Coriolis flowmeter

Abstract

The invention relates to a Coriolis flowmeter comprising: - a measuring tube arrangement (4) with at least one measuring tube (3) and a fixed body arrangement (35); - at least one oscillation exciter (7) and at least one oscillation sensor (8); - a support arrangement (16) with a seat (29) and a fixing arrangement (34), wherein the fixing arrangement (16) has at least one swingable fixing element (40, 41), wherein the fixing arrangement (34) is adapted to mechanically releasably connect the measuring tube arrangement (4), in particular the at least one measuring tube (3), with a support arrangement body (62) via the fixed body arrangement (35), wherein the at least one fixing element (40, 41) is adapted to apply a bending force to the fixed body arrangement (35) to elastically bend the fixed body arrangement (35) in the case of connecting the measuring tube arrangement (4) with the support arrangement body (62).

Description

Technical Field

[0001] This invention relates to Coriolis flow meters, preferably for pharmaceutical and bioprocess applications. Background Technology

[0002] A Coriolis flow meter is a measuring device used to record the mass flow rate, viscosity, density, and / or variables derived therefrom of a flowable medium. Field devices for process measurement techniques with oscillating transducers, particularly Coriolis flow meters, have been known for many years. The basic structure of such a measuring device is described, for example, in EP1807681A1, wherein reference is taken in conjunction with this disclosure for the purpose of constructing field devices in the field of this invention within the context of this invention.

[0003] Typically, a Coriolis flow meter has one or more oscillating measuring tubes that can be oscillated by means of an oscillating exciter. These oscillations involve the tube length and vary depending on the type and velocity of the flowable medium located in the measuring tube. An oscillation sensor at another location in the measuring tube, or in particular two spaced apart, can record the varying oscillations as a measurement signal or multiple measurement signals. An evaluation unit then determines the mass flow rate, viscosity, and / or density of the medium from one or more measurement signals.

[0004] Coriolis flow meters with replaceable, disposable measuring tube devices are known. Therefore, for example, WO2011 / 099989A1 teaches a method for integrally forming a measuring tube device for a Coriolis flow measurement apparatus with a curved measuring tube, wherein the measuring tube body is first solidly molded from a polymer and then machined with a tool to create channels for guiding a flowable medium. WO2011 / 099989A1 teaches—same as US10,209,113B2—a connecting body adapted to receive and support a replaceable measuring tube device comprising a thin-walled plastic tube. The fixing of the measuring tube device occurs via the connecting body in a support device equipped with the desired actuator and sensor.

[0005] The mechanical characteristics of the measuring tube assembly used in Coriolis flow meters can vary considerably, necessitating the determination of specific characteristic variables, such as calibration coefficients and zero point, before its application to the Coriolis flow meter. It has been found that the zero point determined using fine-tuning methods often differs from the actual zero point of the replaceable measuring tube assembly in use. This deviation can be difficult to correct. This is because the deviation depends on the degree of fixation of the measuring tube assembly within the support structure, which is difficult to reproduce by different operators. Another factor is the micro-friction between the measuring tube assembly and the body of the support structure. Summary of the Invention

[0006] The purpose of this invention is to provide a Coriolis flow meter that is suitable for single-use applications and is insensitive to mechanical interference.

[0007] This objective is achieved by the Coriolis flow meter according to the present invention.

[0008] The Coriolis flow meter of the present invention, particularly suitable for pharmaceutical bioprocess applications, comprises:

[0009] - Measuring tube device,

[0010] The measuring tube device includes at least one measuring tube through which a medium can flow.

[0011] The measuring tube device has a fixing body device arranged on at least one measuring tube;

[0012] - At least one oscillation exciter adapted to excite at least one measuring tube to perform oscillation.

[0013] At least one oscillation exciter has at least two oscillation exciter components.

[0014] Wherein, at least two oscillation actuator components include at least one actuator magnet and / or actuator coil;

[0015] At least one oscillation exciter assembly, particularly an exciter magnet, is arranged on the measuring tube device;

[0016] - At least one oscillation sensor adapted to record the oscillation of at least one measuring tube.

[0017] At least one oscillation sensor has at least two oscillation sensor components.

[0018] Wherein, at least two oscillation sensor assemblies include at least one sensor magnet and / or sensor coil,

[0019] At least one oscillation sensor assembly, particularly a sensor magnet, is arranged on the measuring tube device.

[0020] - A support device, comprising a support device body, a base, and, in particular, a sensor coil and an actuator coil.

[0021] The measuring tube device can be arranged in the seat and mechanically releasably connected to the main body of the support device.

[0022] The support device includes a fixing device adapted to fix the measuring tube device in the base.

[0023] The fixing device has at least one, especially a swingable or rotatable fixing element.

[0024] The fixing device is adapted to mechanically and releasably connect the measuring tube device, particularly at least one measuring tube, to the main body of the support device via a fixing body device.

[0025] In this embodiment, at least one fixing element is adapted to apply a bending force to the fixing body device when the measuring tube device is connected to the support device body, so as to elastically bend the fixing body device.

[0026] The measuring tube assembly is a disposable component and can be replaced for future use. The support structure is designed to house the measuring tube assembly and ideally ensures that external mechanical influences have minimal impact on the measurement results.

[0027] The mechanical coupling between the measuring tube device and the support device occurs via the fixed body device. The elastic bending of the fixed body device through at least one fixing element results in mechanical clamping and force interlocking of the fixed body device. Therefore, compared to the form-interlocking connection, the micro-friction between at least one fixing element and the fixed body device can be reduced, and the zero point of the mass flow rate can be reproduced more accurately.

[0028] Advantageous embodiments of the present invention are as follows.

[0029] The embodiment provides that, in a fixed state, the bending force has at least one force component pointing in the longitudinal direction of the seat.

[0030] For this purpose, in a fixed state, the measuring tube device is positioned on a segment of the supporting body, specifically on the front surface of the fixed main body facing the seat, particularly a portion of the edge region. Furthermore, at least one fixing element is implemented and arranged on the supporting body such that, with the measuring tube device fixed, a bending force is generated in the longitudinal direction toward the seat. This is preferably greatest at the center of gravity of the area where the main body is fixed.

[0031] The embodiment provides that the main body of the support device has a support area in the seat for fixing the main body device.

[0032] The fixing main body device has a first surface.

[0033] The first surface faces at least one oscillation actuator component.

[0034] In the fixed state, the main body device is positioned with its first surface on the support area.

[0035] The measuring tube device contacts the support body only via the fixed body device. This is preferably plate-shaped and located on the support area of ​​the fixed body device. The support area may at least partially surround the seat of the support body device in cross-section. In that case, the peripheral edge area of ​​the fixed body device lies on the support area and is free-standing in some places, especially where at least one fixing element clamps the fixed body device. Alternatively, the support area comprises two separate surfaces located on opposite sides of the seat, with the fixed body device located on both sides.

[0036] The embodiment provides that the clamping area of ​​the fixing body device is offset relative to the support area in the longitudinal direction of the seat, particularly in the mounting direction of the measuring tube device. x ,

[0037] Among them, 0.05 < x ≤1 mm, especially 0.1 mm x ≤0.5 mm, and preferably 0.15 mm. x ≤0.25 mm.

[0038] The embodiment provides that the seat is defined laterally to the longitudinal direction by the support device wall.

[0039] At least one step is formed in the wall of the support device.

[0040] The steps include the supporting area.

[0041] The embodiment provides that the offset body is arranged between the step and the fixed body device.

[0042] The embodiment provides that the fixing body device has at least a first region and a second region on the first surface.

[0043] The second region lies within the plane.

[0044] The first surface faces at least one oscillation actuator component.

[0045] The first region and the second region are arranged to be offset from each other in the longitudinal direction of the measuring tube device.

[0046] The support device body has one, and specifically exactly one, support area within the seat for fixing the main body device to a substantially planar surface.

