DE10333547A1 - Method and device for potential control of a common line arrangement - Google Patents
Method and device for potential control of a common line arrangement Download PDFInfo
- Publication number
- DE10333547A1 DE10333547A1 DE10333547A DE10333547A DE10333547A1 DE 10333547 A1 DE10333547 A1 DE 10333547A1 DE 10333547 A DE10333547 A DE 10333547A DE 10333547 A DE10333547 A DE 10333547A DE 10333547 A1 DE10333547 A1 DE 10333547A1
- Authority
- DE
- Germany
- Prior art keywords
- pig
- potential
- station
- conductive medium
- hose
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000012799 electrically-conductive coating Substances 0.000 claims abstract 2
- 210000000056 organ Anatomy 0.000 claims description 13
- 241000282887 Suidae Species 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims 6
- 239000002344 surface layer Substances 0.000 claims 1
- 238000013016 damping Methods 0.000 description 24
- 239000003973 paint Substances 0.000 description 22
- 238000007599 discharging Methods 0.000 description 4
- 239000004922 lacquer Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B05B5/16—Arrangements for supplying liquids or other fluent material
- B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
- B05B5/1616—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material
- B05B5/1625—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material the insulating means comprising an intermediate container alternately connected to the grounded material source for filling, and then disconnected and electrically insulated therefrom
-
- 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
- B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
- B05B12/1481—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet comprising pigs, i.e. movable elements sealingly received in supply pipes, for separating different fluids, e.g. liquid coating materials from solvent or air
-
- 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
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/10—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
- 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
- B05B5/16—Arrangements for supplying liquids or other fluent material
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Electrostatic Spraying Apparatus (AREA)
- Semiconductor Integrated Circuits (AREA)
- Coating Apparatus (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Einrichtung zur Potentialsteuerung einer gemolchten Leitungsanordnung gemäß dem Oberbegriff der unabhängigen Patentansprüche.The The invention relates to a method and a device for potential control a gemollchten line arrangement according to the preamble of the independent claims.
Gemolchte
Leitungsanordnungen benötigt man
bekanntlich in Beschichtungsanlagen für die elektrostatische Serienbeschichtung
von Werkstücken
wie z.B. Fahrzeugkarossen mit Wasserlack oder ähnlich leitfähigem Beschichtungsmaterial,
das von einem Molch oder zwischen zwei Molchen von einer Molchsendestation
zu der Molchzielstation durch die Leitung gefördert wird (
Bei den hier betrachteten Leitungsanordnungen besteht das Problem, dass die durch die Leitung geförderte Lacksäule oder das sonstige leitende Medium eine hohe elektrische Kapazität bildet, die bei den üblichen Längen (z.B. bis 20 m) und Innendurchmessern (z.B. 8 mm) typisch in der Größenordnung von 500 pF liegen kann. Wenn die Lacksäule sich der Molchzielstation nähert, ist sie zunächst durch die vor ihr befindliche Luft (oder ein anderes Isoliermedium) von der Zielstation isoliert. Sobald aber ein als Isolierstrecke ausreichender Mindestabstand zwischen der Lacksäule und der Zielstation unterschritten wird und die durch die Lacksäule gebildete Kapazität vor oder in der Zielstation schlagartig je nach der Förderrichtung auf das Hochspannungspotential aufgeladen oder auf Erdpotential entladen wird, entstehen hohe Stromspitzen, die zu ungewolltem Abschalten der Hochspannung durch das Überwachungs- und Steuersystem der Anlage führen, weil sie als Störung gewertet werden. Außerdem können bei der Umladung entstehende Funken Schäden zur Folge haben oder aus Sicherheitsgründen unzulässig sein.at The line arrangements considered here have the problem that those promoted by the line paint column or the other conductive medium forms a high electrical capacity, the at the usual lengths (for example, up to 20 m) and inside diameters (e.g. Order of magnitude 500 pF can lie. When the paint column is at the pig destination station approaches, she is first through the air (or other insulating medium) in front of it the destination station isolated. But as soon as a sufficient as Isolierstrecke The minimum distance between the paint column and the target station has fallen below and that through the paint column formed capacity before or in the destination station abruptly depending on the direction of conveyance charged to the high voltage potential or at ground potential is discharged, high current peaks, which lead to unintentional shutdown the high voltage through the monitoring and control system of the plant, because they as a disorder get ranked. Furthermore can sparks resulting from transhipment will result in damage or failure security inadmissible be.
Zur Lösung dieses Problems besteht an sich die Möglichkeit, auf der Versorgungsseite einen Dämpfungswiderstand zwischen die geerdete Molchstation und deren Masseanschluss zu schalten, während auf der Hochspannungsseite ein Dämpfungswiderstand in die Verbindung des Hochspannungserzeugers mit dem Applikationsorgan geschaltet werden kann. Der Spannungsabfall an dem Dämpfungswiderstand der Hochspannungsseite hat aber den wesentlichen Nachteil, dass er die elektrostatische Aufladung des Beschichtungsmaterials beeinträchtigt. Außerdem kann es für die Steuerung der Beschichtungsanlage wichtig sein, dass die definierte Spannung des Hochspannungserzeugers möglichst genau auch am Zerstäuber vorhanden ist, während festes Erdpotential an der Molchstation der Versorgungsseite aus Sicherheitsgründen notwendig sein kann.to solution This problem is inherent in the supply side a damping resistor between the grounded pig station and its ground connection, while on the high voltage side a damping resistor in the connection of the high voltage generator with the application organ can be switched. The voltage drop across the damping resistor But the high voltage side has the significant disadvantage that it impairs the electrostatic charge of the coating material. Furthermore can it for The control of the coating system must be important to the defined voltage the high voltage generator as accurately as possible also at the atomizer is present while firm Ground potential at the pig station of the supply side necessary for safety reasons can be.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren bzw. eine Einrichtung der betrachteten Gattung anzugeben, die unerwünschte Stromspitzen beim Auf- oder Entladen des durch die gemolchte Leitung geförderten leitfähigen Mediums und vor allem ungewollten Anlagenstillstand ohne Beeinträchtigung der Sollpotentiale und insbesondere der Hochspannung am Applikationsorgan vermeidet.Of the The invention is therefore based on the object, a method or a Establish the type considered, the unwanted current peaks when loading or unloading the subsidized by the gemold line conductive Medium and especially unwanted plant shutdown without impairment the setpoint potentials and in particular the high voltage at the application organ avoids.
Diese Aufgabe wird durch die Merkmale der Patentansprüche gelöst.These The object is solved by the features of the claims.
Da erfindungsgemäß das Beschichtungsmaterial oder sonstige leitfähige Medien bei der Annäherung an die Molchzielstation über einen hochohmigen Dämpfungswiderstand auf deren Potential gelegt wird, bevor ein Abstand von dem leitenden Bestandteil der Molchzielstation erreicht wird, bei dem es zu einem Spannungsdurchbruch, d.h. zu schlagartiger Auf- oder Entladung des leitfähigen Mediums kommen kann, werden Funken und unerwünschte Stromspitzen und ein dadurch verursachter Stillstand der Beschichtungsanlage zuverlässig vermieden, und da der erfindungsgemäß vorgesehene Dämpfungswiderstand zumindest während der Beschichtung nicht innerhalb der elektrischen Verbindung des Hochspannungserzeugers mit dem Applikationsorgan liegt, kann auch kein unerwünschter Spannungsabfall zum Applikationsorgan auftreten. Ebenso wenig wird das Erdpotential der versorgungsseitigen Molchstation beeinträchtigt.Since according to the invention the coating material or other conductive media is placed on the potential of the pig target station via a high-impedance damping resistor before a distance from the conductive component of the pig target station is reached, in which there is a voltage breakdown, ie to sudden charging or discharging of the conductive medium, sparks and unwanted current peaks and a standstill of the coating system caused thereby reliably avoided, and since the damping resistor provided according to the invention, at least during the coating is not within the electrical connection of the high voltage generator with the application organ, no unwanted Spannungsab can case occur to the application organ. Nor is the ground potential of the supply-side pig station impaired.
