EP1120607B1 - Dispositif pour un four d' échauffement muni d'une porte - Google Patents

Dispositif pour un four d' échauffement muni d'une porte Download PDF

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Publication number
EP1120607B1
EP1120607B1 EP01109741A EP01109741A EP1120607B1 EP 1120607 B1 EP1120607 B1 EP 1120607B1 EP 01109741 A EP01109741 A EP 01109741A EP 01109741 A EP01109741 A EP 01109741A EP 1120607 B1 EP1120607 B1 EP 1120607B1
Authority
EP
European Patent Office
Prior art keywords
exhaustion
oven
door
air
hot air
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.)
Expired - Lifetime
Application number
EP01109741A
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German (de)
English (en)
Other versions
EP1120607A2 (fr
EP1120607A3 (fr
Inventor
Wolfgang Schmidt
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.)
We-Ma Werkzeug und Maschinenbau Wolfgang Schmidt GmbH
Original Assignee
We-Ma Werkzeug und Maschinenbau Wolfgang Schmidt GmbH
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.)
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Publication date
Application filed by We-Ma Werkzeug und Maschinenbau Wolfgang Schmidt GmbH filed Critical We-Ma Werkzeug und Maschinenbau Wolfgang Schmidt GmbH
Publication of EP1120607A2 publication Critical patent/EP1120607A2/fr
Publication of EP1120607A3 publication Critical patent/EP1120607A3/fr
Application granted granted Critical
Publication of EP1120607B1 publication Critical patent/EP1120607B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/025—Doors specially adapted for stoves or ranges with air curtain closures

