WO2007059790A1 - Procede de soudage d'une extremite de tuyau a la paroi exterieure d'un support par un cote interne reduit de l'extremite du tuyau ; agencement fabrique selon ce procede ; debitmetre a ultrasons - Google Patents

Procede de soudage d'une extremite de tuyau a la paroi exterieure d'un support par un cote interne reduit de l'extremite du tuyau ; agencement fabrique selon ce procede ; debitmetre a ultrasons Download PDF

Info

Publication number
WO2007059790A1
WO2007059790A1 PCT/EP2005/012643 EP2005012643W WO2007059790A1 WO 2007059790 A1 WO2007059790 A1 WO 2007059790A1 EP 2005012643 W EP2005012643 W EP 2005012643W WO 2007059790 A1 WO2007059790 A1 WO 2007059790A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
pipe
wall
welded
carrier
Prior art date
Application number
PCT/EP2005/012643
Other languages
German (de)
English (en)
Inventor
Morten Storgaard Nielsen
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PCT/EP2005/012643 priority Critical patent/WO2007059790A1/fr
Publication of WO2007059790A1 publication Critical patent/WO2007059790A1/fr

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
    • G01F1/66—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 measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/662—Constructional details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B23K33/004—Filling of continuous seams
    • B23K33/006—Filling of continuous seams for cylindrical workpieces
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/06—Tubes

Definitions

  • the invention relates to a method for welding a pipe end to the outer wall of a carrier, in particular to the outer wall of a measuring tube of a Ultraschall prepare- measuring device, according to the preamble of claim 1, an arrangement produced by the method, according to the preamble of claim 2 and an ultrasonic flow device according to the preamble of claim 3.
  • An ultrasonic flowmeter is known for example from DE 103 28 662 Al.
  • a flowing medium whose flow volume is to be measured is passed through a measuring tube, on the tube wall axially offset from each other ultrasonic transducers are mounted. These are operated alternately as transmit and receive transducers.
  • an ultrasonic signal is sent upstream and downstream. From the time difference between the transit time of the upstream signal and the transit time of the downstream signal, the volume flow of the medium can be calculated.
  • the ultrasonic transducers are pressed against the outer wall of the measuring tube and thus radiate the ultrasonic signal through the wall into the flowing medium.
  • Better signal ⁇ properties can be achieved in embodiments, in which the ultrasonic transducer is in direct contact with the medium.
  • an ultrasonic transducer is installed in an opening of the pipe wall or a pipe socket is welded to the outside of the pipe wall, which receives the ultrasonic transducer.
  • the attachment of a pipe socket has the advantage that the measuring arrangement is associated with a lower production cost.
  • this welded joint must be designed in accordance with the standard EN 13445-3: 2002 for unburnt pressure vessels.
  • this standard stipulates that the face of the nozzle to reduce mechanical stresses in the Sch whoverbin- Rankin- Rankin before welding by reducing the pipe wall thickness in the end area is reduced.
  • the wall thickness should be no more than one millimeter directly at the end face of the pipe end. This is achieved by providing a conical taper at an angle of, for example, 45 ° at the end of the pipe.
  • the invention has for its object to provide a method for welding a pipe end to the outer wall of a carrier, an assembly, which is produced by the method, and an ultrasonic flow meter, with which even a secure, pressure-resistant welded joint is ensured when the tube axis is inclined relative to the vertical on the support surface.
  • the new method for welding a pipe end to the outer wall of a carrier of the type mentioned in the features indicated in the characterizing part of claim 1 features.
  • an arrangement, which is produced by the method, and an ultrasonic flowmeter are described.
  • the invention has the advantage that the welding groove is also easily accessible to a welding torch in the region in which an acute angle is enclosed between the outside of the tube and the carrier surface. As a result, a secure welding into the area, in which the pipe end touches down on the support surface allows. Gaps between the pipe end and the
  • FIG. 1 shows a schematic diagram of an ultrasonic flowmeter
  • Figure 2 is a welded joint.
  • FIG. 1 shows an example of an ultrasonic flowmeter with two ultrasonic transducers 1 and 2, which are each held in a pipe socket 3 or 4, which in turn are fastened to the outer wall of a measuring tube 5 by a welded connection.
  • Ultrasonic transducer 1 an ultrasonic signal according to an arrow 7, which is received by the ultrasonic transducer 2.
  • a device 8 for controlling the ultrasonic transducers 1 and 2 and for evaluating the received signal the transit time of the upstream signal is measured and stored.
  • the ultrasonic transducer 2 sends in the reverse direction according to an arrow 9, an ultrasonic signal downstream, which is received by the ultrasonic transducer 1. Again, the duration is measured in the device 8. Based on the maturities and taking into account the geometric data of the measuring tube 5 and possibly the medium temperature of the volume flow of the medium is calculated by the measuring tube 5 and, for example, over a fieldbus 10 to a parent, not shown for clarity lead station for further processing in an automation system reported.
  • the axis 11 of the pipe socket 3 and the axis 12 of the measuring tube 5 form an angle ⁇ of 40 °. That is, the tube axis 11 of the pipe socket 3 is inclined relative to the vertical on the support surface, namely the outer wall of the measuring tube 5, by 50 °. The result is that in an area 13 between the outside of the pipe socket 3 and the support surface an acute angle is included, which corresponds to the angle ⁇ . In contrast, an obtuse angle forms in an opposite region 14. The end of the pipe socket 3 is welded in the entire peripheral region with the outer wall of the measuring tube 5.
  • a plurality of pairs of ultrasonic transducers can be provided, which correspondingly form a plurality of sound signal paths.
  • an ultrasound pair it is possible for an ultrasound pair to generate a sound path that travels in the plane of the drawing in front of the axis 12 of the measuring tube 5, while another pair of transducers is located behind it in the plane of the drawing and forms a sound path that travels behind the axis 12.
  • measurement errors caused by the airfoil or by a swirl in the flow can be largely eliminated. Due to the resulting offset of the pipe socket relative to the center of the measuring tube 5, the indicated effect of a tapering of the angle between the outside of the pipe socket and the support surface is additionally enhanced.
  • measuring tube 5 and / or pipe socket 3 for example, iron or steel in various designs, in particular stainless steel suitable.
  • the welding Connection between the pipe stub 3 and 4 and the measuring tube 5 can be made with different methods depending on the application. For example, gas metal arc welding (MIG / MAG) or tungsten inert gas welding (TIG) can be considered.
  • MIG / MAG gas metal arc welding
  • TIG tungsten inert gas welding
  • a common wall thickness of the pipe socket 3 and 4 is 5 mm with a diameter of about 35 mm.
  • the diameter of the measuring tube 5 is usually between 100 and 4000 mm. With the new type of welded connection even diameters up to 25 mm can be made possible.
  • FIG. 2 shows the connection of the pipe socket 3 with the measuring tube 5.
  • the same parts are provided with the same reference numerals.
  • the end face 15 of the end of the pipe socket 3 is reduced to avoid mechanical stresses in the welded joint before welding by reducing the pipe wall thickness in the end. This reduction takes place in a region 13 in which between the outside of the pipe socket 3 and the support surface, that is the outer wall of the measuring tube 5, an acute angle is included, in that material is removed from the inside of the pipe socket 3. In this case, an inner edge 16 is formed.
  • material is removed from the outside, for example by a chip-removing process, to reduce the front surface.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'invention concerne un procédé de soudage d'une extrémité de tuyau à la paroi extérieure d'un support, notamment à la paroi extérieure d'un tube de mesure (5) d'un débitmètre à ultrasons, un agencement fabriqué selon ce procédé et un débitmètre à ultrasons. L'axe d'un embout de tuyau (3) est incliné par rapport à la perpendiculaire à la surface du support. Dans une région (13), dans laquelle est formé un angle aigu entre le côté extérieur du tuyau (3) et la surface du support, la face frontale (15) de l'extrémité du tuyau est réduite en enlevant du matériau depuis le côté intérieur du tuyau (3). Ensuite, le point d'assemblage entre le tuyau (3) et le support (5) est soudé depuis l'extérieur par application d'une soudure d'angle (17). Ceci présente l'avantage que la liaison soudée (17) peut être réalisée de manière simple et que les dispositions correspondantes peuvent en même temps être respectées.
PCT/EP2005/012643 2005-11-25 2005-11-25 Procede de soudage d'une extremite de tuyau a la paroi exterieure d'un support par un cote interne reduit de l'extremite du tuyau ; agencement fabrique selon ce procede ; debitmetre a ultrasons WO2007059790A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2005/012643 WO2007059790A1 (fr) 2005-11-25 2005-11-25 Procede de soudage d'une extremite de tuyau a la paroi exterieure d'un support par un cote interne reduit de l'extremite du tuyau ; agencement fabrique selon ce procede ; debitmetre a ultrasons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2005/012643 WO2007059790A1 (fr) 2005-11-25 2005-11-25 Procede de soudage d'une extremite de tuyau a la paroi exterieure d'un support par un cote interne reduit de l'extremite du tuyau ; agencement fabrique selon ce procede ; debitmetre a ultrasons

Publications (1)

Publication Number Publication Date
WO2007059790A1 true WO2007059790A1 (fr) 2007-05-31

Family

ID=36691865

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/012643 WO2007059790A1 (fr) 2005-11-25 2005-11-25 Procede de soudage d'une extremite de tuyau a la paroi exterieure d'un support par un cote interne reduit de l'extremite du tuyau ; agencement fabrique selon ce procede ; debitmetre a ultrasons

Country Status (1)

Country Link
WO (1) WO2007059790A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102689143A (zh) * 2012-06-01 2012-09-26 楚天科技股份有限公司 一种分流管组加工成型方法及分流管组
WO2015036189A1 (fr) * 2013-09-12 2015-03-19 Endress+Hauser Flowtec Ag Tuyau de mesure conçu pour un débitmètre à ultrason et débitmètre à ultrason
DE102016204434A1 (de) 2016-03-17 2017-09-21 Siemens Ag Österreich Verfahren und Vorrichtung für eine sichere Durchflussmessung
DE102017213084A1 (de) 2017-07-28 2019-01-31 Siemens Aktiengesellschaft Verfahren und Vorrichtung für eine sichere Durchflussmessung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61169173A (ja) * 1985-01-21 1986-07-30 Ishikawajima Harima Heavy Ind Co Ltd 分岐管の溶接方法
US4679722A (en) * 1984-12-08 1987-07-14 Klockner Wilhelmsburger GmbH Method and apparatus for welding two pipes along their line of penetration
US4754650A (en) * 1983-07-29 1988-07-05 Panametrics, Inc. Apparatus and methods for measuring fluid flow parameters
US20020104384A1 (en) * 1999-05-17 2002-08-08 Bekkum Jan Aart Van Transmitting and/or receiving head for sonic flowmeters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754650A (en) * 1983-07-29 1988-07-05 Panametrics, Inc. Apparatus and methods for measuring fluid flow parameters
US4679722A (en) * 1984-12-08 1987-07-14 Klockner Wilhelmsburger GmbH Method and apparatus for welding two pipes along their line of penetration
JPS61169173A (ja) * 1985-01-21 1986-07-30 Ishikawajima Harima Heavy Ind Co Ltd 分岐管の溶接方法
US20020104384A1 (en) * 1999-05-17 2002-08-08 Bekkum Jan Aart Van Transmitting and/or receiving head for sonic flowmeters

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 378 (M - 546) 17 December 1986 (1986-12-17) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102689143A (zh) * 2012-06-01 2012-09-26 楚天科技股份有限公司 一种分流管组加工成型方法及分流管组
WO2015036189A1 (fr) * 2013-09-12 2015-03-19 Endress+Hauser Flowtec Ag Tuyau de mesure conçu pour un débitmètre à ultrason et débitmètre à ultrason
US9574926B2 (en) 2013-09-12 2017-02-21 Endress + Hauser Flowtec Ag Measuring tube for a flow measuring device and flow measuring device
DE102016204434A1 (de) 2016-03-17 2017-09-21 Siemens Ag Österreich Verfahren und Vorrichtung für eine sichere Durchflussmessung
DE102017213084A1 (de) 2017-07-28 2019-01-31 Siemens Aktiengesellschaft Verfahren und Vorrichtung für eine sichere Durchflussmessung

Similar Documents

Publication Publication Date Title
EP0088235B1 (fr) Capteur de mesure pour la détermination du débit d'un liquide coulant
WO2014195118A1 (fr) Débitmètre à ultrasons
EP2103911B1 (fr) Mesure de l'écoulement à ultrasons
EP2812659B1 (fr) Débitmètre à ultrasons et procédé destinés à déterminer la vitesse d'écoulement ou encore le débit volumique d'un fluide
DE3149933A1 (de) Schallimpuls-echogeraet
DE102006012114A1 (de) Vorrichtung zur Bestimmung und/oder Überwachung des Volumen- oder des Massedurchflusses eines Mediums in einer Rohrleitung
EP1955019B1 (fr) Dispositif de mesure à ultrasons pour déterminer et/ou surveiller l'écoulement volumique ou massique d'une substance dans une conduite tubulaire
WO2016091477A1 (fr) Débitmètre à ultrasons
DE102010040363A1 (de) Lanze mit Strahldüse zum Entgraten von Werkstücken
DE2138348A1 (de) Vorrichtung zur Messung der Strömung eines Fluidums durch eine Rohrleitung
EP2059771B1 (fr) L'invention concerne un dispositif de mesure du débit volumétrique et du flux de matière d'un fluide dans une canalisation
DE102017110308A1 (de) Ultraschalldurchflussmessgerät
EP2502031A1 (fr) Appareil de mesure
EP3343185B1 (fr) Débitmètre à ultrasons et procédé de mesure du débit
WO2007059790A1 (fr) Procede de soudage d'une extremite de tuyau a la paroi exterieure d'un support par un cote interne reduit de l'extremite du tuyau ; agencement fabrique selon ce procede ; debitmetre a ultrasons
WO2008074742A1 (fr) Dispositif pour mesurer le débit volumétrique ou massique d'un milieu dans une canalisation
DE202009016421U1 (de) Messkapsel zur Durchflussmessung
DE102010063789A1 (de) Ultraschall-Durchflussmessgerät
DE4336369C1 (de) Vorrichtung zur Durchflußmessung
WO1991009279A1 (fr) Dispositif insonorise de retenue de transducteurs ultrasoniques
DE102016115199A1 (de) Ultraschallsensor zur Bestimmung oder Überwachung einer Prozessgröße eines Mediums in der Automatisierungstechnik
DE4341542C2 (de) Durchflussmessvorrichtung
EP0917645B1 (fr) Procede et dispositif de mesure de debit par ultrasons
DE10341422A1 (de) Ultraschallwandleranordnung
DE29715090U1 (de) Durchflußmeßumformer

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 05807592

Country of ref document: EP

Kind code of ref document: A1