EP2334989A2 - Dunstabzugshaube - Google Patents
DunstabzugshaubeInfo
- Publication number
- EP2334989A2 EP2334989A2 EP09778502A EP09778502A EP2334989A2 EP 2334989 A2 EP2334989 A2 EP 2334989A2 EP 09778502 A EP09778502 A EP 09778502A EP 09778502 A EP09778502 A EP 09778502A EP 2334989 A2 EP2334989 A2 EP 2334989A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fan
- air
- extractor hood
- fan wheel
- ventilation ducts
- 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.)
- Withdrawn
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
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0025—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by zig-zag bend plates
Definitions
- the present invention relates to an extractor hood with a first impeller for suction and discharge of room air and a number of externally arranged around the impeller around vanes for directional deflection of the exiting from the first fan air flow.
- a generic extractor hood is known from the document DE 10 2007 051 942.9. Due to the special arrangement and design of the vanes, it is possible to separate particulate matter contained in the air in a special measure, such as oils and fats on the vanes from the aspirated room air. Because of the high air flow rates through extractor hoods, however, considerable amounts of energy are lost with the heated or cooled room air.
- the heat exchanger is used to heat either outside incoming cold air by means of the outflow warmer room air, thereby avoiding heat loss, or cooled room air, which is blown to the outside, is used to cool inflowing warm air to the lower room temperature. Both types of use serve to reduce energy losses from the building caused by ventilation.
- the object is achieved for a generic hood by a second fan for sucking external air axially offset from the first fan is arranged in the hood and exiting from the first and second fan air flows through formed as a cavity and ventilation ducts forming vanes separated from each other over are walls of the vanes each form a surface for heat exchange between the two air streams.
- the crossover of the air streams in the extractor hood heat exchange is possible. Since a plurality of vanes are provided within the hood to achieve high separation efficiency, the surfaces of these vanes together also form a large area over which heat exchange can occur. Because of the comparatively high flow velocity of the room air through the extractor hood and the normally short conveying paths of the room air from the extractor hood to the outflow opening in a building wall, the possible heat exchange in conventional extractor hoods is very limited. By using the surfaces of the vanes as a kind of cross-flow heat exchanger increases the theoretically possible heat exchange considerably.
- the cold air can be heated with energy taken from the hot air via the wall, and the hot air is cooled down, depending on which direction a heat balance is to be brought about.
- the heat transfer efficiency of the extractor hood rises through the Ie conveyor line.
- a plurality of air ducts may be provided, which are arranged side by side and exchange energy over the common walls and their surfaces.
- at least some of the guide vanes in the region of the second fan wheel must be designed as a cavity in order to allow a separate cross-leadership of the air flows past each other.
- the inventive use of the guide vanes in the hood as ventilation ducts it is possible to perform the first and second fan associated ventilation ducts in the hood parallel to each other, without having to provide additional deflections. Because of the low flow direction deflections, the ventilation ducts generate a comparatively low counterpressure, whereby the energy requirement for the operation of the fan wheels to achieve a certain air flow decreases.
- the ventilation ducts for air removal and outside air supply are arranged annularly outside around the fan wheels around, the ventilation channels assigned to the first fan have a height which extends into the area of the second fan wheel, but only one opening to the first fan wheel and the second fan Rad associated ventilation ducts have a height, which extends into the region of the first fan, llibraryerrad bath but only have an opening to the second fan.
- the first and the second fan are separated by a separating the respective air streams from each other and arranged between them partition.
- the partition allows optimization of the respective air flows in the area of the respective fan wheels.
- the dimensions of the hood according to the invention can be kept compact.
- a single partition allows a good exchange of energy between "warm” and “cold” air in the fan wheels.
- At least the walls of the ventilation channels assigned to the first fan wheel have a course curved in the radial direction to the fan wheel.
- the curvature of the ventilation duct in a direction radial to the fan wheel the air flow is deflected. The deflection can, if the blades of the fan wheels are designed accordingly, lead to a deceleration of the air flow while increasing the air pressure.
- the Abbrems therefore lead in moving airflow particles with a specific density different from the air to a trajectory, which differs from the flow path of the air passing through this area, it is possible to use the walls of the ventilation duct for the moving in the air flow particles , such as oils or fats from cooking fumes, by colliding with the surface of the wall and sticking there until they are removed in a later cleaning.
- the particles are collected in a zone close to the fan wheels is and therefore still in an area that is easily accessible, in particular, when the fan wheels or at least one of the fan wheels is located directly behind or in the immediate vicinity of the suction opening of the hood. Due to the curvature of the guide vanes in the radial direction but also the available surface for heat exchange is increased because the walls extending in the radial direction have a greater length and thus surface.
- the ventilation channels associated with the first fan open in an annular discharge opening, and the inner wall of the discharge opening defines a receiving opening, from which incoming outside air can be supplied to the air guide channels associated with the second fan.
