EP2635860B1 - Méthode pour thermoréguler des objets - Google Patents

Méthode pour thermoréguler des objets Download PDF

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Publication number
EP2635860B1
EP2635860B1 EP11776420.9A EP11776420A EP2635860B1 EP 2635860 B1 EP2635860 B1 EP 2635860B1 EP 11776420 A EP11776420 A EP 11776420A EP 2635860 B1 EP2635860 B1 EP 2635860B1
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EP
European Patent Office
Prior art keywords
chamber
objects
gaseous fluid
workpieces
fluid
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.)
Active
Application number
EP11776420.9A
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German (de)
English (en)
Other versions
EP2635860A2 (fr
Inventor
Hermann-Josef David
Egon KÄSKE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecoclean GmbH
Original Assignee
Duerr Ecoclean GmbH
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Publication of EP2635860A2 publication Critical patent/EP2635860A2/fr
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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
    • F26B21/003—Supply-air or gas filters
    • 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
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • 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
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/003—Handling, e.g. loading or unloading arrangements for articles
    • 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
    • F26B25/005—Treatment of dryer exhaust gases
    • F26B25/007—Dust filtering; Exhaust dust filters
    • 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
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/066—Movable chambers, e.g. collapsible, demountable
    • 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 invention relates to a method for controlling the temperature of objects, in particular of workpieces, in which a plurality of objects are arranged in a chamber with a climatic zone, wherein the objects arranged in the chamber are flown in the climatic zone with filtered via a fine filter gaseous fluid.
  • cleaning inserts are used with liquid baths. In these baths, the workpieces are rinsed to rid them of spangling, lubricants, dust and chemicals. A good cleaning effect can be achieved in particular with hot cleaning fluids. In such cleaning fluids, the workpieces are heated. Then, steps in the production process that follow cleaning are often required to cool workpieces or assemblies. In modified processes, however, reverse processes can also be provided in which a cooling process is followed by a process-related (reheating) process.
  • reheating process-related
  • the document DE 60 2004 004391 T2 discloses a method according to the preamble of claim 1.
  • the object of the invention is to enable the efficient tempering of objects and workpieces in particular without appreciable contamination in an industrial manufacturing plant.
  • the invention is based on the idea that with the air flow, which is circulated in a clean room cabin, objects, in particular workpieces, can also be cooled.
  • the invention makes use of the fact that there is no risk of contamination of workpieces by an air flow in such a clean room when the supply air of such a clean room cabin is filtered in order to keep the particle size and particle concentration in the cabin below a predetermined threshold value.
  • One idea of the invention is, in particular, that by circulating purified gaseous fluid in a chamber, workpieces can be cooled down in an energy-saving manner if the workpieces in the chamber are kept for a long time (about half an hour, several hours or even days) with slowly flowing fluid. z. B. with air, are flown.
  • An idea of the invention is also to move workpieces for the efficient cooling of an industrial manufacturing plant in a clean room cabin with circulated air flow between production stations, which are spatially spaced.
  • the climate zone is designed as a cooling and / or heating zone, wherein the climate zone is arranged in a thermally insulated from the environment chamber, and wherein in the chamber, a fluid flow through a preferably designed as a fine filter filter, in particular by a HEPA filter.
  • a HEPA filter of the filter class H10 or higher according to the European standard EN 18 22-1: 1998 is preferably selected.
  • small particles with a size down to the range of 0.3 ⁇ m can be filtered off.
  • a HEPA filter thus makes it possible, in particular, to free air from fine dust, tobacco smoke, smoke, house dust, pollen, pollen, pores and odors.
  • a HEPA filter With a HEPA filter, total separation efficiency of 99.9% for particulate matter and suspended matter can be achieved, i. H. Of 10,000 dust particles in a corresponding HEPA filter, only three are not secreted.
  • a HEPA filter can be constructed with a close mesh of cellulose, synthetic fibers or glass fibers. Such fabrics are superimposed in a filter according to the invention with up to 1000 layers. As a result, a very large filter area is provided.
  • a particularly good filtering effect can be achieved by combining the HEPA filter with an activated charcoal filter. This activated carbon filter is conveniently upstream of the HEPA filter.
  • a pressure overpressure
  • the fluid flow flowing through the filter in the chamber is guided to at least one suction opening in the chamber, which is connected to the line system.
