WO2009092518A1 - Dispositif pour sécher des objets, en particulier des carrosseries peintes de véhicules - Google Patents

Dispositif pour sécher des objets, en particulier des carrosseries peintes de véhicules Download PDF

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Publication number
WO2009092518A1
WO2009092518A1 PCT/EP2009/000100 EP2009000100W WO2009092518A1 WO 2009092518 A1 WO2009092518 A1 WO 2009092518A1 EP 2009000100 W EP2009000100 W EP 2009000100W WO 2009092518 A1 WO2009092518 A1 WO 2009092518A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
gas exchange
atmosphere
lock area
drying tunnel
Prior art date
Application number
PCT/EP2009/000100
Other languages
German (de)
English (en)
Inventor
Werner Swoboda
Original Assignee
Eisenmann Anlagenbau Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eisenmann Anlagenbau Gmbh & Co. Kg filed Critical Eisenmann Anlagenbau Gmbh & Co. Kg
Priority to EP09704057.0A priority Critical patent/EP2232182B1/fr
Publication of WO2009092518A1 publication Critical patent/WO2009092518A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/14—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by trays or racks or receptacles, which may be connected to endless chains or belts
    • 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
    • F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/12—Vehicle bodies, e.g. after being painted

Definitions

  • the invention relates to a device for drying objects, in particular of painted vehicle bodies, with
  • an inlet sluice area which is connected upstream of the drying tunnel, comprising at least one gas exchange chamber and separating the inert gas atmosphere prevailing inside the drying tunnel from the outer normal atmosphere;
  • an outlet lock area downstream of the drying tunnel comprising at least one gas exchange chamber and separating the inert gas atmosphere within the drying tunnel from the outer normal atmosphere;
  • Gas exchange chambers of the inlet lock area and the outlet lock area is connectable.
  • drying is meant here all processes by which a coating material from the state the application is transferred to the final state, be it by removal of solvents, melting, crosslinking o. ⁇ ..
  • the inlet-lock area essentially comprises three chambers: a first, which is filled with normal atmosphere and to which the freshly coated objects are supplied by the coating station.
  • a second chamber is partially below the first chamber, is connected to the latter via a large-area opening through which the coated objects can be lowered, and contains an inert gas atmosphere whose density is greater than that of the outer normal atmosphere. is photre.
  • a third lock chamber is in turn above the second lock chamber approximately at the level of the first lock chamber and adjacent to this and is also connected to the second lock chamber via a large-area opening. It also contains an inert gas atmosphere and communicates with the inert gas atmosphere within the drying tunnel. The coated objects are guided through these lock chambers in the order listed.
  • a similar, but from the now dried objects in the reverse direction traversed outlet lock area is located at the end of the drying tunnel.
  • Inert gases may in particular be nitrogen, CO ", noble gases or other gases in which the content of the
  • Dry adversely affecting noxious gas component is below a predetermined threshold.
  • Oxygen is a noxious gas component, and its concentration should be below 1% by volume.
  • the object of the present invention is to further develop a device of the type mentioned at the outset so that the inert gas consumption is further reduced with the least possible outlay on equipment.
  • the gas exchange chambers of the inlet lock area and the outlet lock region optionally either with a pump, which can suck the atmosphere present in the gas exchange chambers and lead into the outside atmosphere or can be connected via a controllable valve directly to the outside atmosphere.
  • both gas exchange chambers of both lock areas can be so well freed of normal atmosphere with the aid of a vacuum pump that the atmosphere prevailing there after single inflow of the inert gas receives the quality prescribed by the manufacturers of the paints.
  • a multiple rinsing is not required; the time in which the atmosphere exchange can take place is considerably shortened compared with the prior art.
  • a reservoir for inert gas is expediently provided, which can be connected to the gas exchange chambers of both the inlet lock area and the outlet lock area.
  • This reservoir can be used for the first time inerting both the gas exchange chambers of the two lock areas and the interior of the drying tunnel.
  • embodiment of the invention in which the gas exchange chambers of the inlet lock area and the outlet lock area can be connected to each other via a connection path in which at least one pump is located so that inert gas can be pumped from one gas exchange chamber into the other gas exchange chamber , In this way, a lot of inert gas can be saved, since the inert gas, which are removed from the gas exchange chamber must, in order to allow normal atmosphere there, can be temporarily stored in the other gas exchange chamber.
  • the inert gas can flow from one gas exchange chamber into the other gas exchange chamber until a same pressure is established in both gas exchange chambers without a pump.
  • the pumping action therefore only needs to start after a pressure equalization has taken place.
  • the inlet sluice area and the outlet sluice area can be operated independently of each other, and yet inert gas can be displaced in its entirety between the gas exchange chambers.
  • a harmful gas sensor is provided in the line system of the device, changes in the concentration of harmful gas can be monitored.
  • a single pollutant gas sensor is sufficient to determine information about the pollutant gas concentration in different subregions of the device.
  • the noxious gas sensor also makes it possible to supply gas quantities which no longer meet the strict requirements for the operation of the device, but which still contain significantly less noxious gas than the ambient atmosphere. - S -
  • Figure 1 shows a vertical section through a section of a paint shop for vehicle bodies with schematically illustrated peripheral devices
  • FIG. 2 shows schematically the functional sequence during the passage of a vehicle body through the system of FIG. 1.
  • FIG. 1 a section of a painting system for vehicle bodies 10 is shown in vertical section, which carries the reference numeral 1 in total.
  • This section comprises an inlet lock area 3 for a drying tunnel 4, the drying tunnel 4 itself, which is only partially shown, and an outlet lock area 5.
  • the vehicle bodies 10, in the direction of the arrow 6 in FIG not shown paint booth coming through the inlet lock area 3, the drying tunnel 4 and the outlet lock area 5 moves, which is carried out cyclically, at least in the lock areas 3, 5.
  • conveyor systems 7, 8, 9 which are not explained in greater detail are used, which are known to the person skilled in the art.
