EP1775035B1 - Self-cleaning exhaust hood and system for cleaning an exhaust hood - Google Patents
Self-cleaning exhaust hood and system for cleaning an exhaust hood Download PDFInfo
- Publication number
- EP1775035B1 EP1775035B1 EP05022478.1A EP05022478A EP1775035B1 EP 1775035 B1 EP1775035 B1 EP 1775035B1 EP 05022478 A EP05022478 A EP 05022478A EP 1775035 B1 EP1775035 B1 EP 1775035B1
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- European Patent Office
- Prior art keywords
- cleaning
- cleaning agent
- air chamber
- cleaning system
- outgoing
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- 238000004140 cleaning Methods 0.000 title claims description 34
- 239000012459 cleaning agent Substances 0.000 claims description 32
- 239000007921 spray Substances 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000003595 mist Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims description 3
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 claims 1
- 239000003599 detergent Substances 0.000 description 34
- 239000000443 aerosol Substances 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000014541 cooking fats Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000009629 microbiological culture Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
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
- F24C15/2057—Removing cooking fumes using a cleaning liquid
-
- 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
Definitions
- the invention relates to a retrofittable cleaning system for an exhaust chamber and an exhaust chamber for venting closed rooms, with such a cleaning system.
- exhaust air chambers such as extractor hoods it comes with time to precipitation of impurities such as cooking fat or other organic exhaust air components. These contaminants are not only unhygienic but also lead to increased risk of fire inside the exhaust chamber and must therefore be removed regularly.
- the inner areas of exhaust air chambers are often difficult to access and can only be cleaned by hand without disassembly.
- a retrofit cleaning system for Exhaust air chambers are specified, which allows effective cleaning.
- the exhaust air chamber which serves for venting closed spaces, has a cleaning agent supply line and at least one spray nozzle mounted in the interior of the exhaust air chamber, which serves for spraying at least one area of the exhaust air chamber with a cleaning agent.
- the at least one spray nozzle is connected via the detergent feed line to a metering unit for metered introduction of the cleaning agent, which has an inlet opening for preferably microbiologically active cleaning agent.
- the dosing unit preferably contains a dosing agent pump.
- the detergent can be well dosed and can be promoted in a simple manner from a detergent reservoir to the spray nozzle.
- a detergent canister for microbiologically active detergent is provided in which projects into the inlet opening.
- the detergent can be easily refilled.
- the spray nozzle is designed as a mist nozzle, which generates a finely divided spray.
- the exhaust chamber is evenly wetted.
- the exhaust air chamber can be automatically cleaned at regular cleaning intervals, for example before the start of operation or after the end of the operation.
- the controlled wetting of the exhaust air chamber with cleaning agent reduces the consumption of cleaning agent, which leads to lower operating costs.
- dosing unit, detergent canister and control unit are accommodated in a closed, compact technical cabinet.
- the hygiene regulations applicable in the commercial kitchen sector can be easily adhered to.
- the exhaust air chamber is formed as a connected to a suction hood extractor hood and has an aerosol.
- the spray nozzle is arranged in such a way that the suction channel, aerosol separator and suction chamber of the extractor hood are evenly wetted with cleaning agent.
- the spray nozzle and a portion of the cleaning agent supply line arranged within the exhaust air chamber are preferably made of a chromium nickel steel. They are very easy to clean and do not cause a fire inside the exhaust chamber.
- the hood on a recessed in the hood body low-voltage control panel.
- the operating panel can be used to monitor the cleaning cycles well.
- FIG. 1 an installed in a commercial kitchen hood 20 is shown in a schematic longitudinal section.
- the extractor hood 20 is mounted above a cooking area 10 to carry away emerging steam from the kitchen during cooking.
- it is connected to a provided with a fan suction channel 21, which leads to the outside (indicated by an arrow).
- Microbiologically active cleaning agents are known per se. They contain special microorganisms, such as bacteria or other microcultures, which are able to break down organic contaminants, such as fatty and oily deposits, into water and carbon dioxide. Microbiological active cleaning agents are harmless and represent a particularly environmentally friendly method of purification. The microorganisms contained therein do not pollute the environment but continue to provide useful services in sewage treatment plants and bodies of water. In addition, such detergents are compatible with materials and cause no corrosion or embrittlement of material and / or seals. An example of such a cleaning agent that can be used with the described hood is the product "Microclean Hood" from WT-Cleancorp.
