EP0036659A1 - Hotte d'évacuation avec arrivée d'air frais - Google Patents

Hotte d'évacuation avec arrivée d'air frais Download PDF

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Publication number
EP0036659A1
EP0036659A1 EP81102180A EP81102180A EP0036659A1 EP 0036659 A1 EP0036659 A1 EP 0036659A1 EP 81102180 A EP81102180 A EP 81102180A EP 81102180 A EP81102180 A EP 81102180A EP 0036659 A1 EP0036659 A1 EP 0036659A1
Authority
EP
European Patent Office
Prior art keywords
supply air
extractor hood
hood according
heat exchange
tubes
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.)
Granted
Application number
EP81102180A
Other languages
German (de)
English (en)
Other versions
EP0036659B1 (fr
Inventor
Markus Schmalhofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT81102180T priority Critical patent/ATE4745T1/de
Publication of EP0036659A1 publication Critical patent/EP0036659A1/fr
Application granted granted Critical
Publication of EP0036659B1 publication Critical patent/EP0036659B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes

Definitions

  • the invention relates to an extractor hood according to the preamble of claim 1.
  • the supply air and exhaust air ducts can be routed in the vicinity of one another and meet in a suitable heat exchanger, such as a conventional plate heat exchanger or the like, in which the warm exhaust air and the cool supply air are guided separately from one another by the plates.
  • a suitable heat exchanger such as a conventional plate heat exchanger or the like
  • the invention has for its object to make the thermal energy of the exhaust air usable for preheating, in particular the supply air, without the need for maintenance work requiring disturbingly short intervals.
  • the arrangement of the recuperator does not require any additional installation space, nor does it require any fundamental changes to the dimensions of the extractor hood, since space is available in any case in the hood with conventional hood designs, which space can be used by occupying the heat exchanger elements of the recuperator.
  • the heat exchange elements By arranging the heat exchange elements between a supply air storage area in the area of one end of the elongated hood and a supply air collection area in the area of the other end of the elongated hood, the supply air is conducted over a comparatively long distance in the hot exhaust air flow, so that an intensive heat exchange and sustainable preheating can be achieved.
  • the extractor hood has a supply air duct 1 leading from the surroundings and, in the example, two exhaust air ducts 2 leading into the surroundings, a suction fan, which is no longer visible in the drawing, being arranged in the area of the exhaust air ducts 2, which is used for the supply air with arrows 3 and the exhaust air with arrows 4 indicated air flow maintained.
  • the actual extractor hood has a housing 5, which is hung in a manner not shown in the present example case on the ceiling of a kitchen.
  • the housing 5 is divided in a manner known per se into an upper distribution duct 6 for supply air which flows into the interior at outlet openings 7 which are suitably covered by grilles, and a suction space 8 which is also covered by grilles 9 made of expanded material, for example .
  • the air is sucked from the interior of the room above a stove or the like through the grilles 9 into the suction chamber 8 and conveyed away through the exhaust air duct 4.
  • a partition 10 is arranged between the suction chamber 8 and the distribution duct 6 for the supply air, on which the exhaust air ducts 2 are attached, which pass through the distributor duct 6, which adjoins the surface of the top of the partition 10.
  • FIG. 2 shows the inlet air 6 opposed side wall 1 2 passes according to arrows 3 from the supply air duct 1 from first through a lateral part of the distributing channel into a Zu povertyvorlageraum 1 1, to the to the suction chamber 8 through a plurality of tubes 13 opens into the interior of the supply air according to arrow 3 from the supply air storage room 11.
  • the suction space 8 which the bundle of tubes 13 with the supply air guided therein passes through in an elongated manner, the supply air from the tubes 13 enters an intake air collecting space 14, the side wall 15 of which is adjacent to the tubes 13 and corresponds to the side wall 12 with openings for the Tubes 13 is formed.
  • the supply air arrives via a reheater 16, the function of which will be explained in more detail below, on the side opposite the supply air duct 1 into the distribution duct 6 and from there through the blow-out openings 7 in the manner shown in FIG. 1 in particular blown out roughly parallel to the ceiling.
  • the hot exhaust air drawn off from the room and passing through the grids 9 thus passes through the bundle of tubes 13 transversely to the direction of the axes of the individual tubes 13, these axes being arranged parallel and in a straight line to one another in the example.
  • the tubes 13 have a round cross-section, which results in minimal flow losses in the exhaust air flowing through according to the arrows 4.
  • the tubes 13 are made as thin-walled as possible and, if necessary, can also be supported between the side walls 12 and 15 against deflection in a manner not shown in detail. A particularly good heat transfer results when the tube walls are made of copper or aluminum.
  • a flow control element which in the example is designed as a swivel flap 19 , is arranged, which, in the position illustrated in FIG. 2, covers the adjacent mouth 20 of the distributor duct 6, in one according to FIG. 2 by 90 ° on the other hand, the position pivoted to the left covers the mouth 2 1 of the supply air supply space 11.
  • a temperature sensor 23 is arranged in the supply air flow according to arrows 3 behind the supply air collecting space 14, which temperature sensor measures the temperature of the supply air there after it has passed through the tubular heat exchanger and in the example also through the reheater 16.
  • a maximum temperature can be set on a thermostatic control circuit, not shown, up to which the swivel flap 19 is held in the position according to FIG. 2, that is to say the entire supply air quantity is preheated.
  • a control command is given to the servomotor 22 for resetting the swivel flap 19 continuously or in small steps such that a part of the supply air from the supply air duct 1 is directed directly into the distribution duct 6 according to the dashed arrow 3 while a other part still flows through the pipes 1 3. If this does not result in a sufficient temperature drop below the maximum temperature of 17 ° C., the flap 19 gradually closes the mouth 2 1 of the supply air supply space 11, so that the entire supply air flows directly into the distribution channel 6 and from there through the outlet openings 7 without preheating into the room.
  • the energy supply to the reheater 16 is additionally controlled until one the supply air is additionally heated to the set minimum temperature or the total energy available per unit of time is released in the reheater 1 6. In this way, it is automatically achieved that, apart from extreme exceptional cases, the supply air emerging at the blow-out openings 7 always has the same temperature, for example in the region of 17 ° C.
  • the required heating of the supply air is initially carried out exclusively in the tubular heat exchanger and only the thermal energy of the exhaust air is used for this purpose.
  • the preheating in the reheater 16 is also carried out.
  • the minimum temperature set on the temperature sensor 24 can also be at a greater distance below the maximum temperature in order to delay the connection of the external energy for as long as possible and only then to release if the temperature of the supply air drops below a reasonable value despite the preheating in the tubes 13.
  • FIG 3 to 5 illustrate a modified embodiment of the invention, which is preferred in many cases, since instead of the tubes 13 as heat exchange elements of FIGS. 1 and 2, exchanger plates 13 'are used, which, as from a comparison of FIG 1 and 3 can readily be seen to take the place of vertical rows of rows, so that the exchanger plates 13 'delimit vertical slots 13a on both sides, through which the exhaust air is conducted upwards in calm stratified flows. This results in a significant reduction in the turbulence and thus the flow resistance due to the recuperator formed by the exchanger plates 13 '.
  • two sheet metal webs 131 and 132 can be used, which can be given an identical configuration with a fold 133 at one end and an insertion end 134 at the other end, the ends or edges in the region of the folds 133 and the insertion 134 in the same sense from the Main plane of the sheets 131 and 132 are bent. If the sheets of identical design are arranged against one another in the manner shown in FIG. 5, the folds 133 can overlap the insertion end 1.34 of the other sheet and be flanged so that a finished exchanger plate 13 'is produced in a technically simple manner.
  • a heat exchange tube 135 is used in the area of both ends of each exchanger plate 13 ', in which water can be heated by heat transfer from the exhaust air.
  • a good heat transfer is achieved when using copper for the heat exchange tubes 135, and moreover the circumference of the heat exchange tubes 135 is selected such that they come to rest in the bend in the region of the two ends of the exchanger plate 13 '.
  • a bead 136 on both sides can be introduced into the metal sheets 131 and 132 on the inside of the heat exchange tubes 135, which not only secures the heat exchange tubes 135 against movement towards one another, but also reduces their contact area with the colder supply air inside the exchanger plate 13 'and vice versa increases the heat transfer from the hot exhaust air.
  • heat exchange tubes 135 for heating water could also be arranged, in particular in the middle region of the recuperator with comparatively wide exchanger plates 13 ', and a part of the tubes 13 there may also be required if necessary in the embodiment according to FIGS. 1 and 2 be connected accordingly to water, so as to achieve useful or process water heating also in this embodiment.
  • an inlet 26 and an outlet 27 for the water in the heat exchange tubes 135 can be provided on one side of the extractor hood, with suitable collectors 28 and 29 at both ends of the exchanger plates 13 ' be arranged such that the graphically illustrated embodiment, passes under the cold water through the inlet 2 6 and a template collector 281 in the upper heat exchange tubes 135, flows through it with preheating, on the opposite side by the pressure acting as a distribution collector 29 into the lower tubes 135 is deflected and there is returned to an outlet collector 282, which is on the same side as the template collector 281 and from which the discharge takes place through the outlet 27.
  • the drain 27 can either lead directly to a tap, so that the water is heated according to the tap as a continuous flow heater, or it is switched with a continuous circulation of water between the drain 27 and the inlet 26, a buffer, not shown, from which heated Water with lower temperature fluctuations can be drawn off.
  • Fig. 4 is also schematically simplified a modified embodiment for controlling the supply air either by the recuperator or directly provided in the distribution channel 6, two swivel flaps 19 'and 19 "being provided, which are guided parallel to one another by a control linkage 22' illustrated by a dot-dash line and, in the example, are mounted centrally, in such a way that one swivel flap 19 'opens to the same extent as the other Swing flap 19 "closes and vice versa.

