EP3452882A1 - Régulateur de pression à dôme - Google Patents

Régulateur de pression à dôme

Info

Publication number
EP3452882A1
EP3452882A1 EP17726837.2A EP17726837A EP3452882A1 EP 3452882 A1 EP3452882 A1 EP 3452882A1 EP 17726837 A EP17726837 A EP 17726837A EP 3452882 A1 EP3452882 A1 EP 3452882A1
Authority
EP
European Patent Office
Prior art keywords
pressure
dome
pressure regulator
sensor
valve body
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.)
Withdrawn
Application number
EP17726837.2A
Other languages
German (de)
English (en)
Inventor
Martin Bender
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.)
Witt & Co Holding und Handels-Kg GmbH
Original Assignee
Witt & Co Holding und Handels-Kg GmbH
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 Witt & Co Holding und Handels-Kg GmbH filed Critical Witt & Co Holding und Handels-Kg GmbH
Publication of EP3452882A1 publication Critical patent/EP3452882A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0636—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane characterised by the loading device of the membrane, e.g. spring
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/18—Control of fluid pressure with auxiliary non-electric power derived from an external source
    • G05D16/185—Control of fluid pressure with auxiliary non-electric power derived from an external source using membranes within the main valve
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/02—Modifications to reduce the effects of instability, e.g. due to vibrations, friction, abnormal temperature, overloading or imbalance

Definitions

  • the invention relates to a dome pressure regulator for regulating gas pressure, comprising a housing, a fixed valve seat, a movable valve body, a closing spring acting on the valve body and a diaphragm connected to the valve body, which in the opening direction with a control pressure adjustable by a gas pressure spring and in the closing direction can be acted upon by a secondary pressure.
  • a dome pressure regulator of this type is known. Unlike many other pressure regulators, this dome pressure regulator does not work with a mechanical spring, but with a gas pressure spring, which is adjustable via a control gas. As a control gas either the gas to be controlled or a separate gas can be used. About the gas spring, the required secondary pressure can be adjusted. The primary and secondary pressure is recorded and displayed via a mechanical manometer. Furthermore, the secondary pressure at the outlet of the dome pressure regulator is conducted via a control line into a dome chamber located between membrane and diaphragm plate. If there are deviations of the secondary pressure, the same pressure is immediately established in the dome chamber.
  • the valve Since the pressure in the dome chamber counteracts that of the gas pressure spring via the membrane, the valve is opened further when the secondary pressure drops or is closed further as the secondary pressure increases, so that the desired secondary pressure finally sets again.
  • the secondary pressure can be readjusted via the gas spring.
  • a dome pressure regulator By means of the feedback of the secondary pressure into the dome chamber, such a dome pressure regulator is very well suited for compensating for deviations in the secondary pressure due to fluctuating consumption or fluctuating pre-pressures. Even with extremely high or low flow rates, it has a very stable control behavior. Almost exact regulation is possible even with high pressure differences, so that in most cases a usual two-stage solution is no longer necessary.
  • the secondary pressure can be readjusted via the control pressure of the gas spring.
  • a problem of such a dome pressure regulator is that by measuring primary and secondary pressure, only the current pressure on the dome pressure regulator can be displayed via pressure gauges and, if appropriate, the secondary pressure can be readjusted via the control pressure of the gas pressure spring.
  • the trigger for the deviation of the working pressure on the basis of these two measured values can only be determined to a very limited extent.
  • continuous monitoring of such a dome pressure regulator is not possible or only with additional effort.
  • temporary deviations of the working pressure and possible temporary errors in the upstream and downstream pressure system or in the dome pressure regulator itself are not detected. An event diagnosis is therefore almost impossible.
  • the object of the invention is therefore to provide a dome pressure regulator which is capable of automatically detecting further useful state parameters of the system and to integrate a continuous function check as well as a logging of the measured values collected into the dome pressure regulator.
  • the invention proposes, starting from a dome pressure regulator of the type mentioned, at least one displacement sensor to provide, through which the stroke of the valve body can be measured, and a sensor integrated into the housing evaluation unit.
  • the instantaneous valve body deflection can be detected.
  • additional state parameters can be used to conclude on the quantitative fluctuations in the system.
  • a displacement sensor comes here, for example, a capacitive, inductive, magnetic or optical displacement sensor in question.
  • the sensor evaluation unit records the measured values of the displacement sensor.
  • a development of the invention provides that additionally at least one electronic pressure sensor connected to the sensor evaluation unit is provided for detecting the primary pressure and / or the secondary pressure. These sensors can be used to collect further measurement data. By means of these measurement data can be in addition to the quantity of fluctuations in the printing system also close to their cause. The additional measurement data are also recorded by the sensor evaluation unit.
  • fluctuations in the upstream pressure system can be detected via an electronic pressure sensor which detects the primary pressure, while inconsistencies in the dome pressure regulator itself are detected via the measurement data of an electronic pressure sensor detecting the secondary pressure.
  • a temperature sensor connected to the sensor evaluation unit is provided for detecting the ambient temperature of the dome pressure regulator. Since the dome pressure regulators are used under varying and, above all, strongly fluctuating climatic conditions, the additional temperature sensor can be used to record the influence of the ambient temperature on the fluctuations in the overall pressure system. It is also expedient if at least one respective temperature sensor connected to the Sensonk evaluation unit is provided for detecting the temperature of the primary-side and / or the secondary-side gas. By additionally measuring the gas temperatures, the flow rate and thus the gas consumption can be determined more precisely and continuously, so that unusual consumption values can be used to detect leaks or other unintentional gas losses.
  • a further development provides that a pressure sensor connected to the sensor evaluation unit for detecting the control pressure and a temperature sensor for detecting the temperature of the control gas are provided. By means of these measured values, abnormalities with respect to the control pressure regulator can be detected.
  • a preferred embodiment of the dome pressure regulator provides that the sensors are connected to the sensor evaluation unit and integrated in or on the housing of the dome pressure regulator. As a result of this measure, the installation of the dome pressure regulator remains simple since no additional wiring effort is required to connect the sensors to the sensor evaluation unit when the dome pressure regulator is installed.
  • the measurement data of the evaluation unit can be called up via an interface arranged on the dome pressure regulator.
  • This can be realized by a graphical interface, but also by a simple hardware interface.
  • the different profiles of the state parameters, possibly correlation curves or event histories can be displayed when exceeding or falling below of limit values.
  • maintenance measures are far more effective and thus more frequent and precise feasible.
  • the interface arranged on the dome pressure regulator is a radio interface.
  • the data can also be transmitted via a radio interface Service personnel entrained wireless display module such as a smartphone or tablet PC retrieve. It would be conceivable for a corresponding existing data network, a remote maintenance or automatic remote monitoring of the dome pressure regulator via this interface.
  • FIG. 1 is a schematic 3D view of a dome pressure regulator according to the invention
  • 2 shows schematically a longitudinal section through the dome pressure regulator in the closed switching state of FIG. 1.
  • the housing of the dome pressure regulator is designated by the reference numeral 1.
  • the housing 1 has a primary-side terminal end 1 a, which can be connected to an incoming pipeline, not shown, an upstream pressure distribution system, and a secondary-side terminal end 1 b, to which a likewise not shown downstream pressure distribution system or directly an end user can be connected.
  • the housing 1 is connected by means of screws 2 with a housing cover 3.
  • a membrane 4 is mounted pressure-tight. This membrane 4 is made of an elastomer.
  • a drive 5 is shown. This drive 5 is operated manually in this embodiment. An electric or pneumatic drive would also be possible.
  • the pressure at the secondary-side terminal end 1 b can be adjusted by means of a control gas.
  • a control gas either the gas to be controlled or a separate gas can be used.
  • the control gas is passed into a pressure chamber 6 located between membrane 4 and housing cover 3. The with the pressure of Control gas acted membrane 4 transmits its hub via a two-part diaphragm plate 7 on a valve body 8.
  • the valve body 8 consists of a valve stem 8a, a valve plate 8b and a valve stem 8c.
  • valve body 8 blocks the gas flow through the dome pressure regulator by pressing the valve disk 8b against a valve seat 10 by means of a closing spring 9. If the control gas pressure is increased so far that the force of the closing spring 9 is overcome, the valve body 8 moves away from the valve seat 10 and the dome pressure regulator opens. By way of a further increase in the control pressure, the secondary pressure at the secondary connection end 1 b can then be set to the desired value.
  • the stroke of the valve body 8 is limited by the shape of the diaphragm plate 7.
  • the secondary pressure is transferred to a between housing 1 and diaphragm 4 and diaphragm plate 7 lying dome chamber 12.
  • the secondary pressure in the dome chamber 12 is coupled against the control pressure in the pressure chamber 6. If there are fluctuations in the system, for example due to a change in the primary pressure or the temperature, and the secondary pressure rises or falls, the dome pressure regulator closes or opens again, so that the target pressure again sets on the secondary side. If the fluctuations in the system become too strong or if the conditions change permanently and significantly, the secondary pressure must be readjusted via the drive 5.
  • various sensors are additionally installed on the dome pressure regulator in this exemplary embodiment, via which various system parameters can be detected.
  • a primary-side combined pressure / temperature sensor 13 detects the primary pressure and the temperature of the gas at this point. Significant changes or even temporary fluctuations in these measured values suggest a change in the pressure system upstream of the dome pressure regulator.
  • a secondary side combined pressure / temperature sensor 14 detects the secondary pressure and the temperature of the gas at that location. Significant changes in these secondary readings at the same time constant primary-side measured values indicate a malfunction of the dome pressure regulator.
  • a displacement sensor 15 is provided, which detects the stroke of the valve tappet 8c.
  • the flow through the dome pressure regulator can be determined relatively accurately. If unusual values occur in the flow values, the cause lies primarily in the downstream pressure system or at the end user.
  • a combined pressure-temperature sensor 16 is provided for detecting the control pressure.
  • the sensors 13, 14, 15 and 16 are connected to a sensor evaluation unit 17.
  • the sensor evaluation unit 17 can log entire series of measurements or else record only set limit value exceedances or other events of particular interest.
  • the sensor evaluation unit 17 has already integrated a display 17a for displaying the measurement records.
  • a display 17a for displaying the measurement records.
  • Another interface for reading out and evaluating the measured data would also be possible.
  • the interface could also be realized, for example, in the form of a simple hardware interface to which the operating and maintenance personnel can connect a mobile device via a connecting cable.
  • Another possibility would be a radio interface (e.g., NFC, Bluetooth, etc.) or an optical interface (e.g., IR) through which readings can be read.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

