EP1183417B1 - Cleaning device and method for cleaning, using liquid and/or supercritical gases - Google Patents
Cleaning device and method for cleaning, using liquid and/or supercritical gases Download PDFInfo
- Publication number
- EP1183417B1 EP1183417B1 EP00931206A EP00931206A EP1183417B1 EP 1183417 B1 EP1183417 B1 EP 1183417B1 EP 00931206 A EP00931206 A EP 00931206A EP 00931206 A EP00931206 A EP 00931206A EP 1183417 B1 EP1183417 B1 EP 1183417B1
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- EP
- European Patent Office
- Prior art keywords
- cleaning
- vessel
- cleaning device
- container
- pressure vessel
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0021—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by liquid gases or supercritical fluids
-
- 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
- B08B3/04—Cleaning involving contact with liquid
- B08B3/044—Cleaning involving contact with liquid using agitated containers in which the liquid and articles or material are placed
Definitions
- the invention relates to a cleaning device comprising a pressure vessel, at least one cleaning container arranged therein, in which the cleaning is carried out, and means for supplying the cleaning device with a Cleaning fluid, wherein the cleaning container or containers to the pressure container are movably arranged, means for moving within the pressure vessel of the cleaning container are provided, and with the aid of these means the or Cleaning container to the pressure vessel in rotary and / or translational motion is or are arranged to be movable.
- the invention further relates to a device for cleaning substrates by means of liquefied and / or supercritical gases as cleaning fluid in at least one arranged within a pressure vessel cleaning vessel, the or the Cleaning container compared to the pressure container at least during cleaning is or will be moved temporarily, with the help of within the pressure vessel arranged means for moving the cleaning container or the Cleaning tank without moving axles penetrating the pressure tank and / or without magnetic coupling of the cleaning container or the Cleaning container with respect to the pressure container in a rotary and / or Translational movement is or will be moved.
- Generic cleaning devices for example for cleaning processes with liquid or supercritical carbon dioxide, but also with any other Substances or components used as cleaning fluid are usually for operating pressures of over 60 bar designed to improve the cleaning result, it is required that a relative movement between the items to be cleaned and the Cleaning fluid is generated. This relative movement can be generated that by means of appropriate nozzle systems, the items to be cleaned are moved in a Cleaning drum takes place without this cleaning drum itself being moved.
- the rotating movement of the cleaning drum can also change Direction of rotation and / or speed of rotation.
- the pressure recipient or Cleaning pressure container located cleaning drum over a the recipient penetrating axis or shaft driven, such as in the DE-A 42 30 485 is disclosed.
- this requires complex sealing or Stuffing box systems because the drive motor is outside the pressure tank is arranged.
- a drive by means of rotary motion using a magnetic drive motor coupled cleaning drum is for example from WO-A 94/01613 in connection with the cleaning of substrates by means of liquefied and / or supercritical Gases known as cleaning fluids
- WO 99/49122 A which falls under Art 54 (3) EPu, discloses a cleaning device with a pressure vessel, at least one therein arranged cleaning container in which the cleaning is carried out, and means for supplying the cleaning device with a cleaning fluid, the cleaning container or containers being movable to the pressure container are arranged, being within the pressure vessel Means for moving the cleaning container are provided and with the help of these means the cleaning container or containers to the Pressure vessel movably arranged in rotary and / or translational movement is or are that the means for moving the cleaning container one Include hydraulic motor.
- the object of the present invention is therefore to insert a device to point out those mentioned at the beginning which avoid the disadvantages mentioned and an improved cleaning system for cleaning at different
- the invention is based on the idea, on the one hand, due to the disadvantages described no magnetic coupling of the cleaning container to the drive means and on the other hand the moving means for moving within the pressure vessel Arrange the cleaning container and achieve that in a way that is expensive moving axes to be sealed and penetrating the pressure vessel (axes of rotation) be avoided.
- the drive means are inside the pressure vessel and arranged inside and / or preferably outside the cleaning container
- the means for moving the cleaning container include Electric motors.
- this may result in only non-moving bushings in the form of electrical lines an electric motor as a drive for the cleaning container.
- the cleaning container can be used, for example, as a cleaning drum or cleaning basket be trained.
- the at least one supply line to the Fill with cleaning fluid and / or for emptying before moving the cleaning container uncoupled or wound up when moving the cleaning container become.
- the inside of the pressure vessel arranged cleaning container moves, preferably rotated thereby there is a relative movement between the items to be cleaned (substrate) and the cleaning fluid, which results in the desired improvement in the cleaning effect.
- cleaning fluids in particular all known liquefiable Usable gases, for example carbon dioxide, nitrous oxide, Sulfur hexafluoride or hydrocarbons, such as methane, ethane, propane, ethene, Propene etc., and halogenated hydrocarbons such as trifluoromethane and Mixtures of the substances mentioned.
- liquefiable Usable gases for example carbon dioxide, nitrous oxide, Sulfur hexafluoride or hydrocarbons, such as methane, ethane, propane, ethene, Propene etc.
- halogenated hydrocarbons such as trifluoromethane and Mixtures of the substances mentioned.
- Carbon dioxide has proven to be a particularly suitable fluid in the context of the invention proven because it has special advantages. Carbon dioxide is not flammable or explosive, carbon dioxide is in large quantities as a by-product of industrial Process available inexpensively, carbon dioxide is compared to others Solvents have little environmental impact and carbon dioxide is chemically inert. There are also the thermodynamic properties of carbon dioxide Use as a cleaning agent.
- Cleaning is preferably carried out using liquefied (subcritical) carbon dioxide. This applies in particular to the cleaning of textiles, carpets and the like.
- the cleaning can be carried out at all suitable temperatures respectively.
