EP2326761A2 - Kondensationstrockner mit einer wärmepumpe und erkennung eines unzulässigen betriebszustands sowie verfahren zu seinem betrieb - Google Patents
Kondensationstrockner mit einer wärmepumpe und erkennung eines unzulässigen betriebszustands sowie verfahren zu seinem betriebInfo
- Publication number
- EP2326761A2 EP2326761A2 EP09781323A EP09781323A EP2326761A2 EP 2326761 A2 EP2326761 A2 EP 2326761A2 EP 09781323 A EP09781323 A EP 09781323A EP 09781323 A EP09781323 A EP 09781323A EP 2326761 A2 EP2326761 A2 EP 2326761A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressor
- controller
- heat pump
- refrigerant
- lιm1
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 89
- 238000009833 condensation Methods 0.000 title claims abstract description 57
- 230000005494 condensation Effects 0.000 title claims abstract description 57
- 238000001035 drying Methods 0.000 claims abstract description 28
- 239000003507 refrigerant Substances 0.000 claims description 58
- 238000001816 cooling Methods 0.000 claims description 26
- 230000000007 visual effect Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 abstract 3
- 101100074792 Danio rerio lhx1a gene Proteins 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 description 10
- 230000007423 decrease Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MCSXGCZMEPXKIW-UHFFFAOYSA-N 3-hydroxy-4-[(4-methyl-2-nitrophenyl)diazenyl]-N-(3-nitrophenyl)naphthalene-2-carboxamide Chemical compound Cc1ccc(N=Nc2c(O)c(cc3ccccc23)C(=O)Nc2cccc(c2)[N+]([O-])=O)c(c1)[N+]([O-])=O MCSXGCZMEPXKIW-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/50—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to heat pumps, e.g. pressure or flow rate
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/26—Heat pumps
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/50—Starting machine operation, e.g. delayed start or re-start after power cut
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/58—Indications or alarms to the control system or to the user
-
- 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
Definitions
- the invention relates to a condensation dryer with a drying chamber for the objects to be dried, a process air circuit, a first blower in
- Evaporator a compressor, a condenser and a throttle, as well as a
- Temperature sensor for measuring a temperature of the refrigerant, and a controller, and a preferred method for its operation.
- a condensation dryer air (so-called process air) is passed through a fan via a heater in a wet laundry containing drum as a drying chamber.
- the hot air absorbs moisture from the laundry to be dried.
- the then moist process air is passed into a heat exchanger, which is usually preceded by a lint filter.
- a heat exchanger e.g., air-to-air heat exchanger or heat sink of a heat pump
- the moist process air is cooled so that the water contained in the wet process air condenses.
- the condensed water is then generally collected in a suitable container and the cooled and dried air is returned to the heater (which may be the heat source of a heat pump, if desired) and then to the drum.
- this drying process is very energy-intensive, since the cooling air flow heated in the heat exchanger during the cooling of the process air can be energetically lost to the process.
- a heat pump By using a heat pump, this energy loss can be significantly reduced.
- the cooling of the warm, moisture-laden process air essentially takes place in a heat sink of the heat pump, where the heat withdrawn from the process air is evaporated, for example, to vaporize a process air Heat pump cycle used refrigerant is used.
- the heat absorbed in the heat sink is transported within the heat pump to the heat source and there - optionally at opposite the temperature at the heat sink elevated temperature - discharged again.
- a heat pump which operates with a refrigerant as a heat transfer medium, wherein the refrigerant is evaporated in the heat sink and liquefied in the heat source
- the vaporized gaseous refrigerant passes through a compressor to the heat source, which can be referred to here as a condenser, where due Condensation of the gaseous refrigerant heat is released, which is used to heat the process air before entering the drum.
- the liquefied refrigerant eventually flows through a throttle back to the evaporator; the throttle is used to reduce the internal pressure in the refrigerant, so that it can evaporate in the evaporator with renewed absorption of heat.
- the heat pump which is thus operated with a circulating refrigerant, is also known as a "compressor heat pump.” Other types of heat pump are also known.
- DE 40 23 000 C2 discloses a clothes dryer with a heat pump circuit in which a supply air opening is arranged in the process air channel between the condenser and the evaporator, which can be closed with a controllable closure device.