Régulateur de pression à dôme destiné à réguler la pression d'un gaz, comprenant un boîtier (1), un siège de soupape (10) fixe, et un élément soupape (8) mobile, un ressort de fermeture (9) sollicitant l'élément soupape (8) et une membrane (4) reliée à l'élément soupape (8), qui peut être sollicitée dans le sens de l'ouverture par une pression de commande réglable au moyen d'un vérin à gaz, et dans le sens de la fermeture par une pression secondaire. L'invention a pour but d'acquérir les paramètres d'état du système et d'intégrer une surveillance du fonctionnement et un enregistrement des valeurs mesurées dans le régulateur de pression. Pour atteindre ce but, au moins un capteur de déplacement (15) permettant de mesurer la course de l'élément soupape (8), et une unité d'analyse de données de capteurs (17) intégrée dans le boîtier sont prévus.
EP17726837.2A 2016-05-06 2017-05-03 Régulateur de pression à dôme Withdrawn EP3452882A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016108448.4A DE102016108448B4 (de) 2016-05-06 2016-05-06 Domdruckregler
PCT/EP2017/060495 WO2017191171A1 (fr) 2016-05-06 2017-05-03 Régulateur de pression à dôme

Publications (1)

Publication Number Publication Date
EP3452882A1 true EP3452882A1 (fr) 2019-03-13

Family

ID=58873766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17726837.2A Withdrawn EP3452882A1 (fr) 2016-05-06 2017-05-03 Régulateur de pression à dôme

Country Status (4)

Country Link
US (2) US20190146527A1 (fr)
EP (1) EP3452882A1 (fr)
DE (1) DE102016108448B4 (fr)
WO (1) WO2017191171A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3979035B1 (fr) 2020-09-30 2023-11-01 Witt GmbH & Co. Holding und Handels-KG Régulateur de pression du dôme