Definitions

  • the invention relates to a device for a heating furnace provided with an oven door - in particular for an oven, in the furnace chamber during heating operations, such as frying operations, hot air, especially vapors forms - for a suction of the hot air by means of a suction device Suction opening is provided.
  • EP-A-0 962 708 There is a canned open with releasable by opening the open door outlet openings through which set by means of a fan and by a door opening switch in motion a cooling air flow escapes, which is directed against the ascending from the open air space hot air.
  • the solution may mitigate the upward heat effect on the operator, but can not sufficiently prevent the odor nuisance associated with the outflow of open-air interior air.
  • one or more suction openings open in the vicinity of the door opening gap in the furnace chamber.
  • the suction device may additionally be designed as a door air extraction system which is effective when the door is open at least partially, the door air suction device being designed and the suction openings being arranged in the heating furnace such that the hot air in the heating furnace opens when the oven door opens, forming an opening gap Door air extraction from the opening gap is kept as far away as possible, so as not to escape from the opening gap.
  • the switch can not only act as an on and / or off switch of the suction device or with respect to the throttle valve, but also be designed so that it also varies the suction effect in terms of intensity.
  • the suction device according to the invention is controlled by the switch and operated exclusively before opening the oven door with a short time the hot air / the vapors from the open space removing Absaugintenstician.
  • the switch is preferably located at the front of the heating furnace and is also preferably manually switched by the operator.
  • the switch is further coupled to a logic that triggers a time-delayed deactivation of the suction device or a closing of the throttle valve or even a reduction of the suction effect.
  • the logic can only consist in a delay of deactivation by a constant time, namely in a sufficient suction of the Wrasens or the hot air is ensured to allow opening of the oven door without annoyance by outflowing furnace internal air or even to a temperature sensor and the fall below a temperature limit to be coupled.
  • time and / or temperature controlled first suction of the furnace internal air is effected and subsequently optionally under reduced suction and coupled to the opening of the door, a door air extraction is additionally activated.
  • the operator can also be displayed in a time-controlled and / or temperature-controlled manner when the oven door is to be opened.
  • the Mitiereabsaugvorraum may have a control device with the opening of the oven door, the door air extraction is switched on or changed in Absaugrial, the Mosiereabsaugung is switched by a additionally opening when the door door Matschalter or effected by time-delayed switching of the switch of the suction device become.
  • one or more suction openings of the door air extraction in the vicinity of the door opening gap open into the furnace chamber can be detected improved.
  • the hot air can be introduced from the furnace door in the suction of the suction by a device in Mat Kunststoffabsaug Kunststoffrohr between the suction at the opening gap of the furnace chamber and the junction of this tube into the tube of the suction device , such as a throttle valve, which releases the Mit Kunststoffabsaugluftrohr by the action of the switch and / or by opening the oven door completely or partially, wherein in mitluftabsaugluftrohr an additional Schottingabsaugvorraum may be provided.
  • the additional front door air extraction is preferably only active when opening the oven door.
  • the suction effect of the door air extraction can e.g. be adjustable by a throttle. Furthermore, suction openings connected to suction channels in the oven door can be provided, via which hot air can be sucked away from the opening gap. By the above measures, an air curtain can be formed at the opening region of the furnace chamber, which prevents the escape of hot air from the furnace chamber as much as possible.
  • the Mosluftabsaugung is preferably effective only when opening or just before opening.
  • the suction effect on a control unit e.g. a control switch
  • the effect of the suction device including the door air extraction can be varied manually and electronically controlled and possibly reset to zero.
  • the position of the throttle valve (s) is adjustable by means of Matorialabsaugschalters.
  • a planar air curtain is formed, which prevents the escape of hot air from the furnace space as much as possible.
  • the hot air is first cleaned from the oven before draining from the heating furnace in a filter and then optionally additionally cooled in a cooler.
  • the filter may be, for example, a stainless steel filter.
  • the cooler may be a liquid bath, in particular a water bath. Filter and the cooler can be advantageously arranged below the oven.
  • the filter and the radiator are a treatment unit, which are interchangeable by a front, closed with a flap opening.
  • the suction device can be used expediently for removing the gases which form during the pyrolytic cleaning of the furnace interior.
  • a part of a fitted kitchen is shown.
  • This part of the fitted kitchen consists of a kitchen stove (1), a fume hood (2) for kitchen fumes above the cooker, both of which are arranged on a kitchen wall (3).
  • This arrangement is to be regarded as exemplary.
  • Kitchen stove (1) and fume hood (2) for the kitchen fumes can also be arranged in the middle of a kitchen, as it is seen in large enough kitchens and commercial kitchens, because the stove can then be served from all sides.
  • the vapor outlet then runs upwards as an exposed tube.
  • the exhaust pipe (4) of the fume hood (5) from the kitchen stove (1) extends in the kitchen wall (3) in a duct, not shown.
  • Fig. 2 shows a variant of the leadership of the exhaust pipe (4) as a flat tube before or directly on the kitchen wall (3).
  • the kitchen stove (1) is shown in Figs. 1 and 3 cut open, so that the oven (6), as a furnace muffle or oven known, appears on average.
  • the oven chamber (7) is provided with an oven door (8).
  • the oven door (8) is shown in the closed and in Fig. 3 in the open position.
  • a discharge opening (9) is located in the rear area (13), one or more further discharge openings (10) above and laterally in the front region (14) of the oven wall (15) in the vicinity of the opening gap (14a), which forms when an operator begins to open the oven door (8).
  • the number of provided vent openings (10) in the front region (14) depends on the needs of the respective oven (7). The embodiment is just to be considered as clearly exemplifying this point.
  • a cooking fume hood (5) belonging to the cooking appliance and serving as a suction device has an exhaust fan, not shown, which sucks the hot air, the vapors, via the exhaust air pipe (11). Therefore, in order to restrict the suction during operation of the suction device by operating the switch (18) on the rear oven area (13), in the heating mode, the exhaust air pipe (12) by means of a throttle valve (16) is closed, which only when opening the oven door ( 8) opens.
  • the opening of the throttle valve (16) is a switch (17).
  • In the exhaust air pipe (12) is still another acting as a take-off device Wrasenabzug (5 a), which together with the throttle valve (16) can be switched on.
  • a time advance can be set. Also, the suction power can be increased at this moment.
  • the oven door can then only open when an effective extraction through the opening (9) and possibly the door suction on the pipe (12) in addition has been activated.
  • a mechanical lock can be provided which blocks door opening for a few seconds.
  • the switch (18) is usually set the highest suction. In order not to damage the baking of sensitive goods, such as cakes, it is intended to set the output of the fume hood (5), or both fume hoods (5) and (5a) for the period of the oven door opening as desired.
  • the switch (18) is provided as controllable, with which the suction power can be reset by hand to zero.
  • the Wrasenabzug (5) is constantly under operation with lower suction, the actually pulse-like suction of Wrasens from the open interior by activating the switch (18) before opening the oven door (8) is effected and the front suction with the fume hood (5a) only when opening the oven door is put into operation.
  • the Wrasenabzug (5a) falls away and the suction of Wrasens is effected after activation of the switch (18) solely by the vapor outlet (5).
  • Fig. 3 shows the suction effect in the front region (14) of the oven (6). It can be seen that the above a roast (19), such as a goose, forming vapors when opening the oven door (8) from the thereby forming opening gap (14a) in the exhaust pipes (11) and (12) is sucked and so does not escape to the outside. The movement of the Wrasenströme is indicated by the arrows (20) and (29).
  • suction channels (21) are provided, which terminate at suction openings (23) which are open to the oven chamber (7). It can be seen from the movement arrows (24) how the hot air is torn away from the opening gap (14a). A further improvement is achieved if further suction openings (25) and (26) are provided which are connected to the suction channel (s) ) are connected.
  • FIG. 5 It is also conceivable and shown in Fig. 5, to form an air curtain (27).
  • the air would then flow in the front upper region (14), for example, from nozzles (28) down.
  • the vapor is led backwards in the direction of the arrows (29).
  • suction openings (30) Through suction openings (30), the air of the air curtain (27) through the connecting channel (31) for vapor withdrawal (5) is passed.
  • the direction of flow of the air curtain (27) can of course also run inversely from bottom to top.
  • a treatment of Wrasens is shown for the case in which the vapor is not to be dissipated hot and as little as possible dirt.
  • the hot indicated by the arrows (20) air is sucked through the suction openings (10) in the suction air pipe (12) when opening the oven door (8) .
  • a suction device (5a) enhances the suction effect, previously a further part of the hot air has been sucked down through the suction opening (9) and a suction pipe (33), where the suction pipe (33) is sucked out (12) opens.
  • the hot air flows in the suction pipe (33) finally united in a filter (34).
  • the filter (34) may be a stainless steel filter and the cooler (35) a water bath.
  • the filter (34) and the cooler (3) are arranged below the heating furnace (6).
  • a water basin (35) in which the air in the filter (34) flows in and cools.
  • the vapor outlet (5) sucks the now cleaned and cooled air into the flue pipe (4), which leads directly to the outside or into the vapor outlet (2) for the kitchen fumes.
  • the filter (34) and serving as a cooler (35) water basin are summarized as a treatment unit (36) which is arranged behind a flap (37).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
  • Electric Stoves And Ranges (AREA)
  • Tunnel Furnaces (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Claims (9)

  1. Dispositif pour un four de chauffage (1) muni d'une porte (8), dans l'enceinte (7) duquel de l'air chaud, en particulier de la vapeur, se forme au cours des processus de chauffage, dans lequel est prévue une aspiration au moyen d'un ou de plusieurs orifices d'aspiration (9, 10) et d'un dispositif d'aspiration, les orifices d'aspiration (9, 10) étant disposés à l'intérieur du four de chauffage (1) même lorsque la porte du four (8) est fermée, caractérisé en ce que
    - le dispositif d'aspiration (5, 5a), commandé par un commutateur (18), est mis en service, au moins partiellement avant l'ouverture de la porte du four (8), voire uniquement avant l'ouverture de la porte du four, avec une intensité d'aspiration qui évacue pendant un court laps de temps l'air chaud hors de l'enceinte du four, ou le commutateur (18) renforce l'action d'aspiration d'un dispositif d'aspiration (5), qui est en permanence en service, le dispositif d'aspiration (5, 5a) étant conçu de telle sorte que l'aspiration générée au moins partiellement avant l'ouverture de la porte du four (8) permet de réduire l'évacuation de l'air chaud ou de la vapeur hors de la fente d'ouverture (14a) de la porte,
    - le commutateur (18) est un interrupteur marche/arrêt du dispositif d'aspiration ou l'intensité de l'action d'aspiration peut être variée et, le cas échéant, le commutateur (18) est couplé en outre à un composant logique, qui déclenche une désactivation retardée, dans le temps du dispositif d'aspiration ou une diminution de l'action d'aspiration, et
    - l'air chaud aspiré est guidé à travers un tube sous vide (4) directement vers l'extérieur, en étant guidé à travers le tube sous vide (4) par l'intermédiaire de la bouche d'aération vers l'extérieur ou en étant guidé par l'intermédiaire d'un dispositif de filtrage dans le tube sous vide (4) vers l'extérieur.
  2. Dispositif selon la revendication 1, caractérisé en ce qu'un ou plusieurs orifices d'aspiration (10) débouchent dans l'enceinte du four (7) à proximité de la fente d'ouverture (14a) de la porte.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que, en présence d'un dispositif d'aspiration (5) en service en continu pendant l'utilisation du four, l'air chaud en s'écartant de la porte du four (8) est guidé dans l'air d'aspiration du dispositif d'aspiration, et dans le tube d'aspiration d'air à la porte (12), entre les orifices d'aspiration (10), au niveau de la fente d'ouverture (14a) de l'enceinte du four (7), et l'embouchure de ce tube (12) dans le tube (4) du dispositif d'aspiration, il est prévu un dispositif, tel qu'un clapet d'étranglement (16), qui libère totalement ou partiellement le tube d'aspiration d'air à la porte (12) par la manoeuvre du commutateur (18) et/ou par l'ouverture de la porte du four (8), un dispositif d'aspiration d'air à la porte (5a) supplémentaire pouvant être prévu dans le tube d'aspiration d'air à la porte (12).
  4. Dispositif selon une ou plusieurs des revendications 1 à 3, caractérisé en ce que l'action d'aspiration du système d'aspiration d'air à la porte peut être réglée par l'intermédiaire d'un clapet d'étranglement (16).
  5. Dispositif selon une ou plusieurs des revendications 1 à 4, caractérisé en ce qu'il est prévu dans la porte du four (8) des orifices d'aspiration (23, 25), qui sont reliés à des canaux d'aspiration (21) et par l'intermédiaire desquels l'air chaud peut être aspiré hors de la fente d'ouverture (14a).
  6. Dispositif selon une ou plusieurs des revendications 1 à 5, caractérisé en ce que, dans la zone d'ouverture (14) de l'enceinte du four (7), il est formé un rideau d'air (27), qui empêche si possible en grande partie l'échappement de l'air chaud hors de l'enceinte du four (7) vers l'extérieur.
  7. Dispositif selon une ou plusieurs des revendications 1 à 4, caractérisé en ce que, avant leur guidage hors du four de chauffage (1), l'air chaud ou la vapeur générés dans l'enceinte du four (7) sont tout d'abord épurés dans un filtre (34) et sont ensuite refroidis dans un refroidisseur (35).
  8. Dispositif selon la revendication 7, caractérisé en ce que le filtre (34) et le refroidisseur (35) forment une unité de traitement (36), qui peut être remplacée à travers un orifice avant, fermé par un abattant (37).
  9. Dispositif selon une ou plusieurs des revendications 1 à 8, caractérisé en ce que le composant logique a pour fonction de retarder la désactivation du dispositif d'aspiration pendant un intervalle de temps constant ou est commandé par un capteur de température et par le franchissement, en décroissance d'une valeur limite de température.
EP01109741A 2000-04-20 2001-04-20 Dispositif pour un four d' échauffement muni d'une porte Expired - Lifetime EP1120607B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10019934A DE10019934A1 (de) 2000-04-20 2000-04-20 Vorrichtung für einen mit einer Ofentür versehenen Erhitzungsofen
DE10019934 2000-04-20

Publications (3)

Publication Number Publication Date
EP1120607A2 EP1120607A2 (fr) 2001-08-01
EP1120607A3 EP1120607A3 (fr) 2002-05-02
EP1120607B1 true EP1120607B1 (fr) 2006-04-12

Family

ID=7639675

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01109741A Expired - Lifetime EP1120607B1 (fr) 2000-04-20 2001-04-20 Dispositif pour un four d' échauffement muni d'une porte

Country Status (3)

Country Link
EP (1) EP1120607B1 (fr)
AT (1) ATE323263T1 (fr)
DE (2) DE10019934A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200010253A1 (it) * 2022-05-17 2023-11-17 Elica Spa Elettrodomestico per la cottura di pietanze e relativo metodo di utilizzo

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
CH711637B1 (en) * 2004-07-21 2017-04-13 V-Zug Ag Cooking appliance with controllable ventilation.
KR100788810B1 (ko) * 2005-03-31 2007-12-27 엘지전자 주식회사 조리기기
US7282674B2 (en) * 2006-02-17 2007-10-16 Alto-Shaam, Inc. System and method for limiting the escape of heat and steam from an open oven door
EP2013543B1 (fr) 2006-04-28 2016-01-27 Arçelik Anonim Sirketi Four
PL2524171T3 (pl) 2010-01-13 2018-03-30 Oy Halton Group Ltd. Sposób dotyczący okapu wyciągowego pieca i urządzenie
DE102010007286A1 (de) * 2010-02-08 2011-08-11 fischer automotive systems GmbH & Co. KG, 72160 Backofen
EP3091291A1 (fr) * 2015-05-08 2016-11-09 Electrolux Appliances Aktiebolag Four de cuisson avec une cavité de four et une porte de four

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE8308713U1 (de) * 1983-03-24 1983-07-14 Buderus Ag, 6330 Wetzlar Wrasenabzugseinrichtung fuer einen backofen

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US3858568A (en) * 1973-12-12 1975-01-07 Raytheon Co Oven vent hood
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DE2705395B2 (de) * 1977-02-09 1980-08-07 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart Herd
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DE4324507A1 (de) * 1993-07-21 1995-01-26 Bosch Siemens Hausgeraete Backofen
ATE222696T1 (de) * 1996-03-18 2002-09-15 Electrolux Ab Heizeinheit für öfen
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Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE8308713U1 (de) * 1983-03-24 1983-07-14 Buderus Ag, 6330 Wetzlar Wrasenabzugseinrichtung fuer einen backofen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200010253A1 (it) * 2022-05-17 2023-11-17 Elica Spa Elettrodomestico per la cottura di pietanze e relativo metodo di utilizzo
WO2023223121A1 (fr) * 2022-05-17 2023-11-23 Elica S.P.A. Appareil électroménager de cuisson d'aliments et procédé de fonctionnement associé

Also Published As

Publication number Publication date
DE10019934A1 (de) 2001-10-31
ATE323263T1 (de) 2006-04-15
EP1120607A2 (fr) 2001-08-01
DE50109468D1 (de) 2006-05-24
EP1120607A3 (fr) 2002-05-02

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