  • the fluid stream is preferably flowed in via the ceiling of the chamber. Due to the climatic zone, it conveniently runs to one on a side section the chamber formed in the region of the bottom suction opening. It is particularly advantageous if the flow of the fluid flow in the climate zone has an arc shape.
  • the chamber is connected to a conduit system for a supply of gaseous fluid to the chamber and for a discharge of gaseous fluid from the chamber and for circulating the gaseous fluid in a circuit formed via the conduit system.
  • a conduit system for a supply of gaseous fluid to the chamber and for a discharge of gaseous fluid from the chamber and for circulating the gaseous fluid in a circuit formed via the conduit system.
  • a heat exchanger for transferring heat into the fluid or out of the fluid is provided in such a largely closed circuit, in which preferably more than 90% of the fluid is circulated.
  • Fluid supplied to the circuit is preferably pumped through a filter and introduced into the circuit at elevated pressure relative to the environment.
  • a pumping device In the conduit system for the circulation of fluid, a pumping device is arranged.
  • This pumping device can, for. B. may be formed as Venturi nozzle, which is connected to the compressed air system of an industrial production plant. But as a pumping device is also an electric motor driven fan or compressor. With such a pumping device, the gaseous fluid is sucked through one or more suction openings in the chamber and then fed to the filter. It is advantageous if the pumping device is connected to a further feed channel for feeding gaseous fluid into the line system. Then, namely, in the chamber, an overpressure can be generated. This has the consequence that in the chamber from the outside environment no dust particles, dirt particles and liquid droplets can penetrate.
  • the chamber with the conduit system for the circulation of fluid in a transport cabinet in the form of a container is included.
  • the device can be moved easily in an industrial manufacturing facility, it is convenient to provide this transport cabinet or container with transport elements in the form of roles, so that it can easily move in the hall of a manufacturing plant.
  • a container designed as a transport cabinet preferably comprises transport elements in the form of a means or means for engaging a fork of a forklift. With this measure, not only a temperature of workpieces when moving between different production stations can be achieved, but it is also an undesirable contamination of workpieces during transport to stations in an industrial manufacturing plant avoided.
  • the chamber contains a holding device with a plurality of workpiece holders for receiving workpieces that are to be tempered, in particular cooled.
  • This holding device serves to hold the workpieces in the climatic zone.
  • this holding device may e.g. Have workpiece holders with round shelves on which corresponding workpieces can be stored.
  • the device for cooling may have a drive. It is advantageous if the workpiece holders for the staggered cascaded arrangement of the workpieces are formed in the fluid flow. This can be achieved that in the climatic zone with the fluid flow from a workpiece removed dirt particles are not carried to another workpiece and pollute it.
  • the chamber has a device for collecting flushing liquid introduced into the chamber. This device for collecting rinsing fluid introduced into the chamber may be connected to a system for the treatment of rinsing liquid.
  • the device for cooling objects and workpieces can, for. B. as a clean room or as a discharge lock in a final assembly can be used.
  • the device for cooling is also suitable as a buffer for workpieces in a manufacturing plant in order to set a constant supply of workpieces.
  • this can be combined in particular with a handling robot to a plant. It is advantageous to supply the device with articles or workpieces for cooling via a lock, so that no dirt particles are introduced into the cooling zone of the chamber.
  • the device or system for tempering workpieces can be tempered between two production steps in an industrial manufacturing plant.
  • a plurality of workpieces are arranged in the chamber with the climatic zone in a second production station spatially separate from the first production station.
  • the arranged in the chamber workpieces are there so flooded with filtered via a fine filter gaseous fluid that removed with the gaseous fluid from a workpiece debris from the gaseous Fluid should not be carried to another workpiece.
  • a device 10 for tempering workpieces 16 according to Fig. 1 has a chamber 12 according to the invention.
  • the chamber 12 is located in a container designed as a transport container 28.
  • the chamber 12 encloses a climatic zone 14 in the form of a cooling zone in which workpieces 16 can be cooled from a relative to ambient conditions increased temperature.
  • the device 10 includes a holding device for workpieces 16, which has a plurality of workpiece holders 18, 20, 22.
  • workpieces 16 on the workpiece holders 18, 20, 22 in the cooling zone 14 spatially offset in the manner of a cascade can be arranged.
  • the transport cabinet 28 has a sliding door 24. With the sliding door 24, the chamber 12 can be closed so that the ingress of Dirt particles in the cooling zone 14 is avoided.
  • the chamber 12 in the device 10 has on the side opposite to the sliding door 24, a closed wall 34.
  • the chamber 12 is received in a container 28.
  • the container 28 has handling elements 30, 32. At the handling elements 30, 32 of the container 28 can be taken with the fork of a forklift. This makes it possible to move the container 28 in an industrial manufacturing plant. However, to be moved in a manufacturing plant, it is also possible to store the container 28 on rollers.
