WO2005047773A1 - Befüllungs-und/oder füllmengenüberwachungsverfahren in einem gargerät und gargerät mit befüllungs- und/oder füllmengenüberwachung - Google Patents
Befüllungs-und/oder füllmengenüberwachungsverfahren in einem gargerät und gargerät mit befüllungs- und/oder füllmengenüberwachung Download PDFInfo
- Publication number
- WO2005047773A1 WO2005047773A1 PCT/DE2004/002449 DE2004002449W WO2005047773A1 WO 2005047773 A1 WO2005047773 A1 WO 2005047773A1 DE 2004002449 W DE2004002449 W DE 2004002449W WO 2005047773 A1 WO2005047773 A1 WO 2005047773A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluid
- shut
- pump device
- cooking appliance
- inner box
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
- F24C14/005—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning using a cleaning liquid
Definitions
- the invention relates to a fueling and / or filling quantity monitoring method for at least one reservoir for at least temporarily receiving at least one fluid in a cooking device with an inner box, comprising a cooking chamber with at least one fluid inlet and at least one fluid outlet, a blower device, comprising at least one fan wheel in the inner box , at least one drive shaft for the fan wheel and at least one motor for the drive shaft, for circulating at least part of the fluid at least in the inner box and a control or regulating device in operative connection with the blower device and / or a fueling and / or filling quantity monitoring device; and a cooking device with an inner box, comprising a cooking chamber with at least one fluid inlet and at least one fluid outlet, a blower device, comprising at least one fan wheel in the inner box, at least one drive shaft for the fan wheel and at least one motor for the drive shaft for circulating at least a part of at least one Fluids at least in the inner box, at least one reservoir for at least temporarily receiving at least the fluid with at least one
- Such cooking devices are well known from the prior art, see for example WO 02/068876 AI.
- a method and a device for cleaning a cooking device with the supply of fresh water are known, which in particular from the kettle of a steam generator, be it by overfilling the kettle, Branching off at least once, self-boiled water or condensing vapors, can be poured into a wash liquor reservoir, possibly simultaneously with at least one cleaning agent.
- the wash liquor is then circulated for cleaning, namely from the wash liquor reservoir, which is preferably formed by a steam condenser, in particular provided in the form of a quenching box, to the suction side of a fan wheel, through the cooking space and a cooking space drain back into the washing liquor reservoir.
- the Zirlculation and composition of the wash liquor can be controlled and / or regulated.
- a fill level electrode in the kettle is used as a realization of a fueling and / or fill quantity monitoring device.
- DE 197 30 610 C1 discloses a cleaning method for a cooking device by means of a cleaning liquid which is filled into an inner box of the cooking device sealed to the outside to such a level that the bottom of the inner box is at least completely covered, that is to say serves as a reservoir for the cleaning liquid , The cleaning liquid is then circulated with a circulating device in such a way that the inner surfaces of the inner box are at least partially rinsed with cleaning liquid.
- a fill level electrode is provided to detect the fill level of the inner box.
- Level electrodes have the disadvantage that they easily become dirty when used in cooking appliances and are therefore prone to failure.
- level electrodes represent additional components for which an additional installation space is required and for which costs arise.
- liquid flow meters such as in the form of pulse counters and the like, are also used in cooking appliances, see for example DE 199 12 444 C2. Liquid flow meters are also prone to failure, require installation space and are costly.
- the object of the present invention is to further develop the generic method and cooking appliance in such a way that the disadvantages of the prior art are overcome.
- the object relating to the method is achieved according to the invention in that at least one characteristic quantity of the blower device which changes due to the force of the quantity of fluid impinging on the fan wheel is evaluated by the filling and / or filling quantity monitoring device.
- the speed, the speed fluctuation, the power consumption, the power consumption fluctuation, the current consumption and / or the current consumption fluctuation of the blower device is or are at least temporarily recorded as a characteristic variable for monitoring the filling and / or filling quantity.
- At least part of the fluid is circulated at least in the inner box via at least one pump device, the pump device preferably being clocked.
