EP3117036A1 - Trockner mit spülvorrichtung und flusendepot sowie verfahren zu dessen betrieb - Google Patents
Trockner mit spülvorrichtung und flusendepot sowie verfahren zu dessen betriebInfo
- Publication number
- EP3117036A1 EP3117036A1 EP15707937.7A EP15707937A EP3117036A1 EP 3117036 A1 EP3117036 A1 EP 3117036A1 EP 15707937 A EP15707937 A EP 15707937A EP 3117036 A1 EP3117036 A1 EP 3117036A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lint
- dryer
- sensor
- filter
- depot
- 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 80
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 107
- 230000008569 process Effects 0.000 claims abstract description 58
- 238000001035 drying Methods 0.000 claims abstract description 47
- 238000011049 filling Methods 0.000 claims description 31
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 239000003507 refrigerant Substances 0.000 description 10
- 230000004044 response Effects 0.000 description 9
- 239000012530 fluid Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
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- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 230000000845 anti-microbial effect Effects 0.000 description 2
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- 238000009826 distribution Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- -1 hair Substances 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000007 visual 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
- D06F58/20—General details of domestic laundry dryers
- D06F58/22—Lint collecting arrangements
-
- 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
- D06F2103/38—Time, e.g. duration
-
- 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
- D06F2103/42—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to filters or 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
-
- 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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
-
- 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
Definitions
- the invention relates to a dryer with a flushing device and a Flusendepot.
- the invention relates to a dryer having a drying chamber for laundry items to be dried, a process air duct in which a blower for the conveyance of process air, a heat sink for the cooling of moist warm process air, a heat source for heating process air and a lint filter, a control unit , a liquid sensor, a flushing device and a condensate and / or lint collector (collectively referred to herein as a "catcher"), and a method of operating this dryer.
- dryer used herein is not only used for laundry dryers in the true sense, but also for washer-dryer, so for combination devices, with which a washing of laundry items can be performed.
- flufluff means all impurities that can pass through the moist warm process air from the drying chamber in the process air duct during a drying process with wet laundry and can be deposited in the process air duct or in heat exchangers, etc. In addition to fluff in the actual Meaning other foreign particles such as hair, lime and detergent residues and dust.
- liquid sensor means a sensor that can detect the presence of, in particular, an aqueous liquid
- the liquid sensor is generally a level sensor.
- a dryer in particular in a condensation dryer, air (so-called process air) is passed through a fan via a heater into a drying laundry chamber containing a drum, generally a drum.
- the hot air absorbs moisture from the laundry to be dried.
- the then moist, warm process air is passed into a heat exchanger as a heat sink, where the moist, warm process air condenses out of the water. is cooled.
- the lint filter is generally preceded by a lint filter for filtering lint from the moist, warm process air stream that originates from the laundry items.
- fluff can also be separated from the laundry items in the heat exchanger, in particular finely divided lint, if a lint filter is present which already catches the larger lint.
- Such deposits in the heat exchanger can lead to a reduction in the efficiency of the heat exchanger.
- an internal cleaning of the lint filter of adhering lint is therefore desirable.
- dryers with an internal cleaning device in particular also those with a flushing device, have been developed.
- impurities, especially lint are often collected in a cassette.
- the cassette also referred to herein as "flute depot" fills with lint over time, and when filled with lint, it must generally be emptied.
- EP 1 788 140 A1 and EP 1 788 141 A2 each disclose a dryer for drying laundry by means of an air flow.
- a sieve for filtering lint from the process air stream is arranged in the area of a bearing plate.
- the lint collected on the sieve is stripped off the sieve fabric of the lint filter and stored in a container arranged adjacent to the doctor blade and to the sieve. Since the lint is stored in the dried state, they occupy a relatively large volume.
- the publication DE 10 2010 039 603 A1 describes a laundry treatment device, comprising at least one lint filter, wherein at least one lint filter represents a life-time lint. This is to be avoided as a cost-consuming automatic detection of the filling of a filter chamber, ie a Flusendepots can be avoided.
- a laundry treating appliance is limited in view of the number of practicable drying processes. The recognition of a degree of filling of the lint, in particular a full lint, is therefore generally important.
- the publication WO 2010/028992 A2 describes a dryer, comprising a drying chamber for receiving a moist material and a process air guide for supplying process air into the drying chamber and for discharging process air from the drying chamber, which process air guide a heat source for heating the process air before it enters the drying chamber and a heat sink for cooling the process air after its exit from the drying chamber, and arranged between the drying chamber and the heat sink first lint filter for collecting lint from the process air.
- the first lint filter is associated with a first cleaning device, which comprises a collector for a liquid, a first flushing line connected to the collector, a first control element located in this first flushing line and a first distributor connected to the first flushing line for distributing through the first flushing line delivered liquid to the first lint filter and for receiving intercepted lint from the first lint filter and a first discharge for discharging the liquid with the received lint from the first lint filter to the collector comprises.
- a first cleaning device which comprises a collector for a liquid, a first flushing line connected to the collector, a first control element located in this first flushing line and a first distributor connected to the first flushing line for distributing through the first flushing line delivered liquid to the first lint filter and for receiving intercepted lint from the first lint filter and a first discharge for discharging the liquid with the received lint from the first lint filter to the collector comprises.