  • the drying tunnel 4 is also built according to the state of the art and contains suitable heating and irradiation facilities with which the applied paint can be dried or hardened.
  • the entrance lock area 3 will be described.
  • This is designed as a vacuum lock and comprises a gas exchange chamber 16, which can be closed at its two opposite end faces in each case by a motor-driven lift gate 24 and 25 respectively.
  • the top wall of the gas exchange chamber 16 of the vacuum lock 3 is pierced by an exchange line 17 and by an outlet line 18.
  • the outlet lock area 5 is designed in the same way, ie also as a vacuum lock.
  • This vacuum lock also comprises a gas exchange space 31, and two motor-operated lift gates 32 and 33 arranged on the end side of the gas exchange chamber. Its cover wall is pierced in the same way as in the first vacuum lock 3 by an exchange line 30 and an outlet line 29. In the latter is again a motor-operated valve 28th
  • the two outlet lines 18 and 29 lead via a chimney to the outside atmosphere.
  • the two exchange lines 17, 30 are each connected via a motor-operated valve 26 and 27 with a reservoir 34 for fresh, high purity inert gas.
  • the two valves 26 and 27 can be bypassed via two parallel lying lines 35 and 36, in which in each case two motor-operated valves 37, 38 and 39, 40 are located.
  • the two lines 35 and 36 are connected at points which lie between the two lying in the lines valves 37, 38 and 39, 40, respectively, by another line 41, in which a pump 42 is located.
  • the line 41 leads via the line 36 in Figure 1 upwards to a motor-operated valve 43 and from there optionally via a chimney to the outside atmosphere.
  • This initial inerting can be carried out with the aid of one of the two vacuum locks 3, 5 in the following manner, with the input vacuum lock 3 being selected as an example.
  • the gate 25 between the gas exchange chamber 16 and the drying tunnel 4 is opened, so that the atmospheres therein can mix.
  • the gate 25 is closed and the gas exchange chamber 16 in turn via the above-described way by means of the pump
  • vehicle bodies 10 through the installation 1 after completed initial inerting can be carried out in a manner which will be described below with additional reference to FIG.
  • FIG. 2 In this figure 2 are spaces with the normal atmosphere (Ambient air) are filled, with a cross hatch and spaces filled with inert gas atmosphere, characterized by simple hatching. Rooms that are evacuated do not have hatching in FIG.
  • the bodies are represented by rectangles.
  • inert gas oscillates between inlet vacuum lock 3 and outlet vacuum lock 5.
  • a vehicle body with dried paint can be moved out of the continuous tunnel 4 with the lift gate 32 open into the outlet vacuum lock 5.
  • the inlet vacuum lock 3 evacuated by means of the pump 42 in the manner already described above and then according to part D in the manner already explained from the outlet vacuum lock 5 and possibly additionally from the reservoir 34 with Inert gas filled. Then, the lifting gate 25 is opened and the vehicle body 10 can enter the drying tunnel 4 (partial image E). The lifting gate 25 is closed again. The outlet vacuum lock 5 is simultaneously filled with normal atmosphere.
  • the vehicle body 10 in the usual way with electromagnetic radiation and optionally applied heat (partial image F), whereby the coating in the above sense "dries".
  • partial image F partial image F
  • the lifting gate 33 is opened, the dried vehicle body 10 is extended and the lifting gate 33 is closed again.
  • the gas exchange chamber 31 of the outlet vacuum lock 5 is still filled with normal atmosphere; but it contains no vehicle body 10.
  • the gates 32 and 33 are closed.
  • valves 37 and 38 are now opened, so that inert gas from the gas exchange chamber 16 of the inlet-vacuum lock
  • valve 39 is closed; the valves 37 and 40 are opened.
  • the pump 42 can suck the remaining, already reduced in pressure inert gas atmosphere from the gas exchange chamber 16 of the inlet vacuum lock 3 and via the line 17, the line 35 and the open valve 37, the line 41, the open valve 40th , the wires Pump 36 and 30 in the gas exchange chamber 31 of the outlet-vacuum lock 5 over. If necessary, the valve 27 is opened so far that a small amount of high-purity inert gas 34 is metered from the reservoir 34, which is sufficient to keep the oxygen content in the atmosphere of the gas exchange chamber 31 of the outlet-vacuum lock 5 below the permissible maximum value ,
  • the gas exchange chamber 16 is evacuated and a new vehicle body to be dried is placed in front of the inlet vacuum lock 3.
  • the gas exchange chamber 16 can be filled with normal atmosphere via the line 18 and the lifting gate 24 can be opened so that the inlet vacuum lock 3 is ready to receive another vehicle body 10.
  • the lifting gate 32 can be opened, so that subsequently the foremost vehicle body 10 located in the drying tunnel 4 can be retracted into the gas exchange space 31 of the outlet vacuum lock 5.
  • Vacuum lock 5 forcibly coupled by the fact that the inert gas was replaced directly between them.
  • the operation of the two locks can be made independent of each other by placing the inert gas in a large buffer (eg a balloon) under atmospheric pressure Pressure caching, with both gas exchange chambers
  • the inert gas withdrawn from a gas exchange chamber can, for the same purpose, be compressed or pushed back into the reservoir 34 in a rigid intermediate reservoir 34 having smaller dimensions.
  • an oxygen sensor 46 can be connected in the intake path of the pump 42 (or its outlet line), which provides an output signal corresponding to the oxygen content in the intake gas.
  • the oxygen sensor 46 may, for. Example, be a sensor that responds to the infrared absorption bands of oxygen molecules. Alternatively, it may be a solid oxygen sensor.
  • a purge gas container 48 is connected via a further motor-operated valve 47. This is further connected via a further motor-operated valve 49 with the exchange line 17 and thus the gas exchange chamber 16.
  • the oxygen sensor 46 determines that the oxygen content in the aspirated gas mixture is greater than the predetermined limit value, it causes a controller 50 of the system to open the valve 26 or 27 so much that in the just used for supplying inert gas the exchange lines 17, 30 again falls below the limit for oxygen.
  • the motor-operated valve 47 so that the oxygen-depleted gas still useful for rinsing purposes is pressed into the rinsing gas container 48.
  • the purge gas can then be supplied from there by opening the valve 49 of the exchange line 17 when the
  • the purge gas container 48 via the valve 49 corresponding further valve with the Exchange line 30 are connected.
  • the controller 50 determines that the oxygen concentration in the gas sucked by the pump 42 is so high in accordance with the output signal of the oxygen sensor 46 that this gas is no longer usable for flushing purposes, the controller 50 opens the valve 43, so that this gas leaves the plant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

