WO2010149328A1 - Hotte aspirante - Google Patents

Hotte aspirante Download PDF

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Publication number
WO2010149328A1
WO2010149328A1 PCT/EP2010/003737 EP2010003737W WO2010149328A1 WO 2010149328 A1 WO2010149328 A1 WO 2010149328A1 EP 2010003737 W EP2010003737 W EP 2010003737W WO 2010149328 A1 WO2010149328 A1 WO 2010149328A1
Authority
WO
WIPO (PCT)
Prior art keywords
supply air
air flow
flow
opening
air
Prior art date
Application number
PCT/EP2010/003737
Other languages
German (de)
English (en)
Inventor
Udo Berling
Original Assignee
Udo Berling
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 Udo Berling filed Critical Udo Berling
Priority to EP10739487A priority Critical patent/EP2446195A1/fr
Priority to CN2010800352284A priority patent/CN102483240A/zh
Priority to US13/380,523 priority patent/US20120160230A1/en
Publication of WO2010149328A1 publication Critical patent/WO2010149328A1/fr

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J11/00—Devices for conducting smoke or fumes, e.g. flues 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation

Definitions

  • the present invention relates to an extractor hood with a suction opening for the discharge of exhaust air and a supply air opening for supplying supply air, which is arranged adjacent to the suction opening.
  • Extractor hoods have significant air flow rates to remove cooking fumes during cooking as completely as possible from the kitchen space. In order to capture all cooking fumes, it is not sufficient in the conventional art to suck only these, but it must be transported away a multiple of the cooking fumes corresponding volume of air.
  • the documents DE 10 2005 033 224 A1 and DE 10 2005 024 631 disclose the positioning of supply air openings at some distance from the suction opening.
  • the directional arrows which illustrate the flow pattern of the supply air, swivel directly from the supply air opening in the direction of the suction opening. In this way, the supply air entering the kitchen space is conducted directly into the extraction opening in a type of short-circuit operation so that it can not be used to meaningfully support the removal of cooking fumes.
  • the object is achieved for a generic extractor hood by the supply air opening is arranged and designed so that the outflow from the inlet air supply air is directed in one of the flow direction of the inflow to the exhaust air flow in the opposite direction and flanking the exhaust air flow laterally via a conveyor line.
  • the supply air flow according to the invention is therefore not blown directly into the exhaust air flow or in the same flow direction as the exhaust air flow, but in the opposite direction, which does not have to be set exactly opposite, but at least substantially, deviations by up to 20 ° in the Flow direction are possible.
  • the lateral flanking of the exhaust air flow with the supply air flow two significant effects are achieved: on the one hand results in a kind of flow cage, from which the exhaust air from the exhaust air flow can no longer escape into the room air, so that a secure detection and removal of the cooking fumes in the exhaust air stream reached
  • flanking the exhaust air flow prevents the extractor hood from sucking in room air from the immediate vicinity of the extractor hood.
  • the supply air flow acts as a kind of veil around which room air can be sucked in only under its lower end. Within the veil forms a flow chimney, through which the exhaust air flows to the suction opening. Between the boundary layers of Zu Kunststoff- and exhaust air flow only a comparatively low gas exchange takes place because the gas masses flowing past each other have different directions of movement, whereby the cooking fumes remain in the exhaust air stream and can hardly mix with the rest of the room air.
  • the flow rate of the supply air flow and the kinetic energy contained therein decrease with increasing distance of the supply air flow to the supply air opening.
  • the supply air flow entrained adjacent room air and increases in volume, but also slowed down.
  • Due to the suction of the exhaust air flow the flow direction of the supply air flow changes more and more in the direction of the exhaust air flow, so that there is an increasingly arcuate course of the supply air at some distance of the supply air from the supply air.
  • the supply air flow finally splits into a part which part of the exhaust air flow and flows to the suction opening, and a part which continues the arcuate course of the air flow, completed into a circle and reunited on the inside of the supply air flow with this.
  • the cooking fumes can hardly be mixed with the surrounding room air.
  • the cooking fumes are removed very effectively.
  • the induction effects increase the amount of air moving with the supply air flow, which is also directed to the area of the cooking zone. So far as cooking fumes manage at all to penetrate the supply air flow, they are pulled back into the exhaust air flow via the induced room air.
  • the conveying effect of the supply air flow generated by the air vortex the delivery rate can be improved and thus the energy consumption of the fan for generating the exhaust air flow can be reduced.
  • Another advantage of the supply air guide according to the invention results from the fact that even a large part of the supplied supply air is not mixed with the room air, but first circulated in the air vortex and then directly leaves the kitchen room again via the exhaust air flow.
  • the room air is not unnecessarily heated or cooled by the supply air, but remains largely uninfluenced in the kitchen space. Energy losses are thus limited to a low level. Otherwise possible unpleasant draft effects in the kitchen are also reduced so much.