- a pressure below 100 bar preferably between 25 and 80 bar, particularly preferably at a pressure between 30 and 70 bar cleaned.
- Cleaning is advantageously carried out at a temperature between -20 and +40 ° C. preferably at a temperature between -15 and +25 ° C, particularly preferred performed at a temperature between 0 and +15 ° C.
- good cleaning results were achieved with liquefied carbon dioxide a pressure between 25 and 75 bar and a temperature between -15 and +25 ° C, especially at a pressure between 40 and 50 bar and a temperature between +5 and +10 ° C can be achieved.
- Cleaning fluid cleaning enhancers such as chemical solvents added.
- Chemical solvents such as surfactants, HCl, alcohols, anhydrous Soaps etc. increase the dissolving power of the cleaning fluid used liquefied gas.
- the cleaning device according to the invention shown in the figure comprises a Vessel or pressure vessel 1 - hereinafter referred to only as pressure vessel - as well as a rotary and / or translational movement arranged therein trained cleaning container 2.
- the material to be cleaned brought in.
- the goods to be cleaned can be both bulk goods, Textiles, carpets or the like as well as industrial parts such as workpieces, Act machine parts, assembly groups etc.
- the cleaning device according to the invention is filled and emptied via at least one access opening, not shown in the figure, for pressurized ongoing cleaning processes must be provided with an appropriate seal
- the cleaning fluid is the cleaning device according to the invention via a in supply or supply line not shown in the figure. It comes from for example from a storage and / or storage container.
- This feed line can, according to an advantageous embodiment of the cleaning device according to the invention, have a clutch, in particular a quick-action coupling.
- the feed line Amount of cleaning fluid supplied is the desired via the feed line Amount of cleaning fluid supplied. Then, for example, the feed line decoupled.
- the feed line has a winding device.
- a winding mechanism allows the cleaning container 2 a certain number of revolutions - this is limited by the cable length - in every direction can perform without having to disconnect the supply line.
- the cleaning container 2 is - circumferentially - With two rollers 4 and 4 'on corresponding roller conveyors 3 and 3'. This Roller conveyors can now be are moved or driven, resulting in a rotary movement of the cleaning container 2 results.
- the cleaning container 2 is driven by an electric motor, on the roller conveyors 3 and 3 ' acts. If the cleaning fluid is a electrically non-conductive medium is a complete pressure coupling of the Electric motor not required.
- the figure does not show additional or alternative devices that allow movement of the cleaning container 2 in the axial direction, for example.
- Cleaning device can be done by repeatedly reversing the Direction of rotation of the cleaning container with 2 different pendulum movements different speeds can be realized.
- the cleaning container can have 2 internals, which the Influence movement of the items to be cleaned.
- a swirling of the cleaning fluid can be achieved, whereby whose cleaning effect is enhanced.
- the cleaning container 2 from the pressure container 1 is removable. This is particularly useful in industrial applications the cleaning device according to the invention a quick emptying and refilling allows.
- the pressure vessel 1 is preferably cylindrical, barrel-shaped or spherical. The last two options mentioned are particularly special easy to look at and allow minimal wall thicknesses for the container or recipients.
- the cleaning device according to the invention allows the realization of cleaning processes with different, pressurized cleaning fluids, such as for example with liquid or supercritical carbon dioxide, the keeps the required technical effort within limits.
- a targeted and optimized Movement of the items to be cleaned can now be realized without a rotary feedthrough become.
- due to the lack of the lossy rotary union energy expenditure required for the rotary movement is reduced
Abstract
Description
Die Erfindung betrifft eine Reinigungsvorrichtung umfassend einen Druckbehälter, wenigstens einen darin angeordneten Reinigungsbehälter, in dem die Reinigung durchgeführt wird, und Mittel zum Versorgen der Reinigungsvorrichtung mit einem Reinigungsfluid, wobei der oder die Reinigungsbehälter zu dem Druckbehälter bewegbar angeordnet sind, wobei innerhalb des Druckbehälters Mittel zum Bewegen des Reinigungsbehälters vorgesehen sind, und mit Hilfe dieser Mittel der oder die Reinigungsbehälter zu dem Druckbehälter in Dreh- und/oder Translationsbewegung bewegbar angeordnet ist oder sind.The invention relates to a cleaning device comprising a pressure vessel, at least one cleaning container arranged therein, in which the cleaning is carried out, and means for supplying the cleaning device with a Cleaning fluid, wherein the cleaning container or containers to the pressure container are movably arranged, means for moving within the pressure vessel of the cleaning container are provided, and with the aid of these means the or Cleaning container to the pressure vessel in rotary and / or translational motion is or are arranged to be movable.
Die Erfindung betrifft ferner eine Vorrichtung zum Reinigen von Substraten mittels verflüssigter und/oder überkritischer Gase als Reinigungsfluid in wenigstens einem innerhalb eines Druckbehälters angeordneten Reingungsbehälters, wobei der oder die Reinigungsbehälter gegenüber dem Druckbehälter während der Reinigung zumindest zeitweise bewegt wird oder werden, wobei mit Hilfe von innerhalb des Druckbehälters angeordneten Mitteln zum Bewegen des Reinigungsbehälters oder der Reinigungsbehälter ohne den Druckbehälter durchstoßende, bewegte Achsen und/oder ohne magnetische Kupplung des Reinigungsbehälters der oder die Reinigungsbehälter bezüglich des Druckbehälters in einer Dreh- und/oder Translationsbewegung bewegt wird oder werden.The invention further relates to a device for cleaning substrates by means of liquefied and / or supercritical gases as cleaning fluid in at least one arranged within a pressure vessel cleaning vessel, the or the Cleaning container compared to the pressure container at least during cleaning is or will be moved temporarily, with the help of within the pressure vessel arranged means for moving the cleaning container or the Cleaning tank without moving axles penetrating the pressure tank and / or without magnetic coupling of the cleaning container or the Cleaning container with respect to the pressure container in a rotary and / or Translational movement is or will be moved.
Gattungsgemäße Reinigungsvorrichtungen, die beispielsweise für Reinigungsprozesse mit flüssigem oder überkritischem Kohlendioxid, aber auch mit beliebigen anderen Stoffen bzw. Komponenten als Reinigungsfluid dienen, sind im Regelfall für Betriebsdrücke von über 60 bar ausgelegt Um das Reinigungsergebnis zu verbessern, ist es erforderlich, dass eine Relativbewegung zwischen dem Reinigungsgut und dem Reinigungsfluid erzeugt wird. Diese Relativbewegung kann dadurch erzeugt werden, dass mittels entsprechender Düsensysteme ein Bewegen des Reinigungsgutes in einer Reinigungstrommel erfolgt, ohne dass diese Reinigungstrommel selbst bewegt wird. Generic cleaning devices, for example for cleaning processes with liquid or supercritical carbon dioxide, but also with any other Substances or components used as cleaning fluid are usually for operating pressures of over 60 bar designed to improve the cleaning result, it is required that a relative movement between the items to be cleaned and the Cleaning fluid is generated. This relative movement can be generated that by means of appropriate nozzle systems, the items to be cleaned are moved in a Cleaning drum takes place without this cleaning drum itself being moved.
Bekannt ist ferner, die Reinigungstrommel selbst in eine Drehbewegung zu versetzen, um so durch ein Herabfallen des Reinigungsgutes das Reinigungsergebnis positiv zu beeinflussen. Die Drehbewegung der Reinigungstrommel kann hierbei auch mit wechselnder Drehrichtung und/oder Drehgeschwindigkeit ausgeführt werden.It is also known to set the cleaning drum itself into a rotary movement, so that the cleaning result is positive due to a drop in the items to be cleaned influence. The rotating movement of the cleaning drum can also change Direction of rotation and / or speed of rotation.
Ist die Reinigungsanlage bzw. der Reinigungsbehälter für Reinigungsprozesse, die unter einem hohen Druck stattfinden, gedacht, so wird die im Druckrezipienten bzw. Reinigungsdruckbehälter befindliche Reinigungstrommel über eine den Rezipienten durchstoßende Achse bzw. Welle angetrieben, wie dies beispielsweise in der DE-A 42 30 485 offenbart ist. Dies erfordert jedoch aufwendige Dichtungs- bzw. Stopfbuchsensysteme, da der Antriebsmotor außerhalb des Druckbehälters angeordnet ist.Is the cleaning system or the cleaning container for cleaning processes that take place under a high pressure, the pressure recipient or Cleaning pressure container located cleaning drum over a the recipient penetrating axis or shaft driven, such as in the DE-A 42 30 485 is disclosed. However, this requires complex sealing or Stuffing box systems because the drive motor is outside the pressure tank is arranged.
Neuere Erkenntnisse haben gezeigt, dass sich die Reinigungsleistung, insbesondere von Kohlendioxid bei höheren Betriebsdrücken verbessern läßt; hierbei werden Betriebsdrücke von mehr als 200 bar angedacht. Jedoch wird eine Abdichtung der Wellendurchführung mit steigendem Druck problematischer und energieintensiver. Aufgrund der für diese hohen Drücke erforderlichen Dicke der Rezipientenwand läßt sich eine berührungslose Übertragung mittels einer Magnetkupplung nicht realisieren.Recent findings have shown that cleaning performance, in particular can improve carbon dioxide at higher operating pressures; here Operating pressures of more than 200 bar are planned. However, sealing the Shaft feed through with increasing pressure more problematic and energy intensive. Due to the thickness of the recipient wall required for these high pressures a contactless transmission by means of a magnetic coupling is not possible.
Ein Antrieb mittels Drehbewegung über eine mit einem Antriebsmotor magnetisch gekuppelte Reinigungstrommel ist beispielsweise aus der WO-A 94/01613 im Zusammenhang mit der Reinigung von Substraten mittels verflüssigter und/oder überkritischer Gase als Reinigungsfluid bekanntA drive by means of rotary motion using a magnetic drive motor coupled cleaning drum is for example from WO-A 94/01613 in connection with the cleaning of substrates by means of liquefied and / or supercritical Gases known as cleaning fluids
Aber auch unabhängig von der Wahl des Drucks bei der Reinigung im Reinigungsbehälter können sich Nachteile bei einem Antrieb der Reinigungstrommel durch magnetische Kupplung dadurch ergeben, dass das Magnetfeld die Reinigung beeinflußt, beispielsweise durch in dem Reinigungsfluid befindliche Verunreinigungen, welche sich aufgrund des Magnetsfeldes in bestimmten Bereichen des Reinigungsbehälters konzentrieren können.But also regardless of the choice of pressure when cleaning in the cleaning tank can have disadvantages in driving the cleaning drum magnetic coupling result from the fact that the magnetic field influences the cleaning, for example due to impurities in the cleaning fluid, which is due to the magnetic field in certain areas of the cleaning container can concentrate.
