EP0256492B1 - Locking valve for shelter ventilation pipes - Google Patents

Locking valve for shelter ventilation pipes Download PDF

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Publication number
EP0256492B1
EP0256492B1 EP87111600A EP87111600A EP0256492B1 EP 0256492 B1 EP0256492 B1 EP 0256492B1 EP 87111600 A EP87111600 A EP 87111600A EP 87111600 A EP87111600 A EP 87111600A EP 0256492 B1 EP0256492 B1 EP 0256492B1
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EP
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Prior art keywords
valve
air
air feed
cyclones
feed line
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EP87111600A
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German (de)
French (fr)
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EP0256492A1 (en
Inventor
Friedrich-Ernst Dipl.-Ing. Müller
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ANTON PILLER GmbH and Co KG
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ANTON PILLER GmbH and Co KG
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B13/00—Special devices for ventilating gasproof shelters

Definitions

  • the invention relates to a shut-off valve for shelter ventilation ducts according to the preamble of claim 1.
  • the air supply line is surrounded by two coaxial channels, which are connected to one another at their ends opposite the valve closure body.
  • the shock front of a pressure wave strikes the valve closure member directly here, while the mass-bearing pressure wave forces an extended path from the end of the air supply line to the valve passage to ensure that the shock front has brought the valve body into its closed position before the pressure wave passes through the air duct through the Channels has reached the valve passage.
  • a closure valve is also known, in which a single channel is provided, which begins at the mouth of a pressure line leading to the valve closure plate, and in which a screw-shaped wall extends the path of the air duct to the valve passage (DE-B 1 153 259) .
  • centrifugal dust separators with a plurality of centrifugal dust separators in which the individual centrifugal separators are arranged next to one another in a housing and the dust discharge cones of the centrifugal separators open into a common dust collecting chamber, which at its lowest point extends across a slot-shaped slot-shaped chamber that extends across the width of the dust collecting chamber Opening is connected to a dust extraction chamber and a dust extraction nozzle with which the centrifugal dust separator can be connected to a suction fan (DE-B 1 507 842).
  • the object of the invention is to provide a combination consisting of a pressure surge protection device with an air duct designed as a deflection and extension of the path and a mechanical dust filter which can be implemented in a compact design.
  • the function of the path deflection and extension which is required to increase the running time of the incident shock front or mass-affected pressure wave, is given by the mechanical filter designed as a centrifugal separator through the swirl paths functionally required in the separator rooms (cyclones) for dust separation and to the immersion tube 180 ° deflection reached.
  • Swirl channels, 180 ° deflection and immersion tube thus fulfill two functions. They effect the dust separation by centrifugal force and deflection and serve to extend the running time of the shock front of the pressure wave up to the valve passage, so that it is longer than the closing time of the valve closing body.
  • the closure valve 2 shown in Fig. 1 has an annular air housing 4, which is provided at one end with a lid-shaped outlet housing 6 with an outlet port 8. At the other end of the housing 4, a lid-shaped air inlet housing 10 is provided, which is provided with an inlet connector 12. This housing 10 is connected via an intermediate flange 14 to the housing 4, in which a residual gas outlet channel 16 is formed.
  • an intermediate wall 18 is arranged, which is provided in the middle in the direction of the outlet port 8 with a cylindrical collar 20 which, together with a cylinder ring 22, forms a U-shaped annular channel 24 in which a valve closure body 26 is guided with a cylindrical projection 27.
  • the valve closure body is axially movable and is held in the open position shown by essentially radial tension springs 28 with slight pretension.
  • the associated valve seat 30 is formed on the outlet port 8 of the outlet housing 6.
  • a valve closure body 36 of a suction protection device is arranged, which in turn is held in the open position by tension springs 38, in which it rests against stop ribs 40, which are formed on the intermediate flange 14.
