(19)
(11)EP 2 625 493 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
27.11.2019 Bulletin 2019/48

(21)Application number: 11767550.4

(22)Date of filing:  27.09.2011
(51)International Patent Classification (IPC): 
G01F 15/14(2006.01)
G01F 25/00(2006.01)
G01F 15/18(2006.01)
G01F 1/66(2006.01)
(86)International application number:
PCT/US2011/053380
(87)International publication number:
WO 2012/047621 (12.04.2012 Gazette  2012/15)

(54)

FLUID METER BODY WITH MODULAR TRANSDUCER HOUSING

DURCHFLÜSSMESSERKÖRPER MIT MODULAREM WANDLERGEHÄUSE

DÉBITMÈTRE COMPORTANT UN BOÎTIER DE TRANSDUCTEUR MODULAIRE


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30)Priority: 07.10.2010 US 899661

(43)Date of publication of application:
14.08.2013 Bulletin 2013/33

(73)Proprietor: Siemens Aktiengesellschaft
80333 München (DE)

(72)Inventors:
  • ROEHRIG, Daniel
    East Islip, New York 11730 (US)
  • WUTHIJAROEN, Joseph
    Stamford, CT 06903 (US)

(74)Representative: Maier, Daniel Oliver et al
Siemens AG Postfach 22 16 34
80506 München
80506 München (DE)


(56)References cited: : 
EP-A1- 2 236 993
US-A- 5 131 278
US-B2- 7 458 279
EP-A1- 2 236 994
US-A- 5 515 733
  
      
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    BACKGROUND OF THE DISCLOSURE


    1. Field of the Invention



    [0001] The present invention relates to fluid flow monitor transducer mounts and housings for mounting a transducer on an exterior surface of a fluid pipe, and particularly to fluid meter body mounts including housings for isolating a transducer mounted therein from the environment.

    2. Description of the Prior Art



    [0002] Typically fluid flow monitoring and other types of transducers are mounted on a pipe circumference with tensioned straps that engage the pipe circumferential surface by friction interference. Pipe straps are relatively difficult to mount about a pipe circumference, especially for relatively larger pipes having diameters greater than 12 inches (270 millimeters). Housings may need to be strapped to pipes in difficult to service locations in service trenches, overhead or behind enclosure walls. Often multiple service technicians are needed to install a transducer strap-type mount. Difficulties do not end upon installation.

    [0003] Strap-type pipe mounts as for example described in documents US 7458279 B2 and US 5131278 require periodic inspection and re-tensioning due to, among other maintenance challenges, the host pipe's thermal cycling, ambient weather temperature cycling and pipe vibration pulsations. As identified above, pipe location and orientation may present difficulties for service technicians to maneuver, and the piping may also be located in hostile environments. Thus it is desirable to minimize effort necessary to mount and service transducers and other types of equipment on piping.

    [0004] Another challenged faced by field service technicians regarding pipe transducer mounts is the need to calibrate precise orientation of transducers relative to the pipe. In the past, such orientation calibration has been performed with the aid of auxiliary measuring instruments, such as scales or vernier calipers, or with alignment templates/jigs. It is desirable to minimize the quantity and complexity of auxiliary instruments and other tools needed for a technician to install and service transducers in the field, as well as installation effort. Again, field piping location and environmental conditions complicate transducer orientation and calibration as they complicate mounting and servicing of housing strapping.

    [0005] Another challenge faced by field service technicians regarding pipe transducer mounts is the need to isolate and seal instrumentation components within the housing from the external environment (e.g., rain, dirt, dust infiltration)reliably for many field applications, and maintain the sealed condition reliably.

    [0006] Thus, a need exists in the art for a transducer external pipe mounting and housing structure that is easy to install and that requires little or no follow-up periodic maintenance or inspection to assure continued proper alignment and tensioning on the pipe.

    [0007] Another need exists in the art for a transducer external pipe mounting and housing structure that minimizes need for transducer orientation and calibration auxiliary tools or instruments during factory or field installation, servicing or replacement of a transducer.