Die WO 99/49122 A, die unter Art 54(3) EPü fällt, Offenbart eine Reinigungsvorrichtung mit einem Druckbehälter, wenigstens einen darin angeordneten Reinigungsbehälter, in dem die Reinigung durchgeführt wird, und Mitteln zum Versorgen der Reinigungsvorrichtung mit einem Reinigungsfluid, wobei der oder die Reinigungsbehälter zu dem Druckbehälter bewegbar angeordnet sind, wobei innerhalb des Druckbehälters Mittel zum Bewegen des Reinigungsbehälters vorgesehen sind und mit Hilfe dieser Mittel der oder die Reinigungsbehälter zu dem Druckbehälter in Dreh- und/oder Translationsbewegung bewegbar angeordnet ist oder sind, dass die Mittel zum Bewegen des Reinigungsbehälters einen Hydraulikmotor umfassen.WO 99/49122 A, which falls under Art 54 (3) EPu, discloses a cleaning device with a pressure vessel, at least one therein arranged cleaning container in which the cleaning is carried out, and means for supplying the cleaning device with a cleaning fluid, the cleaning container or containers being movable to the pressure container are arranged, being within the pressure vessel Means for moving the cleaning container are provided and with the help of these means the cleaning container or containers to the Pressure vessel movably arranged in rotary and / or translational movement is or are that the means for moving the cleaning container one Include hydraulic motor.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung einfügen der eingangs genannten aufzuzeigen, welche die genannten Nachteile vermeiden und eine verbesserte Reinigunganlage zur Reinigung bei unterschiedlichen The object of the present invention is therefore to insert a device to point out those mentioned at the beginning which avoid the disadvantages mentioned and an improved cleaning system for cleaning at different
Drücken zur Verfügung stellen. Dabei soll insbesondere auf den Druckbehälter durchstoßende bewegte Achsen bzw. Wellen für den Antrieb des Reinigungsbehälters verzichtet und eine Alternative zum Erzeugen der Bewegung des Reingungsbehälters mittels magnetischer Kupplung angegeben werden.Provide presses. It should in particular penetrate the pressure vessel moving axes or shafts for the drive of the cleaning container dispensed and an alternative to generating the movement of the cleaning container can be specified by means of magnetic coupling.
Diese Aufgabe wird erfindungsgemäß gemäß der Vorrichtung nach Anspruch 1 gelöst.This object is achieved according to the invention according to the device according to claim 1.
Die Erfindung basiert auf der Idee, einerseits aufgrund der beschriebenen Nachteile keine magnetische Kupplung des Reinigungsbehälters an Antriebsmittel zu verwenden und andererseits innerhalb des Druckbehälters die Bewegungsmittel zum Bewegen des Reinigungsbehälters anzuordnen und auf diese Weise zu erreichen, dass aufwendig abzudichtenden, den Druckbehälter durchstoßende, bewegte Achsen (Drehachsen) vermieden werden. Hierzu sind die Antriebsmittel innerhalb des Druckbehälters und dabei innerhalb und/oder bevorzugt außerhalb des Reinigungsbehälters angeordnetThe invention is based on the idea, on the one hand, due to the disadvantages described no magnetic coupling of the cleaning container to the drive means and on the other hand the moving means for moving within the pressure vessel Arrange the cleaning container and achieve that in a way that is expensive moving axes to be sealed and penetrating the pressure vessel (axes of rotation) be avoided. For this purpose, the drive means are inside the pressure vessel and arranged inside and / or preferably outside the cleaning container
Die Mittel zum Bewegen des Reinigungsbehälters umfassen Elektromotoren.The means for moving the cleaning container include Electric motors.
Bei der Erfindung ergeben sich dadurch gegebenfalls lediglich nicht bewegte Durchführungen in Form von elektrischen Leitungen bei einem Elektromotor als Antriebsmittel für den Reinigungsbehälter. In the invention, this may result in only non-moving bushings in the form of electrical lines an electric motor as a drive for the cleaning container.
Ausgestaltungen und Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen aufgeführt. Weitere Abwandlungen ergeben sich darüber hinaus für den Fachmann ohne weiteres aufgrund seiner Kenntnisse.Refinements and developments of the invention are in the dependent claims listed. Further modifications also arise for the person skilled in the art without further ado because of his knowledge.
Der Reinigungsbehälter kann beispielsweise als Reinigungstrommel oder Reinigungskorb ausgebildet sein.The cleaning container can be used, for example, as a cleaning drum or cleaning basket be trained.
In Weiterbildung der Erfindung kann die wenigstens eine Versorgungsleitung zum Befüllen mit Reinigungsfluid und/oder zum Entleeren vor dem Bewegen des Reinigungsbehälters abgekoppelt oder beim Bewegen des Reinigungsbehälters aufgewickelt werden.In a development of the invention, the at least one supply line to the Fill with cleaning fluid and / or for emptying before moving the cleaning container uncoupled or wound up when moving the cleaning container become.
Im Gegensatz zu dem bekannten Stand der Technik mit Erzeugen der Bewegung des Reinigungsbehälters mittels magnetischer Kupplung kann dadurch auf die bisher erforderlichen Drehdurchführungen für den Reinigungsbehälter durch den Druckbehälter verzichtet werden. Erfindungsgemäß wird nunmehr der innerhalb des Druckbehälters angeordnete Reinigungsbehälter bewegt, vorzugsweise gedreht Dadurch kommt es zu einer Relativbewegung zwischen Reinigungsgut (Substrat) und Reinigungsfluid, was die gewünschte Verbesserung der Reinigungswirkung zur Folge hat.In contrast to the known prior art with generating the movement of the Cleaning container by means of a magnetic coupling can thus be based on the previous required rotating unions for the cleaning tank through the pressure tank to be dispensed with. According to the invention, the inside of the pressure vessel arranged cleaning container moves, preferably rotated thereby there is a relative movement between the items to be cleaned (substrate) and the cleaning fluid, which results in the desired improvement in the cleaning effect.