  • the valve closure body 36 cooperates with a valve seat 42 at the inner end of the inlet connector 12.
  • a plurality of radial ribs 13 and 9 are provided in the form of a star in the inlet connection 12 and in the outlet connection 8, respectively, as stops for the valve closure members 36 and 26, respectively.
  • a central air supply duct 44 is formed, which here is provided at its downstream end with an air guide profile 46, which is followed by a radial extension 48, which together with the intermediate wall 18 forms a radially inwardly open annular duct as an air supply chamber for the cyclones to be described below.
  • two inner circles 50 of a plurality of cyclones of a multicyclone are formed on two partial circles A and B. These housing contours are cast into the wall of the fuselage housing with axes parallel to the housing axis.
  • Air outlet tubes 52 engage in these cyclone housings integrally formed in the fuselage housing 4, around which outside in the housing inlet in the usual manner Swirl body 54 are provided. With their opposite end, the outlet pipes 52 of the individual cyclones are sealingly guided through the intermediate wall 18. They open into an annular channel 56 which merges into the valve passage 29.
  • the dust discharge end 58 of the cyclone housing 50 ends in the radial end wall 60 of the housing 4, which closes the annular channel 16 open to the housing 4 in the intermediate flange 14.
  • the ring channel 16 is provided with an outlet nozzle 62 through which the dust-laden residual air exits, which exits the cyclones into the ring channel 16.
  • An air-conveying fan can be arranged on the suction or pressure side of the valve. If necessary, a suction fan can be connected to the outlet 62.
  • untreated air passes through the intake port 34 and, if provided, on the outside of the valve closure member 36 of the suction protection device into the air duct 44 and from here radially into the annular duct 48, from which it flows with the opposite direction of flow via the swirl body 54 in a more uniform manner Distribution occurs in the individual cyclones, from which in the vortex core clean air is discharged via the air outlet pipes 52, which then exits through the valve passage of the pressure surge valve and the outlet port 8.
  • the cross section of the air duct 44 is to be selected as a function of the air throughput of all cyclones.
  • a pure multicyclone can also be produced with the same components from which the valve described above is formed.
  • the valve closure body 26 is omitted, and a continuous partition wall 18 is then provided, in front of which the air supply line 44 then ends.
  • the valve closure member 36 of the suction valve is also omitted here.
  • a closure valve with an annular housing 70 is again provided, to which a multicyclone 72 is connected on one side, preferably being cast on directly.
  • the cyclone housings 74 are cast in rows in this multicyclone.
  • the cyclone housings of adjacent rows are preferably offset by half a pitch T / 2, so that the cyclone housings of adjacent rows are each nested in order to be able to accommodate the largest possible number of cyclone housings in a given volume.
  • An air transfer duct 75 is again arranged above the multicyclone 72, into which the air passes laterally from the air duct 78 in accordance with the flow thread 76 shown.
  • the partition wall 84 between the clean air collection chamber 80 with the air outlet connection 82 and the valve passage 81 on the one hand and the housing 70 on the other hand extends to the cyclone housing of the multicyclone 72.
  • the residual air collecting duct 92 into which the residual air outlet openings of the cyclones open, is formed here on the air inlet housing 94, which carries the inlet port 96.
  • the residual air collecting duct 92 is provided with an outlet connection 98.
  • a multicyclone arranged laterally on the fuselage housing 74 of the closure valve can have a width perpendicular to the view in the drawing, which can correspond to the diameter of the annular housing 70.
  • the cyclones of the multicyclone can also extend as circular ring sections over a limited part of the circumference of the housing 70.
  • the shut-off valve with the attached multi-cyclone can be adapted to the respective installation conditions.
  • the cyclone housings are integrally molded into a housing.
  • the cyclones with separate housings, for example made of injection-molded plastic housings, in appropriately prepared chambers of the valve.

Description

Die Erfindung bezieht sich auf ein Verschlußventil für Schutzraumbelüftungsleitungen nach dem Oberbegriff des Patentanspruches 1.The invention relates to a shut-off valve for shelter ventilation ducts according to the preamble of claim 1.