[0047] In the fixed state, the first region is located on the support region, and the fixed body device is bent by at least one fixing element so that the second region is offset from the plane in the longitudinal direction of the measuring tube device.

[0048] The embodiment provides that the first region is offset relative to the second region in the longitudinal direction of the seat, particularly in the mounting direction of the measuring tube device. y ,

[0049] Among them, 0.05 < y ≤1 mm, especially 0.1 mm y ≤0.5 mm, and preferably 0.15 mm. y ≤0.25 mm.

[0050] The embodiment provides that a second step is arranged between the first region and the second region, which forms an offset. y .

[0051] The embodiments provide that at least one fixing element is implemented as a rod and is oscillating about at least one axis.

[0052] The embodiments provide that at least one fixing element has a fixing surface.

[0053] In the fixed state, at least one fixing surface of the fixing element contacts the fixing body device, especially on the second surface.

[0054] The embodiments provide that the fixing device includes two, particularly radially arranged, fixing elements.

[0055] In each case, the fixing element has a fixing surface.

[0056] In the fixed state, the fixing surface of the fixing element contacts the fixing body device, especially on the second surface.

[0057] The embodiment provides that the measuring tube device includes two bent measuring tubes.

[0058] In each case, the measuring tube has an inlet section and an outlet section.

[0059] The fixed main body device connects the inlet and outlet parts of the measuring tube to each other.

[0060] The embodiments provide that, in each case, the measuring tube has an inlet longitudinal axis at the inlet portion and an outlet longitudinal axis at the outlet portion.

[0061] The first longitudinal plane extends through the longitudinal axis of the inlet of the measuring tube.

[0062] The second longitudinal plane extends through the longitudinal axis of the measuring tube outlet.

[0063] The fixing body device has a second surface oriented opposite to the first surface.

[0064] The first longitudinal plane and the second longitudinal plane define a first region on the second surface of the fixed main body device.

[0065] In the fixed state, the fixing surface of the fixing element is exclusively located on the first region.

[0066] The embodiment provides that the measuring tube device includes a first measuring tube and a second measuring tube.

[0067] The inlet longitudinal axis and outlet longitudinal axis of the first measuring tube extend within the third longitudinal plane.

[0068] The inlet longitudinal axis and outlet longitudinal axis of the second measuring tube extend within the fourth longitudinal plane.

[0069] The third and fourth longitudinal planes define the second region on the second surface.

[0070] In the fixed state, the fixing surface of the fixing element contacts the fixing body device outside the second region.

[0071] The embodiment provides that the measuring tube device includes a first measuring tube and a second measuring tube.

[0072] The inlet longitudinal axis and outlet longitudinal axis of the first measuring tube extend within the third longitudinal plane.

[0073] The inlet longitudinal axis and outlet longitudinal axis of the second measuring tube extend within the fourth longitudinal plane.

[0074] The third and fourth longitudinal planes define the second region on the second surface.

[0075] In the fixed state, at least one fixing element's fixing surface contacts the fixing body device in the second region. Attached Figure Description

[0076] The invention will now be explained in more detail with reference to the accompanying drawings, which are shown below:

[0077] Figure 1 This is a perspective view of a Coriolis flow meter used in pharmaceutical bioprocess applications;

[0078] Figure 2 This is a perspective view of an additional Coriolis flow meter used in pharmaceutical bioprocess applications;

[0079] Figure 3 This is a portion of the longitudinal section of the first embodiment of the Coriolis flowmeter of the present invention;

[0080] Figure 4 Two perspective views of the base of the Coriolis flowmeter of the present invention;

[0081] Figure 5 This is a portion of the longitudinal section of the second embodiment of the Coriolis flowmeter of the present invention; and

[0082] Figure 6 This is a portion of the longitudinal section of the third embodiment of the Coriolis flowmeter of the present invention. Detailed Implementation

[0083] Figure 1 A perspective view of a measuring device 2 in the form of a Coriolis flowmeter for pharmaceutical bioprocess applications is shown. A Coriolis flowmeter is a measuring device used to record mass flow rate, viscosity, density, and / or variables derived therefrom for flowable media. The measuring tube assembly 4 is adapted to be replaceably, i.e., mechanically releasable, inserted into a support assembly 16. For this purpose, only the individual components of the oscillation exciter and oscillation sensor, particularly the magnet devices 9.1, 9.2, are placed in the measuring tube assembly 4. Other components are arranged in the support assembly 16, particularly in the seat 29, which is adapted and implemented to accommodate the measuring tube assembly 4. The measuring tube assembly 4 comprises two curved measuring tubes 3.1, 3.2 extending parallel to each other. The measuring tubes 3.1, 3.2 are connected together via a coupler assembly 1 consisting of four coupling elements 6 and via a connecting body 5. The two coupling elements 6.1 in the inlet and the two coupling elements 6.2 in the outlet are mounted on the measuring tubes 3.1, 3.2 by material bonding. Measuring tubes 3.1 and 3.2 are formed such that the flow directions indicated by the two arrows are oriented in the inlet to be opposite to the flow direction in the outlet. In each case, at the inlet and outlet, a diverter may be arranged for process connection to a hose and / or plastic tubing system. In an embodiment, exactly one diverter body may be provided instead of two separate diverters. A diverter body is inserted at the inlet and outlet and facilitates decoupling of the measuring tube assembly 4 from the environment after installation in the support device. The individual coupling element 6 is plate-shaped and of one or two-piece construction. In each case, the coupling element may be fully or only partially clamped around the measuring tube. Measuring tubes 3.1 and 3.2 are implemented in a U-shape, i.e., in each case, having two legs 11 that extend substantially parallel to each other and are connected together via a bend. Arranged on each of the measuring tubes 3.1 and 3.2 are magnet assemblies 9.1 and 9.2. A magnet 10.1 for forming an assembly of an oscillating exciter is arranged in the bend of the magnet assembly 9.1. In each case, a magnet 10.2 is placed on leg 11, forming part of the oscillation exciter. Magnet 10 is placed on mounting area 14. In this embodiment, the mounting area is located on measuring tubes 3.1, 3.2.

[0084] The measuring tube device 4 is partially introduced into the seat 29 of the support device 16. The arrow indicates the direction of introduction. In this embodiment, it extends perpendicular to the longitudinal direction of the seat 29. The seat can also be implemented such that the measuring tube device 4 is introduced in the longitudinal direction of the seat (not shown). The support device 16 includes measuring and / or operating circuitry 15, which is connected to an oscillation exciter and an oscillation sensor, particularly to its coil system, and is adapted to generate and / or record a time-alternating magnetic field. The support device 16 includes a support body 22 in which the seat 29 is located. The connecting body 5 of the measuring tube device 4 includes an assembly surface 26 for positioning the measuring tube device 4 in a predetermined position within the support device 16. In the illustrated embodiment, the assembly surface 26 extends perpendicular to the longitudinal direction of the measuring tube device 4. In another advantageous embodiment, the assembly surface 26 extends in the longitudinal direction of the measuring tube device 4. The region 5 of the support body 22 that contacts the assembly surface 26 of the connecting body 5 is a support surface 27.

[0085] The support device 16 includes two side surfaces oriented parallel to each other, which define a seat 29 transverse to the longitudinal direction of the base. Coil devices 25 of oscillation sensors 8.1, 8.2 and oscillation exciter 7 are arranged in the side surfaces. The coil devices 25 of oscillation sensors 8.1, 8.2 are arranged in the longitudinal direction of the base relative to the coil device 25 of the oscillation exciter 7. All three coil devices 25 are located in the coil plane. Furthermore, the three coil devices 25 are implemented as flat coils and recessed into the side surfaces. In the side surfaces, the three coil devices 25 are arranged substantially opposite each other. In each of the two side surfaces, guides are machined, which are perpendicular to the longitudinal direction of the base 29 and parallel to the coil plane. In the illustrated embodiment, the base extends on both end faces of the base 29. This allows the measuring tube device 4 to be introduced perpendicular to the longitudinal direction of the measuring tube device 4. In another embodiment, the base extends on only one end face. In this case, the measuring tube device 4 is introduced into the support device 16 in the longitudinal direction of the measuring tube device 4 and the support device 16.

[0086] Figure 2A series of views illustrating the various assembly steps of the measuring device 2 of the present invention are shown. The measuring tube device 4 comprises two measuring tubes 3.1, 3.2, which are mechanically coupled to each other via a coupler device 1. The coupler device 1 in the illustrated embodiment comprises six coupling elements 6, which are partially clamped around the two measuring tubes 3.1, 3.2. The measuring tube device 4 is implemented as a disposable item and can be mechanically releasably arranged and secured in the provided support device 16. Each of the two measuring tubes 3.1, 3.2 comprises a measuring tube body 13.1, 13.2, which is at least partially formed of steel. An exciter magnet 36 and two sensor magnets 38.1, 38.2 are respectively mounted on the measuring tube bodies 13.1, 13.2.

[0087] The support device 16 includes a base 29, except Figure 1 As shown, the seat 29 does not extend from the side surface, but rather from the front region along the longitudinal direction of the support body 22. Furthermore, the support body 22 of the support device 16 includes an assembly surface 26 on which the measuring tube device 4 is positioned in the installed state, and is implemented such that the measuring tubes 3.1 and 3.2 of the measuring tube device 4 do not contact the wall of the support device 16. The assembly surface 26 surrounds the seat 29 in cross-section, such that, with the measuring tube device 4 arranged, the entire edge region of the fixing body device 35 lies on the assembly surface 26. Two exciter coils 37 of the oscillation exciter and four sensor coils 39 of the oscillation sensor (not shown) are arranged in the support device 16, specifically, in each case, distributed on the two radially oriented side surfaces 24 of the seat 29.

[0088] In the installed state, the measuring tube device 4 is introduced into the seat 29 and the fixing body device 35 is located on the assembly surface 26. The measuring tube device 4 is then prepared to be fixed to the support device 16 by the fixing device 34. For this purpose, according to the invention, the fixing device 34 includes a first fixing element 40 and a second fixing element 41, each fixing element being pivotally implemented and having fixing surfaces 42, 43. In each case, the fixing surfaces 42, 43 are located at the first end of the fixing elements 40, 41. In each case, the fixing elements 40, 41 have an elongated fixing element body. In the end portion including the first end, the fixing elements 40, 41 are pivotally fixed to the support device body 22 about a rotation axis. The fixing elements 40, 41 are adapted to press the fixing body device 35 against the assembly surface 26 so as to thus inhibit movement of the fixing body device. The first fixing element 40 is connected to a pivoting connecting device 46, which includes a connecting body 47. The connection between the fixing element 40 and the pivoting connecting device 46 is located at the second end of the first fixing element 40. The connecting body 47 is at least partially cubic and cylindrical in its end portion. There, a fastening device 48 is arranged on the connecting body 47. In the illustrated embodiment, the end portion of the connecting body 47 has external threads and the fastening device 48 is implemented as a screw. Depending on the application and measurement performance requirements, the fastening device 48 can also be implemented as a torque screw, clamping bracket, tightener, quick tightener, clamping rod, clamping retainer, cover, and / or eccentric rod. Optionally, the fastening device 48 (not shown) can be implemented as a hook and loop, particularly a cufflink, arranged on the first fastening element 40 of the two fastening elements 40, 41. A swinging component of the second fastening element 41 is correspondingly arranged. In this case, the swinging component is implemented as a cuff swinging component, having at least one hook, particularly a cuff hook.

[0089] In the fixed state, the fixing surfaces 42 and 43 of the fixing elements 40 and 41 contact the support areas 44 and 45 of the fixing body device 35. The connecting body 47 of the connecting device 46 interacts with the second fixing element 41, i.e., the connecting device 46, especially the connecting body 4, connects the first fixing element 40 and the second fixing element 41. The second fixing element 41 includes a guide 51 for the end of the connecting body 47 on its second surface. The connecting body 47 extends through the guide 51 of the second fixing element 41 in the fixed state. The fastening device 48 contacts the clamping surface 49 of the second fixing element 41. When the fastening device 48 is tightened—in the form of a screw—the two fixing elements are evenly oriented towards each other. The fastening device 48 presses against the clamping surface 49. Because the two fixing elements 40 and 41 are implemented to be able to swing about the axis of rotation, the tightening and corresponding proximity of the fixing elements 40 and 41 generate a force on the fixing body device 35 in the direction of the assembly surface 26 parallel to the longitudinal direction of the measuring tube device 4. These forces provide uniform fastening of the measuring tube device 4 to the body 22 of the support unit. Measuring tubes 3.1 and 3.2 each have an inlet longitudinal axis at the inlet portion and an outlet longitudinal axis at the outlet portion, wherein a first longitudinal plane extends through the inlet longitudinal axis of the measuring tube, wherein a second longitudinal plane extends through the outlet longitudinal axis of the measuring tube, wherein the fixing body device has a second surface oriented opposite to the first surface, wherein the first and second longitudinal planes define a first region on the second surface of the fixing body device, wherein the inlet and outlet longitudinal axes of the first measuring tube extend in a third longitudinal plane, wherein the inlet and outlet longitudinal axes of the second measuring tube extend in a fourth longitudinal plane, wherein the third and fourth longitudinal planes define a second region on the second surface, wherein in the fixed state, the fixing surface of the fixing element is particularly exclusive on the first region and, in this case, outside the second region.

[0090] Figure 3A partial longitudinal section of a first embodiment of the Coriolis flowmeter of the present invention is shown, including a support device 16 and a measuring tube device 4. The measuring tube device 4 is mechanically releasable arranged in a seat of the support device body 62. The support device 16 includes a fixing device 34 having a pivotable fixing element 40, adapted to fix the measuring tube device 4 in a seat 29. The fixing device 34 is adapted to mechanically releasably connect the measuring tube device 4 to the support device body 62 via a fixing body device 35, particularly at least one of the measuring tubes 3 shown. In the connected state, the fixing element applies a bending force to the fixing body device 35 in the direction of the seat 29, which causes the fixing body device 35 to bend elastically. Thus, the fixing body device 35 is clamped in the seat. The fixing body device 35 includes a first surface 63 and a second surface 64 and is implemented as substantially planar, i.e., plate-shaped. The bending effectively presses the fixing element 40 against the second surface 64 of the fixing body device 35. The fixing body device 35, together with the first surface 63, is located on a support region 66 of the seat 29. In the illustrated embodiment, the fixing body device 35 is held by two surfaces and does not bend in the opposite direction in the direction of the seat 29. The seat is defined transversely to the longitudinal direction by a support device wall 67, in which at least one step 68 is formed. This step 68 provides a support area 66 against which the first surface 63 of the fixing body device 35 abuts. In the fixed state, the clamping area of ​​the fixing body device 35 is offset in the longitudinal direction of the measuring tube device 4. x The offset is less than 0.05. x ≤1 mm, especially 0.1 mm x ≤0.5 mm, preferably 0.15 mm x Within the range of ≤0.25 mm.

[0091] Optionally, the fixed body assembly may consist of multiple parts, one part being connected to at least one measuring tube by material bonding, while another part is assembled at least by form interlocking. This other part is implemented and adapted to serve as a process connection from the measuring tube to the process line. In this respect, the other part may have, for example, a standardized process connection, such as a flange or threaded connection.

[0092] Figure 4 A partial cross-sectional perspective view of the support device seat 29 of a second embodiment of the Coriolis flowmeter of the present invention is shown. Unlike the first embodiment, the support device body 22 includes a second step arranged in the longitudinal direction of the seat 29, particularly in the mounting direction of the measuring tube device, offset from the support area. z ,in, z>1 mm. The seat is defined laterally to longitudinally by a support device wall 67, which has a step 68 and a second step. The step 68 includes a support area 66, while the second step 70 is implemented in such a way that the main body device does not contact the second step in the clamped state.

[0093] Figure 5 A partial longitudinal section of a third embodiment of the Coriolis flowmeter of the present invention is shown. The third embodiment and... Figure 3 The main difference in the first embodiment is that the fixing body device 35 has a second step 70, which has a first region 72 located on the step 68. The step 68 is substantially implemented as a planar support region. This is implemented integrally with the fixing body device 35. The second step 70 has an offset. y , of which 0.05 < y ≤1 mm. In the unsecured state of the measuring tube device, the second region 73 of the fixed main body device lies in plane 69. In the fixed state, the fixing element clamps the fixed main body device, causing the second region 73 to offset from plane 69 in the longitudinal direction of the measuring tube device. The second step 70 and the fixing element are also implemented such that in the fixed state, only the first region 72 contacts the step 68, not the second region 73.

[0094] Figure 6 A partial longitudinal section of a fourth embodiment of the Coriolis flowmeter of the present invention is shown. The fourth embodiment and... Figure 3 The main difference in the first embodiment is that an offset body 71 is provided between the fixed body device 35 and the step 68. The offset body 71 can be connected to the step 68 or to the fixed body device 35 by material bonding. In the fourth embodiment, the offset... y This is achieved by offset bodies arranged on the steps or the first surface.

[0095] Reference tag list

[0096] Coupler device 1

[0097] Measuring device 2

[0098] Measuring tube 3

[0099] Measuring tube device 4

[0100] Connecting main body 5

[0101] Coupling element 6

[0102] Oscillator 7

[0103] Oscillation sensor 8

[0104] Magnet device 9

[0105] Magnet 10

[0106] Leg 11

[0107] Measuring tube body 13

[0108] Installation area 14

[0109] Measurement and / or operation circuit 15

[0110] Support device 16

[0111] Hose and / or plastic tubing systems 17

[0112] Container 18

[0113] Process monitoring unit 19

[0114] Entrance 20

[0115] Export 21

[0116] Support device body 22

[0117] Side surface 24

[0118] Coil equipment 25

[0119] Assembly surface 26

[0120] Support surface 27

[0121] Guide component 28

[0122] Seat 29

[0123] Process connection 30

[0124] Measuring tube system 31

[0125] Connecting element 32

[0126] Bioprocess bag 33

[0127] Fixing device 34

[0128] Fixed main body device 35

[0129] Exciter magnet 36

[0130] Exciter coil 37

[0131] Sensor magnet 38

[0132] Sensor coil 39

[0133] First fixing element 40

[0134] Second fixing element 41

[0135] Fixed surface 42

[0136] Fixed surface 43

[0137] Support area 44

[0138] Support area 45

[0139] Connecting device 46

[0140] Connecting body 47

[0141] Fastening device 48

[0142] Clamping surface 49

[0143] Swinging component 50

[0144] Guide Component 51

[0145] Oscillation sensor assembly 52

[0146] Evaluation circuit 53

[0147] Magnet main magnetic field axis 54

[0148] The main magnetic field axis of the coil is 55.

[0149] Coil surface 56

[0150] Magnet surface 57

[0151] Coil front area 58

[0152] Magnet front area 59

[0153] Support device body 62

[0154] Page 1, page 63

[0155] Page 64 (Second page)

