System for detecting a measurement variable of a fluid conducted in a fluid-conducting line, flow-through device for arranging on a fluid-conducting line and for attaching a flowmeter, and use of a flow-through device

Patent metadata

Field	Value
Publication number	US-2025277686-A1
Application number	US-202318862124-A
Country	US
Kind code	A1
Filing date	May 2, 2023
Priority date	May 4, 2022
Publication date	Sep 4, 2025
Grant date	—

Abstract

A system for detecting a measurement variable of a fluid being conducted in a fluid-conducting line, having a flowmeter for detecting the measurement variable, a flow-through device for arranging on the fluid-conducting line and for attaching the flowmeter. The flowmeter has a first and second connection and a measurement region which is arranged between the first connection and the second connection and which can be coupled to the flowmeter. The first connection, the measurement region, and the second connection define a flow path for the fluid through the flow-through device.

First claim

1 . A system for detecting a measurement variable of the fluid conducted by a fluid-conducting line, said system having:
a flowmeter, in particular an ultrasonic flowmeter, for detecting the measurement variable, a flow-through device for arranging on the fluid-conducting line and for attaching the flowmeter for detecting the measurement variable of the fluid conducted by the line, wherein the flow-through device has: a first and a second connection by means of which the flow-through device can be connected to the fluid-conducting line, a measurement region arranged between the first connection and the second connection, which can be coupled to the flowmeter for detecting the measurement variable, wherein the first connection, the measurement region and the second connection define a flow path for the fluid through the flow-through device, wherein the measurement region has at least two contact surfaces which extend at least partly along the flow path for contacting the flowmeter, wherein the at least two contact surfaces are designed to secrete a coupling agent when a contact pressure is applied, and wherein the flowmeter is designed such that by coupling the flowmeter to the measurement region, the flowmeter exerts at least the contact pressure on the at least two contact surfaces.

2 . The system according to claim 1 , wherein the at least two contact surfaces comprise an elastomer and/or thermoplastic elastomer.

3 . The system according to claim 1 , wherein the contact pressure is at least about 0.7 N/mm 2 .

4 . The system according to claim 1 , wherein the flowmeter has a holder for the measurement region, wherein in an open state of the flowmeter the measurement region can be received by the holder and/or can be removed from the holder, and wherein in a closed state of the flowmeter the measurement region is enclosed by the flowmeter at least in portions along the flow path.

5 . The system according to claim 4 , wherein the measurement region, seen transversely to the flow path, has an overhang compared to the holder in the closed state of the flowmeter.

6 . The system according to claim 1 , wherein the measurement region has six contact surfaces which extend at least in portions along the flow path, wherein the six contact surfaces are arranged relative to one another such that the flow path has a substantially hexagonal cross section.

7 . The system according to claim 4 , wherein the holder in the closed state of the flowmeter has a substantially hexagonal cross section.

8 . The system according to claim 1 , wherein the measurement region has a preferably monolithic measuring body to which the contact surfaces are attached.

9 . The system according to claim 1 , wherein the measuring body is substantially dimensionally stable under the action of the contact pressure, and/or wherein the measuring body is made of a thermoplastic material.

10 . The system according to claim 1 , wherein the coupling agent comprises an external plasticizer and/or extender that is liquid or that liquefies under pressure, wherein the external plasticizer and/or extender that is liquid or that liquefies under pressure is oily.

11 . The system according to claim 10 , wherein the coupling agent comprises white oil or paraffin.

12 . The system according to claim 4 , wherein the flowmeter has a first housing part and a second housing part which is movable relative to the first housing part, and wherein the first and second housing parts together form the holder for the measurement region.

13 . The system according to claim 1 , wherein the first connection and the second connection are detachably connectable to the measurement region.

14 . A flow-through device for arranging on a fluid-conducting line and for attaching an ultrasonic flowmeter, for detecting a measurement variable of the fluid conducted by the line, wherein the flow-through device has:
a first and a second connection by means of which the flow-through device can be connected to the fluid-conducting line, a measurement region arranged between the first connection and the second connection, which can be coupled to the flowmeter for detecting the measurement variable, wherein the first connection, the measurement region and the second connection define a flow path for the fluid through the flow-through device, wherein the measurement region has at least two contact surfaces which extend at least partly along the flow path for contacting the flowmeter, wherein the at least two contact surfaces are configured to secrete a coupling agent when a contact pressure is applied.

15 . A use of a flow-through device according to claim 14 for detecting a measurement variable of the fluid conducted by a fluid-conducting line, wherein the following are provided:
arranging the flow-through device on the line; and
attaching a flowmeter to the measurement region, wherein due to the attachment of the flowmeter to the measurement region, the flowmeter exerts at least the contact pressure on the contact surfaces.

16 . The system according to claim 1 , wherein the thermoplastic elastomer is selected from the group consisting of polyether block amides, (co)polyesters, polyurethanes, polyolefins, crosslinked thermoplastic elastomers, styrene block copolymers, and silicones, individually or in combination

17 . The system according to 1 , wherein the contact pressure is at least about 1 N/mm 2 .

18 . The system according to claim 1 , wherein the contact pressure is at least about 1.3 N/mm 2 .

Assignees

• Sartorius Stedim Biotech Gmbh

Inventors

• Bode Matthias
• Aue Norbert
• Götemann Sina
• Santos De Matos Fortuna Ana Raquel
• Firneisen Svenja

Classifications

• G01F15/185

  Connecting means, e.g. bypass conduits · CPC title

• G01F15/006

  characterised by the use of a particular material, e.g. anti-corrosive material (G01F15/14 takes precedence) · CPC title

• G01F1/662 Primary

  Constructional details · CPC title

• G01F1/667 Primary

  Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters · CPC title