- the publication WO 2012/022803 A1 describes a laundry treatment appliance, in particular a tumble dryer, which has a sieve holder for receiving a sieve, wherein the sieve holder is assigned at least one level measuring device for measuring at least one water level at the sieve receiver and wherein the sieve holder with a flood chamber according to the principle the communicating vessels is connected and the at least one level measuring device is arranged and arranged to measure at least one water level of the flood chamber.
- the fluidic connection can be realized by a arranged in the vicinity of a bottom of the flood chamber lower passage opening.
- a plurality of moisture sensors are at least partially disposed in the flood chamber, which respond to different levels of a liquid in the flood chamber.
- Fig. 2 is a lint filter in a cup-shaped sieve, wherein in a bottom side arranged drainage by means of the lint filter purified condensate flows into a collecting tray.
- a sensor arranged in the river depot also referred to herein as a "fall sensor”
- the trap sensor is thus generally located within the more or less lint-contaminated liquid or wet lint mass, although liquid sensors may also be filled in a relatively clean aqueous liquid
- this structure is complex.
- the publication DE 10 2009 047 155 A1 describes a condensate collecting container for a laundry drying appliance, comprising a condensate inlet, wherein the condensate container has a condensate filter with at least one sieve, which is arranged fluidically between the condensate inlet and the condensate drain, and a laundry drying apparatus with such a condensate collecting tank.
- the condensate introduced into the condensate inlet flows essentially completely through the condensate filter before it can be discharged as filtered condensate through the condensate drain.
- the publication DE 100 02 743 A1 describes a heat pump tumble dryer with a arranged in the process air circulation heat exchanger (evaporator), a condensate trap below the heat exchanger and a cleaning device for removing the adhering to the surface of the heat exchanger lint, wherein the dripping from the heat exchanger condensate and the removed fluff is taken up by a removable catch plate of the condensate catcher.
- the cleaning device is designed as a spraying device. In the section of a dryer shown in Fig.
- FIG. 3 is a partial schematic view of Heat exchanger with spray water distribution device and condensate and Sprühigan- catch means shown, the level of the collecting container can be monitored and at a predetermined filling level, a display device emits a signal indicative of the state and the user to empty the collection container.
- the publication DE 10 2008 054 832 A1 describes a device for cleaning a component arranged in a process air cycle of a washer or dryer, wherein condensate separated from the process air passes into a condensate container, from which it flows as a cleaning condensate to the component during a cleaning process , wherein the condensate flows through at least one lint filter on its way to the condensate tank, which is arranged separately from the condensate tank and can be removed.
- the lint filter has a fill level indicator and a trough conveys cleaning condensate from the component into the lint filter.
- the publication DE 43 00 694 C2 describes a clothes dryer with a condensing device and a condensate collecting tank, from which the condensate is fed by means of a pump via a line to a removable receptacle or a surrounding tub, wherein the collecting vessel or the tub on a drain line is connected to the condensate collecting tank and in the drain line a drain delay device is provided.
- a drain delay device is provided.
- the invention thus relates to a dryer with a drying chamber for items to be dried, a process air duct in which a blower for the transport of process air, a heat sink, a heat source and a lint filter, a control unit, a liquid sensor, a flushing device and a collecting device for condensate and / or lint, the collecting device being designed as a lint depot with a filter which is permeable to an aqueous liquid but retaining lint and a trough for receiving the liquid passed through the filter and the trough being associated with at least one level sensor, with which an aqueous liquid which has flowed from the lint depot through the filter into the trough can be detected.
- the heat source serves for heating the process air before it enters the drying chamber and the heat sink for cooling the process air after it has left the drying chamber.
- the process air duct can be open or closed, so that the dryer according to the invention can be an exhaust air dryer or a circulating air dryer.
- the dryer is preferably a circulating air dryer.
- the collecting device for condensate and / or lint is designed as a lint depot with a filter which is permeable to an aqueous liquid but can retain lint.
- the flute depot may be designed as a rigid chamber whose bottom is perforated for the passage of an aqueous liquid.
- a filter material may be a rigid filter material, eg in the form of a filter
- the filter is configured as a sieve or a filter bag, wherein in particular a filled with fluff filter bag for disposal from the dryer or the rigid chamber can be removed.
- the filter may comprise a fabric, for example a fleece.
- the lint can be releasably or permanently connected to the filter.
- the lint depot is generally removable from the dryer. In this way, either the river depot can be emptied as such or a filter bag contained in this can be replaced.
- the filter is also preferably a rigid filter or screen in the last embodiment.
- the filter may also include a filter cloth held by a rigid support.
- the fill level sensor is arranged in the trough.
- the collecting device has a rigid, open-topped container as a flute depot, in the bottom of which and possibly in its side walls a plurality of holes are arranged, through which an aqueous liquid can flow.
- This container may be lined on its inside with a filter fabric.
- the holes then do not serve to retain lint, but in particular a good passage for a purified rinsing liquid, e.g. purified condensate.
- a purified rinsing liquid e.g. purified condensate.
- the holes may be sized so that the container as such exhibits the desired filtering action.