[0156] Support area 66

[0157] Support device wall 67

[0158] Step 68

[0159] Plane 69

[0160] Second step 70

[0161] Offset of main body 71

[0162] Area 1, 72

[0163] Second Zone 73

Claims

1. A Coriolis flow meter, comprising: - Measuring tube device (4). The measuring tube device (4) includes at least one measuring tube through which the medium can flow. The measuring tube device (4) has a fixing body device (35), which is arranged on at least one measuring tube; - At least one oscillation exciter (7), said at least one oscillation exciter (7) being adapted to excite at least one measuring tube to perform oscillation, The at least one oscillation exciter (7) has at least two oscillation exciter components. The at least two oscillation actuator components include at least one actuator magnet (36) and / or actuator coil (37). The exciter magnet (36) is arranged on the measuring tube device (4); - At least one oscillation sensor (8), said at least one oscillation sensor (8) being adapted to record the oscillation of said at least one measuring tube, The at least one oscillation sensor (8) has at least two oscillation sensor components. The at least two oscillation sensor assemblies include at least one sensor magnet (38) and / or a sensor coil (39). The sensor magnet (38) is arranged on the measuring tube device (4); - Support device (16), the support device (16) includes a support device body (62), a seat (29), the sensor coil (39) and the exciter coil (37). The measuring tube device (4) can be arranged in the seat (29) and can be mechanically releasably connected to the support device body (62). The support device (16) includes a fixing device (34), which is adapted to fix the measuring tube device (4) in the seat (29). The fixing device (34) has at least one fixing element. The fixing device (34) is adapted to mechanically and releasably connect the measuring tube device (4) to the support device body (62) via the fixing main body device (35). The at least one fixing element is adapted to apply a bending force to the fixing body device (35) to elastically bend the fixing body device (35) when the measuring tube device (4) is connected to the support device body (62). In the fixed state, the bending force has at least one force component pointing in the longitudinal direction of the seat (29).

2. The Coriolis flow meter according to claim 1, in, The Coriolis flow meter is suitable for pharmaceutical bioprocess applications.

3. The Coriolis flow meter according to claim 1, in, The fixing device (34) has at least one swingable or rotatable fixing element.

4. The Coriolis flow meter according to claim 1, in, The fixing device (34) is adapted to mechanically releasably connect the at least one measuring tube to the support device body (62) via the fixing body device (35).

5. The Coriolis flow meter according to any one of claims 1 to 4, in, The main body (62) of the support device has a support area (66) in the seat (29) for the fixed main body device (35). The fixing body device (35) has a first surface (63). Wherein, the first surface (63) faces the at least one oscillation actuator component, In the fixed state, the fixing main body device (35) is located on the support area (66) with the first surface (63).

6. The Coriolis flow meter according to claim 5, in, The seat is defined laterally to the longitudinal direction by the support device wall (67). At least one step (68) is formed in the wall (67) of the support device. The step (68) includes the support area (66).

7. The Coriolis flow meter according to claim 6, in, An offset body (71) is arranged between the step (68) and the fixed body device (35).

8. The Coriolis flow meter according to any one of claims 1 to 4, in, The fixed main body device (35) has at least a first region (72) and a second region (73) on the first surface (63). The second region (73) is located within the plane (69). Wherein, the first surface (63) faces the at least one oscillation actuator component, The first region (72) and the second region (73) are arranged to be offset from each other in the longitudinal direction of the measuring tube device (4). The main body (62) of the support device has a substantially planar support area (66) in the seat (29) for the fixing main body device (35). In the fixed state, the first region (72) is located on the support region (66), and the fixing body device (35) is bent by the at least one fixing element so that the second region (73) is offset from the plane (69) in the longitudinal direction of the measuring tube device (4).

9. The Coriolis flow meter according to claim 8, in, The main body (62) of the support device has a support area (66) in the seat (29) that is essentially planar for the fixed main body device (35).

10. The Coriolis flow meter according to claim 8, in, The first region (72) is arranged in the longitudinal direction of the seat (29) and offset relative to the second region (73). y , Among them, 0.05 < y ≤1 mm.

11. The Coriolis flow meter according to claim 10, in, The first region (72) is arranged in the mounting direction of the measuring tube device, offset relative to the second region (73). y .

12. The Coriolis flow meter according to claim 10, in, 0.1< y ≤0.5 mm.

13. The Coriolis flow meter according to claim 10, in, 0.15 y ≤0.25 mm.

14. The Coriolis flow meter according to any one of claims 10 to 13, in, A second step (70) is arranged between the first region (72) and the second region (73), the second step (70) forming the offset. y .

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