Bei einem bekannten Verschlußventil der genannten Art (DE-AS 12 93 605) ist die Luftzuführungsleitung von zwei gleichachsigen Kanälen ringförmig umgeben, die an ihren dem Ventilverschlußkörper entgegengesetzten Enden miteinander in Verbindung stehen. Die Stoßfront einer Druckwelle trifft hier direkt auf das Ventilverschlußglied auf, während der massebehafteten Druckwelle vom Ende der Luftzuführungsleitung zum Ventildurchgang ein verlängerter Weg aufgezwungen wird, um sicherzustellen, daß die Stoßfront den Ventilkörper in seine Schließlage gebracht hat, bevor die Druckwelle über die Luftführung durch die Kanäle den Ventildurchgang erreicht hat.In a known closure valve of the type mentioned (DE-AS 12 93 605), the air supply line is surrounded by two coaxial channels, which are connected to one another at their ends opposite the valve closure body. The shock front of a pressure wave strikes the valve closure member directly here, while the mass-bearing pressure wave forces an extended path from the end of the air supply line to the valve passage to ensure that the shock front has brought the valve body into its closed position before the pressure wave passes through the air duct through the Channels has reached the valve passage.

Es ist weiter ein Verschlußventil bekannt, bei dem ein einziger Kanal vorgesehen ist, der an der Einmündung einer zum Ventilverschlußteller führenden Druckleitung beginnt und in dem durch eine schraubenförmig angeordnete Wandung eine Wegverlängerung in der Luftführung zum Ventildurchgang bewirkt wird (DE-B 1 153 259).A closure valve is also known, in which a single channel is provided, which begins at the mouth of a pressure line leading to the valve closure plate, and in which a screw-shaped wall extends the path of the air duct to the valve passage (DE-B 1 153 259) .

Bekannt sind weiter Fliehkraftstaubabscheider mit einer Mehrzahl von Fliehkraftstaubabscheidern (Multizyklone), bei denen die einzelnen Fliehkraftabscheider nebeneinander in einem Gehäuse angeordnet sind und die Staubaustragskegel der Fliehkraftabscheider in einer gemeinsamen Staubsammelkammer münden, die an ihrer tiefsten Stelle über eine sich über die Breite der Staubsammelkammer erstreckende schlitzförmige Öffnung mit einer Staubabsaugkammer und einem Staubabsaugstutzen verbunden ist, mit dem der Fliehkraftstaubabscheider an ein Absauggebläse anschließbar ist (DE-B 1 507 842).Also known are centrifugal dust separators with a plurality of centrifugal dust separators (multicyclones), in which the individual centrifugal separators are arranged next to one another in a housing and the dust discharge cones of the centrifugal separators open into a common dust collecting chamber, which at its lowest point extends across a slot-shaped slot-shaped chamber that extends across the width of the dust collecting chamber Opening is connected to a dust extraction chamber and a dust extraction nozzle with which the centrifugal dust separator can be connected to a suction fan (DE-B 1 507 842).

Aufgabe der Erfindung ist es, eine Kombination bestehend aus einer Druckstoßsicherung mit einer als Wegumlenkung und -verlängerung ausgebildeten Luftführung und einem mechanischen Staubfilter zu schaffen, die in kompakter Bauweise realisierbar ist.The object of the invention is to provide a combination consisting of a pressure surge protection device with an air duct designed as a deflection and extension of the path and a mechanical dust filter which can be implemented in a compact design.

Diese Aufgabe wird gemäß der Erfindung ausgehend von einem Verschlußventil nach dem Oberbegriff des Patentanspruches 1 gelöst durch die im kennzeichnenden Teil des Patentanspruches 1 herausgestellten Merkmale.This object is achieved according to the invention based on a shutoff valve according to the preamble of claim 1 by the features highlighted in the characterizing part of claim 1.

Zweckmäßige Ausgestaltungen sind Gegenstand der Unteransprüche.Appropriate configurations are the subject of the subclaims.

