WO2021122316A1 - Capteur de mesure d'un appareil de mesure pour détecter un débit massique, une viscosité, une densité et/ou une grandeur dérivée correspondante d'une substance coulante - Google Patents

Capteur de mesure d'un appareil de mesure pour détecter un débit massique, une viscosité, une densité et/ou une grandeur dérivée correspondante d'une substance coulante Download PDF

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Publication number
WO2021122316A1
WO2021122316A1 PCT/EP2020/085551 EP2020085551W WO2021122316A1 WO 2021122316 A1 WO2021122316 A1 WO 2021122316A1 EP 2020085551 W EP2020085551 W EP 2020085551W WO 2021122316 A1 WO2021122316 A1 WO 2021122316A1
Authority
WO
WIPO (PCT)
Prior art keywords
measuring
sensor
connecting body
inlet
outlet
Prior art date
Application number
PCT/EP2020/085551
Other languages
German (de)
English (en)
Inventor
Benjamin Schwenter
Christian Schütze
Marcel Braun
Frank Voigt
Original Assignee
Endress+Hauser Flowtec Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Endress+Hauser Flowtec Ag filed Critical Endress+Hauser Flowtec Ag
Publication of WO2021122316A1 publication Critical patent/WO2021122316A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4457—Removing or ejecting moulded articles for undercut articles using fusible, soluble or destructible cores
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/845—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
    • G01N11/16—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by measuring damping effect upon oscillatory body
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2071/00—Use of polyethers, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2081/00—Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as moulding material
    • B29K2081/06—PSU, i.e. polysulfones; PES, i.e. polyethersulfones or derivatives thereof
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
    • G01N2009/006—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis vibrating tube, tuning fork

Definitions

  • the invention relates to a measuring transducer of a measuring device for detecting a mass flow, a viscosity, a density and / or a variable derived therefrom of a flowable medium, a corresponding measuring device, a method for producing a connecting body and a use of a core melt-out method for producing the connecting body.
  • 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 a plurality of 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.
  • WO 2011/099989 A1 teaches a method for producing a monolithically designed measuring tube arrangement of a Coriolis flowmeter with curved measuring tubes, 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 becomes.
  • WO 2011/099989 A1 teaches - like US Pat. No. 10,209,113 B2 - a connecting body which is set up to accommodate and support the exchangeable measuring tube arrangement.
  • both documents do not disclose how the disposable measuring tube arrangement can be connected to a hose and / or plastic tube system.
  • the invention is based on the object of providing a solution for connecting the measuring sensor to a hose and / or plastic pipe system. Furthermore, the object is to provide a measuring device with a corresponding measuring sensor.
  • the invention is also based on the object of providing a manufacturing method of a connecting body of the corresponding measuring transducer, with which the connecting body can be manufactured inexpensively, monolithically and reproducibly.
  • the object is achieved by the measuring transducer according to claim 1, the measuring device according to claim 10, the method for production according to claim 11 and the use of a core melt-out method for production according to claim 13.
  • the sensor according to the invention 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:
  • measuring tube arrangement for guiding the flowable medium, the measuring tube arrangement having at least two measuring tubes, in particular running parallel to one another, the measuring tubes each having an inlet with an inlet direction and one
  • the measuring tubes Have an outlet with an outlet direction, the inlet direction and the outlet direction being oriented in opposite directions, the measuring tubes being bent at least once, in particular exactly once, between the inlet and the outlet, at least one vibration exciter, which is set up to close the measuring tubes
  • At least one vibration sensor which is set up to detect the deflection of the vibrations of at least one measuring tube
  • the connecting body which is set up to releasably connect the measuring tube arrangement to a process line, the connecting body having pipe connection openings to which the measuring tube arrangement is connected; wherein the connecting body is connected to the inlet and the outlet of the respective measuring tubes.
  • the connecting body can take on several functions. On the one hand, the
  • Connection body as a support body for decoupling the measuring tube arrangement opposite external interference.
  • the connecting body is solid and has vibration-damping properties.
  • the connecting body is also suitable as an attachment body by means of which the measuring transducer or the measuring tube arrangement can be fastened in a carrier unit.
  • the connecting body has attachment surfaces for attaching and fixing the measuring transducer to or in the carrier unit in a mounting position specified for the measuring transducer.
  • the connecting body serves as an adapter for connecting the measuring tube arrangement to a hose and / or plastic tube system with variable nominal widths.
  • the measuring tube arrangement can thus be produced independently of the hose and / or plastic pipe system and, if necessary, be connected to the hose and / or plastic pipe system via a connecting body provided for the hose and / or plastic pipe system.
  • the measuring sensor can also comprise a separate support and / or attachment body, which is in particular materially connected to the measuring tubes.
  • the connecting body is arranged on the support and / or attachment body in a form-fitting and / or force-fitting manner.
  • connection body can be attached to the measuring tube arrangement in a non-positive and / or form-fitting manner, i.e. by means of e.g. clamping or plugging.
  • the connecting body can be materially connected to the measuring tubes of the measuring tube arrangement - i.e., for example, glued, soldered or welded.
  • the connecting body can be formed from a material which steel,
  • the measuring tubes each include a measuring tube body which is formed from a material that comprises metal, in particular steel, plastic, glass and / or ceramic.
  • the measuring tubes are bent at least once.
  • a basic shape of the measuring tube body is preferably U-shaped. However, other shapes with at least one arc are also known, which also fall under the scope of the invention. It is advantageous if the material of the measuring tube body is from the material of the
  • connection body differs. In this way, the total weight of the sensor can be reduced.
  • the measuring tubes can be made of steel and the connecting body can be made of plastic.
  • the at least one vibration exciter usually comprises at least one magnet and a coil for generating a time-varying magnetic field.
  • the Magnet is arranged on the measuring tube to be excited to vibrate.
  • the coil can be arranged on a further measuring tube or on a carrier unit in which the measuring tube or the measuring sensor is inserted and which serves to shield the measuring sensor from interference and / or the electronic components of the measuring device, such as measuring, operating and / or to accommodate evaluation circuit.
  • the at least one vibration sensor generally comprises at least one magnet and a coil for detecting a time-varying magnetic field.
  • the magnet is arranged on a measuring tube that is to be made to vibrate.
  • the coil can be arranged on a further measuring tube to be made to vibrate or on the carrier unit of the measuring device.
  • the connecting body has an inlet channel, the inlet channel being designed to connect at least one inlet and preferably the inlets of all measuring tubes to the process line, the connecting body having an outlet channel, the outlet channel being designed to have at least one Outlet and preferably to connect the outlets of all measuring tubes to the process line.
  • the connecting body takes on the function of a