Gemäß einem ersten Ausführungsbeispiel der Erfindung wird das leitfähige Medium von einem Dämpfungswiderstand aufgeladen oder entladen, der zwischen das Potential der jeweiligen Molchzielstation und eine das leitfähige Medium kontaktierende elektrisch leitende Kontaktstelle der Leitung geschaltet ist.According to one first embodiment of the Invention becomes the conductive Medium of a damping resistor charged or discharged between the potential of each Pig target station and a conductive medium contacting electrically conductive contact point of the line is connected.
Gemäß einem zweiten Ausführungsbeispiel der Erfindung wird das leitfähige Medium dagegen von der selbst den Dämpfungswiderstand bildenden Leitung aufgeladen oder entladen. Dieses Ausführungsbeispiel hat also den besonderen Vorteil, dass keine zusätzlichen Bauteile wie externe Dämpfungswiderstände, Hochspannungskabel und Verteiler notwendig sind. Günstig ist auch, dass die Molche nicht durch eine Trennstelle im Schlauch beeinträchtigt werden können.According to one second embodiment of the Invention becomes the conductive Medium on the other hand of the self-damping line forming line charged or discharged. This embodiment therefore has the special advantage that no additional components such as external Damping resistors, high voltage cables and distributors are necessary. Cheap is also that the newts are not through a separation point in the hose be affected can.
Bei diesen beiden Ausführungsbeispielen ist der Dämpfungswiderstand jeweils elektrisch parallel zu der bei Annäherung des leitfähigen Mediums an die Molchstation zwischen dem Medium und dem elektrisch leitenden Bestandteil der Molchstation gebildeten Isolierstrecke oder, mit anderen Worten, parallel zu der die Molchstation erreichenden Lack- oder Mediumsäule geschaltet und innerhalb der Leitung an diese angeschlossen. Gemäß einem weiteren Ausführungsbeispiel besteht aber auch die Möglichkeit, das leitfähige Medium über einen Dämpfungswiderstand aufzuladen, der bei Annäherung des Mediums an die Molchzielstation in die elektrische Verbindung des Hochspannungserzeugers mit dem Applikationsorgan geschaltet und während der Beschichtung elektrisch leitend überbrückt wird. Eine entsprechende Widerstandsanordnung ist auch auf der Versorgungsseite zwischen der Molchstation und deren Erdpotentialanschluss denkbar.at these two embodiments is the damping resistance each electrically parallel to the approach of the conductive medium to the pig station between the medium and the electrically conductive Part of the pig station formed Isolierstrecke or, with In other words, parallel to the pier station reaching paint or medium column switched and connected within the line to this. According to one another embodiment but it is also possible the conductive one Medium over a damping resistor charging when approaching the Medium to the pig destination station in the electrical connection of the High voltage generator connected to the application organ and while the coating is bridged electrically conductive. A corresponding Resistor assembly is also on the supply side between the pig station and its Erdpotentialanschluss conceivable.
An den in der Zeichnung dargestellten Ausführungsbeispielen wird die Erfindung näher erläutert. Es zeigenAt the embodiments illustrated in the drawings, the invention explained in more detail. It demonstrate
Die
in
Die
zur Potentialtrennung zwischen den beiden Molchstationen
Erfindungsgemäß soll vermieden
werden, dass der zunächst
auf dem Potential der jeweiligen Molchsendestation befindliche Farblack
Die
Kontaktstellen
Eine
Abwandlung des oben beschriebenen Ausführungsbeispiels ist in
Das
in
Die
erfindungsgemäße Aufladung
bzw. Entladung durch den Schlauch erfolgt, während die Farbsäule
Der
Schlauch
Die
eingangs erwähnte
weitere Möglichkeit der
Einschaltung von Dämpfungswiderständen zwischen
die Molchstationen und deren Potentialanschluss ist in
Der
Schalter
Claims (17)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10333547A DE10333547A1 (en) | 2003-07-23 | 2003-07-23 | Method and device for potential control of a common line arrangement |