Die Funktion der Wegumlenkung und -verlängerung, die zum Heraufsetzen der Laufzeit der einfallenden Stoßfront bzw. massebehafteten Druckwelle erforderlich ist, wird hierbei durch das als Zentrifugalabscheider ausgebildete mechanische Filter durch die in den Abscheideräumen (Zyklonen) funktionsmäßig zur Staubabscheidung benötigten Drallwege und zum Tauchrohr hin gegebene 180° Umlenkung erreicht. Drallkanäle, 180° Umlenkung und Tauchrohr erfüllen somit zwei Funktionen. Sie bewirken die Staubabscheidung durch Fliehkraft und Umlenkung und dienen der Verlängerung der Laufzeit der Stoßfront der Druckwelle bis zum Ventildurchgang, so daß diese länger ist als die Schließzeit des Ventilschlußkörpers.The function of the path deflection and extension, which is required to increase the running time of the incident shock front or mass-affected pressure wave, is given by the mechanical filter designed as a centrifugal separator through the swirl paths functionally required in the separator rooms (cyclones) for dust separation and to the immersion tube 180 ° deflection reached. Swirl channels, 180 ° deflection and immersion tube thus fulfill two functions. They effect the dust separation by centrifugal force and deflection and serve to extend the running time of the shock front of the pressure wave up to the valve passage, so that it is longer than the closing time of the valve closing body.

Die Erfindung ist in der Zeichnung in zwei Ausführungsbeispielen veranschaulicht und nachstehend im einzelnen anhand der Zeichnung beschrieben. Es zeigen:

  • Fig. 1 einen Längsschnitt durch eine erste Ausführungsform.
  • Fig. 2 einen Längsschnitt durch eine zweite Ausführungsform.
The invention is illustrated in the drawing in two exemplary embodiments and described in detail below with reference to the drawing. Show it:
  • Fig. 1 shows a longitudinal section through a first embodiment.
  • Fig. 2 shows a longitudinal section through a second embodiment.

Das in Fig. 1 dargestellte Verschlußventil 2 weist ein ringförmiges Luftgehäuse 4 auf, das auf seinem einen Ende mit einem deckelförmigen Auslaßgehäuse 6 mit einem Auslaßstutzen 8 versehen ist. Am anderen Ende des Gehäuses 4 ist ein deckelförmiges Lufteinlaßgehäuse 10 vorgesehen, der mit einem Einlaßstutzen 12 versehen ist. Dieses Gehäuse 10 ist über einen Zwischenflansch 14 mit dem Gehäuse 4 verbunden, in dem ein Restgasauslaßkanal 16 ausgebildet ist.The closure valve 2 shown in Fig. 1 has an annular air housing 4, which is provided at one end with a lid-shaped outlet housing 6 with an outlet port 8. At the other end of the housing 4, a lid-shaped air inlet housing 10 is provided, which is provided with an inlet connector 12. This housing 10 is connected via an intermediate flange 14 to the housing 4, in which a residual gas outlet channel 16 is formed.

Zwischen dem Auslaßgehäuse 6 und dem Gehäuse 4 ist eine Zwischenwand 18 angeordnet, die in der Mitte in Richtung auf den Auslaßstutzen 8 mit einem zylinderringförmigen Kragen 20 versehen ist, der zusammen mit einem Zylinderring 22 einen U-förmigen Ringkanal 24 bildet, in dem ein Ventilverschlußkörper 26 mit einem zylindrischen Ansatz 27 geführt ist. Der Ventilverschlußkörper ist axial beweglich und wird durch im wesentlichen radiale Zugfedern 28 mit leichter Vorspannung in der dargestellten Offen-Stellung gehalten. Der zugehörige Ventilsitz 30 ist am Auslaßstutzen 8 des Auslaßgehäuses 6 ausgebildet.Between the outlet housing 6 and the housing 4, an intermediate wall 18 is arranged, which is provided in the middle in the direction of the outlet port 8 with a cylindrical collar 20 which, together with a cylinder ring 22, forms a U-shaped annular channel 24 in which a valve closure body 26 is guided with a cylindrical projection 27. The valve closure body is axially movable and is held in the open position shown by essentially radial tension springs 28 with slight pretension. The associated valve seat 30 is formed on the outlet port 8 of the outlet housing 6.

