EP1194721B1 - Dispositif d'aspiration d'air pour poste de travail - Google Patents

Dispositif d'aspiration d'air pour poste de travail Download PDF

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Publication number
EP1194721B1
EP1194721B1 EP01943267A EP01943267A EP1194721B1 EP 1194721 B1 EP1194721 B1 EP 1194721B1 EP 01943267 A EP01943267 A EP 01943267A EP 01943267 A EP01943267 A EP 01943267A EP 1194721 B1 EP1194721 B1 EP 1194721B1
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EP
European Patent Office
Prior art keywords
air
filter
extraction apparatus
work station
blower
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
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EP01943267A
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German (de)
English (en)
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EP1194721A1 (fr
Inventor
Max Maier
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Individual
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Individual
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Publication of EP1194721A1 publication Critical patent/EP1194721A1/fr
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/36—Kitchen hoods

Definitions

  • the invention relates to an air suction device in the Claim 1 specified Art.
  • a similar air extraction device is in combination with a grill from FR-A-2619198 known, which will be discussed in more detail below.
  • An odor extraction device known from DE 24 02 615 A1 comes with a simpler filter system for fat separation and odor removal, however an intake funnel with a grease retention filter above the Workplace used, which is an upward-facing Airflow requires an air curtain to shield the air Generate work place.
  • a grill with an air suction device known each with an air opening on both sides of the grill, with a fan and a filter system are connected, the air openings, the blower, the filter system and an area between the air vents and just above the grill lie in a closed air circulation circuit that is in operation of the air extraction device in the area between the air opening on an upstream side of the Grills and the air vent on a downstream side of the grill creates an air curtain, wherein the filter system is housed in a room in the air circulation circuit lies and is connected to the air openings on both sides of the grill, the Air circulation circuit via an air outlet for part of the air from the air circulation circuit has, and wherein the air outlet downstream of the fan and the filter system is arranged.
  • a sideboard On the upstream and downstream side of the grill a sideboard is provided on which dishes can be placed.
  • the sideboard on the upstream side has warming plates, the underside with hot Circulating air can be heated.
  • the air outlet is adjustable and is used to set the temperature the circulating air and therefore the temperature of the warming plates.
  • the impeller is arranged in the space which is in the air circulation circuit.
  • the Blower motor is outside of the hot air circulation circuit in the circulating air external environment arranged to ensure the cooling of the engine.
  • Below the warming plates are arranged on the upstream side of the grill, a hard glass plate, which is horizontally slidable to adjust the flow of the upstream Allow air to escape.
  • the upstream side of the grill is more or less through the tempered glass plate instead of through the air curtain covered.
  • the object of the invention is in an air extraction device of the type mentioned to improve the suction so that the suction process effectively covers the entire work area and that food in the workplace is not uncleaned Air come into contact.
  • a Air circulation circle formed, which extends over the entire workplace extends over which it creates an air curtain.
  • the air curtain is formed by air coming from the Air opening flows out on one side of the workplace and into the air vent on the opposite side of the workplace flows.
  • the air curtain produced according to the invention thus covers the entire Area above the workplace.
  • the air that the Air curtain is circulating air, i.e. Air that only over the Workplace flows after being sucked by means of the suction fan has been sucked through the filter system, i.e. cleaned Air.
  • the compact housing of the blower and the Filter system in a special room, which is in the air circulation circuit lies and with the air openings on both sides the workplace is connected via at least one vertical air duct, made possible with the air extraction device according to the invention, within a limited space of the air circuit to separate grease from the air and rid them of smells at the same time.
  • the air extraction device With the air extraction device According to the invention, the air to be cleaned sucked through the grease trap filter and through the odor filter pressed. Because a grease trap filter and an odor filter can have different pressure drops through the arrangement of these two filters according to the invention upstream or downstream of the fan, the speed of the air can be optimally set for the respective filter.
  • Air circulation circuit via an air vent for one part the air from the air circulation circuit can be a Part of the air in the air circulation circuit constantly through Room air to be replaced, which then also first by the Filter system is passed through before it to form the Contributes to the air curtain over the workplace. Since continue with the air extraction device according to the invention the air discharge one has adjustable in size opening, the Proportion of fresh room air in the air circulation circuit adjust as required. Since further with the air suction device according to the invention the air outlet downstream of the fan is arranged; the air has passed the filter system and is thus already cleaned before being released into the environment becomes. Since further with the air extraction device according to the invention the blower between at least two filters of the filter system is arranged, the blower is before contamination protected.