    [0008] Yet another need exists in the art for a transducer external pipe mounting and housing structure that seals the internal components from the environment reliably with minimal service upkeep.

    SUMMARY OF THE INVENTION



    [0009] Accordingly, an object of the invention is to create a transducer external pipe mounting and housing structure that is easy to install and that requires little or no follow-up periodic maintenance or inspection to assure continued proper alignment and tensioning on the pipe.

    [0010] Another object of the present invention is to create a transducer external pipe mounting and housing structure that minimizes need for transducer orientation and calibration auxiliary tools or instruments during factory or field installation, servicing or replacement of a transducer.

    [0011] An additional object of the present invention is to create a transducer external pipe mounting and housing structure that seals internal components from the external environment outside the housing reliably during initial installation, with minimum service upkeep.

    [0012] These and other objects are achieved in accordance with the present invention by an external pipe mount and housing for transducers and the like that is affixed directly to a pipe exterior without the need for circumferential straps according to claim 1. The mount includes bottom mounting bars engaged with mating mounting point tabs affixed to the pipe exterior circumference. The mounting point tabs may be oriented in an array about the pipe circumference for modular reconfiguration for different applications. The bar and tab engagement eliminate the need for housing frequent periodic tensioning and alignment inspection. The bottom mounting bars provide a rigid base for attachment of a transducer and housing enclosure. The housing enclosure desirably may be sealed from the outside environment with sealing gaskets.

    [0013] The transducer housing structure provides for an array of integral transducer alignment point indexing features, and associated mounting hardware that obviate the need for auxiliary alignment instruments and tools. A service technician need only align the transducer with a designated indexing feature and thereafter secure the transducer in the housing. Indexing indicia may be associated with the indexing features in order to assist a service technician with identification of the correct alignment position for any given transducer.

    [0014] The present invention features a fluid meter body, according to claim 1

    [0015] The present invention is also directed to a method for selectively configuring a modular fluid meter body according to claim 14.

    [0016] One or more of the objects, aspects and features of the present invention may be practiced jointly or severally at the discretion of one skilled in the art.

    BRIEF DESCRIPTION OF THE DRAWINGS



    [0017] The teachings of the present invention can be readily understood by considering the following detailed description in conjunction with the accompanying drawings, in which:

    FIG. 1 shows a schematic perspective view of a meter body mounted on a pipe external circumference with a mount and housing of the present invention;

    FIGs. 2 and 3 are perspective views of an exemplary meter body pipe including mounting tabs of the present invention;

    FIGs. 4-6 are exploded perspective views of the transducer mount and housing of the present invention;

    FIGs. 7-9 are schematic perspective views similar to FIG. 1, showing mounting of pluralities 2, 3 and 4 transducer mounts and housings of the present invention about the circumference of a pipe;

    FIG. 10 is a perspective view of the housing of the present invention showing an integral transducer alignment feature of the present invention;

    FIG. 11 is detailed view of FIG. 10, showing exemplary transducer alignment features and related alignment indicia;

    FIG. 12 is a top plan view of FIG. 10;

    FIG. 13 is a side elevational view of FIG. 10; and

    FIG. 14 is a detailed elevational view of exemplary transducer alignment hardware of the present invention.



    [0018] To facilitate understanding, identical reference numerals have been used, where possible, to designate identical elements that are common to the figures.

    DETAILED DESCRIPTION



    [0019] After considering the following description, those skilled in the art will clearly realize that the teachings of the present invention can be readily utilized in mounts and housings for attachment to pipe external surfaces, including for.