- an upper limit of the speed and / or a lower limit of the speed is or are determined, preferably as a function of the timing of the pumping device, the amount of fluid supplied to the interior, and the amount of fluid that is removed from the interior Amount of the fluid, the dimensioning of the Cooking appliance, equipping the cooking appliance and / or loading the interior with food to be cooked.
- a time difference is determined from the time span between falling below the lower limit value and exceeding the upper limit value, preferably as a function of the timing of the pump device, for monitoring the fueling and / or filling quantity.
- At least one device for supplying the fluid into the inner box and / or at least one device for removing fluid from the inner box is set, preferably controlled or regulated . become.
- the object of the invention relating to the cooking appliance is achieved in that the filling and / or filling quantity monitoring device is operatively connected to the blower device for detecting at least one quantity characteristic of the quantity of fluid impinging on the fan wheel.
- the motor preferably in the form of an electrically commutated motor, is in operative connection with the control or regulating device.
- Preferred cooking devices of the invention comprise at least one pump device for circulating at least a part of the fluid at least in the inner box, preferably in operative connection with the control or regulating device for setting the pump power and / or the timing of the pump device.
- the invention proposes that the characteristic variable can be determined by evaluating the speed, the speed fluctuation, the power consumption, the power consumption fluctuation, the current consumption and / or the current consumption fluctuation.
- the timing of the pump device can be taken into account when determining the characteristic variable, preferably the time period between a first reduction in speed after switching on the pump device and a first one Speed increase after switching off the pump device, in particular during a cycle, can be evaluated.
- the invention proposes that the fluid comprises water in liquid and / or vapor form and / or wash liquor.
- the reservoir is provided in the inner box, a extinguishing box and / or a water boiler of a steam generator.
- the inner box can be operated via a first fluid inlet in operative connection with the extinguishing box, a second fluid inlet in operative connection with the water boiler and / or a third fluid inlet in operative connection with a water pipe.
- the extinguishing box is available via a fourth fluid inlet in operative connection with the inner box, a fifth fluid inlet in operative connection with the water boiler and / or a sixth fluid inlet in operative connection with a water pipe.
- the invention further provides that the kettle can be operated via a seventh fluid inlet in operative connection with the inner box, an eighth fluid inlet in operative connection with the extinguishing box and / or a ninth fluid inlet in active connection with a water pipe.
- the inner box can be emptied via a first fluid outlet in operative connection with the extinguishing box, a second fluid outlet in operative connection with the water boiler and / or a third fluid outlet in operative connection with a water drain.
- the extinguishing box can be emptied via a fourth fluid outlet in operative connection with the inner box, a fifth fluid outlet in operative connection with the water boiler and / or a sixth fluid outlet in operative connection with a water drain.
- Embodiments according to the invention can be characterized in that the kettle can be emptied via a seventh fluid outlet in operative connection with the inner box, an eighth fluid outlet in operative connection with the extinguishing box and / or a ninth fluid outlet in operative connection with a water drain.
- the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth and / or eighteenth shut-off device comprise or at least one valve include.
- first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth and / or eighteenth shut-off device and / or pump device can be actuated via the control or regulating device, in particular in each case as a function of a comparison of the actual value of the characteristic variable with at least one target value for the characteristic variable.
- the clock ratio of the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth and / or eighteenth shut-off device and / or Pump device is adjustable via the control or regulating device, in particular controllable or regulatable.
- the firing and / or filling quantity monitoring device at least partially includes the blower device and the control and / or regulating device, wherein the firing and / or filling quantity monitoring device preferably also includes the first, second, third, fourth, Fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth and / or eighteenth shut-off device and / or pump device.
- the invention is therefore based on the surprising finding that by evaluating, for example, fluctuations in the speed of a fan wheel in a cooking appliance, be it with regard to the amplitudes, frequencies, phases or time intervals to one another, in the case in which a fan wheel and possibly a pump device are used a washing liquor is circulated in an inner box of the cooking device, for example, which is pumped from a extinguishing box into the inner box and flows from the inner box back into the extinguishing box, so that sufficiently precise statements about the filling status or the filling quantity of the washing liquor circulation circuit can be made that the fan wheel is braked by the wash liquor hitting it, so that there is a load change, which is reflected, among other things, in speed fluctuations.
- the current consumption or power consumption when the load changes due to washing liquor hitting the fan wheel can also be evaluated according to the invention, in particular in the form of evaluating deviations from a target value, the amount of circulating washing liquor being small in the case of small deviations and the circulating amount of washing liquor being large in the case of large deviations. It has proven to be particularly advantageous according to the invention to use a time difference as a measure of a fueling and / or filling quantity and / or a change thereof, which is determined from the time span between falling below a lower limit value and exceeding an upper limit value of the speed of the Fan wheel within one pump cycle.
- the time difference 13 - 1 1 a characteristic size of the fan in a cooking device according to the invention is that can be used for evaluation of a BefuUungs- and / or capacity.
- This time difference is also independent of changeable installations in the cooking appliance, such as in the form of different accessories, or also of a different loading of the cooking appliance.
- the invention thus takes into account for the first time that the fluid circulation circuit is crucial for a satisfactory cleaning result, especially when cleaning in a cooking appliance, and the filling, i.e. the state of filling or the filling quantity, of the circulation circuit with fluid via the consequences of the application of fluid to the fan wheel Regulation of the fluid circulation circuit is to be determined.
- the data to be evaluated in a cooking appliance according to the invention for the purpose of monitoring a filling or a filling quantity, that is to say, for example, fluctuations in speed, can of course be processed further for the purpose of evaluation, in particular subjected to filtering.
- a cooking appliance 1 comprises an inner box 2 in which a fan wheel 3 is arranged.
- the fan wheel 3 is connected to a motor 5 via a drive shaft 4.
- the motor 5 is in turn connected to a control device 8 via a control line 6 as well as a measuring line 7.
- the inner box 2 is connected via a drain line 9 to a quenching box 10, which in turn is connected to the inner box 2 again via an outlet member 13 with the interposition of a pump 11 and a washing liquor line 12.
- the extinguishing box 10 can be supplied with fresh water from a water line 15 via an extinguishing nozzle 14 when the valve 16 is open, the valve 16 being connected to the control device 8 via a control line 17 and a measuring line 18.
- the fresh water is part of a fluid 19 which is circulated in the cooking device 1, in particular during a cleaning process, using the pump 11, which is also connected to the control device 8 via a control line 20 and a measuring line 21.
- the fluid is referred to as wash liquor 19.
- washing liquor 19 can be disposed of via a drain 24 from the circulation circuit of the cooking device 1, in particular via the extinguishing box 10, with a valve 21 interposed.
- the water pipe 15 and the drain 24 can be part of a domestic water network.
- the valve 21 is connected to the control device 8 both via a measuring line 22 and a control line 23.
- the cooking device 1 just described in the construction can work as follows to monitor the filling and the filling quantity of the extinguishing box 10 according to an embodiment of the method according to the invention:
- the initially empty extinguishing box 10 is filled with fresh water via the extinguishing nozzle 14.
- the fresh water introduced into the extinguishing box 10 is immediately conveyed via the pump 11 to the outlet member 13 in order to impinge on the fan wheel 3 from there.
- the pump 11 operates in an adjustable cycle ratio, such as 10 seconds on and 5 seconds.
- the cycle ratio can optionally be changed via the control unit 8.
- the valve 16 is only closed via the control device 8 when a comparison of a first target value for the load absorption of the fan wheel 3 due to a braking by the washing liquor 19 impinging thereon, which corresponds to a desired filling quantity of the circulation circuit of the washing liquor 19, with the over the measurement line 7 of the actual value of the load suspension which is detected.