- WO 2008/086933 A1 describes a condensation dryer with a drying chamber, a process air circuit with a heater for heating the process air and a blower, an air-air heat exchanger and a heat pump circuit with an evaporator, a compressor and a condenser.
- the heat pump circuit is located between condenser and evaporator, an additional heat exchanger, which is operatively coupled to the air-to-air heat exchanger.
- the temperature of the refrigerant of the heat pump, in particular in the condenser is kept within the permissible range via the control of heat pump and additional heat exchanger.
- DE 40 34 274 A1 describes a tumble dryer and a method for monitoring the temperature of a tumble dryer, wherein the tumble dryer connected to a heater for air and for detecting the temperature of the air flow provided thermostatic device, which is set up for switching off the heater in case of exceeding a temperature upper value and for reconnection of the heater falls below a temperature undershoot, and connected to the thermostat means monitoring circuit to generate a signal dependent on the shutdown signal for a display unit.
- the monitoring circuit has a counter circuit for counting the shutdowns of the heater during a drying process, the counter circuit being connected to the display unit.
- a decoder circuit may generate an error signal when a certain number of shutdowns have occurred.
- the heater of the tumble dryer is turned off when the number of times the heater is turned off exceeds a reference value and at the same time drives a display unit through which a user can recognize or hear that he must clean the lint filter and / or the condenser or the blower has failed ,
- DE 197 28 197 A1 discloses a method for detecting impermissible operating states in a tumble dryer and a tumble dryer with such a detection method. With the method, it should be possible to separately or collectively detect different operating conditions of too high temperature, which originate from different areas. For this the temperature in the
- a compressor heat pump usually works optimally in certain temperature ranges in the evaporator and in the condenser.
- the problem with the use of a compressor heat pump in the condensation dryer is usually the high temperature in the condenser, which can lead to process-related that the refrigerant can no longer or not completely liquefied; then the compressor must be switched off and / or a significantly deteriorated effect of the heat pump can be accepted.
- an impermissible operating state for example a reduced circulation of the process air (air power reduction) is determined by detecting a temperature in the process air stream above a heater for the process air and in front of the drying chamber at regular intervals and in each case from two consecutively detected values a difference value is formed, which corresponds to a temporal gradient.
- This information generally need not be available in this form for a dryer equipped with a heat pump (heat pump dryer).
- heat pump dryer the heat pump is often farther from the drying chamber than the heater in a conventional condensation dryer.
- the detection of an impermissible operating state in a condensation dryer, which is equipped with a heat pump in this way only inaccurately possible.
- the object of the invention was therefore to provide a condensation dryer with a heat pump and a method for its operation, in which an inadmissible operating state can be detected in a simple manner.
- the invention thus relates to a condensation dryer with a drying chamber for the objects to be dried, a process air circuit, a first fan in the process air circuit, a heat pump in which a refrigerant circulates, with an evaporator, a compressor, a condenser and a throttle, and a temperature sensor for measuring a temperature of the refrigerant and a controller, wherein the controller comprises first means for comparing a temperature T ⁇ of the refrigerant with an upper limit temperature T ⁇ l ⁇ m1 stored for the refrigerant in the controller; second means for switching off the compressor when T ⁇ is greater than or equal to T ⁇ l ⁇ m1 , and for switching on the compressor each time after switching off; a counting device for detecting a number n of cases in which the compressor is turned off, which counting device is incremented by 1 in each case of turning off; and third means for comparing the number n with a preset limit number n hm stored in the controller and for evaluating the difference ⁇ n
- inadmissible operating state is to be interpreted broadly, meaning any operating state which may lead to impairment of a drying process and / or damage to the condensation dryer.
- the second means are set up for switching on the compressor only after expiration of a delay period .DELTA.t v each after a shutdown.
- the delay period .DELTA.t v is greater than a period of time within which each after a shutdown of the compressor Pressure equalization occurs within the heat pump.
- Pressure equalization requires a time of about one minute; During this time, pressure differences build up, which are built up by the effects of the compressor and the throttle in the refrigerant between the condenser and the evaporator, wherein the refrigerant is expanded in the condenser, so that in particular its temperature decreases.