Ce dispositif (1) pour sécher des objets, en particulier des carrosseries peintes de véhicules (10), comprend d'une manière connue un tunnel de séchage (4) dont l'espace intérieur est rempli d'une atmosphère de gaz inerte et dans lequel les objets peuvent être soumis à un rayonnement électromagnétique et/ou à de la chaleur. Une zone de sas d'admission (3) précède le tunnel de séchage (4), et une zone de sas d'évacuation (5) fait suite au tunnel de séchage (4). Les zones de sas (3, 5) présentent chacune une chambre d'échange de gaz (16, 31) qui peut être sélectivement reliée, soit à une pompe (42) qui peut aspirer l'atmosphère présente dans les chambres d'échange de gaz (16, 31) et la refouler dans l'atmosphère extérieure, soit directement à l'atmosphère extérieure via une soupape commandable (19, 28). Ce dispositif permet d'effectuer très rapidement le renouvellement d'atmosphère nécessaire dans les deux zones de sas (3, 5).
PCT/EP2009/000100 2008-01-22 2009-01-10 Dispositif pour sécher des objets, en particulier des carrosseries peintes de véhicules WO2009092518A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09704057.0A EP2232182B1 (fr) 2008-01-22 2009-01-10 Dispositif pour sécher des objets, en particulier des carrosseries peintes de véhicules