    [0020] Referring to FIG. 1, the present invention is shown in a fluid flow meter body 20 including a pipe 30 with flanges 32 that are adapted for serial connection within piping intended to convey and transport fluids; for example a natural gas pipeline. Optionally, a portion of the pipe 30 circumference may be wrapped or otherwise coated with a known sound damping material 33, in order to reduce external noise influence within the pipe interior zone monitored by the meter. The meter body 20 includes a junction box 40 that is intended for remote communications and/or control connection to monitoring and control systems. The meter body 20 also includes a transducer enclosure 60 of the present invention, intended to house one more meter transducers of known construction, capable of acquiring information about properties of fluid conveyed within the pipe 30. The junction box 40 is communicatively coupled to the transducer enclosure 60 by cable 42 and mechanically coupled by cable gland assembly 44. Wiring apertures 46 enable communicative connection of the junction box 40 to known remote communications and/or control devices (not shown). The transducer enclosure 60 or the junction box 40 may also house one or more other communications, control and metering devices.

    [0021] The meter body 20 of the present invention does not mount transducer enclosure 60 to the pipe 30 with commonly utilized adjustable tensioned circumferential straps or by permanent weldments. Rather, as shown in FIGs. 2 and 3, the transducer enclosure 60 is advantageously selectively and directly affixed to the pipe 30 outer circumference, and selectively removable at a later time. In this exemplary embodiment, the pipe 30 outer circumference has integral mounting points for affixation of the enclosure. As shown in FIGs. 2 and 3, exemplary integral mounting points are flat pipe notches 34, to which are permanently attached welded mounting tabs 36 including drilled and tapped holes for receiving male threaded fasteners. Alternatively threaded or unthreaded male bosses can be attached to the pipe 30 outer circumference. Integral mounting points may also comprise integral pedestals formed in place by known casting, swedging, machine cutting or broaching processes. As shown in FIG. 2, a plurality of mounting tabs 36 may be arrayed on the pipe 30 outer circumference to enable selective modular mounting of one or more transducer enclosures 60, as shown in FIGs. 7-9.

    [0022] The structure and attachment of transducer housing 60 to pipe 30 is shown in FIGs. 4-6. Bottom bar 62 is selectively and rigidly affixed to one or more of the pipe mounting tabs 36 with bottom bar fasteners 64 that engage in the female threaded holes 38, with exemplary mounting detail shown in FIG. 6. As shown in FIG. 4, the bottom bar 62 affixes to a plurality of mounting tabs 36. At least one, and preferably two, bottom bars 62 are aligned in parallel axially about the outer circumference of pipe 30 and provide a mounting foundation for other housing and meter components.

    [0023] Side rails 66, 68 form side walls and mounting surface structure for the transducer enclosure 60. The side rails 66, 68 are attached to a corresponding bottom bar 62 by side rail fasteners 70. As shown in FIGs. 4 and 5, the side rail fasteners 70 preferably have sufficient length to project distally from the pipe outer surface through the side rails. Elongated fasteners 70 provide lateral structural load integrity to the housing enclosure 60 side rails and enable easier engagement by a service technician on an outer face of the corresponding side rail. The side rails 66, 68 may be permanently affixed to or integrally formed with the bottom bars 62.

    [0024] End caps 72, 74 complete housing enclosure side walls on the short ends. End cap 74 has an end cap hole 76 for receipt of the cable gland assembly 44. End caps 72, 74 are coupled to the side rails 66, 68 with end cap fasteners 78 and 79. Cover 80 is attached to the enclosure 60 by way of cover fasteners 82 and isolates the enclosure interior from the environment outside the housing. The enclosure 60 may be made more weather resistant by interposing gaskets and/or sealant beads between respective mating components, such as the exemplary pipe surface gasket 84, end cap gaskets 86 and cover gasket 88.

    [0025] One or more of the side rails 66, 68, end caps 72, 74 or cover 80, or any subportions thereof may be permanently affixed to or integrally formed with the bottom bars 62. Alternatively, if full environmental enclosure is not needed for an application, any of the end walls, side walls or cover may be eliminated.