- a metering unit 32 is connected, which delivers the detergent metered to the spray nozzles 25. Via a suction line 34, the metering unit 32 is connected to a detergent canister 33.
- the metering device contains a metering pump. This promotes via the suction line 34, which projects into the detergent canister 33, small amounts of the detergent under pressure to the two spray nozzles 25.
- the metering pump delivers about 5 ml of detergent per m 2 to be cleaned surface of the hood.
- the metering device 32 can also be realized with a metering valve and a compressor which permanently pressurizes the detergent container 33, so that upon brief opening of the metering valve an intended amount of the detergent from the detergent container 33 under pressure in the detergent supply line 24 up to the spray nozzles 25 rises.
- the detergent canister 33 can either be permanently installed and provided for external refilling or it can be the standardized one supplied by the manufacturer of the microbiologically active cleaning agent Disposable canisters are used, in which then simply a hose end of the intake pipe 34 is inserted.
- the spray nozzles 25 are designed as mist nozzles, so that the under pressure promoted cleaning agent is finely atomized and the extractor hood 20 wets evenly inside.
- an emptying tap 22 is attached, which leads via a discharge line 23 into an on-site drain 15.
- a discharge line 23 into an on-site drain 15.
- the drain cock 22 which accumulates small amounts of dirty water and excess detergent, which accumulates in a collecting trough at the bottom of the hood, be discharged into the drain.
- the drain valve is automated, so that accumulating liquid quantities are regularly discharged automatically.
- a programmable control unit 35 is provided.
- the control unit 35 ensures that the cleaning of the extractor hood 20 runs fully automatically. To do this, it activates the dosing unit at pre-programmed times. In this way, cleaning intervals that occur in preprogrammed time cycles can be defined, for example, daily after the end of operation or before the start of operation. In addition, it is necessary to let the cooker hood run for about 5 minutes after spraying, so that excess detergent mist is sucked off. This is also controlled by the control unit 35 by forcing the fan of the hood during each cleaning forcibly.
- a low-voltage control panel 28 is still installed in the hood body of the hood 20. In addition to easy operation via corresponding control buttons, it enables continuous monitoring of the cleaning cycles and indicates possible malfunctions. In addition, it contains a level indicator for the detergent canister 33 and generates an alarm when the detergent is about to run low.
- the dosing unit, the detergent container and the control unit are housed in a compact and hygienic technical cabinet with common power connection 36.
- the cleaning agent supply line 24 between the extractor hood and the technical cabinet is a flexible hose line, which enables easy installation.
- detergent feed line 24 and spray nozzles 25 are made of stainless steel, for example chrome-nickel steel, in order to achieve good cleaning results and to reduce the risk of fire.
- FIG. 2 a schematic cross-section through the extractor hood 20 is shown.
- the extractor hood has an aerosol separator 26, behind which the spray nozzles 25 are arranged at a distance of approximately 50 cm.
- a lighting device 27 is integrated in the extractor hood.
- the aerosol separator is a permanent filter that serves to trap grease and dirt particles contained in the extracted fumes. He exists in Embodiment of maze-like interleaved baffles made of stainless steel and a filter arranged behind stainless steel braid. On the cold metal, grease fumes and dirt particles stick to the large surface.
- the modular design makes it easy to retrofit existing cooker hoods with the cleaning system.
- the stainless steel supply line is installed with the spray nozzles only within the hood and connected via the flexible supply line of the external technical cabinet with the required for operation integrated control and regulation, metering pump and detergent container.
- the cleaning system can not only be installed in extractor hoods, but is suitable for all types of commercial exhaust air chambers, such as counter hoods, grill hoods, trapeze hoods or trapezoidal ducts.
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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)
- Cleaning By Liquid Or Steam (AREA)
Description
Die Erfindung betrifft ein nachrüstbares Reinigungssystem für eine Abluftkammer sowie eine Abluftkammer zum Entlüften geschlossener Räume, mit einem solchen Reinigungssystem.The invention relates to a retrofittable cleaning system for an exhaust chamber and an exhaust chamber for venting closed rooms, with such a cleaning system.
In Abluftkammern wie beispielsweise Dunstabzugshauben kommt es mit der Zeit zu Niederschlag von Verunreinigungen wie Bratfett oder anderen organischen Abluftbestandteilen. Diese Verunreinigungen sind nicht nur unhygienisch sondern führen auch zu erhöhter Brandgefahr im Inneren der Abluftkammer und müssen daher regelmäßig entfernt werden. Die inneren Bereiche von Abluftkammern sind aber häufig schlecht zugänglich und können nur schwerlich ohne Demontage von Hand gereinigt werden.In exhaust air chambers such as extractor hoods it comes with time to precipitation of impurities such as cooking fat or other organic exhaust air components. These contaminants are not only unhygienic but also lead to increased risk of fire inside the exhaust chamber and must therefore be removed regularly. The inner areas of exhaust air chambers are often difficult to access and can only be cleaned by hand without disassembly.
Bekannt sind Dunstanzugshauben, bei denen durch integrierte Sprühdüsen von Zeit zu Zeit heißes Wasser als Reinigungsmittel ins Innere der Dunstabzugshaube gesprüht wird, um Verunreinigungen zu lösen und fortzuschwemmen. Diese Art der Reinigung ist aber insbesondere bei fetthaltigen Ablagerungen wenig effizient.Known are hoods in which hot water is sprayed as a cleaning agent inside the hood by integrated spray nozzles from time to time to solve impurities and wegzuschwemmen. However, this type of cleaning is not very efficient, especially with fatty deposits.
Aus dem Dokument
Es ist daher eine Aufgabe der vorliegenden Erfindung, eine Abluftkammer mit integriertem Reinigungssystem anzugeben, bei der eine wirkungsvollere Reinigung möglich ist. Außerdem soll ein nachrüstbares Reinigungssystem für Abluftkammern angegeben werden, welches eine wirkungsvolle Reinigung ermöglicht.It is therefore an object of the present invention to provide an exhaust chamber with integrated cleaning system, in which a more effective cleaning is possible. In addition, a retrofit cleaning system for Exhaust air chambers are specified, which allows effective cleaning.
Die Aufgabe wird bezüglich des Reinigungssystems gelöst durch die Merkmale des Anspruch 1 und bezüglich der Abluftkammer durch die Merkmale des Anspruchs. Vorteilhafte Ausgestaltungen sind in den abhängigen Ansprüchen angegeben.The object is achieved with respect to the cleaning system by the features of claim 1 and with respect to the exhaust chamber by the features of the claim. Advantageous embodiments are specified in the dependent claims.
Die Abluftkammer, die zum Entlüften geschlossener Räume dient, weist eine Reinigungsmittelzuleitung und mindestens eine im Inneren der Abluftkammer angebrachte Sprühdüse auf, die zum Besprühen mindestens eines Bereiches der Abluftkammer mit einem Reinigungsmittel dient. Erfindungsgemäß ist die mindestens eine Sprühdüse über die Reinigungsmittelzuleitung mit einer Dosiereinheit zur dosierten Einleitung des Reinigungsmittels verbunden, die eine Einlaßöffnung für vorzugsweise mikrobiologisch aktives Reinigungsmittel aufweist.The exhaust air chamber, which serves for venting closed spaces, has a cleaning agent supply line and at least one spray nozzle mounted in the interior of the exhaust air chamber, which serves for spraying at least one area of the exhaust air chamber with a cleaning agent. According to the invention, the at least one spray nozzle is connected via the detergent feed line to a metering unit for metered introduction of the cleaning agent, which has an inlet opening for preferably microbiologically active cleaning agent.
Dadurch kann die Abluftkammer im Inneren mit einem mikrobiologisch aktiven Reinigungsmittel ausgesprüht werden, welches organische Ablagerungen abbaut und somit ohne mechanische Einwirkung restlos entfernt. Durch die gezielte Ausbringung der mikrobiologischen Kulturen entfallen Abdeckungs- oder Demontagearbeiten zur regelmäßigen Reinigung der Abluftkammer.As a result, the exhaust air chamber can be sprayed inside with a microbiologically active cleaning agent, which degrades organic deposits and thus completely removed without mechanical action. The targeted application of microbiological cultures eliminates cover or disassembly work for regular cleaning of the exhaust chamber.
Die Dosiereinheit enthält vorzugsweise eine Dosiermittelpumpe. Dadurch läßt sich das Reinigungsmittel gut dosieren und kann auf einfache Weise aus einem Reinigungsmittelreservoir zur Sprühdüse gefördert werden.The dosing unit preferably contains a dosing agent pump. As a result, the detergent can be well dosed and can be promoted in a simple manner from a detergent reservoir to the spray nozzle.