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810005582 DE102008005582B3 (de) 2008-01-22 2008-01-22 Vorrichtung zum Trocknen von Gegenständen, insbesondere von lackierten Fahrzeugkarosserien
DE102008005582.4 2008-01-22

Publications (1)

Publication Number Publication Date
WO2009092518A1 true WO2009092518A1 (fr) 2009-07-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/000100 WO2009092518A1 (fr) 2008-01-22 2009-01-10 Dispositif pour sécher des objets, en particulier des carrosseries peintes de véhicules

Country Status (3)

Country Link
EP (1) EP2232182B1 (fr)
DE (1) DE102008005582B3 (fr)
WO (1) WO2009092518A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20130064A1 (it) * 2013-05-13 2014-11-14 Steelco Spa Macchina a tunnel per il lavaggio di oggetti
CN105091555A (zh) * 2015-08-18 2015-11-25 合肥国轩高科动力能源股份公司 一种锂电池涂布烘箱的风量调节方法
DE102021112211A1 (de) 2021-05-11 2022-11-17 Ulf Reinhardt Trocknungsvorrichtung zur Trocknung von Reinigungsfluid aufweisenden Behältern, Steuerungsvorrichtung und Verfahren

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010002179A1 (de) 2010-02-22 2011-08-25 Dürr Systems GmbH, 74321 Schleuse zum Überführen eines Werkstücks zwischen einem Außenraum und einem Innenraum eines Werkstückbehandlungsbereichs
DE102015214706A1 (de) 2015-07-31 2017-02-02 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
DE102015017278B3 (de) 2015-07-31 2019-04-04 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
DE102015214711A1 (de) 2015-07-31 2017-02-02 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
DE102015017279B3 (de) 2015-07-31 2019-04-04 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
DE102015017280B3 (de) 2015-07-31 2019-04-04 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
DE102019202736A1 (de) * 2019-02-28 2020-09-03 Audi Ag Verfahren und Anlage zum Trocknen von Lack

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3402505A1 (de) * 1983-01-25 1984-08-09 Citizen Watch Co. Ltd., Tanashi, Tokyo Vorrichtung und verfahren zum aushaerten von unter lichteinwirkung aushaertenden kunstharzklebern
US5316579A (en) * 1988-12-27 1994-05-31 Symetrix Corporation Apparatus for forming a thin film with a mist forming means
DE9218881U1 (de) * 1991-05-08 1995-12-07 Tom Ao Zakrytogo N Proizv Vorrichtung zur Trocknung eines polymeren Schutzüberzugs
DE19804386A1 (de) * 1998-02-04 1999-09-09 Ttp Ingenieurbuero Verfahren und Vorrichtung zur Trocknung oder Wärmebehandlung von Produkten, insbesondere mit Hilfe von Mikrowellenstrahlung, und damit hergestellte Bananenchips und Bananenpulver
DE102004023537A1 (de) * 2003-07-24 2005-03-03 EISENMANN Maschinenbau KG (Komplementär: Eisenmann-Stiftung) Vorrichtung zur Aushärtung einer aus einem Material, das unter elektromagnetischer Strahlung aushärtet, insbesondere aus einem UV-Lack oder aus einem thermisch aushärtenden Lack, bestehenden Beschichtung eines Gegenstandes
WO2008098662A1 (fr) * 2007-02-15 2008-08-21 Eisenmann Anlagenbau Gmbh & Co. Kg Dispositif destiné au séchage d'objets, en particulier de carrosseries de véhicules mises en peinture

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3402505A1 (de) * 1983-01-25 1984-08-09 Citizen Watch Co. Ltd., Tanashi, Tokyo Vorrichtung und verfahren zum aushaerten von unter lichteinwirkung aushaertenden kunstharzklebern
US5316579A (en) * 1988-12-27 1994-05-31 Symetrix Corporation Apparatus for forming a thin film with a mist forming means
DE9218881U1 (de) * 1991-05-08 1995-12-07 Tom Ao Zakrytogo N Proizv Vorrichtung zur Trocknung eines polymeren Schutzüberzugs
DE19804386A1 (de) * 1998-02-04 1999-09-09 Ttp Ingenieurbuero Verfahren und Vorrichtung zur Trocknung oder Wärmebehandlung von Produkten, insbesondere mit Hilfe von Mikrowellenstrahlung, und damit hergestellte Bananenchips und Bananenpulver
DE102004023537A1 (de) * 2003-07-24 2005-03-03 EISENMANN Maschinenbau KG (Komplementär: Eisenmann-Stiftung) Vorrichtung zur Aushärtung einer aus einem Material, das unter elektromagnetischer Strahlung aushärtet, insbesondere aus einem UV-Lack oder aus einem thermisch aushärtenden Lack, bestehenden Beschichtung eines Gegenstandes
WO2008098662A1 (fr) * 2007-02-15 2008-08-21 Eisenmann Anlagenbau Gmbh & Co. Kg Dispositif destiné au séchage d'objets, en particulier de carrosseries de véhicules mises en peinture

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20130064A1 (it) * 2013-05-13 2014-11-14 Steelco Spa Macchina a tunnel per il lavaggio di oggetti
WO2014184731A1 (fr) 2013-05-13 2014-11-20 Steelco Spa Machine de type tunnel pour le lavage d'objets
US9931676B2 (en) 2013-05-13 2018-04-03 Steelco Spa Tunnel-type machine for washing objects
CN105091555A (zh) * 2015-08-18 2015-11-25 合肥国轩高科动力能源股份公司 一种锂电池涂布烘箱的风量调节方法
DE102021112211A1 (de) 2021-05-11 2022-11-17 Ulf Reinhardt Trocknungsvorrichtung zur Trocknung von Reinigungsfluid aufweisenden Behältern, Steuerungsvorrichtung und Verfahren
DE102021112211B4 (de) 2021-05-11 2022-12-22 Ulf Reinhardt Trocknungsvorrichtung zur Trocknung von Reinigungsfluid aufweisenden Behältern, Steuerungsvorrichtung und Verfahren

Also Published As

Publication number Publication date
DE102008005582B3 (de) 2009-08-20
EP2232182B1 (fr) 2016-05-25
EP2232182A1 (fr) 2010-09-29

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