  • the Fig. 2 shows the device with open sliding door and a handling robot 26.
  • the chamber 12 can be equipped with the handling robot 26 with workpieces 16, which must be cooled.
  • cooled workpieces 16 can be removed from the chamber 12.
  • the entry of dirt particles into the chamber 12 can be minimized by supplying the workpieces 16 into the chamber 12 through an air lock 59.
  • the Fig. 3 shows the device 10 as a section along the line III-III Fig. 1 , Also adjacent to the wall 34 side walls 36, 38 of the chamber 12 are closed.
  • the chamber 12 is formed with a bottom portion 40.
  • the bottom portion 40 is funnel-shaped.
  • the funnel-shaped bottom section 40 opens into a pipeline 42.
  • the funnel-shaped bottom section 40 acts as a device for collecting flushing liquid 75 introduced into the chamber 12.
  • the chamber 12 has a ceiling 44. In the ceiling 44 there are openings in the form of air channels 46. On the ceiling 44, a HEPA filter 48 (High Efficiency Particulate Air Filter) is arranged.
  • the HEPA filter 48 is a close-meshed ultra-fine filter. It is a filter of filter class H10 according to the European standard EN 1822-1: 1998.
  • the device 10 includes a fan 52.
  • the fan 52 is disposed in a conduit system 54 for circulating gaseous fluid in the form of air in the chamber 12.
  • the gaseous fluid can be circulated in particular in the manner of a circuit.
  • the fan 52 is connected at its pressure-side connection via a funnel-shaped line section 50 with the HEPA filter 48.
  • a heat exchanger 57 for the removal of heat, which has absorbed the gaseous fluid in the cooling zone 14, there is a heat exchanger 57 in the conduit system 54. By means of the heat exchanger 57, this heat can be dissipated to the environment of the device 10.
  • the HEPA filter 48 can be acted upon via a funnel element 50 by means of the fan 52 with blowing air.
  • the conduit system 54 is connected to an ambient air supply passage 55.
  • a controllable valve 64 is arranged in the supply channel 55.
  • the ambient air conducted in the line system 54 can be added to ambient air in a controlled manner. This makes it possible to set an overpressure by means of the fan 52 in the chamber 12. This causes the chamber 12 from the outside can penetrate no dust particles, liquid droplets and dirt particles.
  • suction openings 56 for gaseous fluid.
  • the suction openings 56 are connected to the line system 54.
  • an air flow 58 is formed with filtered air during operation of the fan 52.
  • the HEPA filter 48 filters dust, liquid or dirt particles from air entering the chamber 12 from the conduit system 54. The air flowing in through the channels 46 in the ceiling 44 is moved through the chamber 12 with an arcuate flow.
  • the air flows to the suction opening 56 and to openings 62 in the sliding door 24.
  • an overpressure is set. This overpressure ensures that the chamber 12 from the outside, no air can penetrate, which is acted upon by liquid droplets and dirt particles.
  • the arcuate flow of the air flowing through the chamber 12 allows the cooling of workpieces 16 which are arranged on the holder devices 18, 20 and 22.
  • the arrangement of the workpieces 16 in the chamber 12 in the manner of a cascade ensures that a workpiece 16 in the chamber 12 does not cover the air flow for another workpiece 16, so that each arranged in the chamber 12 workpiece can be flown with air for cooling.
  • the device 10 can also be achieved that the degree of contamination of workpieces 16 in the chamber 12 is improved by the corresponding to the flow 58 flowing air. Unlike conventional devices for cooling workpieces, so the degree of contamination is reduced during cooling of workpieces with gaseous fluid, i. in no way impaired.
  • the device 60 In order to remove dirt particles from the chamber 12 which are introduced into the chamber 12 via the workpieces 16, there is a device 60 for rinsing out the chamber with rinsing liquid 75.
  • the device 60 comprises a line system 66.
  • the line system 66 connects rinse nozzles 68,
  • the reservoir 70 is connected via a shut-off valve 71 with the pipe 42 to the funnel-shaped bottom portion 40 with the chamber 12.
  • the device 60 includes a system 65 for the treatment of rinsing liquid 75 with a rinsing pump 72 and a filter 74.
  • a system 65 for the treatment of rinsing liquid 75 with a rinsing pump 72 and a filter 74 For rinsing the chamber 12 with rinsing liquid 75, the rinsing pump 72 is put into operation. Then with the flushing liquid 75 flowing out of the flushing nozzles 68, dirt particles which accumulate on the closed walls 34, 36, 38, rinsed and carried over the funnel-shaped bottom portion 40 into the reservoir 70. During the circulation of the rinsing liquid 75, the dirt particles are removed from the rinsing liquid 75 by means of the filter 74.
  • the apparatus 10 can be used in particular for transporting workpieces 16 between two or more different production stations and / or as a buffer for workpieces 16 at a production station.
  • a device 10 for conditioning objects, in particular workpieces 16 after a cleaning process has a climate zone 14 designed as a cooling and / or heating zone, in which the articles 16 can be supplied with gaseous fluid.
  • the climate zone 14 is formed in a chamber 12, which is acted upon by a fluid flow 58, which flows into the chamber 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Claims (14)

  1. Procédé pour maintenir des objets, en particulier des pièces (16), à température contrôlée, dans lequel plusieurs objets (16) sont disposés dans une chambre (12) présentant une zone climatisée (14), les différents objets (16) disposés dans la chambre (12) étant balayés dans la zone climatisée (14) par un fluide gazeux filtré par un filtre fin (48),
    les différents objets (16) étant déplacés pendant leur maintien à température contrôlée depuis un premier poste de fabrication jusqu'à un deuxième poste de fabrication d'une installation industrielle de fabrication, après une étape de fabrication dans un premier poste de fabrication et avant une autre étape de fabrication dans un deuxième poste de fabrication séparé spatialement du premier poste de fabrication, caractérisé en ce que
    les différents objets (16) sont balayés par le fluide gazeux de telle sorte que les particules d'encrassement enlevées d'un objet (16) des différents objets (16) ne soient pas transportées par le fluide gazeux vers un autre objet (16) des différents objets (16).
  2. Procédé selon la revendication 1, caractérisé en ce que la chambre (12) dans laquelle sont disposés les objets (16) est déplacée pour déplacer les objets (16) du premier poste de fabrication au deuxième poste de fabrication pendant le maintien des objets à température contrôlée.
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que les différents objets (16) sont chauffés ou refroidis dans la zone climatisée (14).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le fluide gazeux est introduit sous la forme d'un écoulement de fluide (58) dans la chambre (12) à travers un filtre fin (48) de préférence configuré comme filtre à HEPA, par le plafond (44) de la chambre (12) et en ce que plusieurs logements de pièces (18, 20, 22) prévus pour disposer en cascade les objets (16) dans l'écoulement de fluide (58) sont prévus dans la chambre (12).
  5. Procédé selon la revendication 4, caractérisé en ce que l'écoulement de fluide (58) introduit par le plafond (44) s'étend dans la zone climatisée (14) en s'écoulant en arc de cercle vers une ouverture d'aspiration (56) formée dans une partie latérale de la chambre (12) située au niveau de son plancher (40).
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce qu'un dispositif (60) de rinçage de la chambre (12) par un liquide de rinçage (75) est prévu dans la chambre (12).
  7. Procédé selon la revendication 6, caractérisé en ce qu'un dispositif (40) de collecte de liquide de rinçage (75) introduit dans la chambre (12) est prévu et est raccordé à une installation (65) de préparation de liquide de rinçage (75) qui contient pour la préparation de liquide de rinçage (75) un filtre (74) qui filtre les particules d'encrassement présentes dans le liquide de rinçage (75).
  8. Procédé selon la revendication 7, caractérisé en ce que la chambre (12) et l'installation (65) de préparation de liquide de rinçage est prévue dans une armoire de transport (28) mobile, de préférence configurée comme conteneur, qui présente au moins un élément de transport (30, 32) qui déplace l'armoire de transport, en particulier un élément de transport qui présente la forme d'un rouleau et/ou la forme d'une poignée pour la fourche d'un élévateur à fourche.
  9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce qu'est prévu un système de conduits (54) par lequel le fluide gazeux peut être apporté à la chambre (12), par lequel le fluide gazeux peut être évacué hors de la chambre (12) et qui permet une recirculation du fluide gazeux dans un circuit formé par le système de conduits (54).
  10. Procédé selon la revendication 9, caractérisé en ce qu'un dispositif de pompage qui aspire le fluide gazeux dans la chambre (12) par la ou les ouvertures d'aspiration (56) et l'amène au filtre (48) est disposé dans le système de conduits (54) et est configuré en particulier comme ventilateur (52) ou comme tuyère Venturi.
  11. Procédé selon la revendication 10, caractérisé en ce que le dispositif de pompage (52) est raccordé à un canal d'amenée (55) qui permet d'injecter du fluide gazeux dans le système de conduits (54) pour créer une surpression dans la chambre (12).
  12. Procédé selon l'une des revendications 9 à 11, caractérisé en ce que la chambre (12) est dotée du système de conduits (54) qui fait circuler du fluide dans une armoire de transport (28) et/ou en ce que le système de conduits (54) présente un échangeur de chaleur (57) qui permet l'amenée et l'évacuation de la chaleur à échanger avec le fluide gazeux dans la zone climatisée (14).
  13. Procédé selon l'une des revendications 1 à 12, caractérisé en ce que la chambre (12) présente une ou plusieurs ouvertures (62) permettant de libérer le fluide gazeux vers l'environnement et/ou en ce que la chambre (12) est chargée et déchargée par un ensemble de manipulation (26), en particulier un ensemble de manipulation configuré comme robot industriel en objets et/ou en ce que les objets (16) sont apportés dans la chambre (12) par un sas (59) raccordé à la chambre (12).
  14. Procédé selon l'une des revendications 1 à 13, caractérisé en ce que les objets (16) sont conservés temporairement dans la chambre (12) dans une installation de fabrication.
EP11776420.9A 2010-11-05 2011-10-26 Méthode pour thermoréguler des objets Active EP2635860B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010043522A DE102010043522A1 (de) 2010-11-05 2010-11-05 Vorrichtung und Anlage zum Temperieren von Gegenständen
PCT/EP2011/068780 WO2012059384A2 (fr) 2010-11-05 2011-10-26 Dispositif et installation permettant de thermoréguler des objets