Landscapes

  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Ventilation (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Electric Suction Cleaners (AREA)
  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Table Devices Or Equipment (AREA)
  • Confectionery (AREA)
  • Prevention Of Fouling (AREA)
  • Separation Of Particles Using Liquids (AREA)
EP81102180A 1980-03-22 1981-03-23 Hotte d'évacuation avec arrivée d'air frais Expired EP0036659B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102180T ATE4745T1 (de) 1980-03-22 1981-03-23 Dunstabzugshaube mit zuluftzufuehrung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3011101A DE3011101C2 (de) 1980-03-22 1980-03-22 Dunstabzugshaube mit Zuluftzuführung
DE3011101 1980-03-22

Publications (2)

Publication Number Publication Date
EP0036659A1 true EP0036659A1 (fr) 1981-09-30
EP0036659B1 EP0036659B1 (fr) 1983-09-21

Family

ID=6097998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102180A Expired EP0036659B1 (fr) 1980-03-22 1981-03-23 Hotte d'évacuation avec arrivée d'air frais

Country Status (6)

Country Link
EP (1) EP0036659B1 (fr)
AT (1) ATE4745T1 (fr)
DE (2) DE3011101C2 (fr)
DK (1) DK153446C (fr)
IE (1) IE50936B1 (fr)
NO (1) NO153088C (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5323761A (en) * 1990-01-23 1994-06-28 Jeven Oy Ventilation apparatus
EP0886112A2 (fr) * 1997-06-19 1998-12-23 Max Homeier Hotte combinée pour l'évacuation de fumée et le conditionnement d'air
EP1291056A1 (fr) * 2001-09-07 2003-03-12 Industrial Waste Treatment Limited Système de séparation huile/eau
US6543526B2 (en) 2001-06-01 2003-04-08 Sidney Jacobs Combination cook stove heat exchanger, filter, and recirculation assembly
US8728189B2 (en) 2010-09-10 2014-05-20 Thermo Recovery Filters, Inc. Systems and methods for heat recovery
US8852307B2 (en) 2010-09-10 2014-10-07 Blissfield Manufacturing Company Filter unit, filtration method and system
US8945263B2 (en) 2010-09-10 2015-02-03 Blissfield Manufacturing Company Filter and method for grease filtration
EP2868983A1 (fr) * 2013-10-16 2015-05-06 BSH Hausgeräte GmbH Hotte aspirante
US9182131B1 (en) 2010-09-10 2015-11-10 Aqua Filters, Llc Systems and methods for heat recovery
US9372004B2 (en) 2010-09-10 2016-06-21 Blissfield Manufacturing Company Filter units, filtration methods, and filtration systems

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3504400A1 (de) * 1984-02-10 1985-08-14 Eberhard 5241 Schutzbach Bornhütter Vorrichtung zum abscheiden von wrasen, fett- und oelpartikeln aus abgesaugten luftstroemen
DE102005048986A1 (de) * 2005-10-11 2007-04-12 Uwe Pionati Dunstabzugshaube; Verfahren zur Verbesserung des Überschussdampf enthaltenden Raumklimas
FR2965493B1 (fr) * 2010-09-30 2013-06-14 France Air Hotte de traitement de l'air dans une cuisine et procede de traitement d'air dans une cuisine equipee d'une telle hotte
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
CN111089314B (zh) * 2019-08-30 2021-12-03 华帝股份有限公司 一种高效滤油的吸油烟机及烟气余热利用系统