- the delay period ⁇ t v has a length of about three minutes.
- the second means are arranged such that At is v first determined after a shutdown of the compressor at the expiration of a delay period if T is ⁇ is greater than or equal to T ⁇ l ⁇ m1 that the compressor is only turned on again, if T ⁇ is smaller than T ⁇ l ⁇ m1 , and that the counter is incremented by 1 and the re-switching of the compressor for a further delay period .DELTA.t v omitted if T ⁇ is greater than or equal to T ⁇ l ⁇ m1 .
- the temperature sensor is located at the outlet of the condenser or at the outlet of the compressor.
- an additional heat exchanger is arranged in the heat pump in the condensation dryer according to the invention.
- the additional heat exchanger is arranged in a process air channel between the evaporator and the condenser.
- the additional heat exchanger is arranged in a cooling air duct, wherein in this cooling air duct, an air-air heat exchanger may be present.
- the condensation dryer according to the invention preferably comprises a second fan for cooling the heat pump.
- the second blower is preferably arranged in a cooling air duct and / or the surroundings of the compressor.
- the condensation dryer according to the invention preferably has an acoustic and / or visual display means for indicating an impermissible operating state.
- An optical display means may be, for example, a liquid crystal display on which certain prompts or hints are given. It may also or alternatively light LEDs in one or more colors light up.
- the type of display of an impermissible operating state may depend on the type of impermissible operating state.
- a request to clean the air passages in the condensation dryer could be indicated on a liquid crystal display.
- a light-emitting diode for example in a yellow-red color, could light up.
- a second impermissible operating state which is generally critical, for example, an indication that the drying process has been interrupted, the refrigerant circuit checked and / or a service technician to turn on, could be indicated on a liquid crystal display.
- a light-emitting diode for example in a deep red color, could light up.
- the display could also be made via an acoustic display, with different impermissible operating states could be displayed by different beeps.
- the heating of the process air can only take place via the condenser of the heat pump. However, it can also be used in addition to an electric heater.
- a further heater is used in the condensation dryer according to the invention, this is preferably a two-stage heater.
- the Control of this heater is also used in a preferred embodiment of the invention for controlling the temperature of the refrigerant.
- the invention also relates to a method of operating a condensation dryer with a drying chamber for the objects to be dried, a process air circuit, a first fan in the process air circuit, a heat pump in which a refrigerant circulates, with an evaporator, a compressor, a condenser and a throttle, and a temperature sensor for measuring a temperature of the refrigerant, and a controller, wherein the controller includes first means for comparing a temperature T ⁇ of the refrigerant with an upper limit temperature T ⁇ l ⁇ m1 stored for the refrigerant in the controller; second means for switching off the compressor when T ⁇ is greater than or equal to T ⁇ l ⁇ m1 , and for switching on the compressor each time after switching off; a counting device for detecting a number n of cases in which the compressor is turned off, which counting device is incremented by 1 in each case of turning off; and third means for comparing the number n with a preset limit number n hm stored in the controller and for
- the second means switches on the compressor only after a delay period ⁇ t v has elapsed, in each case after a switch-off.
- the second means (27) determine the expiration of each delay period .DELTA.t v after a shutdown of the compressor (14) first determines whether T ⁇ ⁇ is greater than or equal to T is l ⁇ m1, after which the compressor (14) only switch on again when T ⁇ is smaller than T ⁇ l ⁇ m1 , and then the counter is incremented by 1 and the re-switching of the compressor for a further delay period .DELTA.t v omitted if T ⁇ is greater than or equal to T ⁇ l ⁇ m1 .
- a first impermissible operating state is displayed for the case ⁇ n greater than or equal to n 1 , where n 1 is a predetermined value stored in the control.
- the display of a first impermissible operating state may include the request to clean the air passages in the condenser dryer. It is further preferred that, for the case ⁇ n greater than or equal to n 2 , where n 2 is a predetermined value stored in the control, a second inadmissible operating state is displayed. In addition to the display of a second impermissible operating state, an ongoing drying process can be interrupted.
- a cooling device for the heat pump may be used, which preferably comprises a second fan.
