete | Wäschetrockner mit einem Wärmepumpenkreis |
-
1998
- 1998-11-13 DE DE19852333A patent/DE19852333A1/de not_active Ceased
-
1999
- 1999-11-13 EP EP99122630A patent/EP1001072A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994000529A1 (en) * | 1992-06-25 | 1994-01-06 | Great Lakes Chemical Corporation | Refrigerant blends containing 1,1,1,2,3,3,3-heptafluoropropane |
JPH08311437A (ja) * | 1995-05-18 | 1996-11-26 | Sanyo Electric Co Ltd | 作動流体 |
DE19638865A1 (de) * | 1995-09-23 | 1997-03-27 | Miele & Cie | Kondensationswäschetrockner mit einer Wärmepumpeneinrichtung |
DE19642165A1 (de) * | 1996-10-12 | 1998-04-16 | Kulmbacher Klimageraete | Wäschetrockner mit einem Wärmepumpenkreis |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 03, 31. März 1997 (1997-03-31) -& JP 08 311437 A (SANYO ELECTRIC CO LTD), 26. November 1996 (1996-11-26) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006007444A1 (de) * | 2006-02-17 | 2007-08-23 | BSH Bosch und Siemens Hausgeräte GmbH | Vorrichtung und Verfahren zum Trocknen eines Gutes |
EP2025802A3 (de) * | 2007-08-13 | 2009-10-07 | BSH Bosch und Siemens Hausgeräte GmbH | Hybrides Hausgerät zum Trocknen |
CN102268808A (zh) * | 2010-06-04 | 2011-12-07 | 伊莱克斯家用产品股份有限公司 | 具有热泵系统的衣物处理机 |
Also Published As
Publication number | Publication date |
---|---|
DE19852333A1 (de) | 2000-05-18 |
EP1001072A3 (de) | 2000-10-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4330456C1 (de) | Wäschetrockner | |
EP2115208B1 (de) | Kondensationstrockner mit einer wärmepumpe sowie verfahren zu seinem betrieb | |
EP2093083B1 (de) | Klimaanlage | |
DE19644583B4 (de) | Fahrzeugklimaanlage mit mehreren Kondensatoren und/oder Verdampfern | |
EP1611778B1 (de) | Verfahren und anordnung zur kühlung eines substrats, insbesondere eines halbleiters | |
DE19921554C2 (de) | Vorrichtung und Verfahren zum Kühlen eines Schalt- oder Steuerschrankes | |
WO1995010742A1 (en) | Dehumidifying air in an air-conditioned environment | |
DE3113471A1 (de) | Trockengeraet mit waermepumpe | |
DE3716393A1 (de) | Kaelteanlage | |
DE112015005763T5 (de) | Kältekreislaufvorrichtung | |
DE19638865A1 (de) | Kondensationswäschetrockner mit einer Wärmepumpeneinrichtung | |
DE10347748A1 (de) | Mehrfachzonen-Temperatursteuersystem | |
DE102021108212A1 (de) | Wärmepumpen-Klimatisierungssystem für ein Fahrzeug | |
EP1001072A2 (de) | Wärmepumpe für einen Wäschetrockner | |
DE60033261T2 (de) | Klimaanlage | |
DE112016006713T5 (de) | Klimatisierungsvorrichtung | |
EP2744936B1 (de) | Wäschetrocknungsgerät mit einer wärmepumpe umfassend einen antrieb sowie verfahren zu seinem betrieb | |
WO1982002588A1 (en) | Heat pump arrangement | |
EP2025802A2 (de) | Hybrides Hausgerät zum Trocknen | |
DE2946466C2 (de) | Heizeinrichtung mit einem Kältemittelkreislauf | |
DE3522974A1 (de) | Heissgasbypassregelung fuer den kaeltemittelkreislauf eines gefrierdrucklufttrockners oder dgl. | |
DE1912613A1 (de) | Vorrichtung zur selbsttaetigen Regelung von Geblaesen zur zwanglaeufigen Belueftung von Waermetauschern | |
DE10022613A1 (de) | Kondensations-Wäschetrockner mit Wärmepumpe und Zusatz-Widerstandsheizung | |
CH628416A5 (de) | Verfahren und waermepumpe zur uebertragung von waerme. | |
DE4027838A1 (de) | Gastrockner |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RIC1 | Information provided on ipc code assigned before grant |
Free format text: 7D 06F 58/20 A, 7F 25B 29/00 B |
|
17P | Request for examination filed |
Effective date: 20010420 |
|
AKX | Designation fees paid |
Free format text: CH DE IT LI |
|
17Q | First examination report despatched |
Effective date: 20021008 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20030211 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: FRENCH |