DE102019134806A1 - Measuring tube arrangement, measuring tube system and carrier unit of a measuring device for detecting a mass flow, a viscosity, a density and / or a variable derived therefrom of a flowable medium - Google Patents

Abstract

The invention relates to a measuring tube arrangement (4) of a measuring device (2) for detecting a mass flow rate, a viscosity, a density and / or a variable derived therefrom of a flowable medium, comprising: a measuring tube (3) for guiding the flowable medium, which is used for this purpose is set up to be made to vibrate, the measuring tube (3) having an inlet area, an outlet area and a measuring section arranged between the inlet area and the outlet area, the measuring tube (3) having mounting surfaces (26) in the inlet area and / or in the outlet area, for Mechanically detachable installation of the measuring tube arrangement (4) in a carrier unit (16) in a position, in particular defined by the mounting surfaces (26); - an electrical component (17); - a contacting arrangement (18), which is set up for the electrical component ( 17) after arranging the measuring tube arrangement (4) in a carrier unit (16) with a readout circuit (29) and / or a To connect the measuring and / or operating circuit (15), the electrical component (17) being connected to the contacting arrangement (18) via a connecting line (31). The invention also relates to a carrier unit (16) with a receptacle (23) for the measuring tube arrangement (4) and a measuring device (2).

Description

The invention relates to a measuring tube arrangement, a measuring tube system and a carrier unit of a measuring device for detecting a mass flow rate, a viscosity, a density and / or a variable derived therefrom of a flowable medium, a measuring tube system and a measuring device for detecting a mass flow rate, a viscosity, a density and / or a size of a flowable medium derived therefrom.

Field devices in process measurement technology with a sensor of the vibration type and, in particular, Coriolis flow meters have been known for many years. The basic structure of such a measuring device is, for example, in the EP 1 807 681 A1 described, reference being made in full to the structure of a generic field device within the scope of the present invention in this document.

Typically, Coriolis flow measuring devices have at least one or more oscillatable measuring tubes, which can be made to oscillate by means of a vibration exciter. These vibrations are transmitted over the length of the pipe and are varied by the type of flowable medium in the measuring pipe and its flow rate. A vibration sensor or, in particular, two vibration sensors that are spaced apart from one another can record the varied vibrations in the form of a measurement signal or several measurement signals at another point on the measuring tube. An evaluation unit can then determine the mass flow rate, the viscosity and / or the density of the medium from the measurement signal or signals.

Coriolis flowmeters with exchangeable, disposable measuring tube assemblies are known. For example, in the WO 2011/099989 A1 a method for the production of a monolithic measuring tube arrangement of a Coriolis flow meter with curved measuring tubes is taught, the measuring tube body of the respective measuring tubes first being solidly formed from a polymer and the channel for guiding the flowable medium then being incorporated in an exciting manner. On the two measuring tubes of the measuring tube arrangement, magnets are arranged on the facing sides. The associated coil devices for forming the vibration sensors and / or vibration exciters are arranged in the carrier unit on a coil device holding body extending between the two inserted measuring tubes.

The invention is based on the object of providing an alternative disposable concept for Coriolis flow measuring devices.

The object is achieved by the measuring tube arrangement according to claim 1, the measuring tube system according to claim 9, the carrier unit according to claim 12 and the measuring device according to claim 15.

• - ein Messrohr zum Führen des fließfähigen Mediums, welches dazu eingerichtet ist, in Schwingungen gebracht zu werden, wobei das Messrohr einen Einlaufbereich, einen Auslaufbereich und einen zwischen Einlaufbereich und Auslaufbereich angeordneten Messabschnitt aufweist, wobei das Messrohr im Einlaufbereich und/oder im Auslaufbereich Montageflächen aufweist, zum mechanisch lösbaren Einbau der Messrohranordnung in eine Trägereinheit in einer, insbesondere durch die Montageflächen definierte Position;
• - ein elektrisches Bauelement;
• - einen Kontaktierungsanordnung, welcher dazu eingerichtet ist das elektrische Bauelement nach Anordnen der Messrohranordnung in eine Trägereinheit mit einer Ausleseschaltung und/oder einer Mess- und/oder Betriebsschaltung zu verbinden, wobei das elektrische Bauelement mit der Kontaktierungsanordnung über eine Anschlussleitung verbunden ist.