- the annular discharge opening distributes and evenly distributes the air streams flowing in from individual air ducts over the entire available installation space and thus directs the air streams into an exhaust pipe in a uniform flow.
- the outer wall of the annular discharge opening may have a bell shape adapted to the flow conditions in the interior. A bell shape is particularly useful if the exhaust pipe, in which the exhaust air flow is introduced, has a smaller cross section than the extractor hood in the region of the second fan wheel.
- the first and second impellers have at least approximately the same air delivery volume.
- the same air flow volume is avoided that under prolonged operation of the extractor hood under or over-pressure conditions in the ventilated building arise. So it is technically impossible that, for example, flue gases of a heating are sucked by a negative pressure in the building.
- guards can be dispensed with, since the cooker hood is technically designed so that the same or at least approximately the same supply and exhaust air flows result.
- the first and the second fan are arranged on a common shaft.
- the first and the second fan are driven by a common drive motor.
- the hood can be operated with only a single drive motor when the blades of the first and second fan wheel promote in opposite directions. The installation and removal of the fan wheels, for example, for cleaning purposes, is simplified because it is the fan wheels to a single component.
- the first fan sucks the incoming room air, pushes it into the ventilation channels associated with the first fan, the room air from the ventilation channels in the discharge port is feasible, and the second fan sucks the incoming outside air, presses them into the the second fan wheel associated ventilation ducts, wherein the outside air from the ventilation ducts in a laterally away from the axis of rotation of the fan wheels can be guided.
- the space is used in addition to the fan wheels to guide the airflow past the fan wheels.
- the dividing walls between the supply and exhaust air streams are used to transfer heat in a desired direction.
- an air duct with a tube-in-tube air duct is connected to the hood.
- the tube-in-tube guide makes it possible to use the length of the conveyor line over which the corresponding air duct is used again for the transfer of heat.
- the ventilation channels assigned to the first and / or second fan wheel are formed by one or more mold parts that are easily removable from one or more of the extractor hoods.
- the molded parts are equipped with appropriate can easily be produced in difficult geometries, for example made of plastic. It can be provided locking and / or positive connections for connecting a molding with the rest of the hood to the mold part tool-less and can grow, for example, for cleaning purposes.
- At least one fan wheel is designed as a molded part which is easily removable from the extractor hood.
- the moldings are easily produced with appropriate tools in difficult geometries, such as plastic. It can be provided locking and / or positive connections for connecting a molding with the rest of the hood to the mold part tool-less and can grow, for example, for cleaning purposes.
- 1 is a schematic cross-sectional view of an extractor hood
- Fig. 3 a schematic view of the vanes.
- an extractor hood 2 is shown in a schematic cross-sectional view, in which the first fan 4 and the second fan 6 can be seen. Outside the fan wheels 4, 6 around guide vanes 8 are arranged. The room air is sucked by the first fan 4 through a suction port 10, accelerated and blown through the first fan 4 associated openings 12 in the laterally bounded by the vanes 8 ventilation ducts. In the area of the guide vanes 8, the air blown into the ventilation ducts flows around the second fan wheel 6, as indicated by the arrows.
- the outside air is sucked in by the second fan 6 through the supply air duct 12 and blown through the second fan wheel 6 associated openings 16 - as also indicated by arrows - in the laterally bounded by the vanes 8 ventilation ducts. Since the first fan 4 is separated from the second fan 6 by a partition wall 18, the respective air currents can not mix in the area of the fan wheels 4, 6. In the exemplary embodiment, the outside air is guided through the ventilation ducts in an area laterally to the first fan 4, where it can enter the room through outlet openings.
- the leading from the first fan 4 to the second fan 6 around ventilation channels are closed to the second fan 6 out, which is indicated in Fig. 1 by the running in this area in a dashed line arrows.
- the leading from the second fan 6 to the first fan 4 around ventilation ducts are closed to the first fan 4 out, which is also indicated in this area by the arrows extending in a dashed line.
- the ventilation ducts in the region of the fan wheels 4, 6 are shown offset from each other to each of the air inlet through the openings 12, 16 can be displayed in the ventilation ducts.
- the exhaust pipe 22 and the supply air duct 14 are in the embodiment as a tube-in-tube air designed guide in which the conveyor line can be used again for heat exchange between the incoming outside air and the outflowing air over the inner wall 24.
- the inner wall 24 is guided into the region of the discharge opening 20, in which it delimits it towards the inside and in which it opens into the receiving opening 26 for receiving the outside air into the region of the second fan wheel 6.
- a drive motor 28 is provided, the drive shaft according to a preferred embodiment is coaxial with the axis of rotation of the first and second fan wheel 4, 6.