  • the shape and size of the supply air opening should be adapted to the desired shape and size of the supply air. In most cases, a slit-like rectangular design of the inlet opening should be sufficient. Depending on the desired shape and effect of the Zu Kunststoffnes generated with the supply air, however, other configurations can be selected.
  • the blowing direction, the blowing volume and blowing speed of the supply air are adapted to the exhaust air flow that forms spaced from the hood during their operation a stagnant air vortex whose direction of rotation is directed from the outside to the exhaust air flow.
  • the coordination of the shape and other technical data of the supply air flow on the shape and technical data of the exhaust air flow is also dependent on the shape and size of the extractor hood itself and the air flow rates that are to be achieved in the exhaust air stream. For the vote of the respective sizes to each other also plays a role, how far from the hood spaced the standing air vortex form and how big this should be.
  • the extractor hood is a wall or built-in hood, it may be sufficient to shield the exhaust air flow only from the room side to the room air, since the rear wall already forms a fixed boundary and only loses small amounts of cooking fumes for the extraction via the sides can go.
  • a second supply air flow may be provided in support of the rear wall.
  • freely hanging hoods it is possible to shield several sides by a supply air flow.
  • round extractor hoods it is possible to produce a round standing air vortex spaced from the extractor hood.
  • the supply air flow is guided at least in sections along a lateral wall.
  • the supply air flow is not designed to blow freely in the space in such a section, but it is limited laterally. Thereby, the range of the supply air flow can be increased, because there are no induction effects on the wall side, by which the air flow would be slowed down, and the supply air flow is aligned more precisely to a point.
  • the lateral wall can shield the supply air flow as desired to the room air or the exhaust air flow.
  • the wall can be designed to be adjustable in order to selectively influence the direction of the supply air flow and / or to be able to adapt it to different volume quantities.
  • the lateral wall on an orientation, which is oriented away from the exhaust air flow in relation to the outflow direction of the supply air from the supply air.
  • the space flowed through by the supply air flow fanned out. Due to the Koanda effect, the supply air flow tends to flow along the side wall.
  • an angle of up to 45 ° can open, without causing the supply air flow from tearing off the wall.
  • the extractor hood spaced from the supply air opening on a deflection surface through which the supply air flow is deflected in the direction of the exhaust air flow.
  • the arcuate course of the supply air flow can be deliberately brought about or supported by the deflection surface at one point.
  • the deflection surface is at an angle to the inflowing supply air. It can be designed to be continuous or interrupted. If the deflection surface has a spoiler lip, the admixture of room air into the supply air flow can thereby be increased.
  • As part of the orientation of the supply air flow can also be a transverse distribution of the supply air over the opening width of the supply air opening to equalize the supply air flow.
  • the volume of the supply air flow is a maximum of 40% of the exhaust air flow volume. Due to the smaller volume of the supply air flow, this can increase by induction effects to proportions of the room air to flow together with the supply air through the forming air vortex on the suction. For a safe removal of cooking fumes while the air flow rate of the hood can be lowered compared to previously known extractor hoods. If the supply air volume is too large, the formation of the advantageous air vortex is hindered.
  • the shape and / or size of the supply air opening is adjustable. Due to the adjustability, which may also include the complete closing of individual areas of the supply air opening, it is possible to focus the Zu povertyn on certain hob zones or adapt to different blower levels. Also, an adjustment may be required if the Zu poverty- or exhaust air flow is to be increased or decreased.
  • a part of the exhaust air flow volume in the extractor hood of the supply air opening can be fed by means of a valve.
  • the valve can be configured fixed or adjustable.
  • an air gap in a housing wall is conceivable through which a part of the exhaust air flow is discharged and the supply air opening is supplied. This would mean that part of the exhaust air flow would be circulated.
  • the proportion of fresh air in the supply air can be reduced, for example, in order to avoid excessive cooling or heating of the interior.
  • a separate air blower be dispensed, which causes additional costs and energy.
  • odor or pollen pollution can be reduced by supplied fresh air. It is proposed to divide the exhaust air volume flow only behind a grease separation and / or an activated carbon filter, since in this way only purified exhaust air recirculates again.
  • FIG. 9 is a perspective view of the supply and exhaust air flows at a
  • a fume hood 2 is shown in a schematic side view, which is attached to a wall.
  • the extractor hood 2 has a suction opening 4 and a supply air opening 6. While the supply air Z enters the kitchen space through the supply air opening 6, the exhaust air A exits through the suction opening 4 sucked off the kitchen space.
  • the supply air Z and the exhaust air A are directed in opposite directions.
