EP1245292A1 - Rotationszerstäuber und Verfahren zur Steuerung seiner Antriebsturbine - Google Patents
Rotationszerstäuber und Verfahren zur Steuerung seiner Antriebsturbine Download PDFInfo
- Publication number
- EP1245292A1 EP1245292A1 EP02006826A EP02006826A EP1245292A1 EP 1245292 A1 EP1245292 A1 EP 1245292A1 EP 02006826 A EP02006826 A EP 02006826A EP 02006826 A EP02006826 A EP 02006826A EP 1245292 A1 EP1245292 A1 EP 1245292A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbine
- atomizer
- medium
- drive
- drive medium
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/1085—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces with means for detecting or controlling the rotational speed
-
- 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
Definitions
- the invention relates to a method for controlling the drive turbine a rotary atomizer and one for Implementation of the process according to suitable rotary atomizers the preamble of the independent claims.
- an electrostatic atomizer for the serial coating of workpieces such as vehicle bodies.
- the object of the invention is a method or a rotary atomizer, the increased energy requirement for the drive turbine can provide without unnecessary energy consumption.
- the invention has the advantage that with a given atomizer depending on need and operating conditions both low as well as very high amounts of paint, each with optimal drive energy or performance can be atomized. Switching on the additional amount of air can be due in particular to high paint requirements and / or the acceleration phase from standstill high speeds are limited. Another through the invention created possibility is the drive energy for example when changing the atomizer to another Paint or when replacing the bell plate for one e.g. larger and / or heavier embodiment on each switch best size. In addition, by switching the respective speed control behavior also improved.
- Brake air can be used during normal operation the drive air to establish a stable equilibrium counteracts. It becomes the turbine to this Purpose via a separate one leading into the atomizer Brake air hose supplied and does not need to be regulated.
- the brake air is expediently the drive input of the turbine via one inside the atomizer from the brake air line branching channel supplied. Since the brake air line anyway is required, can be in this embodiment on a additional air hose leading from the outside into the atomizer for the additional energy to be dispensed with Space may be undesirable.
- the rotary atomizer shown schematically in Fig. 1 contains a storage unit 1 with a bell plate 2 above an air turbine driving, for example, an air-bearing shaft 3 with the turbine wheel 4.
- the bearing unit 1 is located in turn in the atomizer housing 5.
- the turbine wheel 4 is transferred from an external speed controller DR to the Atomizer leading hose 7 and one as an internal basic supply line serving feed channel 8 of the atomizer drive air A fed. From another speed controller output receives the turbine wheel 4 via a valve VB and a separate line LB brake air B.
- the basic supply line 8 can also consist of several in parallel at different There are channels opening into the turbine wheel. So on So far, it has been described as conventional act electrostatic rotary atomizer.
- the mode of operation of the speed controller for example one opto-electronically recorded actual value of the turbine speed compares with a target value and in the event of deviations Actuating and venting valves of an actuator and can also control a brake valve is known per se.
- the invention contains through the hose 7 and the channel 8 formed air supply path of the turbine e.g. pneumatic or electrically controlled valve arrangement 10 which locks off a separate duct 11 for connecting air, which also drives the turbine wheel 4 on this empties.
- the turbine e.g. pneumatic or electrically controlled valve arrangement 10 which locks off a separate duct 11 for connecting air, which also drives the turbine wheel 4 on this empties.
- Several additional channels 11 with several can also be used Nozzles can be provided on the turbine wheel.
- valve arrangement 10 instead of a simple open / close function, the valve arrangement 10 also the way into channel 11 (or the ways into both channels 8 and 11) for the respective operating and control conditions throttle best values. This throttling can can be automatically set and changed.
- Fig. 2 shows a modified embodiment in which the release and shut-off valve arrangement for the additional Air volume is outside the storage unit in the atomizer housing 5 or outside of the atomizer as at 10 ' or 10 "is shown.
- Fig. 3 shows a further embodiment, which differs from those according to Fig. 1 and Fig. 2 differs in that the separate Channel 11 'for the additional air not from channel 8 of the Primary supply line branches off, but from a separate Output on the speed control unit DR '.
- the control to regulate the air volume is in the speed control element integrated, and the supply to the turbine takes place via two completely separate air intakes, corresponding of the respective load can be controlled.
