EP3077123B1 - Pulvérisateur rotatif à grande vitesse à chargement interne - Google Patents

Pulvérisateur rotatif à grande vitesse à chargement interne Download PDF

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Publication number
EP3077123B1
EP3077123B1 EP14803044.8A EP14803044A EP3077123B1 EP 3077123 B1 EP3077123 B1 EP 3077123B1 EP 14803044 A EP14803044 A EP 14803044A EP 3077123 B1 EP3077123 B1 EP 3077123B1
Authority
EP
European Patent Office
Prior art keywords
voltage
turbine housing
turbine
measuring
interference signal
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
EP14803044.8A
Other languages
German (de)
English (en)
Other versions
EP3077123A1 (fr
Inventor
Jörg Pfau
Jan Reichler
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.)
Eisenmann SE
Original Assignee
Eisenmann SE
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 SE filed Critical Eisenmann SE
Publication of EP3077123A1 publication Critical patent/EP3077123A1/fr
Application granted granted Critical
Publication of EP3077123B1 publication Critical patent/EP3077123B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/053—Arrangements for supplying power, e.g. charging power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
    • B05B5/0407—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0415—Driving means; Parts thereof, e.g. turbine, shaft, bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/043—Discharge apparatus, e.g. electrostatic spray guns using induction-charging

Definitions

  • the known high-rotation atomizers of the type mentioned in their high-voltage circuit have the above-mentioned measuring resistor.
  • the first measuring voltage dropping across it is used to control the high voltage.
  • the first measuring voltage is used to determine the residual high voltage, which is still on the turbine housing, so as a security measure.
  • This safety measure is generally highly effective; in general, however, there is a need to further reduce the risk potential emanating from a high-speed rotary atomizer.
  • a redundant monitoring of the voltage lying on the turbine housing and on all the electrically conductive components electrically connected therewith is thus provided which is independent of the already existing high-voltage circuit. If an excessively high deviation from the information obtained in the first measuring channel about the voltage on the turbine housing is detected in this second measuring channel, an interference signal is emitted immediately.
  • This redundant measure can significantly increase the safety of the operating personnel and the entire system.
  • the interference signal of the control device is preferably an optical or acoustic error signal can be triggered.
  • the operator is immediately alerted to the presence of a hazard so that it can move away from the danger area and / or take other suitable measures.
  • the voltage supply to the high-voltage circuit can be switched off by the interference signal of the control device. This measure significantly reduces the risk posed by a faulty high-speed rotary atomizer.
  • the safety function of a higher-level system control can be activated by the interference signal of the control device.
  • “superordinate” system control that control is understood which monitors and controls the entire coating process effected with the high-rotation atomizer. These include, for example, the security measures at the doors, which allow access to the rooms, where the high-speed atomizer works.
  • the high voltage circuit 3 contains, as well corresponds to the prior art, a measuring resistor 14. This is indicated only schematically in the drawing. One terminal of this measuring resistor 14 is connected via a line 9 to ground, the other via a line 8 to the turbine housing 7. The falling on the measuring resistor 14 first measuring voltage is determined by a likewise provided in the high-voltage circuit 3 monitoring circuit. After this first measuring voltage, the high voltage applied to the bell cup 6 is regulated during operation. After switching off the high-voltage circuit 3, further measures are triggered when a certain value of this first measuring voltage is exceeded. These processes are known in the art and therefore need not be described in detail here.
  • a control device 13 is supplied with both the first and the second measuring voltage. It compares the information obtained via two measuring channels with each other. If these deviate from each other in the result beyond a certain maximum value, this means that an error exists in one of the two measuring channels. In this case, an interference signal is generated, which warns the operator and causes it to take appropriate measures. In addition, the high voltage can be switched off automatically.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)

Claims (4)

  1. Atomiseur rotatif à vitesse élevée et fonctionnant avec un chargement interne, comprenant
    a) un boîtier extérieur (2) ;
    b) une buse en forme de cloche (6) montée à rotation ;
    c) une turbine, logée dans un carter (7) et faisant tourner ladite buse en forme de cloche (6) ;
    d) un circuit haute tension (3) auquel une basse tension peut être délivrée, qui engendre une haute tension à une sortie raccordée électriquement à ladite buse en forme de cloche (6), à ladite turbine et au carter (7) de ladite turbine, et qui inclut :
    da) une cascade (15) à haute tension ;
    db) une résistance de mesure (10) qui est installée sur un trajet de courant, entre la masse et ledit carter (7) de la turbine, et sur laquelle peut être prélevée une première tension de mesure représentant une évaluation de la tension appliquée audit carter (7) de la turbine ;
    caractérisé par
    e) la présence d'une résistance de mesure (10) supplémentaire, qui est pareillement installée sur un trajet de courant partant du carter (7) de la turbine et gagnant la masse, et sur laquelle peut être prélevée une seconde tension de mesure représentant une évaluation de la tension appliquée audit carter (7) de la turbine ;
    f) la présence d'un dispositif de commande (13) auquel les deux tensions de mesure peuvent être délivrées, et qui émet un signal de perturbation en cas de dépassement d'une valeur maximale de la différence entre ces tensions de mesure.
  2. Atomiseur rotatif à vitesse élevée, selon la revendication 1, caractérisé par le fait qu'un signal d'erreur, optique ou acoustique, peut être déclenché par l'intermédiaire du signal de perturbation du dispositif de commande (13).
  3. Atomiseur rotatif à vitesse élevée, selon l'une des revendications précédentes, caractérisé par le fait que la délivrance de tension, au circuit haute tension (3), peut être interrompue par l'intermédiaire du signal de perturbation du dispositif de commande (13).
  4. Atomiseur rotatif à vitesse élevée, selon l'une des revendications précédentes, caractérisé par le fait que la fonction de sûreté d'une commande prioritaire (16) d'installation peut être activée par l'intermédiaire du signal de perturbation du dispositif de commande (13).
EP14803044.8A 2013-12-03 2014-11-13 Pulvérisateur rotatif à grande vitesse à chargement interne Active EP3077123B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310022282 DE102013022282B3 (de) 2013-12-03 2013-12-03 Mit Innenaufladung arbeitender Hochrotationszerstäuber
PCT/EP2014/003048 WO2015082040A1 (fr) 2013-12-03 2014-11-13 Pulvérisateur rotatif à grande vitesse à suralimentation interne