- a drive motor 28 so both fan wheels 4, 6 are driven. This makes it possible in a simple manner, to ensure at least approximately the same capacity of the two fan wheels 4, 6, without requiring a synchronization of two drive motors at different speeds of rotation of the fan wheels.
- Fig. 2 is a view of a combined fan 4, 6 is shown.
- the first and second fan 4, 6 may be formed by a single component according to an embodiment of the invention, between which only later advantageously the partition 18 can be introduced.
- the rotating fan wheels 4, 6 suck in the room or outside air from the inside and push them with the fan blades 30 to the outside in the area of the guide vanes.
- the guide vanes 8 are shown in a schematic view.
- the upper vanes 8a are associated with the second impeller 6 and separated by the partition wall 18 from the lower vanes 8b associated with the first impeller 4.
- the guide vanes 8a, 8b are offset from one another by half the distance between one guide vane 8 and the next.
- An arrow shows how an air flow emerging from the first fan 4 enters through an opening 12 in the ventilation channel between two adjacent guide vanes 8a, is deflected upward and by the cavity 32 formed in an upper vane 8b, after is guided above.
- the air flow emerging from the first fan wheel 4 and indicated in FIG. 3 by the arrow can exchange heat with the air flow which enters the ventilation ducts between the power blades 8b from the second fan wheel 6.
- the surfaces 34 are located not only on the fan wheels 4, 6 facing sides of the guide vanes 8a, 8b, but also on the opposite sides, since they also limit one side of a ventilation duct. In this way results in a larger number of guide elements 8, a large, available for the heat exchange between the respective air streams area.
- Fig. 3 the arrow not only a heat exchange in the region of the guide vanes 8b is shown, based on the visible openings in the partition wall 18 can be seen that an air flow generated by the fan 6 also enter into the also provided with a cavity 32 vanes 8a and whose surfaces can use as heat exchange surfaces. The heat exchange then takes place not only in the dashed upper region of the arrow symbolizing the air flow, but also in the lower region, in which the air flow is indicated by the continuous arrow.
- the invention is not limited to the above exemplary embodiment, but can be modified and adapted by a person skilled in the art in a manner that appears suitable for a specific application.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ventilation (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008047974 | 2008-09-18 | ||
DE102009003957.0A DE102009003957B4 (de) | 2008-09-18 | 2009-01-07 | Dunstabzugshaube |
PCT/EP2009/006627 WO2010031524A2 (de) | 2008-09-18 | 2009-09-12 | Dunstabzugshaube |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2334989A2 true EP2334989A2 (de) | 2011-06-22 |
Family
ID=41693931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09778502A Withdrawn EP2334989A2 (de) | 2008-09-18 | 2009-09-12 | Dunstabzugshaube |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110171898A1 (de) |
EP (1) | EP2334989A2 (de) |
KR (1) | KR20110056404A (de) |
CN (1) | CN102159893A (de) |
DE (1) | DE102009003957B4 (de) |
WO (1) | WO2010031524A2 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20121342A1 (it) * | 2012-07-31 | 2014-02-01 | Elica Spa | Modulo per cappe aspiranti |
DE102014115286A1 (de) * | 2013-10-21 | 2015-04-23 | Georg Emanuel Koppenwallner | Abzugsvorrichtung, insbesondere Dunstabzugsvorrichtung |
WO2016116871A1 (en) | 2015-01-22 | 2016-07-28 | Elica S.P.A. | Suction grid for an air guide of a domestic hood, air guide having such grid and domestic hood having such air guide. |
US10088181B2 (en) * | 2015-12-16 | 2018-10-02 | Amazon Technologies, Inc. | Passive roof exhausting system |
CN106500151A (zh) * | 2016-10-28 | 2017-03-15 | 沈阳建筑大学 | 一种民宅建筑厨房补风控烟节能系统 |
DE102017217853B4 (de) | 2017-10-06 | 2022-07-07 | Wilhelm Bruckbauer | Kochfeldsystem mit Dunstabzugsvorrichtung |
KR102317436B1 (ko) * | 2021-05-28 | 2021-10-25 | 조성은 | 미세먼지 저감 기능을 가지는 에너지 절약형 후드 |
CN113446646B (zh) * | 2021-07-20 | 2022-11-01 | 绍兴凯森厨卫有限公司 | 一种吸油烟机净化装置 |
Family Cites Families (29)
