EP3485199B1 - Système de ventilation muni d'une hotte aspirante - Google Patents

Système de ventilation muni d'une hotte aspirante Download PDF

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Publication number
EP3485199B1
EP3485199B1 EP17740637.8A EP17740637A EP3485199B1 EP 3485199 B1 EP3485199 B1 EP 3485199B1 EP 17740637 A EP17740637 A EP 17740637A EP 3485199 B1 EP3485199 B1 EP 3485199B1
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Prior art keywords
extractor hood
channel
ventilation assembly
vapour
assembly according
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EP17740637.8A
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German (de)
English (en)
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EP3485199A1 (fr
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Heinrich Wagener
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    • 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
    • F24C15/2028—Removing cooking fumes using an air curtain

Definitions

  • the invention relates to a ventilation arrangement with an extractor hood provided for the extraction of fumes and with a ventilation system according to the preamble of claim 1.
  • a ventilation arrangement with an extractor hood in which, in the area of a separator, filtered exhaust air is taken up via a distribution duct in such a way that a ventilation system that can be adjusted to the respective vapor load is effective.
  • An additional supply line can be integrated into this hood construction in such a way that fresh air can be supplied to the extractor hood in the vicinity of the extractor hood.
  • the vertical air flow in front of the separator is increased by capturing a partial air flow behind the separator and leading it down into the area of the cooking surface, so that an additional direct conveying jet is introduced into the suction air component and disadvantageous eddy formations occur.
  • a generic extractor hood is known, in which, starting from a distribution duct containing a UVC system, a return connection capturing part of the volume of the filtered and disinfected exhaust air is integrated into the multi-layer wall of the hood construction ( WO 2012/055504 A1 ), so that a compact structure with variable adjustment options is achieved.
  • the partial volume of the UV light irradiated and filtered exhaust air in the area behind the separator can either be returned from the distribution shaft or a transfer chamber into the vapor absorption area. A mixture with fresh air is also planned for this professional hood design.
  • U.S. 4,127,106 A A similar construction of a circulation unit is shown in U.S. 4,127,106 A shown, wherein the air is circulated in front of the discharge nozzle by means of a fan.
  • U.S. 4,541,409 a supply air duct and an exhaust air duct are combined in a filter box running in parallel, and with a circulation according to US 2005/0051159 A1 a vertical air jet is generated in the area of a hob.
  • US 2006/0278216 A1 and U.S. 4,438,316 A show respective circulation units.
  • a generic ventilation arrangement according to WO 2013/189598 A1 shows an extractor hood connected to a central ventilation system of a ship. This is provided with a controllable drive for the air displacement, whereby only a differential pressure monitor can detect the operating pressure and thus an optimal control with regard to the total energy in the exhaust air system is only possible to a limited extent.
  • WO 97/48479 A1 shows a further ventilation arrangement with an extractor hood and with a ventilation system.
  • the invention is concerned with the problem of creating a ventilation arrangement for an extractor hood located on a central ventilation system, in which an assembly for exhaust air ducting on the hood system, which can be used variably in particular in large kitchens on ships, is implemented with little technical effort and the sucked-in kitchen- Vapors can be optimally extracted and / or distributed with a view to saving energy.
  • the ventilation arrangement with an extractor hood connected to a central extraction system is provided with a return connection which has at least one branch duct extending outside of the vapor receiving space, which is in particular delimited by the ceiling part and the longitudinal and transverse side parts, as a functional additional part of the system.
  • This is designed as an additional module that can be variably adapted to the design of the respective extractor hood.
  • the extractor hood In the area of its fluid system that absorbs the filtered exhaust air, the extractor hood is provided with a guide sensor that engages in this and this enables the respectively optimal operating values via a connection with the control unit.
  • the guide sensor is designed in such a way that, particularly in the area of the duct of the fluid system, a mixed air consisting of circulating air, external fresh air and / or kitchen fumes can be detected by means of a variably configurable sensor structure. It is also provided that in the area of the fluid system having the channel K, a plurality of guide sensors that can each be activated in different channel zones are arranged.
  • the system is based on the fact that the guide sensor interacting with the control unit is designed in particular as a temperature sensor. This ensures that the overall system described above with return connection and central ventilation can be optimized from an energetic point of view. It is also conceivable to provide a humidity sensor as the guide sensor.
  • the concept of the branch duct which can be designed in a variable manner, provides that a circulating air system "dividing" the exhaust air is integrated into the extractor hood with it.
  • a branch duct With the branch duct, through a partial return of filtered exhaust air, a targeted influencing of the vapors sucked into the vapor-receiving space in front of the separator is achieved.
  • a flow system is generated with which an unintentional escape of moisture-containing vapor into the area around the hood can be avoided.
  • the partial volume of circulating air fed into the vapor receiving space via the branch duct and a transfer chamber can be controlled and directed in fluidic optimization in such a way that this partial volume is branched off from the “heated” exhaust air only flows in the area below the extractor hood near its ceiling part. This prevents exhaust air from getting into the surrounding space, and at the same time the rising haze can be deflected in its direction of movement towards the separator in such a way that a flow-influenced air-vapor mixture is captured in the haze receiving space and discharged from it.
  • This partial volume of the exhaust air is conveyed out in particular from the transfer chamber located on one of the side parts by means of a fan, so that a negative pressure in the vapor receiving space is effective in the vicinity of the transfer chamber and the vapors rising from the surrounding space generate a conveying pulse in the direction of the separator opposite the transfer chamber learns.
  • This subsystem of the air and vapor line which is largely closed with a view to the air flow circuit described above, is constructed in such a way that "only cleaned" exhaust air from the return connection can be used. In this way, the usual blowing in of fresh air can be reduced to a minimum and energy can be saved.
  • the returned partial volume has an effect on the central extraction connected to the extractor hood in such a way that its lower extraction power - due to the "returned" partial volume - results in energy savings of 25% to 90% on the extractor hood (based on the total circulated air volume) can be.
  • a control concept that can be variably designed on the basis of the central ventilation or central suction of the ship provides that the respective decentralized conveying components in the extractor hood can be adjusted to an optimal state of exhaust air discharge and partial exhaust air return by means of a programmable control unit. In this way, significant energy savings can be achieved in the overall system, in particular a passenger ship with several suction positions.
  • An improvement according to the invention of the hood design provides that at least one guide sensor is provided in its fluid system that absorbs the filtered exhaust air and influences the operating values of the control unit that can be optimized in each case.
  • This guide sensor is preferably integrated in the area of the duct that receives the exhaust air immediately after filtering in such a way that in this area a mixed air consisting of circulating air, external fresh air and / or kitchen fumes is detected and its state is detected, particularly with regard to temperature and humidity can be.
  • a further improvement of the system provides that the ventilation arrangement can also be provided with the guide sensor in the area of the exhaust air duct and / or further duct parts in the area of the return connection. This ensures that the fluid parameters can be detected by means of a plurality of such detectors in each case in different channel zones and thus the control unit can automatically react to varying conditions by means of corresponding activation signals.
  • the guide sensor is designed as a temperature sensor. It is also conceivable that a humidity sensor is integrated into the system as a guide sensor. The joint arrangement of humidity and temperature sensors is also conceivable.
  • the extractor hood has the respective guide sensor in the area of the branch duct and / or the transfer chamber or that additional or separate sensors can also be installed here.
  • An expansion of the concept with controllable guide components provides that the extractor hood is provided with at least one additional heat exchanger in the area of the fluid system through which the prepared mixed air flows.
  • This heat exchanger is designed in such a way that its control and regulating assemblies can interact with the sensor-guided control unit and thus the effect of the heat exchanger can be monitored and regulated.
  • An optimal design of this additional assembly provides that the mixed air formed in the channel acting as a distribution shaft is cooled by means of the heat exchanger.
  • the heat output that can be removed in the process can be fed to an external service water system or the like.
  • the arrangement of these assemblies provides that an inflowing air mixture is assigned to the heat exchanger in the direction of flow of the sucked in exhaust air - directly behind the filters of the channel acting as a distribution duct. It is intended that the respective pipes are integrated into the extractor hood as heat exchangers. It is also conceivable that the double-walled design of the walls of the channel zones already forms a respective flow space for fluids flowing in this "integrated" heat exchanger as a transmission medium.
  • Fig. 1 is a ventilation arrangement generally designated with L ( Fig. 5 ) shown in a side view, with an extractor hood denoted as a whole by 1 being connected to this assembly.
  • This extractor hood 1 is based on a construction according to WO 2012/055504 A1 off, such hoods being provided in the form of a vapor exhaust in particular for the kitchen area of ship equipment.
  • the extractor hood 1 has a housing-like structure which is known per se and can be connected to a ventilation system 3 by means of an outlet connection 2 or a similar connector.
  • This extractor hood 1 is provided with an upper ceiling part 4 and longitudinal and transverse side parts 5, 6 and 7, 8 angled therefrom, so that a vapor receiving space 9 that is open at the bottom in the installed position is formed.
  • Such extractor hoods 1 work in particular with an external suction drive (central ventilation 62, Fig.
  • the channel K which is provided as a distribution shaft 11, is provided with at least one return connection TR which detects a partial volume TV of the filtered exhaust air T.
  • This return connection TR leads to the vapor receiving space 9 in Area of at least one transfer chamber 30.
  • a cover 34 influencing the flow direction TR ′′ of the returned partial volume TV ′ is provided at its outlet.
  • This extractor hood 1 has (as in FIGS. 1 to 5 shown) an optimized return connection TR, this being with a branch duct 50.1 that can be connected to the hood plates as an additional assembly ( Fig. 2 ) is provided.
  • this branch duct 50 an additional module that can be configured in a variable manner is provided.
  • a further optimization in the area of the respective transfer chamber 30 is also associated with this branch channel concept. It is advantageously provided that the partial volume TV of the filtered exhaust air T that can be diverted from the transfer chamber 30 in the area of its cover 34 flows in a conveying direction essentially parallel to the ceiling part 4 of the extractor hood 1 - according to TV '( Fig. 1 ). This ensures that the partial volume TV 'flowing out of the transfer chamber 30 can reach the separator 10 of the distribution shaft 11 largely without changing direction. For this purpose, components that act as obstacles have been removed in this area.
  • An additional improvement of this optimally controllable flow course is provided that the transfer chamber 30 is additionally provided with respective flow nozzles 52 in the area of its cover 34.
  • Fig. 1 and 5 show the partially sectioned side views (with the distribution shaft 11 open) the arrangement in the area of the branch channels 50.1 and 50.1 '( Fig. 3 ).
  • the UV tube system 35 which is known per se, is visible here, with which ozone formation is brought about in the area of the distribution shaft 11 immediately behind the separator 10, in such a way that, in addition to the antibacterial effect, particles contained in the filtered exhaust air are also crushed and via the suction 3 reach the vent.
  • This area of the channel K which acts as a distribution duct 11, is designed in such a way that mixed air can be formed here from circulating air, external fresh air and / or kitchen fumes.
  • the system can be provided with a motor-driven control flap 59.
  • This control flap 59 in the closed position ( Fig. 5 ) a complete closure of the system can be achieved, so that unwanted air escape from or into the haze receiving space 9 is avoided.
  • the control flap 59 can be displaced from the closed position into an open position, not shown, by means of a drive element (not shown). It is also conceivable that a stepless adjustment of the control flap 59 is possible and this can also be shifted by manual operation.
  • the control flap 59 acts with a control unit 63 provided to optimize the exhaust air movement ( Fig. 5 ) together.
  • the ventilation system 3 is shown together with a central ventilation 62 provided in the area of a passenger ship or similar system with a plurality of cooking areas, this having in particular several connection lines 3 ′ and at least one outlet 65.
  • This central system has at least one drive 61, which influences the suction power in the lines 3 ', in the form of a suction fan or the like.
  • This drive 61 interacts via a central control unit 63 with the components provided for the exhaust air movement in the area of the extractor hood 1 in such a way that an optimal effective combination of central ventilation 62 and the decentralized conveying components of the fluid system is achieved.
  • Fig. 5 is for example the connection the control unit 63 connected to the drive 61 via a control line 66 to the control flap 59 (line 67), the fan 51 (line 68).
  • the air pressure in the area of the chamber K is used as a reference variable.
  • the control unit 63 if the delivery pressure in the chamber K is too low, the power in the area of the radial fan 51 can be increased.
  • the control flap 59 can then be regulated and thus the air volume detected by the central suction 62 can be increased.
  • This interaction of the central and decentralized components can be regulated by appropriate control programs in such a way that optimal extraction conditions are achieved in the area of the extractor hood 1 and thus the energy balance of the overall system is improved.
  • the extractor hood 1 is provided with a guide sensor 70 which engages in the area of its fluid system that absorbs the filtered exhaust air ( Fig. 4 ) and this enables the respectively optimal operating values via a connection 71 with the control unit 63.
  • the guide sensor 70 is designed in such a way that, particularly in the area of the channel K of the fluid system, a mixed air consisting of circulating air, external fresh air and / or kitchen fumes can be detected by means of a variably configurable sensor structure. It is also provided that in the area of the fluid system having the channel K, a plurality of guide sensors 70 which can be activated in different channel zones are arranged (not shown).
  • the system is geared towards the fact that the guide sensor 70 interacting with the control unit 63 is designed in particular as a temperature sensor. This means that the overall system described above with return connection TR and central ventilation 61 can be optimized from an energetic point of view. It is also conceivable to provide a humidity sensor as the guide sensor 70.
  • control unit 63 Assuming that a complex evaluation of sensor data is possible in the control unit 63, a simultaneous evaluation of several temperature and / or humidity sensors is also possible, so that, depending on the temperature conditions in the area of the heating and warming systems located under the extractor hood 1, optimal Air control in the area of the the receiving space 9 rising vapors and the mixed air generated in the channel K is possible.
  • a further improvement can be achieved by equipping the extractor hood 1 with the respective guide sensors 70 and / or further separate sensors in the area of the branch duct 50.1 and / or the transfer chamber 30.
  • this optimally detectable extractor hood 1 can additionally be provided with at least one heat exchanger 72 in the area of the duct system through which the prepared mixed air flows.
  • This heat exchanger 72 in turn, can be adjustable by means of a control element 73 and can interact with the sensor-guided control unit 63 (connection 74).
  • the heat exchanger 72 in particular the mixed air formed in the channel K acting as a distribution shaft 11 can be cooled, and the heat output that can be removed can be fed to a domestic water system with little effort so that further energy savings are possible. It is provided that the heat exchanger 72 is optimally placed directly behind the filters 75 of the channel K in the flow direction of the sucked in exhaust air. Using known heat transfer media such as water, oil or the like, it is provided that the respective pipelines forming the heat exchanger 72 can be integrated into the extractor hood 1. It is also conceivable that In the system, double-walled versions of the line walls form respective pipelines (not shown) and thus the housing walls are designed as "direct" heat exchangers.

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

Claims (11)

  1. Dispositif de ventilation (L) avec au moins une hotte aspirante (1) pour une zone de cuisine d'un équipement naval et avec un système d'aération (3) agissant comme une aspiration centrale (62), dans lequel la hotte aspirante (1) est raccordée au système d'aération (3) du dispositif de ventilation (L) à l'aide d'une tubulure de sortie (2) et forme un espace de réception des émanations (9), qui est ouvert vers le bas dans la position montée et à partir duquel les émanations d'eau et/ou grasses sont reçues par le biais d'un séparateur (10) de la hotte aspirante (1) dans au moins un canal (K) de la hotte aspirante (1) et sont redirigées vers la tubulure de sortie (2) de la hotte aspirante (1) sous la forme d'un air vicié (T) purifié en grande partie, et le canal (K) prévu sous la forme d'un puits de distribution (11) est muni d'au moins une liaison de retour (TR) de la hotte aspirante (1) détectant un volume partiel (TV) de l'air vicié filtré (T) et débouchant dans l'espace de réception des émanations (9) au niveau d'au moins une chambre de transition (30) et, au niveau de sa sortie, est prévu un couvercle (34) qui influence la direction d'écoulement (TR'') du volume partiel (TV') retourné, dans lequel au moins un canal de dérivation (50.1, 50.2) formant la liaison de retour (TR) est prévu et s'étend sensiblement à l'extérieur de l'espace de réception des émanations (9) entre la zone du puits de distribution (11) et la chambre de transition (30) et ainsi un volume partiel (TV) de l'air vicié (T) purifié peut directement être réacheminé dans l'espace de réception des émanations (9) à partir de la zone du puits de distribution (11), l'au moins un canal de dérivation (50.1, 50.1') présente en outre au moins un ventilateur (51) qui sépare le volume partiel (TV) de l'air vicié (T) purifié, et dans lequel le système d'aération (3) est raccordé à une ventilation centrale (62) du dispositif de ventilation (L) servant d'aspiration, qui présente un entraînement réglable (61) et coopère par le biais d'une unité de commande (63) avec au moins un organe d'entraînement (60) d'une soupape de commande (59) de la hotte aspirante (1) de telle sorte qu'au moins l'air vicié dans l'espace intérieur (K) du puits de distribution (11) peut être réglé sur une valeur de fonctionnement optimisée, caractérisé en ce que dans le canal (K) est intégré au moins un capteur de guidage (70) qui influence les valeurs de fonctionnement respectivement optimisables de l'unité de commande (63), dans lequel la soupape de commande (59) est disposée au niveau d'une ouverture d'admission (58) de la tubulure de sortie (2) dirigée vers le puits de distribution (11) de telle sorte que la soupape de commande (59) ferme entièrement dans une position de fermeture la hotte aspirante (1) vis-à-vis du système d'aération (3) et la soupape de commande (59) peut être amenée dans une position d'ouverture par le biais d'un réglage en continu.
  2. Dispositif de ventilation selon la revendication 1, caractérisé en ce que, au niveau du canal (K) du système de fluide, un air mélangé composé d'air de circulation, d'air frais externe et/ou d'émanations de cuisine peut être détecté à l'aide du capteur de guidage (70).
  3. Dispositif de ventilation selon la revendication 1 ou 2, caractérisé en ce que, au niveau du système de fluide présentant le canal (K), sont prévus plusieurs capteurs de guidage (70) qui peuvent être activés à chaque fois dans différentes zones du canal.
  4. Dispositif de ventilation selon une des revendications 1 à 3, caractérisé en ce que le capteur de guidage (70) est réalisé sous la forme d'un capteur de température.
  5. Dispositif de ventilation selon une des revendications 1 à 4, caractérisé en ce que le capteur de guidage (70) est réalisé sous la forme d'un capteur d'humidité.
  6. Dispositif de ventilation selon une des revendications 1 à 5, caractérisé en ce que la hotte aspirante (1) présente le capteur de guidage (70) et/ou des capteurs séparés au niveau du canal de dérivation (50.1) et/ou de la chambre de transition (30) .
  7. Dispositif de ventilation selon une des revendications 1 à 6, caractérisé en ce que la hotte aspirante (1) est munie d'au moins un échangeur de chaleur (72) au niveau du système de canal qui peut être traversé par le mélange d'air traité.
  8. Dispositif de ventilation selon la revendication 7, caractérisé en ce que l'échangeur de chaleur (72) coopère avec l'unité de commande (63) guidée par capteur.
  9. Dispositif de ventilation selon la revendication 7 ou 8, caractérisé en ce que, à l'aide de l'échangeur de chaleur (72), l'air mélangé formé dans le canal (K) agissant comme un puits de distribution (11) peut être refroidi et la puissance de chauffage qui peut ainsi être évacuée peut être acheminée jusqu'à un système d'eaux usées.
  10. Dispositif de ventilation selon une des revendications 7 à 9, caractérisé en ce que l'échangeur de chaleur (72) est disposé, dans la direction d'écoulement de l'air air vicié aspiré, directement derrière les filtres du canal (K).
  11. Dispositif de ventilation selon une des revendications 7 à 10, caractérisé en ce que des tuyauteries respectives formant l'échangeur de chaleur (72) peuvent être intégrées dans la hotte aspirante (1).
EP17740637.8A 2016-07-13 2017-06-29 Système de ventilation muni d'une hotte aspirante Active EP3485199B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202016004286.7U DE202016004286U1 (de) 2016-07-13 2016-07-13 Lüftungsanordnung mit einer Dunstabzugshaube
PCT/EP2017/066188 WO2018010971A1 (fr) 2016-07-13 2017-06-29 Dispositif de ventilation muni d'une hotte aspirante

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EP3485199A1 EP3485199A1 (fr) 2019-05-22
EP3485199B1 true EP3485199B1 (fr) 2020-08-26

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EP (1) EP3485199B1 (fr)
DE (1) DE202016004286U1 (fr)
WO (1) WO2018010971A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN108731060B (zh) * 2018-06-07 2019-10-22 宁波德业日用电器科技有限公司 一种厨房用多功能空气净化器
DE102020121130A1 (de) 2020-08-11 2022-02-17 Karlsruher Institut für Technologie, Körperschaft des öffentlichen Rechts Vorrichtung für die Sterilisierung von aerosolhaltiger Luft

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US4541409A (en) 1984-06-06 1985-09-17 Maysteel Corp. Backshelf compensating exhaust hood apparatus
DE3623210A1 (de) 1986-07-10 1988-01-21 H Ku Mones Gmbh Dunstabzugshaube mit zirkulationsfilterung und energiesparsystem
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WO1997048479A1 (fr) * 1996-06-19 1997-12-24 Halton Company Systeme avec convertisseur catalytique pour l'extraction des fumees dans une cuisine
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JP2004060968A (ja) 2002-07-26 2004-02-26 Yamazen:Kk レンジフード
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DE102010049363A1 (de) 2010-10-26 2012-04-26 Wagener Gastronomieproduktion Gmbh Lüftungsanordnung mit einer Dunstabzugshaube
WO2012055504A1 (fr) 2010-10-26 2012-05-03 Wagener Gastronomieproduktion Gmbh Dispositif de ventilation muni d'une hotte aspirante
DE102012012551A1 (de) 2012-06-23 2013-12-24 Heinrich Wagener Lüftungsanordnung mit einer Dunstabzugshaube

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EP3485199A1 (fr) 2019-05-22
DE202016004286U1 (de) 2016-08-12
WO2018010971A1 (fr) 2018-01-18

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