Als erfindungsgemäße Reinigungsfluide sind insbesondere alle bekannten verflüssigbaren Gase verwendbar, beispielsweise Kohlendioxid, Distickstoffmonoxid, Schwefelhexafluorid oder Kohlenwasserstoffe, wie Methan, Ethan, Propan, Ethen, Propen etc., sowie halogenierte Kohlenwasserstoffe wie Trifluormethan und Mischungen der genannten Stoffe.As cleaning fluids according to the invention in particular all known liquefiable Usable gases, for example carbon dioxide, nitrous oxide, Sulfur hexafluoride or hydrocarbons, such as methane, ethane, propane, ethene, Propene etc., and halogenated hydrocarbons such as trifluoromethane and Mixtures of the substances mentioned.
Kohlendioxid hat sich im Rahmen der Erfindung als besonders geeignetes Fluid erwiesen, da es besondere Vorteile aufweist. Kohlendioxid ist nicht brennbar oder explosiv, Kohlendioxid steht in großen Mengen als Nebenprodukt industrieller Verfahren kostengünstig zur Verfügung, Kohlendioxid ist im Vergleich zu anderen Lösungsmitteln wenig umweltbelastend und Kohlendioxid verhält sich chemisch inert. Außerdem kommen die thermodynamischen Eigenschaften von Kohlendioxid der Anwendung als Reinigungsmittel entgegen.Carbon dioxide has proven to be a particularly suitable fluid in the context of the invention proven because it has special advantages. Carbon dioxide is not flammable or explosive, carbon dioxide is in large quantities as a by-product of industrial Process available inexpensively, carbon dioxide is compared to others Solvents have little environmental impact and carbon dioxide is chemically inert. There are also the thermodynamic properties of carbon dioxide Use as a cleaning agent.
Bevorzugt erfolgt die Reinigung mit verflüssigtem (unterkritischem) Kohlendioxid. Dies gilt insbesondere für die Reinigung von Textilien, Teppiche und dergleichen. Cleaning is preferably carried out using liquefied (subcritical) carbon dioxide. This applies in particular to the cleaning of textiles, carpets and the like.
Im Rahmen der Erfindung kann die Reingung bei allen geeigneten Temperaturen erfolgen.In the context of the invention, the cleaning can be carried out at all suitable temperatures respectively.
Erfindungsgemäß wird bei einem Druck unterhalb von 100 bar, vorzugsweise zwischen 25 und 80 bar, besonders bevorzugt bei einem Druck zwischen 30 und 70 bar gereinigt.According to the invention at a pressure below 100 bar, preferably between 25 and 80 bar, particularly preferably at a pressure between 30 and 70 bar cleaned.
Vorteilhafterweise wird die Reinigung bei einer Temperatur zwischen -20 und +40 °C, vorzugsweise bei einer Temperatur zwischen -15 und +25 °C, besonders bevorzugt bei einer Temperatur zwischen 0 und +15 °C durchgeführt.Cleaning is advantageously carried out at a temperature between -20 and +40 ° C. preferably at a temperature between -15 and +25 ° C, particularly preferred performed at a temperature between 0 and +15 ° C.
Gute Reinigungsergebnise konnten mit verflüssigtem Kohlendioxid beispielsweise bei einem Druck zwischen 25 und 75 bar und einer Temperatur zwischen -15 und +25 °C, insbesondere bei einem Druck zwischen 40 und 50 bar und einer Temperatur zwischen +5 und +10 °C erzielt werden.For example, good cleaning results were achieved with liquefied carbon dioxide a pressure between 25 and 75 bar and a temperature between -15 and +25 ° C, especially at a pressure between 40 and 50 bar and a temperature between +5 and +10 ° C can be achieved.
Besondere Vorteile im Hinblick auf den Verbrauch des Reinigungsfluids und damit die Wirtschaftlichkeit der Reinigung ergeben sich dadurch, dass das verflüssigte Gas zumindest teilweise im Kreislauf geführt wird. Entsprechende Mittel können in der Reinigungsanlage vorhanden sein.Special advantages with regard to the consumption of the cleaning fluid and thus the Cleaning efficiency results from the fact that the liquefied gas is at least partially circulated. Appropriate means can in the Cleaning system.
In einer günstigen Ausgestaltung der erfindungsgemäßen Reinigung werden dem Reinigungsfluid Reinigungsverstärker wie chemische Lösungsmittel zugegeben. Chemische Lösungsmittel wie beispielsweise Tenside, HCl, Alkohole, wasserfreie Seifen etc. erhöhen das Lösungsvermögen des als Reinigungsfluid eingesetzten verflüssigten Gases.In a favorable embodiment of the cleaning according to the invention Cleaning fluid cleaning enhancers such as chemical solvents added. Chemical solvents such as surfactants, HCl, alcohols, anhydrous Soaps etc. increase the dissolving power of the cleaning fluid used liquefied gas.
Auch die Zugabe von mechanische Scheuermitteln wie Plastikgranulat, Stahlschrot oder Schlackensand ist denkbar, um zusätzlich einen mechanischen Abtrag der Oberflächenschichten der zu lösenden Substanz zu bewirken.Also the addition of mechanical abrasives such as plastic granulate, steel shot or slag sand is conceivable to additionally remove the mechanical To effect surface layers of the substance to be dissolved.
Die Erfindung sowie einzelne Ausgestaltungen dazu sollen anhand des in der Figur dargestellten Ausführungsbeispieles näher erläutert werden.The invention as well as individual configurations for this purpose are to be explained with reference to illustrated embodiment are explained in more detail.
Hierzu zeigt die
- Figur:
- eine erfindungsgemäße Reinigungsvorrichtung.
- Figure:
- a cleaning device according to the invention.
