EP1550516B1 - Vorrichtung zur Reinigung eines mit Regalen ausgestatteten Trockenschranks - Google Patents

Vorrichtung zur Reinigung eines mit Regalen ausgestatteten Trockenschranks Download PDF

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Publication number
EP1550516B1
EP1550516B1 EP04106812A EP04106812A EP1550516B1 EP 1550516 B1 EP1550516 B1 EP 1550516B1 EP 04106812 A EP04106812 A EP 04106812A EP 04106812 A EP04106812 A EP 04106812A EP 1550516 B1 EP1550516 B1 EP 1550516B1
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EP
European Patent Office
Prior art keywords
chamber
opening
implement
drier
door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04106812A
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English (en)
French (fr)
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EP1550516A1 (de
Inventor
Paolo Debolini
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Debolini Paolo
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
    • 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
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
    • F26B9/066—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers the products to be dried being disposed on one or more containers, which may have at least partly gas-previous walls, e.g. trays or shelves in a stack

Definitions

  • the present invention relates to the field of systems for washing driers with shelves which are used in particular for drying chemical and pharmaceutical products.
  • a drier of this type typically comprises a housing which defines a drying chamber in its interior, a shelving unit located inside the chamber and having a plurality of shelves, and a circuit, fixed firmly to the shelving unit, for the flow of a fluid for heating the shelves.
  • Normal maintenance requires periodic careful washing of these driers. It is also obligatory to perform extremely careful washing upon a change in the type of products being dried. In fact it is essential to prevent mutual contamination of the products with unpredictable and dangerous effects, for example, in the event of the mixing of products which react with one another or of products of completely different natures, for example, substances that are harmful to man and food additives or drugs.
  • WO-A-03/087 687 discloses an implement which can be inserted in a drier and comprises a liquid supply coupling, a distributor duct, liquid delivery ducts and spray heads.
  • the object of the present invention is therefore to provide washing systems for driers with shelves which can operate effectively and economically in the various methods of use.
  • this object is achieved by means of washing implements, driers with shelves, and washing methods having the characteristics referred to specifically in the appended claims.
  • a drier 10 comprises ( Figure 1 ) a housing 12 which defines a drying chamber 14 in its interior.
  • the housing 12 comprises a door 16 having a first opening 18 and a second opening 20 which are closed by respective plugs 22 during normal operation.
  • the door 16 opens into a sterile environment 24.
  • a removable shelving unit 26 is disposed in the chamber 14 and has a plurality of shelves 28 on which the products to be dried (which are not shown in the drawings for greater clarity) can be placed. Moreover, a circuit for the flow of a fluid for heating the shelves 28 is fixed firmly to the shelving unit 26.
  • the circuit has an inlet duct 32 and an outlet duct 30 which extend through respective openings 34 formed through a fixed wall of the housing 12 and are connected to respective heating-fluid supply and discharge pipes 40 and 38 by quick coupling means 36.
  • the heating circuit also comprises, in known manner, a manifold portion 42 and flow branches 44 formed within the various shelves 28.
  • Each of the inlet and outlet ducts 32, 30 has a radially projecting flange 46 and a portion having a threaded outer lateral surface 48 on which a ring-nut 50 having an internal threaded hole is engaged.
  • the flange 46 and the ring-nut 50 can clamp between them a radially projecting annular portion of the edge of the respective opening 34 so as to isolate the interior of the chamber 14 from the working, that is non-sterile, environment 52 adjacent the openings 34 formed in the fixed wall of the housing 12.
  • the drier 10 described above is washed with the aid ( Figure 2 ) of a cleaning-liquid container-pressurizer device 54 having a delivery pipe 56 and a return pipe 58 for the cleaning liquid, and a washing implement 60 the methods of use of which will be described in greater detail in the following portion of this description.
  • the device 54 is conventional whereas the implement 60 constitutes a subject of the present invention.
  • the implement 60 comprises a liquid-supply coupling 62, a distributor duct 64 which is supplied by the coupling, and a plurality of uniformly-spaced liquid-delivery ducts 66 which extend substantially transversely from the distributor duct 64 and carry spray heads 68 for the liquid at their respective distal ends.
  • the supply coupling 62 is oriented substantially transversely relative to the distributor duct 64 and is located in the central portion thereof on the side remote from the delivery ducts 66.
  • the number of delivery ducts 66 is equal to the number of shelves 28 of the drier 10 and the spacing of the ducts 66 is equivalent to that of the shelves 28.
  • a method for the normal maintenance washing of the above-described drier 10 provides first of all for the removal of the plugs 22 from the openings 18, 20 formed in the door 16. After the door 16 has been opened, the supply coupling 62 of the implement 60 can thus be inserted through the first opening 18 so that, after the closure of the door 16, the delivery ducts 66 of the implement 60 are interposed between the shelves 28.
  • the delivery pipe 56 of the cleaning-liquid container-pressurizer device 54 is then connected to the supply coupling 62 and the return pipe 58 of the device 56 is connected to the second opening 20 of the door 16.
  • Activation of the device 54 thus causes the cleaning liquid to be delivered into the chamber 14 through the spray heads 68 and the cleaning liquid is then discharged through the second opening 20.
  • the liquid is then caused to flow back to the container-pressurizer device 54 through the return pipe 58 and, after optional purification, can then be sprayed into the chamber 14 again.
  • the delivery of cleaning liquid is stopped and the delivery pipe 56 of the device 54 is disconnected from the supply coupling 62 and the return pipe 58 is disconnected from the second opening 20.
  • the implement 60 can thus easily be removed from the interior of the chamber 14.
  • each of the selective sealing means takes the form of a cover 72 which can be fixed selectively to a bush 74, fixed firmly to the respective opening 34, by means of a pair of connectible flanges 76, 78 which constitute the facing surfaces of the cover 72 and of the bush 74, respectively.
  • Each cover 72 is also provided with a supply duct 80 and a discharge duct 82 for the cleaning liquid.
  • the ducts 80, 82 have respective on/off valves 84.
  • the thorough washing method provides first of all for the disconnection of the inlet duct 32 and the outlet duct 30 of the heating circuit from the respective heating-fluid supply and discharge pipes 40 and 38 (see Figure 1 ) by operation of the respective quick-coupling means 36.
  • the ring-nuts 50 are then unscrewed from the respective threaded portions 48 of the ducts 30, 32, separating the ring nuts 50 from the ducts 30, 32 which are thus released from any connection with the pipes 38, 40 and the housing 12.
  • the intermediate spaces 70 are then sealed by bolting together the flanges 76, 78 which constitute the respective facing surfaces of each cover/bush pair 72/74. It is thus possible to wash the intermediate spaces 70 as a result of a flow of cleaning liquid inside them through the supply and discharge ducts 80, 82, in which the respective on/off valves 84 are open.
  • the plugs 22 are removed from the openings 18, 20 in the door 16, the supply coupling 62 of the implement 60 is inserted ( Figure 5 ) in the first opening 18, and the door 16 is closed so that the delivery ducts 66 of the implement 60 project into the chamber 14.
  • the delivery pipe 56 of the cleaning-liquid container-pressurizer device 54 is then connected to the supply coupling 62 and the return pipe 58 of the device 54 is connected to the second opening 20 of the door 16.
  • Activation of the device 54 thus causes the cleaning liquid to be delivered into the chamber 14 through the spray heads 68 and the cleaning liquid is then discharged through the second opening 20.
  • the liquid is then caused to flow back to the container-pressurizer device 54 through the return pipe 58 and, after optional purification, can be sprayed into the chamber 14 again.
  • the delivery of cleaning liquid is stopped, the delivery pipe 56 of the cleaning-liquid container-pressurizer device 54 is disconnected from the supply coupling 62, and the return pipe 58 is disconnected from the second opening 20.
  • the implement 60 can easily be removed from the interior of the chamber 14 in which the shelving unit 26 can be re-inserted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (10)