Zweckmäßig ist ein Reinigungsmittelkanister für mikrobiologisch aktives Reinigungsmittel vorgesehen, in den die Einlaßöffnung hineinragt. In einen Reinigungsmittelkanister kann das Reinigungsmittel leicht nachgefüllt werden.Suitably, a detergent canister for microbiologically active detergent is provided in which projects into the inlet opening. In a detergent canister, the detergent can be easily refilled.
Vorteilhaft ist eine Füllstandsanzeige zur Anzeige des Reinigungsmittelstandes im Reinigungsmittelkanister vorgesehen, über die der Füllstand einfach überwacht und rechtzeitig bevor das Reinigungsmittel leer ist ein Alarm ausgelöst werden kann.Advantageously, a level indicator for indicating the cleaning agent level is provided in the detergent canister, over which the level is easily monitored and in good time before the detergent is empty, an alarm can be triggered.
Vorzugsweise ist die Sprühdüse als Nebeldüse ausgebildet, die einen feinverteilten Sprühnebel erzeugt. Mit einem feinverteilten Sprühnebel wird die Abluftkammer gleichmäßig benetzt. Dadurch kann mikrobiologisch aktives Reinigungsmittel besonders wirksam und sparsam eingesetzt werden.Preferably, the spray nozzle is designed as a mist nozzle, which generates a finely divided spray. With a finely divided spray, the exhaust chamber is evenly wetted. As a result, microbiologically active cleaning agent can be used particularly effectively and economically.
Durch die programmierbare Steuereinheit kann die Abluftkammer in regelmäßigen Reinigungsintervallen beispielsweise vor Betriebsbeginn oder nach Betriebsende automatisch gereinigt werden. Durch die gesteuerte Benetzung der Abluftkammer mit Reinigungsmittel wird der Reinigungsmittelverbrauch reduziert, was zu niedrigeren Betriebkosten führt.By means of the programmable control unit, the exhaust air chamber can be automatically cleaned at regular cleaning intervals, for example before the start of operation or after the end of the operation. The controlled wetting of the exhaust air chamber with cleaning agent reduces the consumption of cleaning agent, which leads to lower operating costs.
Vorteilhaft sind Dosiereinheit, Reinigungsmittelkanister und Steuereinheit in einem abgeschlossenen, kompakten Technikschrank untergebracht. Dadurch können die im gewerblichen Küchenbereich geltenden Hygienevorschriften einfach eingehalten werden.Advantageously, dosing unit, detergent canister and control unit are accommodated in a closed, compact technical cabinet. As a result, the hygiene regulations applicable in the commercial kitchen sector can be easily adhered to.
Die Abluftkammer ist zweckmäßig mit einem vorzugsweise automatischen Entleerhahn versehen, der an einen Ablauf angeschlossen wird und zur Ableitung von anfallendem Schmutzwasser dient. Dadurch kann das in geringen Mengen anfallende Schmutzwasser auf einfache Weise in den bauseitigen Abwasserkanal abgeleitet werden.The exhaust chamber is expediently provided with a preferably automatic drain cock, which is connected to a drain and used for the discharge of accumulating dirty water. As a result, the resulting waste water in small amounts can be easily discharged into the on-site sewer.
Bei einer bevorzugten Ausführungsform ist die Abluftkammer als eine mit einem Absaugkanal verbundene Dunstabzugshaube ausgebildet und weist einen Aerosolabscheider auf. Die Sprühmitteldüse ist derart angeordnet, daß Absaugkanal, Aerosolabscheider und Absaugraum der Dunstabzugshaube gleichmäßig mit Reinigungsmittel benetzt werden.In a preferred embodiment, the exhaust air chamber is formed as a connected to a suction hood extractor hood and has an aerosol. The spray nozzle is arranged in such a way that the suction channel, aerosol separator and suction chamber of the extractor hood are evenly wetted with cleaning agent.
Die Sprühdüse sowie ein innerhalb der Abluftkammer angeordneter Abschnitt der Reinigungsmittelzuleitung sind vorzugsweise aus einem Chromnickelstahl hergestellt. Sie lassen sich so besonders gut reinigen und stellen keinen Brandherd innerhalb der Abluftkammer dar.The spray nozzle and a portion of the cleaning agent supply line arranged within the exhaust air chamber are preferably made of a chromium nickel steel. They are very easy to clean and do not cause a fire inside the exhaust chamber.
Zur einfachen Bedienung weist die Dunstabzugshaube ein im Haubenkörper eingelassenes Niedervolt-Bedientableau auf. Über das Bedientableau können die Reinigungszyklen gut überwacht werden.For easy operation, the hood on a recessed in the hood body low-voltage control panel. The operating panel can be used to monitor the cleaning cycles well.
Gemäß einem weiteren Aspekt der Erfindung wird ein Reinigungssystem angegeben, welches in installierte Abluftkammern eingebaut werden kann. Es umfaßt eine Reinigungsmittelzuleitung und mindestens eine Sprühdüse, die im Inneren der Abluftkammer angebracht wird um mindestens einen Bereich der Abluftkammer mit einem Reinigungsmittel zu besprühen. Mit der mindestens einen Sprühdüse ist über die Reinigungsmittelzuleitung eine Dosiereinheit verbunden , die zur dosierten Einleitung des Reinigungsmittels dient und die eine Einlaßöffnung für mikrobiologisch aktives Reinigungsmittel aufweist.According to a further aspect of the invention, a cleaning system is provided, which can be installed in installed exhaust air chambers. It comprises a detergent feed line and at least one spray nozzle, which is mounted inside the exhaust air chamber to spray at least a portion of the exhaust chamber with a cleaning agent. With the at least one spray nozzle, a dosing unit is connected via the detergent feed line, which serves for the metered introduction of the detergent and which has an inlet opening for having microbiologically active detergent.
Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnungen näher erläutert. Es zeigen:
-
Figur 1 eine schematische Frontansicht einer Dunstabzugshaube im Schnitt und -
Figur 2 eine schematische Seitenansicht der Dunstabzugshaube im Schnitt.
-
FIG. 1 a schematic front view of an extractor hood in section and -
FIG. 2 a schematic side view of the hood in section.
In
Innerhalb der Dunstabzugshaube sind zwei Sprühdüsen 25 angebracht, die an eine Reinigungsmittelzuleitung 24 angeschlossen sind. Über diese Sprühdüsen 24 kann ein mikrobiologisch aktives Reinigungsmittel in den Absaugraum der Dunstabzugshaube versprüht werden.Within the extractor hood two
Mikrobiologisch aktive Reinigungsmittel sind an sich bekannt. Sie enthalten spezielle Mikroorganismen wie Bakterien oder andere Mikrokulturen, die in der Lage sind, organische Verunreinigungen wie fett- und ölhaltige Ablagerungen zu Wasser und Kohlendioxid abzubauen. Mikrobiologische aktive Reinigungsmittel sind unschädlich und stellen eine besonders umweltverträgliche Methode der Reinigung dar. Die darin enthaltenen Mikroorganismen belasten die Umwelt nicht, sondern leisten in Kläranlagen und Gewässern weiter nützliche Dienste. Zudem sind solche Reinigungsmittel materialverträglich und verursachen keine Korrosion oder Versprödung an Material und/oder Dichtungen. Ein Beispiel für ein solches Reinigungsmittel, das mit der beschriebenen Dunstabzugshaube verwendet werden kann, ist das Produkt "Microclean Hood" der Firma WT-Cleancorp.Microbiologically active cleaning agents are known per se. They contain special microorganisms, such as bacteria or other microcultures, which are able to break down organic contaminants, such as fatty and oily deposits, into water and carbon dioxide. Microbiological active cleaning agents are harmless and represent a particularly environmentally friendly method of purification. The microorganisms contained therein do not pollute the environment but continue to provide useful services in sewage treatment plants and bodies of water. In addition, such detergents are compatible with materials and cause no corrosion or embrittlement of material and / or seals. An example of such a cleaning agent that can be used with the described hood is the product "Microclean Hood" from WT-Cleancorp.