- the filling monitoring is then completed. This is followed by a monitoring of the filling quantity of the wash liquor 19, i.e. the fluid circulation circuit, circulated from the inner box 2 into the extinguishing box 10 and back into the inner box by evaluating the variance of the speed, i.e. the speed fluctuations, more precisely the level of the speed fluctuations, of the fan wheel 3 instead of.
- the level of the fluctuations allows statements to be made about the circulating capacity in the cooking device according to the invention. While a homogeneous speed of the fan wheel 3 would indicate no or only a slight influence on the fan wheel 3 by the washing liquor 19, an inhomogeneous speed that can be evaluated via speed fluctuations is an indication of an intact circulation.
- a target value of the speed is taken into account as a reference point and filtering is carried out.
- the cycle ratio of the pump 11 is also taken into account in the evaluation via the control device 8, wherein it should be pointed out that the motor 5 would adjust to a given load without the cycle of the pump 11 and the speed of the fan wheel 3 would thus increase to a desired value , which would not allow the determination of the amount of fluid in the circulation circuit.
- valve 16 is opened until the optimum filling is present.
- wash liquor 19 may be required in different cleaning steps, so that different target values are present with which a comparison is carried out in the course of the cleaning process.
- method according to the invention preferred to evaluate time differences. If, for example, the filling quantity of washing liquor 19 is to be kept constant during a cleaning phase, the following method can be carried out, preferably several times, with a predetermined timing of the pump 11:
- the pump 11 is switched on. Once a reduction in the rotational speed, in particular in the form of a falling below a first target value, it is observed the time point 1 1 is held. If this lowering of the rotational speed is then compensated for due to an increasing power consumption of the motor 5, then the point in time at which an increase in the rotational speed, in particular in the form of an exceeding of a second target value, can be observed after the pump 11 is switched off at the point in time 1 2 is, this point in time is designated with 1 3 .
- the difference 1 3 - 1 1 then provides a measure of the filling quantity, with a third target value or a target value range being present for a desired filling quantity.
- the difference 1 3 - 1 1 falls below this third target value, for example, there is a lack of wash liquor 19.
- This lack of washing liquor 19 is possible, for example, by introducing additional fresh water by activating the valve 16 of the extinguishing nozzle 14 via the control device 8.
- the valve 16 to the extinguishing nozzle 14 can be controlled via the control device 8.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502004002995T DE502004002995D1 (de) | 2003-11-13 | 2004-11-05 | Befüllungs-und/oder füllmengenüberwachungsverfahren in einem gargerät und garger t mit befüllungs- und/oder füllmengenüberwachung |
JP2006538645A JP4201817B2 (ja) | 2003-11-13 | 2004-11-05 | 調理機における充填または充填量の監視方法および、充填または充填量の監視装置が備えられた調理機 |
US10/579,017 US20070137496A1 (en) | 2003-11-13 | 2004-11-05 | Filling and/or change monitoring method in a cooking device and cooking device with filling and/or charge monitoring |
EP04818377A EP1682822B1 (de) | 2003-11-13 | 2004-11-05 | Befüllungs-und/oder füllmengenüberwachungsverfahren in einem gargerät und garger t mit befüllungs- und/oder füllmengenüberwachung |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10353193.9 | 2003-11-13 | ||
DE10353193 | 2003-11-13 | ||
DE102004012824A DE102004012824B4 (de) | 2003-11-13 | 2004-03-15 | Befüllungs- und/oder Füllmengenüberwachungsverfahren in einem Gargerät und Gargerät mit Befüllungs- und/oder Füllmengenüberwachung |
DE102004012824.3 | 2004-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005047773A1 true WO2005047773A1 (de) | 2005-05-26 |
Family
ID=34593361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2004/002449 WO2005047773A1 (de) | 2003-11-13 | 2004-11-05 | Befüllungs-und/oder füllmengenüberwachungsverfahren in einem gargerät und gargerät mit befüllungs- und/oder füllmengenüberwachung |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070137496A1 (de) |
EP (1) | EP1682822B1 (de) |
JP (1) | JP4201817B2 (de) |
DE (1) | DE502004002995D1 (de) |
WO (1) | WO2005047773A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013111480A1 (de) | 2013-10-17 | 2015-05-07 | Rational Ag | Gargerät in Modul-Bauweise |
EP3486571A1 (de) * | 2017-11-17 | 2019-05-22 | Miele & Cie. KG | Gargerät und verfahren zum reinigen |
EP2605661B2 (de) † | 2010-08-19 | 2020-10-28 | BSH Hausgeräte GmbH | Dampfgargerätvorrichtung |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101465666B1 (ko) | 2013-07-22 | 2014-11-26 | 린나이코리아 주식회사 | 스팀 오븐의 배수구 냉각 장치 및 방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2555052A1 (de) * | 1975-12-06 | 1977-06-08 | Miele & Cie | Steuereinrichtung fuer eine geschirrspuelmaschine mit programmgesteuerte wasserzufuhr |
DE19730610C1 (de) * | 1997-07-17 | 1998-10-22 | Wiesheu Gmbh | Ofen zur Wärmebehandlung von Lebensmitteln und Verfahren zum Reinigen des Innenraums |
US6410890B1 (en) * | 2000-04-12 | 2002-06-25 | Rational Ag | Apparatus and method for cleaning the interior of a cooking device |
US20030145847A1 (en) * | 2001-02-26 | 2003-08-07 | Martin Deuringer | Device and method for cleaning a cooking device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1265578B1 (it) * | 1993-11-04 | 1996-11-22 | Zanussi Grandi Impianti Spa | Forno di cottura dotato di dispositivi perfezionati di pulitura automatica |
DE19912444C2 (de) * | 1999-03-19 | 2001-11-29 | Rational Ag | Dampfgenerator eines Gargerätes mit einer Vorrichtung zur elektronischen Verkalkungsüberwachung |
-
2004
- 2004-11-05 WO PCT/DE2004/002449 patent/WO2005047773A1/de active IP Right Grant
- 2004-11-05 US US10/579,017 patent/US20070137496A1/en not_active Abandoned
- 2004-11-05 JP JP2006538645A patent/JP4201817B2/ja not_active Expired - Fee Related
- 2004-11-05 EP EP04818377A patent/EP1682822B1/de active Active
- 2004-11-05 DE DE502004002995T patent/DE502004002995D1/de active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2555052A1 (de) * | 1975-12-06 | 1977-06-08 | Miele & Cie | Steuereinrichtung fuer eine geschirrspuelmaschine mit programmgesteuerte wasserzufuhr |
DE19730610C1 (de) * | 1997-07-17 | 1998-10-22 | Wiesheu Gmbh | Ofen zur Wärmebehandlung von Lebensmitteln und Verfahren zum Reinigen des Innenraums |
US6410890B1 (en) * | 2000-04-12 | 2002-06-25 | Rational Ag | Apparatus and method for cleaning the interior of a cooking device |
US20030145847A1 (en) * | 2001-02-26 | 2003-08-07 | Martin Deuringer | Device and method for cleaning a cooking device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2605661B2 (de) † | 2010-08-19 | 2020-10-28 | BSH Hausgeräte GmbH | Dampfgargerätvorrichtung |
DE102013111480A1 (de) | 2013-10-17 | 2015-05-07 | Rational Ag | Gargerät in Modul-Bauweise |
DE102013111480B4 (de) | 2013-10-17 | 2022-01-05 | Rational Ag | Gargerät in Modul-Bauweise |
EP3486571A1 (de) * | 2017-11-17 | 2019-05-22 | Miele & Cie. KG | Gargerät und verfahren zum reinigen |
Also Published As
Publication number | Publication date |
---|---|
EP1682822B1 (de) | 2007-02-21 |
EP1682822A1 (de) | 2006-07-26 |
DE502004002995D1 (de) | 2007-04-05 |
JP4201817B2 (ja) | 2008-12-24 |
JP2007510881A (ja) | 2007-04-26 |
US20070137496A1 (en) | 2007-06-21 |
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