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122834A (en) * 1977-04-04 1978-10-31 Jacobs Eugene A Ventilating, cooling and heat reclaiming apparatus for cooking equipment

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3799045A (en) * 1968-10-16 1974-03-26 Munters C Method of air conditioning
DE2013455C3 (de) * 1970-03-20 1974-01-03 Mitsubishi Denki K.K., Tokio Be- und Entlüftungsvorrichtung mit Wärmetauscher
US3827343A (en) * 1972-05-12 1974-08-06 W Darm Grease-collecting heat exchanger installation
DE2424152C3 (de) * 1974-05-17 1978-12-21 Heinz 4441 Schapen Eichholz Belüftungseinrichtung für Ställe
US4071935A (en) 1975-08-07 1978-02-07 Stainless Equipment Company Method of making heat exchanger
FR2362677A1 (fr) * 1976-08-27 1978-03-24 Electricite De France Hotte filtrante autonettoyante avec recuperation de chaleur, notamment pour cuisines
SE406123B (sv) * 1976-11-30 1979-01-22 Mets Ilmar Spisventilator
DE7807204U1 (de) 1978-03-09 1979-07-26 Naporra, Lothar, 8403 Bad Abbach Anschlussvorrichtung fuer die ableitung von kuechenabluft
US4175614A (en) * 1978-06-01 1979-11-27 Modine Manufacturing Company Heat exchanger device
DE8007888U1 (de) * 1980-03-22 1980-08-21 Schmalhofer, Markus, 8351 Aholming Dunstabzugshaube mit zuluftzufuehrung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122834A (en) * 1977-04-04 1978-10-31 Jacobs Eugene A Ventilating, cooling and heat reclaiming apparatus for cooking equipment

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5323761A (en) * 1990-01-23 1994-06-28 Jeven Oy Ventilation apparatus
EP0886112A2 (fr) * 1997-06-19 1998-12-23 Max Homeier Hotte combinée pour l'évacuation de fumée et le conditionnement d'air
EP0886112A3 (fr) * 1997-06-19 2002-03-06 Max Homeier Hotte combinée pour l'évacuation de fumée et le conditionnement d'air
US6543526B2 (en) 2001-06-01 2003-04-08 Sidney Jacobs Combination cook stove heat exchanger, filter, and recirculation assembly
US7540936B2 (en) 2001-09-07 2009-06-02 Industrial Waste Treatment Limited Oil/water separation system
WO2003022396A1 (fr) * 2001-09-07 2003-03-20 Industrial Waste Treatment Limited Systeme de separation huile/eau
EP1291056A1 (fr) * 2001-09-07 2003-03-12 Industrial Waste Treatment Limited Système de séparation huile/eau
US8728189B2 (en) 2010-09-10 2014-05-20 Thermo Recovery Filters, Inc. Systems and methods for heat recovery
US8852307B2 (en) 2010-09-10 2014-10-07 Blissfield Manufacturing Company Filter unit, filtration method and system
US8945263B2 (en) 2010-09-10 2015-02-03 Blissfield Manufacturing Company Filter and method for grease filtration
US9182131B1 (en) 2010-09-10 2015-11-10 Aqua Filters, Llc Systems and methods for heat recovery
US9372004B2 (en) 2010-09-10 2016-06-21 Blissfield Manufacturing Company Filter units, filtration methods, and filtration systems
US9726381B1 (en) 2010-09-10 2017-08-08 Aqua Filters, Llc Systems and methods for heat recovery
US10386076B2 (en) 2010-09-10 2019-08-20 Aqua Filters, Llc Systems and methods for heat recovery
EP2868983A1 (fr) * 2013-10-16 2015-05-06 BSH Hausgeräte GmbH Hotte aspirante

Also Published As

Publication number Publication date
NO153088B (no) 1985-10-07
IE810640L (en) 1981-09-22
DE3011101A1 (de) 1981-10-01
NO153088C (no) 1986-01-15
NO810968L (no) 1981-09-23
IE50936B1 (en) 1986-08-20
ATE4745T1 (de) 1983-10-15
DE3011101C2 (de) 1982-05-13
DK153446B (da) 1988-07-18
DE3160922D1 (en) 1983-10-27
EP0036659B1 (fr) 1983-09-21
DK130481A (da) 1981-09-23
DK153446C (da) 1988-12-27

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