  • Fig. 2 is shown in more detail in the schematic side view, how the supply air flow 8 and the exhaust air flow 10 behave.
  • the supply air flow 8 emerges from the supply air opening 6 and flows approximately counter to the direction of the exhaust air flow 10. From there, the supply air stream 8 moves counter to the flow direction of the exhaust air flow 10, along the wall 14 present in the exemplary embodiment, until the supply air flow 8 reaches the region of the deflection surface 16. From there, the supply air stream 8 rotates about an approximately 180 ° bend, in order to then run approximately parallel to the exhaust air stream 10. However, after a short parallel flow, the supply air stream 8 continues to turn inward to rotate in an air vortex 12 about a vortex core 20. In this way, a standing air roll is formed, which forms a flow restriction for the exhaust air flow 10 at the top and this therefore leads in a through the air vortex 12 on the protected conveyor line 22.
  • the upstream in the flow direction of the supply air opening 6 channel walls 18 are designed so that the supply air stream 8 is passed at least approximately in the desired flow direction.
  • the supply air flow 8 bends away from the exhaust air flow by a few degrees after exiting the supply air opening, since the wall 14 has an orientation which is oriented in a directional manner in relation to the outflow direction of the supply air from the supply air opening 6 from the exhaust air flow 10.
  • the supply air stream 8 is oriented in its flow direction due to the Kanda effect on the orientation of the wall 14, which leads in the embodiment to the fact that the supply air stream 8 by up to 30 ° upwards from the exhaust air stream 10 runs. This increases the air space in which an air vortex 12 form and can remain there.
  • the formation of air turbulence is supported by the deflection surface 16, through which the supply air stream 8 is deflected in the direction of the exhaust air flow 10.
  • the wall 14 and the deflection surface 16 are therefore not used in an extractor hood 2 according to the invention, exhaust air to suck and forward the recorded exhaust air to the blower, but it may be at the wall 14 and the deflection surface 16 to closed surfaces, which serve solely for the purpose of predetermining and supporting the flow direction of the supply air 8 and the formation of a vortex twirling 12th to promote.
  • FIG. 3 shows the flow conditions of the supply air flow 8 and the exhaust air flow 10 on the basis of flow vectors.
  • the amount of supply air Z is smaller than the amount of exhaust air A. It is also very good to see the course of the flow of the supply air flow 8 to the deflection surface 16 and the rotation of the incoming air stream 8 beginning thereon.
  • the induction region I can be seen that due to the induction of room air taken from the air vortex 12 and is conveyed in the direction of the suction opening 4. This increases the volume of the supply air stream 8, which presses the resulting cooking fumes as exhaust air flow down and from there parallel offset in the direction of the suction opening 4 flows obliquely upwards.
  • Fig. 4 designed as an island hood extractor hood 2 is shown. Since in the island hood according to FIG. 4 the lateral boundary of the suction zone acted on by the extractor hood 2 is missing through a wall, the air hood on opposite sides of the suction opening 4 is in each case one supply air opening 6.
  • the extractor hood 2 also has two walls 14 , which in each case connect to the associated air inlet opening 6. How this configuration of the double air inlet openings 6 affects the air flows is shown in a schematic side view in FIG. 5.
  • the supply air flows 8 after exiting the supply air opening 6 initially substantially in a direction opposite to the flow direction of the exhaust air flow 10, wherein the flow direction is slightly angled through the wall 14, the supply air stream 8 after a flow path in an approximately semicircular flow down and then turned on the suction port 4, then to get into a standing air vortex 12. Also in this schematic cross-sectional view, it is clearly visible that the two air vortices 12 press down the exhaust air flow 10 in an outer area around it, while flanking the protected conveyor section 22 closer to the suction opening 4, in which the exhaust air flow 10 on the Suction opening 4 moved.
  • FIG. 6 shows a schematic view of a round extractor hood from a side view.
  • the supply air is deflected by a plate 24 side.
  • the suction opening 4 In the central region of the plate is the suction opening 4, in which the exhaust air flow 10 flows.
  • form air vortex 12 which limit the exhaust air flow 10 laterally.
  • Fig. 7 is indicated in a view of a round hood 2 by pointing in the radial direction arrows for the supply air Z, that the supply air stream 8 moves away in the radial direction of the supply air opening 6.
  • a flow can be brought about by a corresponding design of the channel walls 18 in the flow direction in front of the supply air openings 6 and also by the 24 bounded by the plate conveyor channel along the underside of the hood 2.
  • the supply air stream 8 is first blown out of the supply air opening 6 in a direction at least substantially opposite the exhaust air flow 10, the supply air flow 8 being diverted away from the general flow direction of the exhaust air flow 10 by lateral angles by a few degrees so that a pocket forms between the supply air stream 8 and the exhaust air stream 10 over a conveying path, in which the supply air stream 8 can form an air vortex 12, which induces room air through a stationary rotation in its outer region, thereby filling the exhaust air stream 10 and in the direction the suction opening 4 passes.

