WO2000056202A2 - Method and device for cleaning extractor hoods - Google Patents
Method and device for cleaning extractor hoods Download PDFInfo
- Publication number
- WO2000056202A2 WO2000056202A2 PCT/EP2000/002494 EP0002494W WO0056202A2 WO 2000056202 A2 WO2000056202 A2 WO 2000056202A2 EP 0002494 W EP0002494 W EP 0002494W WO 0056202 A2 WO0056202 A2 WO 0056202A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spray
- air inlet
- extractor hood
- cleaning
- extractor
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- 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 a method for cleaning extractor hoods.
- the invention also relates to a device for performing the method.
- Such extractor hoods are used to remove the vapor produced in cakes.
- the impact separator For this purpose, it is known to arrange an impact separator at the air inlet into the extractor hood, in which the incoming air is deflected so strongly that the droplets of condensate contained therein strike the walls of the impact separator and are separated there.
- the impact separator consists, for example, of several, mutually interlocking U-shaped bars, which are each arranged at a distance from one another in order to allow air to pass through.
- a collecting trough is usually arranged, which collects and discharges the consume coming down.
- the object of the invention is to provide a method of the type mentioned, with which a significant simplification and simplification of the cleaning process of an extractor hood is achieved.
- This object is achieved according to the invention in that the interior of the extractor hood is sprayed with cleaning water at intervals by means of a flushing device and that the cleaning water is drawn off from a collecting sump at the bottom of the interior.
- a device according to the invention for carrying out the method with an extractor hood is characterized in that a spray device for cleaning water is arranged in the interior of the extractor hood and that a collecting sump for cleaning water is arranged on the bottom of the interior of the extractor hood.
- the spray device preferably has a spray head rotatably mounted about an axis of rotation with spray nozzles, the spray jets of which exert a torque about the axis of rotation on the spray head.
- a spraying device is realized which sprays the entire interior of the extractor hood, the reaction forces exerted by the spraying jets on the spraying head also serving to drive the spraying head. This eliminates the need for a separate rotary drive for the spray head; in addition, only a very small number of spray nozzles are required.
- the spray device has a spray lance with a plurality of spray nozzles distributed in the longitudinal direction and in the circumferential direction.
- the extractor hood has a closed bottom wall falling to the collecting sump and a side air inlet, and that a water collecting duct is arranged below the air outlet.
- the water collection channel collects the cleaning water from the spray jets, which enters the air inlet from the interior of the extractor hood. This ensures in a structurally particularly simple and space-saving manner that no cleaning water drips down from the extractor hood.
- the spray device has a spray lance with a plurality of spray nozzles distributed in the longitudinal direction and in the longitudinal direction, so that the entire interior of the extractor hood including the rear side of the impact separator can be sprayed and cleaned with cleaning water.
- FIG. 3 in a greatly simplified representation, a vertical section through an extractor hood of another embodiment
- the extractor hood shown in Fig. 1 has a housing 1, in the oblique front wall 2, a window recessed 00/56202 - 5 -
- baffle separator 3 is used removably
- a blower 4 which is only indicated schematically in FIG. 1, sucks off the haze entering the interior 5 of the extractor hood 1 through the impact separator 3.
- the impact separator 3 shown in detail in Fig. 2 consists of two grids 3a and 3b of U-shaped bars 6 and 7, which are directed towards each other with their openings.
- the U-profile bars 6 and 7 engage with one another at a distance such that each U-profile bar 6 of the one grid 3a is interleaved with two adjacent U-profile bars 7 of the other grid 3b.
- this creates a meandering flow path with repeated complete deflection for the air that passes through and is laden with condensate.
- the condensate contained in the air strikes the surfaces of the U-shaped bars 6 and 7 and separates there for the most part.
- a condensate collecting channel 8 is arranged, which collects the condensate flowing down the U-shaped bars 6 and 7 and leads to a collecting point.
- the two grids 3a are detachably connected to one another by means of screws 9 and spacer bolts 10 and can be removed so that they can be spooled and thus cleaned.
- the U-profile bar 6 of the grid 3a and / or the U-profile bar 7 of the grid 3b are connected to one another by one or more transverse strips 11 or 12 on the rear side of the U-profile bar 6 or 7 in order to secure the grid 3a or 3b to give cohesion.
- a spray device for cleaning water which, in the exemplary embodiment shown, has a spray lance 13 with a plurality of spray nozzles distributed in the longitudinal direction and in the circumferential direction.
- the spray lance 13 is arranged essentially parallel and at a distance from the rear side of the impact separator 3. It is mounted on the rare walls of the housing 1 so as to be rotatable about its longitudinal axis and connected to a rotary drive (not shown) and is fed with cleaning water at one end.
- the extractor hood is spray-cleaned at predetermined intervals, the length of which depends on the accumulation of condensate.
- the impact separator 3 can be additionally cleaned in the manner described, the two grids 3a and 3b being taken apart and wound after the screws 9 have been loosened.
- the spraying device has a slowly movable spray carriage, the spray nozzles of which the longitudinal walls of the spray carriage remove the inner walls of the extractor hoods.