An die Reinigungsmittelzuleitung 24 ist eine Dosiereinheit 32 angeschlossen, die das Reinigungsmittel dosiert zu den Sprühdüsen 25 fördert. Über eine Ansaugleitung 34 ist die Dosiereinheit 32 mit einem Reinigungsmittelkanister 33 verbunden. Im Ausführungsbeispiel enthält die Dosiereinrichtung eine Dosierpumpe. Diese fördert über die Ansaugleitung 34, welche in den Reinigungsmittelkanister 33 hineinragt, geringe Mengen des Reinigungsmittels unter Druck zu den beiden Sprühdüsen 25. Die Dosierpumpe fördert etwa 5 ml Reinigungsmittel pro m2 zu reinigender Fläche der Dunstabzugshaube.To the
Anstelle einer Dosierpumpe kann die Dosiereinrichtung 32 auch mit einem Dosierventil und einem Kompressor realisiert werden, der den Reinigungsmittelbehälter 33 dauerhaft unter Druck setzt, so daß bei kurzzeitigem Öffnen des Dosierventils eine vorgesehene Menge des Reinigungsmittels aus dem Reinigungsmittelbehälter 33 unter Druck in die Reinigungsmittelzuleitung 24 bis zu den Sprühdüsen 25 steigt.Instead of a metering pump, the
Der Reinigungsmittelkanister 33 kann entweder fest eingebaut und zur externen Wiederbefüllung vorgesehen sein oder es kann der vom Hersteller des mikrobiologisch aktiven Reinigungsmittels gelieferte standardisierte Einwegkanister verwendet werden, in den dann einfach ein Schlauchende der Ansaugleitung 34 gesteckt wird.The detergent canister 33 can either be permanently installed and provided for external refilling or it can be the standardized one supplied by the manufacturer of the microbiologically active cleaning agent Disposable canisters are used, in which then simply a hose end of the
Die Sprühdüsen 25 sind als Nebeldüsen ausgebildet, so daß das unter Druck geförderte Reinigungsmittel fein vernebelt wird und die Dunstabzugshaube 20 im Inneren gleichmäßig benetzt.The
An der Dunstabzugshaube 20 ist ein Entleerhahn 22 angebracht, der über eine Ableitung 23 in einen bauseitigen Abfluß 15 führt. Über den Entleerhahn 22 kann das in geringen Mengen anfallende Schmutzwasser und überschüssiges Reinigungsmittel, das sich in einer Sammelrinne am unteren Rand der Dunstabzugshaube ansammelt, in den Abfluß abgeleitet werden. Vorzugsweise ist der Entleerhahn automatisiert, so daß anfallende Flüssigkeitsmengen regelmäßig automatisch abgeleitet werden.On the
Gemäß der Erfindung ist eine programmierbare Steuereinheit 35 vorgesehen. Die Steuereinheit 35 sorgt dafür, daß die Reinigung der Dunstabzugshaube 20 vollautomatisch abläuft. Dazu aktiviert sie die Dosiereinheit zu vorprogrammierten Zeiten. Auf diese Weise lassen sich in vorprogrammierten Zeitzyklen ablaufende Reinigungsintervalle festlegen, beispielsweise täglich nach Betriebsende oder vor Betriebsbeginn. Zudem ist es notwendig , die Dunstabzugshaube nach dem Besprühen noch etwa 5 min laufen zu lassen, damit überschüssiger Reinigungsmittelnebel abgesaugt wird. Dies wird ebenfalls von der Steuereinheit 35 gesteuert, indem der Lüfter der Dunstabzugshaube während jeder Reinigung zwangsweise angeschaltet wird.According to the invention, a
Zusätzlich ist in den Haubenkörper der Dunstabzugshaube 20 noch ein Niedervolt-Bedientableau 28 eingebaut. Es ermöglicht neben einer einfachen Bedienung über entsprechende Bedientasten eine kontinuierliche Überwachung der Reinigungszyklen und zeigt mögliche Fehlfunktionen an. Außerdem enthält es eine Füllstandsanzeige für den Reinigungsmittelkanister 33 und erzeugt einen Alarm, wenn das Reinigungsmittel zur Neige zu gehen droht.In addition, a low-
Die Dosiereinheit, der Reinigungsmittelbehälter und die Steuereinheit sind in einem kompakten und hygienischen Technikschrank mit gemeinsamem Stromanschluß 36 untergebracht. Die Reinigungsmittelzuleitung 24 zwischen Dunstabzugshaube und Technikschrank ist eine flexible Schlauchleitung, die eine einfachste Verlegung ermöglicht. Innerhalb der Dunstabzugshaube sind Reinigungsmittelzuleitung 24 und Sprühdüsen 25 aus Edelstahl, beispielsweise Chromnickelstahl ausgeführt, um gute Reinigungsergebnisse zu erzielen und die Brandgefahr zu vermindern.The dosing unit, the detergent container and the control unit are housed in a compact and hygienic technical cabinet with
In
Der Aerosolabscheider ist ein dauerhafter Filter, der dazu dient, in den abgesaugten Dünsten enthaltene Fett- und Schmutzpartikel abzufangen. Er besteht im Ausführungsbeispiel aus labyrinthartig verschachtelten Leitblechen aus Edelstahl und einem dahinter angeordneten Filter aus Edelstahlgeflecht. An dem kalten Metall schlagen sich Fettdämpfe nieder und Schmutzpartikel bleiben an der großen Oberfläche haften.The aerosol separator is a permanent filter that serves to trap grease and dirt particles contained in the extracted fumes. He exists in Embodiment of maze-like interleaved baffles made of stainless steel and a filter arranged behind stainless steel braid. On the cold metal, grease fumes and dirt particles stick to the large surface.