    [0026] The modular construction of the pipe mounting point tabs 36 and the transducer enclosure 60 beneficially allow multiple meter body 20 configurations and applications during initial installation. The rigid, direct attachment of the enclosure 60 to a pipe 30 by way of coupled mating of the bottom bars 62 to the pipe mounting point tabs 36 by the exemplary bottom bar fasteners promotes tight, potentially permanent, affixation without periodic retightening as is often required for installations using known circumferential straps. Conversely, any enclosure 60 may be selectively removed by removal of the bottom bar fasteners 64 or repositioned to another series of mounting tabs 36 arrayed about the pipe 30 without the need to reposition straps or possibly have to compete for circumferential space about the pipe in applications requiring use of multiple strap arrays. See for example the modular meter body 20 configurations shown in FIG. 1 (single transducer enclosure 60), FIG. 7 (double enclosures 60), FIG. 8 (triple enclosures 60), and FIG. 9 (quad enclosures 60).

    [0027] In addition to selective permanent mounting and dismounting modular transducer enclosure 60 configurations of the meter body 20 of the present invention, an individual transducer enclosure 60 enables internal modular configuration of one or a plurality of transducers or other components for different user applications without the need for auxiliary alignment tools, templates, measuring instruments or other devices. Referring to the exemplary embodiments shown in FIGs. 10-14, a plurality of two known flow meter transducers 90 are incorporated in enclosure 60 in selected orientations. Side rail 66 incorporates one or more integral transducer alignment points, optionally with visible indicia. A service technician merely has to identify the appropriate alignment point for a given transducer application and affix the transducer to the enclosure relative to the alignment point.

    [0028] In one embodiment of alignment point of the present invention, side rail 66 incorporates one or more indexing spring pins 92 that project laterally into the enclosure 60 interior and function as an axial positioning alignment stop for a transducer 90. In another alignment point embodiment, side rail 66 has an array of indexing holes 94, with optional indexing indicia 96 (see FIG. 11). L-bracket 98 is aligned with a desired indexing hole 94 and fastened to the side rail 66 with L-bracket fastener 100. The L-bracket 98 functions as an axial alignment stop for its associated transducer 90.

    [0029] The transducers 90 are rigidly affixed in an desired aligned orientation within the transducer enclosure 60 with a laterally oriented transducer mounting clamp 102 that slidably engages in respective grooves 104 in the side rails 66,68. Transducer clamp fastener assembly 106, which may optionally comprise a male threaded stud laterally captured within a hole formed in the transducer clamp 102 engaging in a female aperture defined by the transducer 90, and tightened vertically along the stud axial length by a hex nut tensions the transducer 90 against the pipe 30 circumference. Optionally a foil vibration damping tape 108 may be applied to the lateral sides of the transducer 90, to attempt to isolate vibrations originating from the environment external the pipe interior.

    [0030] As discussed in the Background of the Disclosure, above, past metering applications often required specific orientation and calibration of a transducer relative to the pipe by use of auxiliary orientation tools. In the past, known transducer enclosures had to be aligned on a pipe circumference with measuring instruments, such as scales/rulers or alignment templates. After enclosure affixation, transducers also had to be aligned and oriented within the enclosure with measuring instruments and/or templates. In application of some features of the present invention the need for such auxiliary alignment devices is greatly reduced.


    Claims

    1. A fluid meter body, comprising:

    a pipe (30) for conveyance of fluid, having an exterior circumferential surface;

    a plurality of mounting points (36) integral with the pipe on the external circumferential surface;

    wherein the mounting points (36) comprise one of flat pipe notches (34) to which are permanently attached welded mounting tabs (36), threaded or unthreaded male bosses attached to the pipe (30) outer circumference, or integral pedestals formed in place by casting, swedging, machine cutting or broaching processes;

    a bar (62) aligned axially along the exterior circumferential surface and directly affixed to the mounting points (36) by attachable and detachable coupling devices (64); and

    a housing (60) coupled to the bar (62), for attachment of a fluid meter transducer thereto.


     
    2. The fluid meter body of claim 1, wherein the pipe (30) has an array of a plurality of mounting points.
     
    3. The fluid meter body of claim 2, wherein the mounting points are a plurality of tabs (36) projecting from the pipe (30) exterior circumferential surface and the coupling devices are threaded fasteners (64).
     
