EP4090888A1 - Dispositif de détection des vapeurs pour un appareil de cuisson et unité constituée d'un appareil de cuisson et d'un dispositif de détection des vapeurs - Google Patents

Dispositif de détection des vapeurs pour un appareil de cuisson et unité constituée d'un appareil de cuisson et d'un dispositif de détection des vapeurs

Info

Publication number
EP4090888A1
EP4090888A1 EP21700748.3A EP21700748A EP4090888A1 EP 4090888 A1 EP4090888 A1 EP 4090888A1 EP 21700748 A EP21700748 A EP 21700748A EP 4090888 A1 EP4090888 A1 EP 4090888A1
Authority
EP
European Patent Office
Prior art keywords
exhaust air
opening
detection device
vapor detection
vapor
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.)
Pending
Application number
EP21700748.3A
Other languages
German (de)
English (en)
Inventor
Anja Toussaint
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.)
Oxytec Ag
Original Assignee
Oxytec Ag
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 Oxytec Ag filed Critical Oxytec Ag
Publication of EP4090888A1 publication Critical patent/EP4090888A1/fr
Pending legal-status Critical Current

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
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2007—Removing cooking fumes from oven cavities
    • 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
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2035—Arrangement or mounting of filters
    • 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
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft

Definitions

  • Vapor detection device for a cooking device and unit with cooking device and vapor detection device
  • the present invention relates to a vapor detection device for a cooking device, with at least one first opening which can be connected to at least one cooking chamber of the cooking device via a ventilation system of the same for the inflow of exhaust air from the cooking device into the vapor detection device, at least one second opening into which Ambient air and exhaust air from the cooking appliance can flow in when the door of the cooking chamber is at least partially open, a condensation device for at least partial removal of aerosols and steam from exhaust air and a treatment device for at least partial removal of unwanted substances and / or odors from exhaust air.
  • the invention also relates to a unit comprising such a vapor detection device and a cooking appliance.
  • extractor hoods which may also be referred to as vapor detection devices, are known, which clean the exhaust air of a cooking appliance, so to speak, by namely freeing the same of vapors and other undesirable substances and decomposing odor-bearing exhaust gases.
  • the exhaust air can get into the extractor hood in two different ways, namely on the one hand via a ventilation system for the cooking space and possibly other interior spaces of the cooking device and on the other hand with the door of the cooking space open together with the atmosphere outside the cooking space, i.e. the ambient air.
  • DE 102007042284 A1 proposes a combination of known devices in an extractor hood in which the vapor first passes a condensation section, then experiences a deflection and finally passes through an odor treatment section. Moisture from the vapor condenses in the condensation section, while unpleasant smells are reduced in the course of the odor treatment section before being passed on to the ambient air. It should be essential to provide a separation of functions within a Dunstab hood, whereby the deflection of the flow between the two func on units should lead to a compact structure.
  • An extractor hood is also known from DE 202011 050 141 U1.
  • the invention is based on the object of improving a vapor detection device with regard to its structure and / or its effect.
  • the invention is based on a vapor detection device for a cooking device, with at least one first opening, which can be connected to at least one cooking space of a cooking device via a ventilation system of the same for the inflow of exhaust air from the cooking device into the vapor detection device, at least one second opening in the ambient air and, when the door of the cooking chamber is at least partially open, exhaust air from the cooking appliance can flow in, a condensation device for at least partial removal of aerosols, drops of water and steam from the exhaust air and a treatment device for at least partially removing undesirable substances and / or odors from exhaust air, and with at least one third opening from which the treated exhaust air from the vapor detection device can flow out.
  • the exhaust air flowing into the vapor collection device through the first opening and / or preferably through the second opening flows through successively following stations arranged within the vapor collection device, namely • a coolable body as a station of the condensation device in order to clean the exhaust air from aerosols and water droplets and to condense out at least part of the water vapor and preferably partially cool it,
  • the arrangement according to the invention of the condensation device and treatment device with the aforementioned stations is also suitable for a vapor detection device which is arranged above a hob.
  • the invention also relates to a vapor detection device for a hob, with at least one opening into which ambient air and exhaust air from the hob can flow into the vapor detection device arranged at a distance from the hob, a condensation device for at least partial removal of aerosols, what droplets and steam from the Exhaust air and a treatment device at least partially remove undesirable substances and / or odors from exhaust air, and with at least one other opening from which the treated exhaust air can flow out of the vapor collection device, the exhaust air flowing through one opening into the vapor collection device one after the other following within the vapor detection device arranged stations flows through, namely
  • a coolable body as a station of the condensation device in order to clean the exhaust air from aerosols and water droplets and to condense out at least part of the water vapor and preferably partially cool it
  • an activated carbon filter as the fourth station of the treatment facility. If the exhaust air flow is divided into several exhaust air partial flows, the exhaust air partial flows pass through the aforementioned stations of the treatment device in parallel. Accordingly, the stations can also be divided, for example an activated carbon filter of the fourth station can be provided for one exhaust air partial flow and another activated carbon filter of the fourth station spaced apart therefrom for another exhaust air partial flow.