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US1957971A (en) * | 1930-06-24 | 1934-05-08 | Perry S Martin | Ventilator |
NO119851B (de) * | 1967-01-30 | 1970-07-13 | Nordisk Ventilator | |
US3557681A (en) * | 1968-01-25 | 1971-01-26 | Nordisk Ventilator | Fan for the ventilation of buildings, e.g. stables |
DE1901361B2 (de) * | 1968-01-29 | 1972-09-14 | Baumann, Ludwig, Niederhelfenschwil, St. Gallen (Schweiz) | Raumventilator mit gleichzeitiger foerderung von zugluft und fortluft, insbesondere mit absperroganenfuer beide luftstroeme |
US3513766A (en) * | 1968-06-24 | 1970-05-26 | Willard K Ahlrich | Ventilating hood |
GB1246935A (en) * | 1969-03-24 | 1971-09-22 | Jean Hauville | Improvements in or relating to air exchanging and conditioning device |
US3601184A (en) * | 1969-06-05 | 1971-08-24 | Jean Hauville | Air exchanging and conditioning device |
CA937093A (en) * | 1970-11-16 | 1973-11-20 | Nordisk Ventilator Co. Aktieselskab | System for the ventilation of buildings |
JPS52119506A (en) * | 1976-03-31 | 1977-10-07 | Shinichi Itayama | Reversible fans of silocco fan type ventilation |
JPS52119507A (en) * | 1976-03-31 | 1977-10-07 | Shinichi Itayama | Reversible fans for plate type ventilation |
SE406123B (sv) * | 1976-11-30 | 1979-01-22 | Mets Ilmar | Spisventilator |
US4098616A (en) * | 1977-03-07 | 1978-07-04 | Elsters, Inc. | Recirculating dishwasher hood |
US4506655A (en) * | 1981-02-03 | 1985-03-26 | Kuechler Irvin R | Compact double fan apparatus and method with grease-separating capabilities |
CH658899A5 (en) * | 1983-06-03 | 1986-12-15 | Sulzer Ag | Room air-conditioning device |
US5163869A (en) * | 1991-12-05 | 1992-11-17 | George C. Yeh | Method and apparatus for ventilating gases containing condensable vapors |
JP2609208B2 (ja) * | 1995-03-08 | 1997-05-14 | 善洋 山田 | 調理場用の排気装置 |
CH690376A5 (de) * | 1996-03-22 | 2000-08-15 | Ricardo Dr Bernasconi | Dunstabzugsvorrichtung für Kochherde. |
US6506109B1 (en) * | 2001-08-03 | 2003-01-14 | Fisher Hamilton, Inc. | Fume hood with air chamber |
US6530743B1 (en) * | 2001-11-13 | 2003-03-11 | Terry Thomas Barrett | Heat transfer fan |
JPWO2004051152A1 (ja) * | 2002-11-29 | 2006-04-06 | 山田 善洋 | 給排気型レンジフード |
CA2424378C (en) * | 2003-04-03 | 2009-01-06 | Peter Yeung | Kitchen range hood motor housing and fan |
US7320636B2 (en) * | 2004-01-20 | 2008-01-22 | Greenheck Fan Corporation | Exhaust fan assembly having flexible coupling |
US7682231B2 (en) * | 2004-01-20 | 2010-03-23 | Greenheck Fan Corporation | Exhaust fan assembly |
US7018171B2 (en) * | 2004-01-23 | 2006-03-28 | Airex Inc. | Blower with double inlet wheel |
EP1794507B1 (de) * | 2004-09-23 | 2013-05-01 | CSR Building Products Limited | Hybridventilator |
US20060157048A1 (en) * | 2004-12-17 | 2006-07-20 | Heilman Nikolaus J | Grease extraction system, particulate extractor, and method |
NL1029280C1 (nl) * | 2005-06-17 | 2006-12-19 | Fiwihex B V | Behuizing met een koeling. |
DE102005033224A1 (de) | 2005-07-15 | 2007-01-18 | BSH Bosch und Siemens Hausgeräte GmbH | Dunstabzugshaube und Dunstabzugsvorrichtung |
DE102007051942A1 (de) | 2007-10-29 | 2009-04-30 | Boiting, Hans-Hermann, Prof. | Luftabsaugvorrichtung |
-
2009
- 2009-01-07 DE DE102009003957.0A patent/DE102009003957B4/de not_active Expired - Fee Related
- 2009-09-12 US US13/119,774 patent/US20110171898A1/en not_active Abandoned
- 2009-09-12 CN CN2009801364981A patent/CN102159893A/zh active Pending
- 2009-09-12 WO PCT/EP2009/006627 patent/WO2010031524A2/de active Application Filing
- 2009-09-12 KR KR1020117008017A patent/KR20110056404A/ko not_active Application Discontinuation
- 2009-09-12 EP EP09778502A patent/EP2334989A2/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2010031524A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2010031524A2 (de) | 2010-03-25 |
CN102159893A (zh) | 2011-08-17 |
DE102009003957B4 (de) | 2020-12-17 |
KR20110056404A (ko) | 2011-05-27 |
WO2010031524A3 (de) | 2010-06-17 |
US20110171898A1 (en) | 2011-07-14 |
DE102009003957A1 (de) | 2010-03-25 |
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Effective date: 20160601 |
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Owner name: INTER ABLUFTTECHNIK GMBH |
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Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20161202 |