- the lint depot and in particular the filter are preferably at least partially antimicrobial designed to suppress the formation of microorganisms (bacteria, fungi) in the deposited lint.
- the fluff depot and the filter can at least partially have a superficial coating which contains, for example, copper or silver or consists of this. Such a coating is particularly durable and antimicrobial effective.
- the trough is arranged in the dryer below the lint.
- the tub can be arranged for example in the bottom group of the dryer or form the bottom group. This arrangement of the tub below the lint can generally makes it possible for an aqueous Liquid in the river depot can flow through the filter into the trough solely due to the gravitational force.
- the type and shape of the tub are not limited, as long as an aqueous liquid can be collected and then suitably removed from the tub.
- the tub may be designed as a pure receptacle, which can be emptied at a given time, for example, by removing the tub from the dryer. Since the aqueous liquid in the trough is a filtered, relatively clean aqueous liquid, it can be reused in many ways.
- the aqueous liquid filtered through the filter is led out of the trough into a storage container, which is also referred to herein as a "condensate container.”
- the trough is preferably a pipe or hose conduit, which is also referred to herein "Condensate line” is referred to, and generally a pump, which is referred to herein as “condensate pump", connected to the condensate tank.
- Condensate container allows in particular a longer storage of the filtered aqueous liquid, for example, for further use in the dryer the condensate container in the dryer according to the invention, in particular as a reservoir for an aqueous rinsing liquid as a component of a rinsing device.
- the trough is assigned at least one fill level sensor.
- the level sensor is not limited according to the invention, as long as it is possible with him to determine the level of an aqueous liquid.
- the level sensor can be a conductivity sensor or an optical sensor, or have a float arranged in the tub, which is coupled to or has a reed sensor or reed switch.
- the level sensor may be a system of several of these sensors.
- the at least one level sensor is a conductivity sensor and / or an optical sensor.
- a conductivity sensor generally consists of a pair of electrodes, between which an electric field is applied, so that the conductivity of a medium present between the electrodes, for example water, can be measured. Since the conductivity of water is significantly greater than that of air, the presence of water can be determined by measuring the conductivity.
- a first fill level sensor which responds when a first fill level reaches H-1
- a second fill level sensor which responds when a second fill level reaches H 2
- H- ⁇ ⁇ H 2 H- ⁇ ⁇ H 2
- sensor response means that a sensor signal measured by the sensor indicates the presence of an aqueous fluid
- the at least one level sensor allows the time required for a flushing fluid from the flushing device to reach the at least one level sensor to be functional
- the time interval between a response of the first and the second level sensor with respect to the presence of aqueous liquid is measured and with regard to
- degree of filling is to be interpreted practically. According to the invention, it should be possible, in particular, to prevent overflow of the lint depot with liquid.
- a rapid flow of an aqueous liquid should be possible from the Flusendepot so that, for example, a condensate pump operated properly and a condensate tank can be filled as efficiently as possible. Therefore, according to the present invention, a "full" flute depot can be closed and the need for emptying can be indicated when the flute depot is not completely filled with lint but presents a high flow resistance to the aqueous liquid
- a flow depot sensor also referred to as "drop sensor”
- a timing device is provided in the dryer, which makes it possible to measure a time interval between a purge of a dryer component to be cleaned, a sensor signal of the at least one level sensor and / or a sensor signal of the flow depot sensor.
- the rinsing of a dryer component to be cleaned takes place in a surge-like manner by contacting an aqueous liquid as the rinsing liquid with the dryer component to be cleaned in a relatively short period of time.
- the triggering of a rinsing step is preferably assumed.
- control device is designed to measure the time interval measured by a time measuring device between a flushing of a dryer component, a sensor signal of the at least one fill level sensor and / or a sensor signal of the flow depot sensor as a measure of the degree of filling of the flood depot with lint ,
- the time interval At S Fsi between the triggering of a rinsing step with rinsing liquid and the response of the first level sensor in the trough can be used as a measure of the filling level F of the lint store.
- the time interval At S FisF2 between the response of the first level sensor and the response of the second level sensor can be used as a measure of the degree of filling F of the lint store.
- the time interval At F DSFsi between the response of the flow depot sensor and the response of the first level sensor in the tub can be used as a measure of the degree of filling F of the lint.
- At S increases Fsi, At S FisF2 and At F DSFsi with increasing fill level of the lint.
- a connection is stored between At S Fsi, At S FisF2 and / or F At DSFsi and the filling degrees F.
- This relationship can also be defined for different amounts of flushing fluid for this determination in general.
- the determination of the degree of filling can in fact be done within the scope of a rinsing step, in which comparatively much aqueous liquid is used, or in a separate measuring step for determining the degree of filling, in which, if necessary, little aqueous liquid can be used, carried out.
- a counter can be present in the dryer, which counts the drying processes carried out, for example, the drying processes carried out after a final emptying of the lint store.
- the dryer according to the invention also makes it possible in particular to determine the absence of a lint filter and a collecting device in a dryer. In a preferred embodiment of the dryer, therefore, the control device is designed so that when measuring a time interval At ⁇ At min is closed on the absence of the lint filter.
- At min is the time span that a liquid used for cleaning ("rinsing liquid”) from the rinsing device from the initiation of a rinsing step at least needed to reach after passage through an empty lint and possibly a clean lint filter a first level sensor. At min may vary depending on the liquid sensors used for determination.
- control device is designed so that upon detection of reaching a predetermined maximum degree of filling F max of the lint, or in the case of a missing lint or filter, a drying process can no longer be performed and / or a start of a new drying process is suppressed until the lagoons emptied has been.
- the dryer component to be cleaned according to the invention is not limited.
- the heat sink and a lint filter tend to deposit lint.
- the lint depot is arranged below a heat sink to be cleaned (eg an air-air heat exchanger). This eliminates the need for a special channel from the heat exchanger to the lint filter. Instead, the liquid can pass directly from the heat exchanger into the lint filter.
- the heat source and the heat sink are not limited according to the invention.
- the heat source may be an electric heater, a fuel heater (gas, oil) or a condenser of a heat pump.
- the dryer according to the invention also has a heat sink in which the moist, warm process air is cooled to form condensate.
- the heat sink can be, for example, an air-to-air heat exchanger or a heat sink of a heat pump, for example an evaporator. If the heat source is an electric heater or a gas or oil heater, the heat sink is generally an air-to-air heat exchanger. If, on the other hand, a condenser of a heat pump is present as the heat source, the evaporator of the heat pump is used as the heat sink, above all.
- the dryer has a heat pump.
- an internal cleaning of the heat exchanger, in particular the heat sink (evaporator) makes sense, since the components of a heat pump are generally firmly connected to each other, so that the heat exchanger can not be removed for cleaning.
- the heat pump may be a thermoelectric heat pump or, preferably, a compressor-type heat pump.
- the heat sink is therefore preferably the evaporator of a heat pump of the compressor type.
- a heat pump clothes dryer generally has a closed process air cycle and a heat pump cycle (also referred to herein as "refrigerant cycle").
- a heat pump cycle also referred to herein as "refrigerant cycle”
- the cooling of the warm, moisture-laden process air essentially takes place in the heat sink evaporator of the heat pump, where the heat transferred is used to evaporate a refrigerant circulating in the heat pump.
- the vaporized refrigerant reaches the Compressor and from the compressor to the condenser, where it is liquefied with the release of heat.
- the heat released heats the process air.
- the liquefied refrigerant flows through a throttle, where its internal pressure is reduced, back to the evaporator, which closes the circuit.
- the dryer has a display device which can display a user information about the filling of the river storage.
- the display device may in particular be an optical and / or acoustic display device.
- the display device may be configured to indicate to a user the actual degree of filling of the lint depot with lint or merely indicate upon reaching the reaching of a predetermined degree of filling F- ⁇ of the lint, that the lint is to be emptied.
- the visual and / or audible indicator may allow the user of the dryer to view e.g. Allow operating parameters and / or an expected duration of the drying process.
- the dryer according to the invention has a flushing device.
- the rinsing device is generally designed to provide an aqueous liquid for cleaning dryer components to be cleaned.
- this aqueous liquid also referred to herein as "rinsing liquid” in the dryer accumulating condensate, which should be as clean as possible, and / or tap water of an optionally connected external water supply.
- a dryer in which the flushing device comprises a condensate tank which is connected to the tank via a condensate line and a condensate pump.
- the flushing device comprises a condensate tank which is connected to the tank via a condensate line and a condensate pump.
- This allows the provision of filtered condensate as a rinsing liquid.
- the lint filter absorbs the majority of all lint that results from a drying process in the dryer. These fluff as well as the lint from a heat sink go into the rinsing liquid.
- the river depot can catch these lint.
- the rinsed fluff forms a relatively compact wet lump, which can generally be disposed of easily and without dust formation.
- the flushing device allows several dryer components to be flushed with the flushing liquid at the same time or at different times.
- the flushing device generally has different flushing lines, which can be opened and closed with controllable closure devices, generally valves.
- controllable closure devices generally valves.
- rinse liquid dispensers on the dryer components.
- the invention also relates to a method of operating a dryer having a drying chamber for laundry items to be dried, a process air duct containing a blower for conveying process air, a heat sink, a heat source and a lint filter, a control unit, a liquid sensor, a flushing device and a trap for condensate and / or lint, wherein the catcher is configured as a flute depot having a filter that is permeable to an aqueous liquid but retains lint and a sump for holding the liquid left by the filter, and the sump is at least one level sensor with which an aqueous liquid which has flowed from the lint depot through the filter into the trough can be detected, wherein a time measuring device is provided, which allows a time interval between a lavage of a dryer component, a sensor signal of the to measure at least one level sensor and / or a sensor signal of the flow distribution sensor, and wherein the time required by a rinsing
- the time required by a rinsing liquid from the rinsing device until the at least one level sensor is reached is evaluated with regard to a functioning separation of lint, using a time-measuring device provided in the drier which allows measure a time interval between a purging of a dryer component, a sensor signal of the at least one level sensor and / or a sensor signal of a flow depot sensor arranged in the lint depot, and a control device that is designed to measure the time interval between the purging of a dryer component measured by the time-measuring device to evaluate the sensor signal of the at least one fill level sensor and / or the sensor signal of the Flusendepotsensors with regard to a functioning separation of lint.
