DE102006033343A1 - Drain device for draining liquids from air pipe, has control device which is formed likewise to open drain passage also as function of first signal - Google Patents
Drain device for draining liquids from air pipe, has control device which is formed likewise to open drain passage also as function of first signal Download PDFInfo
- Publication number
- DE102006033343A1 DE102006033343A1 DE200610033343 DE102006033343A DE102006033343A1 DE 102006033343 A1 DE102006033343 A1 DE 102006033343A1 DE 200610033343 DE200610033343 DE 200610033343 DE 102006033343 A DE102006033343 A DE 102006033343A DE 102006033343 A1 DE102006033343 A1 DE 102006033343A1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- chamber
- passage
- time
- control device
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/265—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors for discrete levels
Abstract
Description
Die voliegende Erfindung bezieht sich auf eine Abflussvorrichtung mit kapazitivem Sensor zum Ableiten von Flüssigkeiten aus einem Luftrohr, und insbesondere auf eine Vorrichtung zum Ableiten von Kondensation in Druckluftsystemen.The The present invention relates to a drainage device Capacitive sensor for draining liquids from an air tube, and more particularly to an apparatus for dissipating condensation in compressed air systems.
Wie bekannt weist eine Vorrichtung zum Ableiten von Kondensation eine Auffangkammer auf, in der Kondensation, die sich in dem Rohr, mit dem die Vorrichtung verbunden ist, bildet, aufgrund von Schwerkraft abgelagert wird. Der Kondensations – Füllstand wird normalerweise von einem Maximalfüllstands – Sensor detektiert, der automatisch ein Abflussventil öffnet, wenn die Auffangkammer voll ist.As As is known, an apparatus for dissipating condensation Auffangkammer on, in the condensation, located in the pipe, with the device is connected, due to gravity is deposited. The condensation level will normally be from a maximum level sensor detects that automatically opens a drain valve when the collecting chamber is full.
Es sind Abflussvorrichtungen bekannt, bei denen der Maximalfüllstands – Sensor kapazitiv ist, d.h. die dielektrische Veränderung zwischen zwei Platten in der Auffangkammer detektiert und ein elektrisches Signal an eine Steuerungseinheit überträgt, welche das Abflussventil öffnet, wenn das elektrische Signal einen gegebenen Schwellenwert erreicht.It Drain devices are known in which the maximum level sensor capacitive, i. the dielectric change between two plates detected in the collection chamber and an electrical signal to a Control unit transmits which the drain valve opens, when the electrical signal reaches a given threshold.
Bekannte Abflussvorrichtungen mit kapazitivem Sensor sind unbefriedigend insofern, als diese spezifisch auf die abzuleitende Flüssigkeit – und daher gemäß der spezifischen Anwendung der Vorrichtung – eingestellt werden müssen.Known Outflow devices with capacitive sensor are unsatisfactory insofar as they are specific to the liquid to be drained - and therefore according to the specific Application of the device - adjusted Need to become.
In der Tat variiert das elektrische Signal von dem Füllstands – Sensor linear wesentlich, als eine Funktion des Füllstands oder der Höhe der Flüssigkeit zwischen den Platten, und mit einem Proportionalitätskoeffizienten, der von der elektrischen Leitfähigkeit der Flüssigkeit abhängt. Mit anderen Worten, der Sensor gibt mit derselben Einstellung unterschiedliche Output – Signale aus für unterschiedliche Flüssigkeiten bei demselben Füllstand zwischen den Platten. Kondensation zum Beispiel ist im Wesentlichen durch Wasser definiert, in dem Metallpartikel aufgelöst oder suspendiert sind, und diese ist daher von relativ hoher elektrischer Leitfähigkeit, wohingegen die elektrische Leitfähigkeit von Öl normalerweise relativ niedrig ist. Als ein Ergebnis benötigen Abflussvorrichtungen in Öl – Ableitungsanwendungen, im Gegensatz zu Kondensations – Ableitungsanwendungen, eine empfindlichere Einstellung, d.h. diese müssen so eingestellt werden, dass sie das Abflussventil bei einem niedrigeren Schwellenwert öffnen.In In fact, the electrical signal from the level sensor varies linearly essential, as a function of the level or height of the liquid between the plates, and with a proportionality coefficient, that of the electrical conductivity the liquid depends. In other words, the sensor gives different settings with the same setting Output signals out for different liquids at the same level between the plates. For example, condensation is essentially defined by water, dissolved or dissolved in the metal particle are suspended, and this is therefore of relatively high electrical Conductivity, whereas the electrical conductivity of oil normally relatively low. As a result, drainage devices require in oil drainage applications, in Contrast to condensation - drainage applications, a more sensitive setting, i. these must be set so that they open the drain valve at a lower threshold.