    4. The fluid meter body of claim 1, wherein the mounting point is a tab (36) projecting from the pipe exterior circumferential surface and the coupling device is a threaded fastener (64).
     
    5. The fluid meter body of claim 1, further comprising a further bar forming a pair of parallel bars (62) oriented in spaced apart fashion generally axially along the pipe (30) exterior circumference; and
    a pair of side walls of the housing coupled respectively to each respective bar, a pair of end caps (72, 74) of the housing coupling respective ends of each side wall and a removable cover (80) attached to the housing.
     
    6. The fluid meter body of claim 5, wherein at least one of the side walls is integrally formed with its respective bar (62).
     
    7. The fluid meter body of claim 5, further comprising means for sealing the housing (60) from the external environment thereof.
     
    8. The fluid meter body of claim 1, further comprising a side wall coupled to the bar (62).
     
    9. The fluid meter body of claim 8, further comprising a plurality of transducer alignment points (92, 94) defined by and arrayed in the side wall, adapted for orientation and alignment of a transducer (90).
     
    10. The fluid meter body of claim 9, further comprising alignment indicia (96) proximal the transducer alignment points (92, 94), for association of a desired transducer orientation and alignment with an alignment point.
     
    11. The fluid meter body of claim 9, wherein the transducer alignment points are selected from a group consisting of apertures (94) formed in the side wall and projections (92) projecting from the side wall.
     
    12. The fluid meter body of claim 11 further comprising a bracket (98) coupled to an aperture alignment point (94) and projecting from the side wall.
     
    13. The fluid meter body of claim 1, comprising:

    two bars (62) aligned parallel and oriented in a spaced apart fashion axially along the pipe (30) exterior circumference;

    a pair of side walls coupled respectively to each respective bar (30) and defining a pair of opposed, inwardly facing grooves;

    a transducer (90) captured between the side walls; and

    a transducer mounting clamp (102) captured in the grooves and coupled to the transducer.


     
    14. A method for selectively configuring a modular fluid meter body, comprising:

    providing a pipe (30) for conveyance of fluid, having an exterior circumferential surface defining an array of a plurality of mounting points integral with the pipe on the external circumferential surface;

    wherein the mounting points comprise one of flat pipe notches (34) to which are permanently attached welded mounting tabs (36), threaded or unthreaded male bosses attached to the pipe (30) outer circumference, or integral pedestals formed in place by casting, swedging, machine cutting or broaching processes;

    orienting a pair of parallel bars (62) with first mounting points of the array in spaced apart fashion axially along the pipe exterior circumference;

    affixing the bars (62) directly to the first mounting points of the array with attachable and detachable coupling devices;

    coupling a housing (60) to the bars, the housing having a pair of side walls coupled respectively to each respective bar, at least one of the side walls having a plurality of transducer alignment points defined by and arrayed therein, adapted for orientation and alignment of a transducer(90);

    orienting and aligning at least one transducer in the housing with one of the alignment points(92, 94); and

    affixing the at least one transducer in the housing at the alignment point.


     
    15. The method of claim 14 further comprising sealing the housing (60) from the external environment thereof.
     


    Ansprüche

    1. Durchflussmesserkörper, umfassend:

    ein zur Beförderung von Fluid vorgesehenes Rohr (30) mit einer äußeren Umfangsfläche;

    eine Vielzahl von Befestigungspunkten (36), die in das Rohr an der äußeren Umfangsfläche integriert sind;

    wobei die Befestigungspunkte (36) flache Rohraussparungen (34) umfassen, an denen verschweißte Befestigungslaschen (36) dauerhaft angebracht sind, wobei Anschlüsse mit Gewinde oder ohne Gewinde an der äußeren Umfangsfläche des Rohrs (30) angebracht sind oder integrierte Sockel vor Ort mittels Guss-, Verpressungs-, maschinelle Span- oder Räumverfahren ausgebildet sind;

    eine Leiste (62), die axial entlang der äußeren Umfangsfläche ausgerichtet ist und mittels montierbarer und demontierbarer Kopplungsvorrichtungen (64) direkt an den Befestigungspunkten (36) angebracht ist; und

    ein Gehäuse (60), das mit der Leiste (62) gekoppelt ist, um einen Durchflussmesswandler daran anzubringen.


     
    2. Durchflussmesserkörper nach Anspruch 1, wobei das Rohr (30) eine Anordnung mit einer Vielzahl von Befestigungspunkten aufweist.
     
    3. Durchflussmesserkörper nach Anspruch 2, wobei die Befestigungspunkte eine Vielzahl von Laschen (36) sind, die von der äußeren Umfangsfläche des Rohrs (30) hervorstehen, und die Kopplungsvorrichtungen Schraubverbindungen (64) sind.
     
    4. Durchflussmesserkörper nach Anspruch 1, wobei der Befestigungspunkt eine Lasche (36) ist, die von der äußeren Umfangsfläche des Rohrs hervorsteht, und die Kopplungsvorrichtung eine Schraubverbindung (64) ist.
     
    5. Durchflussmesserkörper nach Anspruch 1, weiterhin umfassend eine weitere Leiste, die ein Paar paralleler Leisten (62) bildet, welche räumlich voneinander getrennt im Wesentlichen axial entlang der äußeren Umfangsfläche des Rohrs (30) ausgerichtet sind; und
    zwei Seitenwände des Gehäuses, die jeweils mit der entsprechenden Leiste gekoppelt sind, wobei zwei Endkappen (72, 74) des Gehäuses die entsprechenden Enden jeder Seitenwand verbinden und eine abnehmbare Abdeckung (80) am Gehäuse angebracht ist.
     
    6. Durchflussmesserkörper nach Anspruch 5, wobei mindestens eine der Seitenwände integral mit der jeweiligen Leiste (62) ausgebildet ist.
     
    7. Durchflussmesserkörper nach Anspruch 5, weiterhin umfassend Mittel, um das Gehäuse (60) von der äußeren Umgebung abzudichten.
     
    8. Durchflussmesserkörper nach Anspruch 1, weiterhin umfassend eine mit der Leiste (62) gekoppelte Seitenwand.
     
    9. Durchflussmesserkörper nach Anspruch 8, weiterhin umfassend eine Vielzahl von Messwandler-Ausrichtungspunkten (92, 94), die von der Seitenwand definiert werden und darin angeordnet sind und geeignet sind, einen Messwandler (90) auszurichten und abzugleichen.
     
    10. Durchflussmesserkörper nach Anspruch 9, weiterhin umfassend Ausrichtungsmarkierungen (96) nahe den Messwandler-Ausrichtungspunkten (92, 94), um eine gewünschte Messwandlerausrichtung und -abgleichung einem Ausrichtungspunkt zuzuordnen.
     
    11. Durchflussmesserkörper nach Anspruch 9, wobei die Messwandler-Ausrichtungspunkte ausgewählt sind aus einer Gruppe bestehend aus Öffnungen (94), die in der Seitenwand ausgebildet sind, und Vorsprüngen (92), die aus der Seitenwand hervorstehen.
     
    12. Durchflussmesserkörper nach Anspruch 11, weiterhin umfassend eine Halterung (98), die mit einem Öffnungsausrichtungspunkt (94) gekoppelt ist und aus der Seitenwand hervorsteht.
     
    13. Durchflussmesserkörper nach Anspruch 1, umfassend:

    zwei Leisten (62), die parallel angeordnet und räumlich voneinander getrennt axial entlang der äußeren Umfangsfläche des Rohrs (30) ausgerichtet sind;

    zwei Seitenwände, die jeweils mit der entsprechenden Leiste (30) gekoppelt sind und ein Paar gegenüberliegender, nach innen weisender Vertiefungen definieren;

    einen Messwandler (90), der zwischen den Seitenwänden eingeschlossen ist; und

    eine Messwandler-Befestigungsklemme (102), die in den Vertiefungen eingeschlossen und mit dem Messwandler gekoppelt ist.


