DE7619769U1 - COIL ARRANGEMENT OF A FLOW METER OPERATING ACCORDING TO THE INDUCTION PROCESS - Google Patents
COIL ARRANGEMENT OF A FLOW METER OPERATING ACCORDING TO THE INDUCTION PROCESSInfo
- Publication number
- DE7619769U1 DE7619769U1 DE7619769U DE7619769U DE7619769U1 DE 7619769 U1 DE7619769 U1 DE 7619769U1 DE 7619769 U DE7619769 U DE 7619769U DE 7619769 U DE7619769 U DE 7619769U DE 7619769 U1 DE7619769 U1 DE 7619769U1
- Authority
- DE
- Germany
- Prior art keywords
- iron
- measuring tube
- saddle coils
- coil arrangement
- coils
- 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.)
- Expired
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
- G01F1/586—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 coils, magnetic circuits, accessories therefor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Description
16. Juni 1976 K 23 5/Kid/LtJune 16, 1976 K 23 5 / Kid / Lt
Firma Ludwig Kroh,ne, Ίΐοο DuisburgLudwig Kroh, ne, Ίΐοο Duisburg
Spulenanordnung eines nach dem Induktionsverfahren arbeitenden DurchflußmeßgerätesCoil arrangement according to the induction method working flow meter
Die Mauerung betrifft eine Spulenanordnung eines nach dem Induktionsverfahren arbeitenden Durchflußmeßgeräts.The masonry relates to a coil arrangement according to the induction method working flow meter.
Bei den vorgenannten Durchflußmeßgeräten werden zur Erzeugung eines ausreichend starken magnetischen Feldes im Meßrohr entsprechend große Spulen verwendet, die in der Regel paarweise gegenüberliegend und aus konstruktiven Gründen im Abstand vom Meßrohr angeordnet sind. Da diese Spulenanordnurgen dann noch von einem Gehäuse umgeben werden, bekommen diese Meßwertgeber -verglichen mit dem Durchmesser des Meßrohres- eine stattlich-a Größe, die sich häufig bei der Montage, insbesondere bei engen Platzverhältnissen, als sehr störend und nachteilig auswirkt.In the aforementioned flowmeters are used to generate a sufficiently strong magnetic field in the measuring tube accordingly large coils are used, usually in pairs opposite one another and, for structural reasons, at a distance from each other Measuring tube are arranged. Since these coil arrangements are still from are surrounded by a housing, these transducers get -compared to the diameter of the measuring tube- a stately -a size, which often occur during assembly, especially in tight spaces, has a very annoying and detrimental effect.
Dieser Machteil wird nach dem neuerungsgemäßen Spulenaufbau dadurch vermieden, daß die Spulen in dem parallel zur Rohrachse verlaufenden Teil je auf einem am Meßrohr bogenförmig anliegenden Eisens treif en aufliegen.., und daß beide Sattelspulen von einem etwa gleich breiten Eisenronrstück umgeben sind, wobei der zwischen dem inneren EisenKurn und dem äußeren Eisenmantel verbleibende Zwischenraum innerhalb der Sattelspulen ebenfalls durch ein etwa der Spulendicke entsprechendes Eisenteil ausgefüllt ist.This disadvantage is after the innovation according to the coil structure avoided that the coils in the part running parallel to the tube axis each lie on an arcuate part on the measuring tube Iron strips lie on top .., and that both saddle coils are surrounded by an iron piece of approximately the same width, with the between the inner iron turn and the outer iron jacket The space within the saddle coils is also filled by an iron part corresponding approximately to the coil thickness.
Durch diese konstruktive Gestaltung der Spulenanordnung und insbesondere durch die Verwendung von Eisenkernen ist es möglich, die 'Jpuleii n.iiier zusammenzubringen und dadurch zu einer kompakteren Bauweise zu gelangen. Es leuchtet ein, daß sich hierdurch der magnetische Widerstand betrachtlich verringert , so daß die an die Spulen anzulegende spannung in gleichem Maße reduziert werden kann, ohne daß die Feldstärke dadurch kleiner wird.This structural design of the coil arrangement and in particular through the use of iron cores it is possible to bring the 'Jpuleii n.iiier together and thereby to a more compact one Construction method. It stands to reason that this the magnetic resistance is considerably reduced, so that the voltage to be applied to the coils can be reduced to the same extent without the field strength becoming smaller as a result.
