DE3735515C2 - Device for inductive flow measurement with a measuring tube made of ceramic, glass, metal or plastic - Google Patents

Device for inductive flow measurement with a measuring tube made of ceramic, glass, metal or plastic

Info

Publication number
DE3735515C2
DE3735515C2 DE19873735515 DE3735515A DE3735515C2 DE 3735515 C2 DE3735515 C2 DE 3735515C2 DE 19873735515 DE19873735515 DE 19873735515 DE 3735515 A DE3735515 A DE 3735515A DE 3735515 C2 DE3735515 C2 DE 3735515C2
Authority
DE
Germany
Prior art keywords
measuring tube
rings
tube
metal
ceramic
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 - Fee Related
Application number
DE19873735515
Other languages
German (de)
Other versions
DE3735515A1 (en
Inventor
Dieter Meier
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.)
Fischer and Porter GmbH
Original Assignee
Fischer and Porter GmbH
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 Fischer and Porter GmbH filed Critical Fischer and Porter GmbH
Priority to DE19873735515 priority Critical patent/DE3735515C2/en
Priority to CH282688A priority patent/CH675911A5/de
Priority to NL8801922A priority patent/NL8801922A/en
Priority to GB8824565A priority patent/GB2211301B/en
Publication of DE3735515A1 publication Critical patent/DE3735515A1/en
Application granted granted Critical
Publication of DE3735515C2 publication Critical patent/DE3735515C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/18—Supports or connecting means for meters

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)
  • Joints Allowing Movement (AREA)

Description

Die Erfindung betrifft eine Vorrichtung nach dem Oberbegriff des Anspruchs 1, wie sie aus Fig. 4 der DE 36 16 227 A1 be­ kannt ist. Dort sind die Ringe auf das Meßrohr aufgeschrumpft, wodurch das Meßrohr unter Vorspannung steht und bei Betrieb brechen kann. Um diese Vorrichtung zusammenbauen zu können, muß ferner der Innendurchmesser des Trägerrohrs größer als der Außendurchmesser der Ringe sein. Wegen des unvermeidlichen Zwischenraums zwischen Trägerrohr und Meßrohr ist die Konstruk­ tionsfreiheit von Meßrohr und Trägerrohr eingeschränkt. Nach einer weiteren Ausführung gemäß Fig. 6 dieser Schrift ist der Ring ohne Vermittlung eines elastischen Dichtungsrings in einem axial offenen Ringflansch des Meßrohrs aufgenommen.The invention relates to a device according to the preamble of claim 1, as it is known from FIG. 4 of DE 36 16 227 A1. There the rings are shrunk onto the measuring tube, which means that the measuring tube is under tension and can break during operation. In order to be able to assemble this device, the inner diameter of the carrier tube must also be larger than the outer diameter of the rings. Because of the unavoidable space between the support tube and the measuring tube, the design freedom of the measuring tube and the support tube is restricted. According to a further embodiment according to FIG. 6 of this document, the ring is accommodated in an axially open ring flange of the measuring tube without the provision of an elastic sealing ring.

Aufgabe der Erfindung ist es, die Bruchsicherheit des Meßrohrs ohne Einschränkung der Konstruktionsfreiheit der Vorrichtung zu erhöhen.The object of the invention is the break resistance of the measuring tube without restricting the design freedom of the device increase.

Die Lösung dieser Aufgabe ist in Anspruch 1 angegeben.The solution to this problem is specified in claim 1.

Zur Lösung der Aufgabe haben sich besonders die Ausführungen gemäß Anspruch 2 und 3 bewährt.In particular, the explanations have to solve the task proven according to claim 2 and 3.

Die Erfindung wird im folgenden an einem Ausführungsbeispiel unter hinweis auf die beigefügte Zeichnung erläutert.The invention is based on an embodiment explained with reference to the accompanying drawing.

In der Zeichnung ist ein Meßrohr in einem Trägerrohr mit den zugehörigen, zur Abstützung dienenden Ringen im Achsschnitt dargestellt.In the drawing, a measuring tube is in a carrier tube with the associated support rings in the axial section shown.

Ein Meßrohr 2 aus Keramik, Glas, Metall oder Kunststoff ist in ein Trägerrohr 4 aus Metall eingesetzt. Zwischen den Enden 6, 8 des Meßrohrs 2 und den Enden 10, 12 des Trä­ gerrohrs 4 befinden sich Ringe 14, 16 aus Keramik, Glas, Me­ tall oder Kunststoff, die an dem Meßrohr 2 und dem Träger­ rohr 4 durch elastische Dichtungsringe 18, 20, 22, 24 abgestützt sind. A measuring tube 2 made of ceramic, glass, metal or plastic is inserted into a carrier tube 4 made of metal. Between the ends 6 , 8 of the measuring tube 2 and the ends 10 , 12 of the carrier tube 4 there are rings 14 , 16 made of ceramic, glass, metal or plastic, which are on the measuring tube 2 and the carrier tube 4 by elastic sealing rings 18 , 20 , 22 , 24 are supported.

Zur Aufnahme der Ringe 18, 20, 22, 24 befinden sich in den Enden 6, 8 des Meßrohrs 2 und den Enden 10, 12 des Trägerrohrs 4 axial offene Ringausnehmungen 26, 28, 30, 32.To receive the rings 18 , 20 , 22 , 24 there are axially open ring recesses 26 , 28 , 30 , 32 in the ends 6 , 8 of the measuring tube 2 and the ends 10 , 12 of the carrier tube 4 .

Die Dichtungsringe 18, 20, 22, 24 liegen in axial inneren Ringschultern 34, 36, 38, 40, die in den radial inneren und radial äußeren, axial nach innen weisenden Kantenbe­ reichen der Ringe 14, 16 eingeformt sind.The sealing rings 18 , 20 , 22 , 24 are located in the axially inner annular shoulders 34 , 36 , 38 , 40 , which are formed in the radially inner and radially outer, axially inwardly facing edges of the rings 14 , 16 .

Claims (3)

1. Vorrichtung zur induktiven Durchflußmessung mit einem in ein Trägerrohr (4) aus Metall einzusetzenden Meßrohr (2) aus Keramik, Glas oder Kunststoff, wobei sich zwischen den Enden (6, 8) des Meßrohrs (2) und dem Trägerrohr (4) Ringe (14, 16) aus Keramik, Glas, Metall oder Kunststoff befinden, die an dem Trägerrohr (4) durch elastische Dichtungsringe (20, 24) abgestützt sind, dadurch gekennzeichnet, daß die Ringe (14, 16) in axial offene Ringausnehmungen (18, 32) in den Enden (10, 12) des Trägerrohrs (4) eingesetzt sind und sich zwischen den Ringen (14, 16) und dem Meßrohr (2) weitere elastische Dichtungsringe (18, 22) befinden, über die das Meßrohr (2) an dem Trägerrohr (4) abgestützt ist.1. Device for inductive flow measurement with a measuring tube ( 2 ) made of ceramic, glass or plastic to be inserted into a carrier tube ( 4 ) made of metal, with rings between the ends ( 6 , 8 ) of the measuring tube ( 2 ) and the carrier tube ( 4 ) ( 14 , 16 ) made of ceramic, glass, metal or plastic, which are supported on the carrier tube ( 4 ) by elastic sealing rings ( 20 , 24 ), characterized in that the rings ( 14 , 16 ) are in axially open ring recesses ( 18 , 32 ) are inserted into the ends ( 10 , 12 ) of the carrier tube ( 4 ) and there are further elastic sealing rings ( 18 , 22 ) between the rings ( 14 , 16 ) and the measuring tube ( 2 ), via which the measuring tube ( 2 ) is supported on the support tube ( 4 ). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet , daß sich in den Enden (6, 8) des Meßrohrs (2) weitere axial offene Ringausnehmungen (26, 30) zur Aufnahme der Ringe (14, 16) befinden.2. Device according to claim 1, characterized in that in the ends ( 6 , 8 ) of the measuring tube ( 2 ) there are further axially open ring recesses ( 26 , 30 ) for receiving the rings ( 14 , 16 ). 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Dichtungsringe (18, 20, 22, 24) in Ringschultern (34, 36, 38, 40) liegen, die in den axial innen liegenden, radial inneren und radial äußeren Kantenbereichen der Ringe (14, 16) eingeformt sind.3. Apparatus according to claim 1 or 2, characterized in that the sealing rings ( 18 , 20 , 22 , 24 ) in annular shoulders ( 34 , 36 , 38 , 40 ) are located in the axially inner, radially inner and radially outer edge regions the rings ( 14 , 16 ) are molded.
DE19873735515 1987-10-20 1987-10-20 Device for inductive flow measurement with a measuring tube made of ceramic, glass, metal or plastic Expired - Fee Related DE3735515C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19873735515 DE3735515C2 (en) 1987-10-20 1987-10-20 Device for inductive flow measurement with a measuring tube made of ceramic, glass, metal or plastic
CH282688A CH675911A5 (en) 1987-10-20 1988-07-25
NL8801922A NL8801922A (en) 1987-10-20 1988-08-02 APPARATUS FOR INDUCTIVE TRANSIT MEASUREMENT WITH A TESTING TUBE OF CERAMIC, GLASS, METAL OR PLASTIC.
GB8824565A GB2211301B (en) 1987-10-20 1988-10-20 Flow measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873735515 DE3735515C2 (en) 1987-10-20 1987-10-20 Device for inductive flow measurement with a measuring tube made of ceramic, glass, metal or plastic

Publications (2)

Publication Number Publication Date
DE3735515A1 DE3735515A1 (en) 1989-05-03
DE3735515C2 true DE3735515C2 (en) 1998-04-09

Family

ID=6338728

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873735515 Expired - Fee Related DE3735515C2 (en) 1987-10-20 1987-10-20 Device for inductive flow measurement with a measuring tube made of ceramic, glass, metal or plastic

Country Status (4)

Country Link
CH (1) CH675911A5 (en)
DE (1) DE3735515C2 (en)
GB (1) GB2211301B (en)
NL (1) NL8801922A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135574C2 (en) * 1991-10-29 1994-06-23 Danfoss As Measuring tube for an electromagnetic flow meter
DE69332128T2 (en) * 1992-01-31 2003-03-27 Kabushiki Kaisha Toshiba, Kawasaki Electromagnetic flow meter
DE10302251B4 (en) * 2003-01-22 2013-03-07 Sensorentechnologie Gettorf Gmbh Flow Sensor
DE102005018841A1 (en) 2005-04-22 2006-11-02 Abb Patent Gmbh Flowmeter
US7637169B2 (en) * 2008-01-25 2009-12-29 Rosemount, Inc. Flangeless magnetic flowmeter with integrated retention collar, valve seat and liner protector
DE102008056871A1 (en) * 2008-11-12 2010-06-10 Abb Technology Ag Flowmeter
WO2010094293A1 (en) * 2009-02-17 2010-08-26 Siemens Aktiengesellschaft Electromagnetic flowmeter and method of manufacture thereof
DE102013114429A1 (en) * 2013-12-19 2015-06-25 Endress + Hauser Flowtec Ag Measuring tube for a magnetic-inductive flowmeter and electromagnetic flowmeter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3616227A1 (en) * 1985-05-14 1986-11-27 Yamatake-Honeywell Co. Ltd., Tokio/Tokyo ELECTROMAGNETIC FLOW METER

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1156875A (en) * 1967-07-07 1969-07-02 Mawdsley S Ltd Improvements in or relating to Electromagnetic Flowmeters.
DE3423921A1 (en) * 1984-06-29 1986-01-02 Danfoss A/S, Nordborg ELECTROMAGNETIC FLOW METER

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3616227A1 (en) * 1985-05-14 1986-11-27 Yamatake-Honeywell Co. Ltd., Tokio/Tokyo ELECTROMAGNETIC FLOW METER

Also Published As

Publication number Publication date
CH675911A5 (en) 1990-11-15
NL8801922A (en) 1989-05-16
GB8824565D0 (en) 1988-11-23
GB2211301B (en) 1991-10-30
GB2211301A (en) 1989-06-28
DE3735515A1 (en) 1989-05-03

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee