DE202022106293U1 - Assembly tool for assembling a plug-in flow meter - Google Patents

Abstract

Assembly tool (10) set up for assembling a measuring device (1) that can be inserted into a pipeline (20), such as a flow measuring device, in particular a thermal or magnetic-inductive flow measuring device, comprising:
- a receiving device (11) set up to receive a sensor neck (2.1) of the measuring device,
- a pointer device (12), which is designed to indicate an orientation of the assembly tool and is attached to the receiving device,
- a fastening device (13) which is set up to fasten the assembly tool to the sensor neck via at least three contact areas (14),
wherein the receiving device has a body (11.1) with two mutually parallel, in particular identical and superimposed end faces (11.11) and an edge surface (11.12) connecting the end faces, the body having an indentation (11.13) for receiving the sensor neck, the edge surface has at least two of the at least three contact areas,
wherein the body has a first marking (11.14) on at least one of the end faces, which is designed to be brought into line with a second marking (2.11) on the sensor neck (2.1),
wherein the pointing device has a pointer (12.1) which is set up to be aligned in the direction of a target orientation.

Description

The invention relates to an assembly tool for assembling and aligning a measuring device that can be inserted into a pipeline, such as a flow meter. Typically, such measuring devices have a sensor neck which connects a sensor located in the measuring tube to an electronic measuring/operating circuit. By means of a marking on a wall of the sensor neck, an orientation of a sensor of the flow measuring device can be set with an accuracy of a few angular degrees. the DE102017112622A1 shows such an exemplary thermal flow meter. It has been shown that this relatively rough adjustment accuracy is often insufficient to achieve good measurement accuracy for a measurand to be measured.

The task is therefore to propose a robust and precise ability to align a measuring device that can be inserted into a pipeline, such as a flow meter, for example.

The object is achieved by an assembly tool according to independent claim 1 and by an assembly arrangement according to independent claim 12.

• - eine Aufnahmevorrichtung eingerichtet zur Aufnahme eines Sensorhalses des Messgeräts,
• - eine Zeigervorrichtung, welche zur Anzeige einer Ausrichtung des Montagewerkzeugs eingerichtet ist und an der Aufnahmevorrichtung befestigt ist,
• - eine Befestigungsvorrichtung, welche dazu eingerichtet ist, das Montagewerkzeug am Sensorhals über mindestens drei Kontaktbereiche zu befestigen,

wobei die Aufnahmevorrichtung einen Körper mit zwei parallel zueinander verlaufenden, insbesondere gleichen und übereinanderliegenden Stirnflächen und eine die Stirnflächen verbindende Randfläche aufweist, wobei der Körper eine Einbuchtung zur Aufnahme des Sensorhalses aufweist, wobei die Randfläche mindestens zwei der mindestens drei Kontaktbereiche aufweist,
wobei der Körper auf zumindest einer der Stirnflächen jeweils eine erste Markierung aufweist, welche dazu eingerichtet ist, mit einer zweiten Markierung des Sensorhalses in Übereinstimmung gebracht zu werden,
wobei die Zeigervorrichtung einen Zeiger aufweist, welcher dazu eingerichtet ist, in Richtung einer Sollausrichtung ausgerichtet zu werden.An assembly tool according to the invention, set up for assembling a measuring device that can be inserted into a pipeline, such as a flow measuring device, in particular a thermal or magnetic-inductive flow measuring device, comprises:

• - a receiving device set up to receive a sensor neck of the measuring device,
• - a pointer device, which is set up to indicate an orientation of the assembly tool and is attached to the receiving device,
• - a fastening device which is designed to fasten the assembly tool to the sensor neck via at least three contact areas,

wherein the receiving device has a body with two mutually parallel, in particular identical and superimposed end faces and an edge surface connecting the end faces, the body having an indentation for receiving the sensor neck, the edge surface having at least two of the at least three contact areas,
wherein the body has a first marking on at least one of the end faces, which is designed to be brought into line with a second marking on the sensor neck,
wherein the pointing device comprises a pointer adapted to be aligned towards a target orientation.

In this way, a sensor that can be inserted into a pipeline can be aligned precisely and robustly with the aid of the assembly tool.

In one configuration, the fastening device has a screw device with a screw, which screw is set up to press the sensor neck against the contact areas of the edge surface, the screw forming one of the contact areas.

In this way, the assembly tool can be mounted precisely and firmly on the sensor neck.

In one embodiment, the screw has a screw axis, with the contact areas of the edge surface being arranged axially symmetrically with respect to the screw axis.

In this way, the assembly tool can be mounted even more precisely on the sensor neck.

In one embodiment, the pointer device has a length of at least 20 centimeters in a projection onto a plane.

Due to the minimum length, an alignment uncertainty can be minimized since, in the case of a rotation with an absolute tangential uncertainty, a pointer positioning becomes more and more precise as the length of the pointer increases with respect to an angle error.

In one embodiment, the body has a first marking on each end face, with the first markings being in particular the same in a projection onto a plane running through one of the end faces.

In this way, the handling of the assembly tool is simplified since a user always has a first marking in mind.

In one configuration, the receiving device has at least one of the following materials: metal such as stainless steel, a plastic, a wood, a composite material.

In one configuration, the receiving device has a surface coating which is, in particular, hydrophobic.

In this way, long-term mechanical stability of the recording device is ensured.

In one embodiment, a screw tip has a softer material than the sensor neck.

In this way, damage to the sensor neck can be avoided.

In one configuration, the body is set up with respect to the contact areas to hold the sensor neck when the assembly tool is positioned on the sensor neck
at least 200 angular degrees, and in particular at least 210 angular degrees and preferably at least 220 angular degrees
and or
at most 260 angular degrees, and in particular at most 250 angular degrees and preferably at most 240 angular degrees
to encompass.

In this way, a secure and robust seat of the assembly tool on the sensor neck can be ensured.

In one embodiment, the pointer has three contiguous sections, with a first section and a third section being connected by a second section,
wherein the first section and the third section are offset relative to one another perpendicularly to a plane running through one of the end faces,
wherein the offset caused by the second section is at least 5 centimeters and in particular at least 10 centimeters.

In one embodiment, a first end of the first marking facing the sensor neck is at a distance of at most 5 millimeters and in particular at most 3 millimeters from a wall of the sensor neck in the installed state.

As a result, an inaccuracy in the adjustment of the assembly tool on the sensor neck can be minimized.

• eine Rohrleitung zum Führen eines Mediums;
• ein in die Rohrleitung einsteckbares Messgerät wie beispielsweise ein Durchflussmessgerät, insbesondere ein thermisches oder magnetisch-induktives Durchflussmessgerät;
• ein Montagewerkzeug nach einem der vorigen Ansprüche, welches an einem Sensorhals des Messgeräts zur Ausrichtung des Messgeräts bzgl. der Rohrleitung angeordnet ist.
• So kann dass Messgerät bzgl. der Rohrleitung ausgerichtet werden.

A mounting arrangement according to the invention comprises:

• a pipeline for guiding a medium;
• a measuring device that can be inserted into the pipeline, such as a flow meter, in particular a thermal or magnetic-inductive flow meter;
• an assembly tool according to any one of the preceding claims, which is arranged on a sensor neck of the measuring device for aligning the measuring device with respect to the pipeline.
• In this way, the measuring device can be aligned with the pipeline.

• - einen Sensor zum Bereitstellen von Messsignalen einer Durchflussmessgröße, insbesondere mit zumindest zwei Sonden, wobei zumindest eine der Sonden zum Heizen eines durch die Rohrleitung strömenden Mediums eingerichtet ist, und wobei zumindest eine der Sonden zum Erfassen einer Temperatur des Mediums eingerichtet ist,
• - ein Gehäuse mit einer im Gehäuse angeordneten elektronischen Mess-/Betriebsschaltung zum Betreiben der Sonden, zum Auswerten von Messsignalen der Sonden und zum Bereitstellen von Messwerten einer Messgröße,
• - einen Sensorhals, welcher den Sensor mit dem Gehäuse verbindet und elektrische Leitungen zwischen elektronischer Mess-/Betriebsschaltung und Sonden führt, wobei der Sensorhals dazu eingerichtet ist, durch eine Öffnung einer Wandung der Rohrleitung geführt und mediendicht mit der Wandung abgeschlossen zu werden,

wobei in einem ersten Verfahrensschritt das Montagewerkzeug am Sensorhals ausgerichtet und befestigt wird,
wobei in einem zweiten Verfahrensschritt der Sensor durch die Öffnung der Wandung geführt wird sowie die Zeigervorrichtung beispielsweise parallel zu einer Rohrleitungsachse, ausgerichtet wird,
wobei in einem dritten Verfahrensschritt, der Sensorhals mittels eines Verschlussmechanismus dicht mit der Wandung abgeschlossen wird.In an exemplary method for setting up a measuring device that can be plugged into a pipeline, such as a flow measuring device, in particular a thermal or magnetic-inductive flow measuring device, the measuring device comprises the following:

• - a sensor for providing measurement signals of a measured flow variable, in particular with at least two probes, wherein at least one of the probes is set up for heating a medium flowing through the pipeline, and wherein at least one of the probes is set up for detecting a temperature of the medium,
• - a housing with an electronic measuring/operating circuit arranged in the housing for operating the probes, for evaluating measurement signals from the probes and for providing measured values of a measurand,
• - a sensor neck, which connects the sensor to the housing and leads electrical lines between the electronic measuring/operating circuit and the probes, the sensor neck being designed to be guided through an opening in a wall of the pipeline and sealed off with the wall in a media-tight manner,

in a first method step, the assembly tool is aligned and fastened to the sensor neck,
in a second method step, the sensor is passed through the opening in the wall and the pointer device is aligned, for example, parallel to a pipeline axis,
in a third method step, the sensor neck is sealed tightly to the wall by means of a locking mechanism.

• 1 zeigt ein beispielhaftes erfindungsgemäßes Montagewerkzeug;
• 2 zeigt eine Ausschnittsvergrößerung des in 1 gezeigten Montagewerkzeugs;
• 3 zeigt eine Ausschnittsvergrößerung des in 1 gezeigten, an einem Sensorhals montierten Montagewerkzeugs;
• 4 skizziert eine Montageanordnung mit einem in eine Rohrleitung einsteckbaren Messgerät mit einem Sensorhals, an welchem ein beispielhaftes erfindungsgemäßes Montagewerkzeug befestigt ist;
• 5 skizziert ein in eine Rohrleitung einsteckbares Messgerät mit einem Sensorhals, an welchem ein beispielhaftes erfindungsgemäßes Montagewerkzeug befestigt ist;
• 6 zeigt eine Schrägansicht eines in eine Rohrleitung steckbaren Messgeräts;
• 7 skizziert den Ablauf eines beispielhaften Verfahrens zur Einrichtung eines in eine Rohrleitung einsteckbaren Messgeräts.

The invention is described below using exemplary embodiments.

• 1 shows an exemplary assembly tool according to the invention;
• 2 shows an enlarged detail of the in 1 mounting tool shown;
• 3 shows an enlarged detail of the in 1 mounting tool shown mounted on a sensor neck;
• 4 outlines an assembly arrangement with a measuring device that can be inserted into a pipeline and has a sensor neck, to which an exemplary assembly tool according to the invention is fastened;
• 5 outlines a measuring device that can be inserted into a pipeline and has a sensor neck, to which an exemplary assembly tool according to the invention is attached;
• 6 shows an oblique view of a measuring device that can be plugged into a pipeline;
• 7 outlines the flow of an exemplary method for setting up a measuring device that can be plugged into a pipeline.

1 shows a top view of an exemplary assembly tool 10 according to the invention, which has a receiving device 11 for receiving a sensor neck 2.1 (not shown here) of a measuring device that can be plugged into a pipeline, a pointer device 12 with a pointer 12.1 for aligning the assembly device and a fastening device 13 for fastening to the sensor neck includes. The receiving device comprises a body 11.1 with two mutually parallel, here in particular identical and superimposed end faces 11.11 and an edge surface 11.12 connecting the end faces, the body having an indentation 11.13 for receiving the sensor neck.

In one embodiment, a pointer 12.1 of the pointing device has a length of at least 20 centimeters when projected onto a plane. In this way, a sufficiently precise alignment of the measuring device can be achieved in a simple manner, since, in the case of a rotation with an absolute tangential uncertainty, a pointer positioning becomes more and more accurate as the length of the pointer increases with regard to an angle error.

2 shows an enlarged detail of the in 1 assembly tool shown in the area of the receiving device.

According to the invention, the body has a first marking 11.14 with a first end 11.141 on at least one of the end faces 11.11, which first end is designed to be brought into line with a second marking 2.11 of the sensor neck 2.1, see also 3 , which shows an enlarged detail of the assembly tool attached to a sensor neck 2.1. The fastening device 13 with a screw device 13.1 is set up to attach the assembly tool to the sensor neck via at least three contact areas 14 (see also 3 ) between assembly tool 10 and sensor neck 2.11, with the edge surface in the area of the indentation comprising at least two of the at least three contact areas 14, and with a screw tip 13.112 of screw 13.11 forming a further contact area 14.

In one embodiment, the body 11 is set up with respect to the contact areas 14 to the sensor neck when positioning the assembly tool 10 on the sensor neck 2.1
at least 200 angular degrees, and in particular at least 210 angular degrees and preferably at least 220 angular degrees
and or
at most 260 angular degrees, and in particular at most 250 angular degrees and preferably at most 240 angular degrees
to encompass.

In this way, a secure seat of the assembly tool on the sensor neck can be ensured when fastening, for example, via three contact areas.

In one embodiment, the screw 13.11 has a screw axis 13.111, the contact areas 14 of the edge surface 11.12 being arranged axially symmetrically with respect to the screw axis.

In one embodiment, the screw tip is made of a softer material than the sensor neck, so that damage to the sensor neck is avoided.

In one embodiment, the body has a first marking on each end face, with the first markings being in particular the same in a projection onto a plane running through one of the end faces. In this way, the handling of the assembly tool is simplified since a user always has a first marking in mind.

In one configuration, the receiving device has at least one of the following materials: metal such as stainless steel, a plastic, a wood, a composite material.

In one configuration, the receiving device has a surface coating which is, in particular, hydrophobic. In this way, long-term mechanical stability of the recording device is ensured.

In an embodiment of the assembly tool as in 3 shown, the first end 11.141 of the first marking 11.14 facing the sensor neck 2.1 has a distance of at most 5 millimeters and in particular at most 3 millimeters from a wall of the sensor neck in the assembled state. In this way, an alignment error of the assembly tool relative to the sensor neck can be reduced.

4 shows a schematic oblique view of a mounting arrangement 40 with a measuring device 1 installed in a pipeline and comprising a sensor 2 (see 6 ), a housing 3 and an electronic measuring/operating circuit 4 arranged in the housing (see 6 ), the sensor and housing being connected via a sensor neck 2.1, to which sensor neck an exemplary assembly tool 10 according to the invention is attached. In general, an alignment error of the assembly tool can be kept smaller the smaller the distance between the assembly tool and the measuring tube.

5 outlines one 4 corresponding oblique view, showing an exemplary embodiment of the assembly tool according to the invention, the pointer 12.1 having three contiguous sections, a first section 12.11 and a third section 12.13 being connected by a second section 12.12, the first section and the third section being offset 12.14 perpendicular to a plane running through one of the end faces, the offset caused by the second section being at least 5 centimeters and in particular at least 10 centimeters. In this way, the pointer can be better aligned, for example, along a measuring tube or a measuring tube axis.

The pluggable measuring device 1 can, for example, be a flow measuring device, in particular a thermal or magnetic-inductive flow measuring device.

6 outlines an exemplary measuring device 1 which can be inserted into a pipeline and which can be installed using an assembly tool 10 according to the invention as shown in FIG 1 until 5 shown is adjustable. Such a measuring device has a housing 3 for an electronic measuring/operating circuit 4 for operating the measuring device, such an electronic measuring/operating circuit 4, a sensor 2 and a sensor neck, which sensor neck 2.1 connects the sensor to the housing.

7 outlines the course of an exemplary method, with the assembly tool being aligned and fastened to the sensor neck in a first method step 101, with the sensor being guided through the opening in the wall and the pointer device in a second method step 102 in the direction of a desired alignment, for example parallel to a pipeline axis is aligned, wherein in a third method step 103, the sensor neck is sealed with the wall by means of a locking mechanism. A locking mechanism, as indicated by the nut, is used to tightly seal the sensor neck with a wall of the pipeline. For example, the sensor can also first be guided through the opening in the wall and then the assembly tool can be applied.

In this way, the sensor of a measuring device can be aligned precisely and securely in the measuring tube.

Reference List

1

gauge

2

sensor

2.1

sensor neck

2.11

second mark

3

Housing

4

electronic measurement/operation circuit

10

assembly tool

11

recording device

11.1

Body

11.11

face

11.12

edge surface

11.13

indentation

11.14

first mark

11.141

first end of first mark

12

pointing device

12.1

pointer

12.11

first section

12.12

second part

12.13

third section

12.14

offset

13

fastening device

13.1

screw device

13.11

screw

13.111

screw axis

13.112

screw tip

14

contact area

20

pipeline

21

wall

21.1

opening

40

mounting arrangement

100

procedure

101

first step in the process

102

second process step

103

third step

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited 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

• DE 102017112622 A1 [0001]

Claims (12)

Assembly tool (10) set up for assembling a measuring device (1) that can be inserted into a pipeline (20), such as a flow measuring device, in particular a thermal or magnetic-inductive flow measuring device, comprising: - a receiving device (11) set up to receive a sensor neck (2.1) of the measuring device, - a pointer device (12), which is designed to indicate an orientation of the assembly tool and is attached to the receiving device, - a fastening device (13) which is set up to fasten the assembly tool to the sensor neck via at least three contact areas (14), wherein the receiving device has a body (11.1) with two mutually parallel, in particular identical and superimposed end faces (11.11) and an edge surface (11.12) connecting the end faces, the body having an indentation (11.13) for receiving the sensor neck, the edge surface has at least two of the at least three contact areas, wherein the body has a first marking (11.14) on at least one of the end faces, which is designed to be brought into line with a second marking (2.11) on the sensor neck (2.1), wherein the pointing device has a pointer (12.1) which is set up to be aligned in the direction of a target orientation. assembly tool claim 1 , wherein the fastening device (13) has a screw device (13.1) with a screw (13.11), which screw is set up to press the sensor neck against the contact areas (14) of the edge surface (11.12), the screw one of the contact areas (14 ) trains. assembly tool claim 2 , wherein the screw (13.11) has a screw axis (13.111), the contact areas (14) of the edge surface (11.12) being arranged axially symmetrically with respect to the screw axis. Assembly tool according to one of the preceding claims, in which the pointer (12.1) has a length of at least 20 centimeters when projected onto a plane. Assembly tool according to one of the preceding claims, wherein the body (11.1) has a first marking (11.14) on each end face (11.11), the first markings being in particular the same in a projection onto a plane running through one of the end faces. Assembly tool according to one of the preceding claims, wherein the receiving device (11) has at least one of the following materials: a metal such as stainless steel, a plastic, a wood, a composite material. Assembly tool according to one of the preceding claims, wherein the receiving device (11) has a surface coating which is in particular hydrophobic. Assembly tool according to one of the preceding claims, in which a screw tip (13.112) has a softer material than the sensor neck. Assembly tool according to one of the preceding claims, wherein the body (11) with respect to the contact areas (14) is set up so that when the assembly tool (10) is positioned on the sensor neck (2.1), the sensor neck is at least 200 angular degrees, and in particular at least 210 angular degrees and preferably at least 220 degrees of angle and or at most 260 angular degrees, and in particular at most 250 angular degrees and preferably at most 240 angular degrees to encompass. Assembly tool according to one of the preceding claims, wherein the pointer (12.1) has three contiguous sections, a first section (12.11) and a third section (12.13) being connected by a second section (12.12), wherein the first section and the third section have an offset (12.14) to one another perpendicularly to a plane running through one of the end faces, wherein the offset caused by the second section is at least 5 centimeters and in particular at least 10 centimeters. Assembly tool according to one of the preceding claims, wherein a first end (11.141) of the first marking (11.14) facing the sensor neck (2.1) has a distance of at most 5 millimeters and in particular at most 3 millimeters in the installed state. Mounting arrangement (40) comprising: a pipeline (20) for guiding a medium; a measuring device (1) that can be inserted into the pipeline, such as a flow meter, in particular a thermal or magnetic-inductive flow meter; an assembly tool (10) according to one of the preceding Claims, which is arranged on a sensor neck of the measuring device for aligning the measuring device with respect to the pipeline.

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