Die in der Figur gezeigte erfindungsgemäße Reinigungsvorrichtung umfasst einen
Behälter bzw. Druckbehälter 1 - im folgenden nurmehr als Druckbehälter bezeichnet -
sowie einen darin angeordneten, in Dreh- und/oder Translationsbewegung bewegbar
ausgebildeten Reinigungsbehätter 2. In diesen wird das zu reinigende Gut (Substrat)
eingebracht. Bei dem zu reinigenden Gut kann es sich sowohl um Schüttgüter,
Textilien, Teppiche oder dergleichen als auch um industrieteile wie Werkstücke,
Maschinenbauteile, Montagegruppen etc. handeln.The cleaning device according to the invention shown in the figure comprises a
Vessel or pressure vessel 1 - hereinafter referred to only as pressure vessel -
as well as a rotary and / or translational movement arranged therein
trained
Das Befüllen und Entleeren der erfindungsgemäßen Reinigungsvorrichtung erfolgt über wenigstens eine in der Figur nicht dargestellte Zugangsöffnung, die für unter Druck ablaufende Reinigungsprozesse mit einer entsprechenden Dichtung zu versehen istThe cleaning device according to the invention is filled and emptied via at least one access opening, not shown in the figure, for pressurized ongoing cleaning processes must be provided with an appropriate seal
Das Reinigungsfluid wird der erfindungsgemäßen Reinigungsvorrichtung über eine in
der Figur nicht dargestellte Zuführ- bzw. Versorgungsleitung zugeführt. Es stammt
beispielsweise aus einem Speicher- und/oder Vorlagebehälter. Diese Zuführleitung
kann, gemäß einer vorteilhaften Ausgestaltung der erfindungsgemäßen Reinigungsvorrichtung,
eine Kupplung, insbesondere eine Schnellschlußkupplung aufweisen. Vor
dem Beginn des Reinigungsprozesses und dem dabei zumindest zeitweise erfolgenden
Bewegen des Reinigungsbehälters 2 wird über die Zuführleitung die gewünschte
Menge an Reinigungsfluid zugeführt. Anschließend wird beispielsweise die Zuführleitung
abgekoppelt.The cleaning fluid is the cleaning device according to the invention via a in
supply or supply line not shown in the figure. It comes from
for example from a storage and / or storage container. This feed line
can, according to an advantageous embodiment of the cleaning device according to the invention,
have a clutch, in particular a quick-action coupling. In front
the beginning of the cleaning process and the process that takes place at least temporarily
Moving the
Gemäß einer vorteilhaften Ausgestaltung der erfindungsgemäßen Reinigungsvorrichtung weist die Zuführleitung eine Aufwickelvorrichtung auf. Ein derartiger Aufwickelmechanismus ermöglicht es, dass der Reinigungsbehälter 2 eine bestimmte Anzahl von Umdrehungen - diese ist durch die Leitungslänge begrenzt - nach jeder Richtung ausführen kann, ohne dass die Zuführleitung abgekuppelt werden muss. Mittels dieser Ausgestaltung der Erfindung ist es möglich, die Relativbewegung zwischen dem Reinigungsgut und dem Reinigungsfluid auch während des Befüllens und Entleerens der erfindungsgemäßen Reinigungsvorrichtung aufrechtzuerhalten. According to an advantageous embodiment of the cleaning device according to the invention the feed line has a winding device. Such a winding mechanism allows the cleaning container 2 a certain number of revolutions - this is limited by the cable length - in every direction can perform without having to disconnect the supply line. By means of this Embodiment of the invention, it is possible to determine the relative movement between the Items to be cleaned and the cleaning fluid also during filling and emptying to maintain the cleaning device according to the invention.
Der Reinigungsbehälter 2 liegt - umfangsmäßig
- mit zwei Rollen 4 und 4' auf entsprechenden Rollenbahnen 3 und 3' auf. Diese
Rollenbahnen können nun mittels einer Antriebsvorrichtung,
bewegt bzw. angetrieben werden, woraus eine Drehbewegung
des Reinigungsbehälters 2 resultiert.The
Der Antrieb des Reinigungsbehälters 2 erfolgt mittels eines Elektromotores,
der auf die Rollenbahnen 3 und 3'
wirkt. Sofern es sich bei dem Reinigungsfluid um ein
elektrisch nichtleitendes Medium handelt, ist eine vollständige Druckkoppelung des
Elektromotores nicht erforderlich.The
In der Figur nicht dargestellt sind zusätzlich oder alternativ wirkende Vorrichtungen, die
beispielsweise eine Bewegung des Reinigungsbehälters 2 in axiaier Richtung ermöglichen. The figure does not show additional or alternative devices that
allow movement of the cleaning
Im Falle der in der Figur dargestellten Ausführungsform der erfindungsgemäßen Reinigungsvorrichtung können durch eine immer wieder erfolgende Umkehrung der Drehrichtung des Reinigungsbehälters 2 verschiedenste Pendelbewegungen bei unterschiedlichen Geschwindigkeiten realisiert werden.In the case of the embodiment of the invention shown in the figure Cleaning device can be done by repeatedly reversing the Direction of rotation of the cleaning container with 2 different pendulum movements different speeds can be realized.
Gemäß einer weiteren vorteilhaften Ausgestaltung der erfindungsgemäßen Reinigungsvorrichtung kann der Reinigungsbehälter 2 Einbauten aufweisen, welche die Bewegung des Reinigungsgutes beeinflussen. Mittels derartiger Einbauten kann insbesondere eine Verwirbelung des Reinigungsfluids erreicht werden, wodurch dessen Reinigungswirkung verstärkt wird.According to a further advantageous embodiment of the cleaning device according to the invention the cleaning container can have 2 internals, which the Influence movement of the items to be cleaned. By means of such internals in particular a swirling of the cleaning fluid can be achieved, whereby whose cleaning effect is enhanced.