  • the grease trap filter is preferably a metal mesh filter. Before geous such a filter can be processed or regenerated at any time by washing. Impurities, in particular fat particles, are deposited on such a filter.
  • the sponge filter which is designed, for example, as a filter mat made of foam, filters larger particles, fat particles, and possibly also water from the exhaust air. Such a filter can advantageously be prepared or regenerated at any time by washing.
  • a plasma is to be understood as a gas whose components have at least some ions and electrons and thus contain free charge carriers.
  • a plasma neutralizes unwanted particles, and odors from the exhaust air that are perceived as unpleasant can also be eliminated or reduced by the plasma formed.
  • the formation of plasma or exhaust air ionization creates ozone, among other things, which causes various types of molecules or chains of molecules to be broken down.
  • the excitation of air or the exhaust air to form a plasma leads to a plasma state of the air or the exhaust air in which the resulting ions that form free radicals in the plasma, or in which the free electrons cause these in turn the molecules / chains, aerosol particles or unwanted ones contained in the air or the plasma Substances react in order to reduce their undesirable effects on people and the environment to a desired level.
  • the plasma has the property that undesired or unstable molecules / chains of the air or exhaust air are decomposed or converted into stable compounds by the plasma in an oxidation process.
  • Such an oxidation or decomposition process is often referred to as cold combustion.
  • Contributing to this is the ozone generated during plasma formation, which develops an odor-neutralizing effect within the scope of the vapor collection device according to the invention. Unpleasant odors, such as those that usually arise when cooking food, are significantly reduced.
  • the excitation of the air or exhaust air for plasma formation can take place in different ways.
  • a plasma generator which has a flow through the exhaust air and ei nen flow channel transversely penetrating grid of voltage-subject electrodes, each with an electrically conductive core and an insulator jacket surrounding the core, preferably in the form of a glass tube, as well as a ver with the electrode grid Bound power electronics to build up potential differences between electrodes closest to one another by applying voltage to the same, the electrodes being rod-shaped, each passing through the flow channel and being arranged parallel and equidistant from one another.
  • the aforementioned electrode grid is preferably subjected to 5-10, preferably 8, kilovolts.
  • the treatment device has an activated carbon filter that has a flow technology downstream of the third station, in particular to filter out residual particles contained in the exhaust air.
  • the use of an activated carbon filter also serves to ensure that compounds in the activated carbon that have not yet been converted by the plasma are decomposed.
  • the activated carbon is therefore not used as a storage medium, but rather as a catalyst and additional reaction platform.
  • the activated carbon the ozone generated during plasma formation is broken down. This also leads to a regeneration of the activated carbon.
  • a fan device preferably a radial fan, is provided between the condensation device and the treatment device.
  • the blower causes an acceleration of the exhaust air flow, which flows in a predetermined manner through the condensation device and the treatment device.
  • the fan device is arranged in such a way that it deflects the exhaust air flow upwards, preferably upwards by 90 °. As a result, a compact design of the vapor collection device can be achieved.
  • the exhaust air flow after the blower device divides into two exhaust air partial flows, each exhaust air partial flow flowing through a treatment device or the stations of the treatment device.
  • the division of the exhaust air flow into two partial flows has the advantage that space is created between the exhaust air flows to accommodate at least one transformer.
  • two transformers for generating one plasma per partial exhaust air flow are provided in said space.
  • a previously described electrode grid is preferably provided in each partial exhaust air flow.
  • the coolable body is a tube package which comprises a plurality of tubes spaced apart from one another and arranged one above the other and one behind the other.
  • the tubes of the tube package are preferably aligned transversely to the exhaust air flow, so that the exhaust air flow flows around the tubes and the tube package as such is flowed through by the exhaust air flow.
  • the coolable body is arranged directly behind the second opening in the flow path of the air flowing in through the second opening or through the one opening.
  • the grease trap filter, the sponge filter and / or the active carbon filter of the treatment device are each plate-shaped, preferably in the form of an insert or insert that can be removed from the vapor collection device. If the exhaust air flow is divided into partial flows, there is preferably one for each partial flow In each case a separate insert or insert of the grease trap filter, the sponge filter and / or the activated carbon filter that can be removed from the vapor detection device is provided.
  • the inserts can preferably be pushed into and pulled out from the front of the vapor detection device.
  • a preferably plate-shaped fat separating filter is arranged in front of or in the second opening or the one opening, which is arranged in the flow path of the exhaust air flowing in through the second opening or the one opening in front of the coolable body.
  • This is preferably replaceable, especially washable for preparation, and serves to separate unwanted particles, in particular fat particles, from the exhaust air before the exhaust air comes into contact with the coolable body of the condensation device.
  • a baffle plate is arranged in front of the second opening or the one opening, which is arranged in the flow path of the exhaust air flowing in through the second opening or the one opening in front of the grease trap filter arranged in the second opening or the one opening is.
  • the main purpose of the baffle plate is to increase the air speed and to improve the inflow of exhaust air into the vapor detection device.
  • the third opening is provided with a preferably plate-shaped HEPA filter, which is arranged in the flow path of the exhaust air after the treatment device, or if the other opening is provided with a preferably plate-shaped electrostatic filter, which is arranged in the flow path of the exhaust air the treatment device is arranged.
  • HEPA filters High Efficiency Particulate Airfilter
  • These filters are commercially available and therefore inexpensive for separating out residual particles that have remained in the exhaust air.
  • the filters in question have the advantage that further particles, such as those that can get into the air through the activated carbon filter, are filtered as they flow through the fine particle filter, which improves the purity of the air and the filtering out of undesirable constituents in the air. This will the reliability of the function of a vapor collection device according to the invention with regard to the filter effect is increased in a simple manner.
  • the HEPA filter is preferably arranged in a removable cover of the vapor collection device.
  • the at least one third opening for the outlet of the treated exhaust air from the vapor detection device is also located in this cover.
  • the condensation device has a base which is provided with a pipe-like drain in order to remove condensate and possibly fat or other undesired particles from the vapor collection device.
  • the fan device is arranged in a passage of a tub arranged under the treatment device, the tub having a tubular drain in its bottom to drain condensate and / or fat particles or other unwanted particles into the tubular drain of the floor to direct the condensation device and discharge from the vapor detection device.
  • the existing wall consists at least in sections of a stainless steel material or has a stainless steel material. In this way, in particular, a decomposition or damage to components or sections of a ventilation device according to the invention that are correspondingly formed with stainless steel is prevented by the ozone in a simple manner.
  • the invention also relates to a unit with on the one hand a cooking device with a cooking space, at least one device for applying hot air, steam and / or microwaves to food arranged in the cooking space and at least one device for cleaning at least the cooking space and, on the other hand, with a vapor detection device according to the invention, whereby the first opening of the vapor detection device is connected to a ventilation system of the cooking appliance that is operatively connected to the cooking chamber.
  • Fig. 1 is a schematic exploded view of an inventive
  • Fig. 2 is a schematic exploded view of the third station of the treatment device Be with two plasma sub-stations including a blower device arranged below the treatment device,
  • FIG. 5 shows a schematic exploded view of the fourth station of the treatment device, which has an activated carbon filter, in the form of an insert and FIG
  • FIG. 6 shows a schematic exploded view of the second station of the treatment device, which has a sponge filter, in the form of an insert.
  • Fig. 1 shows a schematic exploded view of a vapor detection device 10 according to the invention for a cooking device, not shown here, comprising at least one first opening 12, which can be connected to at least one cooking chamber of the cooking device via a ventilation system of the same for the flow of exhaust air from the cooking device into the vapor detection device and at least one second opening 14 into which ambient air and, when the door of the cooking chamber is at least partially open, exhaust air from the cooking appliance can flow in.
  • the Vapor detection device 10 has a condensation device 16 for at least partial removal of aerosols, water droplets and steam from the exhaust air and a treatment device 18 for at least partial removal of undesirable substances and / or odors from the exhaust air.
  • the vapor collection device comprises at least one third opening 20, from which the treated exhaust air from the vapor collection device 10 can flow out.
  • blower device 32 in the present case a radial fan, is provided between the condensation device 16 and the treatment device 18.
  • the blower device 32 can be seen clearly in FIG. 2.
  • the blower device 32 is arranged in such a way that it deflects the exhaust air flow upwards.
  • the exhaust air stream is divided into two exhaust air partial streams downstream of the blower device 32, with each exhaust air partial stream flowing through a treatment device 18.
  • the partial flows are separated from one another by a space 54 in which there are two transformers 56 for generating one volume plasma for each exhaust air partial flow.
  • the partial flow of exhaust air flows through the treatment device 18.
  • the individual stations 24, 26 and 30 - as shown in FIG. 1 - are provided for each partial flow, that is to say they are present twice.
  • the electrode grids are preferably subjected to 5-10, preferably 8, kilovolts.
  • the coolable body 22 is - as shown in FIG. 3 - a tube package which comprises a plurality of tubes 34 which are spaced apart from one another and arranged one above the other.
  • 6x6, i.e. 24 tubes are provided, the individual rows being arranged alternately offset to one another.
  • the coolable body 22 is arranged directly behind the second opening 14 in the flow path of the exhaust air flowing in through the second opening 14.
  • the fat trap filter 24, the sponge filter 26 and / or the activated charcoal filter 28 of the treatment device 18 are each plate-shaped in the form of a removable insert or insert 36 in the present case for each partial flow. 5 and 6, the Ak tivkohlefilter 28 and the sponge filter 26 having inserts 36 are shown in detail.
  • a preferably plate-shaped fat separating filter 38 is arranged in front of or in the second opening 14, which is arranged in the flow path of the exhaust air flowing in through the second opening 14 in front of the coolable body 22.
  • a baffle plate 39 is arranged in front of the second opening 14 and is arranged in the flow path of the exhaust air flowing in through the second opening 14 in front of the grease trap filter 38 arranged in the second opening 14.
  • the third opening 20, which can be clearly seen in FIG. 4, has a plate-shaped HEPA filter 40 which is net angeord in the flow path of the exhaust air after the treatment device 18.
  • the condensation device 16 has a base 42 which is provided with a tubular drain 44 in order to discharge condensate and possibly other unwanted particles, for example fat particles, from the vapor collection device 10.
  • the fan device 32 is arranged in a passage 46 of a trough 48 arranged under the treatment device 16, the trough 48 having a tubular drain 52 in its bottom 50 to remove condensate and possibly other unwanted particles, for example fat particles, into the tubular Drain 44 of the bottom 42 of the condensation device 16 to lead and discharge from the vapor detection device 10.
  • condensation device 18 treatment device 20 opening 22 coolable body 24 fat trap filter 26 sponge filter 28 plasma 30 activated carbon filter 32 blower device 34 pipe 36 insert

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Ventilation (AREA)

Abstract

L'invention concerne un dispositif de détection de vapeurs pour un appareil de cuisson ainsi qu'une unité constituée d'un appareil de cuisson et d'un dispositif de détection des vapeurs.
EP21700748.3A 2020-01-15 2021-01-15 Dispositif de détection des vapeurs pour un appareil de cuisson et unité constituée d'un appareil de cuisson et d'un dispositif de détection des vapeurs Pending EP4090888A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020100824.4A DE102020100824A1 (de) 2020-01-15 2020-01-15 Wrasenerfassungseinrichtung für ein Gargerät und Einheit mit Gargerät und Wrasenerfassungseinrichtung
PCT/EP2021/050804 WO2021144419A1 (fr) 2020-01-15 2021-01-15 Dispositif de détection des vapeurs pour un appareil de cuisson et unité constituée d'un appareil de cuisson et d'un dispositif de détection des vapeurs

Publications (1)

Publication Number Publication Date
EP4090888A1 true EP4090888A1 (fr) 2022-11-23

Family

ID=74187307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21700748.3A Pending EP4090888A1 (fr) 2020-01-15 2021-01-15 Dispositif de détection des vapeurs pour un appareil de cuisson et unité constituée d'un appareil de cuisson et d'un dispositif de détection des vapeurs

Country Status (4)

Country Link
US (1) US20230044026A1 (fr)
EP (1) EP4090888A1 (fr)
DE (1) DE102020100824A1 (fr)
WO (1) WO2021144419A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004053030A1 (de) * 2004-10-30 2006-05-04 Langner, Manfred H. Verfahren zum Herausfiltern von Gerüchen aus einer Luftströmung und Filtervorrichtung mit einem Geruchsfilter
ES2337606T3 (es) * 2005-10-14 2010-04-27 Max Maier Camara de aspiracion de vapor para un evaporador combinado.
DE102007042284A1 (de) 2007-06-07 2008-12-11 Convotherm Elektrogeräte GmbH Rezirkulationshaube
DE102007047356A1 (de) * 2007-10-02 2009-04-09 Langner, Manfred H. Verfahren und Vorrichtung zum Reinigen eines heißen Luftstroms
DE202011050141U1 (de) 2011-05-16 2011-06-24 Rational AG, 86899 Dunstabzugshaube für ein Gargerät und Einheit mit Gargerät und Dunstabzugshaube
DE202015104361U1 (de) * 2015-08-18 2016-11-21 MKN Maschinenfabrik Kurt Neubauer GmbH & Co. KG Dunstabzugshaube für ein Gargerät sowie Gargerät mit einer solchen Dunstabzugshaube
DE102016113356A1 (de) * 2015-08-18 2017-02-23 MKN Maschinenfabrik Kurt Neubauer GmbH & Co. KG Dunstabzugsvorrichtung für eine Fritteuse sowie Gargerät in Form einer Fritteuse

Also Published As

Publication number Publication date
DE102020100824A1 (de) 2021-07-15
US20230044026A1 (en) 2023-02-09
WO2021144419A1 (fr) 2021-07-22

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