EP0079507B1 - Fluid feeding valve - Google Patents

Fluid feeding valve Download PDF

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Publication number
EP0079507B1
EP0079507B1 EP19820110039 EP82110039A EP0079507B1 EP 0079507 B1 EP0079507 B1 EP 0079507B1 EP 19820110039 EP19820110039 EP 19820110039 EP 82110039 A EP82110039 A EP 82110039A EP 0079507 B1 EP0079507 B1 EP 0079507B1
Authority
EP
European Patent Office
Prior art keywords
chamber
flow medium
piston
valve
fluid
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.)
Expired
Application number
EP19820110039
Other languages
German (de)
French (fr)
Other versions
EP0079507A1 (en
Inventor
Hans-Georg Dr. Rer.Nat. Fassbinder
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.)
CESSIONE;KLOECKNER CRA PATENT GMBH
Original Assignee
Kloeckner Stahlforschung GmbH
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Publication date
Application filed by Kloeckner Stahlforschung GmbH filed Critical Kloeckner Stahlforschung GmbH
Priority to AT82110039T priority Critical patent/ATE12523T1/en
Publication of EP0079507A1 publication Critical patent/EP0079507A1/en
Application granted granted Critical
Publication of EP0079507B1 publication Critical patent/EP0079507B1/en
Expired legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/48—Bottoms or tuyéres of converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7923—With means to protect spring from fluid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/88054—Direct response normally closed valve limits direction of flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/88062—Coaxial oppositely directed seats