  • Distributor piece i.e. it divides a channel into two separate channels. Because the connecting body and measuring tube arrangement are two separate components, it is possible to design or optimize the geometry and shape of the measuring tubes independently of the shape and geometry of the connecting body.
  • One embodiment provides that the connecting body has a
  • Has connecting channel which connects the inlet of a first measuring tube with the outlet of a second measuring tube.
  • the medium to be conveyed flows through the inlet channel of the connecting body into the inlet of the first measuring tube. From there it flows through the measuring tube channel of the first measuring tube until it reaches the outlet and is directed via the connecting channel to the inlet of a second measuring tube, where it flows through the measuring tube channel to the outlet. From the outlet of the second measuring tube, it is then passed through the outlet channel of the connecting body into the connected pipeline or into the connected hose system.
  • the advantage of the design is that the measuring range is shifted compared to measuring sensors in which the flowing medium is separated in the connecting body. A larger measuring range can thus be covered by identical measuring tube arrangements with different connecting bodies. This not only simplifies the production of measuring sensors, but also reduces the production costs.
  • the advantage of the embodiment is that no new determination of the calibration factor and the zero point is necessary for the measuring tube arrangement in connection with the connecting body.
  • connection channel is designed to carry the medium and thus also in contact with the medium.
  • the connecting channel preferably has at least one arch.
  • the connecting body is preferably designed monolithically. Such a shape cannot be removed from the mold and therefore cannot be realized by means of a conventional original molding manufacturing process such as injection molding, for example.
  • connection body can, however, alternatively be realized by an additive or cutting manufacturing process.
  • the connecting channel can be drilled into a solid connecting body and then partially sealed with blind plugs.
  • the connecting body has a connecting channel which connects the inlet of one of the at least two measuring tubes with the outlet belonging to the measuring tube.
  • the connecting body has a first recess which is designed to be complementary to the inlet of one of the at least two measuring tubes, the connecting body having a second recess which is complementary to the outlet of one of the at least two measuring tubes, the inlet and the Outlet one of the at least two measuring tubes is arranged in the respective associated recess.
  • the two aforementioned configurations describe two possibilities for a measuring tube to separate the two measuring tubes of the measuring tube arrangement from the flow, so that the medium is guided exclusively through one of the two measuring tubes.
  • a measuring tube arrangement with two measuring tubes can thus also be used in a single-tube Coriolis flowmeter.
  • One embodiment provides that the connecting body is positively and / or non-positively connected to the measuring tube arrangement. Such a configuration makes it possible to separate the connecting body from the measuring tube arrangement and to reprocess both parts or one of the two parts separately.
  • the connecting body is made of a plastic and preferably polyetheretherketone (PEEK), polyaryletherketone (PAEK),
  • Polyphenylsulfone (PPSU), Polyethersulfone (PESU), Polysulfone (PSU), Polyarylamide (PARA) is manufactured.
  • the materials that come into contact with the medium must be biocompatible and gamma-sterilizable. It is therefore particularly advantageous if the measuring tube is made from one of the above-mentioned materials, since these meet the biopharmaceutical requirements.
  • the plastics mentioned are also suitable as a casting compound in an injection molding process for producing the connecting body.
  • One embodiment provides that the measuring tube arrangement has exactly two
  • connection body has a temperature sensor, preferably arranged on the connection channel.
  • the advantage of this embodiment is that a temperature measurement is possible in a region of the measuring tube arrangement which is mechanically decoupled from the oscillating measuring tubes. This means that the connection between the temperature sensor and the connection body is also less stressed. Furthermore, more precise temperature measurements are possible.
  • the temperature sensor comprises a resistance thermometer, thermocouple, temperature sensor with an oscillating crystal and / or semiconductor temperature sensor.
  • the measuring tube arrangement is connected to a hose and / or plastic tube system, preferably for flow measurement in automated industrial or laboratory systems.
  • the senor comprising the measuring tube arrangement, the connecting body and components of the vibration exciter and sensor, and the hose and / or plastic tube system is arranged in a container, in particular a sterilization bag, which is designed to ensure sterility of the measuring tube arrangement and the hose - And / or Kunststoffrohrsy stems to maintain up to the opening of the container, the measuring tube system by means of radiation sterilization, preferably gamma-ray sterilization or electron beam sterilization, superheated steam sterilization and / or gas sterilization is sterilized.
  • radiation sterilization preferably gamma-ray sterilization or electron beam sterilization, superheated steam sterilization and / or gas sterilization is sterilized.
  • At least one process monitoring unit is connected to the hose and / or plastic pipe system, the process monitoring unit having a pressure transducer, temperature sensor, a scale, 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 a turbidity sensor.
  • the measuring device for detecting a mass flow rate, a viscosity, a density and / or a variable derived therefrom of a flowable medium, comprising:
  • - a carrier unit - A measuring sensor according to the invention, wherein the measuring sensor is arranged in the carrier unit and connected to it in a mechanically separable manner;
  • An electronic measuring and / or operating circuit wherein the measuring and / or operating circuit is arranged in the carrier unit, wherein the electronic measuring and / or operating circuit is set up to operate the vibration sensors and the vibration exciter, and by means of electrical connections this is connected, wherein the electronic measuring and / or operating circuit is set up to determine and provide the mass flow, the viscosity and / or the density and / or the size of a flowable medium derived therefrom.
  • the method according to the invention for producing a connecting body of a measuring transducer 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 the following method steps: Providing a core arrangement and a mold cavity to form a cavity between the Core arrangement and the mold cavity; wherein the core assembly comprises at least one core, wherein the at least one core comprises a core body comprising a first material;
  • the core assembly Separating the mold cavity and the core assembly from the connecting body, the core assembly being separated by melting the at least one core of the core assembly at a melting temperature which is below the melting temperature of the second material and above the melting temperature of the first material.
  • the advantage of this method is a very high reproducibility of the connecting body, even if the connecting body has a shape that cannot be demolded.
  • One embodiment provides that the at least one core has at least one bend.
  • the core arrangement can have a plurality of cores, one core serving to form the connecting channel and two more serving to form an inlet and outlet channel of the connecting body. In that case, all three cores can have a bend, and the degree of bend of the three cores can differ.
  • a core melt-out process is used in a primary molding process, in particular in injection molding, to produce a connecting body of the inventive sensor of a measuring device for detecting a mass flow, a viscosity, a density and / or a variable derived therefrom of a flowable medium.
  • the core melting process is mainly used in the automotive industry. It enables every imaginable part contour, such as multiple bent pipes. This means that plastic parts that cannot be demolded can also be produced using injection molding processes.
  • the inner surfaces of the manufactured parts can be structured in a targeted manner.
  • FIG. 1 a perspective view of two configurations of the measuring transducer
  • FIG. 7 a sectional view of the configuration of the measuring sensor from FIG. 6.
  • the first embodiment has a measuring tube arrangement 4 with an arranged connecting body 5.
  • the measuring tube arrangement 4 comprises exactly two measuring tubes 3, which are mechanically coupled to one another via two coupling elements 6 in the inlet area and two coupling elements 6 in the outlet area.
  • the coupling elements 6 serve to form an oscillator from the two measuring tubes 3 which are individually excited to vibrate.
  • the coupling elements 6 are plate-shaped. However, other shapes are also known. In the context of the invention, there is no restriction either to a shape or to a number of coupling elements 6. For reasons of clarity, the vibration exciter and sensor are not shown.
  • the two measuring tubes 3 each have an arc between the inlet area and the outlet area, so that the respective measuring tube body is U-shaped.
  • the connecting body 5 is attached to the ends of the measuring tube arrangement 4 and connects the measuring tubes 3 of the measuring tube arrangement 4 to one another. Furthermore, the connecting body 5 has two pipe connection openings 9, which are each connected to an inlet channel 10 or an outlet channel 11. According to the first embodiment, the separates
  • Inlet channel 10 into two separate channels, which are each connected to the inlet of one of the two measuring tubes 3.
  • the same also applies to the outlet channel 11.
  • the outlet channel 11 has two channels which each converge from the outlet of the individual measuring tubes 3 and form the tube connection opening 9.
  • the pipe connection opening 9 and the measuring tubes 3 can differ in their nominal width.
  • the direction of flow of the medium to be conveyed through the pipe connection opening 9 differs from the direction of flow of the medium in the inlet and / or outlet area.
  • the second embodiment has the identical measuring tube arrangement 4 and differs from the first embodiment only in that
  • connection body 5 The inlet channel 10 of the connection body 5 is with the inlet 20 of the first measuring tube 3.1 connected.
  • the outlet channel 11 of the connecting body 5 is connected to the outlet 21 of the second measuring tube 3.2.
  • a connecting channel 12 connects the outlet 21 of the first measuring tube 3.1 with the inlet 20 of the second measuring tube 3.2.
  • the measuring tube arrangement 4 has a mirror plane which runs between the two measuring tubes 3.1, 3.2, parallel to the respective longitudinal axes of the measuring tubes 3.
  • the connecting channel 12 has a longitudinal axis which is inclined to the mirror plane of the measuring tube arrangement 4.
  • a temperature sensor 14 is arranged as close as possible to the medium to be conveyed.
  • the temperature sensor 14 can be a Pt100 or PT1000 element, for example.
  • FIG. 2 shows two perspective views of a further embodiment of the measuring sensor and connecting body.
  • the measuring tube arrangement 4 is identical to the embodiments of the measuring tube arrangement 4 shown in FIG. 1.
  • the measuring tube arrangement 4 has coupling elements.
  • Connection bodies 5 are known which have coupling elements 6, so the measuring tube arrangement 4 does not necessarily have to have coupling elements 6. Instead, the measuring tube arrangement 4 can also have connection components which do not have the function of a coupling element.
  • the connecting body 5 is solid and cuboid.
  • the inlet channel 10 and the outlet channel 11 are incorporated into the connecting body 5 and each have an arc or are L-shaped.
  • the inlet channel 10 is connected to the inlet 20 of the first measuring tube 3.1.
  • the outlet channel 11 is connected to the outlet 21 of the first measuring tube 3.1.
  • the connecting body 5 also has a connecting channel 12 which has a longitudinal axis which lies in a common plane with the longitudinal axes of the second measuring tube 3.2.
  • the inlet 20 of the second measuring tube 3.2 is connected to the outlet 21 of the second measuring tube 3.2 via the connecting channel 12. The medium to be conveyed is thus passed exclusively through the first measuring tube 3.1.
  • FIG. 3 shows a perspective view of an embodiment of the measuring device 2, which is connected to a process line 22. As before is the
  • the measuring tube arrangement 4 of the measuring sensor 1 is identical to the configurations shown in FIGS. 1 and 2.
  • the measuring sensor 1 is inserted into a carrier unit 16 in which the measuring and / or operating circuit 15 is also arranged, which is connected to the vibration exciter 7 and the two vibration sensors 8.1, 8.2.
  • the connecting body 5 is cuboid and has an inlet channel 10 which divides and extends into the respective inlets 20 of the two measuring tubes 3.1, 3.2.
  • the outlet channel 11 extends from the respective outlets 21 of the measuring tubes 3.1, 3.2 to the tube connection opening 9.
  • Magnets 29, which are components of the vibration exciter 7 and the two vibration sensors 8.1, 8.2, are arranged on the measuring tubes 3.1, 3.2.
  • the vibration exciter 7 includes a coil 28.
  • the two vibration sensors 8.1, 8.2 each include a coil 28.
  • the coils 28 are all arranged in the carrier unit 16 or sunk into a wall of the carrier unit 16.
  • Magnets 29 are arranged on the measuring ears 3.1, 3.2.
  • the two measuring tubes 3.1, 3.2 each have a longitudinal plane, which is also a mirror plane. These respective mirror planes divide the measuring tubes into two sides.
  • On the opposite sides of the two measuring tubes 3.1, 3.2 three magnets 29 are arranged.
  • a magnet 29 is associated with the vibration exciter 7 and two of the three magnets 29 are components of the vibration sensors 8.
  • the core arrangement 17 can be solid or hollow. Furthermore, the core body can have a material that serves as a filler.
  • the core arrangement 17 can be embodied in one piece - or monolithically - or have a plurality of cores 23 which are connected to one another in a form-fitting, force-fitting and / or material fit. 4 shows a monolithically designed core arrangement 17, the core 23 having a base body 30 and two at least partially tubular components 31.1, 31.2 which are connected to the base body 30.
  • the two components 31.1, 31.2 each have at least one bend 27 which is arranged between a first section in which the first component 31.1 is cylindrical and a second section in which the components 31.1, 31.2 each have a branch.
  • the first section of the first components 31 .1 form the inlet 20 of the connecting body 5.
  • the branch arranged in the second section serves to divide the inlet 20 of the connecting body 5.
  • a flow distributor is formed in the connecting body, which is used to distribute the medium flowing in from a pipeline to two measuring tubes.
  • the first section of the second components 31 .2 formed the outlet 21 of the connecting body 5. Also in the case of the second
  • Component 31 .2 a bend 27 is arranged between the outlet 21 and the branch.
  • a flow merger is formed in place of the second component 31.2, which is used to merge the medium flowing out of two measuring tubes and to guide it into the pipeline.
  • FIG. 4 shows an overmolded core arrangement 17, the overmoulded part forming the connecting body 5.
  • the core arrangement has a first material 25 and the connecting body 5 has a second material 26.
  • the basic body is not or only partially encapsulated. The shape of the mold cavity is insignificant for the production according to the invention and is therefore not shown.
  • the core arrangement 17 also has a base body 30 and two components 31.1, 31.2 which are connected to the base body.
  • the further refinement differs from the refinement shown in FIG. 4 essentially in that the first component 31.1 and second component 31.2 each have no branches - and thus also do not assume the function of a flow distributor and / or flow merger - and the core arrangement 17 has a further third component 31 .3 which is connected to the base body 30.
  • the third component 31.3 is at least partially tubular and has two bends 27.1, 27.2.
  • the first component 31 .1 leaves an inlet 20 which is used to be connected to an inlet area of a first, in particular curved, measuring tube and the second component 31.2 forms an outlet 21 which is used to have an outlet area a second, in particular curved measuring tube to be connected.
  • the third component 31.3 leaves behind a connection channel in the connection body formed after melting, which serves to connect the outlet area of the first measuring tube to the inlet area of the second measuring tube.
  • Fig. 6 shows a perspective view of a further embodiment of the measuring transducer - in particular of the connecting body 5 - and
  • Fig. 7 shows a sectional view of the embodiment of the measuring transducer of Fig. 6.
  • the connecting body is designed to releasably connect the measuring tube arrangement to a process line.
  • the connecting body 5 has pipe connection openings 9 to which the measuring tube arrangement is connected via the inlet and the outlet of the respective measuring tubes.
  • the connecting body 5 has a connecting channel 12 which connects the inlet of a first measuring tube with the outlet of a second measuring tube (see FIG. 1).
  • the connecting body 5 is at least in two parts and is preferably designed as a potting part, ie manufactured by means of an (injection) casting process.
  • the first part 32 has the pipe connection openings 9 and a section of the connecting channel 12, in particular a first inner jacket surface 34 (see FIG. 2), which limits the flow volume of the connecting channel 12.
  • the part of the connecting channel 12 of the first part 32 is at least partially open in a radial direction. This opening is closed by the second part 33.
  • the second part 33 is designed and set up as a closure for the connecting channel 12. For this purpose, it has a second inner lateral surface 35, which likewise limits the flow volume of the connecting channel in a radial direction perpendicular to the flow direction of the medium in the connecting channel 12. Together, the first part 32 and the second part 33 form the connecting channel 12.
  • the second part 33 can positively and / or non-positively - ie pressed, screwed, clamped, etc. - be connected to the first part. In that case, a sealing means can also be provided between the two parts 32, 33. Alternatively, it can also be materially connected to the first part 33 via an adhesive or ultrasonic welding.

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Abstract

L'invention concerne un capteur de mesure (1) d'un appareil de mesure (2) pour détecter un débit massique, une viscosité, une densité et/ou une grandeur dérivée correspondante d'une substance coulante, comprenant : un ensemble tuyau de mesure (4) conçu pour guider la substance coulante, les tuyaux de mesure (3) comprenant respectivement une admission (20) présentant une direction d'admission et une sortie (21) présentant une direction de sortie, la direction d'admission et la direction de sortie étant orientées de manière opposée, lesdits tuyaux de mesure (3) étant courbés au moins une fois, en particulier précisément une fois, entre l'admission (20) et la sortie (21) ; au moins un oscillateur (7) conçu pour faire osciller lesdits tuyaux de mesure (3) ; au moins un capteur d'oscillation (8) conçu pour détecter l'excursion des oscillations d'au moins un tuyau de mesure (3) ; et un corps de liaison (5) conçu pour relier de manière libérable l'ensemble tuyau de mesure (4) à une ligne de traitement (22), le corps de liaison (5) comprenant des ouvertures de raccord de tuyau (9) auxquelles l'ensemble tuyau de mesure (4) est raccordé, le corps de liaison (5) étant relié à l'admission (20) et à la sortie (21) du tuyau de mesure (3) respectif.
PCT/EP2020/085551 2019-12-19 2020-12-10 Capteur de mesure d'un appareil de mesure pour détecter un débit massique, une viscosité, une densité et/ou une grandeur dérivée correspondante d'une substance coulante WO2021122316A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019135303.3A DE102019135303B4 (de) 2019-12-19 2019-12-19 Messaufnehmer eines Messgerätes zum Erfassen eines Massedurchflusses, einer Viskosität, einer Dichte und/oder einer davon abgeleiteten Größe eines fließfähigen Mediums
DE102019135303.3 2019-12-19

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WO2021122316A1 true WO2021122316A1 (fr) 2021-06-24

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022113872A1 (de) * 2022-06-01 2023-12-07 Endress+Hauser Flowtec Ag Modulares Coriolis-Durchflussmessgerät

Citations (12)

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US4891991A (en) * 1986-10-28 1990-01-09 The Foxboro Company Coriolis-type mass flowmeter
US5038620A (en) * 1990-07-31 1991-08-13 Hughes Aircraft Company Coriolis mass flow meter
US5370002A (en) * 1993-07-23 1994-12-06 Micro Motion, Inc. Apparatus and method for reducing stress in the brace bar of a Coriolis effect mass flow meter
US20030097882A1 (en) * 2001-11-26 2003-05-29 Schlosser Martin Andrew Method of manufacturing a flowmeter for the precision measurement of an ultra-pure material flow
US20040040387A1 (en) * 2001-09-21 2004-03-04 Yuichi Nakao Arch-shaped tube type coriolis meter and method for determining shape of the coriolis meter
US6904667B2 (en) * 2000-03-02 2005-06-14 Micro Motion, Inc. Apparatus for and a method for fabricating a coriolis flowmeter formed primarily of plastic
EP1807681A2 (fr) 2004-11-04 2007-07-18 Endress+Hauser Flowtec AG Capteur de mesure de type vibratoire
EP2048480A2 (fr) * 2006-03-22 2009-04-15 Endress+Hauser Flowtec AG Capteur de mesure du type de vibration
US20100005906A1 (en) * 2008-07-09 2010-01-14 Keyence Corporation Flowmeter
WO2011099989A1 (fr) 2010-02-12 2011-08-18 Malema Engineering Corporation Procédés de fabrication et d'étalonnage de température d'un capteur de débit massique coriolis
WO2017091608A1 (fr) * 2015-11-24 2017-06-01 Malema Engineering Corporation Débitmètres massiques intégrés à effet coriolis
US20170343404A1 (en) * 2014-12-18 2017-11-30 Endress + Hauser Flowtec Ag Measuring Transducer of Vibration-Type

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US6526839B1 (en) 1998-12-08 2003-03-04 Emerson Electric Co. Coriolis mass flow controller and capacitive pick off sensor
DK1059515T3 (da) 1999-06-07 2008-11-10 Flowtec Ag Massegennemströmnings-målekredslöb i et Coriolis-massegennemströmnings/densitet-måleinstrument
US7546777B2 (en) 2006-03-22 2009-06-16 Endress + Hauser Flowtec Ag Measuring transducer of vibration-type

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4891991A (en) * 1986-10-28 1990-01-09 The Foxboro Company Coriolis-type mass flowmeter
US5038620A (en) * 1990-07-31 1991-08-13 Hughes Aircraft Company Coriolis mass flow meter
US5370002A (en) * 1993-07-23 1994-12-06 Micro Motion, Inc. Apparatus and method for reducing stress in the brace bar of a Coriolis effect mass flow meter
US6904667B2 (en) * 2000-03-02 2005-06-14 Micro Motion, Inc. Apparatus for and a method for fabricating a coriolis flowmeter formed primarily of plastic
US20040040387A1 (en) * 2001-09-21 2004-03-04 Yuichi Nakao Arch-shaped tube type coriolis meter and method for determining shape of the coriolis meter
US20030097882A1 (en) * 2001-11-26 2003-05-29 Schlosser Martin Andrew Method of manufacturing a flowmeter for the precision measurement of an ultra-pure material flow
EP1807681A2 (fr) 2004-11-04 2007-07-18 Endress+Hauser Flowtec AG Capteur de mesure de type vibratoire
EP2048480A2 (fr) * 2006-03-22 2009-04-15 Endress+Hauser Flowtec AG Capteur de mesure du type de vibration
US20100005906A1 (en) * 2008-07-09 2010-01-14 Keyence Corporation Flowmeter
WO2011099989A1 (fr) 2010-02-12 2011-08-18 Malema Engineering Corporation Procédés de fabrication et d'étalonnage de température d'un capteur de débit massique coriolis
US20170343404A1 (en) * 2014-12-18 2017-11-30 Endress + Hauser Flowtec Ag Measuring Transducer of Vibration-Type
WO2017091608A1 (fr) * 2015-11-24 2017-06-01 Malema Engineering Corporation Débitmètres massiques intégrés à effet coriolis
US10209113B2 (en) 2015-11-24 2019-02-19 Malema Engineering Corporation Integrated coriolis mass flow meters

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DE102019135303A1 (de) 2021-06-24

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