• 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:
    invention patent: "coriolis type mass flow meter". the present invention relates to a coriolis-type mass flow meter (1), with at least four curved measuring tubes (2a, 2b, 2c, 2d), at least one actuator arrangement, and at least one sensor arrangement , with a first measuring tube (2a) and a second measuring tube (2b) being in a common first plane (e¹), a third measuring tube (2c), and a fourth measuring tube (2d) ), in a common second plane (e²), with the first plane (e¹) and the second plane (e²) passing in parallel with each other, and all four measuring tubes (2a, 2b, 2c, 2d), on the inlet and outlet side are combined in terms of flow technique with a collector (3). a coriolis mass flow meter for large flow quantities, which is improved with respect to its measurement accuracy, is performed so that the geometry and / or surface characteristics of the measuring tubes (2a, 2b, 2c, 2d) are chosen in such a way that the tube resistance of all four measuring tubes (2a, 2b, 2c, 2d) is identical for a current.
    公开号:BR102012001827B1
    申请号:R102012001827-6
    申请日:2012-01-26
    公开日:2020-02-11
    发明作者:Yousif Hussain；Tao Wang
    申请人:Krohne Ag；
    IPC主号:
    专利说明:

    Descriptive Report of the Invention Patent for MASSIVE FLOW METER TYPE CORIOLIS.
    [0001] The present invention relates to a mass flow meter type Coriolis, with at least four curved measuring tubes, at least one actuator arrangement, and at least one sensor arrangement, with a first measuring tube and a second measuring tube are in a common first plane and a third measuring tube and a fourth measuring tube in a common second plane, the first plane and the second plane passing in parallel with each other, and being that all four measuring tubes on the inlet and outlet side are combined in terms of flow technique with a collector.
    [0002] Mass flow meters that work according to the Coriolis principle have been known for many years, they allow a determination of the mass flow with high precision of the medium flowing through the measuring tube. For the verification of the mass flow, the measuring tube is excited for oscillations, by means of an oscillation generator or also by means of several oscillation generators, especially with the proper frequency of a particular oscillation mode, and the oscillations that in fact they result are detected and verified with oscillation buffers. In general, the oscillation generator and oscillation dampers are built in such a way that they have a permanent magnet as well as an electromagnet coil, in order to electrically transmit oscillations on the measuring tube and, respectively, detect oscillations of the measuring tube.
    [0003] The investigation consists, for example, in the fact that the gap between the oscillations is detected each time by two oscillation buffers, being determined that this lag is a direct measure for the mass flow. Meters are known
    Petition 870190092143, of 16/09/2019, p. 7/33
    2/19 of Coriolis mass flow rate, which have a single measurement tube, as well as those with exactly two measurement tubes, the measurement tubes being essentially straight or curved.
    [0004] Depending on the quantity of masses to be transported, the measuring tubes of mass flow meters have totally different nominal diameters, with different wall thicknesses. In their entirety the measuring tubes must be designed in such a way that they can withstand the necessary pressures and the mechanical stresses that occur, that they can be excited with acceptable energy expenditure for oscillations that can be well detected, and that the frequencies of the measuring tube through which the current passes, stay in a desired range.
    [0005] DE 10 2004 035 971 A1, publishes a mass flow meter type Coriolis with four curved measuring tubes, and the measuring tubes can be ordered each time in pairs in flow in the same direction or in countercurrent with a fluid , whose mass flow must be determined. The four measuring tubes are optionally arranged in units of two measuring tubes either side by side or above each other, and can be excited together for oscillations in the opposite direction. In a pair of measuring tubes, parts of an actuator and sensor arrangement are fixed each time, so that the measuring tubes can be excited for oscillations and the excited oscillations can be detected with the sensor arrangements. In the arrangement, in which the measuring tubes are arranged in pairs above each other, the lower measuring tube is configured a little more and more, in order to pass over the longest distance between the inlet and the outlet.
    Petition 870190092143, of 16/09/2019, p. 8/33
    3/19 [0006] Starting from the state of the art mentioned above, the invention is based on the objective of indicating a mass flow meter type Coriolis for large amounts of flow, which is improved with respect to its measurement accuracy.