EP04016358A EP1500435B1 (en) | 2003-07-23 | 2004-07-12 | Method and device for the potential control of a pigged pipes arrangement |
DE502004003193T DE502004003193D1 (en) | 2003-07-23 | 2004-07-12 | Method and device for potential control of a common line arrangement |
ES04016358T ES2281720T3 (en) | 2003-07-23 | 2004-07-12 | PROCEDURE AND DEVICE FOR THE CONTROL OF THE POTENTIAL OF A DISPOSAL OF CONDUCT CLEANED WITH SCRATCHES. |
AT04016358T ATE356672T1 (en) | 2003-07-23 | 2004-07-12 | METHOD AND DEVICE FOR POTENTIAL CONTROL OF A PULLED LINE ARRANGEMENT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10333547A DE10333547A1 (en) | 2003-07-23 | 2003-07-23 | Method and device for potential control of a common line arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10333547A1 true DE10333547A1 (en) | 2005-02-10 |
Family
ID=33483032
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10333547A Ceased DE10333547A1 (en) | 2003-07-23 | 2003-07-23 | Method and device for potential control of a common line arrangement |
DE502004003193T Expired - Lifetime DE502004003193D1 (en) | 2003-07-23 | 2004-07-12 | Method and device for potential control of a common line arrangement |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE502004003193T Expired - Lifetime DE502004003193D1 (en) | 2003-07-23 | 2004-07-12 | Method and device for potential control of a common line arrangement |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1500435B1 (en) |
AT (1) | ATE356672T1 (en) |
DE (2) | DE10333547A1 (en) |
ES (1) | ES2281720T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014004718A1 (en) * | 2014-04-01 | 2015-10-01 | Eisenmann Ag | Coating system and method for coating objects |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012001563B4 (en) | 2012-01-27 | 2019-05-09 | Dürr Systems Ag | Paint booth with a coating agent line and corresponding production method for the coating agent line |
CN104066263A (en) * | 2013-03-20 | 2014-09-24 | 鸿富锦精密电子(天津)有限公司 | Electrostatic gun |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10131562A1 (en) * | 2001-06-29 | 2003-01-16 | Duerr Systems Gmbh | Method and system for supplying a coating device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19961271A1 (en) | 1999-12-18 | 2001-07-05 | Duerr Systems Gmbh | Painting device |
DE10033987A1 (en) | 2000-07-13 | 2002-01-24 | Duerr Systems Gmbh | Process for supplying a coating member for the electrostatic series coating of workpieces and supply system therefor |
DE10157966A1 (en) | 2001-11-27 | 2003-06-05 | Duerr Systems Gmbh | Method and supply system for the metered supply of material to a coating device |
DE10239516A1 (en) | 2002-08-28 | 2004-03-18 | Dürr Systems GmbH | Hose with pig for delivery of electrically conductive fluid paints or varnishes at high voltage comprises an inner layer enclosed in an insulating layer with high voltage resistance |
DE10313063A1 (en) | 2002-09-11 | 2004-04-01 | Dürr Systems GmbH | connecting element |
-
2003
- 2003-07-23 DE DE10333547A patent/DE10333547A1/en not_active Ceased
-
2004
- 2004-07-12 DE DE502004003193T patent/DE502004003193D1/en not_active Expired - Lifetime
- 2004-07-12 EP EP04016358A patent/EP1500435B1/en not_active Expired - Lifetime
- 2004-07-12 AT AT04016358T patent/ATE356672T1/en not_active IP Right Cessation
- 2004-07-12 ES ES04016358T patent/ES2281720T3/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10131562A1 (en) * | 2001-06-29 | 2003-01-16 | Duerr Systems Gmbh | Method and system for supplying a coating device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014004718A1 (en) * | 2014-04-01 | 2015-10-01 | Eisenmann Ag | Coating system and method for coating objects |
US10710108B2 (en) | 2014-04-01 | 2020-07-14 | Eisenmann Se | Coating system and method for coating objects |
Also Published As
Publication number | Publication date |
---|---|
DE502004003193D1 (en) | 2007-04-26 |
EP1500435A2 (en) | 2005-01-26 |
EP1500435B1 (en) | 2007-03-14 |
EP1500435A3 (en) | 2005-12-21 |
ES2281720T3 (en) | 2007-10-01 |
ATE356672T1 (en) | 2007-04-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |