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WO2001061362A1 - Dispositif de controle et de visualisation du maintien d'une condition de fonctionnement - Google Patents

Dispositif de controle et de visualisation du maintien d'une condition de fonctionnement Download PDF

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Publication number
WO2001061362A1
WO2001061362A1 PCT/DE2001/000559 DE0100559W WO0161362A1 WO 2001061362 A1 WO2001061362 A1 WO 2001061362A1 DE 0100559 W DE0100559 W DE 0100559W WO 0161362 A1 WO0161362 A1 WO 0161362A1
Authority
WO
WIPO (PCT)
Prior art keywords
acceleration
elements
exceeded
monitoring
operating condition
Prior art date
Application number
PCT/DE2001/000559
Other languages
German (de)
English (en)
Inventor
Bernhard Brendel
André-Heinrich MEINHOF
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2001061362A1 publication Critical patent/WO2001061362A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/03—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means
    • G01P15/032—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means by measuring the displacement of a movable inertial mass
    • G01P15/036—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means by measuring the displacement of a movable inertial mass for indicating predetermined acceleration values
    • 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
    • G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
    • G01D1/18—Measuring arrangements giving results other than momentary value of variable, of general application with arrangements for signalling that a predetermined value of an unspecified parameter has been exceeded
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/04—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses for indicating maximum value
    • G01P15/06—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses for indicating maximum value using members subjected to a permanent deformation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions

Definitions

  • the invention relates to a device for monitoring and indicating compliance with an operating condition of a technical device according to the preamble of claim 1.
  • operating conditions are usually prescribed that should be observed in the special application to ensure safe operation of the process device.
  • a permissible range for an operating parameter for example a temperature range from -20 to +80 ° C for the operating temperature, can be prescribed as the operating condition.
  • Temperature differences, pressure, differential pressure, voltage, voltage difference, acceleration or shock loading may be mentioned as further possible operating parameters.
  • an exhaust gas flap control for large diesel generators in which a media flow to be controlled does not flow at a constant flow rate in a pipeline, but rather acts on the actuator with so-called exhaust disks, strong mechanical vibrations occur which propagate to the positioner.
  • Accelerations can occur here that exceed the permissible range of acceleration and can lead to damage or destruction of the process device. These accelerations can be additionally amplified by resonance effects if the positioner is held on the actuator by vibration-capable fastening means, for example fastening angles. The cause of a device failure is difficult to determine. A solution could be in a subsequent, complex, metrological examination or in a subjective assessment of the occurring Vibrations can be seen on site. This examination had the disadvantage, however, that peak values which had occurred in the past and which may have caused the device to be destroyed can no longer be detected. In addition, such measurements are very time consuming and can in particular ⁇ sondere lead to an incorrect fault diagnosis in the case of irregular or sporadically occurring limit exceedances.
  • the invention has for its object to provide a device for monitoring and indicating compliance with an operating condition of a technical device, with which m a simple way and without great effort a detection of a violation of an operating condition is possible.
  • the new device of the type mentioned has the features specified in the characterizing part of claim 1.
  • Advantageous developments of the invention are described in the subclaims.
  • the invention has the advantage that objective evidence of the past violation of an operating conditions can be provided.
  • An example of a device for monitoring compliance with a permissible temperature range is an arrangement with transparent vessels, in which various powdery substances are contained, which melt when a temperature limit value is exceeded in each case and, when the temperature subsequently drops, change to crystalline form. With such an arrangement, visual inspection of the state of the substance makes it easy to see whether the temperature limit values specified by the substance composition have been exceeded during the operation of a technical device equipped with it.
  • An easy check for compliance with a maximum permissible acceleration or shock load is possible if the element, which permanently changes a state when a limit value is exceeded, has a body of predetermined mass, the mass inertia of which on its suspension when the limit value of the acceleration exceeds the limit value of the acceleration has a break or causes plastic deformation.
  • a change in state due to breakage can be detected in a simple manner by visual inspection. Additionally or alternatively, an automatic detection of the change in state can take place if at the same time, when the suspension breaks, electrical lines that are connected to digital inputs of an evaluation unit are interrupted, or if resistors are connected to one another in the manner of a resistance coding and the value of the resistance is measured and evaluated to detect a break. In the case of a stretch as a plastic deformation, a simple detection of the change in state by means of strain gauges applied to the deformation zones and a suitable evaluation unit is possible.
  • Such a module for evaluation is easy removed from the technical device and can be replaced by a new module if the condition changes permanently.
  • the monitoring function can be easily expanded by providing several elements for different limit values and / or for different directions of action of the acceleration.
  • an evaluation unit for detecting the state of the element through which a message signal in the event of a limit value ⁇ is generated.
  • remote diagnosis can be carried out automatically using such an evaluation unit.
  • suitable measures for fault handling can be taken in the event of a fault.
  • FIG. 1 shows a control valve
  • FIGS. 2 to 5 show exemplary embodiments for elements for monitoring an acceleration
  • FIG. 6 shows an exemplary embodiment of a three-dimensional arrangement of elements according to FIG. 2.
  • a valve 2 is installed in a pipeline 1 of a process plant, not shown, which controls the flow of a medium 5 through a corresponding stroke of a closing body 4 cooperating with a valve seat 3.
  • the stroke is generated by a pneumatic drive 6 and transmitted to the closing body 4 by means of a valve rod 7.
  • the drive 6 is connected via a yoke 8 to the housing of the valve 2.
  • a positioner 9 is attached to the yoke 8, which detects the stroke on the input side via a connecting piece 10 engaging the valve rod 7, compares this with a setpoint value supplied by a fieldbus via a data interface 11, and on the output side the pneumatic drive 6 in the sense of regulation the control difference controls. It can be seen that vibrations of the pipeline 1 are transmitted via the valve 2 and the yoke 8 to the positioner 9 and lead there to an acceleration or shock load. In addition, pressure surges of the medium 5 in the valve 2 can also cause vibrations.
  • a module 15 contains elements each with a body of predetermined mass, the mass inertia of which causes a break or a plastic deformation of the suspension of the body when a limit value of the acceleration is exceeded. The state of these elements is automatically detected by an evaluation unit, which consists of a computing unit 16 with a program memory 17. If the acceleration has exceeded a permissible limit, this is indicated by
  • Output of a message telegram is displayed via the data interface 11 of a higher-level control of the process engineering system.
  • FIG. 2 shows an exemplary embodiment with elements
  • the elements 21 ... 26 which are arranged next to each other in a plane and have their greatest sensitivity to accelerations in a direction running perpendicular to the top of the elements 21 ... 26.
  • the elements 21 ... 26 are held by clamping a rear edge area 27, so that the elements 21 ... 26 are each suspended in the manner of a bending beam clamped on one side are. With the same thickness and width as well as the same material for elements 21 ... 26, this will be the case with excessive acceleration
  • Element 26 is the first to break on its suspension at edge area 27 and thus a permanent change in its state Experienced. With further increased acceleration, the elements 25, 24, etc. will also break. From the visually easy to grasp state of the elements, it is therefore easy to see what maximum acceleration or impact stress a technical device in which the described device has been installed has been subjected to.
  • the state of the elements 21 ... 26 can be detected automatically, for example, by means of electrical conductor tracks which run on the top over the suspensions of the elements 21 ... 26. If one of the elements breaks, the respective electrical conductor track is also interrupted, the state of which can be easily detected by appropriate interconnection with a digital output of an evaluation unit. If the elements 21 ... 26 and the edge area 27 are made of a window glass with a thickness of 0.5 mm, the breaking stress
  • the width of the elements being 2 mm and the width of their suspension being 1.5 mm, so with a length of 1 mm, 1.5 mm, 2 mm, 2, 5 mm or 3 mm a break at an acceleration of 25.5 g, 11.33 g, 6.38 g, 4.08 g or 2.83 g can be expected, where g corresponds to the acceleration due to gravity. It can be seen that the acceleration ranges and the gradation of the measurable accelerations can be set individually by the geometry.
  • FIG. 3 shows a further exemplary embodiment, in which elements 31... 36 are also suspended on a rear edge region 37 in the manner of a bending beam clamped on one side, elements 31.. a cylinder-shaped, glued-on metal disc can be made.
  • the different masses achieve a graded sensitivity of the elements 31 ... 36 to the acceleration acting.
  • the suspension and fastening in a technical device can be carried out analogously to the exemplary embodiment already described with reference to FIG. 2.
  • elements 41 ... 46 are shown, which have the same geometric dimensions and consist of the same material. They differ only in the width of their suspension at a rear edge area 47 and thus also have a graduated sensitivity to accelerations acting.
  • Figure 5 shows a further variant with which a graded sensitivity of elements 51 ... 55 can be realized.
  • elements 51 ... 55 m differ in terms of their width, while the other geometric dimensions, for example the Width of their suspension at a rear edge region 57 are the same.
  • FIG. 6 shows a module with three groups 61, 62 and 63 of acceleration-sensitive elements which are clamped in clamping devices 64, 65 and 66, respectively. Due to their arrangement within the module that is selected at right angles to one another, the groups 61, 62 and 63 have their greatest sensitivity to accelerations in directions that are orthogonal to each other.
  • the module housing is provided with three holes 67, 68 and 69 for fastening screws, with which it can be screwed onto the inner walls of the housing of a technical device.
  • FIG. 6 shows an exemplary embodiment of a module with three open sides. As an alternative to this, these sides can be closed by a transparent cover, so that the state of the elements of groups 61, 62 and 63 can be determined visually without opening the module.
  • the state can also be detected by means of optical sensors or ultrasonic transducers arranged in a suitable manner.
  • a comparatively simple determination of the state is obtained, however, if electrical conductors are attached to the top of the elements of groups 61, 62 and 63 m in the manner already described above, which are also interrupted if the suspension of an element breaks and their state is automatically recorded by an evaluation unit.
  • monitoring and display is a
  • the permissible acceleration may be exceeded in terms of amount and direction.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