- a further preferred embodiment of the method makes it possible to determine the absence of the lint filter by concluding the absence of the lint filter when measuring a time interval At ⁇ At min .
- the dryer according to the invention also makes it possible in particular to determine the absence of a collecting device in a dryer.
- the control device is designed so that when measuring a time interval At ⁇ At min can be concluded not only on the absence of a lint filter, but also on the absence of a collecting device for condensate and / or lint.
- At min is the time span that a liquid used for cleaning ("rinsing liquid”) from the rinsing device from the initiation of a rinsing step at least needed to reach after passage through an empty lint and possibly a clean lint filter a first level sensor. At min may vary depending on the liquid sensors used for determination.
- the catcher is not present.
- a missing catching device or a missing lint screen is present if the time interval for the sensor signals between the fall sensor and the first fill level sensor or between the first fill level sensor and the second fill level sensor is too small.
- a method is preferred in which with an aqueous liquid from the flushing device, which comprises a condensate tank, which is connected via a condensate line and a condensate pump with the tub, a dryer component in The process air duct is rinsed and the aqueous liquid passing through the filter into the sump is returned to the condensate tank by means of the condensate pump in the condensate line.
- it is taken into account which time span has elapsed since the execution of a last drying process and the measurement of the degree of filling of the river deposit in order to determine the influence of the moisture content of the lint in the river depot on the evaluation. It can be given advantageously be waited a minimum period of time At set, according to the example on the basis of empirical values, a certain moisture content is present in Flusendepot.
- a dryer is provided by the invention, in which a maintenance case, in particular the need for emptying a lint, in a simple and rapid manner can be determined and displayed.
- a fluff grid is present in the process air duct.
- it can also be determined in the case of a removable flotation depot, if the Flusendepot ever installed.
- An internal cleaning of the dryer is particularly important in heat pump dryers of importance. The invention therefore makes possible in particular an improved operation of a dryer with a heat pump.
- the invention makes it possible to automatically determine the point in time at which the river depot should or should be emptied, and that emptying intervals specified in a user manual need not be complied with.
- the invention also makes it possible in a simple manner to prevent the filter chamber or the filter bag from overflowing by notifying a user of a necessary emptying or cleaning of the fluid depot, or, if such instructions are not followed, further operation of the dryer prior to such cleaning finally is no longer possible. Further details of the invention will become apparent from the following description of an embodiment of a dryer and a method for operating this dryer. Reference is made to FIGS. 1 to 3.g.
- Figure 1 shows a vertical section through a dryer, which according to a preferred embodiment is a heat pump dryer.
- FIG. 2 shows schematically the essential parts of the dryer of Fig. 1 for the present invention.
- FIG. 3 shows the relationship between the time interval of sensor signals at the case sensor and at the first level sensor and the filling of the collecting device for condensate and / or lint, in the event that a trap sensor is present in the dryer.
- Fig. 1 shows a vertical section through a dryer, which is a heat pump dryer according to a first embodiment of the invention, in which the heat source of the condenser 23 and the heat sink of the evaporator 21 of a heat pump 21, 22,23,24 compressor type , The vaporized in the evaporator 21 refrigerant of the heat pump 21, 22,23,24 is passed through the compressor 24 to the condenser 23.
- the drier 1 comprises a drying chamber 2 (washing drum 2) designed as a rotatable drum, which receives moist laundry items 3.
- the dryer 1 has a closed process air duct 4, in which, driven by a fan 5, a process air flow is circulated, which absorbs and removes moisture from the laundry items 3.
- the process air is heated before it enters the drying chamber 2.
- the heated process air flows around the laundry items 3 and / or flows through them, it leaves the drying chamber 2 and passes over a lint filter 12 to the evaporator 21 of the heat pump as a heat sink. There it is cooled, so that the entrained moisture condenses and precipitated as condensate in liquid form on the structures of the evaporator 21 and dripped into a arranged below the evaporator 21 collecting device 6 for lint and condensate.
- the lint filter 12 is cleaned by means of an aqueous liquid (also referred to herein as "rinsing liquid") from a rinsing device 11, 15, which here comprises a condensate container 11 and a lint filter cleaning device 15.
- the flushing device thus comprises a condensate tank 1 1 which is connected to the trough 8 via a condensate line 13 and a condensate pump 14.
- the flushing liquid reaches the lint filter cleaning device 15, which makes the flushing liquid suitably impinge on the lint screen 12 for flushing Subsequently, together with rinsed lint via a flushing water discharge 16 also into the collecting device 6.
- the rinsing liquid is in this case, in particular, collected condensate from preceding drying processes Rm the condensate tank 1 1 is additionally connected via a third controllable closure device 31 and a supply line 32 to an external water supply. This allows the additional or alternative use of tap water as rinse water.
- control unit 18 The control of dryer 1 via a control unit 18, which can be controlled by the user via a control unit, not shown here, which allows the user of the dryer 1 to select from a variety of programs offered a desired for the drying process to be carried out drying program. Moreover, the control unit 18 can control the implementation of the method according to the invention.
