• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a mounting device (5) for an ultrasonic transducer (9) adapted for mounting said transducer through a wall of a flowmeter (1) comprising a pipe (2) inside the which circulates a fluid (19), said device comprising a body (6) opening on an inner surface (16) of said pipe along a contour line (14) forming an interface between said inner surface of the pipe and a surface, said active surface (15) of the body of the device, characterized in that the active surface is such that any straight line, orthogonal to the contour line and tangential to the inner surface of the pipe at a point of the contour line is also tangent to the active surface of the device at this point. The invention also relates to a flow meter using such a mounting device.
    公开号:FR3047068A1
    申请号:FR1650565
    申请日:2016-01-25
    公开日:2017-07-28
    发明作者:Alain Ramond；Mathieu Poque
    申请人:Yzatec SAS；
    IPC主号:
    专利说明:

    The invention relates to a device for mounting an ultrasonic transducer, and more particularly to such a device adapted to mount said transducer in a pipe of a flowmeter. . The invention also relates to flow meters equipped with such mounting devices.
    There are many categories of ultrasonic flow meters, in which the flow rate of a fluid is measured by the ultrasonic propagation velocity in the fluid medium flowing in a pipe.
    The present invention applies to flow meters in which the transducer or at least its mounting device passes through the wall of the pipe to come into contact with the fluid whose flow rate is to be measured, as opposed to the flow meters in which the transducers and / or their mounting device is installed outside the pipe and whose measurement is performed by transmitting waves through the walls thereof.
    Document US Pat. No. 5,531,124, in particular FIGS. 9 and 10, discloses an ultrasonic flowmeter in which the transducers are mounted opposite one another in holes diagonally drilled in the wall of the pipe. However, besides the cost and difficulty of performing such diagonal drilling with the required accuracy, particularly in a material such as stainless steel, the positioning of the transducer, with or without a mounting device, has many disadvantages. Indeed, if the transducer is inserted into the hole without overflowing inside the pipe, it is formed because of the inclination, a cavity in front of the transducer which is the seat of turbulence and / or stagnation zones of the fluid that disturbs the measurement and can generate fouling in front of the transducers. No. 5,531,124 also proposes to fill this cavity by means of a resin plug having an ultrasonic permeability similar to that of the fluid to be measured. However, such a plug causes attenuation of the signal that it is necessary to compensate. In addition, the face in contact with the fluid is inclined with respect to the measurement axis, which can lead to other measurement errors, for example due to refraction phenomena. In addition, such a plug is difficult to produce so that it has no overshoot or no withdrawal in the fluid passage.
    Document US Pat. No. 3,817,098 also discloses a flowmeter, more particularly adapted to the precise measurement of low flow rates, which has two transducers facing each other along a longitudinal axis of a pipe, each transducer being placed in a plenum chamber at each end of the pipe portion in which the measurement takes place. However, the realization of such plenums, as well as the installation of the transducers vis-à-vis presents many difficulties, for example related to the machining of the rooms. The invention therefore aims to provide a device for mounting an ultrasonic transducer which allows easy mounting of the transducer while minimizing any disturbances of the fluid flow. The invention also relates to such a mounting device that allows to control the geometry of the environment of the transducer to manage the flow conditions of the fluid around it. The invention is also directed to such a mounting device that minimizes the angular adjustments necessary to ensure that the transducers are properly aligned. The invention further aims at such a mounting device to achieve internal shapes of the pipeline difficult to obtain otherwise. The invention also aims at such a mounting device that allows to withstand high pressures in the measurement fluid. The invention also relates to such a mounting device which allows easy machining mounting holes of the device on the wall of the pipe, despite the possible presence of obstacles such as connecting flanges of the pipe. The invention also aims at such a mounting device allowing substantial material savings and machining of the flowmeter.
    To this end, the invention relates to a device for mounting an ultrasonic transducer adapted for mounting said transducer through a wall of a flowmeter comprising a pipe inside which a fluid circulates, said device comprising a body opening on an inner surface of said pipe along a contour line forming an interface between said inner surface of the pipe and a surface, said active surface, of the body of the device, characterized in that the active surface is such that any straight line , orthogonal to the contour line and tangent to the inner surface of the pipe at a point of the contour line is also tangent to the active surface of the device at that point.
    With this arrangement, there is continuity between the inner surface of the pipe and the mounting device, at least in the vicinity of the interface between the pipe and the mounting device. This interface is thus perfectly smooth and has no roughness and / or no setback likely to generate turbulence or stagnant areas in the fluid flow. The device according to the invention thus allows continuity of shape between the pipe and the transducer mounting device, regardless of the shape of said device in the vicinity of the portion directly in contact with the transducer. Thus, even if the mounting device may have a depression or a projection in the immediate vicinity of the transducer, the transition between the inner surface of the pipe and the active surface of the mounting device in contact with the fluid does not generate a disturbance. Therefore, the size of the active surface of the mounting device can be relatively large which in fact minimizes the amount of material, usually brass or stainless steel used for the walls of the pipe.
    Advantageously and according to a first embodiment of the invention, the mounting device is adapted to orient a direction of transmission / reception of the transducer in a diagonal direction, called measurement direction, forming a predetermined angle with a longitudinal axis of the channeling in a longitudinal plane of symmetry thereof. This embodiment is particularly suitable for producing flowmeters comprising two transducers facing each other along a diagonal of the pipe for a direct flow measurement. It can also be used for flow meters in which the measurement is carried out by reflection of the ultrasonic waves on an inner surface of the pipe, for example along a path V or W.
    Advantageously and according to the invention, the active surface of the body of the device comprises a central recess having a concavity oriented towards the longitudinal axis of the pipe, said recess having a flat face, said active face, normal to said measurement direction. Thus, the emission and / or the reception of the ultrasonic waves is carried out directly in the measuring direction, without disturbances related to any drilling angle errors affecting the angle of incidence of the waves.
    Advantageously and according to the invention, said active face of the central recess is connected to the contour line of the active surface by surfaces free from sharp edges. By connecting the active side of the niche by rounded surfaces, connection fillet instead of sharp corners, etc. until the interface between the active surface and the inner surface of the pipe, the path of the fluid flow lines is not disturbed and allows a laminar flow, without stagnation zones of the fluid.
    Alternatively or in combination, and still according to the invention, the active surface comprises, in the vicinity of said active face, reliefs adapted to modify a fluid flow. Thus, the presence of longitudinal striations or fin shapes placed at the connection of the active face with the active surface upstream of the active face, in the fluid flow, can help regulate this flow in particularly turbulent regimes.
    Advantageously and according to the invention, the body of the device further comprises an open housing having a concavity oriented opposite the longitudinal axis of the pipe and a flat face, said support face, parallel to the active face, adapted to form a bearing surface of the ultrasonic transducer. Thanks to this housing and the bearing surface it has, it is easy to place the ultrasonic transducer away from the fluid on the one hand and in an optimal position for the emission and / or reception of ultrasonic waves. In addition, when the body of the mounting device is made of injected synthetic material, the wall thickness between the bearing face and the active face can be optimized to match the wavelength of the ultrasound and to minimize possible attenuation of the waves.
    Advantageously and according to the invention, the mounting device further comprises a shutter, adapted to cooperate with said housing to press the ultrasonic transducer against the bearing face. This shutter may comprise a flat face, parallel to the bearing surface of the housing, adapted to exert pressure on the transducer when the shutter is fixed in the housing. In addition, the shutter may include one or more cells provided with conductive contacts adapted to be connected to the terminals of the transducer on the one hand and serve as connection pins to an external electronic device.
    Advantageously and according to the invention, the mounting device is adapted to be mounted in the pipe in a direction orthogonal to a longitudinal axis thereof. Since the orientation of the transducer can be fixed by the body of the mounting device, it is possible and advantageous to arrange the mounting device so that it can be introduced radially into the pipe and fixed thereon, without the need to perform an oblique drilling on the pipe. As a result, the machining constraints of the pipe are reduced and the cost is reduced. In addition, the accuracy of the position of the transducer is improved.
    Advantageously and according to the invention, the mounting device further comprises a flange adapted to fix the body on said pipe, said flange comprising facing the body a projection in the form of a stirrup adapted to cooperate with a conjugate form of the body to stiffen this last. The projection in the form of a stirrup of the flange is housed in a complementary shape formed in the body of the mounting device and makes it possible to strengthen the body in order to be able to accept fluids under high pressure without deformation. The invention also extends to an ultrasonic flowmeter, of the type comprising a pipe for measuring the flow of a fluid and at least two ultrasonic transducers mounted opposite one another through a wall of said pipe, in the same longitudinal plane of symmetry of the pipeline, said transducers being oriented in a measurement direction forming a non-zero angle and less than 90 ° with the longitudinal axis of the pipe, characterized in that each transducer is installed in a mounting device having any of the above features.
    Advantageously and according to a second embodiment of the invention, the mounting device is adapted to be mounted on a flowmeter comprising a pipe having a plenum chamber at each end thereof, each chamber having an ultrasonic transducer mounted in vis-à-vis the transducer of the other chamber along a longitudinal axis of said pipe. The mounting device is arranged such that the transducer associated with each device is vis-à-vis the other transducer, in the axis of the fluid flow when the mounting device is installed in the flow meter.
    Advantageously and according to the invention, the active surface of the body of the device forms at least a portion of the wall of the plenum. Thus, regardless of the shape of the plenum, the body of the mounting device forms a plug closing an orifice of the chamber through which the transducer is introduced, this plug having a continuity of shape with the plenum, at least around the contour line of the interface between the cap and the chamber.
    Advantageously and according to the invention, the active surface of the body of the device forms a cap whose contour line is at least partially comprised in a plane of symmetry of the plenum passing through the axis of the pipe. Thus, whether the plenum chamber is spherical, barrel-shaped or in the form of two cones connected by their large base by a cylinder of revolution, the hollow shape of the chamber can be made in two parts, of shape and size. substantially identical and complementary, which simplifies the machining and / or molding of such shapes, or even to make them possible.
    Advantageously and according to the invention, the mounting device further comprises a hollow envelope at least substantially cylindrical, said plunger, extending radially projecting from the active surface of the body in the direction of the longitudinal axis of the pipe and of a length adapted to cut this axis. The plunger thus makes it possible to install the ultrasonic transducer inside the casing, on the longitudinal axis of the duct, facing another transducer installed in a symmetrical mounting device in the opposite plenum.
    Advantageously and according to the invention, the plunger comprises, at least on an inner face of the hollow envelope, a flat orthogonal to the longitudinal axis of the pipe, adapted to form a bearing wall for the ultrasonic transducer. Thus, the transducer may be mounted within the plunger in a predetermined orientation and be connected by electrical connections to the outside of the plenum. The invention also extends to an ultrasonic flowmeter, of the type comprising a pipe for measuring the flow of a fluid, said pipe having a plenum chamber at each end, each chamber having an ultrasonic transducer mounted in a screw-in position. -vis the transducer of the other chamber along a longitudinal axis of said pipe characterized in that each transducer is installed in a mounting device according to any of the characteristics of the second embodiment of the invention. The invention also relates to a device for mounting an ultrasound transducer and an ultrasonic flowmeter characterized in combination by all or some of the characteristics mentioned above or below. Other objects, features and advantages of the invention will become apparent from the following description and the accompanying drawings in which: - Figure 1 is a longitudinal sectional view of a flow meter according to a first embodiment of the invention; FIG. 2 is a longitudinal sectional view of a mounting device according to the first embodiment of the invention, FIG. 3 is a cross-sectional view of a mounting device and a flowmeter. along line AA of FIG. 1; FIG. 4 is a perspective view of the lower face of a flange of a mounting device according to the first embodiment of the invention; FIG. in section of a flowmeter according to the second embodiment of the invention, equipped with suitable mounting devices, - Figure 6 is a perspective view of a mounting device according to the second embodiment of the invention.
    FIG. 1 represents, in longitudinal section, a flowmeter 1 comprising a tube 3 forming a pipe 2 in which a fluid, the flow rate of which is to be measured, circulates. In the example shown, the pipe 2 is cylindrical in revolution and has a longitudinal axis 4. The pipe 3 comprises two plates 20 (FIG. 3) molded or machined on the pipe, diametrically opposite with respect thereto and spaced apart. the other along the longitudinal axis of the pipeline. Each plate 20 has an orifice opening into the pipe 2. A mounting device 5 of an ultrasonic transducer 9 is installed in the orifice of each plate 20 and fixed on the tube 3.
    The mounting device 5, illustrated in more detail in FIGS. 2 and 3, comprises a body 6, preferably molded of synthetic material, for example polyetherimide (PEI) for its temperature stability, the shape of which is at least partially conjugated. that of the orifice to be fixed on it. Once installed in the orifice, the body 6 has a surface, said active surface 15, in contact with the fluid 19 flowing in the pipe. The delimitation between the inner surface 16 of the pipe and the active surface 15 of the body 6 is made along a line, called the contour line 14.
    According to the invention, to avoid disturbances of the fluid 19 at the interface between the inner surface 16 of the pipe and the active surface 15 of the body 6 of the mounting device, these two surfaces are in continuity one of the other at least in the vicinity of the contour line 14. Thus, the active surface 15 is such that any tangent to the inner surface 16 of the pipe along the contour line 14 and orthogonal thereto is also tangent to the active surface 15. In this way, the interface between the two surfaces is perfectly smooth and can not generate recesses of fluid threads, turbulence or areas of stagnation of the fluid. For example, for a cylindrical pipe, the active surface of the body of the mounting device 5 is also cylindrical and of the same radius, at least in the vicinity of the contour line as shown in FIG.
    In a flowmeter 1 as illustrated in FIG. 1, two ultrasonic transducers 9 are installed facing each other in the pipe 2 in a measuring direction 12 forming a predetermined angle that is non-zero and less than 90.degree. longitudinal axis 4 in a longitudinal plane of symmetry of the pipe. Preferably, the angle between the measuring direction 12 and the longitudinal axis 4 of the pipe is of the order of 30 ° but can be up to 50 ° or more depending on the flowmeter models.
    Each transducer 9 is formed of a plate of piezoelectric material comprising two electrodes and protected by an outer coating of synthetic material of parallelepipedal shape very flattened. The main faces of the transducer are orthogonal to the direction of transmission / reception of ultrasonic waves. Each transducer 9 is mounted in a mounting device 5, passing through the tube 3 and opening into the pipe 2. The mounting devices 5 are placed on either side of the tube 3, so that the transducers 9 are placed vis-à-vis and that their respective transmission / reception direction coincides with the measurement direction 12.
    To orient the transducer 9 in the measurement direction, the body 6 has on its active surface 15 a central recess 10 whose concavity is oriented towards the inside of the pipe 2, that is to say in the direction of the longitudinal axis 4. This niche 10 comprises at least one flat face, said active face 11, orthogonal to the measurement direction 12. The other walls of the niche 10 may have any shape provided that these walls do not interfere with the ultrasonic waves. For example, the niche 10 comprises, as illustrated in detail in FIG. 2, an upper face parallel to the measuring direction 12 and two lateral faces parallel to the longitudinal plane of symmetry of the pipe containing the measuring direction 12.
    In order to prevent the niche 10 from forming a source of disturbances of the fluid flow or stagnation zones thereof, all the faces of the niche 10 are connected to each other and to the active surface 15 by surfaces which are free of sharp edges. For example, all the flat surfaces are connected together by fills of sufficient radius not to create turbulence in the fluid streams. For example, for a niche 10 to 15 mm deep, the fillet radius is of the order of 0.5 to 1 mm.