    [0007] In the case of a mass flow meter type Coriolis according to gender, the aforementioned objective is solved in such a way that the geometry and / or surface characteristics of the measuring tubes are chosen in such a way that the resistance of all four measuring tubes is identical for a chain.
    [0008] The four measuring tubes of the Coriolis mass flow meter are preferably curved in the form of U or V, and extend between the collectors arranged on both sides. The horizontal distance between both collectors is of equal length for all measuring tubes. The measuring tubes that are in a common plane, preferably vertical, are consequently arranged one above the other. Preferably, the distance between measuring tubes is constant throughout the entire section between the collectors, so that the measuring tubes pass in parallel with each other, and especially also the central lines of both measuring tubes. arranged one above the other, have a constant distance from each other.
    [0009] The fact that two measuring tubes are on a plane each time, namely the first measuring tube and the second measuring tube and, respectively, the third and fourth measuring tube, means that each time both measuring tubes are arranged as a pair of measuring tubes one above the other, namely, advantageously in such a way that a pair of measuring tubes, when operating the Coriolis mass flow meter, can oscillate in the opposite direction in relation to the second pair of measuring tubes and that
    Petition 870190092143, of 16/09/2019, p. 9/33
    4/19 measured values can be detected. In the case of a configuration, in which the measuring tubes in one plane have the same diameter, even both center lines of the measuring tubes are preferably in a common plane. However, this is also imaginable for measuring tubes, which do not have an equal diameter. Especially in the case of configurations with different diameters, the outer circumferences are, for example, on one side, preferably on the side facing the second pair of measuring tubes, from the measuring tubes in a plane, as soon as the crack, the crack oscillation between the measuring tube pairs is constant for all measuring tubes.
    [00010] The openings of the four measuring tubes end on both sides in a collector, which gathers the measuring tubes in terms of flow technique. Due to the common collectors at both ends of the measuring tubes, for all measuring tubes the pressure at the inlet is identical, and also for all measuring tubes the pressure is identical at the outlet. During operation, the respective pressure difference between the inlet pressure and the outlet pressure depends on a large number of fluid parameters and the Coriolis mass flow meter, especially the measuring tubes.
    [00011] The geometry and / or surface characteristics of the measuring tubes are chosen according to the invention in such a way that, preferably, at the optimum point of operation of the respective Coriolis mass flow meter, the resistance in terms of The flow technique of all four measuring tubes is identical for the current. This means, in particular, that an equal volumetric current is obtained in all four measuring tubes at the optimum operating point. In this case, as the optimum operating point, the operating point or operating parameters are considered, for
    Petition 870190092143, of 16/09/2019, p. 10/33
    5/19 which the Coriolis mass flow meter is suitable and designed.
    [00012] In addition to the influence through the characteristics of the fluid flowing inside a pipe, which by virtue of the collectors are the same for all measuring tubes, the current of a fluid inside a pipe is influenced in essence through the characteristics of the surfaces of the pipe itself and of the pipe geometry, especially the diameter, the length and the number and radius of curvature of arcs provided within the pipe. Consequently, all four measuring tubes of the Coriolis mass flow meter are designed according to the invention in such a way that each measuring tube opposes an essentially identical resistance to the current, so, especially when a pressure loss occurs. predetermined by the collectors, always obtain an equal volumetric current in all four pipes. [00013] With respect to the geometry of the measuring tubes, for example, the total length, the diameter or the number and the path of the arcs of the pipes can be adjusted, preferably also taking into account the characteristics of the fluid at the point of operation or in the Coriolis mass flow meter operation window. With regard to the surface characteristics of the measuring tubes, the surface roughness of the measuring tubes on the internal surface is particularly important, which comes in contact with the current. According to the teaching of the present invention, the different tube resistances for the current are consequently compensated, caused by the different lengths of the curved measuring tubes, by means of selective selection and adjustment of other parameters, such as diameter and surface quality, so that for all measuring tubes an equal pipe resistance predominates, as
    Petition 870190092143, of 16/09/2019, p. 11/33
    6/19 example, in the case of mass flow meters type Coriolis with four straight and identical measuring tubes.
    [00014] As especially advantageous, a first configuration of the Coriolis mass flow meter was shown, in which the measuring tubes that are in a common plane are configured in such a way that they have an equal length. The total length of all four measuring tubes, therefore, the section over which the central line of a measuring tube passes, in the case of this configuration is consequently identical. In order to obtain a tube resistance identical to the current in this case, the diameter and surface characteristics of all four measuring tubes are preferably identical for this purpose. An identical length of the measuring tubes can be obtained, for example, by the fact that the length of one or more measuring tubes is selected selectively longer than necessary for a connection between the collectors, therefore, for example, it is extended. Depending on the configuration, especially choice of the number and radius of the arcs, this has the consequence that the measuring tubes that are in a plane no longer necessarily pass in a parallel way along the total stretch between the collectors, but can also present distances that vary.
    [00015] In an especially advantageous way, the length of the measuring tubes can be influenced and configured with equal length, since the radii of curvature of the measuring tubes, which are in a common plane, complement each other in such a way, as well that the length of the measuring tubes is identical. In this case, “they complement each other alternately means that the sum of the sections, over which a certain radius passes, seen in relation to the total length of both measuring tubes that pass in a plane, are the same for both tubes.
    Petition 870190092143, of 16/09/2019, p. 12/33
    7/19 measurement. In this way, the different lengths of each section of the measuring tubes, due to the different radii of curvature, compensate in such a way that both measuring tubes that are each time in a plane, pass completely parallel with a constant distance one in relation to each other, while the length of the measuring tubes and especially the length of the central lines of the measuring tubes is totally identical. This configuration has the advantage that, with an equal diameter of the measuring tubes and an equal length built through the radii of curvature, each measuring tube opposes the same tube resistance to the current. The radii of curvature correspond to each other preferably also in such a way that the radius of curvature of the measuring tube, which in terms of flow technique passes further out, that is, the measuring tube that has to overcome a stretch longer, corresponds to the radius of curvature of the measuring tube that passes in with the added distance value between the measuring tubes and the radius of the added tube.
    [00016] Alternatively to a configuration in which the length of the measuring tubes is exactly identical, an identical pipe resistance can also be produced according to another configuration, in which the measuring tubes that are in a common plane have a different length, and for adjusting the tube resistances, the diameter of the longest measuring tube is larger than the diameter of the shortest measuring tube. The increased pipe resistance due to the longer length, in principle in comparison with the slightly shorter measuring tube, with the other equal parameters, in the case of the longer measuring tube, it is compensated by the fact that the diameter is slightly larger , as soon as the difference in pipe resistance, therefore the disadvantage of the longer length, is again
    Petition 870190092143, of 16/09/2019, p. 13/33
    8/19 compensated, namely, by the larger diameter. The choice of the diameter of the measuring tubes in the context of the construction of the Coriolis mass flow meter is preferably carried out also under consideration of the fluid characteristics and under consideration of the operating parameters of the respective Coriolis mass flow meter.
    [00017] As an alternative or complementary to the characteristics of the execution method described above, it is provided according to another configuration, that the measuring tubes that are in a common plane have a different length, with respect to their roughness at The inner surface of the shortest measuring tube and / or the longest measuring tube is chosen in such a way that the tube resistance of both measuring tubes is identical for a current. In the case of this configuration, as well as in the case of the previously described, consequently one of both measuring tubes brought together for a pair, is slightly longer than the other measuring tube, so an adjustment of the tube resistance is necessary. For adjusting the resistance of the tube to a current, the surface finish of the slightly longer measuring tubes of the measuring tube pairs is chosen in such a way that the measuring tubes despite the longer total length have a resistance to equal flow as the shorter measuring tubes. This configuration is especially suitable for mass flow meters like Coriolis, whose optimum operating point is in the range of a laminar current, since in the case of a laminar current, the influence of the surface roughness on the pipe resistance is especially great. . Preferably, both the diameter and the surface finish are chosen and adjusted at the same time as variable for slightly longer measuring tubes, with the
    Petition 870190092143, of 16/09/2019, p. 14/33
    9/19 aiming to balance the tube resistance for all measuring tubes.