- 17 is a water collecting channel 18 which is connected to the collecting sump 14 via at least one falling drain line 19.
- the air inlet 17 has one above the water collection channel
- baffle 20 arranged baffle 20 on for spray jets of the spray device 13 'entering the air inlet 17.
- the baffle 20 is formed by the inner wall of the air inlet 17 which is deflected downwards.
- the inlet-side bottom edge 21 of the air inlet 17 is arranged above the water collection channel 18 so that the cleaning water dripping from the bottom edge 21 reaches the water chamber channel 18.
- the inlet-side bottom edge 21 of the air inlet 17 is formed by a round profile, for example a tube.
- the underside 16a of the sloping bottom wall 16 forms the ceiling of an air collection hood la, the air extraction opening 22 of which lies below the air inlet 17 of the extractor hood.
- the flow path of the air from the air vent 22 into the air inlet 17 is deflected around the rounded bottom edge 21 by more than 120 °, preferably up to 180 °.
- This Deflection of the flow channel for the air entering the extractor hood and the arrangement of the water collection channel 18 below the deflection point mean that the portion of the cleaning water entering the air inlet 17 is collected safely and completely, but at the same time all the inner surfaces of the extractor hood, to which condensate can be found can be cleaned by spraying.
- the falling drain lines 19 are arranged as tubes on both sides of the air collecting hood la and connected to the collecting sump 14.
- the spray device 13 has a spray head 24 which is rotatably mounted about an axis of rotation 23, which preferably runs vertically (FIG. 4) and is freely rotatably mounted on the lower end of a water supply line 25.
- Spray nozzles 25 are arranged to the side of the rotating spray head 24, the spray jets 26 of which are angled in such a way that the reaction forces exerted by them exert a torque about the axis of rotation 23. As a result, the spray head 24 is driven to rotate.
- the spray head 24 has an obliquely upwardly directed flat jet nozzle 27 and an obliquely downwardly directed flat jet nozzle 28, so that when the spray head 24 rotates, each point of the interior of the extractor hood is sprayed and thus cleaned in short intervals predetermined by the rotational frequency of the spray head 24 becomes.
Landscapes
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ventilation (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning In General (AREA)
- Baking, Grill, Roasting (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Prevention Of Fouling (AREA)
- Extraction Or Liquid Replacement (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
Description
Verfahren und Vorrichtung zur Reinigung von DunstabzugshaubenMethod and device for cleaning extractor hoods
Die Erfindung betrifft ein Verfahren zur Reinigung von Dunstabzugshauben. Die Erfindung betrifft außerdem eine Vorrichtung zur Durchfuhrung des Verfahrens .The invention relates to a method for cleaning extractor hoods. The invention also relates to a device for performing the method.
Derartige Dunstabzugshauben dienen dazu, den in Kuchen entstehenden Dunst abzuziehen.Such extractor hoods are used to remove the vapor produced in cakes.
Insbesondere beim Einsatz in Großkuchen und ahnlichen Einrichtungen fallt eine erhebliche Kondensatmenge an, die soweit wie möglich aufgefangen und abgeführt werden muß.Especially when used in large cakes and similar facilities, there is a considerable amount of condensate that must be collected and removed as far as possible.
Hierzu ist es bekannt, am Lufteintritt in die Dunstabzugshaube einen Prallabscheider anzuordnen, in dem die eintretende Luft so stark umgelenkt wird, daß die darin enthaltenen Kondensattropfchen auf Wände des Prallabscheiders prallen und dort abgeschieden werden. Zu diesem Zweck besteht der Prallabscheider beispielsweise aus mehreren, wechselweise ineinandergreifenden U-Profilstaben, die jeweils im Abstand zueinander angeordnet sind, um einen Luftdurchtritt zu ermöglichen. Am unteren Ende des Prallabscheiders ist üblicherweise eine Sammelrinne angeordnet, die das herablaufende Konsat auffangt und abfuhrt.For this purpose, it is known to arrange an impact separator at the air inlet into the extractor hood, in which the incoming air is deflected so strongly that the droplets of condensate contained therein strike the walls of the impact separator and are separated there. For this purpose, the impact separator consists, for example, of several, mutually interlocking U-shaped bars, which are each arranged at a distance from one another in order to allow air to pass through. At the lower end of the impact separator, a collecting trough is usually arranged, which collects and discharges the consume coming down.
Trotz der Verwendung solcher Prallabscheider, insbesondere aber auch ohne Verwendung eines Prallabscheiders, ist es unvermeidbar, daß ein Teil des Kondensats in die Dunstabzugshaube eintritt und sich an den Wanden des Innenraums und ggf. an der Ruckseite des Prallabscheiders niederschlagt. Daher ist es erforderlich, die Dunstabzugshaube m vorgegebenen Intervallen zu reinigen. Diese Reinigung ist sehr arbeitsauf- wendig, weil sie von Hand durchgeführt werden muß und weil der Innenraum der Dunstabzugshaube schwer zugänglich ist. Wenn vorhanden, muß der mit einem Rahmen versehene Prallab- scheider abgenommen und gespult werden.Despite the use of such impact separators, but especially without the use of an impact separator, it is unavoidable that part of the condensate enters the extractor hood and is deposited on the walls of the interior and possibly on the rear side of the impact separator. It is therefore necessary to clean the extractor hood at specified intervals. This cleaning is very labor-intensive manoeuvrable because it has to be done by hand and because the interior of the extractor hood is difficult to access. If available, the baffle separator with a frame must be removed and rewound.
