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EP2958685A1 - Installation pour le traitement de pièces ouvrées - Google Patents

Installation pour le traitement de pièces ouvrées

Info

Publication number
EP2958685A1
EP2958685A1 EP14706820.9A EP14706820A EP2958685A1 EP 2958685 A1 EP2958685 A1 EP 2958685A1 EP 14706820 A EP14706820 A EP 14706820A EP 2958685 A1 EP2958685 A1 EP 2958685A1
Authority
EP
European Patent Office
Prior art keywords
container
process fluid
process liquid
fluid
flood chamber
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.)
Granted
Application number
EP14706820.9A
Other languages
German (de)
English (en)
Other versions
EP2958685B1 (fr
Inventor
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
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 Duerr Ecoclean GmbH filed Critical Duerr Ecoclean GmbH
Publication of EP2958685A1 publication Critical patent/EP2958685A1/fr
Application granted granted Critical
Publication of EP2958685B1 publication Critical patent/EP2958685B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/14—Removing waste, e.g. labels, from cleaning liquid
    • 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

Definitions

  • the invention relates to a system for the treatment of workpieces with process fluid in a flood chamber, which has a container for the provision of process fluid.
  • Dirt particles, in particular Spangut, dust, cast sand or liquid droplets can the function of industrially manufactured products such.
  • B. affect injectors for internal combustion engines.
  • the cleanliness of workpieces in industrial production processes is therefore of great importance.
  • systems for the treatment of workpieces are used, in which the workpieces are cleaned and deburred.
  • the workpieces are subjected to a process liquid, for.
  • water which is preferably provided with cleaning additives, or with liquid containing hydrocarbons.
  • a plant of the type mentioned is known from WO 2008/022701 A1.
  • This plant has a flood chamber, in which a workpiece to be cleaned can be arranged, and contains a flooding device, which allows flooding of the flood chamber with a process liquid designed as a liquid cleaning agent.
  • the flooding device comprises a fan with which a negative pressure can be generated in the flooding device. With the negative pressure generated, the cleaning agent is sucked from serving as a detergent reservoir reservoir in the flood chamber.
  • the object of the invention is to provide a plant for the treatment of workpieces, which makes it possible to operate a flood chamber for the cleaning of workpieces with short cycle times and to provide a method for the treatment of workpieces in a flood chamber, in a short time very many workpieces can be treated.
  • This object is achieved by a system having the features of claim 1 and a method having the features of claim 14.
  • Advantageous embodiments of the invention are specified in the subclaims.
  • a process liquid delivery line is provided, which connects the container for the supply of process liquid with the flood chamber.
  • One idea of the invention is, in particular, to provide for this process fluid delivery line in the system on the container side an inlet region in which a process liquid fluid jet passing through the process liquid delivery line in the axial direction can be produced.
  • This makes it possible to induce a Venturi effect in the inlet area, which promotes the inflow of process fluid into the flood chamber.
  • the inlet region of the process liquid delivery line advantageously has an inlet opening, which preferably faces a bottom of the container and through which the process liquid can pass from the container via a preferably funnel-shaped tapered section of the inlet region into the process liquid delivery line.
  • the suction effect created by the venturi effect in the inlet region for the process liquid in the container can be enhanced.
  • One finding of the invention is, in particular, that it is possible to maximize the amount of process liquid that can be moved out of the container per unit of time through the process fluid delivery line into the flood chamber by generating the process liquid fluid jet in the inlet region by means of a nozzle is arranged in a projecting into the container line branch of a line for process liquid.
  • this nozzle is positioned in the funnel-shaped tapered portion of the inlet region of the process fluid delivery line.
  • the section of the line branch receiving the nozzle can protrude into its inlet area, in particular through the inlet opening of the process fluid delivery line.
  • another embodiment of the system according to the invention can also have a nozzle for generating a process fluid jet, which is located outside the process fluid delivery line immediately before its inlet opening.
  • the plant preferably contains a device for generating a negative pressure in the flood chamber in order to fill the flood chamber with process liquid from the vessel via the process liquid delivery line.
  • the flood chamber has an opening for the entry of process fluid and an opening for the escape of process fluid.
  • the opening of the flood chamber for the entry of process fluid and the opening for the escape of process fluid can be identical in particular.
  • the system may also include a container for receiving contaminated process fluid to which the process fluid from the flood chamber is directed through the process fluid exit port.
  • the container for providing process fluid has an overflow through which process fluid can reach the container for receiving process fluid.
  • the container for receiving soiled process fluid and the container for providing process fluid may also be identical.
  • the means for generating a process liquid fluid jet passing through the container-side inlet region of the process liquid delivery line in the axial direction comprises a pump, removing the process liquid from the container for the process fluid Picking up soiled process fluid by a cleaning device for the removal of dirt particles and a line with an outlet opening for generating the process fluid jet fluid moves.
  • bypass line communicating with the cleaning device for supplying process fluid cleaned in the cleaning device into the container for providing process fluid
  • continuous cleaning of process fluid in the system is made possible.
  • a bypass line communicating with the cleaning device for supplying process fluid purified in the cleaning device into the flood chamber may also be provided for this purpose.
  • the workpiece is arranged in the flood chamber in a first step.
  • a negative pressure is then generated in the flood chamber.
  • the process liquid is then sucked from a container for the provision of process fluid through a process fluid delivery line with a container-side inlet region, wherein in the container-side inlet region an additional process liquid fluid jet is generated, which introduces the process liquid into the process liquid. Delivery line moving hydrostatic pressure gradient generated.
  • the additional process liquid fluid jet is generated with polluted process liquid conducted by a cleaning device.
  • FIG. 1 shows a first system for the treatment of workpieces with process fluid in a flood chamber.
  • Fig. 2 shows a second system for the treatment of workpieces with a
  • the plant 10 in Fig. 1 has a flood chamber 12, in which one or more workpieces 14 can be arranged to treat them with a process liquid, in particular to clean.
  • the plant 10 has a process liquid supply line 16 with a controllable flood flap 17, which opens into the flood chamber 12 and which projects into a container 18 which is filled with the process liquid.
  • the process fluid delivery line 16 has an inlet region 20 with a funnel-shaped widened inlet opening 22, which is immersed in the process liquid 24 in the container 18.
  • the flood chamber 12 has an opening 26 for the supply of process liquid from the container 18.
  • the flood chamber 12 can be flooded with process liquid from the container 18 through the opening 26.
  • the flood chamber 12 also has an opening 28 with a controllable flood flap 29, through which the process liquid can be introduced into a container 30.
  • process liquid can also be supplied from the container 18 through an overflow 32 into the container 30.
  • the container 30 is used for receiving soiled process liquid 25 and has a sump portion 34 in which dirt particles z. B. in the form of solids or chips from the process liquid can settle.
  • a scraper conveyor conveyor system for discharging the dirt particles from the sump portion 34, there is in the system 10 a preferably designed as a scraper conveyor conveyor system (not shown).
  • the process liquid can be returned to the container 18 with a feed pump 36 through a feed line 38, which contains a cleaning device 40 with a self-cleaning filter system.
  • the delivery line 38 comprises a line branch 42 with a nozzle 44.
  • the line branch 42 protrudes into the container 18 and serves for generating a container-side inlet region 20 coaxially penetrating process liquid fluid jet 46, which exits from the nozzle 44.
  • the outlet opening of the nozzle 44 is arranged in a tapering section of the inlet region 20 of the process liquid conveying line 16.
  • the section of the line branch 42 receiving the nozzle 44 protrudes through the inlet opening 22 into the process fluid delivery line 16.
  • the delivery line 38 has a line branch 48 and a line branch 50, which are connected in parallel to the line branch 42.
  • the line branch 48 contains a throttle valve 52 and a shut-off valve 54. It acts as a bypass line through which the process fluid in the system 10 can be circulated by means of the feed pump 36 without the process fluid being guided through the flood chamber 12 for this purpose.
  • the line branch 50 is used for the application of arranged in the flood chamber 12 cleaning nozzles 55 with the process liquid.
  • the device 56 to generate a negative pressure in the flood chamber 12.
  • the device 56 has a fan 58, with a suction line 60, in which a controllable valve 62 is arranged, is connected to the flood chamber 12.
  • the extracted by means of the blower 58 from the flood chamber 12 gaseous fluid is released via a steam condenser 66 to the environment, which is cooled by a further fan 64.
  • Via a pressure line 68 and a shut-off valve 70 the fluid chamber 12 can be relieved of an overpressure or a negative pressure.
  • the workpiece 14 in the flood chamber 12 In order to treat a workpiece 14 with process fluid in the system 10, z. B. arranged in a first step, the workpiece 14 in the flood chamber 12. In a second step following the first step, the flood chamber 12 is then flooded with process fluid, which is supplied to the flood chamber 12 from the container 18 and the delivery line 38. In this case, by means of the blower 58 in the device 56 to the fluid chamber 12, a negative pressure is applied, wherein the flood flap 17 of the process liquid supply line 16 is opened. In this measure, the process fluid is sucked out of the container 18 into the flood chamber 12 through the process fluid delivery line 16.
  • the flood flap 17 in the process liquid delivery line 16 is closed and the flood flap 29 of the flood chamber 12 is opened.
  • the flood cam 12 is simultaneously injected via the pressure line 69 compressed air to press the process fluid 24 through the opening 28 in the container 30.
  • the flood chamber 12 can then be removed from a correspondingly treated workpiece 14.
  • the system 10 For establishing a pressure equalization between the flood chamber 12 and the container 30, the system 10 includes a pressure compensation line 74 with a shut-off valve 76 which connects the container 30 with the flood chamber 12.
  • a heating device 78 in the system 10.
  • the pump 36 in the system 10 preferably has a pumping capacity of 30 kW and thereby enables the pump side to provide a pump pressure P with P «9bar at a delivery volume of 90m 3 / h. Due to the line branch acting as a bypass line 48, the feed pump 36 can be operated with a constant pump power when the shut-off valve 54 is opened.
  • the system 10 also includes a control device (not shown) with which the feed pump 36 and the valves and flaps provided therein can be controlled, and which for monitoring the process liquid water levels in the system with an overfill protection arranged in the container 30 Level sensor 80, a working level level sensor 82, a dry level sensor 84, and a level sensor 86 disposed in the container 18 for monitoring the process fluid operating level in the container 18.
  • a control device not shown
  • Level sensor 80, a working level level sensor 82, a dry level sensor 84, and a level sensor 86 disposed in the container 18 for monitoring the process fluid operating level in the container 18.
  • the system 10 may be formed in a modified embodiment without the line branches 48 and 50. In the- In this case, it is advantageous if an additional throttle valve and a shut-off valve are integrated in the line branch 42.
  • the plant 100 shown in FIG. 2 unlike the plant 10 in Fig. 1, only a container 1 18 for receiving process liquid, which is the flood chamber 1 12 is supplied. Assemblies of the system 100, which correspond to the assemblies described above Appendix 10, are identified in Fig. 2 with respect to FIG. 1 increased by the number 100 numbers as reference numerals.
  • the flood chamber 1 12 has an opening 128. Through this opening 128 of the flood chamber 1 12 can be fed through a line 1 16 process fluid from the container 1 18. Conversely, it is possible to remove the process liquid after treating a workpiece 1 14 in the flood chamber 1 12 through the line 1 16 in the container 1 18. In the line 1 16 there is a controllable flood flap 129, which allows shutting off and releasing the flood chamber 1 12 to the container 1 18.
  • the line 1 16 is operated in the system 100 on the one hand as a process liquid delivery line and the other as a line through which the container 1 18 soiled process fluid from the flood chamber 1 12 after treating a workpiece 1 14 is supplied. Also, the conduit 1 16 has an inlet region 120 with a funnel-shaped widened inlet opening 122, which is immersed in the process liquid 124 in the container 1 18.
  • the container 1 18 has a sump portion 134 in which dirt particles can settle out of the process liquid. From the sump portion 134 of the container 1 18, the process liquid can be reversed with a feed pump 136 through a feed line 138, which contains a cleaning device 140 with a self-cleaning filter system, returned to the container 1 18.
  • the delivery line 138 has a line branch 142 which projects into the container 188 and has a nozzle 144.
  • the line branch 142 serves for the production of a process-liquid fluid jet 146 that passes coaxially through the container-side inlet region 120 and exits from the nozzle 144.
  • the outlet opening of the nozzle 144 is arranged in a tapering section of the inlet region 120 of the process fluid delivery line 16.
  • the portion of the line branch 142 receiving the nozzle 144 protrudes through the inlet opening 122 into the process fluid delivery line 16.
  • the delivery line 138 further comprises a line branch 148 which communicates with the flood chamber 12 and which is connected in parallel with the line branch 142.
  • the line branch 148 includes a shut-off valve 154. It can act as a bypass line, by means of the feed pump 136, the process liquid via the flood chamber 1 12 in the system 100 is recirculated.
  • the workpiece 1 14 In order to treat a workpiece 1 14 with process fluid in the system 100, z. B. in a first step, the workpiece 1 14 arranged in the flood chamber 1 12.
  • the flood chamber 1 12 In a second step following the first step, the flood chamber 1 12 is then flooded with the process fluid when the flood flap 1 17 is open, which is supplied from the container 1 18 through the delivery line 16 into the flood chamber 12.
  • a negative pressure is applied to the fluid chamber 1 12 by means of the fan 158 in the device 156.
  • the process liquid from the container 1 18 is then sucked back into the flood chamber 1 12 this measure.
  • process fluid containing the process fluid jet 146 is fed into the process fluid delivery line 116 through the delivery line 138 and the line branch 142 with the nozzle 144, which passes through the container-side inlet region 120 in the axial direction Venturi effect caused that supports the suction of process fluid from the container 1 18 in the process fluid supply line 1 16.
  • the invention relates to a system 10 for treating workpieces 14 with process fluid in a flood chamber 12.
  • the system has a container 18 for the provision of process fluid.
  • there is a process liquid supply line 16 which connects the container 18 for supplying process liquid with the flood chamber 12.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

