DE1450588B1 - Remote control system for several over control valves pressure-medium operated gate valve or the like. - Google Patents

Remote control system for several over control valves pressure-medium operated gate valve or the like.

Info

Publication number
DE1450588B1
DE1450588B1 DE19641450588D DE1450588DA DE1450588B1 DE 1450588 B1 DE1450588 B1 DE 1450588B1 DE 19641450588 D DE19641450588 D DE 19641450588D DE 1450588D A DE1450588D A DE 1450588DA DE 1450588 B1 DE1450588 B1 DE 1450588B1
Authority
DE
Germany
Prior art keywords
pressure
gate valve
valve
valves
remote control
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.)
Pending
Application number
DE19641450588D
Other languages
German (de)
Inventor
Willi Schwen
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.)
Klein Schanzlin and Becker AG
Original Assignee
Klein Schanzlin and Becker AG
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 Klein Schanzlin and Becker AG filed Critical Klein Schanzlin and Becker AG
Publication of DE1450588B1 publication Critical patent/DE1450588B1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/124—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated
    • F16K31/1245—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated with more than one valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/3057—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having two valves, one for each port of a double-acting output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/625—Accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators
    • F15B2211/7128—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators the chambers being connected in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Driven Valves (AREA)

Description

Es sind Fernsteuerungsanlagen für Absperrschieber bekannt, bei denen die Druckmittelantriebe der einzelnen Schieber über je zwei Rohrleitungen mit den an zentraler Stelle gelegenen Steuerventilen verbunden sind. Zum öffnen oder Schließen des Absperrschiebers wird jeweils eine der beiden Rohrleitungen und damit die entsprechende Kammer des Druckmittelantriebes mit Druck beaufschlagt. Sind in einer derartig aufgebauten Anlage viele Absperrschieber angeordnet und sind große Entfernungen zwischen der Steuerzentrale und den Absperrschiebern zu überbrücken, so ist der Aufwand an Rohrleitungen sehr hoch.There are remote control systems for gate valves are known in which the pressure medium drives of the individual slides via two pipelines each with the centrally located control valves are connected. To open or close of the gate valve is one of the two pipes and thus the corresponding one Chamber of the pressure medium drive pressurized. Are in such a constructed Many gate valves are arranged and there are large distances between the plant To bridge the control center and the gate valve, so is the effort on pipelines very high.

Um die Zahl der zur Fernbetätigung notwendigen Druckmittelleitungen herabzusetzen, wurden in einer Anlage mit mehreren Absperrventilen die Druckmittelantriebe nur mit einer Kammer versehen, für die zwei verschiedene, auf die öffnungs- und Schließbewegung mit bezug auf den Betriebsdruck abgestimmte Druckstufen zur Verfügung zu stellen waren. Diese Anlagen sind vornehmlich für Absperrventile geeignet, die bei Herabsetzen des Schließdruckes durch den Druck des Durchflußmediums selbsttätig geöffnet werden. Bei Verwendung eines solchen Fernbetätigungssystems für Absperrschieber ist für jeden Schieber zusätzlich eine in Öffnungsrichtung wirkende Feder vorzusehen, da das Durchflußmedium keine in Öffnungsrichtung wirkende Kraft auf den Schieber ausübt. Bei festsitzendem Schieber besteht zudem keine Möglichkeit, die durch die Feder ausgeübte Öffnungskraft ohne die Aufwendung zusätzlicher Mittel zu erhöhen und den Schieber loszubrechen.About the number of pressure medium lines required for remote control In a system with several shut-off valves, the pressure medium drives were reduced only provided with one chamber for the two different ones, the opening and the Closing movement with pressure levels matched to the operating pressure are available were to be asked. These systems are primarily suitable for shut-off valves that automatically when the closing pressure is reduced by the pressure of the flow medium be opened. When using such a remote control system for gate valves an additional spring acting in the opening direction must be provided for each slide, since the flow medium has no force acting on the slide in the opening direction exercises. If the slide is stuck, there is also no possibility of the Spring exerted opening force without increasing the expenditure of additional resources and break loose the slide.