  1. Einsatz (60), der in einen Trockner (10) mit Auflagen (28) eingesetzt werden kann, um den Trockner mit einer Reinigungsflüssigkeit zu waschen, wobei der Einsatz (60) eine Kopplung (62) zum Zuführen von Flüssigkeit, einen Verteilerkanal (64), der von der Kopplung (62) versorgt wird, und eine Mehrzahl von Kanälen (66) zum Zuführen von Flüssigkeit umfasst, die sich im Wesentlichen quer vom Verteilerkanal (64) erstrecken und die jeweiligen Sprühköpfe (68) für die Flüssigkeit an ihren Enden tragen, wobei der Einsatz dadurch gekennzeichnet ist, dass die Kopplung (62) zum Zuführen im Wesentlichen quer zum Verteilerkanal (64) ausgerichtet und im mittleren Abschnitt davon angeordnet ist, auf der von den Kanälen (66) zum Zuführen entfernten Seite.
  2. Einsatz (60) nach Anspruch 1, worin die Kanäle (66) zum Zuführen gleichmäßig beabstandet sind.
  3. Trockner (10) mit Auflagen (28), worin ein Einsatz (60) nach einem der vorstehenden Ansprüche 1 bis 2 eingesetzt werden kann, wobei der Trockner umfasst:
    - ein Gehäuse (12), das eine Trocknungskammer (14) in ihrem Inneren bildet, wobei das Gehäuse (12) eine Tür (16) mit einer ersten Öffnung (18) zum Einsetzen der Zufuhrkopplung (62) des Einsatzes (60) und eine zweite Öffnung (20) zum Ableiten der Reinigungsflüssigkeit aus der Kammer (14) umfasst,
    - eine Auflageneinheit (26), die in der Kammer (14) angeordnet ist und eine Mehrzahl von Auflagen (28) umfasst, und
    - einen fest an der Auflageneinheit (26) befestigen Kreislauf zum Durchführen eines Fluides zum Aufheizen der Auflagen (28), wobei der Kreislauf einen Einlasskanal (32) und einen Auslasskanal (30) aufweist, die sich durch jeweilige Öffnungen (34) erstrecken, die durch eine befestigte Wand des Gehäuses (12) gebildet sind und mit den jeweiligen Zufuhr- und Ableitungsrohren (40, 38) für das Heizfluid verbunden werden können.
  4. Trockner (10) nach Anspruch 3, worin jeder der Einlass- und Auslasskanäle (32, 30) einen radial vorstehenden Flansch (46) und einen Abschnitt mit einer gewundenen äußeren Seitenfläche (48) aufweist, mit welchen in eine Ringmutter (50) mit einem inneren Gewindeloch eingegriffen wird, wobei der Flansch (46) und die Ringmutter (50) in der Lage sind, zwischen ihnen einen radial vorstehenden ringförmigen Abschnitt der Kante der jeweiligen Öffnung (34) einzuklemmen.
  5. Trockner (10) nach Anspruch 3 oder Anspruch 4, worin jede der Öffnungen (34) mit Mittel versehen ist, die selektiv einen abdichtbaren Zwischenraum (70) zwischen der äußeren Umgebung (52) und der Kammer (14) definieren.
  6. Trockner (10) nach Anspruch 5, worin die selektiven abdichtenden Mittel die Form einer Abdeckung (72) annehmen, die selektiv an einer Buchse (74) befestigt werden können, die fest an der Öffnung (34) befestigt ist, wobei die Abdeckung (72) mit einem Zufuhrkanal (80) und einem Ableitungskanal (82) für die Reinigungsflüssigkeit versehen ist.
  7. Trockner (10) nach Anspruch 6, worin die Zufuhr- und Ableitungskanäle (80, 82) mit jeweiligen An-/Aus-Ventilen (84) versehen sind.
  8. Trockner (10) nach Anspruch 6 oder Anspruch 7, worin die gegenüberliegenden Oberflächen der Abdeckung (72) und der Buchse (74) jeweilige Flansche (76, 78) aufweisen, die gekoppelt werden können.
  9. Verfahren zum Waschen eines Trockners (10) nach einem der vorstehenden Ansprüche 3 bis 8 mit einem Einsatz (60) nach einem der vorstehenden Ansprüche 1 bis 2, umfassend die folgenden Schritte:
    - Öffnen der Tür (16) des Gehäuses (12), Einsetzen der Zufuhrkopplung (62) des Einsatzes (60) in der ersten Öffnung (18) der Tür (16) und Schließen der Tür (16),