Besonders vorteilhaft ist es, wenn der Reinigungsbehälter 2 aus dem Druckbehälter 1
entnehmbar ausgebildet ist. Dadurch wird insbesondere bei industriellen Anwendungen
der erfindungsgemäßen Reinigungsvorrichtung ein zügiges Entleeren und Neubefüllen
ermöglicht.It is particularly advantageous if the cleaning
Die möglichen Bewegungsarten des Reinigungsbehälters 2 können dadurch vervielfacht
werden, dass eine Lagerung des Reinigungsbehälters 2 auf Kurvenscheiben
und/oder mittels entsprechender, beispielsweise hydraulisch betriebener Hebelmechanismen
erfolgt. Mittels derartiger Ausgestaltungen werden, wie auch bei der Überlagerung
von Quer- und/oder Längsbewegungen, dreidimensionale Bewegungsabläufe
des Reinigungsbehälters 2 und damit auch des Reinigungsgutes möglich.The possible types of movement of the cleaning
Der Druckbehälter 1 ist vorzugsweise zylinder-, tonnen- oder kugelförmig gestaltet. Insbesondere die beiden zuletzt genannten Möglichkeiten sind als besonders spannungsgünstig anzusehen und gestatten minimale Wandstärken für den Behälter bzw. Rezipienten.The pressure vessel 1 is preferably cylindrical, barrel-shaped or spherical. The last two options mentioned are particularly special easy to look at and allow minimal wall thicknesses for the container or recipients.
Die in der Figur in Kombination gezeigten Ausgestaltungen der Erfindung bzw. der Reinigungsvorrichtung können auch lediglich einzeln vorliegen. Dies trifft insbesondere für die gezeigten Mittel zum Bewegen des Reinigungsbehälters (Antriebsmittel) zu.The embodiments of the invention or the combination shown in the figure Cleaning devices can also be present individually. This is particularly true for the means shown for moving the cleaning container (drive means).
Die erfindungsgemäße Reinigungsvorrichtung erlaubt die Realisierung von Reinigungsprozessen mit unterschiedlichsten, unter Druck stehenden Reinigungsfluiden, wie beispielsweise mit flüssigem oder überkritischem Kohlendioxid, wobei sich der erforderliche technische Aufwand in Grenzen hält. Eine zielgerichtete und optimierte Bewegung des Reinigungsgutes kann nunmehr ohne eine Drehdurchführung realisiert werden. Zudem wird aufgrund des Fehlens der verlustreichen Drehdurchführung der für die Drehbewegung erforderliche Energieaufwand verringertThe cleaning device according to the invention allows the realization of cleaning processes with different, pressurized cleaning fluids, such as for example with liquid or supercritical carbon dioxide, the keeps the required technical effort within limits. A targeted and optimized Movement of the items to be cleaned can now be realized without a rotary feedthrough become. In addition, due to the lack of the lossy rotary union energy expenditure required for the rotary movement is reduced
Claims (9)
- Cleaning device having a pressure vessel (1), at least one cleaning vessel (2) which is arranged therein and in which the cleaning is carried out, and means for supplying the cleaning device with a cleaning fluid, the cleaning vessel(s) (2) being arranged movably with respect to the pressure vessel (1), means (5, 8, 9, 13) for moving the cleaning vessel (2) being provided inside the pressure vessel (1), with the aid of which means (5, 8) the cleaning vessel(s) (2) is/are arranged movably in rotation and/or translation with respect to the pressure vessel (1), the means for moving the cleaning vessel comprising an electric motor, and the periphery of the cleaning vessel (2) resting on at least one roller track (3, 3') arranged inside the pressure vessel (1).
- Cleaning device according to Claim 1, characterized in that the means (5, 8, 9, 13) for moving the cleaning vessel (2) are designed as a drive device (5) which sets at least one of the roller tracks (3, 3') in rotary motion.
- Cleaning device according to either of Claims 1 or 2, characterized in that the cleaning vessel (2) preferably has at least one toothed ring (9), which is coupled to a drive device (5), arranged over its periphery.
- Cleaning device according to any of Claims 1 to 3, characterized in that the cleaning vessel (2) preferably has at least one vaned wheel (13), which is coupled to a drive device, such as for example at least one nozzle directed onto the vaned wheel (13), arranged over its periphery.
- Cleaning device according to any of Claims 1 to 4, characterized in that the means for supplying the cleaning device with a cleaning fluid are formed as a feed line.
- Cleaning device according to Claim 5, characterized in that a coupling, preferably a quick-fit coupling, is arranged in the feed line.
- Cleaning device according to Claim 5 or 6, characterized in that there is a device for winding up the feed line.
- Cleaning device according to one of Claims 1 to 7, characterized in that the cleaning vessel (2) has internal fittings which influence the movement of the material being cleaned.