Aufgabe der Erfindung ist es, ein Verfahren der eingangs genannten Gattung zu schaffen, mit dem eine wesentliche Vereinfachung und Erleichterung des Reinigungsvorgangs einer Dunstabzugshaube erzielt wird.The object of the invention is to provide a method of the type mentioned, with which a significant simplification and simplification of the cleaning process of an extractor hood is achieved.
Diese Aufgabe wird erfmdungsgemaß dadurch gelost, daß der Innenraum der Dunstabzugshaube m Intervallen mittels einer Spruheinnchtung mit Reinigungswasser besprüht wird und daß das Reinigungswasser aus einem Sammelsumpf am Boden des Innenraums abgezogen wird.This object is achieved according to the invention in that the interior of the extractor hood is sprayed with cleaning water at intervals by means of a flushing device and that the cleaning water is drawn off from a collecting sump at the bottom of the interior.
Damit ist eine wirksame und grundliche Reinigung des gesamten Innenraums der Dunstabzugshaube m einem automatisierbaren Arbeitsgang ohne Handarbeit möglich. Der Reinigungsvorgang kann somit in verhältnismäßig kurzen Intervallen durchgeführt werden. Dadurch verringert sich nicht nur die mögliche Geruchsbelastigung, sondern insbesondere auch das Brandrisiko wesentlich .This enables an effective and thorough cleaning of the entire interior of the extractor hood in one automated process without manual work. The cleaning process can thus be carried out at relatively short intervals. This not only significantly reduces the possible odor pollution, but also in particular the fire risk.
Der erforderliche zusätzliche Bauaufwand ist sehr gering, so daß auch bei vorhandenen Dunstabzugshauben eine nachtragliche Umrüstung möglich und wirtschaftlich vertretbar ist.The additional construction effort required is very low, so that subsequent retrofitting is possible and economically justifiable even with existing extractor hoods.
Zur Reinigung von Dunstabzugshauben, die einen aus ineinandergreifenden Profilstaben bestehenden Prallabscheider aufweisen, ist in Ausgestaltung des Erfindungsgedankens vorgesehen, daß auch die Ruckwand des Prallabscheiders mit Reinigungswasser besprüht wird. 00/56202 3For cleaning extractor hoods which have an impact separator consisting of interlocking profile bars, it is provided in an embodiment of the inventive concept that the rear wall of the impact separator is also sprayed with cleaning water. 00/56202 3
Eine erfmdungsgemaße Vorrichtung zur Durchfuhrung des Verfahrens mit einer Dunstabzugshaube ist dadurch gekennzeichnet, daß im Innenraum der Dunstabzugshaube eine Spruheinπchtung für Reinigungswasser angeordnet ist und daß am Boden des Innenraums der Dunstabzugshaube ein Sammelsumpf für Reinigungswasser angeordnet ist.A device according to the invention for carrying out the method with an extractor hood is characterized in that a spray device for cleaning water is arranged in the interior of the extractor hood and that a collecting sump for cleaning water is arranged on the bottom of the interior of the extractor hood.
Vorzugsweise besitzt die Spruhemrichtung einen um eine Drehachse drehbar gelagerten Spruhkopf mit Spruhdusen, deren Spruhstrahlen auf den Spruhkopf ein Drehmoment um die Drehachse ausüben. Damit wird m konstruktiv einfacher Weise eine Spruhemrichtung verwirklicht, die den gesamten Innenraum der Dunstabzugshaube besprüht, wobei die von den Spruhstrahlen auf den Spruhkopf ausgeübten Reaktionskrafte zugleich zum Drehantrieb des Spruhkopfes dienen. Damit entfallt die Notwendigkeit eines gesonderten Drehantriebs für den Spruhkopf; außerdem wird nur eine sehr geringe Anzahl von Spruhdusen benotigt. Bei einer anderen Ausfuhrungsform der erfmdungsgemaßen Vorrichtung ist vorgesehen, daß die Spruhemrichtung eine Spruhlanze mit mehreren, in Längsrichtung und m Umfangsrichtung verteilten Spruhdusen aufweist.The spray device preferably has a spray head rotatably mounted about an axis of rotation with spray nozzles, the spray jets of which exert a torque about the axis of rotation on the spray head. In this way, in a structurally simple manner, a spraying device is realized which sprays the entire interior of the extractor hood, the reaction forces exerted by the spraying jets on the spraying head also serving to drive the spraying head. This eliminates the need for a separate rotary drive for the spray head; in addition, only a very small number of spray nozzles are required. In another embodiment of the device according to the invention, it is provided that the spray device has a spray lance with a plurality of spray nozzles distributed in the longitudinal direction and in the circumferential direction.
