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WO2008014924A1 - Processus pour commander une unité à vapeur d'un appareil ménager - Google Patents

Processus pour commander une unité à vapeur d'un appareil ménager Download PDF

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Publication number
WO2008014924A1
WO2008014924A1 PCT/EP2007/006641 EP2007006641W WO2008014924A1 WO 2008014924 A1 WO2008014924 A1 WO 2008014924A1 EP 2007006641 W EP2007006641 W EP 2007006641W WO 2008014924 A1 WO2008014924 A1 WO 2008014924A1
Authority
WO
WIPO (PCT)
Prior art keywords
given
water
steam
volume flow
steam generator
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.)
Ceased
Application number
PCT/EP2007/006641
Other languages
English (en)
Inventor
Hans-Joachim Klug
Uta Kreutzfeldt
Johannes Sierl
Thomas Loy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Publication of WO2008014924A1 publication Critical patent/WO2008014924A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs
    • F22B1/285—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs the water being fed by a pump to the reservoirs
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • 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
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/44—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of conditioning or finishing, e.g. for smoothing or removing creases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00—Control systems for steam boilers
    • F22B35/18—Applications of computers to steam-boiler control
    • 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
    • D06F2105/02—Water supply
    • 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
    • D06F2105/10—Temperature of washing liquids; Heating means therefor
    • 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
    • D06F2105/38—Conditioning or finishing, e.g. control of perfume injection
    • D06F2105/40—Conditioning or finishing, e.g. control of perfume injection using water or steam
    • 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
    • D06F2105/60—Audible signals
    • 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
    • D06F2105/62—Stopping or disabling machine operation
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/40—Steam generating 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/203—Laundry conditioning arrangements