Andererseits kann es sein, im Falle von unbeabsichtigtem Zufluss von Öl, dass Abflussvorrichtungen, die auf einen höheren Kondensations – Ableitungs – Schwellenwert eingestellt sind, im Betrieb versagen, was zu dem Überlaufen der Auffangkammer führt, aufgrund der Tatsache, dass das Output – Signal von dem Füllstandssensor möglicherweise nie den festgesetzten Schwellenwert erreicht, selbst wenn der Raum zwischen den Platten vollständig mit Öl gefüllt ist.on the other hand It may be, in case of unintentional inflow of oil, that Outflow devices that are at a higher condensation drain threshold are set to fail in operation, resulting in overflowing the collecting chamber leads, due to the fact that the output signal from the level sensor possibly never reached the set threshold, even if the room completely between the plates with oil filled is.
Darüberhinaus hängt die tatsächliche Kondensations – Ablaufzeit einserseits von dem Fließabschnitt des Abflussventils ab und andererseits von dem operativen Druck des pneumatischen Systems, mit dem die Abflussvorrichtung verbunden ist; während in den obigen, bekannten Lösungen die Zeit der Öffnung des Abflussventils vorab auf einen festen Wert festgesetzt wird, der breit genug ist für den Einsatz derselben Abflussvorrichtung über eine weite Spanne von Betriebsdrucken in unterschiedlichen pneumatischen Systemen hinweg.Furthermore depends on that actual Condensation expiration time on the one side of the flow section the drain valve and on the other hand from the operative pressure the pneumatic system to which the drainage device is connected is; while in the above known solutions the time of opening the drain valve is set to a fixed value in advance, which is wide enough for the use of the same drainage device over a wide range of operating pressures in different pneumatic systems.
Indem so vorgegangen wird, ist jedoch normalerweise der Abfluss von Kondensation beendet, bevor das Abflussventil geschlossen wird, was zu einem Austritt von Druckluft und Schwund aus dem pneumatischen System über die verbleibende Länge an Zeit, für die das Abflussventil offen bleibt, führt. In einem Versuch, diesen Nachteil zu verhindern, ist das Bereitstellen eines kapazitiven Minimalfüllstands – Sensors bekannt, der das Ablaufventil schließt, welcher aber relativ kostenintensive Lösungen und relativ komplexe Steuerungssysteme mit sich bringt.By doing However, this is usually the outflow of condensation stopped before the drain valve is closed, resulting in a Outflow of compressed air and wastage from the pneumatic system via the remaining length Time for the drain valve remains open leads. In an attempt, this Disadvantage is to provide a capacitive Minimum level sensor known that closes the drain valve, but which is relatively expensive solutions and relatively complex control systems.
Es ist ein Ziel der vorliegenden Erfindung, eine Abflussvorrichtung mit kapazitivem Sensor zum Ableiten von Flüssigkeiten aus einem Luftrohr bereitzustellen, die so konstruiert ist, dass diese eine unkomplizierte und kostengünstige Lösung für die obigen Probleme bereitstellt.It is an object of the present invention, a drainage device with capacitive sensor for draining liquids from an air pipe designed to be uncomplicated and cost-effective solution for the provides above problems.
Gemäß der vorliegenden Erfindung wird eine Abflussvorrichtung nach Anspruch 1 mit kapazitivem Sensor zum Ableiten von Flüssigkeiten aus einem Luftrohr bereitgestellt.According to the present Invention is a drainage device according to claim 1 with capacitive sensor for draining liquids provided from an air tube.