Eine andere, bevorzugte Ausfuhrungsform der Vorrichtung sieht vor, daß die Dunstabzugshaube eine geschlossene, zum Sammelsumpf abfallende Bodenwand und einen seitlichen Lufteinlaß aufweist und daß unterhalb des Luftemlasses eine Wassersammelrmne angeordnet ist. Die Wassersammeirinne sammelt das Reinigungswasser der Spruhstrahlen, die aus dem Innenraum der Dunstabzugshaube m den Lufteinlaß eintritt . Damit wird in konstruktiv besonders einfacher und platzsparender Weise erreicht, daß kein Reinigungswasser von der Dunstabzugshaube herabtropft. O 00/56202 ,Another preferred embodiment of the device provides that the extractor hood has a closed bottom wall falling to the collecting sump and a side air inlet, and that a water collecting duct is arranged below the air outlet. The water collection channel collects the cleaning water from the spray jets, which enters the air inlet from the interior of the extractor hood. This ensures in a structurally particularly simple and space-saving manner that no cleaning water drips down from the extractor hood. O 00/56202,
Gemäß einer Ausfuhrungsform weist die Spruhemrichtung eine Spruhlanze auf mit mehreren, in Längsrichtung und in Um angsrichtung verteilten Spruhdusen, wodurch in einfacher Weise der gesamte Innenraum der Dunstabzugshaube einschließlich der Ruckseite des Prallabscheiders mit Reinigungswasser besprüht und gereinigt werden kann.According to one embodiment, the spray device has a spray lance with a plurality of spray nozzles distributed in the longitudinal direction and in the longitudinal direction, so that the entire interior of the extractor hood including the rear side of the impact separator can be sprayed and cleaned with cleaning water.
Weitere vorteilhafte Ausgestaltungen des Erfindungsgedankens sind Gegenstand weiterer abhangiger Ansprüche.Further advantageous embodiments of the inventive concept are the subject of further dependent claims.
Nachfolgend werden Ausfuhrungsbeispiele der Erfindung naher erläutert, die in der Zeichnung dargestellt sind.Exemplary embodiments of the invention are explained in more detail below, which are shown in the drawing.
Es zeigt:It shows:
Fig. 1 in stark vereinfachter Darstellungsweise einen senkrechten Schnitt durch eine Dunstabzugshaube mit einer Sprüheinrichtung,1 in a greatly simplified representation, a vertical section through an extractor hood with a spray device,
Fig. 2 einen vergrößerten Teilschnitt längs der Linie II-II in Fig. 1,2 is an enlarged partial section along the line II-II in Fig. 1,
Fig. 3 in stark vereinfachter Darstellungsweise einen senkrechten Schnitt durch eine Dunstabzugshaube einer anderen Ausfuhrung undFig. 3 in a greatly simplified representation, a vertical section through an extractor hood of another embodiment and
Fig. 4 einen vergrößerten Teilschnitt längs der Linie IV-IV in Fig. 3.4 shows an enlarged partial section along the line IV-IV in FIG. 3.
Die in Fig. 1 gezeigte Dunstabzugshaube weist ein Gehäuse 1 auf, in dessen schräger Vorderwand 2 ein Fenster ausgespart 00/56202 - 5 -The extractor hood shown in Fig. 1 has a housing 1, in the oblique front wall 2, a window recessed 00/56202 - 5 -
ist, m das ein Prallabscheider 3 herausnehmbar eingesetztis, a baffle separator 3 is used removably
Ein m Fig. 1 nur schematisch angedeutetes Geblase 4 saugt die durch den Prallabscheider 3 hindurch in den Innenraum 5 der Dunstabzugshaube 1 eintretenden Dunst ab.A blower 4, which is only indicated schematically in FIG. 1, sucks off the haze entering the interior 5 of the extractor hood 1 through the impact separator 3.
Der in Fig. 2 in Einzelheiten dargestellte Prallabscheider 3 besteht aus zwei Gittern 3a und 3b von U-Profilstaben 6 und 7, die mit ihren Offnungen gegeneinander gerichtet sind. Die U-Profilstabe 6 bzw. 7 greifen derart mit Abstand ineinander, daß jeder U-Profilstab 6 des einen Gitters 3a jeweils mit zwei benachbarten U-Profilstaben 7 des anderen Gitters 3b verschachtelt ist. Wie in Fig. 2 mit strichpunktierten Linien angedeutet ist, entsteht dadurch für die hindurchtretende, mit Kondensat beladene Luft ein maanderformiger Stromungsweg mit mehrmaliger vollständiger Umlenkung. Das m der Luft enthaltene Kondensat prallt auf die Flachen der U-Profilstabe 6 und 7 und scheidet sich dort größtenteils ab.The impact separator 3 shown in detail in Fig. 2 consists of two grids 3a and 3b of U-shaped bars 6 and 7, which are directed towards each other with their openings. The U-profile bars 6 and 7 engage with one another at a distance such that each U-profile bar 6 of the one grid 3a is interleaved with two adjacent U-profile bars 7 of the other grid 3b. As is indicated in FIG. 2 by dash-dotted lines, this creates a meandering flow path with repeated complete deflection for the air that passes through and is laden with condensate. The condensate contained in the air strikes the surfaces of the U-shaped bars 6 and 7 and separates there for the most part.
Am unteren Ende des Prallabscheiders 3 ist eine Kondensatauffangrinne 8 angeordnet, die das m den U-Profilstaben 6 und 7 herablaufende Kondensat auffangt und zu einer Sammelstelle fuhrt .At the lower end of the impact separator 3, a condensate collecting channel 8 is arranged, which collects the condensate flowing down the U-shaped bars 6 and 7 and leads to a collecting point.
Wie in Fig. 2 angedeutet, sind die beiden Gitter 3a mittels Schrauben 9 und Abstandsbolzen 10 losbar miteinander verbunden und abnehmbar, damit sie gespult und damit gereinigt werden können. Jeweils die U-Profilstabe 6 des Gitters 3a und/oder die U-Profilstabe 7 des Gitters 3b sind durch eine oder mehrere Querleisten 11 bzw. 12 auf der Ruckseite der U-Profilstabe 6 bzw. 7 miteinander verbunden, um dem Gitter 3a bzw. 3b einen Zusammenhalt zu geben. Im Innenraum 5 der Dunstabzugshaube ist eine Spruhemrichtung für Reinigungswasser angeordnet, die bei dem dargestellten Ausfuhrungsbeispiel eine Spruhlanze 13 aufweist mit mehreren, in Längsrichtung und in Umfangsrichtung verteilten Spruhdusen. Die Spruhlanze 13 ist im wesentlichen parallel und im Abstand zur Ruckseite des Prallabscheiders 3 angeordnet. Sie ist den Seltenwanden des Gehäuses 1 um ihre Langsachse drehbar gelagert und mit einem (nicht dargestellten) Drehantrieb verbunden und wird an ihrem einen Ende mit Reinigungswasser beschickt.As indicated in FIG. 2, the two grids 3a are detachably connected to one another by means of screws 9 and spacer bolts 10 and can be removed so that they can be spooled and thus cleaned. In each case the U-profile bar 6 of the grid 3a and / or the U-profile bar 7 of the grid 3b are connected to one another by one or more transverse strips 11 or 12 on the rear side of the U-profile bar 6 or 7 in order to secure the grid 3a or 3b to give cohesion. In the interior 5 of the extractor hood there is a spray device for cleaning water which, in the exemplary embodiment shown, has a spray lance 13 with a plurality of spray nozzles distributed in the longitudinal direction and in the circumferential direction. The spray lance 13 is arranged essentially parallel and at a distance from the rear side of the impact separator 3. It is mounted on the rare walls of the housing 1 so as to be rotatable about its longitudinal axis and connected to a rotary drive (not shown) and is fed with cleaning water at one end.
Bei der Drehbewegung der Spruhlanze 13 werden die Innenwände des gesamten Innenraums 5 und die Ruckseite des Prallabscheiders 3 intensiv besprüht und dadurch von anhaftendem Kondensat gereinigt. Das Reinigungswasser lauft in einen Sammelsumpf 14 am Boden des Innenraums 5 und wird von dort durch eine in Fig. 1 nur angedeutete Leitung 15 abgezogen.During the rotary movement of the spray lance 13, the inner walls of the entire interior 5 and the rear of the impact separator 3 are sprayed intensively and thereby cleaned of adhering condensate. The cleaning water runs into a collecting sump 14 at the bottom of the interior 5 and is drawn off from there through a line 15 only indicated in FIG. 1.
Die Spruhreinigung der Dunstabzugshaube erfolgt m vorgegebenen zeitlichen Intervallen, deren Lange sich nach dem Anfall von Kondensat richtet.The extractor hood is spray-cleaned at predetermined intervals, the length of which depends on the accumulation of condensate.
Im Zusammenhang mit dieser Spruhreinigung oder unabhängig davon kann die zusatzliche Reinigung des Prallabscheiders 3 der beschriebenen Weise erfolgen, wobei die beiden Gitter 3a und 3b nach dem Losen der Schrauben 9 auseinandergenommen und gespult werden.In connection with this spray cleaning or independently of this, the impact separator 3 can be additionally cleaned in the manner described, the two grids 3a and 3b being taken apart and wound after the screws 9 have been loosened.
Anstelle der beschriebenen drehbaren Spruhlanze 13 kann auch vorgesehen werden, daß die Spruhemrichtung einen langsver- fahrbaren Sprühwagen aufweist, dessen Spruhdusen bei der Langsbewegung des Sprühwagens die Innenwände der Dunstabzugs- O 00/56202 _ ηInstead of the rotatable spray lance 13 described, it can also be provided that the spraying device has a slowly movable spray carriage, the spray nozzles of which the longitudinal walls of the spray carriage remove the inner walls of the extractor hoods. O 00/56202 _ η
haube einschließlich der Ruckwand des Prallabscheiders 3 bestreichen.Brush the hood including the rear wall of the impact separator 3.