  • the filter is upstream of the blower Grease trap filter and the filter downstream of the fan is an odor filter, especially the blower will not is affected by air laden with grease and is to that Recirculated air returned to the workplace not only greasy but also odorless.
  • blower is a radial blower
  • the grease separating filter is a cyclone filter, as he e.g. is manufactured by Rentschler & Reven, 99.5% of the air that is extracted Separate fat. Furthermore, such a filter is very easy to maintain, because it can easily be put in a dishwasher washed out and then reinserted.
  • Odor filter is a zeolite filter, so the odor filter can easily regenerated, is therefore particularly maintenance and environmentally friendly.
  • the air circulation circuit in the area below of the workplace has a further vexical air duct, over the the room in which the flour fan and the filter system are housed, with the other of the two air openings on both sides of the workplace connected, can be in the space between the vertical air ducts conveniently for heat application equipment required by food such as a hob or grill plate with the electrical power supply in addition to the assigned control device.
  • the invention of the room in which the blower and the filter system are housed, arranged to the side of the workplace is the way the one loaded with fat and smells Air from the downstream air opening of the workplace has to cover up to the filter system, minimal, so that the possibilities of pollution of the air suction device are minimal through fat.
  • the invention of the grease trap filter and the odor filter are inclined to the vertical ', constructive results and fluidic advantages because of the space between the two filters to accommodate the fan can be exploited or because the filter effect in this constellation is particularly good.
  • the invention of the grease trap filter at an angle of 40 is inclined to 50 °, preferably 45 °, against the vertical and if in yet another embodiment of the air extraction device according to the invention of the odor filter at an angle of 30 to 40 °, preferably 35 °, inclined to the vertical is particularly constructive and fluidically great advantages, which can be demonstrated with a prototype to let.
  • the air outlet is arranged in a wall of the post-chamber is odor and grease-free air in the environment drain because this air is already the entire filter system has flowed through.
  • the workplace is a grill that is above the room in which the blower and the filter system are housed or extends next to this room, show the fluidic achieved according to the invention Advantages, because the air curtain covers the entire area above the grill so that there are no smells when grilling fat can get into the surrounding space.
  • the invention of the air vent so designed or adjusted is that 75% of the air is released from the air circulation circuit and the remaining 25% as circulating air to the workplace get and form its air curtain, the will Room surrounding workplace particularly effective against smells and Protected against fat, because tests have shown that such Air curtain, which is only 25% of that originally in the Air circulation circuit contains sucked air completely on the downstream side of the workplace Air intake can be sucked in without causing air build-up comes before this air opening.
  • the invention at least one air inlet for sucking in ambient air in the air circulation circuit to replace the over the air discharge from the air circulation circuit into the environment vented air is provided, can be via the Location of these air intakes the addition of room air to replace the air discharged through the air vent as required Taxes.
  • the inflow on the grease filter becomes Air volume increased. This reduces the vapor density, and at the same time the air temperature is lowered, which is both for an optimal efficiency of the odor filter is decisive.
  • the reduction in vapor density prevented a brief saturation of the odor filter.
  • the air intake causes a reduction in the vapor density, and thus associated is a temperature drop in the unfiltered air, which in turn is important for the effect of the odor filter especially if this is a zeolite filter is.
  • the invention of the air inlet the air opening on the downstream Side of the workplace, it is guaranteed that the cleaned air curtain covers the entire workplace, so no uncleaned ambient air to the food get to work and still let out the air can be replaced by fresh ambient air.
  • the deflated air in the air circulation circuit replace as needed, without the air curtain and its effects over the workplace are impaired.
  • the secondary air drawn in through the additional air opening causes the filter to process, with Vapors and smells laden air volume increased significantly becomes.
  • the inflow on the grease filter becomes Air volume increased. This reduces the vapor density.
  • the air temperature is reduced. Both components are for an optimal efficiency of the Significant sizes of zeolite filters. The reduction in vapor density prevents a brief saturation of the Zeolite filter.
  • this can be modular Cooking equipment program such as insert the varithek® system like it is known from DE 197 57 004 A1.
  • the two air openings with respect to each other are arranged that a symbolizing the air curtain Air jet axis towards the downstream air opening slightly is inclined downwards against the horizontal, so it looks light downward air jet of a thermal flow the forms better over the work surface than, for example a horizontal jet of air. In this there is the danger that the thermal flow grill and cooking steam over carries the effective area of the downstream air opening and thus they can not or only partially be recorded.