Im Bereich des Einlaßgehäuses10 und des Zwischenflansches 14 ist in einer durch die beiden Teile gebildeten Erweiterung 32 des Luftzufuhrkanals 34 ein Ventilverschlußkörper 36 einer Sogsicherung angeordnet, die wiederum über Zugfedern 38 in der Offen-Stellung gehalten wird, in der es gegen Anschlagrippen 40 anliegt, die am Zwischenflansch 14 ausgebildet sind. Der Ventilverschlußkörper 36 arbeitet mit einem Ventilsitz 42 am inneren Ende des Einlaßstutzens 12 zusammen.In the area of the inlet housing 10 and the intermediate flange 14, in a widening 32 of the air supply duct 34 formed by the two parts, a valve closure body 36 of a suction protection device is arranged, which in turn is held in the open position by tension springs 38, in which it rests against stop ribs 40, which are formed on the intermediate flange 14. The valve closure body 36 cooperates with a valve seat 42 at the inner end of the inlet connector 12.

Im Einlaßstutzen 12 bzw. im Auslaßstutzen 8 ist jeweils sternförmig eine Vielzahl radialer Rippen 13 bzw. 9 als Anschläge für die Ventilverschlußglieder 36 bzw. 26 vorgesehen. In dem ringförmigen Gehäuse 4 ist ein zentraler Luftzuführungskanal 44 ausgebildet, der hier an seinem stromabwärtigen Ende mit einem Luftleitprofil 46 versehen ist, an das sich eine radiale Erweiterung 48 anschließt, die zusammen mit der Zwischenwand 18 einen radial nach innen offenen Ringkanal als Luftzuführkammer für die unten zu beschriebenden Zyklone bildet.A plurality of radial ribs 13 and 9 are provided in the form of a star in the inlet connection 12 and in the outlet connection 8, respectively, as stops for the valve closure members 36 and 26, respectively. In the annular housing 4, a central air supply duct 44 is formed, which here is provided at its downstream end with an air guide profile 46, which is followed by a radial extension 48, which together with the intermediate wall 18 forms a radially inwardly open annular duct as an air supply chamber for the cyclones to be described below.

In der Wandung des ringförmigen Gehäuses 4 sind auf zwei Teilkreisen A und B Gehäuseinnenkonturen 50 einer Vielzahl von Zyklonen eines Multizyklons ausgebildet. Diese Gehäusekonturen sind in die Wandung des Rumpfgehäuses mit zur Gehäuseachse parallelen Achsen eingegossen. In diese integral in dem Rumpfgehäuse 4 ausgebildeten Zyklongehäuse greifen Luftauslaßrohre 52 ein, um die außen herum in üblicher Weise im Gehäuseeinlaß Drallkörper 54 vorgesehen sind. Mit ihrem gegenüberliegenden Ende sind die Auslaßrohre 52 der einzelnen Zyklone dichtend durch die Zwischenwand 18 hindurchgeführt. Sie münden in einem Ringkanal 56, der in den Ventildurchgang 29 übergeht.In the wall of the annular housing 4, two inner circles 50 of a plurality of cyclones of a multicyclone are formed on two partial circles A and B. These housing contours are cast into the wall of the fuselage housing with axes parallel to the housing axis. Air outlet tubes 52 engage in these cyclone housings integrally formed in the fuselage housing 4, around which outside in the housing inlet in the usual manner Swirl body 54 are provided. With their opposite end, the outlet pipes 52 of the individual cyclones are sealingly guided through the intermediate wall 18. They open into an annular channel 56 which merges into the valve passage 29.

Das Staubaustragsende 58 der Zyklongehäuse 50 endet in der radialen Endwand 60 des Gehäuses 4, die den zum Gehäuse 4 offenen Ringkanal 16 in dem Zwischenflansch 14 abschließt. Der Ringkanal 16 ist mit einem Auslaßstutzen 62 versehen, durch den die staubbeladene Restluft austritt, die aus den Zyklonen in den Ringkanal 16 austritt.The dust discharge end 58 of the cyclone housing 50 ends in the radial end wall 60 of the housing 4, which closes the annular channel 16 open to the housing 4 in the intermediate flange 14. The ring channel 16 is provided with an outlet nozzle 62 through which the dust-laden residual air exits, which exits the cyclones into the ring channel 16.

An das Ventil kann saug- oder druckseitig ein die Luft förderndes Gebläse angeordnet sein. An den Austritt 62 kann, soweit erforderlich, ein Sauggebläse angeschlossen werden.An air-conveying fan can be arranged on the suction or pressure side of the valve. If necessary, a suction fan can be connected to the outlet 62.

Wie durch den Stromfaden 64 angedeutet, gelangt Rohluft durch den Ansaugstutzen 34 und, soweit vorgesehen, außen an dem Ventilverschlußkörper 36 der Sogsicherung in den Luftführungskanal 44 und von hier radial in den Ringkanal 48, aus dem er mit umgekehrter Strömungsrichtung über die Drallkörper 54 in gleichmäßiger Verteilung in die einzelnen Zyklone eintritt, aus denen im Wirbelkern Reinluft über die Luftauslaßrohre 52 abgeführt wird, die dann über den Ventildurchgang des Druckstoßventils und den Auslaßstutzen 8 austritt. Der Querschnitt des Luftführungskanal 44 ist in Abhängigkeit vom Luftdurchsatz aller Zyklone zu wählen.As indicated by the flow thread 64, untreated air passes through the intake port 34 and, if provided, on the outside of the valve closure member 36 of the suction protection device into the air duct 44 and from here radially into the annular duct 48, from which it flows with the opposite direction of flow via the swirl body 54 in a more uniform manner Distribution occurs in the individual cyclones, from which in the vortex core clean air is discharged via the air outlet pipes 52, which then exits through the valve passage of the pressure surge valve and the outlet port 8. The cross section of the air duct 44 is to be selected as a function of the air throughput of all cyclones.

Die beschriebene Anordnung ergibt ein Multizyklon sehr gedrängter Bauweise, das hier im wesentlichen ohne zusätzliches Bauvolumen mit einer Druckstoß- und Sogsicherung kombiniert ist. Tritt ein Druckstoß auf, bewegt dessen Stoßfront den Ventilverschlußkörper 26 in die Schließstellung. Die Luft der massebehafteten Druckwelle wird radial nach außen umgelenkt und auf die Vielzahl von einzelnen Zyklonen aufgeteilt. Zur Drallerzeugung in den Drallkanälen der Zyklone wird Energie verbraucht. Diese in den Drallkanälen der Zyklone verbrauchte Drallenergie, ausgedrückt durch den Strömungswiderstand, bewirkt zusätzlich zur Laufzeitverzögerung eine Druckabsorption der massebehafteten Druckwelle.The arrangement described results in a multicyclone of a very compact design, which is combined here with pressure surge and suction protection essentially without additional construction volume. If a pressure surge occurs, its impact front moves the valve closure body 26 into the closed position. The air of the mass-affected pressure wave is deflected radially outwards and divided into the large number of individual cyclones. Energy is used to generate swirl in the swirl channels of the cyclones. This swirl energy consumed in the swirl channels of the cyclones, expressed by the flow resistance, causes pressure absorption of the mass-affected pressure wave in addition to the transit time delay.

Mit den gleichen Bauteilen, aus denen aus vorbeschriebene Ventil ausgebildet ist, läßt sich auch ein reiner Multizyklon herstellen. In diesem Fall entfällt der Ventilverschlußkörper 26, und es wird dann eine durchgehende Zwischenwand 18 vorgesehen, vor der dann die Luftzuführungsleitung 44 endet. Auch der Ventilverschlußkörper 36 des Sogventils wird hierbei fortgelassen.A pure multicyclone can also be produced with the same components from which the valve described above is formed. In this case, the valve closure body 26 is omitted, and a continuous partition wall 18 is then provided, in front of which the air supply line 44 then ends. The valve closure member 36 of the suction valve is also omitted here.

Bei der zweiten Ausführungsform, die in Fig. 2 dargestellt ist, ist wiederum ein Verschlußventil mit einem ringförmigen Gehäuse 70 vorgesehen, an das einseitig ein Multizyklon 72 angeschlossen ist, vorzugsweise direkt angegossen ist. In diesem Multizyklon sind in Reihen jeweils die Zyklongehäuse 74 eingegossen. Die Zyklongehäuse benachbarter Reihen sind vorzugsweise um eine halbe Teilung T/2 versetzt, so daß die Zyklongehäuse benachbarter Reihen jeweils genestet sind, um in einem gegebenen Volumen eine möglichst große Anzahl von Zyklongehäusen unterbringen zu können. Oberhalb des Multizyklons 72 ist hier wiederum ein Luftübertrittskanal 75 angeordnet, in den die Luft entsprechend dem eingezeichneten Stromfaden 76 seitlich aus dem Luftführungskanal 78 übertritt. Auch die Trennwand 84 zwischen der Reinluftsammelkammer 80 mit dem Luftaustrittsstutzen 82 und dem Ventildurchgang 81 einerseits und dem Gehäuse 70 andererseits erstreckt sich bis über die Zyklongehäuse des Multizyklons 72. Durch die Trennwand 84 sind hier wiederum abdichtend die Enden der Reinluftauslaßrohre 86 hindurchgeführt. Bezüglich Einzelheiten der Druckstoßsicherung 88 und der Sogsicherung 90 wird auf die Beschreibung der Ausführungsform nach Fig. 1 verwiesen.In the second embodiment, which is shown in FIG. 2, a closure valve with an annular housing 70 is again provided, to which a multicyclone 72 is connected on one side, preferably being cast on directly. The cyclone housings 74 are cast in rows in this multicyclone. The cyclone housings of adjacent rows are preferably offset by half a pitch T / 2, so that the cyclone housings of adjacent rows are each nested in order to be able to accommodate the largest possible number of cyclone housings in a given volume. An air transfer duct 75 is again arranged above the multicyclone 72, into which the air passes laterally from the air duct 78 in accordance with the flow thread 76 shown. The partition wall 84 between the clean air collection chamber 80 with the air outlet connection 82 and the valve passage 81 on the one hand and the housing 70 on the other hand extends to the cyclone housing of the multicyclone 72. With regard to details of the pressure surge protection 88 and the suction protection 90, reference is made to the description of the embodiment according to FIG. 1.

Der Restluftsammelkanal 92, in den die Restluftauslaßöffnungen der Zyklone münden, ist hier am Lufteinlaßgehäuse 94 ausgebildet, der den Einlaßstutzen 96 trägt. Der Restluftsammelkanal 92 ist mit einem Auslaßstutzen 98 versehen.The residual air collecting duct 92, into which the residual air outlet openings of the cyclones open, is formed here on the air inlet housing 94, which carries the inlet port 96. The residual air collecting duct 92 is provided with an outlet connection 98.

Ein seitlich an dem Rumpfgehäuse 74 des Verschlußventils angeordneter Multizyklon kann senkrecht zur Ansicht in der Zeichnung gesehen eine Breite haben, die dem Durchmesser des ringförmigen Gehäuses 70 entsprechen kann. Die Zyklone des Multizyklons können sich aber auch als Kreisringabschnitte über einen begrenzten Teil des Umfangs des Gehäuses 70 erstrecken. Durch entsprechende Wahl ist das Verschlußventil mit dem angebauten Multizyklon an die jeweiligen Einbauverhältnisse anpaßbar.A multicyclone arranged laterally on the fuselage housing 74 of the closure valve can have a width perpendicular to the view in the drawing, which can correspond to the diameter of the annular housing 70. However, the cyclones of the multicyclone can also extend as circular ring sections over a limited part of the circumference of the housing 70. With a suitable choice, the shut-off valve with the attached multi-cyclone can be adapted to the respective installation conditions.

Im vorstehenden sind die Gehäuse der Zyklone in ein Gehäuse integral eingegossen. Es ist aber auch möglich, die Zyklone mit gesonderten Gehäusen, beispielsweise aus kunststoffgespritzen Gehäusen, in entsprechend vorbereitete Kammern des Ventils einzusetzen.In the above, the cyclone housings are integrally molded into a housing. However, it is also possible to use the cyclones with separate housings, for example made of injection-molded plastic housings, in appropriately prepared chambers of the valve.

Claims (6)

1. Sealing valve for shelter ventilation lines with a valve sealing body (26; 88) displaceable against a spring force acting in the opening direction and an air feed line (44; 78) directed towards the valve sealing body and ending coaxially with the valve sealing body and ending coaxially with the valve sealing body and at a distance in front of the valve sealing body, and with an air feed designed as a path deflection and extension piece between the end of the air feed line lying in front of the valve sealing body and the valve throat (29; 81), characterised in that the air feed is designed as a multicyclone with a number cyclones (50; 74) parallel to each other and to the axis of the air feed line, the inlets of which start from a widening (48; 75) extending laterally from the end of the air feed line, and the pure air outlet lines (52; 86) of which extend, sealed by a partition (18; 84) lying diagonal to the air feed line (44; 78) of the valve, into a chamber (56; 80) in front of the valve throat (29; 81), and that on the valve housing (4; 70) in the region of the inlet of the air fed line there is provided a residual air collecting channel (16; 92) into which the cyclones issue with their conical ends (58) and which is provided with a residual air outlet opening (62; 98).
2. Sealing valve according to claim 1, characterised in that the multicyclone (72) is arranged on one side in/on the valve housing (70).
3. Sealing valve according to claim 1, characterised in that the multicyclone is arranged in annular form around the air teed line (44) and that between the partition (18) and the inlet of the cyclones (50) there is provided an annular channel (48) open towards the air feed line; through which the pure air outlet pipes (52) of the cyclones (50) are led.
4. Sealing valve according to claim 3, characterised in that the cyclones (50) are arranged on at least two partial circles (A, B) with different diameters.
5. Sealing valve according to claim 1, characterised in that on the inlet end of the air feed line (44; 78) a suction valve (36; 90) is provided.
6. Sealing valve according to anyone of the foregoing claims, characterised in that the cyclone housings (50; 74) are parts of a cast housing.
EP87111600A 1986-08-13 1987-08-11 Locking valve for shelter ventilation pipes Expired - Lifetime EP0256492B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3627490 1986-08-13
DE19863627490 DE3627490A1 (en) 1986-08-13 1986-08-13 LOCKING VALVE FOR SAFE VENTILATION PIPES

Publications (2)

Publication Number Publication Date
EP0256492A1 EP0256492A1 (en) 1988-02-24
EP0256492B1 true EP0256492B1 (en) 1990-04-18

Family

ID=6307318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111600A Expired - Lifetime EP0256492B1 (en) 1986-08-13 1987-08-11 Locking valve for shelter ventilation pipes

Country Status (2)

Country Link
EP (1) EP0256492B1 (en)
DE (2) DE3627490A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1507842B2 (en) * 1966-12-05 1973-01-11 Anton Piller Kg, 3360 Osterode Centrifugal dust separator for the intake air of internal combustion engines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293605B (en) *
DE1739315U (en) * 1956-09-12 1957-02-07 Theo Horstkoetter DUST COLLECTOR WITH A VARIETY OF CYCLONES.
DE1434913C3 (en) * 1962-12-24 1975-07-17 Ewers & Miesner Hartgusswerk Und Maschinenfabrik Gmbh, 2400 Luebeck Automatic shut-off valve for air supply and discharge lines in shelters
DE1434912A1 (en) * 1962-12-24 1969-01-30 Ewers & Miesner Hartgusswerk U Automatic shut-off valve for air supply and discharge lines from protective rooms
DE1434911C3 (en) * 1962-12-24 1974-07-25 Ewers & Miesner Hartgusswerk Und Maschinenfabrik Gmbh, 2400 Luebeck Automatic shut-off valve for air supply and discharge lines in shelters

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1507842B2 (en) * 1966-12-05 1973-01-11 Anton Piller Kg, 3360 Osterode Centrifugal dust separator for the intake air of internal combustion engines

Also Published As

Publication number Publication date
EP0256492A1 (en) 1988-02-24
DE3627490A1 (en) 1988-02-18
DE3627490C2 (en) 1989-07-13
DE3762310D1 (en) 1990-05-23

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