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB447519A (en) * 1934-12-10 1936-05-20 Marvin Henry Grove Pressure regulator
US2707966A (en) * 1950-05-25 1955-05-10 John F Taplin Pressure regulator valve
US2806481A (en) * 1953-04-08 1957-09-17 Norgren Co C A Pilot controlled pressure regulator
US4139339A (en) * 1977-02-17 1979-02-13 Combustion Unlimited Incorporated Flare gas stack with purge control
GB2060140B (en) * 1979-10-02 1983-05-05 Northern Eng Ind Fluid control valve
DE3331394A1 (de) * 1983-08-31 1985-03-14 Steuerungstechnik Staiger GmbH & Co Produktions-Vertriebs-KG, 7121 Erligheim Ventil
US6149071A (en) * 1998-06-10 2000-11-21 Global Metering Solutions, Llc Flow control system for spray applications
US6539315B1 (en) * 1999-06-29 2003-03-25 Fisher Controls International, Inc. Regulator flow measurement apparatus
US20050016592A1 (en) * 2001-11-13 2005-01-27 Jeromson Peter James Process control valve
CA2467477A1 (fr) * 2001-11-22 2003-06-05 The Linden Shield Limited Ensemble soupape de securite thermosensible
US20060265105A1 (en) * 2005-05-20 2006-11-23 Hughes Albert R Loop-powered field instrument
US7533690B2 (en) * 2005-07-07 2009-05-19 Stanford Mu Corporation Multi-functional regulator
WO2007084258A2 (fr) * 2005-12-15 2007-07-26 Niagara Dispensing Technologies, Inc. Distributeur de boisson
CN102707741B (zh) * 2007-01-24 2015-01-21 I2O供应水有限公司 用于减压阀的控制器和控制系统
DE102007058518A1 (de) * 2007-12-05 2009-06-18 Abb Ag Verfahren zum Betrieb eines Stellungsreglers
US8850818B2 (en) * 2010-10-18 2014-10-07 General Electric Company Systems and methods for gas fuel delivery with hydrocarbon removal utilizing active pressure control and dew point analysis
DE102011112584B4 (de) * 2011-09-08 2015-12-31 Mann + Hummel Gmbh Kurbelgehäuseentlüftungseinrichtung
US8947242B2 (en) * 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US9804609B2 (en) * 2012-02-22 2017-10-31 Agilent Technologies, Inc. Mass flow controllers and methods for auto-zeroing flow sensor without shutting off a mass flow controller
DE102013001278B3 (de) 2013-01-25 2014-02-13 Festo Ag & Co. Kg Thermisches Regelventil
US9371925B2 (en) * 2013-07-30 2016-06-21 Tescom Corporation Fluid regulators having corrugated diaphragms
WO2016011952A1 (fr) * 2014-07-22 2016-01-28 费希尔久安输配设备(成都)有限公司 Soupape de régulation de pression
US9645584B2 (en) * 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US9791059B2 (en) * 2015-01-21 2017-10-17 Pietro Fiorentini S.P.A. Vent valve for gas pressure regulators and pressure regulator equipped with said vent valve

Also Published As

Publication number Publication date
US20190146527A1 (en) 2019-05-16
US20210397205A1 (en) 2021-12-23
DE102016108448B4 (de) 2022-12-08
WO2017191171A1 (fr) 2017-11-09
DE102016108448A1 (de) 2017-11-09

Similar Documents

Publication Publication Date Title
DE60110836T2 (de) Selbstzentrierende magnetanordnung zur verwendung in einem linearen wegmesser
EP2381149B1 (fr) Procédé de détermination d'une position de fonctionnement d'une soupape tout ou rien et appareil de terrain
DE112019002316T5 (de) System zum erfassen eines ventilzustands
DE19723207C2 (de) Stellgerät
EP3546763B1 (fr) Détection des états de maintenance de vannes
EP3772596B1 (fr) Agencement pourvu de soupape d'ouverture / de fermeture, de servomoteur pneumatique, électrovanne et dispositif de surveillance fonctionnel
EP3553357B1 (fr) Clapet d'arrêt
DE102012016295B4 (de) Vorrichtung und Verfahren zum Quantifizieren eines Leckagedurchflusses an einem Stellgerät
WO2006122639A1 (fr) Compteur a gaz a soufflet concu pour detecter des debits de gaz
EP3189258A1 (fr) Procédé de détermination du degré d'usure d'une soupape et dispositif permettant de mettre en oeuvre le procédé
DE102016108448B4 (de) Domdruckregler
EP2250716B1 (fr) Dispositif de surveillance d'armoires de contrôle
EP0585280B1 (fr) Procede de mesure de la pression d'un gaz dans un accumulateur de gaz sous pression et dispositif pour la mise en oeuvre de ce procede
WO2018050439A1 (fr) Raccord pour un système de conduites de fluide
DE3732547A1 (de) Vorrichtung zur herstellung und kontrolle von wechselnden verbindungen zwischen jeweils zwei leitungen fuer fluessigkeiten und/oder gase
WO1998002685A1 (fr) Dispositif de controle automatique de mecanismes pneumatiques d'entrainement et regulateurs de position pourvus de ce dispositif
EP3588047B1 (fr) Protection contre les fuites
DE3934415A1 (de) Einrichtung zur ueberwachung der dichtigkeit einer gasgefuellten kammer
DE102019210600A1 (de) Diagnoseeinrichtung, Reglervorrichtung, fluidisches System und Verfahren zur Diagnose von Druckfluid-Leckage
DE19643749C2 (de) Pneumatische Steueranordnung für ein Beatmungsgerät
EP3772048B1 (fr) Enveloppe à surpression
DE102009040286A1 (de) Vorrichtung und Verfahren zur Überprüfung der Dichtheit eines Fluidsystems
DE102020202434A1 (de) Ventilvorrichtung und Verfahren
DE102017125459A1 (de) Prozessventil mit Sensorfunktion
DE69823687T2 (de) Verfahren und vorrichtung zur regelung eines pneumatisch betätigten ventils

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20181206

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20201113

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20211120