- the lint filter 12 generally can not completely absorb the fluff entrained by the process air. A finely divided proportion of lint will pass through the lint filter 12. These finely divided fluff then settle more or less completely in the evaporator 21, wherein the condensate occurring there promotes adhesion to the inner surface of the evaporator 21. These fluff can significantly affect the function of the evaporator 21, so that in particular its efficiency decreases. In addition, it should be noted that because of the required complete sealing of the refrigerant circuit 20, a removal of the evaporator 21 from the dryer 1 for the purpose of cleaning is not possible.
- the evaporator 21 is associated with ateriesenken Whyvorraum 25, which also uses the present in the condensate 1 1 aqueous liquid as a rinsing liquid to rinse the process air exposed surfaces of the evaporator 21 and remove the resulting rivers sen.
- the condensate tank 1 1 is aéessenken Why effet
- valve 29 is connected with a valve 28 arranged therein as a second controllable closure device which connects the condensate tank 1 1 with the heat sink flushing device 25 designed as a distributor.
- the rinsing liquid loaded with lint flows into the lint depot 6.
- a pump may be provided in addition to each valve 27 or 28.
- a single pump could be associated with both valves 27 and 28.
- the aqueous liquid or rinsing liquid can flow through the filter 7 and into a trough 8 arranged below the trough 6 reach.
- the tub 8 is here a bottom tray of the dryer.
- a first fill level sensor 9 which responds upon reaching a first fill level Hi
- a second fill level sensor 10 which responds upon reaching a second fill level H 2 , where H- ⁇ ⁇ H 2 applies, IN ANY - the.
- H- ⁇ ⁇ H 2 applies, IN ANY - the.
- the two level sensors 9 and 10 as well as the Flusendepotsensor 30 are configured in the embodiment shown here as conductivity sensors.
- the dryer 1 has a time measuring device 19, which makes it possible to measure a time interval, ie a period of time, between rinsing a dryer component 12, 21 with a rinsing liquid, sensor signals of the two fill level sensors 9 and 10 and the flow deposit sensor 30.
- control unit 18 is configured such that the time interval measured by the time measuring device 19 between the flushing of the dryer components, here the lint filter 12 and the evaporator 21, and sensor signals of the two fill level sensors 9, 10 and / or a sensor signal of the flow depot sensor 30 as a measure can be used for the degree of filling F of the lint 6.
- the measurement of a single time interval between two of these sensors is sufficient for the measurement of the degree of filling F of the fluid depot 6.
- increased measurement accuracy is obtained when multiple time intervals, i. the time intervals between different sensor pairs are measured.
- control unit 18 is configured such that, when a predetermined maximum filling F max of the cascade depot 6 has been reached, a drying process can no longer be carried out until the cascade depot 6 has been emptied.
- control unit 18 is designed such that when the time interval ⁇ t ⁇ At min is measured, the absence of the lint filter 12 and / or the lint depot 6 with the filter 7 can be concluded.
- the condensate container 1 1 is in the embodiment shown here otherwise configured so that it can be taken out of the dryer 1, in particular after completion of a drying process to pour the liquid out of him and supply it to a suitable disposal or possibly clean it, as a gradual accumulation of extremely finely divided lint or dust in the condensate tank 1 1 can not be excluded.
- a relatively clean aqueous liquid is produced, which is used to clean dryer components in the process air duct 4 or for other purposes, e.g. for ironing, can be used.
- the dried process air in the evaporator 21 is further led to a condenser 23 of the heat pump as a heater and passed from there back into the laundry drum 2.
- An optical / acoustic display device 17 allows the user of the dryer
- the display device 17 also indicates upon reaching the achievement of a predetermined degree of filling F- ⁇ the lint 6, that the creek depot 6 is to be emptied. If a predetermined maximum degree of filling F max is reached, this state is also displayed.
- both the lint filter 12 and the evaporator 21 can be cleaned of lint by being rinsed simultaneously or individually with rinsing liquid from the condensate container 11.
- the rinsing liquid can be, for example, fresh water from a water supply of the drier 1 and / or condensate, which is preferably stored in a condensate container 11 for this purpose. Rinsing can be done, for example, by a rapid emptying when the condensate tank
- I I in the dryer 1 is relatively high.
- the condensate, etc. thus splashes on the lint filter 12 and / or the evaporator 21 and tears the lint present there, etc. with.
- the then lint-laden condensate enters the lint 6 and is separated by the filter 7 of lint.
- the condensate present in the creek deposit 6 thus passes through the filter 7 leaving the lint, etc., and can continue to flow to the condensate pump 14, which can pump the largely lint-free condensate to a drain not shown here or back into the condensate tank 1 1.
- a method according to the invention can be carried out in which the time required by a rinsing liquid from the rinsing device 11, 15 to reach the at least one level sensor 9, 10 is evaluated with regard to a functioning separation of lint.
- a time interval between a flushing of a dryer component 12,21, a sensor signal of the two level sensors 9, 10 and / or a sensor signal of the Flusendepotsensors 30 are measured and then by means of the control unit 18 of the time measuring device 19 measured time interval between the flushing of a dryer component 12,21, the sensor signal of the at least one level sensor 9, 10 and / or the sensor signal of the Flusendepotsensors 30 in view of the degree of filling of the fluid depot 6 are evaluated.