- the second blower can be used directly for cooling components of the heat pump, in particular the compressor.
- the second fan and an additional heat exchanger are arranged in a cooling air passage, wherein the additional heat exchanger is located in the heat pump.
- the cooling air duct may still be another air-to-air heat exchanger.
- the possibly present air-air heat exchanger is removable. This is particularly advantageous because a removable heat exchanger can be cleaned more easily from lint.
- process air and cooling air or process air and refrigerant in the heat pump are each passed through the corresponding heat exchangers in a crossflow or countercurrent process.
- the refrigerant used in the heat pump cycle is preferably selected from the group comprising propane, carbon dioxide and fluorinated hydrocarbon compounds.
- a refrigerant from the group comprising the known compounds or mixtures R 134a, R152a, R407C and R410A is used.
- a throttle also referred to as expansion valve or throttle valve on.
- the throttle may in particular be a valve, a capillary or a diaphragm.
- the temperature of the refrigerant of the heat pump, in particular in the condenser, according to the invention is generally kept within the permissible range via the control of the heat pump and possibly an additional heat exchanger. If there is additional heating in the process air cycle before entering the drying chamber in the condensation dryer according to the invention, the control of the heat pump is preferably carried out in coordination with the control of the heating. As the degree of drying of the objects to be dried in the condenser dryer decreases the energy required for drying, it is appropriate to regulate the heating accordingly, ie to reduce its heat output as the degree of drying progresses, to maintain a balance between the supplied and the necessary drying energy ,
- FIGS. 1 to 5 Further details of the invention will become apparent from the following description of non-limiting embodiments of the condensation dryer according to the invention and a method using this condensation dryer. Reference is made to FIGS. 1 to 5.
- Fig. 1 shows a vertical section through a condensation dryer according to a first embodiment
- Fig. 2 shows a schematic representation of the process air circuit and the heat pump for the first embodiment shown in Figure 1;
- Fig. 3 shows a vertical section through a condensation dryer according to a second embodiment, in which an additional heater and an additional air-to-air heat exchanger are used;
- FIG. 4 shows a schematic representation of the process air circuit and the heat pump for the second embodiment shown in FIG. 3;
- FIG. 5 shows a schematic representation of the process air circuit and the heat pump for a third embodiment.
- FIG. 1 shows a vertically sectioned condensation dryer (abbreviated hereafter to "dryer”) according to a first embodiment of the invention, in which the heating of the process air takes place exclusively via the condenser of the heat pump.
- dryer vertically sectioned condensation dryer
- the dryer 1 shown in FIG. 1 has a drum rotatable about a horizontal axis as a drying chamber 3, inside which drivers 4 are fastened for moving laundry during a drum rotation.
- Process air is conducted by means of a first blower 19 through a drum 3 and a heat pump 13, 14, 15, 17 in an air duct 2 in a closed circuit (process air circuit 2).
- the heated in a condenser 15 of the heat pump 13,14,15,17 process air is cooled after passing through the drum 3 and moisture absorption and heated again by the condenser 15 after condensation of the moisture contained in the process air. This heated air from the rear, i.
- the refrigerant liquefies with heat being released to the process air.
- the now present in liquid form refrigerant is then passed to an additional heat exchanger 16, which is located together with a second fan 20 in a cooling air duct 12, and from there via a throttle valve 17 in turn to the evaporator 13, whereby the refrigerant circuit is closed.
- the cooling air is taken from the room air and returned to the room air after heat exchange.
- the drum 3 is mounted in the embodiment shown in Fig. 1 at the rear bottom by means of a pivot bearing and front by means of a bearing plate 7, the drum 3 rests with a brim on a sliding strip 8 on the bearing plate 7 and so on the front End is held.
- the control of the condensation dryer via a controller 10, which can be controlled by the user via an operating unit 9.
- a temperature sensor 22 is disposed at the outputs 23 and 24 respectively.
- An optical display means 25 serves to indicate an impermissible operating state, wherein different colors can indicate different impermissible operating states.