- Cleaning device according to one of Claims 1 to 8, characterized in that the cleaning vessel (2) is designed such that it can be removed from the pressure vessel (1).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19922195 | 1999-05-12 | ||
| DE19922195A DE19922195A1 (en) | 1999-05-12 | 1999-05-12 | Cleaning arrangement has pressure container contg. at least one cleaning container and arrangement for moving cleaning container, which can be displaced and/or rotated |
| PCT/EP2000/004315 WO2000070140A1 (en) | 1999-05-12 | 2000-05-12 | Cleaning device and method for cleaning, using liquid and/or supercritical gases |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1183417A1 EP1183417A1 (en) | 2002-03-06 |
| EP1183417B1 true EP1183417B1 (en) | 2004-09-15 |
Family
ID=7908030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00931206A Expired - Lifetime EP1183417B1 (en) | 1999-05-12 | 2000-05-12 | Cleaning device and method for cleaning, using liquid and/or supercritical gases |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6821356B1 (en) |
| EP (1) | EP1183417B1 (en) |
| AT (1) | ATE276397T1 (en) |
| AU (1) | AU4921300A (en) |
| DE (2) | DE19922195A1 (en) |
| WO (1) | WO2000070140A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7044143B2 (en) * | 1999-05-14 | 2006-05-16 | Micell Technologies, Inc. | Detergent injection systems and methods for carbon dioxide microelectronic substrate processing systems |
| EP1691940A2 (en) * | 2003-04-03 | 2006-08-23 | SC Fluid Technologies, Inc. | Method and apparatus for rotation of a workpiece in supercritical fluid solutions for removing photo resist, residues and particles therefrom |
| WO2005054672A1 (en) * | 2003-12-04 | 2005-06-16 | Pp Energy Aps | Method and apparatus for treatment of a part of a wind turbine |
| WO2005097363A1 (en) * | 2004-04-05 | 2005-10-20 | Sc Fluid Technologies, Inc. | Loadbearing platform with fluid support, isolation and rotation |
| US20080060685A1 (en) * | 2006-09-08 | 2008-03-13 | Novak John S | Pulsed-gas agitation process for enhancing solid surface biological removal efficiency of dense phase fluids |
| WO2008136718A1 (en) * | 2007-05-07 | 2008-11-13 | Sanciflex Ab | Apparatus for treating material comprising pressure vessel with drum rotatably arranged inside |
| DE102010029510A1 (en) * | 2010-05-31 | 2011-12-01 | Dürr Ecoclean GmbH | Cleaning device and method for cleaning a cleaning product |
| WO2013098247A1 (en) * | 2011-12-30 | 2013-07-04 | Arcelik Anonim Sirketi | A washing machine comprising a hydraulic drive means |
| US9091017B2 (en) * | 2012-01-17 | 2015-07-28 | Co2Nexus, Inc. | Barrier densified fluid cleaning system |
| ITTO20121002A1 (en) * | 2012-11-19 | 2014-05-20 | Flainox Srl | ROTARY BASKET MACHINE FOR DYEING, WASHING OR SIMILAR OF TEXTILE ARTICLES " |
| CN115228812A (en) * | 2022-07-19 | 2022-10-25 | 杭州润通无纺科技有限公司 | Integrated spunlace non-woven fabric processing equipment and working method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000063483A1 (en) * | 1999-04-20 | 2000-10-26 | Aktiebolaget Electrolux | Apparatus for cleaning textiles with a densified liquid treatment gas |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3650129A (en) | 1970-11-09 | 1972-03-21 | Whirlpool Co | Article washing apparatus |
| US3961637A (en) * | 1974-12-12 | 1976-06-08 | Owen Sr Clyde W | Aggregate materials washing apparatus |
| AT346271B (en) | 1977-02-25 | 1978-11-10 | Poensgen & Sulzmann Gmbh Geb | CONTINUOUS DRUM MACHINE FOR TREATMENT OF TEXTILE GOODS |
| IT1254981B (en) * | 1992-06-19 | 1995-10-11 | WASHING AND STERILIZATION APPARATUS OF RUBBER CAPS, OR SIMILAR APPLICABLE IN PHARMACEUTICAL PACKAGES | |
| US5267455A (en) | 1992-07-13 | 1993-12-07 | The Clorox Company | Liquid/supercritical carbon dioxide dry cleaning system |
| DE4230485A1 (en) * | 1992-09-11 | 1994-03-17 | Linde Ag | System for cleaning with liquefied or supercritical gases |
| WO1997033031A1 (en) * | 1996-03-08 | 1997-09-12 | Todd Taricco | A super-cooled fluid temperature controlled cleaning system |
| US5669251A (en) | 1996-07-30 | 1997-09-23 | Hughes Aircraft Company | Liquid carbon dioxide dry cleaning system having a hydraulically powered basket |
| US5850747A (en) * | 1997-12-24 | 1998-12-22 | Raytheon Commercial Laundry Llc | Liquified gas dry-cleaning system with pressure vessel temperature compensating compressor |
| US6098430A (en) | 1998-03-24 | 2000-08-08 | Micell Technologies, Inc. | Cleaning apparatus |
-
1999
- 1999-05-12 DE DE19922195A patent/DE19922195A1/en not_active Withdrawn
-
2000
- 2000-05-12 DE DE50007792T patent/DE50007792D1/en not_active Expired - Fee Related
- 2000-05-12 AT AT00931206T patent/ATE276397T1/en not_active IP Right Cessation
- 2000-05-12 EP EP00931206A patent/EP1183417B1/en not_active Expired - Lifetime
- 2000-05-12 US US09/959,939 patent/US6821356B1/en not_active Expired - Fee Related
- 2000-05-12 AU AU49213/00A patent/AU4921300A/en not_active Abandoned
- 2000-05-12 WO PCT/EP2000/004315 patent/WO2000070140A1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000063483A1 (en) * | 1999-04-20 | 2000-10-26 | Aktiebolaget Electrolux | Apparatus for cleaning textiles with a densified liquid treatment gas |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE276397T1 (en) | 2004-10-15 |
| EP1183417A1 (en) | 2002-03-06 |
| US6821356B1 (en) | 2004-11-23 |
| WO2000070140A1 (en) | 2000-11-23 |
| DE50007792D1 (en) | 2004-10-21 |
| AU4921300A (en) | 2000-12-05 |
| DE19922195A1 (en) | 2000-11-16 |
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