Publications (2)

Publication Number Publication Date
EP3077123A1 EP3077123A1 (fr) 2016-10-12
EP3077123B1 true EP3077123B1 (fr) 2017-11-01

Family

ID=51987111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14803044.8A Active EP3077123B1 (fr) 2013-12-03 2014-11-13 Pulvérisateur rotatif à grande vitesse à chargement interne

Country Status (5)

Country Link
US (1) US10092916B2 (fr)
EP (1) EP3077123B1 (fr)
CN (1) CN105636706B (fr)
DE (1) DE102013022282B3 (fr)
WO (1) WO2015082040A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2020014215A (es) * 2018-06-25 2021-03-09 Basf Coatings Gmbh Metodo para determinar la longitud promedio del filamento durante una atomizacion rotativa y metodo de cribado basado en el mismo durante el desarrollo una pintura.
FR3108046B1 (fr) * 2020-03-11 2023-02-10 Exel Ind Pulvérisateur, installation comportant un tel pulvérisateur et procédé associé

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402030A (en) 1982-02-19 1983-08-30 Champion Spark Plug Company Electrostatic voltage control circuit
DE19511255A1 (de) 1995-03-27 1996-10-02 Gema Volstatic Ag Elektrostatische Sprühbeschichtungseinrichtung
FR2736773B1 (fr) 1995-07-10 1997-08-22 Sames Sa Procede d'elaboration de haute tension et dispositif de projection electrostatique de produit de revetement
US5908162A (en) * 1998-02-25 1999-06-01 Nordson Corporation Spray gun having an anti-back-ionization probe with a control system therefor
FR2780211B1 (fr) * 1998-06-18 2000-09-08 Binks Sames France Sa Procede de commande de moyens de declenchement de securite dans un generateur de haute tension et generateur de haute tension mettant en oeuvre un tel procede
DE19903824A1 (de) * 1999-02-02 2000-09-14 Daimler Chrysler Ag System zur Überwachung eines elektrostatischen Zerstäubers
DE10053292C1 (de) 2000-10-27 2002-05-23 Eisenmann Lacktechnik Kg Hochrotationszerstäuber zur Aufbringung von Pulverlack
KR101106696B1 (ko) * 2003-07-24 2012-01-18 랜스버그 인더스트리얼 피니싱 케이.케이. 정전도장장치
EP1797962B1 (fr) * 2004-08-10 2012-06-06 Abb K.K. Appareil de revetement electrostatique
JP4445830B2 (ja) 2004-10-14 2010-04-07 ランズバーグ・インダストリー株式会社 静電式散布装置
DE102006024311A1 (de) 2006-05-24 2007-11-29 Berthold Technologies Gmbh & Co. Kg Schaltung zur Übermittlung eines analogen Signalwertes
DE102008008201B4 (de) * 2008-01-31 2011-07-21 Haug GmbH & Co. KG., 70771 Hochspannungsgenerator für Luftionisationsgeräte
DE102008027997A1 (de) * 2008-06-12 2009-12-24 Dürr Systems GmbH Universalzerstäuber
US20100145516A1 (en) * 2008-12-08 2010-06-10 Illinois Tool Works Inc. High voltage monitoring system and method for spray coating systems
US9662669B2 (en) 2012-01-25 2017-05-30 Abb K.K. Electrostatic coating apparatus
CN102901863A (zh) * 2012-10-10 2013-01-30 株洲南车时代电气股份有限公司 一种电压信号和电流信号测量装置及方法
EP2910310B1 (fr) * 2012-10-17 2018-01-31 Trinity Industrial Corp. Dispositif de revêtement électrostatique et procédé d'inspection de l'état fondamental

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
US20160303589A1 (en) 2016-10-20
WO2015082040A1 (fr) 2015-06-11
CN105636706A (zh) 2016-06-01
DE102013022282B3 (de) 2015-03-05
CN105636706B (zh) 2019-05-03
EP3077123A1 (fr) 2016-10-12
US10092916B2 (en) 2018-10-09

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