Definitions

  • the invention has for its object, in particular to remedy these disadvantages and to provide a valve of the type specified in the preamble of claim 1, which above all meets the requirements mentioned reliably with a simple structure and fulfills all the functions described at the same time.
  • valve according to the invention is described below, for example, with reference to the drawing, the only figure of which shows a longitudinal section in the plane in which the fluid inlet and the fluid outlet of the valve shown are provided.
  • the valve has a housing 1 consisting of two lids 2 and 3 and a tubular middle part 4.
  • the middle part 4 is clamped together with an inner sleeve 5 between the two covers 2 and 3, which are connected to one another by screws 6.
  • the fluid inlet 7 of the valve extends perpendicular to the longitudinal axis of the housing 1 and is formed by a pipe socket 8 on the central part 4, which is provided with a connecting flange 9 at the free end.
  • the fluid outlet 10 of the valve is arranged coaxially to the longitudinal axis of the housing 1 and is formed in the cover 3 on the right in the drawing.
  • valve has a stepped piston 11, a plate 12, a compression spring 13 and a differential piston 14.
  • the stepped piston 11, the plate 12 and the differential piston 14 are arranged coaxially to one another and to the longitudinal axis of the housing 1, as is the sleeve 5.
  • the stepped piston 11 is movably accommodated in a chamber 15 which is formed in the cover 2 on the left in the drawing. Its piston rod 16 is received in a cup-shaped extension 17 of the cover 2. With the right-hand end face of the section of smaller diameter in the drawing, the stepped piston 11 interacts with an annular edge 18 of the sleeve 5 in order to close the adjacent opening 19 of the chamber 20 enclosed by the sleeve 5, which chamber is located between the fluid inlet 7 and the fluid outlet 10 extends.
  • the plate 12 is movably arranged in the fluid outlet 10 of the valve between the closed position and the open position. He is attached to the right in the drawing end of the differential piston 14 and loaded by this and the compression spring 13 to the left in the closed position, in which it rests with the outer circumference of a conical seat surface 21 of the sleeve 5 to the chamber 20 on the To close the fluid outlet 10 of the valve facing side.
  • the differential piston 14 extends through a housing 22 provided in the center of the chamber 20 and connected to the sleeve 5, whereby it has the housing end wall facing the fluid outlet 10 of the valve with a section 14 'of larger diameter and the other housing end wall facing the chamber opening 19 interspersed with a section 14 "of smaller diameter, so that its effective area on the side facing the fluid outlet 10 is larger than the opposite effective area on its other side adjacent the chamber opening 19 and the stepped piston 11.
  • the differential piston 14 is also included an annular collar 23, which together with an inner annular shoulder 24 of the housing 22 acts to limit the movement of the differential piston 14 to the right in the drawing and thus to define the open position of the plate 12.
  • the compression spring 13ab which is accommodated in the housing 22 and rests with the other end on the right-hand end wall of the housing 22 adjacent to the plate 12 in the drawing.
  • the interior 25 of the housing 22 communicates with the free atmosphere via a fluid line 26.
  • a fluid line 27 or 28 opens into the chamber 15 of the stepped piston 11 and into the chamber 20, in the area of the left end face of the chamber in the drawing or in the area next to the conical seat surface 21 of the sleeve 5.
  • the two fluid lines 27 and 28 are each connected to an outlet 29 or 30 of an electromagnetic 4-way valve 31, one inlet 32 of which is connected to the fluid inlet 7 of the valve via a fluid line 33, while the other inlet 34 communicates with the free atmosphere.
  • the valve works as follows. In the open state, the fluid, for example oxygen, supplied in the fluid line attached to the connection flange 9 flows from the fluid inlet 7 of the valve to its fluid outlet 10 in order to enter the fluid line attached to the cover 3, which leads to a converter, the contents of which treat with the fluid which is blown from below through bottom nozzles into the converter or its contents.
  • the electromagnetic 4-way valve 31 is in the switch position illustrated in the drawing on the left, so that the chamber 15 of the stepped piston 11 is vented and the bypass formed by the fluid lines 28 and 33 between the fluid inlet 7 of the valve and its chamber 20 is open .
  • the stepped piston 11 lies against the left end face of the chamber 15 in the drawing, pressed against it by the pressure of the fluid located in the housing 1 of the valve, so that the chamber opening 19 is opened.
  • the plate 12 also occupies the open position.
  • the second fluid is first connected to the common fluid line, for example through an identical valve.
  • this second valve not shown, reports the operating position “open” through a corresponding contact, the valve shown is switched to the closed state shown in the drawing.
  • the pressure in the common fluid line adjusts to the higher pressure of the two fluids, so that the pressure of one of the two fluids always acts in the common fluid line. If, for example, the pressure of the second fluid is higher than that of the first, the plate 12 closes the valve chamber 20 and prevents the second fluid from flowing into the valve for the first fluid. When the pressure conditions are reversed, the plate 12 of the valve for the second fluid remains closed until the pressure in the common fluid line has dropped to the pressure of the second fluid as a result of the valve closing process for the first fluid.
  • the valve shown for the first fluid is switched to interrupt this fluid line as follows in the closed state shown in the drawing.
  • the electromagnetic 4-way valve 31 is switched to the switching position illustrated on the right in the drawing, so that now the fluid line 27 leading into the chamber 15 of the stepped piston 11 via the fluid line 33 with the fluid inlet 7 of the valve and its chamber 20 via the fluid line 28 instead communicates with the free atmosphere.
  • the stepped piston 11 is displaced by the pressure building up in the chamber 15, acting on its rear, larger effective area, on the sleeve 5 and pressed against the ring edge 18 to close the opening 19 of the chamber 20, so that no more fluid from the Fluid inlet 7 can get into the chamber 20, which is vented via the fluid line 28.
  • the plate 12 moves from the open position into the closed position, specifically because of the action of the compression spring 13 and the differential piston 14 with the correspondingly arranged effective surfaces 14 'and 14 "of different sizes.
  • the plate 12 thus reliably ensures a check valve function.
  • the electromagnetic 4-way valve 31 is switched back to the switching position illustrated on the left in the drawing, so that the chamber 15 of the stepped piston 11 is vented via the fluid line 27 and the chamber 20 of the Valve via the fluid line 28 is acted upon by fluid from the fluid inlet 7 of the valve.
  • the step piston 11 is shifted to the left in the drawing to expose the opening 19 of the chamber 20 so that fluid can flow in from the fluid inlet 7.
  • the plate 12 lifts off the conical seat surface 21 of the sleeve 5 and is moved into the open position.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Multiple-Way Valves (AREA)
  • Fluid-Driven Valves (AREA)
  • Lift Valve (AREA)

Abstract

The valve for supplying a flow medium to a flow medium pipe which alternatingly carries different flow media, in particular to the flow medium pipe of a converter for treating the contents of a converter with various gaseous flow media, exhibits a chamber (20) between the flow medium inlet (7) and the flow medium outlet (10), which chamber may be closed on the side facing the flow medium inlet (7) by a piston (11) and on the side facing the flow medium outlet (10) by a disk (12). The piston (11), on the side turned away from the chamber (20), and the chamber (20) are optionally connectable via separate flow medium pipes (27 and 28, respectively) with the flow medium inlet (7) and the free atmosphere, respectively, to close the chamber (20) by the piston (11) and evacuate the chamber, or with the free atmosphere and the flow medium inlet (7), respectively, to open the chamber (20) by the piston (11). The disk (12) is loaded in a closed position towards the chamber (20) by a spring (13) and a differential piston (14) with a larger effective surface (14') on the side facing the flow medium outlet (10) and a smaller effective surface (14'') on the opposite side (the only drawing).