    [00018] According to another advantageous form of execution of the mass flow meter type Coriolis, it is foreseen that retention devices are provided for fixing the actuator and / or sensor arrangements in the measuring tubes, and a Mounting in a state of connection connects the measuring tubes in one plane with each other, with a retention device in particular completely surrounding a measuring tube. Preferably, until both center lines of the measuring tubes, which are connected with each other with a retaining device, are in a common plane. The holding devices are made, for example, of a plate plate, so that in the assembled state it is ensured that the measuring tubes connected with holding devices do not oscillate in relation to each other. The retention devices have holes, with which they can be fitted over both measuring tubes that are in a plane. For this purpose, the inside diameter of a hole corresponds to the outside diameter of a measuring tube, and the retaining devices are attached to the measuring tubes, for example, with closure due to force, due to the material or due to the shape. At least one part of an actuator and / or sensor arrangement is attached to a holding device each time, and a complete actuator and / or sensor arrangement consists of two parts arranged opposite each other and fixed each time in one retention device, which exert interaction in the assembled state. It is usually the case of the two parts of an actuator and / or sensor arrangement of a permanent magnet and an electromagnet coil, into which the permanent magnet penetrates. In this case the two parts are arranged in such a way that they act between the two pairs
    Petition 870190092143, of 16/09/2019, p. 15/33
    10/19 of measuring tubes, which are each time joined with a retention device.
    [00019] A special stability of the retention device, which prevents relative oscillations between both measuring tubes joined with a retention device, can be obtained when, according to another configuration, the retention devices are configured in such a way , that the retaining devices are configured symmetrically for the actuator or sensor arrangements, especially with respect to at least two planes orthogonal to each other, to be configured symmetrically. Due to the symmetry, the holding device achieves advantageous torsional stiffness, which reliably prevents relative movement of the measuring tubes connected by the holding device to each other. Each of the holding devices in the measuring tubes represents an additional mass in the operating state, which oscillates in resonance. Due to a symmetrical configuration of the retention devices, the mass is evenly distributed, so that disturbing oscillations cannot be created through masses that oscillate asymmetrically. The symmetry of the holding device is preferably provided with respect to a plane, which contains both central lines of the measuring tubes connected with each other. The second plane of symmetry is preferably a plane, which is orthogonal to the first plane, and which runs parallel to the central lines of the measuring tubes, exactly halfway between the central lines of the tubes measuring
    [00020] Especially in the case of fluids inside the Coriolis mass flow meter, which strongly dampen the oscillations of the measuring tubes, it proved to be advantageous when
    Petition 870190092143, of 16/09/2019, p. 16/33
    11/19 in a holding device above or below the two measuring tubes connected with the holding device, a part of an actuator and sensor arrangement is attached. Since, above and below the measuring tubes, for example, an actuator arrangement is increasingly provided, then a greater excitation energy is available for the excitation of the oscillations of the measuring tubes, so especially in the case of peripheral conditions strongly absorbent in terms of oscillations, a sufficient oscillation to detect mass flow can be excited. Another advantage of the double actuator arrangement is that the measuring tubes are advantageously excited momentarily, so that no disturbing torsional oscillations of the measuring tube pairs are excited, however on both sides of the measuring tubes a defined excitation force is applied, which only excites oscillations in a preferred oscillation plane.
    [00021] For the case that above and below the measuring tubes connected with a retention device a part of a sensor arrangement is provided in the retention device above and below each time, and with that it is provided between the pairs of measurement tubes measurement above and below the measuring tubes a sensor arrangement, the advantage is that possibly imposed or existing torsional oscillations of the measuring tube pairs in relation to each other can be evaluated by means of a comparison evaluation of the measurement signals of the upper and lower sensor arrangement, and that in this way the measurement signals can be cleared of this disturbing oscillation.
    [00022] The interfering coupling of disturbing oscillations, which start from the piping system that surrounds the Coriolis mass flow meter, can be prevented since two plates are provided on the entrance side and the exit side each time.
    Petition 870190092143, of 16/09/2019, p. 17/33
    12/19 of gousset (connection plates) spaced apart from each other, which connect all four measuring tubes with each other, especially the gousset plates are symmetrically configured. The gousset plates are each time in the extreme region of the measuring tubes connected firmly with all four measuring tubes, so the measuring tubes cannot move relative to each other. In order to further prevent the spread of disturbing oscillations, a second gousset plate is provided at a defined distance from the first gousset plate, which also connects all four measuring tubes to each other and is attached to them. In addition to preventing the interfering coupling of disturbing oscillations, the gousset plates also prevent the decoupling of the oscillations produced by the actuator arrangement, for the piping system that surrounds the Coriolis mass flow meter.
    [00023] According to another configuration, the measurement accuracy of the Coriolis mass flow meter can be further increased by the fact that the collectors provided on the input side and on the output side are configured so stably that these meet the functionality of a gousset plate. The measuring tubes that are brought together in terms of flow technique in the collectors for this purpose are firmly connected with the collector, so that the collector reliably prevents the relative movement of the four measuring tubes in relation to each other and dampens oscillations.
    [00024] The transmission of oscillations to the box is prevented by the fact that a reinforcement element is provided inside a Coriolis mass flow meter box, with the reinforcement element having an arc-shaped segment, which is the opposite way in relation to the arc-shaped tracking of
    Petition 870190092143, of 16/09/2019, p. 18/33
    13/19 measuring tubes. The measuring tubes are preferably curved in the shape of a U or V, and extend into a box. The reinforcement element is also preferably configured in the shape of a U or V, however, it is arranged in the opposite way in relation to the arc-shaped tracking of the measuring tubes and fixed on the walls of the box. In addition, through the reinforcement element, the Coriolis mass flow meter can be configured with essentially thinner and lighter walls, and sufficient stability is guaranteed through the reinforcement element. Preferably, the reinforcement element is configured as a solid part, or in a particularly preferred way it is configured as a welded tubular frame construction.
    [00025] In addition, the welded tubular frame construction has the advantage that, according to another configuration, a closed volume is configured within the reinforcement element, with a medium carrying carrier especially in the reinforcement element. heat.
    [00026] Through the volume configured inside the reinforcement element, a heat-carrying medium can be conducted, with which it can be heated or cooled, for example, the internal space of the Coriolis mass flow meter box, which is especially necessary in the case of temperature sensitive media inside the measuring tubes. Another field of use is, for example, the heating of measuring tubes for fluids, which otherwise would not flow or even solidify. To this end, the heat-carrying medium is introduced on one side of the volume into the reinforcement element and, once it has absorbed or dissipated energy, it is again led out of the volume for regeneration. Therefore, through the reinforcement construction, two features are served at the same time.
    Petition 870190092143, of 16/09/2019, p. 19/33
    14/19 [00027] In its details there are then a large number of possibilities for configuring and perfecting the Coriolis mass flow meter. To that end, reference is made to the following description of preferred execution examples, along with the drawing. The drawings show:
    Figure 1 shows an example of a Coriolis mass flow meter, in cut side view, Figure 2 the measurement tubes of a Coriolis mass flow meter according to figure 1, in side view, Figure 3 an example of the execution of the measuring tubes for a Coriolis mass flow meter, in front view, and figure 4 an example of the execution of the measurement tubes for a Coriolis mass flow meter, with actuator or sensor arrangements arranged on both sides, in a cut representation.
    [00028] Figure 1 shows an example of the execution of a mass flow meter type Coriolis 1, in cut side view. Inside the Coriolis 1 mass flow meter, four curved measuring tubes 2a, 2b, 2c, 2d are arranged in their entirety. As shown in figure 4, a first measuring tube 2a, and a second measuring tube 2b, are in a common first plane Ei, and a third measuring tube 2c, and a fourth measuring tube 2d, in a common second plane E2. In the case of the execution example according to figure 4, the central lines of the measuring tubes are placed in pairs 2a, 2b, and 2c, 2d, respectively, each time in the common plans E1, E2. The first plane E1, and the second plane E2, are arranged parallel to each other.
    [00029] As shown in figure 1, all four measuring tubes 2a, 2b, 2c, 2d, on the inlet and outlet side are combined in terms of flow technique with a collector 3. Collectors 3,
    Petition 870190092143, of 16/09/2019, p. 20/33
    15/19 have a chamber 4, in which the openings of the four measuring tubes 2a, 2b, 2c, 2d flow each time. In the case of the Coriolis mass flow meter according to figure 1, the geometry and surface characteristics of the four measuring tubes 2a, 2b, 2c, 2d are chosen in such a way that the pipe resistance of all four measuring tubes 2a, 2b, 2c, 2d, be identical for a chain. Especially in the case of the mass flow meter type Coriolis 1, according to figure 1, all four measuring tubes 2a, 2b, 2c, 2d, have an equal length, which is obtained by the fact that the radii of curvature R1, R2, shown in figure 2, of the four measuring tubes 2a, 2b, 2c, 2d, alternately complement each other in such a way that the total length of all four measuring tubes 2a, 2b, 2c, 2d is identical.
    [00030] Figure 2, shows the measuring tubes 2a, 2b, 2c, 2d, of the execution example according to figure 1, in representation represented in side view. The radii of curvature R1, R2, which in the case of measuring tubes 2a, 2b and 2c, 2d, are each time in a plane Ei, E2, complement each other in this example of execution in a reciprocal manner. Regarding this fact “complementing in a reciprocal manner means, that each of the four measuring tubes 2a, 2b, 2c, 2d, following the two collectors 3, shown in figure 1, passes through the radii of curvature R1, R2, over an arc-shaped segment with a certain number and defined sections. Thus, seen from left to right in figure 2, the first measuring tube 2a begins, for example, with an arc-shaped section with radius R2, then follows two arc-shaped sections with radius R1, and finally, on the right side of figure 2, an arc-shaped segment with radius R2. On the left side of figure 2, the second measuring tube 2b, begins with a section in the form of
    Petition 870190092143, of 16/09/2019, p. 21/33
    16/19 arc with radius Ri, follows with two arc-shaped sections with radius R2, and ends on the right side of figure 2, with an arc-shaped section with radius R1. Therefore, both measuring tubes 2a, 2b, pass in their stretch between both collectors 3, each time over two arc-shaped sections with radius R1, and each time over two arc-shaped sections with radius R2 , and the radii of curvature R1, R2 complement each other in such a way that in a region where the first measuring tube 2a has an arc-shaped segment with a radius R2, the second measuring tube 2b has an arc-shaped segment with a radius R1, and vice versa, as soon as the total length of both measuring tubes 2a, 2b is identical. The same applies correspondingly to the tracking of the third measuring tube 2c, with the fourth measuring tube 2d, not flat E2.
    [00031] Figure 3 shows an example of the execution of measuring tubes 5a, 5b, 5c, 5d, for a mass flow meter type Coriolis 1. According to figure 3, a more detailed measurement tube is arranged long 5b, 5d, with a shorter measuring tube 5a, 5c, in a common plane E1, E2. The shortest measuring tube 5a, is arranged with the longest measuring tube 5b, in a foreground E1, and the longest measuring tube 5d, is arranged with the shortest measuring tube 5c, in a second plane E2 . For adjusting the tube resistances of all four measuring tubes 5a, 5b, 5c, 5d, the diameter of the longest measuring tubes 5b, 5d is greater than the diameter of the shortest measuring tubes 5a, 5c. In the case of all four measuring tubes 5a, 5b, 5c, 5d, in addition to the diameters of measuring tubes 5a, 5b, 5c, 5d, also the inner surface of the measuring tubes 5a, 5b, 5c, 5d, with respect to its roughness is chosen in such a way that the tube resistance of all measuring tubes 5a, 5b, 5c, 5d is identical for a
    Petition 870190092143, of 16/09/2019, p. 22/33
    Current 17/19. Setting an equal pipe resistance for a current for all measuring tubes 5a, 5b, 5c, 5d, in this configuration example is a complex interaction of both parameters of surface roughness and the diameter of the measuring tubes. For fixing actuator and / or sensor arrangements not shown, in the measuring tubes 5a, 5b, 5c, 5d, retention devices 6 are provided, which connect the measuring tubes with each other, which are on a plane Hey, E2. On the narrow front sides 7 of a retaining device 6, a part of an actuator or sensor arrangement can be attached each time. In the extreme regions on the inlet and outlet side, all four measuring tubes 5a, 5b, 5c, 5d are connected to each other each time with a first gousset plate 8, and with a second gousset plate 9, in order to especially prevent the oscillations of the measuring tubes 5a, 5b, 5c, 5d, of the mass flow meter type Coriolis 1, from being transmitted to the piping system, not shown, which surrounds the flow meter Coriolis-type mass 1. According to figure 2, the first gousset plate 8 is configured as a straight plate piece, while the second gousset plate 9 has angular widening in its lateral regions.
    [00032] According to figure 1, the measurement tubes 2a, 2b, 2c, 2d, are arranged inside a box 10, of the mass flow meter type Coriolis 1. In the box there is also a measuring and evaluation electronics 11. The box is attached to the collectors 3, and completely surrounds the measuring tubes 2a, 2b, 2c, 2d. In order to increase the rigidity of the box 10, a reinforcement element 12 is provided, which has an arc-shaped tracking, which is opposite to the arc-shaped tracking of the measuring tubes 2a, 2b, 2c, 2d. The reinforcement element 12 serves to prevent
    Petition 870190092143, of 16/09/2019, p. 23/33
    18/19 a resonance oscillation of the housing 10, and in order to reduce the material thickness of the housing walls 10 at the same time. The reinforcement element 12 is configured as a welded tubular frame construction as soon as inside the reinforcement element 12, a closed volume is configured, within which a heat-carrying medium can be conducted. In this way, the internal volume of the box 10, and especially the measuring tubes 2a, 2b, 2c, 2d, can, for example, be heated or cooled.
    [00033] According to the example of execution in figure 1, in the retaining devices 6, parts of an actuator and sensor arrangement can be fixed each time on both sides 7. The arrangement of parts of an actuator and sensor arrangement, respectively, on both sides of measuring tubes 2a, 2b, 2c, 2d, has the advantage that measuring tubes 2a, 2b, 2c, 2d can be evenly excited with a high excitation energy, and with the sensor arrangements arranged on both sides, it is possible to compensate for possible torsional oscillations.
    [00034] In figure 4, a sectional representation is shown through the retaining devices 6, for actuator arrangements not shown. On both front sides 7, of the retaining devices 6, a part of an actuator arrangement can be fixed, so that each time two parts of an actuator arrangement on two retention devices 6, in the operating state can interact with each other the other. The retention devices 6 are configured as solid sheet parts and with respect to two planes orthogonal to each other are symmetrically configured. A symmetry of the retaining devices 6 is, for example, intentionally each time in relation to both the E1 and E2 planes in relation to another plane, which passes
    Petition 870190092143, of 16/09/2019, p. 24/33
    19/19 orthogonal to the Ei and E2 planes, exactly in the middle between the holes 13, of the retention device 6. The retention devices 6, are configured so stably that a relative oscillation of the tubes is not possible measuring instruments 2a, 2b or 2c, 2d, arranged in a common plane E1 and E2.
