WO2004090480A2 - Appareil de mesure servant a determiner et/ou surveiller une grandeur de processus - Google Patents

Appareil de mesure servant a determiner et/ou surveiller une grandeur de processus Download PDF

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Publication number
WO2004090480A2
WO2004090480A2 PCT/EP2004/003719 EP2004003719W WO2004090480A2 WO 2004090480 A2 WO2004090480 A2 WO 2004090480A2 EP 2004003719 W EP2004003719 W EP 2004003719W WO 2004090480 A2 WO2004090480 A2 WO 2004090480A2
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
union nut
connecting section
housing
neck
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2004/003719
Other languages
German (de)
English (en)
Other versions
WO2004090480A3 (fr
Inventor
Amir Vahid-Yousefnia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Endress and Hauser SE and Co KG
Original Assignee
Endress and Hauser SE and Co KG
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 and Hauser SE and Co KG filed Critical Endress and Hauser SE and Co KG
Publication of WO2004090480A2 publication Critical patent/WO2004090480A2/fr
Publication of WO2004090480A3 publication Critical patent/WO2004090480A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/245—Housings for sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves

Definitions

  • Measuring device for determining and / or monitoring a process variable
  • the invention relates to a measuring device for determining and / or monitoring a physical or chemical process variable of a medium, with at least one sensor that has at least one sensor neck facing away from the process, and with at least one housing that has at least one connecting section facing the process for connecting the sensor to the housing.
  • the measuring device is, for example, a
  • the process variables can also be pressure, viscosity or density e.g. trade a liquid in a container.
  • the applicant manufactures and sells measuring devices for determining the fill level under the name "Micropilot". With these measuring or field devices, a microwave signal is emitted in the direction of the medium and, for example, the fill level is calculated from the transit time of the reflected signal.
  • Such and many other measuring devices consist at least of the actual measuring sensor, in which for example the transmitter and receiver are located, and a housing, in which, for example, the evaluation electronics and a display or other communication unit are housed.
  • This modular design of the measuring device allows the housing and sensor to be exchanged separately However, it is important that the sensor and the housing have to be connected well and securely. There are several points to consider. To ensure easy interchangeability on site, the connection should be as easy as possible.
  • the built-in sensor remains rotatable so that, for example, the display unit can be aligned so that it is easily accessible to the user.
  • the sensor and the housing are connected to each other via cables and wires. Therefore, the connection should be such that the cables during assembly, if at all, not or only as little as possible.
  • the connection should also allow the interior of the sensor and housing to be sealed against environmental influences and the medium.
  • a variant is that e.g. the sensor is inserted into the housing. A threaded screw is then screwed through the housing against the sensor neck.
  • a disadvantage is that such a connection with different materials - e.g. Metal and plastic - the sensor and housing is not without problems.
  • the transition area sensor housing is usually sealed against the environment by an O-ring and e.g. mechanically fixed by a grub screw. Due to the selective one-sided pressure of the grub screw on the O-ring, a leak is usually formed on the opposite side of the O-ring. This procedure is therefore unsatisfactory.
  • Another variant is that the sensor and housing are screwed together using threads. Disadvantages are that this prevents a quick disconnection and that the rotation creates difficulties for the wiring.
  • the sensor neck and the connecting section are configured such that the sensor neck can be inserted into the connecting section, or that the connecting section can be inserted into the sensor neck, that the sensor neck and / or the connecting section has a thread engagement that a union nut is provided which can be screwed onto the threaded engagement, that a clamping ring is provided between the union nut and the threaded engagement, and that the union nut is designed such that the union nut is screwed onto the threaded engagement of the clamping ring presses against the sensor neck and / or against the connecting section.
  • the sensor neck is inserted into the connecting section or the connecting section is inserted into the sensor neck.
  • At least the other component when the sensor neck is inserted into it, has a thread engagement, that is to say an external thread.
  • the thread engagement and the union nut are designed so that the union nut is screwed onto the thread engagement.
  • the actual connection and the sensor holding connection is then established via the clamping ring.
  • This clamping ring consists for example of a metal.
  • This pressure of the clamping ring creates a friction connection that prevents it from slipping out.
  • the advantage is that this fastening affects the full extent of the inserted component and not just selectively.
  • the housing can still be rotated without any problems, for example to optimally align the display unit.
  • Another advantage is the very easy loosening of the connection, whereby loosening the union nut is sufficient.
  • different sensor and housing materials pose no difficulties.
  • the thread engagement has at least one bevel. Associated with this is an embodiment which includes that the bevel of the thread engagement has an angle of approximately 45 °. These configurations serve to press the clamping ring against the sensor neck or against the connecting section.
  • the union nut has at least one section with a smaller inner diameter than the internal thread of the union nut. On the one hand, this section can serve, before screwing, that the clamping ring cannot fall down. On the other hand, this section is a very simple embodiment, by means of which the clamping ring is pressed against the thread engagement and against the sensor neck or connecting section.
  • the union nut has at least one bevel.
  • a further embodiment includes that the union nut has a bevel in the section with the smaller inside diameter.
  • the screwing force acting parallel to the sensor axis can be optimally and concentrically deflected onto the clamping ring.
  • a further embodiment is also associated with the last two embodiments, which includes that the bevel of the union nut has an angle of approximately 45 °. With these bevels - with the union nut and with thread engagement - the narrow area is in the outer direction and the bevels open towards the interior of the sensor and housing. Due to the angle in the range of 45 °, there is above all a very good concentric force transmission and force effect on the clamping ring, which enables the sensor and housing to be fixed radially.
  • Fig. 2 another embodiment of the invention.
  • Fig. 1 shows an embodiment of the measuring device consisting of the sensor 1 and the housing 10, in which e.g. Evaluation electronics, communication electronics, interfaces, operating and display units are located.
  • Section A of FIG. 1 is shown enlarged in FIG. 1 a.
  • the sensor neck 5 is inserted into the connecting section 15 of the housing 10.
  • the sensor neck 5 and the connecting section 15 are cylindrical in the area of the connection between the sensor 1 and the housing 10.
  • the connecting section 15 therefore also has the threaded engagement 20 to which the union nut 25 is screwed.
  • This clamping ring 30 can be made of metal, for example.
  • the exertion of pressure is optimized by the configuration of the bevels 27 and 21 of the union nut 25 and the threaded engagement 20. These bevels also bring about a wide area on which the clamping ring 30 rests on the sensor neck 5. This pressure creates a friction connection between the sensor 1 and the housing 10.
  • An O-ring 40 which seals the housing 10 and the sensor 1, is located above the clamping ring 30 in the direction of the housing 10 in a correspondingly designed recess 35.
  • connection section 15 being inserted into the sensor neck 5 in the case shown.
  • This configuration is thus a mirrored version of the example in FIG. 1. Accordingly, the section 26 with a smaller inside diameter of the union nut 25 also sits on the threaded engagement 5 from the housing side, and the O-ring 40 in the recess 35 is located in FIG Direction of sensor 1 and thus in the direction of the process. LIST OF REFERENCE NUMBERS

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

L'invention concerne un appareil de mesure servant à déterminer et/ou surveiller une grandeur de processus. Cet appareil de mesure comprend un capteur (1) pourvu d'un cou de capteur (5), ainsi qu'un logement (10) doté d'une section de liaison (15). Cette invention est caractérisée : en ce que le cou de capteur (5) et la section de liaison (15) sont configurés de façon que le cou de capteur (5) puisse être inséré dans la section de liaison (15) ou de manière que la section de liaison (15) puisse être introduite dans le cou de capteur (5) ; en ce que le cou de capteur (5) ou la section de liaison (15) comporte un élément de contact fileté (20) ; en ce qu'un écrou d'accouplement (25) est prévu et peut être vissé sur l'élément de contact fileté (20) ; en ce qu'une bague de serrage (30) est prévue entre l'écrou d'accouplement (25) et l'élément de contact fileté (20), et ; en ce que l'écrou d'accouplement (25) est configuré de façon que le vissage de celui-ci (25) sur l'élément de contact fileté (20) pousse la bague de serrage (30) contre le cou de capteur (5) et/ou contre la section de liaison (15).
PCT/EP2004/003719 2003-04-08 2004-04-07 Appareil de mesure servant a determiner et/ou surveiller une grandeur de processus Ceased WO2004090480A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10316299.2 2003-04-08
DE2003116299 DE10316299B4 (de) 2003-04-08 2003-04-08 Messgerät zur Bestimmung und/oder Überwachung einer Prozessgröße

Publications (2)

Publication Number Publication Date
WO2004090480A2 true WO2004090480A2 (fr) 2004-10-21
WO2004090480A3 WO2004090480A3 (fr) 2005-02-10

Family

ID=33038966

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/003719 Ceased WO2004090480A2 (fr) 2003-04-08 2004-04-07 Appareil de mesure servant a determiner et/ou surveiller une grandeur de processus

Country Status (2)

Country Link
DE (1) DE10316299B4 (fr)
WO (1) WO2004090480A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1783465A1 (fr) 2005-11-07 2007-05-09 GE Security, Inc Dispositif et appareil pour maintenir un transducteur
WO2008092793A1 (fr) * 2007-02-01 2008-08-07 Endress+Hauser Wetzer Gmbh+Co. Kg Dispositif permettant de déterminer et/ou de contrôler des variables de processus

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007005897A1 (de) * 2007-02-01 2008-08-07 Endress + Hauser Wetzer Gmbh + Co Kg Vorrichtung zur Bestimmung und/oder Überwachung einer Prozessgröße
DE102012110167B4 (de) 2012-10-24 2014-06-18 Sick Ag Sensor
DE102012112753A1 (de) * 2012-12-20 2014-06-26 Sick Ag Reflektorgehäuse für einen optoelektronischen Sensor
DE102012112872A1 (de) * 2012-12-21 2014-07-10 Conti Temic Microelectronic Gmbh Sensoranordnung und Verfahren zur Herstellung einer Sensoranordnung
DE102018132089B4 (de) 2018-12-13 2023-03-30 Endress+Hauser Flowtec Ag Feldgerät

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Publication number Priority date Publication date Assignee Title
DE2826657A1 (de) * 1978-06-19 1979-12-20 Flux Geraete Gmbh Abdichtung
DE8306061U1 (de) * 1983-03-03 1983-06-16 Degussa Ag, 6000 Frankfurt Anschlussgehaeuse fuer messwertaufnehmer
DE8332045U1 (de) * 1983-11-08 1984-02-23 Endress U. Hauser Gmbh U. Co, 7867 Maulburg Ultraschallsensor eines Füllstandsmeßgerätes
DE8817213U1 (de) * 1988-03-18 1994-06-30 Hottinger Baldwin Messtechnik GmbH, 64293 Darmstadt Einrichtung zur Anzeige eines Meßergebnisses
DE3933689A1 (de) * 1989-10-09 1991-04-11 Weber Guenther Gehaeuse
DE4444715C2 (de) * 1994-12-15 1998-07-02 Mannesmann Vdo Ag Induktiver Drehzahlgeber
DE29619628U1 (de) * 1995-11-30 1997-04-10 Hiss, Eckart, Dr., 24105 Kiel Strömungsüberwachungsgerät
WO1998057186A2 (fr) * 1997-06-09 1998-12-17 Magnetrol International, Inc. Boitier d'instrument a double compartiment
DE19724309B4 (de) * 1997-06-10 2007-01-18 Ifm Electronic Gmbh Sensorgehäuse mit Prozeßanschluß
DE19802771A1 (de) * 1998-01-26 1999-07-29 Karl Bernhard Nuechter Kombiniertes Mano-Thermometer
ATE271214T1 (de) * 1998-03-18 2004-07-15 Grieshaber Vega Kg Mikrowellen-füllstandsmessgerät geeignet zum betrieb bei hohen temperaturen und/oder hohen drücken und/oder chemisch aggressiver umgebung
DE29804930U1 (de) * 1998-03-19 1998-07-02 Kobold, Klaus, Antwerpen Meßanzeigevorrichtung
DE59811545D1 (de) * 1998-09-02 2004-07-15 Endress & Hauser Gmbh & Co Kg Messaufnehmer
US6325535B1 (en) * 1999-08-23 2001-12-04 Petro-Chem Development Co., Inc. In-situ radiant heat flux probe cooled by suction of ambient air
DE10124678A1 (de) * 2001-05-18 2002-11-21 Endress & Hauser Gmbh & Co Kg Prozeßanschluß
DE10124933A1 (de) * 2001-05-21 2002-11-28 Endress & Hauser Gmbh & Co Kg Anordnung aus einem metallischen Deckel und einem metallischem Gehäuse eines Meßgerätes und Verfahren zu deren Herstellung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1783465A1 (fr) 2005-11-07 2007-05-09 GE Security, Inc Dispositif et appareil pour maintenir un transducteur
US7247979B2 (en) 2005-11-07 2007-07-24 Ge Security, Inc. Device and apparatus for holding a transducer
WO2008092793A1 (fr) * 2007-02-01 2008-08-07 Endress+Hauser Wetzer Gmbh+Co. Kg Dispositif permettant de déterminer et/ou de contrôler des variables de processus

Also Published As

Publication number Publication date
DE10316299B4 (de) 2010-11-11
DE10316299A1 (de) 2004-10-28
WO2004090480A3 (fr) 2005-02-10

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