- This delay period .DELTA.t v is in particular greater than a period of time, enters a pressure compensation inside the heat pump 13,14,15,17 within which in each case after a shutdown of the compressor fourteenth
- Such pressure equalization requires a time of about one minute; In this time, pressure differences build up, which are built up by the effects of the compressor 14 and the throttle 17 between the condenser 15 and the evaporator 13, wherein the refrigerant is expanded in the condenser 15, so that in particular its temperature decreases.
- the delay period ⁇ t v has a length of about three minutes.
- the second means 27 are arranged such that after expiry of a delay period .DELTA.t v after switching off the compressor 14 is first determined whether T ⁇ is greater than or equal to T ⁇ l ⁇ m1 , after which the compressor 14 is only turned on again when T ⁇ is smaller than T ⁇ l ⁇ m1 , and then the counter 28 is incremented by 1 and the re-switching of the compressor 14 for a further delay period .DELTA.t v omitted if T ⁇ is greater than or equal to T ⁇ l ⁇ m1 .
- Figure 2 shows a schematic representation of the process air circuit and the heat pump for the first embodiment shown in Fig. 1. While the process air in the closed process air circuit 2 and the refrigerant in the closed circuit of the heat pump 13,14,15,17 out, the air used by the second blower 20 for cooling in the additional heat exchanger 16 of the room air is removed and after passing through the additional heat exchanger 16 fed back to the room air.
- drying shows a vertically sectioned condensation dryer (hereinafter abbreviated to "dryer") according to a second embodiment, in which an additional heat exchanger is located both in the heat pump and in the cooling air duct of an air-to-air heat exchanger. 3 embodiment uses an additional heater.
- the dryer 1 shown in FIG. 3 has a drum rotatable about a horizontal axis as a drying chamber 3, inside which drivers 4 are fastened for moving laundry during a drum rotation.
- Process air is conveyed by means of a first blower 19 via a heater 18, through a drum 3, an air-to-air Heat exchanger 11, 12 and a heat pump 13,14,15,17 out in an air channel 2 in a closed circuit (process air circuit 2).
- process air circuit 2 After passage through the drum 3, the moist, warm process air is cooled and reheated after condensation of moisture contained in the process air.
- the now present in liquid refrigerant is then fed to an additional heat exchanger 16, which is located in the cooling air passage 12 of the air-to-air heat exchanger 1 1, 12 between this and a second blower 20, and from there via a throttle valve 17 in turn to the evaporator 13, whereby the refrigerant circuit is closed.
- the cooling air is taken from the room air and, after passing through the air-to-air heat exchanger 1 1, 12 again supplied to the room air.
- the drum 3 is mounted in the embodiment shown in Fig. 3 at the rear bottom by means of a pivot bearing and front by means of a bearing plate 7, wherein the drum 3 rests with a brim on a sliding strip 8 on the bearing plate 7 and is held at the front end.
- the control of the condensation dryer via a controller 10, which can be controlled by the user via an operating unit 9.
- a temperature sensor 22 is disposed at the outputs 23 and 24 respectively.
- An optical display means 25 serves to indicate an impermissible operating state.
- Figure 4 shows a schematic representation of the process air circuit and the heat pump for the second embodiment shown in Fig. 3. While the process air in the closed process air circuit 2 and the refrigerant in the closed circuit of
- Heat pump 13,14,15 is performed, which is used for cooling in the air-to-air heat exchanger
- Fig. 5 shows a schematic representation of the process air circuit and the heat pump for a third embodiment.
- the additional heat exchanger 16 in the cooling air channel 12 on the air-to-air heat exchanger 1 1, 12 opposite side of the second blower 20 is arranged.
- the heat exchanger 16 is thus in the intake of the cooling air.
- the invention has the advantage that the operation of a condensation dryer can be monitored in a simple and effective manner. Impermissible operating states can be displayed safely, so that suitable countermeasures can be taken.