Description

Bei wechselweise mit verschiedenen Strömungsmitteln beschickten Strömungsmittelleitungen, welche also mindestens zwei unterschiedliche Strömungsmittel führen, und zwar immer nur eines der beiden, nämlich während einer bestimmten Periode das eine Strömungsmittel und während der anderen Periode das andere Strömungsmittel, wird gefordert, daß in der abwechselnd durchströmten Strömungsmittelleitung ständig der Druck des einen oder des anderen Strömungsmittels aufrecht erhalten bleibt.In the case of alternately fed fluid lines, which therefore carry at least two different fluids, and always only one of the two, namely one fluid during a certain period and the other fluid during the other period, it is required that in the alternately flowed fluid line the pressure of one or the other fluid is constantly maintained.

Dies ist insbesondere bei Strömungsmittelleitungen der Fall, über die beispielsweise Konverter zur Stahlerzeugung mit gasförmigen bzw. Suspensionen aus Trägergas und Feststoffen, zur Behandlung der Schmelze versorgt werden. Auf diese Weise können zum Beispiel die Düsen unterhalb der Badoberfläche eines Konverters mit Inertgas oder Sauerstoff, mit oder ohne Beladung von pulverförmigen Schlackenbildnern, beschickt werden. Ein Druckabfall in diesen Düsen im Konverter würde zwangsläufig das Eindringen der Schmelze in die Düsenrohre nach sich ziehen und zu Verstopfungen der Düsen sowie zu Beschädigungen an den Versorgungseinrichtungen und -leitungen der Düsen führen.This is particularly the case with fluid lines via which, for example, converters for steel production with gaseous or suspensions of carrier gas and solids are supplied for the treatment of the melt. In this way, for example, the nozzles below the bath surface of a converter can be charged with inert gas or oxygen, with or without loading of powdery slag formers. A pressure drop in these nozzles in the converter would inevitably entail the penetration of the melt into the nozzle tubes and lead to blockages of the nozzles and damage to the supply devices and lines of the nozzles.

Um den besagten Forderungen Rechnung zu tragen, ist es bekannt, bei Strömungsmittelleitungen, welche abwechselnd mit Sauerstoff und anderen gasförmigen Strömungsmitteln beschickt werden, dem Sauerstoffeinlaß ein erstes Absperrventil, eine Entlüftungsstrecke, ein zweites Absperrventil und ein vom Sauerstoffeinlaß weg öffnendes Rückschlagventil nachzuschalten. Die Entlüftungsstrecke zwischen den beiden Absperrventilen ist mit einem dritten Absperrventil versehen, über welches die Entlüftungsstrecke mit der freien Atmosphäre in Verbindung gesetzt werden kann. Dieses Vorgehen erfordert verhältnismäßig viele Bauteile, ist mit einem relativ großen Platzbedarf verbunden und verhältnismäßig aufwendig.In order to meet the above requirements, it is known to connect a first shut-off valve, a vent line, a second shut-off valve and a non-return valve opening away from the oxygen inlet in the case of fluid lines which are alternately fed with oxygen and other gaseous fluids. The vent line between the two shut-off valves is provided with a third shut-off valve, via which the vent line can be connected to the free atmosphere. This procedure requires a relatively large number of components, is associated with a relatively large space requirement and is relatively complex.

Der Erfindung liegt die Aufgabe zugrunde, insbesondere diese Nachteile zu beheben und ein Ventil der im Oberbegriff des Patentanspruchs 1 angegebenen Gattung zu schaffen, welches bei einfachem Aufbau vor allem den erwähnten Forderungen zuverlässig genügt und sämtliche geschilderten Funktionen zugleich erfüllt.The invention has for its object, in particular to remedy these disadvantages and to provide a valve of the type specified in the preamble of claim 1, which above all meets the requirements mentioned reliably with a simple structure and fulfills all the functions described at the same time.

Diese Aufgabe ist durch die im kennzeichnenden Teil des Patentanspruchs 1 angegebenen Merkmale gelöst. Vorteilhafte Ausgestaltungen des erfindungsgemäßen Ventils sind in den restlichen Patentansprüchen gekennzeichnet.This object is achieved by the features specified in the characterizing part of patent claim 1. Advantageous refinements of the valve according to the invention are characterized in the remaining claims.