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

Abstract

L'invention concerne une hotte aspirante (2) comportant une ouverture d'aspiration (4) pour l'extraction d'air d'évacuation (A), et une ouverture d'amenée (6) pour l'amenée d'air frais (Z), adjacente à l'ouverture d'aspiration (4). Pour mettre en oeuvre une amenée d'air frais permettant de capturer efficacement les vapeurs de cuisine et de les diriger vers l'ouverture d'aspiration avec des moyens de ventilation simples, l'ouverture d'amenée (6) est disposée et conçue de telle manière que le flux d'air frais (8) sortant de l'ouverture d'amenée (6) est dirigé dans le sens opposé au sens d'écoulement du flux d'air d'évacuation (10) s'écoulant vers l'ouverture d'aspiration (4), et est latéralement adjacent au flux d'air d'évacuation (10) sur une trajectoire de refoulement (F).
PCT/EP2010/003737 2009-06-23 2010-06-22 Hotte aspirante WO2010149328A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10739487A EP2446195A1 (fr) 2009-06-23 2010-06-22 Hotte aspirante
CN2010800352284A CN102483240A (zh) 2009-06-23 2010-06-22 抽烟机
US13/380,523 US20120160230A1 (en) 2009-06-23 2010-06-22 Fume Extraction Hood

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009030220A DE102009030220A1 (de) 2009-06-23 2009-06-23 Dunstabzugshaube
DE102009030220.4 2009-06-23

Publications (1)

Publication Number Publication Date
WO2010149328A1 true WO2010149328A1 (fr) 2010-12-29

Family

ID=43037221

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/003737 WO2010149328A1 (fr) 2009-06-23 2010-06-22 Hotte aspirante

Country Status (6)

Country Link
US (1) US20120160230A1 (fr)
EP (1) EP2446195A1 (fr)
KR (1) KR20120031502A (fr)
CN (1) CN102483240A (fr)
DE (1) DE102009030220A1 (fr)
WO (1) WO2010149328A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN105526610A (zh) * 2015-12-28 2016-04-27 北京厨无忧科技有限公司 一种基于涡流原理的油烟净化方法及油烟净化结构

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DE102007039635A1 (de) * 2007-03-20 2008-09-25 BSH Bosch und Siemens Hausgeräte GmbH Dunstabzugshaube
US9623506B2 (en) 2011-02-01 2017-04-18 Illinois Tool Works Inc. Fume extractor for welding applications
US9821351B2 (en) 2011-11-11 2017-11-21 Illinois Tool Works Inc. Welding fume extractor
KR101934457B1 (ko) 2011-11-17 2019-01-04 삼성전자주식회사 환기 장치와 이를 포함한 환기 시스템
US9505042B2 (en) * 2012-03-16 2016-11-29 Illinois Tool Works Inc. Airborne component extractor with improved power and pressure performance
US9839948B2 (en) 2013-01-29 2017-12-12 Illinois Tool Works Inc. Fume evacuation system
US9272237B2 (en) 2013-06-28 2016-03-01 Illinois Tool Works Inc. Three-phase portable airborne component extractor with rotational direction control
US10808953B2 (en) 2013-06-28 2020-10-20 Illinois Tool Works Inc. Airborne component extractor with baffled debris collection
US10242317B2 (en) 2014-11-25 2019-03-26 Illinois Tool Works Inc. System for estimating the amount and content of fumes
US11530826B2 (en) 2015-07-16 2022-12-20 Illinois Tool Works Inc. Extractor with segmented positive pressure airflow system
US11014132B2 (en) 2015-07-16 2021-05-25 Illinois Tool Works Inc. Extractor with end-mounted positive pressure system
CN106123063B (zh) * 2016-06-29 2019-06-14 珠海格力电器股份有限公司 油烟机
CN107246358B (zh) * 2016-12-16 2019-04-19 腾进科技有限公司 具有高低气压差的全天候自然气压动力发电系统
CN110360683A (zh) * 2018-04-09 2019-10-22 宁波方太厨具有限公司 一种厨房空气调节系统
CN111780178B (zh) * 2020-06-08 2022-07-05 华帝股份有限公司 一种带涡流发生装置的吸油烟机

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EP0511576A2 (fr) * 1991-04-30 1992-11-04 Mitsubishi Jukogyo Kabushiki Kaisha Dispositif d'aspiration de fluides et appareil pour le traitement de fluides
DE4114329A1 (de) * 1991-05-02 1992-11-05 Standard Elektrik Lorenz Ag Dunstabzugshaube mit luftschleier
CH682512A5 (de) * 1990-03-02 1993-09-30 Zurecon Ag Dampfabzugeinrichtung.
EP1094278A2 (fr) * 1999-10-21 2001-04-25 BSH Bosch und Siemens Hausgeräte GmbH Dispositif d'évacuation des fumées
US6621058B1 (en) * 2002-05-23 2003-09-16 Samsung Electronics Co., Ltd. Wall-mounted microwave oven with air curtain guide
DE10209735A1 (de) 2002-03-06 2003-09-18 Manfred H Langner Verfahren und Vorrichtung zum Abführen von Abluft
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DE102005033224A1 (de) 2005-07-15 2007-01-18 BSH Bosch und Siemens Hausgeräte GmbH Dunstabzugshaube und Dunstabzugsvorrichtung
DE202007012095U1 (de) 2006-08-29 2007-11-22 Horber, Thilo Gleichluftsystem für eine Abzugshaube, insbesondere zur Anwendung an einem Kochfeld
DE102006023718A1 (de) 2006-05-19 2007-11-22 BSH Bosch und Siemens Hausgeräte GmbH Dunstabzugsvorrichtung mit Zulüftung
WO2008148712A2 (fr) * 2007-06-06 2008-12-11 Veljko Martic Hotte d'extraction pour cuisine avec agencement innovant

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DE1963456A1 (de) * 1969-12-18 1971-06-24 King Maschinen Gmbh & Co Kg Absauganlage fuer Grillstationen,Herdanlagen u.dgl.
CH682512A5 (de) * 1990-03-02 1993-09-30 Zurecon Ag Dampfabzugeinrichtung.
EP0511576A2 (fr) * 1991-04-30 1992-11-04 Mitsubishi Jukogyo Kabushiki Kaisha Dispositif d'aspiration de fluides et appareil pour le traitement de fluides
DE4114329A1 (de) * 1991-05-02 1992-11-05 Standard Elektrik Lorenz Ag Dunstabzugshaube mit luftschleier
EP1094278A2 (fr) * 1999-10-21 2001-04-25 BSH Bosch und Siemens Hausgeräte GmbH Dispositif d'évacuation des fumées
DE19950817A1 (de) 1999-10-21 2001-04-26 Bsh Bosch Siemens Hausgeraete Dunstabzugsvorrichtung
DE10209735A1 (de) 2002-03-06 2003-09-18 Manfred H Langner Verfahren und Vorrichtung zum Abführen von Abluft
US6621058B1 (en) * 2002-05-23 2003-09-16 Samsung Electronics Co., Ltd. Wall-mounted microwave oven with air curtain guide
DE102005024631A1 (de) 2005-05-30 2006-12-07 BSH Bosch und Siemens Hausgeräte GmbH Dunstabzugsvorrichtung
DE102005033224A1 (de) 2005-07-15 2007-01-18 BSH Bosch und Siemens Hausgeräte GmbH Dunstabzugshaube und Dunstabzugsvorrichtung
DE102006023718A1 (de) 2006-05-19 2007-11-22 BSH Bosch und Siemens Hausgeräte GmbH Dunstabzugsvorrichtung mit Zulüftung
DE202007012095U1 (de) 2006-08-29 2007-11-22 Horber, Thilo Gleichluftsystem für eine Abzugshaube, insbesondere zur Anwendung an einem Kochfeld
WO2008148712A2 (fr) * 2007-06-06 2008-12-11 Veljko Martic Hotte d'extraction pour cuisine avec agencement innovant

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See also references of EP2446195A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105526610A (zh) * 2015-12-28 2016-04-27 北京厨无忧科技有限公司 一种基于涡流原理的油烟净化方法及油烟净化结构

Also Published As

Publication number Publication date
EP2446195A1 (fr) 2012-05-02
DE102009030220A1 (de) 2010-12-30
US20120160230A1 (en) 2012-06-28
CN102483240A (zh) 2012-05-30
KR20120031502A (ko) 2012-04-03

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