Eine nicht einschränkende Ausführung der Erfindung wird als Beispiel unter Bezugnahme auf die begleitenden Zeichnungen beschrieben, in denen:A not restrictive execution The invention will be described by way of example with reference to the accompanying drawings Drawings in which:
Nummer
Vorrichtung
Kammer
Ventil
Vorrichtung
Genauer
gesagt ist Sensor
Sensoren
Jeder
Sensor
Sensoren
Wie
in
Einheit
Wenn
der Wert von Signal U1 größer als
Null wird (YES – Output
von Block
Wenn
der Wert von Signal U2 größer als
Null wird (YES – Output
von Block
Wenn
die Werte der Signale U1, U2 einander gleich werden (YES – Output
von Block
In
diesem Zusammenhang sollte darauf hingewiesen werden, dass Signal
U1 von dem Bodensensor
Der
Maximalwert von Signal U1 stellt daher einen Schwellenwert für Kammer
In
Bezug auf
An
diesem Punkt berechnet Einheit
Wenn
dann Zeit T2 berechnet worden ist, löst Einheit
Die
Vorteile von Vorrichtung
Insbesondere
kann Vorrichtung
Das
Vergleichen von Signalen U1, U2 und das Berechnen des obigen Schwellenwerts
sind relativ unkompliziert, dadurch, dass der Durchgang
Gleichzeitig
schützt
Sensor
Zudem
ist das Schließen
von Durchgang
Es
ist klar, dass Veränderungen
an Vorrichtung
Zum
Beispiel kann, um irgendwelche Unterschiede zwischen Sensoren
An
Stelle eines Countdowns von Zeit T2 kann Einheit
Sensoren
Vorrichtung
Schließlich kann
Vorrichtung
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO20050493 ITTO20050493A1 (en) | 2005-07-19 | 2005-07-19 | CAPACITATIVE SENSOR DRAINAGE DEVICE TO DISCHARGE LIQUIDS FROM A PNEUMATIC DUCT |
ITTO05A000493 | 2005-07-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006033343A1 true DE102006033343A1 (en) | 2007-03-08 |
Family
ID=37668247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610033343 Withdrawn DE102006033343A1 (en) | 2005-07-19 | 2006-07-19 | Drain device for draining liquids from air pipe, has control device which is formed likewise to open drain passage also as function of first signal |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE102006033343A1 (en) |
IT (1) | ITTO20050493A1 (en) |
NL (1) | NL1032208C2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010108610A1 (en) * | 2009-03-25 | 2010-09-30 | Daimler Ag | Method for discontinuously emptying a container |
DE102017011691A1 (en) * | 2017-12-18 | 2019-06-19 | Mann+Hummel Gmbh | Sensor drainage unit, liquid separator and method for drainage quantity control of a liquid separator |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4782698A (en) * | 1986-12-29 | 1988-11-08 | General Motors Corporation | Method and apparatus for measuring oil level |
DE9007491U1 (en) * | 1989-04-05 | 1992-01-30 | Koch, Berthold, 4040 Neuss, De |
-
2005
- 2005-07-19 IT ITTO20050493 patent/ITTO20050493A1/en unknown
-
2006
- 2006-07-19 DE DE200610033343 patent/DE102006033343A1/en not_active Withdrawn
- 2006-07-19 NL NL1032208A patent/NL1032208C2/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010108610A1 (en) * | 2009-03-25 | 2010-09-30 | Daimler Ag | Method for discontinuously emptying a container |
DE102017011691A1 (en) * | 2017-12-18 | 2019-06-19 | Mann+Hummel Gmbh | Sensor drainage unit, liquid separator and method for drainage quantity control of a liquid separator |
Also Published As
Publication number | Publication date |
---|---|
NL1032208C2 (en) | 2007-07-17 |
ITTO20050493A1 (en) | 2007-01-20 |
NL1032208A1 (en) | 2007-01-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20130720 |