Nachstehend ist eine Ausführungsform des erfindungsgemäßen Ventils anhand der Zeichnung beispielsweise beschrieben, deren einzige Figur einen Längsschnitt in derjenigen Ebene zeigt, in welcher der Strömungsmitteleinlaß und der Strömungsmittelauslaß des dargestellten Ventils vorgesehen sind.An embodiment of the valve according to the invention is described below, for example, with reference to the drawing, the only figure of which shows a longitudinal section in the plane in which the fluid inlet and the fluid outlet of the valve shown are provided.

Das Ventil weist ein Gehäuse 1 bestehend aus zwei Deckeln 2 und 3 sowie einem rohrartigen Mittelteil 4 auf. Das Mittelteil 4 ist zusammen mit einer inneren Hülse 5 zwischen den beiden Deckeln 2 und 3 eingespannt, welche durch Schrauben 6 miteinander verbunden sind.The valve has a housing 1 consisting of two lids 2 and 3 and a tubular middle part 4. The middle part 4 is clamped together with an inner sleeve 5 between the two covers 2 and 3, which are connected to one another by screws 6.

Senkrecht zur Längsachse des Gehäuses 1 erstreckt sich der Strömungsmitteleinlaß 7 des Ventils, welcher von einem Rohrstutzen 8 am Mittelteil 4 gebildet ist, der am freien Ende mit einem Anschlußflansch 9 versehen ist. Der Strömungsmittelauslaß 10 des Ventils ist koaxial zur Längsachse des Gehäuses 1 angeordnet und in dem in der Zeichnung rechten Deckel 3 ausgebildet.The fluid inlet 7 of the valve extends perpendicular to the longitudinal axis of the housing 1 and is formed by a pipe socket 8 on the central part 4, which is provided with a connecting flange 9 at the free end. The fluid outlet 10 of the valve is arranged coaxially to the longitudinal axis of the housing 1 and is formed in the cover 3 on the right in the drawing.

Weiterhin weist das Ventil einen Stufenkolben 11, einen Teller 12, eine Druckfeder 13 und einen Differentialkolben 14 auf. Der Stufenkolben 11, der Teller 12 und der Differentialkolben 14 sind koaxial zueinander und zur Längsachse des Gehäuses 1 angeordnet, ebenso wie die Hülse 5.Furthermore, the valve has a stepped piston 11, a plate 12, a compression spring 13 and a differential piston 14. The stepped piston 11, the plate 12 and the differential piston 14 are arranged coaxially to one another and to the longitudinal axis of the housing 1, as is the sleeve 5.

Der Stufenkolben 11 ist in einer Kammer 15 beweglich untergebracht, welche in dem in der Zeichnung linken Deckel 2 ausgebildet ist. Seine Kolbenstange 16 ist in einem topfförmigen Fortsatz 17 des Deckels 2 aufgenommen. Mit der in der Zeichnung rechten Stirnfläche des Abschnitts kleineren Durchmessers wirkt der Stufenkolben 11 mit einer Ringkante 18 der Hülse 5 zusammen, um die benachbarte Öffnung 19 der von der Hülse 5 umschlossenen Kammer 20 zu verschließen, welche sich zwischen dem Strömungsmitteleinlaß 7 und dem Strömungsmittelauslaß 10 erstreckt.The stepped piston 11 is movably accommodated in a chamber 15 which is formed in the cover 2 on the left in the drawing. Its piston rod 16 is received in a cup-shaped extension 17 of the cover 2. With the right-hand end face of the section of smaller diameter in the drawing, the stepped piston 11 interacts with an annular edge 18 of the sleeve 5 in order to close the adjacent opening 19 of the chamber 20 enclosed by the sleeve 5, which chamber is located between the fluid inlet 7 and the fluid outlet 10 extends.

Der Teller 12 ist im Strömungsmittelauslaß 10 des Ventils zwischen der Schließstellung und der Öffnungsstellung beweglich angeordnet. Er ist an dem in der Zeichnung rechten Ende des Differentialkolbens 14 befestigt und durch diesen sowie die Druckfeder 13 nach links in die Schließstellung belastet, in welcher er mit dem Außenumfang an einer konischen Sitzfläche 21 der Hülse 5 anliegt, um die Kammer 20 auf der dem Strömungsmittelauslaß 10 des Ventils zugewandten Seite zu verschließen.The plate 12 is movably arranged in the fluid outlet 10 of the valve between the closed position and the open position. He is attached to the right in the drawing end of the differential piston 14 and loaded by this and the compression spring 13 to the left in the closed position, in which it rests with the outer circumference of a conical seat surface 21 of the sleeve 5 to the chamber 20 on the To close the fluid outlet 10 of the valve facing side.