- the heat pump and in particular its condenser can operate in an optimum temperature range. This allows the operation of the condensation dryer with a particularly favorable energy balance. In addition, the heat pump is spared. In any case, the detection of an impermissible operating state is possible in a simple manner in such a condensation dryer; It can thus be easily and promptly remedied or prevented operation under critical conditions.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Drying Of Solid Materials (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09781323T PL2326761T3 (pl) | 2008-08-06 | 2009-07-31 | Suszarka kondensacyjna z pompą cieplną i wykrywaniem niedopuszczalnego stanu roboczego oraz sposób jej eksploatacji |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008041019A DE102008041019A1 (de) | 2008-08-06 | 2008-08-06 | Kondensationstrockner mit einer Wärmepumpe und Erkennung eines unzulässigen Betriebszustands sowie Verfahren zu seinem Betrieb |
PCT/EP2009/059915 WO2010015570A2 (de) | 2008-08-06 | 2009-07-31 | Kondensationstrockner mit einer wärmepumpe und erkennung eines unzulässigen betriebszustands sowie verfahren zu seinem betrieb |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2326761A2 true EP2326761A2 (de) | 2011-06-01 |
EP2326761B1 EP2326761B1 (de) | 2013-03-06 |
Family
ID=41165243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09781323A Active EP2326761B1 (de) | 2008-08-06 | 2009-07-31 | Kondensationstrockner mit einer wärmepumpe und erkennung eines unzulässigen betriebszustands sowie verfahren zu seinem betrieb |
Country Status (6)
Country | Link |
---|---|
US (1) | US8418378B2 (de) |
EP (1) | EP2326761B1 (de) |
CN (1) | CN102119244B (de) |
DE (1) | DE102008041019A1 (de) |
PL (1) | PL2326761T3 (de) |
WO (1) | WO2010015570A2 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006061737B3 (de) * | 2006-12-28 | 2008-04-24 | BSH Bosch und Siemens Hausgeräte GmbH | Kondensationstrockner mit einer Wärmepumpe sowie Verfahren zu seinem Betrieb |
DE102008040946A1 (de) * | 2008-08-01 | 2010-02-04 | BSH Bosch und Siemens Hausgeräte GmbH | Kondensationstrockner mit einer Wärmepumpe und Erkennung eines unzulässigen Betriebszustands sowie Verfahren zu seinem Betrieb |
DE102008041019A1 (de) * | 2008-08-06 | 2010-02-11 | BSH Bosch und Siemens Hausgeräte GmbH | Kondensationstrockner mit einer Wärmepumpe und Erkennung eines unzulässigen Betriebszustands sowie Verfahren zu seinem Betrieb |
EP2576889B1 (de) * | 2010-06-04 | 2014-04-30 | Arçelik Anonim Sirketi | Energiesparende thermoelektrischer wärmepumpenwäschetrockner |
EP2455526A1 (de) * | 2010-11-17 | 2012-05-23 | BSH Bosch und Siemens Hausgeräte GmbH | Maschine mit Wärmepumpe und zugehörigen Verfahren |
DK2333149T3 (da) * | 2010-11-22 | 2014-01-06 | V Zug Ag | Tørretumbler med omgivelsestemperatursensor |
EP2655726B1 (de) * | 2010-12-24 | 2015-10-14 | Arçelik Anonim Sirketi | Wärmepumpenwäschetrockner |
DE102011079449A1 (de) | 2011-07-20 | 2013-01-24 | BSH Bosch und Siemens Hausgeräte GmbH | Verfahren zum Betreiben eines Wärmepumpentrockners |
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-
2008
- 2008-08-06 DE DE102008041019A patent/DE102008041019A1/de not_active Withdrawn
-
2009
- 2009-07-31 EP EP09781323A patent/EP2326761B1/de active Active
- 2009-07-31 WO PCT/EP2009/059915 patent/WO2010015570A2/de active Application Filing
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- 2009-07-31 PL PL09781323T patent/PL2326761T3/pl unknown
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Non-Patent Citations (1)
Title |
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See references of WO2010015570A2 * |
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WO2010015570A2 (de) | 2010-02-11 |
PL2326761T3 (pl) | 2013-08-30 |
US20110173838A1 (en) | 2011-07-21 |
CN102119244A (zh) | 2011-07-06 |
DE102008041019A1 (de) | 2010-02-11 |
CN102119244B (zh) | 2012-09-12 |
US8418378B2 (en) | 2013-04-16 |
EP2326761B1 (de) | 2013-03-06 |
WO2010015570A3 (de) | 2010-06-10 |
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