    - Verbinden eines Zufuhrrohrs (56) einer Druckhaltervorrichtung (54) des Behälters für die Reinigungsflüssigkeit und der Zuführkopplung (62) und eines Rückführrohrs (58) der Vorrichtung (54) mit der zweiten Öffnung (20) der Tür (16), so dass die Zufuhrkanäle (66) des Einsatzes (60) zwischen den Auflagen (28) des Trockners (10) angeordnet sind,
    - Bewirken, dass die Reinigungsflüssigkeit in die Kammer (14) durch die Sprühköpfe (68) zugeführt wird, wobei die Reinigungsflüssigkeit dann von der Kammer (14) durch die zweite Öffnung (20) abgeleitet und in die Druckhaltervorrichtung (54) für den Behälter zurückgeführt wird,
    - Lösen des Zufuhrrohrs (56) von der Druckhaltervorrichtung (54) für den Behälter für die Reinigungsflüssigkeit von der Zufuhrkopplung (62) und des Rückführrohrs (58) der Vorrichtung (54) von der zweiten Öffnung (20) der Tür (16) des Gehäuses (12), und
    - Entfernen des Einsatzes (60) aus dem Inneren der Kammer (14).
  10. Verfahren zum Waschen eines Trockners (10) nach einem der vorstehenden Ansprüche 5 bis 8 mit einem Einsatz (60) nach einem der vorstehenden Ansprüche 1 bis 2, umfassend die folgenden Schritte:
    - Lösen des Einlasskanals (32) und des Auslasskanals (30) des Heizkreislaufs von den jeweiligen Zufuhr- und Ableitungsrohren (40, 38) für das Heizfluid,
    - Abdichten der Zwischenräume (70), die zwischen der äußeren Umgebung (52) und der Kammer (14) angeordnet sind, in der Region der in einer befestigten Wand des Gehäuses (12) gebildeten Öffnungen (34),
    - Waschen der Zwischenräume (70) mit der Reinigungsflüssigkeit,
    - Öffnen der Tür des Gehäuses (16) und Entfernen der Auflageeinheit (26) von der Kammer (14), wobei die gewaschenen Zwischenräume (70) mit der Kammer (14) in Kommunikation gebracht werden,
    - Waschen der Auflageeinheit (26) außerhalb der Kammer (14),
    - Einsetzen der Zufuhrkopplung (62) des Einsatzes (60) in die erste Öffnung (18) der Tür (16) des Gehäuses (12) und Schließen der Tür (16) des Gehäuses (12),
    - Verbinden des Zufuhrrohrs (56) der Druckhaltervorrichtung (54) für den Behälter mit der Zufuhrkopplung (62) und des Rückführrohrs (58) der Vorrichtung (54) mit der zweiten Öffnung (20) der Tür (16) des Gehäuses (12),
    - Bewirken, dass die Reinigungsflüssigkeit in die Kammer (14) durch die Sprühköpfe (68) zugeführt wird, wobei die Reinigungsflüssigkeit durch die zweite Öffnung (20) abgeleitet und in die Druckhaltervorrichtung (54) für den Behälter zurückgeführt wird,
    - Lösen des Zufuhrrohrs (56) von der Druckhaltervorrichtung (54) für den Behälter für die Reinigungsflüssigkeit von der Zufuhrkopplung (62) und des Rückführrohrs (58) der Vorrichtung (54) von der zweiten Öffnung (20) der Tür (16) des Gehäuses (12),
    - Öffnen der Tür (16) des Gehäuses (12) und Entfernen des Einsatzes (60) aus dem Inneren der Kammer (14),
    - erneutes Einsetzen der Auflageeinheit (26) in die Kammer (14) und Schließen der Tür (16),
    - Entfernen der Abdichtung der Zwischenräume (70) in Bezug auf die äußere Umgebung (52) und
    - Verbinden der Einlass- und Auslasskanäle (32 und 30) des Heizkreislaufs mit den jeweiligen Zufuhr- und Ableitungsrohren (40, 38) für das Heizfluid.
EP04106812A 2003-12-30 2004-12-21 Vorrichtung zur Reinigung eines mit Regalen ausgestatteten Trockenschranks Expired - Lifetime EP1550516B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001051A ITTO20031051A1 (it) 2003-12-30 2003-12-30 Sistema di lavaggio di essiccatori a ripiani.
ITTO20031051 2003-12-30

Publications (2)

Publication Number Publication Date
EP1550516A1 EP1550516A1 (de) 2005-07-06
EP1550516B1 true EP1550516B1 (de) 2012-02-08

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EP04106812A Expired - Lifetime EP1550516B1 (de) 2003-12-30 2004-12-21 Vorrichtung zur Reinigung eines mit Regalen ausgestatteten Trockenschranks

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EP (1) EP1550516B1 (de)
AT (1) ATE544530T1 (de)
IT (1) ITTO20031051A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007051000A1 (de) * 2007-10-25 2009-04-30 Robert Bosch Gmbh Vorrichtung und Verfahren zur Reinigung geschlossener Räume einer Maschine
SG179155A1 (en) * 2009-09-15 2012-04-27 Quantum Global Tech Llc Method and apparatus for showerhead cleaning
DE102011054683B4 (de) * 2011-10-21 2023-11-09 Krones Aktiengesellschaft Trocknungsvorrichtung für Behälter und Verfahren zum Reinigen einer solchen Trocknungsvorrichtung
CN113058938B (zh) * 2021-03-30 2022-07-15 北京同仁堂健康药业（福州）有限公司 用于生产燕窝的设备及其生产方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19609821A1 (de) * 1996-03-13 1997-09-18 Gerhard Hestermann Kammer-Spritzwaschmaschine zum mehrstufigen Vorbehandeln zu beschichtender Werkstücke
EP1495275B1 (de) * 2002-04-16 2011-11-16 Bucher Unipektin AG Trockenschrank mit reinigungsvorrichtung

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Publication number Publication date
EP1550516A1 (de) 2005-07-06
ITTO20031051A1 (it) 2005-06-30
ATE544530T1 (de) 2012-02-15

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