Bei dem in den Fig. 3 und 4 gezeigten Ausfuhrungsbeispiel einer Dunstabzugshaube weist deren Gehäuse 1' eine geschlossene, zum Sammelsumpf 14 abfallende Bodenwand 16 auf sowie einen seitlichen Lufteinlaß 17. Unterhalb des LufteinlassesIn the exemplary embodiment of an extractor hood shown in FIGS. 3 and 4, its housing 1 'has a closed bottom wall 16 falling to the collecting sump 14 and a side air inlet 17. Below the air inlet
17 ist eine Wassersammeirinne 18, die über mindestens eine abfallende Ablaufleitung 19 an den Sammelsumpf 14 angeschlossen ist.17 is a water collecting channel 18 which is connected to the collecting sump 14 via at least one falling drain line 19.
Der Lufteinlaß 17 weist eine oberhalb der WassersammeirinneThe air inlet 17 has one above the water collection channel
18 angeordnete Prallwand 20 auf für in den Lufteinlaß 17 eintretende Spruhstrahlen der Spruheinrichtung 13'. Die Prallwand 20 wird hierbei von der nach unten umgelenkten Innenwand des Lufteinlasses 17 gebildet.18 arranged baffle 20 on for spray jets of the spray device 13 'entering the air inlet 17. The baffle 20 is formed by the inner wall of the air inlet 17 which is deflected downwards.
Die eintrittsseitige Bodenkante 21 des Lufteinlasses 17 ist über der Wassersammeirinne 18 angeordnet, so daß das von der Bodenkante 21 abtropfende Reinigungswasser in die Wassersammerinne 18 gelangt.The inlet-side bottom edge 21 of the air inlet 17 is arranged above the water collection channel 18 so that the cleaning water dripping from the bottom edge 21 reaches the water chamber channel 18.
Bei dem dargestellten Ausfuhrungsbeispiel wird die eintrittsseitige Bodenkante 21 des Lufteinlasses 17 durch ein Rundprofil, beispielsweise ein Rohr, gebildet.In the exemplary embodiment shown, the inlet-side bottom edge 21 of the air inlet 17 is formed by a round profile, for example a tube.
Beim Ausfuhrungsbeispiel der Dunstabzugshaube nach Fig. 3 bildet die Unterseite 16a der abfallenden Bodenwand 16 die Decke einer Luftsammeihaube la, deren Luftabzugsoffnung 22 unterhalb des Lufteinlasses 17 der Dunstabzugshaube liegt. Der Stromungsweg der Luft von der Luftabzugsoffnung 22 in den Lufteinlaß 17 wird um die abgerundete Bodenkante 21 herum um mehr als 120°, vorzugsweise bis zu 180° umgelenkt. Diese Umlenkung des Stromungskanals für die in die Dunstabzugshaube eintretende Luft und die Anordnung der Wassersammeirinne 18 unterhalb der Umlenkstelle fuhren dazu, daß der in den Lufteinlaß 17 eintretende Anteil des Reinigungswassers sicher und vollständig aufgefangen wird, wobei aber gleichzeitig alle Innenflächen der Dunstabzugshaube, an denen sich Kondensat niederschlagen kann, durch Besprühen gereinigt werden. Die abfallenden Ablaufleitungen 19 sind hierbei als Rohre beiderseits der Luftsammeihaube la angeordnet und an den Sammelsumpf 14 angeschlossen.In the exemplary embodiment of the extractor hood according to FIG. 3, the underside 16a of the sloping bottom wall 16 forms the ceiling of an air collection hood la, the air extraction opening 22 of which lies below the air inlet 17 of the extractor hood. The flow path of the air from the air vent 22 into the air inlet 17 is deflected around the rounded bottom edge 21 by more than 120 °, preferably up to 180 °. This Deflection of the flow channel for the air entering the extractor hood and the arrangement of the water collection channel 18 below the deflection point mean that the portion of the cleaning water entering the air inlet 17 is collected safely and completely, but at the same time all the inner surfaces of the extractor hood, to which condensate can be found can be cleaned by spraying. The falling drain lines 19 are arranged as tubes on both sides of the air collecting hood la and connected to the collecting sump 14.
Bei dem in den Fig. 3 und 4 gezeigten Ausfuhrungsbeispiel weist die Spruheinrichtung 13' einen um eine Drehachse 23, die vorzugsweise senkrecht verlauft, drehbar gelagerten Spruhkopf 24 auf (Fig. 4), der frei drehbar am unteren Ende einer Wasserzulaufleitung 25 gelagert ist.In the exemplary embodiment shown in FIGS. 3 and 4, the spray device 13 'has a spray head 24 which is rotatably mounted about an axis of rotation 23, which preferably runs vertically (FIG. 4) and is freely rotatably mounted on the lower end of a water supply line 25.