L'invention concerne une installation (10) pour le traitement de pièces ouvrées (14) par un liquide de process dans une chambre d'immersion (12). L'installation comporte un récipient (18) pour fournir le liquide de process. Selon l'invention, l'installation (10) contient une conduite de transport du liquide de process (16) qui relie le récipient (18) pour l'alimentation en liquide de process à la chambre d'immersion (12).
EP14706820.9A 2013-02-25 2014-02-25 Systeme pour traiter des pieces Not-in-force EP2958685B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013203059.2A DE102013203059A1 (de) 2013-02-25 2013-02-25 Anlage für das Behandeln von Werkstücken
PCT/EP2014/053632 WO2014128307A1 (fr) 2013-02-25 2014-02-25 Installation pour le traitement de pièces ouvrées

Publications (2)

Publication Number Publication Date
EP2958685A1 true EP2958685A1 (fr) 2015-12-30
EP2958685B1 EP2958685B1 (fr) 2017-10-04

Family

ID=50184902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14706820.9A Not-in-force EP2958685B1 (fr) 2013-02-25 2014-02-25 Systeme pour traiter des pieces

Country Status (5)

Country Link
US (1) US10081037B2 (fr)
EP (1) EP2958685B1 (fr)
CN (1) CN105073286B (fr)
DE (1) DE102013203059A1 (fr)
WO (1) WO2014128307A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013203059A1 (de) 2013-02-25 2014-08-28 Dürr Ecoclean GmbH Anlage für das Behandeln von Werkstücken
DE102020208248A1 (de) * 2020-07-01 2022-01-05 Dürr Systems Ag Behandlungsstation, Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
DE102020208247A1 (de) * 2020-07-01 2022-01-05 Dürr Systems Ag Behandlungsstation, Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
DE102021214987A1 (de) 2021-12-23 2023-06-29 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
DE102023122261A1 (de) 2023-08-21 2025-02-27 Dürr Systems Ag Verfahren zum Behandeln von Werkstücken und Behandlungsanlage
DE102023122259A1 (de) 2023-08-21 2025-02-27 Dürr Systems Ag Behandlungsstation zum Behandeln von Werkstücken

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH670771A5 (fr) 1986-10-02 1989-07-14 Rolf Braegger
DE3731410A1 (de) * 1987-09-18 1989-04-06 Duerr Gmbh & Co Verfahren und anlage zum flutwaschen
DE4446587A1 (de) * 1994-12-24 1996-06-27 Ipsen Ind Int Gmbh Verfahren zur Reinigung metallischer Werkstücke
DE19609783B4 (de) * 1996-03-13 2005-08-25 Meissner, Werner Verfahren zum Reinigen von Gegenständen sowie Anlage zur Durchführung des Verfahrens
US7032435B2 (en) * 2001-10-09 2006-04-25 Brian Edward Hassenflug Liquid leak detector and automatic shutoff system
CA2458432C (fr) * 2004-02-18 2009-11-03 Allegiance Corporation Methode et dispositif d'elimination des residus de fluides corporels
DE102006039715A1 (de) * 2006-08-24 2008-02-28 Dürr Ecoclean GmbH Reinigungsvorrichtung mit einer Flutkammer
US8425977B2 (en) * 2008-09-29 2013-04-23 Applied Materials, Inc. Substrate processing chamber with off-center gas delivery funnel
DE102013203059A1 (de) 2013-02-25 2014-08-28 Dürr Ecoclean GmbH Anlage für das Behandeln von Werkstücken

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2014128307A1 *

Also Published As

Publication number Publication date
DE102013203059A1 (de) 2014-08-28
US10081037B2 (en) 2018-09-25
WO2014128307A1 (fr) 2014-08-28
CN105073286A (zh) 2015-11-18
US20150360262A1 (en) 2015-12-17
CN105073286B (zh) 2017-03-08
EP2958685B1 (fr) 2017-10-04

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