     
    14. Verfahren zum selektiven Konfigurieren eines modularen Durchflussmesserkörpers, umfassend:

    Bereitstellen eines zur Beförderung von Fluid vorgesehenen Rohrs (30) mit einer äußeren Umfangsfläche, die eine Anordnung mit einer Vielzahl von Befestigungspunkten definiert, welche in das Rohr an der äußeren Umfangsfläche integriert sind;

    wobei die Befestigungspunkte flache Rohraussparungen (34) umfassen, an denen verschweißte Befestigungslaschen (36) dauerhaft angebracht sind, wobei Anschlüsse mit Gewinde oder ohne Gewinde an der äußeren Umfangsfläche des Rohrs (30) angebracht sind oder integrierte Sockel vor Ort mittels Guss-, Verpressungs-, maschinelle Span- oder Räumverfahren ausgebildet sind;

    Ausrichten von zwei parallelen Leisten (62) mit ersten Befestigungspunkten der Anordnung auf räumlich getrennte Weise axial entlang der äußeren Umfangsfläche des Rohrs;

    Anbringen der Leisten (62) direkt an den ersten Befestigungspunkten der Anordnung mit montierbaren und demontierbaren Kopplungsvorrichtungen;

    Koppeln eines Gehäuses (60) mit den Leisten, wobei das Gehäuse zwei Seitenwände hat, die jeweils mit jeder entsprechenden Leiste gekoppelt sind, wobei mindestens eine der Seitenwände eine Vielzahl von Messwandler-Ausrichtungspunkten aufweist, die von ihr definiert und darin angeordnet sind und dafür ausgelegt sind, einen Messwandler (90) auszurichten und abzugleichen;

    Ausrichten und Abgleichen mindestens eines Messwandlers in dem Gehäuse mit einem der Ausrichtungspunkte (92, 94); und

    Befestigen des mindestens einen Messwandlers in dem Gehäuse an dem Ausrichtungspunkt.


     
    15. Verfahren nach Anspruch 14, weiterhin umfassend das Abdichten des Gehäuses (60) von der äußeren Umgebung.
     


    Revendications

    1. Corps de débitmètre, comprenant :

    un tuyau (30) servant au transport de fluide, possédant une surface circonférentielle extérieure ;

    une pluralité de points de montage (36) faisant partie intégrante du tuyau sur la surface circonférentielle extérieure,

    étant entendu que les points de montage (36) comprennent soit des encoches plates (34) pour tuyaux auxquelles sont attachées en permanence des pattes soudées (36) de montage, soit des protubérances mâles filetées ou non filetées attachées à la circonférence externe du tuyau (30), soit des socles intégrés formés in situ au moyen de procédés de moulage, d'emboutissage, de découpage à la machine ou d'alésage ;

    une barre (62) alignée dans le plan axial le long de la surface circonférentielle extérieure et directement fixée aux points de montage (36) au moyen de dispositifs attachables et détachables (64) de couplage, et

    un boîtier (60) couplé à la barre (62) en vue d'y attacher un transducteur de débitmètre.


     
    2. Corps de débitmètre selon la revendication 1, étant entendu que le tuyau (30) comporte un agencement d'une pluralité de points de montage.
     
    3. Corps de débitmètre selon la revendication 2, étant entendu que les points de montage consistent en une pluralité de pattes (36) saillant de la surface circonférentielle extérieure du tuyau (30) et que les dispositifs de couplage sont des attaches filetées (64).
     
    4. Corps de débitmètre selon la revendication 1, étant entendu que le point de montage est une patte (36) saillant de la surface circonférentielle extérieure du tuyau et que le dispositif de couplage est une attache filetée (64).
     
    5. Corps de débitmètre selon la revendication 1, comprenant par ailleurs une autre barre formant une paire de barres parallèles (62) orientées, de façon espacée l'une par rapport à l'autre, dans un plan globalement axial le long de la circonférence extérieure du tuyau (30), et
    une paire de parois latérales du boîtier couplées, respectivement, à chaque barre respective, une paire de caches (72, 74) d'extrémité du boîtier couplant les extrémités respectives de chaque paroi latérale et un capot amovible (80) attaché au boîtier.
     
    6. Corps de débitmètre selon la revendication 5, étant entendu qu'au moins l'une des parois latérales est formée d'un seul tenant avec sa barre respective (62).
     
    7. Corps de débitmètre selon la revendication 5, comprenant par ailleurs des moyens d'isoler le boîtier (60) de son environnement externe.
     
    8. Corps de débitmètre selon la revendication 1, comprenant par ailleurs une paroi latérale couplée à la barre (62).
     
    9. Corps de débitmètre selon la revendication 8, comprenant par ailleurs une pluralité de points (92, 94) d'alignement de transducteur définis par, et agencés dans, la paroi latérale, adaptés en vue de l'orientation et de l'alignement d'un transducteur (90).
     
    10. Corps de débitmètre selon la revendication 9, comprenant par ailleurs des broches (96) d'alignement à proximité des points (92, 94) d'alignement de transducteur en vue de l'association d'une orientation et d'un alignement voulus du transducteur sur un point d'alignement.
     
    11. Corps de débitmètre selon la revendication 9, étant entendu que les points d'alignement de transducteur sont sélectionnés dans un groupe constitué d'ouvertures (94) formées dans la paroi latérale et de saillies (92) saillant de la paroi latérale.
     
    12. Corps de débitmètre selon la revendication 11 comprenant par ailleurs une bride (98) couplée à un point (94) d'alignement d'ouverture et saillant de la paroi latérale.
     
    13. Corps de débitmètre selon la revendication 1, comprenant :

    deux barres (62) alignées parallèles et orientées, de façon espacée l'une par rapport à l'autre, dans le plan axial le long de la circonférence extérieure du tuyau (30) ;

    une paire de parois latérales couplées, respectivement, à chaque barre (30) respective et définissant une paire de rainures opposées, tournées vers l'intérieur ;

    un transducteur (90) serré entre les parois latérales, et

    un collier (102) de montage de transducteur serré dans les rainures et couplé au transducteur.


     
    14. Procédé de configuration sélective d'un corps modulaire de débitmètre, consistant :

    à mettre à disposition un tuyau (30) servant au transport de fluide, possédant une surface circonférentielle extérieure définissant un agencement d'une pluralité de points de montage intégrés au tuyau sur la surface circonférentielle externe,

    étant entendu que les points de montage comprennent soit des encoches plates (34) pour tuyaux auxquelles sont attachées en permanence des pattes soudées (36) de montage, soit des protubérances mâles filetées ou non filetées attachées à la circonférence externe du tuyau (30), soit des socles intégrés formés in situ au moyen de procédés de moulage, d'emboutissage, de découpage à la machine ou d'alésage ;

    à orienter une paire de barres parallèles (62) sur des premiers points de montage de l'agencement, de façon espacée l'une par rapport à l'autre, dans le plan axial le long de la circonférence extérieure du tuyau ;

    à fixer les barres (62) directement aux premiers points de montage de l'agencement avec des dispositifs de couplage attachables et détachables ;

    à coupler un boîtier (60) aux barres, le boîtier comportant une paire de parois latérales couplées, respectivement, à chaque barre respective, au moins l'une des parois présentant une pluralité de points d'alignement de transducteur y définis et y agencés, adaptés en vue de l'orientation et de l'alignement d'un transducteur (90) ;

    à orienter et à aligner au moins un transducteur dans le boîtier sur l'un des points (92, 94) d'alignement, et

    à fixer l'au moins un transducteur dans le boîtier au niveau du point d'alignement.


     
    15. Procédé selon la revendication 14 consistant par ailleurs à isoler le boîtier (60) de son environnement externe.
     




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    Cited references

    REFERENCES CITED IN THE DESCRIPTION



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    Patent documents cited in the description