- the control unit 18 of the time measuring device 19 measured time interval between the flushing of a dryer component 12,21, the sensor signal of the at least one level sensor 9, 10 and / or the sensor signal of the Flusendepotsensors 30 in view of the degree of filling of the fluid depot 6 are evaluated.
- the dryer 1 described here allows a method for its operation, in which with an aqueous liquid from the flushing device 1 1, 15, which comprises a condensate tank 1 1, the pump via a condensate line 13 and a condensate pump 14 connected to the tub 8 is, a dryer component 12,21 is rinsed in the process air duct 4 and the passing through the filter 7 in the trough 8 aqueous liquid is conveyed by means of the condensate pump 14 in the condensate line 13 back into the condensate tank 1 1.
- process air is generally circulated repeatedly through the process air duct 4 until preferably a desired degree of drying of the laundry items 3 is achieved.
- FIG. 2 shows schematically the parts of the dryer of FIG. 1 which are essential for the present invention.
- a condensate tank 1 1 Shown here is part of a flushing device, a condensate tank 1 1, which is connected via a condensate line 13 with a trough 8, so that an entering into the tub 8 aqueous liquid can be transported into the condensate tank 1 1.
- the condensate tank 1 1 is also connected via a Flusensieb Congresstechnisch 26 with a lint filter 12 and a farmssenken Introduce admir 29 with the evaporator 21 of a heat pump not shown here in detail.
- the lint filter 12 and the evaporator 21 are thus here to be cleaned dryer components.
- FIG. 3 shows the relationship between the time interval of sensor signals at the case sensor and at the first level sensor (At F DSFsi) and the degree of filling of the collecting device for condensate and / or lint, in the event that a trap sensor is present in the dryer.
- the degree of filling is the number of carried out after emptying the lint drainage drying processes.
- the fluff are arranged on the filter, which separates the collecting device from an underlying trough, in which the first level sensor is arranged. Since the lint is a flow resistance for the aqueous liquid flowing out of the collecting device into the trough, the time interval ⁇ t between the sensor signals of a sensor pair increases with increasing degree of filling of the lint catcher.
- the time interval At FDS Fsi between the response of the flow depot sensor and the response of the first fill level sensor in the trough will also increase as a measure of the fill level F of the lint store.
- heat sink e.g. Evaporator of a heat pump
- heat source e.g. Condenser of a heat pump
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15707937T PL3117036T3 (pl) | 2014-03-10 | 2015-03-03 | Suszarka z urządzeniem do przepłukiwania i zbiornik na kłaczki, oraz sposób jej eksploatacji |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014204298.4A DE102014204298A1 (de) | 2014-03-10 | 2014-03-10 | Trockner mit Spülvorrichtung und Flusendepot sowie Verfahren zu dessen Betrieb |
PCT/EP2015/054449 WO2015135801A1 (de) | 2014-03-10 | 2015-03-03 | Trockner mit spülvorrichtung und flusendepot sowie verfahren zu dessen betrieb |
Publications (2)
Publication Number | Publication Date |
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EP3117036A1 true EP3117036A1 (de) | 2017-01-18 |
EP3117036B1 EP3117036B1 (de) | 2017-12-13 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15707937.7A Active EP3117036B1 (de) | 2014-03-10 | 2015-03-03 | Trockner mit spülvorrichtung und flusendepot sowie verfahren zu dessen betrieb |
Country Status (5)
Country | Link |
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EP (1) | EP3117036B1 (de) |
CN (1) | CN106103833B (de) |
DE (1) | DE102014204298A1 (de) |
PL (1) | PL3117036T3 (de) |
WO (1) | WO2015135801A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020251512A3 (en) * | 2019-06-14 | 2021-01-14 | Arcelik Anonim Sirketi | A washing machine comprising a filtering member |
Families Citing this family (14)
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DE102015223192A1 (de) | 2015-11-24 | 2017-05-24 | BSH Hausgeräte GmbH | Betreiben eines Wäschetrocknungsgeräts mit einem Flusensieb und einer Flusenfalle |