In der Zeichnung ist ein Ausführungsbeispiel eines Meßwertgebers mit der neuerungisgemäßen Spulenanordnung dargestellt. Es zeigtIn the drawing is an embodiment of a transducer shown with the coil arrangement according to the innovation. It shows
7619769 28.10.767619769 10/28/76
Fig. 1 einen Meßwert t;.!Uer in Seitenansicht mit. Tc i lbchn i 111 shows a measured value t ;.! Uer in a side view with. Tc i lbchn i 11
im unteren bereich der Spule und Fig. 2 einen Schnitt durch die Spulenanordnung ^e.im!.1, Linie II - II nach Fig. 1in the lower region of the coil and FIG. 2 shows a section through the coil arrangement ^ e.im !. 1 , line II - II according to FIG. 1
Im Innern des Meßwertgebers befindet sich ein mit einer Teflonschicht 1 ausgekleidetes Meßrohr 2, das an seinen Enden mit Anschlußflanschen 3 versehen ist. Mit diesen Flanschen 3 kann der Meßwertgeber in eine bestehende Rohrleitung eingeschaltet beziehungsweise angeschlossen werden. Auf dem Meßrohr 2 sind symmetrisch zueinander zwei Sattelspulen 4 angeordnet, die den Raum zwischen den Flanschen 3 etwa ausfüllen und sich im übrigen dem quer zur Rohrachse verlaufenden Teil der Rohrkrümmung anpassen. Ferner sind auch an der Innenwand des Meßrohres 2 im Zentrum der Sattelspulen 4 -wie "Iblieh- xwei Elektroden 5 in der Teflonschicht 1 eingebettet und über einen Elektrodenstab 6 mit einer Anschlußstelle 7 verbunden, von der aus die an den Elektroden durch die vorbeiströmende Flüssigkeit induzierte Spannung zu einem nicht dargestellten Meßwertverstärker geleitet wird. Die Eiektrodendchäe verläuft genau mittig zwischen den beiden Sattelspulen M und ist somit iciiMc^.u ^-a vi«_fk dort erzeugten magnetischen Feldlinien ausgerichtet.Inside the transmitter there is a with a Teflon layer 1 lined measuring tube 2 which is provided with connecting flanges 3 at its ends. With these flanges 3 can the transducer can be switched on or connected to an existing pipeline. On the measuring tube 2 are two saddle coils 4 arranged symmetrically to one another, which approximately fill the space between the flanges 3 and which are otherwise adapt to the part of the pipe bend running transversely to the pipe axis. Furthermore, on the inner wall of the measuring tube 2 in the center of the saddle coils 4 -like "Iblieh- xwei electrodes 5 embedded in the Teflon layer 1 and connected via an electrode rod 6 to a connection point 7 from which the Voltage induced at the electrodes by the liquid flowing past to a measurement amplifier (not shown) is directed. The Eiektrodendchäe runs exactly in the middle between the two saddle coils M and is thus iciiMc ^ .u ^ -a vi «_fk aligned there generated magnetic field lines.
Die Sattelspulen 4 liegen in dem parallel zur Rohrachse verlaufenden Teil 4a jeweils auf einem am Meßrohr bogenförmig anliegenden Eisenstreifen 8, während sie in dem quer zur Rohrachse verlaufenden Teil 4b einen entsprechenden Luftspalt zum Meßrohr aufweisen. Beide Sattelspulen 4 sind ferner über die gleiche Breite wie die Lisenstreifen 8 von einem Eisenrohrstück 9 umgeben, d is über eine Verschraubung Io mit dem Meßrohr / fest, verijijn i':ii ist. Zwischen Lisenrohr y und Kisenst rei f en H :>^f m.let s i cm aulWf.leia nocn ein Einenstück 11, welches etwa ·:Κ:η Innenrauin zwischen den Spu h;nw indungen ausfüllt, /-u.n :.ohutz der Spulenanordnung Kann der Kaum um die Spulen 4 zwisonen den Flanschen j mit einer geeigneten Gießmasse 12 bis etw-i an die gestrichelte Linie heran ausgefüllt werden.The saddle coils 4 lie in the part 4a running parallel to the tube axis each on an iron strip 8 lying in an arc on the measuring tube, while they have a corresponding air gap to the measuring tube in the part 4b running transversely to the tube axis. Both saddle coils 4 are also surrounded over the same width as the Lisenstreifen 8 of an iron pipe section 9, is d via a screw Io with the measuring tube / solid, i verijijn ': is ii. Between Lisenrohr y and Kisenst rei f en H:> ^ f m.let si cm aulWf.leia nocn a one piece 11, which about Coil arrangement Can the space around the coils 4 between the flanges j be filled with a suitable casting compound 12 up to about the dashed line.