Seitlich vom drehbaren Spruhkopf 24 sind Spruhdusen 25 angeordnet, deren Spruhstrahlen 26 in der Weise abgewinkelt sind, daß die von ihnen ausgeübten Reaktionskrafte ein Drehmoment um die Drehachse 23 ausüben. Dadurch wird der Spruhkopf 24 zu seiner Drehbewegung angetrieben.Spray nozzles 25 are arranged to the side of the rotating spray head 24, the spray jets 26 of which are angled in such a way that the reaction forces exerted by them exert a torque about the axis of rotation 23. As a result, the spray head 24 is driven to rotate.
Zusatzlich weist der Spruhkopf 24 eine schräg nach oben gerichtete Flachstrahlduse 27 und eine schräg nach unten gerichtete Flachstrahlduse 28 auf, so daß bei der Drehbewegung des Spruhkopfes 24 jede Stelle des Innenraums der Dunstabzugshaube in durch die Drehfrequenz des Spruhkopfes 24 vorgegebenen kurzen Intervallen besprüht und somit gereinigt wird. In addition, the spray head 24 has an obliquely upwardly directed flat jet nozzle 27 and an obliquely downwardly directed flat jet nozzle 28, so that when the spray head 24 rotates, each point of the interior of the extractor hood is sprayed and thus cleaned in short intervals predetermined by the rotational frequency of the spray head 24 becomes.
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00920529A EP1175173B1 (en) | 1999-03-22 | 2000-03-21 | Method and apparatus for cleaning extractor hoods |
| PL351247A PL193019B1 (en) | 1999-03-22 | 2000-03-21 | Method and device for cleaning extractor hoods |
| DE50006604T DE50006604D1 (en) | 1999-03-22 | 2000-03-21 | METHOD AND DEVICE FOR CLEANING COOKER HOODS |
| AT00920529T ATE267987T1 (en) | 1999-03-22 | 2000-03-21 | METHOD AND DEVICE FOR CLEANING EXTRACTOR HOODS |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19912913.4 | 1999-03-22 | ||
| DE19912913A DE19912913A1 (en) | 1999-03-22 | 1999-03-22 | Method and device for cleaning extractor hoods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2000056202A2 true WO2000056202A2 (en) | 2000-09-28 |
| WO2000056202A3 WO2000056202A3 (en) | 2000-12-21 |
Family
ID=7901972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2000/002494 Ceased WO2000056202A2 (en) | 1999-03-22 | 2000-03-21 | Method and device for cleaning extractor hoods |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1175173B1 (en) |
| AT (1) | ATE267987T1 (en) |
| DE (2) | DE19912913A1 (en) |
| PL (1) | PL193019B1 (en) |
| WO (1) | WO2000056202A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10314410B4 (en) * | 2003-03-28 | 2007-03-29 | Langner, Manfred H. | Hood |
| DE10309117B4 (en) * | 2003-02-28 | 2012-08-02 | Manfred H. Langner | Hood |
| CN113266862A (en) * | 2021-06-22 | 2021-08-17 | 珠海格力电器股份有限公司 | Fume exhaust fan |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL1775035T3 (en) * | 2005-10-14 | 2017-02-28 | Südluft Systemtechnik GmbH & Co. KG | Self-cleaning exhaust hood and system for cleaning an exhaust hood |
| US7832391B2 (en) | 2006-03-10 | 2010-11-16 | Kellogg, Bruns & Smeija, LLC | Range exhaust cleaning system |
| US8746231B2 (en) | 2006-03-10 | 2014-06-10 | Kbs Automist, Llc | Range exhaust cleaning system and method |
| DE102007058467B4 (en) * | 2007-12-04 | 2010-06-17 | Miele & Cie. Kg | Condensate barrier for a fume extraction device for the removal of exhaust air |
| ITMI20131085A1 (en) * | 2013-06-28 | 2014-12-29 | Elica Spa | FORCED ASPIRATION HOOD FOR DOMESTIC ENVIRONMENTS EQUIPPED WITH A FLUID COLLECTION CONTAINER. |
| CN105371321B (en) * | 2014-08-26 | 2018-03-30 | 广东美的厨房电器制造有限公司 | Smoke exhaust ventilator and its control method |
| CN105066199A (en) * | 2015-06-11 | 2015-11-18 | 淮南智辉装饰工程有限公司 | Automatic oil fume exhaust ventilator cleaning apparatus |
| CN106885282B (en) * | 2017-03-31 | 2019-12-17 | 广东美的厨房电器制造有限公司 | Fume exhaust fan |
| CN109059073B (en) * | 2018-01-11 | 2020-07-28 | 广东美的厨房电器制造有限公司 | Range hood, cleaning system for range hood, joint assembly, branch joint part and outer joint part |
| EP3759397B1 (en) | 2018-02-27 | 2023-04-05 | BSH Hausgeräte GmbH | Table hood and method for cleaning a table hood |
| CN112246038B (en) * | 2020-10-15 | 2024-09-06 | 常州市鑫祥科尔威船舶设备制造有限公司 | Spray type oil smoke gas collecting channel |
| CN112902267A (en) * | 2021-04-07 | 2021-06-04 | 重庆唐人恒强厨房设备制造有限公司 | Environment-friendly hydrologic cycle self-cleaning oil extraction cigarette purifies all-in-one |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3628311A (en) * | 1969-07-07 | 1971-12-21 | Nino S Inc | Air purification systems |
| US3616744A (en) * | 1969-08-21 | 1971-11-02 | Donald D Jensen | Air cleansing system for cooking ranges |
| DE3416692A1 (en) * | 1984-05-05 | 1985-11-07 | Wilfried 3000 Hannover Rosendahl | Extractor hood for large kitchens |
| FR2594725B2 (en) * | 1985-07-09 | 1988-09-02 | Fritsch Sa | KITCHEN HOOD |
| AT401102B (en) * | 1994-09-08 | 1996-06-25 | Lechner Josef Ing | COOKER HOOD OD. DGL. |
-
1999
- 1999-03-22 DE DE19912913A patent/DE19912913A1/en not_active Withdrawn
-
2000
- 2000-03-21 WO PCT/EP2000/002494 patent/WO2000056202A2/en not_active Ceased
- 2000-03-21 EP EP00920529A patent/EP1175173B1/en not_active Expired - Lifetime
- 2000-03-21 PL PL351247A patent/PL193019B1/en not_active IP Right Cessation
- 2000-03-21 AT AT00920529T patent/ATE267987T1/en active
- 2000-03-21 DE DE50006604T patent/DE50006604D1/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10309117B4 (en) * | 2003-02-28 | 2012-08-02 | Manfred H. Langner | Hood |
| DE10314410B4 (en) * | 2003-03-28 | 2007-03-29 | Langner, Manfred H. | Hood |
| CN113266862A (en) * | 2021-06-22 | 2021-08-17 | 珠海格力电器股份有限公司 | Fume exhaust fan |
| CN113266862B (en) * | 2021-06-22 | 2024-05-24 | 珠海格力电器股份有限公司 | Fume exhauster |
Also Published As
| Publication number | Publication date |
|---|---|
| PL351247A1 (en) | 2003-04-07 |
| EP1175173B1 (en) | 2004-05-26 |
| DE50006604D1 (en) | 2004-07-01 |
| WO2000056202A3 (en) | 2000-12-21 |
| EP1175173A2 (en) | 2002-01-30 |
| PL193019B1 (en) | 2007-01-31 |
| DE19912913A1 (en) | 2000-09-28 |
| ATE267987T1 (en) | 2004-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1175173A2 (en) | Method and device for cleaning extractor hoods | |
| DE102008014283B4 (en) | Fume extraction device and such a comprehensive receiving device for at least one food preparation unit | |
| EP0818574A2 (en) | Cleaning device | |
| DE19713747A1 (en) | Method and device for filtering fibers from an air stream | |
| EP2170519A2 (en) | Device for separating paint overspray | |
| DE2640219A1 (en) | CAB FOR AN ELECTROSTATIC POWDER COATING PLANT | |
| DE2348269C2 (en) | Gas dedusting device | |
| EP1362208B1 (en) | Extractor hood with a fat filter | |
| EP3330660A1 (en) | Method, use and device for cleaning cooling tower inserts | |
| AT408847B (en) | METHOD AND DEVICE FOR PURIFYING AIR POLLUTED WITH PAINT PARTICLES | |
| DE4408247A1 (en) | Floor cleaning machine for sports halls | |
| EP0081166A1 (en) | Device for spray treatment, especially for spray-painting articles | |
| DE4410884A1 (en) | Portable barbecue with built-in extractor | |
| DE4041165C1 (en) | Drop separator of gas washed - which is cleaned by water jets from nozzle pipes positioned perpendicular to lamellae packs mounted on supports | |
| DE2823333C2 (en) | ||
| EP0867665A2 (en) | Method to improve air circulation in a clean air cabine | |
| DE3145548A1 (en) | Device for aerating and/or ventilating rooms | |
| EP0958977A2 (en) | Cleaning assembly for body of vehicles | |
| DE9310642U1 (en) | Area blasting device | |
| DE3103231A1 (en) | Device for sound insulation | |
| DE3104956C2 (en) | Devices for extracting paint mist from paint spray systems | |
| DE3439146A1 (en) | Shortening and cleaning unit for leeks | |
| AT402477B (en) | METHOD FOR CLEANING A FLEECE FILTER MAT | |
| EP0950435B1 (en) | Wall module of a spray booth and wall built of these modules | |
| EP0591573B1 (en) | Prefilter for paintmist exhaust systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A2 Designated state(s): PL US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| AK | Designated states |
Kind code of ref document: A3 Designated state(s): PL US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2000920529 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 09937329 Country of ref document: US |
|
| WWP | Wipo information: published in national office |
Ref document number: 2000920529 Country of ref document: EP |
|
| WWG | Wipo information: grant in national office |
Ref document number: 2000920529 Country of ref document: EP |