Definitions

  • the invention relates to a process to control a steam unit of a domestic appliance, especially of a dryer for textiles or of a washing machine.
  • This steam unit usually is arranged within the domestic appliance.
  • the steam unit at least comprises a steam generator.
  • To produce steam the steam generator needs water.
  • this water is supplied from a water reservoir by means of a pump. Therefore this pump usually is a component of the steam unit.
  • this pump By means of this pump the water volume flow into the steam generator can be controlled.
  • different ways of controlling the water volume flow are possible, e.g. by means of controllable valves.
  • the supplied water is evaporated to produce the steam.
  • This steam produced by the steam generator generally is supplied via a steam tube to an outlet nozzle into the treatment area of the domestic appliance.
  • a problem of steam generators in operation is that the produced steam usually contains some waterdrops. During treatment of textiles with this steam this waterdrops get in contact with the textiles and may cause undesirable stains.
  • steam produced by steam generators usually is a steam with varying properties, e.g. temperature and steam volume flow. This might cause damage to sensitive textiles.
  • a further problem is that that the intended steam treatment of the textiles might not proceed because of faults within the steam system, e.g. leaky tubes in the water supply system. This might damage the textiles and/or the domestic appliance seriously.
  • a process which leads to an improved steam production of the steam generator is desired, especially a process which produces a steam which is free of waterdrops or at least contains less waterdrops and which has at least almost continuous properties, e.g. temperature and/or steam volume flow.
  • a process is desired which allows to detect faults within the steam system, e.g. an inadequate or intermitted water supply, and to respond to these faults.
  • the invention relates to a process to control a steam unit of a domestic appliance.
  • This steam unit produces water steam, especially hot or superheated water steam, which is fed to a treatment area, especially to a drum.
  • this steam unit comprises at least one steam generator with a heating element and water supply means to supply water to the steam generator.
  • the process is characterized in that the temperature of the steam generator, especially the surface temperature of the steam generator and/or the temperature of the heating element of the steam generator, and/or the temperature of the water steam is measured, and in a normal operation the heating element of the steam generator and/or the water supply means are controlled in such a way that the measured temperature is kept between a given lower temperature limit and a given upper temperature limit.
  • This process enables a steam production which produces a steam which is free of waterdrops or at least contains less waterdrops and which has at least almost continuous properties, especially a nearly continuous temperature and/or a nearly continuous steam volume flow. Therefore non or at least less waterdrops come into contact with the steam treated textiles. Accordingly non or at least less undesirable stains are caused.
  • the invention suggests that the heating element of the steam generator and/or the water supply means are controlled in such a way that the measured temperature oscillates between the given lower temperature limit and the given upper temperature limit.
  • the process can include a start operation.
  • start operation the heating element of the steam generator and/or the water supply means are controlled in such a way that the measured temperature reaches the temperature range between the given lower temperature limit and the given upper temperature limit.
  • the start operation is followed by the normal operation.
  • the heating element of the steam generator is switched on and the water supply means are switched off, and in a second phase which starts when the given first temperature is reached the heating element of the steam generator is switched on and the water supply means supply a given water volume flow to the steam generator, whereby the given water volume flow is a fixed first water volume flow or a volume flow which varies according to the measured temperature in a given first relation.
  • the suggested process is characterized in that in the normal operation in a first phase which starts when the given lower temperature limit is reached and lasts till the given upper temperature is reached the heating element of the steam generator is switched on and the water supply means supply a given water volume flow to the steam generator, whereby the given water volume flow is a fixed second water volume flow or a volume flow which varies according to the measured temperature in a given second relation.
  • the heating element of the steam generator is switched off or reduced compared to the first phase of the normal operation and the water supply means supply a given water volume flow to the steam generator, whereby the given water volume flow is a fixed third water volume flow or a volume flow which varies according to the measured temperature in a given third relation.
  • Whether the normal operation starts with a first phase or a second phase depends on the end temperature of the start operation. If the start operation ends at the given lower temperature limit, the normal operation starts with a first phase as described before. If the start operation ends at the given upper temperature limit, the normal operation starts with a second phase as described before.
  • the fixed second water volume flow equals the third water volume and/or the given second relation and the given third relation are equivalent or equal.
  • the fixed first water volume flow equals the fixed second and third water volume flow and/or the given first relation and the given second relation and the given third relation are equivalent or equal and/or the given first relation and the given second relation and the given third relation are part of a consistent superior relation between the measured temperature and the volume flow.
  • volume flow solely depends from the measured temperature and is independent from the active operation or phase.
  • the water volume flow is low at measured low temperatures and is high at measured high temperatures.
  • the given first relation and/or the given second relation and/or the given third relation and/or the superior relation is or are a directly proportional relation between the measured temperature and the volume flow.
  • the given lower temperature limit is in the range of 115°C to 140 0 C, especially 12O 0 C to 135°C, particularly about 13O 0 C
  • the given upper temperature limit is in the range of 140 0 C to 170 0 C, especially 145°C to 160°C, particularly about 150°C.
  • the mentioned first temperature is equal to or higher than 100 0 C, especially is in the range of 100°C to 130°C, particularly in the range of 100°C to 115°C.
  • the proposed process includes the following steps: a) measuring the duration of the second phase of the normal operation, b) comparing this measured duration to a given duration value, and c) starting a fault operation in case the measured duration diverges more than a given diverge value from the given duration value.
  • the process can include the following steps: a) measuring the frequency of the temperature sequence in the normal operation and/or the frequency of the switching on and off of the heating element of the steam generator in the normal operation, b) comparing this measured frequency to a given frequency value, and c) starting a fault operation in case the measured frequency diverges more than a given diverge value from the given frequency value.
  • a) measuring the frequency of the temperature sequence in the normal operation and/or the frequency of the switching on and off of the heating element of the steam generator in the normal operation b) comparing this measured frequency to a given frequency value, and c) starting a fault operation in case the measured frequency diverges more than a given diverge value from the given frequency value.
  • the mentioned fault operation can comprise at least one of the following procedures: a) giving a warning signal, especially displaying a visual warning signal and/or resounding an acoustical warning signal, and/or b) stopping or interrupting an active working process of the domestic appliance, and/or c) opening a water supply of a water reservoir, which is located in or at the domestic appliance for receiving water for the steam unit, especially opening a valve, particularly a magnetic valve, arranged to open und close the water supply of the water reservoir, and/or d) opening an reserve tank, provided in or at the domestic appliance to supply water to the steam unit.
  • the water supply means to supply water to the steam generator can be or can comprise a pump.
  • the water volume flow pumped by the pump can be controlled by adjusting the working frequency of the pump and/or the start-up triggering of the pump.
  • the water supply means can be or can comprise valves, which are arranged to control the water volume flow.
  • the suggested process can be controlled by at least one electronic controlling device provided in or at the domestic appliance.
  • This electronic controlling device can be integrated into the electronic controlling device of the domestic appliance and/or can be connected to the electronic controlling device of the domestic appliance.
  • the mentioned domestic appliance can be a dryer for textiles, especially a dryer of the condensation type.
  • the proposed process is also very useful for washing machines, particularly domestic washing machine.
  • FIG 1 shows schematically in a front elevation an example of a home dryer with a steam unit which can be controlled by a process according to the invention
  • FIG 2 shows schematically a top view of the steam unit placed within the dryer shown in FIG 1 ,
  • FIG 3 shows another example of a home dryer with a steam unit which can be controlled by a process according to the invention
  • FIG 4 shows in an magnification a part of FIG 3 that shows the steam unit module
  • Fig 5 shows at time-temperature diagram of a faultless operation of the steam unit of a domestic appliance, e.g. a dryer as it is shown in FIG 1 to FIG 4, and
  • FIG 6 shows a time-temperature diagram according to FIG 5 and compares a faultless and a faulty operation of the steam unit of a domestic appliance, e.g. a dryer as it is shown in FIG 1 to FIG 4.
  • a domestic appliance e.g. a dryer as it is shown in FIG 1 to FIG 4.
  • FIG 1 a domestic appliance 1 in the form of a home dryer for drying textiles is shown wherein the drying of the textiles occurs in a well known manner.
  • the textiles (not depicted) are placed in a drum 3, which is generally a treatment area.
  • the drum 3 is closed by a door 20.
  • the dryer 1 is designed as a dryer of the condensation type. I. e. it has a condensate reservoir 16 in which water is collected which is extracted from the wet textiles.
  • a steam process is carried out in the dryer 1. Steam, i. e. hot or superheated steam, is applied to the textiles in the drum 3 of the dryer 1.
  • a modular steam unit 2 for the production of the steam is arranged within the dryer 1.
  • a water reservoir 6 to supply the steam unit is placed in a side region 13 of the dryer 1 , in an upper region 14, close to a side panel 17 of the dryer 1 and between the side panel 17 and the condensate reservoir 16.
  • the condensate reservoir 16 is arranged as part of a drawer (not depicted) that could be removed from the dryer 1 to empty it.
  • a front panel 21 of this drawer can be seen in FIG 1. This front panel 21 additionally covers at least a part of the water reservoir 6.
  • the steam unit 2 is designed as a compact and modular element. Therefore, the whole steam unit 2 can be assembled or disassembled into or from the dryer 1.
  • the steam unit 2 is arranged in the left part, i. e. in the side region 13, of the dryer in a lower region 15, especially between the drum 3 and a side panel 17 of the dryer 1. It is also possible to locate the steam unit 2 in an upper region 14 of the appliance 1.
  • the steam unit 2 comprises different components, i. e. a steam generator 4 with a heating element, which is supplied with water from the water reservoir 6 by means of a pump 5, which is also arranged within the steam unit 2.
  • Steam generator 4 and pump 5 are fixed on a base plate 11 which is received in receiving means 12 arranged at the dryer 1 , which are shown only schematically. It can be seen that this receiving means 12 fit into holes 22 in the base plate 11.
  • the base plate 11 is set on the receiving means 12 via a vertical movement and affixed by an additional horizontal movement, whereby a horizontal groove (not depicted) in the receiving means 12 slides into a corresponding recess 23 in the base plate 11.
  • the water reservoir 6 can be arranged as additional part of the modular steam unit 2 (not depicted), e.g. by arranging it on the top of the steam generator 4 and/or the pump 5.
  • the steam produced by the steam generator 4 is supplied via a steam tube 18 to an outlet nozzle 19 and into the drum 3.
  • the steam unit 2 has also a safety device 7 and an electronic controlling device 8.
  • an electric wrap connection device 9 is arranged to establish the electrical connection with the controlling device 10 of the dryer 1 (see FIG 1 ).
  • One part 9' of the electric wrap connection device 9 is fixed on the base plate 11 and another part 9" of the electric wrap connection device 9 can be connected with the domestic appliance 1.
  • the electrical connection is achieved automatically, as the two parts 9' and 9" come into contact.
  • plug connector and socket as electric wrap connection device.