  • the upstream air opening as a narrower Blow slot is formed and the opposite downstream Air opening as a much wider suction slot is designed, the detection effect, i.e. the Effect of the downstream air opening on the supplied air as complete as possible, optimize.
  • the detection effect i.e. the Effect of the downstream air opening on the supplied air as complete as possible.
  • a large distance between upstream and downstream Air opening of the blow slot preferably narrower executed than at a small distance between the two Air openings.
  • the width of the suction slot is preferred larger with a large distance between the air openings trained than at a small distance.
  • the invention of the blow slot and the suction slot by air guide elements are formed in the vertical air channels, so can by the air guide elements in the vertical air duct the upstream air opening the upward flowing one Concentrate and redirect air, tapering the canal upwards and the deflection is designed to be streamlined are that turbulence is avoided as much as possible and the lowest possible pressure loss occurs.
  • the air is over Air guide elements deflected in the form of baffles and through this flow-optimized configuration has the detection effect of the suction slit significantly improved.
  • the invention of the blow slot slightly downwards against the horizontal is inclined and the suction slot at its opposite Inner walls are provided with radii, so can the detection effect of the trained as a suction slot optimize downstream air opening, preferably by radii on the upper and lower edge of the suction slot.
  • the invention is behind the downstream air opening extending section of the vertical air duct upwards is covered by an air guiding element, so that Flow detection of the downstream air opening optimize.
  • the air guide element is preferably at a small work surface or a short distance between the upstream and downstream air openings as a radius at the top edge of the downstream air vent educated. With a large work surface or a large one The distance between the air openings is the air guiding element preferably S-shaped in the transition from the downstream Air opening to the vertical channel.
  • the covering upper air guide is increasingly shortened, it becomes part of the recording effect the downstream air opening is deflected upwards and optimized. This is due to the emergence an increasing amount of vapors due to an increasing Distance between the upstream and the downstream Air opening and one due to the thermal flow occurring upward deflected air jet of the upstream air opening.
  • the air guide element in cross section S-shaped is, this has the advantage that at a greater distance between the upstream and downstream air openings the transition from the downstream air opening to the vertical channel is fluidically optimized. In particular becomes the detection effect of the downstream air opening improved.
  • This is an extension connected by air route. That in turn increases the absorption capacity of the vapors to be removed.
  • a the air baffle plays an important role in this context, which in a further embodiment of the invention from a U-shaped There is a border plate that when grilling as Splash guard serves, but here in this embodiment of the invention additionally causes the creation of the aforementioned Eddy flow is guaranteed to be stable. Only through that geometric design of the air baffle or the splash guard according to the mentioned embodiment of the invention reached the optimal vortex flow. A special role plays the increase that results from the operator side the air baffle in the rear part of the workplace. This means that the shape of the aerodynamics is decisive affected.
  • Fig. 1 shows an overall designated by the reference number 10 Kitchen module with a total of 12 air extraction device.
  • the air suction device 12 is a workplace 14 assigned to which food is heated become.
  • Such a workplace can be a grill, a Hob or the like., So a workplace where smells and fat-laden vapors arise that are in the air must be extracted from the area of the workplace, if the environment of the kitchen module 10 is not affected by such vapors should be affected.
  • Workplace 14 here one electric grill plate is inserted into a housing 16 and rests therein on pads formed on the inner walls of the housing 18.
  • the housing encloses a superstructure 20 and one Substructure 22, between which an intermediate structure 23 for receiving of control devices, for example an electrical one Power supply or the like. Is provided.
  • the substructure 22 contains a closed space 24 in which a blower 26, here a radial fan, and one with the reference number 28 designated filter system, here consisting of a Grease trap filter 30 and an odor filter 32, housed are.
  • the kitchen module 10 can be moved on swivel castors 34. Air openings are on both sides of the workplace 14 provided, namely an upstream air opening 36 or a downstream air opening 38. From the downstream Air opening 38 leads a vertical air duct 39 in the closed Room 24. Introduces from the closed room 24 vertical air duct 40 to the upstream air opening 36.
  • the air openings 36, 38, the blower 26, the filter system 28 and one between the air vents and just above the Work area 14 located area 42 are in a closed Air circulation circuit that operates the air extraction device 12 in the area 42 between the air opening. 36 and the air opening 38 of the workplace 14 an air curtain 44 generated.
  • the air circulation circuit is through Air flow arrows 46 shown in solid lines and with short arrows, which are supposed to indicate the air curtain 44, shown and overall in the drawing and below designated with the reference number 48.
  • the air circulation circuit 48 has an air outlet 50 for a part 52 shown as a dashed arrow in FIG Releases air from the air circulation circuit.
  • the vent 50 has an opening which is adjustable in size. The This opening can be adjusted by a next to the air outlet 50 shown double arrow 54 indicated.
  • the vent 50 is arranged downstream of the blower 26.
  • the illustrated grease trap filter 30 is preferably a Cyclone filter.
  • the odor filter 32 shown is preferred a zeolite filter. Of course, the filter system more than a grease trap filter and more than an odor filter exhibit.
  • the blower 26 is preferably between arranged at least two filters of the filter system 28, which are preferably a grease trap filter, like the grease trap filter 30 upstream of the blower 26, and an odor filter such as the odor filter 32 downstream of the blower 26 is. Under the grease trap filter 30, a fat drip pan 56 is arranged.
  • the closed one Space is in use of the kitchen module 10 on the front closed by a door which has been omitted in Fig. 1 to visualize the interior of the closed space 24.
  • the grease trap filter 30 and the odor filter 32 are inclined arranged against the vertical air channels 39 and 40, as shown in Fig. 1.
  • the grease trap filter 30 is at an angle of 40 to 50 ° and preferably 45 °, as shown, against the associated vertical air duct 39 inclined.
  • the odor filter 32 is at an angle of 3 ° to 5 °, as shown, against the assigned vertical Air duct 40 inclined.
  • the air channels 39 and 40 are at their 14 to the workplace opposite ends with a prechamber 58 and one respectively Post chamber 60 connected in the closed space 24th through the two filters 30, 32, i.e. through partitions on which these filters are attached, as shown in Fig. 1, are divided.
  • the air vent 50 is in a bottom wall Post-chamber 60 arranged.
  • the blower 26 is on an intermediate wall 62 attached so that its upstream side with the downstream side of the grease trap filter 30 and its downstream side with the upstream side of the Odor filter 32 is connected.
  • the air outlet 50 is so by choosing a fixed or adjustable Opening aperture or the like. Adjustable, that 75% of the air drained from the air circulation circuit 48 via the air outlet 50 and the remaining 25% as circulating air to the workplace 14 arrive and form its air curtain 44.
  • the downstream one Air opening 38 into which the air curtain is due the suction effect of the blower 26, serves at the same time as an air inlet for drawing ambient air into the Air circulation circuit to replace the air vent 50 drained from the air circulation circuit into the environment Air.
  • the air intake could also come from an air vent 63 exist, which are also on the downstream side of the Workplace 14 is provided, e.g. in the vertical Air duct 39 or, as indicated by dashed lines at 63, in Area of the antechamber 58.
  • the secondary air sucked in through the additional air opening 63 causes the filter to process Air volume laden with vapors and smells significantly increased becomes. This in turn has the effect that in the event of strong fumes / odors optimized the filter effect of the zeolite filter becomes.
  • the resulting increase in air volume leads to lower the temperature of those extracted from the workplace Air, which also ensures the optimal effect of the zeolite odor filter 32 is advantageous.
  • the filter system 28 from the cyclone grease filter 30 and the zeolite odor filter 32 is a completely easily regenerable Filter system: the grease separating filter 30 is in the dishwasher cleaned; the zeolite odor filter 32 desorbed at 200 ° C in the oven or in the combi steamer.
  • FIGS. 2 to 5 are practical embodiments of the Air suction device according to the generally described above Invention shown, which instead of the housing 16, the superstructure, Substructure and intermediate structure exists, a so-called System carrier 116 have the closed space below 24 and above, separated from it, the workplace 14, which consists of an electric grill plate.
  • Fig. 2 shows the schematic structure of the system carrier 116 with a relatively small or short work place 14. The structural Details with the embodiment of FIG. 1st match, are not described again below. The same parts are the same in FIGS. 2 to 5 Reference numbers as in Fig. 1 provided. The air flow is again indicated by arrows. The differences of the embodiment 2 and 3 compared to the embodiment 1 are described in more detail below.
  • the air guiding element 66 is a sheet that extends obliquely upwards, the top turns horizontally so that the air opening 36 acts as a blow slot is trained.
  • the air guide element 66 forms with the Vertical an angle of preferably 13.7 °.
  • the air control elements 64 and 65 are designed so that the air opening 38th is designed as a suction slot, the cross section of lights is much larger than that of the blow slot of the air opening 36th
  • the air duct 40 is through a further air guiding element 67 in the direction of the grease separating filter 30 increasingly wider, as shown in FIG. 2 is shown.
  • the blow slot of the upstream air vent 36 less inclined.
  • An air jet from the upstream Air opening 36 has the property of air from to induce the environment.
  • the induced air volume increases strongly increases with the beam length and depends among other things on the Beam thickness.
  • the upstream air opening is able to suction completely 36 for a system carrier with a relative large workspace, as shown in Fig. 4, narrower executed as for a leadframe with a proportional small workplace, as shown in Fig. 2.
  • the downstream air opening 38 has the function in each case that supplied through the upstream air opening 36 Air as completely as possible and above the vertical Discharge air duct 39 down.
  • Fig. 3 is such a downstream air opening as a detail 38 shown in cross section showing the shape of a suction slit Has.
  • the lower and the upper edge of the Provide the suction slot with radii.
  • the air Inside the downstream Air opening 38, the air through the air guide 64, 65, which are guide plates, deflected. The detection effect is achieved by this flow-optimized design the downstream air opening 38 essential improved.
  • Fig. 5 shows an optimized embodiment in which the Transition from the downstream air opening 38 to the vertical one Air duct 39 through an S-shaped air guide element 65 '' is fluidically optimized. On the opposite On the side, no internals hinder the inflow of the suction Air.
  • the downstream air opening becomes 38 of a system carrier with a large work surface as shown in Fig. 5 designed as a kind of suction channel, which in its length relative to the downstream air opening 38 3 and 4 remains unchanged, whereas its width opposite the downstream air opening 38 of a leadframe with a small work surface is doubled and its area compared to this is enlarged by more than twice. On such a suction channel is oriented laterally and upwards.
  • the odor filter 32 forms an angle from 30 ° to 40 °, preferably 35 °, with the vertical Air duct 40 or 60 ° with the bottom of the closed Room 24.
  • the odor filter is 32 arranged much steeper than in the embodiment 4 is therefore in the embodiment 2 the air outlet 50 is not in the bottom of the closed Room 24 arranged, but in the left side wall.
  • the Angle that the air filter 32 in the embodiment according to Fig. 2 forms with the vertical, is 2 to 10 °, preferably 3 °.
  • the air outlet 50 is with a commercially available ventilation grille provided, the mutually displaceable slats Has. By changing the discharge cross-section, the Set the exhaust air volume.
  • the blower 26 is arranged that it doesn't cover part of the filter area. As a blower it is advisable to use a double-sided suction radial fan used, which can be easily integrated into the system carrier. The arrangement is chosen so that the subsequent odor filter 32 is not blown directly by the blower 26. Thereby a pressure chamber forms in front of the odor filter, which leads to a uniform flow through the odor filter.
  • the separation efficiency of the fat separation filter is different from that
  • the flow velocity of the air flow to be cleaned depends on.
  • To assess the separation performance of the grease separation filter used is the layout diagram provided by the manufacturer used. About the determined airflow and the Filter area, the mean inflow velocity is calculated and the degree of separation of the grease filter via the layout diagram certainly. 6 shows the mean inflow velocities and the corresponding degrees of separation are shown.
  • the average flow velocity of the grease separating filter for the system carrier with a smaller workplace (Fig. 2) is 1.9 m / s. This results in a degree of separation of 98%.
  • the system carrier with the larger workstation (Fig. 4) is the mean flow velocity of the Grease trap filter 1.6 m / s and the degree of separation 96%.
  • FIG. 7 shows an air suction device designated overall by 12 ', in which the space 24 'in which the fan 26 and the filter system 28 are housed, to the side of the Workplace 14 is arranged.
  • the room 24 ' is through one wall 25 inclined against the horizontal.
  • the fan 26 is arranged, the outlet port leads through the wall 25.
  • the fat separating filter 30 is arranged.
  • the odor filter 32 is arranged downstream the fan 26, the odor filter 32 is arranged.
  • the downstream air opening 38 directly forms the entrance to the antechamber 58 air laden with fat, vapors and odor from the area above the workplace 14 thus gets into the shortest way Room 24 'and thus has minimal opportunity for the air extraction device with fat, smoke particles or the like. to pollute.
  • the air first enters the grease trap filter in space 24 ' 30 and is freed of fat particles.
  • the air is sucked by the blower 26 through the grease separating filter 30 sucked.
  • the fat particles freed air by means of the blower 26 through the odor filter 32 pressed, which is a zeolite filter is.
  • the air passes through a horizontal one Air duct 37 in the vertical air duct 40 and from this out to the upstream air opening 36.
  • the lateral arrangement of the space 24 ', the blower 26 and The filter system 28 contains the advantage that filters and fans are easily accessible and that moreover in there is no technology in the area below the workplace. The latter area can therefore also be used become.
  • the exemplary embodiment shows such a possibility of use according to Fig. 8.
  • a device 70 is arranged on which in there is a container in the example shown here.
  • the top opening of the container can be adjusted with the aid of the device 70 be brought to the optimum height so that the air curtain smells and optimally remove vapors that escape from the container can.
  • the area of application of the air extraction device described above is not limited to a workplace where food be subjected to heat, but also includes Areas of application such as welding and soldering, mixing chemicals, Working with galvanic baths and the like
  • the workplace is 14 above the air openings 36, 38 on three sides, to which an operating side 13 is not heard from an air baffle in Form of a splash guard 11 surrounded.
  • the splash guard 11 takes from the operating side 13 in the direction transverse to the air curtain 44 (shown in Fig. 1) and to the opposite Side of the workplace towards the height.
  • the splash guard 11 consists of a U-shaped border plate, which is an aerodynamic Air baffle that forms a stable vortex flow builds up over the workplace 14.
  • the splash guard 11 can simply be on top the top of the kitchen module 10, which in Fig.

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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)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Electrostatic Separation (AREA)
  • Sampling And Sample Adjustment (AREA)

Claims (28)

  1. Dispositif d'aspiration d'air pour un poste de travail, notamment un poste où des denrées alimentaires sont soumises à la chaleur, comportant un orifice d'air chacun, disposé respectivement de part et d'autre du poste de travail et reliés à un ventilateur et à un poste de filtrage, les orifices d'air (36, 38), le ventilateur (26), le poste de filtrage (28) et une zone (42) disposée entre les orifices d'air (36, 38) et directement au-dessus du poste de travail (14) étant situés à l'intérieur d'un circuit de circulation d'air fermé (48) produisant un voile d'air (44) lorsque le dispositif d'extraction d'air (12) est en service, et ce dans la zone disposée entre l'orifice d'air (36) prévu sur un côté amont du poste de travail (14) et l'orifice d'air (38) prévu sur un côté aval du poste de travail (14); le ventilateur (26) et le poste de filtrage (28) étant disposés dans une enceinte (24, 24') située à l'intérieur du circuit de circulation d'air (48) et reliée aux orifices d'air (36, 38) de part et d'autre du poste de travail (14), le circuit de circulation d'air (48) comportant un orifice d'évacuation d'air (50) pour une partie (52) de l'air provenant du circuit de circulation d'air (48), l'orifice d'évacuation d'air (50) étant disposé en aval du ventilateur (26) et du poste de filtrage (28), le ventilateur (26) étant disposé entre au moins deux filtres (30, 32) du poste de filtrage (28), le filtre disposé en amont du ventilateur (26) étant un filtre séparateur de graisse (30) et le filtre disposé en aval du ventilateur (26) étant un filtre désodorisant (32), et le circuit de circulation d'air (48) présentant, dans la zone située au dessous du poste de travail (14), au moins une gaine d'air (40) verticale, par l'intermédiaire de laquelle l'enceinte abritant le ventilateur (26) et le poste de filtrage (28) est reliée à l'une des deux orifices d'air (36, 38) de part et d'autre du poste de travail (14).
  2. Dispositif d'aspiration d'air selon la revendication 1, caractérisé en ce que l'orifice d'évacuation d'air (50) présente une ouverture réglable en dimension.
  3. Dispositif d'aspiration d'air selon la revendication 1 ou 2, caractérisé en ce que le ventilateur (26) est un ventilateur centrifuge.
  4. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le filtre séparateur de graisse (30) est un filtre à cyclone.
  5. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 4, caractérisé en ce que sous le filtre séparateur de graisse (30), un bac collecteur de graisse (56) est installé.
  6. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le filtre désodorisant (32) est un filtre à zéolithe.
  7. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le circuit de circulation d'air (48) présente, dans la zone disposée sous le poste de travail (14), une gaine d'air verticale (39) supplémentaire par l'intermédiaire de laquelle l'enceinte abritant le ventilateur (26) et le poste de filtrage (28) est reliée à l'autre des deux orifices d'air (36, 38) disposés de part et d'autre du poste de travail (14).
  8. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'enceinte (24') abritant le ventilateur (26) et le poste de filtrage (28) est disposée latéralement à côté du poste de travail (14).
  9. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le filtre séparateur de graisse (30) et le filtre désodorisant (32) sont disposés de manière inclinée vis-à-vis de la verticale (39, 40).
  10. Dispositif d'aspiration d'air selon la revendication 9, caractérisé en ce que le filtre séparateur de graisse (30) est incliné d'un angle compris entre 40 et 50°, de préférence de 45°, vis-à-vis de la verticale.
  11. Dispositif d'aspiration d'air selon la revendication 9 ou 10, caractérisé en ce que le filtre désodorisant (32) est incliné d'un angle compris entre 30 et 40°, de préférence de 35°, vis-à-vis de la verticale.
  12. Dispositif d'aspiration d'air selon l'une quelconque des revendications 9 à 11, caractérisé en ce que dans l'enceinte (24, 24') abritant le ventilateur (26) et le poste de filtrage (28), la disposition des deux filtres (30, 32) est telle qu'il y a division en une chambre amont et une chambre aval (58, 60) respectivement.
  13. Dispositif d'aspiration d'air selon la revendication 12, caractérisé en ce que l'orifice d'évacuation d'air (50) est disposé dans une paroi de la chambre aval (60).
  14. Dispositif d'aspiration d'air selon la revendication 7 ou 8, caractérisé en ce que le poste de travail (14) est un gril s'étendant au-dessus de l'enceinte abritant le ventilateur (26) et le poste de filtrage (28), respectivement se trouvant à côté de cette enceinte (24').
  15. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 14, caractérisé en ce que l'orifice d'évacuation d'air (50) est soit conçu soit réglé de façon à laisser échapper 75 % de l'air depuis le circuit de circulation d'air (48), les 25 % qui restent parvenant au poste de travail (14) sous forme d'air de circulation pour former le voile d'air (44) de celui-ci.
  16. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 15, caractérisé par au moins un orifice d'admission d'air (38; 63) pour aspirer de l'air ambiant dans le circuit de circulation d'air (48) pour remplacer l'air évacué depuis le circuit de circulation d'air (48) dans l'atmosphère par l'intermédiaire de l'orifice d'évacuation d'air (50).
  17. Dispositif d'aspiration d'air selon la revendication 16, caractérisé en ce que l'orifice d'admission d'air constitue l'orifice d'air (38) prévu sur le côté aval du poste de travail (14).
  18. Dispositif d'aspiration d'air selon la revendication 16, caractérisé en ce que l'orifice d'admission d'air est un orifice d'air (63) supplémentaire disposé en aval de l'orifice d'air (38) sur le côté aval du poste de travail (14) et en amont du ventilateur (26).
  19. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 18, caractérisé en ce qu'il constitue un module de cuisine (10) intégré dans un poste de travail de cuisine.
  20. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 19, caractérisé en ce que les deux orifices d'air (36, 38) sont disposés l'un par rapport à l'autre de sorte qu'un axe de jet d'air symbolisant le voile d'air (44) soit légèrement incliné vers le bas vers l'horizontale vers l'orifice d'air aval (38).
  21. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 20, caractérisé en ce que l'orifice d'air amont (36) est prévu sous forme d'une fente de soufflage étroite et en ce que l'orifice d'air aval (38) en vis-à-vis est prévu sous forme d'une fente d'aspiration sensiblement plus large.
  22. Dispositif d'aspiration d'air selon la revendication 21, caractérisé en ce que les fentes de soufflage et d'aspiration sont constituées par des éléments de canalisation d'air (64-67) dans les gaines d'air verticales (39, 40).
  23. Dispositif d'aspiration d'air selon la revendication 22, caractérisé en ce que la fente de soufflage est légèrement inclinée vers l'horizontale et en ce que la fente d'aspiration est pourvue de rayons sur ses parois intérieures en vis-à-vis.
  24. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 23, caractérisé en ce qu'une portion de la gaine d'air verticale s'étendant derrière l'orifice d'air aval (38) est recouverte vers le haut par un élément de canalisation d'air (65).
  25. Dispositif d'aspiration d'air selon la revendication 24, caractérisé en ce qu'au fur et à mesure de la taille croissante du poste de travail et par là de l'écart plus important entre les orifices d'air amont et aval (36, 38), la longueur de l'élément de canalisation d'air couvrant supérieur (65', 65") est décroissante.
  26. Dispositif d'aspiration d'air selon la revendication 25, caractérisé en ce que l'élément de canalisation d'air (65") présente une section en "S".
  27. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 26, caractérisé en ce que le poste de travail (14) est encadré, au-dessus des orifices d'air (36, 38) sur trois faces dont ne fait pas partie une face de manoeuvre (13), d'une chicane d'air (11), notamment d'une tôle de protection contre les éclaboussures croissant en hauteur depuis la face de manoeuvre (13) en direction perpendiculaire au voile d'air (44) et vers la face opposée du poste de travail.
  28. Dispositif d'aspiration d'air selon la revendication 27, caractérisé en ce que la chicane d'air (11 ) est prévue sous forme d'une tôle d'encadrement conformée en U.
EP01943267A 2000-04-20 2001-04-19 Dispositif d'aspiration d'air pour poste de travail Expired - Lifetime EP1194721B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10019702 2000-04-20
DE10019702 2000-04-20
PCT/EP2001/004469 WO2001081831A1 (fr) 2000-04-20 2001-04-19 Dispositif d'aspiration d'air pour poste de travail

Publications (2)

Publication Number Publication Date
EP1194721A1 EP1194721A1 (fr) 2002-04-10
EP1194721B1 true EP1194721B1 (fr) 2004-03-03

Family

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Family Applications (1)

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EP01943267A Expired - Lifetime EP1194721B1 (fr) 2000-04-20 2001-04-19 Dispositif d'aspiration d'air pour poste de travail

Country Status (9)

Country Link
US (1) US6742515B2 (fr)
EP (1) EP1194721B1 (fr)
JP (1) JP4095663B2 (fr)
CN (1) CN1263985C (fr)
AT (1) ATE261090T1 (fr)
AU (1) AU6588801A (fr)
DE (2) DE20117490U1 (fr)
HK (1) HK1045872B (fr)
WO (1) WO2001081831A1 (fr)

Cited By (4)

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DE102004042158B3 (de) * 2004-08-31 2006-03-02 Maier, Max Lufterfassungseinrichtung und insbesondere dafür vorgesehene Abluftbox
DE102004044173A1 (de) * 2004-08-31 2006-05-04 Maier, Max Lufterfassungseinrichtung
DE202006003321U1 (de) * 2006-03-02 2007-07-19 Maier, Max Luftabsaugvorrichtung für einen Arbeitsplatz
DE102004036482B4 (de) * 2004-07-28 2007-08-09 Eisfink Max Maier Gmbh & Co. Kg Grillplatte

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JP2004528160A (ja) 2001-03-01 2004-09-16 フィリップス・プラスチックス・コーポレーション 多孔質無機粒子の濾過媒体
US7041159B2 (en) * 2003-08-04 2006-05-09 Phillips Plastics Corporation Separation apparatus
US20040139858A1 (en) * 2001-03-01 2004-07-22 Phillips Plastics Corporation Filtration media of porous inorganic particles
DE10208488A1 (de) * 2002-02-27 2003-09-04 Bsh Bosch Siemens Hausgeraete Abzugshaube und Verfahren zur Absaugung und/oder Aufreinigung kontaminierter Trägerstoffe
DE10216011A1 (de) * 2002-04-11 2003-10-30 Max Maier Koch- oder Grillvorrichtung
DE10216012A1 (de) * 2002-04-11 2003-10-30 Max Maier Dunstabsaugvorrichtung für ein Kochfeld od. dgl. und insbesondere dafür geeigneter Fettfilter
US7166140B2 (en) * 2003-10-22 2007-01-23 Phillips Plastics Corporation High capture efficiency baffle
DE102005010002A1 (de) * 2005-03-03 2006-09-14 Max Maier Dunstabsagvorrichtung, insbesondere für Küchen
ES2265279A1 (es) * 2005-06-20 2007-02-01 Mirror Maquinaria Industrial Restauracion Rapida Y Organizacion De Rstaurantes, S.A. Aparato de coccion de alimentos.
DE102005030038B4 (de) 2005-06-27 2021-11-25 Wilhelm Bruckbauer Kochfeldabzugsvorrichtung
US8695585B2 (en) * 2006-02-21 2014-04-15 Terry Kessler Grease filtration system and methods of making and using the same
DE202008003186U1 (de) * 2008-03-06 2009-07-16 Maier, Max Dunstabsaugvorrichtung für Küchen
DE102008014283B4 (de) * 2008-03-06 2021-06-10 Blanco Professional Gmbh + Co Kg Wrasenabzugsvorrichtung und eine solche umfassende Aufnahmevorrichtung für mindestens eine Speisenzubereitungseinheit
US20110146657A1 (en) * 2009-12-21 2011-06-23 Whirlpool Corporation Duct free re-circulating downdraft exhaust accessory
DE102010000329A1 (de) 2010-02-05 2011-09-22 Max Maier Gerät zum beidseitigen Grillen oder sonstigen Wärmebehandeln von Gargut
DE102010000327A1 (de) 2010-02-05 2011-08-11 Maier, Max, 71636 Pastakochgerät
US20130337732A1 (en) * 2012-06-15 2013-12-19 Eric Williams Ventilation System and Method
DE102016215650A1 (de) * 2016-08-19 2018-02-22 BSH Hausgeräte GmbH Haushaltsgargerät
EP3775700B1 (fr) * 2018-04-10 2023-08-02 BSH Hausgeräte GmbH Dispositif d'évacuation de fumée comprenant un dispositif de filtrage
CN108784407A (zh) * 2018-07-23 2018-11-13 广州东依健康科技有限责任公司 一种智能机器人无油烟烧烤巴
CN109253471A (zh) * 2018-09-07 2019-01-22 曾金玉 一种低烟环保暖炉设备
CN110513729B (zh) * 2019-07-29 2021-05-18 宁波方太厨具有限公司 一种烟灶一体机

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004036482B4 (de) * 2004-07-28 2007-08-09 Eisfink Max Maier Gmbh & Co. Kg Grillplatte
DE102004042158B3 (de) * 2004-08-31 2006-03-02 Maier, Max Lufterfassungseinrichtung und insbesondere dafür vorgesehene Abluftbox
DE102004044173A1 (de) * 2004-08-31 2006-05-04 Maier, Max Lufterfassungseinrichtung
DE102004044173B4 (de) * 2004-08-31 2006-07-13 Maier, Max Lufterfassungseinrichtung
DE202006003321U1 (de) * 2006-03-02 2007-07-19 Maier, Max Luftabsaugvorrichtung für einen Arbeitsplatz

Also Published As

Publication number Publication date
DE50101591D1 (de) 2004-04-08
WO2001081831A1 (fr) 2001-11-01
DE20117490U1 (de) 2002-01-17
US6742515B2 (en) 2004-06-01
ATE261090T1 (de) 2004-03-15
JP4095663B2 (ja) 2008-06-04
CN1380957A (zh) 2002-11-20
US20030101986A1 (en) 2003-06-05
EP1194721A1 (fr) 2002-04-10
AU6588801A (en) 2001-11-07
HK1045872A1 (en) 2002-12-13
HK1045872B (zh) 2004-06-25
CN1263985C (zh) 2006-07-12
JP2003532044A (ja) 2003-10-28

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