Publications (2)

Publication Number Publication Date
EP2635860A2 EP2635860A2 (fr) 2013-09-11
EP2635860B1 true EP2635860B1 (fr) 2015-07-15

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EP11776420.9A Active EP2635860B1 (fr) 2010-11-05 2011-10-26 Méthode pour thermoréguler des objets

Country Status (5)

Country Link
US (1) US20130239432A1 (fr)
EP (1) EP2635860B1 (fr)
CN (1) CN103201577B (fr)
DE (1) DE102010043522A1 (fr)
WO (1) WO2012059384A2 (fr)

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US7108000B2 (en) * 2003-06-25 2006-09-19 Steris Inc. Washer pressure equalization system
US7765868B2 (en) * 2003-09-23 2010-08-03 Evotec Technologies Gmbh Climate chamber for microscopes
EP1805467B1 (fr) * 2004-09-20 2013-07-24 Martin Allen Mcfarland Systemes et procedes de sechage d'une pluralite d'articles divers
DE102004049520A1 (de) * 2004-10-11 2006-04-13 Alfred Reinicke Verfahren und Anlage zur Belüftung von Reinräumen
DE102005003093B4 (de) * 2005-01-22 2018-12-13 Ecoclean Gmbh Reinigungsanlage
DE102006039715A1 (de) * 2006-08-24 2008-02-28 Dürr Ecoclean GmbH Reinigungsvorrichtung mit einer Flutkammer
DE102008026158B3 (de) * 2008-05-30 2010-02-04 Bernhard Harter Klimatisierungssystem für kleine Behältnisse
US8167151B2 (en) * 2008-06-24 2012-05-01 Metal Fabricating Corporation Forkable base stand

Also Published As

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EP2635860A2 (fr) 2013-09-11
DE102010043522A1 (de) 2012-05-10
CN103201577B (zh) 2016-08-17
US20130239432A1 (en) 2013-09-19
WO2012059384A3 (fr) 2012-10-18
CN103201577A (zh) 2013-07-10
WO2012059384A2 (fr) 2012-05-10

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