  • the electrical connection between steam unit and controlling device of the dryer can be done by just connecting the connector with the socket.
  • the water reservoir 6 allows the storage and the supply of clean and decontaminated water for the steam production. As shown in FIG 1 , it is designed in that way that it becomes very small to use a free space between the condensate reservoir 16 and the side panel 17.
  • the different components can be fixed on the base plate 11 using several bolts which are arranged on the base plate, e. g. four bolts, which are connected with the components to arrange them firmly to the base plate 11.
  • FIG 3 shows another example of a home dryer 1 according to the invention.
  • the side panel is removed, therefore the arrangement of the water reservoir 6 and the steam unit module 2 in the dryer 1 can be seen.
  • FIG 4 shows in a magnification of FIG 3 the arrangement of the steam unit 2.
  • the steam generator 4, the pump 5, the base plate 11 and the receiving means 12 arranged at the dryer 1 to receive the base plate 11 can be seen.
  • FIG 5 shows at time-temperature diagram, whereby the time is applied on the x-axis and the temperature is applied on the y-axis.
  • the graph or line 24 shown in this time- temperature diagram illustrates the temperature measured at the surface of the steam generator 4 of the steam unit 2 of a domestic appliance 1. A similar graph would occur if the temperature of the heating element of the steam generator 4 or the temperature of the water steam would be measured and depicted in a time-temperature diagram.
  • the start operation 26 is divided into two phases, whereby a second phase 28 follows a first phase 27.
  • the first phase 27 lasts till a given first temperature 29, which is higher than 100°C, is reached.
  • the heating element of the steam generator 4 is switched on and the water supply means 5 are switched off. Therefore the steam generator is heated up, the measured temperature graph 24 in FIG 5 rises continuously during the first phase 27 of the start operation 26, but no water flows through the steam generator and therefore during this first phase 27 no or very few steam is produced.
  • the heating element of the steam generator 4 is switched on and the water supply means 5 supply a given water volume flow to the steam generator.
  • This given water volume flow is a fixed first water volume flow.
  • This first water volume flow can be obtained by controlling the pump 5 with a certain first frequency.
  • the volume flow varies according to the measured temperature in a given first relation.
  • the steam generator 4 is heated up further on, the measured temperature graph 24 in FIG 5 rises continuously during the second phase 28 of the start operation 26. Furthermore during this second phase 28 of the start operation 26 steam is produced by the steam generator.
  • the normal operation 32 is composed of a first phase 33 and a second phase 34, whereby first phase 33 and second phase 34 alternate all along the normal operation 32.
  • the normal operation 32 starts at the end of the start operation 26, when the measured temperature (graph 24) reaches the lower temperature limit 30.
  • the normal operation 32 starts with a first phase 33.
  • the heating element of the steam generator 4 is switched on and the pump 5 supplies a given water volume flow to the steam generator 4.
  • This given water volume flow is a fixed second water volume flow.
  • This second water volume flow can be obtained by controlling the pump 5 with a certain second frequency.
  • the volume flow varies according to the measured temperature in a given second relation.
  • the steam generator 4 is heated up, the measured temperature graph 24 in FIG 5 rises during the first phase 33 of the normal operation 32. Furthermore during this first phase 33 of the normal operation 32 steam is produced by the steam generator 4.
  • the first phase 33 of the normal operation 32 ends when the upper temperature limit 31 is reached. At this time the second phase 34 of the normal operation 32 starts.
  • this second phase 34 of the normal operation 32 the heating element of the steam generator 4 is switched off and the pump 5 supplies a given water volume flow to the steam generator 4.
  • This given water volume flow is a fixed third water volume flow.
  • This third water volume flow can be obtained by controlling the pump 5 with a certain third frequency.
  • the volume flow varies according to the measured temperature in a given third relation.
  • the second phase 34 of the normal operation 32 lasts till the given lower temperature limit 30 is reached. At this time the next first phase 33 of the normal operation 32 starts. When the upper temperature limit 31 is reached again, in turn the next second phase 34 of the normal operation 32 starts, and so on.
  • the given lower temperature limit is about 130 0 C
  • the given upper temperature limit is about 15O 0 C
  • the first temperature is about 110 0 C.
  • the start operation lasts till the upper temperature limit 31 is reached.
  • the second phase of the start operation is longer, it does not end when the lower temperature limit 30 is reached but it ends when the upper temperature limit 31 is reached. Consequently the normal operation again starts at the end of the start operation, which in this case means when the measured temperature reaches the upper temperature limit 31.
  • the first phase of the normal operation as describes before starts and lasts till the given upper temperature limit 31 is reached.
  • the next second phase of the normal operation starts, and so on.
  • FIG 6 again shows a time-temperature diagram according to FIG 5.
  • the measured temperature graph 24 representing a faultless operation as described on the basis of FIG 5 is depicted with a continuous line. Additionally a faulty operation is shown in FIG 6, the corresponding measured temperature graph 35 is depicted with a broken line.
  • the fault might be a leakage in the water supply system, an empty water reservoir, a faulty pump, and so on. In this case the water volume flow into the steam generator 4 is lower than usual and therefore the cooling down of the steam generator, which mainly is caused because of the water volume flow, takes longer.
  • This difference in the duration of the second phase 34 of the normal operation 32 is shown in FIG 6.
  • the duration of the second phase 34 in a faultless operation is depicted with arrow 36
  • the duration of the second phase 34 in a faulty operation is depicted with arrow 37.
  • the faulty duration 37 is much longer than the faultless duration 36. Therefore by measuring the duration of the second phase 34 and by comparing the measured value with a given value or value range it is possible to detect a faulty operation of the steam unit and to start a fault operation.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Air Humidification (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Commercial Cooking Devices (AREA)
  • Cookers (AREA)
  • General Preparation And Processing Of Foods (AREA)