- FIG. 4 Invention can with respect to the speed controller DR, the air hose 47, the valve arrangement 40, the channels 48 and 41, the brake line LB and the turbine 44, the elements DR 7, 10, 8, 11, LB and 4 of the embodiment described with reference to FIG. 1 correspond.
- branching from the valve assembly 10 in FIG. 1 Channel 11 branches here from the brake line LB via one e.g. pneumatically or electrically controlled valve arrangement 43 a channel 42 from which the turbine 44 exhausts the air the brake air hose forming the line LB as an additional one Drive medium feeds.
- the turbine with the brake air at the start of operation accelerate to a nominal speed and then only in the usual way the brake input of the turbine supply.
- another drive or Brake medium can be used.
Landscapes
- Electrostatic Spraying Apparatus (AREA)
- Nozzles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
- Fig. 1
- einen elektrostatischen Rotationszerstäuber mit einer Luftturbine in schematischer Darstellung;
- Fig. 2 und Fig. 3
- abgewandelte Ausführungsformen des Rotationszerstäubers gemäß Fig. 1; und
- Fig. 4
- ein weiteres Ausführungsbeispiel der Erfindung.
Claims (13)
- Verfahren zur Steuerung der Antriebsturbine eines Rotationszerstäubers für die Serienbeschichtung von Werkstücken,
wobei das Turbinenantriebsmedium (A) dem Turbinenrad (4) von einer durch den Zerstäuber führenden Versorgungsleitung (7, 8) mit bedarfsabhängig gesteuerten oder geregelten Druck- oder Mengengrößen zugeführt wird,
dadurch gekennzeichnet, daß dem Turbinenrad (4) bei einem erhöhten Bedarf an Antriebsenergie zusätzliches Antriebsmedium durch Zuschalten mindestens eines gesonderten Kanals (11) zugeführt wird. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das zusätzliche Antriebsmedium aus einer insbesondere von einem Drehzahlregler (DR) zu der Turbine führenden Leitung (7) abgezweigt und die Abzweigung (10) bei geringerem Energiebedarf gesperrt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das zusätzliche Antriebsmedium innerhalb des Zerstäubers aus der in den Zerstäuber führenden Leitung (7) abgezweigt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das zusätzliche Antriebsmedium außerhalb des Zerstäubers aus der in den Zerstäuber führenden Leitung (7) abgezweigt wird.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß das zusätzliche Antriebsmedium der Turbine von einem zweiten Ausgang einer Regeleinheit (DR') geliefert wird, die an ihrem ersten Ausgang die Grundversorgungsleitung (7, 8) speist.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß das zusätzliche Antriebsmedium unabhängig von dem durch die Grundversorgungsleitung (7, 8) fließenden Medium (A) geregelt wird.
- Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Abzweigung (10) pneumatisch oder elektrisch mit einem Ventil gesteuert wird.
- Verfahren nach Anspruch 1 zur Steuerung einer Antriebsturbine, der über eine in den Zerstäuber führende Bremsleitung (LB) ein dem Antriebsmedium entgegenwirkendes Bremsmedium zugeführt wird,
dadurch gekennzeichnet, dass dem Turbinenrad (4) bei erhöhtem Bedarf an Antriebsenergie durch Zuschalten eines aus der Bremsleitung (LB) abzweigenden Kanals Bremsmedium als zusätzliches Antriebsmedium zugeführt wird. - Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass das Bremsmedium die Turbine bis zum Erreichen einer Nenndrehzahl beschleunigt, bevor es dem Bremseingang der Turbine zugeführt wird.
- Rotationszerstäuber zur Durchführung des Verfahrens nach Anspruch 1
mit einer Antriebsturbine, der das Antriebsmedium (A) über eine durch den Zerstäuber führende Versorgungsleitung (7, 8) zugeführt wird,
dadurch gekennzeichnet, daß der Zerstäuber einen ebenfalls zu der Turbine führenden gesonderten Kanal (11) für zusätzliches Antriebsmedium hat, der über ein gesteuertes Absperrorgan (10, 10', DR') zuschaltbar ist. - Rotationszerstäuber nach Anspruch 10, dadurch gekennzeichnet, daß das Absperrorgan (10) ein in dem Zerstäuber befindliches pneumatisch oder elektrisch gesteuertes Ventil enthält.
- Beschichtungsanlage mit einem Zerstäuber nach Anspruch 10 oder 11 und mit einer Drehzahlregeleinheit, aus der der Antriebsturbine das Antriebsmedium über die Versorgungsleitung (7, 8) zugeführt wird, dadurch gekennzeichnet, daß auch der gesonderte Kanal (11') für zusätzliches Antriebsmedium von der Drehzahlregeleinheit (DR) zu der Turbine führt.
- Beschichtungsanlage nach Anspruch 12, dadurch gekennzeichnet, daß die beiden Mediumzuführungen (8, 11') unabhängig voneinander lastabhängig steuerbar oder regelbar sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10115469 | 2001-03-29 | ||
DE10115469A DE10115469A1 (de) | 2001-03-29 | 2001-03-29 | Rotationszerstäuber und Verfahren zur Steuerung seiner Antriebsturbine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1245292A1 true EP1245292A1 (de) | 2002-10-02 |
EP1245292B1 EP1245292B1 (de) | 2003-06-18 |
Family
ID=7679495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02006826A Expired - Lifetime EP1245292B1 (de) | 2001-03-29 | 2002-03-25 | Rotationszerstäuber und Verfahren zur Steuerung seiner Antriebsturbine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1245292B1 (de) |
AT (1) | ATE243076T1 (de) |
DE (2) | DE10115469A1 (de) |
ES (1) | ES2201044T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011054496A1 (de) * | 2009-11-04 | 2011-05-12 | Dürr Systems GmbH | Beschichtungsverfahren und beschichtungsanlage mit dynamischer anpassung der zerstäuberdrehzahl und der hochspannung |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022105999A1 (de) | 2022-03-15 | 2023-09-21 | Dürr Systems Ag | Turbinenantrieb für einen Rotationszerstäuber und zugehöriges Betriebsverfahren |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4650123A (en) * | 1986-03-25 | 1987-03-17 | Toyota Jidosha Kabushiki Kaisha | Rotary type electrostatic spray painting device |
DE4306800A1 (de) | 1993-03-04 | 1994-09-08 | Duerr Gmbh & Co | Beschichtungsvorrichtung mit einem Rotationszerstäuber |
-
2001
- 2001-03-29 DE DE10115469A patent/DE10115469A1/de not_active Withdrawn
-
2002
- 2002-03-25 AT AT02006826T patent/ATE243076T1/de not_active IP Right Cessation
- 2002-03-25 DE DE50200015T patent/DE50200015D1/de not_active Expired - Lifetime
- 2002-03-25 ES ES02006826T patent/ES2201044T3/es not_active Expired - Lifetime
- 2002-03-25 EP EP02006826A patent/EP1245292B1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4650123A (en) * | 1986-03-25 | 1987-03-17 | Toyota Jidosha Kabushiki Kaisha | Rotary type electrostatic spray painting device |
DE4306800A1 (de) | 1993-03-04 | 1994-09-08 | Duerr Gmbh & Co | Beschichtungsvorrichtung mit einem Rotationszerstäuber |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011054496A1 (de) * | 2009-11-04 | 2011-05-12 | Dürr Systems GmbH | Beschichtungsverfahren und beschichtungsanlage mit dynamischer anpassung der zerstäuberdrehzahl und der hochspannung |
CN102596422A (zh) * | 2009-11-04 | 2012-07-18 | 杜尔系统有限责任公司 | 具有对喷雾器转速和高压进行动态匹配的涂层方法和涂层设备 |
CN102596422B (zh) * | 2009-11-04 | 2016-02-24 | 杜尔系统有限责任公司 | 具有对喷雾器转速和高压进行动态匹配的涂层方法和涂层设备 |
US10052644B2 (en) | 2009-11-04 | 2018-08-21 | Duerr Systems Gmbh | Coating method and coating system having dynamic adaptation of the atomizer rotational speed and the high voltage |
Also Published As
Publication number | Publication date |
---|---|
ES2201044T3 (es) | 2004-03-16 |
DE10115469A1 (de) | 2002-10-10 |
EP1245292B1 (de) | 2003-06-18 |
ATE243076T1 (de) | 2003-07-15 |
DE50200015D1 (de) | 2003-07-24 |
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