Es ist weiterhin eine Ventilsteuerung bekannt, bei welcher der aus Kolben und Zylinder bestehende Druckmittelantrieb von zwei verschiedenen Medien beaufschlagt wird. Die in Öffnungsrichtung wirkende Beaufschlagung der Kolbenunterseite erfolgt bedarfsweise durch das über ein Steuerventil von einer Druckquelle kommende Arbeitsmedium; die in Schließrichtung wirkende Beaufschlagung der Kolbenoberseite erfolgt ständig durch das Durchflußmedium. In der zur oberen Zylinderkammer führenden Leitung ist ein zur Regulierung des Schließdruckes notwendiges Druckregelventil angeordnet. über eine mit einem Rückschlagventil versehene Nebenleitung wird das bei öffnendem Absperrventil aus der oberen Zylinderkammer verdrängte Medium in die Förderleitung zurückgeführt. Auch bei dieser Ausführung besteht keine Möglichkeit, die in Öffnungsrichtung wirkende Kraft zu Beginn des öffnungsvorganges zu erhöhen, wie es zum Losbrechen eines festsitzenden Schiebers erforderlich ist. Der in der oberen Zylinderkammer bei, Beendigung des Schließvorganges herrschende Druck kann nicht weiter vermindert und damit die zwischen der unteren und der oberen Zylinderkammer bestehende Druckdifferenz, also die Öffnungskraft, nicht vergrößert werden.It is also known a valve control in which the off Piston and cylinder existing pressure medium drive from two different media is applied. The impact on the underside of the piston acting in the opening direction takes place as required by the pressure source coming via a control valve Working medium; the loading of the piston top in the closing direction occurs constantly through the flow medium. In the one leading to the upper cylinder chamber Line is a pressure control valve necessary to regulate the closing pressure arranged. The When the shut-off valve opens, the medium displaced from the upper cylinder chamber into the Feed line returned. In this version, too, there is no possibility to increase the force acting in the opening direction at the beginning of the opening process, how it is necessary to break loose a stuck slider. The Indian upper cylinder chamber at the end of the closing process, the prevailing pressure can not further reduced and thus that between the lower and the upper cylinder chamber existing pressure difference, i.e. the opening force, cannot be increased.

Bekannte Ausführungen zum Losbrechen von Schiebern und Ventilen aus der Schließstellung eignen sich jeweils nur für einen Schieber bzw. Ventil und wären in einer Mehrfachanordnung zu kompliziert.Known designs for breaking loose slides and valves the closed position are only suitable for one slide or valve and would be too complicated in a multiple arrangement.

Der Erfindung liegt die Aufgabe zugrunde, eine Fernsteuerungsanlage für mehrere über Steuerventile druckmittelbetätigte Absperrschieber zu schaffen, die bei geringem Aufwand an Rohrleitungen und Steuerorganen eine stets sichere Betätigung jedes einzelnen Absperrschiebers gewährleistet. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Kolbenantriebe aller Absperrschieber an eine gemeinsame, die Schieber im Schließsinn mit dem Druckmedium beaufschlagende Rohrleitung angeschlossen sind und, unabhängig von den Steuerventilen für jeden einzelnen Absperrschieber, in dieser Rohrleitung ein Ventil angeordnet ist, durch das der in dieser Leitung herrschende Druck auf den Atmosphärendruck verminderbar ist.The invention is based on the object of a remote control system create for several shut-off valves actuated by pressure medium via control valves, which is always safe to operate with little effort on pipelines and control elements every single gate valve guaranteed. This object is achieved according to the invention solved in that the piston drives of all gate valves to a common, the slide is connected in the closing direction with the pressure medium acting pipeline and, regardless of the control valves for each individual gate valve, in this pipeline a valve is arranged through which the in this line prevailing pressure can be reduced to atmospheric pressure.

Durch Betätigung dieses einzigen, in der Steuerzentrale angeordneten Ventils ist es möglich, den in Schließrichtung wirkenden Druck zu vermindern, die im Druckmittelantrieb herrschende Druckdifferenz zu erhöhen und so jeden festsitzenden Absperrschieber zu lösen.By actuating this only one arranged in the control center It is possible to reduce the pressure acting in the closing direction of the valve to increase the pressure difference prevailing in the pressure medium drive and so every stuck Release gate valve.

Die Erfindung ist bei hydraulisch und auch bei pneumatisch betätigten Anlagen anwendbar. An Stelle von Schiebern können auch alle anderen Arten von tätigen Verschlüssen in Rohrleitungen verwendet werden; außer Kolbenantrieben können auch Stellmotoren oder andere Betätigungseinrichtungen eingesetzt werden.The invention is both hydraulically and pneumatically operated Attachments applicable. Instead of sliders, all other types of can also be used Closures used in pipelines; besides piston drives can also Servomotors or other actuating devices are used.