Der Differentialkolben 14 erstreckt sich durch ein in der Mitte der Kammer 20 vorgesehenes, mit der Hülse 5 verbundenes Gehäuse 22 hindurch, wobei er die dem Strömungsmittelauslaß 10 des Ventils zugewandte Gehäusestirnwand mit einem Abschnitt 14' größeren Durchmessers und die andere, der Kammeröffnung 19 zugewandte Gehäusestirnwand mit einem Abschnitt 14" kleineren Durchmessers durchsetzt, so daß also seine Wirkungsfläche auf der dem Strömungsmittelauslaß 10 zugewandten Seite größer als die entgegengesetzte Wirkungsfläche auf seiner anderen, der Kammeröffnung 19 und dem Stufenkolben 11 benachbarten Seite ist. Innerhalb des Gehäuses 22 ist der Differentialkolben 14 mit einem Ringbund 23 versehen, welcher mit einer inneren Ringschulter 24 des Gehäuses 22 zusammenwirkt, um die Bewegung des Differentialkolbens 14 in der Zeichnung nach rechts zu begrenzen und somit die Öffnungsstellung des Tellers 12 zu definieren. Weiterhin stützt sich am Ringbund 23 die Druckfeder 13ab, welche im Gehäuse 22 untergebracht ist und mit dem anderen Ende an der in der Zeichnung rechten, dem Teller 12 benachbarten Stirnwand des Gehäuses 22 anliegt. Der Innenraum 25 des Gehäuses 22 kommuniziert über eine Strömungsmittelleitung 26 mit der freien Atmosphäre.The differential piston 14 extends through a housing 22 provided in the center of the chamber 20 and connected to the sleeve 5, whereby it has the housing end wall facing the fluid outlet 10 of the valve with a section 14 'of larger diameter and the other housing end wall facing the chamber opening 19 interspersed with a section 14 "of smaller diameter, so that its effective area on the side facing the fluid outlet 10 is larger than the opposite effective area on its other side adjacent the chamber opening 19 and the stepped piston 11. Inside the housing 22, the differential piston 14 is also included an annular collar 23, which together with an inner annular shoulder 24 of the housing 22 acts to limit the movement of the differential piston 14 to the right in the drawing and thus to define the open position of the plate 12. Also supported on the collar 23 is the compression spring 13ab, which is accommodated in the housing 22 and rests with the other end on the right-hand end wall of the housing 22 adjacent to the plate 12 in the drawing. The interior 25 of the housing 22 communicates with the free atmosphere via a fluid line 26.

In die Kammer 15 des Stufenkolbens 11 und in die Kammer 20 mündet jeweils eine Strömungsmittelleitung 27 bzw. 28, und zwar im Bereich der in der Zeichnung linken Kammerstirnfläche bzw. im Bereich neben der konischen Sitzfläche 21 der Hülse 5. Die beiden Strömungsmittelleitungen 27 und 28 sind jeweils an einen Ausgang 29 bzw. 30 eines elektromagnetischen 4-Wege-Ventils 31 angeschlossen, dessen einer Eingang 32 über eine Strömungsmittelleitung 33 mit dem Strömungsmitteleinlaß 7 des Ventils in Verbindung steht, während dessen anderer Eingang 34 mit der freien Atmosphäre kommuniziert.A fluid line 27 or 28 opens into the chamber 15 of the stepped piston 11 and into the chamber 20, in the area of the left end face of the chamber in the drawing or in the area next to the conical seat surface 21 of the sleeve 5. The two fluid lines 27 and 28 are each connected to an outlet 29 or 30 of an electromagnetic 4-way valve 31, one inlet 32 of which is connected to the fluid inlet 7 of the valve via a fluid line 33, while the other inlet 34 communicates with the free atmosphere.

Das Ventil funktioniert folgendermaßen. In geöffnetem Zustand strömt das in der am Anschlußflansch 9 befestigten Strömungsmittelleitung zugeführte Strömungsmittel, beispielsweise Sauerstoff, vom Strömungsmitteleinlaß 7 des Ventils zu seinem Strömungsmittelauslaß 10, um in die am Deckel 3 befestigte Strömungsmittelleitung einzutreten, welche zu einem Konverter führt, dessen Inhalt mit dem Strömungsmittel behandelt werden soll, welches von unten her durch bodenseitige Düsen in den Konverter bzw. dessen Inhalt eingeblasen wird. Das elektromagnetische 4-Wege-Ventil 31 befindet sich in der in der Zeichnung links veranschaulichten Schaltstellung, so daß die Kammer 15 des Stufenkolbens 11 entlüftet ist und der von den Strömungsmittelleitungen 28 und 33 gebildete Bypaß zwischen Strömungsmitteleinlaß 7 des Ventils und dessen Kammer 20 geöffnet ist. Der Stufenkolben 11 liegt an der in der Zeichnung linken Stirnfläche der Kammer 15 an, dagegengedrückt durch den Druck des im Gehäuse 1 des Ventils befindlichen Strömungsmittels, so daß die Kammeröffnung 19 freigegeben ist. Auch der Teller 12 nimmt die Öffnungsstellung ein.The valve works as follows. In the open state, the fluid, for example oxygen, supplied in the fluid line attached to the connection flange 9 flows from the fluid inlet 7 of the valve to its fluid outlet 10 in order to enter the fluid line attached to the cover 3, which leads to a converter, the contents of which treat with the fluid which is blown from below through bottom nozzles into the converter or its contents. The electromagnetic 4-way valve 31 is in the switch position illustrated in the drawing on the left, so that the chamber 15 of the stepped piston 11 is vented and the bypass formed by the fluid lines 28 and 33 between the fluid inlet 7 of the valve and its chamber 20 is open . The stepped piston 11 lies against the left end face of the chamber 15 in the drawing, pressed against it by the pressure of the fluid located in the housing 1 of the valve, so that the chamber opening 19 is opened. The plate 12 also occupies the open position.

Soll nunmehr ein Wechsel der Strömungsmittel in der gemeinsamen Strömungsmittelleitung, d. h. stromab, im Strömungsmittelauslaß 10 von dem einen strömenden, nachfolgend erstes Strömungsmittel genannt, auf das andere einzuschaltende, nachfolgend zweites Strömungsmittel genannt, erfolgen, so wird zunächst das zweite Strömungsmittel, beispielsweise durch ein baugleiches Ventil, auf die gemeinsame Strömungsmittelleitung aufgeschaltet. Sobald dieses zweite, nichtdargestellte, Ventil durch einen entsprechenden Kontakt die Betriebsstellung « geöffnet » meldet, schaltet man das dargestellte Ventil auf den in der Zeichnung wiedergegebenen, geschlossenen Zustand um.If now a change of the fluids in the common fluid line, i. H. downstream, in the fluid outlet 10 from the one flowing, hereinafter referred to as the first fluid, to the other to be switched on, hereinafter referred to as the second fluid, the second fluid is first connected to the common fluid line, for example through an identical valve. As soon as this second valve, not shown, reports the operating position “open” through a corresponding contact, the valve shown is switched to the closed state shown in the drawing.

Der Druck in der gemeinsamen Strömungsmittelleitung stellt sich, sobald das zweite Strömungsmittel zugeschaltet ist, auf den höheren Druck der beiden Strömungsmittel ein, so daß in der gemeinsamen Strömungsmittelleitung immer der Druck eines der beiden Strömungsmittel wirkt. Ist beispielsweise der Druck des zweiten Strömungsmittels höher als der des ersten, so schließt der Teller 12 die Ventilkammer 20 und verhindert das Einströmen des zweiten Strömungsmittels in das Ventil für das erste Strömungsmittel. Bei umgekehrten Druckverhältnissen bleibt der Teller 12 des Ventils für das zweite Strömungsmittel solange geschlossen, bis durch den Schließvorgang des Ventils für das erste Strömungsmittel der Druck in der gemeinsamen Strömungsmittelleitung auf den Druck des zweiten Strömungsmittels gefallen ist.As soon as the second fluid is switched on, the pressure in the common fluid line adjusts to the higher pressure of the two fluids, so that the pressure of one of the two fluids always acts in the common fluid line. If, for example, the pressure of the second fluid is higher than that of the first, the plate 12 closes the valve chamber 20 and prevents the second fluid from flowing into the valve for the first fluid. When the pressure conditions are reversed, the plate 12 of the valve for the second fluid remains closed until the pressure in the common fluid line has dropped to the pressure of the second fluid as a result of the valve closing process for the first fluid.

Das dargestellte Ventil für das erste strömungsmittel wird zur Unterbrechung dieser Strömungsmittelleitung folgendermaßen in den in der Zeichnung wiedergegebenen, geschlossenen Zustand geschaltet. Das elektromagnetische 4-Wege-Ventil 31 wird in die in der Zeichnung rechts veranschaulichte Schaltstellung umgeschaltet, so daß nunmehr die in die Kammer 15 des Stufenkolbens 11 führende Strömungsmittelleitung 27 über die Strömungsmittelleitung 33 mit dem Strömungsmitteleinlaß 7 des Ventils und dessen Kammer 20 über die Strömungsmittelleitung 28 stattdessen mit der freien Atmosphäre kommuniziert. Der Stufenkolben 11 wird durch den sich in der Kammer 15 aufbauenden, auf seine rückwärtige, größere Wirkungsfläche einwirkenden Druck auf die Hüise 5 zu verschoben und gegen die Ringkante 18 gedrückt, um die Öffnung 19 der Kammer 20 zu verschließen, so daß kein Strömungsmittel mehr vom Strömungsmitteleinlaß 7 her in die Kammer 20 gelangen kann, welche über die Strömungsmittelleitung 28 entlüftet wird. Zugleich bewegt sich der Teller 12 aus der Öffnungsstellung in die Schließstellung, und zwar aufgrund der Wirkung der Druckfeder 13 und des Differentialkolbens 14 mit den entsprechend angeordneten Wirkungsflächen 14' und 14" unterschiedlicher Größe. Der Teller 12 gewährleistet also zuverlässig eine Rückschlagventilfunktion.The valve shown for the first fluid is switched to interrupt this fluid line as follows in the closed state shown in the drawing. The electromagnetic 4-way valve 31 is switched to the switching position illustrated on the right in the drawing, so that now the fluid line 27 leading into the chamber 15 of the stepped piston 11 via the fluid line 33 with the fluid inlet 7 of the valve and its chamber 20 via the fluid line 28 instead communicates with the free atmosphere. The stepped piston 11 is displaced by the pressure building up in the chamber 15, acting on its rear, larger effective area, on the sleeve 5 and pressed against the ring edge 18 to close the opening 19 of the chamber 20, so that no more fluid from the Fluid inlet 7 can get into the chamber 20, which is vented via the fluid line 28. At the same time, the plate 12 moves from the open position into the closed position, specifically because of the action of the compression spring 13 and the differential piston 14 with the correspondingly arranged effective surfaces 14 'and 14 "of different sizes. The plate 12 thus reliably ensures a check valve function.

Um das Ventil aus dem geschlossenen in den geöffneten Zustand umzuschalten, wird das elektromagnetische 4-Wege-Ventil 31 wieder in die in der Zeichnung links veranschaulichte Schaltstellung rückgeschaltet, so daß die Kammer 15 des Stufenkolbens 11 über die Strömungsmittelleitung 27 entlüftet und die Kammer 20 des Ventils über die Strömungsmittelleitung 28 mit Strömungsmittel vom Strömungsmitteleinlaß 7 des Ventils her beaufschlagt wird. Der Stufenkolben 11 wird in der Zeichnung nach links verschoben, um die Öffnung 19 der Kammer 20 freizugeben, so daß Strömungsmittel vom Strömungsmitteleinlaß 7 her einströmen kann. Der Teller 12 hebt von der konischen Sitzfläche 21 der Hülse 5 ab und wird in die Öffnungsstellung bewegt.In order to switch the valve from the closed to the open state, the electromagnetic 4-way valve 31 is switched back to the switching position illustrated on the left in the drawing, so that the chamber 15 of the stepped piston 11 is vented via the fluid line 27 and the chamber 20 of the Valve via the fluid line 28 is acted upon by fluid from the fluid inlet 7 of the valve. The step piston 11 is shifted to the left in the drawing to expose the opening 19 of the chamber 20 so that fluid can flow in from the fluid inlet 7. The plate 12 lifts off the conical seat surface 21 of the sleeve 5 and is moved into the open position.

Claims (5)

1. A valve for supplying a flow medium into a flow medium conduit which is alternately charged with different flow media, in particular the conduit of a converter for treating the converter content with different gaseous flow media, characterized in that
a) a chamber (20) is provided between the flow medium inlet (7) and the flow medium outlet (10),
b) this chamber being sealable by a piston . (11) on the side facing the flow medium inlet (7)
c) and by a disk (12) on the side facing the flow medium outlet (10),
d) the piston (11) being connectable on the side facing away from the chamber (20), and the chamber (20) being connectable, each via a separate flow medium conduit (27 and 28, respectively) alternatively to the flow medium inlet (7) and the free atmosphere for closing the chamber (20) by the piston (11) and venting the chamber, or with the free atmosphere and the flow medium inlet (7) for opening the chamber (20) by the piston (11), and
e) the disk (12) being loaded in the closed position by a spring (13) and a differential piston (14) with a larger area of action (14') on the side facing the flow medium outlet (10) and a smaller area of action (14") on the opposite side towards the chamber (20).
2. The valve as in claim 1, characterized in that the piston (11) has, on the side facing away from the chamber (20), a diameter larger than that of the corresponding opening (19) of the chamber.
3. The valve as in claim 1 or 2, characterized in that the differential piston (14) extends through a housing (22) provided in the middle of the chamber (20), said housing (22) accomodating the spring (13) and its interior (25) communicating with the free atmosphere.
4. The valve as in claims 1, 2 or 3, characterized in that the two flow medium conduits (27 and 28) leading. to the piston (11) and into the chamber (20), respectively, are connected to the two outlets (29 and 30) of an electromagnetic four-way valve (31), both of whose inlets (32 and 34) communicate with the flow medium inlet (7) via a flow medium conduit (33) and with the free atmosphere.
5. The valve as in any of the above claims, characterized in that the chamber (20), the piston (11), the disk (12) and the differential piston (14) provided on the latter are arranged coaxially to each other and to the flow medium outlet (10), while the flow medium inlet (7) is oriented perpendicular thereto.
EP19820110039 1981-11-04 1982-10-29 Fluid feeding valve Expired EP0079507B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82110039T ATE12523T1 (en) 1981-11-04 1982-10-29 VALVE FOR FLUID FEED.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3143795A DE3143795C2 (en) 1981-11-04 1981-11-04 "Fluid supply valve"
DE3143795 1981-11-04

Publications (2)

Publication Number Publication Date
EP0079507A1 EP0079507A1 (en) 1983-05-25
EP0079507B1 true EP0079507B1 (en) 1985-04-03

Family

ID=6145599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820110039 Expired EP0079507B1 (en) 1981-11-04 1982-10-29 Fluid feeding valve

Country Status (5)

Country Link
US (1) US4561466A (en)
EP (1) EP0079507B1 (en)
JP (1) JPS58130213A (en)
AT (1) ATE12523T1 (en)
DE (1) DE3143795C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60205075A (en) * 1984-03-28 1985-10-16 Kawasaki Steel Corp Select valve for fluid blowing in molten metal holder
DE4238020C2 (en) * 1992-11-11 1994-08-11 Kct Tech Gmbh Procedure for the operation of a multimedia nozzle and the nozzle system
DE19847997B4 (en) * 1998-10-17 2006-12-21 Bosch Rexroth Aktiengesellschaft Hydraulic check valve, in particular filling valve
US10400911B2 (en) * 2017-11-30 2019-09-03 Sensata Technologies, Inc. In-line fluid pressure regulator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1630666A (en) * 1926-03-25 1927-05-31 Jr Joseph Henry Mcevoy Wash plug
US3035609A (en) * 1958-01-02 1962-05-22 Phillips Petroleum Co Fluid handling structure
US2970806A (en) * 1960-01-21 1961-02-07 Gen Electric Balanced governing valve with minimum reaction gradients
FR1263250A (en) * 1960-04-07 1961-06-09 Zenith Carburateur Soc Du Safety device for pressurized fluid distribution installation, with a view in particular to protection against ruptured fuel lines
US3399689A (en) * 1965-10-18 1968-09-03 Victor Equipment Co Control valve including independently operable pilot valves
US3895785A (en) * 1972-08-01 1975-07-22 United States Steel Corp Method and apparatus for controlling the operation of a steel refining converter
FR2292771A1 (en) * 1974-11-28 1976-06-25 Creusot Loire METHOD OF INJECTING A POWDER PROVIDING CARBON IN A METAL BATH
US4330326A (en) * 1979-08-24 1982-05-18 Eisenwerk-Gesellschaft Maximilianshutte Mbh. Method and a means for introducing close-grained carbonaceous fuels into a molten iron bath
JPS57143421A (en) * 1981-02-27 1982-09-04 Nippon Steel Corp Switching method for bottom blowing gas

Also Published As

Publication number Publication date
US4561466A (en) 1985-12-31
JPS6158523B2 (en) 1986-12-12
DE3143795A1 (en) 1983-05-11
JPS58130213A (en) 1983-08-03
DE3143795C2 (en) 1983-10-20
EP0079507A1 (en) 1983-05-25
ATE12523T1 (en) 1985-04-15

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