CN106480676B (zh) * | 2016-10-28 | 2019-07-19 | 无锡小天鹅股份有限公司 | 干衣机和用于干衣机的蒸发器组件 |
CN109518405B (zh) * | 2017-09-18 | 2022-07-12 | 佛山海尔滚筒洗衣机有限公司 | 一种洗衣干衣***及其控制方法 |
CN109518409B (zh) * | 2017-09-18 | 2021-12-14 | 青岛海尔洗涤电器有限公司 | 一种衣物洗干一体机及其控制方法 |
CN109518407A (zh) * | 2017-09-18 | 2019-03-26 | 青岛海尔滚筒洗衣机有限公司 | 一种衣物洗干一体机及其控制方法 |
CN109518406B (zh) * | 2017-09-18 | 2021-11-16 | 青岛海尔洗涤电器有限公司 | 一种衣物洗干一体机及其控制方法 |
CN109518408B (zh) * | 2017-09-18 | 2022-05-13 | 青岛海尔洗涤电器有限公司 | 一种衣物洗干一体机及其控制方法 |
CN110055712A (zh) * | 2018-01-18 | 2019-07-26 | 青岛海尔滚筒洗衣机有限公司 | 一种衣物洗干一体机 |
CN110055708A (zh) * | 2018-01-18 | 2019-07-26 | 青岛海尔滚筒洗衣机有限公司 | 一种衣物洗干一体机 |
CN110055710A (zh) * | 2018-01-18 | 2019-07-26 | 青岛海尔滚筒洗衣机有限公司 | 一种衣物洗干一体机 |
WO2019141083A1 (zh) * | 2018-01-18 | 2019-07-25 | 青岛海尔滚筒洗衣机有限公司 | 一种冷凝装置及具有其的衣物洗干一体机 |
WO2019141065A1 (zh) * | 2018-01-18 | 2019-07-25 | 青岛海尔滚筒洗衣机有限公司 | 一种衣物洗干一体机 |
CN110055709A (zh) * | 2018-01-18 | 2019-07-26 | 青岛海尔滚筒洗衣机有限公司 | 一种衣物洗干一体机 |
JP7207649B2 (ja) * | 2018-11-19 | 2023-01-18 | 青島海爾洗衣机有限公司 | 洗濯乾燥機 |
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DE3930727A1 (de) * | 1989-09-14 | 1991-03-28 | Miele & Cie | Anordnung und verfahren zur verschmutzungsgradueberwachung und -anzeige eines flusenfilters und/oder waermetauschers in einem waeschetrockner |
DE4300694C2 (de) * | 1993-01-13 | 2000-02-10 | Bsh Bosch Siemens Hausgeraete | Wäschetrockner mit einer Kondensationseinrichtung |
DE10002743B4 (de) * | 2000-01-22 | 2006-01-12 | Whirlpool Corp., Benton Harbor | Wärmepumpen-Wäschetrockner mit Reinigungseinrichtung für den Wärmetauscher |
DE10244242A1 (de) * | 2002-09-24 | 2004-03-25 | Aweco Appliance Systems Gmbh & Co. Kg | Haushaltsmaschine |
DE10314892A1 (de) * | 2003-04-01 | 2004-10-14 | Electrolux Home Products Corporation N.V. | Verfahren zur Erkennung der Beladung eines Siebsystems einer Geschirrspülmaschine |
DE102004055941B4 (de) * | 2004-11-19 | 2017-05-11 | BSH Hausgeräte GmbH | Kondensations-Wäschetrockner |
DE102005054683A1 (de) | 2005-11-16 | 2007-05-24 | BSH Bosch und Siemens Hausgeräte GmbH | Vorrichtung zum Trocknen von Wäsche mittels eines Luftstroms |
DE102005054681A1 (de) | 2005-11-16 | 2007-05-24 | BSH Bosch und Siemens Hausgeräte GmbH | Hausgerät mit einer linear bewegbaren Komponente |
DE102008041998A1 (de) | 2008-09-11 | 2010-03-18 | BSH Bosch und Siemens Hausgeräte GmbH | Trockner mit einem Flusenfilter und einer Reinigungsvorrichtung |
DE102008054832A1 (de) * | 2008-12-17 | 2010-07-01 | BSH Bosch und Siemens Hausgeräte GmbH | Vorrichtung und Verfahren zum Reinigen eines in einem Prozess-luftkreislauf eines Wasch- oder Wäschetrockners angeordneten Bauteils |
DE102009047155A1 (de) | 2009-11-26 | 2011-06-01 | BSH Bosch und Siemens Hausgeräte GmbH | Kondensatsammelbehälter für ein Wäschetrocknungsgerät und Wäschetrocknungsgerät mit einem Kondensatsammelbehälter |
DE102010039552A1 (de) | 2010-08-20 | 2012-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | Wäschebehandlungsgerät mit Siebaufnahme und Verfahren zum Betreiben eines Wäschebehandlungsgeräts mit einem Flusensieb |
DE102010039603A1 (de) | 2010-08-20 | 2012-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | Wäschebehandlungsgerät mit Flusenfilter |
-
2014
- 2014-03-10 DE DE102014204298.4A patent/DE102014204298A1/de not_active Withdrawn
-
2015
- 2015-03-03 PL PL15707937T patent/PL3117036T3/pl unknown
- 2015-03-03 EP EP15707937.7A patent/EP3117036B1/de active Active
- 2015-03-03 CN CN201580013151.3A patent/CN106103833B/zh active Active
- 2015-03-03 WO PCT/EP2015/054449 patent/WO2015135801A1/de active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020251512A3 (en) * | 2019-06-14 | 2021-01-14 | Arcelik Anonim Sirketi | A washing machine comprising a filtering member |
Also Published As
Publication number | Publication date |
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EP3117036B1 (de) | 2017-12-13 |
CN106103833B (zh) | 2018-04-06 |
PL3117036T3 (pl) | 2018-05-30 |
WO2015135801A1 (de) | 2015-09-17 |
CN106103833A (zh) | 2016-11-09 |
DE102014204298A1 (de) | 2015-09-10 |
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