Selbstverständlich können in der Dunstabzugshaube auch andere Arten von Filtern eingesetzt werden, wie beispielsweise Aktivkohlefilter.Of course, other types of filters can be used in the cooker hood, such as activated carbon filter.
Durch das regelmäßige Besprühen des Aerosolabscheiders 26 mit dem mikrobiologisch aktiven Reinigungsmittel werden abgeschiedene Fett- und Schmutzpartikel wirkungsvoll abgebaut und entfernt. Der Aerosolabscheider kann so annähernd wartungsfrei über lange Zeiträume betrieben werden. Bei täglichem Einsatz in gewerblichen Küchen ist es lediglich alle 14 Tage empfehlenswert, den Filter zusätzlich mit warmem Wasser auszuwaschen.Regular spraying of the
Durch den modularen Aufbau ist eine einfache Nachrüstung vorhandener Dunstabzugshauben mit dem Reinigungssystem möglich. Dazu wird lediglich innerhalb der Haube die Edelstahlzuleitung mit den Sprühdüsen installiert und über die flexible Zuleitung der externe Technikschrank mit der zum Betrieb erforderlichen integrierten Steuer- und Regeltechnik, Dosierpumpe und Reinigungsmittelbehälter angeschlossen.The modular design makes it easy to retrofit existing cooker hoods with the cleaning system. For this purpose, the stainless steel supply line is installed with the spray nozzles only within the hood and connected via the flexible supply line of the external technical cabinet with the required for operation integrated control and regulation, metering pump and detergent container.
Das Reinigungssystem kann nicht nur in Dunstabzugshauben installiert werden, sondern eignet sich für alle Arten von gewerbsmäßig genutzten Abluftkammern, wie beispielsweise Tresenhauben, Grillhauben, Trapezhauben oder Trapezkanäle.The cleaning system can not only be installed in extractor hoods, but is suitable for all types of commercial exhaust air chambers, such as counter hoods, grill hoods, trapeze hoods or trapezoidal ducts.
Claims (9)
- Cleaning system for an outgoing-air chamber (20) having a fan, comprisinga) a cleaning agent supply line (24) and at least one spray nozzle (25) which can be mounted inside the outgoing-air chamber (20) for spraying at least one region of the outgoing-air chamber (25) with a cleaning agent;b) a metering unit (32) connected to the at least one spray nozzle (25) via the cleaning agent supply line (24) for the metered introduction of the cleaning agent, said metering unit having an inlet opening (34) for microbiologically active cleaning agent;c) a programmable control unit (35) for activating the metering unit (32);
characterized in thatd) the control unit (35) is programmed such that it acts to activate the metering unit (32) during cleaning intervals which proceed at preprogrammed time intervals, to automatically switch on the fan of the outgoing-air chamber (20) during each cleaning operation, and to allow the fan to run for about a further 5 minutes after the cleaning operation. - Cleaning system according to Claim 1, characterized in that the metering unit (32) comprises a metering means pump.
- Cleaning system according to Claim 1 or 2, characterized in that the inlet opening (34) protrudes into a cleaning agent canister (33) for the preferably microbiologically active cleaning agent.
- Cleaning system according to Claim 3, characterized by a filling level indicator for indicating the cleaning agent level in the cleaning agent canister (33).
- Cleaning system according to one of Claims 1 to 4, characterized in that the at least one spray nozzle (25) is designed as a mist nozzle for generating a finely dispersed spray mist.
- Cleaning system according to one of the preceding claims, characterized in that the metering unit (32), cleaning agent canister (33) and control unit (35) are accommodated in a self-contained service cabinet (30).
- Cleaning system according to one of the preceding claims, characterized by a drain cock (22) which can be connected to an outflow (15) in order to discharge dirty water which arises.
- Cleaning system according to one of the preceding claims, characterized in that the at least one spray nozzle (25) and a portion of the cleaning agent supply line (24) that is to be arranged inside the outgoing-air chamber are made of a chromium-nickel steel.
- Outgoing-air chamber for venting closed spaces, characterized in that it has a cleaning system according to one of the preceding claims.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05022478.1A EP1775035B1 (en) | 2005-10-14 | 2005-10-14 | Self-cleaning exhaust hood and system for cleaning an exhaust hood |
PL05022478T PL1775035T3 (en) | 2005-10-14 | 2005-10-14 | Self-cleaning exhaust hood and system for cleaning an exhaust hood |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05022478.1A EP1775035B1 (en) | 2005-10-14 | 2005-10-14 | Self-cleaning exhaust hood and system for cleaning an exhaust hood |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1775035A1 EP1775035A1 (en) | 2007-04-18 |
EP1775035B1 true EP1775035B1 (en) | 2016-08-31 |
Family
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Application Number | Title | Priority Date | Filing Date |
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EP05022478.1A Active EP1775035B1 (en) | 2005-10-14 | 2005-10-14 | Self-cleaning exhaust hood and system for cleaning an exhaust hood |
Country Status (2)
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EP (1) | EP1775035B1 (en) |
PL (1) | PL1775035T3 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103062814A (en) * | 2011-10-19 | 2013-04-24 | 正太平洋(中国)厨具有限公司 | Automatic cleaning mechanism of fume extractor |
DE102012012689A1 (en) * | 2012-06-27 | 2014-04-17 | Südluft Systemtechnik GmbH & Co. KG | Method for operating an exhaust air system and exhaust air system for a kitchen |
CN104048343A (en) * | 2014-07-02 | 2014-09-17 | 上海美力源环保科技有限公司 | Kitchen oil fume purification method and device |
CN104048341A (en) * | 2014-07-02 | 2014-09-17 | 上海美力源环保科技有限公司 | Kitchen oil fume purification method and device |
CN104048342B (en) * | 2014-07-02 | 2017-02-01 | 上海美力源环保科技有限公司 | Kitchen oil fume purification method and device |
CN104266243B (en) * | 2014-09-05 | 2016-08-24 | 宁波方太厨具有限公司 | A kind of oil strain formula range hood |
GB2540148B (en) * | 2015-07-06 | 2018-05-09 | Quintex Systems Ltd | Controlling contaminant build-up in an air extraction system |
DE102016117533A1 (en) * | 2016-09-16 | 2018-03-22 | Berling Aero IP UG (haftungsbeschränkt) | Extractor device with light control |
SE544067C2 (en) * | 2019-06-26 | 2021-11-30 | Bioteria Tech Ab | Methods, system and device for controlling biological treatment processes and systems |
CN110567019A (en) * | 2019-09-19 | 2019-12-13 | 庞敏 | Easy-to-clean range hood |
CN110715337B (en) * | 2019-11-25 | 2024-05-28 | 江西经济管理干部学院 | Automatic cleaning panel's smoke ventilator |
GB2604887A (en) * | 2021-03-17 | 2022-09-21 | Probionate Ltd | Cleaning systems and methods for extraction or ventilation ducts |
CN117968125B (en) * | 2024-03-29 | 2024-06-25 | 珠海格力电器股份有限公司 | Range hood and cleaning control method thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US4753218A (en) * | 1987-02-09 | 1988-06-28 | Cambridge Engineering, Inc. | Continuous water wash hood type ventilating system |
DE19509611C2 (en) * | 1995-03-16 | 1998-08-06 | Rentschler Reven Lueftungssyst | Extractor hood |
JPH10309419A (en) * | 1997-04-23 | 1998-11-24 | Innu Science Canada Inc | Method and apparatus for combined removal and biodegradation of oil and fat substance from ventilation fan in kitchen |
DE19912913A1 (en) * | 1999-03-22 | 2000-09-28 | Manfred H Langner | Method and device for cleaning extractor hoods |
-
2005
- 2005-10-14 PL PL05022478T patent/PL1775035T3/en unknown
- 2005-10-14 EP EP05022478.1A patent/EP1775035B1/en active Active
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PL1775035T3 (en) | 2017-02-28 |
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