The inventive measuring tube arrangement of a measuring device for detecting a mass flow rate, a viscosity, a density and / or a variable derived therefrom of a flowable medium, comprising:

• A measuring tube for guiding the flowable medium, which is set up to vibrate, the measuring tube having an inlet area, an outlet area and a measuring section arranged between the inlet area and the outlet area, the measuring tube having mounting surfaces in the inlet area and / or in the outlet area for the mechanically detachable installation of the measuring tube arrangement in a carrier unit in a position, in particular defined by the mounting surfaces;
• - an electrical component;
• a contacting arrangement which is set up to connect the electrical component to a readout circuit and / or a measuring and / or operating circuit after the measuring tube arrangement has been arranged in a carrier unit, the electrical component being connected to the contacting arrangement via a connection line.

By connecting the electrical component to the contacting arrangement, reading out and / or supply of the electrical component is made possible by an operating and / or measuring circuit connected to a mating contacting arrangement. According to the invention, the electrical component is not directly connected to an energy source and / or a measuring and / or operating circuit. A connection is implemented at least via the contacting arrangement.

The components - for example a vibration exciter and / or a vibration sensor - are usually connected to an operating and / or measuring circuit arranged in the carrier unit via connecting lines which extend along the respective measuring tubes. The connection of the connection lines with the operating and / or measuring circuit is usually made directly via a soldered connection. For example, this is the case in the EP 2 118 623 B1 taught. According to the invention, a direct connection is dispensed with and a contacting arrangement and a counter-contacting arrangement are provided between the operating and / or measuring circuit and the electrical component. When the measuring tube arrangement is introduced into a carrier unit, there is mechanical and electrical contact between the contacting arrangement and the counter-contacting arrangement and, at the same time, a connection between the electrical component and the operating and / or measuring circuit.

In combination with mounting surfaces on the measuring tube arrangement, which enable a mechanically detachable attachment of the measuring tube arrangement to the carrier unit, an alternative and at the same time easy-to-install disposable concept for Coriolis flowmeters is created.

Advantageous refinements of the invention are the subject of the subclaims.

One embodiment provides that the contacting arrangement has contact bodies which are each connected to the connection line and are in particular designed as mechanically detachable plug connectors or contact pads.

The advantage of connectors is the mechanical robustness and mechanical stability that come with them. This results in fewer broken contacts between the electrical component and the energy source and / or operating and / or measuring circuit.

The advantage of contact pads is the simplified insertion or removal of the measuring tube arrangement into or from the receptacle. The material requirement is significantly lower than with alternative solutions. Designing the contact pads as a thin layer is particularly advantageous. Thus there is no contact body protruding into the receptacle or transversely to the direction of insertion, which could sterically impede the measuring tube arrangement during insertion.

One embodiment provides that the connection lines are implemented as conductive structures, connecting bodies and / or electrical connectors, which are in particular applied to the measuring tube or partially selectively fixed on the measuring tube.

Conductive structures include printed, sprayed and / or sputtered conductive connecting lines. Connection bodies are generally one-piece conductive components that usually differ from a wire in terms of their flexibility. Connecting bodies include bleached parts and / or stamped and bent parts. Connection lines selectively fixed on the measuring tube are already state of the art, see for example EP 2 118 623 B1 .

One embodiment provides that the electrical component comprises at least one vibration sensor and / or at least one vibration exciter,
wherein the vibration exciter is set up to excite the measuring tube arrangement, in particular the measuring tube, to vibrate,
wherein the vibration sensor is set up to detect the deflection of the vibrations of the measuring tube arrangement.

Advantageous in the design compared to that in FIG WO 2011/099989 A1 taught measuring tube arrangement is that a better reproducibility is guaranteed. If the coil devices of the vibration sensor and / or the vibration exciter are arranged in the carrier unit, it must be ensured when mounting the measuring tube arrangement in the holder of the carrier unit that the distances and the orientations between the coil device and the associated magnet are maintained. A reproducible arrangement of the vibration sensors and / or the vibration exciter is particularly important if an adjustment has previously taken place for the corresponding measuring tube arrangement in order to determine characteristic values specific to the measuring tube. Measuring tube-specific characteristic values include calibration factor, nominal diameter, material-specific information, date of manufacture, zero point value, diagnostic parameters, device-specific coefficients and / or correction factors.

One embodiment provides that the electrical component comprises an in particular electronic data memory,
at least one measuring tube-specific characteristic value is stored in the data memory.

If the measuring tube arrangement has a data memory in which measuring tube-specific characteristic values are stored, it is particularly advantageous if the data memory is connected to the contacting arrangement via the connecting lines and an energy source and / or reading unit arranged on the carrier unit is set up for this purpose when a contact is formed between the contacting arrangement and the counter-contacting arrangement to read out the characteristic values stored in the data memory. Such a configuration is particularly characterized by its ease of assembly.

One embodiment provides that the measuring tube comprises a connecting body which has the mounting surfaces via which a form-fitting and / or force-fitting connection with a carrier unit can be realized,
wherein the contacting arrangement is arranged on the connecting body.

The function of the connection body is the mechanical decoupling of the measuring tube arrangement from the environment. For this it is necessary that the connection body is firmly connected to the housing via the fixing unit. It is therefore advantageous if the mechanical contact between the measuring tube arrangement and the carrier unit is used to create an additional electrical contact between the electrical component and the readout unit or the operating and / or measuring circuit. The electrical connection is made by touching or bringing the contact-making arrangement and the mating contact-making arrangement into contact.

One embodiment provides that the measuring tube arrangement comprises a first measuring tube and a second measuring tube,
wherein the vibration exciter is arranged on one of the two measuring tubes, in particular a magnet of the vibration exciter on the first measuring tube and a coil device of the vibration exciter on the second measuring tube,
wherein the vibration sensor is arranged on one of the two measuring tubes, in particular a magnet of the vibration sensor on the first measuring tube and a coil device of the vibration sensor on the second measuring tube.

Such a configuration has the advantage that fewer magnets and coil devices are required than with conventional disposable solutions.

One embodiment provides that the measuring tube arrangement comprises a first measuring tube and a second measuring tube,
wherein the measuring tubes each have an arc.

• - eine Messrohranordnung, insbesondere die erfindungsgemäße Messrohranordnung; und
• - ein Schlauch- und/oder Kunststoffrohrsystem, vorzugsweise zur Durchflussmessung bei automatisierten industriellen oder labortechnischen Anlagen,

wobei die Messrohranordnung an das Schlauch- und/oder Kunststoffrohrsystem angeschlossen ist und dazu eingerichtet ist die Durchflussgeschwindigkeit und/oder den Volumendurchfluss und/oder den Massedurchfluss des fließfähigen Mediums zu messen.The measuring tube system according to the invention, comprising:

• - A measuring tube arrangement, in particular the measuring tube arrangement according to the invention; and
• - a hose and / or plastic pipe system, preferably for flow measurement in automated industrial or laboratory systems,

wherein the measuring tube arrangement is connected to the hose and / or plastic tube system and is set up to measure the flow rate and / or the volume flow and / or the mass flow of the flowable medium.

Advantageous refinements of the invention are the subject of the subclaims.

One embodiment provides that the measuring tube arrangement and the hose and / or plastic tube system is arranged in a container, in particular a sterilization bag, which is designed to maintain sterility of the measuring tube arrangement and the hose and / or plastic tube system until the container is opened,
wherein the measuring tube system is sterilized by means of radiation sterilization, preferably gamma radiation sterilization or electron beam sterilization, superheated steam sterilization and / or gas sterilization.

In biomedical applications there is a great need for automated process monitoring. Sterilized measuring components are essential for such applications. It is therefore advantageous if the measuring tube system is sterilized in particular by gamma ray sterilization, and the sterility is maintained by accommodating the measuring tube system in a container. Plastic bags, which allow gamma rays and / or electron beams to pass through essentially completely, but are impermeable to impurities and germs, are preferably suitable as containers.

One embodiment provides that at least one process monitoring unit is connected to the hose and / or plastic pipe system,
wherein the process monitoring unit has a pressure transducer, temperature sensor, a balance, a pH sensor, a density sensor, a flow meter for determining a mass flow, a volume flow and / or a flow rate, a flow switch, a level sensor, a conductivity sensor, a concentration sensor, an oxygen sensor and / or comprises a turbidity sensor.

• - einen Trägereinheitskörper zum Befestigen einer Messrohranordnung, insbesondere der erfindungsgemäßen Messrohranordnung oder eines Messrohrsystems, insbesondere des erfindungsgemäßen Messrohrsystems;
• - eine Gegenkontaktierungsanordnung, welche am Trägereinheitskörper angeordnet ist und dazu eingerichtet ist mit einer Energiequelle und/oder einer Mess- und/oder Betriebsschaltung verbunden zu werden.

The carrier unit according to the invention, a measuring device for recording a mass flow rate, a viscosity, a density and / or a variable derived therefrom of a flowable medium, comprising:

• a carrier unit body for fastening a measuring tube arrangement, in particular the measuring tube arrangement according to the invention or a measuring tube system, in particular the measuring tube system according to the invention;
• a mating contact arrangement which is arranged on the carrier unit body and is set up to be connected to an energy source and / or a measuring and / or operating circuit.

The mating contact arrangement is set up to make electrical contact with the contact arrangement of the measuring tube arrangement form and thus to generate an electrical connection between the electrical component and the energy source and / or the measuring and / or operating circuit. The mating contact arrangement has contact bodies which are designed to be complementary to the contact bodies of the contact arrangement.

Advantageous refinements of the invention are the subject of the subclaims.

One embodiment provides that the carrier unit body has a receptacle for the measuring tube arrangement,
wherein the mating contact arrangement is arranged on or in the receptacle.

For example, the receptacle can have a support surface on which the counter-contacting arrangement is arranged. If the measuring tube arrangement is guided into the receptacle and the mounting surface of the measuring tube arrangement rests on the support surface of the carrier unit, there is electrical contact between the contacting arrangement and the counter-contacting arrangement and the operation of the vibration exciter and the reading of the vibration sensors is made possible.

One embodiment provides that the carrier unit body has a fixing device for fastening the measuring tube arrangement,
wherein the mating contact arrangement is arranged in the fixing device.

The fixing device is used to fix the measuring tube arrangement in the receptacle and to protect it against external, mechanical interference. The fixing device is connected to a connecting body of the measuring tube arrangement or to the measuring tubes in a non-positive manner. It is advantageous if, during fixing, an electrical contact is also established between the contact-making arrangement and the counter-contacting arrangement.

• - eine Messrohranordnung, insbesondere die erfindungsgemäße Messrohranordnung oder ein Messrohrsystem, insbesondere das erfindungsgemäße Messrohrsystem;
• - eine Trägereinheit, insbesondere die erfindungsgemäße Trägereinheit, wobei die Messrohranordnung in der Aufnahme der Trägereinheit angeordnet ist und mechanisch lösbar mit der Trägereinheit verbunden ist;
• - eine Mess- und/oder Betriebsschaltung,

wobei die elektronische Mess- und/oder Betriebsschaltung weiter dazu eingerichtet ist, Massedurchflussmesswerte, Viskositätswerte und/oder Dichtemesswerte und/oder Temperaturmesswerte und/oder Diagnosemesswerte und/oder Werte einer davon abgeleiteten Größe zu ermitteln und bereitzustellen.The measuring device according to the invention for detecting a mass flow rate, a viscosity, a density and / or a variable derived therefrom of a flowable medium, comprising:

• a measuring tube arrangement, in particular the measuring tube arrangement according to the invention or a measuring tube system, in particular the measuring tube system according to the invention;
• a carrier unit, in particular the carrier unit according to the invention, wherein the measuring tube arrangement is arranged in the receptacle of the carrier unit and is mechanically detachably connected to the carrier unit;
• - a measuring and / or operating circuit,

wherein the electronic measuring and / or operating circuit is further set up to determine and provide mass flow measured values, viscosity values and / or density measured values and / or temperature measured values and / or diagnostic measured values and / or values of a variable derived therefrom.

One embodiment provides that the measuring and / or operating circuit is set up to operate the vibration sensor and the vibration exciter, and that the measuring and / or operating circuit is connected to them by means of the contacting arrangement and the mating contacting arrangement.

One embodiment provides that a read-out circuit is connected to the data memory by means of the contacting arrangement and the counter-contacting arrangement,
wherein the read-out circuit is set up to read out measuring-tube-specific characteristic values from the data memory after the measuring tube arrangement has been arranged on the carrier unit and to forward these to the evaluation circuit.

• 1 - eine perspektivische Ansicht auf eine Ausgestaltung des Trägerkörpers und der Messrohranordnung;
• 2: eine Draufsicht auf eine weitere Ausgestaltung des Messgerätes, umfassend eine Messrohranordnung und eine Trägereinheit; und
• 3: eine Draufsicht auf eine Ausgestaltung des Messrohrsystems.

The invention is explained in more detail with reference to the following figures. It shows:

• 1 - A perspective view of an embodiment of the carrier body and the measuring tube arrangement;
• 2 : a plan view of a further embodiment of the measuring device, comprising a measuring tube arrangement and a carrier unit; and
• 3 : a plan view of an embodiment of the measuring tube system.

The 1 shows an embodiment of the measuring tube arrangement according to the invention 4th . The measuring tube arrangement 4th is suitable for this in a carrier unit 16 to be used mechanically separable. Different from other one-way concepts are the vibration exciters 7th and two vibration sensors 8th , 8.2 on the measuring tube 3 , 3.2 arranged. In the embodiment shown, a vibration exciter comprises 7th and a vibration sensor 8th , 8.2 each have a magnet 10 and a coil device 25th . One of the magnet arrangements 9 forming magnets 10 are on a first side of a measuring tube 3 attached while the coil device 25th on a second side on the measuring tube facing the first side 3 is arranged. The illustrated measuring tube arrangement 4th comprises two curved measuring tubes running parallel to each other 3 , 3.2, which via a coupler arrangement 1 , consisting of four coupling elements 6th , and via a connecting body 5 are connected to each other. Two coupling elements 6th are in the enema 20th and two coupling elements 6th are in the run-out of the respective Measuring tubes 3 , 3.2 attached in particular cohesively. The measuring tubes 3 , 3.2 are shaped so that the direction of flow, in the inlet 20th opposite to the direction of flow in the outlet 21 is oriented. According to a further embodiment, a flow divider body or two separate flow dividers can be provided which point to the inlet 20th and outlet 21 and which can contribute to the measuring tube arrangement 4th after installation in the carrier unit 16 to decouple from the environment. The individual coupling elements 6th are plate-shaped. The measuring tubes 3 , 3.2 are U-shaped, ie they each have two legs running essentially parallel to one another 11 , 11.2, which are connected via a curved section. On the first measuring tube 3 is a magnet assembly 9 arranged. There is a magnet in the curved section 10 the magnet arrangement 9 arranged, which forms a component of the vibration exciter. In the respective thighs 11 , 11.2 each have a magnet 10 attached, which forms part of the vibration sensor. The magnets 10 are on mounting surfaces 14th appropriate. The mounting surfaces 14th are located in the design on the respective measuring tubes 3 , 3 .2. In addition, there is a coil device in the curved section 25th , which is a component of the vibration exciter 7th forms. In the respective thighs 11 , 11.2 is in each case a coil device 25th attached, each of which is a part of a vibration sensor 8th , 8.2 forms.

The illustrated measuring tube arrangement 4th has two curved measuring tubes 3 , 3.2, which each have a measuring tube body 13th , 13.2 which is formed from a material which comprises a metal, a ceramic, a plastic and / or a glass. A longitudinal plane in which the longitudinal axes of the legs 11 , 11.2, divides the respective measuring tube 3 , 3.2 in two pages 12th , 12.2 a. The magnet arrangement 9 and the coil devices are each on the facing sides of the two measuring tubes 3 , 3.2 attached.

A contacting arrangement is on the connecting body 18th , which one with the coil devices 25th and a data memory 39 via a connecting cable 32 connected is. The contacting arrangement is used to form a mechanically releasable electrical contact between the electrical component and an energy source, readout unit, operating and / or measuring circuit.

The carrier unit 16 has a measuring and / or operating circuit 15th on which with the vibration exciter 7th and vibration sensors 8th , 8.2, in particular with the respective coil systems via the contact arrangement 37 can be contacted and are set up to generate and / or detect a temporally changing magnetic field. The carrier unit 16 has a carrier unit body 22nd on which is the recording 23 is located. The connecting body 5 the measuring tube arrangement 4th has mounting surfaces 26th on which serve the measuring tube arrangement 4th in a predetermined position in the carrier unit 16 to arrange. According to the configuration shown, the perpendicular shows the mounting surface 26th perpendicular to the longitudinal direction of the measuring tube arrangement 4th . According to a further advantageous embodiment, the perpendicular shows the mounting surface 26th in the direction of the longitudinal direction of the measuring tube arrangement 4th . The one with the mounting surface 26th of the connecting body 5 contacting surface of the carrier unit body 22nd is the supporting surface 27 . The carrier unit 16 also has two side faces oriented parallel to one another 24 , 24.2 on which the recording 23 Limit transversely to the longitudinal direction of the recording. In the two side faces 24 , 24.2 is a guided tour each time 28 incorporated, which is perpendicular to the longitudinal direction of the recording 23 and extends parallel to the coil plane.

According to the embodiment shown, the receptacle extends over two end faces of the receptacle 23 . This enables the measuring tube arrangement to be introduced 4th perpendicular to the longitudinal direction of the measuring tube arrangement 4th . According to a further advantageous embodiment, the receptacle extends exclusively over one end face. In that case the measuring tube arrangement is 4th in the longitudinal direction of the measuring tube arrangement 4th into the carrier unit 16 to introduce.

When inserting the measuring tube assembly 4th into the carrier unit 16 This creates an electrical and mechanically releasable contact between the contacting arrangement 18th and the mating contact arrangement 37 , via which communication with the readout unit and / or the operating and / or measuring circuit takes place.

The 2 shows a plan view of a further embodiment of the measuring device according to the invention 2 . The measuring device 2 comprises a carrier unit 16 and a measuring tube assembly 4th , which in a predetermined mounting position in the carrier unit 16 is arranged. The measuring tube arrangement 4th is mechanically detachable with the carrier unit 16 connected and can be removed and replaced by loosening a non-positive and / or positive connection. The measuring tube arrangement 4th has two measuring tubes 3 , 3.2, which are straight and run parallel to each other. The two measuring tubes 3 , 3.2 each have one side 12th and a side 12th on, with the respective pages 12th of the two measuring tubes facing each other and the respective sides 12th of the two measuring tubes are facing away from each other. On one of the two facing sides 12th is a magnet assembly 9 attached, which at least two magnets 10 include. In the configuration shown there are exactly three Magnets in the longitudinal direction of the respective measuring tube 3 staggered. The magnet arrangements are each in the measuring section of the measuring tube 3 arranged. The magnets 10 are with the associated measuring tube 3 glued or soldered. Alternatively, between the respective magnets 10 and the associated measuring tube 3 a magnet holder can be arranged with planar mounting surfaces. The magnets 10 are preferably cylindrical and have a planar end face that faces the respective coil device 25th is directed. On the measuring tube 3 are coil devices 25th , 25.2, 25.3 attached, the coil devices 25th , 25.2, 25.3 on the side 12th are arranged, the coil device 25 with the oppositely arranged magnet 10 together the vibration sensor 8th , wherein the coil device 25 with the oppositely arranged magnet 10 together the vibration sensor 8th and wherein the coil device 25th with the opposite magnet 10 together the vibration exciter 7th form. The coil devices 25th , 25.2, 25.3 each comprise a printed circuit board reel or a winding reel. The coil devices are each via connecting lines 32 connected to the contacting arrangement.

The measuring tubes 3 , 3.2 are via a coupler arrangement 1 mechanically coupled to each other and thus form a single coupled oscillating system. The coupler arrangement 1 comprises a coupler element according to the embodiment 6th in the inlet area and a coupling element 6th in the run-out area. A coupler element 6th has a material thickness that is 1 to 4 times the wall thickness of the measuring tube 3 , 3.2 corresponds.

The carrier unit 16 comprises a fixing device 34 , which is set up for the measuring tube assembly 4th in the carrier unit 16 to fix and to decouple against external influences. The fixation device 34 has mounting surfaces 14th on, the measuring tube assembly 4th so with the carrier unit 16 to be connected is that the respective mounting surface 26th the measuring tubes 3 , 3.2 on the intended mounting surface 14th rests. A fixation device 34 is between enema 20th and coupler arrangement 1 arranged and another fixing device 34 is between coupler arrangement 1 and outlet arranged. The fixation device shown 34 is in direct contact with the connecting body 5 .

The two measuring tubes 3 , 3.2 are via two connecting bodies 5 connected to one another, the connecting body 5 serve the measuring tube assembly 4th over the fixing device 34 with the carrier unit 16 connect to. The fixation device 34 is designed in such a way that when fixing the measuring tube arrangement 4th a force perpendicular to one through the two longitudinal planes of the two measuring tubes 3 , 3.2 defined level is effective.

The coupler arrangement also includes 1 exactly one coupler element 6th in the inlet area and exactly one coupler element 6th in the run-out area. The two coupler elements 6th each have the shape of an hourglass in longitudinal section, ie the material thickness decreases in the direction of the geometric center.

Furthermore, the carrier unit e16 comprises a measuring and / or operating circuit (not shown) which is connected to the counter-contacting arrangement. The measuring and / or operating circuit is connected to the three coil arrangements via the contacting arrangement and the counter-contacting arrangement and is set up to pick up a measuring signal at the coil arrangements or to apply an excitation signal. The measurement signal includes a voltage induced by a change in the magnetic field at the respective coil arrangements. The excitation signal includes a time-varying voltage that generates a time-varying magnetic field.

The measuring tubes 3 , 3.2 each have two process connections 30th on, which are designed as pneumatic quick connection connections and have a push-in design for connection to a hose and / or plastic pipeline. The measuring tubes 3 , 3.2 each have a measuring tube body 13th on, which comprises a material made of metal, ceramic, plastic and / or preferably glass.

The carrier unit 16 has a carrier unit body 22nd which includes plastic and / or metal.

The fuser unit 34 comprises the mating contact arrangement. When connecting the fuser 24 with the measuring tube arrangement 4th an electrical, mechanically releasable contact is established with the contacting unit arranged on the carrier unit. For this, the mounting surface must be arranged on the support surface of the carrier unit.

The 3 shows an embodiment of the measuring tube system according to the invention 31 . A measuring tube arrangement 4th - in the case off 2 - is via the process connections 30th with a hose and / or plastic pipe system 17th connected. In the hose and / or plastic pipe system 17th is a process monitoring unit 19th integrated. The hose and / or plastic pipe system 17th has a bioprocess bag 33 and a connector 32 with which the measuring tube system 31 can be connected to a process line. The entire measuring tube system 31 is in a container 18th . In that case it is the container 18th a sterilization bag that is suitable for sterilization processes based on ionic radiation.

List of reference symbols

1

Coupler arrangement

2

Measuring device

3

Measuring tube

4th

Measuring tube arrangement

5

Connecting body

6th

Coupling element

7th

Vibration exciter

8th

Vibration sensor

9

Magnet arrangement

10

magnet

11

leg

12th

page

13th

Measuring tube body

14th

Mounting surface

15th

Measurement and / or operating circuit

16

Carrier unit

17th

electrical component

18th

Contact arrangement

19th

Process monitoring unit

20th

enema

21

Outlet

22nd

Carrier unit body

23

admission

24

Side face

25th

Coil device

26th

Mounting surface

27

Support surface

28

Guide

29

Readout circuit

30th

Process connection

31

container

32

Connecting cable

33

Measuring tube system

34

Hose and / or plastic pipe system

35

bag

37

Mating contact arrangement

38

Fixing device

39

Data storage

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 1807681 A1 [0002]
• WO 2011/099989 A1 [0004, 0018]
• EP 2118623 B1 [0009, 0016]

Claims (15)

Measuring tube arrangement (4) of a measuring device (2) for detecting a mass flow rate, a viscosity, a density and / or a variable derived therefrom of a flowable medium, comprising: - A measuring tube (3) for guiding the flowable medium, which is set up to be made to vibrate, the measuring tube (3) having an inlet area, an outlet area and a measuring section arranged between the inlet area and the outlet area, the measuring tube (3) has mounting surfaces (26) in the inlet area and / or in the outlet area, for the mechanically detachable installation of the measuring tube arrangement (4) in a carrier unit (16) in a position defined in particular by the mounting surfaces (26); - An electrical component (17); - A contacting arrangement (18), which is set up to the electrical component (17) after the measuring tube arrangement (4) has been arranged in a carrier unit (16) with a readout circuit (29) and / or a measuring and / or operating circuit (15) connect, the electrical component (17) being connected to the contacting arrangement (18) via a connecting line (31). The measuring tube arrangement (4) Claim 1 , the contacting arrangement (18) having contact bodies which are each connected to the connecting line (31) and are in particular designed as mechanically detachable plug connectors or contact pads. The measuring tube arrangement (4) Claim 2 , wherein the connection lines (31) are implemented as conductive structures, electrical connectors, in particular connection bodies or connection lines, which are in particular applied to the measuring tube or partially fixed in places on the measuring tube. Measuring tube arrangement (4) according to at least one of the Claims 1 to 3 , wherein the electrical component (17) comprises at least one vibration sensor (8) and / or at least one vibration exciter (7), the vibration exciter (7) being set up to excite the measuring tube arrangement (4), in particular the measuring tube (3), to vibrate , wherein the vibration sensor (8) is set up to detect the deflection of the vibrations of the measuring tube arrangement (4). Measuring tube arrangement (4) according to at least one of the Claims 1 to 4th , wherein the electrical component (17) comprises an in particular electronic data memory (32), with at least one measuring tube-specific characteristic value being stored in the data memory (32). Measuring tube arrangement (4) according to at least one of the preceding claims, wherein the measuring tube comprises a connecting body (5) which has the mounting surfaces (26) via which a positive and / or non-positive connection with a carrier unit (16) can be realized, wherein the contacting arrangement (18) is arranged on the connecting body (5). Measuring tube arrangement (4) according to at least one of the preceding claims, wherein the measuring tube arrangement (4) comprises a first measuring tube (3.1) and a second measuring tube (3.2), wherein the vibration exciter (7) is arranged on one of the two measuring tubes (3.1, 3.2), in particular a magnet (10) of the vibration exciter (7) on the first measuring tube (3.1) and a coil device (25) of the vibration exciter (7) on the second measuring tube (3.2), wherein the vibration sensor (8) is arranged on one of the two measuring tubes (3.1, 3.2), in particular a magnet (10) of the vibration sensor (8) on the first measuring tube (3.1) and a coil device (25) of the vibration sensor (8) on the second measuring tube (3.2). Measuring tube arrangement (4) according to at least one of the Claims 1 to 7th , the measuring tube arrangement (4) comprising a first measuring tube (3.1) and a second measuring tube (3.2), the measuring tubes (3.1, 3.2) each having an arc. Measuring tube system (33), comprising: - a measuring tube arrangement (4), in particular the measuring tube arrangement (4) according to at least one of the preceding claims; and - A hose and / or plastic pipe system (34), preferably for flow measurement in automated industrial or laboratory systems, the measuring tube arrangement being connected to the hose and / or plastic pipe system (34) and the flow rate and / or the volume flow being set up for this purpose / or to measure the mass flow rate of the flowable medium. Measuring tube system (33) Claim 9 , the measuring tube arrangement (4) and the hose and / or plastic tube system (34) being arranged in a container (35), in particular a sterilization bag, which is designed to ensure sterility of the measuring tube arrangement (4) and the hose and / or plastic tube system (34) up to the opening of the container (35), the measuring tube system (4) being sterilized by means of radiation sterilization, preferably gamma-ray sterilization or electron beam sterilization, superheated steam sterilization and / or gas sterilization. Measuring tube system (33) Claim 9 and / or 10, wherein at least one process monitoring unit (36) is connected to the hose and / or plastic pipe system (34), the process monitoring unit (36) having a pressure transducer, temperature sensor, a balance, a pH sensor, a density sensor, a flow meter for Determination of a mass flow, a volume flow and / or a flow rate, a flow switch, a level sensor, a conductivity sensor, a concentration sensor, an oxygen sensor and / or a turbidity sensor. Carrier unit (16), a measuring device (2) for detecting a mass flow rate, a viscosity, a density and / or a variable derived therefrom of a flowable medium, comprising: a carrier unit body (22) for fastening a measuring tube arrangement (4), in particular the measuring tube arrangement (4) according to one of the Claims 1 to 8th or a measuring tube system (33), in particular the measuring tube system (33) according to one of the Claims 9 to 11 ; - A mating contact arrangement (37) which is arranged on the carrier unit body (22) and is set up to be connected to an energy source and / or a measuring and / or operating circuit (15). Carrier unit (16) according to Claim 12 wherein the carrier unit body (22) has a receptacle (23) for the measuring tube arrangement (4), the counter-contacting arrangement (37) being arranged on or in the receptacle (23). Carrier unit (16) according to Claim 12 and / or 13, wherein the carrier unit body (22) has a fixing device (38) for fastening the measuring tube arrangement (4), the counter-contacting arrangement (37) being arranged in the fixing device (38). Measuring device (2) for detecting a mass flow rate, a viscosity, a density and / or a variable derived therefrom of a flowable medium, comprising: a measuring tube arrangement (4), in particular the measuring tube arrangement (4) according to one of the Claims 1 to 8th or a measuring tube system (33), in particular the measuring tube system (33) according to one of the Claims 9 to 11 ; - A carrier unit (16), in particular the carrier unit (16) according to one of the Claims 12 to 14th wherein the measuring tube arrangement (4) is arranged in the receptacle (23) of the carrier unit (16) and is mechanically detachably connected to the carrier unit (16); - A measuring and / or operating circuit (15), wherein the electronic measuring and / or operating circuit (15) is further set up to measure mass flow values, viscosity values and / or measured density values and / or measured temperature values and / or measured diagnostic values and / or values of one of them to determine and provide derived variable, wherein the measuring and / or operating circuit (15) is set up to operate the vibration sensor (8) and the vibration exciter (7), and by means of the contacting arrangement (18) and the counter-contacting arrangement (37) with this is connected, and / or wherein a read-out circuit (39) is connected to the data memory by means of the contacting arrangement (18) and the counter-contacting arrangement (37), the read-out circuit (39) being set up after the measuring tube arrangement (4) has been arranged of the carrier unit (16) to read out measuring tube-specific characteristic values from the data memory and to forward them to the evaluation circuit.

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