    权利要求:
    Claims (8)
    [1]
    1. Coriolis mass flow meter (1), with at least four curved measuring tubes (2a, 2b, 2c, 2d), at least one actuator arrangement, and at least one sensor arrangement, with a first tube measurement (2a), and a second measurement tube (2b), are in a common first plane (Ei), and a third measurement tube (2c), and a fourth measurement tube (2d), in a second plane common (E2), with the first plane (E1) and the second plane (E2) running parallel to each other, with all four measuring tubes (2a, 2b, 2c, 2d), on the inlet and outlet side they are combined in terms of flow technique with a collector (3), and the geometry and / or surface characteristics of the measuring tubes (2a, 2b, 2c, 2d), are chosen in such a way that the tube resistance of all four measuring tubes (2a, 2b, 2c, 2d) is identical for a current, characterized by the fact that the rays curvature (R1, R2) of the measuring tubes (2a, 2b; 2c, 2d), which are in a common plane (Ei, E2), are chosen in such a way that the radii of curvature (R1, R2) complement each other alternately, as soon as the length of the measuring tubes (2a, 2b , 2c, 2d) is identical, that the first measuring tube (2a) and the fourth measuring tube (2d) start with an arc-shaped section with the radius (R2), then follow two sections in the form of arc with radius (R1) and finally an arc-shaped section with radius (R2), and the second measuring tube (2b) and the third measuring tube (2c) start with a shaped section arc with radius (R1), then follow two arc-shaped sections with radius (R2) and finally an arc-shaped section with radius (R1).
    [2]
    2. Coriolis mass flow meter (1), according to claim 1, characterized by the fact that
    Petition 870190092143, of 16/09/2019, p. 26/33
    2/3 retaining devices (6), for fixing the actuator and / or sensor arrangements in the measuring tubes (2a, 2b, 2c, 2d), in which a retaining device (6), in an assembled state connect the measuring tubes (2a, 2b; 2c, 2d) with each other, which are on a plane (Ei, E).
    [3]
    3. Coriolis mass flow meter (1), according to claim 1 or 2, characterized by the fact that the retaining devices (6), for the actuator or sensor arrangements are symmetrically configured, especially with that at least two planes orthogonal to each other are configured symmetrically.
    [4]
    4. Coriolis mass flow meter (1), according to claim 2 or 3, characterized by the fact that in a holding device (6), above and below the two measuring tubes (2a, 2b; 2c, 2d), connected with the retention device (6), a part of an actuator or sensor arrangement is fixed.
    [5]
    5. Coriolis mass flow meter (1), according to any of claims 1 to 4, characterized by the fact that two gousset plates (8, 9) are provided on the inlet and outlet sides each time distanced from each other, which connect all four measuring tubes (2a, 2b, 2c, 2d) with each other, especially the gousset plates (8, 9) to be configured symmetrically.
    [6]
    6. Coriolis mass flow meter (1), according to any one of claims 1 to 5, characterized by the fact that the collectors (3), provided on the inlet and outlet side are configured in such a stable manner , that they meet the functionality of a gousset plate.
    [7]
    7. Coriolis mass flow meter (1), according to any one of claims 1 to 6, characterized by the fact that
    Petition 870190092143, of 16/09/2019, p. 27/33
    3/3 that inside a box (10), of the Coriolis mass flow meter (1), a reinforcement element (12) is provided, in which the reinforcement element (12) has an arc-shaped tracking , which is the opposite of the arc-shaped tracking of the measuring tubes (2a, 2b, 2c, 2d).
    [8]
    8. Coriolis mass flow meter (1), according to claim 7, characterized by the fact that inside the reinforcement element (12), a closed volume is configured, in which especially inside the reinforcement element (12) , a heat-carrying medium can be conducted.
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    同族专利:
    公开号 | 公开日
    EP2485020A1|2012-08-08|
    DE102011010178B4|2017-11-02|
    DE102011010178A1|2012-08-02|
    US8613228B2|2013-12-24|
    RU2012103386A|2013-08-10|
    JP2012159510A|2012-08-23|
    JP5631342B2|2014-11-26|
    CN102735299A|2012-10-17|
    RU2577419C2|2016-03-20|
    EP2485020B1|2017-05-17|
    US20120192658A1|2012-08-02|
    CN102735299B|2016-10-26|
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    法律状态:
    2017-06-27| B03A| Publication of an application: publication of a patent application or of a certificate of addition of invention|
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-07-09| B07A| Technical examination (opinion): publication of technical examination (opinion)|
    2019-12-03| B09A| Decision: intention to grant|
    2020-02-11| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 26/01/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102011010178.0|2011-02-02|
    DE102011010178.0A|DE102011010178B4|2011-02-02|2011-02-02|Coriolis mass flowmeter|
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