L'invention concerne un dispositif de contrôle et de visualisation du maintien d'une condition de fonctionnement, caractérisé en ce qu'il comprend au moins un élément (21) qui, en cas de dépassement d'une valeur limite d'une caractéristique de fonctionnement contrôlée eu égard au maintien d'un domaine admissible, modifie en permanence un état susceptible d'être détecté. De préférence, on utilise pour le contrôle de l'accélération admissible, des éléments qui, à leur suspension, subissent une rupture, ou bien qui subissent une déformation plastique.
PCT/DE2001/000559 2000-02-16 2001-02-14 Dispositif de controle et de visualisation du maintien d'une condition de fonctionnement WO2001061362A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20002781U DE20002781U1 (de) 2000-02-16 2000-02-16 Einrichtung zur Überwachung und Anzeige der Einhaltung einer Betriebsbedingung
DE20002781.6 2000-02-16

Publications (1)

Publication Number Publication Date
WO2001061362A1 true WO2001061362A1 (fr) 2001-08-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/000559 WO2001061362A1 (fr) 2000-02-16 2001-02-14 Dispositif de controle et de visualisation du maintien d'une condition de fonctionnement

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DE (1) DE20002781U1 (fr)
WO (1) WO2001061362A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1394555A1 (fr) * 2002-08-30 2004-03-03 STMicroelectronics S.r.l. Capteur de seuil d'accélération
US7350424B2 (en) 2002-02-12 2008-04-01 Nokia Corporation Acceleration sensor
DE102013215077A1 (de) 2013-08-01 2015-02-05 Siemens Aktiengesellschaft Feldgerät zur Prozessinstrumentierung
EP3379267A1 (fr) * 2017-03-24 2018-09-26 Hamilton Sundstrand Corporation Enregistreur non électrique de données environnementales

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH700797A1 (de) * 2009-03-31 2010-10-15 Alstom Technology Ltd Verfahren zum Erstellen von Anlagen, insbesondere der Stromerzeugung sowie Vorrichtung zur Durchführung des Verfahrens.

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE748408C (de) * 1940-09-10 1944-11-02 Geraet zur Messung von Hoechstbeschleunigungen
US3117455A (en) * 1961-07-19 1964-01-14 Acf Ind Inc Omnidirectional accelerometer
US3167965A (en) * 1962-12-19 1965-02-02 Gen Motors Corp Accelerometer
WO1998009174A1 (fr) * 1996-08-30 1998-03-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Detecteur d'une valeur limite d'acceleration

Family Cites Families (5)

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US3101069A (en) 1962-04-25 1963-08-20 Bosch Arma Corp Shock sensor
DD271382A1 (de) 1988-04-04 1989-08-30 Berlin Treptow Veb K Indikator zur feststellung der ueberschreitung von beschleunigungsgrenzwerten
DE3936542C1 (fr) 1989-11-02 1991-04-11 Badische Tabakmanufaktur Roth-Haendle Gmbh, 7630 Lahr, De
DE4022147C2 (de) 1990-07-11 1998-11-05 Draegerwerk Ag Narkosemittelverdunster mit einem Belastungsindikator für die Dosiervorrichtung
DE4337515C3 (de) 1993-11-03 2002-08-22 Fraunhofer Ges Forschung Elektronische Endverbraucher-Geräte mit Sensoren zur Erfassung von alterungs-, sicherheits-, gesundheits- und umweltrelevanten Größen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748408C (de) * 1940-09-10 1944-11-02 Geraet zur Messung von Hoechstbeschleunigungen
US3117455A (en) * 1961-07-19 1964-01-14 Acf Ind Inc Omnidirectional accelerometer
US3167965A (en) * 1962-12-19 1965-02-02 Gen Motors Corp Accelerometer
WO1998009174A1 (fr) * 1996-08-30 1998-03-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Detecteur d'une valeur limite d'acceleration

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7350424B2 (en) 2002-02-12 2008-04-01 Nokia Corporation Acceleration sensor
EP1394555A1 (fr) * 2002-08-30 2004-03-03 STMicroelectronics S.r.l. Capteur de seuil d'accélération
US6858810B2 (en) 2002-08-30 2005-02-22 Stmicroelectronics S.R.L. Sensor with failure threshold
DE102013215077A1 (de) 2013-08-01 2015-02-05 Siemens Aktiengesellschaft Feldgerät zur Prozessinstrumentierung
US9575471B2 (en) 2013-08-01 2017-02-21 Siemens Aktiengesellschaft Field device for process instrumentation
EP3379267A1 (fr) * 2017-03-24 2018-09-26 Hamilton Sundstrand Corporation Enregistreur non électrique de données environnementales
US20180275156A1 (en) * 2017-03-24 2018-09-27 Hamilton Sundstrand Corporation Powerless environmental data recorder
CN108732384A (zh) * 2017-03-24 2018-11-02 哈米尔顿森德斯特兰德公司 无电力环境数据记录器
US10241126B2 (en) 2017-03-24 2019-03-26 Hamilton Sundstrand Corporation Powerless environmental data recorder
CN108732384B (zh) * 2017-03-24 2022-02-11 哈米尔顿森德斯特兰德公司 无电力环境数据记录器

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Publication number Publication date
DE20002781U1 (de) 2001-03-22

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