DE1208902B - Procedure for keeping measuring electrodes clean - Google Patents

Procedure for keeping measuring electrodes clean

Info

Publication number
DE1208902B
DE1208902B DEE26637A DEE0026637A DE1208902B DE 1208902 B DE1208902 B DE 1208902B DE E26637 A DEE26637 A DE E26637A DE E0026637 A DEE0026637 A DE E0026637A DE 1208902 B DE1208902 B DE 1208902B
Authority
DE
Germany
Prior art keywords
measuring electrodes
procedure
keeping
measuring
clean
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.)
Pending
Application number
DEE26637A
Other languages
German (de)
Inventor
Dr-Ing Ludwig Engel
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.)
JC Eckardt AG
Original Assignee
JC Eckardt AG
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 JC Eckardt AG filed Critical JC Eckardt AG
Priority to DEE26637A priority Critical patent/DE1208902B/en
Publication of DE1208902B publication Critical patent/DE1208902B/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
    • G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
    • G01F1/584—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters constructions of electrodes, accessories therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Description

Verfahren zur Reinhaltung von Meßelektroden Die Erfindung betrifft ein Verfahren zur Reinhaltung der Meßelektroden von magnetischen Durchflußmessern während des Betriebes.Method for keeping measuring electrodes clean The invention relates to a method for keeping the measuring electrodes of magnetic flow meters clean during operation.

Bei magnetischen Durchflußmessern, denen das Gesetz der magnetischen Induktion zugrunde liegt, sind ein oder mehrere Meßelektroden radial in einer Rohrwand angeordnet. Das als Meßstrecke dienende Rohrstück ist auf der dem strömenden Medium zugewandten Innenseite mit einer elektrisch isolierenden Schicht ausgekleidet, die von den Meßelektroden durchbrochen wird. In the case of magnetic flow meters, which the law of magnetic Induction is based, there are one or more measuring electrodes radially in a pipe wall arranged. The pipe section serving as the measuring section is on the side of the flowing medium facing inside lined with an electrically insulating layer, the is broken through by the measuring electrodes.

Während des Betriebes setzt sich auf dem Kopfteil der Meßelektrode, die mit dem Medium in Berührung steht. eine aus unterschiedlichen Teilchen zusammengesetzte Schicht ab. Diese Teilchen werden von dem strömenden Medium als Verunreinigung mitgeführt. During operation, the measuring electrode settles on the head part, which is in contact with the medium. one composed of different particles Shift off. These particles are carried along as contaminants by the flowing medium.

Die Bildung dieser Schmutzschicht wird besonders dann begünstigt, wenn das Gerät einige Zeit mit ruhendem Medium angefüllt war. Eine Inbetriebnahme führt dann regelmäßig zu einer falschen Meßanzeige des Gerätes.The formation of this layer of dirt is particularly favored if the device was filled with dormant medium for some time. A commissioning then regularly leads to an incorrect measurement display of the device.

Es ist bekannt, mit Hilfe mechanischer Vorrichun gell diese Schmutzschicht abzuwischen. Derartige von außen zu betätigende Vorrichtungen sind aufwendig und erfordern je nach dem Grad der Verunreinigung des strömenden Mediums eine mehr oder weniger häufige Bedienung. Bei anderen Geräten ist vorgesehen, verschmutzte Elektroden durch neue zu ersetzen, indem die neuen Elektroden von außen unter Druck eingeschoben werden und an die Stelle .er alten treten. die vom Medium weggespült werden. It is known, with the help of mechanical Vorrichun gel this layer of dirt to wipe off. Such externally operated devices are expensive and require one more or more depending on the degree of contamination of the flowing medium less frequent use. With other devices it is intended to use contaminated electrodes Replace with new ones by pushing in the new electrodes from the outside under pressure and take the place of the old ones. which are washed away by the medium.

Die bekannten Lösungen der Aufgabe haben den Nachteil. daß sie diskontinuierlich arbeiten, so daß jeweils zwischen Reinigung bzw. Ersatz der Elektroden die Meßergebnisse mehr oder weniger verf':cbt werden. The known solutions to the problem have the disadvantage. that they are discontinuous work so that the measurement results between cleaning or replacement of the electrodes more or less available.

Die Erfindung sicht ein kontinuierlich arbeitendes Verfahren von, daß die Nachteile der bekannten Anordnungen vermeidet. The invention views a continuously operating process from that avoids the disadvantages of the known arrangements.

Vs @ nird vorgeschlagen, den das strömende Medium herührenden Kopf der Meßelektrode als Teil eines Ultraschall-Generators auszubilden. Die Erregung des Kopfteiles kann entweder unmittelbar durch einen die Meßelektrode umfassenden Ultraschall-Sender erfolgen oder durch Zwischenschalten eines starren Stößels, der mit dem Kopf der Elektrode verbunden ist. Vs @ nird is proposed to be the head coming from the flowing medium the measuring electrode as part of a Train ultrasonic generator. The excitement of the head part can either directly through a measuring electrode encompassing Ultrasonic transmitter or by interposing a rigid plunger, the connected to the head of the electrode.

In Abwandlung des Erfindungsgedankens wird vorgeschlagen, den Kopf der Meßelektrode mit eventuell gebündelten Ultraschallwellen zu bestrahlen. Bei dieser Ausführung ist im Rohr an geeigneter Stelle ein Ultraschall- Sender angeordnet, und das Kopfstück der Meßelektrode ist den Ultraschallwellen des Senders ausgesetzt. Dabei sind Elektrode und Ultraschall-Sender zwei getrennte Baueinheiten im Gegensatz zur erstgenannten Ausführungsform. In a modification of the inventive concept, it is proposed to use the head irradiate the measuring electrode with possibly bundled ultrasonic waves. at In this version, an ultrasonic transmitter is arranged in the pipe at a suitable point, and the head of the measuring electrode is exposed to the ultrasonic waves of the transmitter. The electrode and the ultrasonic transmitter are two separate units in contrast to the first-mentioned embodiment.

Claims (2)

Patentansprüche: 1. Verfahren zur Reinhaltung der Meßelektroden eines magnetischen Durchflußmessers, dadurch g e k e n n z e i c h n e t, daß der mit dem strömenden Medium in Berührung stehende Kopfteil der Meßelektrede als Teil eines Ultraschall-Generators ausgebildet ist. Claims: 1. A method for keeping the measuring electrodes of a clean magnetic flow meter, it is noted that the with the flowing medium in contact with the head part of the meter reading as part of a Ultrasonic generator is formed. 2. Verfahren zur Reinhaltung der Meßelektroden eines magnetischen Durchflußmessers, dadurch gekennzeichnet, daß der mit dem strömenden Medium in Berührung stehende Kopfteil der Meßelektrode Ultraschallwellen empfängt. 2. Procedure for keeping the measuring electrodes of a magnetic Flow meter, characterized in that it is in contact with the flowing medium standing head part of the measuring electrode receives ultrasonic waves.
DEE26637A 1964-03-18 1964-03-18 Procedure for keeping measuring electrodes clean Pending DE1208902B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE26637A DE1208902B (en) 1964-03-18 1964-03-18 Procedure for keeping measuring electrodes clean

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE26637A DE1208902B (en) 1964-03-18 1964-03-18 Procedure for keeping measuring electrodes clean

Publications (1)

Publication Number Publication Date
DE1208902B true DE1208902B (en) 1966-01-13

Family

ID=7072268

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE26637A Pending DE1208902B (en) 1964-03-18 1964-03-18 Procedure for keeping measuring electrodes clean

Country Status (1)

Country Link
DE (1) DE1208902B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10045583B4 (en) * 2000-09-15 2013-07-25 Knick Elektronische Messgeräte GmbH & Co. KG Inductive conductivity cell
DE102014214740A1 (en) * 2014-07-28 2016-01-28 Ifm Electronic Gmbh Magnetic-inductive flowmeter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10045583B4 (en) * 2000-09-15 2013-07-25 Knick Elektronische Messgeräte GmbH & Co. KG Inductive conductivity cell
DE102014214740A1 (en) * 2014-07-28 2016-01-28 Ifm Electronic Gmbh Magnetic-inductive flowmeter

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