    However, in some cases, the fluid flow can vary very significantly, resulting in transitions between various regimes, for example from a laminar regime to a turbulent regime as a function of the fluid flow. It is then useful to provide certain reliefs at predetermined locations of the active surface 15, for example in the vicinity of the active face 11, in order to manage the disturbances related to these changes in regime. Thus, striations parallel to the direction of the fluid flow may be formed at the junction between the active face 11 and the active surface 15 upstream of the active face relative to the fluid flow, in order to regularize the direction fluid streams. Other geometric shapes, for example fins, may be employed at various locations on the active surface to correct anomalies in the fluid flow under certain regimes. These shapes can advantageously be formed during the molding of the body 6. Opposite the recess 10, the body 6 comprises a housing 23, open towards the outside, that is to say whose concavity is oriented opposite of the axis 4. This housing comprises a flat face said bearing surface 21 parallel to the active face 11 of the recess 10 and delimiting with it a partition 24 on which the transducer 9 is fixed. The housing 23 receives a shutter 8 of shape adapted to substantially fill the housing 23, the shutter 8 having a face coming to press the transducer 9 on the bearing surface 21. The shutter 8 is fixed in the housing 23 of the body 6 by any suitable fastening means, for example by screwing, latching, welding, gluing or riveting. The shutter 8 is made of synthetic material, preferably identical or compatible with that of the body 6, and has one or more cells 22 adapted to receive electrical contact means with the transducer 9, such as connector pins 18 which pass through. the shutter and come into contact with the transducer pins 9.
    The body 6 further comprises a flange 25 adapted to bear on the plate 20 all around the orifice formed in this plate. The flange 25 comprises on its periphery a groove adapted to receive a seal 26 between the rim 25 and the plate 20.
    Advantageously, the orientation of the transducer 9 in the measurement direction 12 is ensured by the inclination of the partition 24 and the bearing faces 21 and active 11. Therefore, it is possible to choose to insert the mounting device 5 and therefore the body 6 in the tube 3 in any direction. Preferably, the mounting device 5 is adapted to be mounted on the tube 3 in a direction radial relative thereto, that is to say orthogonally to the longitudinal axis 4. Therefore, the rim 25 and the tray 20 may be parallel and orthogonal to the mounting direction which simplifies the machining of the mounting hole in the tube 3 and the assembly operations.
    The mounting device 5 finally comprises a flange 7 for fixing the body 6 on the plate 20 by means of screws (not shown) passing through bores 13. The flange 7 has a central lumen allowing the passage of the upper part of the body 6 so that the shutter 8 and the connections 18 are accessible from the outside once the mounting device 5 is in position on the tube 3. FIG. 4 represents a bottom view in perspective of the flange 7 showing the presence of a stirrup 17 projecting from the lower face of the flange 7 and adapted to cooperate with a conjugate profile formed in the body 6 in order to facilitate the orientation thereof in the axis of the tube 3 and to reinforce the rigidity of the body 6, particularly in the case where the fluid flowing in the pipe is under high pressure. The flange 7 can be made of synthetic material, optionally loaded with glass or carbon fibers to improve the rigidity or even metal, preferably stainless steel. Of course, the flange 7 may also be integral with the body 6, for example molded simultaneously in one piece.
    Referring now to Figures 5 and 6 which illustrate a second embodiment of a flow meter according to the invention. The flow meter 30 is in the general form of a tube 33 terminated at both ends by threaded connections 43. Between the connectors 43, the pipe 32 is traversed by a fluid 34 and comprises three tubular sections separated by two chambers 31 of tranquilization located on either side of the central tubular section. Two ultrasonic transducers 39 are placed facing each other, on either side of the central tubular section, on a longitudinal axis 44 of the pipe 32, inside the chambers 31.
    In the example shown, each chamber 31 has a profile in the form of two truncated cones separated by a cylinder section, these three parts being coaxial with each other and with the longitudinal axis 44 of the tubular sections. The small base of each truncated cone has a diameter equal to the diameter of the pipe and the large base of each truncated cone has a diameter equal to that of the cylinder section. Such a form of channeling would be very difficult, if not impossible to obtain without providing a removable part. It is the same for example for a spherical or quasi-spherical chamber.
    In order to facilitate or even make possible the production of a flowmeter of this type, each chamber 31 is formed in two parts, a first part obtained from the tube 33 and a second part formed from the body 40 of a device The two parts of the chamber 31 meet in a contour line 36. In order to minimize the generation of turbulence in the flow of the fluid 34 in the vicinity of this contour line, the internal surface of the part of the chamber 31 from the tube 33 and the surface, said active surface 38 of the part of the chamber from the mounting device 35, in contact with the fluid are such that along the contour line 36, a line tangent to one of the surfaces orthogonal to the contour line is also tangent to the other surface. Thus, the active surface 38 of the mounting device 35 forms a surface continuity with the tube 33 to form the plenum.
    Preferably, in the chamber 31, the active surface 38 forms a symmetrical cap of the inner surface of the tube 33 and the contour line 36 belongs at least in part to the plane of symmetry passing through the longitudinal axis 44 of the pipe 32. The plenum chamber 31 is thus formed of two half-shells of substantially identical size.
    The mounting device 35 also comprises a hollow envelope, called plunger 37, of generally cylindrical shape and of axis orthogonal to the longitudinal axis 44 of the pipe. This plunger 37 has an axial opening towards the outside of the pipe 32 adapted to allow the insertion and the fixing of a transducer 39 so that the direction of transmission / reception of this transducer coincides with the longitudinal axis of the pipeline. To this end, the plunger 37 comprises, at least on its inner surface, a flat 41 orthogonal to the longitudinal axis of the pipe. Preferably, the flat 41 is formed on the inner and outer surfaces of the plunger. The transducer 39 can then be fixed, for example by gluing, on the inner face of the flat part 41, away from the fluid. The interior of the plunger can then be closed by pouring a resin. Alternatively, the transducer 39 can be fixed on a shutter (not shown) of shape conjugate to that of the inside of the plunger, this shutter then being inserted into the plunger 37.
    The body 40 of the mounting device 35 has a substantially cylindrical outer surface, of axis orthogonal to the longitudinal axis 44 of the pipe and of diameter adapted to cooperate with a mounting hole formed in the tube 33. It is thus possible to radially insert the mounting device 35 into the tube 32.
    The body 40 is further surmounted by a flange 42 adapted to fix the mounting device 35 on the tube 32. The flange 42 comprises, at the periphery of the body 40 a groove 45 adapted to receive a seal.
    Advantageously, the mounting device 35 is made in one piece by molding plastic, which allows a precise and particularly economical manufacturing.
    The flow meter 30 may thus consist of a tube 33 and two identical mounting devices 35, each equipped with a transducer 39 and mounted facing each other on either side of a central tubular section of the channeling, each mounting device 35 completing the tube 33 to form a plenum 31.
    Of course, this description is given by way of illustrative example only and the person skilled in the art may make numerous modifications without departing from the scope of the invention, as for example, in the first embodiment, replace the niche 10 by a projection in the fluid flow or provide to mount the transducer 9 in a projection on the active face 11, this projection remaining in the volume of the niche 10, or, in the second embodiment, provide to mold the two mounting devices 35 in one piece.
    权利要求:
    Claims (16)
    [1" id="c-fr-0001]
    1 / - Mounting device (5, 35) of an ultrasonic transducer (9, 39) adapted for mounting said transducer through a wall of a flow meter (1.30) having a pipe (2, 32) inside which a fluid (19, 34) circulates, said device comprising a body (6, 40) opening on an inner surface (16, 46) of said pipe along a contour line (14, 36) forming an interface between said inner surface of the pipe and a surface, said active surface (15, 38), of the body of the device, characterized in that the active surface is such that any straight line, orthogonal to the contour line and tangent to the inner surface of the pipe at a point of the contour line is also tangent to the active surface of the device at this point.
    [0002]
    2 / - Device according to claim 1, characterized in that it is adapted to orient a direction of transmission / reception of the transducer (9) in a diagonal direction, said measurement direction (12), forming a predetermined angle with a longitudinal axis (4) of the pipe (2) in a longitudinal plane of symmetry thereof.
    [0003]
    3 / - Device according to claim 2, characterized in that the active surface (15) of the body (6) of the device comprises a central recess (10) having a concavity oriented towards the longitudinal axis (4) of the pipe, said niche having a flat face, said active face (11), orthogonal to said measurement direction (12).
    [0004]
    4 / - Device according to claim 3, characterized in that said active face (11) of the central recess (10) is connected to the contour line (14) of the active surface (15) by surfaces without edges bright.
    [0005]
    5 / - Device according to any one of claims 3 to 4 characterized in that the active surface comprises, in the vicinity of said active face, reliefs adapted to modify a flow of the fluid.
    [0006]
    6 / - Device according to any one of claims 3 to 5 characterized in that the body (6) of the device further comprises an open housing (23) having a concavity oriented away from the longitudinal axis (4) the pipe (2) and a flat face, said bearing surface (21), parallel to the active face (11), adapted to form a bearing surface of the ultrasonic transducer (9).
    [0007]
    7 / - Device according to claim 6, characterized in that it further comprises a shutter (8), adapted to cooperate with said housing (23) to press the ultrasonic transducer (9) against the bearing face ( 21).
    [0008]
    8 / - Device according to any one of claims 2 to 7, characterized in that the device (5) is adapted to be mounted in the pipe (2) in a direction orthogonal to a longitudinal axis (4) thereof .
    [0009]
    9 / - Device according to any one of claims 2 to 8, characterized in that it further comprises a flange (7) adapted to fix the body (6) on said pipe (2), said flange having opposite the body a projection in the form of stirrup (17) adapted to cooperate with a conjugate form of the body to stiffen the latter.
    [0010]
    10 / - ultrasonic flow meter (1), of the type comprising a pipe (2) for measuring the flow of a fluid (19) and at least two ultrasonic transducers (9) mounted facing each other at through a wall of said pipe, in the same longitudinal plane of symmetry of the pipeline, said transducers being oriented in a measuring direction (12) forming a non-zero angle and less than 90 ° with a longitudinal axis (4) of the pipe, characterized in that each transducer (9) is installed in a mounting device (5) according to any one of claims 1 to 9.
    [0011]
    11 / - Device according to claim 1, characterized in that it is adapted to be mounted on a flowmeter (30) having a pipe (32) having a chamber (31) of tranquilization at each end thereof, each chamber comprising an ultrasonic transducer (39) mounted opposite the transducer of the other chamber along a longitudinal axis (44) of said pipe.
    [0012]
    12 / - Device according to claim 11, characterized in that the active surface (38) of the body (40) of the device (35) forms at least a portion of the wall of the chamber (31) of tranquilization.
    [0013]
    13 / - Device according to claim 12, characterized in that the active surface (38) of the body (40) of the device forms a cap whose contour line (36) is at least partially within a plane of symmetry of the chamber (31) of tranquilization passing through the axis (44) of the pipe (32).
    [0014]
    14 / - Device according to any one of claims 12 or 13, characterized in that it further comprises a hollow shell at least substantially cylindrical, said plunger (37), extending radially projecting from the active surface (38). ) of the body (40) towards the longitudinal axis (44) of the pipe (32) and a length adapted to cut this axis.
    [0015]
    15 / - Device according to claim 14, characterized in that the plunger (37) comprises, at least on an inner face of the hollow envelope, a flat portion (41) orthogonal to the longitudinal axis (44) of the pipe ( 32) adapted to form a bearing wall for the ultrasonic transducer (39).
    [0016]
    16 / - ultrasonic flow meter (30), of the type comprising a pipe (32) for measuring the flow of a fluid, said pipe having a chamber (31) of tranquilization at each end, each chamber having a transducer (39) to ultrasound mounted opposite the transducer of the other chamber along a longitudinal axis (44) of said pipe characterized in that each transducer (39) is installed in a mounting device (35) according to any one of claims 11 to 15.
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    CN108603776A|2018-09-28|
    CN108603776B|2020-12-11|
    WO2017129888A1|2017-08-03|
    US20190033106A1|2019-01-31|
    FR3047068B1|2019-07-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5905207A|1996-04-04|1999-05-18|Georg Fischer Rohrleitungssysteme Ag|Process for measuring the flow rate of a fluid|
    EP2333495A1|2009-11-25|2011-06-15|Kamstrup A/S|Ultrasonic consumption flow meter with connection piece|WO2019109113A1|2017-12-03|2019-06-06|Eugene Fourie|A flowmeter|
    WO2021255397A1|2020-06-19|2021-12-23|Integra Metering Sas|Flow meter and assembly method therefor|
    WO2021255398A1|2020-06-19|2021-12-23|Integra Metering Sas|Flow meter and assembly method therefor|US3817098A|1972-08-09|1974-06-18|Saratoga Systems|Axial fluid flow and sound speed|
    DE3020282C2|1980-05-28|1985-08-08|Siemens AG, 1000 Berlin und 8000 München|Ultrasonic flow meter|
    GB2101318A|1981-05-29|1983-01-12|Itt|Ultrasonic flowmeter|
    US4754650A|1983-07-29|1988-07-05|Panametrics, Inc.|Apparatus and methods for measuring fluid flow parameters|
    KR960013251B1|1993-08-25|1996-10-02|주식회사 창민물산|Flow metter|
    WO2014029404A1|2012-08-22|2014-02-27|Miitors Aps|A compact ultrasonic flow meter|JP6894863B2|2018-03-14|2021-06-30|株式会社キーエンス|Clamp-on type ultrasonic flow sensor|
    DE102019009033A1|2019-12-31|2021-07-01|Marquardt Gmbh|Unit for a fluid line|
    法律状态:
    2017-01-23| PLFP| Fee payment|Year of fee payment: 2 |
    2017-07-28| PLSC| Publication of the preliminary search report|Effective date: 20170728 |
    2018-01-23| PLFP| Fee payment|Year of fee payment: 3 |
    2018-06-22| CD| Change of name or company name|Owner name: INTEGRA METERING SAS, FR Effective date: 20180517 |
    2020-01-21| PLFP| Fee payment|Year of fee payment: 5 |
    2021-01-21| PLFP| Fee payment|Year of fee payment: 6 |
    2022-01-19| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1650565A|FR3047068B1|2016-01-25|2016-01-25|DEVICE FOR MOUNTING AN ULTRASOUND TRANSDUCER AND FLOW METER EQUIPPED WITH SUCH A DEVICE|
    FR1650565|2016-01-25|FR1650565A| FR3047068B1|2016-01-25|2016-01-25|DEVICE FOR MOUNTING AN ULTRASOUND TRANSDUCER AND FLOW METER EQUIPPED WITH SUCH A DEVICE|
    ES17706284T| ES2770095T3|2016-01-25|2017-01-24|Mounting device for an ultrasound transducer and flow meter equipped with said device|
    PCT/FR2017/050143| WO2017129888A1|2016-01-25|2017-01-24|Device for mounting an ultrasonic transducer, and flow meter provided with a device of this kind|
    CN201780008117.6A| CN108603776B|2016-01-25|2017-01-24|Assembly device for assembling an ultrasonic transducer and flowmeter equipped with such a device|
    EP17706284.1A| EP3408622B1|2016-01-25|2017-01-24|Device for mounting an ultrasonic transducer, and flow meter provided with a device of this kind|
    US16/072,419| US10704940B2|2016-01-25|2017-01-24|Body for mounting ultrasonic transducer in a flowmeter piping through an opening according to a contour line to prevent turbulences|
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