Die Erfindung ist nachfolgend an einem Ausführungsbeispiel näher erläutert. Die Fernsteuerungsanlage besteht aus den Absperrschiebern 1, die mit einem üblichen Kolbenantrieb 2 versehen sind, den Steuerventilen 3 mit Anzeigegeräten 4 und einem Pumpenaggregat 5 mit zugehörigen Druckspeichern 6. Vom Pumpenaggregat 5 aus führt eine ständig mit Druck beaufschlagte Rohrleitung 7 über ein Reduzierventil 8 durch die ganze Anlage, und von der Rohrleitung 7 werden kurze Rohrleitungen 7' zu den Kolbenantrieben 2 abgezweigt. Eine weitere Rohrleitung 9 führt von der Rohrleitung 7 vor dem Reduzierventil 8 zu den Steuerventilen 3 für die einzelnen Kolbenantriebe 2 der Absperrschieber 1, mit denen sie über separate Rohrleitungen 10 verbunden sind. In der Rohrleitung 7 ist ein Ventil 11 vorgesehen, durch das der in dieser Leitung herrschende Druck herabgesetzt werden kann. Das beim Betätigen des Ventils 11 zurückfließende Medium wird dem Pumpenaggregat 5 durch eine Rücklaufleitung 12 zugeleitet, die auch das aus den Steuerventilen 3 zurückströmende Medium aufnimmt.The invention is explained in more detail below using an exemplary embodiment. The remote control system consists of the gate valves 1, which are connected to a standard Piston drive 2 are provided, the control valves 3 with display devices 4 and a Pump unit 5 with associated pressure accumulators 6. From pump unit 5 leads a constantly pressurized pipe 7 through a reducing valve 8 the whole system, and from the pipeline 7 short pipelines 7 'to the Piston drives 2 branched off. Another pipe 9 leads from the pipe 7 before the reducing valve 8 to the control valves 3 for the individual piston drives 2 of the gate valve 1, with which they are connected via separate pipes 10 are. In the pipeline 7, a valve 11 is provided through which the in this Line prevailing pressure can be reduced. That when you press the valve 11 medium flowing back is conveyed to the pump unit 5 through a return line 12 supplied, which also receives the medium flowing back from the control valves 3.

Die Wirkungsweise ist folgende: Es wird angenommen, daß das Pumpenaggregat einen Druck von 100 atü aufbringt. Dieser wird im Reduzierventil 8 z. B. auf die Hälfte, also auf 50 atü herabgesetzt, so daß in der Leitung 7 und damit auch in den Leitungen 7' und den oberen Räumen der Kolbenantriebe 2 immer ein Druck von 50 atü herrscht. Werden die Steuerventile 3 so betätigt, daß die Rohrleitungen 10 durch die Verbindung mit der Rücklaufleitung 12 drucklos werden, so wenden die Absperrshieber 1 durch den in den oberen Kammern der Kolbenantriebe 2 herrschenden Druck von 50 atü geschlossen. Das in den unteren Kammern der Kolbenantriebe 2 vorhandene Medium fließt durch die Leitungen 10, die Anzeigegeräte 4, die Steuerventile 3 und die Rücklaufleitung 12 zum Pumpenaggregat 5 zurück.The mode of operation is as follows: It is assumed that the pump unit applies a pressure of 100 atmospheres. This is in the reducing valve 8 z. B. on the Half, so reduced to 50 atü, so that in line 7 and thus also in the lines 7 'and the upper spaces of the piston drives 2 always a pressure of 50 atü prevails. If the control valves 3 are operated so that the pipelines 10 are depressurized by the connection with the return line 12, then turn the gate valve 1 due to the pressure of 50 in the upper chambers of the piston drives 2 atü closed. The medium present in the lower chambers of the piston drives 2 flows through the lines 10, the display devices 4, the control valves 3 and the Return line 12 to pump unit 5 back.

Soll ein bestimmter Absperrschieber 1 geöffnet werden, so wird durch Umschalten seines Steuerventils 3 über das Anzeigegerät 4, die Rohrleitung 10 die untere Kammer seines Kolbenantriebes 2 mit dem vollen Druck, also 100 atü, beaufschlagt. Es herrscht dann oberhalb des Kolbens ein Druck von 50 atü und unterhalb des Kolbens ein Druck von 100 atü, durch diese Druckdifferenz von 50 atü wird der Kolben nach oben gedrückt und so der Absperrschieber 1 geöffnet. Das in der oberen Kammer des Kolbenantriebes 2 befindliche Medium wird über die Leitungen 7', 7, das Überdruckventil 13 und die Rücklaufleitung 12 zum Pumpenaggregat 5 zurückgeführt.If a certain gate valve 1 is to be opened, it is through Switching his control valve 3 via the display device 4, the pipeline 10 the lower chamber of its piston drive 2 with full pressure, i.e. 100 atmospheres. There is then a pressure of 50 atmospheres above the piston and below the piston a pressure of 100 atmospheres, by this pressure difference of 50 atm the piston is pushed up and the gate valve 1 is opened. That in the The medium located in the upper chamber of the piston drive 2 is transported via the lines 7 ', 7, the pressure relief valve 13 and the return line 12 are returned to the pump unit 5.

Reicht aus irgendwelchen Gründen, beispielsweise bei einem besonders fest geschlossenen Absperrschieber 1, der Differenzdruck von 50 atü zum Öffnen nicht aus, so wird durch Betätigen des Ventils 11 der Druck in der Rohrleitung 7 abgebaut Auf diese Weise steht dann eine größere in Öffnungsrichtung wirkende Kraft zur Verfügung. Bei völligem Druckabbau in der oberen Zylinderkammer steht in der unteren Kammer der volle Druck von 100 atü zum Losbrechen des Keiles des Absperrschiebers 1 zur Verfügung. Der zeitweilige Druckabbau in der Rohrleitung 7 hat auf die Stellung der anderen Absperrschieber 1 keinen Einfluß.Enough for any reason, such as one in particular tightly closed gate valve 1, the differential pressure of 50 atü to open it is not off, the pressure in the pipeline 7 is reduced by actuating the valve 11 In this way, a greater force acting in the opening direction is then available. When the pressure in the upper cylinder chamber is completely reduced, the lower chamber shows the full pressure of 100 atü to break loose the wedge of the gate valve 1 to Disposal. The temporary pressure reduction in the pipeline 7 has on the position the other gate valve 1 has no effect.

Claims (1)

Patentanspruch: Fernsteuerungsanlage für mehrere über Steuerventile druckmittelbetätigte Absperrschieber od. dgl., dadurch gekennzeichnet, daß die Kolbenantriebe (2) aller Absperrschieber (1) an eine gemeinsame, die Schieber (1) im Schließsinn mit dem Druckmedium beaufschlagende Rohrleitung (7) angeschlossen sind und, unabhängig von den Steuerventilen (3) für jeden einzelnen Absperrschieber (1), in dieser Rohrleitung (7) ein Ventil (11) angeordnet ist, durch das der in dieser Leitung (7) herrschende Druck auf den Atmospärendruck verminderbar ist.Claim: Remote control system for several via control valves Pressure-medium operated gate valves or the like, characterized in that the piston drives (2) all gate valves (1) to one common, the gate valve (1) in the closing direction with the pressure medium acting pipeline (7) are connected and, independently from the control valves (3) for each individual gate valve (1) in this pipeline (7) a valve (11) is arranged through which the prevailing in this line (7) Pressure on the atmospheric pressure can be reduced.
DE19641450588D 1964-05-16 1964-05-16 Remote control system for several over control valves pressure-medium operated gate valve or the like. Pending DE1450588B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0052973 1964-05-16

Publications (1)

Publication Number Publication Date
DE1450588B1 true DE1450588B1 (en) 1969-09-11

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DE19641450588D Pending DE1450588B1 (en) 1964-05-16 1964-05-16 Remote control system for several over control valves pressure-medium operated gate valve or the like.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3819761A1 (en) * 1988-06-10 1989-12-14 Vib Apparatebau Gmbh Digital valve system
EP0665381A1 (en) * 1994-01-28 1995-08-02 PAUL PLEIGER Maschinenfabrik GmbH & Co. KG System for operating hydraulically actuated valves

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020841B (en) * 1954-04-06 1957-12-12 Sulzer Ag Shut-off device operated by means of a servomotor
DE1058802B (en) * 1955-01-27 1959-06-04 Zikesch Carl Herbert Pressure medium drive for slide or the like, in which the drive force is changed during the movement of the drive piston
DE1121424B (en) * 1956-09-17 1962-01-04 Ilse Geffcken Geb Tochtermann Pneumatic drive for a valve or the like.
DE1148424B (en) * 1960-10-19 1963-05-09 Theodore De Koning Remote control system for a system with two or more pressure medium-operated valves

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020841B (en) * 1954-04-06 1957-12-12 Sulzer Ag Shut-off device operated by means of a servomotor
DE1058802B (en) * 1955-01-27 1959-06-04 Zikesch Carl Herbert Pressure medium drive for slide or the like, in which the drive force is changed during the movement of the drive piston
DE1121424B (en) * 1956-09-17 1962-01-04 Ilse Geffcken Geb Tochtermann Pneumatic drive for a valve or the like.
DE1148424B (en) * 1960-10-19 1963-05-09 Theodore De Koning Remote control system for a system with two or more pressure medium-operated valves

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3819761A1 (en) * 1988-06-10 1989-12-14 Vib Apparatebau Gmbh Digital valve system
EP0665381A1 (en) * 1994-01-28 1995-08-02 PAUL PLEIGER Maschinenfabrik GmbH & Co. KG System for operating hydraulically actuated valves

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