Abstract

L'invention se rapporte à un processus pour commander une unité à vapeur d'un appareil ménager, laquelle unité à vapeur produit une vapeur d'eau, en particulier une vapeur d'eau chaude ou surchauffée, qui est transmise à une zone de traitement, en particulier à un tambour, et laquelle unité à vapeur comprend au moins un générateur de vapeur avec un élément chauffant et des moyens d'alimentation en eau pour alimenter le générateur de vapeur en eau. Le processus selon l'invention est caractérisé en ce que la température (24) du générateur de vapeur, en particulier la température de surface du générateur de vapeur et/ou la température de l'élément chauffant du générateur de vapeur et/ou la température de la vapeur d'eau est mesurée et, en fonctionnement normal, l'élément chauffant du générateur de vapeur et/ou les moyens d'alimentation en eau sont commandés de manière telle que la température mesurée (24) est maintenue entre une limite de température inférieure donnée (30) et une limite de température supérieure donnée (31).
PCT/EP2007/006641 2006-07-31 2007-07-26 Processus pour commander une unité à vapeur d'un appareil ménager Ceased WO2008014924A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06015894.6 2006-07-31
EP06015894A EP1887123B1 (fr) 2006-07-31 2006-07-31 Méthode pour le réglage d'une unité de vapeur d'un appareil électroménager

Publications (1)

Publication Number Publication Date
WO2008014924A1 true WO2008014924A1 (fr) 2008-02-07

Family

ID=38052123

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/006641 Ceased WO2008014924A1 (fr) 2006-07-31 2007-07-26 Processus pour commander une unité à vapeur d'un appareil ménager

Country Status (7)

Country Link
EP (1) EP1887123B1 (fr)
AT (1) ATE495295T1 (fr)
DE (1) DE602006019578D1 (fr)
ES (1) ES2359845T3 (fr)
PL (1) PL1887123T3 (fr)
RU (1) RU2442849C2 (fr)
WO (1) WO2008014924A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562302A2 (fr) 2011-08-22 2013-02-27 LG Electronics Appareil domestique comprenant un générateur de vapeur et une méthode de contrôle de celui-ci
EP2578735A1 (fr) 2011-08-22 2013-04-10 LG Electronics Inc. Procédé de commande d'une machine à laver comprenant un générateur de vapeur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2287381A1 (fr) 2009-08-17 2011-02-23 BSH Bosch und Siemens Hausgeräte GmbH Générateur de vapeur à utiliser dans un appareil de traitement du linge et appareil comprennant celui-ci
EP2287390A1 (fr) * 2009-08-18 2011-02-23 BSH Bosch und Siemens Hausgeräte GmbH Procédé de fonctionnement d'un générateur de vapeur d'un appareil de traîtement du linge et appareil de traîtement du linge
US20240110697A1 (en) * 2022-10-03 2024-04-04 Whirlpool Corporation Liquid level estimation in a steam generation system

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RU2442849C2 (ru) 2012-02-20
PL1887123T3 (pl) 2011-10-31
ATE495295T1 (de) 2011-01-15
EP1887123A1 (fr) 2008-02-13
RU2009107220A (ru) 2010-09-10
ES2359845T3 (es) 2011-05-27
EP1887123B1 (fr) 2011-01-12

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