7619769 28.10.767619769 10/28/76
Claims (1)
anliegenden Eisenstreifen (8) aufliegen, und daß beide Sattelspulen (4, von einem etwa gleich breiten Eisenrohrstück (9) umgeben sind, wobei der zwischen dem inneren Eisenkern (8) und
dem äußeren Eisenrnantel (9) verbleibenden Zwischenraum innerhalb der Sattelspulen (4) ebenfalls durch ein etwa der Spulendicke entsprechendes Eisenteil (11) ausgefüllt ist. Coil arrangement of a flow measuring device working according to the induction method, consisting of a measuring tube provided with connecting flanges, at least two saddle coils arranged symmetrically around the measuring tube and adapted to the pipe curvature, as well as two electrodes arranged on an inner pipe wall in the center of the saddle coils, with their axis perpendicular to the direction of the field lines, characterized in that the coils (4) in the part (4a) running parallel to the tube axis are each arcuate on one on the measuring tube (2)
resting iron strips (8), and that both saddle coils (4, are surrounded by an approximately equally wide piece of iron pipe (9), the one between the inner iron core (8) and
the outer iron jacket (9) remaining space inside the saddle coils (4) is also filled by an iron part (11) corresponding approximately to the coil thickness.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE7619769U DE7619769U1 (en) | 1976-06-22 | 1976-06-22 | COIL ARRANGEMENT OF A FLOW METER OPERATING ACCORDING TO THE INDUCTION PROCESS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE7619769U DE7619769U1 (en) | 1976-06-22 | 1976-06-22 | COIL ARRANGEMENT OF A FLOW METER OPERATING ACCORDING TO THE INDUCTION PROCESS |
Publications (1)
Publication Number | Publication Date |
---|---|
DE7619769U1 true DE7619769U1 (en) | 1976-10-28 |
Family
ID=6666673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE7619769U Expired DE7619769U1 (en) | 1976-06-22 | 1976-06-22 | COIL ARRANGEMENT OF A FLOW METER OPERATING ACCORDING TO THE INDUCTION PROCESS |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE7619769U1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3225226A1 (en) * | 1981-07-06 | 1983-02-17 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | ELECTROMAGNETIC FLOW METER |
DE3420963A1 (en) * | 1984-06-06 | 1985-12-12 | Danfoss A/S, Nordborg | ELECTROMAGNETIC FLOW METER |
DE3501768A1 (en) * | 1985-01-21 | 1986-07-24 | Danfoss A/S, Nordborg | ELECTROMAGNETIC FLOW METER |
DE3511033A1 (en) * | 1985-03-27 | 1986-10-02 | Rheometron AG, Basel | MEASURING VALUE FOR MAGNETIC-INDUCTIVE FLOW MEASURING DEVICES |
-
1976
- 1976-06-22 DE DE7619769U patent/DE7619769U1/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3225226A1 (en) * | 1981-07-06 | 1983-02-17 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | ELECTROMAGNETIC FLOW METER |
DE3420963A1 (en) * | 1984-06-06 | 1985-12-12 | Danfoss A/S, Nordborg | ELECTROMAGNETIC FLOW METER |
DE3501768A1 (en) * | 1985-01-21 | 1986-07-24 | Danfoss A/S, Nordborg | ELECTROMAGNETIC FLOW METER |
DE3511033A1 (en) * | 1985-03-27 | 1986-10-02 | Rheometron AG, Basel | MEASURING VALUE FOR MAGNETIC-INDUCTIVE FLOW MEASURING DEVICES |
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